#include <isccfg/log.h>
#include <isccfg/namedconf.h>
-#include <irs/netdb.h>
#include <irs/resconf.h>
#define CHECK(r) \
libirs_ladir = $(includedir)/irs
libirs_la_HEADERS = \
- include/irs/context.h \
- include/irs/dnsconf.h \
- include/irs/netdb.h \
- include/irs/resconf.h \
- include/irs/types.h
+ include/irs/resconf.h
libirs_la_SOURCES = \
$(libirs_la_HEADERS) \
- context.c \
- dnsconf.c \
- gai_strerror.c \
- getaddrinfo.c \
- getnameinfo.c \
resconf.c
libirs_la_CPPFLAGS = \
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-#include <stdbool.h>
-
-#include <isc/app.h>
-#include <isc/lib.h>
-#include <isc/magic.h>
-#include <isc/mem.h>
-#include <isc/once.h>
-#include <isc/socket.h>
-#include <isc/task.h>
-#include <isc/thread.h>
-#include <isc/timer.h>
-#include <isc/util.h>
-
-#include <dns/client.h>
-#include <dns/lib.h>
-
-#include <irs/context.h>
-#include <irs/dnsconf.h>
-#include <irs/resconf.h>
-
-#define IRS_CONTEXT_MAGIC ISC_MAGIC('I', 'R', 'S', 'c')
-#define IRS_CONTEXT_VALID(c) ISC_MAGIC_VALID(c, IRS_CONTEXT_MAGIC)
-
-#ifndef RESOLV_CONF
-/*% location of resolve.conf */
-#define RESOLV_CONF "/etc/resolv.conf"
-#endif /* ifndef RESOLV_CONF */
-
-#ifndef DNS_CONF
-/*% location of dns.conf */
-#define DNS_CONF "/etc/dns.conf"
-#endif /* ifndef DNS_CONF */
-
-static thread_local irs_context_t *irs_context = NULL;
-
-struct irs_context {
- /*
- * An IRS context is a thread-specific object, and does not need to
- * be locked.
- */
- unsigned int magic;
- isc_mem_t *mctx;
- isc_appctx_t *actx;
- isc_taskmgr_t *taskmgr;
- isc_task_t *task;
- isc_socketmgr_t *socketmgr;
- isc_timermgr_t *timermgr;
- dns_client_t *dnsclient;
- irs_resconf_t *resconf;
- irs_dnsconf_t *dnsconf;
-};
-
-static void
-ctxs_destroy(isc_mem_t **mctxp, isc_appctx_t **actxp, isc_taskmgr_t **taskmgrp,
- isc_socketmgr_t **socketmgrp, isc_timermgr_t **timermgrp) {
- if (taskmgrp != NULL) {
- isc_taskmgr_destroy(taskmgrp);
- }
-
- if (timermgrp != NULL) {
- isc_timermgr_destroy(timermgrp);
- }
-
- if (socketmgrp != NULL) {
- isc_socketmgr_destroy(socketmgrp);
- }
-
- if (actxp != NULL) {
- isc_appctx_destroy(actxp);
- }
-
- if (mctxp != NULL) {
- isc_mem_destroy(mctxp);
- }
-}
-
-static isc_result_t
-ctxs_init(isc_mem_t **mctxp, isc_appctx_t **actxp, isc_taskmgr_t **taskmgrp,
- isc_socketmgr_t **socketmgrp, isc_timermgr_t **timermgrp) {
- isc_result_t result;
-
- isc_mem_create(mctxp);
-
- result = isc_appctx_create(*mctxp, actxp);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- result = isc_taskmgr_createinctx(*mctxp, 1, 0, taskmgrp);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- result = isc_socketmgr_createinctx(*mctxp, socketmgrp);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- result = isc_timermgr_createinctx(*mctxp, timermgrp);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- return (ISC_R_SUCCESS);
-
-fail:
- ctxs_destroy(mctxp, actxp, taskmgrp, socketmgrp, timermgrp);
-
- return (result);
-}
-
-isc_result_t
-irs_context_get(irs_context_t **contextp) {
- isc_result_t result;
-
- REQUIRE(contextp != NULL && *contextp == NULL);
-
- if (irs_context == NULL) {
- result = irs_context_create(&irs_context);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
- }
-
- *contextp = irs_context;
-
- return (ISC_R_SUCCESS);
-}
-
-isc_result_t
-irs_context_create(irs_context_t **contextp) {
- isc_result_t result;
- irs_context_t *context;
- isc_appctx_t *actx = NULL;
- isc_mem_t *mctx = NULL;
- isc_taskmgr_t *taskmgr = NULL;
- isc_socketmgr_t *socketmgr = NULL;
- isc_timermgr_t *timermgr = NULL;
- dns_client_t *client = NULL;
- isc_sockaddrlist_t *nameservers;
- irs_dnsconf_dnskeylist_t *trustedkeys;
- irs_dnsconf_dnskey_t *trustedkey;
-
- isc_lib_register();
- result = dns_lib_init();
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
-
- result = ctxs_init(&mctx, &actx, &taskmgr, &socketmgr, &timermgr);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
-
- result = isc_app_ctxstart(actx);
- if (result != ISC_R_SUCCESS) {
- ctxs_destroy(&mctx, &actx, &taskmgr, &socketmgr, &timermgr);
- return (result);
- }
-
- context = isc_mem_get(mctx, sizeof(*context));
-
- context->mctx = mctx;
- context->actx = actx;
- context->taskmgr = taskmgr;
- context->socketmgr = socketmgr;
- context->timermgr = timermgr;
- context->resconf = NULL;
- context->dnsconf = NULL;
- context->task = NULL;
- result = isc_task_create(taskmgr, 0, &context->task);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- /* Create a DNS client object */
- result = dns_client_createx(mctx, actx, taskmgr, socketmgr, timermgr, 0,
- &client, NULL, NULL);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
- context->dnsclient = client;
-
- /* Read resolver configuration file */
- result = irs_resconf_load(mctx, RESOLV_CONF, &context->resconf);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
- /* Set nameservers */
- nameservers = irs_resconf_getnameservers(context->resconf);
- result = dns_client_setservers(client, dns_rdataclass_in, NULL,
- nameservers);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- /* Read advanced DNS configuration (if any) */
- result = irs_dnsconf_load(mctx, DNS_CONF, &context->dnsconf);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
- trustedkeys = irs_dnsconf_gettrustedkeys(context->dnsconf);
- for (trustedkey = ISC_LIST_HEAD(*trustedkeys); trustedkey != NULL;
- trustedkey = ISC_LIST_NEXT(trustedkey, link))
- {
- result = dns_client_addtrustedkey(
- client, dns_rdataclass_in, dns_rdatatype_dnskey,
- trustedkey->keyname, trustedkey->keydatabuf);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
- }
-
- context->magic = IRS_CONTEXT_MAGIC;
- *contextp = context;
-
- return (ISC_R_SUCCESS);
-
-fail:
- if (context->task != NULL) {
- isc_task_detach(&context->task);
- }
- if (context->resconf != NULL) {
- irs_resconf_destroy(&context->resconf);
- }
- if (context->dnsconf != NULL) {
- irs_dnsconf_destroy(&context->dnsconf);
- }
- if (client != NULL) {
- dns_client_destroy(&client);
- }
- ctxs_destroy(NULL, &actx, &taskmgr, &socketmgr, &timermgr);
- isc_mem_putanddetach(&mctx, context, sizeof(*context));
-
- return (result);
-}
-
-void
-irs_context_destroy(irs_context_t **contextp) {
- irs_context_t *context;
-
- REQUIRE(contextp != NULL);
- context = *contextp;
- REQUIRE(IRS_CONTEXT_VALID(context));
- *contextp = irs_context = NULL;
-
- isc_task_detach(&context->task);
- irs_dnsconf_destroy(&context->dnsconf);
- irs_resconf_destroy(&context->resconf);
- dns_client_destroy(&context->dnsclient);
-
- ctxs_destroy(NULL, &context->actx, &context->taskmgr,
- &context->socketmgr, &context->timermgr);
-
- context->magic = 0;
-
- isc_mem_putanddetach(&context->mctx, context, sizeof(*context));
-}
-
-isc_mem_t *
-irs_context_getmctx(irs_context_t *context) {
- REQUIRE(IRS_CONTEXT_VALID(context));
-
- return (context->mctx);
-}
-
-isc_appctx_t *
-irs_context_getappctx(irs_context_t *context) {
- REQUIRE(IRS_CONTEXT_VALID(context));
-
- return (context->actx);
-}
-
-isc_taskmgr_t *
-irs_context_gettaskmgr(irs_context_t *context) {
- REQUIRE(IRS_CONTEXT_VALID(context));
-
- return (context->taskmgr);
-}
-
-isc_timermgr_t *
-irs_context_gettimermgr(irs_context_t *context) {
- REQUIRE(IRS_CONTEXT_VALID(context));
-
- return (context->timermgr);
-}
-
-isc_task_t *
-irs_context_gettask(irs_context_t *context) {
- REQUIRE(IRS_CONTEXT_VALID(context));
-
- return (context->task);
-}
-
-dns_client_t *
-irs_context_getdnsclient(irs_context_t *context) {
- REQUIRE(IRS_CONTEXT_VALID(context));
-
- return (context->dnsclient);
-}
-
-irs_resconf_t *
-irs_context_getresconf(irs_context_t *context) {
- REQUIRE(IRS_CONTEXT_VALID(context));
-
- return (context->resconf);
-}
-
-irs_dnsconf_t *
-irs_context_getdnsconf(irs_context_t *context) {
- REQUIRE(IRS_CONTEXT_VALID(context));
-
- return (context->dnsconf);
-}
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*! \file */
-
-#include <inttypes.h>
-#include <string.h>
-
-#include <isc/base64.h>
-#include <isc/buffer.h>
-#include <isc/file.h>
-#include <isc/mem.h>
-#include <isc/util.h>
-
-#include <dns/fixedname.h>
-#include <dns/name.h>
-#include <dns/rdata.h>
-#include <dns/rdatastruct.h>
-
-#include <isccfg/dnsconf.h>
-
-#include <irs/dnsconf.h>
-
-#define IRS_DNSCONF_MAGIC ISC_MAGIC('D', 'c', 'f', 'g')
-#define IRS_DNSCONF_VALID(c) ISC_MAGIC_VALID(c, IRS_DNSCONF_MAGIC)
-
-/*!
