[7485] Added support for PostgreSQL connection using Unix sockets. Author: ApoC

For using socket connection specify host name as . and port as
    path to Unix socket directory or . for default path specified
    in PostgreSQL compile time.

--HG--
branch : trunk

src/mangosd/mangosd.conf.dist.in

@@ -25,11 +25,15 @@ ConfVersion=2008080101
 #    WorldDatabaseInfo
 #    CharacterDatabaseInfo
 #        Database connection settings for the world server.
-#        Default: hostname;port;username;password;database
+#        Default: 
-#                 .;somenumber;username;password;database - use named pipes at Windows
+#                ---MYSQL---
-#                    Named pipes: mySQL required adding "enable-named-pipe" to [mysqld] section my.ini
+#                    hostname;port;username;password;database
-#                .;/path/to/unix_socket;username;password;database - use Unix sockets at Unix/Linux
+#                    .;somenumber;username;password;database - use named pipes at Windows
-#                    Unix sockets: experimental, not tested
+#                        Named pipes: mySQL required adding "enable-named-pipe" to [mysqld] section my.ini
+#                    .;/path/to/unix_socket;username;password;database - use Unix sockets at Unix/Linux
+#                ---PGSQL---
+#                    hostname;port;username;password;database
+#                    .;/path/to/unix_socket/DIRECTORY or . for default path;username;password;database - use Unix sockets at Unix/Linux
 #
 #    MaxPingTime
 #        Settings for maximum database-ping interval (minutes between pings)

src/shared/Database/DatabasePostgre.cpp

@@ -79,14 +79,14 @@ bool DatabasePostgre::Initialize(const char *infoString)
 
     Tokens::iterator iter;
 
-    std::string host, port_or_socket, user, password, database;
+    std::string host, port_or_socket_dir, user, password, database;
 
     iter = tokens.begin();
 
     if(iter != tokens.end())
         host = *iter++;
     if(iter != tokens.end())
-        port_or_socket = *iter++;
+        port_or_socket_dir = *iter++;
     if(iter != tokens.end())
         user = *iter++;
     if(iter != tokens.end())
@@ -94,7 +94,10 @@ bool DatabasePostgre::Initialize(const char *infoString)
     if(iter != tokens.end())
         database = *iter++;
 
-    mPGconn = PQsetdbLogin(host.c_str(), port_or_socket.c_str(), NULL, NULL, database.c_str(), user.c_str(), password.c_str());
+    if (host == ".")
+        mPGconn = PQsetdbLogin(NULL, port_or_socket_dir == "." ? NULL : port_or_socket_dir.c_str(), NULL, NULL, database.c_str(), user.c_str(), password.c_str());
+    else
+        mPGconn = PQsetdbLogin(host.c_str(), port_or_socket_dir.c_str(), NULL, NULL, database.c_str(), user.c_str(), password.c_str());
 
     /* check to see that the backend connection was successfully made */
     if (PQstatus(mPGconn) != CONNECTION_OK)