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ghostscript/ghostscript-cve-2020-16291.patch

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diff --git a/contrib/gdevdj9.c b/contrib/gdevdj9.c
index eec1c77..a4e8e9c 100644
--- a/contrib/gdevdj9.c
+++ b/contrib/gdevdj9.c
@@ -575,26 +575,55 @@ static int cdj_set_bpp(gx_device *, int, int);
static int
hp_colour_open(gx_device * pdev)
{
- int retCode;
+ int retCode = 0;
+
+ /* Change the margins if necessary. */
+ static const float dj_a4[4] = {
+ DESKJET_MARGINS_A4
+ };
+
+ static const float dj_letter[4] = {
+ DESKJET_MARGINS_LETTER
+ };
+ const float *m = (float *)0;
cdj970->PageCtr = 0;
+ /* quality setup */
+ if (cdj970->quality == DRAFT) {
+ gx_device_set_resolution((gx_device *) pdev, 300.0, 300.0);
+ cdj970->xscal = 0;
+ cdj970->yscal = 0;
+ cdj970->intensities = 2;
+ } else if (cdj970->quality == NORMAL) {
+ gx_device_set_resolution((gx_device *) pdev, 600.0, 600.0);
+ cdj970->xscal = 1;
+ cdj970->yscal = 1;
+ /* intensities = 4 from initialization */
+ } else { /* quality == PRESENTATION */
+ gx_device_set_resolution((gx_device *) pdev, 600.0, 600.0);
+ cdj970->xscal = 0;
+ cdj970->yscal = 0;
+ /* intensities = 4 from initialization */
+ }
+
+ m = (gdev_pcl_paper_size((gx_device *) pdev) ==
+ PAPER_SIZE_A4 ? dj_a4 : dj_letter);
+
+ gx_device_set_margins((gx_device *) pdev, m, true);
+
/* Set up colour params if put_params has not already done so */
if (pdev->color_info.num_components == 0) {
- int code = cdj_set_bpp(pdev, pdev->color_info.depth,
+ retCode = cdj_set_bpp(pdev, pdev->color_info.depth,
pdev->color_info.num_components);
- if (code < 0)
- return code;
+ if (retCode < 0)
+ return retCode;
}
retCode = gdev_prn_open(pdev);
- if (retCode < 0)
- return (retCode);
- else {
+ if (retCode >= 0) {
retCode = gdev_prn_open_printer(pdev, true);
- if (retCode < 0)
- return (retCode);
}
return 0;
@@ -648,26 +677,25 @@ cdj970_put_params(gx_device * pdev, gs_param_list * plist)
int bpp = 0;
int code = 0;
- code = cdj_put_param_int(plist, "BitsPerPixel", &bpp, 1, 32, code);
- code = cdj_put_param_int(plist, "Quality", &quality, 0, 2, code);
- code = cdj_put_param_int(plist, "Papertype", &papertype, 0, 4, code);
- code = cdj_put_param_int(plist, "Duplex", &duplex, 0, 2, code);
- code =
- cdj_put_param_float(plist, "MasterGamma", &mastergamma, 0.1, 9.0,
- code);
- code =
- cdj_put_param_float(plist, "GammaValC", &gammavalc, 0.0, 9.0, code);
- code =
- cdj_put_param_float(plist, "GammaValM", &gammavalm, 0.0, 9.0, code);
- code =
- cdj_put_param_float(plist, "GammaValY", &gammavaly, 0.0, 9.0, code);
- code =
- cdj_put_param_float(plist, "GammaValK", &gammavalk, 0.0, 9.0, code);
- code =
- cdj_put_param_float(plist, "BlackCorrect", &blackcorrect, 0.0, 9.0,
- code);
-
- if (code < 0)
+ if ((code = cdj_put_param_int(plist, "BitsPerPixel", &bpp, 1, 32, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_int(plist, "Quality", &quality, 0, 2, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_int(plist, "Papertype", &papertype, 0, 4, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_int(plist, "Duplex", &duplex, 0, 2, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_float(plist, "MasterGamma", &mastergamma, 0.1, 9.0, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_float(plist, "GammaValC", &gammavalc, 0.0, 9.0, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_float(plist, "GammaValM", &gammavalm, 0.0, 9.0, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_float(plist, "GammaValY", &gammavaly, 0.0, 9.0, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_float(plist, "GammaValK", &gammavalk, 0.0, 9.0, code)) < 0)
+ return code;
+ if ((code = cdj_put_param_float(plist, "BlackCorrect", &blackcorrect, 0.0, 9.0, code)) < 0)
return code;
code = cdj_put_param_bpp(pdev, plist, bpp, bpp, 0);
@@ -676,6 +704,12 @@ cdj970_put_params(gx_device * pdev, gs_param_list * plist)
return code;
cdj970->quality = quality;
+ if (cdj970->quality != quality) {
+ if (pdev->is_open)