- * configuration data structure
- */
-
-struct irs_dnsconf {
- unsigned int magic;
- isc_mem_t *mctx;
- irs_dnsconf_dnskeylist_t trusted_keylist;
-};
-
-static isc_result_t
-configure_key(isc_mem_t *mctx, const cfg_obj_t *key, irs_dnsconf_t *conf,
- dns_rdataclass_t rdclass) {
- isc_result_t result;
- uint32_t flags, proto, alg;
- dns_fixedname_t fkeyname;
- dns_name_t *keyname_base = NULL, *keyname = NULL;
- const char *keystr = NULL, *keynamestr = NULL;
- unsigned char keydata[4096];
- isc_buffer_t keydatabuf_base, *keydatabuf = NULL;
- dns_rdata_dnskey_t keystruct;
- unsigned char rrdata[4096];
- isc_buffer_t rrdatabuf;
- isc_region_t r;
- isc_buffer_t namebuf;
- irs_dnsconf_dnskey_t *keyent = NULL;
-
- flags = cfg_obj_asuint32(cfg_tuple_get(key, "flags"));
- proto = cfg_obj_asuint32(cfg_tuple_get(key, "protocol"));
- alg = cfg_obj_asuint32(cfg_tuple_get(key, "algorithm"));
- keynamestr = cfg_obj_asstring(cfg_tuple_get(key, "name"));
-
- keystruct.common.rdclass = rdclass;
- keystruct.common.rdtype = dns_rdatatype_dnskey;
- keystruct.mctx = NULL;
- ISC_LINK_INIT(&keystruct.common, link);
-
- if (flags > 0xffff) {
- return (ISC_R_RANGE);
- }
- if (proto > 0xff) {
- return (ISC_R_RANGE);
- }
- if (alg > 0xff) {
- return (ISC_R_RANGE);
- }
- keystruct.flags = (uint16_t)flags;
- keystruct.protocol = (uint8_t)proto;
- keystruct.algorithm = (uint8_t)alg;
-
- isc_buffer_init(&keydatabuf_base, keydata, sizeof(keydata));
- isc_buffer_init(&rrdatabuf, rrdata, sizeof(rrdata));
-
- /* Configure key value */
- keystr = cfg_obj_asstring(cfg_tuple_get(key, "key"));
- result = isc_base64_decodestring(keystr, &keydatabuf_base);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
- isc_buffer_usedregion(&keydatabuf_base, &r);
- keystruct.datalen = r.length;
- keystruct.data = r.base;
-
- result = dns_rdata_fromstruct(NULL, keystruct.common.rdclass,
- keystruct.common.rdtype, &keystruct,
- &rrdatabuf);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
- isc_buffer_usedregion(&rrdatabuf, &r);
- isc_buffer_allocate(mctx, &keydatabuf, r.length);
- result = isc_buffer_copyregion(keydatabuf, &r);
- if (result != ISC_R_SUCCESS) {
- goto cleanup;
- }
-
- /* Configure key name */
- keyname_base = dns_fixedname_initname(&fkeyname);
- isc_buffer_constinit(&namebuf, keynamestr, strlen(keynamestr));
- isc_buffer_add(&namebuf, strlen(keynamestr));
- result = dns_name_fromtext(keyname_base, &namebuf, dns_rootname, 0,
- NULL);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
- keyname = isc_mem_get(mctx, sizeof(*keyname));
- dns_name_init(keyname, NULL);
- dns_name_dup(keyname_base, mctx, keyname);
-
- /* Add the key data to the list */
- keyent = isc_mem_get(mctx, sizeof(*keyent));
- keyent->keyname = keyname;
- keyent->keydatabuf = keydatabuf;
-
- ISC_LIST_APPEND(conf->trusted_keylist, keyent, link);
-
-cleanup:
- if (keydatabuf != NULL) {
- isc_buffer_free(&keydatabuf);
- }
- if (keyname != NULL) {
- isc_mem_put(mctx, keyname, sizeof(*keyname));
- }
-
- return (result);
-}
-
-static isc_result_t
-configure_keygroup(irs_dnsconf_t *conf, const cfg_obj_t *keys,
- dns_rdataclass_t rdclass) {
- isc_result_t result;
- const cfg_obj_t *key, *keylist;
- const cfg_listelt_t *element, *element2;
- isc_mem_t *mctx = conf->mctx;
-
- for (element = cfg_list_first(keys); element != NULL;
- element = cfg_list_next(element))
- {
- keylist = cfg_listelt_value(element);
- for (element2 = cfg_list_first(keylist); element2 != NULL;
- element2 = cfg_list_next(element2))
- {
- key = cfg_listelt_value(element2);
- result = configure_key(mctx, key, conf, rdclass);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
- }
- }
-
- return (ISC_R_SUCCESS);
-}
-
-static isc_result_t
-configure_dnsseckeys(irs_dnsconf_t *conf, cfg_obj_t *cfgobj,
- dns_rdataclass_t rdclass) {
- isc_result_t result;
- const cfg_obj_t *keys = NULL;
-
- cfg_map_get(cfgobj, "trusted-keys", &keys);
- if (keys == NULL) {
- return (ISC_R_SUCCESS);
- }
-
- result = configure_keygroup(conf, keys, rdclass);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
-
- keys = NULL;
- cfg_map_get(cfgobj, "trust-anchors", &keys);
- if (keys == NULL) {
- return (ISC_R_SUCCESS);
- }
-
- result = configure_keygroup(conf, keys, rdclass);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
-
- keys = NULL;
- cfg_map_get(cfgobj, "managed-keys", &keys);
- if (keys == NULL) {
- return (ISC_R_SUCCESS);
- }
-
- result = configure_keygroup(conf, keys, rdclass);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
-
- return (ISC_R_SUCCESS);
-}
-
-isc_result_t
-irs_dnsconf_load(isc_mem_t *mctx, const char *filename, irs_dnsconf_t **confp) {
- irs_dnsconf_t *conf;
- cfg_parser_t *parser = NULL;
- cfg_obj_t *cfgobj = NULL;
- isc_result_t result = ISC_R_SUCCESS;
-
- REQUIRE(confp != NULL && *confp == NULL);
-
- conf = isc_mem_get(mctx, sizeof(*conf));
-
- conf->mctx = mctx;
- ISC_LIST_INIT(conf->trusted_keylist);
-
- /*
- * If the specified file does not exist, we'll simply with an empty
- * configuration.
- */
- if (!isc_file_exists(filename)) {
- goto cleanup;
- }
-
- result = cfg_parser_create(mctx, NULL, &parser);
- if (result != ISC_R_SUCCESS) {
- goto cleanup;
- }
-
- result = cfg_parse_file(parser, filename, &cfg_type_dnsconf, &cfgobj);
- if (result != ISC_R_SUCCESS) {
- goto cleanup;
- }
-
- result = configure_dnsseckeys(conf, cfgobj, dns_rdataclass_in);
-
-cleanup:
- if (parser != NULL) {
- if (cfgobj != NULL) {
- cfg_obj_destroy(parser, &cfgobj);
- }
- cfg_parser_destroy(&parser);
- }
-
- conf->magic = IRS_DNSCONF_MAGIC;
-
- if (result == ISC_R_SUCCESS) {
- *confp = conf;
- } else {
- irs_dnsconf_destroy(&conf);
- }
-
- return (result);
-}
-
-void
-irs_dnsconf_destroy(irs_dnsconf_t **confp) {
- irs_dnsconf_t *conf;
- irs_dnsconf_dnskey_t *keyent;
-
- REQUIRE(confp != NULL);
- conf = *confp;
- *confp = NULL;
- REQUIRE(IRS_DNSCONF_VALID(conf));
-
- while ((keyent = ISC_LIST_HEAD(conf->trusted_keylist)) != NULL) {
- ISC_LIST_UNLINK(conf->trusted_keylist, keyent, link);
-
- isc_buffer_free(&keyent->keydatabuf);
- dns_name_free(keyent->keyname, conf->mctx);
- isc_mem_put(conf->mctx, keyent->keyname, sizeof(dns_name_t));
- isc_mem_put(conf->mctx, keyent, sizeof(*keyent));
- }
-
- isc_mem_put(conf->mctx, conf, sizeof(*conf));
-}
-
-irs_dnsconf_dnskeylist_t *
-irs_dnsconf_gettrustedkeys(irs_dnsconf_t *conf) {
- REQUIRE(IRS_DNSCONF_VALID(conf));
-
- return (&conf->trusted_keylist);
-}
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*! \file gai_strerror.c
- * gai_strerror() returns an error message corresponding to an
- * error code returned by getaddrinfo() and getnameinfo(). The following error
- * codes and their meaning are defined in
- * \link netdb.h include/irs/netdb.h.\endlink
- * This implementation is almost an exact copy of lwres/gai_sterror.c except
- * that it catches up the latest API standard, RFC3493.
- *
- * \li #EAI_ADDRFAMILY address family for hostname not supported
- * \li #EAI_AGAIN temporary failure in name resolution
- * \li #EAI_BADFLAGS invalid value for ai_flags
- * \li #EAI_FAIL non-recoverable failure in name resolution
- * \li #EAI_FAMILY ai_family not supported
- * \li #EAI_MEMORY memory allocation failure
- * \li #EAI_NODATA no address associated with hostname (obsoleted in RFC3493)
- * \li #EAI_NONAME hostname nor servname provided, or not known
- * \li #EAI_SERVICE servname not supported for ai_socktype
- * \li #EAI_SOCKTYPE ai_socktype not supported
- * \li #EAI_SYSTEM system error returned in errno
- * \li #EAI_BADHINTS Invalid value for hints (non-standard)
- * \li #EAI_PROTOCOL Resolved protocol is unknown (non-standard)
- * \li #EAI_OVERFLOW Argument buffer overflow
- * \li #EAI_INSECUREDATA Insecure Data (experimental)
- *
- * The message invalid error code is returned if ecode is out of range.
- *
- * ai_flags, ai_family and ai_socktype are elements of the struct
- * addrinfo used by lwres_getaddrinfo().
- *
- * \section gai_strerror_see See Also
- *
- * strerror(), getaddrinfo(), getnameinfo(), RFC3493.
- */
-
-#include <isc/net.h>
-
-#include <irs/netdb.h>
-
-/*% Text of error messages. */
-static const char *gai_messages[] = { "no error",
- "address family for hostname not "
- "supported",
- "temporary failure in name resolution",
- "invalid value for ai_flags",
- "non-recoverable failure in name "
- "resolution",
- "ai_family not supported",
- "memory allocation failure",
- "no address associated with hostname",
- "hostname nor servname provided, or not "
- "known",
- "servname not supported for ai_socktype",
- "ai_socktype not supported",
- "system error returned in errno",
- "bad hints",
- "bad protocol",
- "argument buffer overflow",
- "insecure data provided" };
-
-/*%
- * Returns an error message corresponding to an error code returned by
- * getaddrinfo() and getnameinfo()
- */
-#if defined _WIN32
-char *
-#else /* if defined _WIN32 */
-const char *
-#endif /* if defined _WIN32 */
-gai_strerror(int ecode) {
- union {
- const char *const_ptr;
- char *deconst_ptr;
- } ptr;
-
- if ((ecode < 0) ||
- (ecode >= (int)(sizeof(gai_messages) / sizeof(*gai_messages))))
- {
- ptr.const_ptr = "invalid error code";
- } else {
- ptr.const_ptr = gai_messages[ecode];
- }
- return (ptr.deconst_ptr);
-}
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*! \file */
-
-/**
- * getaddrinfo() is used to get a list of IP addresses and port
- * numbers for host hostname and service servname as defined in RFC3493.
- * hostname and servname are pointers to null-terminated strings
- * or NULL. hostname is either a host name or a numeric host address
- * string: a dotted decimal IPv4 address or an IPv6 address. servname is
- * either a decimal port number or a service name as listed in
- * /etc/services.
- *
- * If the operating system does not provide a struct addrinfo, the
- * following structure is used:
- *
- * \code
- * struct addrinfo {
- * int ai_flags; // AI_PASSIVE, AI_CANONNAME
- * int ai_family; // PF_xxx
- * int ai_socktype; // SOCK_xxx
- * int ai_protocol; // 0 or IPPROTO_xxx for IPv4 and IPv6
- * size_t ai_addrlen; // length of ai_addr
- * char *ai_canonname; // canonical name for hostname
- * struct sockaddr *ai_addr; // binary address
- * struct addrinfo *ai_next; // next structure in linked list
- * };
- * \endcode
- *
- *
- * hints is an optional pointer to a struct addrinfo. This structure can
- * be used to provide hints concerning the type of socket that the caller
- * supports or wishes to use. The caller can supply the following
- * structure elements in *hints:
- *
- * <ul>
- * <li>ai_family:
- * The protocol family that should be used. When ai_family is set
- * to PF_UNSPEC, it means the caller will accept any protocol
- * family supported by the operating system.</li>
- *
- * <li>ai_socktype:
- * denotes the type of socket -- SOCK_STREAM, SOCK_DGRAM or
- * SOCK_RAW -- that is wanted. When ai_socktype is zero the caller
- * will accept any socket type.</li>
- *
- * <li>ai_protocol:
- * indicates which transport protocol is wanted: IPPROTO_UDP or
- * IPPROTO_TCP. If ai_protocol is zero the caller will accept any
- * protocol.</li>
- *
- * <li>ai_flags:
- * Flag bits. If the AI_CANONNAME bit is set, a successful call to
- * getaddrinfo() will return a null-terminated string
- * containing the canonical name of the specified hostname in
- * ai_canonname of the first addrinfo structure returned. Setting
- * the AI_PASSIVE bit indicates that the returned socket address
- * structure is intended for used in a call to bind(2). In this
- * case, if the hostname argument is a NULL pointer, then the IP
- * address portion of the socket address structure will be set to
- * INADDR_ANY for an IPv4 address or IN6ADDR_ANY_INIT for an IPv6
- * address.<br /><br />
- *
- * When ai_flags does not set the AI_PASSIVE bit, the returned
- * socket address structure will be ready for use in a call to
- * connect(2) for a connection-oriented protocol or connect(2),
- * sendto(2), or sendmsg(2) if a connectionless protocol was
- * chosen. The IP address portion of the socket address structure
- * will be set to the loopback address if hostname is a NULL
- * pointer and AI_PASSIVE is not set in ai_flags.<br /><br />
- *
- * If ai_flags is set to AI_NUMERICHOST it indicates that hostname
- * should be treated as a numeric string defining an IPv4 or IPv6
- * address and no name resolution should be attempted.
- * </li></ul>
- *
- * All other elements of the struct addrinfo passed via hints must be
- * zero.
- *
- * A hints of NULL is treated as if the caller provided a struct addrinfo
- * initialized to zero with ai_familyset to PF_UNSPEC.
- *
- * After a successful call to getaddrinfo(), *res is a pointer to a
- * linked list of one or more addrinfo structures. Each struct addrinfo
- * in this list cn be processed by following the ai_next pointer, until a
- * NULL pointer is encountered. The three members ai_family, ai_socktype,
- * and ai_protocol in each returned addrinfo structure contain the
- * corresponding arguments for a call to socket(2). For each addrinfo
- * structure in the list, the ai_addr member points to a filled-in socket
- * address structure of length ai_addrlen.
- *
- * All of the information returned by getaddrinfo() is dynamically
- * allocated: the addrinfo structures, and the socket address structures
- * and canonical host name strings pointed to by the addrinfostructures.
- * Memory allocated for the dynamically allocated structures created by a
- * successful call to getaddrinfo() is released by freeaddrinfo().
- * ai is a pointer to a struct addrinfo created by a call to getaddrinfo().
