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face86620a
dosfstools/dosfstools-2.11-label.patch
Jeremy Katz face86620a - add dosfslabel (originally by Peter Jones)
2007-04-03 19:15:09 +00:00

299 lines
8.5 KiB
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--- dosfstools-2.11/dosfsck/Makefile.label 1999-07-06 10:23:11.000000000 -0400
+++ dosfstools-2.11/dosfsck/Makefile 2007-01-11 16:33:54.000000000 -0500
@@ -1,9 +1,12 @@
-OBJECTS = boot.o check.o common.o dosfsck.o fat.o file.o io.o lfn.o
+OBJECTS = boot.o check.o common.o fat.o file.o io.o lfn.o
-all: dosfsck
+all: dosfsck dosfslabel
-dosfsck: $(OBJECTS)
+dosfsck: $(OBJECTS) dosfsck.o
+ $(CC) -o $@ $(LDFLAGS) $^
+
+dosfslabel : $(OBJECTS) dosfslabel.o
$(CC) -o $@ $(LDFLAGS) $^
.c.o:
@@ -15,8 +18,10 @@
install -m 644 dosfsck.8 $(MANDIR)
rm -f $(SBINDIR)/fsck.msdos
rm -f $(SBINDIR)/fsck.vfat
+ rm -f $(SBINDIR)/dosfslabel
ln -s dosfsck $(SBINDIR)/fsck.msdos
ln -s dosfsck $(SBINDIR)/fsck.vfat
+ ln -s dosfslabel $(SBINDIR)/dosfslabel
rm -f $(MANDIR)/fsck.msdos.8
ln -s dosfsck.8 $(MANDIR)/fsck.msdos.8
ln -s dosfsck.8 $(MANDIR)/fsck.vfat.8
@@ -25,7 +30,7 @@
rm -f *.o *.s *.i *~ \#*# tmp_make .#* .new*
distclean: clean
- rm -f *.a dosfsck
+ rm -f *.a dosfsck dosfslabel
dep:
sed '/\#\#\# Dependencies/q' <Makefile >tmp_make
@@ -38,6 +43,7 @@
common.o: common.c common.h
dosfsck.o: dosfsck.c common.h dosfsck.h io.h boot.h fat.h file.h \
check.h
+dosfslabel.o: dosfslabel.c common.h dosfsck.h io.h boot.h fat.h file.h check.h
fat.o: fat.c common.h dosfsck.h io.h check.h fat.h
file.o: file.c common.h file.h
io.o: io.c dosfsck.h common.h io.h
--- dosfstools-2.11/dosfsck/dosfsck.h.label 2007-01-11 16:33:54.000000000 -0500
+++ dosfstools-2.11/dosfsck/dosfsck.h 2007-01-11 16:33:54.000000000 -0500
@@ -65,10 +65,47 @@
__u32 root_cluster; /* first cluster in root directory */
__u16 info_sector; /* filesystem info sector */
__u16 backup_boot; /* backup boot sector */
- __u16 reserved2[6]; /* Unused */
+ __u8 reserved2[12]; /* Unused */
+
+ __u8 drive_number; /* Logical Drive Number */
+ __u8 reserved3; /* Unused */
+
+ __u8 extended_sig; /* Extended Signature (0x29) */
+ __u32 serial; /* Serial number */
+ __u8 label[11]; /* FS label */
+ __u8 fs_type[8]; /* FS Type */
+
+ /* fill up to 512 bytes */
+ __u8 junk[422];
+} __attribute__ ((packed));
+
+struct boot_sector_16 {
+ __u8 ignored[3]; /* Boot strap short or near jump */
+ __u8 system_id[8]; /* Name - can be used to special case
+ partition manager volumes */
+ __u8 sector_size[2]; /* bytes per logical sector */
+ __u8 cluster_size; /* sectors/cluster */
+ __u16 reserved; /* reserved sectors */
+ __u8 fats; /* number of FATs */
+ __u8 dir_entries[2]; /* root directory entries */
+ __u8 sectors[2]; /* number of sectors */
+ __u8 media; /* media code (unused) */
+ __u16 fat_length; /* sectors/FAT */
+ __u16 secs_track; /* sectors per track */
+ __u16 heads; /* number of heads */
+ __u32 hidden; /* hidden sectors (unused) */
+ __u32 total_sect; /* number of sectors (if sectors == 0) */
+
+ __u8 drive_number; /* Logical Drive Number */
+ __u8 reserved2; /* Unused */
+
+ __u8 extended_sig; /* Extended Signature (0x29) */
+ __u32 serial; /* Serial number */
+ __u8 label[11]; /* FS label */
+ __u8 fs_type[8]; /* FS Type */
/* fill up to 512 bytes */
- __u8 junk[448];
+ __u8 junk[450];
} __attribute__ ((packed));
struct info_sector {
@@ -128,6 +165,7 @@
long free_clusters;
loff_t backupboot_start; /* 0 if not present */
FAT_ENTRY *fat;
+ char *label;
} DOS_FS;
#ifndef offsetof
--- /dev/null 2006-12-18 18:52:37.519428789 -0500
+++ dosfstools-2.11/dosfsck/dosfslabel.c 2007-01-11 16:35:00.000000000 -0500
@@ -0,0 +1,110 @@
+/* dosfslabel.c - User interface */
+
+/* Copyright 2007 Red Hat, Inc.
+ * Portions copyright 1998 Roman Hodek.
+ * Portions copyright 1993 Werner Almesberger.
