coreutils/mkdir.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Mini mkdir implementation for busybox
   4  *
   5  * Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
   6  *
   7  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
   8  */
   9 /* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
  10  *
  11  * Fixed broken permission setting when -p was used; especially in
  12  * conjunction with -m.
  13  */
  14 /* Nov 28, 2006      Yoshinori Sato <ysato@users.sourceforge.jp>: Add SELinux Support.
  15  */
  16 //config:config MKDIR
  17 //config:       bool "mkdir (4.7 kb)"
  18 //config:       default y
  19 //config:       help
  20 //config:       mkdir is used to create directories with the specified names.
  21
  22 //applet:IF_MKDIR(APPLET_NOFORK(mkdir, mkdir, BB_DIR_BIN, BB_SUID_DROP, mkdir))
  23
  24 //kbuild:lib-$(CONFIG_MKDIR) += mkdir.o
  25
  26 /* BB_AUDIT SUSv3 compliant */
  27 /* http://www.opengroup.org/onlinepubs/007904975/utilities/mkdir.html */
  28
  29 //usage:#define mkdir_trivial_usage
  30 //usage:       "[-m MODE] [-p] DIRECTORY..."
  31 //usage:#define mkdir_full_usage "\n\n"
  32 //usage:       "Create DIRECTORY\n"
  33 //usage:     "\n        -m MODE Mode"
  34 //usage:     "\n        -p      No error if exists; make parent directories as needed"
  35 //usage:        IF_SELINUX(
  36 //usage:     "\n        -Z      Set security context"
  37 //usage:        )
  38 //usage:
  39 //usage:#define mkdir_example_usage
  40 //usage:       "$ mkdir /tmp/foo\n"
  41 //usage:       "$ mkdir /tmp/foo\n"
  42 //usage:       "/tmp/foo: File exists\n"
  43 //usage:       "$ mkdir /tmp/foo/bar/baz\n"
  44 //usage:       "/tmp/foo/bar/baz: No such file or directory\n"
  45 //usage:       "$ mkdir -p /tmp/foo/bar/baz\n"
  46
  47 #include "libbb.h"
  48
  49 /* This is a NOFORK applet. Be very careful! */
  50
  51 int mkdir_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  52 int mkdir_main(int argc UNUSED_PARAM, char **argv)
  53 {
  54         long mode = -1;
  55         int status = EXIT_SUCCESS;
  56         int flags = 0;
  57         unsigned opt;
  58         char *smode;
  59 #if ENABLE_SELINUX
  60         security_context_t scontext;
  61 #endif
  62
  63         opt = getopt32long(argv, "m:pv" IF_SELINUX("Z:"),
  64                         "mode\0"    Required_argument "m"
  65                         "parents\0" No_argument       "p"
  66 # if ENABLE_SELINUX
  67                         "context\0" Required_argument "Z"
  68 # endif
  69 # if ENABLE_FEATURE_VERBOSE
  70                         "verbose\0" No_argument       "v"
  71 # endif
  72                         , &smode IF_SELINUX(,&scontext)
  73         );
  74         if (opt & 1) {
  75                 mode_t mmode = bb_parse_mode(smode, 0777);
  76                 if (mmode == (mode_t)-1) {
  77                         bb_error_msg_and_die("invalid mode '%s'", smode);
  78                 }
  79                 mode = mmode;
  80         }
  81         if (opt & 2)
  82                 flags |= FILEUTILS_RECUR;
  83         if ((opt & 4) && FILEUTILS_VERBOSE)
  84                 flags |= FILEUTILS_VERBOSE;
  85 #if ENABLE_SELINUX
  86         if (opt & 8) {
  87                 selinux_or_die();
  88                 setfscreatecon_or_die(scontext);
  89         }
  90 #endif
  91
  92         argv += optind;
  93         if (!argv[0])
  94                 bb_show_usage();
  95
  96         do {
  97                 if (bb_make_directory(*argv, mode, flags)) {
  98                         status = EXIT_FAILURE;
  99                 }
 100         } while (*++argv);
 101
 102         return status;
 103 }