- *
- * \section irsreturn RETURN VALUES
- *
- * getaddrinfo() returns zero on success or one of the error codes
- * listed in gai_strerror() if an error occurs. If both hostname and
- * servname are NULL getaddrinfo() returns #EAI_NONAME.
- *
- * \section irssee SEE ALSO
- *
- * getaddrinfo(), freeaddrinfo(),
- * gai_strerror(), RFC3493, getservbyname(3), connect(2),
- * sendto(2), sendmsg(2), socket(2).
- */
-
-#include <errno.h>
-#include <inttypes.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifdef _WIN32
-#include <windows.h>
-#include <winsock2.h>
-#include <ws2tcpip.h>
-#endif /* ifdef _WIN32 */
-
-#include <isc/app.h>
-#include <isc/buffer.h>
-#include <isc/lib.h>
-#include <isc/mem.h>
-#include <isc/mutex.h>
-#include <isc/print.h>
-#include <isc/sockaddr.h>
-#include <isc/string.h>
-#include <isc/util.h>
-
-#include <dns/client.h>
-#include <dns/fixedname.h>
-#include <dns/name.h>
-#include <dns/rdata.h>
-#include <dns/rdataset.h>
-#include <dns/rdatastruct.h>
-#include <dns/rdatatype.h>
-#include <dns/result.h>
-
-#include <irs/context.h>
-#include <irs/netdb.h>
-#include <irs/resconf.h>
-
-#define SA(addr) ((struct sockaddr *)(addr))
-#define SIN(addr) ((struct sockaddr_in *)(addr))
-#define SIN6(addr) ((struct sockaddr_in6 *)(addr))
-#define SLOCAL(addr) ((struct sockaddr_un *)(addr))
-
-/*! \struct addrinfo
- */
-static struct addrinfo *
-ai_concat(struct addrinfo *ai1, struct addrinfo *ai2),
- *ai_reverse(struct addrinfo *oai),
- *ai_clone(struct addrinfo *oai, int family),
- *ai_alloc(int family, int addrlen);
-#ifdef AF_LOCAL
-static int
-get_local(const char *name, int socktype, struct addrinfo **res);
-#endif /* ifdef AF_LOCAL */
-
-static int
-resolve_name(int family, const char *hostname, int flags, struct addrinfo **aip,
- int socktype, int port);
-
-static int
-add_ipv4(const char *hostname, int flags, struct addrinfo **aip, int socktype,
- int port);
-static int
-add_ipv6(const char *hostname, int flags, struct addrinfo **aip, int socktype,
- int port);
-static void
-set_order(int, int (**)(const char *, int, struct addrinfo **, int, int));
-static void
-_freeaddrinfo(struct addrinfo *ai);
-
-#define FOUND_IPV4 0x1
-#define FOUND_IPV6 0x2
-#define FOUND_MAX 2
-
-/*%
- * Try converting the scope identifier in 'src' to a network interface index.
- * Upon success, return true and store the resulting index in 'dst'. Upon
- * failure, return false.
- */
-static bool
-parse_scopeid(const char *src, uint32_t *dst) {
- uint32_t scopeid = 0;
-
- REQUIRE(src != NULL);
- REQUIRE(dst != NULL);
-
-#ifdef HAVE_IF_NAMETOINDEX
- /*
- * Try using if_nametoindex() first if it is available. As it does not
- * handle numeric scopes, we do not simply return if it fails.
- */
- scopeid = (uint32_t)if_nametoindex(src);
-#endif /* ifdef HAVE_IF_NAMETOINDEX */
-
- /*
- * Fall back to numeric scope processing if if_nametoindex() either
- * fails or is unavailable.
- */
- if (scopeid == 0) {
- char *endptr = NULL;
- scopeid = (uint32_t)strtoul(src, &endptr, 10);
- /*
- * The scope identifier must not be empty and no trailing
- * characters are allowed after it.
- */
- if (src == endptr || endptr == NULL || *endptr != '\0') {
- return (false);
- }
- }
-
- *dst = scopeid;
-
- return (true);
-}
-
-#define ISC_AI_MASK (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
-/*%
- * Get a list of IP addresses and port numbers for host hostname and
- * service servname.
- */
-int
-getaddrinfo(const char *hostname, const char *servname,
- const struct addrinfo *hints, struct addrinfo **res) {
- struct servent *sp;
- const char *proto;
- int family, socktype, flags, protocol;
- struct addrinfo *ai, *ai_list;
- int err = 0;
- int port, i;
- int (*net_order[FOUND_MAX + 1])(const char *, int, struct addrinfo **,
- int, int);
-
- if (hostname == NULL && servname == NULL) {
- return (EAI_NONAME);
- }
-
- proto = NULL;
- if (hints != NULL) {
- if ((hints->ai_flags & ~(ISC_AI_MASK)) != 0) {
- return (EAI_BADFLAGS);
- }
- if (hints->ai_addrlen || hints->ai_canonname ||
- hints->ai_addr || hints->ai_next)
- {
- errno = EINVAL;
- return (EAI_SYSTEM);
- }
- family = hints->ai_family;
- socktype = hints->ai_socktype;
- protocol = hints->ai_protocol;
- flags = hints->ai_flags;
- switch (family) {
- case AF_UNSPEC:
- switch (hints->ai_socktype) {
- case SOCK_STREAM:
- proto = "tcp";
- break;
- case SOCK_DGRAM:
- proto = "udp";
- break;
- }
- break;
- case AF_INET:
- case AF_INET6:
- switch (hints->ai_socktype) {
- case 0:
- break;
- case SOCK_STREAM:
- proto = "tcp";
- break;
- case SOCK_DGRAM:
- proto = "udp";
- break;
- case SOCK_RAW:
- break;
- default:
- return (EAI_SOCKTYPE);
- }
- break;
-#ifdef AF_LOCAL
- case AF_LOCAL:
- switch (hints->ai_socktype) {
- case 0:
- break;
- case SOCK_STREAM:
- break;
- case SOCK_DGRAM:
- break;
- default:
- return (EAI_SOCKTYPE);
- }
- break;
-#endif /* ifdef AF_LOCAL */
- default:
- return (EAI_FAMILY);
- }
- } else {
- protocol = 0;
- family = 0;
- socktype = 0;
- flags = 0;
- }
-
-#ifdef AF_LOCAL
- /*!
- * First, deal with AF_LOCAL. If the family was not set,
- * then assume AF_LOCAL if the first character of the
- * hostname/servname is '/'.
- */
-
- if (hostname != NULL &&
- (family == AF_LOCAL || (family == 0 && *hostname == '/')))
- {
- return (get_local(hostname, socktype, res));
- }
-
- if (servname != NULL &&
- (family == AF_LOCAL || (family == 0 && *servname == '/')))
- {
- return (get_local(servname, socktype, res));
- }
-#endif /* ifdef AF_LOCAL */
-
- /*
- * Ok, only AF_INET and AF_INET6 left.
- */
- ai_list = NULL;
-
- /*
- * First, look up the service name (port) if it was
- * requested. If the socket type wasn't specified, then
- * try and figure it out.
- */
- if (servname != NULL) {
- char *e;
-
- port = strtol(servname, &e, 10);
- if (*e == '\0') {
- if (socktype == 0) {
- return (EAI_SOCKTYPE);
- }
- if (port < 0 || port > 65535) {
- return (EAI_SERVICE);
- }
- port = htons((unsigned short)port);
- } else {
-#ifdef _WIN32
- WORD wVersionRequested;
- WSADATA wsaData;
-
- wVersionRequested = MAKEWORD(2, 0);
-
- err = WSAStartup(wVersionRequested, &wsaData);
- if (err != 0) {
- return (EAI_FAIL);
- }
-#endif /* ifdef _WIN32 */
- sp = getservbyname(servname, proto);
- if (sp != NULL) {
- port = sp->s_port;
- }
-#ifdef _WIN32
- WSACleanup();
-#endif /* ifdef _WIN32 */
- if (sp == NULL) {
- return (EAI_SERVICE);
- }
- if (socktype == 0) {
- if (strcmp(sp->s_proto, "tcp") == 0) {
- socktype = SOCK_STREAM;
- } else if (strcmp(sp->s_proto, "udp") == 0) {
- socktype = SOCK_DGRAM;
- }
- }
- }
- } else {
- port = 0;
- }
-
- /*
- * Next, deal with just a service name, and no hostname.
- * (we verified that one of them was non-null up above).
- */
- if (hostname == NULL && (flags & AI_PASSIVE) != 0) {
- if (family == AF_INET || family == 0) {
- ai = ai_alloc(AF_INET, sizeof(struct sockaddr_in));
- if (ai == NULL) {
- return (EAI_MEMORY);
- }
- ai->ai_socktype = socktype;
- ai->ai_protocol = protocol;
- SIN(ai->ai_addr)->sin_port = port;
- ai->ai_next = ai_list;
- ai_list = ai;
- }
-
- if (family == AF_INET6 || family == 0) {
- ai = ai_alloc(AF_INET6, sizeof(struct sockaddr_in6));
- if (ai == NULL) {
- _freeaddrinfo(ai_list);
- return (EAI_MEMORY);
- }
- ai->ai_socktype = socktype;
- ai->ai_protocol = protocol;
- SIN6(ai->ai_addr)->sin6_port = port;
- ai->ai_next = ai_list;
- ai_list = ai;
- }
-
- *res = ai_list;
- return (0);
- }
-
- /*
- * If the family isn't specified or AI_NUMERICHOST specified, check
- * first to see if it is a numeric address.
- * Though the gethostbyname2() routine will recognize numeric addresses,
- * it will only recognize the format that it is being called for. Thus,
- * a numeric AF_INET address will be treated by the AF_INET6 call as
- * a domain name, and vice versa. Checking for both numerics here
- * avoids that.
- */
- if (hostname != NULL && (family == 0 || (flags & AI_NUMERICHOST) != 0))
- {
- char abuf[sizeof(struct in6_addr)];
- char nbuf[NI_MAXHOST];
- int addrsize, addroff;
- char ntmp[NI_MAXHOST];
- uint32_t scopeid = 0;
-
- /*
- * Scope identifier portion.
- */
- ntmp[0] = '\0';
- if (strchr(hostname, '%') != NULL) {
- char *p;
- strlcpy(ntmp, hostname, sizeof(ntmp));
- p = strchr(ntmp, '%');
-
- if (p != NULL && parse_scopeid(p + 1, &scopeid)) {
- *p = '\0';
- } else {
- ntmp[0] = '\0';
- }
- }
-
- if (inet_pton(AF_INET, hostname, (struct in_addr *)abuf) == 1) {
- if (family == AF_INET6) {
- /*
- * Convert to a V4 mapped address.
