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[src/netbsd-1-4]: src/dist/bind/lib/resolv Pull up revisions 1.1-1.2 (new) (r...
details: https://anonhg.NetBSD.org/src/rev/046d915f94b0
branches: netbsd-1-4
changeset: 469804:046d915f94b0
user: he <he%NetBSD.org@localhost>
date: Sat Dec 04 17:07:29 1999 +0000
description:
Pull up revisions 1.1-1.2 (new) (requested by christos and veego):
Update to BIND 8.2.2-P5.
diffstat:
dist/bind/lib/resolv/res_data.c | 296 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 296 insertions(+), 0 deletions(-)
diffs (300 lines):
diff -r 9244fedabd1f -r 046d915f94b0 dist/bind/lib/resolv/res_data.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/dist/bind/lib/resolv/res_data.c Sat Dec 04 17:07:29 1999 +0000
@@ -0,0 +1,296 @@
+/* $NetBSD: res_data.c,v 1.2.2.2 1999/12/04 17:07:29 he Exp $ */
+
+/*
+ * Copyright (c) 1995-1999 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 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 const char rcsid[] = "Id: res_data.c,v 8.17 1999/10/13 17:11:31 vixie Exp";
+#endif /* LIBC_SCCS and not lint */
+
+#include "port_before.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+
+#include <ctype.h>
+#include <netdb.h>
+#include <resolv.h>
+#include <res_update.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "port_after.h"
+#ifndef __NetBSD__
+#undef _res
+#endif
+
+const char *_res_opcodes[] = {
+ "QUERY",
+ "IQUERY",
+ "CQUERYM",
+ "CQUERYU", /* experimental */
+ "NOTIFY", /* experimental */
+ "UPDATE",
+ "6",
+ "7",
+ "8",
+ "9",
+ "10",
+ "11",
+ "12",
+ "13",
+ "ZONEINIT",
+ "ZONEREF",
+};
+
+#ifdef BIND_UPDATE
+const char *_res_sectioncodes[] = {
+ "ZONE",
+ "PREREQUISITES",
+ "UPDATE",
+ "ADDITIONAL",
+};
+#endif
+
+#ifndef __BIND_NOSTATIC
+struct __res_state _res
+# if defined(__BIND_RES_TEXT)
+ = { RES_TIMEOUT, } /* Motorola, et al. */
+# endif
+ ;
+
+/* Proto. */
+
+int res_ourserver_p(const res_state, const struct sockaddr_in *);
+void res_pquery(const res_state, const u_char *, int, FILE *);
+
+int
+res_init(void) {
+ extern int __res_vinit(res_state, int);
+
+ /*
+ * These three fields used to be statically initialized. This made
+ * it hard to use this code in a shared library. It is necessary,
+ * now that we're doing dynamic initialization here, that we preserve
+ * the old semantics: if an application modifies one of these three
+ * fields of _res before res_init() is called, res_init() will not
+ * alter them. Of course, if an application is setting them to
+ * _zero_ before calling res_init(), hoping to override what used
+ * to be the static default, we can't detect it and unexpected results
+ * will follow. Zero for any of these fields would make no sense,
+ * so one can safely assume that the applications were already getting
+ * unexpected results.
+ *
+ * _res.options is tricky since some apps were known to diddle the bits
+ * before res_init() was first called. We can't replicate that semantic
+ * with dynamic initialization (they may have turned bits off that are
+ * set in RES_DEFAULT). Our solution is to declare such applications
+ * "broken". They could fool us by setting RES_INIT but none do (yet).
+ */
+ if (!_res.retrans)
+ _res.retrans = RES_TIMEOUT;
+ if (!_res.retry)
+ _res.retry = 4;
+ if (!(_res.options & RES_INIT))
+ _res.options = RES_DEFAULT;
+
+ /*
+ * This one used to initialize implicitly to zero, so unless the app
+ * has set it to something in particular, we can randomize it now.
