Re: strdup(NULL) supposed to create SIGSEGV?

>Yes, it's supposed to segfault. Check out what, say, strcpy does if
>you ask it to copy a NULL pointer. And this is an improvement from the
>bad old days, when they would happily walk through memory starting at
>0.....
>Besides, errno is used to signal errors from system calls. strdup
>isn't a system call, it's a library function (says so at the top of
>the man page).
>Do you have examples of systems where strdup doesn't behave this way?

According to Open Group strdup should return NULL and set errno. Look at:
http://www.opengroup.org/onlinepubs/009695399/functions/strdup.html

There is no valid argument for doing segfault instead of above behavior.

      ____________________________________________________________________________________
Be a better friend, newshound, and 
know-it-all with Yahoo! Mobile.  Try it now.  http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
_______________________________________________
freebsd-hackers@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"