Simplify and improve handle_debug_level_comamnd:

- Bug fix: Return a syntax error if more than one argument is given.
- Bug fix: Use new parse_uint helper ensure debug_level parses correctly.
- Change: Display the debug_level after it has been set.
- Simplify bounds checking of debug_level.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2208 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/helper/log.c

@@ -194,18 +194,19 @@ void log_printf_lf(enum log_levels level, const char *file, int line, const char
  */
 int handle_debug_level_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 {
-	if (argc == 0)
+	if (argc == 1)
+	{
+		unsigned new_level;
+		int retval = parse_uint(args[0], &new_level);
+		if (ERROR_OK != retval)
+			return retval;
+		debug_level = MIN(new_level, LOG_LVL_DEBUG);
+	}
+	else if (argc > 1)
+		return ERROR_COMMAND_SYNTAX_ERROR;
+
 	command_print(cmd_ctx, "debug_level: %i", debug_level);
 
-	if (argc > 0)
-		debug_level = strtoul(args[0], NULL, 0);
-
-	if (debug_level < 0)
-		debug_level = 0;
-
-	if (debug_level > 3)
-		debug_level = 3;
-
 	if (debug_level >= LOG_LVL_DEBUG && server_use_pipes == 1)
 	{
 		/* if we are enabling debug info then we need to write to a log file