mirror of https://github.com/openssl/openssl.git
402 lines
12 KiB
C
402 lines
12 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include <openssl/stack.h>
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#include "internal/cryptlib.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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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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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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int X509_NAME_get_text_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, char *buf,
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int len)
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{
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int i;
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ASN1_STRING *data;
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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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i = (data->length > (len - 1)) ? (len - 1) : data->length;
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if (buf == NULL)
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return (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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int X509_NAME_entry_count(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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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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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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/* NOTE: you should be passing -1, not 0 as lastpos */
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int X509_NAME_get_index_by_OBJ(X509_NAME *name, 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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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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X509_NAME_ENTRY *X509_NAME_get_entry(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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else
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return (sk_X509_NAME_ENTRY_value(name->entries, loc));
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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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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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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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/* 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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* 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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int X509_NAME_add_entry_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int type,
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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_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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int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
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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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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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* 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, 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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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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name->modified = 1;
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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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inc = 0;
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}
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} else { /* if (set >= 0) */
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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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inc = (set == 0) ? 1 : 0;
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}
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if ((new_name = X509_NAME_ENTRY_dup(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 - 1)->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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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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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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X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
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int type, 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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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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X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
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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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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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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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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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int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, 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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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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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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ASN1_OBJECT *X509_NAME_ENTRY_get_object(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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ASN1_STRING *X509_NAME_ENTRY_get_data(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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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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