1 files changed, 26 insertions, 0 deletions
diff --git a/test/sanitizer_common/TestCases/Posix/readlinkat.c b/test/sanitizer_common/TestCases/Posix/readlinkat.c
new file mode 100644
index 000000000000..0afb5efe6b5f
--- /dev/null
+++ b/test/sanitizer_common/TestCases/Posix/readlinkat.c
@@ -0,0 +1,26 @@
+// RUN: %clang -O0 %s -o %t && %run %t
+
+#include <assert.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+int main(int argc, char **argv) {
+  char symlink_path[PATH_MAX];
+  snprintf(symlink_path, sizeof(symlink_path), "%s_%d.symlink", argv[0],
+           getpid());
+  remove(symlink_path);
+  int res = symlink(argv[0], symlink_path);
+  assert(!res);
+
+  char readlinkat_path[PATH_MAX];
+  int res2 = readlinkat(AT_FDCWD, symlink_path, readlinkat_path,
+                        sizeof(readlinkat_path));
+  assert(res2 >= 0);
+  readlinkat_path[res2] = '\0';
+  assert(!strcmp(readlinkat_path, argv[0]));
+
+  return 0;
+}