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63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/*
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* Mini losetup implementation for busybox
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*
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* Copyright (C) 2002 Matt Kraai.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <getopt.h>
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#include <stdlib.h>
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#include "busybox.h"
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int losetup_main (int argc, char **argv)
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{
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int offset = 0;
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/* This will need a "while(getopt()!=-1)" loop when we can have more than
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one option, but for now we can't. */
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switch(getopt(argc,argv, "do:")) {
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case 'd':
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/* detach takes exactly one argument */
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if(optind+1!=argc) bb_show_usage();
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if(!del_loop(argv[optind])) return EXIT_SUCCESS;
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die_failed:
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bb_perror_msg_and_die("%s",argv[optind]);
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case 'o':
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offset = bb_xparse_number (optarg, NULL);
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/* Fall through to do the losetup */
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case -1:
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/* losetup takes two argument:, loop_device and file */
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if(optind+2==argc) {
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if(set_loop(&argv[optind], argv[optind + 1], offset)>=0)
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return EXIT_SUCCESS;
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else goto die_failed;
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}
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if(optind+1==argc) {
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char *s=query_loop(argv[optind]);
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if (!s) goto die_failed;
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printf("%s: %s\n",argv[optind],s);
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if(ENABLE_FEATURE_CLEAN_UP) free(s);
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return EXIT_SUCCESS;
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}
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break;
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}
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bb_show_usage();
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return EXIT_FAILURE;
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}
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