Port the getaddrinfo(1) utility from NetBSD
Submitted by: Lohith Bellad <lohithbsd@gmail.com> Reviewed by: hiren (earlier rev), ae Obtained from: NetBSD MFC after: 1 week Relnotes: yes Sponsored by: Dell EMC Differential Revision: https://reviews.freebsd.org/D9365
This commit is contained in:
parent
4056f95699
commit
f5b9907c86
@ -7,7 +7,7 @@ LIB= netbsd
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CFLAGS+= -I${.CURDIR}
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SRCS+= strsuftoll.c util.c util.h
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SRCS+= sockaddr_snprintf.c strsuftoll.c util.c util.h
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INTERNALLIB=
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317
lib/libnetbsd/sockaddr_snprintf.c
Normal file
317
lib/libnetbsd/sockaddr_snprintf.c
Normal file
@ -0,0 +1,317 @@
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/* $NetBSD: sockaddr_snprintf.c,v 1.14 2016/12/29 18:30:55 christos Exp $ */
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/*-
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* Copyright (c) 2004, 2016 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <netinet/in.h>
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#ifdef HAVE_NET_IF_DL_H
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#include <net/if_dl.h>
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <util.h>
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#include <libutil.h>
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#include <netdb.h>
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#ifdef BSD4_4
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# define SALEN(sa) ((sa)->sa ## _len)
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#else
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# define SALEN(sa) ((unsigned)sizeof(*sa))
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#endif
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static int
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debug_in(char *str, size_t len, const struct sockaddr_in *sin)
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{
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return snprintf(str, len, "sin_len=%u, sin_family=%u, sin_port=%u, "
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"sin_addr.s_addr=%08x",
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SALEN(sin), sin->sin_family, sin->sin_port,
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sin->sin_addr.s_addr);
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}
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static int
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debug_in6(char *str, size_t len, const struct sockaddr_in6 *sin6)
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{
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const uint8_t *s = sin6->sin6_addr.s6_addr;
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return snprintf(str, len, "sin6_len=%u, sin6_family=%u, sin6_port=%u, "
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"sin6_flowinfo=%u, "
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"sin6_addr=%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:"
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"%02x:%02x:%02x:%02x:%02x:%02x, sin6_scope_id=%u",
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SALEN(sin6), sin6->sin6_family, sin6->sin6_port,
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sin6->sin6_flowinfo, s[0x0], s[0x1], s[0x2], s[0x3], s[0x4], s[0x5],
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s[0x6], s[0x7], s[0x8], s[0x9], s[0xa], s[0xb], s[0xc], s[0xd],
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s[0xe], s[0xf], sin6->sin6_scope_id);
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}
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static int
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debug_un(char *str, size_t len, const struct sockaddr_un *sun)
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{
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return snprintf(str, len, "sun_len=%u, sun_family=%u, sun_path=%*s",
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SALEN(sun), sun->sun_family, (int)sizeof(sun->sun_path),
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sun->sun_path);
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}
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#ifdef HAVE_NET_IF_DL_H
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static int
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debug_dl(char *str, size_t len, const struct sockaddr_dl *sdl)
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{
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const uint8_t *s = (const void *)sdl->sdl_data;
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return snprintf(str, len, "sdl_len=%u, sdl_family=%u, sdl_index=%u, "
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"sdl_type=%u, sdl_nlen=%u, sdl_alen=%u, sdl_slen=%u, sdl_data="
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"%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
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SALEN(sdl), sdl->sdl_family, sdl->sdl_index,
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sdl->sdl_type, sdl->sdl_nlen, sdl->sdl_alen, sdl->sdl_slen,
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s[0x0], s[0x1], s[0x2], s[0x3], s[0x4], s[0x5],
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s[0x6], s[0x7], s[0x8], s[0x9], s[0xa], s[0xb]);
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}
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#endif
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int
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sockaddr_snprintf(char * const sbuf, const size_t len, const char * const fmt,
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const struct sockaddr * const sa)
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{
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const void *a = NULL;
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char abuf[1024], nbuf[1024], *addr = NULL;
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char Abuf[1024], pbuf[32], *name = NULL, *port = NULL;
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char *ebuf = &sbuf[len - 1], *buf = sbuf;
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const char *ptr, *s;
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size_t salen;
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int p = -1;
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const struct sockaddr_in *sin4 = NULL;
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const struct sockaddr_in6 *sin6 = NULL;
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const struct sockaddr_un *sun = NULL;
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#ifdef HAVE_NET_IF_DL_H
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const struct sockaddr_dl *sdl = NULL;
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char *w = NULL;
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#endif
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int na = 1;
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#define ADDC(c) do { if (buf < ebuf) *buf++ = c; else buf++; } \
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while (/*CONSTCOND*/0)
