server: free strduped port numbers

Although the leak is negligible, the clean heap on exit will ease
valgrind testing.

Change-Id: I3a7a9c8e8dc7557aa51d0b9caa244537e5e7007d
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4410
Tested-by: jenkins

src/openocd.c

@@ -345,6 +345,9 @@ int openocd_main(int argc, char *argv[])
 	/* Start the executable meat that can evolve into thread in future. */
 	ret = openocd_thread(argc, argv, cmd_ctx);
 
+	gdb_service_free();
+	server_free();
+
 	unregister_all_commands(cmd_ctx, NULL);
 
 	/* Shutdown commandline interface */

src/server/gdb_server.c

@@ -3572,3 +3572,9 @@ int gdb_register_commands(struct command_context *cmd_ctx)
 	gdb_port_next = strdup("3333");
 	return register_commands(cmd_ctx, NULL, gdb_command_handlers);
 }
+
+void gdb_service_free(void)
+{
+	free(gdb_port);
+	free(gdb_port_next);
+}

src/server/gdb_server.h

@@ -36,6 +36,7 @@ struct reg;
 
 int gdb_target_add_all(struct target *target);
 int gdb_register_commands(struct command_context *command_context);
+void gdb_service_free(void);
 
 int gdb_put_packet(struct connection *connection, char *buffer, int len);
 

src/server/server.c

@@ -641,6 +641,13 @@ int server_quit(void)
 	return last_signal;
 }
 
+void server_free(void)
+{
+	tcl_service_free();
+	telnet_service_free();
+	jsp_service_free();
+}
+
 void exit_on_signal(int sig)
 {
 #ifndef _WIN32

src/server/server.h

@@ -82,6 +82,7 @@ int add_service(char *name, const char *port,
 int server_preinit(void);
 int server_init(struct command_context *cmd_ctx);
 int server_quit(void);
+void server_free(void);
 void exit_on_signal(int);
 
 int server_loop(struct command_context *command_context);

src/server/tcl_server.c

@@ -359,3 +359,8 @@ int tcl_register_commands(struct command_context *cmd_ctx)
 	tcl_port = strdup("6666");
 	return register_commands(cmd_ctx, NULL, tcl_command_handlers);
 }
+
+void tcl_service_free(void)
+{
+	free(tcl_port);
+}

src/server/tcl_server.h

@@ -22,5 +22,6 @@
 
 int tcl_init(void);
 int tcl_register_commands(struct command_context *cmd_ctx);
+void tcl_service_free(void);
 
 #endif /* OPENOCD_SERVER_TCL_SERVER_H */

src/server/telnet_server.c

@@ -719,3 +719,8 @@ int telnet_register_commands(struct command_context *cmd_ctx)
 	telnet_port = strdup("4444");
 	return register_commands(cmd_ctx, NULL, telnet_command_handlers);
 }
+
+void telnet_service_free(void)
+{
+	free(telnet_port);
+}

src/server/telnet_server.h

@@ -64,5 +64,6 @@ struct telnet_service {
 
 int telnet_init(char *banner);
 int telnet_register_commands(struct command_context *command_context);
+void telnet_service_free(void);
 
 #endif /* OPENOCD_SERVER_TELNET_SERVER_H */

src/target/openrisc/jsp_server.c

@@ -242,3 +242,7 @@ int jsp_register_commands(struct command_context *cmd_ctx)
 	return register_commands(cmd_ctx, NULL, jsp_command_handlers);
 }
 
+void jsp_service_free(void)
+{
+	free(jsp_port);
+}

src/target/openrisc/jsp_server.h

@@ -13,5 +13,6 @@ struct jsp_service {
 
 int jsp_init(struct or1k_jtag *jtag_info, char *banner);
 int jsp_register_commands(struct command_context *cmd_ctx);
+void jsp_service_free(void);
 
 #endif /* OPENOCD_TARGET_OPENRISC_JSP_SERVER_H */