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39dec13ec0
Also repurpose existing build-time feature checks into unit test 1961,
to verify.
Prior to this patch these functions were auto-detected with both
autotools and cmake. In case of autotools there was an extra
verification phase ensuring the functions work as expected. This step
required running the function, thus was limited to non-cross-builds. For
cross-builds and CMake it always used the system implementation if
present. On Windows it always used the local implementation, because
availability/use is complicated there.
After this patch all platforms, always use the local implementation,
which is known to be accurate. This makes curl behave more consistently,
and simplifies the build process, a fixes cross-builds and CMake
auto-detection differences.
Also:
- test1960: enable unconditionally.
- checksrc: disallow globally, allowlist in `block_ip.c` example.
- dnsd: verify ntop result for NULL before passing to printf.
Ref: https://github.com/curl/curl/pull/22137#issuecomment-4797440983
Ref: #22137
Ref: 8537a5b0bc #16577
Closes #22170
172 lines
4.4 KiB
C
172 lines
4.4 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "unitcheck.h"
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifndef _WIN32
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_NETINET_IN6_H
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#include <netinet/in6.h>
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#endif
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/*
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* If USE_IPV6 is disabled, we still want to parse IPv6 addresses, so make
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* sure we have _some_ value for AF_INET6 without polluting our fake value
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* everywhere.
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*/
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#if !defined(USE_IPV6) && !defined(AF_INET6)
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#define AF_INET6 (AF_INET + 1)
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#endif
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static int test_ntop(void)
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{
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char ipv6res[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")];
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char ipv4res[sizeof("255.255.255.255")];
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unsigned char ipv6a[26];
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unsigned char ipv4a[5];
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const char *ipv6ptr = 0;
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const char *ipv4ptr = 0;
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ipv4res[0] = '\0';
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ipv4a[0] = 0xc0;
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ipv4a[1] = 0xa8;
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ipv4a[2] = 0x64;
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ipv4a[3] = 0x01;
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ipv4a[4] = 0x01;
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ipv4ptr = curlx_inet_ntop(AF_INET, ipv4a, ipv4res, sizeof(ipv4res));
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if(!ipv4ptr)
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return 1; /* fail */
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if(ipv4ptr != ipv4res)
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return 1; /* fail */
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if(!ipv4ptr[0])
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return 1; /* fail */
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if(memcmp(ipv4res, "192.168.100.1", 13))
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return 1; /* fail */
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ipv6res[0] = '\0';
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memset(ipv6a, 0, sizeof(ipv6a));
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ipv6a[0] = 0xfe;
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ipv6a[1] = 0x80;
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ipv6a[8] = 0x02;
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ipv6a[9] = 0x14;
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ipv6a[10] = 0x4f;
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ipv6a[11] = 0xff;
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ipv6a[12] = 0xfe;
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ipv6a[13] = 0x0b;
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ipv6a[14] = 0x76;
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ipv6a[15] = 0xc8;
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ipv6a[25] = 0x01;
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ipv6ptr = curlx_inet_ntop(AF_INET6, ipv6a, ipv6res, sizeof(ipv6res));
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if(!ipv6ptr)
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return 1; /* fail */
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if(ipv6ptr != ipv6res)
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return 1; /* fail */
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if(!ipv6ptr[0])
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return 1; /* fail */
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if(memcmp(ipv6res, "fe80::214:4fff:fe0b:76c8", 24))
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return 1; /* fail */
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/* verify working RFC 4291 zero prefixed IPv4 - mapped format */
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memset(ipv6a, 0, sizeof(ipv6a));
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ipv6a[12] = 0x7f;
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ipv6a[13] = 0x0;
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ipv6a[14] = 0x0;
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ipv6a[15] = 0x01;
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ipv6ptr = curlx_inet_ntop(AF_INET6, ipv6a, ipv6res, sizeof(ipv6res));
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if(!ipv6ptr)
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return 1; /* fail */
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if(ipv6ptr != ipv6res)
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return 1; /* fail */
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if(!ipv6ptr[0])
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return 1; /* fail */
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if(memcmp(ipv6res, "::127.0.0.1", 11))
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return 1; /* fail */
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return 0;
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}
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static int test_pton(void)
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{
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unsigned char ipv6a[16 + 1];
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unsigned char ipv4a[4 + 1];
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const char *ipv6src = "fe80::214:4fff:fe0b:76c8";
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const char *ipv4src = "192.168.100.1";
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memset(ipv4a, 1, sizeof(ipv4a));
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if(curlx_inet_pton(AF_INET, ipv4src, ipv4a) != 1)
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return 1; /* fail */
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if((ipv4a[0] != 0xc0) ||
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(ipv4a[1] != 0xa8) ||
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(ipv4a[2] != 0x64) ||
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(ipv4a[3] != 0x01) ||
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(ipv4a[4] != 0x01))
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return 1; /* fail */
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memset(ipv6a, 1, sizeof(ipv6a));
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if(curlx_inet_pton(AF_INET6, ipv6src, ipv6a) != 1)
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return 1; /* fail */
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if((ipv6a[0] != 0xfe) ||
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(ipv6a[1] != 0x80) ||
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(ipv6a[8] != 0x02) ||
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(ipv6a[9] != 0x14) ||
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(ipv6a[10] != 0x4f) ||
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(ipv6a[11] != 0xff) ||
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(ipv6a[12] != 0xfe) ||
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(ipv6a[13] != 0x0b) ||
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(ipv6a[14] != 0x76) ||
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(ipv6a[15] != 0xc8) ||
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(ipv6a[16] != 0x01))
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return 1; /* fail */
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if((ipv6a[2] != 0x0) ||
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(ipv6a[3] != 0x0) ||
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(ipv6a[4] != 0x0) ||
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(ipv6a[5] != 0x0) ||
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(ipv6a[6] != 0x0) ||
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(ipv6a[7] != 0x0))
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return 1; /* fail */
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return 0;
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}
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static CURLcode test_unit1961(const char *arg)
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{
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UNITTEST_BEGIN_SIMPLE
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fail_if(test_ntop(), "curlx_inet_ntop()");
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fail_if(test_pton(), "curlx_inet_pton()");
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UNITTEST_END_SIMPLE
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}
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