MSVC fixes

Author: SamuelMarks

c89stringutils/c89stringutils_string_extras.c

@@ -22,12 +22,18 @@ extern void *mock_realloc(void *ptr, size_t size);
 extern int mock_vsnprintf(char *str, size_t size, const char *format,
                           va_list ap);
 extern char *mock_strerror(int errnum);
+#ifdef _MSC_VER
+extern int mock_strerror_s(char *buffer, size_t sizeInBytes, int errnum);
+#endif
 #define malloc mock_malloc
 #define realloc mock_realloc
 #define wtf_vsnprintf mock_vsnprintf
 #undef vsnprintf
 #define vsnprintf mock_vsnprintf
 #define strerror mock_strerror
+#ifdef _MSC_VER
+#define strerror_s mock_strerror_s
+#endif
 #endif
 
 #if defined(__GNUC__) && __GNUC__ >= 7 && !defined(__clang__)

c89stringutils/tests/test.c

@@ -52,6 +52,14 @@ char *mock_strerror(int errnum) {
   return strerror(errnum);
 }
 
+#ifdef _MSC_VER
+int mock_strerror_s(char *buffer, size_t sizeInBytes, int errnum) {
+  if (g_mock_strerror_null)
+    return 22; /* EINVAL */
+  return strerror_s(buffer, sizeInBytes, errnum);
+}
+#endif
+
 /* Add definitions that need to be in the test runner's main file. */
 GREATEST_MAIN_DEFS();