debian man page for dns_mx

Query: dns_mx

OS: debian

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

dns_mx(3)						     Library Functions Manual							 dns_mx(3)

NAME
dns_mx - look up Mail eXchanger
SYNTAX
#include <dns.h> int dns_mx(stralloc* out,stralloc* fqdn);
DESCRIPTION
dns_mx looks up MX records for the fully-qualified domain name in fqdn. It puts the MX records into out and returns 0. Each MX record is a two-byte MX distance (big endian) followed by a -terminated dot-encoded domain name. If the domain does not exist in DNS, or has no MX records, out will be empty. If dns_mx 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_mx_packet(3), dns_ip4(3), dns_ip6(3) dns_mx(3)
Related Man Pages
dnsdomainname(1) - redhat
nisdomainname(1) - redhat
net::dns::domain(3) - centos
net::dns::domain(3) - osx
mail::milter::module::maildomaindotmx(3pm) - debian
Similar Topics in the Unix Linux Community
Configuring DNS MX record