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#define ADDS(p) do { for (s = p; *s; s++) ADDC(*s); } \
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while (/*CONSTCOND*/0)
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#define ADDNA() do { if (na) ADDS("N/A"); } \
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while (/*CONSTCOND*/0)
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switch (sa->sa_family) {
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case AF_UNSPEC:
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goto done;
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case AF_LOCAL:
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salen = sizeof(*sun);
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sun = ((const struct sockaddr_un *)(const void *)sa);
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(void)strlcpy(addr = abuf, sun->sun_path, sizeof(abuf));
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break;
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case AF_INET:
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salen = sizeof(*sin4);
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sin4 = ((const struct sockaddr_in *)(const void *)sa);
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p = ntohs(sin4->sin_port);
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a = &sin4->sin_addr;
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break;
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case AF_INET6:
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salen = sizeof(*sin6);
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sin6 = ((const struct sockaddr_in6 *)(const void *)sa);
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p = ntohs(sin6->sin6_port);
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a = &sin6->sin6_addr;
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break;
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#ifdef HAVE_NET_IF_DL_H
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case AF_LINK:
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sdl = ((const struct sockaddr_dl *)(const void *)sa);
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addr = abuf;
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if (sdl->sdl_slen == 0 && sdl->sdl_nlen == 0
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&& sdl->sdl_alen == 0) {
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salen = sizeof(*sdl);
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(void)snprintf(abuf, sizeof(abuf), "link#%hu",
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sdl->sdl_index);
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} else {
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salen = sdl->sdl_slen + sdl->sdl_nlen + sdl->sdl_alen;
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if (salen < sizeof(*sdl))
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salen = sizeof(*sdl);
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(void)strlcpy(abuf, link_ntoa(sdl), sizeof(abuf));
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if ((w = strchr(addr, ':')) != NULL) {
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*w++ = '\0';
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addr = w;
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}
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}
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break;
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#endif
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default:
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errno = EAFNOSUPPORT;
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return -1;
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}
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if (addr == abuf)
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name = addr;
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if (a && getnameinfo(sa, (socklen_t)salen, addr = abuf,
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(unsigned int)sizeof(abuf), NULL, 0,
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NI_NUMERICHOST|NI_NUMERICSERV) != 0)
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return -1;
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for (ptr = fmt; *ptr; ptr++) {
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if (*ptr != '%') {
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ADDC(*ptr);
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continue;
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}
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next_char:
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switch (*++ptr) {
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case '?':
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na = 0;
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goto next_char;
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case 'a':
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ADDS(addr);
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break;
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case 'p':
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if (p != -1) {
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(void)snprintf(nbuf, sizeof(nbuf), "%d", p);
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ADDS(nbuf);
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} else
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ADDNA();
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break;
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case 'f':
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(void)snprintf(nbuf, sizeof(nbuf), "%d", sa->sa_family);
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ADDS(nbuf);
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break;
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case 'l':
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(void)snprintf(nbuf, sizeof(nbuf), "%zu", salen);
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ADDS(nbuf);
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break;
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case 'A':
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if (name)
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ADDS(name);
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else if (!a)
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ADDNA();
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else {
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getnameinfo(sa, (socklen_t)salen, name = Abuf,
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(unsigned int)sizeof(nbuf), NULL, 0, 0);
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ADDS(name);
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}
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break;
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case 'P':
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if (port)
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ADDS(port);
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else if (p == -1)
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ADDNA();
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else {
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getnameinfo(sa, (socklen_t)salen, NULL, 0,
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port = pbuf,
