Imported Upstream version 1.4.5
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412 changed files with 168642 additions and 0 deletions
420
plugins/check_ldap.c
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420
plugins/check_ldap.c
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/******************************************************************************
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*
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* Nagios check_ldap plugin
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*
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* License: GPL
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* Copyright (c) 2000-2006 nagios-plugins team
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*
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* Last Modified: $Date: 2006/10/22 22:24:27 $
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*
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* Description:
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*
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* This file contains the check_ldap plugin
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*
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* License Information:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: check_ldap.c,v 1.33 2006/10/22 22:24:27 opensides Exp $
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******************************************************************************/
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/* progname may be check_ldaps */
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char *progname = "check_ldap";
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const char *revision = "$Revision: 1.33 $";
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const char *copyright = "2000-2006";
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const char *email = "nagiosplug-devel@lists.sourceforge.net";
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#include "common.h"
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#include "netutils.h"
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#include "utils.h"
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#include <lber.h>
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#include <ldap.h>
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enum {
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UNDEFINED = 0,
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#ifdef HAVE_LDAP_SET_OPTION
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DEFAULT_PROTOCOL = 2,
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#endif
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DEFAULT_PORT = 389
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};
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int process_arguments (int, char **);
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int validate_arguments (void);
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void print_help (void);
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void print_usage (void);
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char ld_defattr[] = "(objectclass=*)";
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char *ld_attr = ld_defattr;
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char *ld_host = NULL;
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char *ld_base = NULL;
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char *ld_passwd = NULL;
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char *ld_binddn = NULL;
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int ld_port = DEFAULT_PORT;
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#ifdef HAVE_LDAP_SET_OPTION
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int ld_protocol = DEFAULT_PROTOCOL;
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#endif
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double warn_time = UNDEFINED;
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double crit_time = UNDEFINED;
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struct timeval tv;
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/* for ldap tls */
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char *SERVICE = "LDAP";
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int
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main (int argc, char *argv[])
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{
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LDAP *ld;
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LDAPMessage *result;
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/* should be int result = STATE_UNKNOWN; */
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int status = STATE_UNKNOWN;
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long microsec;
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double elapsed_time;
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/* for ldap tls */
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int tls;
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int version=3;
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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if (strstr(argv[0],"check_ldaps")) {
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asprintf (&progname, "check_ldaps");
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}
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if (process_arguments (argc, argv) == ERROR)
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usage4 (_("Could not parse arguments"));
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/* initialize alarm signal handling */
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signal (SIGALRM, socket_timeout_alarm_handler);
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/* set socket timeout */
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alarm (socket_timeout);
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/* get the start time */
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gettimeofday (&tv, NULL);
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/* initialize ldap */
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#ifdef HAVE_LDAP_INIT
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if (!(ld = ldap_init (ld_host, ld_port))) {
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printf ("Could not connect to the server at port %i\n", ld_port);
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return STATE_CRITICAL;
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}
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#else
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if (!(ld = ldap_open (ld_host, ld_port))) {
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/*ldap_perror(ld, "ldap_open"); */
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printf (_("Could not connect to the server at port %i\n"), ld_port);
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return STATE_CRITICAL;
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}
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#endif /* HAVE_LDAP_INIT */
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#ifdef HAVE_LDAP_SET_OPTION
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/* set ldap options */
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if (ldap_set_option (ld, LDAP_OPT_PROTOCOL_VERSION, &ld_protocol) !=
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LDAP_OPT_SUCCESS ) {
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printf(_("Could not set protocol version %d\n"), ld_protocol);
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return STATE_CRITICAL;
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}
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#endif
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if (strstr(argv[0],"check_ldaps")) {
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/* with TLS */
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if ( ld_port == LDAPS_PORT ) {
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asprintf (&SERVICE, "LDAPS");
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#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_X_TLS)
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/* ldaps: set option tls */
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tls = LDAP_OPT_X_TLS_HARD;
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if (ldap_set_option (ld, LDAP_OPT_X_TLS, &tls) != LDAP_SUCCESS)
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{
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/*ldap_perror(ld, "ldaps_option"); */
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printf (_("Could not init TLS at port %i!\n"), ld_port);
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return STATE_CRITICAL;
