sbin/nandfs/rmsnap.c

   1 /*-
   2  * Copyright (c) 2012 The FreeBSD Foundation
   3  * All rights reserved.
   4  *
   5  * This software was developed by Semihalf under sponsorship
   6  * from the FreeBSD Foundation.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __FBSDID("$FreeBSD$");
  33 #include <sys/types.h>
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <limits.h>
  38 #include <sysexits.h>
  39
  40 #include <fs/nandfs/nandfs_fs.h>
  41 #include <libnandfs.h>
  42
  43 #include "nandfs.h"
  44
  45 static void
  46 rmsnap_usage(void)
  47 {
  48
  49         fprintf(stderr, "usage:\n");
  50         fprintf(stderr, "\trmsnap snap node\n");
  51 }
  52
  53 int
  54 nandfs_rmsnap(int argc, char **argv)
  55 {
  56         struct nandfs fs;
  57         uint64_t cpno;
  58         int error;
  59
  60         if (argc != 2) {
  61                 rmsnap_usage();
  62                 return (EX_USAGE);
  63         }
  64
  65         cpno = strtoll(argv[0], (char **)NULL, 10);
  66         if (cpno == 0) {
  67                 fprintf(stderr, "%s must be a number greater than 0\n",
  68                     argv[0]);
  69                 return (EX_USAGE);
  70         }
  71
  72         nandfs_init(&fs, argv[1]);
  73         error = nandfs_open(&fs);
  74         if (error == -1) {
  75                 fprintf(stderr, "nandfs_open: %s\n", nandfs_errmsg(&fs));
  76                 goto out;
  77         }
  78
  79         error = nandfs_delete_snap(&fs, cpno);
  80         if (error == -1)
  81                 fprintf(stderr, "nandfs_delete_snap: %s\n", nandfs_errmsg(&fs));
  82
  83 out:
  84         nandfs_close(&fs);
  85         nandfs_destroy(&fs);
  86         return (error);
  87 }