1 files changed, 19 insertions, 0 deletions
diff --git a/test/Analysis/unix-fns.c b/test/Analysis/unix-fns.c
new file mode 100644
index 0000000..777ad19
--- /dev/null
+++ b/test/Analysis/unix-fns.c
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -analyze -analyzer-check-objc-mem %s -analyzer-store=region
+// RUN: %clang_cc1 -analyze -analyzer-check-objc-mem %s -analyzer-store=basic
+
+#ifndef O_CREAT
+#define O_CREAT 0x0200
+#define O_RDONLY 0x0000
+#endif
+int open(const char *, int, ...);
+
+void test_open(const char *path) {
+  int fd;
+  fd = open(path, O_RDONLY); // no-warning
+  if (!fd)
+    close(fd);
+
+  fd = open(path, O_CREAT); // expected-warning{{Call to 'open' requires a third argument when the 'O_CREAT' flag is set}}
+  if (!fd)
+    close(fd);
+}