mdw@git.distorted.org.uk Git - dvdrip/blob - dvd-id.c

   1 #include "lib.h"
   2
   3 static void usage(FILE *fp) { fprintf(fp, "usage: %s DEVICE\n", prog); }
   4
   5 static void puthex(const unsigned char *p, size_t sz, FILE *fp)
   6   { while (sz) { fprintf(fp, "%02x", *p++); sz--; } }
   7
   8 int main(int argc, char *argv[])
   9 {
  10   char volid[33];
  11   unsigned char volsetid[16], discid[16];
  12   int rc, opt;
  13   unsigned f = 0;
  14   static dvd_reader_t *dvd;
  15 #define f_bogus 1u
  16
  17   set_prog(argv[0]);
  18   for (;;) {
  19     opt = getopt(argc, argv, "h"); if (opt < 0) break;
  20     switch (opt) {
  21       case 'h': usage(stderr); exit(0);
  22       default: f |= f_bogus; break;
  23     }
  24   }
  25   if (argc - optind != 1) f |= f_bogus;
  26   if (f&f_bogus) { usage(stderr); exit(2); }
  27   setlocale(LC_ALL, "");
  28   progress_init(&progress);
  29
  30   open_dvd(argv[optind], 0, &dvd);
  31
  32   rc = DVDUDFVolumeInfo(dvd,
  33                         volid, sizeof(volid),
  34                         volsetid, sizeof(volsetid));
  35   if (rc) {
  36     moan("failed to read volume info");
  37     strcpy(volid, "<error reading volume info>");
  38     memset(volsetid, 0xff, sizeof(volsetid));
  39   }
  40
  41   rc = DVDDiscID(dvd, discid);
  42   if (rc) {
  43     moan("failed to determine disc id");
  44     memset(discid, 0xff, sizeof(discid));
  45   }
  46
  47   fputs(volid, stdout); fputc('-', stdout);
  48   puthex(volsetid, sizeof(volsetid), stdout); fputc(':', stdout);
  49   puthex(discid, sizeof(discid), stdout); fputc('\n', stdout);
  50
  51   if (dvd) DVDClose(dvd);
  52   progress_free(&progress);
  53   return (0);
  54 }