sbin/mount_efs/mount_efs.c

   1 /*      $NetBSD: mount_efs.c,v 1.3 2007/07/16 17:06:52 pooka Exp $      */
   2
   3 /*
   4  * Copyright (c) 2006 Stephen M. Rumble <rumble@ephemeral.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/param.h>
  20 #include <sys/mount.h>
  21 #include <fs/efs/efs.h>
  22 #include <fs/efs/efs_sb.h>
  23 #include <fs/efs/efs_mount.h>
  24
  25 #include <err.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28
  29 #include <string.h>
  30 #include <unistd.h>
  31
  32 #include <mntopts.h>
  33
  34 #include "mountprog.h"
  35 #include "mount_efs.h"
  36
  37 static const struct mntopt mopts[] = {
  38         MOPT_STDOPTS,
  39         MOPT_GETARGS,
  40         MOPT_FORCE,
  41         MOPT_NULL
  42 };
  43
  44 static void     usage(void);
  45
  46 static void
  47 usage()
  48 {
  49
  50         fprintf(stderr, "usage: %s [-o options] special node\n", getprogname());
  51         exit(1);
  52 }
  53
  54 void
  55 mount_efs_parseargs(int argc, char **argv,
  56         struct efs_args *args, int *mntflags,
  57         char *canon_dev, char *canon_dir)
  58 {
  59         int ch;
  60         extern int optind;
  61         extern char *optarg;
  62         mntoptparse_t mp;
  63
  64         memset(args, 0, sizeof(*args));
  65         *mntflags = 0;
  66
  67         while ((ch = getopt(argc, argv, "o:")) != -1) {
  68                 switch (ch) {
  69                 case 'o':
  70                         mp = getmntopts(optarg, mopts, mntflags, NULL);
  71                         if (mp == NULL)
  72                                 err(1, "getmntopts");
  73                         freemntopts(mp);
  74                         break;
  75
  76                 default:
  77                         usage();
  78                 }
  79         }
  80         argc -= optind;
  81         argv += optind;
  82
  83         if (argc != 2)
  84                 usage();
  85
  86         pathadj(argv[0], canon_dev);
  87         pathadj(argv[1], canon_dir);
  88
  89         args->fspec = canon_dev;
  90         args->version = EFS_MNT_VERSION;
  91 }
  92
  93 int
  94 mount_efs(int argc, char **argv)
  95 {
  96         char special[MAXPATHLEN], node[MAXPATHLEN];
  97         struct efs_args args;
  98         int mntflags;
  99
 100         mount_efs_parseargs(argc, argv, &args, &mntflags, special, node);
 101
 102         if (mount(MOUNT_EFS, node, mntflags, &args, sizeof args) == -1)
 103                 err(EXIT_FAILURE, "%s on %s", special, node);
 104
 105         return (0);
 106 }
 107
 108 #ifndef MOUNT_NOMAIN
 109 int
 110 main(int argc, char **argv)
 111 {
 112
 113         setprogname(argv[0]);
 114         return (mount_efs(argc, argv));
 115 }
 116 #endif