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df169fb121
netpbm/netpbm-security-code.patch
Josef Řídký df169fb121 Update security code patch
2020-01-06 09:52:20 +01:00

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diff --git a/analyzer/pgmtexture.c b/analyzer/pgmtexture.c
index 5883327..eb8cf70 100644
--- a/analyzer/pgmtexture.c
+++ b/analyzer/pgmtexture.c
@@ -98,6 +98,8 @@ vector(unsigned int const nl,
assert(nh >= nl);
+ overflow_add(nh - nl, 1);
+
MALLOCARRAY(v, (unsigned) (nh - nl + 1));
if (v == NULL)
@@ -129,6 +131,7 @@ matrix (unsigned int const nrl,
assert(nrh >= nrl);
/* allocate pointers to rows */
+ overflow_add(nrh - nrl, 1);
MALLOCARRAY(m, (unsigned) (nrh - nrl + 1));
if (m == NULL)
pm_error("Unable to allocate memory for a matrix.");
@@ -137,6 +140,7 @@ matrix (unsigned int const nrl,
assert (nch >= ncl);
+ overflow_add(nch - ncl, 1);
/* allocate rows and set pointers to them */
for (i = nrl; i <= nrh; ++i) {
MALLOCARRAY(m[i], (unsigned) (nch - ncl + 1));
diff --git a/converter/other/gemtopnm.c b/converter/other/gemtopnm.c
index d862213..5f1a51a 100644
--- a/converter/other/gemtopnm.c
+++ b/converter/other/gemtopnm.c
@@ -36,7 +36,7 @@
* read 4-plane color IMG files. Therefore changed from PBM to PPM.
* Bryan changed it further to use the PNM facilities so it outputs
* both PBM and PPM in the Netpbm tradition. Name changed from
- * gemtopbm to gemtopnm.
+ * gemtopbm to gemtopnm.
*/
#include <assert.h>
@@ -50,106 +50,107 @@
char pattern[8];
static void getinit ARGS ((FILE *file, int *colsP, int *rowsP, int *padrightP,
- int *patlenP, int *planesP));
+ int *patlenP, int *planesP));
int
main(argc, argv)
- int argc;
- char *argv[];
+ int argc;
+ char *argv[];
{
- int debug = 0;
- FILE *f;
+ int debug = 0;
+ FILE *f;
int row;
- int rows, cols, padright, patlen, planes;
+ int rows, cols, padright, patlen, planes;
/* attributes of input image */
int type; /* The format type (PBM/PPM) of the output image */
- bit *bitrow[4];
+ bit *bitrow[4];
/* One row of input, one or four planes. (If one, only [0] is defined)*/
xel * xelrow; /* One row of output */
- const char * const usage = "[-debug] [gem IMG file]";
- int argn;
+ const char * const usage = "[-debug] [gem IMG file]";
+ int argn;
/* Process multiple planes by maintaining a separate row of bits for each
- * plane. In a single-plane image, all we have to do is write out the
+ * plane. In a single-plane image, all we have to do is write out the
* first plane; in a multiple-plane image, we combine them just before writing
* out the row.
*/
- pnm_init( &argc, argv );
-
+ pnm_init( &argc, argv );
+
argn = 1;
- while (argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0')
- {
- if (pm_keymatch(argv[1], "-debug", 2))
- debug = 1;
- else
- pm_usage (usage);
- ++argn;
- }
+ while (argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0')
+ {
+ if (pm_keymatch(argv[1], "-debug", 2))
+ debug = 1;
+ else
+ pm_usage (usage);
+ ++argn;
+ }
- if (argc == argn)
- f = stdin;
- else {
- f = pm_openr (argv[argn]);
- ++argn;
- }
+ if (argc == argn)
+ f = stdin;
+ else {
+ f = pm_openr (argv[argn]);
+ ++argn;
+ }
- if (argn != argc)
- pm_usage (usage);
+ if (argn != argc)
+ pm_usage (usage);
- getinit (f, &cols, &rows, &padright, &patlen, &planes);
+ getinit (f, &cols, &rows, &padright, &patlen, &planes);
- if (planes == 1)
+ if (planes == 1)
type = PBM_TYPE;
- else
+ else
type = PPM_TYPE;
- pnm_writepnminit( stdout, cols, rows, MAXVAL, type, 0 );
+ pnm_writepnminit( stdout, cols, rows, MAXVAL, type, 0 );
- {
+ overflow_add(cols, padright);
+ {
/* allocate input row data structure */
int plane;
- for (plane = 0; plane < planes; plane++)
+ for (plane = 0; plane < planes; plane++)
bitrow[plane] = malloc (cols + padright);
}
xelrow = pnm_allocrow(cols+padright); /* Output row */
- for (row = 0; row < rows; ) {
+ for (row = 0; row < rows; ) {
int linerep;
int plane;
- linerep = 1;
- for (plane = 0; plane < planes; plane++) {
+ linerep = 1;
+ for (plane = 0; plane < planes; plane++) {
int col;
- col = 0;
- while (col < cols) {
+ col = 0;
+ while (col < cols) {
int c;
- switch (c = getc(f)) {
- case 0x80: /* Bit String */
+ switch (c = getc(f)) {
+ case 0x80: /* Bit String */
{
int j;
- c = getc(f); /* Byte count */
- if (debug)
+ c = getc(f); /* Byte count */
+ if (debug)
pm_message("bit string of %d bytes", c);
-
- if (col + c * 8 > cols + padright)
- pm_error ("bad byte count");
- for (j = 0; j < c; ++j) {
+
+ if (col + c * 8 > cols + padright)
+ pm_error ("bad byte count");
+ for (j = 0; j < c; ++j) {
int cc, k;
- cc = getc(f);
- for (k = 0x80; k; k >>= 1) {
- bitrow[plane][col] = (k & cc) ? 0 : 1;
- ++col;
- }
- }
+ cc = getc(f);
+ for (k = 0x80; k; k >>= 1) {
+ bitrow[plane][col] = (k & cc) ? 0 : 1;
+ ++col;
+ }
+ }
}
break;
- case 0: /* Pattern run */
+ case 0: /* Pattern run */
{
int j, l;
- c = getc(f); /* Repeat count */
- if (debug)
- pm_message("pattern run of %d repetitions", c);
+ c = getc(f); /* Repeat count */
+ if (debug)
+ pm_message("pattern run of %d repetitions", c);
/* line repeat */
if (c == 0) {
c = getc(f);
@@ -158,25 +159,25 @@ main(argc, argv)
linerep = getc(f);
break;
}
- fread (pattern, 1, patlen, f);
- if (col + c * patlen * 8 > cols + padright)
- pm_error ("bad pattern repeat count");
- for (j = 0; j < c; ++j)
- for (l = 0; l < patlen; ++l) {
+ fread (pattern, 1, patlen, f);
+ if (col + c * patlen * 8 > cols + padright)
+ pm_error ("bad pattern repeat count");
+ for (j = 0; j < c; ++j)
+ for (l = 0; l < patlen; ++l) {
int k;
- for (k = 0x80; k; k >>= 1) {
- bitrow[plane][col] = (k & pattern[l]) ? 0 : 1;
- ++col;
- }
+ for (k = 0x80; k; k >>= 1) {
+ bitrow[plane][col] = (k & pattern[l]) ? 0 : 1;
+ ++col;
+ }
}
}
break;
- default: /* Solid run */
+ default: /* Solid run */
{
int l, j;
- if (debug)
- pm_message("solid run of %d bytes %s", c & 0x7f,
+ if (debug)
+ pm_message("solid run of %d bytes %s", c & 0x7f,
c & 0x80 ? "on" : "off" );
/* each byte had eight bits DSB */
l = (c & 0x80) ? 0: 1;
@@ -185,23 +186,23 @@ main(argc, argv)
pm_error ("bad solid run repeat count");
for (j = 0; j < c; ++j) {
bitrow[plane][col] = l;
- ++col;
+ ++col;
}
}
- break;
+ break;
- case EOF: /* End of file */
- pm_error( "end of file reached" );
+ case EOF: /* End of file */
+ pm_error( "end of file reached" );
- }
- }
+ }
+ }
if ( debug )
pm_message( "EOL plane %d row %d", plane, row );
if (col != cols + padright)
pm_error( "EOL beyond edge" );
- }
+ }
- if (planes == 4) {
+ if (planes == 4) {
/* Construct a pixel from the 4 planes of bits for this row */
int col;
for (col = 0; col < cols; col++) {
@@ -212,21 +213,21 @@ main(argc, argv)
const int b_bit = !bitrow[2][col];
i = bitrow[3][col];
- /* Deal with weird GEM palette - white/black/gray are
- encoded oddly
+ /* Deal with weird GEM palette - white/black/gray are
+ encoded oddly
*/
- if (r_bit == g_bit && g_bit == b_bit) {
+ if (r_bit == g_bit && g_bit == b_bit) {
/* It's black, white, or gray */
- if (r_bit && i) r = LIGHT;
- else if (r_bit) r = BLACK;
- else if (i) r = MAXVAL;
- else r = DARK;
- g = b = r;
- } else {
+ if (r_bit && i) r = LIGHT;
+ else if (r_bit) r = BLACK;
+ else if (i) r = MAXVAL;
+ else r = DARK;
+ g = b = r;
+ } else {
/* It's one of the twelve colored colors */
if (!i) {
/* Low intensity */
- r = r_bit * LIGHT;
+ r = r_bit * LIGHT;
g = g_bit * LIGHT;
b = b_bit * LIGHT;
} else {
@@ -237,21 +238,21 @@ main(argc, argv)
}
}
PPM_ASSIGN(xelrow[col], r, g, b);
- }
- } else {
+ }
+ } else {
int col;
- for (col = 0; col < cols; col++)
+ for (col = 0; col < cols; col++)
PNM_ASSIGN1(xelrow[col], bitrow[0][col]);
}
- while (linerep--) {
- pnm_writepnmrow( stdout, xelrow, cols, MAXVAL, type, 0 );
- ++row;
- }
- }
+ while (linerep--) {
+ pnm_writepnmrow( stdout, xelrow, cols, MAXVAL, type, 0 );
+ ++row;
+ }
+ }
pnm_freerow(xelrow);
- pm_close( f );
- pm_close( stdout );
- exit(0);
+ pm_close( f );
+ pm_close( stdout );
+ exit(0);
}
@@ -303,5 +304,3 @@ getinit (file, colsP, rowsP, padrightP, patlenP, planesP)
}
}
-
-
diff --git a/converter/other/jpegtopnm.c b/converter/other/jpegtopnm.c
index 98552c0..311298c 100644
--- a/converter/other/jpegtopnm.c
+++ b/converter/other/jpegtopnm.c
@@ -862,6 +862,8 @@ convertImage(FILE * const ofP,
/* Calculate output image dimensions so we can allocate space */
jpeg_calc_output_dimensions(cinfoP);
+ overflow2(cinfoP->output_width, cinfoP->output_components);
+
/* Start decompressor */
jpeg_start_decompress(cinfoP);
diff --git a/converter/other/pbmtopgm.c b/converter/other/pbmtopgm.c
index 69b20fb..382a487 100644
--- a/converter/other/pbmtopgm.c
+++ b/converter/other/pbmtopgm.c
@@ -47,6 +47,7 @@ main(int argc, char *argv[]) {
"than the image height (%u rows)", height, rows);
outrow = pgm_allocrow(cols) ;
+ overflow2(width, height);
maxval = MIN(PGM_OVERALLMAXVAL, width*height);
pgm_writepgminit(stdout, cols, rows, maxval, 0) ;
diff --git a/converter/other/pnmtoddif.c b/converter/other/pnmtoddif.c
index ac02e42..a2f045b 100644
--- a/converter/other/pnmtoddif.c
+++ b/converter/other/pnmtoddif.c
@@ -629,6 +629,7 @@ main(int argc, char *argv[]) {
switch (PNM_FORMAT_TYPE(format)) {
case PBM_TYPE:
ip.bits_per_pixel = 1;
+ overflow_add(cols, 7);
ip.bytes_per_line = (cols + 7) / 8;
ip.spectral = 2;
ip.components = 1;
@@ -644,6 +645,7 @@ main(int argc, char *argv[]) {
ip.polarity = 2;
break;
case PPM_TYPE:
+ overflow2(cols, 3);
ip.bytes_per_line = 3 * cols;
ip.bits_per_pixel = 24;
ip.spectral = 5;
diff --git a/converter/other/pnmtojpeg.c b/converter/other/pnmtojpeg.c
index 4482624..757d08d 100644
--- a/converter/other/pnmtojpeg.c
+++ b/converter/other/pnmtojpeg.c
@@ -606,7 +606,11 @@ read_scan_script(j_compress_ptr const cinfo,
want JPOOL_PERMANENT.
*/
const unsigned int scan_info_size = nscans * sizeof(jpeg_scan_info);
- jpeg_scan_info * const scan_info =
+ const jpeg_scan_info * scan_info;
+
+ overflow2(nscans, sizeof(jpeg_scan_info));
+
+ scan_info =
(jpeg_scan_info *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
scan_info_size);
@@ -938,6 +942,8 @@ compute_rescaling_array(JSAMPLE ** const rescale_p, const pixval maxval,
const long half_maxval = maxval / 2;
long val;
+ overflow_add(maxval, 1);
+ overflow2(maxval+1, sizeof(JSAMPLE));
*rescale_p = (JSAMPLE *)
(cinfo.mem->alloc_small) ((j_common_ptr) &cinfo, JPOOL_IMAGE,
(size_t) (((long) maxval + 1L) *
@@ -1016,6 +1022,7 @@ convert_scanlines(struct jpeg_compress_struct * const cinfo_p,
*/
/* Allocate the libpnm output and compressor input buffers */
+ overflow2(cinfo_p->image_width, cinfo_p->input_components);
buffer = (*cinfo_p->mem->alloc_sarray)
((j_common_ptr) cinfo_p, JPOOL_IMAGE,
(unsigned int) cinfo_p->image_width * cinfo_p->input_components,
diff --git a/converter/other/pnmtops.c b/converter/other/pnmtops.c
index de0dfd8..09c28d5 100644
--- a/converter/other/pnmtops.c
+++ b/converter/other/pnmtops.c
@@ -294,17 +294,21 @@ parseCommandLine(int argc, const char ** argv,
validateCompDimension(width, 72, "-width value");
validateCompDimension(height, 72, "-height value");
+ overflow2(width, 72);
cmdlineP->width = width * 72;
+ overflow2(height, 72);
cmdlineP->height = height * 72;
if (imagewidthSpec) {
validateCompDimension(imagewidth, 72, "-imagewidth value");
+ overflow2(imagewidth, 72);
cmdlineP->imagewidth = imagewidth * 72;
}
else
cmdlineP->imagewidth = 0;
if (imageheightSpec) {
- validateCompDimension(imagewidth, 72, "-imageheight value");
+ validateCompDimension(imageheight, 72, "-imageheight value");
+ overflow2(imageheight, 72);
cmdlineP->imageheight = imageheight * 72;
}
else
diff --git a/converter/other/rletopnm.c b/converter/other/rletopnm.c
index 97f271d..72b63d3 100644
--- a/converter/other/rletopnm.c
+++ b/converter/other/rletopnm.c
@@ -19,6 +19,8 @@
* If you modify this software, you should include a notice giving the
* name of the person performing the modification, the date of modification,
* and the reason for such modification.
+ *
+ * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
*/
/*
* rletopnm - A conversion program to convert from Utah's "rle" image format
diff --git a/converter/other/sirtopnm.c b/converter/other/sirtopnm.c
index fafcc91..9fe49d0 100644
--- a/converter/other/sirtopnm.c
+++ b/converter/other/sirtopnm.c
@@ -69,6 +69,7 @@ char* argv[];
}
break;
case PPM_TYPE:
+ overflow3(cols, rows, 3);
picsize = cols * rows * 3;
planesize = cols * rows;
if ( !( sirarray = (unsigned char*) malloc( picsize ) ) )
diff --git a/converter/other/tifftopnm.c b/converter/other/tifftopnm.c
index c1e7af8..ef9253b 100644
--- a/converter/other/tifftopnm.c
+++ b/converter/other/tifftopnm.c
@@ -1372,7 +1372,9 @@ convertRasterByRows(pnmOut * const pnmOutP,
if (scanbuf == NULL)
pm_error("can't allocate memory for scanline buffer");
- MALLOCARRAY(samplebuf, cols * spp);
+ /* samplebuf is unsigned int * !!! */
+ samplebuf = (unsigned int *) malloc3(cols , sizeof(unsigned int) , spp);
+
if (samplebuf == NULL)
pm_error("can't allocate memory for row buffer");
diff --git a/converter/other/xwdtopnm.c b/converter/other/xwdtopnm.c
index df3c737..6c19ade 100644
--- a/converter/other/xwdtopnm.c
+++ b/converter/other/xwdtopnm.c
@@ -210,6 +210,10 @@ processX10Header(X10WDFileHeader * const h10P,
*colorsP = pnm_allocrow(2);
PNM_ASSIGN1((*colorsP)[0], 0);
PNM_ASSIGN1((*colorsP)[1], *maxvalP);
+ overflow_add(h10P->pixmap_width, 15);
+ if(h10P->pixmap_width < 0)
+ pm_error("assert: negative width");
+ overflow2((((h10P->pixmap_width + 15) / 16) * 16 - h10P->pixmap_width), 8);
*padrightP =
(((h10P->pixmap_width + 15) / 16) * 16 - h10P->pixmap_width) * 8;
*bits_per_itemP = 16;
@@ -635,6 +639,7 @@ processX11Header(X11WDFileHeader * const h11P,
*colsP = h11FixedP->pixmap_width;
*rowsP = h11FixedP->pixmap_height;
+ overflow2(h11FixedP->bytes_per_line, 8);
*padrightP =
h11FixedP->bytes_per_line * 8 -
h11FixedP->pixmap_width * h11FixedP->bits_per_pixel;
diff --git a/converter/pbm/mdatopbm.c b/converter/pbm/mdatopbm.c
index d8e0657..12c7468 100644
--- a/converter/pbm/mdatopbm.c
+++ b/converter/pbm/mdatopbm.c
@@ -245,10 +245,13 @@ main(int argc, char **argv) {
pm_readlittleshort(infile, &yy); nInCols = yy;
}
+ overflow2(nOutCols, 8);
nOutCols = 8 * nInCols;
nOutRows = nInRows;
- if (bScale)
+ if (bScale) {
+ overflow2(nOutRows, 2);
nOutRows *= 2;
+ }
data = pbm_allocarray(nOutCols, nOutRows);
diff --git a/converter/pbm/mgrtopbm.c b/converter/pbm/mgrtopbm.c
index 9f7004a..60e8477 100644
--- a/converter/pbm/mgrtopbm.c
+++ b/converter/pbm/mgrtopbm.c
@@ -65,6 +65,8 @@ readMgrHeader(FILE * const ifP,
if (head.h_high < ' ' || head.l_high < ' ')
pm_error("Invalid width field in MGR header");
+ overflow_add(*colsP, pad);
+
*colsP = (((int)head.h_wide - ' ') << 6) + ((int)head.l_wide - ' ');
*rowsP = (((int)head.h_high - ' ') << 6) + ((int) head.l_high - ' ');
*padrightP = ( ( *colsP + pad - 1 ) / pad ) * pad - *colsP;
diff --git a/converter/pbm/pbmto4425.c b/converter/pbm/pbmto4425.c
index 1d97ac6..c4c8cbb 100644
--- a/converter/pbm/pbmto4425.c
+++ b/converter/pbm/pbmto4425.c
@@ -2,6 +2,7 @@
#include "nstring.h"
#include "pbm.h"
+#include <string.h>
static char bit_table[2][3] = {
{1, 4, 0x10},
@@ -160,7 +161,7 @@ main(int argc, char * argv[]) {
xres = vmap_width * 2;
yres = vmap_height * 3;
- vmap = malloc(vmap_width * vmap_height * sizeof(char));
+ vmap = malloc3(vmap_width, vmap_height, sizeof(char));
if(vmap == NULL)
{
pm_error( "Cannot allocate memory" );
diff --git a/converter/pbm/pbmtogem.c b/converter/pbm/pbmtogem.c
index 9eab041..13b0257 100644
--- a/converter/pbm/pbmtogem.c
+++ b/converter/pbm/pbmtogem.c
@@ -79,6 +79,7 @@ putinit (int const rows, int const cols)
bitsperitem = 0;
bitshift = 7;
outcol = 0;
+ overflow_add(cols, 7);
outmax = (cols + 7) / 8;
outrow = (unsigned char *) pm_allocrow (outmax, sizeof (unsigned char));
lastrow = (unsigned char *) pm_allocrow (outmax, sizeof (unsigned char));
diff --git a/converter/pbm/pbmtogo.c b/converter/pbm/pbmtogo.c
index 23b2ee9..d2ee91f 100644
--- a/converter/pbm/pbmtogo.c
+++ b/converter/pbm/pbmtogo.c
@@ -158,6 +158,7 @@ main(int argc,
bitrow = pbm_allocrow(cols);
/* Round cols up to the nearest multiple of 8. */
+ overflow_add(cols, 7);
rucols = ( cols + 7 ) / 8;
bytesperrow = rucols; /* GraphOn uses bytes */
rucols = rucols * 8;
diff --git a/converter/pbm/pbmtolj.c b/converter/pbm/pbmtolj.c
index 3cd7670..0b51932 100644
--- a/converter/pbm/pbmtolj.c
+++ b/converter/pbm/pbmtolj.c
@@ -120,7 +120,11 @@ parseCommandLine(int argc, char ** argv,
static void
allocateBuffers(unsigned int const cols) {
+ overflow_add(cols, 8);
rowBufferSize = (cols + 7) / 8;
+ overflow_add(rowBufferSize, 128);
+ overflow_add(rowBufferSize, rowBufferSize+128);
+ overflow_add(rowBufferSize+10, rowBufferSize/8);
packBufferSize = rowBufferSize + (rowBufferSize + 127) / 128 + 1;
deltaBufferSize = rowBufferSize + rowBufferSize / 8 + 10;
diff --git a/converter/pbm/pbmtomda.c b/converter/pbm/pbmtomda.c
index 3ad5149..9efe5cf 100644
--- a/converter/pbm/pbmtomda.c
+++ b/converter/pbm/pbmtomda.c
@@ -179,6 +179,7 @@ int main(int argc, char **argv)
nOutRowsUnrounded = bScale ? nInRows/2 : nInRows;
+ overflow_add(nOutRowsUnrounded, 3);
nOutRows = ((nOutRowsUnrounded + 3) / 4) * 4;
/* MDA wants rows a multiple of 4 */
nOutCols = nInCols / 8;
diff --git a/converter/pbm/pbmtoppa/pbm.c b/converter/pbm/pbmtoppa/pbm.c
index ae36e0d..1c8d236 100644
--- a/converter/pbm/pbmtoppa/pbm.c
+++ b/converter/pbm/pbmtoppa/pbm.c
@@ -11,185 +11,128 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <limits.h>
-#include "pm.h"
-#include "nstring.h"
#include "ppapbm.h"
-int
-make_pbm_stat(pbm_stat * const pbmStatP,
- FILE * const ifP) {
-
- char line[1024];
- char * rc;
- int retval;
-
- pbmStatP->fptr = ifP;
- pbmStatP->version = none;
- pbmStatP->current_line = 0;
- pbmStatP->unread = 0;
-
- rc = fgets(line, 1024, ifP);
- if (rc == NULL)
- retval = 0;
- else {
- line[strlen(line)-1] = 0;
-
- if (streq(line,"P1"))
- pbmStatP->version=P1;
- if (streq(line,"P4"))
- pbmStatP->version=P4;
-
- if (pbmStatP->version == none) {
- pm_message("unknown PBM magic '%s'", line);
- retval = 0;
- } else {
- do {
- char * rc;
- rc = fgets(line, 1024, ifP);
- if (rc == NULL)
- return 0;
- } while (line[0] == '#');
- {
- int rc;
- rc = sscanf(line, "%d %d",
- &pbmStatP->width, &pbmStatP->height);
- if (rc != 2)
- retval = 0;
- else {
- if (pbmStatP->width < 0) {
- pm_message("Image has negative width");
- retval = 0;
- } else if (pbmStatP->width > INT_MAX/2) {
- pm_message("Uncomputeably large width: %d",
- pbmStatP->width);
- retval = 0;
- } else if (pbmStatP->height < 0) {
- pm_message("Image has negative height");
- retval = 0;
- } else if (pbmStatP->height > INT_MAX/2) {
- pm_message("Uncomputeably large height: %d",
- pbmStatP->height);
- retval = 0;
- } else
- retval = 1;
- }
- }
- }
- }
- return retval;
-}
+int make_pbm_stat(pbm_stat* pbm,FILE* fptr)
+{
+ char line[1024];
+ pbm->fptr=fptr;
+ pbm->version=none;
+ pbm->current_line=0;
+ pbm->unread = 0;
+ if (fgets (line, 1024, fptr) == NULL)
+ return 0;
+ line[strlen(line)-1] = 0;
-static int
-getbytes(FILE * const ifP,
- unsigned int const width,
- unsigned char * const data) {
-
- unsigned char mask;
- unsigned char acc;
- unsigned char * place;
- unsigned int num;
- int retval;
-
- if (width == 0)
- retval = 0;
- else {
- for (mask = 0x80, acc = 0, num = 0, place = data; num < width; ) {
- switch (getc(ifP)) {
- case EOF:
- return 0;
- case '1':
- acc |= mask;
- /* fall through */
- case '0':
- mask >>= 1;
- ++num;
- if (mask == 0x00) { /* if (num % 8 == 0) */
- *place++ = acc;
- acc = 0;
- mask = 0x80;
- }
- }
- }
- if (width % 8 != 0)
- *place = acc;
-
- retval = 1;
- }
- return retval;
-}
+ if(!strcmp(line,"P1")) pbm->version=P1;
+ if(!strcmp(line,"P4")) pbm->version=P4;
+ if(pbm->version == none)
+ {
+ fprintf(stderr,"pbm_readheader(): unknown PBM magic '%s'\n",line);
+ return 0;
+ }
+ do
+ if (fgets (line, 1024, fptr) == NULL)
+ return 0;
+ while (line[0] == '#');
+ if (2 != sscanf (line, "%d %d", &pbm->width, &pbm->height))
+ return 0;
-int
-pbm_readline(pbm_stat * const pbmStatP,
- unsigned char * const data) {
-/*----------------------------------------------------------------------------
- Read a single line into data which must be at least (pbmStatP->width+7)/8
- bytes of storage.
