fix for #1210

include/errmsg.h:
  Error code added
libmysql/errmsg.c:
  Error message added
libmysqld/lib_sql.cc:
  static inited variable changed to global server_inited
libmysqld/libmysqld.c:
  check for mysql_server_init execution added

include/errmsg.h

@@ -86,3 +86,4 @@ extern const char *client_errors[];	/* Error messages */
 #define CR_SHARED_MEMORY_CONNECT_SET_ERROR      2045
 #define CR_CONN_UNKNOW_PROTOCOL 		2046
 #define CR_INVALID_CONN_HANDLE			2047
+#define CR_MYSQL_SERVER_INIT_MISSED             2048

libmysql/errmsg.c

@@ -71,7 +71,8 @@ const char *client_errors[]=
   "Can't open shared memory. Server abandoded and don't sent the answer event (%lu)",
   "Can't open shared memory. Can't send the request event to server (%lu)",
   "Wrong or unknown protocol",
-  "Invalid connection handle"
+  "Invalid connection handle",
+  "mysql_server_init wasn't called"
 };
 
 /* Start of code added by Roberto M. Serqueira - martinsc@uol.com.br - 05.24.2001 */
@@ -126,7 +127,8 @@ const char *client_errors[]=
   "Can't open shared memory. Server abandoded and don't sent the answer event (%lu)",
   "Can't open shared memory. Can't send the request event to server (%lu)",
   "Wrong or unknown protocol",
-  "Invalid connection handle"
+  "Invalid connection handle",
+  "mysql_server_init wasn't called"
 };
 
 #else /* ENGLISH */
@@ -179,7 +181,8 @@ const char *client_errors[]=
   "Can't open shared memory. Server abandoded and don't sent the answer event (%lu)",
   "Can't open shared memory. Can't send the request event to server (%lu)",
   "Wrong or unknown protocol",
-  "Invalid connection handle"
+  "Invalid connection handle",
+  "mysql_server_init wasn't called"
 };
 #endif
 

libmysqld/lib_sql.cc

@@ -26,7 +26,8 @@
 static int fake_argc= 1;
 static char *fake_argv[]= {(char *)"", 0};
 static const char *fake_groups[] = { "server", "embedded", 0 };
-static char inited, org_my_init_done;
+static char org_my_init_done;
+char server_inited;
 
 #if defined (__WIN__)
 #include "../sql/mysqld.cpp"
@@ -181,9 +182,9 @@ int STDCALL mysql_server_init(int argc, char **argv, char **groups)
 
 
   /* Only call MY_INIT() if it hasn't been called before */
-  if (!inited)
+  if (!server_inited)
   {
-    inited=1;
+    server_inited=1;
     org_my_init_done=my_init_done;
   }
   if (!org_my_init_done)

libmysqld/libmysqld.c

@@ -79,6 +79,8 @@ struct passwd *getpwuid(uid_t);
 char* getlogin(void);
 #endif
 
+extern char server_inited;
+
 #ifdef __WIN__
 static my_bool is_NT(void)
 {
@@ -210,6 +212,20 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
 		      db ? db : "(Null)",
 		      user ? user : "(Null)"));
 
+#ifdef EMBEDDED_LIBRARY
+  /*
+    Here we check that mysql_server_init was called before.
+    Actually we can perform the test for client (not embedded) library as well.
+    But i'm afraid some old applications will be broken then.
+  */
+  if (!server_inited)
+  {
+    mysql->net.last_errno=CR_MYSQL_SERVER_INIT_MISSED;
+    strmov(mysql->net.last_error,ER(mysql->net.last_errno));
+    goto error;
+  }
+#endif /*EMBEDDED_LIBRARY*/
+
   if (mysql->options.methods_to_use == MYSQL_OPT_USE_REMOTE_CONNECTION)
     cli_mysql_real_connect(mysql, host, user, 
 			   passwd, db, port, unix_socket, client_flag);