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https://github.com/isc-projects/bind9.git
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f5c204ac3e
Instead of relying on unreliable order of execution of the library constructors and destructors, move them to individual binaries. The advantage is that the execution time and order will remain constant and will not depend on the dynamic load dependency solver. This requires more work, but that was mitigated by a simple requirement, any executable using libisc and libdns, must include <isc/lib.h> and <dns/lib.h> respectively (in this particular order). In turn, these two headers must not be included from within any library as they contain inlined functions marked with constructor/destructor attributes.
116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/*! \file */
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#include <stdlib.h>
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#include <isc/commandline.h>
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#include <isc/lib.h>
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#include <isc/log.h>
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#include <isc/mem.h>
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#include <isc/result.h>
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#include <isc/util.h>
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#include <dns/journal.h>
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#include <dns/lib.h>
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#include <dns/types.h>
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const char *progname = NULL;
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static void
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usage(void) {
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fprintf(stderr, "Usage: %s [-dux] journal\n", progname);
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exit(EXIT_FAILURE);
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}
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/*
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* Setup logging to use stderr.
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*/
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static void
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setup_logging(FILE *errout) {
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isc_logconfig_t *logconfig = isc_logconfig_get();
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isc_log_createandusechannel(
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logconfig, "default_stderr", ISC_LOG_TOFILEDESC,
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ISC_LOG_DYNAMIC, ISC_LOGDESTINATION_FILE(errout), 0,
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ISC_LOGCATEGORY_DEFAULT, ISC_LOGMODULE_DEFAULT);
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}
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int
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main(int argc, char **argv) {
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char *file;
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isc_mem_t *mctx = NULL;
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isc_result_t result;
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uint32_t flags = 0U;
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int ch;
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bool compact = false;
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bool downgrade = false;
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bool upgrade = false;
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unsigned int serial = 0;
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char *endp = NULL;
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progname = argv[0];
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while ((ch = isc_commandline_parse(argc, argv, "c:dux")) != -1) {
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switch (ch) {
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case 'c':
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compact = true;
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serial = strtoul(isc_commandline_argument, &endp, 0);
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if (endp == isc_commandline_argument || *endp != 0) {
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fprintf(stderr, "invalid serial: %s\n",
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isc_commandline_argument);
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exit(EXIT_FAILURE);
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}
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break;
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case 'd':
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downgrade = true;
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break;
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case 'u':
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upgrade = true;
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break;
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case 'x':
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flags |= DNS_JOURNAL_PRINTXHDR;
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break;
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default:
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usage();
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}
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}
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argc -= isc_commandline_index;
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argv += isc_commandline_index;
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if (argc != 1) {
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usage();
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}
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file = argv[0];
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isc_mem_create(&mctx);
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setup_logging(stderr);
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if (upgrade) {
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flags = DNS_JOURNAL_COMPACTALL;
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result = dns_journal_compact(mctx, file, 0, flags, 0);
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} else if (downgrade) {
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flags = DNS_JOURNAL_COMPACTALL | DNS_JOURNAL_VERSION1;
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result = dns_journal_compact(mctx, file, 0, flags, 0);
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} else if (compact) {
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flags = 0;
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result = dns_journal_compact(mctx, file, serial, flags, 0);
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} else {
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result = dns_journal_print(mctx, flags, file, stdout);
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if (result == DNS_R_NOJOURNAL) {
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fprintf(stderr, "%s\n", isc_result_totext(result));
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}
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}
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isc_mem_detach(&mctx);
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return result != ISC_R_SUCCESS ? 1 : 0;
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}
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