From 926669a2f5c516015876f845ef0c1ce29d27ca53 Mon Sep 17 00:00:00 2001
From: kervala <kervala@localhost>
Date: Sat, 2 Jan 2016 19:14:13 +0100
Subject: [PATCH] Fixed: Implements launchProgramAndWaitForResult to launch a
 command synchronously

---
 code/nel/include/nel/misc/common.h |  4 ++
 code/nel/src/misc/common.cpp       | 84 ++++++++++++++++++++++++++++++
 2 files changed, 88 insertions(+)

diff --git a/code/nel/include/nel/misc/common.h b/code/nel/include/nel/misc/common.h
index 10f6a97e6..028fc0b0d 100644
--- a/code/nel/include/nel/misc/common.h
+++ b/code/nel/include/nel/misc/common.h
@@ -349,6 +349,10 @@ std::string formatThousands(const std::string& s);
 /// The program will be launched in the current directory
 bool launchProgram (const std::string &programName, const std::string &arguments, bool log = true);
 
+/// This function executes a program and wait for result (used for example for crash report).
+/// The program will be launched in the current directory
+sint launchProgramAndWaitForResult (const std::string &programName, const std::string &arguments, bool log = true);
+
 /// This function executes a program and returns output as a string
 std::string getCommandOutput(const std::string &command);
 
diff --git a/code/nel/src/misc/common.cpp b/code/nel/src/misc/common.cpp
index 698f9d9ee..3f6a5c7b6 100644
--- a/code/nel/src/misc/common.cpp
+++ b/code/nel/src/misc/common.cpp
@@ -826,6 +826,90 @@ bool launchProgram(const std::string &programName, const std::string &arguments,
 
 	return false;
 
+sint launchProgramAndWaitForResult(const std::string &programName, const std::string &arguments, bool log)
+{
+	sint res = 0;
+
+#ifdef NL_OS_WINDOWS
+	STARTUPINFOA si;
+	PROCESS_INFORMATION pi;
+
+	memset(&si, 0, sizeof(si));
+	memset(&pi, 0, sizeof(pi));
+
+	si.cb = sizeof(si);
+
+	// Enable nlassert/nlstop to display the error reason & callstack
+	const TCHAR *SE_TRANSLATOR_IN_MAIN_MODULE = _T("NEL_SE_TRANS");
+	TCHAR envBuf [2];
+	if ( GetEnvironmentVariable( SE_TRANSLATOR_IN_MAIN_MODULE, envBuf, 2 ) != 0)
+	{
+		SetEnvironmentVariable( SE_TRANSLATOR_IN_MAIN_MODULE, NULL );
+	}
+
+	string arg = " " + arguments;
+	BOOL ok = CreateProcessA(programName.c_str(), (char*)arg.c_str(), NULL, NULL, FALSE, CREATE_DEFAULT_ERROR_MODE | CREATE_NO_WINDOW, NULL, NULL, &si, &pi);
+
+	if (ok)
+	{
+		// Successfully created the process.  Wait for it to finish.
+		WaitForSingleObject(pi.hProcess, INFINITE);
+
+		// Get the exit code.
+		DWORD exitCode = 0;
+		ok = GetExitCodeProcess(pi.hProcess, &exitCode);
+
+		//nldebug("LAUNCH: Successful launch '%s' with arg '%s'", programName.c_str(), arguments.c_str());
+		CloseHandle(pi.hProcess);
+		CloseHandle(pi.hThread);
+
+		if (ok)
+		{
+			res = (sint)exitCode;
+		}
+		else
+		{
+			if (log)
+				nlwarning("LAUNCH: Failed launched '%s' with arg '%s'", programName.c_str(), arguments.c_str());
+		}
+	}
+	else
+	{
+		LPVOID lpMsgBuf;
+		FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &lpMsgBuf, 0, NULL);
+
+		if (log)
+			nlwarning("LAUNCH: Failed launched '%s' with arg '%s' err %d: '%s'", programName.c_str(), arguments.c_str(), GetLastError(), lpMsgBuf);
+
+		LocalFree(lpMsgBuf);
+
+		CloseHandle(pi.hProcess);
+		CloseHandle(pi.hThread);
+	}
+#else
+	// save LD_LIBRARY_PATH
+	const char *previousEnv = getenv("LD_LIBRARY_PATH");
+
+	// clear LD_LIBRARY_PATH to avoid problems with Steam Runtime
+	setenv("LD_LIBRARY_PATH", "", 1);
+
+	// program name is the only required string
+	std::string command = programName;
+
+	// only appends arguments if any
+	if (!arguments.empty()) command += " " + arguments;
+
+	// execute the command
+	res = system(command.c_str());
+
+	// restore previous LD_LIBRARY_PATH
+	setenv("LD_LIBRARY_PATH", previousEnv, 1);
+
+	if (res && log)
+		nlwarning ("LAUNCH: Failed launched '%s' with arg '%s' return code %d", programName.c_str(), arguments.c_str(), res);
+#endif
+
+	return res;
 }
 
 std::string getCommandOutput(const std::string &command)