Adding upstream version 1:9.11.5.P4+dfsg.upstream/1%9.11.5.P4+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 220 insertions, 0 deletions

diff --git a/lib/lwres/man/lwres_getipnode.3 b/lib/lwres/man/lwres_getipnode.3
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+.\" Copyright (C) 2000, 2001, 2003-2005, 2007, 2014-2016, 2018, 2019 Internet Systems Consortium, Inc. ("ISC")
+.\" 
+.\" This Source Code Form is subject to the terms of the Mozilla Public
+.\" License, v. 2.0. If a copy of the MPL was not distributed with this
+.\" file, You can obtain one at http://mozilla.org/MPL/2.0/.
+.\"
+.hy 0
+.ad l
+'\" t
+.\"     Title: lwres_getipnode
+.\"    Author: 
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\"      Date: 2007-06-18
+.\"    Manual: BIND9
+.\"    Source: ISC
+.\"  Language: English
+.\"
+.TH "LWRES_GETIPNODE" "3" "2007\-06\-18" "ISC" "BIND9"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+lwres_getipnodebyname, lwres_getipnodebyaddr, lwres_freehostent \- lightweight resolver nodename / address translation API
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <lwres/netdb\&.h>
+.fi
+.ft
+.HP \w'struct\ hostent\ *\ lwres_getipnodebyname('u
+.BI "struct hostent * lwres_getipnodebyname(const\ char\ *" "name" ", int\ " "af" ", int\ " "flags" ", int\ *" "error_num" ");"
+.HP \w'struct\ hostent\ *\ lwres_getipnodebyaddr('u
+.BI "struct hostent * lwres_getipnodebyaddr(const\ void\ *" "src" ", size_t\ " "len" ", int\ " "af" ", int\ *" "error_num" ");"
+.HP \w'void\ lwres_freehostent('u
+.BI "void lwres_freehostent(struct\ hostent\ *" "he" ");"
+.SH "DESCRIPTION"
+.PP
+These functions perform thread safe, protocol independent nodename\-to\-address and address\-to\-nodename translation as defined in RFC2553\&.
+.PP
+They use a
+\fBstruct hostent\fR
+which is defined in
+namedb\&.h:
+.PP
+.if n \{\
+.RS 4
+.\}
+.nf
+struct  hostent {
+        char    *h_name;        /* official name of host */
+        char    **h_aliases;    /* alias list */
+        int     h_addrtype;     /* host address type */
+        int     h_length;       /* length of address */
+        char    **h_addr_list;  /* list of addresses from name server */
+};
+#define h_addr  h_addr_list[0]  /* address, for backward compatibility */
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+The members of this structure are:
+.PP
+\fBh_name\fR
+.RS 4
+The official (canonical) name of the host\&.
+.RE
+.PP
+\fBh_aliases\fR
+.RS 4
+A NULL\-terminated array of alternate names (nicknames) for the host\&.
+.RE
+.PP
+\fBh_addrtype\fR
+.RS 4
+The type of address being returned \- usually
+\fBPF_INET\fR
+or
+\fBPF_INET6\fR\&.
+.RE
+.PP
+\fBh_length\fR
+.RS 4
+The length of the address in bytes\&.
+.RE
+.PP
+\fBh_addr_list\fR
+.RS 4
+A
+\fBNULL\fR
+terminated array of network addresses for the host\&. Host addresses are returned in network byte order\&.
+.RE
+.PP
+\fBlwres_getipnodebyname()\fR
+looks up addresses of protocol family
+\fIaf\fR
+for the hostname
+\fIname\fR\&. The
+\fIflags\fR
+parameter contains ORed flag bits to specify the types of addresses that are searched for, and the types of addresses that are returned\&. The flag bits are:
+.PP
+\fBAI_V4MAPPED\fR
+.RS 4
+This is used with an
+\fIaf\fR
+of AF_INET6, and causes IPv4 addresses to be returned as IPv4\-mapped IPv6 addresses\&.
+.RE
+.PP
+\fBAI_ALL\fR
+.RS 4
+This is used with an
+\fIaf\fR
+of AF_INET6, and causes all known addresses (IPv6 and IPv4) to be returned\&. If AI_V4MAPPED is also set, the IPv4 addresses are return as mapped IPv6 addresses\&.
+.RE
+.PP
+\fBAI_ADDRCONFIG\fR
+.RS 4
+Only return an IPv6 or IPv4 address if here is an active network interface of that type\&. This is not currently implemented in the BIND 9 lightweight resolver, and the flag is ignored\&.
+.RE
+.PP
+\fBAI_DEFAULT\fR
+.RS 4
+This default sets the
+\fBAI_V4MAPPED\fR
+and
+\fBAI_ADDRCONFIG\fR
+flag bits\&.
+.RE
+.PP
+\fBlwres_getipnodebyaddr()\fR
+performs a reverse lookup of address
+\fIsrc\fR
+which is
+\fIlen\fR
+bytes long\&.
+\fIaf\fR
+denotes the protocol family, typically
+\fBPF_INET\fR
+or
+\fBPF_INET6\fR\&.
+.PP
+\fBlwres_freehostent()\fR
+releases all the memory associated with the
+\fBstruct hostent\fR
+pointer
+\fIhe\fR\&. Any memory allocated for the
+\fBh_name\fR,
+\fBh_addr_list\fR
+and
+\fBh_aliases\fR
+is freed, as is the memory for the
+\fBhostent\fR
+structure itself\&.
+.SH "RETURN VALUES"
+.PP
+If an error occurs,
+\fBlwres_getipnodebyname()\fR
+and
+\fBlwres_getipnodebyaddr()\fR
+set
+\fI*error_num\fR
+to an appropriate error code and the function returns a
+\fBNULL\fR
+pointer\&. The error codes and their meanings are defined in
+<lwres/netdb\&.h>:
+.PP
+\fBHOST_NOT_FOUND\fR
+.RS 4
+No such host is known\&.
+.RE
+.PP
+\fBNO_ADDRESS\fR
+.RS 4
+The server recognised the request and the name but no address is available\&. Another type of request to the name server for the domain might return an answer\&.
+.RE
+.PP
+\fBTRY_AGAIN\fR
+.RS 4
+A temporary and possibly transient error occurred, such as a failure of a server to respond\&. The request may succeed if retried\&.
+.RE
+.PP
+\fBNO_RECOVERY\fR
+.RS 4
+An unexpected failure occurred, and retrying the request is pointless\&.
+.RE
+.PP
+\fBlwres_hstrerror\fR(3)
+translates these error codes to suitable error messages\&.
+.SH "SEE ALSO"
+.PP
+\fBRFC2553\fR(),
+\fBlwres\fR(3),
+\fBlwres_gethostent\fR(3),
+\fBlwres_getaddrinfo\fR(3),
+\fBlwres_getnameinfo\fR(3),
+\fBlwres_hstrerror\fR(3)\&.
+.SH "AUTHOR"
+.PP
+\fBInternet Systems Consortium, Inc\&.\fR
+.SH "COPYRIGHT"
+.br
+Copyright \(co 2000, 2001, 2003-2005, 2007, 2014-2016, 2018, 2019 Internet Systems Consortium, Inc. ("ISC")
+.br