------------------------------------------------------------------------------*/
- int retval;
-
- if (pbmStatP->current_line >= pbmStatP->height)
- retval = 0;
- else {
- if (pbmStatP->unread) {
- memcpy(data, pbmStatP->revdata, (pbmStatP->width+7)/8);
- ++pbmStatP->current_line;
- pbmStatP->unread = 0;
- free(pbmStatP->revdata);
- pbmStatP->revdata = NULL;
- retval = 1;
- } else {
- switch (pbmStatP->version) {
- case P1:
- if (getbytes(pbmStatP->fptr, pbmStatP->width, data)) {
- pbmStatP->current_line++;
- retval = 1;
- } else
- retval = 0;
- break;
- case P4: {
- int tmp, tmp2;
- tmp = (pbmStatP->width+7)/8;
- tmp2 = fread(data,1,tmp,pbmStatP->fptr);
- if (tmp2 == tmp) {
- ++pbmStatP->current_line;
- retval = 1;
- } else {
- pm_message("error reading line data (%d)", tmp2);
- retval = 0;
- }
- } break;
-
- default:
- pm_message("unknown PBM version");
- retval = 0;
- }
- }
- }
- return retval;
+ return 1;
}
+static int getbytes(FILE *fptr,int width,unsigned char* data)
+{
+ unsigned char mask,acc,*place;
+ int num;
+
+ if(!width) return 0;
+ for(mask=0x80, acc=0, num=0, place=data; num<width; )
+ {
+ switch(getc(fptr))
+ {
+ case EOF:
+ return 0;
+ case '1':
+ acc|=mask;
+ /* fall through */
+ case '0':
+ mask>>=1;
+ num++;
+ if(!mask) /* if(num%8 == 0) */
+ {
+ *place++ = acc;
+ acc=0;
+ mask=0x80;
+ }
+ }
+ }
+ if(width%8)
+ *place=acc;
+ return 1;
+}
+/* Reads a single line into data which must be at least (pbm->width+7)/8
+ bytes of storage */
+int pbm_readline(pbm_stat* pbm,unsigned char* data)
+{
+ int tmp,tmp2;
+
+ if(pbm->current_line >= pbm->height) return 0;
+
+ if (pbm->unread)
+ {
+ memcpy (data, pbm->revdata, (pbm->width+7)/8);
+ pbm->current_line++;
+ pbm->unread = 0;
+ free (pbm->revdata);
+ pbm->revdata = NULL;
+ return 1;
+ }
-void
-pbm_unreadline(pbm_stat * const pbmStatP,
- void * const data) {
-/*----------------------------------------------------------------------------
- Push a line back into the buffer; we read too much!
------------------------------------------------------------------------------*/
- /* can store only one line in the unread buffer */
-
- if (!pbmStatP->unread) {
- pbmStatP->unread = 1;
- pbmStatP->revdata = malloc ((pbmStatP->width+7)/8);
- memcpy(pbmStatP->revdata, data, (pbmStatP->width+7)/8);
- --pbmStatP->current_line;
+ switch(pbm->version)
+ {
+ case P1:
+ if(getbytes(pbm->fptr,pbm->width,data))
+ {
+ pbm->current_line++;
+ return 1;
}
-}
+ return 0;
+
+ case P4:
+ overflow_add(pbm->width, 7);
+ tmp=(pbm->width+7)/8;
+ tmp2=fread(data,1,tmp,pbm->fptr);
+ if(tmp2 == tmp)
+ {
+ pbm->current_line++;
+ return 1;
+ }
+ fprintf(stderr,"pbm_readline(): error reading line data (%d)\n",tmp2);
+ return 0;
+ default:
+ fprintf(stderr,"pbm_readline(): unknown PBM version\n");
+ return 0;
+ }
+}
+/* push a line back into the buffer; we read too much! */
+void pbm_unreadline (pbm_stat *pbm, void *data)
+{
+ /* can only store one line in the unread buffer */
+ if (pbm->unread)
+ return;
+
+ pbm->unread = 1;
+ overflow_add(pbm->width, 7);
+ pbm->revdata = malloc ((pbm->width+7)/8);
+ memcpy (pbm->revdata, data, (pbm->width+7)/8);
+ pbm->current_line--;
+}
diff --git a/converter/pbm/pbmtoppa/pbmtoppa.c b/converter/pbm/pbmtoppa/pbmtoppa.c
index ff4a599..aa510ec 100644
--- a/converter/pbm/pbmtoppa/pbmtoppa.c
+++ b/converter/pbm/pbmtoppa/pbmtoppa.c
@@ -453,6 +453,7 @@ main(int argc, char *argv[]) {
pm_error("main(): unrecognized parameter '%s'", argv[argn]);
}
+ overflow_add(Width, 7);
Pwidth=(Width+7)/8;
printer.fptr=out;
diff --git a/converter/pbm/pbmtoxbm.c b/converter/pbm/pbmtoxbm.c
index ecb72b3..fc0eb9c 100644
--- a/converter/pbm/pbmtoxbm.c
+++ b/converter/pbm/pbmtoxbm.c
@@ -352,6 +352,8 @@ convertRaster(FILE * const ifP,
unsigned char * bitrow;
unsigned int row;
+
+ overflow_add(cols, padright);
putinit(xbmVersion);
diff --git a/converter/pbm/pktopbm.c b/converter/pbm/pktopbm.c
index 712f339..b6fcb02 100644
--- a/converter/pbm/pktopbm.c
+++ b/converter/pbm/pktopbm.c
@@ -280,6 +280,7 @@ main(int argc, char *argv[]) {
if (flagbyte == 7) { /* long form preamble */
integer packetlength = get32() ; /* character packet length */
car = get32() ; /* character number */
+ overflow_add(packetlength, pktopbm_pkloc);
endofpacket = packetlength + pktopbm_pkloc;
/* calculate end of packet */
if ((car >= MAXPKCHAR) || !filename[car]) {
diff --git a/converter/pbm/thinkjettopbm.l b/converter/pbm/thinkjettopbm.l
index 5de4f2b..7f31de5 100644
--- a/converter/pbm/thinkjettopbm.l
+++ b/converter/pbm/thinkjettopbm.l
@@ -114,7 +114,9 @@ DIG [0-9]
<RASTERMODE>\033\*b{DIG}+W {
int l;
if (rowCount >= rowCapacity) {
- rowCapacity += 100;
+ overflow_add(rowCapacity, 100);
+ rowCapacity += 100;
+ overflow2(rowCapacity, sizeof *rows);
rows = realloc (rows, rowCapacity * sizeof *rows);
if (rows == NULL)
pm_error ("Out of memory.");
@@ -226,6 +228,8 @@ yywrap (void)
/*
* Quite simple since ThinkJet bit arrangement matches PBM
*/
+
+ overflow2(maxRowLength, 8);
pbm_writepbminit(stdout, maxRowLength*8, rowCount, 0);
packed_bitrow = malloc(maxRowLength);
diff --git a/converter/pbm/ybmtopbm.c b/converter/pbm/ybmtopbm.c
index 2a42908..cf1ff03 100644
--- a/converter/pbm/ybmtopbm.c
+++ b/converter/pbm/ybmtopbm.c
@@ -43,6 +43,7 @@ getinit(FILE * const ifP,
pm_error("EOF / read error");
*depthP = 1;
+ overflow_add(*colsP, 15);
}
diff --git a/converter/pgm/lispmtopgm.c b/converter/pgm/lispmtopgm.c
index 40dd3fb..b5469f7 100644
--- a/converter/pgm/lispmtopgm.c
+++ b/converter/pgm/lispmtopgm.c
@@ -58,6 +58,7 @@ main( argc, argv )
pm_error( "depth (%d bits) is too large", depth);
pgm_writepgminit( stdout, cols, rows, (gray) maxval, 0 );
+ overflow_add(cols, 7);
grayrow = pgm_allocrow( ( cols + 7 ) / 8 * 8 );
for ( row = 0; row < rows; ++row )
@@ -102,6 +103,8 @@ getinit( file, colsP, rowsP, depthP, padrightP )
if ( *depthP == 0 )
*depthP = 1; /* very old file */
+
+ overflow_add((int)colsP, 31);
*padrightP = ( ( *colsP + 31 ) / 32 ) * 32 - *colsP;
diff --git a/converter/pgm/psidtopgm.c b/converter/pgm/psidtopgm.c
index 07417d1..25bb311 100644
--- a/converter/pgm/psidtopgm.c
+++ b/converter/pgm/psidtopgm.c
@@ -78,6 +78,7 @@ main(int argc,
pm_error("bits/sample (%d) is too large.", bitspersample);
pgm_writepgminit(stdout, cols, rows, maxval, 0);
+ overflow_add(cols, 7);
grayrow = pgm_allocrow((cols + 7) / 8 * 8);
for (row = 0; row < rows; ++row) {
unsigned int col;
diff --git a/converter/ppm/Makefile b/converter/ppm/Makefile
index 003ef8d..b97349d 100644
--- a/converter/ppm/Makefile
+++ b/converter/ppm/Makefile
@@ -11,7 +11,7 @@ SUBDIRS = hpcdtoppm ppmtompeg
PORTBINARIES = 411toppm eyuvtoppm gouldtoppm ilbmtoppm imgtoppm \
leaftoppm mtvtoppm neotoppm \
- pcxtoppm pc1toppm pi1toppm picttoppm pjtoppm \
+ pcxtoppm pc1toppm pi1toppm pjtoppm \
ppmtoacad ppmtoapplevol ppmtoarbtxt ppmtoascii \
ppmtobmp ppmtoeyuv ppmtogif ppmtoicr ppmtoilbm \
ppmtoleaf ppmtolj ppmtomitsu ppmtoneo \
diff --git a/converter/ppm/ilbmtoppm.c b/converter/ppm/ilbmtoppm.c
index 92d4d6f..60853dd 100644
--- a/converter/ppm/ilbmtoppm.c
+++ b/converter/ppm/ilbmtoppm.c
@@ -608,6 +608,7 @@ decode_row(FILE * const ifP,
rawtype *chp;
cols = bmhdP->w;
+ overflow_add(cols, 15);
bytes = RowBytes(cols);
for( plane = 0; plane < nPlanes; plane++ ) {
int mask;
@@ -695,6 +696,23 @@ decode_mask(FILE * const ifP,
Multipalette handling
****************************************************************************/
+static void *
+xmalloc2(x, y)
+ int x;
+ int y;
+{
+ void *mem;
+
+ overflow2(x,y);
+ if( x * y == 0 )
+ return NULL;
+
+ mem = malloc2(x,y);
+ if( mem == NULL )
+ pm_error("out of memory allocating %d bytes", x * y);
+ return mem;
+}
+
static void
multi_adjust(ColorMap * const cmapP,
@@ -1363,6 +1381,9 @@ dcol_to_ppm(FILE * const ifP,
if( redmaxval != maxval || greenmaxval != maxval || bluemaxval != maxval )
pm_message("scaling colors to %d bits", pm_maxvaltobits(maxval));
+ overflow_add(redmaxval, 1);
+ overflow_add(greenmaxval, 1);
+ overflow_add(bluemaxval, 1);
MALLOCARRAY_NOFAIL(redtable, redmaxval +1);
MALLOCARRAY_NOFAIL(greentable, greenmaxval +1);
MALLOCARRAY_NOFAIL(bluetable, bluemaxval +1);
@@ -1802,7 +1823,9 @@ PCHG_ConvertSmall(PCHGHeader * const pchgP,
ChangeCount32 = *data++;
remDataSize -= 2;
+ overflow_add(ChangeCount16, ChangeCount32);
changes = ChangeCount16 + ChangeCount32;
+ overflow_add(changes, 1);
for (i = 0; i < changes; ++i) {
if (totalchanges >= pchgP->TotalChanges) goto fail;
if (remDataSize < 2) goto fail;
@@ -2067,6 +2090,9 @@ read_pchg(FILE * const ifP,
cmap->mp_change[i] = NULL;
if( PCHG.StartLine < 0 ) {
int nch;
+ if(PCHG.MaxReg < PCHG.MinReg)
+ pm_error("assert: MinReg > MaxReg");
+ overflow_add(PCHG.MaxReg-PCHG.MinReg, 2);
nch = PCHG.MaxReg - PCHG.MinReg +1;
MALLOCARRAY_NOFAIL(cmap->mp_init, nch + 1);
for( i = 0; i < nch; i++ )
@@ -2143,6 +2169,7 @@ process_body( FILE * const ifP,
if (typeid == ID_ILBM) {
int isdeep;
+ overflow_add(bmhdP->w, 15);
MALLOCARRAY_NOFAIL(ilbmrow, RowBytes(bmhdP->w));
*viewportmodesP |= fakeviewport; /* -isham/-isehb */
diff --git a/converter/ppm/ilbmtoppm.c.rej b/converter/ppm/ilbmtoppm.c.rej
new file mode 100644
index 0000000..972cad0
--- /dev/null
+++ b/converter/ppm/ilbmtoppm.c.rej
@@ -0,0 +1,46 @@
+--- converter/ppm/ilbmtoppm.c
++++ converter/ppm/ilbmtoppm.c
+@@ -694,6 +695,23 @@ decode_mask(FILE * const ifP,
+ Multipalette handling
+ ****************************************************************************/
+
++static void *
++xmalloc2(x, y)
++ int x;
++ int y;
++{
++ void *mem;
++
++ overflow2(x,y);
++ if( x * y == 0 )
++ return NULL;
++
++ mem = malloc2(x,y);
++ if( mem == NULL )
++ pm_error("out of memory allocating %d bytes", x * y);
++ return mem;
++}
++
+
+ static void
+ multi_adjust(cmap, row, palchange)
+@@ -1356,6 +1374,9 @@ dcol_to_ppm(FILE * const ifP,
+ if( redmaxval != maxval || greenmaxval != maxval || bluemaxval != maxval )
+ pm_message("scaling colors to %d bits", pm_maxvaltobits(maxval));
+
++ overflow_add(redmaxval, 1);
++ overflow_add(greenmaxval, 1);
++ overflow_add(bluemaxval, 1);
+ MALLOCARRAY_NOFAIL(redtable, redmaxval +1);
+ MALLOCARRAY_NOFAIL(greentable, greenmaxval +1);
+ MALLOCARRAY_NOFAIL(bluetable, bluemaxval +1);
+@@ -1785,7 +1806,9 @@ PCHG_ConvertSmall(PCHG, cmap, mask, datasize)
+ ChangeCount32 = *data++;
+ datasize -= 2;
+
++ overflow_add(ChangeCount16, ChangeCount32);
+ changes = ChangeCount16 + ChangeCount32;
++ overflow_add(changes, 1);
+ for( i = 0; i < changes; i++ ) {
+ if( totalchanges >= PCHG->TotalChanges ) goto fail;
+ if( datasize < 2 ) goto fail;
diff --git a/converter/ppm/imgtoppm.c b/converter/ppm/imgtoppm.c
index 7078b88..eb8509e 100644
--- a/converter/ppm/imgtoppm.c
+++ b/converter/ppm/imgtoppm.c
@@ -84,6 +84,7 @@ main(int argc, char ** argv) {
len = atoi((char*) buf );
if ( fread( buf, len, 1, ifp ) != 1 )
pm_error( "bad colormap buf" );
+ overflow2(cmaplen, 3);
if ( cmaplen * 3 != len )
{
pm_message(
@@ -105,6 +106,7 @@ main(int argc, char ** argv) {
pm_error( "bad pixel data header" );
buf[8] = '\0';
len = atoi((char*) buf );
+ overflow2(cols, rows);
if ( len != cols * rows )
pm_message(
"pixel data length (%d) does not match image size (%d)",
diff --git a/converter/ppm/pcxtoppm.c b/converter/ppm/pcxtoppm.c
index e252ba2..270ae3b 100644
--- a/converter/ppm/pcxtoppm.c
+++ b/converter/ppm/pcxtoppm.c
@@ -409,6 +409,7 @@ pcx_planes_to_pixels(pixels, bitplanes, bytesperline, planes, bitsperpixel)
/*
* clear the pixel buffer
*/
+ overflow2(bytesperline, 8);
npixels = (bytesperline * 8) / bitsperpixel;
p = pixels;
while (--npixels >= 0)
@@ -470,6 +471,7 @@ pcx_16col_to_ppm(FILE * const ifP,
}
/* BytesPerLine should be >= BitsPerPixel * cols / 8 */
+ overflow2(BytesPerLine, 8);
rawcols = BytesPerLine * 8 / BitsPerPixel;
if (headerCols > rawcols) {
pm_message("warning - BytesPerLine = %d, "
diff --git a/converter/ppm/picttoppm.c b/converter/ppm/picttoppm.c
index b8fb864..177bc30 100644
--- a/converter/ppm/picttoppm.c
+++ b/converter/ppm/picttoppm.c
@@ -1,3 +1,4 @@
+#error "Unfixable. Don't ship me"
/*
* picttoppm.c -- convert a MacIntosh PICT file to PPM format.
