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      1 /* $NetBSD: t_sockaddr_snprintf.c,v 1.5 2025/09/14 17:20:32 christos Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2002, 2004, 2008, 2010 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code was contributed to The NetBSD Foundation by Christos Zoulas.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __COPYRIGHT("@(#) Copyright (c) 2008, 2010\
     33  The NetBSD Foundation, inc. All rights reserved.");
     34 __RCSID("$NetBSD: t_sockaddr_snprintf.c,v 1.5 2025/09/14 17:20:32 christos Exp $");
     35 
     36 #include <stdio.h>
     37 #include <sys/socket.h>		/* AF_ */
     38 #include <sys/un.h>			/* sun */
     39 
     40 #include <net/if_dl.h>		/* sdl */
     41 #include <netatalk/at.h>	/* sat */
     42 #include <netinet/in.h>		/* sin/sin6 */
     43 
     44 #include <netdb.h>
     45 #include <string.h>
     46 #include <util.h>
     47 
     48 #include <atf-c.h>
     49 
     50 static void
     51 make_dl(struct sockaddr_dl *sdl)
     52 {
     53 	memset(sdl, 0, sizeof(*sdl));
     54 	sdl->sdl_len = sizeof(*sdl);
     55 	sdl->sdl_family = AF_LINK;
     56 	sdl->sdl_index = 0;
     57 	sdl->sdl_type = 0;
     58 	sdl->sdl_nlen = 0;
     59 	sdl->sdl_alen = 6;
     60 	sdl->sdl_slen = 0;
     61 	memcpy(sdl->sdl_data, "\01\02\03\04\05\06", 6);
     62 }
     63 
     64 static void
     65 make_in4(struct sockaddr_in *sin4)
     66 {
     67 	memset(sin4, 0, sizeof(*sin4));
     68 	sin4->sin_len = sizeof(*sin4);
     69 	sin4->sin_family = AF_INET;
     70 	sin4->sin_port = ntohs(80);
     71 	sin4->sin_addr.s_addr = ntohl(INADDR_LOOPBACK);
     72 }
     73 
     74 #ifdef INET6
     75 static void
     76 make_in6(struct sockaddr_in6 *sin6)
     77 {
     78 	memset(sin6, 0, sizeof(*sin6));
     79 	sin6->sin6_len = sizeof(*sin6);
     80 	sin6->sin6_family = AF_INET6;
     81 	sin6->sin6_port = ntohs(80);
     82 	sin6->sin6_addr = in6addr_nodelocal_allnodes;
     83 }
     84 #endif
     85 
     86 static void
     87 make_at(struct sockaddr_at *sat)
     88 {
     89 	memset(sat, 0, sizeof(*sat));
     90 	sat->sat_len = sizeof(*sat);
     91 	sat->sat_family = AF_APPLETALK;
     92 	sat->sat_addr.s_net = ntohs(101);
     93 	sat->sat_addr.s_node = 3;
     94 }
     95 
     96 static void
     97 make_un(struct sockaddr_un *sun)
     98 {
     99 	memset(sun, 0, sizeof(*sun));
    100 	sun->sun_len = sizeof(*sun);
    101 	sun->sun_family = AF_UNIX;
    102 	strncpy(sun->sun_path, "/tmp/sock", sizeof(sun->sun_path));
    103 }
    104 
    105 ATF_TC(sockaddr_snprintf_in);
    106 ATF_TC_HEAD(sockaddr_snprintf_in, tc)
    107 {
    108 	atf_tc_set_md_var(tc, "descr",
    109 		"Checks sockaddr_snprintf(3) with sockaddr_in");
    110 }
    111 ATF_TC_BODY(sockaddr_snprintf_in, tc)
    112 {
    113 	char buf[1024];
    114 	struct sockaddr_in sin4;
    115 	int i;
    116 
    117 	make_in4(&sin4);
    118 
    119 	i = sockaddr_snprintf(buf, sizeof(buf), "%f %l %p %a",
    120 		(struct sockaddr *)&sin4);
    121 
    122 	ATF_REQUIRE_EQ_MSG(i, 17, "bad length for sin4");
    123 	ATF_REQUIRE_STREQ(buf, "2 16 80 127.0.0.1");
    124 }
    125 
    126 ATF_TC(sockaddr_snprintf_in6);
    127 ATF_TC_HEAD(sockaddr_snprintf_in6, tc)
    128 {
    129 	atf_tc_set_md_var(tc, "descr",
    130 		"Checks sockaddr_snprintf(3) with sockaddr_in6");
    131 }
    132 ATF_TC_BODY(sockaddr_snprintf_in6, tc)
    133 {
    134 #ifdef INET6
    135 	char buf[1024];
    136 	struct sockaddr_in6 sin6;
    137 	int i;
    138 
    139 	make_in6(&sin6);
    140 
    141 	i = sockaddr_snprintf(buf, sizeof(buf), "%f %l %p %a",
    142 		(struct sockaddr *)&sin6);
    143 
    144 	ATF_REQUIRE_EQ_MSG(i, 16, "bad length for sin6");
    145 	ATF_REQUIRE_STREQ(buf, "24 28 80 ff01::1");
    146 #else
    147 	atf_tc_skip("Tests built with USE_INET6=no");
    148 #endif /* INET6 */
    149 }
    150 
    151 ATF_TC(sockaddr_snprintf_un);
    152 ATF_TC_HEAD(sockaddr_snprintf_un, tc)
    153 {
    154 	atf_tc_set_md_var(tc, "descr",
