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annotate toys/mkfifo.c @ 233:d4176f3f3835

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Zap toys/Config.in and instead create generated/Config.in from contents of toys/*.c. Move relevant info into comment at the top of each toys/*.c. Also convert more of Makefile into a thin wrapper around shell scripts that actually do the work. (Makefile is only still there for the user interface.)
author Rob Landley <rob@landley.net>
date Sat, 19 Jan 2008 17:08:39 -0600
parents 25447caf1b4b
children 163498bf547b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* vi: set sw=4 ts=4:
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2 *
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3 * mkfifo.c: Create a named pipe.
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4 *
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5 * See http://www.opengroup.org/onlinepubs/009695399/utilities/mkfifo.html
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6
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7 config MKFIFO
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8 bool "mkfifo"
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9 default y
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10 help
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11 usage: mkfifo [-m mode] name...
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12
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13 Makes a named pipe at name.
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14
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15 -m mode The mode of the pipe(s) created by mkfifo. It defaults
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16 to 0644. This number is in octal, optionally preceded
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17 by a leading zero.
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18 */
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19
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20 #include "toys.h"
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21
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22 void mkfifo_main(void)
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23 {
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24 char *arg;
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25 int i;
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26 mode_t mode;
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27
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28 if (toys.optflags) {
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29 char *end;
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30 mode = (mode_t)strtol(toy.mkfifo.mode, &end, 8);
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31 if (end<=toy.mkfifo.mode || *end || mode<0 || mode>0777)
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32 error_exit("Invalid mode");
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33 } else mode = 0644;
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34
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35 umask(0);
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36 for (i = 0; (arg = toys.optargs[i]); i++)
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37 if (mkfifo(arg, mode))
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38 perror_exit(arg);
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39 }