*
diff --git a/converter/ppm/pjtoppm.c b/converter/ppm/pjtoppm.c
index b8b94f7..62ce77e 100644
--- a/converter/ppm/pjtoppm.c
+++ b/converter/ppm/pjtoppm.c
@@ -11,87 +11,65 @@
*/
#include "ppm.h"
-#include "pm_c_util.h"
#include "mallocvar.h"
static char usage[] = "[paintjetfile]";
-
-
-static unsigned int
-uintProduct(unsigned int const multiplicand,
- unsigned int const multiplier) {
-
- if (UINT_MAX / multiplier < multiplicand)
- pm_error("Airthmetic overflow");
-
- return multiplicand * multiplier;
-}
-
-
-
+static int egetc ARGS((FILE *fp));
static int
-egetc(FILE * const ifP) {
+egetc(fp)
+ FILE *fp;
+{
int c;
-
- c = fgetc(ifP);
-
- if (c == -1)
+ if ((c = fgetc(fp)) == -1)
pm_error("unexpected end of file");
-
- return c;
+ return(c);
}
-
-
int
-main(int argc, const char ** argv) {
-
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
int cmd, val;
char buffer[BUFSIZ];
int planes = 3, rows = -1, cols = -1;
+ int r = 0, c = 0, p = 0, i;
unsigned char **image = NULL;
int *imlen;
- FILE * ifP;
+ FILE *fp = stdin;
int mode;
int argn;
unsigned char bf[3];
- pixel * pixrow;
- int c;
- int row;
- int plane;
+ pixel *pixrow;
- pm_proginit(&argc, argv);
+ ppm_init(&argc, argv);
argn = 1;
if (argn != argc)
- ifP = pm_openr(argv[argn++]);
+ fp = pm_openr(argv[argn++]);
else
- ifP = stdin;
+ fp = stdin;
if (argn != argc)
pm_usage(usage);
- row = 0; /* initial value */
- plane = 0; /* initial value */
-
- while ((c = fgetc(ifP)) != -1) {
+ while ((c = fgetc(fp)) != -1) {
if (c != '\033')
continue;
- switch (c = egetc(ifP)) {
+ switch (c = egetc(fp)) {
case 'E': /* reset */
break;
- case '*': {
- unsigned int i;
- cmd = egetc(ifP);
+ case '*':
+ cmd = egetc(fp);
for (i = 0; i < BUFSIZ; i++) {
- if (!isdigit(c = egetc(ifP)) && c != '+' && c != '-')
+ if (!isdigit(c = egetc(fp)) && c != '+' && c != '-')
break;
buffer[i] = c;
}
if (i != 0) {
buffer[i] = '\0';
- if (sscanf(buffer, "%d", &val) != 1)
+ if (sscanf(buffer, "%d", &val) != 1)
pm_error("bad value `%s' at <ESC>*%c%c", buffer, cmd, c);
}
else
@@ -122,7 +100,7 @@ main(int argc, const char ** argv) {
break;
case 'U': /* planes */
planes = val;
- if (planes != 3)
+ if (planes != 3)
pm_error("can handle only 3 plane files");
break;
case 'A': /* begin raster */
@@ -148,33 +126,40 @@ main(int argc, const char ** argv) {
break;
case 'V': /* send plane */
case 'W': /* send last plane */
- if (rows == -1 || row >= rows || image == NULL) {
- if (rows == -1 || row >= rows)
+ if (rows == -1 || r >= rows || image == NULL) {
+ if (rows == -1 || r >= rows) {
+ overflow_add(rows, 100);
rows += 100;
+ }
+
if (image == NULL) {
- MALLOCARRAY(image, uintProduct(rows, planes));
- MALLOCARRAY(imlen, uintProduct(rows, planes));
- } else {
- REALLOCARRAY(image, uintProduct(rows, planes));
- REALLOCARRAY(imlen, uintProduct(rows, planes));
+ image = (unsigned char **)
+ malloc3(rows , planes , sizeof(unsigned char *));
+ imlen = (int *) malloc3(rows , planes, sizeof(int));
}
+ else {
+ overflow2(rows,planes);
+ image = (unsigned char **)
+ realloc2(image, rows * planes,
+ sizeof(unsigned char *));
+ imlen = (int *) realloc2(imlen, rows * planes, sizeof(int)); }
}
if (image == NULL || imlen == NULL)
pm_error("out of memory");
- if (plane >= planes)
+ if (p == planes)
pm_error("too many planes");
- cols = MAX(cols, val);
- imlen[row * planes + plane] = val;
- MALLOCARRAY(image[row * planes + plane], val);
- if (image[row * planes + plane] == NULL)
+ cols = cols > val ? cols : val;
+ imlen[r * planes + p] = val;
+ MALLOCARRAY(image[r * planes + p], val);
+ if (image[r * planes + p] == NULL)
pm_error("out of memory");
- if (fread(image[row * planes + plane], 1, val, ifP) != val)
+ if (fread(image[r * planes + p], 1, val, fp) != val)
pm_error("short data");
if (c == 'V')
- ++plane;
+ p++;
else {
- plane = 0;
- ++row;
+ p = 0;
+ r++;
}
break;
default:
@@ -183,7 +168,7 @@ main(int argc, const char ** argv) {
}
break;
case 'p': /* Position */
- if (plane != 0)
+ if (p != 0)
pm_error("changed position in the middle of "
"transferring planes");
switch (c) {
@@ -192,15 +177,15 @@ main(int argc, const char ** argv) {
break;
case 'Y':
if (buffer[0] == '+')
- val = row + val;
+ val = r + val;
if (buffer[0] == '-')
- val = row - val;
- for (; val > row; ++row)
- for (plane = 0; plane < 3; ++plane) {
- imlen[row * planes + plane] = 0;
- image[row * planes + plane] = NULL;
+ val = r - val;
+ for (; val > r; r++)
+ for (p = 0; p < 3; p++) {
+ imlen[r * planes + p] = 0;
+ image[r * planes + p] = NULL;
}
- row = val;
+ r = val;
break;
default:
pm_message("uninmplemented <ESC>*%c%d%c", cmd, val, c);
@@ -209,80 +194,65 @@ main(int argc, const char ** argv) {
default:
pm_message("uninmplemented <ESC>*%c%d%c", cmd, val, c);
break;
- }
- } /* case */
- } /* switch */
+ }
+ }
}
- pm_close(ifP);
- rows = row;
+ pm_close(fp);
+ rows = r;
if (mode == 1) {
- int const newcols = 10240; /* It could not be larger that that! */
- unsigned char * buf;
- unsigned int row;
-
- for (row = 0, cols = 0; row < rows; ++row) {
- unsigned int plane;
- if (image[row * planes] == NULL)
+ unsigned char *buf;
+ int newcols = 0;
+ newcols = 10240; /* It could not be larger that that! */
+ cols = 0;
+ for (r = 0; r < rows; r++) {
+ if (image[r * planes] == NULL)
continue;
- for (plane = 0; plane < planes; ++plane) {
- unsigned int i;
- unsigned int col;
+ for (p = 0; p < planes; p++) {
MALLOCARRAY(buf, newcols);
- if (buf == NULL)
+ if (buf == NULL)
pm_error("out of memory");
- for (i = 0, col = 0;
- col < imlen[plane + row * planes];
- col += 2)
- for (cmd = image[plane + row * planes][col],
- val = image[plane + row * planes][col+1];
- cmd >= 0 && i < newcols; cmd--, i++)
+ for (i = 0, c = 0; c < imlen[p + r * planes]; c += 2)
+ for (cmd = image[p + r * planes][c],
+ val = image[p + r * planes][c+1];
+ cmd >= 0 && i < newcols; cmd--, i++) {
buf[i] = val;
- cols = MAX(cols, i);
- free(image[plane + row * planes]);
- /*
- * This is less than what we have so it realloc should
+ overflow_add(i, 1);
+ }
+ cols = cols > i ? cols : i;
+ free(image[p + r * planes]);
+ /*
+ * This is less than what we have so it realloc should
* not return null. Even if it does, tough! We will
* lose a line, and probably die on the next line anyway
*/
- image[plane + row * planes] = realloc(buf, i);
+ image[p + r * planes] = (unsigned char *) realloc(buf, i);
}
}
+ overflow2(cols, 8);
cols *= 8;
}
-
+
+
ppm_writeppminit(stdout, cols, rows, (pixval) 255, 0);
pixrow = ppm_allocrow(cols);
-
- for (row = 0; row < rows; ++row) {
- if (image[row * planes] == NULL) {
- unsigned int col;
- for (col = 0; col < cols; ++col)
- PPM_ASSIGN(pixrow[col], 0, 0, 0);
+ for (r = 0; r < rows; r++) {
+ if (image[r * planes] == NULL) {
+ for (c = 0; c < cols; c++)
+ PPM_ASSIGN(pixrow[c], 0, 0, 0);
continue;
}
- {
- unsigned int col;
- unsigned int cmd;
- for (cmd = 0, col = 0; col < cols; col += 8, ++cmd) {
- unsigned int i;
- for (i = 0; i < 8 && col + i < cols; ++i) {
- unsigned int plane;
- for (plane = 0; plane < planes; ++plane)
- if (mode == 0 && cmd >= imlen[row * planes + plane])
- bf[plane] = 0;
- else
- bf[plane] = (image[row * planes + plane][cmd] &
- (1 << (7 - i))) ? 255 : 0;
- PPM_ASSIGN(pixrow[col + i], bf[0], bf[1], bf[2]);
- }
+ for (cmd = 0, c = 0; c < cols; c += 8, cmd++)
+ for (i = 0; i < 8 && c + i < cols; i++) {
+ for (p = 0; p < planes; p++)
+ if (mode == 0 && cmd >= imlen[r * planes + p])
+ bf[p] = 0;
+ else
+ bf[p] = (image[r * planes + p][cmd] &
+ (1 << (7 - i))) ? 255 : 0;
+ PPM_ASSIGN(pixrow[c + i], bf[0], bf[1], bf[2]);
}
- }
- ppm_writeppmrow(stdout, pixrow, cols, 255, 0);
+ ppm_writeppmrow(stdout, pixrow, cols, (pixval) 255, 0);
}
pm_close(stdout);
-
- return 0;
+ exit(0);
}
-
-
-
diff --git a/converter/ppm/ppmtoeyuv.c b/converter/ppm/ppmtoeyuv.c
index f5ce115..6f072be 100644
--- a/converter/ppm/ppmtoeyuv.c
+++ b/converter/ppm/ppmtoeyuv.c
@@ -114,6 +114,7 @@ create_multiplication_tables(const pixval maxval) {
int index;
+ overflow_add(maxval, 1);
MALLOCARRAY_NOFAIL(mult299 , maxval+1);
MALLOCARRAY_NOFAIL(mult587 , maxval+1);
MALLOCARRAY_NOFAIL(mult114 , maxval+1);
diff --git a/converter/ppm/ppmtolj.c b/converter/ppm/ppmtolj.c
index 7ed814e..b4e7db1 100644
--- a/converter/ppm/ppmtolj.c
+++ b/converter/ppm/ppmtolj.c
@@ -182,6 +182,7 @@ int main(int argc, char *argv[]) {
ppm_readppminit( ifp, &cols, &rows, &maxval, &format );
pixelrow = ppm_allocrow( cols );
+ overflow2(cols, 6);
obuf = (unsigned char *) pm_allocrow(cols * 3, sizeof(unsigned char));
cbuf = (unsigned char *) pm_allocrow(cols * 6, sizeof(unsigned char));
if (mode == C_TRANS_MODE_DELTA)
diff --git a/converter/ppm/ppmtomitsu.c b/converter/ppm/ppmtomitsu.c
index 5b0b324..11db755 100644
--- a/converter/ppm/ppmtomitsu.c
+++ b/converter/ppm/ppmtomitsu.c
@@ -685,6 +685,8 @@ main(int argc, char * argv[]) {
medias = MSize_User;
if (dpi300) {
+ overflow2(medias.maxcols, 2);
+ overflow2(medias.maxrows, 2);
medias.maxcols *= 2;
medias.maxrows *= 2;
}
diff --git a/converter/ppm/ppmtopcx.c b/converter/ppm/ppmtopcx.c
index fa68edc..97dfb2b 100644
--- a/converter/ppm/ppmtopcx.c
+++ b/converter/ppm/ppmtopcx.c
@@ -425,6 +425,8 @@ ppmTo16ColorPcx(pixel ** const pixels,
else Planes = 1;
}
}
+ overflow2(BitsPerPixel, cols);
+ overflow_add(BitsPerPixel * cols, 7);
BytesPerLine = ((cols * BitsPerPixel) + 7) / 8;
MALLOCARRAY_NOFAIL(indexRow, cols);
MALLOCARRAY_NOFAIL(planesrow, BytesPerLine);
diff --git a/converter/ppm/ppmtopict.c b/converter/ppm/ppmtopict.c
index 36464b6..c91ccf2 100644
--- a/converter/ppm/ppmtopict.c
+++ b/converter/ppm/ppmtopict.c
@@ -450,6 +450,8 @@ main(int argc, const char ** argv) {
putShort(stdout, 0); /* mode */
/* Finally, write out the data. */
+ overflow_add(cols/MAX_COUNT, 1);
+ overflow_add(cols, cols/MAX_COUNT+1);
outBuf = malloc((unsigned)(cols+cols/MAX_COUNT+1));
for (row = 0, oc = 0; row < rows; ++row) {
unsigned int rowSize;
diff --git a/converter/ppm/ppmtopj.c b/converter/ppm/ppmtopj.c
index d116773..fc84cac 100644
--- a/converter/ppm/ppmtopj.c
+++ b/converter/ppm/ppmtopj.c
@@ -179,6 +179,7 @@ char *argv[];
pixels = ppm_readppm( ifp, &cols, &rows, &maxval );
pm_close( ifp );
+ overflow2(cols,2);
obuf = (unsigned char *) pm_allocrow(cols, sizeof(unsigned char));
cbuf = (unsigned char *) pm_allocrow(cols * 2, sizeof(unsigned char));
diff --git a/converter/ppm/ppmtopjxl.c b/converter/ppm/ppmtopjxl.c
index 90bcef0..72d0027 100644
--- a/converter/ppm/ppmtopjxl.c
+++ b/converter/ppm/ppmtopjxl.c
@@ -267,6 +267,9 @@ main(int argc, const char * argv[]) {
if (maxval > PCL_MAXVAL)
pm_error("color range too large; reduce with ppmcscale");
+ if (cols < 0 || rows < 0)
+ pm_error("negative size is not possible");
+
/* Figure out the colormap. */
pm_message("Computing colormap...");
chv = ppm_computecolorhist(pixels, cols, rows, MAXCOLORS, &colors);
@@ -286,6 +289,8 @@ main(int argc, const char * argv[]) {
case 0: /* direct mode (no palette) */
bpp = bitsperpixel(maxval); /* bits per pixel */
bpg = bpp; bpb = bpp;
+ overflow2(bpp, 3);
+ overflow_add(bpp*3, 7);
bpp = (bpp*3+7)>>3; /* bytes per pixel now */
bpr = (bpp<<3)-bpg-bpb;
bpp *= cols; /* bytes per row now */
@@ -295,9 +300,13 @@ main(int argc, const char * argv[]) {
case 3: case 7: pclindex++;
default:
bpp = 8/pclindex;
+ overflow_add(cols, bpp);
+ if(bpp == 0)
+ pm_error("assert: no bpp");
bpp = (cols+bpp-1)/bpp; /* bytes per row */
}
}
+ overflow2(bpp,2);
inrow = (char *)malloc((unsigned)bpp);
outrow = (char *)malloc((unsigned)bpp*2);
runcnt = (signed char *)malloc((unsigned)bpp);
diff --git a/converter/ppm/ppmtowinicon.c b/converter/ppm/ppmtowinicon.c
index c673798..af2b445 100644
--- a/converter/ppm/ppmtowinicon.c
+++ b/converter/ppm/ppmtowinicon.c
@@ -12,6 +12,7 @@
#include <math.h>
#include <string.h>
+#include <stdlib.h>
#include "pm_c_util.h"
#include "winico.h"
@@ -214,6 +215,7 @@ createAndBitmap (gray ** const ba, int const cols, int const rows,
MALLOCARRAY_NOFAIL(rowData, rows);
icBitmap->xBytes = xBytes;
icBitmap->data = rowData;
+ overflow2(xBytes, rows);
icBitmap->size = xBytes * rows;
for (y=0;y<rows;y++) {
u1 * row;
@@ -342,6 +344,7 @@ create4Bitmap (pixel ** const pa, int const cols, int const rows,
MALLOCARRAY_NOFAIL(rowData, rows);
icBitmap->xBytes = xBytes;
icBitmap->data = rowData;
+ overflow2(xBytes, rows);
icBitmap->size = xBytes * rows;
for (y=0;y<rows;y++) {
@@ -402,6 +405,7 @@ create8Bitmap (pixel ** const pa, int const cols, int const rows,
MALLOCARRAY_NOFAIL(rowData, rows);
icBitmap->xBytes = xBytes;
icBitmap->data = rowData;
+ overflow2(xBytes, rows);
icBitmap->size = xBytes * rows;
for (y=0;y<rows;y++) {
@@ -709,7 +713,11 @@ addEntryToIcon(MS_Ico const MSIconData,
entry->bitcount = bpp;
entry->ih = createInfoHeader(entry, xorBitmap, andBitmap);
entry->colors = palette->colors;
- entry->size_in_bytes =
+ overflow2(4, entry->color_count);
+ overflow_add(xorBitmap->size, andBitmap->size);
+ overflow_add(xorBitmap->size + andBitmap->size, 40);
+ overflow_add(xorBitmap->size + andBitmap->size + 40, 4 * entry->color_count);
+ entry->size_in_bytes =
xorBitmap->size + andBitmap->size + 40 + (4 * entry->color_count);
if (verbose)
pm_message("entry->size_in_bytes = %d + %d + %d = %d",
diff --git a/converter/ppm/ppmtoxpm.c b/converter/ppm/ppmtoxpm.c
index 0e31692..1b3923f 100644
--- a/converter/ppm/ppmtoxpm.c
+++ b/converter/ppm/ppmtoxpm.c
@@ -198,6 +198,7 @@ genNumstr(unsigned int const input, int const digits) {
unsigned int i;
/* Allocate memory for printed number. Abort if error. */
+ overflow_add(digits, 1);
if (!(str = (char *) malloc(digits + 1)))
pm_error("out of memory");
@@ -315,6 +316,7 @@ genCmap(colorhist_vector const chv,
unsigned int charsPerPixel;
unsigned int xpmMaxval;
+ if (includeTransparent) overflow_add(ncolors, 1);
MALLOCARRAY(cmap, cmapSize);
if (cmapP == NULL)
pm_error("Out of memory allocating %u bytes for a color map.",
diff --git a/converter/ppm/qrttoppm.c b/converter/ppm/qrttoppm.c
index 935463e..653084c 100644
--- a/converter/ppm/qrttoppm.c
+++ b/converter/ppm/qrttoppm.c
@@ -46,7 +46,7 @@ main( argc, argv )
ppm_writeppminit( stdout, cols, rows, maxval, 0 );
pixelrow = ppm_allocrow( cols );
- buf = (unsigned char *) malloc( 3 * cols );
+ buf = (unsigned char *) malloc2( 3 , cols );
if ( buf == (unsigned char *) 0 )
pm_error( "out of memory" );
diff --git a/converter/ppm/sldtoppm.c b/converter/ppm/sldtoppm.c
index 2dc049f..2a482be 100644
--- a/converter/ppm/sldtoppm.c
+++ b/converter/ppm/sldtoppm.c
@@ -154,127 +154,85 @@ vscale(int * const px,
-static void
-upcase(const char * const sname,
- char * const uname) {
-
- unsigned int i;
- const char * ip;
-
- for (i = 0, ip = sname; i < 31; ++i) {
- char const ch = *ip++;
-
- if (ch != EOS)
- uname[i] = islower(ch) ? toupper(ch) : ch;
- }
- uname[i] = EOS;
-}
-
-
-
-static void
-skipBytes(FILE * const fileP,
- unsigned int const count) {
-
- unsigned int i;
-
- for (i = 0; i < count; ++i)
- getc(fileP);
-}
-
-
-
-static void
-scanDirectory(FILE * const slFileP,
- long const dirPos,
- bool const dirOnly,
- const char * const uname,
- bool * const foundP) {
-/*----------------------------------------------------------------------------
- Scan the directory at the current position in *slFileP, either listing
- the directory ('dirOnly' true) or searching for a slide named
- 'uname' ('dirOnly' false).
-
- 'dirPos' is the offset in the file of the directory, i.e. the current
- position of *slFileP.
-
- In the latter case, return as *foundP whether the slide name is there.
------------------------------------------------------------------------------*/
- bool found;
- bool eof;
- long pos;
- unsigned char libent[36];
-
- for (found = false, eof = false, pos = dirPos; !found && !eof; ) {
- size_t readCt;
- readCt = fread(libent, 36, 1, slFileP);
- if (readCt != 1)
- eof = true;
- else {
- /* The directory entry is 32 bytes of NUL-terminated slide name
- followed by 4 bytes of offset of the next directory entry.
- */
- const char * const slideName = (const char *)(&libent[0]);
- if (pm_strnlen(slideName, 32) == 32)
- pm_error("Invalid input: slide name field is not "
- "nul-terminated");
- else {
- if (strlen(slideName) == 0)
- eof = true;
- else {
- pos += 36;
- if (dirOnly) {
- pm_message(" %s", slideName);
- } else if (streq(slideName, uname)) {
- long const dpos =
- (((((libent[35] << 8) | libent[34]) << 8) |
- libent[33]) << 8) | libent[32];
-
- if ((slFileP == stdin) ||
- (fseek(slFileP, dpos, 0) == -1)) {
-
- skipBytes(slFileP, dpos - pos);
- }
- found = true;
- }
- }
- }
- }
- }
- *foundP = found;
-}
-
/* SLIDEFIND -- Find a slide in a library or, if DIRONLY is
nonzero, print a directory listing of the library.
If UCASEN is nonzero, the requested slide name is
converted to upper case. */
static void
-slidefind(const char * const slideName,
- bool const dirOnly,
+slidefind(const char * const sname,
+ bool const dironly,
bool const ucasen) {
- char uname[32]; /* upper case translation of 'slideName' */
- char header[32]; /* (supposed) header read from file */
+ char uname[32];
+ unsigned char libent[36];
+ long pos;
bool found;
+ bool eof;
- if (dirOnly)
+ if (dironly)
pm_message("Slides in library:");
else {
- upcase(slideName, uname);
+ unsigned int i;
+ const char * ip;
+
+ ip = sname; /* initial value */
+
+ for (i = 0; i < 31; ++i) {
+ char const ch = *ip++;
+ if (ch == EOS)
+ break;
+
+ {
+ char const upperCh =
+ ucasen && islower(ch) ? toupper(ch) : ch;
+
+ uname[i] = upperCh;
+ }
+ }
+ uname[i] = EOS;
}
/* Read slide library header and verify. */
-
- if ((fread(header, 32, 1, slfile) != 1) ||
- (!STRSEQ(header, "AutoCAD Slide Library 1.0\r\n\32"))) {
+
+ if ((fread(libent, 32, 1, slfile) != 1) ||
+ (!streq((char *)libent, "AutoCAD Slide Library 1.0\015\012\32"))) {
pm_error("not an AutoCAD slide library file.");
}
+ pos = 32;
+
+ /* Search for a slide with the requested name or list the directory */
+
+ for (found = false, eof = false; !found && !eof; ) {
+ size_t readCt;
+ readCt = fread(libent, 36, 1, slfile);
+ if (readCt != 1)
+ eof = true;
+ else if (strlen((char *)libent) == 0)
+ eof = true;
+ }
+ if (!eof) {
+ pos += 36;
+ if (dironly) {
+ pm_message(" %s", libent);
+ } else if (streq((char *)libent, uname)) {
+ long dpos;
+
+ dpos = (((((libent[35] << 8) | libent[34]) << 8) |
+ libent[33]) << 8) | libent[32];
+
+ if ((slfile == stdin) || (fseek(slfile, dpos, 0) == -1)) {
+ dpos -= pos;
+
+ while (dpos-- > 0)
+ getc(slfile);
+ }
+ found = true;
+ }
+ }
- scanDirectory(slfile, 32, dirOnly, ucasen ? uname : slideName, &found);
-
- if (!found && !dirOnly)
- pm_error("slide '%s' not in library.", slideName);
+ if (!found && !dironly)
+ pm_error("slide '%s' not in library.", sname);
}
@@ -392,7 +350,7 @@ slider(slvecfn slvec,
/* Verify that slide format is compatible with this program. */
- if (!STRSEQ(slfrof.slh, slhi.slh))
+ if (streq(slfrof.slh, slhi.slh))
pm_error("this is not an AutoCAD slide file.");
/* Verify that the number format and file level in the header are
@@ -506,6 +464,8 @@ slider(slvecfn slvec,
/* Allocate image buffer and clear it to black. */
+ overflow_add(ixdots, 1);
+ overflow_add(iydots, 1);
pixels = ppm_allocarray(pixcols = ixdots + 1, pixrows = iydots + 1);
PPM_ASSIGN(rgbcolor, 0, 0, 0);
ppmd_filledrectangle(pixels, pixcols, pixrows, pixmaxval, 0, 0,
diff --git a/converter/ppm/ximtoppm.c b/converter/ppm/ximtoppm.c
index 75faac6..5758739 100644
--- a/converter/ppm/ximtoppm.c
+++ b/converter/ppm/ximtoppm.c
@@ -118,6 +118,7 @@ ReadXimHeader(FILE * const in_fp,
header->bits_channel = atoi(a_head.bits_per_channel);
header->alpha_flag = atoi(a_head.alpha_channel);
if (strlen(a_head.author)) {
+ overflow_add(strlen(a_head.author),1);
if (!(header->author = calloc((unsigned int)strlen(a_head.author)+1,
1))) {
pm_message("ReadXimHeader: can't calloc author string" );
@@ -127,6 +128,7 @@ ReadXimHeader(FILE * const in_fp,
strncpy(header->author, a_head.author, strlen(a_head.author));
}
if (strlen(a_head.date)) {
+ overflow_add(strlen(a_head.date),1);
if (!(header->date =calloc((unsigned int)strlen(a_head.date)+1,1))){
pm_message("ReadXimHeader: can't calloc date string" );
return(0);
@@ -135,6 +137,7 @@ ReadXimHeader(FILE * const in_fp,
strncpy(header->date, a_head.date, strlen(a_head.date));
}
if (strlen(a_head.program)) {
+ overflow_add(strlen(a_head.program),1);
if (!(header->program = calloc(
(unsigned int)strlen(a_head.program) + 1, 1))) {
pm_message("ReadXimHeader: can't calloc program string" );
@@ -161,6 +164,7 @@ ReadXimHeader(FILE * const in_fp,
if (header->nchannels == 3 && header->bits_channel == 8)
header->ncolors = 0;
else if (header->nchannels == 1 && header->bits_channel == 8) {
+ overflow2(header->ncolors, sizeof(Color));
header->colors = (Color *)calloc((unsigned int)header->ncolors,
sizeof(Color));
if (header->colors == NULL) {
diff --git a/editor/pamcut.c b/editor/pamcut.c
index db5b5b3..5fc0267 100644
--- a/editor/pamcut.c
+++ b/editor/pamcut.c
@@ -773,6 +773,8 @@ cutOneImage(FILE * const ifP,
outpam = inpam; /* Initial value -- most fields should be same */
outpam.file = ofP;
+ overflow_add(rightcol, 1);
+ overflow_add(bottomrow, 1);
outpam.width = rightcol - leftcol + 1;
outpam.height = bottomrow - toprow + 1;
diff --git a/editor/pnmgamma.c b/editor/pnmgamma.c
index b357b0d..ec612d3 100644
--- a/editor/pnmgamma.c
+++ b/editor/pnmgamma.c
@@ -596,6 +596,7 @@ createGammaTables(enum transferFunction const transferFunction,
xelval ** const btableP) {
/* Allocate space for the tables. */
+ overflow_add(maxval, 1);
MALLOCARRAY(*rtableP, maxval+1);
MALLOCARRAY(*gtableP, maxval+1);
MALLOCARRAY(*btableP, maxval+1);
diff --git a/editor/pnmhisteq.c b/editor/pnmhisteq.c
index a339f73..c2c85a3 100644
--- a/editor/pnmhisteq.c
+++ b/editor/pnmhisteq.c
@@ -107,6 +107,7 @@ computeLuminosityHistogram(xel * const * const xels,
unsigned int pixelCount;
unsigned int * lumahist;
+ overflow_add(maxval, 1);
MALLOCARRAY(lumahist, maxval + 1);
if (lumahist == NULL)
pm_error("Out of storage allocating array for %u histogram elements",
diff --git a/editor/pnmindex.csh b/editor/pnmindex.csh
index c6f1e84..c513a84 100755
--- a/editor/pnmindex.csh
+++ b/editor/pnmindex.csh
@@ -1,5 +1,7 @@
#!/bin/csh -f
#
+echo "Unsafe code, needs debugging, do not ship"