- */
- struct in6_addr *a6 = (struct in6_addr *)abuf;
- memmove(&a6->s6_addr[12], &a6->s6_addr[0], 4);
- memset(&a6->s6_addr[10], 0xff, 2);
- memset(&a6->s6_addr[0], 0, 10);
- goto inet6_addr;
- }
- addrsize = sizeof(struct in_addr);
- addroff = offsetof(struct sockaddr_in, sin_addr);
- family = AF_INET;
- goto common;
- } else if (ntmp[0] != '\0' &&
- inet_pton(AF_INET6, ntmp, abuf) == 1) {
- if (family && family != AF_INET6) {
- return (EAI_NONAME);
- }
- addrsize = sizeof(struct in6_addr);
- addroff = offsetof(struct sockaddr_in6, sin6_addr);
- family = AF_INET6;
- goto common;
- } else if (inet_pton(AF_INET6, hostname, abuf) == 1) {
- if (family != 0 && family != AF_INET6) {
- return (EAI_NONAME);
- }
- inet6_addr:
- addrsize = sizeof(struct in6_addr);
- addroff = offsetof(struct sockaddr_in6, sin6_addr);
- family = AF_INET6;
-
- common:
- ai = ai_alloc(family,
- ((family == AF_INET6)
- ? sizeof(struct sockaddr_in6)
- : sizeof(struct sockaddr_in)));
- if (ai == NULL) {
- return (EAI_MEMORY);
- }
- ai_list = ai;
- ai->ai_socktype = socktype;
- SIN(ai->ai_addr)->sin_port = port;
- memmove((char *)ai->ai_addr + addroff, abuf, addrsize);
- if (ai->ai_family == AF_INET6) {
- SIN6(ai->ai_addr)->sin6_scope_id = scopeid;
- }
- if ((flags & AI_CANONNAME) != 0) {
- if (getnameinfo(ai->ai_addr,
- (socklen_t)ai->ai_addrlen, nbuf,
- sizeof(nbuf), NULL, 0,
- NI_NUMERICHOST) == 0)
- {
- ai->ai_canonname = strdup(nbuf);
- if (ai->ai_canonname == NULL) {
- _freeaddrinfo(ai);
- return (EAI_MEMORY);
- }
- } else {
- /* XXX raise error? */
- ai->ai_canonname = NULL;
- }
- }
- goto done;
- } else if ((flags & AI_NUMERICHOST) != 0) {
- return (EAI_NONAME);
- }
- }
-
- if (hostname == NULL && (flags & AI_PASSIVE) == 0) {
- set_order(family, net_order);
- for (i = 0; i < FOUND_MAX; i++) {
- if (net_order[i] == NULL) {
- break;
- }
- err = (net_order[i])(hostname, flags, &ai_list,
- socktype, port);
- if (err != 0) {
- if (ai_list != NULL) {
- _freeaddrinfo(ai_list);
- ai_list = NULL;
- }
- break;
- }
- }
- } else {
- err = resolve_name(family, hostname, flags, &ai_list, socktype,
- port);
- }
-
- if (ai_list == NULL) {
- if (err == 0) {
- err = EAI_NONAME;
- }
- return (err);
- }
-
-done:
- ai_list = ai_reverse(ai_list);
-
- *res = ai_list;
- return (0);
-}
-
-typedef struct gai_restrans {
- dns_clientrestrans_t *xid;
- bool is_inprogress;
- int error;
- struct addrinfo ai_sentinel;
- struct gai_resstate *resstate;
-} gai_restrans_t;
-
-typedef struct gai_resstate {
- isc_mem_t *mctx;
- struct gai_statehead *head;
- dns_fixedname_t fixedname;
- dns_name_t *qname;
- gai_restrans_t *trans4;
- gai_restrans_t *trans6;
- ISC_LINK(struct gai_resstate) link;
-} gai_resstate_t;
-
-typedef struct gai_statehead {
- int ai_family;
- int ai_flags;
- int ai_socktype;
- int ai_port;
- isc_appctx_t *actx;
- dns_client_t *dnsclient;
- isc_mutex_t list_lock;
- ISC_LIST(struct gai_resstate) resstates;
- unsigned int activestates;
-} gai_statehead_t;
-
-static isc_result_t
-make_resstate(isc_mem_t *mctx, gai_statehead_t *head, const char *hostname,
- const char *domain, gai_resstate_t **statep) {
- isc_result_t result;
- gai_resstate_t *state;
- dns_fixedname_t fixeddomain;
- dns_name_t *qdomain;
- unsigned int namelen;
- isc_buffer_t b;
- bool need_v4 = false;
- bool need_v6 = false;
-
- state = isc_mem_get(mctx, sizeof(*state));
-
- /* Construct base domain name */
- namelen = strlen(domain);
- isc_buffer_constinit(&b, domain, namelen);
- isc_buffer_add(&b, namelen);
- qdomain = dns_fixedname_initname(&fixeddomain);
- result = dns_name_fromtext(qdomain, &b, dns_rootname, 0, NULL);
- if (result != ISC_R_SUCCESS) {
- isc_mem_put(mctx, state, sizeof(*state));
- return (result);
- }
-
- /* Construct query name */
- namelen = strlen(hostname);
- isc_buffer_constinit(&b, hostname, namelen);
- isc_buffer_add(&b, namelen);
- state->qname = dns_fixedname_initname(&state->fixedname);
- result = dns_name_fromtext(state->qname, &b, qdomain, 0, NULL);
- if (result != ISC_R_SUCCESS) {
- isc_mem_put(mctx, state, sizeof(*state));
- return (result);
- }
-
- if (head->ai_family == AF_UNSPEC || head->ai_family == AF_INET) {
- need_v4 = true;
- }
- if (head->ai_family == AF_UNSPEC || head->ai_family == AF_INET6) {
- need_v6 = true;
- }
-
- state->trans6 = NULL;
- state->trans4 = NULL;
- if (need_v4) {
- state->trans4 = isc_mem_get(mctx, sizeof(gai_restrans_t));
- state->trans4->error = 0;
- state->trans4->xid = NULL;
- state->trans4->resstate = state;
- state->trans4->is_inprogress = true;
- state->trans4->ai_sentinel.ai_next = NULL;
- }
- if (need_v6) {
- state->trans6 = isc_mem_get(mctx, sizeof(gai_restrans_t));
- state->trans6->error = 0;
- state->trans6->xid = NULL;
- state->trans6->resstate = state;
- state->trans6->is_inprogress = true;
- state->trans6->ai_sentinel.ai_next = NULL;
- }
-
- state->mctx = mctx;
- state->head = head;
- ISC_LINK_INIT(state, link);
-
- *statep = state;
-
- return (ISC_R_SUCCESS);
-}
-
-static isc_result_t
-make_resstates(isc_mem_t *mctx, const char *hostname, gai_statehead_t *head,
- irs_resconf_t *resconf) {
- isc_result_t result;
- irs_resconf_searchlist_t *searchlist;
- irs_resconf_search_t *searchent;
- gai_resstate_t *resstate, *resstate0;
-
- resstate0 = NULL;
- result = make_resstate(mctx, head, hostname, ".", &resstate0);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
-
- searchlist = irs_resconf_getsearchlist(resconf);
- for (searchent = ISC_LIST_HEAD(*searchlist); searchent != NULL;
- searchent = ISC_LIST_NEXT(searchent, link))
- {
- resstate = NULL;
- result = make_resstate(mctx, head, hostname,
- (const char *)searchent->domain,
- &resstate);
- if (result != ISC_R_SUCCESS) {
- break;
- }
-
- ISC_LIST_APPEND(head->resstates, resstate, link);
- head->activestates++;
- }
-
- /*
- * Insert the original hostname either at the head or the tail of the
- * state list, depending on the number of labels contained in the
- * original name and the 'ndots' configuration parameter.
- */
- if (dns_name_countlabels(resstate0->qname) >
- irs_resconf_getndots(resconf) + 1) {
- ISC_LIST_PREPEND(head->resstates, resstate0, link);
- } else {
- ISC_LIST_APPEND(head->resstates, resstate0, link);
- }
- head->activestates++;
-
- if (result != ISC_R_SUCCESS) {
- while ((resstate = ISC_LIST_HEAD(head->resstates)) != NULL) {
- ISC_LIST_UNLINK(head->resstates, resstate, link);
- if (resstate->trans4 != NULL) {
- isc_mem_put(mctx, resstate->trans4,
- sizeof(*resstate->trans4));
- }
- if (resstate->trans6 != NULL) {
- isc_mem_put(mctx, resstate->trans6,
- sizeof(*resstate->trans6));
- }
-
- isc_mem_put(mctx, resstate, sizeof(*resstate));
- }
- }
-
- return (result);
-}
-
-static void
-process_answer(isc_task_t *task, isc_event_t *event) {
- int error = 0, family;
- gai_restrans_t *trans = event->ev_arg;
- gai_resstate_t *resstate;
- dns_clientresevent_t *rev = (dns_clientresevent_t *)event;
- dns_rdatatype_t qtype;
- dns_name_t *name;
- bool wantcname;
-
- REQUIRE(trans != NULL);
- resstate = trans->resstate;
- REQUIRE(resstate != NULL);
- REQUIRE(task != NULL);
-
- if (trans == resstate->trans4) {
- family = AF_INET;
- qtype = dns_rdatatype_a;
- } else {
- INSIST(trans == resstate->trans6);
- family = AF_INET6;
- qtype = dns_rdatatype_aaaa;
- }
-
- INSIST(trans->is_inprogress);
- trans->is_inprogress = false;
-
- switch (rev->result) {
- case ISC_R_SUCCESS:
- case DNS_R_NCACHENXDOMAIN: /* treat this as a fatal error? */
- case DNS_R_NCACHENXRRSET:
- break;
- default:
- switch (rev->vresult) {
- case DNS_R_SIGINVALID:
- case DNS_R_SIGEXPIRED:
- case DNS_R_SIGFUTURE:
- case DNS_R_KEYUNAUTHORIZED:
- case DNS_R_MUSTBESECURE:
- case DNS_R_COVERINGNSEC:
- case DNS_R_NOTAUTHORITATIVE:
- case DNS_R_NOVALIDKEY:
- case DNS_R_NOVALIDDS:
- case DNS_R_NOVALIDSIG:
- error = EAI_INSECUREDATA;
- break;
- default:
- error = EAI_FAIL;
- }
- goto done;
- }
-
- wantcname = ((resstate->head->ai_flags & AI_CANONNAME) != 0);
-
- /* Parse the response and construct the addrinfo chain */
- for (name = ISC_LIST_HEAD(rev->answerlist); name != NULL;
- name = ISC_LIST_NEXT(name, link))
- {
- isc_result_t result;
- dns_rdataset_t *rdataset;
- char cname[1024];
-
- if (wantcname) {
- isc_buffer_t b;
-
- isc_buffer_init(&b, cname, sizeof(cname));
- result = dns_name_totext(name, true, &b);
- if (result != ISC_R_SUCCESS) {
- error = EAI_FAIL;
- goto done;
- }
- isc_buffer_putuint8(&b, '\0');
- }
-
- for (rdataset = ISC_LIST_HEAD(name->list); rdataset != NULL;
- rdataset = ISC_LIST_NEXT(rdataset, link))
- {
- if (!dns_rdataset_isassociated(rdataset)) {
- continue;
- }
- if (rdataset->type != qtype) {
- continue;
- }
-
- for (result = dns_rdataset_first(rdataset);
- result == ISC_R_SUCCESS;
- result = dns_rdataset_next(rdataset))
- {
- struct addrinfo *ai;
- dns_rdata_t rdata;
- dns_rdata_in_a_t rdata_a;
- dns_rdata_in_aaaa_t rdata_aaaa;
-
- ai = ai_alloc(
- family,
- ((family == AF_INET6)
- ? sizeof(struct sockaddr_in6)
- : sizeof(struct sockaddr_in)));
- if (ai == NULL) {
- error = EAI_MEMORY;
- goto done;
- }
- ai->ai_socktype = resstate->head->ai_socktype;
- ai->ai_next = trans->ai_sentinel.ai_next;
- trans->ai_sentinel.ai_next = ai;
-
- /*
- * Set AF-specific parameters
- * (IPv4/v6 address/port)
- */
- dns_rdata_init(&rdata);
- switch (family) {
- case AF_INET:
- dns_rdataset_current(rdataset, &rdata);
- result = dns_rdata_tostruct(
- &rdata, &rdata_a, NULL);
- RUNTIME_CHECK(result == ISC_R_SUCCESS);
- SIN(ai->ai_addr)->sin_port =
- resstate->head->ai_port;
- memmove(&SIN(ai->ai_addr)->sin_addr,
- &rdata_a.in_addr, 4);
- dns_rdata_freestruct(&rdata_a);
- break;
- case AF_INET6:
- dns_rdataset_current(rdataset, &rdata);
- result = dns_rdata_tostruct(
- &rdata, &rdata_aaaa, NULL);
- RUNTIME_CHECK(result == ISC_R_SUCCESS);
- SIN6(ai->ai_addr)->sin6_port =
- resstate->head->ai_port;
- memmove(&SIN6(ai->ai_addr)->sin6_addr,
- &rdata_aaaa.in6_addr, 16);
- dns_rdata_freestruct(&rdata_aaaa);
- break;
- }
-
- if (wantcname) {
- ai->ai_canonname = strdup(cname);
- if (ai->ai_canonname == NULL) {
- error = EAI_MEMORY;
- goto done;
- }
- }
- }
- }
- }
-
-done:
- dns_client_freeresanswer(resstate->head->dnsclient, &rev->answerlist);
- dns_client_destroyrestrans(&trans->xid);
-
- isc_event_free(&event);
-
- /* Make sure that error == 0 iff we have a non-empty list */
- if (error == 0) {
- if (trans->ai_sentinel.ai_next == NULL) {
- error = EAI_NONAME;
- }
- } else {
- if (trans->ai_sentinel.ai_next != NULL) {
- _freeaddrinfo(trans->ai_sentinel.ai_next);
- trans->ai_sentinel.ai_next = NULL;
- }
- }
- trans->error = error;
-
- /* Check whether we are done */
- if ((resstate->trans4 == NULL || !resstate->trans4->is_inprogress) &&
- (resstate->trans6 == NULL || !resstate->trans6->is_inprogress))
- {
- /*
- * We're done for this state. If there is no other outstanding
- * state, we can exit.
- */
- resstate->head->activestates--;
- if (resstate->head->activestates == 0) {
- isc_app_ctxsuspend(resstate->head->actx);
- return;
- }
-
- /*
- * There are outstanding states, but if we are at the head
- * of the state list (i.e., at the highest search priority)
- * and have any answer, we can stop now by canceling the
- * others.
- */
- LOCK(&resstate->head->list_lock);
- if (resstate == ISC_LIST_HEAD(resstate->head->resstates)) {
- if ((resstate->trans4 != NULL &&
- resstate->trans4->ai_sentinel.ai_next != NULL) ||
- (resstate->trans6 != NULL &&
- resstate->trans6->ai_sentinel.ai_next != NULL))
- {
- gai_resstate_t *rest;
-
- for (rest = ISC_LIST_NEXT(resstate, link);
- rest != NULL;
- rest = ISC_LIST_NEXT(rest, link))
- {
- if (rest->trans4 != NULL &&
- rest->trans4->xid != NULL) {
- dns_client_cancelresolve(
- rest->trans4->xid);
- }
- if (rest->trans6 != NULL &&
- rest->trans6->xid != NULL) {
- dns_client_cancelresolve(
- rest->trans6->xid);
- }
- }
- } else {
- /*
- * This search fails, so we move to the tail
- * of the list so that the next entry will
- * have the highest priority.