    155 		"Checks sockaddr_snprintf(3) with sockaddr_un");
    156 }
    157 ATF_TC_BODY(sockaddr_snprintf_un, tc)
    158 {
    159 	char buf[1024];
    160 	struct sockaddr_un sun;
    161 	int i;
    162 
    163 	make_un(&sun);
    164 
    165 	i = sockaddr_snprintf(buf, sizeof(buf), "%f %l %a",
    166 		(struct sockaddr *)&sun);
    167 
    168 	ATF_REQUIRE_EQ_MSG(i, 15, "bad length for sun");
    169 	ATF_REQUIRE_STREQ(buf, "1 106 /tmp/sock");
    170 }
    171 
    172 ATF_TC(sockaddr_snprintf_at);
    173 ATF_TC_HEAD(sockaddr_snprintf_at, tc)
    174 {
    175 	atf_tc_set_md_var(tc, "descr",
    176 		"Checks sockaddr_snprintf(3) with sockaddr_at");
    177 }
    178 ATF_TC_BODY(sockaddr_snprintf_at, tc)
    179 {
    180 	char buf[1024];
    181 	struct sockaddr_at sat;
    182 	int i;
    183 
    184 	make_at(&sat);
    185 
    186 	i = sockaddr_snprintf(buf, sizeof(buf), "%f %l %a",
    187 		(struct sockaddr *)&sat);
    188 
    189 	ATF_REQUIRE_EQ_MSG(i, 11, "bad length for sat");
    190 	ATF_REQUIRE_STREQ(buf, "16 16 101.3");
    191 }
    192 
    193 ATF_TC(sockaddr_snprintf_dl);
    194 ATF_TC_HEAD(sockaddr_snprintf_dl, tc)
    195 {
    196 	atf_tc_set_md_var(tc, "descr",
    197 		"Checks sockaddr_snprintf(3) with sockaddr_dl");
    198 }
    199 ATF_TC_BODY(sockaddr_snprintf_dl, tc)
    200 {
    201 	char buf[1024];
    202 	struct sockaddr_dl sdl;
    203 	int i;
    204 
    205 	make_dl(&sdl);
    206 
    207 	i = sockaddr_snprintf(buf, sizeof(buf), "%f %l %a",
    208 		(struct sockaddr *)&sdl);
    209 
    210 	ATF_REQUIRE_EQ_MSG(i, 17, "bad length for sdl");
    211 	ATF_REQUIRE_STREQ(buf, "18 32 1.2.3.4.5.6");
    212 }
    213 
    214 
    215 ATF_TC(sockaddr_snprintf_generic);
    216 ATF_TC_HEAD(sockaddr_snprintf_generic, tc)
    217 {
    218 	atf_tc_set_md_var(tc, "descr",
    219 		"Checks sockaddr_snprintf(3) with generic args");
    220 }
    221 ATF_TC_BODY(sockaddr_snprintf_generic, tc)
    222 {
    223 	char buf[1024];
    224 	struct sockaddr_at sat;
    225 	struct sockaddr_dl sdl;
    226 	struct sockaddr_un sun;
    227 	struct sockaddr_in sin4;
    228 	struct sockaddr_in6 sin6;
    229 	struct addrinfo *res;
    230 	int i;
    231 
    232 
    233 #define CHECK(a, b) \
    234 	ATF_REQUIRE_EQ_MSG(i, (a), "bad length"); \
    235 	ATF_REQUIRE_STREQ(buf, (b))
    236 
    237 	make_dl(&sdl);
    238 	i = sockaddr_snprintf(buf, sizeof(buf), "%n",
    239 		(struct sockaddr *)&sdl);
    240 	CHECK(11, "1.2.3.4.5.6");
    241 
    242 	make_in6(&sin6);
    243 	i = sockaddr_snprintf(buf, sizeof(buf), "%n",
    244 		(struct sockaddr *)&sin6);
    245 	CHECK(12, "[ff01::1]:80");
    246 
    247 	make_in4(&sin4);
    248 	i = sockaddr_snprintf(buf, sizeof(buf), "%n",
    249 		(struct sockaddr *)&sin4);
    250 	CHECK(12, "127.0.0.1:80");
    251 
    252 	make_at(&sat);
    253 	i = sockaddr_snprintf(buf, sizeof(buf), "%n",
    254 		(struct sockaddr *)&sat);
    255 	CHECK(7, "101.3:0");
    256 
    257 	make_un(&sun);
    258 	i = sockaddr_snprintf(buf, sizeof(buf), "%n",
    259 		(struct sockaddr *)&sun);
    260 	CHECK(9, "/tmp/sock");
    261 
    262 	if (getaddrinfo("morden.netbsd.org", "https", NULL, &res) == 0) {
    263 		for (struct addrinfo *ai = res; ai; ai = ai->ai_next) {
    264 			i = sockaddr_snprintf(buf, sizeof(buf), "%N",
    265 			    ai->ai_addr);
    266 			if (strcmp(buf, "morden.netbsd.org:https") == 0 ||
    267 			    strcmp(buf, "ftp.NetBSD.org:https") == 0)
    268 				continue;
    269 			fprintf(stderr, "Unexpected %s\n", buf);
    270 		}
    271 		freeaddrinfo(res);
    272 	}
    273 }
    274 
    275 ATF_TP_ADD_TCS(tp)
    276 {
    277 
    278 	ATF_TP_ADD_TC(tp, sockaddr_snprintf_in);
    279 	ATF_TP_ADD_TC(tp, sockaddr_snprintf_in6);
    280 	ATF_TP_ADD_TC(tp, sockaddr_snprintf_un);
    281 	ATF_TP_ADD_TC(tp, sockaddr_snprintf_at);
    282 	ATF_TP_ADD_TC(tp, sockaddr_snprintf_dl);
    283 	ATF_TP_ADD_TC(tp, sockaddr_snprintf_generic);
    284 
    285 	return atf_no_error();
    286 }
    287