#ifdef 0 timezone hack

servers/slapd/back-monitor/time.c

+/* time.c - deal with time subsystem */
+/*
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+/*
+ * Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
+ * 
+ * This work has beed deveolped for the OpenLDAP Foundation 
+ * in the hope that it may be useful to the Open Source community, 
+ * but WITHOUT ANY WARRANTY.
+ * 
+ * Permission is granted to anyone to use this software for any purpose
+ * on any computer system, and to alter it and redistribute it, subject
+ * to the following restrictions:
+ * 
+ * 1. The author and SysNet s.n.c. are not responsible for the consequences
+ *    of use of this software, no matter how awful, even if they arise from
+ *    flaws in it.
+ * 
+ * 2. The origin of this software must not be misrepresented, either by
+ *    explicit claim or by omission.  Since few users ever read sources,
+ *    credits should appear in the documentation.
+ * 
+ * 3. Altered versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.  Since few users
+ *    ever read sources, credits should appear in the documentation.
+ *    SysNet s.n.c. cannot be responsible for the consequences of the
+ *    alterations.
+ * 
+ * 4. This notice may not be removed or altered.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+#include "slap.h"
+#include "proto-slap.h"
+#include "back-monitor.h"
+
+static int
+local_time( const struct tm *ztm, long delta, char *buf, size_t len );
+
+int
+monitor_subsys_time_init(
+	BackendDB		*be
+)
+{
+	struct monitorinfo	*mi;
+	
+	Entry			*e, *e_tmp, *e_time;
+	struct monitorentrypriv	*mp;
+	char			buf[1024], ztmbuf[20], ltmbuf[20];
+	struct tm		*ztm, *ltm;
+
+	/*
+	 * Note: ltmbuf, ltm are used only if HACK_LOCAL_TIME is defined
+	 */
+
+	assert( be != NULL );
+
+	mi = ( struct monitorinfo * )be->be_private;
+
+	if ( monitor_cache_get( mi,
+			&monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn, &e_time ) ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
+			"monitor_subsys_time_init: "
+			"unable to get entry '%s'\n",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val ));
+#else
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_subsys_time_init: "
+			"unable to get entry '%s'\n%s%s",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val, 
+			"", "" );
+#endif
+		return( -1 );
+	}
+
+	e_tmp = NULL;
+
+	/*
+	 * Start
+	 */
+	ldap_pvt_thread_mutex_lock( &gmtime_mutex );
+	ztm = gmtime( &starttime );
+	strftime( ztmbuf, sizeof(ztmbuf), "%Y%m%d%H%M%SZ", ztm );
+#ifdef HACK_LOCAL_TIME
+	ltm = localtime( &starttime );
+	local_time( ltm, -timezone, ltmbuf, sizeof( ltmbuf ) );
+#endif /* HACK_LOCAL_TIME */
+	ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
+	snprintf( buf, sizeof( buf ),
+			"dn: cn=Start,%s\n"
+			SLAPD_MONITOR_OBJECTCLASSES
+			"cn: Start\n"
+			"description: %s\n"
+#ifdef HACK_LOCAL_TIME
+			"description;lang-x-local: %s"
+#endif /* HACK_LOCAL_TIME */
+			, monitor_subsys[SLAPD_MONITOR_TIME].mss_dn.bv_val,
+			ztmbuf
+#ifdef HACK_LOCAL_TIME
+			, ltmbuf 
+#endif /* HACK_LOCAL_TIME */
+			);
+
+	e = str2entry( buf );
+	if ( e == NULL ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
+			"monitor_subsys_time_init: "
+			"unable to create entry 'cn=Start,%s'\n",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val ));
+#else
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_subsys_time_init: "
+			"unable to create entry 'cn=Start,%s'\n%s%s",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val,
+			"", "" );
+#endif
+		return( -1 );
+	}
+	
+	mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
+	e->e_private = ( void * )mp;
+	mp->mp_next = e_tmp;
+	mp->mp_children = NULL;
+	mp->mp_info = &monitor_subsys[SLAPD_MONITOR_TIME];
+	mp->mp_flags = monitor_subsys[SLAPD_MONITOR_TIME].mss_flags \
+		| MONITOR_F_SUB | MONITOR_F_PERSISTENT;
+
+	if ( monitor_cache_add( mi, e ) ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
+			"monitor_subsys_time_init: "
+			"unable to add entry 'cn=Start,%s'\n",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val ));
+#else
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_subsys_time_init: "
