Description:
------------
System: Custom Buildroot with BusyBox and uClibc

The function above (and maybe some more) are not threadsafe
http://linux.die.net/man/3/gethostbyname

Affected are at least 7 files:
php-7.0.3\ext\sockets\sockaddr_conv.c
php-7.0.3\ext\sockets\sockets.c
php-7.0.3\ext\standard\basic_functions.c
php-7.0.3\ext\standard\dns.c
php-7.0.3\main\fastcgi.c
php-7.0.3\main\network.c
php-7.0.3\win32\sendmail.c

A nice quote from network.c: (Btw i loved this comment!)
/* XXX NOT THREAD SAFE (is safe under win32) */
if(strlen(host) > MAXFQDNLEN) {
	host_info = NULL;
	errno = E2BIG;
} else {
	host_info = gethostbyname(host);
}

The question is if patches that move from gethostbyname to gethostbyname_r would be welcome?
If yes: Are any platform specifics i should take care of?

Test script:
---------------
Just use arbitary network functions which resolv DNS names. It will crash eventually.

Expected result:
----------------
No crash.

Actual result:
--------------
I'll hand one in later if required.