Windows: make invalid param errors recoverable by default (#3002)

* Tests: ensure writing to missing directory fails

Co-authored-by: Lovell Fuller <github@lovell.info>

src/sharp.cc

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 #include <napi.h>
+#include <cstdlib>
 #include <vips/vips8>
 
 #include "common.h"
@@ -21,6 +22,14 @@
 #include "utilities.h"
 #include "stats.h"
 
+#if defined(_MSC_VER) && _MSC_VER >= 1400  // MSVC 2005/8
+static void empty_invalid_parameter_handler(const wchar_t* expression,
+  const wchar_t* function, const wchar_t* file, unsigned int line,
+  uintptr_t reserved) {
+  // No-op.
+}
+#endif
+
 static void* sharp_vips_init(void*) {
   g_setenv("VIPS_MIN_STACK_SIZE", "2m", FALSE);
   vips_init("sharp");
@@ -34,6 +43,13 @@ Napi::Object init(Napi::Env env, Napi::Object exports) {
   g_log_set_handler("VIPS", static_cast<GLogLevelFlags>(G_LOG_LEVEL_WARNING),
     static_cast<GLogFunc>(sharp::VipsWarningCallback), nullptr);
 
+  // Tell the CRT to not exit the application when an invalid parameter is
+  // passed. The main issue is that invalid FDs will trigger this behaviour.
+  // See: https://github.com/libvips/libvips/pull/2571.
+#if defined(_MSC_VER) && _MSC_VER >= 1400  // MSVC 2005/8
+  _set_invalid_parameter_handler(empty_invalid_parameter_handler);
+#endif
+
   // Methods available to JavaScript
   exports.Set("metadata", Napi::Function::New(env, metadata));
   exports.Set("pipeline", Napi::Function::New(env, pipeline));