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authorRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
commit0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch)
tree6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/temp/mktemp.c
downloadmusl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz
initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/temp/mktemp.c')
-rw-r--r--src/temp/mktemp.c29
1 files changed, 29 insertions, 0 deletions
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;
+}