diff options
Diffstat (limited to 'thirdparty/mbedtls/library/debug.c')
| -rw-r--r-- | thirdparty/mbedtls/library/debug.c | 101 |
1 files changed, 57 insertions, 44 deletions
diff --git a/thirdparty/mbedtls/library/debug.c b/thirdparty/mbedtls/library/debug.c index 36510cdd56..9caa361d44 100644 --- a/thirdparty/mbedtls/library/debug.c +++ b/thirdparty/mbedtls/library/debug.c @@ -1,8 +1,14 @@ /* * Debugging routines * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + * + * This file is provided under the Apache License 2.0, or the + * GNU General Public License v2.0 or later. + * + * ********** + * Apache License 2.0: * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. @@ -16,7 +22,26 @@ * See the License for the specific language governing permissions and * limitations under the License. * - * This file is part of mbed TLS (https://tls.mbed.org) + * ********** + * + * ********** + * GNU General Public License v2.0 or later: + * + * 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. + * + * ********** */ #if !defined(MBEDTLS_CONFIG_FILE) @@ -236,8 +261,8 @@ void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level, const char *text, const mbedtls_mpi *X ) { char str[DEBUG_BUF_SIZE]; - int j, k, zeros = 1; - size_t i, n, idx = 0; + size_t bitlen; + size_t idx = 0; if( NULL == ssl || NULL == ssl->conf || @@ -248,55 +273,43 @@ void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level, return; } - for( n = X->n - 1; n > 0; n-- ) - if( X->p[n] != 0 ) - break; - - for( j = ( sizeof(mbedtls_mpi_uint) << 3 ) - 1; j >= 0; j-- ) - if( ( ( X->p[n] >> j ) & 1 ) != 0 ) - break; - - mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:\n", - text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) ); + bitlen = mbedtls_mpi_bitlen( X ); + mbedtls_snprintf( str, sizeof( str ), "value of '%s' (%u bits) is:\n", + text, (unsigned) bitlen ); debug_send_line( ssl, level, file, line, str ); - idx = 0; - for( i = n + 1, j = 0; i > 0; i-- ) + if( bitlen == 0 ) { - if( zeros && X->p[i - 1] == 0 ) - continue; - - for( k = sizeof( mbedtls_mpi_uint ) - 1; k >= 0; k-- ) + str[0] = ' '; str[1] = '0'; str[2] = '0'; + idx = 3; + } + else + { + int n; + for( n = (int) ( ( bitlen - 1 ) / 8 ); n >= 0; n-- ) { - if( zeros && ( ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ) == 0 ) - continue; - else - zeros = 0; - - if( j % 16 == 0 ) + size_t limb_offset = n / sizeof( mbedtls_mpi_uint ); + size_t offset_in_limb = n % sizeof( mbedtls_mpi_uint ); + unsigned char octet = + ( X->p[limb_offset] >> ( offset_in_limb * 8 ) ) & 0xff; + mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", octet ); + idx += 3; + /* Wrap lines after 16 octets that each take 3 columns */ + if( idx >= 3 * 16 ) { - if( j > 0 ) - { - mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); - debug_send_line( ssl, level, file, line, str ); - idx = 0; - } + mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); + debug_send_line( ssl, level, file, line, str ); + idx = 0; } - - idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", (unsigned int) - ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ); - - j++; } - } - if( zeros == 1 ) - idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" ); - - mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); - debug_send_line( ssl, level, file, line, str ); + if( idx != 0 ) + { + mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); + debug_send_line( ssl, level, file, line, str ); + } } #endif /* MBEDTLS_BIGNUM_C */ |