[rtems-net-legacy PATCH 1/3] bsd: Add getaddrinfom, gai_strerror, ipv6_addr, if_nametoindex and BSD programs
chrisj at rtems.org
chrisj at rtems.org
Thu Apr 20 05:33:41 UTC 2023
From: Chris Johns <chrisj at rtems.org>
- These additions let the net services repo build with the legacy
stack
---
include/machine/rtems-bsd-thread.h | 34 +
libc/gai_strerror.c | 125 +
libc/getaddrinfo.c | 3086 +++++++++++++++++++++++++
libc/nsswitch.h | 246 ++
libc/vars.c | 47 +
net/if_nametoindex.c | 111 +
netsources.py | 7 +-
resolv.h | 3 +-
rtems/rtems-kernel-program.c | 86 +
rtems_waf | 2 +-
testsuites/resolve/getaddrinfo_test.c | 573 +++++
testsuites/resolve/init.c | 176 ++
testsuites/resolve/resolve.doc | 11 +
testsuites/resolve/resolve.scn | 166 ++
testsuites/resolve/wscript | 49 +
testsuites/wscript | 2 +-
16 files changed, 4720 insertions(+), 4 deletions(-)
create mode 100644 include/machine/rtems-bsd-thread.h
create mode 100644 libc/gai_strerror.c
create mode 100644 libc/getaddrinfo.c
create mode 100644 libc/nsswitch.h
create mode 100644 libc/vars.c
create mode 100644 net/if_nametoindex.c
create mode 100644 rtems/rtems-kernel-program.c
create mode 100644 testsuites/resolve/getaddrinfo_test.c
create mode 100644 testsuites/resolve/init.c
create mode 100644 testsuites/resolve/resolve.doc
create mode 100644 testsuites/resolve/resolve.scn
create mode 100644 testsuites/resolve/wscript
diff --git a/include/machine/rtems-bsd-thread.h b/include/machine/rtems-bsd-thread.h
new file mode 100644
index 0000000..ed3e8b3
--- /dev/null
+++ b/include/machine/rtems-bsd-thread.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2022 On-Line Applications Research Corporation (OAR)
+ * Written by Kinsey Moore <kinsey.moore at oarcorp.com>
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ */
+
+#ifndef _RTEMSLWIP_RTEMS_BSD_THREAD_H
+#define _RTEMSLWIP_RTEMS_BSD_THREAD_H
+#include <sys/param.h>
+#include <rtems.h>
+#include <rtems/score/thread.h>
+
+#define BSD_TASK_NAME rtems_build_name('_', 'B', 'S', 'D')
+#endif
diff --git a/libc/gai_strerror.c b/libc/gai_strerror.c
new file mode 100644
index 0000000..070e237
--- /dev/null
+++ b/libc/gai_strerror.c
@@ -0,0 +1,125 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#ifndef __rtems__
+#include "namespace.h"
+#endif /* __rtems */
+#include <netdb.h>
+#if defined(NLS)
+#include <nl_types.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include "reentrant.h"
+#endif
+#ifndef __rtems__
+#include "un-namespace.h"
+#endif /* __rtems */
+
+/* Entries EAI_ADDRFAMILY (1) and EAI_NODATA (7) are obsoleted, but left */
+/* for backward compatibility with userland code prior to 2553bis-02 */
+static const char *ai_errlist[] = {
+ "Success", /* 0 */
+ "Address family for hostname not supported", /* 1 */
+ "Temporary failure in name resolution", /* EAI_AGAIN */
+ "Invalid value for ai_flags", /* EAI_BADFLAGS */
+ "Non-recoverable failure in name resolution", /* EAI_FAIL */
+ "ai_family not supported", /* EAI_FAMILY */
+ "Memory allocation failure", /* EAI_MEMORY */
+ "No address associated with hostname", /* 7 */
+ "hostname nor servname provided, or not known", /* EAI_NONAME */
+ "servname not supported for ai_socktype", /* EAI_SERVICE */
+ "ai_socktype not supported", /* EAI_SOCKTYPE */
+ "System error returned in errno", /* EAI_SYSTEM */
+ "Invalid value for hints", /* EAI_BADHINTS */
+ "Resolved protocol is unknown", /* EAI_PROTOCOL */
+ "Argument buffer overflow" /* EAI_OVERFLOW */
+};
+
+#if defined(NLS)
+static char gai_buf[NL_TEXTMAX];
+static once_t gai_init_once = ONCE_INITIALIZER;
+static thread_key_t gai_key;
+static int gai_keycreated = 0;
+
+static void
+gai_keycreate(void)
+{
+ gai_keycreated = (thr_keycreate(&gai_key, free) == 0);
+}
+#endif
+
+const char *
+gai_strerror(int ecode)
+{
+#if defined(NLS)
+ nl_catd catd;
+ char *buf;
+
+ if (thr_main() != 0)
+ buf = gai_buf;
+ else {
+ if (thr_once(&gai_init_once, gai_keycreate) != 0 ||
+ !gai_keycreated)
+ goto thr_err;
+ if ((buf = thr_getspecific(gai_key)) == NULL) {
+ if ((buf = malloc(sizeof(gai_buf))) == NULL)
+ goto thr_err;
+ if (thr_setspecific(gai_key, buf) != 0) {
+ free(buf);
+ goto thr_err;
+ }
+ }
+ }
+
+ catd = catopen("libc", NL_CAT_LOCALE);
+ if (ecode > 0 && ecode < EAI_MAX)
+ strlcpy(buf, catgets(catd, 3, ecode, ai_errlist[ecode]),
+ sizeof(gai_buf));
+ else if (ecode == 0)
+ strlcpy(buf, catgets(catd, 3, NL_MSGMAX - 1, "Success"),
+ sizeof(gai_buf));
+ else
+ strlcpy(buf, catgets(catd, 3, NL_MSGMAX, "Unknown error"),
+ sizeof(gai_buf));
+ catclose(catd);
+ return buf;
+
+thr_err:
+#endif
+ if (ecode >= 0 && ecode < EAI_MAX)
+ return ai_errlist[ecode];
+ return "Unknown error";
+}
diff --git a/libc/getaddrinfo.c b/libc/getaddrinfo.c
new file mode 100644
index 0000000..707f13c
--- /dev/null
+++ b/libc/getaddrinfo.c
@@ -0,0 +1,3086 @@
+/* $KAME: getaddrinfo.c,v 1.15 2000/07/09 04:37:24 itojun Exp $ */
+
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * 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.
+ */
+
+/*
+ * Issues to be discussed:
+ * - Return values. There are nonstandard return values defined and used
+ * in the source code. This is because RFC2553 is silent about which error
+ * code must be returned for which situation.
+ * - freeaddrinfo(NULL). RFC2553 is silent about it. XNET 5.2 says it is
+ * invalid. Current code accepts NULL to be compatible with other OSes.
+ *
+ * Note:
+ * - The code filters out AFs that are not supported by the kernel,
+ * when globbing NULL hostname (to loopback, or wildcard). Is it the right
+ * thing to do? What is the relationship with post-RFC2553 AI_ADDRCONFIG
+ * in ai_flags?
+ * - (post-2553) semantics of AI_ADDRCONFIG itself is too vague.
+ * (1) what should we do against numeric hostname (2) what should we do
+ * against NULL hostname (3) what is AI_ADDRCONFIG itself. AF not ready?
+ * non-loopback address configured? global address configured?
+ *
+ * OS specific notes for freebsd4:
+ * - FreeBSD supported $GAI. The code does not.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#ifndef __rtems__
+#include "namespace.h"
+#endif /* __rtems__ */
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <net/if_types.h>
+#include <ifaddrs.h>
+#include <sys/queue.h>
+#ifdef INET6
+#include <sys/sysctl.h>
+#include <sys/ioctl.h>
+#include <netinet6/in6_var.h>
+#include <netinet6/nd6.h>
+#endif
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <rpc/rpc.h>
+#ifndef __rtems__
+#include <rpcsvc/yp_prot.h>
+#include <rpcsvc/ypclnt.h>
+#endif /* __rtems__ */
+#include <netdb.h>
+#include <resolv.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+
+#include "res_config.h"
+
+#ifdef DEBUG
+#include <syslog.h>
+#endif
+
+#include <stdarg.h>
+#ifndef __rtems__
+#include <nsswitch.h>
+#include "un-namespace.h"
+#include "netdb_private.h"
+#include "libc_private.h"
+#else /* __rtems__ */
+#include "nsswitch.h"
+#endif /* __rtems__ */
+#ifdef NS_CACHING
+#include "nscache.h"
+#endif
+
+#ifdef __rtems__
+#define _socket socket
+#define _connect connect
+#define _getsockname getsockname
+#define _close close
+#define RES_SET_H_ERRNO(r, x) r->res_h_errno = x
+static int res_ninit(res_state statp) { return res_init(); }
+#define res_nmkquery(a,b,c,d,e,f,g,h,i,j) res_mkquery(b,c,d,e,f,g,h,i,j)
+#define res_nsend(a,b,c,d,e) res_send(b,c,d,e)
+#undef DEBUG
+static struct __res_state __res;
+static res_state __res_state() {
+ memset(&__res, 0, sizeof(__res));
+ return &__res;
+}
+#endif /* __rtems__ */
+
+#define ANY 0
+#define YES 1
+#define NO 0
+
+static const char in_addrany[] = { 0, 0, 0, 0 };
+static const char in_loopback[] = { 127, 0, 0, 1 };
+#ifdef INET6
+static const char in6_addrany[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+static const char in6_loopback[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
+};
+#endif
+
+struct policyqueue {
+ TAILQ_ENTRY(policyqueue) pc_entry;
+#ifdef INET6
+ struct in6_addrpolicy pc_policy;
+#endif
+};
+TAILQ_HEAD(policyhead, policyqueue);
+
+static const struct afd {
+ int a_af;
+ int a_addrlen;
+ socklen_t a_socklen;
+ int a_off;
+ const char *a_addrany;
+ const char *a_loopback;
+ int a_scoped;
+} afdl [] = {
+#ifdef INET6
+#define N_INET6 0
+ {PF_INET6, sizeof(struct in6_addr),
+ sizeof(struct sockaddr_in6),
+ offsetof(struct sockaddr_in6, sin6_addr),
+ in6_addrany, in6_loopback, 1},
+#define N_INET 1
+#define N_LOCAL 2
+#else
+#define N_INET 0
+#define N_LOCAL 1
+#endif
+ {PF_INET, sizeof(struct in_addr),
+ sizeof(struct sockaddr_in),
+ offsetof(struct sockaddr_in, sin_addr),
+ in_addrany, in_loopback, 0},
+#define sizeofmember(type, member) (sizeof(((type *)0)->member))
+ {PF_LOCAL, sizeofmember(struct sockaddr_un, sun_path),
+ sizeof(struct sockaddr_un),
+ offsetof(struct sockaddr_un, sun_path),
+ NULL, NULL, 0},
+ {0, 0, 0, 0, NULL, NULL, 0},
+};
+
+struct explore {
+ int e_af;
+ int e_socktype;
+ int e_protocol;
+ int e_wild;
+#define AF_ANY 0x01
+#define SOCKTYPE_ANY 0x02
+#define PROTOCOL_ANY 0x04
+#define WILD_AF(ex) ((ex)->e_wild & AF_ANY)
+#define WILD_SOCKTYPE(ex) ((ex)->e_wild & SOCKTYPE_ANY)
+#define WILD_PROTOCOL(ex) ((ex)->e_wild & PROTOCOL_ANY)
+};
+
+static const struct explore explore[] = {
+#ifdef INET6
+ { PF_INET6, SOCK_DGRAM, IPPROTO_UDP,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { PF_INET6, SOCK_STREAM, IPPROTO_TCP,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { PF_INET6, SOCK_STREAM, IPPROTO_SCTP,
+ AF_ANY | SOCKTYPE_ANY },
+ { PF_INET6, SOCK_SEQPACKET, IPPROTO_SCTP,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { PF_INET6, SOCK_DGRAM, IPPROTO_UDPLITE,
+ AF_ANY | SOCKTYPE_ANY },
+ { PF_INET6, SOCK_RAW, ANY,
+ AF_ANY | PROTOCOL_ANY },
+#endif
+ { PF_INET, SOCK_DGRAM, IPPROTO_UDP,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { PF_INET, SOCK_STREAM, IPPROTO_TCP,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { PF_INET, SOCK_STREAM, IPPROTO_SCTP,
+ AF_ANY | SOCKTYPE_ANY },
+ { PF_INET, SOCK_SEQPACKET, IPPROTO_SCTP,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { PF_INET, SOCK_DGRAM, IPPROTO_UDPLITE,
+ AF_ANY | SOCKTYPE_ANY },
+ { PF_INET, SOCK_RAW, ANY,
+ AF_ANY | PROTOCOL_ANY },
+ { PF_LOCAL, SOCK_DGRAM, ANY,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { PF_LOCAL, SOCK_STREAM, ANY,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { PF_LOCAL, SOCK_SEQPACKET, ANY,
+ AF_ANY | SOCKTYPE_ANY | PROTOCOL_ANY },
+ { -1, 0, 0, 0 },
+};
+
+#ifdef INET6
+#define PTON_MAX 16
+#else
+#define PTON_MAX 4
+#endif
+
+#define AIO_SRCFLAG_DEPRECATED 0x1
+
+struct ai_order {
+ union {
+ struct sockaddr_storage aiou_ss;
+ struct sockaddr aiou_sa;
+ } aio_src_un;
+#define aio_srcsa aio_src_un.aiou_sa
+ u_int32_t aio_srcflag;
+ int aio_srcscope;
+ int aio_dstscope;
+ struct policyqueue *aio_srcpolicy;
+ struct policyqueue *aio_dstpolicy;
+ struct addrinfo *aio_ai;
+ int aio_matchlen;
+ int aio_initial_sequence;
+};
+
+static const ns_src default_dns_files[] = {
+ { NSSRC_FILES, NS_SUCCESS },
+ { NSSRC_DNS, NS_SUCCESS },
+ { 0 }
+};
+
+struct res_target {
+ struct res_target *next;
+ const char *name; /* domain name */
+ int qclass, qtype; /* class and type of query */
+ u_char *answer; /* buffer to put answer */
+ int anslen; /* size of answer buffer */
+ int n; /* result length */
+};
+
+#define MAXPACKET (64*1024)
+
+typedef union {
+ HEADER hdr;
+ u_char buf[MAXPACKET];
+} querybuf;
+
+static int str2number(const char *, int *);
+static int explore_copy(const struct addrinfo *, const struct addrinfo *,
+ struct addrinfo **);
+static int explore_null(const struct addrinfo *,
+ const char *, struct addrinfo **);
+static int explore_numeric(const struct addrinfo *, const char *,
+ const char *, struct addrinfo **, const char *);
+static int explore_numeric_scope(const struct addrinfo *, const char *,
+ const char *, struct addrinfo **);
+static int get_canonname(const struct addrinfo *,
+ struct addrinfo *, const char *);
+static struct addrinfo *get_ai(const struct addrinfo *,
+ const struct afd *, const char *);
+static struct addrinfo *copy_ai(const struct addrinfo *);
+static int get_portmatch(const struct addrinfo *, const char *);
+static int get_port(struct addrinfo *, const char *, int);
+static const struct afd *find_afd(int);
+static int addrconfig(struct addrinfo *);
+#ifdef INET6
+static int is_ifdisabled(char *);
+#endif
+static void set_source(struct ai_order *, struct policyhead *);
+static int comp_dst(const void *, const void *);
+#ifdef INET6
+static int ip6_str2scopeid(char *, struct sockaddr_in6 *, u_int32_t *);
+#endif
+static int gai_addr2scopetype(struct sockaddr *);
+
+static int explore_fqdn(const struct addrinfo *, const char *,
+ const char *, struct addrinfo **);
+
+static int reorder(struct addrinfo *);
+static int get_addrselectpolicy(struct policyhead *);
+static void free_addrselectpolicy(struct policyhead *);
+static struct policyqueue *match_addrselectpolicy(struct sockaddr *,
+ struct policyhead *);
+static int matchlen(struct sockaddr *, struct sockaddr *);
+
+static struct addrinfo *getanswer(const querybuf *, int, const char *, int,
+ const struct addrinfo *, res_state);
+#if defined(RESOLVSORT)
+static int addr4sort(struct addrinfo *, res_state);
+#endif
+static int _dns_getaddrinfo(void *, void *, va_list);
+static void _sethtent(FILE **);
+static void _endhtent(FILE **);
+static struct addrinfo *_gethtent(FILE **, const char *,
+ const struct addrinfo *);
+static int _files_getaddrinfo(void *, void *, va_list);
+#ifdef YP
+static struct addrinfo *_yphostent(char *, const struct addrinfo *);
+static int _yp_getaddrinfo(void *, void *, va_list);
+#endif
+#ifdef NS_CACHING
+static int addrinfo_id_func(char *, size_t *, va_list, void *);
+static int addrinfo_marshal_func(char *, size_t *, void *, va_list, void *);
+static int addrinfo_unmarshal_func(char *, size_t, void *, va_list, void *);
+#endif
+
+static int res_queryN(const char *, struct res_target *, res_state);
+static int res_searchN(const char *, struct res_target *, res_state);
+static int res_querydomainN(const char *, const char *,
+ struct res_target *, res_state);
+
+/* XXX macros that make external reference is BAD. */
+
+#define GET_AI(ai, afd, addr) \
+do { \
+ /* external reference: pai, error, and label free */ \
+ (ai) = get_ai(pai, (afd), (addr)); \
+ if ((ai) == NULL) { \
+ error = EAI_MEMORY; \
+ goto free; \
+ } \
+} while (/*CONSTCOND*/0)
+
+#define GET_PORT(ai, serv) \
+do { \
+ /* external reference: error and label free */ \
+ error = get_port((ai), (serv), 0); \
+ if (error != 0) \
+ goto free; \
+} while (/*CONSTCOND*/0)
+
+#define GET_CANONNAME(ai, str) \
+do { \
+ /* external reference: pai, error and label free */ \
+ error = get_canonname(pai, (ai), (str)); \
+ if (error != 0) \
+ goto free; \
+} while (/*CONSTCOND*/0)
+
+#define ERR(err) \
+do { \
+ /* external reference: error, and label bad */ \
+ error = (err); \
+ goto bad; \
+ /*NOTREACHED*/ \
+} while (/*CONSTCOND*/0)
+
+#define MATCH_FAMILY(x, y, w) \
+ ((x) == (y) || (/*CONSTCOND*/(w) && ((x) == PF_UNSPEC || (y) == PF_UNSPEC)))
+#define MATCH(x, y, w) \
+ ((x) == (y) || (/*CONSTCOND*/(w) && ((x) == ANY || (y) == ANY)))
+
+void
+freeaddrinfo(struct addrinfo *ai)
+{
+ struct addrinfo *next;
+
+ while (ai != NULL) {
+ next = ai->ai_next;
+ free(ai->ai_canonname);
+ /* no need to free(ai->ai_addr) */
+ free(ai);
+ ai = next;
+ }
+}
+
+static int
+str2number(const char *p, int *portp)
+{
+ char *ep;
+ unsigned long v;
+
+ if (*p == '\0')
+ return -1;
+ ep = NULL;
+ errno = 0;
+ v = strtoul(p, &ep, 10);
+ if (errno == 0 && ep && *ep == '\0' && v <= UINT_MAX) {
+ *portp = v;
+ return 0;
+ } else
+ return -1;
+}
+
+int
+getaddrinfo(const char *hostname, const char *servname,
+ const struct addrinfo *hints, struct addrinfo **res)
+{
+ struct addrinfo sentinel;
+ struct addrinfo *cur;
+ int error = 0;
+ struct addrinfo ai, ai0, *afai;
+ struct addrinfo *pai;
+ const struct afd *afd;
+ const struct explore *ex;
+ struct addrinfo *afailist[nitems(afdl)];
+ struct addrinfo *afai_unspec;
+ int found;
+ int numeric = 0;
+
+ /* ensure we return NULL on errors */
+ *res = NULL;
+
+ memset(&ai, 0, sizeof(ai));
+
+ memset(afailist, 0, sizeof(afailist));
+ afai_unspec = NULL;
+
+ memset(&sentinel, 0, sizeof(sentinel));
+ cur = &sentinel;
+ pai = &ai;
+ pai->ai_flags = 0;
+ pai->ai_family = PF_UNSPEC;
+ pai->ai_socktype = ANY;
+ pai->ai_protocol = ANY;
+ pai->ai_addrlen = 0;
+ pai->ai_canonname = NULL;
+ pai->ai_addr = NULL;
+ pai->ai_next = NULL;
+
+ if (hostname == NULL && servname == NULL)
+ return EAI_NONAME;
+ if (hints) {
+ /* error check for hints */
+ if (hints->ai_addrlen || hints->ai_canonname ||
+ hints->ai_addr || hints->ai_next)
+ ERR(EAI_BADHINTS); /* xxx */
+ if (hints->ai_flags & ~AI_MASK)
+ ERR(EAI_BADFLAGS);
+ switch (hints->ai_family) {
+ case PF_UNSPEC:
+ case PF_LOCAL:
+ case PF_INET:
+#ifdef INET6
+ case PF_INET6:
+#endif
+ break;
+ default:
+ ERR(EAI_FAMILY);
+ }
+ memcpy(pai, hints, sizeof(*pai));
+
+ /*
+ * if both socktype/protocol are specified, check if they
+ * are meaningful combination.
