Disable fatal assertions in Windows printf tests
The Windows CRT treats any invalid format specifiers passed to the CRT
as fatal assertion failures. Disable thie behaviour temporarily while
testing if the format specifiers we use are supported.
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/tests/suites/test_suite_debug.function b/tests/suites/test_suite_debug.function
index 6c58d56..ed3505a 100644
--- a/tests/suites/test_suite_debug.function
+++ b/tests/suites/test_suite_debug.function
@@ -2,6 +2,11 @@
#include "mbedtls/debug.h"
#include "string.h"
+#if defined(_WIN32)
+# include <stdlib.h>
+# include <crtdbg.h>
+#endif
+
struct buffer_data {
char buf[2000];
char *ptr;
@@ -44,6 +49,23 @@
buffer->ptr = p;
}
#endif /* MBEDTLS_SSL_TLS_C */
+
+#if defined(_WIN32)
+static void noop_invalid_parameter_handler(
+ const wchar_t *expression,
+ const wchar_t *function,
+ const wchar_t *file,
+ unsigned int line,
+ uintptr_t pReserved)
+{
+ (void) expression;
+ (void) function;
+ (void) file;
+ (void) line;
+ (void) pReserved;
+}
+#endif /* _WIN32 */
+
/* END_HEADER */
/* BEGIN_DEPENDENCIES
@@ -55,6 +77,17 @@
void printf_int_expr(intmax_t smuggle_format_expr, /* TODO: teach test framework about string expressions */
intmax_t sizeof_x, intmax_t x, char *result)
{
+#if defined(_WIN32)
+ /* Windows treats any invalid format specifiers passsed to the CRT as fatal assertion failures.
+ Disable this behaviour temporarily, so the rest of the test cases can complete. */
+ _invalid_parameter_handler saved_handler =
+ _set_invalid_parameter_handler(noop_invalid_parameter_handler);
+
+ // Disable assertion pop-up window in Debug builds
+ int saved_report_mode = _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_REPORT_MODE);
+ _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);
+#endif
+
const char *format = (char *) ((uintptr_t) smuggle_format_expr);
char *output = NULL;
const size_t n = strlen(result);
@@ -76,6 +109,13 @@
exit:
mbedtls_free(output);
output = NULL;
+
+#if defined(_WIN32)
+ // Restore default Windows behaviour
+ _set_invalid_parameter_handler(saved_handler);
+ _CrtSetReportMode(_CRT_ASSERT, saved_report_mode);
+ (void) saved_report_mode;
+#endif
}
/* END_CASE */