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    /*	$OpenBSD: attributes.c,v 1.5 2017/02/11 20:40:03 guenther Exp $ */  | 
    
    
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    /*  | 
    
    
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     * Copyright (c) 2009 Martin Hedenfalk <martin@bzero.se>  | 
    
    
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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 THE AUTHOR DISCLAIMS ALL WARRANTIES  | 
    
    
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     * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF  | 
    
    
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     * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  | 
    
    
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     * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES  | 
    
    
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     * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN  | 
    
    
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     * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  | 
    
    
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     * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  | 
    
    
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     */  | 
    
    
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    #include <sys/queue.h>  | 
    
    
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    #include <sys/types.h>  | 
    
    
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    #include <assert.h>  | 
    
    
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    #include <string.h>  | 
    
    
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    #include <time.h>  | 
    
    
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    #include "ldapd.h"  | 
    
    
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    #include "log.h"  | 
    
    
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    struct ber_element *  | 
    
    
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    ldap_get_attribute(struct ber_element *entry, const char *attr)  | 
    
    
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    { | 
    
    
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    	char			*s;  | 
    
    
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    	struct ber_element	*elm, *a;  | 
    
    
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    	assert(entry);  | 
    
    
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    	assert(attr);  | 
    
    
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    	if (entry->be_encoding != BER_TYPE_SEQUENCE)  | 
    
    
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    		return NULL;  | 
    
    
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    	for (elm = entry->be_sub; elm != NULL; elm = elm->be_next) { | 
    
    
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    		a = elm->be_sub;  | 
    
    
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    		if (a && ber_get_string(a, &s) == 0 && strcasecmp(s, attr) == 0)  | 
    
    
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    			return a;  | 
    
    
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    	}  | 
    
    
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    	return NULL;  | 
    
    
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    }  | 
    
    
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    struct ber_element *  | 
    
    
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    ldap_find_attribute(struct ber_element *entry, struct attr_type *at)  | 
    
    
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    { | 
    
    
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    	struct ber_element	*elm = NULL;  | 
    
    
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    	struct name		*an;  | 
    
    
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    	SLIST_FOREACH(an, at->names, next) { | 
    
    
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    		if ((elm = ldap_get_attribute(entry, an->name)) != NULL)  | 
    
    
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    			return elm;  | 
    
    
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    	}  | 
    
    
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    	if (an == NULL)  | 
    
    
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    		elm = ldap_get_attribute(entry, at->oid);  | 
    
    
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    	return elm;  | 
    
    
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    }  | 
    
    
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    struct ber_element *  | 
    
    
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    ldap_find_value(struct ber_element *elm, const char *value)  | 
    
    
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    { | 
    
    
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    	char			*s;  | 
    
    
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    	struct ber_element	*a;  | 
    
    
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    	if (elm == NULL)  | 
    
    
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    		return NULL;  | 
    
    
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    	for (a = elm->be_sub; a != NULL; a = a->be_next) { | 
    
    
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    		if (ber_get_string(a, &s) == 0 && strcasecmp(s, value) == 0)  | 
    
    
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    			return a;  | 
    
    
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    	}  | 
    
    
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    	return NULL;  | 
    
    
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    }  | 
    
    
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    struct ber_element *  | 
    
    
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    ldap_add_attribute(struct ber_element *entry, const char *attr,  | 
    
    
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    	struct ber_element *value_set)  | 
    
    
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    { | 
    
    
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    	struct ber_element	*elm, *a, *last;  | 
    
    
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    	assert(entry);  | 
    
    
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    	assert(attr);  | 
    
    
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    	assert(value_set);  | 
    
    
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    	if (entry->be_encoding != BER_TYPE_SEQUENCE) { | 
    
    
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    		log_warnx("entries should be a sequence"); | 
    
    
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    		return NULL;  | 
    
    
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    	}  | 
    
    
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    	if (value_set->be_type != BER_TYPE_SET) { | 
    
    
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    		log_warnx("values should be a set"); | 
    
    
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    		return NULL;  | 
    
    
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    	}  | 
    
    
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    	last = entry->be_sub;  | 
    
    
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    	if (last == NULL)  | 
    
    
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    		last = entry;  | 
    
    
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    	else while (last != NULL && last->be_next != NULL)  | 
    
    
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    		last = last->be_next;  | 
    
    
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    	if ((elm = ber_add_sequence(last)) == NULL)  | 
    
    
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    		return NULL;  | 
    
    
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    	if ((a = ber_add_string(elm, attr)) == NULL) { | 
    
    
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    		ber_free_elements(elm);  | 
    
    
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    		return NULL;  | 
    
    
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    	}  | 
    
    
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    	ber_link_elements(a, value_set);  | 
    
    
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    	return elm;  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    ldap_set_values(struct ber_element *elm, struct ber_element *vals)  | 
    
    
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    { | 
    
    
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    	char			*attr;  | 
    
    
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    	struct ber_element	*old_vals;  | 
    
    
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    	assert(elm);  | 
    
    
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    	assert(vals);  | 
    
    
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    	assert(vals->be_sub);  | 
    
    
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    	if (ber_scanf_elements(elm, "se(", &attr, &old_vals) != 0) { | 
    
    
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    		log_warnx("failed to parse element"); | 
    
    
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    		return -1;  | 
    
    
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    	}  | 
    
    
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    	ber_free_elements(old_vals->be_sub);  | 
    
    
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    	old_vals->be_sub = NULL;  | 
    
    
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    	ber_link_elements(old_vals, vals->be_sub);  | 
    
    
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    	vals->be_sub = NULL;  | 
    
    
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    	ber_free_elements(vals);  | 
    