+ */
+ if (pai->ai_socktype != ANY && pai->ai_protocol != ANY) {
+ for (ex = explore; ex->e_af >= 0; ex++) {
+ if (!MATCH_FAMILY(pai->ai_family, ex->e_af,
+ WILD_AF(ex)))
+ continue;
+ if (!MATCH(pai->ai_socktype, ex->e_socktype,
+ WILD_SOCKTYPE(ex)))
+ continue;
+ if (!MATCH(pai->ai_protocol, ex->e_protocol,
+ WILD_PROTOCOL(ex)))
+ continue;
+
+ /* matched */
+ break;
+ }
+
+ if (ex->e_af < 0)
+ ERR(EAI_BADHINTS);
+ }
+ }
+
+ /*
+ * RFC 3493: AI_ALL and AI_V4MAPPED are effective only against
+ * AF_INET6 query. They need to be ignored if specified in other
+ * occasions.
+ */
+ switch (pai->ai_flags & (AI_ALL | AI_V4MAPPED)) {
+ case AI_V4MAPPED:
+ case AI_ALL | AI_V4MAPPED:
+#ifdef INET6
+ if (pai->ai_family != AF_INET6)
+ pai->ai_flags &= ~(AI_ALL | AI_V4MAPPED);
+ break;
+#endif
+ case AI_ALL:
+ pai->ai_flags &= ~(AI_ALL | AI_V4MAPPED);
+ break;
+ }
+
+ /*
+ * check for special cases. (1) numeric servname is disallowed if
+ * socktype/protocol are left unspecified. (2) servname is disallowed
+ * for raw and other inet{,6} sockets.
+ */
+ if (MATCH_FAMILY(pai->ai_family, PF_INET, 1)
+#ifdef PF_INET6
+ || MATCH_FAMILY(pai->ai_family, PF_INET6, 1)
+#endif
+ ) {
+ ai0 = *pai; /* backup *pai */
+
+ if (pai->ai_family == PF_UNSPEC) {
+#ifdef PF_INET6
+ pai->ai_family = PF_INET6;
+#else
+ pai->ai_family = PF_INET;
+#endif
+ }
+ error = get_portmatch(pai, servname);
+ if (error)
+ goto bad;
+
+ *pai = ai0;
+ }
+
+ ai0 = *pai;
+
+ /*
+ * NULL hostname, or numeric hostname.
+ * If numeric representation of AF1 can be interpreted as FQDN
+ * representation of AF2, we need to think again about the code below.
+ */
+ found = 0;
+ for (afd = afdl; afd->a_af; afd++) {
+ *pai = ai0;
+
+ if (!MATCH_FAMILY(pai->ai_family, afd->a_af, 1))
+ continue;
+
+ if (pai->ai_family == PF_UNSPEC)
+ pai->ai_family = afd->a_af;
+
+ if (hostname == NULL) {
+ error = explore_null(pai, servname,
+ &afailist[afd - afdl]);
+
+ /*
+ * Errors from explore_null should be unexpected and
+ * be caught to avoid returning an incomplete result.
+ */
+ if (error != 0)
+ goto bad;
+ } else {
+ error = explore_numeric_scope(pai, hostname, servname,
+ &afailist[afd - afdl]);
+
+ /*
+ * explore_numeric_scope returns an error for address
+ * families that do not match that of hostname.
+ * Thus we should not catch the error at this moment.
+ */
+ }
+
+ if (!error && afailist[afd - afdl])
+ found++;
+ }
+ if (found) {
+ numeric = 1;
+ goto globcopy;
+ }
+
+ if (hostname == NULL)
+ ERR(EAI_NONAME); /* used to be EAI_NODATA */
+ if (pai->ai_flags & AI_NUMERICHOST)
+ ERR(EAI_NONAME);
+
+ if ((pai->ai_flags & AI_ADDRCONFIG) != 0 && !addrconfig(&ai0))
+ ERR(EAI_FAIL);
+
+ /*
+ * hostname as alphabetical name.
+ */
+ *pai = ai0;
+ error = explore_fqdn(pai, hostname, servname, &afai_unspec);
+
+globcopy:
+ for (ex = explore; ex->e_af >= 0; ex++) {
+ *pai = ai0;
+
+ if (!MATCH_FAMILY(pai->ai_family, ex->e_af, WILD_AF(ex)))
+ continue;
+ if (!MATCH(pai->ai_socktype, ex->e_socktype,
+ WILD_SOCKTYPE(ex)))
+ continue;
+ if (!MATCH(pai->ai_protocol, ex->e_protocol,
+ WILD_PROTOCOL(ex)))
+ continue;
+
+ if (pai->ai_family == PF_UNSPEC)
+ pai->ai_family = ex->e_af;
+ if (pai->ai_socktype == ANY && ex->e_socktype != ANY)
+ pai->ai_socktype = ex->e_socktype;
+ if (pai->ai_protocol == ANY && ex->e_protocol != ANY)
+ pai->ai_protocol = ex->e_protocol;
+
+ /*
+ * if the servname does not match socktype/protocol, ignore it.
+ */
+ if (get_portmatch(pai, servname) != 0)
+ continue;
+
+ if (afai_unspec)
+ afai = afai_unspec;
+ else {
+ if ((afd = find_afd(pai->ai_family)) == NULL)
+ continue;
+ /* XXX assumes that afd points inside afdl[] */
+ afai = afailist[afd - afdl];
+ }
+ if (!afai)
+ continue;
+
+ error = explore_copy(pai, afai, &cur->ai_next);
+ if (error != 0)
+ goto bad;
+
+ while (cur && cur->ai_next)
+ cur = cur->ai_next;
+ }
+
+ /*
+ * ensure we return either:
+ * - error == 0, non-NULL *res
+ * - error != 0, NULL *res
+ */
+ if (error == 0) {
+ if (sentinel.ai_next) {
+ /*
+ * If the returned entry is for an active connection,
+ * and the given name is not numeric, reorder the
+ * list, so that the application would try the list
+ * in the most efficient order. Since the head entry
+ * of the original list may contain ai_canonname and
+ * that entry may be moved elsewhere in the new list,
+ * we keep the pointer and will restore it in the new
+ * head entry. (Note that RFC3493 requires the head
+ * entry store it when requested by the caller).
+ */
+ if (hints == NULL || !(hints->ai_flags & AI_PASSIVE)) {
+ if (!numeric) {
+ char *canonname;
+
+ canonname =
+ sentinel.ai_next->ai_canonname;
+ sentinel.ai_next->ai_canonname = NULL;
+ (void)reorder(&sentinel);
+ if (sentinel.ai_next->ai_canonname ==
+ NULL) {
+ sentinel.ai_next->ai_canonname
+ = canonname;
+ } else if (canonname != NULL)
+ free(canonname);
+ }
+ }
+ *res = sentinel.ai_next;
+ } else
+ error = EAI_FAIL;
+ }
+
+bad:
+ if (afai_unspec)
+ freeaddrinfo(afai_unspec);
+ for (afd = afdl; afd->a_af; afd++) {
+ if (afailist[afd - afdl])
+ freeaddrinfo(afailist[afd - afdl]);
+ }
+ if (!*res)
+ if (sentinel.ai_next)
+ freeaddrinfo(sentinel.ai_next);
+
+ return (error);
+}
+
+static int
+reorder(struct addrinfo *sentinel)
+{
+ struct addrinfo *ai, **aip;
+ struct ai_order *aio;
+ int i, n;
+ struct policyhead policyhead;
+
+ /* count the number of addrinfo elements for sorting. */
+ for (n = 0, ai = sentinel->ai_next; ai != NULL; ai = ai->ai_next, n++)
+ ;
+
+ /*
+ * If the number is small enough, we can skip the reordering process.
+ */
+ if (n <= 1)
+ return(n);
+
+ /* allocate a temporary array for sort and initialization of it. */
+ if ((aio = calloc(n, sizeof(*aio))) == NULL)
+ return(n); /* give up reordering */
+
+ /* retrieve address selection policy from the kernel */
+ TAILQ_INIT(&policyhead);
+ if (!get_addrselectpolicy(&policyhead)) {
+ /* no policy is installed into kernel, we don't sort. */
+ free(aio);
+ return (n);
+ }
+
+ for (i = 0, ai = sentinel->ai_next; i < n; ai = ai->ai_next, i++) {
+ aio[i].aio_ai = ai;
+ aio[i].aio_dstscope = gai_addr2scopetype(ai->ai_addr);
+ aio[i].aio_dstpolicy = match_addrselectpolicy(ai->ai_addr,
+ &policyhead);
+ set_source(&aio[i], &policyhead);
+ aio[i].aio_initial_sequence = i;
+ }
+
+ /* perform sorting. */
+ qsort(aio, n, sizeof(*aio), comp_dst);
+
+ /* reorder the addrinfo chain. */
+ for (i = 0, aip = &sentinel->ai_next; i < n; i++) {
+ *aip = aio[i].aio_ai;
+ aip = &aio[i].aio_ai->ai_next;
+ }
+ *aip = NULL;
+
+ /* cleanup and return */
+ free(aio);
+ free_addrselectpolicy(&policyhead);
+ return(n);
+}
+
+static int
+get_addrselectpolicy(struct policyhead *head)
+{
+#ifdef INET6
+ int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_ADDRCTLPOLICY };
+ size_t l;
+ char *buf;
+ struct in6_addrpolicy *pol, *ep;
+
+ if (sysctl(mib, nitems(mib), NULL, &l, NULL, 0) < 0)
+ return (0);
+ if (l == 0)
+ return (0);
+ if ((buf = malloc(l)) == NULL)
+ return (0);
+ if (sysctl(mib, nitems(mib), buf, &l, NULL, 0) < 0) {
+ free(buf);
+ return (0);
+ }
+
+ ep = (struct in6_addrpolicy *)(buf + l);
+ for (pol = (struct in6_addrpolicy *)buf; pol + 1 <= ep; pol++) {
+ struct policyqueue *new;
+
+ if ((new = malloc(sizeof(*new))) == NULL) {
+ free_addrselectpolicy(head); /* make the list empty */
+ break;
+ }
+ new->pc_policy = *pol;
+ TAILQ_INSERT_TAIL(head, new, pc_entry);
+ }
+
+ free(buf);
+ return (1);
+#else
+ return (0);
+#endif
+}
+
+static void
+free_addrselectpolicy(struct policyhead *head)
+{
+ struct policyqueue *ent, *nent;
+
+ for (ent = TAILQ_FIRST(head); ent; ent = nent) {
+ nent = TAILQ_NEXT(ent, pc_entry);
+ TAILQ_REMOVE(head, ent, pc_entry);
+ free(ent);
+ }
+}
+
+static struct policyqueue *
+match_addrselectpolicy(struct sockaddr *addr, struct policyhead *head)
+{
+#ifdef INET6
+ struct policyqueue *ent, *bestent = NULL;
+ struct in6_addrpolicy *pol;
+ int matchlen, bestmatchlen = -1;
+ u_char *mp, *ep, *k, *p, m;
+ struct sockaddr_in6 key;
+
+ switch(addr->sa_family) {
+ case AF_INET6:
+ key = *(struct sockaddr_in6 *)addr;
+ break;
+ case AF_INET:
+ /* convert the address into IPv4-mapped IPv6 address. */
+ memset(&key, 0, sizeof(key));
+ key.sin6_family = AF_INET6;
+ key.sin6_len = sizeof(key);
+ _map_v4v6_address(
+ (char *)&((struct sockaddr_in *)addr)->sin_addr,
+ (char *)&key.sin6_addr);
+ break;
+ default:
+ return(NULL);
+ }
+
+ for (ent = TAILQ_FIRST(head); ent; ent = TAILQ_NEXT(ent, pc_entry)) {
+ pol = &ent->pc_policy;
+ matchlen = 0;
+
+ mp = (u_char *)&pol->addrmask.sin6_addr;
+ ep = mp + 16; /* XXX: scope field? */
+ k = (u_char *)&key.sin6_addr;
+ p = (u_char *)&pol->addr.sin6_addr;
+ for (; mp < ep && *mp; mp++, k++, p++) {
+ m = *mp;
+ if ((*k & m) != *p)
+ goto next; /* not match */
+ if (m == 0xff) /* short cut for a typical case */
+ matchlen += 8;
+ else {
+ while (m >= 0x80) {
+ matchlen++;
+ m <<= 1;
+ }
+ }
+ }
+
+ /* matched. check if this is better than the current best. */
+ if (matchlen > bestmatchlen) {
+ bestent = ent;
+ bestmatchlen = matchlen;
+ }
+
+ next:
+ continue;
+ }
+
+ return(bestent);
+#else
+ return(NULL);
+#endif
+
+}
+
+static void
+set_source(struct ai_order *aio, struct policyhead *ph)
+{
+ struct addrinfo ai = *aio->aio_ai;
+ struct sockaddr_storage ss;
+ socklen_t srclen;
+ int s;
+
+ /* set unspec ("no source is available"), just in case */
+ aio->aio_srcsa.sa_family = AF_UNSPEC;
+ aio->aio_srcscope = -1;
+
+ switch(ai.ai_family) {
+ case AF_INET:
+#ifdef INET6
+ case AF_INET6:
+#endif
+ break;
+ default: /* ignore unsupported AFs explicitly */
+ return;
+ }
+
+ /* XXX: make a dummy addrinfo to call connect() */
+ ai.ai_socktype = SOCK_DGRAM;
+ ai.ai_protocol = IPPROTO_UDP; /* is UDP too specific? */
+ ai.ai_next = NULL;
+ memset(&ss, 0, sizeof(ss));
+ memcpy(&ss, ai.ai_addr, ai.ai_addrlen);
+ ai.ai_addr = (struct sockaddr *)&ss;
+ get_port(&ai, "1", 0);
+
+ /* open a socket to get the source address for the given dst */
+ if ((s = _socket(ai.ai_family, ai.ai_socktype | SOCK_CLOEXEC,
+ ai.ai_protocol)) < 0)
+ return; /* give up */
+#ifdef INET6
+ if (ai.ai_family == AF_INET6) {
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)ai.ai_addr;
+ int off = 0;
+
+ if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
+ (void)_setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
+ (char *)&off, sizeof(off));
+ }
+#endif
+ if (_connect(s, ai.ai_addr, ai.ai_addrlen) < 0)
+ goto cleanup;
+ srclen = ai.ai_addrlen;
+ if (_getsockname(s, &aio->aio_srcsa, &srclen) < 0) {
+ aio->aio_srcsa.sa_family = AF_UNSPEC;
+ goto cleanup;
+ }
+ aio->aio_srcscope = gai_addr2scopetype(&aio->aio_srcsa);
+ aio->aio_srcpolicy = match_addrselectpolicy(&aio->aio_srcsa, ph);
+ aio->aio_matchlen = matchlen(&aio->aio_srcsa, aio->aio_ai->ai_addr);
+#ifdef INET6
+ if (ai.ai_family == AF_INET6) {
+ struct in6_ifreq ifr6;
+ u_int32_t flags6;
+
+ memset(&ifr6, 0, sizeof(ifr6));
+ memcpy(&ifr6.ifr_addr, ai.ai_addr, ai.ai_addrlen);
+ if (_ioctl(s, SIOCGIFAFLAG_IN6, &ifr6) == 0) {
+ flags6 = ifr6.ifr_ifru.ifru_flags6;
+ if ((flags6 & IN6_IFF_DEPRECATED))
+ aio->aio_srcflag |= AIO_SRCFLAG_DEPRECATED;
+ }
+ }
+#endif
+
+ cleanup:
+ _close(s);
+ return;
+}
+
+static int
+matchlen(struct sockaddr *src, struct sockaddr *dst)
+{
+ int match = 0;
+ u_char *s, *d;
+ u_char *lim, r;
+ int addrlen;
+
+ switch (src->sa_family) {
+#ifdef INET6
+ case AF_INET6:
+ s = (u_char *)&((struct sockaddr_in6 *)src)->sin6_addr;
+ d = (u_char *)&((struct sockaddr_in6 *)dst)->sin6_addr;
+ addrlen = sizeof(struct in6_addr);
+ lim = s + addrlen;
+ break;
+#endif
+ case AF_INET:
+ s = (u_char *)&((struct sockaddr_in *)src)->sin_addr;
+ d = (u_char *)&((struct sockaddr_in *)dst)->sin_addr;
+ addrlen = sizeof(struct in_addr);
+ lim = s + addrlen;
+ break;
+ default:
+ return(0);
+ }
+
+ while (s < lim)
+ if ((r = (*d++ ^ *s++)) != 0) {
+ while ((r & 0x80) == 0) {
+ match++;
+ r <<= 1;
+ }
+ break;
+ } else
+ match += 8;
+ return(match);
+}
+
+static int
+comp_dst(const void *arg1, const void *arg2)
+{
+ const struct ai_order *dst1 = arg1, *dst2 = arg2;
+
+ /*
+ * Rule 1: Avoid unusable destinations.
+ * XXX: we currently do not consider if an appropriate route exists.
