ref: bfe9da47cfa2f51ebef78c59332b5ba2deba306d
dir: /third_party/boringssl/src/crypto/x509/x509name.c/
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.] */
#include <string.h>
#include <openssl/asn1.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/obj.h>
#include <openssl/stack.h>
#include <openssl/x509.h>
#include "../internal.h"
#include "internal.h"
int X509_NAME_get_text_by_NID(const X509_NAME *name, int nid, char *buf,
int len)
{
const ASN1_OBJECT *obj;
obj = OBJ_nid2obj(nid);
if (obj == NULL)
return (-1);
return (X509_NAME_get_text_by_OBJ(name, obj, buf, len));
}
int X509_NAME_get_text_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
char *buf, int len)
{
int i;
ASN1_STRING *data;
i = X509_NAME_get_index_by_OBJ(name, obj, -1);
if (i < 0)
return (-1);
data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
i = (data->length > (len - 1)) ? (len - 1) : data->length;
if (buf == NULL)
return (data->length);
OPENSSL_memcpy(buf, data->data, i);
buf[i] = '\0';
return (i);
}
int X509_NAME_entry_count(const X509_NAME *name)
{
if (name == NULL)
return (0);
return (sk_X509_NAME_ENTRY_num(name->entries));
}
int X509_NAME_get_index_by_NID(const X509_NAME *name, int nid, int lastpos)
{
const ASN1_OBJECT *obj;
obj = OBJ_nid2obj(nid);
if (obj == NULL)
return (-2);
return (X509_NAME_get_index_by_OBJ(name, obj, lastpos));
}
/* NOTE: you should be passsing -1, not 0 as lastpos */
int X509_NAME_get_index_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
int lastpos)
{
int n;
X509_NAME_ENTRY *ne;
STACK_OF(X509_NAME_ENTRY) *sk;
if (name == NULL)
return (-1);
if (lastpos < 0)
lastpos = -1;
sk = name->entries;
n = sk_X509_NAME_ENTRY_num(sk);
for (lastpos++; lastpos < n; lastpos++) {
ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
if (OBJ_cmp(ne->object, obj) == 0)
return (lastpos);
}
return (-1);
}
X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc)
{
if (name == NULL || loc < 0
|| sk_X509_NAME_ENTRY_num(name->entries) <= (size_t)loc)
return (NULL);
else
return (sk_X509_NAME_ENTRY_value(name->entries, loc));
}
X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
{
X509_NAME_ENTRY *ret;
int i, n, set_prev, set_next;
STACK_OF(X509_NAME_ENTRY) *sk;
if (name == NULL || loc < 0
|| sk_X509_NAME_ENTRY_num(name->entries) <= (size_t)loc)
return (NULL);
sk = name->entries;
ret = sk_X509_NAME_ENTRY_delete(sk, loc);
n = sk_X509_NAME_ENTRY_num(sk);
name->modified = 1;
if (loc == n)
return (ret);
/* else we need to fixup the set field */
if (loc != 0)
set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
else
set_prev = ret->set - 1;
set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
/*
* set_prev is the previous set set is the current set set_next is the
* following prev 1 1 1 1 1 1 1 1 set 1 1 2 2 next 1 1 2 2 2 2 3 2 so
* basically only if prev and next differ by 2, then re-number down by 1
*/
if (set_prev + 1 < set_next)
for (i = loc; i < n; i++)
sk_X509_NAME_ENTRY_value(sk, i)->set--;
return (ret);
}
int X509_NAME_add_entry_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int type,
const unsigned char *bytes, int len, int loc,
int set)
{
X509_NAME_ENTRY *ne;
int ret;
ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
if (!ne)
return 0;
ret = X509_NAME_add_entry(name, ne, loc, set);
X509_NAME_ENTRY_free(ne);
return ret;
}
int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
const unsigned char *bytes, int len, int loc,
int set)
{
X509_NAME_ENTRY *ne;
int ret;
ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
if (!ne)
return 0;
ret = X509_NAME_add_entry(name, ne, loc, set);
X509_NAME_ENTRY_free(ne);
return ret;
}
int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
const unsigned char *bytes, int len, int loc,
int set)
{
X509_NAME_ENTRY *ne;
int ret;
ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
if (!ne)
return 0;
ret = X509_NAME_add_entry(name, ne, loc, set);
X509_NAME_ENTRY_free(ne);
return ret;
}
/*
* if set is -1, append to previous set, 0 'a new one', and 1, prepend to the
* guy we are about to stomp on.
