sbin/getdevpath/getdevpath.c

   1 /*
   2  * Copyright (c) 2009 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include <sys/types.h>
  36 #include <unistd.h>
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <fstab.h>
  40
  41 static void usage(void);
  42
  43 int
  44 main(int ac, char **av)
  45 {
  46         int flags = 0;
  47         int i;
  48         int ch;
  49         int quietopt = 0;
  50         int error;
  51         char *path;
  52
  53         while ((ch = getopt(ac, av, "r")) != -1) {
  54                 switch(ch) {
  55                 case 'r':
  56                         flags |= GETDEVPATH_RAWDEV;
  57                         break;
  58                 case 'q':
  59                         quietopt = 1;
  60                         break;
  61                 default:
  62                         usage();
  63                         /* NOT REACHED */
  64                         break;
  65                 }
  66         }
  67         ac -= optind;
  68         av += optind;
  69         error = 0;
  70         for (i = 0; i < ac; ++i) {
  71                 path = getdevpath(av[i], flags);
  72                 if (quietopt) {
  73                         if (path) {
  74                                 printf("%s\n", path);
  75                         } else {
  76                                 error = 1;
  77                                 printf("\n");
  78                         }
  79                 } else {
  80                         if (path) {
  81                                 printf("%-20s %s\n", av[i], path);
  82                         } else {
  83                                 printf("%-20s <unknown>\n", av[i]);
  84                                 error = 1;
  85                         }
  86                 }
  87         }
  88         exit (error);
  89 }
  90
  91 static void
  92 usage(void)
  93 {
  94         fprintf(stderr, "usage: getdevpath [-qr] devname ...\n");
  95         exit(1);
  96 }