/* * Mini losetup implementation for busybox * * Copyright (C) 2002 Matt Kraai. * * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ #include <getopt.h> #include <stdlib.h> #include "busybox.h" int losetup_main (int argc, char **argv) { int offset = 0; /* This will need a "while(getopt()!=-1)" loop when we can have more than one option, but for now we can't. */ switch(getopt(argc,argv, "do:")) { case 'd': /* detach takes exactly one argument */ if(optind+1!=argc) bb_show_usage(); if(!del_loop(argv[optind])) return EXIT_SUCCESS; die_failed: bb_perror_msg_and_die("%s",argv[optind]); case 'o': offset = bb_xparse_number (optarg, NULL); /* Fall through to do the losetup */ case -1: /* losetup takes two argument:, loop_device and file */ if(optind+2==argc) { if(set_loop(&argv[optind], argv[optind + 1], offset)>=0) return EXIT_SUCCESS; else goto die_failed; } if(optind+1==argc) { char *s=query_loop(argv[optind]); if (!s) goto die_failed; printf("%s: %s\n",argv[optind],s); if(ENABLE_FEATURE_CLEAN_UP) free(s); return EXIT_SUCCESS; } break; } bb_show_usage(); return EXIT_FAILURE; }