Re: [LTP] [PATCH] safe_macros: add SAFE_STRTOL

[Caspar Zhang <caspar@casparzhang.com>]

On 02/09/2012 05:30 PM, Wanlong Gao wrote:
> On 02/09/2012 04:13 PM, Caspar Zhang wrote:
> 
>> +
>> +long safe_strtol(const char *file, const int lineno,
>> +	    void (cleanup_fn)(void), char *str, long min, long max)
>> +{
>> +	int rval;
>> +	char *endptr;
>> +
>> +	rval = strtol(str, &endptr, 10);
>> +	if (rval == LONG_MAX || rval == LONG_MIN)
> 
> 
> Shouldn't we check the errno here?

Ah yes. I'll make a v2 soon.

> 
> Thanks
> -Wanlong Gao
> 
>> +		tst_brkm(TBROK|TERRNO, cleanup_fn, "strtol failed at %s:%d",
>> +			 file, lineno);
>> +	if (rval >= max || rval <= min)
>> +		tst_brkm(TBROK, cleanup_fn,
>> +			 "converted value out of range: %ld - %ld",
>> +			 min, max);
>> +	if (endptr == str || (*endptr != '\0' && *endptr != '\n'))
>> +		tst_brkm(TBROK, cleanup_fn, "Invalid value: %s", str);
>> +
>> +	return rval;
>> +}
> 
> 


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