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Re: [PATCH] apply: use strcmp(3) for comparing strings in gitdiff_verify_name()




On Jul 08 2017, René Scharfe <l.s.r@xxxxxx> wrote:

> Am 08.07.2017 um 13:08 schrieb Andreas Schwab:
>> On Jul 08 2017, René Scharfe <l.s.r@xxxxxx> wrote:
>>
>>> Avoid running over the end of another -- a C string whose length we
>>> don't know -- by using strcmp(3) instead of memcmp(3) for comparing it
>>> with another C string.
>>
>> That's not a good justification for the change, since memcmp never reads
>> past the differing characters.
>
> Interesting.  Where does that guarantee come from?

Sorry, I misremembered.  It's only memchr that has this restriction.

Andreas.

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