1 files changed, 27 insertions, 0 deletions
diff --git a/src/stdio/tmpnam.c b/src/stdio/tmpnam.c
new file mode 100644
index 0000000..71dc8bb
--- /dev/null
+++ b/src/stdio/tmpnam.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <stdlib.h>
+#include "syscall.h"
+
+#define MAXTRIES 100
+
+char *tmpnam(char *buf)
+{
+	static char internal[L_tmpnam];
+	char s[] = "/tmp/tmpnam_XXXXXX";
+	int try;
+	int r;
+	for (try=0; try<MAXTRIES; try++) {
+		__randname(s+12);
+#ifdef SYS_readlink
+		r = __syscall(SYS_readlink, s, (char[1]){0}, 1);
+#else
+		r = __syscall(SYS_readlinkat, AT_FDCWD, s, (char[1]){0}, 1);
+#endif
+		if (r == -ENOENT) return strcpy(buf ? buf : internal, s);
+	}
+	return 0;
+}