173 lines
4.3 KiB
C
Executable file
173 lines
4.3 KiB
C
Executable file
/*
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* mlabel.c
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* Make an MSDOS volume label
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*/
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#include "sysincludes.h"
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#include "msdos.h"
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#include "mainloop.h"
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#include "vfat.h"
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#include "mtools.h"
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#include "nameclash.h"
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static void usage(void)
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{
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fprintf(stderr,
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"Mtools version %s, dated %s\n", mversion, mdate);
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fprintf(stderr,
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"Usage: %s [-v] drive\n\t-v Verbose\n", progname);
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exit(1);
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}
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static void displayInfosector(Stream_t *Stream, struct bootsector *boot)
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{
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InfoSector_t *infosec;
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if(WORD(ext.fat32.infoSector) == MAX32)
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return;
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infosec = (InfoSector_t *) safe_malloc(WORD(secsiz));
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force_read(Stream, (char *) infosec,
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(mt_off_t) WORD(secsiz) * WORD(ext.fat32.infoSector),
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WORD(secsiz));
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printf("\nInfosector:\n");
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printf("signature=0x%08x\n", _DWORD(infosec->signature1));
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if(_DWORD(infosec->count) != MAX32)
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printf("free clusters=%u\n", _DWORD(infosec->count));
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if(_DWORD(infosec->pos) != MAX32)
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printf("last allocated cluster=%u\n", _DWORD(infosec->pos));
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}
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void minfo(int argc, char **argv, int type)
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{
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struct bootsector boot0;
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#define boot (&boot0)
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char name[EXPAND_BUF];
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int media;
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int tot_sectors;
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struct device dev;
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char *drive;
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int verbose=0;
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int c;
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Stream_t *Stream;
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struct label_blk_t *labelBlock;
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while ((c = getopt(argc, argv, "v")) != EOF) {
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switch (c) {
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case 'v':
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verbose = 1;
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break;
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default:
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usage();
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}
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}
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if(argc == optind)
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usage();
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for(;optind < argc; optind++) {
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if(skip_drive(argv[optind]) == argv[optind])
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usage();
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drive = get_drive(argv[optind], NULL);
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if(! (Stream = find_device(drive, O_RDONLY, &dev, boot,
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name, &media, 0)))
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exit(1);
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tot_sectors = DWORD(bigsect);
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SET_INT(tot_sectors, WORD(psect));
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printf("device information:\n");
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printf("===================\n");
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printf("filename=\"%s\"\n", name);
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printf("sectors per track: %d\n", dev.sectors);
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printf("heads: %d\n", dev.heads);
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printf("cylinders: %d\n\n", dev.tracks);
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printf("mformat command line: mformat -t %d -h %d -s %d ",
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dev.tracks, dev.heads, dev.sectors);
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if(DWORD(nhs))
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printf("-H %d ", DWORD(nhs));
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printf("%s:\n", drive);
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printf("\n");
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printf("bootsector information\n");
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printf("======================\n");
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printf("banner:\"%8s\"\n", boot->banner);
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printf("sector size: %d bytes\n", WORD(secsiz));
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printf("cluster size: %d sectors\n", boot->clsiz);
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printf("reserved (boot) sectors: %d\n", WORD(nrsvsect));
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printf("fats: %d\n", boot->nfat);
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printf("max available root directory slots: %d\n",
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WORD(dirents));
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printf("small size: %d sectors\n", WORD(psect));
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printf("media descriptor byte: 0x%x\n", boot->descr);
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printf("sectors per fat: %d\n", WORD(fatlen));
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printf("sectors per track: %d\n", WORD(nsect));
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printf("heads: %d\n", WORD(nheads));
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printf("hidden sectors: %d\n", DWORD(nhs));
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printf("big size: %d sectors\n", DWORD(bigsect));
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if(WORD(fatlen)) {
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labelBlock = &boot->ext.old.labelBlock;
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} else {
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labelBlock = &boot->ext.fat32.labelBlock;
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}
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printf("physical drive id: 0x%x\n",
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labelBlock->physdrive);
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printf("reserved=0x%x\n",
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labelBlock->reserved);
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printf("dos4=0x%x\n",
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labelBlock->dos4);
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printf("serial number: %08X\n",
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_DWORD(labelBlock->serial));
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printf("disk label=\"%11.11s\"\n",
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labelBlock->label);
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printf("disk type=\"%8.8s\"\n",
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labelBlock->fat_type);
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if(!WORD(fatlen)){
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printf("Big fatlen=%u\n",
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DWORD(ext.fat32.bigFat));
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printf("Extended flags=0x%04x\n",
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WORD(ext.fat32.extFlags));
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printf("FS version=0x%04x\n",
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WORD(ext.fat32.fsVersion));
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printf("rootCluster=%u\n",
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DWORD(ext.fat32.rootCluster));
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if(WORD(ext.fat32.infoSector) != MAX32)
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printf("infoSector location=%d\n",
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WORD(ext.fat32.infoSector));
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if(WORD(ext.fat32.backupBoot) != MAX32)
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printf("backup boot sector=%d\n",
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WORD(ext.fat32.backupBoot));
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displayInfosector(Stream,boot);
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}
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if(verbose) {
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int size;
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unsigned char *buf;
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printf("\n");
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size = WORD(secsiz);
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buf = (unsigned char *) malloc(size);
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if(!buf) {
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fprintf(stderr, "Out of memory error\n");
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exit(1);
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}
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size = READS(Stream, buf, (mt_off_t) 0, size);
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if(size < 0) {
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perror("read boot sector");
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exit(1);
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}
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print_sector("Boot sector hexdump", buf, size);
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}
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}
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exit(0);
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}
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