Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/winpr/libwinpr/utils/wlog/Message.c

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+/**
+ * WinPR: Windows Portable Runtime
+ * WinPR Logger
+ *
+ * Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <winpr/config.h>
+
+#include <winpr/crt.h>
+#include <winpr/path.h>
+#include <winpr/file.h>
+
+#include "wlog.h"
+
+#include "Message.h"
+
+char* WLog_Message_GetOutputFileName(int id, const char* ext)
+{
+	DWORD ProcessId = 0;
+	char* FilePath = nullptr;
+	char* FileName = nullptr;
+	char* FullFileName = nullptr;
+
+	if (!(FileName = (char*)malloc(256)))
+		return nullptr;
+
+	FilePath = GetKnownSubPath(KNOWN_PATH_TEMP, "wlog");
+
+	if (!winpr_PathFileExists(FilePath))
+	{
+		if (!winpr_PathMakePath(FilePath, nullptr))
+		{
+			free(FileName);
+			free(FilePath);
+			return nullptr;
+		}
+	}
+
+	ProcessId = GetCurrentProcessId();
+	if (id >= 0)
+		(void)sprintf_s(FileName, 256, "%" PRIu32 "-%d.%s", ProcessId, id, ext);
+	else
+		(void)sprintf_s(FileName, 256, "%" PRIu32 ".%s", ProcessId, ext);
+
+	FullFileName = GetCombinedPath(FilePath, FileName);
+
+	free(FileName);
+	free(FilePath);
+
+	return FullFileName;
+}