+ */
+ if (dst1->aio_srcsa.sa_family != AF_UNSPEC &&
+ dst2->aio_srcsa.sa_family == AF_UNSPEC) {
+ return(-1);
+ }
+ if (dst1->aio_srcsa.sa_family == AF_UNSPEC &&
+ dst2->aio_srcsa.sa_family != AF_UNSPEC) {
+ return(1);
+ }
+
+ /* Rule 2: Prefer matching scope. */
+ if (dst1->aio_dstscope == dst1->aio_srcscope &&
+ dst2->aio_dstscope != dst2->aio_srcscope) {
+ return(-1);
+ }
+ if (dst1->aio_dstscope != dst1->aio_srcscope &&
+ dst2->aio_dstscope == dst2->aio_srcscope) {
+ return(1);
+ }
+
+ /* Rule 3: Avoid deprecated addresses. */
+ if (dst1->aio_srcsa.sa_family != AF_UNSPEC &&
+ dst2->aio_srcsa.sa_family != AF_UNSPEC) {
+ if (!(dst1->aio_srcflag & AIO_SRCFLAG_DEPRECATED) &&
+ (dst2->aio_srcflag & AIO_SRCFLAG_DEPRECATED)) {
+ return(-1);
+ }
+ if ((dst1->aio_srcflag & AIO_SRCFLAG_DEPRECATED) &&
+ !(dst2->aio_srcflag & AIO_SRCFLAG_DEPRECATED)) {
+ return(1);
+ }
+ }
+
+ /* Rule 4: Prefer home addresses. */
+ /* XXX: not implemented yet */
+
+ /* Rule 5: Prefer matching label. */
+#ifdef INET6
+ if (dst1->aio_srcpolicy && dst1->aio_dstpolicy &&
+ dst1->aio_srcpolicy->pc_policy.label ==
+ dst1->aio_dstpolicy->pc_policy.label &&
+ (dst2->aio_srcpolicy == NULL || dst2->aio_dstpolicy == NULL ||
+ dst2->aio_srcpolicy->pc_policy.label !=
+ dst2->aio_dstpolicy->pc_policy.label)) {
+ return(-1);
+ }
+ if (dst2->aio_srcpolicy && dst2->aio_dstpolicy &&
+ dst2->aio_srcpolicy->pc_policy.label ==
+ dst2->aio_dstpolicy->pc_policy.label &&
+ (dst1->aio_srcpolicy == NULL || dst1->aio_dstpolicy == NULL ||
+ dst1->aio_srcpolicy->pc_policy.label !=
+ dst1->aio_dstpolicy->pc_policy.label)) {
+ return(1);
+ }
+#endif
+
+ /* Rule 6: Prefer higher precedence. */
+#ifdef INET6
+ if (dst1->aio_dstpolicy &&
+ (dst2->aio_dstpolicy == NULL ||
+ dst1->aio_dstpolicy->pc_policy.preced >
+ dst2->aio_dstpolicy->pc_policy.preced)) {
+ return(-1);
+ }
+ if (dst2->aio_dstpolicy &&
+ (dst1->aio_dstpolicy == NULL ||
+ dst2->aio_dstpolicy->pc_policy.preced >
+ dst1->aio_dstpolicy->pc_policy.preced)) {
+ return(1);
+ }
+#endif
+
+ /* Rule 7: Prefer native transport. */
+ /* XXX: not implemented yet */
+
+ /* Rule 8: Prefer smaller scope. */
+ if (dst1->aio_dstscope >= 0 &&
+ dst1->aio_dstscope < dst2->aio_dstscope) {
+ return(-1);
+ }
+ if (dst2->aio_dstscope >= 0 &&
+ dst2->aio_dstscope < dst1->aio_dstscope) {
+ return(1);
+ }
+
+ /*
+ * Rule 9: Use longest matching prefix.
+ * We compare the match length in a same AF only.
+ */
+ if (dst1->aio_ai->ai_addr->sa_family ==
+ dst2->aio_ai->ai_addr->sa_family &&
+ dst1->aio_ai->ai_addr->sa_family != AF_INET) {
+ if (dst1->aio_matchlen > dst2->aio_matchlen) {
+ return(-1);
+ }
+ if (dst1->aio_matchlen < dst2->aio_matchlen) {
+ return(1);
+ }
+ }
+
+ /* Rule 10: Otherwise, leave the order unchanged. */
+
+ /*
+ * Note that qsort is unstable; so, we can't return zero and
+ * expect the order to be unchanged.
+ * That also means we can't depend on the current position of
+ * dst2 being after dst1. We must enforce the initial order
+ * with an explicit compare on the original position.
+ * The qsort specification requires that "When the same objects
+ * (consisting of width bytes, irrespective of their current
+ * positions in the array) are passed more than once to the
+ * comparison function, the results shall be consistent with one
+ * another."
+ * In other words, If A < B, then we must also return B > A.
+ */
+ if (dst2->aio_initial_sequence < dst1->aio_initial_sequence)
+ return(1);
+
+ return(-1);
+}
+
+/*
+ * Copy from scope.c.
+ * XXX: we should standardize the functions and link them as standard
+ * library.
+ */
+static int
+gai_addr2scopetype(struct sockaddr *sa)
+{
+#ifdef INET6
+ struct sockaddr_in6 *sa6;
+#endif
+ struct sockaddr_in *sa4;
+
+ switch(sa->sa_family) {
+#ifdef INET6
+ case AF_INET6:
+ sa6 = (struct sockaddr_in6 *)sa;
+ if (IN6_IS_ADDR_MULTICAST(&sa6->sin6_addr)) {
+ /* just use the scope field of the multicast address */
+ return(sa6->sin6_addr.s6_addr[2] & 0x0f);
+ }
+ /*
+ * Unicast addresses: map scope type to corresponding scope
+ * value defined for multcast addresses.
+ * XXX: hardcoded scope type values are bad...
+ */
+ if (IN6_IS_ADDR_LOOPBACK(&sa6->sin6_addr))
+ return(1); /* node local scope */
+ if (IN6_IS_ADDR_LINKLOCAL(&sa6->sin6_addr))
+ return(2); /* link-local scope */
+ if (IN6_IS_ADDR_SITELOCAL(&sa6->sin6_addr))
+ return(5); /* site-local scope */
+ return(14); /* global scope */
+ break;
+#endif
+ case AF_INET:
+ /*
+ * IPv4 pseudo scoping according to RFC 3484.
+ */
+ sa4 = (struct sockaddr_in *)sa;
+ /* IPv4 autoconfiguration addresses have link-local scope. */
+ if (((u_char *)&sa4->sin_addr)[0] == 169 &&
+ ((u_char *)&sa4->sin_addr)[1] == 254)
+ return(2);
+ /* Private addresses have site-local scope. */
+ if (((u_char *)&sa4->sin_addr)[0] == 10 ||
+ (((u_char *)&sa4->sin_addr)[0] == 172 &&
+ (((u_char *)&sa4->sin_addr)[1] & 0xf0) == 16) ||
+ (((u_char *)&sa4->sin_addr)[0] == 192 &&
+ ((u_char *)&sa4->sin_addr)[1] == 168))
+ return(14); /* XXX: It should be 5 unless NAT */
+ /* Loopback addresses have link-local scope. */
+ if (((u_char *)&sa4->sin_addr)[0] == 127)
+ return(2);
+ return(14);
+ break;
+ default:
+ errno = EAFNOSUPPORT; /* is this a good error? */
+ return(-1);
+ }
+}
+
+static int
+explore_copy(const struct addrinfo *pai, const struct addrinfo *src0,
+ struct addrinfo **res)
+{
+ int error;
+ struct addrinfo sentinel, *cur;
+ const struct addrinfo *src;
+
+ error = 0;
+ sentinel.ai_next = NULL;
+ cur = &sentinel;
+
+ for (src = src0; src != NULL; src = src->ai_next) {
+ if (src->ai_family != pai->ai_family)
+ continue;
+
+ cur->ai_next = copy_ai(src);
+ if (!cur->ai_next) {
+ error = EAI_MEMORY;
+ goto fail;
+ }
+
+ cur->ai_next->ai_socktype = pai->ai_socktype;
+ cur->ai_next->ai_protocol = pai->ai_protocol;
+ cur = cur->ai_next;
+ }
+
+ *res = sentinel.ai_next;
+ return 0;
+
+fail:
+ freeaddrinfo(sentinel.ai_next);
+ return error;
+}
+
+/*
+ * hostname == NULL.
+ * passive socket -> anyaddr (0.0.0.0 or ::)
+ * non-passive socket -> localhost (127.0.0.1 or ::1)
+ */
+static int
+explore_null(const struct addrinfo *pai, const char *servname,
+ struct addrinfo **res)
+{
+ int s;
+ const struct afd *afd;
+ struct addrinfo *ai;
+ int error;
+
+ *res = NULL;
+ ai = NULL;
+
+ if (pai->ai_family == PF_LOCAL)
+ return (0);
+
+ /*
+ * filter out AFs that are not supported by the kernel
+ * XXX errno?
+ */
+ s = _socket(pai->ai_family, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+ if (s < 0) {
+ if (errno != EMFILE)
+ return 0;
+ } else
+ _close(s);
+
+ afd = find_afd(pai->ai_family);
+ if (afd == NULL)
+ return 0;
+
+ if (pai->ai_flags & AI_PASSIVE) {
+ GET_AI(ai, afd, afd->a_addrany);
+ GET_PORT(ai, servname);
+ } else {
+ GET_AI(ai, afd, afd->a_loopback);
+ GET_PORT(ai, servname);
+ }
+
+ *res = ai;
+ return 0;
+
+free:
+ if (ai != NULL)
+ freeaddrinfo(ai);
+ return error;
+}
+
+/*
+ * numeric hostname
+ */
+static int
+explore_numeric(const struct addrinfo *pai, const char *hostname,
+ const char *servname, struct addrinfo **res, const char *canonname)
+{
+ const struct afd *afd;
+ struct addrinfo *ai, ai0;
+ int error;
+ char pton[PTON_MAX], path[PATH_MAX], *p;
+
+#ifdef CTASSERT
+ CTASSERT(sizeofmember(struct sockaddr_un, sun_path) <= PATH_MAX);
+#endif
+ *res = NULL;
+ ai = NULL;
+
+ afd = find_afd(pai->ai_family);
+ if (afd == NULL)
+ return 0;
+
+ switch (afd->a_af) {
+ case AF_LOCAL:
+ if (hostname[0] != '/')
+ ERR(EAI_NONAME);
+ if (strlen(hostname) > afd->a_addrlen)
+ ERR(EAI_MEMORY);
+ /* NUL-termination does not need to be guaranteed. */
+ strncpy(path, hostname, afd->a_addrlen);
+ p = &path[0];
+ break;
+ case AF_INET:
+ /*
+ * RFC3493 requires getaddrinfo() to accept AF_INET formats
+ * that are accepted by inet_addr() and its family. The
+ * accepted forms includes the "classful" one, which inet_pton
+ * does not accept. So we need to separate the case for
+ * AF_INET.
+ */
+ if (inet_aton(hostname, (struct in_addr *)pton) != 1 ||
+ hostname[strspn(hostname, "0123456789.xabcdefXABCDEF")] != '\0')
+ return 0;
+ p = pton;
+ break;
+ default:
+ if (inet_pton(afd->a_af, hostname, pton) != 1) {
+ if (pai->ai_family != AF_INET6 ||
+ (pai->ai_flags & AI_V4MAPPED) != AI_V4MAPPED)
+ return 0;
+ if (inet_aton(hostname, (struct in_addr *)pton) != 1)
+ return 0;
+ afd = &afdl[N_INET];
+ ai0 = *pai;
+ ai0.ai_family = AF_INET;
+ pai = &ai0;
+ }
+ p = pton;
+ break;
+ }
+
+ if (pai->ai_family == afd->a_af) {
+ GET_AI(ai, afd, p);
+ GET_PORT(ai, servname);
+ if ((pai->ai_family == AF_INET ||
+ pai->ai_family == AF_INET6) &&
+ (pai->ai_flags & AI_CANONNAME)) {
+ /*
+ * Set the numeric address itself as the canonical
+ * name, based on a clarification in RFC3493.
+ */
+ GET_CANONNAME(ai, canonname);
+ }
+ } else {
+ /*
+ * XXX: This should not happen since we already matched the AF
+ * by find_afd.
+ */
+ ERR(EAI_FAMILY);
+ }
+
+ *res = ai;
+ return 0;
+
+free:
+bad:
+ if (ai != NULL)
+ freeaddrinfo(ai);
+ return error;
+}
+
+/*
+ * numeric hostname with scope
+ */
+static int
+explore_numeric_scope(const struct addrinfo *pai, const char *hostname,
+ const char *servname, struct addrinfo **res)
+{
+#if !defined(SCOPE_DELIMITER) || !defined(INET6)
+ return explore_numeric(pai, hostname, servname, res, hostname);
+#else
+ const struct afd *afd;
+ struct addrinfo *cur;
+ int error;
+ char *cp, *hostname2 = NULL, *scope, *addr;
+ struct sockaddr_in6 *sin6;
+
+ afd = find_afd(pai->ai_family);
+ if (afd == NULL)
+ return 0;
+
+ if (!afd->a_scoped)
+ return explore_numeric(pai, hostname, servname, res, hostname);
+
+ cp = strchr(hostname, SCOPE_DELIMITER);
+ if (cp == NULL)
+ return explore_numeric(pai, hostname, servname, res, hostname);
+
+ /*
+ * Handle special case of <scoped_address><delimiter><scope id>
+ */
+ hostname2 = strdup(hostname);
+ if (hostname2 == NULL)
+ return EAI_MEMORY;
+ /* terminate at the delimiter */
+ hostname2[cp - hostname] = '\0';
+ addr = hostname2;
+ scope = cp + 1;
+
+ error = explore_numeric(pai, addr, servname, res, hostname);
+ if (error == 0) {
+ u_int32_t scopeid;
+
+ for (cur = *res; cur; cur = cur->ai_next) {
+ if (cur->ai_family != AF_INET6)
+ continue;
+ sin6 = (struct sockaddr_in6 *)(void *)cur->ai_addr;
+ if (ip6_str2scopeid(scope, sin6, &scopeid) == -1) {
+ free(hostname2);
+ freeaddrinfo(*res);
+ *res = NULL;
+ return(EAI_NONAME); /* XXX: is return OK? */
+ }
+ sin6->sin6_scope_id = scopeid;
+ }
+ }
+
+ free(hostname2);
+
+ if (error && *res) {
+ freeaddrinfo(*res);
+ *res = NULL;
+ }
+ return error;
+#endif
+}
+
+static int
+get_canonname(const struct addrinfo *pai, struct addrinfo *ai, const char *str)
+{
+ if ((pai->ai_flags & AI_CANONNAME) != 0) {
+ ai->ai_canonname = strdup(str);
+ if (ai->ai_canonname == NULL)
+ return EAI_MEMORY;
+ }
+ return 0;
+}
+
+static struct addrinfo *
+get_ai(const struct addrinfo *pai, const struct afd *afd, const char *addr)
+{
+ char *p;
+ struct addrinfo *ai;
+#ifdef INET6
+ struct in6_addr mapaddr;
+
+ if (afd->a_af == AF_INET && (pai->ai_flags & AI_V4MAPPED) != 0) {
+ afd = &afdl[N_INET6];
+ _map_v4v6_address(addr, (char *)&mapaddr);
+ addr = (char *)&mapaddr;
+ }
+#endif
+
+ ai = (struct addrinfo *)malloc(sizeof(struct addrinfo)
+ + (afd->a_socklen));
+ if (ai == NULL)
+ return NULL;
+
+ memcpy(ai, pai, sizeof(struct addrinfo));
+ ai->ai_addr = (struct sockaddr *)(void *)(ai + 1);
+ memset(ai->ai_addr, 0, (size_t)afd->a_socklen);
+ ai->ai_addr->sa_len = afd->a_socklen;
+ ai->ai_addrlen = afd->a_socklen;
+ if (ai->ai_family == PF_LOCAL) {
+ size_t n = strnlen(addr, afd->a_addrlen);
+
+ ai->ai_addrlen -= afd->a_addrlen - n;
+ ai->ai_addr->sa_len -= afd->a_addrlen - n;
+ }
+ ai->ai_addr->sa_family = ai->ai_family = afd->a_af;
+ p = (char *)(void *)(ai->ai_addr);
+ memcpy(p + afd->a_off, addr, (size_t)afd->a_addrlen);
+ return ai;
+}
+
+/* XXX need to malloc() the same way we do from other functions! */
+static struct addrinfo *
+copy_ai(const struct addrinfo *pai)
+{
+ struct addrinfo *ai;
+ size_t l;
+
+ l = sizeof(*ai) + pai->ai_addrlen;
+ if ((ai = calloc(1, l)) == NULL)
+ return NULL;
+ memcpy(ai, pai, sizeof(*ai));
+ ai->ai_addr = (struct sockaddr *)(void *)(ai + 1);
+ memcpy(ai->ai_addr, pai->ai_addr, pai->ai_addrlen);
+
+ if (pai->ai_canonname) {
+ l = strlen(pai->ai_canonname) + 1;
+ if ((ai->ai_canonname = malloc(l)) == NULL) {
+ free(ai);
+ return NULL;
+ }
+ strlcpy(ai->ai_canonname, pai->ai_canonname, l);
+ } else {
+ /* just to make sure */
+ ai->ai_canonname = NULL;
+ }
+
+ ai->ai_next = NULL;
+
+ return ai;
+}
+
+static int
+get_portmatch(const struct addrinfo *ai, const char *servname)
+{
+
+ /* get_port does not touch first argument when matchonly == 1. */
+ /* LINTED const cast */
+ return get_port((struct addrinfo *)ai, servname, 1);
+}
+
+static int
+get_port(struct addrinfo *ai, const char *servname, int matchonly)
+{
+ const char *proto;
+ struct servent *sp;
+ int port, error;
+ int allownumeric;
+
+ if (servname == NULL)
+ return 0;
+ switch (ai->ai_family) {
+ case AF_LOCAL:
+ /* AF_LOCAL ignores servname silently. */
+ return (0);
+ case AF_INET:
+#ifdef AF_INET6
+ case AF_INET6:
+#endif
+ break;
+ default:
+ return 0;
+ }
+
+ switch (ai->ai_socktype) {
+ case SOCK_RAW:
+ return EAI_SERVICE;
+ case SOCK_DGRAM:
+ case SOCK_STREAM:
+ case SOCK_SEQPACKET:
+ allownumeric = 1;
+ break;
+ case ANY:
+ switch (ai->ai_family) {
+ case AF_INET:
+#ifdef AF_INET6
+ case AF_INET6:
+#endif
+ allownumeric = 1;
+ break;
+ default:
+ allownumeric = 0;
+ break;
+ }
+ break;
+ default:
+ return EAI_SOCKTYPE;
+ }
+
+ error = str2number(servname, &port);
+ if (error == 0) {
+ if (!allownumeric)
+ return EAI_SERVICE;
+ if (port < 0 || port > 65535)
+ return EAI_SERVICE;
+ port = htons(port);
+ } else {
+ if (ai->ai_flags & AI_NUMERICSERV)
+ return EAI_NONAME;
+
+ switch (ai->ai_protocol) {
+ case IPPROTO_UDP:
+ proto = "udp";
+ break;
+ case IPPROTO_TCP:
+ proto = "tcp";
+ break;
+ case IPPROTO_SCTP:
+ proto = "sctp";
+ break;
+ case IPPROTO_UDPLITE:
+ proto = "udplite";
+ break;
+ default:
+ proto = NULL;
+ break;
+ }
+
+ if ((sp = getservbyname(servname, proto)) == NULL)
+ return EAI_SERVICE;
+ port = sp->s_port;
+ }
+
+ if (!matchonly) {
+ switch (ai->ai_family) {
+ case AF_INET:
+ ((struct sockaddr_in *)(void *)
+ ai->ai_addr)->sin_port = port;
+ break;
+#ifdef INET6
+ case AF_INET6:
+ ((struct sockaddr_in6 *)(void *)
+ ai->ai_addr)->sin6_port = port;
+ break;
+#endif
+ }
+ }
+
+ return 0;
+}
+
+static const struct afd *
+find_afd(int af)
+{
+ const struct afd *afd;
+
+ if (af == PF_UNSPEC)
+ return NULL;
+ for (afd = afdl; afd->a_af; afd++) {
+ if (afd->a_af == af)
+ return afd;
+ }
+ return NULL;
+}
+
+/*
+ * RFC 3493: AI_ADDRCONFIG check. Determines which address families are
+ * configured on the local system and correlates with pai->ai_family value.