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(unsigned int)sizeof(pbuf), 0);
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ADDS(port);
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}
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break;
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case 'I':
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#ifdef HAVE_NET_IF_DL_H
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if (sdl && addr != abuf) {
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ADDS(abuf);
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} else
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#endif
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{
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ADDNA();
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}
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break;
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case 'F':
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if (sin6) {
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(void)snprintf(nbuf, sizeof(nbuf), "%d",
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sin6->sin6_flowinfo);
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ADDS(nbuf);
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break;
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} else {
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ADDNA();
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}
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break;
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case 'S':
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if (sin6) {
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(void)snprintf(nbuf, sizeof(nbuf), "%d",
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sin6->sin6_scope_id);
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ADDS(nbuf);
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break;
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} else {
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ADDNA();
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}
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break;
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case 'R':
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{
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ADDNA();
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}
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break;
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case 'D':
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switch (sa->sa_family) {
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case AF_LOCAL:
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debug_un(nbuf, sizeof(nbuf), sun);
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break;
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case AF_INET:
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debug_in(nbuf, sizeof(nbuf), sin4);
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break;
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case AF_INET6:
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debug_in6(nbuf, sizeof(nbuf), sin6);
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break;
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#ifdef HAVE_NET_IF_DL_H
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case AF_LINK:
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debug_dl(nbuf, sizeof(nbuf), sdl);
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break;
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#endif
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default:
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abort();
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}
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ADDS(nbuf);
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break;
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default:
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ADDC('%');
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if (na == 0)
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ADDC('?');
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if (*ptr == '\0')
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goto done;
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/*FALLTHROUGH*/
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case '%':
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ADDC(*ptr);
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break;
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}
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na = 1;
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}
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done:
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if (buf < ebuf)
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*buf = '\0';
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else if (len != 0)
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sbuf[len - 1] = '\0';
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return (int)(buf - sbuf);
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}
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@ -37,6 +37,8 @@
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#include <libutil.h>
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char *flags_to_string(u_long flags, const char *def);
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int sockaddr_snprintf(char *, size_t, const char *,
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const struct sockaddr *);
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int string_to_flags(char **stringp, u_long *setp, u_long *clrp);
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#endif
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@ -50,6 +50,7 @@ SUBDIR= alias \
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fsync \
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gcore \
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gencat \
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getaddrinfo \
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getconf \
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getent \
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getopt \
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22
usr.bin/getaddrinfo/Makefile
Normal file
22
usr.bin/getaddrinfo/Makefile
Normal file
@ -0,0 +1,22 @@
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# $NetBSD: Makefile,v 1.2 2014/04/29 01:21:02 christos Exp $
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# $FreeBSD$
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.include <bsd.own.mk>
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PROG= getaddrinfo
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CFLAGS+= -I${.CURDIR}/../../lib/libnetbsd
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LIBNETBSDDIR= ${.OBJDIR}/../../lib/libnetbsd
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LIBNETBSD= ${LIBNETBSDDIR}/libnetbsd.a
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DPADD+= ${LIBNETBSD}
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LDADD+= ${LIBNETBSD}
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LIBADD+= util
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SYS_SOCKET_H?= ${.CURDIR}/../../sys/sys/socket.h
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CFLAGS+= -I.
