1 files changed, 8 insertions, 0 deletions
diff --git a/sqmail-4.3.07/src/tryflock.c b/sqmail-4.3.07/src/tryflock.c
new file mode 100644
index 0000000..b18743a
--- /dev/null
+++ b/sqmail-4.3.07/src/tryflock.c
@@ -0,0 +1,8 @@
+#include <sys/types.h>
+#include <sys/file.h>
+#include <fcntl.h>
+
+int main()
+{
+  flock(0,LOCK_EX | LOCK_UN | LOCK_NB);
+}