+exit 1
# pnmindex - build a visual index of a bunch of anymaps
#
# Copyright (C) 1991 by Jef Poskanzer.
diff --git a/editor/pnmpad.c b/editor/pnmpad.c
index 55cdcd6..10da3af 100644
--- a/editor/pnmpad.c
+++ b/editor/pnmpad.c
@@ -654,6 +654,8 @@ main(int argc, const char ** argv) {
computePadSizes(cmdline, cols, rows, &lpad, &rpad, &tpad, &bpad);
+ overflow_add(cols, lpad);
+ overflow_add(cols + lpad, rpad);
newcols = cols + lpad + rpad;
if (cmdline.reportonly)
diff --git a/editor/pnmremap.c b/editor/pnmremap.c
index 0c0096b..8b86cb7 100644
--- a/editor/pnmremap.c
+++ b/editor/pnmremap.c
@@ -468,6 +468,7 @@ fserr_init(struct pam * const pamP,
unsigned int const fserrSize = pamP->width + 2;
+ overflow_add(pamP->width, 2);
fserrP->width = pamP->width;
MALLOCARRAY(fserrP->thiserr, pamP->depth);
@@ -506,6 +507,7 @@ floydInitRow(struct pam * const pamP,
unsigned int col;
+ overflow_add(pamP->width, 2);
for (col = 0; col < pamP->width + 2; ++col) {
unsigned int plane;
for (plane = 0; plane < pamP->depth; ++plane)
diff --git a/editor/pnmremap.c.rej b/editor/pnmremap.c.rej
new file mode 100644
index 0000000..c627c20
--- /dev/null
+++ b/editor/pnmremap.c.rej
@@ -0,0 +1,10 @@
+--- editor/pnmremap.c
++++ editor/pnmremap.c
+@@ -506,6 +507,7 @@ floydInitRow(struct pam * const pamP, struct Fserr * const fserrP) {
+
+ int col;
+
++ overflow_add(pamP->width, 2);
+ for (col = 0; col < pamP->width + 2; ++col) {
+ unsigned int plane;
+ for (plane = 0; plane < pamP->depth; ++plane)
diff --git a/editor/pnmscalefixed.c b/editor/pnmscalefixed.c
index 884ca31..747cd8f 100644
--- a/editor/pnmscalefixed.c
+++ b/editor/pnmscalefixed.c
@@ -214,6 +214,7 @@ compute_output_dimensions(const struct cmdline_info cmdline,
const int rows, const int cols,
int * newrowsP, int * newcolsP) {
+ overflow2(rows, cols);
if (cmdline.pixels) {
if (rows * cols <= cmdline.pixels) {
*newrowsP = rows;
@@ -265,6 +266,8 @@ compute_output_dimensions(const struct cmdline_info cmdline,
if (*newcolsP < 1) *newcolsP = 1;
if (*newrowsP < 1) *newrowsP = 1;
+
+ overflow2(*newcolsP, *newrowsP);
}
@@ -446,6 +449,9 @@ main(int argc, char **argv ) {
unfilled. We can address that by stretching, whereas the other
case would require throwing away some of the input.
*/
+
+ overflow2(newcols, SCALE);
+ overflow2(newrows, SCALE);
sxscale = SCALE * newcols / cols;
syscale = SCALE * newrows / rows;
diff --git a/editor/ppmdither.c b/editor/ppmdither.c
index ec1b977..e701e09 100644
--- a/editor/ppmdither.c
+++ b/editor/ppmdither.c
@@ -356,6 +356,11 @@ dithMatrix(unsigned int const dithPower) {
(dithDim * sizeof(*dithMat)) + /* pointers */
(dithDim * dithDim * sizeof(**dithMat)); /* data */
+
+ overflow2(dithDim, sizeof(*dithMat));
+ overflow3(dithDim, dithDim, sizeof(**dithMat));
+ overflow_add(dithDim * sizeof(*dithMat), dithDim * dithDim * sizeof(**dithMat));
+
dithMat = malloc(dithMatSize);
if (dithMat == NULL)
diff --git a/editor/specialty/pamoil.c b/editor/specialty/pamoil.c
index 6cb8d3a..6f4bde9 100644
--- a/editor/specialty/pamoil.c
+++ b/editor/specialty/pamoil.c
@@ -112,6 +112,7 @@ main(int argc, char *argv[] ) {
tuples = pnm_readpam(ifp, &inpam, PAM_STRUCT_SIZE(tuple_type));
pm_close(ifp);
+ overflow_add(inpam.maxval, 1);
MALLOCARRAY(hist, inpam.maxval + 1);
if (hist == NULL)
pm_error("Unable to allocate memory for histogram.");
diff --git a/lib/libpam.c b/lib/libpam.c
index a8f140b..e6986f1 100644
--- a/lib/libpam.c
+++ b/lib/libpam.c
@@ -225,7 +225,8 @@ allocPamRow(const struct pam * const pamP) {
unsigned int const bytesPerTuple = allocationDepth(pamP) * sizeof(sample);
tuple * tuplerow;
- tuplerow = malloc(pamP->width * (sizeof(tuple *) + bytesPerTuple));
+ overflow_add(sizeof(tuple *), bytesPerTuple);
+ tuplerow = malloc2(pamP->width, (sizeof(tuple *) + bytesPerTuple));
if (tuplerow != NULL) {
/* Now we initialize the pointers to the individual tuples
diff --git a/lib/libpammap.c b/lib/libpammap.c
index 2222491..ba27a4c 100644
--- a/lib/libpammap.c
+++ b/lib/libpammap.c
@@ -108,7 +108,9 @@ allocTupleIntListItem(struct pam * const pamP) {
*/
struct tupleint_list_item * retval;
- unsigned int const size =
+ overflow2(pamP->depth, sizeof(sample));
+ overflow_add(sizeof(*retval)-sizeof(retval->tupleint.tuple), pamP->depth*sizeof(sample));
+ unsigned int const size =
sizeof(*retval) - sizeof(retval->tupleint.tuple)
+ pamP->depth * sizeof(sample);
diff --git a/lib/libpm.c b/lib/libpm.c
index 47a2f49..a263598 100644
--- a/lib/libpm.c
+++ b/lib/libpm.c
@@ -888,5 +888,53 @@ pm_parse_height(const char * const arg) {
return height;
}
+/*
+ * Maths wrapping
+ */
+void __overflow2(int a, int b)
+{
+ if(a < 0 || b < 0)
+ pm_error("object too large");
+ if(b == 0)
+ return;
+ if(a > INT_MAX / b)
+ pm_error("object too large");
+}
+
+void overflow3(int a, int b, int c)
+{
+ overflow2(a,b);
+ overflow2(a*b, c);
+}
+
+void overflow_add(int a, int b)
+{
+ if( a > INT_MAX - b)
+ pm_error("object too large");
+}
+
+void *malloc2(int a, int b)
+{
+ overflow2(a, b);
+ if(a*b == 0)
+ pm_error("Zero byte allocation");
+ return malloc(a*b);
+}
+
+void *malloc3(int a, int b, int c)
+{
+ overflow3(a, b, c);
+ if(a*b*c == 0)
+ pm_error("Zero byte allocation");
+ return malloc(a*b*c);
+}
+
+void *realloc2(void * a, int b, int c)
+{
+ overflow2(b, c);
+ if(b*c == 0)
+ pm_error("Zero byte allocation");
+ return realloc(a, b*c);
+}
diff --git a/lib/pm.h b/lib/pm.h
index 3fc92fb..1e30ce9 100644
--- a/lib/pm.h
+++ b/lib/pm.h
@@ -441,5 +441,12 @@ pm_parse_height(const char * const arg);
}
#endif
+void *malloc2(int, int);
+void *malloc3(int, int, int);
+#define overflow2(a,b) __overflow2(a,b)
+void __overflow2(int, int);
+void overflow3(int, int, int);
+void overflow_add(int, int);
+
#endif
diff --git a/lib/pm.h.orig b/lib/pm.h.orig
new file mode 100644
index 0000000..471f445
--- /dev/null
+++ b/lib/pm.h.orig
@@ -0,0 +1,446 @@
+/* pm.h - interface to format-independent part of libpbm.
+**
+** Copyright (C) 1988, 1989, 1991 by Jef Poskanzer.
+**
+** Permission to use, copy, modify, and distribute this software and its
+** documentation for any purpose and without fee is hereby granted, provided
+** that the above copyright notice appear in all copies and that both that
+** copyright notice and this permission notice appear in supporting
+** documentation. This software is provided "as is" without express or
+** implied warranty.
+*/
+
+#ifndef PM_H_INCLUDED
+#define PM_H_INCLUDED
+
+#include <netpbm/pm_config.h>
+
+#include <sys/types.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <setjmp.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#if 0
+} /* to fake out automatic code indenters */
+#endif
+
+
+/* Definitions to make Netpbm programs work with either ANSI C or C
+ Classic.
+
+ This is obsolete, as all compilers recognize the ANSI syntax now.
+
+ We are slowly removing all the ARGS invocations from the programs
+ (and replacing them with explicit ANSI syntax), but we have a lot
+ of programs where we have removed ARGS from the definition but not
+ the prototype, and we have discovered that the Sun compiler
+ considers the resulting mismatch between definition and prototype
+ to be an error. So we make ARGS create the ANSI syntax
+ unconditionally to avoid having to fix all those mismatches. */
+
+#if 0
+#if __STDC__
+#define ARGS(alist) alist
+#else /*__STDC__*/
+#define ARGS(alist) ()
+#define const
+#endif /*__STDC__*/
+#endif
+#define ARGS(alist) alist
+
+
+/* PM_GNU_PRINTF_ATTR lets the GNU compiler check pm_message() and pm_error()
+ calls to be sure the arguments match the format string, thus preventing
+ runtime segmentation faults and incorrect messages.
+*/
+#ifdef __GNUC__
+#define PM_GNU_PRINTF_ATTR(a,b) __attribute__ ((format (printf, a, b)))
+#else
+#define PM_GNU_PRINTF_ATTR(a,b)
+#endif
+
+
+/* PURE_FN_ATTR is the attribute you add to a function declaration
+ that indicates it's a true function -- has no side effects and return
+ value is not influenced by anything except its arguments.
+*/
+#ifdef __GNUC__
+#define PURE_FN_ATTR __attribute__ ((const))
+#else
+#define PURE_FN_ATTR
+#endif
+
+
+/* S_IRUSR is POSIX, defined in <sys/stat.h> Some old BSD systems and Windows
+ systems have S_IREAD instead. Most Unix today (2011) has both. In 2011,
+ Android has S_IRUSR and not S_IREAD.
+
+ Some Windows has _S_IREAD.
+
+ We're ignoring S_IREAD now to see if anyone misses it. If there are still
+ users that need it, we can handle it here.
+*/
+#if MSVCRT
+ #define PM_S_IWUSR _S_IWRITE
+ #define PM_S_IRUSR _S_IREAD
+#else
+ #define PM_S_IWUSR S_IWUSR
+ #define PM_S_IRUSR S_IRUSR
+#endif
+
+
+
+typedef struct {
+ /* Coordinates of a pixel within an image. Row 0 is the top row.
+ Column 0 is the left column.
+ */
+ unsigned int row;
+ unsigned int col;
+} pm_pixelcoord;
+
+extern int pm_plain_output;
+ /* Output functions are to produce plain (as opposed to raw) format
+ regardless of their 'plainformat' arguments.
+ */
+extern const char * pm_progname;
+
+void
+pm_init(const char * const progname, unsigned int const flags);
+
+void
+pm_proginit(int * const argcP, const char * argv[]);
+
+void
+pm_setMessage(int const newState, int * const oldStateP);
+
+int
+pm_getMessage(void);
+
+FILE *
+pm_tmpfile(void);
+
+int
+pm_tmpfile_fd(void);
+
+void
+pm_make_tmpfile(FILE ** const filePP,
+ const char ** const filenameP);
+
+void
+pm_make_tmpfile_fd(int * const fdP,
+ const char ** const filenameP);
+
+void
+pm_nextimage(FILE * const file, int * const eofP);
+
+/* Variable-sized arrays definitions. */
+
+char**
+pm_allocarray (int const cols, int const rows, int const size );
+
+void *
+pm_allocrow(unsigned int const cols,
+ unsigned int const size);
+
+void
+pm_freearray (char** const its, int const rows);
+
+void
+pm_freerow(void * const row);
+
+
+/* Obsolete -- use shhopt instead */
+int
+pm_keymatch(const char * const str,
+ const char * const keyword,
+ int const minchars);
+
+
+int PURE_FN_ATTR
+pm_maxvaltobits(int const maxval);
+
+int PURE_FN_ATTR
+pm_bitstomaxval(int const bits);
+
+unsigned int PURE_FN_ATTR
+pm_lcm (unsigned int const x,
+ unsigned int const y,
+ unsigned int const z,
+ unsigned int const limit);
+
+void
+pm_setjmpbuf(jmp_buf * const jmpbufP);
+
+void
+pm_setjmpbufsave(jmp_buf * const jmpbufP,
+ jmp_buf ** const oldJmpbufPP);
+
+void
+pm_longjmp(void);
+
+void
+pm_fork(int * const iAmParentP,
+ pid_t * const childPidP,
+ const char ** const errorP);
+
+void
+pm_waitpid(pid_t const pid,
+ int * const statusP,
+ int const options,
+ pid_t * const exitedPidP,
+ const char ** const errorP);
+
+
+void
+pm_waitpidSimple(pid_t const pid);
+
+typedef void pm_usermessagefn(const char * msg);
+
+void
+pm_setusermessagefn(pm_usermessagefn * fn);
+
+typedef void pm_usererrormsgfn(const char * msg);
+
+void
+pm_setusererrormsgfn(pm_usererrormsgfn * fn);
+
+void PM_GNU_PRINTF_ATTR(1,2)
+pm_message (const char format[], ...);
+
+void PM_GNU_PRINTF_ATTR(1,2)
+pm_errormsg(const char format[], ...);
+
+void PM_GNU_PRINTF_ATTR(1,2)
+pm_error (const char reason[], ...);
+
+int
+pm_have_float_format(void);
+
+/* Obsolete - use shhopt and user's manual instead */
+void
+pm_usage (const char usage[]);
+
+FILE*
+pm_openr (const char* const name);
+
+FILE*
+pm_openw (const char* const name);
+
+FILE *
+pm_openr_seekable(const char name[]);
+
+void
+pm_close (FILE* const f);
+
+void
+pm_closer (FILE* const f);
+
+void
+pm_closew (FILE* const f);
+
+
+
+void
+pm_readchar(FILE * const ifP,
+ char * const cP);
+
+static __inline__ void
+pm_readcharu(FILE * const ifP,
+ unsigned char * const cP) {
+ pm_readchar(ifP, (char *) cP);
+}
+
+void
+pm_writechar(FILE * const ofP,
+ char const c);
+
+static __inline__ void
+pm_writecharu(FILE * const ofP,
+ unsigned char const c) {
+ pm_writechar(ofP, (char) c);
+}
+
+int
+pm_readbigshort(FILE * const ifP,
+ short * const sP);
+
+static __inline__ int
+pm_readbigshortu(FILE* const ifP,
+ unsigned short * const sP) {
+ return pm_readbigshort(ifP, (short *) sP);
+}
+
+int
+pm_writebigshort(FILE * const ofP,
+ short const s);
+
+static __inline__ int
+pm_writebigshortu(FILE * const ofP,
+ unsigned short const s) {
+ return pm_writebigshort(ofP, (short) s);
+}
+
+int
+pm_readbiglong(FILE * const ifP,
+ long * const lP);
+
+static __inline__ int
+pm_readbiglongu(FILE * const ifP,
+ unsigned long * const lP) {
+ return pm_readbiglong(ifP, (long *) lP);
+}
+
+int
+pm_readbiglong2(FILE * const ifP,
+ int32_t * const lP);
+
+static __inline__ int
+pm_readbiglongu2(FILE * const ifP,
+ uint32_t * const lP) {
+ return pm_readbiglong2(ifP, (int32_t *) lP);
+}
+
+int
+pm_writebiglong(FILE * const ofP,
+ long const l);
+
+static __inline__ int
+pm_writebiglongu(FILE * const ofP,
+ unsigned long const l) {
+ return pm_writebiglong(ofP, (long) l);
+}
+
+int
+pm_readlittleshort(FILE * const ifP,
+ short * const sP);
+
+static __inline__ int
+pm_readlittleshortu(FILE * const ifP,
+ unsigned short * const sP) {
+ return pm_readlittleshort(ifP, (short *) sP);
+}
+
+int
+pm_writelittleshort(FILE * const ofP,
+ short const s);
+
+static __inline__ int
+pm_writelittleshortu(FILE * const ofP,
+ unsigned short const s) {
+ return pm_writelittleshort(ofP, (short) s);
+}
+
+int
+pm_readlittlelong(FILE * const ifP,
+ long * const lP);
+
+static __inline__ int
+pm_readlittlelongu(FILE * const ifP,
+ unsigned long * const lP) {
+ return pm_readlittlelong(ifP, (long *) lP);
+}
+
+int
+pm_readlittlelong2(FILE * const ifP,
+ int32_t * const lP);
+
+static __inline__ int
+pm_readlittlelong2u(FILE * const ifP,
+ uint32_t * const lP) {
+ return pm_readlittlelong2(ifP, (int32_t *) lP);
+}
+
+int
+pm_writelittlelong(FILE * const ofP,
+ long const l);
+
+static __inline__ int
+pm_writelittlelongu(FILE * const ofP,
+ unsigned long const l) {
+ return pm_writelittlelong(ofP, (long) l);
+}
+
+int
+pm_readmagicnumber(FILE * const ifP);
+
+char*
+pm_read_unknown_size(FILE * const ifP,
+ long * const buf);
+
+void
+pm_getline(FILE * const ifP,
+ char ** const bufferP,
+ size_t * const bufferSzP,
+ int * const eofP,
+ size_t * const lineLenP);
+
+short
+pm_bs_short(short const s);
+
+long
+pm_bs_long(long const l);
+
+unsigned int
+pm_tell(FILE * const fileP);
+
+void
+pm_tell2(FILE * const fileP,
+ void * const fileposP,
+ unsigned int const fileposSize);
+
+void
+pm_seek2(FILE * const fileP,
+ const pm_filepos * const fileposP,
+ unsigned int const fileposSize);
+
+void
+pm_seek(FILE * const fileP, unsigned long filepos);
+
+enum pm_check_code {
+ PM_CHECK_OK,
+ PM_CHECK_UNKNOWN_TYPE,
+ PM_CHECK_TOO_LONG,
+ PM_CHECK_UNCHECKABLE,
+ PM_CHECK_TOO_SHORT
+};
+
+enum pm_check_type {
+ PM_CHECK_BASIC
+};
+
+void
+pm_check(FILE * const file,
+ enum pm_check_type const check_type,
+ pm_filepos const need_raster_size,
+ enum pm_check_code * const retval_p);
+
+void
+pm_drain(FILE * const fileP,
+ unsigned int const limit,
+ unsigned int * const bytesReadP);
+
+char *
+pm_arg0toprogname(const char arg0[]);
+
+unsigned int
+pm_randseed(void);
+
+unsigned int
+pm_parse_width(const char * const arg);
+
+unsigned int
+pm_parse_height(const char * const arg);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif
diff --git a/other/pnmcolormap.c b/other/pnmcolormap.c
index 7da3122..dafa390 100644
--- a/other/pnmcolormap.c
+++ b/other/pnmcolormap.c
@@ -1002,6 +1002,7 @@ colormapToSquare(struct pam * const pamP,
pamP->width = intsqrt;
else
pamP->width = intsqrt + 1;
+ overflow_add(intsqrt, 1);
}
{
unsigned int const intQuotient = colormap.size / pamP->width;
diff --git a/other/pnmcolormap.c.orig b/other/pnmcolormap.c.orig
new file mode 100644
index 0000000..7da3122
--- /dev/null
+++ b/other/pnmcolormap.c.orig
@@ -0,0 +1,1143 @@
+/******************************************************************************
+ pnmcolormap.c
+*******************************************************************************
+
+ Create a colormap file (a PPM image containing one pixel of each of a set
+ of colors). Base the set of colors on an input image.
+
+ For PGM input, do the equivalent for grayscale and produce a PGM graymap.
