1 /* mkfifo -- make fifo's (named pipes)
2 Copyright (C) 90, 91, 1995-2003 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 2, or (at your option)
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, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* David MacKenzie <djm@ai.mit.edu> */
23 #include <sys/types.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 "David MacKenzie"
35 /* The name this program was run with. */
38 static struct option const longopts[] =
40 {"mode", required_argument, NULL, 'm'},
41 {GETOPT_HELP_OPTION_DECL},
42 {GETOPT_VERSION_OPTION_DECL},
51 fprintf (stderr, _("Try `%s --help' for more information.\n"),
55 printf (_("Usage: %s [OPTION] NAME...\n"), program_name);
57 Create named pipes (FIFOs) with the given NAMEs.\n\
61 Mandatory arguments to long options are mandatory for short options too.\n\
64 -m, --mode=MODE set permission mode (as in chmod), not a=rw - umask\n\
66 fputs (HELP_OPTION_DESCRIPTION, stdout);
67 fputs (VERSION_OPTION_DESCRIPTION, stdout);
68 printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
75 main (int argc, char **argv)
78 struct mode_change *change;
79 const char *specified_mode;
83 initialize_main (&argc, &argv);
84 program_name = argv[0];
85 setlocale (LC_ALL, "");
86 bindtextdomain (PACKAGE, LOCALEDIR);
89 atexit (close_stdout);
91 specified_mode = NULL;
94 error (4, 0, _("fifo files not supported"));
96 while ((optc = getopt_long (argc, argv, "m:", longopts, NULL)) != -1)
103 specified_mode = optarg;
105 case_GETOPT_HELP_CHAR;
106 case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
108 usage (EXIT_FAILURE);
114 error (0, 0, _("too few arguments"));
115 usage (EXIT_FAILURE);
118 newmode = (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
121 newmode &= ~ umask (0);
122 change = mode_compile (specified_mode, 0);
123 if (change == MODE_INVALID)
124 error (EXIT_FAILURE, 0, _("invalid mode"));
125 else if (change == MODE_MEMORY_EXHAUSTED)
127 newmode = mode_adjust (newmode, change);
130 for (; optind < argc; ++optind)
132 int fail = mkfifo (argv[optind], newmode);
134 error (0, errno, _("cannot create fifo %s"), quote (argv[optind]));
136 /* If the containing directory happens to have a default ACL, chmod
137 ensures the file mode permission bits are still set as desired. */
139 if (fail == 0 && specified_mode)
141 fail = chmod (argv[optind], newmode);
143 error (0, errno, _("cannot set permissions of fifo %s"),
144 quote (argv[optind]));