- */
- ISC_LIST_UNLINK(resstate->head->resstates,
- resstate, link);
- ISC_LIST_APPEND(resstate->head->resstates,
- resstate, link);
- }
- }
- UNLOCK(&resstate->head->list_lock);
- }
-}
-
-static int
-resolve_name(int family, const char *hostname, int flags, struct addrinfo **aip,
- int socktype, int port) {
- isc_result_t result;
- irs_context_t *irsctx;
- irs_resconf_t *conf;
- isc_mem_t *mctx;
- isc_appctx_t *actx;
- isc_task_t *task;
- int terror = 0;
- int error = 0;
- dns_client_t *client;
- gai_resstate_t *resstate;
- gai_statehead_t head;
- bool all_fail = true;
-
- /* get IRS context and the associated parameters */
- irsctx = NULL;
- result = irs_context_get(&irsctx);
- if (result != ISC_R_SUCCESS) {
- return (EAI_FAIL);
- }
- actx = irs_context_getappctx(irsctx);
-
- mctx = irs_context_getmctx(irsctx);
- task = irs_context_gettask(irsctx);
- conf = irs_context_getresconf(irsctx);
- client = irs_context_getdnsclient(irsctx);
-
- /* construct resolution states */
- head.activestates = 0;
- head.ai_family = family;
- head.ai_socktype = socktype;
- head.ai_flags = flags;
- head.ai_port = port;
- head.actx = actx;
- head.dnsclient = client;
- isc_mutex_init(&head.list_lock);
-
- ISC_LIST_INIT(head.resstates);
- result = make_resstates(mctx, hostname, &head, conf);
- if (result != ISC_R_SUCCESS) {
- isc_mutex_destroy(&head.list_lock);
- return (EAI_FAIL);
- }
-
- LOCK(&head.list_lock);
- for (resstate = ISC_LIST_HEAD(head.resstates); resstate != NULL;
- resstate = ISC_LIST_NEXT(resstate, link))
- {
- if (resstate->trans4 != NULL) {
- result = dns_client_startresolve(
- client, resstate->qname, dns_rdataclass_in,
- dns_rdatatype_a, 0, task, process_answer,
- resstate->trans4, &resstate->trans4->xid);
- if (result == ISC_R_SUCCESS) {
- resstate->trans4->is_inprogress = true;
- all_fail = false;
- } else {
- resstate->trans4->is_inprogress = false;
- }
- }
- if (resstate->trans6 != NULL) {
- result = dns_client_startresolve(
- client, resstate->qname, dns_rdataclass_in,
- dns_rdatatype_aaaa, 0, task, process_answer,
- resstate->trans6, &resstate->trans6->xid);
- if (result == ISC_R_SUCCESS) {
- resstate->trans6->is_inprogress = true;
- all_fail = false;
- } else {
- resstate->trans6->is_inprogress = false;
- }
- }
- }
- UNLOCK(&head.list_lock);
-
- if (!all_fail) {
- /* Start all the events */
- isc_app_ctxrun(actx);
- } else {
- error = EAI_FAIL;
- }
-
- /* Cleanup */
- while ((resstate = ISC_LIST_HEAD(head.resstates)) != NULL) {
- int terror4 = 0, terror6 = 0;
-
- ISC_LIST_UNLINK(head.resstates, resstate, link);
-
- if (*aip == NULL) {
- struct addrinfo *sentinel4 = NULL;
- struct addrinfo *sentinel6 = NULL;
-
- if (resstate->trans4 != NULL) {
- sentinel4 =
- resstate->trans4->ai_sentinel.ai_next;
- resstate->trans4->ai_sentinel.ai_next = NULL;
- }
- if (resstate->trans6 != NULL) {
- sentinel6 =
- resstate->trans6->ai_sentinel.ai_next;
- resstate->trans6->ai_sentinel.ai_next = NULL;
- }
- *aip = ai_concat(sentinel4, sentinel6);
- }
-
- if (resstate->trans4 != NULL) {
- INSIST(resstate->trans4->xid == NULL);
- terror4 = resstate->trans4->error;
- isc_mem_put(mctx, resstate->trans4,
- sizeof(*resstate->trans4));
- }
- if (resstate->trans6 != NULL) {
- INSIST(resstate->trans6->xid == NULL);
- terror6 = resstate->trans6->error;
- isc_mem_put(mctx, resstate->trans6,
- sizeof(*resstate->trans6));
- }
-
- /*
- * If the entire lookup fails, we need to choose an appropriate
- * error code from individual codes. We'll try to provide as
- * specific a code as possible. In general, we are going to
- * find an error code other than EAI_NONAME (which is too
- * generic and may actually not be problematic in some cases).
- * EAI_NONAME will be set below if no better code is found.
- */
- if (terror == 0 || terror == EAI_NONAME) {
- if (terror4 != 0 && terror4 != EAI_NONAME) {
- terror = terror4;
- } else if (terror6 != 0 && terror6 != EAI_NONAME) {
- terror = terror6;
- }
- }
-
- isc_mem_put(mctx, resstate, sizeof(*resstate));
- }
-
- if (*aip == NULL) {
- error = terror;
- if (error == 0) {
- error = EAI_NONAME;
- }
- }
-
-#if 1 /* XXX: enabled for finding leaks. should be cleaned up later. */
- isc_app_ctxfinish(actx);
- irs_context_destroy(&irsctx);
-#endif /* if 1 */
-
- isc_mutex_destroy(&head.list_lock);
- return (error);
-}
-
-static void
-set_order(int family,
- int (**net_order)(const char *, int, struct addrinfo **, int, int)) {
- char *order, *tok, *last;
- int found;
-
- if (family) {
- switch (family) {
- case AF_INET:
- *net_order++ = add_ipv4;
- break;
- case AF_INET6:
- *net_order++ = add_ipv6;
- break;
- }
- } else {
- order = getenv("NET_ORDER");
- found = 0;
- if (order != NULL) {
- last = NULL;
- for (tok = strtok_r(order, ":", &last); tok;
- tok = strtok_r(NULL, ":", &last)) {
- if (strcasecmp(tok, "inet6") == 0) {
- if ((found & FOUND_IPV6) == 0) {
- *net_order++ = add_ipv6;
- }
- found |= FOUND_IPV6;
- } else if (strcasecmp(tok, "inet") == 0 ||
- strcasecmp(tok, "inet4") == 0) {
- if ((found & FOUND_IPV4) == 0) {
- *net_order++ = add_ipv4;
- }
- found |= FOUND_IPV4;
- }
- }
- }
-
- /*
- * Add in anything that we didn't find.
- */
- if ((found & FOUND_IPV4) == 0) {
- *net_order++ = add_ipv4;
- }
- if ((found & FOUND_IPV6) == 0) {
- *net_order++ = add_ipv6;
- }
- }
- *net_order = NULL;
- return;
-}
-
-static char v4_loop[4] = { 127, 0, 0, 1 };
-
-static int
-add_ipv4(const char *hostname, int flags, struct addrinfo **aip, int socktype,
- int port) {
- struct addrinfo *ai;
-
- UNUSED(hostname);
- UNUSED(flags);
-
- ai = ai_clone(*aip, AF_INET); /* don't use ai_clone() */
- if (ai == NULL) {
- return (EAI_MEMORY);
- }
-
- *aip = ai;
- ai->ai_socktype = socktype;
- SIN(ai->ai_addr)->sin_port = port;
- memmove(&SIN(ai->ai_addr)->sin_addr, v4_loop, 4);
-
- return (0);
-}
-
-static char v6_loop[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 };
-
-static int
-add_ipv6(const char *hostname, int flags, struct addrinfo **aip, int socktype,
- int port) {
- struct addrinfo *ai;
-
- UNUSED(hostname);
- UNUSED(flags);
-
- ai = ai_clone(*aip, AF_INET6); /* don't use ai_clone() */
- if (ai == NULL) {
- return (EAI_MEMORY);
- }
-
- *aip = ai;
- ai->ai_socktype = socktype;
- SIN6(ai->ai_addr)->sin6_port = port;
- memmove(&SIN6(ai->ai_addr)->sin6_addr, v6_loop, 16);
-
- return (0);
-}
-
-/*% Free address info. */
-void
-freeaddrinfo(struct addrinfo *ai) {
- _freeaddrinfo(ai);
-}
-
-static void
-_freeaddrinfo(struct addrinfo *ai) {
- struct addrinfo *ai_next;
-
- while (ai != NULL) {
- ai_next = ai->ai_next;
- if (ai->ai_addr != NULL) {
- free(ai->ai_addr);
- }
- if (ai->ai_canonname) {
- free(ai->ai_canonname);
- }
- free(ai);
- ai = ai_next;
- }
-}
-
-#ifdef AF_LOCAL
-static int
-get_local(const char *name, int socktype, struct addrinfo **res) {
- struct addrinfo *ai;
- struct sockaddr_un *slocal;
-
- if (socktype == 0) {
- return (EAI_SOCKTYPE);
- }
-
- ai = ai_alloc(AF_LOCAL, sizeof(*slocal));
- if (ai == NULL) {
- return (EAI_MEMORY);
- }
-
- slocal = SLOCAL(ai->ai_addr);
- strlcpy(slocal->sun_path, name, sizeof(slocal->sun_path));
-
- ai->ai_socktype = socktype;
- /*
- * ai->ai_flags, ai->ai_protocol, ai->ai_canonname,
- * and ai->ai_next were initialized to zero.
- */
-
- *res = ai;
- return (0);
-}
-#endif /* ifdef AF_LOCAL */
-
-/*!
- * Allocate an addrinfo structure, and a sockaddr structure
- * of the specified length. We initialize:
- * ai_addrlen
- * ai_family
- * ai_addr
- * ai_addr->sa_family
- * ai_addr->sa_len (IRS_PLATFORM_HAVESALEN)
- * and everything else is initialized to zero.
- */
-static struct addrinfo *
-ai_alloc(int family, int addrlen) {
- struct addrinfo *ai;
-
- ai = (struct addrinfo *)calloc(1, sizeof(*ai));
- if (ai == NULL) {
- return (NULL);
- }
-
- ai->ai_addr = SA(calloc(1, addrlen));
- if (ai->ai_addr == NULL) {
- free(ai);
- return (NULL);
- }
- ai->ai_addrlen = addrlen;
- ai->ai_family = family;
- ai->ai_addr->sa_family = family;
-#ifdef IRS_PLATFORM_HAVESALEN
- ai->ai_addr->sa_len = addrlen;
-#endif /* ifdef IRS_PLATFORM_HAVESALEN */
- return (ai);
-}
-
-static struct addrinfo *
-ai_clone(struct addrinfo *oai, int family) {
- struct addrinfo *ai;
-
- ai = ai_alloc(family,
- ((family == AF_INET6) ? sizeof(struct sockaddr_in6)
- : sizeof(struct sockaddr_in)));
-
- if (ai == NULL) {
- return (NULL);
- }
- if (oai == NULL) {
- return (ai);
- }
-
- ai->ai_flags = oai->ai_flags;
- ai->ai_socktype = oai->ai_socktype;
- ai->ai_protocol = oai->ai_protocol;
- ai->ai_canonname = NULL;
- ai->ai_next = oai;
- return (ai);
-}
-
-static struct addrinfo *
-ai_reverse(struct addrinfo *oai) {
- struct addrinfo *nai, *tai;
-
- nai = NULL;
-
- while (oai != NULL) {
- /*
- * Grab one off the old list.
- */
- tai = oai;
- oai = oai->ai_next;
- /*
- * Put it on the front of the new list.
- */
- tai->ai_next = nai;
- nai = tai;
- }
- return (nai);
-}
-
-static struct addrinfo *
-ai_concat(struct addrinfo *ai1, struct addrinfo *ai2) {
- struct addrinfo *ai_tmp;
-
- if (ai1 == NULL) {
- return (ai2);
- } else if (ai2 == NULL) {
- return (ai1);
- }
-
- for (ai_tmp = ai1; ai_tmp != NULL && ai_tmp->ai_next != NULL;
- ai_tmp = ai_tmp->ai_next)
- {
- }
-
- ai_tmp->ai_next = ai2;
-
- return (ai1);
-}
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*! \file */
-
-/*
- * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
- * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
- */
-
-/**
- * getnameinfo() returns the hostname for the struct sockaddr sa which is
- * salen bytes long. The hostname is of length hostlen and is returned via
- * *host. The maximum length of the hostname is 1025 bytes: #NI_MAXHOST.
- *
- * The name of the service associated with the port number in sa is
- * returned in *serv. It is servlen bytes long. The maximum length of the
- * service name is #NI_MAXSERV - 32 bytes.
- *
- * The flags argument sets the following bits:
- *
- * \li #NI_NOFQDN:
- * A fully qualified domain name is not required for local hosts.
