Make Configuration take a std::string filename instead of a char array,

in C++ style.

Add a function to get default config file paths at runtime, dependent on
the location of the executable being run.

Pass the config file name directly to Daemon::Main, instead of faking argv.

No default raid file path at compile time on Windows, depends on
executable location when run.

Determine RaidFile path at runtime if not supplied in config file
on Windows.

Don't define default locations for config files at compile time on Windows,
provide macros to determine them at runtime instead.

Make FileHandleGuard take a std::string instead of a char array, C++ style.

Determine config file location at runtime instead of hard-coding on
Windows. Thanks to Paul MacKenzie, Per Thomsen, Pete Jalajas, Stuart
Sanders, Dave Bamford and Gary for pushing me to do this. (fixes #12)

Determine config file path at runtime. Call Daemon::Main with config file
name instead of building fake argv.

(refs #3, merges [1684] [1685] [1686] [1687] [1688] [1689] [1690]
[1691] [1692])

5 files changed, 83 insertions, 28 deletions

diff --git a/lib/backupstore/BackupStoreConfigVerify.cpp b/lib/backupstore/BackupStoreConfigVerify.cpp
index 6fa05d06..784adfb8 100644
--- a/lib/backupstore/BackupStoreConfigVerify.cpp
+++ b/lib/backupstore/BackupStoreConfigVerify.cpp
@@ -35,7 +35,13 @@ static const ConfigurationVerifyKey verifyrootkeys[] =
 	{"AccountDatabase",	0, ConfigTest_Exists, 0},
 	{"TimeBetweenHousekeeping",	0, ConfigTest_Exists | ConfigTest_IsInt, 0},
 	{"ExtendedLogging",	"no", ConfigTest_IsBool, 0},			// make value "yes" to enable in config file
-	{"RaidFileConf",	BOX_FILE_RAIDFILE_DEFAULT_CONFIG, ConfigTest_LastEntry, 	0}
+
+	#ifdef WIN32
+		{"RaidFileConf", "", ConfigTest_LastEntry, 0}
+	#else
+		{"RaidFileConf", BOX_FILE_RAIDFILE_DEFAULT_CONFIG, ConfigTest_LastEntry, 0}
+	#endif
+
 };
 
 const ConfigurationVerify BackupConfigFileVerify =
diff --git a/lib/common/BoxPortsAndFiles.h b/lib/common/BoxPortsAndFiles.h
index 562c6724..a6ca9f6d 100644
--- a/lib/common/BoxPortsAndFiles.h
+++ b/lib/common/BoxPortsAndFiles.h
@@ -14,20 +14,27 @@
 
 
 // Backup store daemon
-#define BOX_PORT_BBSTORED					(BOX_PORT_BASE+1)
-#define BOX_FILE_BBSTORED_DEFAULT_CONFIG	"/etc/box/bbstored.conf"
+#define BOX_PORT_BBSTORED			(BOX_PORT_BASE+1)
+
 // directory within the RAIDFILE root for the backup store daemon
-#define BOX_RAIDFILE_ROOT_BBSTORED			"backup"
+#define BOX_RAIDFILE_ROOT_BBSTORED		"backup"
 
-// Backup client daemon
+// configuration file paths
 #ifdef WIN32
-#define BOX_FILE_BBACKUPD_DEFAULT_CONFIG	"C:\\Program Files\\Box Backup\\bbackupd.conf"
+	// no default config file path, use these macros to call
+	// GetDefaultConfigFilePath() instead.
+
+	#define BOX_GET_DEFAULT_BBACKUPD_CONFIG_FILE \
+		GetDefaultConfigFilePath("bbackupd.conf").c_str()
+	#define BOX_GET_DEFAULT_RAIDFILE_CONFIG_FILE \
+		GetDefaultConfigFilePath("raidfile.conf").c_str()
+	#define BOX_GET_DEFAULT_BBSTORED_CONFIG_FILE \
+		GetDefaultConfigFilePath("bbstored.conf").c_str()
 #else
 #define BOX_FILE_BBACKUPD_DEFAULT_CONFIG	"/etc/box/bbackupd.conf"
-#endif
-
-// RaidFile conf location default
 #define BOX_FILE_RAIDFILE_DEFAULT_CONFIG	"/etc/box/raidfile.conf"
+#define BOX_FILE_BBSTORED_DEFAULT_CONFIG 	"/etc/box/bbstored.conf"
+#endif
 
 // Default name of the named pipe
 #define BOX_NAMED_PIPE_NAME L"\\\\.\\pipe\\boxbackup"
diff --git a/lib/common/Guards.h b/lib/common/Guards.h
index fbcfedaf..d2fb84e0 100644
--- a/lib/common/Guards.h
+++ b/lib/common/Guards.h
@@ -32,13 +32,13 @@ template <int flags = O_RDONLY | O_BINARY, int mode = (S_IRUSR | S_IWUSR | S_IRG
 class FileHandleGuard
 {
 public:
-	FileHandleGuard(const char *filename)
-		: mOSFileHandle(::open(filename, flags, mode))
+	FileHandleGuard(const std::string& rFilename)
+		: mOSFileHandle(::open(rFilename.c_str(), flags, mode))
 	{
 		if(mOSFileHandle < 0)
 		{
 			BOX_ERROR("FileHandleGuard: failed to open file '" <<
-				filename << "': " << strerror(errno));
+				rFilename << "': " << strerror(errno));
 			THROW_EXCEPTION(CommonException, OSFileOpenError)
 		}
 	}
diff --git a/lib/win32/emu.cpp b/lib/win32/emu.cpp
index 4224d62e..1a6b0e79 100644
--- a/lib/win32/emu.cpp
+++ b/lib/win32/emu.cpp
@@ -218,6 +218,44 @@ bool EnableBackupRights( void )
 	}
 }
 
