1 '\" te
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   6 .TH LIBRESOLV 3LIB "Aug 19, 2019"
   7 .SH NAME
   8 libresolv \- resolver library
   9 .SH SYNOPSIS
  10 .nf
  11 cc [ \fIflag\fR... ] \fIfile\fR... \fB-lresolv\fR \fB-lsocket\fR \fB-lnsl\fR [ \fIlibrary\fR... ]
  12 #include <\fBsys/types.h\fR>
  13 #include <\fBnetinet/in.h\fR>
  14 #include <\fBarpa/nameser.h\fR>
  15 #include <\fBresolv.h\fR>
  16 #include <\fBnetdb.h\fR>
  17 .fi
  18 
  19 .SH DESCRIPTION
  20 Functions in this library provide for creating, sending, and interpreting
  21 packets to the Internet domain name servers.
  22 .SH INTERFACES
  23 The shared object \fBlibresolv.so.2\fR provides the public interfaces defined
  24 below. See \fBIntro\fR(3) for additional information on shared object
  25 interfaces.
  26 .sp
  27 
  28 .sp
  29 .TS
  30 l l
  31 l l .
  32 \fB__dn_skipname\fR     \fB__fp_query\fR
  33 \fB__hostalias\fR       \fB__p_cdname\fR
  34 \fB__p_class\fR \fB__p_query\fR
  35 \fB__p_time\fR  \fB__p_type\fR
  36 \fB__putlong\fR \fB_getlong\fR
  37 \fB_getshort\fR \fB_res\fR
  38 \fBdn_comp\fR   \fBdn_expand\fR
  39 \fBfp_resstat\fR        \fBh_errno\fR
  40 \fBherror\fR    \fBhstrerror\fR
  41 \fBres_hostalias\fR     \fBres_init\fR
  42 \fBres_mkquery\fR       \fBres_nclose\fR
  43 \fBres_ninit\fR \fBres_nmkquery\fR
  44 \fBres_nquery\fR        \fBres_nquerydomain\fR
  45 \fBres_nsearch\fR       \fBres_nsend\fR
  46 \fBres_nsendsigned\fR   \fBres_query\fR
  47 \fBres_querydomain\fR   \fBres_search\fR
  48 \fBres_send\fR  \fBres_update\fR
  49 .TE
  50 
  51 .sp
  52 .LP
  53 Programs are expected to use the aliases defined in  <\fBresolv.h\fR> rather
  54 than calling the "__" prefixed procedures, as indicated in the following table.
  55 Use of the routines in the first column is discouraged.
  56 .sp
  57 
  58 .sp
  59 .TS
  60 c c
  61 l l .
  62 \fBFUNCTION REFERENCED\fR       \fBALIAS TO USE\fR
  63 \fB__dn_skipname\fR     \fBdn_skipname\fR
  64 \fB__fp_query\fR        \fBfp_query\fR
  65 \fB__putlong\fR \fBputlong\fR
  66 \fB__p_cdname\fR        \fBp_cdname\fR
  67 \fB__p_class\fR \fBp_class\fR
  68 \fB__p_time\fR  \fBp_time\fR
  69 \fB__p_type\fR  \fBp_type\fR
  70 .TE
  71 
  72 .SH FILES
  73 .ne 2
  74 .na
  75 \fB/lib/libresolv.so.1\fR
  76 .ad
  77 .RS 26n
  78 shared object for backward compatibility only
  79 .RE
  80 
  81 .sp
  82 .ne 2
  83 .na
  84 \fB/lib/64/libresolv.so.1\fR
  85 .ad
  86 .RS 26n
  87 64-bit shared object for backward compatibility only
  88 .RE
  89 
  90 .sp
  91 .ne 2
  92 .na
  93 \fB/lib/libresolv.so.2\fR
  94 .ad
  95 .RS 26n
  96 shared object
  97 .RE
  98 
  99 .sp
 100 .ne 2
 101 .na
 102 \fB/lib/64/libresolv.so.2\fR
 103 .ad
 104 .RS 26n
 105 64-bit shared object
 106 .RE
 107 
 108 .SH ATTRIBUTES
 109 See \fBattributes\fR(5) for descriptions of the following attributes:
 110 .sp
 111 
 112 .sp
 113 .TS
 114 box;
 115 c | c
 116 l | l .
 117 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 118 _
 119 Interface Stability     Standard:  BIND 8.2.4
 120 _
 121 MT-Level        See \fBresolver\fR(3RESOLV)
 122 .TE
 123 
 124 .SH SEE ALSO
 125 \fBpvs\fR(1), \fBIntro\fR(3), \fBresolver\fR(3RESOLV), \fBattributes\fR(5)