ref: 464763202be7bdafa703c8c2ecfe1f4a5142f26f
dir: /sys/src/ape/lib/openssl/crypto/x509/x509_att.c/
/* crypto/x509/x509_att.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 <stdio.h>
#include <openssl/stack.h>
#include "cryptlib.h"
#include <openssl/asn1.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
{
if (!x) return 0;
return(sk_X509_ATTRIBUTE_num(x));
}
int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
int lastpos)
{
ASN1_OBJECT *obj;
obj=OBJ_nid2obj(nid);
if (obj == NULL) return(-2);
return(X509at_get_attr_by_OBJ(x,obj,lastpos));
}
int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk, ASN1_OBJECT *obj,
int lastpos)
{
int n;
X509_ATTRIBUTE *ex;
if (sk == NULL) return(-1);
lastpos++;
if (lastpos < 0)
lastpos=0;
n=sk_X509_ATTRIBUTE_num(sk);
for ( ; lastpos < n; lastpos++)
{
ex=sk_X509_ATTRIBUTE_value(sk,lastpos);
if (OBJ_cmp(ex->object,obj) == 0)
return(lastpos);
}
return(-1);
}
X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)
{
if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
return NULL;
else
return sk_X509_ATTRIBUTE_value(x,loc);
}
X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
{
X509_ATTRIBUTE *ret;
if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
return(NULL);
ret=sk_X509_ATTRIBUTE_delete(x,loc);
return(ret);
}
STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
X509_ATTRIBUTE *attr)
{
X509_ATTRIBUTE *new_attr=NULL;
STACK_OF(X509_ATTRIBUTE) *sk=NULL;
if (x == NULL)
{
X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_PASSED_NULL_PARAMETER);
goto err2;
}
if (*x == NULL)
{
if ((sk=sk_X509_ATTRIBUTE_new_null()) == NULL)
goto err;
}
else
sk= *x;
if ((new_attr=X509_ATTRIBUTE_dup(attr)) == NULL)
goto err2;
if (!sk_X509_ATTRIBUTE_push(sk,new_attr))
goto err;
if (*x == NULL)
*x=sk;
return(sk);
err:
X509err(X509_F_X509AT_ADD1_ATTR,ERR_R_MALLOC_FAILURE);
err2:
if (new_attr != NULL) X509_ATTRIBUTE_free(new_attr);
if (sk != NULL) sk_X509_ATTRIBUTE_free(sk);
return(NULL);
}
STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) **x,
const ASN1_OBJECT *obj, int type,
const unsigned char *bytes, int len)
{
X509_ATTRIBUTE *attr;
STACK_OF(X509_ATTRIBUTE) *ret;
attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
if(!attr) return 0;
ret = X509at_add1_attr(x, attr);
X509_ATTRIBUTE_free(attr);
return ret;
}
STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) **x,
int nid, int type,
const unsigned char *bytes, int len)
{
X509_ATTRIBUTE *attr;
STACK_OF(X509_ATTRIBUTE) *ret;
attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
if(!attr) return 0;
ret = X509at_add1_attr(x, attr);
X509_ATTRIBUTE_free(attr);
return ret;
}
STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) **x,
const char *attrname, int type,
const unsigned char *bytes, int len)
{
X509_ATTRIBUTE *attr;
STACK_OF(X509_ATTRIBUTE) *ret;
attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
if(!attr) return 0;
ret = X509at_add1_attr(x, attr);
X509_ATTRIBUTE_free(attr);
return ret;
}
X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
int atrtype, const void *data, int len)
{
ASN1_OBJECT *obj;
X509_ATTRIBUTE *ret;
obj=OBJ_nid2obj(nid);
if (obj == NULL)
{
X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID,X509_R_UNKNOWN_NID);
return(NULL);
}
ret=X509_ATTRIBUTE_create_by_OBJ(attr,obj,atrtype,data,len);
if (ret == NULL) ASN1_OBJECT_free(obj);
return(ret);
}
X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
const ASN1_OBJECT *obj, int atrtype, const void *data, int len)
{
X509_ATTRIBUTE *ret;
if ((attr == NULL) || (*attr == NULL))
{
if ((ret=X509_ATTRIBUTE_new()) == NULL)
{
X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE);
return(NULL);
}
}
else
ret= *attr;
if (!X509_ATTRIBUTE_set1_object(ret,obj))
goto err;
if (!X509_ATTRIBUTE_set1_data(ret,atrtype,data,len))
goto err;
if ((attr != NULL) && (*attr == NULL)) *attr=ret;
return(ret);
err:
if ((attr == NULL) || (ret != *attr))
X509_ATTRIBUTE_free(ret);
return(NULL);
}
X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
const char *atrname, int type, const unsigned char *bytes, int len)
{
ASN1_OBJECT *obj;
X509_ATTRIBUTE *nattr;
obj=OBJ_txt2obj(atrname, 0);
if (obj == NULL)
{
X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT,
X509_R_INVALID_FIELD_NAME);
ERR_add_error_data(2, "name=", atrname);
return(NULL);
}
nattr = X509_ATTRIBUTE_create_by_OBJ(attr,obj,type,bytes,len);
ASN1_OBJECT_free(obj);
return nattr;
}
int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj)
{
if ((attr == NULL) || (obj == NULL))
return(0);
ASN1_OBJECT_free(attr->object);
attr->object=OBJ_dup(obj);
return(1);
}
int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, const void *data, int len)
{
ASN1_TYPE *ttmp;
ASN1_STRING *stmp;
int atype;
if (!attr) return 0;
if(attrtype & MBSTRING_FLAG) {
stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
OBJ_obj2nid(attr->object));
if(!stmp) {
X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_ASN1_LIB);
return 0;
}
atype = stmp->type;
} else {
if(!(stmp = ASN1_STRING_type_new(attrtype))) goto err;
if(!ASN1_STRING_set(stmp, data, len)) goto err;
atype = attrtype;
}
if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err;
if(!(ttmp = ASN1_TYPE_new())) goto err;
if(!sk_ASN1_TYPE_push(attr->value.set, ttmp)) goto err;
attr->single = 0;
ASN1_TYPE_set(ttmp, atype, stmp);
return 1;
err:
X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_MALLOC_FAILURE);
return 0;
}
int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr)
{
if(!attr->single) return sk_ASN1_TYPE_num(attr->value.set);
if(attr->value.single) return 1;
return 0;
}
ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr)
{
if (attr == NULL) return(NULL);
return(attr->object);
}
void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
int atrtype, void *data)
{
ASN1_TYPE *ttmp;
ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
if(!ttmp) return NULL;
if(atrtype != ASN1_TYPE_get(ttmp)){
X509err(X509_F_X509_ATTRIBUTE_GET0_DATA, X509_R_WRONG_TYPE);
return NULL;
}
return ttmp->value.ptr;
}
ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx)
{
if (attr == NULL) return(NULL);
if(idx >= X509_ATTRIBUTE_count(attr)) return NULL;
if(!attr->single) return sk_ASN1_TYPE_value(attr->value.set, idx);
else return attr->value.single;
}