+ gs_closedevice(pdev); /* quality can change resolution, force re-open */
+ cdj970->quality = quality;
+ }
+
cdj970->papertype = papertype;
cdj970->duplex = duplex;
cdj970->mastergamma = mastergamma;
@@ -685,7 +719,7 @@ cdj970_put_params(gx_device * pdev, gs_param_list * plist)
cdj970->gammavalk = gammavalk;
cdj970->blackcorrect = blackcorrect;
- return 0;
+ return code;
}
/**********************************************************************************/
@@ -784,47 +818,6 @@ cdj970_terminate_page(gx_device_printer * pdev, FILE * prn_stream)
fputs("\033*rC\f\033&l-2H", prn_stream); /* End Graphics, Reset */
}
-/* cdj970_one_time_initialisation:
-----------------------------------------------------------------------------------*/
-static void
-cdj970_one_time_initialisation(gx_device_printer * pdev)
-{
- /* Change the margins if necessary. */
- static const float dj_a4[4] = {
- DESKJET_MARGINS_A4
- };
-
- static const float dj_letter[4] = {
- DESKJET_MARGINS_LETTER
- };
- const float *m = (float *)0;
-
- /* quality setup */
- if (cdj970->quality == DRAFT) {
- gx_device_set_resolution((gx_device *) pdev, 300.0, 300.0);
- cdj970->xscal = 0;
- cdj970->yscal = 0;
- cdj970->intensities = 2;
- } else if (cdj970->quality == NORMAL) {
- gx_device_set_resolution((gx_device *) pdev, 600.0, 600.0);
- cdj970->xscal = 1;
- cdj970->yscal = 1;
- /* intensities = 4 from initialization */
- } else { /* quality == PRESENTATION */
- gx_device_set_resolution((gx_device *) pdev, 600.0, 600.0);
- cdj970->xscal = 0;
- cdj970->yscal = 0;
- /* intensities = 4 from initialization */
- }
-
- m = (gdev_pcl_paper_size((gx_device *) pdev) ==
- PAPER_SIZE_A4 ? dj_a4 : dj_letter);
-
- gx_device_set_margins((gx_device *) pdev, m, true);
-
- cdj970_write_header((gx_device *) pdev, pdev->file);
-}
-
/* cdj970_print_page: Here comes the hp970 output routine
----------------------------------------------------------------------------------*/
static int
@@ -837,7 +830,7 @@ cdj970_print_page(gx_device_printer * pdev, FILE * prn_stream)
Gamma gamma;
if (cdj970->PageCtr == 0 && cdj970->ptype == DJ970C) {
- cdj970_one_time_initialisation(pdev);
+ cdj970_write_header((gx_device *)pdev, prn_stream);
}
/* make a local writable copy of the Gamma tables */
@@ -2280,6 +2273,11 @@ cdj_set_bpp(gx_device * pdev, int bpp, int ccomps)
ci->dither_colors = (bpp >= 8 ? 5 : bpp > 1 ? 2 : 0);
}
+ if (ci->depth != ((bpp > 1) && (bpp < 8) ? 8 : bpp)) {
+ if (pdev->is_open)
+ gs_closedevice(pdev); /* depth changed, make sure we re-open */
+ }
+
ci->depth = ((bpp > 1) && (bpp < 8) ? 8 : bpp);
return (0);
@@ -2598,16 +2596,15 @@ cdj_put_param_bpp(gx_device * pdev,
gs_param_list * plist,
int new_bpp, int real_bpp, int ccomps)
{
- if (new_bpp == 0 && ccomps == 0)
- return gdev_prn_put_params(pdev, plist);
- else {
- gx_device_color_info save_info;
- int save_bpp;
- int code;
-
- save_info = pdev->color_info;
- save_bpp = save_info.depth;
+ int code = 0;
+ int save_bpp;
+ gx_device_color_info save_info;
+ save_info = pdev->color_info;
+ save_bpp = save_info.depth;
+ if (new_bpp == 0 && ccomps == 0) {
+ code = gdev_prn_put_params(pdev, plist);
+ } else {
if (save_bpp == 8 && save_ccomps == 3 && !cprn_device->cmyk)
save_bpp = 3;
@@ -2631,12 +2628,22 @@ cdj_put_param_bpp(gx_device * pdev,
if ((cdj970->color_info.depth != save_bpp
|| (ccomps != 0 && ccomps != save_ccomps))
&& pdev->is_open)
- return (gs_closedevice(pdev));
+ gs_closedevice(pdev);
+ }
+
+ /* check for valid resolutions */
+ if (pdev->HWResolution[0] != pdev->HWResolution[1] ||
+ (pdev->HWResolution[0] != 300.0 && pdev->HWResolution[0] != 600.0) ) {
+ param_signal_error(plist, "HWResolution", gs_error_rangecheck);
+ emprintf1(pdev->memory, "\ncdj970: Invalid resolution: '%f'. Only 300 or 600 supported.\n\n",
+ pdev->HWResolution[0]);
+ cdj_set_bpp(pdev, save_bpp, save_ccomps);
+ return gs_error_rangecheck;
+ }
+ return code;
- return (0);
#undef save_ccomps
- }
}
/* cdj970_write_header:
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