/* Test name resolution behavior for octal, hexadecimal IPv4 addresses. Copyright (C) 2019-2023 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #include #include #include #include #include static void response (const struct resolv_response_context *ctx, struct resolv_response_builder *b, const char *qname, uint16_t qclass, uint16_t qtype) { /* The tests are not supposed send any DNS queries. */ FAIL_EXIT1 ("unexpected DNS query for %s/%d/%d", qname, qclass, qtype); } static void run_query_addrinfo (const char *query, const char *address) { char *quoted_query = support_quote_string (query); struct addrinfo *ai; struct addrinfo hints = { .ai_socktype = SOCK_STREAM, .ai_protocol = IPPROTO_TCP, }; char *context = xasprintf ("getaddrinfo \"%s\" AF_INET", quoted_query); char *expected = xasprintf ("address: STREAM/TCP %s 80\n", address); hints.ai_family = AF_INET; int ret = getaddrinfo (query, "80", &hints, &ai); check_addrinfo (context, ai, ret, expected); if (ret == 0) freeaddrinfo (ai); free (context); context = xasprintf ("getaddrinfo \"%s\" AF_UNSPEC", quoted_query); hints.ai_family = AF_UNSPEC; ret = getaddrinfo (query, "80", &hints, &ai); check_addrinfo (context, ai, ret, expected); if (ret == 0) freeaddrinfo (ai); free (expected); free (context); context = xasprintf ("getaddrinfo \"%s\" AF_INET6", quoted_query); expected = xasprintf ("flags: AI_V4MAPPED\n" "address: STREAM/TCP ::ffff:%s 80\n", address); hints.ai_family = AF_INET6; hints.ai_flags = AI_V4MAPPED; ret = getaddrinfo (query, "80", &hints, &ai); check_addrinfo (context, ai, ret, expected); if (ret == 0) freeaddrinfo (ai); free (expected); free (context); free (quoted_query); } static void run_query (const char *query, const char *address) { char *quoted_query = support_quote_string (query); char *context = xasprintf ("gethostbyname (\"%s\")", quoted_query); char *expected = xasprintf ("name: %s\n" "address: %s\n", query, address); check_hostent (context, gethostbyname (query), expected); free (context); context = xasprintf ("gethostbyname_r \"%s\"", quoted_query); struct hostent storage; char buf[4096]; struct hostent *e = NULL; TEST_COMPARE (gethostbyname_r (query, &storage, buf, sizeof (buf), &e, &h_errno), 0); check_hostent (context, e, expected); free (context); context = xasprintf ("gethostbyname2 (\"%s\", AF_INET)", quoted_query); check_hostent (context, gethostbyname2 (query, AF_INET), expected); free (context); context = xasprintf ("gethostbyname2_r \"%s\" AF_INET", quoted_query); e = NULL; TEST_COMPARE (gethostbyname2_r (query, AF_INET, &storage, buf, sizeof (buf), &e, &h_errno), 0); check_hostent (context, e, expected); free (context); free (expected); free (quoted_query); /* The gethostbyname tests are always valid for getaddrinfo, but not vice versa. */ run_query_addrinfo (query, address); } static int do_test (void) { struct resolv_test *aux = resolv_test_start ((struct resolv_redirect_config) { .response_callback = response, }); run_query ("192.000.002.010", "192.0.2.8"); /* Hexadecimal numbers are not accepted by gethostbyname. */ run_query_addrinfo ("0xc0000210", "192.0.2.16"); run_query_addrinfo ("192.0x234", "192.0.2.52"); resolv_test_end (aux); return 0; } #include