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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: How to copy a string safely and efficiently in C?
Date: Sun, 04 Sep 2016 23:20:18 -0700
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Tim Rentsch <txr@alumni.caltech.edu> writes:
> Ben Bacarisse <ben.usenet@bsb.me.uk> writes:
[...]
>>   char copy[STR_SIZE];
>>   *copy = 0;
>>   strncat(copy, src, STR_SIZE - 1);
>
> Or maybe this (with the same declaration of 'copy')
>
>     strncat( strcpy( copy, "" ), src, STR_SIZE-1 );

Interesting.  It's easy to forget that strcpy() returns a result,
since that result is rarely useful and usually ignored.

(I'm resisting the temptation to repeat the warning that simple
truncation isn't always the correct response to an overflow.)

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"