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DPSRCS+= tables.h
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CLEANFILES+= tables.h
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tables.h: tables.awk ${SYS_SOCKET_H}
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LC_ALL=C awk -f ${.ALLSRC} > ${.TARGET}
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.include <bsd.prog.mk>
|
180
usr.bin/getaddrinfo/getaddrinfo.1
Normal file
180
usr.bin/getaddrinfo/getaddrinfo.1
Normal file
@ -0,0 +1,180 @@
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.\" $FreeBSD$
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.\" $NetBSD: getaddrinfo.1,v 1.5 2014/04/22 06:02:06 wiz Exp $
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.\"
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.\" Copyright (c) 2013 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This documentation is derived from text contributed to The NetBSD
|
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.\" Foundation by Taylor R. Campbell.
|
||||
.\"
|
||||
.\" 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.
|
||||
.\"
|
||||
.Dd March 20, 2017
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||||
.Dt GETADDRINFO 1
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||||
.Os
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||||
.Sh NAME
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||||
.Nm getaddrinfo
|
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.Nd resolve names to socket addresses
|
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.Sh SYNOPSIS
|
||||
.Nm
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.Op Fl cNnP
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.Op Fl f Ar family
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.Op Fl p Ar protocol
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.Op Fl s Ar service Ns Op Ns / Ns Ar protocol
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.Op Fl t Ar socktype
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.Op Ar hostname
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.Sh DESCRIPTION
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The
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.Nm
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||||
utility resolves host and service names to socket addresses with
|
||||
.Xr getaddrinfo 3
|
||||
and prints them to standard output in a user-friendly format.
|
||||
.Pp
|
||||
The output is a sequence of lines with space-separated fields:
|
||||
.Pp
|
||||
.Dl socket-type address-family protocol [af-specific data ...]
|
||||
.Pp
|
||||
For the
|
||||
.Dq inet
|
||||
and
|
||||
.Dq inet6
|
||||
address families, the af-specific data are the IP/IPv6 address and port
|
||||
number.
|
||||
.Pp
|
||||
Depending on the settings in
|
||||
.Xr nsswitch.conf 5 ,
|
||||
.Nm
|
||||
might query DNS for answers.
|
||||
However, it is not intended to be a general-purpose DNS query utility.
|
||||
Use
|
||||
.Xr drill 1
|
||||
for that.
|
||||
.Pp
|
||||
These options are available:
|
||||
.Bl -tag -width Ds
|
||||
.It Fl c
|
||||
Look up a canonical name as if with the
|
||||
.Dv AI_CANONNAME
|
||||
flag to
|
||||
.Xr getaddrinfo 3
|
||||
and print it on the first line before the socket addresses.
|
||||
.It Fl f Ar family
|
||||
Specify an address family.
|
||||
Address families are named like the
|
||||
.Dv AF_...
|
||||
constants for address family numbers in the
|
||||
.Aq Pa sys/socket.h
|
||||
header file but without the
|
||||
.Dv AF_
|
||||
prefix and lowercase.
|
||||
For example,
|
||||
.Dq inet
|
||||
corresponds with
|
||||
.Dv AF_INET .
|
||||
.It Fl N
|
||||
Treat the service as numeric and do not attempt service name
|
||||
resolution, as if with the
|
||||
.Dv AI_NUMERICSERV
|
||||
flag to
|
||||
.Xr getaddrinfo 3 .
|
||||
.It Fl n
|
||||
Treat the hostname as a numeric address and do not attempt name
|
||||
resolution, as if with the
|
||||
.Dv AI_NUMERICHOST
|
||||
flag to
|
||||
.Xr getaddrinfo 3 .
|
||||
.It Fl P
|
||||
Return socket addresses intended for use with
|
||||
.Xr bind 2 ,
|
||||
as if with the
|
||||
.Dv AI_PASSIVE
|
||||
flag to
|
||||
.Xr getaddrinfo 3 .
|
||||
By default, the socket addresses are intended for use with
|
||||
.Xr connect 2 ,
|
||||
.Xr sendto 2 ,
|
||||
or
|
||||
.Xr sendmsg 2 .
