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/mkdtemp.c | 21 +++++++++++++++++++++
 src/temp/mkstemp.c | 26 ++++++++++++++++++++++++++
 src/temp/mktemp.c  | 29 +++++++++++++++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100644 src/temp/mkdtemp.c
 create mode 100644 src/temp/mkstemp.c
 create mode 100644 src/temp/mktemp.c

(limited to 'src/temp')

diff --git a/src/temp/mkdtemp.c b/src/temp/mkdtemp.c
new file mode 100644
index 00000000..f8b067ec
--- /dev/null
+++ b/src/temp/mkdtemp.c
@@ -0,0 +1,21 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include "libc.h"
+
+char *mkdtemp(char *template)
+{
+	for (;;) {
+		if (!mktemp(template)) return 0;
+		if (!mkdir(template, 0700)) return template;
+		if (errno != EEXIST) return 0;
+		/* this is safe because mktemp verified
+		 * that we have a valid template string */
+		strcpy(template+strlen(template)-6, "XXXXXX");
+	}
+}
diff --git a/src/temp/mkstemp.c b/src/temp/mkstemp.c
new file mode 100644
index 00000000..b1567191
--- /dev/null
+++ b/src/temp/mkstemp.c
@@ -0,0 +1,26 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include "libc.h"
+
+int mkstemp(char *template)
+{
+	int fd;
+retry:
+	if (!mktemp(template)) return -1;
+	fd = open(template, O_RDWR | O_CREAT | O_EXCL, 0600);
+	if (fd >= 0) return fd;
+	if (errno == EEXIST) {
+		/* this is safe because mktemp verified
+		 * that we have a valid template string */
+		strcpy(template+strlen(template)-6, "XXXXXX");
+		goto retry;
+	}
+	return -1;
+}
+
+LFS64(mkstemp);
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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