sbase/mkfifo.c
FRIGN 520d87e58e Audit mkfifo(1)
1) Fix usage()
2) Group local variables
3) Idiomatic argv-loop
4) BUGFIX: When the m-flag is specified, POSIX clearly says:
   "Set the file permission bits of the newly-created FIFO to the specified mode
   value."
   This means, that if mkfifo() fails for some reason, it should not try to
   chmod() the given path (which has been fixed with the "else if")
   A simple testcase is:

   $ touch testfile; mkfifo -m 000 testfile;

   GNU mkfifo(1): ls -l testfile
   -rw-r--r-- 1 testfile

   sbase mkfifo(1): ls -l testfile
   ---------- 1 testfile
5) Add blank line before return
2015-03-02 17:25:29 +01:00

48 lines
758 B
C

/* See LICENSE file for copyright and license details. */
#include <sys/stat.h>
#include <stdlib.h>
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s [-m mode] name ...\n", argv0);
}
int
main(int argc, char *argv[])
{
mode_t mode = 0, mask;
int mflag = 0, ret = 0;
ARGBEGIN {
case 'm':
mflag = 1;
mask = getumask();
mode = parsemode(EARGF(usage()), mode, mask);
break;
default:
usage();
} ARGEND;
if (!argc)
usage();
for (; *argv; argc--, argv++) {
if (mkfifo(*argv, S_IRUSR | S_IWUSR | S_IRGRP |
S_IWGRP | S_IROTH | S_IWOTH) < 0) {
weprintf("mkfifo %s:", *argv);
ret = 1;
} else if (mflag) {
if (chmod(*argv, mode) < 0) {
weprintf("chmod %s:", *argv);
ret = 1;
}
}
}
return ret;
}