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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <isc/md.h>
#include <isc/net.h>
#include <isc/print.h>
#include <isc/util.h>
#include <dns/edns.h>
static void
usage(void) {
fprintf(stderr, "usage: feature-test <arg>\n");
fprintf(stderr, "args:\n");
fprintf(stderr, "\t--edns-version\n");
fprintf(stderr, "\t--enable-dnsrps\n");
fprintf(stderr, "\t--enable-dnstap\n");
fprintf(stderr, "\t--enable-querytrace\n");
fprintf(stderr, "\t--gethostname\n");
fprintf(stderr, "\t--gssapi\n");
fprintf(stderr, "\t--have-geoip2\n");
fprintf(stderr, "\t--have-json-c\n");
fprintf(stderr, "\t--have-libxml2\n");
fprintf(stderr, "\t--ipv6only=no\n");
fprintf(stderr, "\t--md5\n");
fprintf(stderr, "\t--tsan\n");
fprintf(stderr, "\t--with-dlz-filesystem\n");
fprintf(stderr, "\t--with-libidn2\n");
fprintf(stderr, "\t--with-lmdb\n");
fprintf(stderr, "\t--with-libnghttp2\n");
fprintf(stderr, "\t--with-zlib\n");
}
int
main(int argc, char **argv) {
if (argc != 2) {
usage();
return (1);
}
if (strcmp(argv[1], "--edns-version") == 0) {
#ifdef DNS_EDNS_VERSION
printf("%d\n", DNS_EDNS_VERSION);
#else /* ifdef DNS_EDNS_VERSION */
printf("0\n");
#endif /* ifdef DNS_EDNS_VERSION */
return (0);
}
if (strcmp(argv[1], "--enable-dnsrps") == 0) {
#ifdef USE_DNSRPS
return (0);
#else /* ifdef USE_DNSRPS */
return (1);
#endif /* ifdef USE_DNSRPS */
}
if (strcmp(argv[1], "--enable-dnstap") == 0) {
#ifdef HAVE_DNSTAP
return (0);
#else /* ifdef HAVE_DNSTAP */
return (1);
#endif /* ifdef HAVE_DNSTAP */
}
if (strcmp(argv[1], "--enable-querytrace") == 0) {
#ifdef WANT_QUERYTRACE
return (0);
#else /* ifdef WANT_QUERYTRACE */
return (1);
#endif /* ifdef WANT_QUERYTRACE */
}
if (strcmp(argv[1], "--gethostname") == 0) {
char hostname[_POSIX_HOST_NAME_MAX + 1];
int n;
n = gethostname(hostname, sizeof(hostname));
if (n == -1) {
perror("gethostname");
return (1);
}
fprintf(stdout, "%s\n", hostname);
return (0);
}
if (strcmp(argv[1], "--gssapi") == 0) {
#if HAVE_GSSAPI
return (0);
#else /* HAVE_GSSAPI */
return (1);
#endif /* HAVE_GSSAPI */
}
if (strcmp(argv[1], "--have-geoip2") == 0) {
#ifdef HAVE_GEOIP2
return (0);
#else /* ifdef HAVE_GEOIP2 */
return (1);
#endif /* ifdef HAVE_GEOIP2 */
}
if (strcmp(argv[1], "--have-json-c") == 0) {
#ifdef HAVE_JSON_C
return (0);
#else /* ifdef HAVE_JSON_C */
return (1);
#endif /* ifdef HAVE_JSON_C */
}
if (strcmp(argv[1], "--have-libxml2") == 0) {
#ifdef HAVE_LIBXML2
return (0);
#else /* ifdef HAVE_LIBXML2 */
return (1);
#endif /* ifdef HAVE_LIBXML2 */
}
if (strcmp(argv[1], "--tsan") == 0) {
#if defined(__has_feature)
#if __has_feature(thread_sanitizer)
return (0);
#endif
#endif
#if __SANITIZE_THREAD__
return (0);
#else
return (1);
#endif
}
if (strcmp(argv[1], "--md5") == 0) {
unsigned char digest[ISC_MAX_MD_SIZE];
const unsigned char test[] = "test";
unsigned int size = sizeof(digest);
if (isc_md(ISC_MD_MD5, test, sizeof(test), digest, &size) ==
ISC_R_SUCCESS)
{
return (0);
} else {
return (1);
}
}
if (strcmp(argv[1], "--ipv6only=no") == 0) {
#if defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
int s;
int n = -1;
int v6only = -1;
socklen_t len = sizeof(v6only);
s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
if (s >= 0) {
n = getsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
(void *)&v6only, &len);
close(s);
}
return ((n == 0 && v6only == 0) ? 0 : 1);
#else /* defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY) */
return (1);
#endif /* defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY) */
}
if (strcmp(argv[1], "--with-dlz-filesystem") == 0) {
#ifdef DLZ_FILESYSTEM
return (0);
#else /* ifdef DLZ_FILESYSTEM */
return (1);
#endif /* ifdef DLZ_FILESYSTEM */
}
if (strcmp(argv[1], "--with-libidn2") == 0) {
#ifdef HAVE_LIBIDN2
return (0);
#else /* ifdef HAVE_LIBIDN2 */
return (1);
#endif /* ifdef HAVE_LIBIDN2 */
}
if (strcmp(argv[1], "--with-lmdb") == 0) {
#ifdef HAVE_LMDB
return (0);
#else /* ifdef HAVE_LMDB */
return (1);
#endif /* ifdef HAVE_LMDB */
}
if (strcmp(argv[1], "--with-libnghttp2") == 0) {
#ifdef HAVE_LIBNGHTTP2
return (0);
#else /* ifdef HAVE_LIBNGHTTP2 */
return (1);
#endif /* ifdef HAVE_LIBNGHTTP2 */
}
if (strcmp(argv[1], "--with-zlib") == 0) {
#ifdef HAVE_ZLIB
return (0);
#else /* ifdef HAVE_ZLIB */
return (1);
#endif /* ifdef HAVE_ZLIB */
}
fprintf(stderr, "unknown arg: %s\n", argv[1]);
usage();
return (1);
}
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