Better type and bounds checking:

Better type and bounds checking:
* fake-addrinfo.h [NEED_FAKE_GETADDRINFO]: Include errno.h.
(fake_getnameinfo): Check that socklen_t size arguments are positive and fit in
size_t; return EAI_SYSTEM/EINVAL if not.  Use the size_t variants when calling
string functions.

Work around another AIX bug:
[_AIX]: Define NUMERIC_SERVICE_BROKEN.
[NUMERIC_SERVICE_BROKEN]: Include ctype.h and stdlib.h.
(getaddrinfo) [NUMERIC_SERVICE_BROKEN]: If the service name is a numeric
string, save its value and the socket type, pass a null pointer to the real
getaddrinfo, and patch the returned results.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@14995 dc483132-0cff-0310-8789-dd5450dbe970