|
||||
.It Fl p Ar protocol
|
||||
Specify a protocol.
|
||||
Protocols are numeric or symbolic as listed in
|
||||
.Xr protocols 5 .
|
||||
.It Fl s Ar service Ns Op Ns / Ns Ar protocol
|
||||
Specify a service to look up.
|
||||
Services are symbolic or numeric with an optional
|
||||
protocol suffix as listed in
|
||||
.Xr services 5 .
|
||||
If a service is not specified, a hostname is required.
|
||||
.It Fl t Ar socktype
|
||||
Specify a socket type.
|
||||
Socket types are named like the
|
||||
.Dv SOCK_...
|
||||
constants for socket type numbers in the
|
||||
.Aq Pa sys/socket.h
|
||||
header file but without the
|
||||
.Dv SOCK_
|
||||
prefix and lowercase.
|
||||
For example,
|
||||
.Dq dgram
|
||||
corresponds with
|
||||
.Dv SOCK_DGRAM .
|
||||
.El
|
||||
.Sh EXIT STATUS
|
||||
.Ex -std getaddrinfo
|
||||
.Sh EXAMPLES
|
||||
Look up
|
||||
.Dq www.NetBSD.org :
|
||||
.Bd -literal -offset indent
|
||||
$ getaddrinfo www.NetBSD.org
|
||||
dgram inet6 udp 2001:4f8:3:7:2e0:81ff:fe52:9ab6 0
|
||||
dgram inet udp 149.20.53.67 0
|
||||
stream inet6 tcp 2001:4f8:3:7:2e0:81ff:fe52:9ab6 0
|
||||
stream inet tcp 149.20.53.67 0
|
||||
.Ed
|
||||
.Pp
|
||||
The port number here is zero because no service was specified.
|
||||
.Pp
|
||||
Look up
|
||||
.Dq morden.NetBSD.org
|
||||
for stream sockets on port 80, and show the canonical name:
|
||||
.Bd -literal -offset indent
|
||||
$ getaddrinfo -c -t stream -s 80 morden.NetBSD.org
|
||||
canonname ftp.NetBSD.org
|
||||
stream inet6 tcp 2001:470:1f05:3d::21 80
|
||||
stream inet tcp 199.233.217.249 80
|
||||
.Ed
|
||||
.Sh SEE ALSO
|
||||
.Xr drill 1 ,
|
||||
.Xr getent 1 ,
|
||||
.Xr getaddrinfo 3 ,
|
||||
.Xr getnameinfo 3 ,
|
||||
.Xr resolver 3 ,
|
||||
.Xr hosts 5 ,
|
||||
.Xr nsswitch.conf 5 ,
|
||||
.Xr protocols 5 ,
|
||||
.Xr resolv.conf 5 ,
|
||||
.Xr services 5
|
||||
.Sh HISTORY
|
||||
The
|
||||
.Nm
|
||||
command first appeared in
|
||||
.Nx 7.0 .
