add mkfifo

mkfifo.c

@@ -0,0 +1,17 @@
+/* See LICENSE file for copyright and license details. */
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include "util.h"
+
+int
+main(int argc, char *argv[])
+{
+	while(getopt(argc, argv, "") != -1)
+		exit(EXIT_FAILURE);
+	for(; optind < argc; optind++)
+		if(mkfifo(argv[optind], S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) != 0)
+			eprintf("mkfifo %s:", argv[optind]);
+	return EXIT_SUCCESS;
+}