src/bin/mount.c

   1 /*
   2  * Copyright 2001-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6 /**     Mounts a volume with the specified file system */
   7
   8
   9 #include <fs_volume.h>
  10
  11 #include <sys/stat.h>
  12 #include <unistd.h>
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <string.h>
  16
  17
  18 static void
  19 usage(const char *programName)
  20 {
  21
  22         printf("usage: %s [-ro] [-t fstype] [-p parameter] [device] directory\n"
  23                 "\t-ro\tmounts the volume read-only\n"
  24                 "\t-t\tspecifies the file system to use (defaults to automatic recognition)\n"
  25                 "\t-p\tspecifies parameters to pass to the file system (-o also accepted)\n"
  26                 "\tif device is not specified, NULL is passed (for in-memory filesystems)\n",programName);
  27         exit(1);
  28 }
  29
  30
  31 int
  32 main(int argc, char **argv)
  33 {
  34         const char *programName = argv[0];
  35         const char *device = NULL;
  36         const char *mountPoint;
  37         const char *parameter = NULL;
  38         const char *fs = NULL;
  39         struct stat mountStat;
  40         dev_t volume;
  41         uint32 flags = 0;
  42
  43         /* prettify the program name */
  44
  45         if (strrchr(programName, '/'))
  46                 programName = strrchr(programName, '/') + 1;
  47
  48         /* get all options */
  49
  50         while (*++argv) {
  51                 char *arg = *argv;
  52                 argc--;
  53                 if (*arg != '-')
  54                         break;
  55
  56                 if (!strcmp(++arg, "ro") && (flags & B_MOUNT_READ_ONLY) == 0)
  57                         flags |= B_MOUNT_READ_ONLY;
  58                 else if (!strcmp(arg, "t") && fs == NULL) {
  59                         if (argc <= 1)
  60                                 break;
  61                         fs = *++argv;
  62                         argc--;
  63                 } else if ((!strcmp(arg, "p") || !strcmp(arg, "o")) && parameter == NULL) {
  64                         if (argc <= 1)
  65                                 break;
  66                         parameter = *++argv;
  67                         argc--;
  68                 } else
  69                         usage(programName);
  70         }
  71
  72         /* check the arguments */
  73
  74         if (argc > 1) {
  75                 device = argv[0];
  76                 argv++;
  77                 argc--;
  78         }
  79         mountPoint = argv[0];
  80
  81         if (mountPoint == NULL)
  82                 usage(programName);
  83
  84         if (stat(mountPoint, &mountStat) < 0) {
  85                 fprintf(stderr, "%s: The mount point '%s' is not accessible\n", programName, mountPoint);
  86                 return 1;
  87         }
  88         if (!S_ISDIR(mountStat.st_mode)) {
  89                 fprintf(stderr, "%s: The mount point '%s' is not a directory\n", programName, mountPoint);
  90                 return 1;
  91         }
  92
  93         /* do the work */
  94
  95         volume = fs_mount_volume(mountPoint, device, fs, flags, parameter);
  96         if (volume < B_OK) {
  97                 fprintf(stderr, "%s: %s\n", programName, strerror(volume));
  98                 return 1;
  99         }
 100         return 0;
 101 }
 102