+ */
+ if (!_res.id)
+ _res.id = res_randomid();
+
+ return (__res_vinit(&_res, 1));
+}
+
+void
+p_query(const u_char *msg) {
+ fp_query(msg, stdout);
+}
+
+void
+fp_query(const u_char *msg, FILE *file) {
+ fp_nquery(msg, PACKETSZ, file);
+}
+
+void
+fp_nquery(const u_char *msg, int len, FILE *file) {
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1)
+ return;
+
+ res_pquery(&_res, msg, len, file);
+}
+
+int
+res_mkquery(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 */
+{
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+ RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
+ return (-1);
+ }
+ return (res_nmkquery(&_res, op, dname, class, type,
+ data, datalen,
+ newrr_in, buf, buflen));
+}
+
+int
+res_mkupdate(ns_updrec *rrecp_in, u_char *buf, int buflen) {
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+ RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
+ return (-1);
+ }
+
+ return (res_nmkupdate(&_res, rrecp_in, buf, buflen));
+}
+
+int
+res_query(const char *name, /* domain name */
+ int class, int type, /* class and type of query */
+ u_char *answer, /* buffer to put answer */
+ int anslen) /* size of answer buffer */
+{
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+ RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
+ return (-1);
+ }
+ return (res_nquery(&_res, name, class, type, answer, anslen));
+}
+
+void
+res_send_setqhook(res_send_qhook hook) {
+ _res.qhook = hook;
+}
+
+void
+res_send_setrhook(res_send_rhook hook) {
+ _res.rhook = hook;
+}
+
+int
+res_isourserver(const struct sockaddr_in *inp) {
+ return (res_ourserver_p(&_res, inp));
+}
+
+int
+res_send(const u_char *buf, int buflen, u_char *ans, int anssiz) {
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+ /* errno should have been set by res_init() in this case. */
+ return (-1);
+ }
+
+ return (res_nsend(&_res, buf, buflen, ans, anssiz));
+}
+
+int
+res_sendsigned(const u_char *buf, int buflen, ns_tsig_key *key,
+ u_char *ans, int anssiz)
+{
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+ /* errno should have been set by res_init() in this case. */
+ return (-1);
+ }
+
+ return (res_nsendsigned(&_res, buf, buflen, key, ans, anssiz));
+}
+
+void
+res_close(void) {
+ res_nclose(&_res);
+}
+
+int
+res_update(ns_updrec *rrecp_in) {
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+ RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
+ return (-1);
+ }
+
+ return (res_nupdate(&_res, rrecp_in, NULL));
+}
+
+int
+res_search(const char *name, /* domain name */
+ int class, int type, /* class and type of query */
+ u_char *answer, /* buffer to put answer */
+ int anslen) /* size of answer */
+{
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+ RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
+ return (-1);
+ }
+
+ return (res_nsearch(&_res, name, class, type, answer, anslen));
+}
+
+int
+res_querydomain(const char *name,
+ const char *domain,
+ int class, int type, /* class and type of query */
+ u_char *answer, /* buffer to put answer */
+ int anslen) /* size of answer */
+{
+ if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+ RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
+ return (-1);
+ }
+
+ return (res_nquerydomain(&_res, name, domain,
+ class, type,
+ answer, anslen));
+}
+
+const char *
+hostalias(const char *name) {
+ static char abuf[MAXDNAME];
+
+ return (res_hostalias(&_res, name, abuf, sizeof abuf));
+}
+
+#ifdef ultrix
+int
+local_hostname_length(const char *hostname) {
+ int len_host, len_domain;
+
+ if (!*_res.defdname)
+ res_init();
+ len_host = strlen(hostname);
+ len_domain = strlen(_res.defdname);
+ if (len_host > len_domain &&
+ !strcasecmp(hostname + len_host - len_domain, _res.defdname) &&
+ hostname[len_host - len_domain - 1] == '.')
+ return (len_host - len_domain - 1);
+ return (0);
+}
+#endif /*ultrix*/
+
+#endif
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