+// forward declaration
+char* ConvertFromWideString(const WCHAR* pString, unsigned int codepage);
+
+// --------------------------------------------------------------------------
+//
+// Function
+//		Name:    GetDefaultConfigFilePath(std::string name)
+//		Purpose: Calculates the default configuration file name,
+//			 by using the directory location of the currently
+//			 executing program, and appending the provided name.
+//			 In case of fire, returns an empty string.
+//		Created: 26th May 2007
+//
+// --------------------------------------------------------------------------
+std::string GetDefaultConfigFilePath(const std::string& rName)
+{
+	WCHAR exePathWide[MAX_PATH];
+	GetModuleFileNameW(NULL, exePathWide, MAX_PATH-1);
+
+	char* exePathUtf8 = ConvertFromWideString(exePathWide, CP_UTF8);
+	if (exePathUtf8 == NULL)
+	{
+		return "";
+	}
+
+	std::string configfile = exePathUtf8;
+	delete [] exePathUtf8;
+	
+	// make the default config file name,
+	// based on the program path
+	configfile = configfile.substr(0,
+		configfile.rfind('\\'));
+	configfile += "\\";
+	configfile += rName;
+
+	return configfile;
+}
+
 // --------------------------------------------------------------------------
 //
 // Function
@@ -1252,15 +1290,15 @@ BOOL AddEventSource
 	// Work out the executable file name, to register ourselves
 	// as the event source
 
-	char cmd[MAX_PATH];
-	if (GetModuleFileName(NULL, cmd, sizeof(cmd)-1) == 0)
+	WCHAR cmd[MAX_PATH];
+	DWORD len = GetModuleFileNameW(NULL, cmd, MAX_PATH);
+
+	if (len == 0)
 	{
 		::syslog(LOG_ERR, "Failed to get the program file name: %s",
 			GetErrorMessage(GetLastError()).c_str());
 		return FALSE;
 	}
-	cmd[sizeof(cmd)-1] = 0;
- 	std::string exepath(cmd);
 
 	// Create the event source as a subkey of the log. 
 
@@ -1282,12 +1320,12 @@ BOOL AddEventSource
 
 	// Set the name of the message file. 
  
-	if (RegSetValueEx(hk,                // subkey handle 
-			 "EventMessageFile", // value name 
-			 0,                  // must be zero 
-			 REG_EXPAND_SZ,      // value type 
-			 (LPBYTE) exepath.c_str(),  // pointer to value data 
-			 (DWORD) (exepath.size()))) // data size
+	if (RegSetValueExW(hk,                 // subkey handle 
+			   L"EventMessageFile", // value name 
+			   0,                  // must be zero 
+			   REG_EXPAND_SZ,      // value type 
+			   (LPBYTE)cmd,        // pointer to value data 
+			   len*sizeof(WCHAR))) // data size
 	{
 		::syslog(LOG_ERR, "Failed to set the event message file: %s",
 			GetErrorMessage(GetLastError()).c_str());
@@ -1315,12 +1353,12 @@ BOOL AddEventSource
  
 	// Set the category message file and number of categories.
 
-	if (RegSetValueEx(hk,                        // subkey handle 
-			  "CategoryMessageFile",     // value name 
-			  0,                         // must be zero 
-			  REG_EXPAND_SZ,             // value type 
-			  (LPBYTE) exepath.c_str(),  // pointer to value data 
-			  (DWORD) (exepath.size()))) // data size
+	if (RegSetValueExW(hk,                    // subkey handle 
+			   L"CategoryMessageFile", // value name 
+			   0,                     // must be zero 
+			   REG_EXPAND_SZ,         // value type 
+			   (LPBYTE)cmd,           // pointer to value data 
+			   len*sizeof(WCHAR)))    // data size
 	{
 		::syslog(LOG_ERR, "Failed to set the category message file: "
 			"%s", GetErrorMessage(GetLastError()).c_str());
diff --git a/lib/win32/emu.h b/lib/win32/emu.h
index 1f078c14..8ab74130 100644
--- a/lib/win32/emu.h
+++ b/lib/win32/emu.h
@@ -377,6 +377,10 @@ bool ConvertFromUtf8 (const std::string& rSource, std::string& rDest,
 bool ConvertUtf8ToConsole(const char* pString, std::string& rDest);
 bool ConvertConsoleToUtf8(const char* pString, std::string& rDest);
 
+// Utility function which returns a default config file name,
+// based on the path of the current executable.
+std::string GetDefaultConfigFilePath(const std::string& rName);
+
 // GetErrorMessage() returns a system error message, like strerror() 
 // but for Windows error codes.
 std::string GetErrorMessage(DWORD errorCode);