unmount.c

00001 /*
00002  * Copyright (c) 2010 Jakub Jermar
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  *
00009  * - Redistributions of source code must retain the above copyright
00010  *   notice, this list of conditions and the following disclaimer.
00011  * - Redistributions in binary form must reproduce the above copyright
00012  *   notice, this list of conditions and the following disclaimer in the
00013  *   documentation and/or other materials provided with the distribution.
00014  * - The name of the author may not be used to endorse or promote products
00015  *   derived from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00018  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00019  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00020  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00021  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00022  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00023  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00024  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00025  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00026  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00027  */
00028 
00029 #include <stdio.h>
00030 #include <stdlib.h>
00031 #include <vfs/vfs.h>
00032 #include <errno.h>
00033 #include "config.h"
00034 #include "util.h"
00035 #include "errors.h"
00036 #include "entry.h"
00037 #include "unmount.h"
00038 #include "cmds.h"
00039 
00040 static const char *cmdname = "unmount";
00041 
00042 /* Dispays help for unmount in various levels */
00043 void help_cmd_unmount(unsigned int level)
00044 {
00045         if (level == HELP_SHORT) {
00046                 printf("'%s' unmount a file system.\n", cmdname);
00047         } else {
00048                 help_cmd_unmount(HELP_SHORT);
00049                 printf("Usage: %s <mp>\n", cmdname);
00050         }
00051         return;
00052 }
00053 
00054 /* Main entry point for unmount, accepts an array of arguments */
00055 int cmd_unmount(char **argv)
00056 {
00057         unsigned int argc;
00058         int rc;
00059 
00060         argc = cli_count_args(argv);
00061 
00062         if (argc != 2) {
00063                 printf("%s: invalid number of arguments.\n",
00064                     cmdname);
00065                 return CMD_FAILURE;
00066         }
00067 
00068         rc = unmount(argv[1]);
00069         if (rc != EOK) {
00070                 printf("Unable to unmount %s (rc=%d)\n", argv[1], rc);
00071                 return CMD_FAILURE;
00072         }
00073 
00074         return CMD_SUCCESS;
00075 }
00076 

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