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			360 lines
		
	
	
	
		
			9.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			360 lines
		
	
	
	
		
			9.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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|  *
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|  * Licensed under the OpenSSL license (the "License").  You may not use
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|  * this file except in compliance with the License.  You can obtain a copy
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|  * in the file LICENSE in the source distribution or at
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|  * https://www.openssl.org/source/license.html
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|  */
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| 
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| #include <stdio.h>
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| #include "internal/cryptlib.h"
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| #include <openssl/safestack.h>
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| #include <openssl/asn1.h>
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| #include <openssl/objects.h>
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| #include <openssl/evp.h>
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| #include <openssl/x509.h>
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| #include "internal/x509_int.h"
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| 
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| int X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf, int len)
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| {
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|     ASN1_OBJECT *obj;
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| 
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|     obj = OBJ_nid2obj(nid);
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|     if (obj == NULL)
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|         return -1;
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|     return X509_NAME_get_text_by_OBJ(name, obj, buf, len);
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| }
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| 
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| int X509_NAME_get_text_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj,
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|                               char *buf, int len)
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| {
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|     int i;
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|     const ASN1_STRING *data;
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| 
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|     i = X509_NAME_get_index_by_OBJ(name, obj, -1);
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|     if (i < 0)
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|         return -1;
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|     data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
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|     if (buf == NULL)
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|         return data->length;
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|     if (len <= 0)
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|         return 0;
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|     i = (data->length > (len - 1)) ? (len - 1) : data->length;
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|     memcpy(buf, data->data, i);
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|     buf[i] = '\0';
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|     return i;
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| }
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| 
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| int X509_NAME_entry_count(const X509_NAME *name)
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| {
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|     if (name == NULL)
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|         return 0;
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|     return sk_X509_NAME_ENTRY_num(name->entries);
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| }
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| 
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| int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos)
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| {
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|     ASN1_OBJECT *obj;
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| 
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|     obj = OBJ_nid2obj(nid);
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|     if (obj == NULL)
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|         return -2;
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|     return X509_NAME_get_index_by_OBJ(name, obj, lastpos);
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| }
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| 
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| /* NOTE: you should be passing -1, not 0 as lastpos */
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| int X509_NAME_get_index_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, int lastpos)
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| {
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|     int n;
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|     X509_NAME_ENTRY *ne;
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|     STACK_OF(X509_NAME_ENTRY) *sk;
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| 
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|     if (name == NULL)
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|         return -1;
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|     if (lastpos < 0)
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|         lastpos = -1;
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|     sk = name->entries;
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|     n = sk_X509_NAME_ENTRY_num(sk);
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|     for (lastpos++; lastpos < n; lastpos++) {
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|         ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
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|         if (OBJ_cmp(ne->object, obj) == 0)
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|             return lastpos;
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|     }
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|     return -1;
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| }
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| 
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| X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc)
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| {
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|     if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
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|         || loc < 0)
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|         return NULL;
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| 
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|     return sk_X509_NAME_ENTRY_value(name->entries, loc);
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| }
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| 
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| X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
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| {
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|     X509_NAME_ENTRY *ret;
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|     int i, n, set_prev, set_next;
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|     STACK_OF(X509_NAME_ENTRY) *sk;
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| 
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|     if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
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|         || loc < 0)
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|         return NULL;
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| 
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|     sk = name->entries;
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|     ret = sk_X509_NAME_ENTRY_delete(sk, loc);
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|     n = sk_X509_NAME_ENTRY_num(sk);
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|     name->modified = 1;
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|     if (loc == n)
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|         return ret;
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| 
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|     /* else we need to fixup the set field */
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|     if (loc != 0)
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|         set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
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|     else
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|         set_prev = ret->set - 1;
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|     set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
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| 
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|     /*-
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|      * set_prev is the previous set
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|      * set is the current set
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|      * set_next is the following
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|      * prev  1 1    1 1     1 1     1 1
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|      * set   1      1       2       2
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|      * next  1 1    2 2     2 2     3 2
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|      * so basically only if prev and next differ by 2, then
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|      * re-number down by 1
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|      */
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|     if (set_prev + 1 < set_next)
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|         for (i = loc; i < n; i++)
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|             sk_X509_NAME_ENTRY_value(sk, i)->set--;
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|     return ret;
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| }
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| 
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| int X509_NAME_add_entry_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, int type,
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|                                const unsigned char *bytes, int len, int loc,
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|                                int set)
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| {
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|     X509_NAME_ENTRY *ne;
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|     int ret;
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| 
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|     ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
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|     if (!ne)
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|         return 0;
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|     ret = X509_NAME_add_entry(name, ne, loc, set);
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|     X509_NAME_ENTRY_free(ne);
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|     return ret;
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| }
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| 
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| int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
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|                                const unsigned char *bytes, int len, int loc,
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|                                int set)
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| {
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|     X509_NAME_ENTRY *ne;
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|     int ret;
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|     ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
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|     if (!ne)
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|         return 0;
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|     ret = X509_NAME_add_entry(name, ne, loc, set);
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|     X509_NAME_ENTRY_free(ne);
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|     return ret;
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| }
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| 
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| int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
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|                                const unsigned char *bytes, int len, int loc,
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|                                int set)
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| {
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|     X509_NAME_ENTRY *ne;
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|     int ret;
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|     ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
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|     if (!ne)
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|         return 0;
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|     ret = X509_NAME_add_entry(name, ne, loc, set);
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|     X509_NAME_ENTRY_free(ne);
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|     return ret;
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| }
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| 
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| /*
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|  * if set is -1, append to previous set, 0 'a new one', and 1, prepend to the
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|  * guy we are about to stomp on.
