| dns_name4_domain(3) | Library Functions Manual | dns_name4_domain(3) |
dns_name4_domain - construct host name for reverse lookup
#include <dns.h>
void dns_name4_domain(char q[DNS_NAME4_DOMAIN],
const char* ip[4]);
dns_name4_domain is a low-level component of dns_name4. It converts an IP address such as 1.2.3.4 into a domain name such as 4.3.2.1.in-addr.arpa and places the packet-encoded domain name into q.
q is zero terminated.
q must have space for DNS_NAME4_DOMAIN bytes.