diff options
Diffstat (limited to 'lib/bind/resolv/res_mkquery.c')
| -rw-r--r-- | lib/bind/resolv/res_mkquery.c | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/lib/bind/resolv/res_mkquery.c b/lib/bind/resolv/res_mkquery.c deleted file mode 100644 index 049f6c5..0000000 --- a/lib/bind/resolv/res_mkquery.c +++ /dev/null @@ -1,303 +0,0 @@ -/* - * Copyright (c) 1985, 1993 - * The Regents of the University of California. 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 the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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. - */ - -/* - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * 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, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION 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. - */ - -/* - * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") - * Portions Copyright (c) 1996-1999 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 ISC DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char sccsid[] = "@(#)res_mkquery.c 8.1 (Berkeley) 6/4/93"; -static const char rcsid[] = "$Id: res_mkquery.c,v 1.5.18.2 2008/04/03 23:15:15 marka Exp $"; -#endif /* LIBC_SCCS and not lint */ - -#include "port_before.h" -#include <sys/types.h> -#include <sys/param.h> -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <netdb.h> -#include <resolv.h> -#include <stdio.h> -#include <string.h> -#include "port_after.h" - -/* Options. Leave them on. */ -#define DEBUG - -extern const char *_res_opcodes[]; - -/*% - * Form all types of queries. - * Returns the size of the result or -1. - */ -int -res_nmkquery(res_state statp, - int op, /*!< opcode of query */ - const char *dname, /*!< domain name */ - int class, int type, /*!< class and type of query */ - const u_char *data, /*!< resource record data */ - int datalen, /*!< length of data */ - const u_char *newrr_in, /*!< new rr for modify or append */ - u_char *buf, /*!< buffer to put query */ - int buflen) /*!< size of buffer */ -{ - register HEADER *hp; - register u_char *cp, *ep; - register int n; - u_char *dnptrs[20], **dpp, **lastdnptr; - - UNUSED(newrr_in); - -#ifdef DEBUG - if (statp->options & RES_DEBUG) - printf(";; res_nmkquery(%s, %s, %s, %s)\n", - _res_opcodes[op], dname, p_class(class), p_type(type)); -#endif - /* - * Initialize header fields. - */ - if ((buf == NULL) || (buflen < HFIXEDSZ)) - return (-1); - memset(buf, 0, HFIXEDSZ); - hp = (HEADER *) buf; - hp->id = htons(++statp->id); - hp->opcode = op; - hp->rd = (statp->options & RES_RECURSE) != 0U; - hp->rcode = NOERROR; - cp = buf + HFIXEDSZ; - ep = buf + buflen; - dpp = dnptrs; - *dpp++ = buf; - *dpp++ = NULL; - lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0]; - /* - * perform opcode specific processing - */ - switch (op) { - case QUERY: /*FALLTHROUGH*/ - case NS_NOTIFY_OP: - if (ep - cp < QFIXEDSZ) - return (-1); - if ((n = dn_comp(dname, cp, ep - cp - QFIXEDSZ, dnptrs, - lastdnptr)) < 0) - return (-1); - cp += n; - ns_put16(type, cp); - cp += INT16SZ; - ns_put16(class, cp); - cp += INT16SZ; - hp->qdcount = htons(1); - if (op == QUERY || data == NULL) - break; - /* - * Make an additional record for completion domain. - */ - if ((ep - cp) < RRFIXEDSZ) - return (-1); - n = dn_comp((const char *)data, cp, ep - cp - RRFIXEDSZ, - dnptrs, lastdnptr); - if (n < 0) - return (-1); - cp += n; - ns_put16(T_NULL, cp); - cp += INT16SZ; - ns_put16(class, cp); - cp += INT16SZ; - ns_put32(0, cp); - cp += INT32SZ; - ns_put16(0, cp); - cp += INT16SZ; - hp->arcount = htons(1); - break; - - case IQUERY: - /* - * Initialize answer section - */ - if (ep - cp < 1 + RRFIXEDSZ + datalen) - return (-1); - *cp++ = '\0'; /*%< no domain name */ - ns_put16(type, cp); - cp += INT16SZ; - ns_put16(class, cp); - cp += INT16SZ; - ns_put32(0, cp); - cp += INT32SZ; - ns_put16(datalen, cp); - cp += INT16SZ; - if (datalen) { - memcpy(cp, data, datalen); - cp += datalen; - } - hp->ancount = htons(1); - break; - - default: - return (-1); - } - return (cp - buf); -} - -#ifdef RES_USE_EDNS0 -/* attach OPT pseudo-RR, as documented in RFC2671 (EDNS0). */ - -int -res_nopt(res_state statp, - int n0, /*%< current offset in buffer */ - u_char *buf, /*%< buffer to put query */ - int buflen, /*%< size of buffer */ - int anslen) /*%< UDP answer buffer size */ -{ - register HEADER *hp; - register u_char *cp, *ep; - u_int16_t flags = 0; - -#ifdef DEBUG - if ((statp->options & RES_DEBUG) != 0U) - printf(";; res_nopt()\n"); -#endif - - hp = (HEADER *) buf; - cp = buf + n0; - ep = buf + buflen; - - if ((ep - cp) < 1 + RRFIXEDSZ) - return (-1); - - *cp++ = 0; /*%< "." */ - ns_put16(ns_t_opt, cp); /*%< TYPE */ - cp += INT16SZ; - ns_put16(anslen & 0xffff, cp); /*%< CLASS = UDP payload size */ - cp += INT16SZ; - *cp++ = NOERROR; /*%< extended RCODE */ - *cp++ = 0; /*%< EDNS version */ - - if (statp->options & RES_USE_DNSSEC) { -#ifdef DEBUG - if (statp->options & RES_DEBUG) - printf(";; res_opt()... ENDS0 DNSSEC\n"); -#endif - flags |= NS_OPT_DNSSEC_OK; - } - ns_put16(flags, cp); - cp += INT16SZ; - - ns_put16(0U, cp); /*%< RDLEN */ - cp += INT16SZ; - - hp->arcount = htons(ntohs(hp->arcount) + 1); - - return (cp - buf); -} - -/* - * Construct variable data (RDATA) block for OPT psuedo-RR, append it - * to the buffer, then update the RDLEN field (previously set to zero by - * res_nopt()) with the new RDATA length. - */ -int -res_nopt_rdata(res_state statp, - int n0, /*%< current offset in buffer */ - u_char *buf, /*%< buffer to put query */ - int buflen, /*%< size of buffer */ - u_char *rdata, /*%< ptr to start of opt rdata */ - u_short code, /*%< OPTION-CODE */ - u_short len, /*%< OPTION-LENGTH */ - u_char *data) /*%< OPTION_DATA */ -{ - register u_char *cp, *ep; - -#ifdef DEBUG - if ((statp->options & RES_DEBUG) != 0U) - printf(";; res_nopt_rdata()\n"); -#endif - - cp = buf + n0; - ep = buf + buflen; - - if ((ep - cp) < (4 + len)) - return (-1); - - if (rdata < (buf + 2) || rdata >= ep) - return (-1); - - ns_put16(code, cp); - cp += INT16SZ; - - ns_put16(len, cp); - cp += INT16SZ; - - memcpy(cp, data, len); - cp += len; - - len = cp - rdata; - ns_put16(len, rdata - 2); /* Update RDLEN field */ - - return (cp - buf); -} -#endif - -/*! \file */ |
