1/* 2 * Reads and displays CD-ROM volume name 3 * 4 * Several people have asked how to read CD volume names so I wrote this 5 * small program to do it. 6 * 7 * usage: volname [<device-file>] 8 * 9 * Copyright (C) 2000-2001 Jeff Tranter (tranter@pobox.com) 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 24 */ 25 26/* 27 * mods from distributed source (eject-2.0.13) are by 28 * Matthew Stoltenberg <d3matt@gmail.com> 29 */ 30#include "libbb.h" 31 32int volname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 33int volname_main(int argc UNUSED_PARAM, char **argv) 34{ 35 int fd; 36 char buffer[32]; 37 const char *device; 38 39 device = "/dev/cdrom"; 40 if (argv[1]) { 41 device = argv[1]; 42 if (argv[2]) 43 bb_show_usage(); 44 } 45 46 fd = xopen(device, O_RDONLY); 47 xlseek(fd, 32808, SEEK_SET); 48 xread(fd, buffer, 32); 49 printf("%32.32s\n", buffer); 50 if (ENABLE_FEATURE_CLEAN_UP) { 51 close(fd); 52 } 53 return 0; 54} 55