1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83
|
/*
* Reads and displays CD-ROM volume name
*
* Several people have asked how to read CD volume names so I wrote this
* small program to do it.
*
* usage: volname [<device-file>]
*
********************************************************************
*
* Copyright (C) 2000-2001 Jeff Tranter (tranter@pobox.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
********************************************************************
*
*/
#include "i18n.h"
#ifndef DEFAULTDEVICE
#error DEFAULTDEVICE not set, check Makefile
#endif
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
int fd;
int status;
char *device;
char buffer[33];
I18NCODE
if (argc == 2) {
device = argv[1];
} else if (argc == 1) {
device = "/dev/" DEFAULTDEVICE;
} else {
fprintf(stderr, _("usage: volname [<device-file>]\n"));
exit(1);
}
fd = open(device, O_RDONLY);
if (fd == -1) {
perror(_("volname"));
exit(1);
}
status = lseek(fd, 32808, SEEK_SET);
if (status == -1) {
perror(_("volname"));
exit(1);
}
status = read(fd, buffer, 32);
if (status == -1) {
perror(_("volname"));
exit(1);
}
printf("%32.32s\n", buffer);
return 0;
}
|