+ * If an address family is not configured on the system, it will not be
+ * queried for. For this purpose, loopback addresses are not considered
+ * configured addresses.
+ *
+ * XXX PF_UNSPEC -> PF_INET6 + PF_INET mapping needs to be in sync with
+ * _dns_getaddrinfo.
+ */
+static int
+addrconfig(struct addrinfo *pai)
+{
+ struct ifaddrs *ifaddrs, *ifa;
+ struct sockaddr_in *sin;
+#ifdef INET6
+ struct sockaddr_in6 *sin6;
+#endif
+ int seen_inet = 0, seen_inet6 = 0;
+
+ if (getifaddrs(&ifaddrs) != 0)
+ return (0);
+
+ for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr == NULL || (ifa->ifa_flags & IFF_UP) == 0)
+ continue;
+ switch (ifa->ifa_addr->sa_family) {
+ case AF_INET:
+ if (seen_inet)
+ continue;
+ sin = (struct sockaddr_in *)(ifa->ifa_addr);
+ if (htonl(sin->sin_addr.s_addr) == INADDR_LOOPBACK)
+ continue;
+ seen_inet = 1;
+ break;
+#ifdef INET6
+ case AF_INET6:
+ if (seen_inet6)
+ continue;
+ sin6 = (struct sockaddr_in6 *)(ifa->ifa_addr);
+ if (IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr))
+ continue;
+ if ((ifa->ifa_flags & IFT_LOOP) != 0 &&
+ IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr))
+ continue;
+ if (is_ifdisabled(ifa->ifa_name))
+ continue;
+ seen_inet6 = 1;
+ break;
+#endif
+ }
+ }
+ freeifaddrs(ifaddrs);
+
+ switch(pai->ai_family) {
+ case AF_INET6:
+ return (seen_inet6);
+ case AF_INET:
+ return (seen_inet);
+ case AF_UNSPEC:
+ if (seen_inet == seen_inet6)
+ return (seen_inet);
+ pai->ai_family = seen_inet ? AF_INET : AF_INET6;
+ return (1);
+ }
+ return (1);
+}
+
+#ifdef INET6
+static int
+is_ifdisabled(char *name)
+{
+ struct in6_ndireq nd;
+ int fd;
+
+ if ((fd = _socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0)) < 0)
+ return (-1);
+ memset(&nd, 0, sizeof(nd));
+ strlcpy(nd.ifname, name, sizeof(nd.ifname));
+ if (_ioctl(fd, SIOCGIFINFO_IN6, &nd) < 0) {
+ _close(fd);
+ return (-1);
+ }
+ _close(fd);
+ return ((nd.ndi.flags & ND6_IFF_IFDISABLED) != 0);
+}
+
+/* convert a string to a scope identifier. XXX: IPv6 specific */
+static int
+ip6_str2scopeid(char *scope, struct sockaddr_in6 *sin6, u_int32_t *scopeid)
+{
+ u_long lscopeid;
+ struct in6_addr *a6;
+ char *ep;
+
+ a6 = &sin6->sin6_addr;
+
+ /* empty scopeid portion is invalid */
+ if (*scope == '\0')
+ return -1;
+
+ if (IN6_IS_ADDR_LINKLOCAL(a6) || IN6_IS_ADDR_MC_LINKLOCAL(a6) ||
+ IN6_IS_ADDR_MC_NODELOCAL(a6)) {
+ /*
+ * We currently assume a one-to-one mapping between links
+ * and interfaces, so we simply use interface indices for
+ * like-local scopes.
+ */
+ *scopeid = if_nametoindex(scope);
+ if (*scopeid == 0)
+ goto trynumeric;
+ return 0;
+ }
+
+ /* still unclear about literal, allow numeric only - placeholder */
+ if (IN6_IS_ADDR_SITELOCAL(a6) || IN6_IS_ADDR_MC_SITELOCAL(a6))
+ goto trynumeric;
+ if (IN6_IS_ADDR_MC_ORGLOCAL(a6))
+ goto trynumeric;
+ else
+ goto trynumeric; /* global */
+
+ /* try to convert to a numeric id as a last resort */
+ trynumeric:
+ errno = 0;
+ lscopeid = strtoul(scope, &ep, 10);
+ *scopeid = (u_int32_t)(lscopeid & 0xffffffffUL);
+ if (errno == 0 && ep && *ep == '\0' && *scopeid == lscopeid)
+ return 0;
+ else
+ return -1;
+}
+#endif
+
+
+#ifdef NS_CACHING
+static int
+addrinfo_id_func(char *buffer, size_t *buffer_size, va_list ap,
+ void *cache_mdata)
+{
+ res_state statp;
+ u_long res_options;
+
+ const int op_id = 0; /* identifies the getaddrinfo for the cache */
+ char *hostname;
+ struct addrinfo *hints;
+
+ char *p;
+ int ai_flags, ai_family, ai_socktype, ai_protocol;
+ size_t desired_size, size;
+
+ statp = __res_state();
+ res_options = statp->options & (RES_RECURSE | RES_DEFNAMES |
+ RES_DNSRCH | RES_NOALIASES | RES_USE_INET6);
+
+ hostname = va_arg(ap, char *);
+ hints = va_arg(ap, struct addrinfo *);
+
+ desired_size = sizeof(res_options) + sizeof(int) + sizeof(int) * 4;
+ if (hostname != NULL) {
+ size = strlen(hostname);
+ desired_size += size + 1;
+ } else
+ size = 0;
+
+ if (desired_size > *buffer_size) {
+ *buffer_size = desired_size;
+ return (NS_RETURN);
+ }
+
+ if (hints == NULL)
+ ai_flags = ai_family = ai_socktype = ai_protocol = 0;
+ else {
+ ai_flags = hints->ai_flags;
+ ai_family = hints->ai_family;
+ ai_socktype = hints->ai_socktype;
+ ai_protocol = hints->ai_protocol;
+ }
+
+ p = buffer;
+ memcpy(p, &res_options, sizeof(res_options));
+ p += sizeof(res_options);
+
+ memcpy(p, &op_id, sizeof(int));
+ p += sizeof(int);
+
+ memcpy(p, &ai_flags, sizeof(int));
+ p += sizeof(int);
+
+ memcpy(p, &ai_family, sizeof(int));
+ p += sizeof(int);
+
+ memcpy(p, &ai_socktype, sizeof(int));
+ p += sizeof(int);
+
+ memcpy(p, &ai_protocol, sizeof(int));
+ p += sizeof(int);
+
+ if (hostname != NULL)
+ memcpy(p, hostname, size);
+
+ *buffer_size = desired_size;
+ return (NS_SUCCESS);
+}
+
+static int
+addrinfo_marshal_func(char *buffer, size_t *buffer_size, void *retval,
+ va_list ap, void *cache_mdata)
+{
+ struct addrinfo *ai, *cai;
+ char *p;
+ size_t desired_size, size, ai_size;
+
+ ai = *((struct addrinfo **)retval);
+
+ desired_size = sizeof(size_t);
+ ai_size = 0;
+ for (cai = ai; cai != NULL; cai = cai->ai_next) {
+ desired_size += sizeof(struct addrinfo) + cai->ai_addrlen;
+ if (cai->ai_canonname != NULL)
+ desired_size += sizeof(size_t) +
+ strlen(cai->ai_canonname);
+ ++ai_size;
+ }
+
+ if (desired_size > *buffer_size) {
+ /* this assignment is here for future use */
+ errno = ERANGE;
+ *buffer_size = desired_size;
+ return (NS_RETURN);
+ }
+
+ memset(buffer, 0, desired_size);
+ p = buffer;
+
+ memcpy(p, &ai_size, sizeof(size_t));
+ p += sizeof(size_t);
+ for (cai = ai; cai != NULL; cai = cai->ai_next) {
+ memcpy(p, cai, sizeof(struct addrinfo));
+ p += sizeof(struct addrinfo);
+
+ memcpy(p, cai->ai_addr, cai->ai_addrlen);
+ p += cai->ai_addrlen;
+
+ if (cai->ai_canonname != NULL) {
+ size = strlen(cai->ai_canonname);
+ memcpy(p, &size, sizeof(size_t));
+ p += sizeof(size_t);
+
+ memcpy(p, cai->ai_canonname, size);
+ p += size;
+ }
+ }
+
+ return (NS_SUCCESS);
+}
+
+static int
+addrinfo_unmarshal_func(char *buffer, size_t buffer_size, void *retval,
+ va_list ap, void *cache_mdata)
+{
+ struct addrinfo new_ai, *result, *sentinel, *lasts;
+
+ char *p;
+ size_t ai_size, ai_i, size;
+
+ p = buffer;
+ memcpy(&ai_size, p, sizeof(size_t));
+ p += sizeof(size_t);
+
+ result = NULL;
+ lasts = NULL;
+ for (ai_i = 0; ai_i < ai_size; ++ai_i) {
+ memcpy(&new_ai, p, sizeof(struct addrinfo));
+ p += sizeof(struct addrinfo);
+ size = new_ai.ai_addrlen + sizeof(struct addrinfo) +
+ _ALIGNBYTES;
+
+ sentinel = calloc(1, size);
+
+ memcpy(sentinel, &new_ai, sizeof(struct addrinfo));
+ sentinel->ai_addr = (struct sockaddr *)_ALIGN((char *)sentinel +
+ sizeof(struct addrinfo));
+
+ memcpy(sentinel->ai_addr, p, new_ai.ai_addrlen);
+ p += new_ai.ai_addrlen;
+
+ if (new_ai.ai_canonname != NULL) {
+ memcpy(&size, p, sizeof(size_t));
+ p += sizeof(size_t);
+
+ sentinel->ai_canonname = calloc(1, size + 1);
+
+ memcpy(sentinel->ai_canonname, p, size);
+ p += size;
+ }
+
+ if (result == NULL) {
+ result = sentinel;
+ lasts = sentinel;
+ } else {
+ lasts->ai_next = sentinel;
+ lasts = sentinel;
+ }
+ }
+
+ *((struct addrinfo **)retval) = result;
+ return (NS_SUCCESS);
+}
+#endif /* NS_CACHING */
+
+#ifdef __rtems__
+static int __dns_getaddrinfo(struct addrinfo **result, ...) {
+ va_list ap;
+ int r;
+ va_start(ap, result);
+ r = _dns_getaddrinfo(result, NULL, ap);
+ va_end(ap);
+ return r;
+}
+#endif /* __rtems__ */
+
+/*
+ * FQDN hostname, DNS lookup
+ */
+static int
+explore_fqdn(const struct addrinfo *pai, const char *hostname,
+ const char *servname, struct addrinfo **res)
+{
+ struct addrinfo *result;
+ struct addrinfo *cur;
+ int error = 0;
+
+#ifndef __rtems__
+#ifdef NS_CACHING
+ static const nss_cache_info cache_info =
+ NS_COMMON_CACHE_INFO_INITIALIZER(
+ hosts, NULL, addrinfo_id_func, addrinfo_marshal_func,
+ addrinfo_unmarshal_func);
+#endif
+ static const ns_dtab dtab[] = {
+ NS_FILES_CB(_files_getaddrinfo, NULL)
+ { NSSRC_DNS, _dns_getaddrinfo, NULL }, /* force -DHESIOD */
+ NS_NIS_CB(_yp_getaddrinfo, NULL)
+#ifdef NS_CACHING
+ NS_CACHE_CB(&cache_info)
+#endif
+ { 0 }
+ };
+#endif /* __rtems__ */
+ result = NULL;
+
+ /*
+ * if the servname does not match socktype/protocol, ignore it.
+ */
+ if (get_portmatch(pai, servname) != 0)
+ return 0;
+
+#ifndef __rtems__
+ switch (_nsdispatch(&result, dtab, NSDB_HOSTS, "getaddrinfo",
+ default_dns_files, hostname, pai)) {
+#else /* __rtems__ */
+ switch (__dns_getaddrinfo(&result, hostname)) {
+#endif /* __rtems__ */
+ case NS_TRYAGAIN:
+ error = EAI_AGAIN;
+ goto free;
+ case NS_UNAVAIL:
+ error = EAI_FAIL;
+ goto free;
+ case NS_NOTFOUND:
+ error = EAI_NONAME;
+ goto free;
+ case NS_SUCCESS:
+ error = 0;
+ for (cur = result; cur; cur = cur->ai_next) {
+ GET_PORT(cur, servname);
+ /* canonname should be filled already */
+ }
+ break;
+ }
+
+ *res = result;
+
+ return 0;
+
+free:
+ if (result)
+ freeaddrinfo(result);
+ return error;
+}
+
+#ifdef DEBUG
+static const char AskedForGot[] =
+ "gethostby*.getanswer: asked for \"%s\", got \"%s\"";
+#endif
+
+static struct addrinfo *
+getanswer(const querybuf *answer, int anslen, const char *qname, int qtype,
+ const struct addrinfo *pai, res_state res)
+{
+ struct addrinfo sentinel, *cur;
+ struct addrinfo ai;
+ const struct afd *afd;
+ char *canonname;
+ const HEADER *hp;
+ const u_char *cp;
+ int n;
+ const u_char *eom;
+ char *bp, *ep;
+ int type, class, ancount, qdcount;
+ int haveanswer, had_error;
+ char tbuf[MAXDNAME];
+ int (*name_ok)(const char *);
+ char hostbuf[8*1024];
+
+ memset(&sentinel, 0, sizeof(sentinel));
+ cur = &sentinel;
+
+ canonname = NULL;
+ eom = answer->buf + anslen;
+ switch (qtype) {
+ case T_A:
+ case T_AAAA:
+ case T_ANY: /*use T_ANY only for T_A/T_AAAA lookup*/
+ name_ok = res_hnok;
+ break;
+ default:
+ return (NULL); /* XXX should be abort(); */
+ }
+ /*
+ * find first satisfactory answer
+ */
+ hp = &answer->hdr;
+ ancount = ntohs(hp->ancount);
+ qdcount = ntohs(hp->qdcount);
+ bp = hostbuf;
+ ep = hostbuf + sizeof hostbuf;
+ cp = answer->buf + HFIXEDSZ;
+ if (qdcount != 1) {
+ RES_SET_H_ERRNO(res, NO_RECOVERY);
+ return (NULL);
+ }
+ n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
+ if ((n < 0) || !(*name_ok)(bp)) {
+ RES_SET_H_ERRNO(res, NO_RECOVERY);
+ return (NULL);
+ }
+ cp += n + QFIXEDSZ;
+ if (qtype == T_A || qtype == T_AAAA || qtype == T_ANY) {
+ /* res_send() has already verified that the query name is the
+ * same as the one we sent; this just gets the expanded name
+ * (i.e., with the succeeding search-domain tacked on).
+ */
+ n = strlen(bp) + 1; /* for the \0 */
+ if (n >= MAXHOSTNAMELEN) {
+ RES_SET_H_ERRNO(res, NO_RECOVERY);
+ return (NULL);
+ }
+ canonname = bp;
+ bp += n;
+ /* The qname can be abbreviated, but h_name is now absolute. */
+ qname = canonname;
+ }
+ haveanswer = 0;
+ had_error = 0;
+ while (ancount-- > 0 && cp < eom && !had_error) {
+ n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
+ if ((n < 0) || !(*name_ok)(bp)) {
+ had_error++;
+ continue;
+ }
+ cp += n; /* name */
+ type = _getshort(cp);
+ cp += INT16SZ; /* type */
+ class = _getshort(cp);
+ cp += INT16SZ + INT32SZ; /* class, TTL */
+ n = _getshort(cp);
+ cp += INT16SZ; /* len */
+ if (class != C_IN) {
+ /* XXX - debug? syslog? */
+ cp += n;
+ continue; /* XXX - had_error++ ? */
+ }
+ if ((qtype == T_A || qtype == T_AAAA || qtype == T_ANY) &&
+ type == T_CNAME) {
+ n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf);
+ if ((n < 0) || !(*name_ok)(tbuf)) {
+ had_error++;
+ continue;
+ }
+ cp += n;
+ /* Get canonical name. */
+ n = strlen(tbuf) + 1; /* for the \0 */
+ if (n > ep - bp || n >= MAXHOSTNAMELEN) {
+ had_error++;
+ continue;
+ }
+ strlcpy(bp, tbuf, ep - bp);
+ canonname = bp;
+ bp += n;
+ continue;
+ }
+ if (qtype == T_ANY) {
+ if (!(type == T_A || type == T_AAAA)) {
+ cp += n;
+ continue;
+ }
+ } else if (type != qtype) {
+#ifdef DEBUG
+ if (type != T_KEY && type != T_SIG &&
+ type != ns_t_dname)
+ syslog(LOG_NOTICE|LOG_AUTH,
+ "gethostby*.getanswer: asked for \"%s %s %s\", got type \"%s\"",
+ qname, p_class(C_IN), p_type(qtype),
+ p_type(type));
+#endif
+ cp += n;
+ continue; /* XXX - had_error++ ? */
+ }
+ switch (type) {
+ case T_A:
+ case T_AAAA:
+ if (strcasecmp(canonname, bp) != 0) {
+#ifdef DEBUG
+ syslog(LOG_NOTICE|LOG_AUTH,
+ AskedForGot, canonname, bp);
+#endif
+ cp += n;
+ continue; /* XXX - had_error++ ? */
+ }
+ if (type == T_A && n != INADDRSZ) {
+ cp += n;
+ continue;
+ }
+ if (type == T_AAAA && n != IN6ADDRSZ) {
+ cp += n;
+ continue;
+ }
+#ifdef FILTER_V4MAPPED
+ if (type == T_AAAA) {
+ struct in6_addr in6;
+ memcpy(&in6, cp, sizeof(in6));
+ if (IN6_IS_ADDR_V4MAPPED(&in6)) {
+ cp += n;
+ continue;
+ }
+ }
+#endif
+ if (!haveanswer) {
+ int nn;
+
+ canonname = bp;
+ nn = strlen(bp) + 1; /* for the \0 */
+ bp += nn;
+ }
+
+ /* don't overwrite pai */
+ ai = *pai;
+ ai.ai_family = (type == T_A) ? AF_INET : AF_INET6;
+ afd = find_afd(ai.ai_family);
+ if (afd == NULL) {
+ cp += n;
+ continue;
+ }
+ cur->ai_next = get_ai(&ai, afd, (const char *)cp);
+ if (cur->ai_next == NULL)
+ had_error++;
+ while (cur && cur->ai_next)
+ cur = cur->ai_next;
+ cp += n;
+ break;
+ default:
+ abort();
+ }
+ if (!had_error)
+ haveanswer++;
+ }
+ if (haveanswer) {
+#if defined(RESOLVSORT)
+ /*
+ * We support only IPv4 address for backward
+ * compatibility against gethostbyname(3).
