diff options
Diffstat (limited to 'libc/netbsd/resolv/res_mkquery.c')
| -rw-r--r-- | libc/netbsd/resolv/res_mkquery.c | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/libc/netbsd/resolv/res_mkquery.c b/libc/netbsd/resolv/res_mkquery.c deleted file mode 100644 index fb4de7f..0000000 --- a/libc/netbsd/resolv/res_mkquery.c +++ /dev/null @@ -1,276 +0,0 @@ -/* $NetBSD: res_mkquery.c,v 1.6 2006/01/24 17:40:32 christos Exp $ */ - -/* - * Copyright (c) 2008 Android Open Source Project (query id randomization) - * 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. - */ - -#include <sys/cdefs.h> -#if defined(LIBC_SCCS) && !defined(lint) -#ifdef notdef -static const char sccsid[] = "@(#)res_mkquery.c 8.1 (Berkeley) 6/4/93"; -static const char rcsid[] = "Id: res_mkquery.c,v 1.1.2.2.4.2 2004/03/16 12:34:18 marka Exp"; -#else -__RCSID("$NetBSD: res_mkquery.c,v 1.6 2006/01/24 17:40:32 christos Exp $"); -#endif -#endif /* LIBC_SCCS and not lint */ - - - -#include <sys/types.h> -#include <sys/param.h> -#include <netinet/in.h> -#include "arpa_nameser.h" -#include <netdb.h> -#ifdef ANDROID_CHANGES -#include "resolv_private.h" -#else -#include <resolv.h> -#endif -#include <stdio.h> -#include <string.h> - -/* Options. Leave them on. */ -#ifndef DEBUG -#define DEBUG -#endif - -#ifndef lint -#define UNUSED(a) (void)&a -#else -#define UNUSED(a) a = a -#endif - -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 *)(void *)buf; - hp->id = htons(res_randomid()); - 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, (size_t)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). */ -#ifndef T_OPT -#define T_OPT 41 -#endif - -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 *)(void *)buf; - cp = buf + n0; - ep = buf + buflen; - - if ((ep - cp) < 1 + RRFIXEDSZ) - return (-1); - - *cp++ = 0; /* "." */ - - ns_put16(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(0, cp); /* RDLEN */ - cp += INT16SZ; - hp->arcount = htons(ntohs(hp->arcount) + 1); - - return (cp - buf); -} -#endif |