1 /* mkfifo -- make fifo's (named pipes)
2 Copyright (C) 90, 91, 1995-2008 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>
27 #include "modechange.h"
30 /* The official name of this program (e.g., no `g' prefix). */
31 #define PROGRAM_NAME "mkfifo"
33 #define AUTHORS proper_name ("David MacKenzie")
35 static struct option const longopts[] =
37 {GETOPT_SELINUX_CONTEXT_OPTION_DECL},
38 {"mode", required_argument, NULL, 'm'},
39 {GETOPT_HELP_OPTION_DECL},
40 {GETOPT_VERSION_OPTION_DECL},
47 if (status != EXIT_SUCCESS)
48 fprintf (stderr, _("Try `%s --help' for more information.\n"),
52 printf (_("Usage: %s [OPTION]... NAME...\n"), program_name);
54 Create named pipes (FIFOs) with the given NAMEs.\n\
58 Mandatory arguments to long options are mandatory for short options too.\n\
61 -Z, --context=CTX set the SELinux security context of each NAME to CTX\n\
64 -m, --mode=MODE set file permission bits to MODE, not a=rw - umask\n\
66 fputs (HELP_OPTION_DESCRIPTION, stdout);
67 fputs (VERSION_OPTION_DESCRIPTION, stdout);
68 emit_bug_reporting_address ();
74 main (int argc, char **argv)
77 char const *specified_mode = NULL;
78 int exit_status = EXIT_SUCCESS;
80 security_context_t scontext = NULL;
82 initialize_main (&argc, &argv);
83 set_program_name (argv[0]);
84 setlocale (LC_ALL, "");
85 bindtextdomain (PACKAGE, LOCALEDIR);
88 atexit (close_stdout);
90 while ((optc = getopt_long (argc, argv, "m:Z:", longopts, NULL)) != -1)
95 specified_mode = optarg;
100 case_GETOPT_HELP_CHAR;
101 case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
103 usage (EXIT_FAILURE);
109 error (0, 0, _("missing operand"));
110 usage (EXIT_FAILURE);
113 if (scontext && setfscreatecon (scontext) < 0)
114 error (EXIT_FAILURE, errno,
115 _("failed to set default file creation context to %s"),
118 newmode = (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
121 struct mode_change *change = mode_compile (specified_mode);
123 error (EXIT_FAILURE, 0, _("invalid mode"));
124 newmode = mode_adjust (newmode, false, umask (0), change, NULL);
126 if (newmode & ~S_IRWXUGO)
127 error (EXIT_FAILURE, 0,
128 _("mode must specify only file permission bits"));
131 for (; optind < argc; ++optind)
132 if (mkfifo (argv[optind], newmode) != 0)
134 error (0, errno, _("cannot create fifo %s"), quote (argv[optind]));
135 exit_status = EXIT_FAILURE;