From 60c2e3eb81abfaeea2c893d8a69d9b9802877d04 Mon Sep 17 00:00:00 2001
From: Charlie Shepherd <masterdriverz@gentoo.org>
Date: Wed, 7 Nov 2007 00:11:20 +0000
Subject: Add initial mkfifo implementation

---
 toys/Config.in | 11 +++++++++++
 toys/mkfifo.c  | 39 +++++++++++++++++++++++++++++++++++++++
 toys/toylist.h |  6 ++++++
 3 files changed, 56 insertions(+)
 create mode 100644 toys/mkfifo.c

diff --git a/toys/Config.in b/toys/Config.in
index fbc633fe..e9ab177d 100644
--- a/toys/Config.in
+++ b/toys/Config.in
@@ -189,6 +189,17 @@ config MKE2FS_EXTENDED
 	     journal_dev  Set by -J device=XXX
 	     sparse_super Don't allocate huge numbers of redundant superblocks
 
+config MKFIFO
+	bool "mkfifo"
+	default y
+	help
+	  usage: mkfifo [-m mode] name...
+
+	  Makes a named pipe at name.
+
+	  -m mode	The mode of the pipe(s) created by mkfifo. It defaults to 0644.
+				The format is in octal, optionally preceded by a leading zero.
+
 config ONEIT
 	bool "oneit"
 	default y
diff --git a/toys/mkfifo.c b/toys/mkfifo.c
new file mode 100644
index 00000000..f7cc5b6b
--- /dev/null
+++ b/toys/mkfifo.c
@@ -0,0 +1,39 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * mkfifo.c: Create a named pipe.
+ */
+
+#include "toys.h"
+
+int mkfifo_main(void)
+{
+	char *arg;
+	int i;
+	mode_t mode;
+
+	if (toys.optflags) {
+		long temp;
+		char *end;
+		int len = strlen(toy.mkfifo.mode);
+		temp = strtol(toy.mkfifo.mode, &end, 8);
+		switch (temp) {
+			case LONG_MAX:
+			case LONG_MIN:
+			case 0:
+				if (!errno)
+					break;
+				error_exit("Invalid mode");
+		}
+		if (temp > 0777 || *end || len < 3 || len > 4)
+			error_exit("Invalid mode");
+		mode = (mode_t)temp;
+	} else {
+		mode = 0644;
+	}
+
+	for (i = 0; (arg = toys.optargs[i]); i++)
+		if (mkfifo(arg, mode))
+			perror_exit(arg);
+
+	return 0;
+}
diff --git a/toys/toylist.h b/toys/toylist.h
index b717c93b..2c308ef7 100644
--- a/toys/toylist.h
+++ b/toys/toylist.h
@@ -61,9 +61,14 @@ struct toysh_data {
 	char *command;
 };
 
+struct mkfifo_data {
+	char *mode;
+};
+
 extern union toy_union {
 	struct df_data df;
 	struct mke2fs_data mke2fs;
+	struct mkfifo_data mkfifo;
 	struct sleep_data sleep;
 	struct touch_data touch;
 	struct toysh_data toysh;
@@ -104,6 +109,7 @@ USE_FALSE(NEWTOY(false, NULL, TOYFLAG_BIN))
 USE_HELLO(NEWTOY(hello, NULL, TOYFLAG_USR|TOYFLAG_BIN))
 USE_HELP(NEWTOY(help, "<1", TOYFLAG_BIN))
 USE_MKE2FS(NEWTOY(mke2fs, MKE2FS_OPTSTRING, TOYFLAG_SBIN))
+USE_MKFIFO(NEWTOY(mkfifo, "<1m:", TOYFLAG_BIN))
 USE_ONEIT(NEWTOY(oneit, "+<1p", TOYFLAG_SBIN))
 USE_PWD(NEWTOY(pwd, NULL, TOYFLAG_BIN))
 USE_READLINK(NEWTOY(readlink, "<1f", TOYFLAG_BIN))
-- 
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