midfavila/sbase
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity

Implement -m for mkfifo(1)

Browse Source
This commit is contained in:
sin 2013-11-30 20:56:34 +00:00
parent 651dbdd700
commit 7808f4161d
2 changed files with 18 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
mkfifo.1
View File

@ -3,9 +3,17 @@
mkfifo \- make named pipe
.SH SYNOPSIS
.B mkfifo
.RI [ name ...]
.RB [ \-m
.IR mode ]
.I name ...
.SH DESCRIPTION
.B mkfifo
creates named pipes (FIFOs) with the given names.
.SH OPTIONS
.TP
.B \-m
Set the file permission bits of newly created FIFOs to mode. The mode
is specified in octal as we do not currently support all the formats that
the chmod(1) utility supports.
.SH SEE ALSO
.IR mkfifo (3)

15
mkfifo.c
View File

@ -8,13 +8,19 @@
static void
usage(void)
{
eprintf("usage: %s name...\n", argv0);
eprintf("usage: %s [-m mode] name...\n", argv0);
}
int
main(int argc, char *argv[])
{
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP |
S_IWGRP | S_IROTH | S_IWOTH;
ARGBEGIN {
case 'm':
mode = estrtol(EARGF(usage()), 8);
break;
default:
usage();
} ARGEND;
@ -22,12 +28,9 @@ main(int argc, char *argv[])
if (argc < 1)
usage();
for(; argc > 0; argc--, argv++) {
if(mkfifo(argv[0], S_IRUSR|S_IWUSR|S_IRGRP|\
S_IWGRP|S_IROTH|S_IWOTH) == -1) {
for(; argc > 0; argc--, argv++)
if(mkfifo(argv[0], mode) == -1)
eprintf("mkfifo %s:", argv[0]);
}
}
return EXIT_SUCCESS;
}