+ */
+ if (res->nsort && qtype == T_A) {
+ if (addr4sort(&sentinel, res) < 0) {
+ freeaddrinfo(sentinel.ai_next);
+ RES_SET_H_ERRNO(res, NO_RECOVERY);
+ return NULL;
+ }
+ }
+#endif /*RESOLVSORT*/
+ if (!canonname)
+ (void)get_canonname(pai, sentinel.ai_next, qname);
+ else
+ (void)get_canonname(pai, sentinel.ai_next, canonname);
+ RES_SET_H_ERRNO(res, NETDB_SUCCESS);
+ return sentinel.ai_next;
+ }
+
+ /*
+ * We could have walked a CNAME chain, but the ultimate target
+ * may not have what we looked for.
+ */
+ RES_SET_H_ERRNO(res, ntohs(hp->ancount) > 0 ? NO_DATA : NO_RECOVERY);
+ return NULL;
+}
+
+#ifdef RESOLVSORT
+struct addr_ptr {
+ struct addrinfo *ai;
+ int aval;
+};
+
+static int
+addr4sort(struct addrinfo *sentinel, res_state res)
+{
+ struct addrinfo *ai;
+ struct addr_ptr *addrs, addr;
+ struct sockaddr_in *sin;
+ int naddrs, i, j;
+ int needsort = 0;
+
+ if (!sentinel)
+ return -1;
+ naddrs = 0;
+ for (ai = sentinel->ai_next; ai; ai = ai->ai_next)
+ naddrs++;
+ if (naddrs < 2)
+ return 0; /* We don't need sorting. */
+ if ((addrs = malloc(sizeof(struct addr_ptr) * naddrs)) == NULL)
+ return -1;
+ i = 0;
+ for (ai = sentinel->ai_next; ai; ai = ai->ai_next) {
+ sin = (struct sockaddr_in *)ai->ai_addr;
+ for (j = 0; (unsigned)j < res->nsort; j++) {
+ if (res->sort_list[j].addr.s_addr ==
+ (sin->sin_addr.s_addr & res->sort_list[j].mask))
+ break;
+ }
+ addrs[i].ai = ai;
+ addrs[i].aval = j;
+ if (needsort == 0 && i > 0 && j < addrs[i - 1].aval)
+ needsort = i;
+ i++;
+ }
+ if (!needsort) {
+ free(addrs);
+ return 0;
+ }
+
+ while (needsort < naddrs) {
+ for (j = needsort - 1; j >= 0; j--) {
+ if (addrs[j].aval > addrs[j+1].aval) {
+ addr = addrs[j];
+ addrs[j] = addrs[j + 1];
+ addrs[j + 1] = addr;
+ } else
+ break;
+ }
+ needsort++;
+ }
+
+ ai = sentinel;
+ for (i = 0; i < naddrs; ++i) {
+ ai->ai_next = addrs[i].ai;
+ ai = ai->ai_next;
+ }
+ ai->ai_next = NULL;
+ free(addrs);
+ return 0;
+}
+#endif /*RESOLVSORT*/
+
+/*ARGSUSED*/
+static int
+_dns_getaddrinfo(void *rv, void *cb_data, va_list ap)
+{
+ struct addrinfo *ai, ai0;
+ querybuf *buf, *buf2;
+ const char *hostname;
+ const struct addrinfo *pai;
+ struct addrinfo sentinel, *cur;
+ struct res_target q, q2;
+ res_state res;
+
+ ai = NULL;
+
+ hostname = va_arg(ap, char *);
+ pai = va_arg(ap, const struct addrinfo *);
+
+ memset(&q, 0, sizeof(q));
+ memset(&q2, 0, sizeof(q2));
+ memset(&sentinel, 0, sizeof(sentinel));
+ cur = &sentinel;
+
+ res = __res_state();
+
+ buf = malloc(sizeof(*buf));
+ if (!buf) {
+ RES_SET_H_ERRNO(res, NETDB_INTERNAL);
+ return NS_NOTFOUND;
+ }
+ buf2 = malloc(sizeof(*buf2));
+ if (!buf2) {
+ free(buf);
+ RES_SET_H_ERRNO(res, NETDB_INTERNAL);
+ return NS_NOTFOUND;
+ }
+
+ if (pai->ai_family == AF_INET6 &&
+ (pai->ai_flags & AI_V4MAPPED) == AI_V4MAPPED) {
+ ai0 = *pai;
+ ai0.ai_family = AF_UNSPEC;
+ pai = &ai0;
+ }
+
+ switch (pai->ai_family) {
+ case AF_UNSPEC:
+ q.name = hostname;
+ q.qclass = C_IN;
+ q.qtype = T_A;
+ q.answer = buf->buf;
+ q.anslen = sizeof(buf->buf);
+ q.next = &q2;
+ q2.name = hostname;
+ q2.qclass = C_IN;
+ q2.qtype = T_AAAA;
+ q2.answer = buf2->buf;
+ q2.anslen = sizeof(buf2->buf);
+ break;
+ case AF_INET:
+ q.name = hostname;
+ q.qclass = C_IN;
+ q.qtype = T_A;
+ q.answer = buf->buf;
+ q.anslen = sizeof(buf->buf);
+ break;
+ case AF_INET6:
+ q.name = hostname;
+ q.qclass = C_IN;
+ q.qtype = T_AAAA;
+ q.answer = buf->buf;
+ q.anslen = sizeof(buf->buf);
+ break;
+ default:
+ free(buf);
+ free(buf2);
+ return NS_UNAVAIL;
+ }
+
+ if ((res->options & RES_INIT) == 0 && res_ninit(res) == -1) {
+ RES_SET_H_ERRNO(res, NETDB_INTERNAL);
+ free(buf);
+ free(buf2);
+ return NS_NOTFOUND;
+ }
+
+ if (res_searchN(hostname, &q, res) < 0) {
+ free(buf);
+ free(buf2);
+ return NS_NOTFOUND;
+ }
+ /* prefer IPv6 */
+ if (q.next) {
+ ai = getanswer(buf2, q2.n, q2.name, q2.qtype, pai, res);
+ if (ai != NULL) {
+ cur->ai_next = ai;
+ while (cur && cur->ai_next)
+ cur = cur->ai_next;
+ }
+ }
+ if (ai == NULL || pai->ai_family != AF_UNSPEC ||
+ (pai->ai_flags & (AI_ALL | AI_V4MAPPED)) != AI_V4MAPPED) {
+ ai = getanswer(buf, q.n, q.name, q.qtype, pai, res);
+ if (ai != NULL)
+ cur->ai_next = ai;
+ }
+ free(buf);
+ free(buf2);
+ if (sentinel.ai_next == NULL)
+ switch (res->res_h_errno) {
+ case HOST_NOT_FOUND:
+ case NO_DATA:
+ return NS_NOTFOUND;
+ case TRY_AGAIN:
+ return NS_TRYAGAIN;
+ default:
+ return NS_UNAVAIL;
+ }
+ *((struct addrinfo **)rv) = sentinel.ai_next;
+ return NS_SUCCESS;
+}
+
+static void
+_sethtent(FILE **hostf)
+{
+ if (!*hostf)
+ *hostf = fopen(_PATH_HOSTS, "re");
+ else
+ rewind(*hostf);
+}
+
+static void
+_endhtent(FILE **hostf)
+{
+ if (*hostf) {
+ (void) fclose(*hostf);
+ *hostf = NULL;
+ }
+}
+
+static struct addrinfo *
+_gethtent(FILE **hostf, const char *name, const struct addrinfo *pai)
+{
+ char *p;
+ char *cp, *tname, *cname;
+ struct addrinfo hints, *res0, *res;
+ int error;
+ const char *addr;
+ char hostbuf[8*1024];
+
+ if (!*hostf && !(*hostf = fopen(_PATH_HOSTS, "re")))
+ return (NULL);
+again:
+ if (!(p = fgets(hostbuf, sizeof hostbuf, *hostf)))
+ return (NULL);
+ if (*p == '#')
+ goto again;
+ cp = strpbrk(p, "#\n");
+ if (cp != NULL)
+ *cp = '\0';
+ if (!(cp = strpbrk(p, " \t")))
+ goto again;
+ *cp++ = '\0';
+ addr = p;
+ cname = NULL;
+ /* if this is not something we're looking for, skip it. */
+ while (cp && *cp) {
+ if (*cp == ' ' || *cp == '\t') {
+ cp++;
+ continue;
+ }
+ tname = cp;
+ if (cname == NULL)
+ cname = cp;
+ if ((cp = strpbrk(cp, " \t")) != NULL)
+ *cp++ = '\0';
+ if (strcasecmp(name, tname) == 0)
+ goto found;
+ }
+ goto again;
+
+found:
+ /* we should not glob socktype/protocol here */
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = pai->ai_family;
+ hints.ai_socktype = SOCK_DGRAM;
+ hints.ai_protocol = 0;
+ hints.ai_flags = AI_NUMERICHOST;
+ if (pai->ai_family == AF_INET6 &&
+ (pai->ai_flags & AI_V4MAPPED) == AI_V4MAPPED)
+ hints.ai_flags |= AI_V4MAPPED;
+ error = getaddrinfo(addr, "0", &hints, &res0);
+ if (error)
+ goto again;
+#ifdef FILTER_V4MAPPED
+ /* XXX should check all items in the chain */
+ if (res0->ai_family == AF_INET6 &&
+ IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)res0->ai_addr)->sin6_addr)) {
+ freeaddrinfo(res0);
+ goto again;
+ }
+#endif
+ for (res = res0; res; res = res->ai_next) {
+ /* cover it up */
+ res->ai_flags = pai->ai_flags;
+ res->ai_socktype = pai->ai_socktype;
+ res->ai_protocol = pai->ai_protocol;
+
+ if (pai->ai_flags & AI_CANONNAME) {
+ if (get_canonname(pai, res, cname) != 0) {
+ freeaddrinfo(res0);
+ goto again;
+ }
+ }
+ }
+ return res0;
+}
+
+static struct addrinfo *
+_getht(FILE **hostf, const char *name, const struct addrinfo *pai,
+ struct addrinfo *cur)
+{
+ struct addrinfo *p;
+
+ while ((p = _gethtent(hostf, name, pai)) != NULL) {
+ cur->ai_next = p;
+ while (cur && cur->ai_next)
+ cur = cur->ai_next;
+ }
+ return (cur);
+}
+
+/*ARGSUSED*/
+static int
+_files_getaddrinfo(void *rv, void *cb_data, va_list ap)
+{
+ const char *name;
+ const struct addrinfo *pai;
+ struct addrinfo sentinel, *cur;
+ FILE *hostf = NULL;
+
+ name = va_arg(ap, char *);
+ pai = va_arg(ap, struct addrinfo *);
+
+ memset(&sentinel, 0, sizeof(sentinel));
+ cur = &sentinel;
+
+ _sethtent(&hostf);
+ if (pai->ai_family == AF_INET6 &&
+ (pai->ai_flags & (AI_ALL | AI_V4MAPPED)) == AI_V4MAPPED) {
+ struct addrinfo ai0 = *pai;
+
+ ai0.ai_flags &= ~AI_V4MAPPED;
+ cur = _getht(&hostf, name, &ai0, cur);
+ if (sentinel.ai_next == NULL) {
+ _sethtent(&hostf);
+ ai0.ai_flags |= AI_V4MAPPED;
+ cur = _getht(&hostf, name, &ai0, cur);
+ }
+ } else
+ cur = _getht(&hostf, name, pai, cur);
+ _endhtent(&hostf);
+
+ *((struct addrinfo **)rv) = sentinel.ai_next;
+ if (sentinel.ai_next == NULL)
+ return NS_NOTFOUND;
+ return NS_SUCCESS;
+}
+
+#ifdef YP
+/*ARGSUSED*/
+static struct addrinfo *
+_yphostent(char *line, const struct addrinfo *pai)
+{
+ struct addrinfo sentinel, *cur;
+ struct addrinfo hints, *res, *res0;
+ int error;
+ char *p = line;
+ const char *addr, *canonname;
+ char *nextline;
+ char *cp;
+
+ addr = canonname = NULL;
+
+ memset(&sentinel, 0, sizeof(sentinel));
+ cur = &sentinel;
+
+nextline:
+ /* terminate line */
+ cp = strchr(p, '\n');
+ if (cp) {
+ *cp++ = '\0';
+ nextline = cp;
+ } else
+ nextline = NULL;
+
+ cp = strpbrk(p, " \t");
+ if (cp == NULL) {
+ if (canonname == NULL)
+ return (NULL);
+ else
+ goto done;
+ }
+ *cp++ = '\0';
+
+ addr = p;
+
+ while (cp && *cp) {
+ if (*cp == ' ' || *cp == '\t') {
+ cp++;
+ continue;
+ }
+ if (!canonname)
+ canonname = cp;
+ if ((cp = strpbrk(cp, " \t")) != NULL)
+ *cp++ = '\0';
+ }
+
+ hints = *pai;
+ hints.ai_flags = AI_NUMERICHOST;
+ if (pai->ai_family == AF_INET6 &&
+ (pai->ai_flags & AI_V4MAPPED) == AI_V4MAPPED)
+ hints.ai_flags |= AI_V4MAPPED;
+ error = getaddrinfo(addr, NULL, &hints, &res0);
+ if (error == 0) {
+ for (res = res0; res; res = res->ai_next) {
+ /* cover it up */
+ res->ai_flags = pai->ai_flags;
+
+ if (pai->ai_flags & AI_CANONNAME)
+ (void)get_canonname(pai, res, canonname);
+ }
+ } else
+ res0 = NULL;
+ if (res0) {
+ cur->ai_next = res0;
+ while (cur && cur->ai_next)
+ cur = cur->ai_next;
+ }
+
+ if (nextline) {
+ p = nextline;
+ goto nextline;
+ }
+
+done:
+ return sentinel.ai_next;
+}
+
+/*ARGSUSED*/
+static int
+_yp_getaddrinfo(void *rv, void *cb_data, va_list ap)
+{
+ struct addrinfo sentinel, *cur;
+ struct addrinfo *ai = NULL;
+ char *ypbuf;
+ int ypbuflen, r;
+ const char *name;
+ const struct addrinfo *pai;
+ char *ypdomain;
+
+ if (_yp_check(&ypdomain) == 0)
+ return NS_UNAVAIL;
+
+ name = va_arg(ap, char *);
+ pai = va_arg(ap, const struct addrinfo *);
+
+ memset(&sentinel, 0, sizeof(sentinel));
+ cur = &sentinel;
+
+ /* ipnodes.byname can hold both IPv4/v6 */
+ r = yp_match(ypdomain, "ipnodes.byname", name,
+ (int)strlen(name), &ypbuf, &ypbuflen);
+ if (r == 0) {
+ ai = _yphostent(ypbuf, pai);
+ if (ai) {
+ cur->ai_next = ai;
+ while (cur && cur->ai_next)
+ cur = cur->ai_next;
+ }
+ free(ypbuf);
+ }
+
+ if (ai != NULL) {
+ struct sockaddr_in6 *sin6;
+
+ switch (ai->ai_family) {
+ case AF_INET:
+ goto done;
+ case AF_INET6:
+ sin6 = (struct sockaddr_in6 *)ai->ai_addr;
+ if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
+ goto done;
+ break;
+ }
+ }
+
+ /* hosts.byname is only for IPv4 (Solaris8) */
+ if (pai->ai_family == AF_UNSPEC || pai->ai_family == AF_INET ||
+ ((pai->ai_family == AF_INET6 &&
+ (pai->ai_flags & AI_V4MAPPED) == AI_V4MAPPED) &&
+ (ai == NULL || (pai->ai_flags & AI_ALL) == AI_ALL))) {
+ r = yp_match(ypdomain, "hosts.byname", name,
+ (int)strlen(name), &ypbuf, &ypbuflen);
+ if (r == 0) {
+ struct addrinfo ai4;
+
+ ai4 = *pai;
+ if (pai->ai_family == AF_UNSPEC)
+ ai4.ai_family = AF_INET;
+ ai = _yphostent(ypbuf, &ai4);
+ if (ai) {
+ cur->ai_next = ai;
+ while (cur && cur->ai_next)
+ cur = cur->ai_next;
+ }
+ free(ypbuf);
+ }
+ }
+
+done:
+ if (sentinel.ai_next == NULL) {
+ RES_SET_H_ERRNO(__res_state(), HOST_NOT_FOUND);
+ return NS_NOTFOUND;
+ }
+ *((struct addrinfo **)rv) = sentinel.ai_next;
+ return NS_SUCCESS;
+}
+#endif
+
+/* resolver logic */
+
+/*
+ * Formulate a normal query, send, and await answer.
+ * Returned answer is placed in supplied buffer "answer".
+ * Perform preliminary check of answer, returning success only
+ * if no error is indicated and the answer count is nonzero.
+ * Return the size of the response on success, -1 on error.
+ * Error number is left in h_errno.
+ *
+ * Caller must parse answer and determine whether it answers the question.
