From 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Sat, 12 Feb 2011 00:22:29 -0500
Subject: initial check-in, version 0.5.0

---
 src/temp/mktemp.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/temp/mktemp.c

(limited to 'src/temp/mktemp.c')

diff --git a/src/temp/mktemp.c b/src/temp/mktemp.c
new file mode 100644
index 00000000..8638e087
--- /dev/null
+++ b/src/temp/mktemp.c
@@ -0,0 +1,29 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include "libc.h"
+
+char *mktemp(char *template)
+{
+	static int lock;
+	static int index;
+	int l = strlen(template);
+
+	if (l < 6 || strcmp(template+l-6, "XXXXXX")) {
+		errno = EINVAL;
+		return NULL;
+	}
+	LOCK(&lock);
+	for (; index < 1000000; index++) {
+		snprintf(template+l-6, 6, "%06d", index);
+		if (access(template, F_OK) != 0) {
+			UNLOCK(&lock);
+			return template;
+		}
+	}
+	UNLOCK(&lock);
+	return NULL;	
+}
-- 
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