1 /* mkdir -- make directories
2 Copyright (C) 1990, 1995-2002, 2004-2012 Free Software Foundation, Inc.
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 3 of the License, or
7 (at your option) any later version.
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.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* David MacKenzie <djm@ai.mit.edu> */
22 #include <sys/types.h>
23 #include <selinux/selinux.h>
28 #include "modechange.h"
29 #include "prog-fprintf.h"
33 /* The official name of this program (e.g., no `g' prefix). */
34 #define PROGRAM_NAME "mkdir"
36 #define AUTHORS proper_name ("David MacKenzie")
38 static struct option const longopts[] =
40 {GETOPT_SELINUX_CONTEXT_OPTION_DECL},
41 {"mode", required_argument, NULL, 'm'},
42 {"parents", no_argument, NULL, 'p'},
43 {"verbose", no_argument, NULL, 'v'},
44 {GETOPT_HELP_OPTION_DECL},
45 {GETOPT_VERSION_OPTION_DECL},
52 if (status != EXIT_SUCCESS)
53 fprintf (stderr, _("Try `%s --help' for more information.\n"),
57 printf (_("Usage: %s [OPTION]... DIRECTORY...\n"), program_name);
59 Create the DIRECTORY(ies), if they do not already exist.\n\
63 Mandatory arguments to long options are mandatory for short options too.\n\
66 -m, --mode=MODE set file mode (as in chmod), not a=rwx - umask\n\
67 -p, --parents no error if existing, make parent directories as needed\n\
68 -v, --verbose print a message for each created directory\n\
69 -Z, --context=CTX set the SELinux security context of each created\n\
72 fputs (HELP_OPTION_DESCRIPTION, stdout);
73 fputs (VERSION_OPTION_DESCRIPTION, stdout);
74 emit_ancillary_info ();
79 /* Options passed to subsidiary functions. */
82 /* Function to make an ancestor, or NULL if ancestors should not be
84 int (*make_ancestor_function) (char const *, char const *, void *);
86 /* Mode for ancestor directory. */
89 /* Mode for directory itself. */
92 /* File mode bits affected by MODE. */
95 /* If not null, format to use when reporting newly made directories. */
96 char const *created_directory_format;
99 /* Report that directory DIR was made, if OPTIONS requests this. */
101 announce_mkdir (char const *dir, void *options)
103 struct mkdir_options const *o = options;
104 if (o->created_directory_format)
105 prog_fprintf (stdout, o->created_directory_format, quote (dir));
108 /* Make ancestor directory DIR, whose last component is COMPONENT,
109 with options OPTIONS. Assume the working directory is COMPONENT's
110 parent. Return 0 if successful and the resulting directory is
111 readable, 1 if successful but the resulting directory is not
112 readable, -1 (setting errno) otherwise. */
114 make_ancestor (char const *dir, char const *component, void *options)
116 struct mkdir_options const *o = options;
117 int r = mkdir (component, o->ancestor_mode);
120 r = ! (o->ancestor_mode & S_IRUSR);
121 announce_mkdir (dir, options);
126 /* Process a command-line file name. */
128 process_dir (char *dir, struct savewd *wd, void *options)
130 struct mkdir_options const *o = options;
131 return (make_dir_parents (dir, wd, o->make_ancestor_function, options,
132 o->mode, announce_mkdir,
133 o->mode_bits, (uid_t) -1, (gid_t) -1, true)
139 main (int argc, char **argv)
141 const char *specified_mode = NULL;
143 security_context_t scontext = NULL;
144 struct mkdir_options options;
146 options.make_ancestor_function = NULL;
147 options.mode = S_IRWXUGO;
148 options.mode_bits = 0;
149 options.created_directory_format = NULL;
151 initialize_main (&argc, &argv);
152 set_program_name (argv[0]);
153 setlocale (LC_ALL, "");
154 bindtextdomain (PACKAGE, LOCALEDIR);
155 textdomain (PACKAGE);
157 atexit (close_stdout);
159 while ((optc = getopt_long (argc, argv, "pm:vZ:", longopts, NULL)) != -1)
164 options.make_ancestor_function = make_ancestor;
167 specified_mode = optarg;
169 case 'v': /* --verbose */
170 options.created_directory_format = _("created directory %s");
175 case_GETOPT_HELP_CHAR;
176 case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
178 usage (EXIT_FAILURE);
184 error (0, 0, _("missing operand"));
185 usage (EXIT_FAILURE);
188 if (scontext && setfscreatecon (scontext) < 0)
189 error (EXIT_FAILURE, errno,
190 _("failed to set default file creation context to %s"),
193 if (options.make_ancestor_function || specified_mode)
195 mode_t umask_value = umask (0);
197 options.ancestor_mode = (S_IRWXUGO & ~umask_value) | (S_IWUSR | S_IXUSR);
201 struct mode_change *change = mode_compile (specified_mode);
203 error (EXIT_FAILURE, 0, _("invalid mode %s"),
204 quote (specified_mode));
205 options.mode = mode_adjust (S_IRWXUGO, true, umask_value, change,
210 options.mode = S_IRWXUGO & ~umask_value;
213 exit (savewd_process_files (argc - optind, argv + optind,
214 process_dir, &options));