|
331
usr.bin/getaddrinfo/getaddrinfo.c
Normal file
331
usr.bin/getaddrinfo/getaddrinfo.c
Normal file
@ -0,0 +1,331 @@
|
||||
/* $NetBSD: getaddrinfo.c,v 1.4 2014/04/22 02:23:03 ginsbach Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2013 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Taylor R. Campbell.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
|
||||
#include <assert.h>
|
||||
#include <err.h>
|
||||
#include <errno.h>
|
||||
#include <limits.h>
|
||||
#include <netdb.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <util.h>
|
||||
|
||||
#include "tables.h"
|
||||
|
||||
static void usage(void) __dead;
|
||||
static void printaddrinfo(struct addrinfo *);
|
||||
static bool parse_af(const char *, int *);
|
||||
static bool parse_protocol(const char *, int *);
|
||||
static bool parse_socktype(const char *, int *);
|
||||
static bool parse_numeric_tabular(const char *, int *, const char *const *,
|
||||
size_t);
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
static const struct addrinfo zero_addrinfo;
|
||||
struct addrinfo hints = zero_addrinfo;
|
||||
struct addrinfo *addrinfo;
|
||||
const char *hostname = NULL, *service = NULL;
|
||||
int ch;
|
||||
int error;
|
||||
|
||||
setprogname(argv[0]);
|
||||
|
||||
hints.ai_family = AF_UNSPEC;
|
||||
hints.ai_socktype = 0;
|
||||
hints.ai_protocol = 0;
|
||||
hints.ai_flags = 0;
|
||||
|
||||
while ((ch = getopt(argc, argv, "cf:nNp:Ps:t:")) != -1) {
|
||||
switch (ch) {
|
||||
case 'c':
|
||||
hints.ai_flags |= AI_CANONNAME;
|
||||
break;
|
||||
|
||||
case 'f':
|
||||
if (!parse_af(optarg, &hints.ai_family)) {
|
||||
warnx("invalid address family: %s", optarg);
|
||||
usage();
|
||||
}
|
||||
break;
|
||||
|
||||
case 'n':
|
||||
hints.ai_flags |= AI_NUMERICHOST;
|
||||
break;
|
||||
|
||||
case 'N':
|
||||
hints.ai_flags |= AI_NUMERICSERV;
|
||||
break;
|
||||
|
||||
case 's':
|
||||
service = optarg;
|
||||
break;
|
||||
|
||||
case 'p':
|
||||
if (!parse_protocol(optarg, &hints.ai_protocol)) {
|
||||
warnx("invalid protocol: %s", optarg);
|
||||
usage();
|
||||
}
|
||||
break;
|
||||
|
||||
case 'P':
|
||||
hints.ai_flags |= AI_PASSIVE;
|
||||
break;
|
||||
|
||||
case 't':
|
||||
if (!parse_socktype(optarg, &hints.ai_socktype)) {
|
||||
warnx("invalid socket type: %s", optarg);
|
||||
usage();
|
||||
}
|
||||
break;
|
||||
|
||||
case '?':
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
}
|
||||
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if (!((argc == 1) || ((argc == 0) && (hints.ai_flags & AI_PASSIVE))))
|
||||
usage();
|
||||
if (argc == 1)
|
||||
hostname = argv[0];
|
||||
|
||||
if (service != NULL) {
|
||||
char *p;
|
||||
|
||||
if ((p = strchr(service, '/')) != NULL) {
|
||||
if (hints.ai_protocol != 0) {
|
||||
warnx("protocol already specified");
|
||||
usage();
|
||||
}
|
||||
*p = '\0';
|
||||
p++;
|
||||
|
||||
if (!parse_protocol(p, &hints.ai_protocol)) {
|
||||
warnx("invalid protocol: %s", p);
|
||||
usage();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
error = getaddrinfo(hostname, service, &hints, &addrinfo);
|
||||
if (error)
|
||||
errx(1, "%s", gai_strerror(error));
|
||||
|
||||
if ((hints.ai_flags & AI_CANONNAME) && (addrinfo != NULL)) {
|
||||
if (printf("canonname %s\n", addrinfo->ai_canonname) < 0)
|
||||
err(1, "printf");
|
||||
}
|
||||
|
||||
printaddrinfo(addrinfo);
|
||||
|
||||
freeaddrinfo(addrinfo);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __dead
|
||||
usage(void)
|
||||
{
|
||||
|
||||
(void)fprintf(stderr, "Usage: %s", getprogname());
|
||||
(void)fprintf(stderr,
|
||||
" [-f <family>] [-p <protocol>] [-t <socktype>] [-s <service>]\n");
|
||||
(void)fprintf(stderr, " [-cnNP] [<hostname>]\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
