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       1                 :             : /*
       2                 :             :  * Copyright (c) 2016, Citrix Systems, Inc.
       3                 :             :  *
       4                 :             :  * All rights reserved.
       5                 :             :  *
       6                 :             :  * Redistribution and use in source and binary forms, with or without
       7                 :             :  * modification, are permitted provided that the following conditions are met:
       8                 :             :  * 
       9                 :             :  *  1. Redistributions of source code must retain the above copyright
      10                 :             :  *     notice, this list of conditions and the following disclaimer.
      11                 :             :  *  2. Redistributions in binary form must reproduce the above copyright
      12                 :             :  *     notice, this list of conditions and the following disclaimer in the
      13                 :             :  *     documentation and/or other materials provided with the distribution.
      14                 :             :  *  3. Neither the name of the copyright holder nor the names of its 
      15                 :             :  *     contributors may be used to endorse or promote products derived from 
      16                 :             :  *     this software without specific prior written permission.
      17                 :             :  *
      18                 :             :  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      19                 :             :  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      20                 :             :  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      21                 :             :  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
      22                 :             :  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
      23                 :             :  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
      24                 :             :  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
      25                 :             :  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
      26                 :             :  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
      27                 :             :  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
      28                 :             :  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      29                 :             :  */
      30                 :             : 
      31                 :             : #ifdef HAVE_CONFIG_H
      32                 :             : #include "config.h"
      33                 :             : #endif
      34                 :             : 
      35                 :             : #include <stdio.h>
      36                 :             : #include <errno.h>
      37                 :             : #include <stdlib.h>
      38                 :             : #include <unistd.h>
      39                 :             : 
      40                 :             : #include "libvhd.h"
      41                 :             : 
      42                 :             : int
      43                 :           0 : vhd_util_create(int argc, char **argv)
      44                 :             : {
      45                 :           0 :         char *name;
      46                 :           0 :         uint64_t size, msize;
      47                 :           0 :         int c, sparse, err;
      48                 :           0 :         vhd_flag_creat_t flags;
      49                 :             : 
      50                 :           0 :         err       = -EINVAL;
      51                 :           0 :         size      = 0;
      52                 :           0 :         msize     = 0;
      53                 :           0 :         sparse    = 1;
      54                 :           0 :         name      = NULL;
      55                 :           0 :         flags     = 0;
      56                 :             : 
      57         [ #  # ]:           0 :         if (!argc || !argv)
      58                 :           0 :                 goto usage;
      59                 :             : 
      60                 :           0 :         optind = 0;
      61         [ #  # ]:           0 :         while ((c = getopt(argc, argv, "n:s:S:rh")) != -1) {
      62   [ #  #  #  #  :           0 :                 switch (c) {
                      # ]
      63                 :           0 :                 case 'n':
      64                 :           0 :                         name = optarg;
      65                 :           0 :                         break;
      66                 :           0 :                 case 's':
      67                 :           0 :                         err  = 0;
      68                 :           0 :                         size = strtoull(optarg, NULL, 10);
      69                 :           0 :                         break;
      70                 :           0 :                 case 'S':
      71                 :           0 :                         err = 0;
      72                 :           0 :                         msize = strtoull(optarg, NULL, 10);
      73                 :           0 :                         break;
      74                 :             :                 case 'r':
      75                 :             :                         sparse = 0;
      76                 :             :                         break;
      77                 :           0 :                 case 'h':
      78                 :             :                 default:
      79                 :           0 :                         goto usage;
      80                 :             :                 }
      81                 :             :         }
      82                 :             : 
      83   [ #  #  #  # ]:           0 :         if (err || !name || optind != argc)
      84                 :           0 :                 goto usage;
      85                 :             : 
      86         [ #  # ]:           0 :         if (msize && msize < size) {
      87                 :           0 :                 printf("Error: <-S size> must be greater than <-s size>\n");
      88                 :           0 :                 return -EINVAL;
      89                 :             :         }
      90                 :             : 
      91         [ #  # ]:           0 :         return vhd_create(name, size << 20,
      92                 :             :                                   (sparse ? HD_TYPE_DYNAMIC : HD_TYPE_FIXED),
      93                 :             :                                   msize << 20, flags);
      94                 :             : 
      95                 :           0 : usage:
      96                 :           0 :         printf("options: <-n name> <-s size (MB)> [-r reserve] [-h help] "
      97                 :             :                         "[<-S size (MB) for metadata preallocation "
      98                 :             :                         "(see vhd-util resize)>]\n");
      99                 :           0 :         return -EINVAL;
     100                 :             : }