mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-23 16:37:30 +00:00
d83a3d71bc
Merge in RedPhone // FREEBIE
190 lines
6.1 KiB
C
190 lines
6.1 KiB
C
/* crypto/asn1/evp_asn1.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 "cryptlib.h"
|
|
#include <openssl/asn1.h>
|
|
#include <openssl/asn1_mac.h>
|
|
|
|
int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, unsigned char *data, int len)
|
|
{
|
|
ASN1_STRING *os;
|
|
|
|
if ((os=M_ASN1_OCTET_STRING_new()) == NULL) return(0);
|
|
if (!M_ASN1_OCTET_STRING_set(os,data,len)) return(0);
|
|
ASN1_TYPE_set(a,V_ASN1_OCTET_STRING,os);
|
|
return(1);
|
|
}
|
|
|
|
/* int max_len: for returned value */
|
|
int ASN1_TYPE_get_octetstring(ASN1_TYPE *a, unsigned char *data,
|
|
int max_len)
|
|
{
|
|
int ret,num;
|
|
unsigned char *p;
|
|
|
|
if ((a->type != V_ASN1_OCTET_STRING) || (a->value.octet_string == NULL))
|
|
{
|
|
ASN1err(ASN1_F_ASN1_TYPE_GET_OCTETSTRING,ASN1_R_DATA_IS_WRONG);
|
|
return(-1);
|
|
}
|
|
p=M_ASN1_STRING_data(a->value.octet_string);
|
|
ret=M_ASN1_STRING_length(a->value.octet_string);
|
|
if (ret < max_len)
|
|
num=ret;
|
|
else
|
|
num=max_len;
|
|
memcpy(data,p,num);
|
|
return(ret);
|
|
}
|
|
|
|
int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num, unsigned char *data,
|
|
int len)
|
|
{
|
|
int n,size;
|
|
ASN1_OCTET_STRING os,*osp;
|
|
ASN1_INTEGER in;
|
|
unsigned char *p;
|
|
unsigned char buf[32]; /* when they have 256bit longs,
|
|
* I'll be in trouble */
|
|
in.data=buf;
|
|
in.length=32;
|
|
os.data=data;
|
|
os.type=V_ASN1_OCTET_STRING;
|
|
os.length=len;
|
|
ASN1_INTEGER_set(&in,num);
|
|
n = i2d_ASN1_INTEGER(&in,NULL);
|
|
n+=M_i2d_ASN1_OCTET_STRING(&os,NULL);
|
|
|
|
size=ASN1_object_size(1,n,V_ASN1_SEQUENCE);
|
|
|
|
if ((osp=ASN1_STRING_new()) == NULL) return(0);
|
|
/* Grow the 'string' */
|
|
if (!ASN1_STRING_set(osp,NULL,size))
|
|
{
|
|
ASN1_STRING_free(osp);
|
|
return(0);
|
|
}
|
|
|
|
M_ASN1_STRING_length_set(osp, size);
|
|
p=M_ASN1_STRING_data(osp);
|
|
|
|
ASN1_put_object(&p,1,n,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
|
|
i2d_ASN1_INTEGER(&in,&p);
|
|
M_i2d_ASN1_OCTET_STRING(&os,&p);
|
|
|
|
ASN1_TYPE_set(a,V_ASN1_SEQUENCE,osp);
|
|
return(1);
|
|
}
|
|
|
|
/* we return the actual length..., num may be missing, in which
|
|
* case, set it to zero */
|
|
/* int max_len: for returned value */
|
|
int ASN1_TYPE_get_int_octetstring(ASN1_TYPE *a, long *num, unsigned char *data,
|
|
int max_len)
|
|
{
|
|
int ret= -1,n;
|
|
ASN1_INTEGER *ai=NULL;
|
|
ASN1_OCTET_STRING *os=NULL;
|
|
const unsigned char *p;
|
|
long length;
|
|
ASN1_const_CTX c;
|
|
|
|
if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL))
|
|
{
|
|
goto err;
|
|
}
|
|
p=M_ASN1_STRING_data(a->value.sequence);
|
|
length=M_ASN1_STRING_length(a->value.sequence);
|
|
|
|
c.pp= &p;
|
|
c.p=p;
|
|
c.max=p+length;
|
|
c.error=ASN1_R_DATA_IS_WRONG;
|
|
|
|
M_ASN1_D2I_start_sequence();
|
|
c.q=c.p;
|
|
if ((ai=d2i_ASN1_INTEGER(NULL,&c.p,c.slen)) == NULL) goto err;
|
|
c.slen-=(c.p-c.q);
|
|
c.q=c.p;
|
|
if ((os=d2i_ASN1_OCTET_STRING(NULL,&c.p,c.slen)) == NULL) goto err;
|
|
c.slen-=(c.p-c.q);
|
|
if (!M_ASN1_D2I_end_sequence()) goto err;
|
|
|
|
if (num != NULL)
|
|
*num=ASN1_INTEGER_get(ai);
|
|
|
|
ret=M_ASN1_STRING_length(os);
|
|
if (max_len > ret)
|
|
n=ret;
|
|
else
|
|
n=max_len;
|
|
|
|
if (data != NULL)
|
|
memcpy(data,M_ASN1_STRING_data(os),n);
|
|
if (0)
|
|
{
|
|
err:
|
|
ASN1err(ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING,ASN1_R_DATA_IS_WRONG);
|
|
}
|
|
if (os != NULL) M_ASN1_OCTET_STRING_free(os);
|
|
if (ai != NULL) M_ASN1_INTEGER_free(ai);
|
|
return(ret);
|
|
}
|
|
|