LIBRESOLV(3LIB) Interface Libraries LIBRESOLV(3LIB)

NAME

libresolv - resolver library

SYNOPSIS

cc [ flag... ] file... -lresolv -lsocket -lnsl [ library... ]
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <resolv.h>
#include <netdb.h>

DESCRIPTION

Functions in this library provide for creating, sending, and
interpreting packets to the Internet domain name servers.

INTERFACES

The shared object libresolv.so.2 provides the public interfaces
defined below. See Intro(3) for additional information on shared
object interfaces.


__dn_skipname __fp_query
__hostalias __p_cdname
__p_class __p_query
__p_time __p_type
__putlong _getlong
_getshort _res
dn_comp dn_expand
fp_resstat h_errno
herror hstrerror
res_hostalias res_init
res_mkquery res_nclose
res_ninit res_nmkquery
res_nquery res_nquerydomain
res_nsearch res_nsend
res_nsendsigned res_query
res_querydomain res_search
res_send res_update


Programs are expected to use the aliases defined in <resolv.h>
rather than calling the "__" prefixed procedures, as indicated in the
following table. Use of the routines in the first column is
discouraged.


FUNCTION REFERENCED ALIAS TO USE
__dn_skipname dn_skipname
__fp_query fp_query
__putlong putlong
__p_cdname p_cdname
__p_class p_class
__p_time p_time
__p_type p_type

FILES

/lib/libresolv.so.1
shared object for backward compatibility
only


/lib/64/libresolv.so.1
64-bit shared object for backward
compatibility only


/lib/libresolv.so.2
shared object


/lib/64/libresolv.so.2
64-bit shared object

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------------+
|Interface Stability | Standard: BIND 8.2.4 |
+--------------------+-----------------------+
|MT-Level | See resolver(3RESOLV) |
+--------------------+-----------------------+

SEE ALSO

pvs(1), Intro(3), resolver(3RESOLV), attributes(7)

August 19, 2019 LIBRESOLV(3LIB)