diff options
author | Guo Mang <mang.guo@intel.com> | 2017-08-02 09:54:47 +0800 |
---|---|---|
committer | Guo Mang <mang.guo@intel.com> | 2017-09-05 19:45:08 +0800 |
commit | 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 (patch) | |
tree | 444372d92a0ae8991fe4d15eb3937df43690dfda /StdLib/BsdSocketLib/res_query.c | |
parent | b207c6434d7a5a4502975d322312e07017e8a8cb (diff) | |
download | edk2-platforms-6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8.tar.xz |
Remove core packages since we can get them from edk2 repository
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'StdLib/BsdSocketLib/res_query.c')
-rw-r--r-- | StdLib/BsdSocketLib/res_query.c | 430 |
1 files changed, 0 insertions, 430 deletions
diff --git a/StdLib/BsdSocketLib/res_query.c b/StdLib/BsdSocketLib/res_query.c deleted file mode 100644 index 791ff018f1..0000000000 --- a/StdLib/BsdSocketLib/res_query.c +++ /dev/null @@ -1,430 +0,0 @@ -/*
- * Copyright (c) 1988, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * 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 the University of
- * California, Berkeley, Intel Corporation, and its contributors.
- *
- * 4. Neither the name of University, Intel Corporation, or their respective
- * 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, 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 THE REGENTS,
- * 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.
- *
- */
-
-/*
- * 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.
- */
-
-/*
- * Portions 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.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)res_query.c 8.1 (Berkeley) 6/4/93";
-static char orig_rcsid = "From: Id: res_query.c,v 8.14 1997/06/09 17:47:05 halley Exp $";
-static char rcsid[] = "$Id: res_query.c,v 1.1.1.1 2003/11/19 01:51:38 kyu3 Exp $";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <arpa/nameser.h>
-#include <ctype.h>
-#include <errno.h>
-#include <netdb.h>
-#include <resolv.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "res_config.h"
-
-#if PACKETSZ > 1024
-#define MAXPACKET PACKETSZ
-#else
-#define MAXPACKET 1024
-#endif
-
-/*
- * Formulate a normal query, send, and await answer.
- * Returned answer is placed in supplied buffer "answer".
- * Perform preliminary check of answer, returning success only
- * if no error is indicated and the answer count is nonzero.
- * Return the size of the response on success, -1 on error.
- * Error number is left in h_errno.
- *
- * Caller must parse answer and determine whether it answers the question.
- */
-int
-res_query(
- const char *name, /* domain name */
- int class, /* class of query */
- int type, /* type of query */
- u_char *answer, /* buffer to put answer */
- int anslen /* size of answer buffer */
- )
-{
- u_char buf[MAXPACKET];
- HEADER *hp = (HEADER *) answer;
- int n;
-
- hp->rcode = NOERROR; /* default */
-
- if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
- h_errno = NETDB_INTERNAL;
- return (-1);
- }
-#ifdef DEBUG
- if (_res.options & RES_DEBUG)
- printf(";; res_query(%s, %d, %d)\n", name, class, type);
-#endif
-
- n = res_mkquery(QUERY, name, class, type, NULL, 0, NULL,
- buf, sizeof(buf));
- if (n <= 0) {
-#ifdef DEBUG
- if (_res.options & RES_DEBUG)
- printf(";; res_query: mkquery failed\n");
-#endif
- h_errno = NO_RECOVERY;
- return (n);
- }
- n = res_send(buf, n, answer, anslen);
- if (n < 0) {
-#ifdef DEBUG
- if (_res.options & RES_DEBUG)
- printf(";; res_query: send error\n");
-#endif
- h_errno = TRY_AGAIN;
- return (n);
- }
-
- if (hp->rcode != NOERROR || ntohs(hp->ancount) == 0) {
-#ifdef DEBUG
- if (_res.options & RES_DEBUG)
- printf(";; rcode = %d, ancount=%d\n", hp->rcode,
- ntohs(hp->ancount));
-#endif
- switch (hp->rcode) {
- case NXDOMAIN:
- h_errno = HOST_NOT_FOUND;
- break;
- case SERVFAIL:
- h_errno = TRY_AGAIN;
- break;
- case NOERROR:
- h_errno = NO_DATA;
- break;
- case FORMERR:
- case NOTIMP:
- case REFUSED:
- default:
- h_errno = NO_RECOVERY;
- break;
- }
- return (-1);
- }
- return (n);
-}
-
-/*
- * Formulate a normal query, send, and retrieve answer in supplied buffer.
