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[sanitizer] Tests for scanf parser in allowGnuMalloc=false mode. 

llvm-svn: 174971
This commit is contained in:
Evgeniy Stepanov 2013-02-12 14:37:55 +00:00
parent e676f66fe3
commit 71a4ab7141
1 changed files with 30 additions and 7 deletions
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37
compiler-rt/lib/sanitizer_common/tests/sanitizer_scanf_interceptor_test.cc
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@ -28,21 +28,23 @@ static const char scanf_buf[] = "Test string.";
static size_t scanf_buf_size = sizeof(scanf_buf);
static const unsigned SCANF_ARGS_MAX = 16;
static void testScanf3(void *ctx, int result, const char *format, ...) {
static void testScanf3(void *ctx, int result, bool allowGnuMalloc,
const char *format, ...) {
va_list ap;
va_start(ap, format);
scanf_common(ctx, result, format, ap);
scanf_common(ctx, result, allowGnuMalloc, format, ap);
va_end(ap);
}
static void testScanf2(const char *format, int scanf_result, unsigned n,
static void testScanf2(const char *format, int scanf_result,
bool allowGnuMalloc, unsigned n,
va_list expected_sizes) {
std::vector<unsigned> scanf_sizes;
// 16 args should be enough.
testScanf3((void *)&scanf_sizes, scanf_result, format, scanf_buf, scanf_buf,
testScanf3((void *)&scanf_sizes, scanf_result, allowGnuMalloc, format,
scanf_buf, scanf_buf, scanf_buf, scanf_buf, scanf_buf, scanf_buf,
scanf_buf, scanf_buf, scanf_buf, scanf_buf, scanf_buf, scanf_buf,
scanf_buf, scanf_buf);
scanf_buf, scanf_buf, scanf_buf, scanf_buf);
ASSERT_EQ(n, scanf_sizes.size()) << "Unexpected number of format arguments: '"
<< format << "'";
for (unsigned i = 0; i < n; ++i)
@ -54,7 +56,7 @@ static void testScanf2(const char *format, int scanf_result, unsigned n,
static void testScanf(const char *format, unsigned n, ...) {
va_list ap;
va_start(ap, n);
testScanf2(format, SCANF_ARGS_MAX, n, ap);
testScanf2(format, SCANF_ARGS_MAX, /* allowGnuMalloc */ true, n, ap);
va_end(ap);
}
@ -62,7 +64,14 @@ static void testScanfPartial(const char *format, int scanf_result, unsigned n,
...) {
va_list ap;
va_start(ap, n);
testScanf2(format, scanf_result, n, ap);
testScanf2(format, scanf_result, /* allowGnuMalloc */ true, n, ap);
va_end(ap);
}
static void testScanfNoGnuMalloc(const char *format, unsigned n, ...) {
va_list ap;
va_start(ap, n);
testScanf2(format, SCANF_ARGS_MAX, /* allowGnuMalloc */ false, n, ap);
va_end(ap);
}
@ -137,6 +146,20 @@ TEST(SanitizerCommonInterceptors, Scanf) {
testScanf("%a13S", 1, std::min(F, P));
testScanf("%alS", 1, std::min(F, P));
testScanfNoGnuMalloc("s%Las", 1, LD);
testScanfNoGnuMalloc("%ar", 1, F);
testScanfNoGnuMalloc("%a[", 1, F);
testScanfNoGnuMalloc("%a[]", 1, F);
testScanfNoGnuMalloc("%a[]]", 1, F);
testScanfNoGnuMalloc("%a[abc]", 1, F);
testScanfNoGnuMalloc("%a[^abc]", 1, F);
testScanfNoGnuMalloc("%a[ab%c] %d", 3, F, C, I);
testScanfNoGnuMalloc("%a[^ab%c] %d", 3, F, C, I);
testScanfNoGnuMalloc("%as", 1, F);
testScanfNoGnuMalloc("%aS", 1, F);
testScanfNoGnuMalloc("%a13S", 1, F);
testScanfNoGnuMalloc("%alS", 1, F);
testScanf("%5$d", 0);
testScanf("%md", 0);
testScanf("%m10s", 0);