From 682f23e7bb4a52bedf46eff5c4859e1308eda124 Mon Sep 17 00:00:00 2001 From: Michał Cichoń Date: Tue, 25 Aug 2015 19:56:24 +0200 Subject: Update build ref --- polarssl/src/library/asn1write.c | 241 --------------------------------------- 1 file changed, 241 deletions(-) delete mode 100644 polarssl/src/library/asn1write.c (limited to 'polarssl/src/library/asn1write.c') diff --git a/polarssl/src/library/asn1write.c b/polarssl/src/library/asn1write.c deleted file mode 100644 index e50c17c..0000000 --- a/polarssl/src/library/asn1write.c +++ /dev/null @@ -1,241 +0,0 @@ -/* - * ASN.1 buffer writing functionality - * - * Copyright (C) 2006-2012, Brainspark B.V. - * - * This file is part of PolarSSL (http://www.polarssl.org) - * Lead Maintainer: Paul Bakker - * - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "polarssl/config.h" - -#if defined(POLARSSL_ASN1_WRITE_C) - -#include "polarssl/asn1write.h" - -int asn1_write_len( unsigned char **p, unsigned char *start, size_t len ) -{ - if( len < 0x80 ) - { - if( *p - start < 1 ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - *--(*p) = len; - return( 1 ); - } - - if( len <= 0xFF ) - { - if( *p - start < 2 ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - *--(*p) = len; - *--(*p) = 0x81; - return( 2 ); - } - - if( *p - start < 3 ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - // We assume we never have lengths larger than 65535 bytes - // - *--(*p) = len % 256; - *--(*p) = ( len / 256 ) % 256; - *--(*p) = 0x82; - - return( 3 ); -} - -int asn1_write_tag( unsigned char **p, unsigned char *start, unsigned char tag ) -{ - if( *p - start < 1 ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - *--(*p) = tag; - - return( 1 ); -} - -int asn1_write_mpi( unsigned char **p, unsigned char *start, mpi *X ) -{ - int ret; - size_t len = 0; - - // Write the MPI - // - len = mpi_size( X ); - - if( *p - start < (int) len ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - (*p) -= len; - mpi_write_binary( X, *p, len ); - - // DER format assumes 2s complement for numbers, so the leftmost bit - // should be 0 for positive numbers and 1 for negative numbers. - // - if ( X->s ==1 && **p & 0x80 ) - { - if( *p - start < 1 ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - *--(*p) = 0x00; - len += 1; - } - - ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); - ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_INTEGER ) ); - - return( len ); -} - -int asn1_write_null( unsigned char **p, unsigned char *start ) -{ - int ret; - size_t len = 0; - - // Write NULL - // - ASN1_CHK_ADD( len, asn1_write_len( p, start, 0) ); - ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_NULL ) ); - - return( len ); -} - -int asn1_write_oid( unsigned char **p, unsigned char *start, char *oid ) -{ - int ret; - size_t len = 0; - - // Write OID - // - len = strlen( oid ); - - if( *p - start < (int) len ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - (*p) -= len; - memcpy( *p, oid, len ); - - ASN1_CHK_ADD( len , asn1_write_len( p, start, len ) ); - ASN1_CHK_ADD( len , asn1_write_tag( p, start, ASN1_OID ) ); - - return( len ); -} - -int asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start, - char *algorithm_oid ) -{ - int ret; - size_t null_len = 0; - size_t oid_len = 0; - size_t len = 0; - - // Write NULL - // - ASN1_CHK_ADD( null_len, asn1_write_null( p, start ) ); - - // Write OID - // - ASN1_CHK_ADD( oid_len, asn1_write_oid( p, start, algorithm_oid ) ); - - len = oid_len + null_len; - ASN1_CHK_ADD( len, asn1_write_len( p, start, oid_len + null_len ) ); - ASN1_CHK_ADD( len, asn1_write_tag( p, start, - ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ); - - return( len ); -} - -int asn1_write_int( unsigned char **p, unsigned char *start, int val ) -{ - int ret; - size_t len = 0; - - // TODO negative values and values larger than 128 - // DER format assumes 2s complement for numbers, so the leftmost bit - // should be 0 for positive numbers and 1 for negative numbers. - // - if( *p - start < 1 ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - len += 1; - *--(*p) = val; - - if ( val > 0 && **p & 0x80 ) - { - if( *p - start < 1 ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - *--(*p) = 0x00; - len += 1; - } - - ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); - ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_INTEGER ) ); - - return( len ); -} - -int asn1_write_printable_string( unsigned char **p, unsigned char *start, - char *text ) -{ - int ret; - size_t len = 0; - - // Write string - // - len = strlen( text ); - - if( *p - start < (int) len ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - (*p) -= len; - memcpy( *p, text, len ); - - ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); - ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_PRINTABLE_STRING ) ); - - return( len ); -} - -int asn1_write_ia5_string( unsigned char **p, unsigned char *start, - char *text ) -{ - int ret; - size_t len = 0; - - // Write string - // - len = strlen( text ); - - if( *p - start < (int) len ) - return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); - - (*p) -= len; - memcpy( *p, text, len ); - - ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); - ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_IA5_STRING ) ); - - return( len ); -} - - -#endif -- cgit v1.2.3