[msan] Intercept openpty and forkpty.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@245345 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 19 insertions, 0 deletions

diff --git a/test/msan/Linux/forkpty.cc b/test/msan/Linux/forkpty.cc
new file mode 100644
index 000000000..3d2bfc889
--- /dev/null
+++ b/test/msan/Linux/forkpty.cc
@@ -0,0 +1,19 @@
+// RUN: %clangxx_msan -O0 -g %s -lutil -o %t && %run %t
+// RUN: %clangxx_msan -O0 -g %s -Wl,-as-needed -lutil -o %t && %run %t
+#include <assert.h>
+#include <pty.h>
+
+#include <sanitizer/msan_interface.h>
+
+int
+main (int argc, char** argv)
+{
+  int master, slave;
+  openpty(&master, &slave, NULL, NULL, NULL);
+  assert(__msan_test_shadow(&master, sizeof(master)) == -1);
+  assert(__msan_test_shadow(&slave, sizeof(slave)) == -1);
+
+  int master2;
+  forkpty(&master2, NULL, NULL, NULL);
+  assert(__msan_test_shadow(&master2, sizeof(master2)) == -1);
+}