static bool
|
||||
parse_af(const char *string, int *afp)
|
||||
{
|
||||
|
||||
return parse_numeric_tabular(string, afp, address_families,
|
||||
__arraycount(address_families));
|
||||
}
|
||||
|
||||
static bool
|
||||
parse_protocol(const char *string, int *protop)
|
||||
{
|
||||
struct protoent *protoent;
|
||||
char *end;
|
||||
long value;
|
||||
|
||||
errno = 0;
|
||||
value = strtol(string, &end, 0);
|
||||
if ((string[0] == '\0') || (*end != '\0'))
|
||||
goto numeric_failed;
|
||||
if ((errno == ERANGE) && ((value == LONG_MAX) || (value == LONG_MIN)))
|
||||
goto numeric_failed;
|
||||
if ((value > INT_MAX) || (value < INT_MIN))
|
||||
goto numeric_failed;
|
||||
|
||||
*protop = value;
|
||||
return true;
|
||||
|
||||
numeric_failed:
|
||||
protoent = getprotobyname(string);
|
||||
if (protoent == NULL)
|
||||
goto protoent_failed;
|
||||
|
||||
*protop = protoent->p_proto;
|
||||
return true;
|
||||
|
||||
protoent_failed:
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool
|
||||
parse_socktype(const char *string, int *typep)
|
||||
{
|
||||
|
||||
return parse_numeric_tabular(string, typep, socket_types,
|
||||
__arraycount(socket_types));
|
||||
}
|
||||
|
||||
static bool
|
||||
parse_numeric_tabular(const char *string, int *valuep,
|
||||
const char *const *table, size_t n)
|
||||
{
|
||||
char *end;
|
||||
long value;
|
||||
size_t i;
|
||||
|
||||
assert((uintmax_t)n <= (uintmax_t)INT_MAX);
|
||||
|
||||
errno = 0;
|
||||
value = strtol(string, &end, 0);
|
||||
if ((string[0] == '\0') || (*end != '\0'))
|
||||
goto numeric_failed;
|
||||
if ((errno == ERANGE) && ((value == LONG_MAX) || (value == LONG_MIN)))
|
||||
goto numeric_failed;
|
||||
if ((value > INT_MAX) || (value < INT_MIN))
|
||||
goto numeric_failed;
|
||||
|
||||
*valuep = value;
|
||||
return true;
|
||||
|
||||
numeric_failed:
|
||||
for (i = 0; i < n; i++)
|
||||
if ((table[i] != NULL) && (strcmp(string, table[i]) == 0))
|
||||
break;
|
||||
if (i == n)
|
||||
goto table_failed;
|
||||
*valuep = i;
|
||||
return true;
|
||||
|
||||
table_failed:
|
||||
return false;
|
||||
}
|
||||
|
||||
static void
|
||||
printaddrinfo(struct addrinfo *addrinfo)
|
||||
{
|
||||
struct addrinfo *ai;
|
||||
char buf[1024];
|
||||
int n;
|
||||
struct protoent *protoent;
|
||||
|
||||
for (ai = addrinfo; ai != NULL; ai = ai->ai_next) {
|
||||
/* Print the socket type. */
|
||||
if ((ai->ai_socktype >= 0) &&
|
||||
((size_t)ai->ai_socktype < __arraycount(socket_types)) &&
|
||||
(socket_types[ai->ai_socktype] != NULL))
|
||||
n = printf("%s", socket_types[ai->ai_socktype]);
|
||||
else
|
||||
n = printf("%d", ai->ai_socktype);
|
||||
if (n < 0)
|
||||
err(1, "printf");
|
||||
|
||||
/* Print the address family. */
|
||||
if ((ai->ai_family >= 0) &&
|
||||
((size_t)ai->ai_family < __arraycount(address_families)) &&
|
||||
(address_families[ai->ai_family] != NULL))
|
||||
n = printf(" %s", address_families[ai->ai_family]);
|
||||
else
|
||||
n = printf(" %d", ai->ai_family);
|
||||
if (n < 0)
|
||||
err(1, "printf");
|
||||
|
||||
/* Print the protocol number. */
|
||||
protoent = getprotobynumber(ai->ai_protocol);
|
||||
if (protoent == NULL)
|
||||
n = printf(" %d", ai->ai_protocol);
|
||||
else
|
||||
n = printf(" %s", protoent->p_name);
|
||||
if (n < 0)
|
||||
err(1, "printf");
|
||||
|
||||
/* Format the sockaddr. */
|
||||
switch (ai->ai_family) {
|
||||
case AF_INET:
|
||||
case AF_INET6:
|
||||
n = sockaddr_snprintf(buf, sizeof(buf), " %a %p",
|
||||
ai->ai_addr);
|
||||
break;
|
||||
|
||||
default:
|
||||
n = sockaddr_snprintf(buf, sizeof(buf),
|
||||
"%a %p %I %F %R %S", ai->ai_addr);
|
||||
}
|
||||
|
||||
/*
|
||||
* Check for sockaddr_snprintf failure.
