mirror of
https://github.com/isc-projects/bind9.git
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124 lines
4 KiB
C
124 lines
4 KiB
C
/*
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* Copyright (C) 2001 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
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* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: control.c,v 1.8 2001/09/15 14:23:22 marka Exp $ */
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#include <config.h>
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#include <string.h>
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#include <isc/app.h>
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#include <isc/event.h>
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#include <isc/mem.h>
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#include <isc/util.h>
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#include <isccc/alist.h>
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#include <isccc/cc.h>
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#include <isccc/result.h>
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#include <named/control.h>
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#include <named/log.h>
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#include <named/server.h>
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static isc_boolean_t
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command_compare(const char *text, const char *command) {
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unsigned int commandlen = strlen(command);
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if (strncasecmp(text, command, commandlen) == 0 &&
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(text[commandlen] == '\0' ||
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text[commandlen] == ' ' ||
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text[commandlen] == '\t'))
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return (ISC_TRUE);
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return (ISC_FALSE);
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}
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/*
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* This function is called to process the incoming command
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* when a control channel message is received.
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*/
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isc_result_t
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ns_control_docommand(isccc_sexpr_t *message, isc_buffer_t *text) {
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isccc_sexpr_t *data;
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char *command;
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isc_result_t result;
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data = isccc_alist_lookup(message, "_data");
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if (data == NULL) {
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/*
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* No data section.
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*/
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return (ISC_R_FAILURE);
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}
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result = isccc_cc_lookupstring(data, "type", &command);
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if (result != ISC_R_SUCCESS) {
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/*
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* We have no idea what this is.
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*/
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return (result);
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}
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isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
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NS_LOGMODULE_CONTROL, ISC_LOG_DEBUG(1),
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"received control channel command '%s'",
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command);
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/*
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* Compare the 'command' parameter against all known control commands.
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*/
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if (command_compare(command, NS_COMMAND_RELOAD)) {
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result = ns_server_reloadcommand(ns_g_server, command);
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} else if (command_compare(command, NS_COMMAND_RECONFIG)) {
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result = ns_server_reconfigcommand(ns_g_server, command);
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} else if (command_compare(command, NS_COMMAND_REFRESH)) {
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result = ns_server_refreshcommand(ns_g_server, command);
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} else if (command_compare(command, NS_COMMAND_RETRANSFER)) {
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result = ns_server_retransfercommand(ns_g_server, command);
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} else if (command_compare(command, NS_COMMAND_HALT)) {
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ns_server_flushonshutdown(ns_g_server, ISC_FALSE);
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isc_app_shutdown();
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result = ISC_R_SUCCESS;
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} else if (command_compare(command, NS_COMMAND_STOP)) {
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ns_server_flushonshutdown(ns_g_server, ISC_TRUE);
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isc_app_shutdown();
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result = ISC_R_SUCCESS;
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} else if (command_compare(command, NS_COMMAND_DUMPSTATS)) {
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result = ns_server_dumpstats(ns_g_server);
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} else if (command_compare(command, NS_COMMAND_QUERYLOG)) {
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result = ns_server_togglequerylog(ns_g_server);
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} else if (command_compare(command, NS_COMMAND_DUMPDB)) {
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ns_server_dumpdb(ns_g_server);
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result = ISC_R_SUCCESS;
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} else if (command_compare(command, NS_COMMAND_TRACE)) {
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result = ns_server_setdebuglevel(ns_g_server, command);
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} else if (command_compare(command, NS_COMMAND_NOTRACE)) {
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ns_g_debuglevel = 0;
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isc_log_setdebuglevel(ns_g_lctx, ns_g_debuglevel);
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result = ISC_R_SUCCESS;
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} else if (command_compare(command, NS_COMMAND_FLUSH)) {
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result = ns_server_flushcache(ns_g_server, command);
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} else if (command_compare(command, NS_COMMAND_STATUS)) {
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result = ns_server_status(ns_g_server, text);
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} else {
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isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
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NS_LOGMODULE_CONTROL, ISC_LOG_WARNING,
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"unknown control channel command '%s'",
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command);
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result = ISC_R_NOTIMPLEMENTED;
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}
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return (result);
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}
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