gethostbyname_r: set correct h_errno upon failure
previously gethostbyname_r(ipv6.google.com);herror("ERROR:") gave
Answer name = |ipv6.google.com|
Answer type = |5|
herrno=1
h_errno=0
ERROR:: Error 0
herrno=1
h_errno=1
ERROR:: Unknown host
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>