diff options
| -rw-r--r-- | ext/ffi_c/DynamicLibrary.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/ext/ffi_c/DynamicLibrary.c b/ext/ffi_c/DynamicLibrary.c index 9bfe86e..6c27ec6 100644 --- a/ext/ffi_c/DynamicLibrary.c +++ b/ext/ffi_c/DynamicLibrary.c @@ -225,8 +225,16 @@ dl_open(const char* name, int flags) static void dl_error(char* buf, int size) { - FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), - 0, buf, size, NULL); + // Get the last error code + DWORD error = GetLastError(); + + // Get the associated message + LPSTR message = NULL; + FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, + NULL, error, 0, (LPSTR)&message, 0, NULL); + + // Update the passed in buffer + snprintf(buf, size, "Failed with error %d: %s", error, message); } #endif |