[U-Boot] [PATCH v3 1/4] Add run_command_list() to run a list of commands

Mike Frysinger vapier at gentoo.org
Sun Apr 1 21:48:46 CEST 2012


On Saturday 31 March 2012 03:30:55 Simon Glass wrote:
> --- a/common/cmd_pxe.c
> +++ b/common/cmd_pxe.c
> 
> +	return run_command_list(localcmd, strlen(localcmd), 0);

should be -1 instead of strlen()

> +int run_command_list(const char *cmd, int len, int flag)
> +{
> +	int need_buff = 1;
> +	char *buff = (char *)cmd;	/* cast away const */
> +	int rcode = 0;
> +
> +	if (len == -1) {
> +		len = strlen(cmd);
> +#ifdef CONFIG_SYS_HUSH_PARSER
> +		/* hush will never change our string */
> +		need_buff = 0;
> +#else
> +		/* the built-in parser will change our string if it sees \n */
> +		need_buff = strchr(cmd, '\n') != NULL;
> +#endif
> +	}

we have memchr(), so you should be able to split the len==-1 and the need_buff 
logic into two sep steps

also, should you handle the case where '\n' is the very last char ?  or not 
bother ?
-mike
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