+ */
+static int
+res_queryN(const char *name, struct res_target *target, res_state res)
+{
+ u_char *buf;
+ HEADER *hp;
+ int n;
+ u_int oflags;
+ struct res_target *t;
+ int rcode;
+ int ancount;
+
+ rcode = NOERROR;
+ ancount = 0;
+
+ buf = malloc(MAXPACKET);
+ if (!buf) {
+ RES_SET_H_ERRNO(res, NETDB_INTERNAL);
+ return -1;
+ }
+
+ for (t = target; t; t = t->next) {
+ int class, type;
+ u_char *answer;
+ int anslen;
+
+ hp = (HEADER *)(void *)t->answer;
+
+ /* make it easier... */
+ class = t->qclass;
+ type = t->qtype;
+ answer = t->answer;
+ anslen = t->anslen;
+
+#ifndef __rtems__
+ oflags = res->_flags;
+#else /* __rtems__ */
+ oflags = 0;
+#endif /* __rtems__ */
+
+again:
+ hp->rcode = NOERROR; /* default */
+
+#ifdef DEBUG
+ if (res->options & RES_DEBUG)
+ printf(";; res_query(%s, %d, %d)\n", name, class, type);
+#endif
+
+ n = res_nmkquery(res, QUERY, name, class, type, NULL, 0, NULL,
+ buf, MAXPACKET);
+#ifndef __rtems__
+ if (n > 0 && (res->_flags & RES_F_EDNS0ERR) == 0 &&
+ (res->options & (RES_USE_EDNS0|RES_USE_DNSSEC)) != 0U)
+ n = res_nopt(res, n, buf, MAXPACKET, anslen);
+#endif /* __rtems__ */
+ if (n <= 0) {
+#ifdef DEBUG
+ if (res->options & RES_DEBUG)
+ printf(";; res_query: mkquery failed\n");
+#endif
+ free(buf);
+ RES_SET_H_ERRNO(res, NO_RECOVERY);
+ return (n);
+ }
+ n = res_nsend(res, buf, n, answer, anslen);
+ if (n < 0) {
+#ifndef __rtems__
+ /*
+ * if the query choked with EDNS0, retry
+ * without EDNS0
+ */
+ if ((res->options & (RES_USE_EDNS0|RES_USE_DNSSEC))
+ != 0U &&
+ ((oflags ^ res->_flags) & RES_F_EDNS0ERR) != 0) {
+ res->_flags |= RES_F_EDNS0ERR;
+ if (res->options & RES_DEBUG)
+ printf(";; res_nquery: retry without EDNS0\n");
+ goto again;
+ }
+#endif /* __rtems__ */
+ rcode = hp->rcode; /* record most recent error */
+#ifdef DEBUG
+ if (res->options & RES_DEBUG)
+ printf(";; res_query: send error\n");
+#endif
+ continue;
+ }
+
+ if (n > anslen)
+ hp->rcode = FORMERR; /* XXX not very informative */
+ if (hp->rcode != NOERROR || ntohs(hp->ancount) == 0) {
+ rcode = hp->rcode; /* record most recent error */
+#ifdef DEBUG
+ if (res->options & RES_DEBUG)
+ printf(";; rcode = %u, ancount=%u\n", hp->rcode,
+ ntohs(hp->ancount));
+#endif
+ continue;
+ }
+
+ ancount += ntohs(hp->ancount);
+
+ t->n = n;
+ }
+
+ free(buf);
+
+ if (ancount == 0) {
+ switch (rcode) {
+ case NXDOMAIN:
+ RES_SET_H_ERRNO(res, HOST_NOT_FOUND);
+ break;
+ case SERVFAIL:
+ RES_SET_H_ERRNO(res, TRY_AGAIN);
+ break;
+ case NOERROR:
+ RES_SET_H_ERRNO(res, NO_DATA);
+ break;
+ case FORMERR:
+ case NOTIMP:
+ case REFUSED:
+ default:
+ RES_SET_H_ERRNO(res, NO_RECOVERY);
+ break;
+ }
+ return (-1);
+ }
+ return (ancount);
+}
+
+/*
+ * Formulate a normal query, send, and retrieve answer in supplied buffer.
+ * Return the size of the response on success, -1 on error.
+ * If enabled, implement search rules until answer or unrecoverable failure
+ * is detected. Error code, if any, is left in h_errno.
+ */
+static int
+res_searchN(const char *name, struct res_target *target, res_state res)
+{
+ const char *cp, * const *domain;
+ HEADER *hp = (HEADER *)(void *)target->answer; /*XXX*/
+ u_int dots;
+ int trailing_dot, ret, saved_herrno;
+ int got_nodata = 0, got_servfail = 0, root_on_list = 0;
+ int tried_as_is = 0;
+ int searched = 0;
+ char abuf[MAXDNAME];
+
+ errno = 0;
+ RES_SET_H_ERRNO(res, HOST_NOT_FOUND); /* default, if we never query */
+ dots = 0;
+ for (cp = name; *cp; cp++)
+ dots += (*cp == '.');
+ trailing_dot = 0;
+ if (cp > name && *--cp == '.')
+ trailing_dot++;
+
+#ifndef __rtems__
+ /*
+ * if there aren't any dots, it could be a user-level alias
+ */
+ if (!dots &&
+ (cp = res_hostalias(res, name, abuf, sizeof(abuf))) != NULL)
+ return (res_queryN(cp, target, res));
+#endif /* __rtems__ */
+
+ /*
+ * If there are enough dots in the name, let's just give it a
+ * try 'as is'. The threshold can be set with the "ndots" option.
+ * Also, query 'as is', if there is a trailing dot in the name.
+ */
+ saved_herrno = -1;
+ if (dots >= res->ndots || trailing_dot) {
+ ret = res_querydomainN(name, NULL, target, res);
+ if (ret > 0 || trailing_dot)
+ return (ret);
+ if (errno == ECONNREFUSED) {
+ RES_SET_H_ERRNO(res, TRY_AGAIN);
+ return (-1);
+ }
+ switch (res->res_h_errno) {
+ case NO_DATA:
+ case HOST_NOT_FOUND:
+ break;
+ case TRY_AGAIN:
+ if (hp->rcode == SERVFAIL)
+ break;
+ /* FALLTHROUGH */
+ default:
+ return (-1);
+ }
+ saved_herrno = res->res_h_errno;
+ tried_as_is++;
+ }
+
+ /*
+ * We do at least one level of search if
+ * - there is no dot and RES_DEFNAME is set, or
+ * - there is at least one dot, there is no trailing dot,
+ * and RES_DNSRCH is set.
+ */
+ if ((!dots && (res->options & RES_DEFNAMES)) ||
+ (dots && !trailing_dot && (res->options & RES_DNSRCH))) {
+ int done = 0;
+
+ for (domain = (const char * const *)res->dnsrch;
+ *domain && !done;
+ domain++) {
+ searched = 1;
+
+ if (domain[0][0] == '\0' ||
+ (domain[0][0] == '.' && domain[0][1] == '\0'))
+ root_on_list++;
+
+ if (root_on_list && tried_as_is)
+ continue;
+
+ ret = res_querydomainN(name, *domain, target, res);
+ if (ret > 0)
+ return (ret);
+
+ /*
+ * If no server present, give up.
+ * If name isn't found in this domain,
+ * keep trying higher domains in the search list
+ * (if that's enabled).
+ * On a NO_DATA error, keep trying, otherwise
+ * a wildcard entry of another type could keep us
+ * from finding this entry higher in the domain.
+ * If we get some other error (negative answer or
+ * server failure), then stop searching up,
+ * but try the input name below in case it's
+ * fully-qualified.
+ */
+ if (errno == ECONNREFUSED) {
+ RES_SET_H_ERRNO(res, TRY_AGAIN);
+ return (-1);
+ }
+
+ switch (res->res_h_errno) {
+ case NO_DATA:
+ got_nodata++;
+ /* FALLTHROUGH */
+ case HOST_NOT_FOUND:
+ /* keep trying */
+ break;
+ case TRY_AGAIN:
+ got_servfail++;
+ if (hp->rcode == SERVFAIL) {
+ /* try next search element, if any */
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ /* anything else implies that we're done */
+ done++;
+ }
+ /*
+ * if we got here for some reason other than DNSRCH,
+ * we only wanted one iteration of the loop, so stop.
+ */
+ if (!(res->options & RES_DNSRCH))
+ done++;
+ }
+ }
+
+ switch (res->res_h_errno) {
+ case NO_DATA:
+ case HOST_NOT_FOUND:
+ break;
+ case TRY_AGAIN:
+ if (hp->rcode == SERVFAIL)
+ break;
+ /* FALLTHROUGH */
+ default:
+ goto giveup;
+ }
+
+ /*
+ * If the query has not already been tried as is then try it
+ * unless RES_NOTLDQUERY is set and there were no dots.
+ */
+ if ((dots || !searched || !(res->options & RES_NOTLDQUERY)) &&
+ !(tried_as_is || root_on_list)) {
+ ret = res_querydomainN(name, NULL, target, res);
+ if (ret > 0)
+ return (ret);
+ }
+
+ /*
+ * if we got here, we didn't satisfy the search.
+ * if we did an initial full query, return that query's h_errno
+ * (note that we wouldn't be here if that query had succeeded).
+ * else if we ever got a nodata, send that back as the reason.
+ * else send back meaningless h_errno, that being the one from
+ * the last DNSRCH we did.
+ */
+giveup:
+ if (saved_herrno != -1)
+ RES_SET_H_ERRNO(res, saved_herrno);
+ else if (got_nodata)
+ RES_SET_H_ERRNO(res, NO_DATA);
+ else if (got_servfail)
+ RES_SET_H_ERRNO(res, TRY_AGAIN);
+ return (-1);
+}
+
+/*
+ * Perform a call on res_query on the concatenation of name and domain,
+ * removing a trailing dot from name if domain is NULL.
+ */
+static int
+res_querydomainN(const char *name, const char *domain,
+ struct res_target *target, res_state res)
+{
+ char nbuf[MAXDNAME];
+ const char *longname = nbuf;
+ size_t n, d;
+
+#ifdef DEBUG
+ if (res->options & RES_DEBUG)
+ printf(";; res_querydomain(%s, %s)\n",
+ name, domain?domain:"<Nil>");
+#endif
+ if (domain == NULL) {
+ /*
+ * Check for trailing '.';
+ * copy without '.' if present.
+ */
+ n = strlen(name);
+ if (n >= MAXDNAME) {
+ RES_SET_H_ERRNO(res, NO_RECOVERY);
+ return (-1);
+ }
+ if (n > 0 && name[--n] == '.') {
+ strncpy(nbuf, name, n);
+ nbuf[n] = '\0';
+ } else
+ longname = name;
+ } else {
+ n = strlen(name);
+ d = strlen(domain);
+ if (n + d + 1 >= MAXDNAME) {
+ RES_SET_H_ERRNO(res, NO_RECOVERY);
+ return (-1);
+ }
+ snprintf(nbuf, sizeof(nbuf), "%s.%s", name, domain);
+ }
+ return (res_queryN(longname, target, res));
+}
diff --git a/libc/nsswitch.h b/libc/nsswitch.h
new file mode 100644
index 0000000..f713129
--- /dev/null
+++ b/libc/nsswitch.h
@@ -0,0 +1,246 @@
+/* $NetBSD: nsswitch.h,v 1.6 1999/01/26 01:04:07 lukem Exp $ */
+/* $FreeBSD$ */
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-NetBSD
+ *
+ * Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Luke Mewburn.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifndef _NSSWITCH_H
+#define _NSSWITCH_H 1
+
+#include <sys/types.h>
+#include <stdarg.h>
+
+#define NSS_MODULE_INTERFACE_VERSION 1
+
+#ifndef _PATH_NS_CONF
+#define _PATH_NS_CONF "/etc/nsswitch.conf"
+#endif
+
+/* NSS source actions */
+#define NS_ACTION_CONTINUE 0 /* try the next source */
+#define NS_ACTION_RETURN 1 /* look no further */
+
+#define NS_SUCCESS (1<<0) /* entry was found */
+#define NS_UNAVAIL (1<<1) /* source not responding, or corrupt */
+#define NS_NOTFOUND (1<<2) /* source responded 'no such entry' */
+#define NS_TRYAGAIN (1<<3) /* source busy, may respond to retry */
+#define NS_RETURN (1<<4) /* stop search, e.g. for ERANGE */
+#define NS_TERMINATE (NS_SUCCESS|NS_RETURN) /* flags that end search */
+#define NS_STATUSMASK 0x000000ff /* bitmask to get the status flags */
+
+/*
+ * currently implemented sources
+ */
+#define NSSRC_FILES "files" /* local files */
+#define NSSRC_DB "db" /* database */
+#define NSSRC_DNS "dns" /* DNS; IN for hosts, HS for others */
+#define NSSRC_NIS "nis" /* YP/NIS */
+#define NSSRC_COMPAT "compat" /* passwd,group in YP compat mode */
+#define NSSRC_CACHE "cache" /* nscd daemon */
+#define NSSRC_FALLBACK "__fallback" /* internal fallback source */
+
+/*
+ * currently implemented databases
+ */
+#define NSDB_HOSTS "hosts"
+#define NSDB_GROUP "group"
+#define NSDB_GROUP_COMPAT "group_compat"
+#define NSDB_NETGROUP "netgroup"
+#define NSDB_NETWORKS "networks"
+#define NSDB_PASSWD "passwd"
+#define NSDB_PASSWD_COMPAT "passwd_compat"
+#define NSDB_SHELLS "shells"
+#define NSDB_SERVICES "services"
+#define NSDB_SERVICES_COMPAT "services_compat"
+#define NSDB_SSH_HOSTKEYS "ssh_hostkeys"
+#define NSDB_PROTOCOLS "protocols"
+#define NSDB_RPC "rpc"
+
+/*
+ * suggested databases to implement
+ */
+#define NSDB_ALIASES "aliases"
+#define NSDB_AUTH "auth"
+#define NSDB_AUTOMOUNT "automount"
+#define NSDB_BOOTPARAMS "bootparams"
+#define NSDB_ETHERS "ethers"
+#define NSDB_EXPORTS "exports"
+#define NSDB_NETMASKS "netmasks"
+#define NSDB_PHONES "phones"
+#define NSDB_PRINTCAP "printcap"
+#define NSDB_REMOTE "remote"
+#define NSDB_SENDMAILVARS "sendmailvars"
+#define NSDB_TERMCAP "termcap"
+#define NSDB_TTYS "ttys"
+
+/*
+ * ns_dtab `method' function signature.
+ */
+typedef int (*nss_method)(void *_retval, void *_mdata, va_list _ap);
+
+/*
+ * Macro for generating method prototypes.
+ */
+#define NSS_METHOD_PROTOTYPE(method) \
+ int method(void *, void *, va_list)
+
+/*
+ * ns_dtab - `nsswitch dispatch table'
+ * Contains an entry for each source and the appropriate function to
+ * call. ns_dtabs are used in the nsdispatch() API in order to allow
+ * the application to override built-in actions.
+ */
+typedef struct _ns_dtab {
+ const char *src; /* Source this entry implements */
+ nss_method method; /* Method to be called */
+ void *mdata; /* Data passed to method */
+} ns_dtab;
+
+/*
+ * macros to help build an ns_dtab[]
+ */
+#define NS_FILES_CB(F,C) { NSSRC_FILES, F, C },
+#define NS_COMPAT_CB(F,C) { NSSRC_COMPAT, F, C },
+#define NS_FALLBACK_CB(F) { NSSRC_FALLBACK, F, NULL },
+
+#ifdef HESIOD
+# define NS_DNS_CB(F,C) { NSSRC_DNS, F, C },
+#else
+# define NS_DNS_CB(F,C)
+#endif
+
+#ifdef YP
+# define NS_NIS_CB(F,C) { NSSRC_NIS, F, C },
+#else
+# define NS_NIS_CB(F,C)
+#endif
+
+/*
+ * ns_src - `nsswitch source'
+ * used by the nsparser routines to store a mapping between a source
+ * and its dispatch control flags for a given database.
+ */
+typedef struct _ns_src {
+ const char *name;
+ u_int32_t flags;
+} ns_src;
+
+
+/*
+ * default sourcelist (if nsswitch.conf is missing, corrupt,
+ * or the requested database doesn't have an entry.
+ */
+extern const ns_src __nsdefaultsrc[];
+
+/*
+ * ns_mtab - NSS method table
+ * An NSS module provides a mapping from (database name, method name)
+ * tuples to the nss_method and associated data.
+ */
+typedef struct _ns_mtab {
+ const char *database;
+ const char *name;
+ nss_method method;
+ void *mdata;
+} ns_mtab;
+
+/*
+ * NSS module de-registration, called at module unload.
+ */
+typedef void (*nss_module_unregister_fn)(ns_mtab *, unsigned int);
+
+/*
+ * NSS module registration, called at module load.
+ */
+typedef ns_mtab *(*nss_module_register_fn)(const char *, unsigned int *,
+ nss_module_unregister_fn *);
+
+/*
+ * Many NSS interfaces follow the getXXnam, getXXid, getXXent pattern.
+ * Developers are encouraged to use nss_lookup_type where approriate.
+ */
+enum nss_lookup_type {
+ nss_lt_name = 1,
+ nss_lt_id = 2,
+ nss_lt_all = 3
+};
+
+#ifdef _NS_PRIVATE
+/*
+ * private data structures for back-end nsswitch implementation
+ */
+
+/*
+ * ns_dbt - `nsswitch database thang'
+ * for each database in /etc/nsswitch.conf there is a ns_dbt, with its
+ * name and a list of ns_src's containing the source information.
+ */
+typedef struct _ns_dbt {
+ const char *name; /* name of database */
+ ns_src *srclist; /* list of sources */
+ int srclistsize; /* size of srclist */
+} ns_dbt;
+
+/*
+ * ns_mod - NSS module
+ */
+typedef struct _ns_mod {
+ char *name; /* module name */
+ void *handle; /* handle from dlopen */
+ ns_mtab *mtab; /* method table */
+ unsigned int mtabsize; /* count of entries in method table */
+ nss_module_unregister_fn unregister; /* called to unload module */
+} ns_mod;
+
+#endif /* _NS_PRIVATE */
+
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+extern int nsdispatch(void *, const ns_dtab [], const char *,
+ const char *, const ns_src [], ...);
+
+#ifdef _NS_PRIVATE
+extern void _nsdbtaddsrc(ns_dbt *, const ns_src *);
+extern void _nsdbtput(const ns_dbt *);
+extern void _nsyyerror(const char *);
+extern int _nsyylex(void);
+extern int _nsyyparse(void);
+extern int _nsyylineno;
+#ifdef _NSS_DEBUG
+extern void _nsdbtdump(const ns_dbt *);
+#endif
+#endif /* _NS_PRIVATE */
+
+__END_DECLS
+
+#endif /* !_NSSWITCH_H */
diff --git a/libc/vars.c b/libc/vars.c
new file mode 100644
index 0000000..5bcfb9f
--- /dev/null
+++ b/libc/vars.c
@@ -0,0 +1,47 @@
+/* $KAME: vars.c,v 1.2 2001/08/20 02:32:41 itojun Exp $ */
+
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <netinet/in.h>
+
+/*
+ * Definitions of some costant IPv6 addresses.
+ */
+const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
+const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
+const struct in6_addr in6addr_nodelocal_allnodes = IN6ADDR_NODELOCAL_ALLNODES_INIT;
+const struct in6_addr in6addr_linklocal_allnodes = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
+
diff --git a/net/if_nametoindex.c b/net/if_nametoindex.c
new file mode 100644
index 0000000..2966078
--- /dev/null
+++ b/net/if_nametoindex.c
@@ -0,0 +1,111 @@
+/* $KAME: if_nametoindex.c,v 1.6 2000/11/24 08:18:54 itojun Exp $ */
+
+/*-
+ * SPDX-License-Identifier: BSD-1-Clause
+ *
+ * Copyright (c) 1997, 2000
+ * Berkeley Software Design, Inc. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``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 Berkeley Software Design, Inc. 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.
+ *
+ * BSDI Id: if_nametoindex.c,v 2.3 2000/04/17 22:38:05 dab Exp
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#ifndef __rtems__
+#include "namespace.h"
+#endif /* __rtems__ */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <ifaddrs.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#ifndef __rtems__
+#include "un-namespace.h"
+#else /* __rtems__ */
+#define _socket socket
+#define _ioctl ioctl
+#define _close close
+#define LLINDEX(s) ((s)->sdl_index)
+#endif /* __rtems__ */
+
+/*
+ * From RFC 2553:
+ *
+ * 4.1 Name-to-Index
+ *
+ *
+ * The first function maps an interface name into its corresponding
+ * index.
+ *
+ * #include <net/if.h>
+ *
+ * unsigned int if_nametoindex(const char *ifname);
+ *
+ * If the specified interface name does not exist, the return value is
+ * 0, and errno is set to ENXIO. If there was a system error (such as
+ * running out of memory), the return value is 0 and errno is set to the
+ * proper value (e.g., ENOMEM).