- * Return the size of the response on success, -1 on error.
- * If enabled, implement search rules until answer or unrecoverable failure
- * is detected. Error code, if any, is left in h_errno.
- */
-int
-res_search(
- const char *name, /* domain name */
- int class, /* class of query */
- int type, /* type of query */
- u_char *answer, /* buffer to put answer */
- int anslen /* size of answer */
- )
-{
- const char *cp, * const *domain;
- HEADER *hp = (HEADER *) answer;
- u_int dots;
- int trailing_dot, ret, saved_herrno;
- int got_nodata = 0, got_servfail = 0, tried_as_is = 0;
-
- if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
- h_errno = NETDB_INTERNAL;
- return (-1);
- }
- errno = 0;
- h_errno = HOST_NOT_FOUND; /* default, if we never query */
- dots = 0;
- for (cp = name; *cp; cp++)
- dots += (*cp == '.');
- trailing_dot = 0;
- if (cp > name && *--cp == '.')
- trailing_dot++;
-
- /* If there aren't any dots, it could be a user-level alias */
- if (!dots && (cp = hostalias(name)) != NULL)
- return (res_query(cp, class, type, answer, anslen));
-
- /*
- * If there are dots in the name already, let's just give it a try
- * 'as is'. The threshold can be set with the "ndots" option.
- */
- saved_herrno = -1;
- if (dots >= _res.ndots) {
- ret = res_querydomain(name, NULL, class, type, answer, anslen);
- if (ret > 0)
- return (ret);
- saved_herrno = h_errno;
- tried_as_is++;
- }
-
- /*
- * We do at least one level of search if
- * - there is no dot and RES_DEFNAME is set, or
- * - there is at least one dot, there is no trailing dot,
- * and RES_DNSRCH is set.
- */
- if ((!dots && (_res.options & RES_DEFNAMES)) ||
- (dots && !trailing_dot && (_res.options & RES_DNSRCH))) {
- int done = 0;
-
- for (domain = (const char * const *)_res.dnsrch;
- *domain && !done;
- domain++) {
-
- ret = res_querydomain(name, *domain, class, type,
- answer, anslen);
- if (ret > 0)
- return (ret);
-
- /*
- * If no server present, give up.
- * If name isn't found in this domain,
- * keep trying higher domains in the search list
- * (if that's enabled).
- * On a NO_DATA error, keep trying, otherwise
- * a wildcard entry of another type could keep us
- * from finding this entry higher in the domain.
- * If we get some other error (negative answer or
- * server failure), then stop searching up,
- * but try the input name below in case it's
- * fully-qualified.
- */
- if (errno == ECONNREFUSED) {
- h_errno = TRY_AGAIN;
- return (-1);
- }
-
- switch (h_errno) {
- case NO_DATA:
- got_nodata++;
- /* FALLTHROUGH */
- case HOST_NOT_FOUND:
- /* keep trying */
- break;
- case TRY_AGAIN:
- if (hp->rcode == SERVFAIL) {
- /* try next search element, if any */
- got_servfail++;
- break;
- }
- /* FALLTHROUGH */
- default:
- /* anything else implies that we're done */
- done++;
- }
-
- /* if we got here for some reason other than DNSRCH,
- * we only wanted one iteration of the loop, so stop.