+
+ By Bryan Henderson, San Jose, CA 2001.12.17
+
+ Derived from ppmquant, originally by Jef Poskanzer.
+
+ Copyright (C) 1989, 1991 by Jef Poskanzer.
+ Copyright (C) 2001 by Bryan Henderson.
+
+ Permission to use, copy, modify, and distribute this software and its
+ documentation for any purpose and without fee is hereby granted, provided
+ that the above copyright notice appear in all copies and that both that
+ copyright notice and this permission notice appear in supporting
+ documentation. This software is provided "as is" without express or
+ implied warranty.
+
+******************************************************************************/
+
+#include <assert.h>
+#include <math.h>
+
+#include "pm_config.h"
+#include "pm_c_util.h"
+#include "mallocvar.h"
+#include "nstring.h"
+#include "shhopt.h"
+#include "pam.h"
+#include "pammap.h"
+
+enum MethodForLargest {LARGE_NORM, LARGE_LUM};
+
+enum MethodForRep {REP_CENTER_BOX, REP_AVERAGE_COLORS, REP_AVERAGE_PIXELS};
+
+enum MethodForSplit {SPLIT_MAX_PIXELS, SPLIT_MAX_COLORS, SPLIT_MAX_SPREAD};
+
+struct Box {
+ unsigned int index;
+ unsigned int colorCt;
+ unsigned int sum;
+ unsigned int maxdim;
+ /* which dimension has the largest spread. RGB plane number. */
+ sample spread;
+ /* spread in dimension 'maxdim' */
+};
+
+struct BoxVector {
+ struct Box * box; /* malloc'ed array */
+ unsigned int boxCt;
+ unsigned int capacity;
+};
+
+struct CmdlineInfo {
+ /* All the information the user supplied in the command line,
+ in a form easy for the program to use.
+ */
+ const char * inputFileNm; /* Name of input file */
+ unsigned int allcolors; /* boolean: select all colors from the input */
+ unsigned int newcolors;
+ /* Number of colors argument; meaningless if allcolors true */
+ enum MethodForLargest methodForLargest;
+ /* -spreadintensity/-spreadluminosity options */
+ enum MethodForRep methodForRep;
+ /* -center/-meancolor/-meanpixel options */
+ enum MethodForSplit methodForSplit;
+ /* -splitpixelct/-splitcolorct/-splitspread options */
+ unsigned int sort;
+ unsigned int square;
+ unsigned int verbose;
+};
+
+
+
+static void
+parseCommandLine (int argc, const char ** argv,
+ struct CmdlineInfo *cmdlineP) {
+/*----------------------------------------------------------------------------
+ parse program command line described in Unix standard form by argc
+ and argv. Return the information in the options as *cmdlineP.
+
+ If command line is internally inconsistent (invalid options, etc.),
+ issue error message to stderr and abort program.
+
+ Note that the strings we return are stored in the storage that
+ was passed to us as the argv array. We also trash *argv.
+-----------------------------------------------------------------------------*/
+ optEntry *option_def;
+ /* Instructions to pm_optParseOptions3 on how to parse our options.
+ */
+ optStruct3 opt;
+
+ unsigned int option_def_index;
+
+ unsigned int spreadbrightness, spreadluminosity;
+ unsigned int center, meancolor, meanpixel;
+ unsigned int splitpixelct, splitcolorct, splitspread;
+
+ MALLOCARRAY_NOFAIL(option_def, 100);
+
+ option_def_index = 0; /* incremented by OPTENT3 */
+ OPTENT3(0, "spreadbrightness", OPT_FLAG,
+ NULL, &spreadbrightness, 0);
+ OPTENT3(0, "spreadluminosity", OPT_FLAG,
+ NULL, &spreadluminosity, 0);
+ OPTENT3(0, "center", OPT_FLAG,
+ NULL, &center, 0);
+ OPTENT3(0, "meancolor", OPT_FLAG,
+ NULL, &meancolor, 0);
+ OPTENT3(0, "meanpixel", OPT_FLAG,
+ NULL, &meanpixel, 0);
+ OPTENT3(0, "splitpixelct", OPT_FLAG,
+ NULL, &splitpixelct, 0);
+ OPTENT3(0, "splitcolorct", OPT_FLAG,
+ NULL, &splitcolorct, 0);
+ OPTENT3(0, "splitspread", OPT_FLAG,
+ NULL, &splitspread, 0);
+ OPTENT3(0, "sort", OPT_FLAG, NULL,
+ &cmdlineP->sort, 0 );
+ OPTENT3(0, "square", OPT_FLAG, NULL,
+ &cmdlineP->square, 0 );
+ OPTENT3(0, "verbose", OPT_FLAG, NULL,
+ &cmdlineP->verbose, 0 );
+
+ opt.opt_table = option_def;
+ opt.short_allowed = FALSE; /* We have no short (old-fashioned) options */
+ opt.allowNegNum = FALSE; /* We have no parms that are negative numbers */
+
+ pm_optParseOptions3( &argc, (char **)argv, opt, sizeof(opt), 0 );
+ /* Uses and sets argc, argv, and some of *cmdline_p and others. */
+
+
+ if (spreadbrightness && spreadluminosity)
+ pm_error("You cannot specify both -spreadbrightness and "
+ "spreadluminosity.");
+ if (spreadluminosity)
+ cmdlineP->methodForLargest = LARGE_LUM;
+ else
+ cmdlineP->methodForLargest = LARGE_NORM;
+
+ if (center + meancolor + meanpixel > 1)
+ pm_error("You can specify only one of -center, -meancolor, and "
+ "-meanpixel.");
+ if (meancolor)
+ cmdlineP->methodForRep = REP_AVERAGE_COLORS;
+ else if (meanpixel)
+ cmdlineP->methodForRep = REP_AVERAGE_PIXELS;
+ else
+ cmdlineP->methodForRep = REP_CENTER_BOX;
+
+ if (splitpixelct)
+ cmdlineP->methodForSplit = SPLIT_MAX_PIXELS;
+ else if (splitcolorct)
+ cmdlineP->methodForSplit = SPLIT_MAX_COLORS;
+ else if (splitspread)
+ cmdlineP->methodForSplit = SPLIT_MAX_SPREAD;
+ else
+ cmdlineP->methodForSplit = SPLIT_MAX_PIXELS;
+
+ if (argc-1 > 2)
+ pm_error("Program takes at most two arguments: number of colors "
+ "and input file specification. "
+ "You specified %d arguments.", argc-1);
+ else {
+ if (argc-1 < 2)
+ cmdlineP->inputFileNm = "-";
+ else
+ cmdlineP->inputFileNm = argv[2];
+
+ if (argc-1 < 1)
+ pm_error("You must specify the number of colors in the "
+ "output as an argument.");
+ else {
+ if (strcmp(argv[1], "all") == 0)
+ cmdlineP->allcolors = TRUE;
+ else {
+ char * tail;
+ long int const newcolors = strtol(argv[1], &tail, 10);
+ if (*tail != '\0')
+ pm_error("The number of colors argument '%s' is not "
+ "a number or 'all'", argv[1]);
+ else if (newcolors < 1)
+ pm_error("The number of colors must be positive");
+ else if (newcolors == 1)
+ pm_error("The number of colors must be greater than 1.");
+ else {
+ cmdlineP->newcolors = newcolors;
+ cmdlineP->allcolors = FALSE;
+ }
+ }
+ }
+ }
+}
+
+
+
+#ifndef LITERAL_FN_DEF_MATCH
+static qsort_comparison_fn compareplane;
+#endif
+
+static unsigned int compareplanePlane;
+ /* This is a parameter to compareplane(). We use this global variable
+ so that compareplane() can be called by qsort(), to compare two
+ tuples. qsort() doesn't pass any arguments except the two tuples.
+ */
+static int
+compareplane(const void * const arg1,
+ const void * const arg2) {
+
+ const struct tupleint * const * const comparandPP = arg1;
+ const struct tupleint * const * const comparatorPP = arg2;
+
+ sample const comparandSample = (*comparandPP) ->tuple[compareplanePlane];
+ sample const comparatorSample = (*comparatorPP)->tuple[compareplanePlane];
+
+ return
+ comparandSample < comparatorSample ? -1 :
+ comparandSample > comparatorSample ? 1 :
+ 0;
+}
+
+
+
+#ifndef LITERAL_FN_DEF_MATCH
+static qsort_comparison_fn sumcompare;
+#endif
+
+static int
+sumcompare(const void * const arg1,
+ const void * const arg2) {
+
+ struct Box * const comparandP = (struct Box *)arg1;
+ struct Box * const comparatorP = (struct Box *)arg2;
+
+ return
+ comparatorP->sum < comparandP->sum ? -1 :
+ comparatorP->sum > comparandP->sum ? 1 :
+ 0;
+}
+
+
+
+#ifndef LITERAL_FN_DEF_MATCH
+static qsort_comparison_fn colcompare;
+#endif
+
+static int
+colcompare(const void * const arg1,
+ const void * const arg2) {
+
+ struct Box * const comparandP = (struct Box *)arg1;
+ struct Box * const comparatorP = (struct Box *)arg2;
+
+ return
+ comparatorP->colorCt < comparandP->colorCt ? -1 :
+ comparatorP->colorCt > comparandP->colorCt ? 1 :
+ 0;
+}
+
+
+
+#ifndef LITERAL_FN_DEF_MATCH
+static qsort_comparison_fn spreadcompare;
+#endif
+
+static int
+spreadcompare(const void * const arg1,
+ const void * const arg2) {
+
+ struct Box * const comparandP = (struct Box *)arg1;
+ struct Box * const comparatorP = (struct Box *)arg2;
+
+ return
+ comparatorP->spread < comparandP->spread ? -1 :
+ comparatorP->spread > comparandP->spread ? 1 :
+ 0;
+}
+
+
+
+static void
+sortBoxes(struct BoxVector * const boxVectorP,
+ enum MethodForSplit const methodForSplit) {
+
+ qsort_comparison_fn * comparisonFn;
+
+ switch (methodForSplit){
+ case SPLIT_MAX_PIXELS: comparisonFn = &sumcompare; break;
+ case SPLIT_MAX_COLORS: comparisonFn = &colcompare; break;
+ case SPLIT_MAX_SPREAD: comparisonFn = &spreadcompare; break;
+ }
+
+ qsort((char*) &boxVectorP->box[0], boxVectorP->boxCt, sizeof(struct Box),
+ comparisonFn);
+}
+
+
+
+/*
+** Here is the fun part, the median-cut colormap generator. This is based
+** on Paul Heckbert's paper "Color Image Quantization for Frame Buffer
+** Display", SIGGRAPH '82 Proceedings, page 297.
+*/
+
+static void
+findBoxBoundaries(tupletable2 const colorfreqtable,
+ unsigned int const depth,
+ unsigned int const boxStart,
+ unsigned int const boxSize,
+ sample minval[],
+ sample maxval[]) {
+/*----------------------------------------------------------------------------
+ Go through the box finding the minimum and maximum of each component - the
+ boundaries of the box.
+-----------------------------------------------------------------------------*/
+ unsigned int plane;
+ unsigned int i;
+
+ for (plane = 0; plane < depth; ++plane) {
+ minval[plane] = colorfreqtable.table[boxStart]->tuple[plane];
+ maxval[plane] = minval[plane];
+ }
+
+ for (i = 1; i < boxSize; ++i) {
+ unsigned int plane;
+ for (plane = 0; plane < depth; ++plane) {
+ sample const v = colorfreqtable.table[boxStart + i]->tuple[plane];
+ if (v < minval[plane]) minval[plane] = v;
+ if (v > maxval[plane]) maxval[plane] = v;
+ }
+ }
+}
+
+
+
+static void
+findPlaneWithLargestSpreadByNorm(sample const minval[],
+ sample const maxval[],
+ unsigned int const depth,
+ unsigned int * const planeP,
+ sample * const spreadP) {
+
+ unsigned int planeWithLargest;
+ sample largestSpreadSoFar;
+ unsigned int plane;
+
+ for (plane = 0, largestSpreadSoFar = 0; plane < depth; ++plane) {
+
+ sample const spread = maxval[plane]-minval[plane];
+ if (spread > largestSpreadSoFar) {
+ largestSpreadSoFar = spread;
+ planeWithLargest = plane;
+ }
+ }
+ *planeP = planeWithLargest;
+ *spreadP = largestSpreadSoFar;
+}
+
+
+
+static void
+findPlaneWithLargestSpreadByLuminosity(sample const minval[],
+ sample const maxval[],
+ unsigned int const depth,
+ unsigned int * const planeP,
+ sample * const spreadP) {
+/*----------------------------------------------------------------------------
+ This subroutine presumes that the tuple type is either
+ BLACKANDWHITE, GRAYSCALE, or RGB (which implies pamP->depth is 1 or 3).
+ To save time, we don't actually check it.
+-----------------------------------------------------------------------------*/
+ if (depth == 1){
+ *planeP = 0;
+ *spreadP = 0;
+ } else {
+ /* An RGB tuple */
+ unsigned int planeWithLargest;
+ sample largestSpreadSoFar;
+ unsigned int plane;
+
+ assert(depth >= 3);
+
+ for (plane = 0, largestSpreadSoFar = 0; plane < 3; ++plane) {
+ double const spread =
+ pnm_lumin_factor[plane] * (maxval[plane]-minval[plane]);
+ if (spread > largestSpreadSoFar) {
+ largestSpreadSoFar = spread;
+ planeWithLargest = plane;
+ }
+ }
+ *planeP = planeWithLargest;
+ *spreadP = largestSpreadSoFar;
+ }
+}
+
+
+
+static void
+computeBoxSpread(const struct Box * const boxP,
+ tupletable2 const colorfreqtable,
+ unsigned int const depth,
+ enum MethodForLargest const methodForLargest,
+ unsigned int * const planeWithLargestP,
+ sample * const spreadP
+ ) {
+/*----------------------------------------------------------------------------
+ Find the spread in the dimension in which it is greatest.
+
+ Return as *planeWithLargestP the number of that plane and as *spreadP the
+ spread in that plane.
+-----------------------------------------------------------------------------*/
+ sample * minval; /* malloc'ed array */
+ sample * maxval; /* malloc'ed array */
+
+ MALLOCARRAY_NOFAIL(minval, depth);
+ MALLOCARRAY_NOFAIL(maxval, depth);
+
+ findBoxBoundaries(colorfreqtable, depth, boxP->index, boxP->colorCt,
+ minval, maxval);
+
+ switch (methodForLargest) {
+ case LARGE_NORM:
+ findPlaneWithLargestSpreadByNorm(minval, maxval, depth,
+ planeWithLargestP, spreadP);
+ break;
+ case LARGE_LUM:
+ findPlaneWithLargestSpreadByLuminosity(minval, maxval, depth,
+ planeWithLargestP, spreadP);
+ break;
+ }
+ free(minval); free(maxval);
+}
+
+
+
+static unsigned int
+freqTotal(tupletable2 const freqtable) {
+
+ unsigned int i;
+ unsigned int sum;
+
+ for (i = 0, sum = 0; i < freqtable.size; ++i)
+ sum += freqtable.table[i]->value;
+
+ return sum;
+}
+
+
+
+static struct BoxVector
+newBoxVector(tupletable2 const colorfreqtable,
+ unsigned int const capacity,
+ unsigned int const depth,
+ enum MethodForLargest const methodForLargest) {
+
+ unsigned int const colorCt = colorfreqtable.size;
+ unsigned int const sum = freqTotal(colorfreqtable);
+
+ struct BoxVector boxVector;
+
+ MALLOCARRAY(boxVector.box, capacity);
+
+ if (!boxVector.box)
+ pm_error("out of memory allocating box vector table");
+
+ /* Set up the initial box. */
+ boxVector.box[0].index = 0;
+ boxVector.box[0].colorCt = colorCt;
+ boxVector.box[0].sum = sum;
+
+ computeBoxSpread(&boxVector.box[0], colorfreqtable, depth,
+ methodForLargest,
+ &boxVector.box[0].maxdim,
+ &boxVector.box[0].spread);
+
+ boxVector.boxCt = 1;
+ boxVector.capacity = capacity;
+
+ return boxVector;
+}
+
+
+
+static void
+destroyBoxVector(struct BoxVector const boxVector) {
+
+ free(boxVector.box);
+}
+
+
+
+static void
+centerBox(int const boxStart,
+ int const boxSize,
+ tupletable2 const colorfreqtable,
+ unsigned int const depth,
+ tuple const newTuple) {
+
+ unsigned int plane;
+
+ for (plane = 0; plane < depth; ++plane) {
+ int minval, maxval;
+ unsigned int i;
+
+ minval = maxval = colorfreqtable.table[boxStart]->tuple[plane];
+
+ for (i = 1; i < boxSize; ++i) {
+ int const v = colorfreqtable.table[boxStart + i]->tuple[plane];
+ minval = MIN( minval, v);
+ maxval = MAX( maxval, v);
+ }
+ newTuple[plane] = (minval + maxval) / 2;
+ }
+}
+
+
+
+static tupletable2
+newColorMap(unsigned int const colorCt,
+ unsigned int const depth) {
+
+ tupletable2 colormap;
+ unsigned int i;
+ struct pam pam;
+
+ pam.depth = depth;
+
+ colormap.table = pnm_alloctupletable(&pam, colorCt);
+
+ for (i = 0; i < colorCt; ++i) {
+ unsigned int plane;
+ for (plane = 0; plane < depth; ++plane)
+ colormap.table[i]->tuple[plane] = 0;
+ }
+ colormap.size = colorCt;
+
+ return colormap;
+}
+
+
+
+static void
+averageColors(int const boxStart,
+ int const boxSize,
+ tupletable2 const colorfreqtable,
+ unsigned int const depth,
+ tuple const newTuple) {
+
+ unsigned int plane;
+
+ for (plane = 0; plane < depth; ++plane) {
+ sample sum;
+ int i;
+
+ sum = 0;
+
+ for (i = 0; i < boxSize; ++i)
+ sum += colorfreqtable.table[boxStart+i]->tuple[plane];
+
+ newTuple[plane] = ROUNDDIV(sum, boxSize);
+ }
+}
+
+
+
+static void
+averagePixels(int const boxStart,
+ int const boxSize,
+ tupletable2 const colorfreqtable,
+ unsigned int const depth,
+ tuple const newTuple) {
+
+ unsigned int n;
+ /* Number of tuples represented by the box */
+ unsigned int plane;
+ unsigned int i;
+
+ /* Count the tuples in question */
+ n = 0; /* initial value */
+ for (i = 0; i < boxSize; ++i)
+ n += colorfreqtable.table[boxStart + i]->value;
+
+
+ for (plane = 0; plane < depth; ++plane) {
+ sample sum;
+ int i;
+
+ sum = 0;
+
+ for (i = 0; i < boxSize; ++i)
+ sum += colorfreqtable.table[boxStart+i]->tuple[plane]
+ * colorfreqtable.table[boxStart+i]->value;
+
+ newTuple[plane] = ROUNDDIV(sum, n);
+ }
+}
+
+
+
+static tupletable2
+colormapFromBv(unsigned int const colorCt,
+ struct BoxVector const boxVector,
+ tupletable2 const colorfreqtable,
+ unsigned int const depth,
+ enum MethodForRep const methodForRep) {
+ /*
+ ** Ok, we've got enough boxes. Now choose a representative color for
+ ** each box. There are a number of possible ways to make this choice.
+ ** One would be to choose the center of the box; this ignores any structure
+ ** within the boxes. Another method would be to average all the colors in
+ ** the box - this is the method specified in Heckbert's paper. A third
+ ** method is to average all the pixels in the box.
+ */
+ tupletable2 colormap;
+ unsigned int boxIdx;
+
+ colormap = newColorMap(colorCt, depth);
+
+ for (boxIdx = 0; boxIdx < boxVector.boxCt; ++boxIdx) {
+ switch (methodForRep) {
+ case REP_CENTER_BOX:
+ centerBox(boxVector.box[boxIdx].index,
+ boxVector.box[boxIdx].colorCt,
+ colorfreqtable, depth,
+ colormap.table[boxIdx]->tuple);
+ break;
+ case REP_AVERAGE_COLORS:
+ averageColors(boxVector.box[boxIdx].index,
+ boxVector.box[boxIdx].colorCt,
+ colorfreqtable, depth,
+ colormap.table[boxIdx]->tuple);
+ break;
+ case REP_AVERAGE_PIXELS:
+ averagePixels(boxVector.box[boxIdx].index,
+ boxVector.box[boxIdx].colorCt,
+ colorfreqtable, depth,
+ colormap.table[boxIdx]->tuple);
+ break;
+ default:
+ pm_error("Internal error: invalid value of methodForRep: %d",
+ methodForRep);
+ }
+ }
+ return colormap;
+}
+
+
+
+static void
+splitBox(struct BoxVector * const boxVectorP,
+ unsigned int const boxIdx,
+ tupletable2 const colorfreqtable,
+ unsigned int const depth,
+ enum MethodForLargest const methodForLargest,
+ enum MethodForSplit const methodForSplit) {
+/*----------------------------------------------------------------------------
+ Split Box 'boxIdx' in the box vector 'boxVector' (so that bv contains one
+ more box than it did as input). Split it so that each new box represents
+ about half of the pixels in the distribution given by 'colorfreqtable' for
+ the colors in the original box, but with distinct colors in each of the two
+ new boxes.
+
+ Assume the box contains at least two colors.
+-----------------------------------------------------------------------------*/
+ unsigned int const boxStart = boxVectorP->box[boxIdx].index;
+ unsigned int const boxSize = boxVectorP->box[boxIdx].colorCt;
+ unsigned int const sum = boxVectorP->box[boxIdx].sum;
+
+ unsigned int medianIndex;
+ int lowersum;
+ /* Number of pixels whose value is "less than" the median */
+
+
+ /* Perhaps this sort should go after creating a box, not before splitting.
+ Because you need the sort to use the REP_CENTER_BOX method of choosing
+ a color to represent the final boxes
+ */
+
+ /* Set the gross global variable 'compareplanePlane' as a
+ parameter to compareplane(), which is called by qsort().
+ */
+ compareplanePlane = boxVectorP->box[boxIdx].maxdim;
+ qsort((char*) &colorfreqtable.table[boxStart], boxSize,
+ sizeof(colorfreqtable.table[boxStart]),
+ compareplane);
+
+ {
+ /* Find the median based on the counts, so that about half the pixels
+ (not colors, pixels) are in each subdivision.
