diff options
| author | Matthew Dempsky <matthew@cvs.openbsd.org> | 2014-07-09 23:54:01 +0000 |
|---|---|---|
| committer | Matthew Dempsky <matthew@cvs.openbsd.org> | 2014-07-09 23:54:01 +0000 |
| commit | 69b05c81767360510212f66ff748a3cbc61c5268 (patch) | |
| tree | 002411b009fc65b1d0b36154a519835ab2798ff3 | |
| parent | 4cc85869f1e344d1d7205e9705c6445ad9db015d (diff) | |
Add some extra sanity checks to make sure the test functions actually
run on altstack.
| -rw-r--r-- | regress/lib/libc/explicit_bzero/explicit_bzero.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/regress/lib/libc/explicit_bzero/explicit_bzero.c b/regress/lib/libc/explicit_bzero/explicit_bzero.c index 658d2f1e51a..d1e4d1494e4 100644 --- a/regress/lib/libc/explicit_bzero/explicit_bzero.c +++ b/regress/lib/libc/explicit_bzero/explicit_bzero.c @@ -1,4 +1,4 @@ -/* $OpenBSD: explicit_bzero.c,v 1.3 2014/07/09 18:02:24 matthew Exp $ */ +/* $OpenBSD: explicit_bzero.c,v 1.4 2014/07/09 23:54:00 matthew Exp $ */ /* * Copyright (c) 2014 Google Inc. * @@ -39,6 +39,14 @@ setup_stack(void) } static void +assert_on_stack(void) +{ + stack_t cursigstk; + ASSERT_EQ(0, sigaltstack(NULL, &cursigstk)); + ASSERT_EQ(SS_ONSTACK, cursigstk.ss_flags & (SS_DISABLE|SS_ONSTACK)); +} + +static void call_on_stack(void (*fn)(int)) { /* @@ -106,14 +114,18 @@ static void test_without_bzero(int signo) { char buf[SECRETBYTES]; + assert_on_stack(); populate_secret(buf, sizeof(buf)); + ASSERT_NE(NULL, memmem(altstack, sizeof(altstack), buf, sizeof(buf))); } static void test_with_bzero(int signo) { char buf[SECRETBYTES]; + assert_on_stack(); populate_secret(buf, sizeof(buf)); + ASSERT_NE(NULL, memmem(altstack, sizeof(altstack), buf, sizeof(buf))); explicit_bzero(buf, sizeof(buf)); } |