[LTP] [PATCH v4 3/5] shell: add kconfig parse api

[xuyang2018.jy@fujitsu.com]

Hi Petr

I find  ltp doesn't update wiki automatically. Or I miss something?

This occurs the last patch doesn't update doc when we merged a patchset.

Best Regards
Yang Xu
> Hi Cyril, Li, Petr
>
>> Hi!
>>> int main(int argc, char *argv[])
>>> {
>>>            char *str = argv[1];
>>>            char *delim = argv[2];
>>>            unsigned int i, cnt = 1;
>>>            int ret = 0;
>>>
>>>            if (argc == 2) {
>>>                    delim = ",";
>>>            } else if (argc == 3) {
>>>                    if (strlen(delim)>   1) {
>>>                            fprintf(stderr, "The delim must be a single
>>> character\n");
>>>                            return 1;
>>>                    }
>>>            } else {
>>>                    fprintf(stderr, "Please provide kernel kconfig list and
>>> delim "
>>>                                    "(optinal, default value is ',')\n");
>>>                    return 1;
>>>            }
>>
>> We can make the code a bit easier to read with a switch()
>>
>> 	switch (argc) {
>> 	case 2:
>> 		delim = ",";
>> 	break;
>> 	case 3:
>> 		if (strlen(delim)>   1) {
>> 			fprintf(stderr, "...");
>> 			return 1;
>> 		}
>> 	break;
>> 	default:
>> 		fprintf(stderr, "...");
>> 		return 1;
>> 	}
>>
>>
>>>            for (i = 0; str[i]; i++) {
>>>                    if (str[i] == delim[0])
>>>                            cnt++;
>>>            }
>>>
>>>            char **kconfigs = malloc(++cnt * sizeof(char *));
>>
>> It's unlikely that this will fail the allocation, but for the sake of
>> correctness we should also do:
>>
>> 	if (!kconfigs) {
>> 		fprintf(stderr, "malloc failed");
>> 		return 1;
>> 	}
>>
>>>            for (i = 0; i<   cnt; i++)
>>>                    kconfigs[i] = strtok_r(str, delim,&str);
>>>
>>>            if (tst_kconfig_check((const char * const*)kconfigs))
>>>                    ret = 1;
>>>
>>>            free(kconfigs);
>>>            return ret;
>>> }
>>
>> Other than the two minor issues this version looks good to me:
>
> I modify this patch with the above comment and also move tst_res into
> kconfig_skip_check in the 2nd patch. Then I pushed this patchset.
>
> Thanks for your patient review.
>
> Best Regards
> Yang Xu
>>
>> Reviewed-by: Cyril Hrubis<chrubis@suse.cz>
>>
>