dns_ip4_packet - extract IPv4 address from DNS answer packet

       dns_ip4_packet  is  a  low-level  component  of dns_ip4, designed to support asynchronous DNS lookups. It
       reads a DNS packet of length len from buf, extracts IP addresses from the answer section of  the  packet,
       puts the addresses into out, and returns 0 or -1 the same way as dns_ip4.

       dns_ip4_packet - extract IPv4 address from DNS answer packet

dns_ip4(3), dns_ip6_packet(3)

                                                                                               dns_ip4_packet(3)

#include<libowfat/dns.h>

       int dns_ip4_packet(stralloc* out,const char* buf,
                          unsigned int len);