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Diffstat (limited to '3rdParty/CAres/src/ares_parse_txt_reply.c')
-rw-r--r--3rdParty/CAres/src/ares_parse_txt_reply.c202
1 files changed, 0 insertions, 202 deletions
diff --git a/3rdParty/CAres/src/ares_parse_txt_reply.c b/3rdParty/CAres/src/ares_parse_txt_reply.c
deleted file mode 100644
index b6af850..0000000
--- a/3rdParty/CAres/src/ares_parse_txt_reply.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/* $Id: ares_parse_txt_reply.c,v 1.9 2009-11-26 01:21:21 yangtse Exp $ */
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2009 by Jakub Hrozek <jhrozek@redhat.com>
- *
- * 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.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_data.h"
-#include "ares_private.h"
-
-int
-ares_parse_txt_reply (const unsigned char *abuf, int alen,
- struct ares_txt_reply **txt_out)
-{
- size_t substr_len, str_len;
- unsigned int qdcount, ancount, i;
- const unsigned char *aptr;
- const unsigned char *strptr;
- int status, rr_type, rr_class, rr_len;
- long len;
- char *hostname = NULL, *rr_name = NULL;
- struct ares_txt_reply *txt_head = NULL;
- struct ares_txt_reply *txt_last = NULL;
- struct ares_txt_reply *txt_curr;
-
- /* Set *txt_out to NULL for all failure cases. */
- *txt_out = NULL;
-
- /* Give up if abuf doesn't have room for a header. */
- if (alen < HFIXEDSZ)
- return ARES_EBADRESP;
-
- /* Fetch the question and answer count from the header. */
- qdcount = DNS_HEADER_QDCOUNT (abuf);
- ancount = DNS_HEADER_ANCOUNT (abuf);
- if (qdcount != 1)
- return ARES_EBADRESP;
- if (ancount == 0)
- return ARES_ENODATA;
-
- /* Expand the name from the question, and skip past the question. */
- aptr = abuf + HFIXEDSZ;
- status = ares_expand_name (aptr, abuf, alen, &hostname, &len);
- if (status != ARES_SUCCESS)
- return status;
-
- if (aptr + len + QFIXEDSZ > abuf + alen)
- {
- free (hostname);
- return ARES_EBADRESP;
- }
- aptr += len + QFIXEDSZ;
-
- /* Examine each answer resource record (RR) in turn. */
- for (i = 0; i < ancount; i++)
- {
- /* Decode the RR up to the data field. */
- status = ares_expand_name (aptr, abuf, alen, &rr_name, &len);
- if (status != ARES_SUCCESS)
- {
- break;
- }
- aptr += len;
- if (aptr + RRFIXEDSZ > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- rr_type = DNS_RR_TYPE (aptr);
- rr_class = DNS_RR_CLASS (aptr);
- rr_len = DNS_RR_LEN (aptr);
- aptr += RRFIXEDSZ;
-
- /* Check if we are really looking at a TXT record */
- if (rr_class == C_IN && rr_type == T_TXT)
- {
- /* Allocate storage for this TXT answer appending it to the list */
- txt_curr = ares_malloc_data(ARES_DATATYPE_TXT_REPLY);
- if (!txt_curr)
- {
- status = ARES_ENOMEM;
- break;
- }
- if (txt_last)
- {
- txt_last->next = txt_curr;
- }
- else
- {
- txt_head = txt_curr;
- }
- txt_last = txt_curr;
-
- /*
- * There may be multiple substrings in a single TXT record. Each
- * substring may be up to 255 characters in length, with a
- * "length byte" indicating the size of the substring payload.
- * RDATA contains both the length-bytes and payloads of all
- * substrings contained therein.
- */
-
- /* Compute total length to allow a single memory allocation */
- strptr = aptr;
- while (strptr < (aptr + rr_len))
- {
- substr_len = (unsigned char)*strptr;
- txt_curr->length += substr_len;
- strptr += substr_len + 1;
- }
-
- /* Including null byte */
- txt_curr->txt = malloc (txt_curr->length + 1);
- if (txt_curr->txt == NULL)
- {
- status = ARES_ENOMEM;
- break;
- }
-
- /* Step through the list of substrings, concatenating them */
- str_len = 0;
- strptr = aptr;
- while (strptr < (aptr + rr_len))
- {
- substr_len = (unsigned char)*strptr;
- strptr++;
- memcpy ((char *) txt_curr->txt + str_len, strptr, substr_len);
- str_len += substr_len;
- strptr += substr_len;
- }
- /* Make sure we NULL-terminate */
- *((char *) txt_curr->txt + txt_curr->length) = '\0';
- }
-
- /* Don't lose memory in the next iteration */
- free (rr_name);
- rr_name = NULL;
-
- /* Move on to the next record */
- aptr += rr_len;
- }
-
- if (hostname)
- free (hostname);
- if (rr_name)
- free (rr_name);
-
- /* clean up on error */
- if (status != ARES_SUCCESS)
- {
- if (txt_head)
- ares_free_data (txt_head);
- return status;
- }
-
- /* everything looks fine, return the data */
- *txt_out = txt_head;
-
- return ARES_SUCCESS;
-}