glibc/resolv/res_mkquery.c
Ulrich Drepper 14bab8de31 update from main archive 960828
Thu Aug 29 00:28:08 1996  Ulrich Drepper  <drepper@cygnus.com>

	* stdio-common/printf_fp.c (__printf_fp): Use default value `.` if
 	`decimal' char is 0.

	* C-numeric.c (not_available): New constant.
	(_nl_C_LC_NUMERIC): Use `not_available' for grouping value.

	* nss/nsswitch.conf: Example configuration file.
	* nss/db-Makefile: Example Makefile for generation of databases
	for nss_db.
	* nss/Makefile (distribute): Add nsswitch.conf and db-Makefile.

1996-08-28  Paul Eggert  <eggert@twinsun.com>

	* C-messages.c (_nl_C_LC_MESSAGES): Set yesexpr to "^[yY]" and
 	noexpr to "^[nN]"; this conforms to POSIX.2.

	* C-time.c (_nl_C_LC_TIME): Change %d to %e in d_t_format, to
 	conform to POSIX.2.

1996-08-28  Paul Eggert  <eggert@twinsun.com>

	* C-monetary.c (not_available): New constant.
	(_nl_C_LC_MONETARY): Set mon_decimal_point to "", and set
 	mon_grouping, int_frac_digits, frac_digits, p_cs_precedes,
 	p_sep_by_space, n_cs_precedes, n_sep_by_space, p_sign_posn, and
 	n_sign_posn to CHAR_MAX, as required by the POSIX Standard.

Wed Aug 28 23:12:28 1996  Ulrich Drepper  <drepper@cygnus.com>

	* nss/nss_db/db-XXX.c: Correct function names.  They must be
	`_nss_db_*' instead of `_nss_files_*'.
	(lookup): `parse_line' returns 1 if succesful.
	* nss/nss_files/files-service.c (servbyname): Key for database
	must also contain protocol names.
	(servbypt): Likewise.
	Test must also check for protocol.  Add `proto' argument.

Tue Aug 27 09:56:13 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* MakeTAGS ($P/subdirs.pot): Prefix all file names, not only the
	first one.

Fri Aug 16 16:11:25 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* nss/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r): Treat
 	EPFNOSUPPORT and EAFNOSUPPORT as implying NSS_STATUS_UNAVAIL just
 	like ECONNREFUSED already does.
	(_nss_dns_gethostbyaddr_r): Likewise.
	* nss/nss_dns/dns-network.c (_nss_dns_getnetbyname_r): Likewise.
	(_nss_dns_getnetbyaddr_r): Likewise.

	* sysdeps/mach/hurd/socket.c (socket): For message transmission
 	and RPC errors that indicate that the socket server is not really
 	present and able to do its job, turn the error into EPFNOSUPPORT.

	* sysdeps/generic/sbrk.c (__sbrk):  Get kernel brk address
	always only if in static libc or if statically linked program
	uses libc.so.
1996-08-29 00:31:18 +00:00

191 lines
5.8 KiB
C

/*
* ++Copyright++ 1985, 1993
* -
* 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--
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)res_mkquery.c 8.1 (Berkeley) 6/4/93";
static char rcsid[] = "$Id$";
#endif /* LIBC_SCCS and not lint */
#include <sys/types.h>
#include <sys/param.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <stdio.h>
#include <netdb.h>
#include <resolv.h>
#if defined(BSD) && (BSD >= 199103)
# include <string.h>
#else
# include "../conf/portability.h"
#endif
#if defined(USE_OPTIONS_H)
# include <../conf/options.h>
#endif
/*
* Form all types of queries.
* Returns the size of the result or -1.
*/
int
res_mkquery(op, dname, class, type, data, datalen, newrr_in, buf, buflen)
int op; /* opcode of query */
const char *dname; /* domain name */
int class, 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;
register int n;
u_char *dnptrs[20], **dpp, **lastdnptr;
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
h_errno = NETDB_INTERNAL;
return (-1);
}
#ifdef DEBUG
if (_res.options & RES_DEBUG)
printf(";; res_mkquery(%d, %s, %d, %d)\n",
op, dname, class, type);
#endif
/*
* Initialize header fields.
*/
if ((buf == NULL) || (buflen < HFIXEDSZ))
return (-1);
bzero(buf, HFIXEDSZ);
hp = (HEADER *) buf;
hp->id = htons(++_res.id);
hp->opcode = op;
hp->rd = (_res.options & RES_RECURSE) != 0;
hp->rcode = NOERROR;
cp = buf + HFIXEDSZ;
buflen -= HFIXEDSZ;
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 ((buflen -= QFIXEDSZ) < 0)
return (-1);
if ((n = dn_comp(dname, cp, buflen, dnptrs, lastdnptr)) < 0)
return (-1);
cp += n;
buflen -= n;
__putshort(type, cp);
cp += INT16SZ;
__putshort(class, cp);
cp += INT16SZ;
hp->qdcount = htons(1);
if (op == QUERY || data == NULL)
break;
/*
* Make an additional record for completion domain.
*/
buflen -= RRFIXEDSZ;
n = dn_comp((char *)data, cp, buflen, dnptrs, lastdnptr);
if (n < 0)
return (-1);
cp += n;
buflen -= n;
__putshort(T_NULL, cp);
cp += INT16SZ;
__putshort(class, cp);
cp += INT16SZ;
__putlong(0, cp);
cp += INT32SZ;
__putshort(0, cp);
cp += INT16SZ;
hp->arcount = htons(1);
break;
case IQUERY:
/*
* Initialize answer section
*/
if (buflen < 1 + RRFIXEDSZ + datalen)
return (-1);
*cp++ = '\0'; /* no domain name */
__putshort(type, cp);
cp += INT16SZ;
__putshort(class, cp);
cp += INT16SZ;
__putlong(0, cp);
cp += INT32SZ;
__putshort(datalen, cp);
cp += INT16SZ;
if (datalen) {
bcopy(data, cp, datalen);
cp += datalen;
}
hp->ancount = htons(1);
break;
default:
return (-1);
}
return (cp - buf);
}