- * The local part of the fully qualified domain name is returned
- * instead.
- *
- * \li #NI_NUMERICHOST
- * Return the address in numeric form, as if calling inet_ntop(),
- * instead of a host name.
- *
- * \li #NI_NAMEREQD
- * A name is required. If the hostname cannot be found in the DNS
- * and this flag is set, a non-zero error code is returned. If the
- * hostname is not found and the flag is not set, the address is
- * returned in numeric form.
- *
- * \li #NI_NUMERICSERV
- * The service name is returned as a digit string representing the
- * port number.
- *
- * \li #NI_DGRAM
- * Specifies that the service being looked up is a datagram
- * service, and causes getservbyport() to be called with a second
- * argument of "udp" instead of its default of "tcp". This is
- * required for the few ports (512-514) that have different
- * services for UDP and TCP.
- *
- * \section getnameinfo_return Return Values
- *
- * getnameinfo() returns 0 on success or a non-zero error code if
- * an error occurs.
- *
- * \section getname_see See Also
- *
- * RFC3493, getservbyport(),
- * getnamebyaddr(). inet_ntop().
- */
-
-#include <stdbool.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <isc/netaddr.h>
-#include <isc/print.h>
-#include <isc/sockaddr.h>
-#include <isc/string.h>
-#include <isc/util.h>
-
-#include <dns/byaddr.h>
-#include <dns/client.h>
-#include <dns/fixedname.h>
-#include <dns/name.h>
-#include <dns/rdata.h>
-#include <dns/rdataset.h>
-#include <dns/rdatastruct.h>
-#include <dns/result.h>
-
-#include <irs/context.h>
-#include <irs/netdb.h>
-
-#define SUCCESS 0
-
-/*% afd structure definition */
-static struct afd {
- int a_af;
- size_t a_addrlen;
- size_t a_socklen;
-} afdl[] = {
- /*!
- * First entry is linked last...
- */
- { AF_INET, sizeof(struct in_addr), sizeof(struct sockaddr_in) },
- { AF_INET6, sizeof(struct in6_addr), sizeof(struct sockaddr_in6) },
- { 0, 0, 0 },
-};
-
-/*!
- * The test against 0 is there to keep the Solaris compiler
- * from complaining about "end-of-loop code not reached".
- */
-#define ERR(code) \
- do { \
- result = (code); \
- if (result != 0) \
- goto cleanup; \
- } while (0)
-
-#ifdef _WIN32
-int
-getnameinfo(const struct sockaddr *sa, socklen_t salen, char *host,
- DWORD hostlen, char *serv, DWORD servlen, int flags) {
-#else
-int
-getnameinfo(const struct sockaddr *sa, socklen_t salen, char *host,
- socklen_t hostlen, char *serv, socklen_t servlen, int flags) {
-#endif
- struct afd *afd = NULL;
- struct servent *sp;
- unsigned short port = 0;
-#ifdef IRS_PLATFORM_HAVESALEN
- size_t len;
-#endif /* ifdef IRS_PLATFORM_HAVESALEN */
- int family, i;
- const void *addr = NULL;
- char *p;
-#if 0
- unsigned long v4a;
- unsigned char pfx;
-#endif /* if 0 */
- char numserv[sizeof("65000")];
- char numaddr[sizeof("abcd:abcd:abcd:abcd:abcd:abcd:255.255.255.255") +
- 1 + sizeof("4294967295")];
- const char *proto;
- int result = SUCCESS;
-
- if (sa == NULL) {
- ERR(EAI_FAIL);
- }
-
-#ifdef IRS_PLATFORM_HAVESALEN
- len = sa->sa_len;
- if (len != salen) {
- ERR(EAI_FAIL);
- }
-#endif /* ifdef IRS_PLATFORM_HAVESALEN */
-
- family = sa->sa_family;
- for (i = 0; afdl[i].a_af; i++) {
- if (afdl[i].a_af == family) {
- {
- afd = &afdl[i];
- goto found;
- }
- }
- }
- ERR(EAI_FAMILY);
-
-found:
- if (salen != afd->a_socklen) {
- ERR(EAI_FAIL);
- }
-
- switch (family) {
- case AF_INET:
- port = ((const struct sockaddr_in *)sa)->sin_port;
- addr = &((const struct sockaddr_in *)sa)->sin_addr.s_addr;
- break;
-
- case AF_INET6:
- port = ((const struct sockaddr_in6 *)sa)->sin6_port;
- addr = ((const struct sockaddr_in6 *)sa)->sin6_addr.s6_addr;
- break;
-
- default:
- INSIST(0);
- ISC_UNREACHABLE();
- }
- proto = ((flags & NI_DGRAM) != 0) ? "udp" : "tcp";
-
- if (serv == NULL || servlen == 0U) {
- /*
- * Caller does not want service.
- */
- } else if ((flags & NI_NUMERICSERV) != 0 ||
- (sp = getservbyport(port, proto)) == NULL)
- {
- snprintf(numserv, sizeof(numserv), "%d", ntohs(port));
- if ((strlen(numserv) + 1) > servlen) {
- ERR(EAI_OVERFLOW);
- }
- strlcpy(serv, numserv, servlen);
- } else {
- if ((strlen(sp->s_name) + 1) > servlen) {
- ERR(EAI_OVERFLOW);
- }
- strlcpy(serv, sp->s_name, servlen);
- }
-
-#if 0
- switch (sa->sa_family) {
- case AF_INET:
- v4a = ((struct sockaddr_in *)sa)->sin_addr.s_addr;
- if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a)) {
- flags |= NI_NUMERICHOST;
- }
- v4a >>= IN_CLASSA_NSHIFT;
- if (v4a == 0 || v4a == IN_LOOPBACKNET) {
- flags |= NI_NUMERICHOST;
- }
- break;
-
- case AF_INET6:
- pfx = ((struct sockaddr_in6 *)sa)->sin6_addr.s6_addr[0];
- if (pfx == 0 || pfx == 0xfe || pfx == 0xff) {
- flags |= NI_NUMERICHOST;
- }
- break;
- }
-#endif /* if 0 */
-
- if (host == NULL || hostlen == 0U) {
- /*
- * do nothing in this case.
- * in case you are wondering if "&&" is more correct than
- * "||" here: RFC3493 says that host == NULL or hostlen == 0
- * means that the caller does not want the result.
- */
- } else if ((flags & NI_NUMERICHOST) != 0) {
- if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr)) ==
- NULL) {
- ERR(EAI_SYSTEM);
- }
-#if defined(IRS_HAVE_SIN6_SCOPE_ID)
- if (afd->a_af == AF_INET6 &&
- ((const struct sockaddr_in6 *)sa)->sin6_scope_id) {
- char *p = numaddr + strlen(numaddr);
- const char *stringscope = NULL;
-#ifdef VENDOR_SPECIFIC
- /*
- * Vendors may want to add support for
- * non-numeric scope identifier.
- */
- stringscope = foo;
-#endif /* ifdef VENDOR_SPECIFIC */
- if (stringscope == NULL) {
- snprintf(p, sizeof(numaddr) - (p - numaddr),
- "%%%u",
- ((const struct sockaddr_in6 *)sa)
- ->sin6_scope_id);
- } else {
- snprintf(p, sizeof(numaddr) - (p - numaddr),
- "%%%s", stringscope);
- }
- }
-#endif /* if defined(IRS_HAVE_SIN6_SCOPE_ID) */
- if (strlen(numaddr) + 1 > hostlen) {
- ERR(EAI_OVERFLOW);
- }
- strlcpy(host, numaddr, hostlen);
- } else {
- isc_netaddr_t netaddr;
- dns_fixedname_t ptrfname;
- dns_name_t *ptrname;
- irs_context_t *irsctx = NULL;
- dns_client_t *client;
- bool found = false;
- dns_namelist_t answerlist;
- dns_rdataset_t *rdataset;
- isc_region_t hostregion;
- char hoststr[1024]; /* is this enough? */
- isc_result_t iresult;
-
- /* Get IRS context and the associated DNS client object */
- iresult = irs_context_get(&irsctx);
- if (iresult != ISC_R_SUCCESS) {
- ERR(EAI_FAIL);
- }
- client = irs_context_getdnsclient(irsctx);
-
- /* Make query name */
- isc_netaddr_fromsockaddr(&netaddr, (const isc_sockaddr_t *)sa);
- ptrname = dns_fixedname_initname(&ptrfname);
- iresult = dns_byaddr_createptrname(&netaddr, 0, ptrname);
- if (iresult != ISC_R_SUCCESS) {
- ERR(EAI_FAIL);
- }
-
- /* Get the PTR RRset */
- ISC_LIST_INIT(answerlist);
- iresult = dns_client_resolve(
- client, ptrname, dns_rdataclass_in, dns_rdatatype_ptr,
- DNS_CLIENTRESOPT_ALLOWRUN, &answerlist);
- switch (iresult) {
- case ISC_R_SUCCESS:
- /*
- * a 'non-existent' error is not necessarily fatal for
- * getnameinfo().
- */
- case DNS_R_NCACHENXDOMAIN:
- case DNS_R_NCACHENXRRSET:
- break;
- case DNS_R_SIGINVALID:
- case DNS_R_SIGEXPIRED:
- case DNS_R_SIGFUTURE:
- case DNS_R_KEYUNAUTHORIZED:
- case DNS_R_MUSTBESECURE:
- case DNS_R_COVERINGNSEC:
- case DNS_R_NOTAUTHORITATIVE:
- case DNS_R_NOVALIDKEY:
- case DNS_R_NOVALIDDS:
- case DNS_R_NOVALIDSIG:
- /*
- * Don't use ERR as GCC 7 wants to raise a
- * warning with ERR about possible falling
- * through which is impossible.
- */
- result = EAI_INSECUREDATA;
- goto cleanup;
- default:
- ERR(EAI_FAIL);
- }
-
- /* Parse the answer for the hostname */
- for (ptrname = ISC_LIST_HEAD(answerlist); ptrname != NULL;
- ptrname = ISC_LIST_NEXT(ptrname, link))
- {
- for (rdataset = ISC_LIST_HEAD(ptrname->list);
- rdataset != NULL;
- rdataset = ISC_LIST_NEXT(rdataset, link))
- {
- if (!dns_rdataset_isassociated(rdataset)) {
- continue;
- }
- if (rdataset->type != dns_rdatatype_ptr) {
- continue;
- }
-
- for (iresult = dns_rdataset_first(rdataset);
- iresult == ISC_R_SUCCESS;
- iresult = dns_rdataset_next(rdataset))
- {
- dns_rdata_t rdata;
- dns_rdata_ptr_t rdata_ptr;
- isc_buffer_t b;
-
- dns_rdata_init(&rdata);
- dns_rdataset_current(rdataset, &rdata);
- dns_rdata_tostruct(&rdata, &rdata_ptr,
- NULL);
-
- isc_buffer_init(&b, hoststr,
- sizeof(hoststr));
- iresult = dns_name_totext(
- &rdata_ptr.ptr, true, &b);
- dns_rdata_freestruct(&rdata_ptr);
- if (iresult == ISC_R_SUCCESS) {
- /*
- * We ignore the rest of the
- * answer. After all,
- * getnameinfo() can return
- * at most one hostname.
- */
- found = true;
- isc_buffer_usedregion(
- &b, &hostregion);
- goto ptrfound;
- }
- }
- }
- }
- ptrfound:
- dns_client_freeresanswer(client, &answerlist);
- if (found) {
- if ((flags & NI_NOFQDN) != 0) {
- p = strchr(hoststr, '.');
- if (p) {
- *p = '\0';
- }
- }
- if (hostregion.length + 1 > hostlen) {
- ERR(EAI_OVERFLOW);
- }
- snprintf(host, hostlen, "%.*s", (int)hostregion.length,
- (char *)hostregion.base);
- } else {
- if ((flags & NI_NAMEREQD) != 0) {
- ERR(EAI_NONAME);
- }
- if (inet_ntop(afd->a_af, addr, numaddr,
- sizeof(numaddr)) == NULL) {
- ERR(EAI_SYSTEM);
- }
- if ((strlen(numaddr) + 1) > hostlen) {
- ERR(EAI_OVERFLOW);
- }
- strlcpy(host, numaddr, hostlen);
- }
- }
- result = SUCCESS;
-
-cleanup:
- return (result);
-}
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-#ifndef IRS_CONTEXT_H
-#define IRS_CONTEXT_H 1
-
-/*! \file
- *
- * \brief
- * The IRS context module provides an abstract interface to the DNS library
- * with an application. An IRS context object initializes and holds various
- * resources used in the DNS library.
- */
-
-#include <dns/types.h>
-
-#include <irs/types.h>
-
-ISC_LANG_BEGINDECLS
-
-isc_result_t
-irs_context_create(irs_context_t **contextp);
-/*%<
- * Create an IRS context. It internally initializes the ISC and DNS libraries
- * (if not yet), creates a DNS client object and initializes the client using
- * the configuration files parsed via the 'resconf' and 'dnsconf' IRS modules.