+ */
+
+unsigned int
+if_nametoindex(const char *ifname)
+{
+ int s;
+ struct ifreq ifr;
+ struct ifaddrs *ifaddrs, *ifa;
+ unsigned int ni;
+
+ s = _socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+ if (s != -1) {
+ memset(&ifr, 0, sizeof(ifr));
+ strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ if (_ioctl(s, SIOCGIFINDEX, &ifr) != -1) {
+ _close(s);
+ return (ifr.ifr_index);
+ }
+ _close(s);
+ }
+
+ if (getifaddrs(&ifaddrs) < 0)
+ return(0);
+
+ ni = 0;
+
+ for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr &&
+ ifa->ifa_addr->sa_family == AF_LINK &&
+ strcmp(ifa->ifa_name, ifname) == 0) {
+ ni = LLINDEX((struct sockaddr_dl*)ifa->ifa_addr);
+ break;
+ }
+ }
+
+ freeifaddrs(ifaddrs);
+ if (!ni)
+ errno = ENXIO;
+ return(ni);
+}
diff --git a/netsources.py b/netsources.py
index 9f1b7ff..54dbbf1 100644
--- a/netsources.py
+++ b/netsources.py
@@ -30,8 +30,9 @@ class source:
network = [
# rtems
'rtems/mkrootfs.c',
- 'rtems/rtems_bootp.c',
'rtems/rtems-bsd-iface.c',
+ 'rtems/rtems-kernel-program.c',
+ 'rtems/rtems_bootp.c',
'rtems/rtems_bsdnet_malloc_starvation.c',
'rtems/rtems_dhcp.c',
'rtems/rtems_dhcp_failsafe.c',
@@ -74,6 +75,7 @@ class source:
'net/if.c',
'net/if_ethersubr.c',
'net/if_loop.c',
+ 'net/if_nametoindex.c',
'net/if_ppp.c',
'net/ppp_tty.c',
'net/radix.c',
@@ -166,6 +168,8 @@ class source:
'lib/syslog.c',
# libc
'libc/base64.c',
+ 'libc/gai_strerror.c',
+ 'libc/getaddrinfo.c',
'libc/gethostbydns.c',
'libc/gethostbyht.c',
'libc/gethostbynis.c',
@@ -214,6 +218,7 @@ class source:
'libc/res_stubs.c',
'libc/res_update.c',
'libc/send.c',
+ 'libc/vars.c',
# libtest
'libtest/testbeginend.c',
'libtest/testbusy.c',
diff --git a/resolv.h b/resolv.h
index 06d3a55..770baed 100644
--- a/resolv.h
+++ b/resolv.h
@@ -1,7 +1,7 @@
/*
* Copyright (c) 1983, 1987, 1989
* The Regents of the University of California. All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -131,6 +131,7 @@ struct __res_state {
struct in_addr addr;
u_int32_t mask;
} sort_list[MAXRESOLVSORT];
+ int res_h_errno; /*%< last one set for this context */
char pad[72]; /* on an i386 this means 512b total */
};
diff --git a/rtems/rtems-kernel-program.c b/rtems/rtems-kernel-program.c
new file mode 100644
index 0000000..6dd8028
--- /dev/null
+++ b/rtems/rtems-kernel-program.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2022 On-Line Applications Research Corporation (OAR)
+ * Written by Kinsey Moore <kinsey.moore at oarcorp.com>
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ */
+
+#include <machine/rtems-bsd-kernel-space.h>
+#include <machine/rtems-bsd-thread.h>
+
+#include <sys/types.h>
+#include <sys/kernel.h>
+
+#include <stdio.h>
+
+#include <rtems/extension.h>
+#include <rtems/score/percpu.h>
+#include <rtems/score/thread.h>
+#include <rtems/sysinit.h>
+
+static size_t rtems_bsd_extension_index;
+
+static const rtems_extensions_table rtems_bsd_extensions = {};
+
+/*
+ * This must only be run after the system has become multithreading such as in
+ * Init(). This must not be run as part of normal RTEMS initialization as part
+ * of a SYSINIT call.
+ */
+void rtems_bsd_compat_initialize(void)
+{
+ rtems_id ext_id;
+ rtems_status_code sc;
+
+ sc = rtems_extension_create(
+ BSD_TASK_NAME,
+ &rtems_bsd_extensions,
+ &ext_id
+ );
+ if (sc != RTEMS_SUCCESSFUL) {
+ printf("%s: cannot create extension\n", __func__);
+ rtems_task_suspend(RTEMS_SELF);
+ rtems_fatal_error_occurred(0xdeadbeef);
+ }
+
+ rtems_bsd_extension_index = rtems_object_id_get_index(ext_id);
+}
+
+static struct rtems_bsd_program_control **
+rtems_bsd_get_bsd_extension_ptr(void)
+{
+ Thread_Control *executing = _Thread_Get_executing();
+ return ( struct rtems_bsd_program_control ** )&executing->extensions[rtems_bsd_extension_index];
+}
+
+struct rtems_bsd_program_control *
+rtems_bsd_program_get_control_or_null(void)
+{
+ return *rtems_bsd_get_bsd_extension_ptr();
+}
+
+int
+rtems_bsd_program_set_control(struct rtems_bsd_program_control *prog_ctrl)
+{
+ *rtems_bsd_get_bsd_extension_ptr() = prog_ctrl;
+ return 0;
+}
diff --git a/rtems_waf b/rtems_waf
index 2c15b90..68654b4 160000
--- a/rtems_waf
+++ b/rtems_waf
@@ -1 +1 @@
-Subproject commit 2c15b90de5c369aa78cd2252a50bba677e9b13f3
+Subproject commit 68654b4f995382765605dc16917baad4bdbf7f7c
diff --git a/testsuites/resolve/getaddrinfo_test.c b/testsuites/resolve/getaddrinfo_test.c
new file mode 100644
index 0000000..6674c3c
--- /dev/null
+++ b/testsuites/resolve/getaddrinfo_test.c
@@ -0,0 +1,573 @@
+/*-
+ * Copyright (c) 2006 Michael Bushkov <bushman at freebsd.org>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <errno.h>
+#include <netdb.h>
+#include <resolv.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifndef __rtems__
+#include <stringlist.h>
+#endif /* __rtems__ */
+#include <unistd.h>
+
+#ifndef __rtems__
+#include <atf-c.h>
+
+#include "freebsd_test_suite/macros.h"
+#include "testutil.h"
+#endif /* __rtems__ */
+
+enum test_methods {
+ TEST_GETADDRINFO,
+ TEST_BUILD_SNAPSHOT
+};
+
+static struct addrinfo hints;
+static enum test_methods method = TEST_GETADDRINFO;
+
+#ifndef __rtems__
+DECLARE_TEST_DATA(addrinfo)
+DECLARE_TEST_FILE_SNAPSHOT(addrinfo)
+DECLARE_2PASS_TEST(addrinfo)
+#endif /* __rtems__ */
+
+static void clone_addrinfo(struct addrinfo *, struct addrinfo const *);
+static int compare_addrinfo(struct addrinfo *, struct addrinfo *, void *);
+static void dump_addrinfo(struct addrinfo *);
+
+static void sdump_addrinfo(struct addrinfo *, char *, size_t);
+
+#ifndef __rtems__
+IMPLEMENT_TEST_DATA(addrinfo)
+IMPLEMENT_TEST_FILE_SNAPSHOT(addrinfo)
+IMPLEMENT_2PASS_TEST(addrinfo)
+#else
+#include <assert.h>
+#define ATF_REQUIRE(e) assert(e)
+#define ATF_REQUIRE_MSG(e, f, ...) assert(e)
+#endif /* __rtems__ */
+
+static void
+clone_addrinfo(struct addrinfo *dest, struct addrinfo const *src)
+{
+
+ ATF_REQUIRE(dest != NULL);
+ ATF_REQUIRE(src != NULL);
+
+ memcpy(dest, src, sizeof(struct addrinfo));
+ if (src->ai_canonname != NULL)
+ dest->ai_canonname = strdup(src->ai_canonname);
+
+ if (src->ai_addr != NULL) {
+ dest->ai_addr = malloc(src->ai_addrlen);
+ ATF_REQUIRE(dest->ai_addr != NULL);
+ memcpy(dest->ai_addr, src->ai_addr, src->ai_addrlen);
+ }
+
+ if (src->ai_next != NULL) {
+ dest->ai_next = malloc(sizeof(struct addrinfo));
+ ATF_REQUIRE(dest->ai_next != NULL);
+ clone_addrinfo(dest->ai_next, src->ai_next);
+ }
+}
+
+static int
+compare_addrinfo_(struct addrinfo *ai1, struct addrinfo *ai2)
+{
+
+ if ((ai1 == NULL) || (ai2 == NULL))
+ return (-1);
+
+ if (ai1->ai_flags != ai2->ai_flags ||
+ ai1->ai_family != ai2->ai_family ||
+ ai1->ai_socktype != ai2->ai_socktype ||
+ ai1->ai_protocol != ai2->ai_protocol ||
+ ai1->ai_addrlen != ai2->ai_addrlen ||
+ ((ai1->ai_addr == NULL || ai2->ai_addr == NULL) &&
+ ai1->ai_addr != ai2->ai_addr) ||
+ ((ai1->ai_canonname == NULL || ai2->ai_canonname == NULL) &&
+ ai1->ai_canonname != ai2->ai_canonname))
+ return (-1);
+
+ if (ai1->ai_canonname != NULL &&
+ strcmp(ai1->ai_canonname, ai2->ai_canonname) != 0)
+ return (-1);
+
+ if (ai1->ai_addr != NULL &&
+ memcmp(ai1->ai_addr, ai2->ai_addr, ai1->ai_addrlen) != 0)
+ return (-1);
+
+ if (ai1->ai_next == NULL && ai2->ai_next == NULL)
+ return (0);
+ else
+ return (compare_addrinfo_(ai1->ai_next, ai2->ai_next));
+}
+
+static int
+compare_addrinfo(struct addrinfo *ai1, struct addrinfo *ai2,
+ void *mdata __unused)
+{
+ int rv;
+
+ printf("testing equality of 2 addrinfo structures\n");
+
+ rv = compare_addrinfo_(ai1, ai2);
+
+ if (rv == 0)
+ printf("equal\n");
+ else {
+ dump_addrinfo(ai1);
+ dump_addrinfo(ai2);
+ printf("not equal\n");
+ }
+
+ return (rv);
+}
+
+static void
+free_addrinfo(struct addrinfo *ai)
+{
+ if (ai == NULL)
+ return;
+
+ free(ai->ai_addr);
+ free(ai->ai_canonname);
+ free_addrinfo(ai->ai_next);
+}
+
+void
+sdump_addrinfo(struct addrinfo *ai, char *buffer, size_t buflen)
+{
+ int written, i;
+
+ written = snprintf(buffer, buflen, "%d %d %d %d %d ",
+ ai->ai_flags, ai->ai_family, ai->ai_socktype, ai->ai_protocol,
+ ai->ai_addrlen);
+ buffer += written;
+ if (written > (int)buflen)
+ return;
+ buflen -= written;
+
+ written = snprintf(buffer, buflen, "%s ",
+ ai->ai_canonname == NULL ? "(null)" : ai->ai_canonname);
+ buffer += written;
+ if (written > (int)buflen)
+ return;
+ buflen -= written;
+
+ if (ai->ai_addr == NULL) {
+ written = snprintf(buffer, buflen, "(null)");
+ buffer += written;
+ if (written > (int)buflen)
+ return;
+ buflen -= written;
+ } else {
+ for (i = 0; i < (int)ai->ai_addrlen; i++) {
+ written = snprintf(buffer, buflen,
+ i + 1 != (int)ai->ai_addrlen ? "%d." : "%d",
+ ((unsigned char *)ai->ai_addr)[i]);
+ buffer += written;
+ if (written > (int)buflen)
+ return;
+ buflen -= written;
+
+ if (buflen == 0)
+ return;
+ }
+ }
+
+ if (ai->ai_next != NULL) {
+ written = snprintf(buffer, buflen, ":");
+ buffer += written;
+ if (written > (int)buflen)
+ return;
+ buflen -= written;
+
+ sdump_addrinfo(ai->ai_next, buffer, buflen);
+ }
+}
+
+void
+dump_addrinfo(struct addrinfo *result)
+{
+ if (result != NULL) {
+ char buffer[2048];
+ sdump_addrinfo(result, buffer, sizeof(buffer));
+ printf("%s\n", buffer);
+ } else
+ printf("(null)\n");
+}
+
+static int
+addrinfo_read_snapshot_addr(char *addr, unsigned char *result, size_t len)
+{
+ char *s, *ps, *ts;
+
+ ps = addr;
+ while ((s = strsep(&ps, ".")) != NULL) {
+ if (len == 0)
+ return (-1);
+
+ *result = (unsigned char)strtol(s, &ts, 10);
+ ++result;
+ if (*ts != '\0')
+ return (-1);
+
+ --len;
+ }
+ if (len != 0)
+ return (-1);
+ else
+ return (0);
+}
+
+static int
+addrinfo_read_snapshot_ai(struct addrinfo *ai, char *line)
+{
+ char *s, *ps, *ts;
+ int i, rv, *pi;
+
+ rv = 0;
+ i = 0;
+ ps = line;
+ memset(ai, 0, sizeof(struct addrinfo));
+ while ((s = strsep(&ps, " ")) != NULL) {
+ switch (i) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ pi = &ai->ai_flags + i;
+ *pi = (int)strtol(s, &ts, 10);
+ if (*ts != '\0')
+ goto fin;
+ break;
+ case 4:
+ ai->ai_addrlen = (socklen_t)strtol(s, &ts, 10);
+ if (*ts != '\0')
+ goto fin;
+ break;
+ case 5:
+ if (strcmp(s, "(null)") != 0) {
+ ai->ai_canonname = strdup(s);
+ ATF_REQUIRE(ai->ai_canonname != NULL);
+ }
+ break;
+ case 6:
+ if (strcmp(s, "(null)") != 0) {
+ ai->ai_addr = calloc(1, ai->ai_addrlen);
+ ATF_REQUIRE(ai->ai_addr != NULL);
+ rv = addrinfo_read_snapshot_addr(s,
+ (unsigned char *)ai->ai_addr,
+ ai->ai_addrlen);
+
+ if (rv != 0)
+ goto fin;
+ }
+ break;
+ default:
+ /* NOTE: should not be reachable */
+ rv = -1;
+ goto fin;
+ }
+
+ ++i;
+ }
+
+fin:
+ if (i != 7 || rv != 0) {
+ free_addrinfo(ai);
+ ai = NULL;
+ return (-1);
+ }
+
+ return (0);
+}
+
+static int
+addrinfo_read_snapshot_func(struct addrinfo *ai, char *line)
+{
+ struct addrinfo *ai2;
+ char *s, *ps;
+ int rv;
+
+ printf("1 line read from snapshot:\n%s\n", line);
+
+ rv = 0;
+ ps = line;
+
+ s = strsep(&ps, ":");
+ if (s == NULL)
+ return (-1);
+
+ rv = addrinfo_read_snapshot_ai(ai, s);
+ if (rv != 0)
+ return (-1);
+
+ ai2 = ai;
+ while ((s = strsep(&ps, ":")) != NULL) {
+ ai2->ai_next = calloc(1, sizeof(struct addrinfo));
+ ATF_REQUIRE(ai2->ai_next != NULL);
+
+ rv = addrinfo_read_snapshot_ai(ai2->ai_next, s);
+ if (rv != 0) {
+ free_addrinfo(ai);
+ ai = NULL;
+ return (-1);
+ }
+
+ ai2 = ai2->ai_next;
+ }
+
+ return (0);
+}
+
+static int
+addrinfo_test_correctness(struct addrinfo *ai, void *mdata __unused)
+{
+
+ printf("testing correctness with the following data:\n");
+ dump_addrinfo(ai);
+
+ if (ai == NULL)
+ goto errfin;
+
+ if (!(ai->ai_family >= 0 && ai->ai_family < AF_MAX))
+ goto errfin;
+
+ if (ai->ai_socktype != 0 && ai->ai_socktype != SOCK_STREAM &&
+ ai->ai_socktype != SOCK_DGRAM && ai->ai_socktype != SOCK_RAW)
+ goto errfin;
+
+ if (ai->ai_protocol != 0 && ai->ai_protocol != IPPROTO_UDP &&
+ ai->ai_protocol != IPPROTO_TCP)
+ goto errfin;
+
+#ifndef __rtems__
+ if ((ai->ai_flags & ~(AI_CANONNAME | AI_NUMERICHOST | AI_PASSIVE)) != 0)
+ goto errfin;
+#endif /* __rtems__ */
+
+ if (ai->ai_addrlen != ai->ai_addr->sa_len ||
+ ai->ai_family != ai->ai_addr->sa_family)
+ goto errfin;
+
+ printf("correct\n");
+
+ return (0);
+errfin:
+ printf("incorrect\n");
+
+ return (-1);
+}
+
+int
+addrinfo_read_hostlist_func(struct addrinfo *ai, char *line)
+{
+ struct addrinfo *result;
+ int rv;
+
+ printf("resolving %s: ", line);
+ rv = getaddrinfo(line, NULL, &hints, &result);
+ if (rv == 0) {
+ printf("found\n");
+
+ rv = addrinfo_test_correctness(result, NULL);
+ if (rv != 0) {
+ freeaddrinfo(result);
+ result = NULL;
+ return (rv);
+ }
+
+ clone_addrinfo(ai, result);
+ freeaddrinfo(result);
+ result = NULL;
+ } else {
+ printf("not found\n");
+
+ memset(ai, 0, sizeof(struct addrinfo));
+ }
+ return (0);
+}
+
+#ifndef __rtems__
+void
+run_tests(char *hostlist_file, const char *snapshot_file, int ai_family)
+{
+ struct addrinfo_test_data td, td_snap;
+ char *snapshot_file_copy;
+ int rv;
+
+ if (snapshot_file == NULL)
+ snapshot_file_copy = NULL;
+ else {
+ snapshot_file_copy = strdup(snapshot_file);
+ ATF_REQUIRE(snapshot_file_copy != NULL);
+ }
+
+ memset(&hints, 0, sizeof(struct addrinfo));
+ hints.ai_family = ai_family;
+ hints.ai_flags = AI_CANONNAME;
+
+ if (snapshot_file != NULL)
+ method = TEST_BUILD_SNAPSHOT;
+
+ TEST_DATA_INIT(addrinfo, &td, clone_addrinfo, free_addrinfo);
+ TEST_DATA_INIT(addrinfo, &td_snap, clone_addrinfo, free_addrinfo);
+
+ ATF_REQUIRE_MSG(access(hostlist_file, R_OK) == 0,
+ "can't access the hostlist file %s\n", hostlist_file);
+
+ printf("building host lists from %s\n", hostlist_file);
+
+ rv = TEST_SNAPSHOT_FILE_READ(addrinfo, hostlist_file, &td,
+ addrinfo_read_hostlist_func);
+ if (rv != 0)
+ goto fin;
+
+ if (snapshot_file != NULL) {
+ if (access(snapshot_file, W_OK | R_OK) != 0) {
+ if (errno == ENOENT)
+ method = TEST_BUILD_SNAPSHOT;
+ else {
+ printf("can't access the snapshot "
+ "file %s\n", snapshot_file);
+
+ rv = -1;
+ goto fin;
+ }
+ } else {
+ rv = TEST_SNAPSHOT_FILE_READ(addrinfo, snapshot_file,
+ &td_snap, addrinfo_read_snapshot_func);
+ if (rv != 0) {
+ printf("error reading snapshot file: %s\n",
+ strerror(errno));
+ goto fin;
+ }
+ }
+ }
+
+ switch (method) {
+ case TEST_GETADDRINFO:
+ if (snapshot_file != NULL)
+ ATF_CHECK(DO_2PASS_TEST(addrinfo, &td, &td_snap,
+ compare_addrinfo, NULL) == 0);
+ break;
+ case TEST_BUILD_SNAPSHOT:
+ if (snapshot_file != NULL) {
+ ATF_CHECK(TEST_SNAPSHOT_FILE_WRITE(addrinfo,
+ snapshot_file, &td, sdump_addrinfo) == 0);
+ }
+ break;
+ default:
+ break;
+ }
+
+fin:
+ TEST_DATA_DESTROY(addrinfo, &td_snap);
+ TEST_DATA_DESTROY(addrinfo, &td);
+
+ free(snapshot_file_copy);
+}
+
+#define HOSTLIST_FILE "mach"
+#define RUN_TESTS(tc, snapshot_file, ai_family) do { \
+ char *_hostlist_file; \
+ ATF_REQUIRE(0 < asprintf(&_hostlist_file, "%s/%s", \
+ atf_tc_get_config_var(tc, "srcdir"), HOSTLIST_FILE)); \
+ run_tests(_hostlist_file, snapshot_file, ai_family); \
+ free(_hostlist_file); \
+} while (0)
+
+ATF_TC_WITHOUT_HEAD(pf_unspec);
+ATF_TC_BODY(pf_unspec, tc)
+{
+
+ RUN_TESTS(tc, NULL, AF_UNSPEC);
+}
+
+ATF_TC_WITHOUT_HEAD(pf_unspec_with_snapshot);
+ATF_TC_BODY(pf_unspec_with_snapshot, tc)
+{
+
+ RUN_TESTS(tc, "snapshot_ai", AF_UNSPEC);
+}
+
+ATF_TC_WITHOUT_HEAD(pf_inet);
+ATF_TC_BODY(pf_inet, tc)
+{
+
+ ATF_REQUIRE_FEATURE("inet");
+ RUN_TESTS(tc, NULL, AF_INET);
+}
+
+ATF_TC_WITHOUT_HEAD(pf_inet_with_snapshot);
+ATF_TC_BODY(pf_inet_with_snapshot, tc)
+{
+
+ ATF_REQUIRE_FEATURE("inet");
+ RUN_TESTS(tc, "snapshot_ai4", AF_INET);
+}
+
+ATF_TC_WITHOUT_HEAD(pf_inet6);
+ATF_TC_BODY(pf_inet6, tc)
+{
+
+ ATF_REQUIRE_FEATURE("inet6");
+ RUN_TESTS(tc, NULL, AF_INET6);
+}
+
+ATF_TC_WITHOUT_HEAD(pf_inet6_with_snapshot);
+ATF_TC_BODY(pf_inet6_with_snapshot, tc)
+{
+
+ ATF_REQUIRE_FEATURE("inet6");
+ RUN_TESTS(tc, "snapshot_ai6", AF_INET6);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, pf_unspec);
+ ATF_TP_ADD_TC(tp, pf_unspec_with_snapshot);
+ ATF_TP_ADD_TC(tp, pf_inet);
+ ATF_TP_ADD_TC(tp, pf_inet_with_snapshot);
+ ATF_TP_ADD_TC(tp, pf_inet6);
+ ATF_TP_ADD_TC(tp, pf_inet6_with_snapshot);
+
+ return (atf_no_error());
+}
+#endif /* __rtems__ */
diff --git a/testsuites/resolve/init.c b/testsuites/resolve/init.c
new file mode 100644
