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/temp/mkostemps.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 src/temp/mkostemps.c

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

diff --git a/src/temp/mkostemps.c b/src/temp/mkostemps.c
new file mode 100644
index 0000000..093d238
--- /dev/null
+++ b/src/temp/mkostemps.c
@@ -0,0 +1,28 @@
+#define _BSD_SOURCE
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+int __mkostemps(char *template, int len, int flags)
+{
+	size_t l = strlen(template);
+	if (l<6 || len>l-6 || memcmp(template+l-len-6, "XXXXXX", 6)) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	flags -= flags & O_ACCMODE;
+	int fd, retries = 100;
+	do {
+		__randname(template+l-len-6);
+		if ((fd = open(template, flags | O_RDWR | O_CREAT | O_EXCL, 0600))>=0)
+			return fd;
+	} while (--retries && errno == EEXIST);
+
+	memcpy(template+l-len-6, "XXXXXX", 6);
+	return -1;
+}
+
+weak_alias(__mkostemps, mkostemps);
-- 
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