- * Some of the internally initialized objects can be used by the application
- * via irs_context_getxxx() functions (see below).
- *
- * Requires:
- *
- *\li contextp != NULL && *contextp == NULL.
- */
-
-isc_result_t
-irs_context_get(irs_context_t **contextp);
-/*%<
- * Return an IRS context for the calling thread. If no IRS context is
- * associated to the thread, this function creates a new one by calling
- * irs_context_create(), and associates it with the thread as a thread specific
- * data value. This function is provided for standard libraries that are
- * expected to be thread-safe but do not accept an appropriate IRS context
- * as a library parameter, e.g., getaddrinfo().
- *
- * Requires:
- *
- *\li contextp != NULL && *contextp == NULL.
- */
-
-void
-irs_context_destroy(irs_context_t **contextp);
-/*%<
- * Destroy an IRS context.
- *
- * Requires:
- *
- *\li '*contextp' is a valid IRS context.
- *
- * Ensures:
- *\li '*contextp' == NULL.
- */
-
-isc_mem_t *
-irs_context_getmctx(irs_context_t *context);
-/*%<
- * Return the memory context held in the context.
- *
- * Requires:
- *
- *\li 'context' is a valid IRS context.
- */
-
-isc_appctx_t *
-irs_context_getappctx(irs_context_t *context);
-/*%<
- * Return the application context held in the context.
- *
- * Requires:
- *
- *\li 'context' is a valid IRS context.
- */
-
-isc_taskmgr_t *
-irs_context_gettaskmgr(irs_context_t *context);
-/*%<
- * Return the task manager held in the context.
- *
- * Requires:
- *
- *\li 'context' is a valid IRS context.
- */
-
-isc_timermgr_t *
-irs_context_gettimermgr(irs_context_t *context);
-/*%<
- * Return the timer manager held in the context.
- *
- * Requires:
- *
- *\li 'context' is a valid IRS context.
- */
-
-isc_task_t *
-irs_context_gettask(irs_context_t *context);
-/*%<
- * Return the task object held in the context.
- *
- * Requires:
- *
- *\li 'context' is a valid IRS context.
- */
-
-dns_client_t *
-irs_context_getdnsclient(irs_context_t *context);
-/*%<
- * Return the DNS client object held in the context.
- *
- * Requires:
- *
- *\li 'context' is a valid IRS context.
- */
-
-irs_resconf_t *
-irs_context_getresconf(irs_context_t *context);
-/*%<
- * Return the resolver configuration object held in the context.
- *
- * Requires:
- *
- *\li 'context' is a valid IRS context.
- */
-
-irs_dnsconf_t *
-irs_context_getdnsconf(irs_context_t *context);
-/*%<
- * Return the advanced DNS configuration object held in the context.
- *
- * Requires:
- *
- *\li 'context' is a valid IRS context.
- */
-
-ISC_LANG_ENDDECLS
-
-#endif /* IRS_CONTEXT_H */
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-#ifndef IRS_DNSCONF_H
-#define IRS_DNSCONF_H 1
-
-/*! \file
- *
- * \brief
- * The IRS dnsconf module parses an "advanced" configuration file related to
- * the DNS library, such as trust anchors for DNSSEC validation, and creates
- * the corresponding configuration objects for the DNS library modules.
- *
- * Notes:
- * This module is very experimental and the configuration syntax or library
- * interfaces may change in future versions. Currently, only static
- * key configuration is supported; "trusted-keys" and "trust-anchors"/
- * "managed-keys" statements will be parsed exactly as they are in
- * named.conf, except that "trust-anchors" and "managed-keys" entries will
- * be treated as if they were configured with "static-key", even if they
- * were actually configured with "initial-key".
- */
-
-#include <irs/types.h>
-
-/*%
- * A compound structure storing DNS key information mainly for DNSSEC
- * validation. A dns_key_t object will be created using the 'keyname' and
- * 'keydatabuf' members with the dst_key_fromdns() function.
- */
-typedef struct irs_dnsconf_dnskey {
- dns_name_t * keyname;
- isc_buffer_t *keydatabuf;
- ISC_LINK(struct irs_dnsconf_dnskey) link;
-} irs_dnsconf_dnskey_t;
-
-typedef ISC_LIST(irs_dnsconf_dnskey_t) irs_dnsconf_dnskeylist_t;
-
-ISC_LANG_BEGINDECLS
-
-isc_result_t
-irs_dnsconf_load(isc_mem_t *mctx, const char *filename, irs_dnsconf_t **confp);
-/*%<
- * Load the "advanced" DNS configuration file 'filename' in the "dns.conf"
- * format, and create a new irs_dnsconf_t object from the configuration.
- *
- * Requires:
- *
- *\li 'mctx' is a valid memory context.
- *
- *\li 'filename' != NULL
- *
- *\li 'confp' != NULL && '*confp' == NULL
- */
-
-void
-irs_dnsconf_destroy(irs_dnsconf_t **confp);
-/*%<
- * Destroy the dnsconf object.
- *
- * Requires:
- *
- *\li '*confp' is a valid dnsconf object.
- *
- * Ensures:
- *
- *\li *confp == NULL
- */
-
-irs_dnsconf_dnskeylist_t *
-irs_dnsconf_gettrustedkeys(irs_dnsconf_t *conf);
-/*%<
- * Return a list of key information stored in 'conf'.
- *
- * Requires:
- *
- *\li 'conf' is a valid dnsconf object.
- */
-
-ISC_LANG_ENDDECLS
-
-#endif /* IRS_DNSCONF_H */
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*! \file */
-
-#ifndef IRS_NETDB_H
-#define IRS_NETDB_H 1
-
-#include <netdb.h> /* Contractual provision. */
-#include <stddef.h> /* Required on FreeBSD (and others?) for size_t. */
-
-/*
- * Undefine all #defines we are interested in as <netdb.h> may or may not have
- * defined them.
- */
-
-/*
- * Error return codes from gethostbyname() and gethostbyaddr()
- * (left in extern int h_errno).
- */
-
-#undef NETDB_INTERNAL
-#undef NETDB_SUCCESS
-#undef HOST_NOT_FOUND
-#undef TRY_AGAIN
-#undef NO_RECOVERY
-#undef NO_DATA
-#undef NO_ADDRESS
-
-#define NETDB_INTERNAL -1 /* see errno */
-#define NETDB_SUCCESS 0 /* no problem */
-#define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
-#define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */
-#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
-#define NO_DATA 4 /* Valid name, no data record of requested type */
-#define NO_ADDRESS NO_DATA /* no address, look for MX record */
-
-/*
- * Error return codes from getaddrinfo(). EAI_INSECUREDATA is our own extension
- * and it's very unlikely to be already defined, but undef it just in case; it
- * at least doesn't do any harm.
- */
-
-#undef EAI_ADDRFAMILY
-#undef EAI_AGAIN
-#undef EAI_BADFLAGS
-#undef EAI_FAIL
-#undef EAI_FAMILY
-#undef EAI_MEMORY
-#undef EAI_NODATA
-#undef EAI_NONAME
-#undef EAI_SERVICE
-#undef EAI_SOCKTYPE
-#undef EAI_SYSTEM
-#undef EAI_BADHINTS
-#undef EAI_PROTOCOL
-#undef EAI_OVERFLOW
-#undef EAI_INSECUREDATA
-#undef EAI_MAX
-
-#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
-#define EAI_AGAIN 2 /* temporary failure in name resolution */
-#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
-#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
-#define EAI_FAMILY 5 /* ai_family not supported */
-#define EAI_MEMORY 6 /* memory allocation failure */
-#define EAI_NODATA 7 /* no address associated with hostname */
-#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
-#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
-#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
-#define EAI_SYSTEM 11 /* system error returned in errno */
-#define EAI_BADHINTS 12
-#define EAI_PROTOCOL 13
-#define EAI_OVERFLOW 14
-#define EAI_INSECUREDATA 15
-#define EAI_MAX 16
-
-/*
- * Flag values for getaddrinfo()
- */
-#undef AI_PASSIVE
-#undef AI_CANONNAME
-#undef AI_NUMERICHOST
-
-#define AI_PASSIVE 0x00000001
-#define AI_CANONNAME 0x00000002
-#define AI_NUMERICHOST 0x00000004
-
-/*
- * Flag values for getipnodebyname()
- */
-#undef AI_V4MAPPED
-#undef AI_ALL
-#undef AI_ADDRCONFIG
-#undef AI_DEFAULT
-
-#define AI_V4MAPPED 0x00000008
-#define AI_ALL 0x00000010
-#define AI_ADDRCONFIG 0x00000020
-#define AI_DEFAULT (AI_V4MAPPED | AI_ADDRCONFIG)
-
-/*
- * Constants for getnameinfo()
- */
-#undef NI_MAXHOST
-#undef NI_MAXSERV
-
-#define NI_MAXHOST 1025
-#define NI_MAXSERV 32
-
-/*
- * Flag values for getnameinfo()
- */
-#undef NI_NOFQDN
-#undef NI_NUMERICHOST
-#undef NI_NAMEREQD
-#undef NI_NUMERICSERV
-#undef NI_DGRAM
-#undef NI_NUMERICSCOPE
-
-#define NI_NOFQDN 0x00000001
-#define NI_NUMERICHOST 0x00000002
-#define NI_NAMEREQD 0x00000004
-#define NI_NUMERICSERV 0x00000008
-#define NI_DGRAM 0x00000010
-
-/*
- * Define to map into irs_ namespace.
- */
-
-#define IRS_NAMESPACE
-
-#ifdef IRS_NAMESPACE
-
-/*
- * Use our versions not the ones from the C library.
- */
-
-#ifdef getnameinfo
-#undef getnameinfo
-#endif
-#define getnameinfo irs_getnameinfo
-
-#ifdef getaddrinfo
-#undef getaddrinfo
-#endif
-#define getaddrinfo irs_getaddrinfo
-
-#ifdef freeaddrinfo
-#undef freeaddrinfo
-#endif
-#define freeaddrinfo irs_freeaddrinfo
-
-#ifdef gai_strerror
-#undef gai_strerror
-#endif
-#define gai_strerror irs_gai_strerror
-
-int
-getaddrinfo(const char *hostname, const char *servname,
- const struct addrinfo *hints, struct addrinfo **res);
-
-int
-getnameinfo(const struct sockaddr *sa, socklen_t salen, char *host,
- socklen_t hostlen, char *serv, socklen_t servlen, int flags);
-
-void
-freeaddrinfo(struct addrinfo *ai);
-
-const char *
-gai_strerror(int ecode);
-
-#endif /* IRS_NAMESPACE */
-
-/*
- * Tell Emacs to use C mode on this file.
- * Local variables:
- * mode: c
- * End:
- */
-
-#endif /* IRS_NETDB_H */
* information regarding copyright ownership.
*/
-#ifndef IRS_RESCONF_H
-#define IRS_RESCONF_H 1
+#pragma once
+
+#include <isc/lang.h>
+#include <isc/list.h>
+#include <isc/types.h>
/*! \file
*
* modules.
*/
-#include <irs/types.h>
+/*%< resolv.conf configuration information */
+typedef struct irs_resconf irs_resconf_t;
/*%
* A DNS search list specified in the 'domain' or 'search' statements
*/
ISC_LANG_ENDDECLS
-
-#endif /* IRS_RESCONF_H */
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-#ifndef IRS_TYPES_H
-#define IRS_TYPES_H 1
-
-/* Core Types. Alphabetized by defined type. */
-
-/*%< per-thread IRS context */
-typedef struct irs_context irs_context_t;
-/*%< resolv.conf configuration information */
-typedef struct irs_resconf irs_resconf_t;
-/*%< advanced DNS-related configuration information */
-typedef struct irs_dnsconf irs_dnsconf_t;
-
-#endif /* IRS_TYPES_H */
#include <isc/sockaddr.h>
#include <isc/util.h>
-#include <irs/netdb.h>
#include <irs/resconf.h>
#define IRS_RESCONF_MAGIC ISC_MAGIC('R', 'E', 'S', 'c')
#include <isc/util.h>
#include <irs/resconf.h>
-#include <irs/types.h>
static isc_mem_t *mctx = NULL;
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*! \file */
-
-#ifndef IRS_NETDB_H
-#define IRS_NETDB_H 1
-
-#include <stddef.h> /* Required on FreeBSD (and others?) for size_t. */
-
-/*
- * Define if <netdb.h> does not declare struct addrinfo.
- */
-#undef ISC_IRS_NEEDADDRINFO
-
-#ifdef ISC_IRS_NEEDADDRINFO
-struct addrinfo {
- int ai_flags; /* AI_PASSIVE, AI_CANONNAME */
- int ai_family; /* PF_xxx */
- int ai_socktype; /* SOCK_xxx */
- int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and
- * IPv6 */
- size_t ai_addrlen; /* Length of ai_addr */
- char * ai_canonname; /* Canonical name for hostname */
- struct sockaddr *ai_addr; /* Binary address */
- struct addrinfo *ai_next; /* Next structure in linked list */
-};
-#endif /* ifdef ISC_IRS_NEEDADDRINFO */
-
-/*
- * Undefine all #defines we are interested in as <netdb.h> may or may not have
- * defined them.
