1 files changed, 64 insertions, 0 deletions

diff --git a/src/lib/libc/stdlib/mkstemp.c b/src/lib/libc/stdlib/mkstemp.c
new file mode 100644
index 0000000000..75a9d27d1a
--- /dev/null
+++ b/src/lib/libc/stdlib/mkstemp.c
@@ -0,0 +1,64 @@
+/*      $OpenBSD: mkstemp.c,v 1.1 2024/01/19 19:45:02 millert Exp $ */
+/*
+ * Copyright (c) 2024 Todd C. Miller
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/stat.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+
+#define MKOSTEMP_FLAGS  (O_APPEND | O_CLOEXEC | O_DSYNC | O_RSYNC | O_SYNC)
+
+static int
+mkstemp_cb(const char *path, int flags)
+{
+        flags |= O_CREAT | O_EXCL | O_RDWR;
+        return open(path, flags, S_IRUSR|S_IWUSR);
+}
+
+int
+mkostemps(char *path, int slen, int flags)
+{
+        if (flags & ~MKOSTEMP_FLAGS) {
+                errno = EINVAL;
+                return -1;
+        }
+        return __mktemp4(path, slen, flags, mkstemp_cb);
+}
+
+int
+mkostemp(char *path, int flags)
+{
+        if (flags & ~MKOSTEMP_FLAGS) {
+                errno = EINVAL;
+                return -1;
+        }
+        return __mktemp4(path, 0, flags, mkstemp_cb);
+}
+DEF_WEAK(mkostemp);
+
+int
+mkstemp(char *path)
+{
+        return __mktemp4(path, 0, 0, mkstemp_cb);
+}
+DEF_WEAK(mkstemp);
+
+int
+mkstemps(char *path, int slen)
+{
+        return __mktemp4(path, slen, 0, mkstemp_cb);
+}