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}
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#else
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printf (_("TLS not supported by the libraries!\n"), ld_port);
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return STATE_CRITICAL;
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#endif /* LDAP_OPT_X_TLS */
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} else {
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asprintf (&SERVICE, "LDAP-TLS");
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#if defined(HAVE_LDAP_SET_OPTION) && defined(HAVE_LDAP_START_TLS_S)
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/* ldap with startTLS: set option version */
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if (ldap_get_option(ld,LDAP_OPT_PROTOCOL_VERSION, &version) == LDAP_OPT_SUCCESS )
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{
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if (version < LDAP_VERSION3)
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{
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version = LDAP_VERSION3;
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ldap_set_option(ld, LDAP_OPT_PROTOCOL_VERSION, &version);
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}
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}
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/* call start_tls */
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if (ldap_start_tls_s(ld, NULL, NULL) != LDAP_SUCCESS)
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{
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/*ldap_perror(ld, "ldap_start_tls"); */
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printf (_("Could not init startTLS at port %i!\n"), ld_port);
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return STATE_CRITICAL;
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}
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#else
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printf (_("startTLS not supported by the library, needs LDAPv3!\n"));
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return STATE_CRITICAL;
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#endif /* HAVE_LDAP_START_TLS_S */
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}
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}
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/* bind to the ldap server */
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if (ldap_bind_s (ld, ld_binddn, ld_passwd, LDAP_AUTH_SIMPLE) !=
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LDAP_SUCCESS) {
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/*ldap_perror(ld, "ldap_bind"); */
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printf (_("Could not bind to the ldap-server\n"));
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return STATE_CRITICAL;
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}
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/* do a search of all objectclasses in the base dn */
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if (ldap_search_s (ld, ld_base, LDAP_SCOPE_BASE, ld_attr, NULL, 0, &result)
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!= LDAP_SUCCESS) {
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/*ldap_perror(ld, "ldap_search"); */
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printf (_("Could not search/find objectclasses in %s\n"), ld_base);
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return STATE_CRITICAL;
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}
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/* unbind from the ldap server */
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ldap_unbind (ld);
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/* reset the alarm handler */
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alarm (0);
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/* calcutate the elapsed time and compare to thresholds */
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microsec = deltime (tv);
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elapsed_time = (double)microsec / 1.0e6;
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if (crit_time!=UNDEFINED && elapsed_time>crit_time)
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status = STATE_CRITICAL;
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else if (warn_time!=UNDEFINED && elapsed_time>warn_time)
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status = STATE_WARNING;
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else
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status = STATE_OK;
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/* print out the result */
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printf (_("LDAP %s - %.3f seconds response time|%s\n"),
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state_text (status),
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elapsed_time,
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fperfdata ("time", elapsed_time, "s",
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(int)warn_time, warn_time,
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(int)crit_time, crit_time,
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TRUE, 0, FALSE, 0));
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return status;
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}
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/* process command-line arguments */
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int
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process_arguments (int argc, char **argv)
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{
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int c;
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int option = 0;
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/* initialize the long option struct */
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static struct option longopts[] = {
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{"help", no_argument, 0, 'h'},
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{"version", no_argument, 0, 'V'},
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{"timeout", required_argument, 0, 't'},
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{"host", required_argument, 0, 'H'},
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{"base", required_argument, 0, 'b'},
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{"attr", required_argument, 0, 'a'},
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{"bind", required_argument, 0, 'D'},
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{"pass", required_argument, 0, 'P'},
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#ifdef HAVE_LDAP_SET_OPTION
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{"ver2", no_argument, 0, '2'},
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{"ver3", no_argument, 0, '3'},
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#endif
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{"use-ipv4", no_argument, 0, '4'},
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{"use-ipv6", no_argument, 0, '6'},
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{"port", required_argument, 0, 'p'},
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{"warn", required_argument, 0, 'w'},
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{"crit", required_argument, 0, 'c'},
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{0, 0, 0, 0}
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};
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if (argc < 2)
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return ERROR;
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for (c = 1; c < argc; c++) {
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if (strcmp ("-to", argv[c]) == 0)
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strcpy (argv[c], "-t");
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}
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while (1) {
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c = getopt_long (argc, argv, "hV2346t:c:w:H:b:p:a:D:P:", longopts, &option);
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if (c == -1 || c == EOF)
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break;
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switch (c) {
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case 'h': /* help */
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print_help ();
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exit (STATE_OK);
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case 'V': /* version */
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print_revision (progname, revision);
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exit (STATE_OK);