|
||||
*
|
||||
* XXX sockaddr_snprintf's error reporting is botched
|
||||
* -- man page says it sets errno, but if getnameinfo
|
||||
* fails, errno is not where it reports the error...
|
||||
*/
|
||||
if (n < 0) {
|
||||
warnx("sockaddr_snprintf failed");
|
||||
continue;
|
||||
}
|
||||
if (sizeof(buf) <= (size_t)n)
|
||||
warnx("truncated sockaddr_snprintf output");
|
||||
|
||||
/* Print the formatted sockaddr. */
|
||||
if (printf("%s\n", buf) < 0)
|
||||
err(1, "printf");
|
||||
}
|
||||
}
|
63
usr.bin/getaddrinfo/tables.awk
Normal file
63
usr.bin/getaddrinfo/tables.awk
Normal file
@ -0,0 +1,63 @@
|
||||
#!/usr/bin/awk -f
|
||||
|
||||
# $FreeBSD$
|
||||
# $NetBSD: tables.awk,v 1.2 2014/02/27 01:17:13 ginsbach Exp $
|
||||
|
||||
# Copyright (c) 2013 The NetBSD Foundation, Inc.
|
||||
# All rights reserved.
|
||||
#
|
||||
# This code is derived from software contributed to The NetBSD Foundation
|
||||
# by Taylor R. Campbell.
|
||||
#
|
||||
# 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.
|
||||
|
||||
BEGIN {
|
||||
n_afs = 0
|
||||
n_socktypes = 0
|
||||
}
|
||||
|
||||
!(($1 == "#define") && ($3 ~ /^[0-9]*$/)) {
|
||||
next
|
||||
}
|
||||
|
||||
($2 ~ /^AF_[A-Z0-9_]*$/) && ($2 != "AF_MAX") {
|
||||
afs[n_afs++] = substr($2, 4)
|
||||
}
|
||||
|
||||
($2 ~ /^SOCK_[A-Z0-9_]*$/) && ($2 != "SOCK_MAXADDRLEN") {
|
||||
socktypes[n_socktypes++] = substr($2, 6)
|
||||
}
|
||||
|
||||
END {
|
||||
printf("/* Do not edit! This file was generated automagically! */\n");
|
||||
|
||||
printf("\nstatic const char *const address_families[] = {\n");
|
||||
for (i = 0; i < n_afs; i++)
|
||||
printf("\t[AF_%s] = \"%s\",\n", afs[i], tolower(afs[i]));
|
||||
printf("};\n");
|
||||
|
||||
printf("\nstatic const char *const socket_types[] = {\n");
|
||||
for (i = 0; i < n_socktypes; i++)
|
||||
printf("\t[SOCK_%s] = \"%s\",\n", socktypes[i],
|
||||
tolower(socktypes[i]));
|
||||
printf("};\n");
|
||||
}
|
Loading…
Reference in New Issue
Block a user