dns_name6(3) Library Functions Manual dns_name6(3)
NAME
dns_name6 - look up host name
SYNTAX
#include <dns.h>
int dns_name6(stralloc* out,const char* ip[16]);
DESCRIPTION
dns_name6 looks up the domain name for the 16-byte IPv6 address in ip. It puts the (first) domain name into out and returns 0. If the rele-
vant ip6.arpa domain does not exist in DNS, or has no PTR records, out will be empty.
If dns_name6 has trouble with the DNS lookup or runs out of memory, it returns -1, setting errno appropriately. It may or may not change
out.
SEE ALSO
dns_name_packet(3), dns_name6_domain(3), dns_name4(3), dns_ip6(3)
dns_name6(3)