+ */
+
+#include "../version.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "common.h"
+#include "dosfsck.h"
+#include "io.h"
+#include "boot.h"
+#include "fat.h"
+#include "file.h"
+#include "check.h"
+
+
+int interactive = 0,list = 0,test = 0,verbose = 0,write_immed = 0;
+int atari_format = 0;
+unsigned n_files = 0;
+void *mem_queue = NULL;
+
+
+static void usage(int error)
+{
+ FILE *f = error ? stderr : stdout;
+ int status = error ? 1 : 0;
+
+ fprintf(f,"usage: dosfslabel device [label]\n");
+ exit(status);
+}
+
+/*
+ * ++roman: On m68k, check if this is an Atari; if yes, turn on Atari variant
+ * of MS-DOS filesystem by default.
+ */
+static void check_atari( void )
+{
+#ifdef __mc68000__
+ FILE *f;
+ char line[128], *p;
+
+ if (!(f = fopen( "/proc/hardware", "r" ))) {
+ perror( "/proc/hardware" );
+ return;
+ }
+
+ while( fgets( line, sizeof(line), f ) ) {
+ if (strncmp( line, "Model:", 6 ) == 0) {
+ p = line + 6;
+ p += strspn( p, " \t" );
+ if (strncmp( p, "Atari ", 6 ) == 0)
+ atari_format = 1;
+ break;
+ }
+ }
+ fclose( f );
+#endif
+}
+
+
+int main(int argc, char *argv[])
+{
+ DOS_FS fs;
+ int rw = 0;
+
+ char *device = NULL;
+ char *label = NULL;
+
+ check_atari();
+
+ if (argc < 2 || argc > 3)
+ usage(1);
+
+ if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
+ usage(0);
+ else if (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version")) {
+ printf( "dosfslabel " VERSION ", " VERSION_DATE ", FAT32, LFN\n" );
+ exit(0);
+ }
+
+ device = argv[1];
+ if (argc == 3) {
+ label = argv[2];
+ if (strlen(label) > 11) {
+ fprintf(stderr,
+ "dosfslabel: labels can be no longer than 11 characters\n");
+ exit(1);
+ }
+ rw = 1;
+ }
+
+ fs_open(device, rw);
+ read_boot(&fs);
+ if (!rw) {
+ fprintf(stdout, "%s\n", fs.label);
+ exit(0);
+ }
+
+ write_label(&fs, label);
+ return fs_close(rw) ? 1 : 0;
+}
--- dosfstools-2.11/dosfsck/boot.h.label 1997-06-18 06:09:38.000000000 -0400
+++ dosfstools-2.11/dosfsck/boot.h 2007-01-11 16:33:54.000000000 -0500
@@ -7,6 +7,7 @@
#define _BOOT_H
void read_boot(DOS_FS *fs);
+void write_label(DOS_FS *fs, char *label);
/* Reads the boot sector from the currently open device and initializes *FS */
--- dosfstools-2.11/dosfsck/boot.c.label 2005-03-12 09:16:22.000000000 -0500
+++ dosfstools-2.11/dosfsck/boot.c 2007-01-11 16:33:54.000000000 -0500
@@ -8,6 +8,7 @@
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
+#include <stdlib.h>
#include "common.h"
#include "dosfsck.h"
@@ -348,6 +349,21 @@
/* On FAT32, the high 4 bits of a FAT entry are reserved */
fs->eff_fat_bits = (fs->fat_bits == 32) ? 28 : fs->fat_bits;
fs->fat_size = fat_length*logical_sector_size;
+
+ fs->label = calloc(12, sizeof (__u8));
+ if (fs->fat_bits == 12 || fs->fat_bits == 16) {
+ struct boot_sector_16 *b16 = (struct boot_sector_16 *)&b;
+ if (b16->extended_sig == 0x29)
+ memmove(fs->label, b16->label, 11);
+ else
+ fs->label = NULL;
+ } else if (fs->fat_bits == 32) {
+ if (b.extended_sig == 0x29)
+ memmove(fs->label, &b.label, 11);
+ else
+ fs->label = NULL;
+ }
+
if (fs->clusters > ((unsigned long long)fs->fat_size*8/fs->fat_bits)-2)
die("File system has %d clusters but only space for %d FAT entries.",
fs->clusters,((unsigned long long)fs->fat_size*8/fs->fat_bits)-2);
@@ -365,6 +381,36 @@
if (verbose) dump_boot(fs,&b,logical_sector_size);
}
+void write_label(DOS_FS *fs, char *label)
+{
+ struct boot_sector b;
+ struct boot_sector_16 *b16 = (struct boot_sector_16 *)&b;
+ int l = strlen(label);
+
+ while (l < 11)
+ label[l++] = ' ';
+
+ fs_read(0, sizeof(b), &b);
+ if (fs->fat_bits == 12 || fs->fat_bits == 16) {
+ if (b16->extended_sig != 0x29) {
+ b16->extended_sig = 0x29;
+ b16->serial = 0;
+ memmove(b16->fs_type, fs->fat_bits == 12 ?"FAT12 ":"FAT16 ", 8);
+ }
+ memmove(b16->label, label, 11);
+ } else if (fs->fat_bits == 32) {
+ if (b.extended_sig != 0x29) {
+ b.extended_sig = 0x29;
+ b.serial = 0;
+ memmove(b.fs_type, "FAT32 ", 8);
+ }
+ memmove(b.label, label, 11);
+ }
+ fs_write(0, sizeof(b), &b);
+ if (fs->fat_bits == 32 && fs->backupboot_start)
+ fs_write(fs->backupboot_start, sizeof(b), &b);
+}
+
/* Local Variables: */
/* tab-width: 8 */
/* End: */
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