+ */
+ unsigned int i;
+
+ lowersum = colorfreqtable.table[boxStart]->value; /* initial value */
+ for (i = 1; i < boxSize - 1 && lowersum < sum/2; ++i) {
+ lowersum += colorfreqtable.table[boxStart + i]->value;
+ }
+ medianIndex = i;
+ }
+ /* Split the box, and sort to bring the biggest boxes to the top. */
+ {
+ struct Box * const oldBoxP = &boxVectorP->box[boxIdx];
+
+ oldBoxP->colorCt = medianIndex;
+ oldBoxP->sum = lowersum;
+ computeBoxSpread(oldBoxP, colorfreqtable, depth, methodForLargest,
+ &oldBoxP->maxdim, &oldBoxP->spread);
+ }
+ {
+ struct Box * const newBoxP = &boxVectorP->box[boxVectorP->boxCt];
+
+ newBoxP->index = boxStart + medianIndex;
+ newBoxP->colorCt = boxSize - medianIndex;
+ newBoxP->sum = sum - lowersum;
+ computeBoxSpread(newBoxP, colorfreqtable, depth, methodForLargest,
+ &newBoxP->maxdim, &newBoxP->spread);
+ ++boxVectorP->boxCt;
+ }
+
+ sortBoxes(boxVectorP, methodForSplit);
+}
+
+
+
+static void
+mediancut(tupletable2 const colorfreqtable,
+ unsigned int const depth,
+ int const newcolorCt,
+ enum MethodForLargest const methodForLargest,
+ enum MethodForRep const methodForRep,
+ enum MethodForSplit const methodForSplit,
+ tupletable2 * const colormapP) {
+/*----------------------------------------------------------------------------
+ Compute a set of only 'newcolorCt' colors that best represent an
+ image whose pixels are summarized by the histogram
+ 'colorfreqtable'. Each tuple in that table has depth 'depth'.
+ colorfreqtable.table[i] tells the number of pixels in the subject image
+ have a particular color.
+
+ As a side effect, sort 'colorfreqtable'.
+-----------------------------------------------------------------------------*/
+ struct BoxVector boxVector;
+ bool multicolorBoxesExist;
+ /* There is at least one box that contains at least 2 colors; ergo,
+ there is more splitting we can do.
+ */
+
+ boxVector = newBoxVector(colorfreqtable, newcolorCt, depth,
+ methodForLargest);
+
+ multicolorBoxesExist = (colorfreqtable.size > 1);
+
+ /* Split boxes until we have enough. */
+ while (boxVector.boxCt < newcolorCt && multicolorBoxesExist) {
+ unsigned int boxIdx;
+
+ for (boxIdx = 0;
+ boxIdx < boxVector.boxCt && boxVector.box[boxIdx].colorCt < 2;
+ ++boxIdx);
+ /* Find the first splittable box. */
+
+ if (boxIdx >= boxVector.boxCt)
+ multicolorBoxesExist = FALSE;
+ else
+ splitBox(&boxVector, boxIdx, colorfreqtable, depth,
+ methodForLargest, methodForSplit);
+ }
+ *colormapP = colormapFromBv(newcolorCt, boxVector, colorfreqtable,
+ depth, methodForRep);
+
+ destroyBoxVector(boxVector);
+}
+
+
+
+
+static void
+validateCompatibleImage(struct pam * const inpamP,
+ struct pam * const firstPamP,
+ unsigned int const imageSeq) {
+
+ if (inpamP->depth != firstPamP->depth)
+ pm_error("Image %u depth (%u) is not the same as Image 0 (%u)",
+ imageSeq, inpamP->depth, firstPamP->depth);
+ if (inpamP->maxval != firstPamP->maxval)
+ pm_error("Image %u maxval (%u) is not the same as Image 0 (%u)",
+ imageSeq,
+ (unsigned)inpamP->maxval, (unsigned)firstPamP->maxval);
+ if (inpamP->format != firstPamP->format)
+ pm_error("Image %u format (%d) is not the same as Image 0 (%d)",
+ imageSeq, inpamP->format, firstPamP->format);
+ if (!streq(inpamP->tuple_type, firstPamP->tuple_type))
+ pm_error("Image %u tuple type (%s) is not the same as Image 0 (%s)",
+ imageSeq, inpamP->tuple_type, firstPamP->tuple_type);
+}
+
+
+
+static void
+addImageColorsToHash(struct pam * const pamP,
+ tuplehash const tuplehash,
+ unsigned int * const colorCountP) {
+
+ tuple * tuplerow;
+ unsigned int row;
+
+ tuplerow = pnm_allocpamrow(pamP);
+
+ for (row = 0; row < pamP->height; ++row) {
+ unsigned int col;
+
+ pnm_readpamrow(pamP, tuplerow);
+
+ for (col = 0; col < pamP->width; ++col) {
+ int firstOccurrence;
+
+ pnm_addtuplefreqoccurrence(pamP, tuplerow[col], tuplehash,
+ &firstOccurrence);
+
+ if (firstOccurrence)
+ ++(*colorCountP);
+ }
+ }
+ pnm_freepamrow(tuplerow);
+}
+
+
+
+static void
+computeHistogram(FILE * const ifP,
+ int * const formatP,
+ struct pam * const freqPamP,
+ tupletable2 * const colorfreqtableP) {
+/*----------------------------------------------------------------------------
+ Make a histogram of the colors in the image stream in the file '*ifP'.
+
+ Return as *freqPamP a description of the tuple values in the histogram.
+ Only the fields of *freqPamP that describe individual tuples are
+ meaningful (depth, maxval, tuple type);
+
+ As a fringe benefit, also return the format of the input file as
+ *formatP.
+----------------------------------------------------------------------------*/
+ unsigned int imageSeq;
+ struct pam firstPam;
+ tuplehash tuplehash;
+ unsigned int colorCount;
+ int eof;
+
+ pm_message("making histogram...");
+
+ tuplehash = pnm_createtuplehash();
+ colorCount = 0;
+
+ eof = FALSE;
+
+ for (imageSeq = 0; !eof; ++imageSeq) {
+ struct pam inpam;
+
+ pm_message("Scanning image %u", imageSeq);
+
+ pnm_readpaminit(ifP, &inpam, PAM_STRUCT_SIZE(tuple_type));
+
+ if (imageSeq == 0)
+ firstPam = inpam;
+ else
+ validateCompatibleImage(&inpam, &firstPam, imageSeq);
+
+ addImageColorsToHash(&inpam, tuplehash, &colorCount);
+
+ pm_message("%u colors so far", colorCount);
+
+ pnm_nextimage(ifP, &eof);
+ }
+ colorfreqtableP->table =
+ pnm_tuplehashtotable(&firstPam, tuplehash, colorCount);
+ colorfreqtableP->size = colorCount;
+
+ pnm_destroytuplehash(tuplehash);
+
+ pm_message("%u colors found", colorfreqtableP->size);
+
+ freqPamP->size = sizeof(*freqPamP);
+ freqPamP->len = PAM_STRUCT_SIZE(tuple_type);
+ freqPamP->maxval = firstPam.maxval;
+ freqPamP->bytes_per_sample = pnm_bytespersample(freqPamP->maxval);
+ freqPamP->depth = firstPam.depth;
+ STRSCPY(freqPamP->tuple_type, firstPam.tuple_type);
+
+ *formatP = firstPam.format;
+}
+
+
+
+static void
+computeColorMapFromInput(FILE * const ifP,
+ bool const allColors,
+ int const reqColors,
+ enum MethodForLargest const methodForLargest,
+ enum MethodForRep const methodForRep,
+ enum MethodForSplit const methodForSplit,
+ int * const formatP,
+ struct pam * const freqPamP,
+ tupletable2 * const colormapP) {
+/*----------------------------------------------------------------------------
+ Produce a colormap containing the best colors to represent the
+ image stream in file 'ifP'. Figure it out using the median cut
+ technique.
+
+ The colormap will have 'reqcolors' or fewer colors in it, unless
+ 'allcolors' is true, in which case it will have all the colors that
+ are in the input.
+
+ The colormap has the same maxval as the input.
+
+ Put the colormap in newly allocated storage as a tupletable2
+ and return its address as *colormapP. Return the number of colors in
+ it as *colorsP and its maxval as *colormapMaxvalP.
+
+ Return the characteristics of the input file as
+ *formatP and *freqPamP. (This information is not really
+ relevant to our colormap mission; just a fringe benefit).
+-----------------------------------------------------------------------------*/
+ tupletable2 colorfreqtable;
+
+ computeHistogram(ifP, formatP, freqPamP, &colorfreqtable);
+
+ if (allColors) {
+ *colormapP = colorfreqtable;
+ } else {
+ if (colorfreqtable.size <= reqColors) {
+ pm_message("Image already has few enough colors (<=%d). "
+ "Keeping same colors.", reqColors);
+ *colormapP = colorfreqtable;
+ } else {
+ pm_message("choosing %d colors...", reqColors);
+ mediancut(colorfreqtable, freqPamP->depth,
+ reqColors, methodForLargest, methodForRep,
+ methodForSplit, colormapP);
+ pnm_freetupletable2(freqPamP, colorfreqtable);
+ }
+ }
+}
+
+
+
+static void
+sortColormap(tupletable2 const colormap,
+ sample const depth) {
+/*----------------------------------------------------------------------------
+ Sort the colormap in place, in order of ascending Plane 0 value,
+ the Plane 1 value, etc.
+
+ Use insertion sort.
+-----------------------------------------------------------------------------*/
+ int i;
+
+ pm_message("Sorting %u colors...", colormap.size);
+
+ for (i = 0; i < colormap.size; ++i) {
+ int j;
+ for (j = i+1; j < colormap.size; ++j) {
+ unsigned int plane;
+ bool iIsGreater, iIsLess;
+
+ iIsGreater = FALSE; iIsLess = FALSE;
+ for (plane = 0;
+ plane < depth && !iIsGreater && !iIsLess;
+ ++plane) {
+ if (colormap.table[i]->tuple[plane] >
+ colormap.table[j]->tuple[plane])
+ iIsGreater = TRUE;
+ else if (colormap.table[i]->tuple[plane] <
+ colormap.table[j]->tuple[plane])
+ iIsLess = TRUE;
+ }
+ if (iIsGreater) {
+ for (plane = 0; plane < depth; ++plane) {
+ sample const temp = colormap.table[i]->tuple[plane];
+ colormap.table[i]->tuple[plane] =
+ colormap.table[j]->tuple[plane];
+ colormap.table[j]->tuple[plane] = temp;
+ }
+ }
+ }
+ }
+}
+
+
+
+static void
+colormapToSquare(struct pam * const pamP,
+ tupletable2 const colormap,
+ tuple *** const outputRasterP) {
+ {
+ unsigned int const intsqrt = (int)sqrt((float)colormap.size);
+ if (SQR(intsqrt) == colormap.size)
+ pamP->width = intsqrt;
+ else
+ pamP->width = intsqrt + 1;
+ }
+ {
+ unsigned int const intQuotient = colormap.size / pamP->width;
+ if (pamP->width * intQuotient == colormap.size)
+ pamP->height = intQuotient;
+ else
+ pamP->height = intQuotient + 1;
+ }
+ {
+ tuple ** outputRaster;
+ unsigned int row;
+ unsigned int colormapIndex;
+
+ outputRaster = pnm_allocpamarray(pamP);
+
+ colormapIndex = 0; /* initial value */
+
+ for (row = 0; row < pamP->height; ++row) {
+ unsigned int col;
+ for (col = 0; col < pamP->width; ++col) {
+ unsigned int plane;
+ for (plane = 0; plane < pamP->depth; ++plane) {
+ outputRaster[row][col][plane] =
+ colormap.table[colormapIndex]->tuple[plane];
+ }
+ if (colormapIndex < colormap.size-1)
+ ++colormapIndex;
+ }
+ }
+ *outputRasterP = outputRaster;
+ }
+}
+
+
+
+static void
+colormapToSingleRow(struct pam * const pamP,
+ tupletable2 const colormap,
+ tuple *** const outputRasterP) {
+
+ tuple ** outputRaster;
+ unsigned int col;
+
+ pamP->width = colormap.size;
+ pamP->height = 1;
+
+ outputRaster = pnm_allocpamarray(pamP);
+
+ for (col = 0; col < pamP->width; ++col) {
+ int plane;
+ for (plane = 0; plane < pamP->depth; ++plane)
+ outputRaster[0][col][plane] = colormap.table[col]->tuple[plane];
+ }
+ *outputRasterP = outputRaster;
+}
+
+
+
+static void
+colormapToImage(int const format,
+ const struct pam * const colormapPamP,
+ tupletable2 const colormap,
+ bool const sort,
+ bool const square,
+ struct pam * const outpamP,
+ tuple *** const outputRasterP) {
+/*----------------------------------------------------------------------------
+ Create a tuple array and pam structure for an image which includes
+ one pixel of each of the colors in the colormap 'colormap'.
+
+ May rearrange the contents of 'colormap'.
+-----------------------------------------------------------------------------*/
+ outpamP->size = sizeof(*outpamP);
+ outpamP->len = PAM_STRUCT_SIZE(tuple_type);
+ outpamP->format = format,
+ outpamP->plainformat = FALSE;
+ outpamP->depth = colormapPamP->depth;
+ outpamP->maxval = colormapPamP->maxval;
+ outpamP->bytes_per_sample = pnm_bytespersample(outpamP->maxval);
+ STRSCPY(outpamP->tuple_type, colormapPamP->tuple_type);
+
+ if (sort)
+ sortColormap(colormap, outpamP->depth);
+
+ if (square)
+ colormapToSquare(outpamP, colormap, outputRasterP);
+ else
+ colormapToSingleRow(outpamP, colormap, outputRasterP);
+}
+
+
+
+int
+main(int argc, const char * argv[] ) {
+
+ struct CmdlineInfo cmdline;
+ FILE * ifP;
+ int format;
+ struct pam colormapPam;
+ struct pam outpam;
+ tuple ** colormapRaster;
+ tupletable2 colormap;
+
+ pm_proginit(&argc, argv);
+
+ parseCommandLine(argc, argv, &cmdline);
+
+ ifP = pm_openr(cmdline.inputFileNm);
+
+ computeColorMapFromInput(ifP,
+ cmdline.allcolors, cmdline.newcolors,
+ cmdline.methodForLargest,
+ cmdline.methodForRep,
+ cmdline.methodForSplit,
+ &format, &colormapPam, &colormap);
+
+ pm_close(ifP);
+
+ colormapToImage(format, &colormapPam, colormap,
+ cmdline.sort, cmdline.square, &outpam, &colormapRaster);
+
+ if (cmdline.verbose)
+ pm_message("Generating %u x %u image", outpam.width, outpam.height);
+
+ outpam.file = stdout;
+
+ pnm_writepam(&outpam, colormapRaster);
+
+ pnm_freetupletable2(&colormapPam, colormap);
+
+ pnm_freepamarray(colormapRaster, &outpam);
+
+ pm_close(stdout);
+
+ return 0;
+}
+
+
+
diff --git a/urt/Runput.c b/urt/Runput.c
index 3bc562a..645a376 100644
--- a/urt/Runput.c
+++ b/urt/Runput.c
@@ -202,10 +202,11 @@ RunSetup(rle_hdr * the_hdr)
if ( the_hdr->background != 0 )
{
register int i;
- register rle_pixel *background =
- (rle_pixel *)malloc( (unsigned)(the_hdr->ncolors + 1) );
- register int *bg_color;
- /*
+ register rle_pixel *background;
+ register int *bg_color;
+
+ overflow_add(the_hdr->ncolors,1);
+ background = (rle_pixel *)malloc( (unsigned)(the_hdr->ncolors + 1) ); /*
* If even number of bg color bytes, put out one more to get to
* 16 bit boundary.
*/
@@ -224,7 +225,7 @@ RunSetup(rle_hdr * the_hdr)
/* Big-endian machines are harder */
register int i, nmap = (1 << the_hdr->cmaplen) *
the_hdr->ncmap;
- register char *h_cmap = (char *)malloc( nmap * 2 );
+ register char *h_cmap = (char *)malloc2( nmap, 2 );
if ( h_cmap == NULL )
{
fprintf( stderr,
diff --git a/urt/rle.h b/urt/rle.h
index 0071774..6a905ba 100644
--- a/urt/rle.h
+++ b/urt/rle.h
@@ -152,6 +152,17 @@ rle_hdr /* End of typedef. */
*/
extern rle_hdr rle_dflt_hdr;
+/*
+ * Provided by pm library
+ */
+
+extern void overflow_add(int, int);
+#define overflow2(a,b) __overflow2(a,b)
+extern void __overflow2(int, int);
+extern void overflow3(int, int, int);
+extern void *malloc2(int, int);
+extern void *malloc3(int, int, int);
+extern void *realloc2(void *, int, int);
/* Declare RLE library routines. */
diff --git a/urt/rle.h.orig b/urt/rle.h.orig
new file mode 100644
index 0000000..59d2670
--- /dev/null
+++ b/urt/rle.h.orig
@@ -0,0 +1,470 @@
+/*
+ * This software is copyrighted as noted below. It may be freely copied,
+ * modified, and redistributed, provided that the copyright notice is
+ * preserved on all copies.
+ *
+ * There is no warranty or other guarantee of fitness for this software,
+ * it is provided solely "as is". Bug reports or fixes may be sent
+ * to the author, who may or may not act on them as he desires.
+ *
+ * You may not include this software in a program or other software product
+ * without supplying the source, or without informing the end-user that the
+ * source is available for no extra charge.
+ *
+ * If you modify this software, you should include a notice giving the
+ * name of the person performing the modification, the date of modification,
+ * and the reason for such modification.
+ */
+/*
+ * rle.h - Global declarations for Utah Raster Toolkit RLE programs.
+ *
+ * Author: Todd W. Fuqua
+ * Computer Science Dept.
+ * University of Utah
+ * Date: Sun Jul 29 1984
+ * Copyright (c) 1984 Todd W. Fuqua
+ *
+ * $Id: rle.h,v 3.0.1.5 1992/04/30 14:05:56 spencer Exp $
+ */
+
+#ifndef RLE_H
+#define RLE_H
+
+#include <stdio.h> /* Declare FILE. */
+#include <string.h>
+
+enum rle_dispatch {
+ NO_DISPATCH = -1,
+ RUN_DISPATCH = 0
+};
+
+/* ****************************************************************
+ * TAG( rle_pixel rle_map )
+ *
+ * Typedef for 8-bit (or less) pixel data.
+ *
+ * Typedef for 16-bit color map data.
+ */
+typedef unsigned char rle_pixel;
+typedef unsigned short rle_map;
+
+/*
+ * Defines for traditional channel numbers.
+ */
+#define RLE_RED 0 /* Red channel traditionally here. */
+#define RLE_GREEN 1 /* Green channel traditionally here. */
+#define RLE_BLUE 2 /* Blue channel traditionally here. */
+#define RLE_ALPHA -1 /* Alpha channel here. */
+
+/*
+ * Return values from rle_get_setup.
+ */
+#define RLE_SUCCESS 0
+#define RLE_NOT_RLE -1
+#define RLE_NO_SPACE -2
+#define RLE_EMPTY -3
+#define RLE_EOF -4
+
+/*
+ * "Magic" value for is_init field. Pi * 2^29.
+ */
+#define RLE_INIT_MAGIC 0x6487ED51L
+
+/*
+ * TAG( rle_hdr )
+ *
+ * Definition of header structure used by RLE routines.
+ */
+
+#ifndef c_plusplus
+typedef
+#endif
+ struct rle_hdr {
+ enum rle_dispatch dispatch; /* Type of file to create. */
+ int ncolors; /* Number of color channels. */
+ int * bg_color; /* Pointer to bg color vector. */
+ int alpha; /* If !0, save alpha channel. */
+ int background; /* 0->just save all pixels, */
+ /* 1->overlay, 2->clear to bg first. */
+ int xmin; /* Lower X bound (left.) */
+ int xmax; /* Upper X bound (right.) */
+ int ymin; /* Lower Y bound (bottom.) */
+ int ymax; /* Upper Y bound (top.) */
+ int ncmap; /* Number of color channels in color map. */
+ /* Map only saved if != 0. */
+ int cmaplen; /* Log2 of color map length. */
+ rle_map * cmap; /* Pointer to color map array. */
+ const char ** comments; /* Pointer to array of pointers to comments. */
+ FILE * rle_file; /* Input or output file. */
+ /*
+ * Bit map of channels to read/save. Indexed by (channel mod 256).
+ * Alpha channel sets bit 255.
+ *
+ * Indexing (0 <= c <= 255):
+ * bits[c/8] & (1 << (c%8))
+ */
+#define RLE_SET_BIT(glob,bit) \
+ ((glob).bits[((bit)&0xff)/8] |= (1<<((bit)&0x7)))
+#define RLE_CLR_BIT(glob,bit) \
+ ((glob).bits[((bit)&0xff)/8] &= ~(1<<((bit)&0x7)))
+#define RLE_BIT(glob,bit) \
+ ((glob).bits[((bit)&0xff)/8] & (1<<((bit)&0x7)))
+ char bits[256/8];
+ /* Set to magic pattern if following fields are initialized. */
+ /* This gives a 2^(-32) chance of missing. */
+ long int is_init;
+ /* Command, file name and image number for error messages. */
+ const char *cmd;
+ const char *file_name;
+ int img_num;
+ /*
+ * Local storage for rle_getrow & rle_putrow.
+ * rle_getrow has
+ * scan_y int current Y scanline.
+ * vert_skip int number of lines to skip.
+ * rle_putrow has
+ * nblank int number of blank lines.
+ * brun short(*)[2] Array of background runs.
+ * fileptr long Position in output file.
+ */
+ union {
+ struct {
+ int scan_y,
+ vert_skip;
+ char is_eof, /* Set when EOF or EofOp encountered. */
+ is_seek; /* If true, can seek input file. */
+ } get;
+ struct {
+ int nblank;
+ short (*brun)[2];
+ long fileptr;
+ } put;
+ } priv;
+ }
+#ifndef c_plusplus
+rle_hdr /* End of typedef. */
+#endif
+;
+
+/*
+ * TAG( rle_dflt_hdr )
+ *
+ * Global variable with possibly useful default values.
+ */
+extern rle_hdr rle_dflt_hdr;
+
+
+/* Declare RLE library routines. */
+
+/*****************************************************************
+ * TAG( rle_get_error )
+ *
+ * Print an error message based on the error code returned by
+ * rle_get_setup.
+ */
+extern int rle_get_error( int code,
+ const char *pgmname,
+ const char *fname );
+
+/* From rle_getrow.c */
+
+/*****************************************************************
+ * TAG( rle_debug )
+ *
+ * Turn RLE debugging on or off.
+ */
+extern void rle_debug( int on_off );
+
+int
+rle_get_setup(rle_hdr * const the_hdr);
+
+/*****************************************************************
+ * TAG( rle_get_setup_ok )
+ *
+ * Call rle_get_setup. If it returns an error code, call
+ * rle_get_error to print the error message, then exit with the error
+ * code.
+ */
+extern void rle_get_setup_ok( rle_hdr *the_hdr,
+ const char *prog_name,
+ const char *file_name);
+
+/*****************************************************************
+ * TAG( rle_getrow )
+ *
+ * Read a scanline worth of data from an RLE file.
+ */
+extern int rle_getrow( rle_hdr * the_hdr,
+ rle_pixel * scanline[] );
+
+/* From rle_getskip.c */
+
+/*****************************************************************
+ * TAG( rle_getskip )
+ * Skip a scanline, return the number of the next one.
+ */
+extern unsigned int rle_getskip( rle_hdr *the_hdr );
+
+/* From rle_hdr.c. */
+
+/*****************************************************************
+ * TAG( rle_names )
+ *
+ * Load the command and file names into the rle_hdr.
+ */
+extern void rle_names( rle_hdr *the_hdr,
+ const char *pgmname,
+ const char *fname,
+ int img_num );
+
+/*****************************************************************
+ * TAG( rle_hdr_cp )
+ *
+ * Make a "safe" copy of a rle_hdr structure.
