blob: 66509a9c05a2336555dd6c1a408e5f30c666e12f
| 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * mkfifo implementation for busybox |
| 4 | * |
| 5 | * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org> |
| 6 | * |
| 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| 8 | */ |
| 9 | //config:config MKFIFO |
| 10 | //config: bool "mkfifo" |
| 11 | //config: default y |
| 12 | //config: help |
| 13 | //config: mkfifo is used to create FIFOs (named pipes). |
| 14 | //config: The 'mknod' program can also create FIFOs. |
| 15 | |
| 16 | //applet:IF_MKFIFO(APPLET_NOEXEC(mkfifo, mkfifo, BB_DIR_USR_BIN, BB_SUID_DROP, mkfifo)) |
| 17 | |
| 18 | //kbuild:lib-$(CONFIG_MKFIFO) += mkfifo.o |
| 19 | |
| 20 | /* BB_AUDIT SUSv3 compliant */ |
| 21 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/mkfifo.html */ |
| 22 | |
| 23 | //usage:#define mkfifo_trivial_usage |
| 24 | //usage: "[-m MODE] " IF_SELINUX("[-Z] ") "NAME" |
| 25 | //usage:#define mkfifo_full_usage "\n\n" |
| 26 | //usage: "Create named pipe\n" |
| 27 | //usage: "\n -m MODE Mode (default a=rw)" |
| 28 | //usage: IF_SELINUX( |
| 29 | //usage: "\n -Z Set security context" |
| 30 | //usage: ) |
| 31 | |
| 32 | #include "libbb.h" |
| 33 | #include "libcoreutils/coreutils.h" |
| 34 | |
| 35 | /* This is a NOEXEC applet. Be very careful! */ |
| 36 | |
| 37 | int mkfifo_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| 38 | int mkfifo_main(int argc UNUSED_PARAM, char **argv) |
| 39 | { |
| 40 | mode_t mode; |
| 41 | int retval = EXIT_SUCCESS; |
| 42 | |
| 43 | mode = getopt_mk_fifo_nod(argv); |
| 44 | |
| 45 | argv += optind; |
| 46 | if (!*argv) { |
| 47 | bb_show_usage(); |
| 48 | } |
| 49 | |
| 50 | do { |
| 51 | if (mkfifo(*argv, mode) < 0) { |
| 52 | bb_simple_perror_msg(*argv); /* Avoid multibyte problems. */ |
| 53 | retval = EXIT_FAILURE; |
| 54 | } |
| 55 | } while (*++argv); |
| 56 | |
| 57 | return retval; |
| 58 | } |
| 59 |