    
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    	return 0;  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    ldap_merge_values(struct ber_element *elm, struct ber_element *vals)  | 
    
    
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    { | 
    
    
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    	char			*attr;  | 
    
    
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    	struct ber_element	*old_vals, *last;  | 
    
    
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    	assert(elm);  | 
    
    
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    	assert(vals);  | 
    
    
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    	assert(vals->be_type == BER_TYPE_SET);  | 
    
    
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    	assert(vals->be_sub);  | 
    
    
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    	if (ber_scanf_elements(elm, "se(", &attr, &old_vals) != 0) { | 
    
    
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    		log_warnx("failed to parse element"); | 
    
    
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    		return -1;  | 
    
    
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    	}  | 
    
    
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    	last = old_vals->be_sub;  | 
    
    
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    	while (last && last->be_next)  | 
    
    
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    		last = last->be_next;  | 
    
    
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    	ber_link_elements(last, vals->be_sub);  | 
    
    
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    	vals->be_sub = NULL;  | 
    
    
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    	ber_free_elements(vals);  | 
    
    
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    	return 0;  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    ldap_del_attribute(struct ber_element *entry, const char *attrdesc)  | 
    
    
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    { | 
    
    
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    	struct ber_element	*attr, *prev = NULL;  | 
    
    
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    	char			*s;  | 
    
    
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    	assert(entry);  | 
    
    
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    	assert(attrdesc);  | 
    
    
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    	attr = entry->be_sub;  | 
    
    
    183  | 
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    	while (attr) { | 
    
    
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    		if (ber_scanf_elements(attr, "{s(", &s) != 0) { | 
    
    
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    			log_warnx("failed to parse attribute"); | 
    
    
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    			return -1;  | 
    
    
    187  | 
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    		}  | 
    
    
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    189  | 
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    		if (strcasecmp(s, attrdesc) == 0) { | 
    
    
    190  | 
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    			if (prev == NULL)  | 
    
    
    191  | 
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    				entry->be_sub = attr->be_next;  | 
    
    
    192  | 
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    			else  | 
    
    
    193  | 
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    				prev->be_next = attr->be_next;  | 
    
    
    194  | 
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    			attr->be_next = NULL;  | 
    
    
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    			ber_free_elements(attr);  | 
    
    
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    			break;  | 
    
    
    197  | 
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    		}  | 
    
    
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    		prev = attr;  | 
    
    
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    		attr = attr->be_next;  | 
    
    
    201  | 
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    	}  | 
    
    
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    	return 0;  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    ldap_del_values(struct ber_element *elm, struct ber_element *vals)  | 
    
    
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    { | 
    
    
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    	char			*attr;  | 
    
    
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    	struct ber_element	*old_vals, *v, *x, *prev, *next;  | 
    
    
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    	struct ber_element	*removed;  | 
    
    
    212  | 
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    	int			removed_p;  | 
    
    
    213  | 
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    	assert(elm);  | 
    
    
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    	assert(vals);  | 
    
    
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    	assert(vals->be_sub);  | 
    
    
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    	if (ber_scanf_elements(elm, "se(", &attr, &old_vals) != 0) { | 
    
    
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    		log_warnx("failed to parse element"); | 
    
    
    219  | 
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    		return -1;  | 
    
    
    220  | 
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    	}  | 
    
    
    221  | 
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    222  | 
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    	prev = old_vals;  | 
    
    
    223  | 
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    	removed_p = 0;  | 
    
    
    224  | 
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    	for (v = old_vals->be_sub; v; v = next) { | 
    
    
    225  | 
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    		next = v->be_next;  | 
    
    
    226  | 
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    227  | 
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    		for (x = vals->be_sub; x; x = x->be_next) { | 
    
    
    228  | 
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    			if (x && v->be_len == x->be_len &&  | 
    
    
    229  | 
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    			    memcmp(v->be_val, x->be_val, x->be_len) == 0) { | 
    
    
    230  | 
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    				removed = ber_unlink_elements(prev);  | 
    
    
    231  | 
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    				ber_link_elements(prev, removed->be_next);  | 
    
    
    232  | 
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    				ber_free_element(removed);  | 
    
    
    233  | 
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    				removed_p = 1;  | 
    
    
    234  | 
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    				break;  | 
    
    
    235  | 
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    			}  | 
    
    
    236  | 
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    		}  | 
    
    
    237  | 
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    		if (removed_p) { | 
    
    
    238  | 
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    			removed_p = 0;  | 
    
    
    239  | 
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    		} else { | 
    
    
    240  | 
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    			prev = v;  | 
    
    
    241  | 
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    		}  | 
    
    
    242  | 
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    	}  | 
    
    
    243  | 
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    244  | 
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    	return 0;  | 
    
    
    245  | 
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    }  | 
    
    
    246  | 
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    247  | 
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    char *  | 
    
    
    248  | 
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    ldap_strftime(time_t tm)  | 
    
    
    249  | 
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    { | 
    
    
    250  | 
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    	static char	 tmbuf[16];  | 
    
    
    251  | 
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    	struct tm	*gmt = gmtime(&tm);  | 
    
    
    252  | 
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    253  | 
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    	strftime(tmbuf, sizeof(tmbuf), "%Y%m%d%H%M%SZ", gmt);  | 
    
    
    254  | 
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    	return tmbuf;  | 
    
    
    255  | 
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    }  | 
    
    
    256  | 
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    257  | 
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    char *  | 
    
    
    258  | 
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    ldap_now(void)  | 
    
    
    259  | 
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    { | 
    
    
    260  | 
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    	return ldap_strftime(time(0));  | 
    
    
    261  | 
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    }  | 
    
    
    262  | 
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