| dns_ip4_packet(3) | Library Functions Manual | dns_ip4_packet(3) |
dns_ip4_packet - extract IPv4 address from DNS answer packet
#include <libowfat/dns.h>
int dns_ip4_packet(stralloc* out,const char*
buf,
unsigned int len);
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.