+ */
+extern rle_hdr * rle_hdr_cp( rle_hdr *from_hdr,
+ rle_hdr *to_hdr );
+
+/*****************************************************************
+ * TAG( rle_hdr_init )
+ *
+ * Initialize a rle_hdr structure.
+ */
+extern rle_hdr * rle_hdr_init( rle_hdr *the_hdr );
+
+/*****************************************************************
+ * TAG( rle_hdr_clear )
+ *
+ */
+extern void rle_hdr_clear( rle_hdr *the_hdr );
+
+/* From rle_putrow.c. */
+
+/*****************************************************************
+ * TAG( rgb_to_bw )
+ *
+ * Converts RGB data to gray data via the NTSC Y transform.
+ */
+extern void rgb_to_bw( rle_pixel *red_row,
+ rle_pixel *green_row,
+ rle_pixel *blue_row,
+ rle_pixel *bw_row,
+ int rowlen );
+
+/*****************************************************************
+ * TAG( rle_puteof )
+ *
+ * Write an End-of-image opcode to the RLE file.
+ */
+extern void rle_puteof( rle_hdr *the_hdr );
+
+/*****************************************************************
+ * TAG( rle_putrow )
+ *
+ * Write a scanline of data to the RLE file.
+ */
+extern void rle_putrow( rle_pixel *rows[], int rowlen, rle_hdr *the_hdr );
+
+/*****************************************************************
+ * TAG( rle_put_init )
+ *
+ * Initialize header for output, but don't write it to the file.
+ */
+extern void rle_put_init( rle_hdr * the_hdr );
+
+/*****************************************************************
+ * TAG( rle_put_setup )
+ *
+ * Write header information to a new RLE image file.
+ */
+extern void rle_put_setup( rle_hdr * the_hdr );
+
+/*****************************************************************
+ * TAG( rle_skiprow )
+ *
+ * Skip nrow scanlines in the output file.
+ */
+extern void rle_skiprow( rle_hdr *the_hdr, int nrow );
+
+/* From rle_cp.c */
+/*****************************************************************
+ * TAG( rle_cp )
+ * Copy image data from input to output with minimal interpretation.
+ */
+extern void rle_cp( rle_hdr *in_hdr, rle_hdr *out_hdr );
+
+/* From rle_row_alc.c. */
+/*****************************************************************
+ * TAG( rle_row_alloc )
+ *
+ * Allocate scanline memory for use by rle_getrow.
+ */
+extern int rle_row_alloc( rle_hdr * the_hdr,
+ rle_pixel *** scanp );
+
+/*****************************************************************
+ * TAG( rle_row_free )
+ *
+ * Free the above.
+ */
+extern void rle_row_free( rle_hdr *the_hdr, rle_pixel **scanp );
+
+/* From buildmap.c. */
+/*
+ * buildmap - build a more usable colormap from data in the_hdr struct.
+ */
+extern rle_pixel **buildmap( rle_hdr *the_hdr,
+ int minmap,
+ double orig_gamma,
+ double new_gamma );
+
+/* From rle_getcom.c. */
+/*****************************************************************
+ * TAG( rle_getcom )
+ *
+ * Get a specific comment from the image comments.
+ */
+const char *
+rle_getcom(const char * const name,
+ rle_hdr * const the_hdr);
+
+/* From rle_putcom.c. */
+
+/* Delete a specific comment from the image comments. */
+const char *
+rle_delcom(const char * const name,
+ rle_hdr * const the_hdr);
+
+/* Put (or replace) a comment into the image comments. */
+const char *
+rle_putcom(const char * const value,
+ rle_hdr * const the_hdr);
+
+/* From dither.c. */
+/*****************************************************************
+ * TAG( bwdithermap )
+ * Create a color map for ordered dithering in grays.
+ */
+extern void bwdithermap( int levels, double gamma, int bwmap[],
+ int divN[256], int modN[256], int magic[16][16] );
+/*****************************************************************
+ * TAG( ditherbw )
+ * Dither a gray-scale value.
+ */
+extern int ditherbw( int x, int y, int val,
+ int divN[256], int modN[256], int magic[16][16] );
+/*****************************************************************
+ * TAG( dithergb )
+ * Dither a color value.
+ */
+extern int dithergb( int x, int y, int r, int g, int b,
+ int divN[256], int modN[256], int magic[16][16] );
+/*****************************************************************
+ * TAG( dithermap )
+ * Create a color map for ordered dithering in color.
+ */
+extern void dithermap( int levels, double gamma, int rgbmap[][3],
+ int divN[256], int modN[256], int magic[16][16] );
+/*****************************************************************
+ * TAG( make_square )
+ * Make a 16x16 magic square for ordered dithering.
+ */
+extern void make_square( double N, int divN[256], int modN[256],
+ int magic[16][16] );
+
+/* From float_to_exp.c. */
+/*****************************************************************
+ * TAG( float_to_exp )
+ * Convert a list of floating point numbers to "exp" format.
+ */
+extern void float_to_exp( int count, float * floats, rle_pixel * pixels );
+
+/* From rle_open_f.c. */
+/*****************************************************************
+ * TAG( rle_open_f )
+ *
+ * Open an input/output file with default.
+ */
+FILE *
+rle_open_f(const char * prog_name, const char * file_name,
+ const char * mode);
+
+/*****************************************************************
+ * TAG( rle_open_f_noexit )
+ *
+ * Open an input/output file with default.
+ */
+FILE *
+rle_open_f_noexit(const char * const prog_name,
+ const char * const file_name,
+ const char * const mode);
+
+/*****************************************************************
+ * TAG( rle_close_f )
+ *
+ * Close a file opened by rle_open_f. If the file is stdin or stdout,
+ * it will not be closed.
+ */
+extern void
+rle_close_f( FILE *fd );
+
+/* From colorquant.c. */
+/*****************************************************************
+ * TAG( colorquant )
+ * Compute a colormap for quantizing an image to a limited set of colors.
+ */
+extern int colorquant( rle_pixel *red, rle_pixel *green, rle_pixel *blue,
+ unsigned long pixels, rle_pixel *colormap[3],
+ int colors, int bits,
+ rle_pixel *rgbmap, int fast, int otherimages );
+
+/* From rle_addhist.c. */
+
+/* Append history information to the HISTORY comment. */
+void
+rle_addhist(char * argv[],
+ rle_hdr * const in_hdr,
+ rle_hdr * const out_hdr);
+
+/* From cmd_name.c. */
+/*****************************************************************
+ * TAG( cmd_name )
+ * Extract command name from argv.
+ */
+extern char *cmd_name( char **argv );
+
+/* From scanargs.c. */
+/*****************************************************************
+ * TAG( scanargs )
+ * Scan command argument list and parse arguments.
+ */
+extern int scanargs( int argc,
+ char **argv,
+ const char *format,
+ ... );
+
+/* From hilbert.c */
+/*****************************************************************
+ * TAG( hilbert_i2c )
+ * Convert an index into a Hilbert curve to a set of coordinates.
+ */
+extern void hilbert_c2i( int n, int m, int a[], long int *r );
+
+/*****************************************************************
+ * TAG( hilbert_c2i )
+ * Convert coordinates of a point on a Hilbert curve to its index.
+ */
+extern void hilbert_i2c( int n, int m, long int r, int a[] );
+
+/* From inv_cmap.c */
+/*****************************************************************
+ * TAG( inv_cmap )
+ * Compute an inverse colormap efficiently.
+ */
+extern void inv_cmap( int colors,
+ unsigned char *colormap[3],
+ int bits,
+ unsigned long *dist_buf,
+ unsigned char *rgbmap );
+
+#endif /* RLE_H */
diff --git a/urt/rle_addhist.c b/urt/rle_addhist.c
index b165175..e09ed94 100644
--- a/urt/rle_addhist.c
+++ b/urt/rle_addhist.c
@@ -70,13 +70,18 @@ rle_addhist(char * argv[],
return;
length = 0;
- for (i = 0; argv[i]; ++i)
+ for (i = 0; argv[i]; ++i) {
+ overflow_add(length, strlen(argv[i]));
+ overflow_add(length+1, strlen(argv[i]));
length += strlen(argv[i]) +1; /* length of each arg plus space. */
+ }
time(&temp);
timedate = ctime(&temp);
length += strlen(timedate); /* length of date and time in ASCII. */
-
+ overflow_add(strlen(padding), 4);
+ overflow_add(strlen(histoire), strlen(padding) + 4);
+ overflow_add(length, strlen(histoire) + strlen(padding) + 4);
length += strlen(padding) + 3 + strlen(histoire) + 1;
/* length of padding, "on " and length of history name plus "="*/
if (in_hdr) /* if we are interested in the old comments... */
@@ -84,8 +89,10 @@ rle_addhist(char * argv[],
else
old = NULL;
- if (old && *old)
+ if (old && *old) {
+ overflow_add(length, strlen(old));
length += strlen(old); /* add length if there. */
+ }
++length; /*Cater for the null. */
diff --git a/urt/rle_getrow.c b/urt/rle_getrow.c
index ae220f5..39010ba 100644
--- a/urt/rle_getrow.c
+++ b/urt/rle_getrow.c
@@ -164,6 +164,7 @@ rle_get_setup(rle_hdr * const the_hdr) {
char * cp;
VAXSHORT(comlen, infile); /* get comment length */
+ overflow_add(comlen, 1);
evenlen = (comlen + 1) & ~1; /* make it even */
if (evenlen) {
MALLOCARRAY(comment_buf, evenlen);
diff --git a/urt/rle_getrow.c.orig b/urt/rle_getrow.c.orig
new file mode 100644
index 0000000..ae220f5
--- /dev/null
+++ b/urt/rle_getrow.c.orig
@@ -0,0 +1,520 @@
+/*
+ * This software is copyrighted as noted below. It may be freely copied,
+ * modified, and redistributed, provided that the copyright notice is
+ * preserved on all copies.
+ *
+ * There is no warranty or other guarantee of fitness for this software,
+ * it is provided solely "as is". Bug reports or fixes may be sent
+ * to the author, who may or may not act on them as he desires.
+ *
+ * You may not include this software in a program or other software product
+ * without supplying the source, or without informing the end-user that the
+ * source is available for no extra charge.
+ *
+ * If you modify this software, you should include a notice giving the
+ * name of the person performing the modification, the date of modification,
+ * and the reason for such modification.
+ *
+ * Modified at BRL 16-May-88 by Mike Muuss to avoid Alliant STDC desire
+ * to have all "void" functions so declared.
+ */
+/*
+ * rle_getrow.c - Read an RLE file in.
+ *
+ * Author: Spencer W. Thomas
+ * Computer Science Dept.
+ * University of Utah
+ * Date: Wed Apr 10 1985
+ * Copyright (c) 1985 Spencer W. Thomas
+ *
+ * $Id: rle_getrow.c,v 3.0.1.5 1992/03/04 19:33:08 spencer Exp spencer $
+ */
+
+#include <string.h>
+#include <stdio.h>
+
+#include "netpbm/pm.h"
+#include "netpbm/mallocvar.h"
+
+#include "rle.h"
+#include "rle_code.h"
+#include "vaxshort.h"
+
+/* Read a two-byte "short" that started in VAX (LITTLE_ENDIAN) order */
+#define VAXSHORT( var, fp )\
+ { var = fgetc(fp)&0xFF; var |= (fgetc(fp)) << 8; }
+
+/* Instruction format -- first byte is opcode, second is datum. */
+
+#define OPCODE(inst) (inst[0] & ~LONG)
+#define LONGP(inst) (inst[0] & LONG)
+#define DATUM(inst) (inst[1] & 0xff) /* Make sure it's unsigned. */
+
+static int debug_f; /* If non-zero, print debug info. */
+
+int
+rle_get_setup(rle_hdr * const the_hdr) {
+/*-----------------------------------------------------------------------------
+ Read the initialization information from an RLE file.
+ Inputs:
+ the_hdr: Contains pointer to the input file.
+ Outputs:
+ the_hdr: Initialized with information from the input file.
+ Returns
+ 0 on success,
+ -1 if the file is not an RLE file,
+ -2 if malloc of the color map failed,
+ -3 if an immediate EOF is hit (empty input file)
+ -4 if an EOF is encountered reading the setup information.
+ Assumptions:
+ infile points to the "magic" number in an RLE file (usually byte 0
+ in the file).
+ Algorithm:
+ Read in the setup info and fill in the_hdr.
+---------------------------------------------------------------------------- */
+ struct XtndRsetup setup;
+ short magic;
+ FILE * infile = the_hdr->rle_file;
+ int i;
+ char * comment_buf;
+
+ /* Clear old stuff out of the header. */
+ rle_hdr_clear(the_hdr);
+ if (the_hdr->is_init != RLE_INIT_MAGIC)
+ rle_names(the_hdr, "Urt", "some file", 0);
+ ++the_hdr->img_num; /* Count images. */
+
+ VAXSHORT(magic, infile);
+ if (feof(infile))
+ return RLE_EMPTY;
+ if (magic != RLE_MAGIC)
+ return RLE_NOT_RLE;
+ fread(&setup, 1, SETUPSIZE, infile); /* assume VAX packing */
+ if (feof( infile))
+ return RLE_EOF;
+
+ /* Extract information from setup */
+ the_hdr->ncolors = setup.h_ncolors;
+ for (i = 0; i < the_hdr->ncolors; ++i)
+ RLE_SET_BIT(*the_hdr, i);
+
+ if (!(setup.h_flags & H_NO_BACKGROUND) && setup.h_ncolors > 0) {
+ rle_pixel * bg_color;
+
+ MALLOCARRAY(the_hdr->bg_color, setup.h_ncolors);
+ if (!the_hdr->bg_color)
+ pm_error("Failed to allocation array for %u background colors",
+ setup.h_ncolors);
+ MALLOCARRAY(bg_color, 1 + (setup.h_ncolors / 2) * 2);
+ if (!bg_color)
+ pm_error("Failed to allocation array for %u background colors",
+ 1+(setup.h_ncolors / 2) * 2);
+ fread((char *)bg_color, 1, 1 + (setup.h_ncolors / 2) * 2, infile);
+ for (i = 0; i < setup.h_ncolors; ++i)
+ the_hdr->bg_color[i] = bg_color[i];
+ free(bg_color);
+ } else {
+ getc(infile); /* skip filler byte */
+ the_hdr->bg_color = NULL;
+ }
+
+ if (setup.h_flags & H_NO_BACKGROUND)
+ the_hdr->background = 0;
+ else if (setup.h_flags & H_CLEARFIRST)
+ the_hdr->background = 2;
+ else
+ the_hdr->background = 1;
+ if (setup.h_flags & H_ALPHA) {
+ the_hdr->alpha = 1;
+ RLE_SET_BIT( *the_hdr, RLE_ALPHA );
+ } else
+ the_hdr->alpha = 0;
+
+ the_hdr->xmin = vax_gshort(setup.hc_xpos);
+ the_hdr->ymin = vax_gshort(setup.hc_ypos);
+ the_hdr->xmax = the_hdr->xmin + vax_gshort(setup.hc_xlen) - 1;
+ the_hdr->ymax = the_hdr->ymin + vax_gshort(setup.hc_ylen) - 1;
+
+ the_hdr->ncmap = setup.h_ncmap;
+ the_hdr->cmaplen = setup.h_cmaplen;
+ if (the_hdr->ncmap > 0) {
+ int const maplen = the_hdr->ncmap * (1 << the_hdr->cmaplen);
+
+ int i;
+ char *maptemp;
+
+ MALLOCARRAY(the_hdr->cmap, maplen);
+ MALLOCARRAY(maptemp, 2 * maplen);
+ if (the_hdr->cmap == NULL || maptemp == NULL) {
+ pm_error("Malloc failed for color map of size %d*%d "
+ "in rle_get_setup, reading '%s'",
+ the_hdr->ncmap, (1 << the_hdr->cmaplen),
+ the_hdr->file_name );
+ return RLE_NO_SPACE;
+ }
+ fread(maptemp, 2, maplen, infile);
+ for (i = 0; i < maplen; ++i)
+ the_hdr->cmap[i] = vax_gshort(&maptemp[i * 2]);
+ free(maptemp);
+ }
+
+ /* Check for comments */
+ if (setup.h_flags & H_COMMENT) {
+ short comlen, evenlen;
+ char * cp;
+
+ VAXSHORT(comlen, infile); /* get comment length */
+ evenlen = (comlen + 1) & ~1; /* make it even */
+ if (evenlen) {
+ MALLOCARRAY(comment_buf, evenlen);
+
+ if (comment_buf == NULL) {
+ pm_error("Malloc failed for comment buffer of size %d "
+ "in rle_get_setup, reading '%s'",
+ comlen, the_hdr->file_name );
+ return RLE_NO_SPACE;
+ }
+ fread(comment_buf, 1, evenlen, infile);
+ /* Count the comments */
+ for (i = 0, cp = comment_buf; cp < comment_buf + comlen; ++cp)
+ if (*cp == '\0')
+ ++i;
+ ++i; /* extra for NULL pointer at end */
+ /* Get space to put pointers to comments */
+ MALLOCARRAY(the_hdr->comments, i);
+ if (the_hdr->comments == NULL) {
+ pm_error("Malloc failed for %d comment pointers "
+ "in rle_get_setup, reading '%s'",
+ i, the_hdr->file_name );
+ return RLE_NO_SPACE;
+ }
+ /* Get pointers to the comments */
+ *the_hdr->comments = comment_buf;
+ for (i = 1, cp = comment_buf + 1;
+ cp < comment_buf + comlen;
+ ++cp)
+ if (*(cp - 1) == '\0')
+ the_hdr->comments[i++] = cp;
+ the_hdr->comments[i] = NULL;
+ } else
+ the_hdr->comments = NULL;
+ } else
+ the_hdr->comments = NULL;
+
+ /* Initialize state for rle_getrow */
+ the_hdr->priv.get.scan_y = the_hdr->ymin;
+ the_hdr->priv.get.vert_skip = 0;
+ the_hdr->priv.get.is_eof = 0;
+ the_hdr->priv.get.is_seek = ftell(infile) > 0;
+ debug_f = 0;
+
+ if (!feof(infile))
+ return RLE_SUCCESS; /* success! */
+ else {
+ the_hdr->priv.get.is_eof = 1;
+ return RLE_EOF;
+ }
+}
+
+
+
+void
+rle_get_setup_ok(rle_hdr * const the_hdr,
+ const char * const prog_name,
+ const char * const file_name) {
+/*-----------------------------------------------------------------------------
+ Read the initialization information from an RLE file.
+
+ Inputs:
+ the_hdr: Contains pointer to the input file.
+ prog_name: Program name to be printed in the error message.
+ file_name: File name to be printed in the error message.
+ If NULL, the string "stdin" is generated.
+
+ Outputs:
+ the_hdr: Initialized with information from the input file.
+ If reading the header fails, it prints an error message
+ and exits with the appropriate status code.
+ Algorithm:
+ rle_get_setup does all the work.
+---------------------------------------------------------------------------- */
+ int code;
+
+ /* Backwards compatibility: if is_init is not properly set,
+ * initialize the header.
+ */
+ if (the_hdr->is_init != RLE_INIT_MAGIC) {
+ FILE * const f = the_hdr->rle_file;
+ rle_hdr_init( the_hdr );
+ the_hdr->rle_file = f;
+ rle_names(the_hdr, prog_name, file_name, 0);
+ }
+
+ code = rle_get_error(rle_get_setup(the_hdr),
+ the_hdr->cmd, the_hdr->file_name);
+ if (code)
+ exit(code);
+}
+
+
+
+void
+rle_debug( on_off )
+ int on_off;
+{
+/*-----------------------------------------------------------------------------
+ Turn RLE debugging on or off.
+ Inputs:
+ on_off: if 0, stop debugging, else start.
+ Outputs:
+ Sets internal debug flag.
+ Assumptions:
+ [None]
+ Algorithm:
+ [None]
+---------------------------------------------------------------------------- */
+ debug_f = on_off;
+
+ /* Set line buffering on stderr. Character buffering is the default, and
+ * it is SLOOWWW for large amounts of output.
+ */
+ setvbuf(stderr, NULL, _IOLBF, 0);
+}
+
+
+
+int
+rle_getrow(rle_hdr * const the_hdr,
+ rle_pixel ** const scanline) {
+/*-----------------------------------------------------------------------------
+ Get a scanline from the input file.
+ Inputs:
+ the_hdr: Header structure containing information about
+ the input file.
+ Outputs:
+ scanline: an array of pointers to the individual color
+ scanlines. Scanline is assumed to have
+ the_hdr->ncolors pointers to arrays of rle_pixel,
+ each of which is at least the_hdr->xmax+1 long.
+ Returns the current scanline number.
+ Assumptions:
+ rle_get_setup has already been called.
+ Algorithm:
+ If a vertical skip is being executed, and clear-to-background is
+ specified (the_hdr->background is true), just set the
+ scanlines to the background color. If clear-to-background is
+ not set, just increment the scanline number and return.
+
+ Otherwise, read input until a vertical skip is encountered,
+ decoding the instructions into scanline data.
+
+ If ymax is reached (or, somehow, passed), continue reading and
+ discarding input until end of image.
+---------------------------------------------------------------------------- */
+ FILE * const infile = the_hdr->rle_file;
+
+ rle_pixel * scanc;
+
+ int scan_x; /* current X position */
+ int max_x; /* End of the scanline */
+ int channel; /* current color channel */
+ int ns; /* Number to skip */
+ int nc;
+ short word, long_data;
+ char inst[2];
+
+ scan_x = the_hdr->xmin; /* initial value */
+ max_x = the_hdr->xmax; /* initial value */
+ channel = 0; /* initial value */
+ /* Clear to background if specified */
+ if (the_hdr->background != 1) {
+ if (the_hdr->alpha && RLE_BIT( *the_hdr, -1))
+ memset((char *)scanline[-1] + the_hdr->xmin, 0,
+ the_hdr->xmax - the_hdr->xmin + 1);
+ for (nc = 0; nc < the_hdr->ncolors; ++nc) {
+ if (RLE_BIT( *the_hdr, nc)) {
+ /* Unless bg color given explicitly, use 0. */
+ if (the_hdr->background != 2 || the_hdr->bg_color[nc] == 0)
+ memset((char *)scanline[nc] + the_hdr->xmin, 0,
+ the_hdr->xmax - the_hdr->xmin + 1);
+ else
+ memset((char *)scanline[nc] + the_hdr->xmin,
+ the_hdr->bg_color[nc],
+ the_hdr->xmax - the_hdr->xmin + 1);
+ }
+ }
+ }
+
+ /* If skipping, then just return */
+ if (the_hdr->priv.get.vert_skip > 0) {
+ --the_hdr->priv.get.vert_skip;
+ ++the_hdr->priv.get.scan_y;
+ if (the_hdr->priv.get.vert_skip > 0) {
+ if (the_hdr->priv.get.scan_y >= the_hdr->ymax) {
+ int const y = the_hdr->priv.get.scan_y;
+ while (rle_getskip(the_hdr) != 32768)
+ ;
+ return y;
+ } else
+ return the_hdr->priv.get.scan_y;
+ }
+ }
+
+ /* If EOF has been encountered, return also */
+ if (the_hdr->priv.get.is_eof)
+ return ++the_hdr->priv.get.scan_y;
+
+ /* Otherwise, read and interpret instructions until a skipLines
+ instruction is encountered.
