[PATCH 6/7] dhcp: add retries limit support

[Sascha Hauer]

On Wed, Sep 12, 2012 at 04:48:27PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> via -r opt, global.dhcp.retries or dhcp_retries
> 
> set the priority order;
> 
> This will allow to do not stay infinite loop if no dhcp availlable

s/availlable/available/

> @@ -746,11 +767,17 @@ static int do_dhcp(int argc, char *argv[])
>  	while (dhcp_state != BOUND) {
>  		if (ctrlc())
>  			break;
> +		if (!retries) {
> +			ret = ETIMEDOUT;

-ETIMEDOUT

BTW currently we have in most commands:

	return ret ? 1 : 0;

This is because the shell interpreted negative values as 'exit'. hush
does not do this anymore, so now we can think about a path to just
return negative error codes from the commands.


> @@ -785,7 +812,8 @@ BAREBOX_CMD_HELP_OPT  ("-u <client_uuid>",
>  BAREBOX_CMD_HELP_OPT  ("-U <user_class>",
>  "DHCP User class (code 77) submitted in DHCP requests. It can\n"
>  "be used in the DHCP server's configuration to select options\n"
> -"(e.g. bootfile or server) which are valid for barebox clients only.\n");
> +"(e.g. bootfile or server) which are valid for barebox clients only.\n")
> +BAREBOX_CMD_HELP_OPT  ("-r <retry>", "retry limi\n");

s/limi/limit/

Sascha

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