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Different behaviour between git and 0.20.2 with wide char

Submitted by lock on

Hello everyone,
I come with a small question. Indeed, I'm using libraw in my project and everything is fine. However I recently found a small glitch if I use the git version and not the 0.20.2 version.

To handle wide char filenames I use a function to convert them and it was ok until now. It looks like the git version has changed some behaviour.

char* get_real_path(const char *source) {
	HANDLE hFile;
	DWORD maxchar = 2048;
 
	wchar_t *wsource = g_utf8_to_utf16(source, -1, NULL, NULL, NULL);
	if ( wsource == NULL ) {
		return NULL ;
	}
 
	if (!(GetFileAttributesW(wsource) & FILE_ATTRIBUTE_REPARSE_POINT)) { 
		g_free(wsource);
		return NULL;
	}
 
	wchar_t *wFilePath = g_new(wchar_t, maxchar + 1);
	if (!wFilePath) {
		PRINT_ALLOC_ERR;
		g_free(wsource);
		return NULL;
	}
	wFilePath[0] = 0;
 
	hFile = CreateFileW(wsource, GENERIC_READ, FILE_SHARE_READ, NULL,
			OPEN_EXISTING, 0, NULL);
	if (hFile == INVALID_HANDLE_VALUE) {
		g_free(wFilePath);
		g_free(wsource);
		return NULL;
	}
 
	GetFinalPathNameByHandleW(hFile, wFilePath, maxchar, 0);
 
	gchar *gFilePath = g_utf16_to_utf8(wFilePath + 4, -1, NULL, NULL, NULL); // +4 = enleve les 4 caracteres du prefixe "//?/"
	g_free(wsource);
	g_free(wFilePath);
	CloseHandle(hFile);
	return gFilePath;
}

Could you tell me more about that? Is it a bug? The only thing I change is the LibRaw version, nothing else. In one case I can open wide char filename, in other case I can't.

My best regards, and thanks again for your work.

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