1 /* mkfifo -- make fifo's (named pipes)
2 Copyright (C) 90, 91, 95, 1996 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. */
19 -m, --mode=mode Set the mode of created fifo's to MODE, which is
20 symbolic as in chmod and uses the umask as a point of
23 David MacKenzie <djm@ai.mit.edu> */
28 #include <sys/types.h>
31 #include "modechange.h"
34 /* The name this program was run with. */
37 /* If nonzero, display usage information and exit. */
40 /* If nonzero, print the version on standard output and exit. */
41 static int show_version;
43 static struct option const longopts[] =
45 {"mode", required_argument, NULL, 'm'},
46 {"help", no_argument, &show_help, 1},
47 {"version", no_argument, &show_version, 1},
56 fprintf (stderr, _("Try `%s --help' for more information.\n"),
60 printf (_("Usage: %s [OPTION] NAME...\n"), program_name);
62 Create named pipes (FIFOs) with the given NAMEs.\n\
64 -m, --mode=MODE set permission mode (as in chmod), not 0666 - umask\n\
65 --help display this help and exit\n\
66 --version output version information and exit\n\
68 puts (_("\nReport bugs to bug-gnu-utils@gnu.ai.mit.edu"));
75 main (int argc, char **argv)
77 unsigned short newmode;
78 struct mode_change *change;
83 program_name = argv[0];
84 setlocale (LC_ALL, "");
85 bindtextdomain (PACKAGE, LOCALEDIR);
91 error (4, 0, _("fifo files not supported"));
93 while ((optc = getopt_long (argc, argv, "m:", longopts, (int *) 0)) != EOF)
100 symbolic_mode = optarg;
109 printf ("mkfifo - %s\n", PACKAGE_VERSION);
118 error (0, 0, _("too few arguments"));
122 newmode = 0666 & ~umask (0);
125 change = mode_compile (symbolic_mode, 0);
126 if (change == MODE_INVALID)
127 error (1, 0, _("invalid mode"));
128 else if (change == MODE_MEMORY_EXHAUSTED)
129 error (1, 0, _("virtual memory exhausted"));
130 newmode = mode_adjust (newmode, change);
133 for (; optind < argc; ++optind)
135 if (mkfifo (argv[optind], newmode))
137 error (0, errno, _("cannot make fifo `%s'"), argv[optind]);