.TH dns_name4_domain 3
.SH NAME
dns_name4_domain \- construct host name for reverse lookup
.SH SYNTAX
.B #include <dns.h>

int \fBdns_name4_domain\fP(char \fIq\fR[DNS_NAME4_DOMAIN],
                     const char* \fIip\fR[4]);
.SH DESCRIPTION
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 \fIq\fR.
.SH "SEE ALSO"
dns_name4(3), dns_name6_domain(3)