- */
-
-/*
- * Error return codes from gethostbyname() and gethostbyaddr()
- * (left in extern int h_errno).
- */
-
-#undef NETDB_INTERNAL
-#undef NETDB_SUCCESS
-#undef HOST_NOT_FOUND
-#undef TRY_AGAIN
-#undef NO_RECOVERY
-#undef NO_DATA
-#undef NO_ADDRESS
-
-#define NETDB_INTERNAL -1 /* see errno */
-#define NETDB_SUCCESS 0 /* no problem */
-#define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
-#define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */
-#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
-#define NO_DATA 4 /* Valid name, no data record of requested type */
-#define NO_ADDRESS NO_DATA /* no address, look for MX record */
-
-/*
- * Error return codes from getaddrinfo(). EAI_INSECUREDATA is our own extension
- * and it's very unlikely to be already defined, but undef it just in case; it
- * at least doesn't do any harm.
- */
-
-#undef EAI_ADDRFAMILY
-#undef EAI_AGAIN
-#undef EAI_BADFLAGS
-#undef EAI_FAIL
-#undef EAI_FAMILY
-#undef EAI_MEMORY
-#undef EAI_NODATA
-#undef EAI_NONAME
-#undef EAI_SERVICE
-#undef EAI_SOCKTYPE
-#undef EAI_SYSTEM
-#undef EAI_BADHINTS
-#undef EAI_PROTOCOL
-#undef EAI_OVERFLOW
-#undef EAI_INSECUREDATA
-#undef EAI_MAX
-
-#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
-#define EAI_AGAIN 2 /* temporary failure in name resolution */
-#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
-#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
-#define EAI_FAMILY 5 /* ai_family not supported */
-#define EAI_MEMORY 6 /* memory allocation failure */
-#define EAI_NODATA 7 /* no address associated with hostname */
-#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
-#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
-#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
-#define EAI_SYSTEM 11 /* system error returned in errno */
-#define EAI_BADHINTS 12
-#define EAI_PROTOCOL 13
-#define EAI_OVERFLOW 14
-#define EAI_INSECUREDATA 15
-#define EAI_MAX 16
-
-/*
- * Flag values for getaddrinfo()
- */
-#undef AI_PASSIVE
-#undef AI_CANONNAME
-#undef AI_NUMERICHOST
-
-#define AI_PASSIVE 0x00000001
-#define AI_CANONNAME 0x00000002
-#define AI_NUMERICHOST 0x00000004
-
-/*
- * Flag values for getipnodebyname()
- */
-#undef AI_V4MAPPED
-#undef AI_ALL
-#undef AI_ADDRCONFIG
-#undef AI_DEFAULT
-
-#define AI_V4MAPPED 0x00000008
-#define AI_ALL 0x00000010
-#define AI_ADDRCONFIG 0x00000020
-#define AI_DEFAULT (AI_V4MAPPED | AI_ADDRCONFIG)
-
-/*
- * Constants for getnameinfo()
- */
-#undef NI_MAXHOST
-#undef NI_MAXSERV
-
-#define NI_MAXHOST 1025
-#define NI_MAXSERV 32
-
-/*
- * Flag values for getnameinfo()
- */
-#undef NI_NOFQDN
-#undef NI_NUMERICHOST
-#undef NI_NAMEREQD
-#undef NI_NUMERICSERV
-#undef NI_DGRAM
-#undef NI_NUMERICSCOPE
-
-#define NI_NOFQDN 0x00000001
-#define NI_NUMERICHOST 0x00000002
-#define NI_NAMEREQD 0x00000004
-#define NI_NUMERICSERV 0x00000008
-#define NI_DGRAM 0x00000010
-
-/*
- * Define to map into irs_ namespace.
- */
-
-#define IRS_NAMESPACE
-
-#ifdef IRS_NAMESPACE
-
-/*
- * Use our versions not the ones from the C library.
- */
-
-#ifdef getnameinfo
-#undef getnameinfo
-#endif /* ifdef getnameinfo */
-#define getnameinfo irs_getnameinfo
-
-#ifdef getaddrinfo
-#undef getaddrinfo
-#endif /* ifdef getaddrinfo */
-#define getaddrinfo irs_getaddrinfo
-
-#ifdef freeaddrinfo
-#undef freeaddrinfo
-#endif /* ifdef freeaddrinfo */
-#define freeaddrinfo irs_freeaddrinfo
-
-#ifdef gai_strerror
-#undef gai_strerror
-#endif /* ifdef gai_strerror */
-#define gai_strerror irs_gai_strerror
-
-#endif /* ifdef IRS_NAMESPACE */
-
-int
-getaddrinfo(const char *, const char *, const struct addrinfo *,
- struct addrinfo **);
-int
-getnameinfo(const struct sockaddr *, socklen_t, char *, DWORD, char *, DWORD,
- int);
-void
-freeaddrinfo(struct addrinfo *);
-char *
-gai_strerror(int);
-
-/*
- * Tell Emacs to use C mode on this file.
- * Local variables:
- * mode: c
- * End:
- */
-
-#endif /* IRS_NETDB_H */
; Exported Functions
EXPORTS
-irs_context_create
-irs_context_destroy
-irs_context_get
-irs_context_getappctx
-irs_context_getdnsclient
-irs_context_getdnsconf
-irs_context_getmctx
-irs_context_getresconf
-irs_context_gettask
-irs_context_gettaskmgr
-irs_context_gettimermgr
-irs_dnsconf_destroy
-irs_dnsconf_gettrustedkeys
-irs_dnsconf_load
-irs_freeaddrinfo
-irs_gai_strerror
-irs_getaddrinfo
-irs_getnameinfo
irs_resconf_destroy
irs_resconf_getnameservers
irs_resconf_getndots
<ClCompile Include="DLLMain.c">
<Filter>Source Files</Filter>
</ClCompile>
- <ClCompile Include="..\context.c">
- <Filter>Source Files</Filter>
- </ClCompile>
- <ClCompile Include="..\dnsconf.c">
- <Filter>Source Files</Filter>
- </ClCompile>
- <ClCompile Include="..\gai_strerror.c">
- <Filter>Source Files</Filter>
- </ClCompile>
- <ClCompile Include="..\getaddrinfo.c">
- <Filter>Source Files</Filter>
- </ClCompile>
- <ClCompile Include="..\getnameinfo.c">
- <Filter>Source Files</Filter>
- </ClCompile>
<ClCompile Include="resconf.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
- <ClInclude Include="..\include\irs\context.h">
- <Filter>Header Files</Filter>
- </ClInclude>
- <ClInclude Include="..\include\irs\dnsconf.h">
- <Filter>Header Files</Filter>
- </ClInclude>
- <ClInclude Include="..\include\irs\netdb.h.h">
- <Filter>Header Files</Filter>
- </ClInclude>
<ClInclude Include="..\include\irs\resconf.h">
<Filter>Header Files</Filter>
</ClInclude>
- <ClInclude Include="..\include\irs\types.h">
- <Filter>Header Files</Filter>
- </ClInclude>
</ItemGroup>
</Project>
<None Include="libirs.def" />
</ItemGroup>
<ItemGroup>
- <ClCompile Include="..\context.c" />
- <ClCompile Include="..\dnsconf.c" />
- <ClCompile Include="..\gai_strerror.c" />
- <ClCompile Include="..\getaddrinfo.c" />
- <ClCompile Include="..\getnameinfo.c" />
- <ClCompile Include="DLLMain.c" />
<ClCompile Include="resconf.c" />
</ItemGroup>
<ItemGroup>
- <ClInclude Include="..\include\irs\context.h" />
- <ClInclude Include="..\include\irs\dnsconf.h" />
- <ClInclude Include="..\include\irs\netdb.h" />
<ClInclude Include="..\include\irs\resconf.h" />
- <ClInclude Include="..\include\irs\types.h" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
noinst_PROGRAMS = \
resolve \
sample-async \
- sample-gai \
sample-update \
sample-request \
nsprobe
sample_async_SOURCES = sample-async.c
sample_async_LDADD = $(LIBISC_LIBS) $(LIBDNS_LIBS)
-sample_gai_SOURCES = sample-gai.c
-sample_gai_LDADD = $(LIBIRS_LIBS)
-
sample_update_SOURCES = sample-update.c
sample_update_LDADD = $(LIBISC_LIBS) $(LIBDNS_LIBS)
#include <dst/dst.h>
-#include <irs/netdb.h>
#include <irs/resconf.h>
static char *algname;
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <isc/net.h>
-#include <isc/print.h>
-
-#include <irs/netdb.h>
-
-static void
-do_gai(int family, char *hostname) {
- struct addrinfo hints, *res, *res0;
- int error;
- char namebuf[1024], addrbuf[1024], servbuf[1024];
-
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = family;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_flags = AI_CANONNAME;
- error = getaddrinfo(hostname, "http", &hints, &res0);
- if (error) {
- fprintf(stderr, "getaddrinfo failed for %s,family=%d: %s\n",
- hostname, family, gai_strerror(error));
- return;
- }
-
- for (res = res0; res; res = res->ai_next) {
- error = getnameinfo(res->ai_addr, (socklen_t)res->ai_addrlen,
- addrbuf, sizeof(addrbuf), NULL, 0,
- NI_NUMERICHOST);
- if (error == 0) {
- error = getnameinfo(res->ai_addr,
- (socklen_t)res->ai_addrlen, namebuf,
- sizeof(namebuf), servbuf,
- sizeof(servbuf), 0);
- }
- if (error != 0) {
- fprintf(stderr, "getnameinfo failed: %s\n",
- gai_strerror(error));
- } else {
- printf("%s(%s/%s)=%s:%s\n", hostname, res->ai_canonname,
- addrbuf, namebuf, servbuf);
- }
- }
-
- freeaddrinfo(res0);
-}
-
-int
-main(int argc, char *argv[]) {
- if (argc < 2) {
- exit(1);
- }
-
- do_gai(AF_INET, argv[1]);
- do_gai(AF_INET6, argv[1]);
- do_gai(AF_UNSPEC, argv[1]);
-
- return (0);
-}
./lib/dns/zoneverify.c C 2018,2019,2020
./lib/dns/zt.c C 1999,2000,2001,2002,2004,2005,2006,2007,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020
./lib/irs/api X 2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020
-./lib/irs/context.c C 2009,2014,2016,2018,2019,2020
-./lib/irs/dnsconf.c C 2009,2012,2016,2018,2019,2020
-./lib/irs/gai_strerror.c C 2009,2014,2016,2018,2019,2020
-./lib/irs/getaddrinfo.c C 2009,2012,2013,2014,2015,2016,2017,2018,2019,2020
-./lib/irs/getnameinfo.c C 2009,2011,2012,2013,2014,2016,2017,2018,2019,2020
-./lib/irs/include/irs/context.h C 2009,2016,2018,2019,2020
-./lib/irs/include/irs/dnsconf.h C 2009,2016,2018,2019,2020
-./lib/irs/include/irs/netdb.h C 2009,2016,2017,2018,2019,2020
./lib/irs/include/irs/resconf.h C 2009,2014,2016,2018,2019,2020
-./lib/irs/include/irs/types.h C 2009,2016,2018,2019,2020
./lib/irs/resconf.c C 2009,2011,2012,2014,2015,2016,2017,2018,2019,2020
./lib/irs/tests/resconf_test.c C 2016,2018,2019,2020
./lib/irs/tests/testdata/domain.conf CONF-SH 2016,2018,2019
./lib/irs/tests/testdata/timeout.conf CONF-SH 2016,2018,2019
./lib/irs/tests/testdata/unknown.conf CONF-SH 2016,2018,2019
./lib/irs/win32/DLLMain.c C 2014,2016,2018,2019,2020
-./lib/irs/win32/include/irs/netdb.h C 2014,2016,2017,2018,2019,2020
./lib/irs/win32/libirs.def X 2014,2018,2019,2020
./lib/irs/win32/libirs.vcxproj.filters.in X 2014,2015,2016,2018,2019,2020
./lib/irs/win32/libirs.vcxproj.in X 2014,2015,2016,2017,2018,2019,2020
./lib/samples/resolve.c C 2009,2012,2013,2014,2015,2016,2017,2018,2019,2020
./lib/samples/rootkey.sh SH 2013,2016,2018,2019,2020
./lib/samples/sample-async.c C 2009,2013,2014,2015,2016,2018,2019,2020
-./lib/samples/sample-gai.c C 2009,2012,2013,2014,2015,2016,2018,2019,2020
./lib/samples/sample-request.c C 2009,2012,2013,2014,2015,2016,2018,2019,2020
./lib/samples/sample-update.c C 2009,2010,2012,2013,2014,2015,2016,2017,2018,2019,2020
./lib/samples/win32/async.vcxproj.filters.in X 2014,2015,2018,2019,2020
projects / thirdparty / bind9.git / commitdiff
