src/mkdir.c

   1 /* mkdir -- make directories
   2    Copyright (C) 1990 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  17
  18 /* Options:
  19    -p, --parent         Ensure that the given path(s) exist:
  20                         Make any missing parent directories for each argument.
  21                         Parent dirs default to umask modified by `u+wx'.
  22                         Do not consider an argument directory that already
  23                         exists to be an error.
  24    -m, --mode=mode      Set the mode of created directories to `mode', which is
  25                         symbolic as in chmod and uses the umask as a point of
  26                         departure.
  27
  28    David MacKenzie <djm@ai.mit.edu>  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #if defined (CONFIG_BROKETS)
  32 /* We use <config.h> instead of "config.h" so that a compilation
  33    using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
  34    (which it would do because it found this file in $srcdir).  */
  35 #include <config.h>
  36 #else
  37 #include "config.h"
  38 #endif
  39 #endif
  40
  41 #include <stdio.h>
  42 #include <getopt.h>
  43 #include <sys/types.h>
  44 #include "system.h"
  45 #include "modechange.h"
  46 #include "version.h"
  47
  48 int make_path ();
  49 void error ();
  50
  51 static void usage ();
  52
  53 /* The name this program was run with. */
  54 char *program_name;
  55
  56 /* If nonzero, ensure that all parents of the specified directory exist.  */
  57 static int path_mode;
  58
  59 /* If non-zero, display usage information and exit.  */
  60 static int show_help;
  61
  62 /* If non-zero, print the version on standard output and exit.  */
  63 static int show_version;
  64
  65 static struct option const longopts[] =
  66 {
  67   {"mode", required_argument, NULL, 'm'},
  68   {"path", no_argument, &path_mode, 1},
  69   {"parents", no_argument, &path_mode, 1},
  70   {"help", no_argument, &show_help, 1},
  71   {"version", no_argument, &show_version, 1},
  72   {NULL, 0, NULL, 0}
  73 };
  74
  75 void
  76 main (argc, argv)
  77      int argc;
  78      char **argv;
  79 {
  80   unsigned int newmode;
  81   unsigned int parent_mode;
  82   char *symbolic_mode = NULL;
  83   int errors = 0;
  84   int optc;
  85
  86   program_name = argv[0];
  87   path_mode = 0;
  88
  89   while ((optc = getopt_long (argc, argv, "pm:", longopts, (int *) 0)) != EOF)
  90     {
  91       switch (optc)
  92         {
  93         case 0:                 /* Long option. */
  94           break;
  95         case 'p':
  96           path_mode = 1;
  97           break;
  98         case 'm':
  99           symbolic_mode = optarg;
 100           break;
 101         default:
 102           usage ();
 103         }
 104     }
 105
 106   if (show_version)
 107     {
 108       printf ("%s\n", version_string);
 109       exit (0);
 110     }
 111
 112   if (show_help)
 113     usage ();
 114
 115   if (optind == argc)
 116     usage ();
 117
 118   newmode = 0777 & ~umask (0);
 119   parent_mode = newmode | 0300; /* u+wx */
 120   if (symbolic_mode)
 121     {
 122       struct mode_change *change = mode_compile (symbolic_mode, 0);
 123       if (change == MODE_INVALID)
 124         error (1, 0, "invalid mode `%s'", symbolic_mode);
 125       else if (change == MODE_MEMORY_EXHAUSTED)
 126         error (1, 0, "virtual memory exhausted");
 127       newmode = mode_adjust (newmode, change);
 128     }
 129
 130   for (; optind < argc; ++optind)
 131     {
 132       if (path_mode)
 133         errors |= make_path (argv[optind], newmode, parent_mode, -1, -1, NULL);
 134       else if (mkdir (argv[optind], newmode))
 135         {
 136           error (0, errno, "cannot make directory `%s'", argv[optind]);
 137           errors = 1;
 138         }
 139     }
 140
 141   exit (errors);
 142 }
 143
 144 static void
 145 usage ()
 146 {
 147   fprintf (stderr, "\
 148 Usage: %s [-p] [-m mode] [--parents] [--mode=mode]\n\
 149        [--help] [--version] dir...\n", program_name);
 150   exit (1);
 151 }
 152