diff options
Diffstat (limited to 'StdLib/BsdSocketLib/ns_parse.c')
| -rw-r--r-- | StdLib/BsdSocketLib/ns_parse.c | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/StdLib/BsdSocketLib/ns_parse.c b/StdLib/BsdSocketLib/ns_parse.c deleted file mode 100644 index 40ae79ea77..0000000000 --- a/StdLib/BsdSocketLib/ns_parse.c +++ /dev/null @@ -1,232 +0,0 @@ -/** @file
- Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials are licensed and made available under
- the terms and conditions of the BSD License that accompanies this distribution.
- The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php.
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
- * Portions copyright (c) 1999, 2000
- * Intel Corporation.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- *
- * This product includes software developed by Intel Corporation and
- * its contributors.
- *
- * 4. Neither the name of Intel Corporation or its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Copyright (c) 1996 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
- * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
-**/
-
-#include <sys/types.h>
-
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-
-#include <errno.h>
-#include <resolv.h>
-#include <string.h>
-
-/* These need to be in the same order as the nres.h:ns_flag enum. */
-struct _ns_flagdata _ns_flagdata[16] = {
- { 0x8000, 15 }, /* qr. */
- { 0x7800, 11 }, /* opcode. */
- { 0x0400, 10 }, /* aa. */
- { 0x0200, 9 }, /* tc. */
- { 0x0100, 8 }, /* rd. */
- { 0x0080, 7 }, /* ra. */
- { 0x0040, 6 }, /* z. */
- { 0x0020, 5 }, /* ad. */
- { 0x0010, 4 }, /* cd. */
- { 0x000f, 0 }, /* rcode. */
- { 0x0000, 0 }, /* expansion (1/6). */
- { 0x0000, 0 }, /* expansion (2/6). */
- { 0x0000, 0 }, /* expansion (3/6). */
- { 0x0000, 0 }, /* expansion (4/6). */
- { 0x0000, 0 }, /* expansion (5/6). */
- { 0x0000, 0 }, /* expansion (6/6). */
-};
-
-static int
-skiprr(const u_char *ptr, const u_char *eom, ns_sect section, int count) {
- const u_char *optr = ptr;
-
- for ((void)NULL; count > 0; count--) {
- int b, rdlength;
-
- b = dn_skipname(ptr, eom);
- if (b < 0)
- goto emsgsize;
- ptr += b/*Name*/ + NS_INT16SZ/*Type*/ + NS_INT16SZ/*Class*/;
- if (section != ns_s_qd) {
- if (ptr + NS_INT32SZ > eom)
- goto emsgsize;
- ptr += NS_INT32SZ/*TTL*/;
- if (ptr + NS_INT16SZ > eom)
- goto emsgsize;
- NS_GET16(rdlength, ptr);
- ptr += rdlength/*RData*/;
- }
- }
- if (ptr > eom)
- goto emsgsize;
- return ((int)(ptr - optr));
- emsgsize:
- errno = EMSGSIZE;
- return (-1);
-}
-
-int
-ns_initparse(const u_char *msg, int msglen, ns_msg *handle) {
- const u_char *eom = msg + msglen;
- int i;
-
- memset(handle, 0x5e, sizeof *handle);
- handle->_msg = msg;
- handle->_eom = eom;
- if (msg + NS_INT16SZ > eom)
- goto emsgsize;
- NS_GET16(handle->_id, msg);
- if (msg + NS_INT16SZ > eom)
- goto emsgsize;
- NS_GET16(handle->_flags, msg);
- for (i = 0; i < ns_s_max; i++) {
- if (msg + NS_INT16SZ > eom)
- goto emsgsize;
- NS_GET16(handle->_counts[i], msg);
- }
- for (i = 0; i < ns_s_max; i++)
- if (handle->_counts[i] == 0)
- handle->_sections[i] = NULL;
- else {
- int b = skiprr(msg, eom, (ns_sect)i,
- handle->_counts[i]);
-
- if (b < 0)
- return (-1);
- handle->_sections[i] = msg;
- msg += b;
- }
- if (msg != eom)
- goto emsgsize;
- handle->_sect = ns_s_max;
- handle->_rrnum = -1;
- handle->_msg_ptr = NULL;
- return (0);
- emsgsize:
- errno = EMSGSIZE;
- return (-1);
-}
-
-int
-ns_parserr(ns_msg *handle, ns_sect section, int rrnum, ns_rr *rr) {
- int b;
-
- /* Make section right. */
- if ((unsigned int)section >= ns_s_max)
- goto enodev;
- if ((int)section != (int)handle->_sect) {
- handle->_sect = section;
- handle->_rrnum = 0;
- handle->_msg_ptr = handle->_sections[(int)section];
- }
-
- /* Make rrnum right. */
- if (rrnum == -1)
- rrnum = handle->_rrnum;
- if (rrnum < 0 || rrnum >= handle->_counts[(int)section])
- goto enodev;
- if (rrnum < handle->_rrnum) {
- handle->_rrnum = 0;
- handle->_msg_ptr = handle->_sections[(int)section];
- }
-
- b = skiprr(handle->_msg, handle->_eom, section,
- rrnum - handle->_rrnum);
- if (b < 0)
- return (-1);
- handle->_msg_ptr += b;
- handle->_rrnum = rrnum;
-
- /* Do the parse. */
- b = dn_expand(handle->_msg, handle->_eom,
- handle->_msg_ptr, rr->name, NS_MAXDNAME);
- if (b < 0)
- return (-1);
- handle->_msg_ptr += b;
- if (handle->_msg_ptr + NS_INT16SZ > handle->_eom)
- goto emsgsize;
- NS_GET16(rr->type, handle->_msg_ptr);
- if (handle->_msg_ptr + NS_INT16SZ > handle->_eom)
- goto emsgsize;
- NS_GET16(rr->rr_class, handle->_msg_ptr);
- if (section == ns_s_qd) {
- rr->ttl = 0;
- rr->rdlength = 0;
- rr->rdata = NULL;
- } else {
- if (handle->_msg_ptr + NS_INT32SZ > handle->_eom)
- goto emsgsize;
- NS_GET32(rr->ttl, handle->_msg_ptr);
- if (handle->_msg_ptr + NS_INT16SZ > handle->_eom)
- goto emsgsize;
- NS_GET16(rr->rdlength, handle->_msg_ptr);
- if (handle->_msg_ptr + rr->rdlength > handle->_eom)
- goto emsgsize;
- rr->rdata = handle->_msg_ptr;
- handle->_msg_ptr += rr->rdlength;
- }
- handle->_rrnum++;
-
- /* All done. */
- return (0);
- enodev:
- errno = ENODEV;
- return (-1);
- emsgsize:
- errno = EMSGSIZE;
- return (-1);
-}
|