diff options
Diffstat (limited to 'src/c-ares/ares_parse_a_reply.3')
-rw-r--r-- | src/c-ares/ares_parse_a_reply.3 | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/c-ares/ares_parse_a_reply.3 b/src/c-ares/ares_parse_a_reply.3 new file mode 100644 index 000000000..8db8ed9a7 --- /dev/null +++ b/src/c-ares/ares_parse_a_reply.3 @@ -0,0 +1,78 @@ +.\" +.\" Copyright 1998 by the Massachusetts Institute of Technology. +.\" +.\" Permission to use, copy, modify, and distribute this +.\" software and its documentation for any purpose and without +.\" fee is hereby granted, provided that the above copyright +.\" notice appear in all copies and that both that copyright +.\" notice and this permission notice appear in supporting +.\" documentation, and that the name of M.I.T. not be used in +.\" advertising or publicity pertaining to distribution of the +.\" software without specific, written prior permission. +.\" M.I.T. makes no representations about the suitability of +.\" this software for any purpose. It is provided "as is" +.\" without express or implied warranty. +.\" +.TH ARES_PARSE_A_REPLY 3 "25 July 1998" +.SH NAME +ares_parse_a_reply \- Parse a reply to a DNS query of type A +.SH SYNOPSIS +.nf +.B #include <ares.h> +.PP +.B int ares_parse_a_reply(const unsigned char *\fIabuf\fP, int \fIalen\fP, +.B struct hostent **\fIhost\fP, +.B struct ares_addrttl *\fIaddrttls\fP, int *\fInaddrttls\fP); +.fi +.SH DESCRIPTION +The +.B ares_parse_a_reply +function parses the response to a query of type A into a +.BR "struct hostent" +and/or an array of +.BR "struct ares_addrttls" . +The parameters +.I abuf +and +.I alen +give the contents of the response. The result is stored in allocated +memory and a pointer to it stored into the variable pointed to by +.IR host , +if host is nonnull. +It is the caller's responsibility to free the resulting host structure +using +.BR ares_free_hostent (3) +when it is no longer needed. +.PP +If +.IR addrttls +and +.IR naddrttls +are both nonnull, +then up to *naddrttls +.BR "struct ares_addrttl" +records are stored in the array pointed to by addrttls, +and then *naddrttls is set to the number of records so stored. +Note that the memory for these records is supplied by the caller. +.SH RETURN VALUES +.B ares_parse_a_reply +can return any of the following values: +.TP 15 +.B ARES_SUCCESS +The response was successfully parsed. +.TP 15 +.B ARES_EBADRESP +The response was malformatted. +.TP 15 +.B ARES_ENODATA +The response did not contain an answer to the query. +.TP 15 +.B ARES_ENOMEM +Memory was exhausted. +.SH SEE ALSO +.BR ares_gethostbyname (3), +.BR ares_free_hostent (3) +.SH AUTHOR +Greg Hudson, MIT Information Systems +.br +Copyright 1998 by the Massachusetts Institute of Technology. |