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case 't': /* timeout period */
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if (!is_intnonneg (optarg))
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usage2 (_("Timeout interval must be a positive integer"), optarg);
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else
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socket_timeout = atoi (optarg);
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break;
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case 'H':
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ld_host = optarg;
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break;
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case 'b':
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ld_base = optarg;
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break;
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case 'p':
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ld_port = atoi (optarg);
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break;
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case 'a':
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ld_attr = optarg;
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break;
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case 'D':
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ld_binddn = optarg;
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break;
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case 'P':
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ld_passwd = optarg;
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break;
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case 'w':
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warn_time = strtod (optarg, NULL);
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break;
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case 'c':
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crit_time = strtod (optarg, NULL);
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break;
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#ifdef HAVE_LDAP_SET_OPTION
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case '2':
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ld_protocol = 2;
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break;
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case '3':
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ld_protocol = 3;
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break;
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#endif
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case '4':
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address_family = AF_INET;
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break;
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case '6':
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#ifdef USE_IPV6
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address_family = AF_INET6;
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#else
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usage (_("IPv6 support not available\n"));
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#endif
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break;
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default:
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usage2 (_("Unknown argument"), optarg);
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}
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}
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c = optind;
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if (ld_host == NULL && is_host(argv[c]))
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ld_host = strdup (argv[c++]);
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if (ld_base == NULL && argv[c])
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ld_base = strdup (argv[c++]);
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return validate_arguments ();
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}
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int
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validate_arguments ()
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{
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if (ld_host==NULL || strlen(ld_host)==0)
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usage4 (_("Please specify the host name\n"));
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if (ld_base==NULL || strlen(ld_base)==0)
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usage4 (_("Please specify the LDAP base\n"));
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return OK;
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}
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void
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print_help (void)
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{
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char *myport;
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asprintf (&myport, "%d", DEFAULT_PORT);
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print_revision (progname, revision);
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printf ("Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)\n");
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printf (COPYRIGHT, copyright, email);
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printf ("\n\n");
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print_usage ();
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printf (_(UT_HELP_VRSN));
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printf (_(UT_HOST_PORT), 'p', myport);
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printf (_(UT_IPv46));
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printf (" %s\n", "-a [--attr]");
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printf (" %s\n", _("ldap attribute to search (default: \"(objectclass=*)\""));
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printf (" %s\n", "-b [--base]");
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printf (" %s\n", _("ldap base (eg. ou=my unit, o=my org, c=at"));
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printf (" %s\n," "-D [--bind]");
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printf (" %s\n", _("ldap bind DN (if required)"));
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printf (" %s\n," "-P [--pass]");
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printf (" %s\n", _("ldap password (if required)"));
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#ifdef HAVE_LDAP_SET_OPTION
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printf (" %s\n", "-2 [--ver2]");
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printf (" %s\n", _("use ldap protocol version 2"));
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printf (" %s\n", "-3 [--ver3]");
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printf (" %s\n", _("use ldap protocol version 3"));
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printf ("(default protocol version: %d)", DEFAULT_PROTOCOL);
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#endif
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printf (_(UT_WARN_CRIT));
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printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
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printf (_(UT_VERBOSE));
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printf (_(UT_SUPPORT));
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}
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/* todo
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* add option -4 and -6 to the long manual
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*
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*/
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void
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print_usage (void)
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{
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printf (_("Usage:"));
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printf (" %s -H <host> -b <base_dn> [-p <port>] [-a <attr>] [-D <binddn>]",progname);
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printf ("[-P <password>] [-w <warn_time>] [-c <crit_time>] [-t timeout]\n",
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#ifdef HAVE_LDAP_SET_OPTION
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" [-2|-3] [-4|-6]"
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#else
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""
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#endif
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);
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}
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