From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001
From: Vladimir Azarov <avm@intermediate-node.net>
Date: Tue, 1 Oct 2024 15:47:05 +0200
Subject: Initial version

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

(limited to 'src/stdio/tmpfile.c')

diff --git a/src/stdio/tmpfile.c b/src/stdio/tmpfile.c
new file mode 100644
index 0000000..2fa8803
--- /dev/null
+++ b/src/stdio/tmpfile.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include "stdio_impl.h"
+
+#define MAXTRIES 100
+
+FILE *tmpfile(void)
+{
+	char s[] = "/tmp/tmpfile_XXXXXX";
+	int fd;
+	FILE *f;
+	int try;
+	for (try=0; try<MAXTRIES; try++) {
+		__randname(s+13);
+		fd = sys_open(s, O_RDWR|O_CREAT|O_EXCL, 0600);
+		if (fd >= 0) {
+#ifdef SYS_unlink
+			__syscall(SYS_unlink, s);
+#else
+			__syscall(SYS_unlinkat, AT_FDCWD, s, 0);
+#endif
+			f = __fdopen(fd, "w+");
+			if (!f) __syscall(SYS_close, fd);
+			return f;
+		}
+	}
+	return 0;
+}
-- 
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