+ */
+ if (RLE_BIT(*the_hdr, channel))
+ scanc = scanline[channel] + scan_x;
+ else
+ scanc = NULL;
+ for (;;) {
+ inst[0] = getc(infile);
+ inst[1] = getc(infile);
+ if (feof(infile)) {
+ the_hdr->priv.get.is_eof = 1;
+ break; /* <--- one of the exits */
+ }
+
+ switch(OPCODE(inst)) {
+ case RSkipLinesOp:
+ if (LONGP(inst)) {
+ VAXSHORT(the_hdr->priv.get.vert_skip, infile);
+ } else
+ the_hdr->priv.get.vert_skip = DATUM(inst);
+ if (debug_f)
+ pm_message("Skip %d Lines (to %d)",
+ the_hdr->priv.get.vert_skip,
+ the_hdr->priv.get.scan_y +
+ the_hdr->priv.get.vert_skip);
+
+ break; /* need to break for() here, too */
+
+ case RSetColorOp:
+ channel = DATUM(inst); /* select color channel */
+ if (channel == 255)
+ channel = -1;
+ scan_x = the_hdr->xmin;
+ if (RLE_BIT(*the_hdr, channel))
+ scanc = scanline[channel]+scan_x;
+ if (debug_f)
+ pm_message("Set color to %d (reset x to %d)",
+ channel, scan_x );
+ break;
+
+ case RSkipPixelsOp:
+ if (LONGP(inst)) {
+ VAXSHORT(long_data, infile);
+ scan_x += long_data;
+ scanc += long_data;
+ if (debug_f)
+ pm_message("Skip %d pixels (to %d)", long_data, scan_x);
+ } else {
+ scan_x += DATUM(inst);
+ scanc += DATUM(inst);
+ if (debug_f)
+ pm_message("Skip %d pixels (to %d)", DATUM(inst), scan_x);
+ }
+ break;
+
+ case RByteDataOp:
+ if (LONGP(inst)) {
+ VAXSHORT(nc, infile);
+ } else
+ nc = DATUM(inst);
+ ++nc;
+ if (debug_f) {
+ if (RLE_BIT(*the_hdr, channel))
+ pm_message("Pixel data %d (to %d):", nc, scan_x + nc);
+ else
+ pm_message("Pixel data %d (to %d)", nc, scan_x + nc);
+ }
+ if (RLE_BIT(*the_hdr, channel)) {
+ /* Don't fill past end of scanline! */
+ if (scan_x + nc > max_x) {
+ ns = scan_x + nc - max_x - 1;
+ nc -= ns;
+ } else
+ ns = 0;
+ fread((char *)scanc, 1, nc, infile);
+ while (ns-- > 0)
+ getc(infile);
+ if (nc & 0x1)
+ getc(infile); /* throw away odd byte */
+ } else {
+ if (the_hdr->priv.get.is_seek)
+ fseek(infile, ((nc + 1) / 2) * 2, 1);
+ else {
+ int ii;
+ for (ii = ((nc + 1) / 2) * 2; ii > 0; --ii)
+ getc(infile); /* discard it */
+ }
+ }
+ scanc += nc;
+ scan_x += nc;
+ if (debug_f && RLE_BIT(*the_hdr, channel)) {
+ rle_pixel * cp;
+ for (cp = scanc - nc; nc > 0; --nc)
+ fprintf(stderr, "%02x", *cp++);
+ putc('\n', stderr);
+ }
+ break;
+
+ case RRunDataOp:
+ if (LONGP(inst)) {
+ VAXSHORT(nc, infile);
+ } else
+ nc = DATUM(inst);
+ ++nc;
+ scan_x += nc;
+
+ VAXSHORT(word, infile);
+ if (debug_f)
+ pm_message("Run length %d (to %d), data %02x",
+ nc, scan_x, word);
+ if (RLE_BIT(*the_hdr, channel)) {
+ if (scan_x > max_x) {
+ ns = scan_x - max_x - 1;
+ nc -= ns;
+ } else
+ ns = 0;
+ if (nc >= 10) { /* break point for 785, anyway */
+ memset((char *)scanc, word, nc);
+ scanc += nc;
+ } else {
+ for (nc--; nc >= 0; --nc, ++scanc)
+ *scanc = word;
+ }
+ }
+ break;
+
+ case REOFOp:
+ the_hdr->priv.get.is_eof = 1;
+ if (debug_f)
+ pm_message("End of Image");
+ break;
+
+ default:
+ pm_error("rle_getrow: Unrecognized opcode: %d, reading %s",
+ inst[0], the_hdr->file_name);
+ }
+ if (OPCODE(inst) == RSkipLinesOp || OPCODE(inst) == REOFOp)
+ break; /* <--- the other loop exit */
+ }
+
+ /* If at end, skip the rest of a malformed image. */
+ if (the_hdr->priv.get.scan_y >= the_hdr->ymax) {
+ int const y = the_hdr->priv.get.scan_y;
+ while (rle_getskip(the_hdr) != 32768 )
+ ;
+ return y;
+ }
+
+ return the_hdr->priv.get.scan_y;
+}
+
+
+
diff --git a/urt/rle_hdr.c b/urt/rle_hdr.c
index 1edb7a3..d306607 100644
--- a/urt/rle_hdr.c
+++ b/urt/rle_hdr.c
@@ -148,7 +148,7 @@ rle_hdr_cp(rle_hdr * const fromHdrP,
if (toHdrP->cmap) {
size_t const size =
toHdrP->ncmap * (1 << toHdrP->cmaplen) * sizeof(rle_map);
- toHdrP->cmap = malloc(size);
+ toHdrP->cmap = malloc3(toHdrP->ncmap, 1<<toHdrP->cmaplen, sizeof(rle_map));
if (!toHdrP->cmap)
pm_error("Failed to allocate memory for %u color maps "
"of length %u", toHdrP->ncmap, 1 << toHdrP->cmaplen);
@@ -164,11 +164,16 @@ rle_hdr_cp(rle_hdr * const fromHdrP,
/* Count the comments. */
for (cp = toHdrP->comments, size = 0; *cp; ++cp)
+ {
+ overflow_add(size,1);
++size;
+ }
/* Check if there are really any comments. */
if (size > 0) {
+ overflow_add(size,1);
++size; /* Copy the NULL pointer, too. */
+ overflow2(size, sizeof(char *));
size *= sizeof(char *);
toHdrP->comments = malloc(size);
if (!toHdrP->comments)
diff --git a/urt/rle_hdr.c.orig b/urt/rle_hdr.c.orig
new file mode 100644
index 0000000..1edb7a3
--- /dev/null
+++ b/urt/rle_hdr.c.orig
@@ -0,0 +1,286 @@
+/*
+ * This software is copyrighted as noted below. It may be freely copied,
+ * modified, and redistributed, provided that the copyright notice is
+ * preserved on all copies.
+ *
+ * There is no warranty or other guarantee of fitness for this software,
+ * it is provided solely "as is". Bug reports or fixes may be sent
+ * to the author, who may or may not act on them as he desires.
+ *
+ * You may not include this software in a program or other software product
+ * without supplying the source, or without informing the end-user that the
+ * source is available for no extra charge.
+ *
+ * If you modify this software, you should include a notice giving the
+ * name of the person performing the modification, the date of modification,
+ * and the reason for such modification.
+ */
+/*
+ * rle_hdr.c - Functions to manipulate rle_hdr structures.
+ *
+ * Author: Spencer W. Thomas
+ * EECS Dept.
+ * University of Michigan
+ * Date: Mon May 20 1991
+ * Copyright (c) 1991, University of Michigan
+ */
+
+#include <string.h>
+
+#include "nstring.h"
+#include "mallocvar.h"
+
+#include "rle_config.h"
+#include "rle.h"
+
+
+
+void
+rle_names(rle_hdr * const hdrP,
+ const char * const pgmname,
+ const char * const fname,
+ int const imgNum) {
+/*----------------------------------------------------------------------------
+ * Load program and file names into header.
+ * Inputs:
+ * hdrP: Header to modify.
+ * pgmname: The program name.
+ * fname: The file name.
+ * imgNum: Number of the image within the file.
+ * Outputs:
+ * *hdrP: Modified header.
+-----------------------------------------------------------------------------*/
+
+ /* Algorithm:
+ If values previously filled in (by testing is_init field),
+ free them. Make copies of file name and program name,
+ modifying file name for standard i/o. Set is_init field.
+ */
+ const char * newFname;
+ const char * newPgmname;
+
+ /* Mark as filled in. */
+ hdrP->is_init = RLE_INIT_MAGIC;
+
+ /* Default file name for stdin/stdout. */
+ if (!fname || streq(fname, "-") || strlen(fname) == 0)
+ newFname = "Standard I/O";
+ else
+ newFname = fname;
+
+ if (pgmname)
+ newPgmname = pgmname;
+ else
+ newPgmname = rle_dflt_hdr.cmd;
+
+ /* Fill in with copies of the strings. */
+ if (hdrP->cmd != newPgmname)
+ hdrP->cmd = pm_strdup(newPgmname);
+
+ if (hdrP->file_name != newFname)
+ hdrP->cmd = pm_strdup(newFname);
+
+ hdrP->img_num = imgNum;
+}
+
+
+
+/* Used by rle_hdr_cp and rle_hdr_init to avoid recursion loops. */
+static int noRecurse = 0;
+
+
+
+rle_hdr *
+rle_hdr_cp(rle_hdr * const fromHdrP,
+ rle_hdr * const toHdrArgP) {
+/*----------------------------------------------------------------------------
+ * Make a "safe" copy of a rle_hdr structure.
+ * Inputs:
+ * *fromHdrP: Header to be copied.
+ * Outputs:
+ * *toHdrPd: Copy of from_hdr, with all memory referred to
+ * by pointers copied. Also returned as function
+ * value. If NULL, a static header is used.
+ * Assumptions:
+ * It is safe to call rle_hdr_init on *toHdrP.
+-----------------------------------------------------------------------------*/
+ /* Algorithm:
+ Initialize *toHdrP, copy *fromHdrP to it, then copy the memory
+ referred to by all non-null pointers.
+ */
+ static rle_hdr dfltHdr;
+ rle_hdr * toHdrP;
+ const char * cmd;
+ const char * file;
+ unsigned int num;
+
+ /* Save command, file name, and image number if already initialized. */
+ if (toHdrArgP && toHdrArgP->is_init == RLE_INIT_MAGIC) {
+ cmd = toHdrArgP->cmd;
+ file = toHdrArgP->file_name;
+ num = toHdrArgP->img_num;
+ } else {
+ cmd = file = NULL;
+ num = 0;
+ }
+
+ if (!noRecurse) {
+ ++noRecurse;
+ rle_hdr_init(toHdrArgP);
+ --noRecurse;
+ }
+
+ toHdrP = toHdrArgP ? toHdrArgP : &dfltHdr;
+
+ *toHdrP = *fromHdrP;
+
+ if (toHdrP->bg_color) {
+ unsigned int i;
+
+ MALLOCARRAY(toHdrP->bg_color, toHdrP->ncolors);
+ if (!toHdrP->bg_color)
+ pm_error("Failed to allocate array for %u background colors",
+ toHdrP->ncolors);
+ for (i = 0; i < toHdrP->ncolors; ++i)
+ toHdrP->bg_color[i] = fromHdrP->bg_color[i];
+ }
+
+ if (toHdrP->cmap) {
+ size_t const size =
+ toHdrP->ncmap * (1 << toHdrP->cmaplen) * sizeof(rle_map);
+ toHdrP->cmap = malloc(size);
+ if (!toHdrP->cmap)
+ pm_error("Failed to allocate memory for %u color maps "
+ "of length %u", toHdrP->ncmap, 1 << toHdrP->cmaplen);
+ memcpy(toHdrP->cmap, fromHdrP->cmap, size);
+ }
+
+ /* Only copy array of pointers, as the original comment memory
+ * never gets overwritten.
+ */
+ if (toHdrP->comments) {
+ unsigned int size;
+ const char ** cp;
+
+ /* Count the comments. */
+ for (cp = toHdrP->comments, size = 0; *cp; ++cp)
+ ++size;
+
+ /* Check if there are really any comments. */
+ if (size > 0) {
+ ++size; /* Copy the NULL pointer, too. */
+ size *= sizeof(char *);
+ toHdrP->comments = malloc(size);
+ if (!toHdrP->comments)
+ pm_error("Failed to allocation %u bytes for comments", size);
+ memcpy(toHdrP->comments, fromHdrP->comments, size);
+ } else
+ toHdrP->comments = NULL; /* Blow off empty comment list. */
+ }
+
+ /* Restore the names to their original values. */
+ toHdrP->cmd = cmd;
+ toHdrP->file_name = file;
+
+ /* Lines above mean nothing much happens if cmd and file are != NULL. */
+ rle_names(toHdrP, toHdrP->cmd, toHdrP->file_name, num);
+
+ return toHdrP;
+}
+
+
+
+void
+rle_hdr_clear(rle_hdr * const hdrP) {
+/*----------------------------------------------------------------------------
+ * Clear out the allocated memory pieces of a header.
+ *
+ * This routine is intended to be used internally by the library, to
+ * clear a header before putting new data into it. It clears all the
+ * fields that would be set by reading in a new image header.
+ * Therefore, it does not clear the program and file names.
+ *
+ * Inputs:
+ * hdrP: To be cleared.
+ * Outputs:
+ * *hdrP: After clearing.
+ * Assumptions:
+ * If is_init field is RLE_INIT_MAGIC, the header has been
+ * properly initialized. This will fail every 2^(-32) times, on
+ * average.
+-----------------------------------------------------------------------------*/
+ /* Algorithm:
+ Free memory and set to zero all pointers, except program and
+ file name.
+ */
+
+ /* Try to free memory. Assume if is_init is properly set that this
+ * header has been previously initialized, therefore it is safe to
+ * free memory.
+ */
+ if (hdrP && hdrP->is_init == RLE_INIT_MAGIC) {
+ if (hdrP->bg_color )
+ free(hdrP->bg_color);
+ hdrP->bg_color = NULL;
+ if (hdrP->cmap )
+ free(hdrP->cmap);
+ hdrP->cmap = NULL;
+ /* Unfortunately, we don't know how to free the comment memory. */
+ if (hdrP->comments)
+ free(hdrP->comments);
+ hdrP->comments = NULL;
+ }
+}
+
+
+
+rle_hdr *
+rle_hdr_init(rle_hdr * const hdrP) {
+/*----------------------------------------------------------------------------
+ * Initialize a rle_hdr structure.
+ * Inputs:
+ * hdrP: Header to be initialized.
+ * Outputs:
+ * *hdrP: Initialized header.
+ * Assumptions:
+ * If hdrP->is_init is RLE_INIT_MAGIC, the header has been
+ * previously initialized.
+ * If the_hdr is a copy of another rle_hdr structure, the copy
+ * was made with rle_hdr_cp.
+-----------------------------------------------------------------------------*/
+ /* Algorithm:
+ Fill in fields of rle_dflt_hdr that could not be set by the loader
+ If the_hdr is rle_dflt_hdr, do nothing else
+ Else:
+ If hdrP is NULL, return a copy of rle_dflt_hdr in static storage
+ If hdrP->is_init is RLE_INIT_MAGIC, free all memory
+ pointed to by non-null pointers.
+ If this is a recursive call to rle_hdr_init, clear *hdrP and
+ return hdrP.
+ Else make a copy of rle_dflt_hdr and return its address. Make the
+ copy in static storage if hdrP is NULL, and in *hdrP otherwise.
+ */
+ rle_hdr * retval;
+
+ rle_dflt_hdr.rle_file = stdout;
+
+ /* The rest of rle_dflt_hdr is set by the loader's data initialization */
+
+ if (hdrP == &rle_dflt_hdr)
+ retval = hdrP;
+ else {
+ rle_hdr_clear(hdrP);
+
+ /* Call rle_hdr_cp only if not called from there. */
+ if (!noRecurse) {
+ ++noRecurse;
+ retval = rle_hdr_cp(&rle_dflt_hdr, hdrP);
+ --noRecurse;
+ } else
+ retval = hdrP;
+ }
+ return retval;
+}
+
+
+
diff --git a/urt/rle_hdr.c.rej b/urt/rle_hdr.c.rej
new file mode 100644
index 0000000..62f2fb0
--- /dev/null
+++ b/urt/rle_hdr.c.rej
@@ -0,0 +1,63 @@
+--- urt/rle_hdr.c
++++ urt/rle_hdr.c
+@@ -80,7 +80,10 @@ int img_num;
+ /* Fill in with copies of the strings. */
+ if ( the_hdr->cmd != pgmname )
+ {
+- char *tmp = (char *)malloc( strlen( pgmname ) + 1 );
++ char *tmp;
++
++ overflow_add(strlen(pgmname), 1);
++ tmp = malloc( strlen(pgmname) + 1 );
+ RLE_CHECK_ALLOC( pgmname, tmp, 0 );
+ strcpy( tmp, pgmname );
+ the_hdr->cmd = tmp;
+@@ -88,8 +91,10 @@ int img_num;
+
+ if ( the_hdr->file_name != fname )
+ {
+- char *tmp = (char *)malloc( strlen( fname ) + 1 );
+- RLE_CHECK_ALLOC( pgmname, tmp, 0 );
++ char *tmp;
++ overflow_add(strlen(fname), 1);
++ tmp = malloc( strlen( fname ) + 1 );
++ RLE_CHECK_ALLOC( pgmname, tmp, 0 );
+ strcpy( tmp, fname );
+ the_hdr->file_name = tmp;
+ }
+@@ -153,6 +158,7 @@ rle_hdr *from_hdr, *to_hdr;
+ if ( to_hdr->bg_color )
+ {
+ int size = to_hdr->ncolors * sizeof(int);
++ overflow2(to_hdr->ncolors, sizeof(int));
+ to_hdr->bg_color = (int *)malloc( size );
+ RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->bg_color, "background color" );
+ memcpy( to_hdr->bg_color, from_hdr->bg_color, size );
+@@ -161,7 +167,7 @@ rle_hdr *from_hdr, *to_hdr;
+ if ( to_hdr->cmap )
+ {
+ int size = to_hdr->ncmap * (1 << to_hdr->cmaplen) * sizeof(rle_map);
+- to_hdr->cmap = (rle_map *)malloc( size );
++ to_hdr->cmap = (rle_map *)malloc3( to_hdr->ncmap, 1<<to_hdr->cmaplen, sizeof(rle_map));
+ RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->cmap, "color map" );
+ memcpy( to_hdr->cmap, from_hdr->cmap, size );
+ }
+@@ -173,12 +179,17 @@ rle_hdr *from_hdr, *to_hdr;
+ {
+ int size = 0;
+ CONST_DECL char **cp;
+- for ( cp=to_hdr->comments; *cp; cp++ )
++ for ( cp=to_hdr->comments; *cp; cp++ )
++ {
++ overflow_add(size, 1);
+ size++; /* Count the comments. */
++ }
+ /* Check if there are really any comments. */
+ if ( size )
+ {
++ overflow_add(size, 1);
+ size++; /* Copy the NULL pointer, too. */
++ overflow2(size, sizeof(char *));
+ size *= sizeof(char *);
+ to_hdr->comments = (CONST_DECL char **)malloc( size );
+ RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->comments, "comments" );
diff --git a/urt/rle_open_f.c b/urt/rle_open_f.c
index ae8548b..c2ef37d 100644
--- a/urt/rle_open_f.c
+++ b/urt/rle_open_f.c
@@ -163,65 +163,7 @@ dealWithSubprocess(const char * const file_name,
FILE ** const fpP,
bool * const noSubprocessP,
const char ** const errorP) {
-
-#ifdef NO_OPEN_PIPES
*noSubprocessP = TRUE;
-#else
- const char *cp;
-
- reapChildren(catchingChildrenP, pids);
-
- /* Real file, not stdin or stdout. If name ends in ".Z",
- * pipe from/to un/compress (depending on r/w mode).
- *
- * If it starts with "|", popen that command.
- */
-
- cp = file_name + strlen(file_name) - 2;
- /* Pipe case. */
- if (file_name[0] == '|') {
- pid_t thepid; /* PID from my_popen */
-
- *noSubprocessP = FALSE;
-
- *fpP = my_popen(file_name + 1, mode, &thepid);
- if (*fpP == NULL)
- *errorP = "%s: can't invoke <<%s>> for %s: ";
- else {
- /* One more child to catch, eventually. */
- if (*catchingChildrenP < MAX_CHILDREN)
- pids[(*catchingChildrenP)++] = thepid;
- }
- } else if (cp > file_name && *cp == '.' && *(cp + 1) == 'Z' ) {
- /* Compress case. */
- pid_t thepid; /* PID from my_popen. */
- const char * command;
-
- *noSubprocessP = FALSE;
-
- if (*mode == 'w')
- pm_asprintf(&command, "compress > %s", file_name);
- else if (*mode == 'a')
- pm_asprintf(&command, "compress >> %s", file_name);
- else
- pm_asprintf(&command, "compress -d < %s", file_name);
-
- *fpP = my_popen(command, mode, &thepid);
-
- if (*fpP == NULL)
- *errorP = "%s: can't invoke 'compress' program, "
- "trying to open %s for %s";
- else {
- /* One more child to catch, eventually. */
- if (*catchingChildrenP < MAX_CHILDREN)
- pids[(*catchingChildrenP)++] = thepid;
- }
- pm_strfree(command);
- } else {
- *noSubprocessP = TRUE;
- *errorP = NULL;
- }
-#endif
}
diff --git a/urt/rle_putcom.c b/urt/rle_putcom.c
index ab2eb20..ce83615 100644
--- a/urt/rle_putcom.c
+++ b/urt/rle_putcom.c
@@ -98,12 +98,14 @@ rle_putcom(const char * const value,
const char * v;
const char ** old_comments;
int i;
- for (i = 2, cp = the_hdr->comments; *cp != NULL; ++i, ++cp)
+ for (i = 2, cp = the_hdr->comments; *cp != NULL; ++i, ++cp) {
+ overflow_add(i, 1);
if (match(value, *cp) != NULL) {
v = *cp;
*cp = value;
return v;
}
+ }
/* Not found */
/* Can't realloc because somebody else might be pointing to this
* comments block. Of course, if this were true, then the
diff --git a/urt/scanargs.c b/urt/scanargs.c
index f3af334..5e114bb 100644
--- a/urt/scanargs.c
+++ b/urt/scanargs.c
@@ -62,9 +62,8 @@ typedef int *ptr;
/*
* Storage allocation macros
*/
-#define NEW( type, cnt ) (type *) malloc( (cnt) * sizeof( type ) )
-#define RENEW( type, ptr, cnt ) (type *) realloc( ptr, (cnt) * sizeof( type ) )
-
+#define NEW( type, cnt ) (type *) malloc2( (cnt) , sizeof( type ) )
+#define RENEW( type, ptr, cnt ) (type *) realloc2( ptr, (cnt), sizeof( type ) )
static CONST_DECL char * prformat( CONST_DECL char *, int );
static int isnum( CONST_DECL char *, int, int );
static int _do_scanargs( int argc, char **argv, CONST_DECL char *format,
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