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Implement -m option for mkdir

This commit is contained in:
sin 2013-08-31 22:51:25 +01:00
parent 36afa1e169
commit 4d014e66fd
2 changed files with 14 additions and 2 deletions
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4
mkdir.1
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@ -3,7 +3,7 @@
mkdir \- make directory mkdir \- make directory
.SH SYNOPSIS .SH SYNOPSIS
.B mkdir .B mkdir
.RB [ \-p ] .RB [ \-pm ]
.RI [ name ...] .RI [ name ...]
.SH DESCRIPTION .SH DESCRIPTION
.B mkdir .B mkdir
@ -13,5 +13,7 @@ creates the specified directories.
.B \-p .B \-p
creates any necessary parent directories, and does not fail if the target creates any necessary parent directories, and does not fail if the target
already exists. already exists.
.B \-m
set the file permission bits of the newly created directory.
.SH SEE ALSO .SH SEE ALSO
.IR mkdir (2) .IR mkdir (2)

12
mkdir.c
View File

@ -1,4 +1,5 @@
/* See LICENSE file for copyright and license details. */ /* See LICENSE file for copyright and license details. */
#include <sys/stat.h>
#include <errno.h> #include <errno.h>
#include <fcntl.h> #include <fcntl.h>
#include <stdbool.h> #include <stdbool.h>
@ -13,18 +14,24 @@ static void mkdirp(char *);
static void static void
usage(void) usage(void)
{ {
eprintf("usage: %s [-p] directory...\n", argv0); eprintf("usage: %s [-pm] directory...\n", argv0);
} }
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
bool pflag = false; bool pflag = false;
bool mflag = false;
int mode;
ARGBEGIN { ARGBEGIN {
case 'p': case 'p':
pflag = true; pflag = true;
break; break;
case 'm':
mflag = true;
mode = estrtol(EARGF(usage()), 10);
break;
default: default:
usage(); usage();
} ARGEND; } ARGEND;
@ -38,6 +45,9 @@ main(int argc, char *argv[])
} else if(mkdir(argv[0], S_IRWXU|S_IRWXG|S_IRWXO) == -1) { } else if(mkdir(argv[0], S_IRWXU|S_IRWXG|S_IRWXO) == -1) {
eprintf("mkdir %s:", argv[0]); eprintf("mkdir %s:", argv[0]);
} }
if (mflag)
if (chmod(argv[0], mode) < 0)
eprintf("chmod %s:", argv[0]);
} }
return 0; return 0;