index 0000000..beb0e9a
--- /dev/null
+++ b/testsuites/resolve/init.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) 2023 Chris Johns <chris at contemporay.software>. All rights reserved.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <rtems.h>
+#include <rtems/dhcp.h>
+#include <rtems/rtems_bsdnet.h>
+#include <rtems/telnetd.h>
+
+#include <tmacros.h>
+#include <net-legacy-config.h>
+#include <network-config.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <resolv.h>
+
+#define START_SHELL 0
+
+const char rtems_test_name[] = "RESOLVE";
+
+#define MACH_SIZE 45
+static const char* mach[MACH_SIZE] = {
+ "localhost",
+ "anoncvs.cirr.com",
+ "anoncvs.netbsd.se",
+ "antioche.antioche.eu.org",
+ "centaurus.4web.cz",
+ "chur.math.ntnu.no",
+ "console.netbsd.org",
+ "cvs.netbsd.org",
+ "cvsup.netbsd.se",
+ "ftp.chg.ru",
+ "ftp.estpak.ee",
+ "ftp.fsn.hu",
+ "ftp.funet.fi",
+ "ftp.netbsd.org",
+ "ftp.nluug.nl",
+ "ftp.plig.org",
+ "ftp.uni-erlangen.de",
+ "ftp.xgate.co.kr",
+ "gd.tuwien.ac.at",
+ "gort.ludd.luth.se",
+ "irc.warped.net",
+ "knug.youn.co.kr",
+ "mail.jp.netbsd.org",
+ "mail.netbsd.org",
+ "melanoma.cs.rmit.edu.au",
+ "mirror.aarnet.edu.au",
+ "moon.vub.ac.be",
+ "net.bsd.cz",
+ "netbsd.3miasto.net",
+ "netbsd.4ka.mipt.ru",
+ "netbsd.csie.nctu.edu.tw",
+ "netbsd.enderunix.org",
+ "netbsd.ftp.fu-berlin.de",
+ "netbsd.pair.com",
+ "netbsdiso.interoute.net.uk",
+ "netbsdwww.cs.rmit.edu.au",
+ "netbsdwww.interoute.net.uk",
+ "ns.netbsd.org",
+ "skeleton.phys.spbu.ru",
+ "www.en.netbsd.de",
+ "www.netbsd.cl",
+ "www.netbsd.nl",
+ "www.netbsd.org",
+ "www.netbsd.ro",
+ "zeppo.rediris.es"
+};
+
+extern int addrinfo_read_hostlist_func(struct addrinfo *ai, const char *line);
+
+static int resolve_test(void) {
+ struct addrinfo addr;
+ size_t l;
+ int r = 0;
+ printf("getaddrinfo test start\n");
+ for (l = 0; l < MACH_SIZE - 1; ++l) {
+ r = addrinfo_read_hostlist_func(&addr, mach[l]);
+ if (r != 0) {
+ break;
+ }
+ }
+ fflush(stdout);
+ printf("getaddrinfo test finish\n\n\n");
+ sleep(2);
+ return r;
+}
+
+struct rtems_bsdnet_config rtems_bsdnet_config;
+
+static rtems_task Init(rtems_task_argument argument)
+{
+ rtems_status_code sc;
+ int rv;
+
+ TEST_BEGIN();
+
+ rtems_test_assert(rtems_net_legacy_config(&rtems_bsdnet_config));
+
+ rtems_bsdnet_config.domainname = "gemini.edu";
+ rtems_bsdnet_config.name_server[0] = "10.1.5.8";
+
+ rv = rtems_bsdnet_initialize_network();
+ rtems_test_assert(rv == 0);
+
+ rv = resolve_test();
+ rtems_test_assert(rv == 0);
+
+#if START_SHELL
+ sc = rtems_shell_init(
+ "SHLL", /* task name */
+ RTEMS_MINIMUM_STACK_SIZE * 4, /* task stack size */
+ 1, /* task priority */
+ "/dev/console", /* device name */
+ false, /* run forever */
+ true, /* wait for shell to terminate */
+ NULL /* login check function,
+ use NULL to disable a login check */
+ );
+ rtems_test_assert( sc == RTEMS_SUCCESSFUL );
+#endif
+
+ TEST_END();
+ sleep(2);
+ rtems_test_exit(0);
+}
+
+#define CONFIGURE_INIT
+
+#define CONFIGURE_MICROSECONDS_PER_TICK 10000
+
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
+
+#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 32
+
+#define CONFIGURE_MAXIMUM_TASKS 12
+
+#define CONFIGURE_MAXIMUM_POSIX_KEYS 10
+#define CONFIGURE_MAXIMUM_SEMAPHORES 20
+#define CONFIGURE_MAXIMUM_MESSAGE_QUEUES 10
+
+#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_FLOATING_POINT
+
+#define CONFIGURE_UNLIMITED_OBJECTS
+#define CONFIGURE_UNIFIED_WORK_AREAS
+
+#define RTEMS_NETWORKING 1
+#define CONFIGURE_SHELL_COMMANDS_INIT
+#define CONFIGURE_SHELL_COMMANDS_ALL
+#define CONFIGURE_SHELL_COMMANDS_ALL_NETWORKING
+
+#include <rtems/shellconfig.h>
+
+#include <rtems/confdefs.h>
diff --git a/testsuites/resolve/resolve.doc b/testsuites/resolve/resolve.doc
new file mode 100644
index 0000000..d58ef5b
--- /dev/null
+++ b/testsuites/resolve/resolve.doc
@@ -0,0 +1,11 @@
+This file describes the directives and concepts tested by this test set.
+
+test set name: resolve
+
+directives:
+
+ - getaddrinfo
+
+concepts:
+
++ Runs a tests from FreeBSD for getaddrinfo the mach file
diff --git a/testsuites/resolve/resolve.scn b/testsuites/resolve/resolve.scn
new file mode 100644
index 0000000..2014d06
--- /dev/null
+++ b/testsuites/resolve/resolve.scn
@@ -0,0 +1,166 @@
+*** BEGIN OF TEST RESOLVE ***
+*** TEST VERSION: 6.0.0.7e119562ae48d170604d3c82dcf2425a0a1ae3cd
+*** TEST STATE: EXPECTED_PASS
+*** TEST BUILD: RTEMS_POSIX_API
+*** TEST TOOLS: 12.2.1 20230224 (RTEMS 6, RSB 77dc54ce841a04598c64073c217aa9e66df31d8f, Newlib 17ac400)
+dec21140 : found device 'dc1', bus 0x00, dev 0x0e, func 0x00
+dec2114x : unit 1 base address 0xc1042100.
+dec2114x : driver attached
+dec2114x : driver tasks created
+dec2114x : 00:01:af:03:6d:d0 name 'dc1', io 11100, mem c1042100, int 10
+dec2114x: Installing IRQ 10
+getaddrinfo test start
+resolving localhost: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.127.0.0.1.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.127.0.0.1.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.127.0.0.1.0.0.0.0.0.0.0.0
+correct
+resolving anoncvs.cirr.com: not found
+resolving anoncvs.netbsd.se: not found
+resolving antioche.antioche.eu.org: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.132.227.74.11.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.132.227.74.11.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.132.227.74.11.0.0.0.0.0.0.0.0
+correct
+resolving centaurus.4web.cz: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.146.112.61.106.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.146.112.61.106.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.146.112.61.106.0.0.0.0.0.0.0.0
+correct
+resolving chur.math.ntnu.no: not found
+resolving console.netbsd.org: not found
+resolving cvs.netbsd.org: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.199.233.217.197.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.199.233.217.197.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.199.233.217.197.0.0.0.0.0.0.0.0
+correct
+resolving cvsup.netbsd.se: not found
+resolving ftp.chg.ru: not found
+resolving ftp.estpak.ee: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.62.65.42.236.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.62.65.42.236.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.62.65.42.236.0.0.0.0.0.0.0.0
+correct
+resolving ftp.fsn.hu: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.195.228.252.133.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.195.228.252.133.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.195.228.252.133.0.0.0.0.0.0.0.0
+correct
+resolving ftp.funet.fi: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.193.166.3.2.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.193.166.3.2.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.193.166.3.2.0.0.0.0.0.0.0.0
+correct
+resolving ftp.netbsd.org: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.199.233.217.201.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.199.233.217.201.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.199.233.217.201.0.0.0.0.0.0.0.0
+correct
+resolving ftp.nluug.nl: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.145.220.21.40.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.145.220.21.40.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.145.220.21.40.0.0.0.0.0.0.0.0
+correct
+resolving ftp.plig.org: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.188.226.162.120.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.188.226.162.120.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.188.226.162.120.0.0.0.0.0.0.0.0
+correct
+resolving ftp.uni-erlangen.de: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.131.188.12.211.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.131.188.12.211.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.131.188.12.211.0.0.0.0.0.0.0.0
+correct
+resolving ftp.xgate.co.kr: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.203.254.197.172.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.203.254.197.172.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.203.254.197.172.0.0.0.0.0.0.0.0
+correct
+resolving gd.tuwien.ac.at: not found
+resolving gort.ludd.luth.se: not found
+resolving irc.warped.net: not found
+resolving knug.youn.co.kr: not found
+resolving mail.jp.netbsd.org: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.210.148.108.146.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.210.148.108.146.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.210.148.108.146.0.0.0.0.0.0.0.0
+correct
+resolving mail.netbsd.org: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.199.233.217.200.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.199.233.217.200.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.199.233.217.200.0.0.0.0.0.0.0.0
+correct
+resolving melanoma.cs.rmit.edu.au: not found
+resolving mirror.aarnet.edu.au: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.202.158.214.106.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.202.158.214.106.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.202.158.214.106.0.0.0.0.0.0.0.0
+correct
+resolving moon.vub.ac.be: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.134.184.49.5.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.134.184.49.5.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.134.184.49.5.0.0.0.0.0.0.0.0
+correct
+resolving net.bsd.cz: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.94.124.105.4.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.94.124.105.4.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.94.124.105.4.0.0.0.0.0.0.0.0
+correct
+resolving netbsd.3miasto.net: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.104.247.81.52.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.104.247.81.52.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.104.247.81.52.0.0.0.0.0.0.0.0
+correct
+resolving netbsd.4ka.mipt.ru: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.93.175.29.188.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.93.175.29.188.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.93.175.29.188.0.0.0.0.0.0.0.0
+correct
+resolving netbsd.csie.nctu.edu.tw: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.140.113.17.207.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.140.113.17.207.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.140.113.17.207.0.0.0.0.0.0.0.0
+correct
+resolving netbsd.enderunix.org: not found
+resolving netbsd.ftp.fu-berlin.de: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.130.133.3.143.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.130.133.3.143.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.130.133.3.143.0.0.0.0.0.0.0.0
+correct
+resolving netbsd.pair.com: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.216.92.73.137.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.216.92.73.137.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.216.92.73.137.0.0.0.0.0.0.0.0
+correct
+resolving netbsdiso.interoute.net.uk: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.212.23.56.19.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.212.23.56.19.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.212.23.56.19.0.0.0.0.0.0.0.0
+correct
+resolving netbsdwww.cs.rmit.edu.au: not found
+resolving netbsdwww.interoute.net.uk: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.212.23.56.18.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.212.23.56.18.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.212.23.56.18.0.0.0.0.0.0.0.0
+correct
+resolving ns.netbsd.org: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.199.233.217.200.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.199.233.217.200.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.199.233.217.200.0.0.0.0.0.0.0.0
+correct
+resolving skeleton.phys.spbu.ru: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.185.148.210.80.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.185.148.210.80.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.185.148.210.80.0.0.0.0.0.0.0.0
+correct
+resolving www.en.netbsd.de: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.195.22.142.107.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.195.22.142.107.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.195.22.142.107.0.0.0.0.0.0.0.0
+correct
+resolving www.netbsd.cl: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.172.67.129.38.0.0.0.0.0.0.0.0:3162112 2 2 17 16 (null) 16.2.0.0.104.21.1.106.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.172.67.129.38.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.104.21.1.106.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.172.67.129.38.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.104.21.1.106.0.0.0.0.0.0.0.0
+correct
+resolving www.netbsd.nl: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.91.195.241.232.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.91.195.241.232.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.91.195.241.232.0.0.0.0.0.0.0.0
+correct
+resolving www.netbsd.org: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.151.101.65.6.0.0.0.0.0.0.0.0:3162112 2 2 17 16 (null) 16.2.0.0.151.101.1.6.0.0.0.0.0.0.0.0:3162112 2 2 17 16 (null) 16.2.0.0.151.101.193.6.0.0.0.0.0.0.0.0:3162112 2 2 17 16 (null) 16.2.0.0.151.101.129.6.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.151.101.65.6.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.151.101.1.6.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.151.101.193.6.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.151.101.129.6.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.151.101.65.6.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.1
+51.101.1.6.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.151.101.193.6.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.151.101.129.6.0.0.0.0.0.0.0.0
+correct
+resolving www.netbsd.ro: found
+testing correctness with the following data:
+3162112 2 2 17 16 (null) 16.2.0.0.172.67.142.193.0.0.0.0.0.0.0.0:3162112 2 2 17 16 (null) 16.2.0.0.104.21.95.36.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.172.67.142.193.0.0.0.0.0.0.0.0:3162112 2 1 6 16 (null) 16.2.0.0.104.21.95.36.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.172.67.142.193.0.0.0.0.0.0.0.0:3162112 2 5 132 16 (null) 16.2.0.0.104.21.95.36.0.0.0.0.0.0.0.0
+correct
+getaddrinfo test finish
+
+
+
+*** END OF TEST RESOLVE ***
+
+
+
+
+
+*** BEGIN OF TEST RESOLVE ***
+*** TEST VERSION: 6.0.0.d15640249372de3106a66304569a44f6f32cca23
+*** TEST STATE: EXPECTED_PASS
+*** TEST BUILD: RTEMS_POSIX_API
+*** TEST TOOLS: 12.2.1 20230224 (RTEMS 6, RSB 77dc54ce841a04598c64073c217aa9e66df31d8f, Newlib 17ac400)
+syslog: telnetd: started successfully on port 23
diff --git a/testsuites/resolve/wscript b/testsuites/resolve/wscript
new file mode 100644
index 0000000..18ce5ea
--- /dev/null
+++ b/testsuites/resolve/wscript
@@ -0,0 +1,49 @@
+#
+# RTEMS Project (https://www.rtems.org/)
+#
+# Copyright (c) 2023 Chris Johns <chris at contemporary.software>
+# 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.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+# OWNER 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.
+
+from rtems_waf import rtems
+
+
+def init(ctx):
+ pass
+
+
+def configure(conf):
+ pass
+
+
+def build(bld):
+ legacy_config = bld.path.parent.find_node('support/net-legacy-config.c')
+ source = ['init.c', 'getaddrinfo_test.c', legacy_config]
+ bld.program(target='resolve.exe',
+ features='c cprogram',
+ cflags=bld.env.OPTIMIZATION + ['-g'],
+ includes=bld.env.IFLAGS,
+ lib=['networking'],
+ libpath=['.'],
+ source=source,
+ install_path=False)
diff --git a/testsuites/wscript b/testsuites/wscript
index 6bfc1eb..c0fd37d 100644
--- a/testsuites/wscript
+++ b/testsuites/wscript
@@ -29,7 +29,7 @@
from rtems_waf import rtems
subdirs = [
- 'ftp01', 'loopback', 'networking01', 'pppd', 'syscall01', 'telnetd01', 'telnetd02'
+ 'ftp01', 'loopback', 'networking01', 'pppd', 'resolve', 'syscall01', 'telnetd01', 'telnetd02'
]
--
2.37.1
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