Add mkntemp, atomic_symlink4

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/libposixplz/mkntemp.c b/src/libposixplz/mkntemp.c
new file mode 100644
index 0000000..42d542b
--- /dev/null
+++ b/src/libposixplz/mkntemp.c
@@ -0,0 +1,19 @@
+/* ISC license. */
+
+#include <unistd.h>
+#include <errno.h>
+
+#include <skalibs/posixplz.h>
+
+static int f (char const *fn, mode_t mode, void *data)
+{
+  (void)mode ;
+  (void)data ;
+  return access(fn, F_OK) == 0 ? (errno = EEXIST, -1) :
+    errno == ENOENT ? (errno = 0, 0) : -1 ;
+}
+
+int mkntemp (char *s)
+{
+  return mkfiletemp(s, &f, 0, 0) ;
+}