implementation of getpwnam_r

[David Leimbach]

It seems this already exists in src/contrib/bind/lib/getpwent_r.c

int getpwnam_r(const char * login, struct passwd *pwptr, char * buf, 
size_t buflen,
			struct passwd ** result)
{

	struct passwd *pw = getpwnam(login);
	int res;
	
	if (pw == NULL) {
		*result = NULL;
		return (0);
	}

	res = copy_passwd(pw,pwptr,buf,buflen);
	*result = res ? NULL : pwptr;
	return (res);
}

Is this sufficient?  copy_passwd is also in the bind library?

Should this be in several places like this?

Am I done? :)

Dave