- */
- if (!(_res.options & RES_DNSRCH))
- done++;
- }
- }
-
- /*
- * If we have not already tried the name "as is", do that now.
- * note that we do this regardless of how many dots were in the
- * name or whether it ends with a dot unless NOTLDQUERY is set.
- */
- if (!tried_as_is && (dots || !(_res.options & RES_NOTLDQUERY))) {
- ret = res_querydomain(name, NULL, class, type, answer, anslen);
- if (ret > 0)
- return (ret);
- }
-
- /* if we got here, we didn't satisfy the search.
- * if we did an initial full query, return that query's h_errno
- * (note that we wouldn't be here if that query had succeeded).
- * else if we ever got a nodata, send that back as the reason.
- * else send back meaningless h_errno, that being the one from
- * the last DNSRCH we did.
- */
- if (saved_herrno != -1)
- h_errno = saved_herrno;
- else if (got_nodata)
- h_errno = NO_DATA;
- else if (got_servfail)
- h_errno = TRY_AGAIN;
- return (-1);
-}
-
-/*
- * Perform a call on res_query on the concatenation of name and domain,
- * removing a trailing dot from name if domain is NULL.
- */
-int
-res_querydomain(
- const char *name,
- const char *domain,
- int class, /* class of query */
- int type, /* type of query */
- u_char *answer, /* buffer to put answer */
- int anslen /* size of answer */
- )
-{
- char nbuf[MAXDNAME];
- const char *longname = nbuf;
- int n, d;
-
- if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
- h_errno = NETDB_INTERNAL;
- return (-1);
- }
-#ifdef DEBUG
- if (_res.options & RES_DEBUG)
- printf(";; res_querydomain(%s, %s, %d, %d)\n",
- name, domain?domain:"<Nil>", class, type);
-#endif
- if (domain == NULL) {
- /*
- * Check for trailing '.';
- * copy without '.' if present.
- */
- n = (int)strlen(name);
- if (n >= MAXDNAME) {
- h_errno = NO_RECOVERY;
- return (-1);
- }
- n--;
- if (n >= 0 && name[n] == '.') {
- strncpy(nbuf, name, n);
- nbuf[n] = '\0';
- } else
- longname = name;
- } else {
- n = (int)strlen(name);
- d = (int)strlen(domain);
- if (n + d + 1 >= MAXDNAME) {
- h_errno = NO_RECOVERY;
- return (-1);
- }
- sprintf(nbuf, "%s.%s", name, domain);
- }
- return (res_query(longname, class, type, answer, anslen));
-}
-
-const char *
-hostalias(
- const char *name
- )
-{
- register char *cp1, *cp2;
- FILE *fp;
- char *file;
- char buf[BUFSIZ];
- static char abuf[MAXDNAME];
-
- if (_res.options & RES_NOALIASES)
- return (NULL);
-#ifdef _ORG_FREEBSD_
- if (issetugid())
- return (NULL);
-#endif
- file = getenv("HOSTALIASES");
- if (file == NULL || (fp = fopen(file, "r")) == NULL)
- return (NULL);
- setbuf(fp, NULL);
- buf[sizeof(buf) - 1] = '\0';
- while (fgets(buf, sizeof(buf), fp)) {
- for (cp1 = buf; *cp1 && !isspace(*cp1); ++cp1)
- ;
- if (!*cp1)
- break;
- *cp1 = '\0';
- if (!strcasecmp(buf, name)) {
- while (isspace(*++cp1))
- ;
- if (!*cp1)
- break;
- for (cp2 = cp1 + 1; *cp2 && !isspace(*cp2); ++cp2)
- ;
- abuf[sizeof(abuf) - 1] = *cp2 = '\0';
- strncpy(abuf, cp1, sizeof(abuf) - 1);
- fclose(fp);
- return (abuf);
- }
- }
- fclose(fp);
- return (NULL);
-}
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