*/
int X509_NAME_add_entry(X509_NAME *name, X509_NAME_ENTRY *ne, int loc,
int set)
{
X509_NAME_ENTRY *new_name = NULL;
int n, i, inc;
STACK_OF(X509_NAME_ENTRY) *sk;
if (name == NULL)
return (0);
sk = name->entries;
n = sk_X509_NAME_ENTRY_num(sk);
if (loc > n)
loc = n;
else if (loc < 0)
loc = n;
inc = (set == 0);
name->modified = 1;
if (set == -1) {
if (loc == 0) {
set = 0;
inc = 1;
} else {
set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
}
} else { /* if (set >= 0) */
if (loc >= n) {
if (loc != 0)
set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
else
set = 0;
} else
set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
}
if ((new_name = X509_NAME_ENTRY_dup(ne)) == NULL)
goto err;
new_name->set = set;
if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
goto err;
}
if (inc) {
n = sk_X509_NAME_ENTRY_num(sk);
for (i = loc + 1; i < n; i++)
sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
}
return (1);
err:
if (new_name != NULL)
X509_NAME_ENTRY_free(new_name);
return (0);
}
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
const char *field, int type,
const unsigned char *bytes,
int len)
{
ASN1_OBJECT *obj;
X509_NAME_ENTRY *nentry;
obj = OBJ_txt2obj(field, 0);
if (obj == NULL) {
OPENSSL_PUT_ERROR(X509, X509_R_INVALID_FIELD_NAME);
ERR_add_error_data(2, "name=", field);
return (NULL);
}
nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
ASN1_OBJECT_free(obj);
return nentry;
}
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
int type,
const unsigned char *bytes,
int len)
{
const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
if (obj == NULL) {
OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_NID);
return NULL;
}
return X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
}
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
const ASN1_OBJECT *obj,
int type,
const unsigned char *bytes,
int len)
{
X509_NAME_ENTRY *ret;
if ((ne == NULL) || (*ne == NULL)) {
if ((ret = X509_NAME_ENTRY_new()) == NULL)
return (NULL);
} else
ret = *ne;
if (!X509_NAME_ENTRY_set_object(ret, obj))
goto err;
if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
goto err;
if ((ne != NULL) && (*ne == NULL))
*ne = ret;
return (ret);
err:
if ((ne == NULL) || (ret != *ne))
X509_NAME_ENTRY_free(ret);
return (NULL);
}
int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj)
{
if ((ne == NULL) || (obj == NULL)) {
OPENSSL_PUT_ERROR(X509, ERR_R_PASSED_NULL_PARAMETER);
return (0);
}
ASN1_OBJECT_free(ne->object);
ne->object = OBJ_dup(obj);
return ((ne->object == NULL) ? 0 : 1);
}
int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
const unsigned char *bytes, int len)
{
int i;
if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
return (0);
if ((type > 0) && (type & MBSTRING_FLAG))
return ASN1_STRING_set_by_NID(&ne->value, bytes,
len, type,
OBJ_obj2nid(ne->object)) ? 1 : 0;
if (len < 0)
len = strlen((const char *)bytes);
i = ASN1_STRING_set(ne->value, bytes, len);
if (!i)
return (0);
if (type != V_ASN1_UNDEF) {
ne->value->type = type;
}
return (1);
}
ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
{
if (ne == NULL)
return (NULL);
return (ne->object);
}
ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
{
if (ne == NULL)
return (NULL);
return (ne->value);
}