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|  */
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| int X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne, int loc,
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|                         int set)
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| {
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|     X509_NAME_ENTRY *new_name = NULL;
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|     int n, i, inc;
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|     STACK_OF(X509_NAME_ENTRY) *sk;
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| 
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|     if (name == NULL)
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|         return 0;
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|     sk = name->entries;
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|     n = sk_X509_NAME_ENTRY_num(sk);
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|     if (loc > n)
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|         loc = n;
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|     else if (loc < 0)
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|         loc = n;
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|     inc = (set == 0);
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|     name->modified = 1;
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| 
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|     if (set == -1) {
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|         if (loc == 0) {
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|             set = 0;
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|             inc = 1;
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|         } else {
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|             set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
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|         }
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|     } else {                    /* if (set >= 0) */
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| 
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|         if (loc >= n) {
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|             if (loc != 0)
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|                 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
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|             else
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|                 set = 0;
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|         } else
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|             set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
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|     }
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| 
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|     /*
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|      * X509_NAME_ENTRY_dup is ASN1 generated code, that can't be easily
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|      * const'ified; harmless cast since dup() don't modify its input.
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|      */
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|     if ((new_name = X509_NAME_ENTRY_dup((X509_NAME_ENTRY *)ne)) == NULL)
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|         goto err;
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|     new_name->set = set;
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|     if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
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|         X509err(X509_F_X509_NAME_ADD_ENTRY, ERR_R_MALLOC_FAILURE);
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|         goto err;
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|     }
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|     if (inc) {
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|         n = sk_X509_NAME_ENTRY_num(sk);
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|         for (i = loc + 1; i < n; i++)
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|             sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
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|     }
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|     return 1;
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|  err:
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|     X509_NAME_ENTRY_free(new_name);
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|     return 0;
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| }
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| 
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| X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
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|                                                const char *field, int type,
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|                                                const unsigned char *bytes,
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|                                                int len)
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| {
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|     ASN1_OBJECT *obj;
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|     X509_NAME_ENTRY *nentry;
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| 
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|     obj = OBJ_txt2obj(field, 0);
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|     if (obj == NULL) {
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|         X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_TXT,
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|                 X509_R_INVALID_FIELD_NAME);
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|         ERR_add_error_data(2, "name=", field);
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|         return NULL;
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|     }
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|     nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
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|     ASN1_OBJECT_free(obj);
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|     return nentry;
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| }
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| 
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| X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
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|                                                int type,
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|                                                const unsigned char *bytes,
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|                                                int len)
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| {
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|     ASN1_OBJECT *obj;
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|     X509_NAME_ENTRY *nentry;
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| 
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|     obj = OBJ_nid2obj(nid);
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|     if (obj == NULL) {
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|         X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_NID, X509_R_UNKNOWN_NID);
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|         return NULL;
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|     }
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|     nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
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|     ASN1_OBJECT_free(obj);
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|     return nentry;
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| }
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| 
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| X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
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|                                                const ASN1_OBJECT *obj, int type,
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|                                                const unsigned char *bytes,
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|                                                int len)
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| {
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|     X509_NAME_ENTRY *ret;
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| 
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|     if ((ne == NULL) || (*ne == NULL)) {
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|         if ((ret = X509_NAME_ENTRY_new()) == NULL)
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|             return NULL;
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|     } else
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|         ret = *ne;
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| 
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|     if (!X509_NAME_ENTRY_set_object(ret, obj))
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|         goto err;
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|     if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
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|         goto err;
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| 
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|     if ((ne != NULL) && (*ne == NULL))
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|         *ne = ret;
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|     return ret;
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|  err:
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|     if ((ne == NULL) || (ret != *ne))
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|         X509_NAME_ENTRY_free(ret);
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|     return NULL;
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| }
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| 
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| int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj)
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| {
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|     if ((ne == NULL) || (obj == NULL)) {
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|         X509err(X509_F_X509_NAME_ENTRY_SET_OBJECT,
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|                 ERR_R_PASSED_NULL_PARAMETER);
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|         return 0;
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|     }
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|     ASN1_OBJECT_free(ne->object);
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|     ne->object = OBJ_dup(obj);
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|     return ((ne->object == NULL) ? 0 : 1);
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| }
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| 
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| int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
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|                              const unsigned char *bytes, int len)
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| {
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|     int i;
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| 
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|     if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
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|         return 0;
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|     if ((type > 0) && (type & MBSTRING_FLAG))
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|         return ASN1_STRING_set_by_NID(&ne->value, bytes,
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|                                       len, type,
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|                                       OBJ_obj2nid(ne->object)) ? 1 : 0;
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|     if (len < 0)
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|         len = strlen((const char *)bytes);
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|     i = ASN1_STRING_set(ne->value, bytes, len);
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|     if (!i)
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|         return 0;
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|     if (type != V_ASN1_UNDEF) {
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|         if (type == V_ASN1_APP_CHOOSE)
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|             ne->value->type = ASN1_PRINTABLE_type(bytes, len);
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|         else
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|             ne->value->type = type;
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|     }
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|     return 1;
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| }
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| 
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| ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
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| {
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|     if (ne == NULL)
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|         return NULL;
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|     return ne->object;
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| }
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| 
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| ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
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| {
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|     if (ne == NULL)
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|         return NULL;
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|     return ne->value;
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| }
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| 
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| int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)
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| {
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|     return ne->set;
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| }
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