+			"unable to add entry 'cn=Start,%s'\n%s%s",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val,
+			"", "" );
+#endif
+		return( -1 );
+	}
+	
+	e_tmp = e;
+
+	/*
+	 * Current
+	 */
+	snprintf( buf, sizeof( buf ),
+			"dn: cn=Current,%s\n"
+			SLAPD_MONITOR_OBJECTCLASSES
+			"cn: Current\n"
+			"description: %s\n"
+#ifdef HACK_LOCAL_TIME 
+			"description;lang-x-local: %s"
+#endif /* HACK_LOCAL_TIME */
+			, monitor_subsys[SLAPD_MONITOR_TIME].mss_dn.bv_val,
+			ztmbuf
+#ifdef HACK_LOCAL_TIME
+			, ltmbuf
+#endif /* HACK_LOCAL_TIME */
+			);
+
+	e = str2entry( buf );
+	if ( e == NULL ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
+			"monitor_subsys_time_init: "
+			"unable to create entry 'cn=Current,%s'\n",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val ));
+#else
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_subsys_time_init: "
+			"unable to create entry 'cn=Current,%s'\n%s%s",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val,
+			"", "" );
+#endif
+		return( -1 );
+	}
+	
+	mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
+	e->e_private = ( void * )mp;
+	mp->mp_next = e_tmp;
+	mp->mp_children = NULL;
+	mp->mp_info = &monitor_subsys[SLAPD_MONITOR_TIME];
+	mp->mp_flags = monitor_subsys[SLAPD_MONITOR_TIME].mss_flags \
+		| MONITOR_F_SUB | MONITOR_F_PERSISTENT;
+
+	if ( monitor_cache_add( mi, e ) ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
+			"monitor_subsys_time_init: "
+			"unable to add entry 'cn=Current,%s'\n",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val ));
+#else
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_subsys_time_init: "
+			"unable to add entry 'cn=Current,%s'\n%s%s",
+			monitor_subsys[SLAPD_MONITOR_TIME].mss_ndn.bv_val,
+			"", "" );
+#endif
+		return( -1 );
+	}
+	
+	e_tmp = e;
+
+	mp = ( struct monitorentrypriv * )e_time->e_private;
+	mp->mp_children = e_tmp;
+
+	monitor_cache_release( mi, e_time );
+
+	return( 0 );
+}
+
+int
+monitor_subsys_time_update(
+	struct monitorinfo      *mi,
+	Entry                   *e
+)
+{
+	char		ztmbuf[20], ltmbuf[20];
+	struct tm	*ztm, *ltm;
+	time_t		currenttime;
+	Attribute	*a;
+	static AttributeDescription	*ad_local = NULL;
+	const char	*text = NULL;
+	ber_len_t	len;
+
+	static int	init_start = 0;
+
+	/*
+	 * Note: ltmbuf, ltm, ad_local, text are used only if HACK_LOCAL_TIME
+	 * 	 is defined
+	 */
+
+	assert( mi );
+	assert( e );
+	
+	if ( init_start == 0 && strncmp( e->e_nname.bv_val, "cn=START",
+				sizeof("cn=START")-1 ) == 0 ) {
+		currenttime = starttime;
+		init_start = 1;
+
+	} else if ( strncmp( e->e_nname.bv_val, "cn=CURRENT",
+				sizeof("cn=CURRENT")-1 ) == 0 ) {
+		currenttime = slap_get_time();
+
+	} else {
+		return( 0 );
+	}
+
+	ldap_pvt_thread_mutex_lock( &gmtime_mutex );
+	ztm = gmtime( &currenttime );
+	strftime( ztmbuf, sizeof( ztmbuf ), "%Y%m%d%H%M%SZ", ztm );
+#ifdef HACK_LOCAL_TIME
+	ltm = localtime( &currenttime );
+	local_time( ltm, -timezone, ltmbuf, sizeof( ltmbuf ) );
+#endif /* HACK_LOCAL_TIME */
+	ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
+
+	a = attr_find( e->e_attrs, monitor_ad_desc );
+	if ( a == NULL ) {
+		return( -1 );
+	}
+
+	len = strlen( ztmbuf );
+	assert( len == a->a_vals[0].bv_len );
+	AC_MEMCPY( a->a_vals[0].bv_val, ztmbuf, len );
+
+#ifdef HACK_LOCAL_TIME
+	if ( ad_local == NULL ) {
+		if ( slap_str2ad( "description;lang-x-local", 
+					&ad_local, &text ) != LDAP_SUCCESS ) {
+			return( -1 );
+		}
+	}
+	a = attr_find( e->e_attrs, ad_local );
+	if ( a == NULL ) {
+		return( -1 );
+	}
+
+	len = strlen( ltmbuf );
+	assert( len == a->a_vals[0].bv_len );
+	AC_MEMCPY( a->a_vals[0].bv_val, ltmbuf, len );
+#endif /* HACK_LOCAL_TIME */
+
+	return( 0 );
+}
+
+/*
+ * assumes gmtime_mutex is locked
+ */
+static int
+local_time( const struct tm *ltm, long delta, char *buf, size_t len )
+{
+	char *p;
+
+	if ( len < 20 ) {
+		return -1;
+	}
+	strftime( buf, len, "%Y%m%d%H%M%S", ltm );
+
+	p = buf + 14;
+
+	if ( delta < 0 ) {
+		p[ 0 ] = '-';
+		delta = -delta;
+	} else {
+		p[ 0 ] = '+';
+	}
+	p++;
+
+	snprintf( p, len - 15, "%02ld%02ld", delta / 3600, delta % 3600 );
+	
+	return 0;
+}
+