| Hanno Becker | b910016 | 2021-01-12 09:46:03 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Message Processing Stack, Trace module |
| 3 | * |
| 4 | * Copyright The Mbed TLS Contributors |
| 5 | * SPDX-License-Identifier: Apache-2.0 |
| 6 | * |
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 8 | * not use this file except in compliance with the License. |
| 9 | * You may obtain a copy of the License at |
| 10 | * |
| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | * |
| 13 | * Unless required by applicable law or agreed to in writing, software |
| 14 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 15 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | * See the License for the specific language governing permissions and |
| 17 | * limitations under the License. |
| 18 | * |
| 19 | * This file is part of Mbed TLS (https://tls.mbed.org) |
| 20 | */ |
| 21 | |
| 22 | #include "common.h" |
| 23 | |
| 24 | #if defined(MBEDTLS_MPS_TRACE) |
| 25 | |
| 26 | #include "trace.h" |
| 27 | #include <stdarg.h> |
| 28 | |
| 29 | static int trace_depth_ = 0; |
| 30 | |
| 31 | #define color_default "\x1B[0m" |
| 32 | #define color_red "\x1B[1;31m" |
| 33 | #define color_green "\x1B[1;32m" |
| 34 | #define color_yellow "\x1B[1;33m" |
| 35 | #define color_blue "\x1B[1;34m" |
| 36 | #define color_magenta "\x1B[1;35m" |
| 37 | #define color_cyan "\x1B[1;36m" |
| 38 | #define color_white "\x1B[1;37m" |
| 39 | |
| 40 | static char const * colors[] = |
| 41 | { |
| 42 | color_default, |
| 43 | color_green, |
| 44 | color_yellow, |
| 45 | color_magenta, |
| 46 | color_cyan, |
| 47 | color_blue, |
| 48 | color_white |
| 49 | }; |
| 50 | |
| 51 | #define MPS_TRACE_BUF_SIZE 100 |
| 52 | |
| 53 | void trace_print_msg( int id, int line, const char *format, ... ) |
| 54 | { |
| 55 | int ret; |
| 56 | char str[MPS_TRACE_BUF_SIZE]; |
| 57 | va_list argp; |
| 58 | va_start( argp, format ); |
| 59 | ret = mbedtls_vsnprintf( str, MPS_TRACE_BUF_SIZE, format, argp ); |
| 60 | va_end( argp ); |
| 61 | |
| 62 | if( ret >= 0 && ret < MPS_TRACE_BUF_SIZE ) |
| 63 | { |
| 64 | str[ret] = '\0'; |
| 65 | mbedtls_printf( "[%d|L%d]: %s\n", id, line, str ); |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | int trace_get_depth() |
| 70 | { |
| 71 | return trace_depth_; |
| 72 | } |
| 73 | void trace_dec_depth() |
| 74 | { |
| 75 | trace_depth_--; |
| 76 | } |
| 77 | void trace_inc_depth() |
| 78 | { |
| 79 | trace_depth_++; |
| 80 | } |
| 81 | |
| 82 | void trace_color( int id ) |
| 83 | { |
| 84 | if( id > (int) ( sizeof( colors ) / sizeof( *colors ) ) ) |
| 85 | return; |
| 86 | printf( "%s", colors[ id ] ); |
| 87 | } |
| 88 | |
| 89 | void trace_indent( int level, trace_type ty ) |
| 90 | { |
| 91 | if( level > 0 ) |
| 92 | { |
| 93 | while( --level ) |
| 94 | printf( "| " ); |
| 95 | |
| 96 | printf( "| " ); |
| 97 | } |
| 98 | |
| 99 | switch( ty ) |
| 100 | { |
| 101 | case trace_comment: |
| 102 | mbedtls_printf( "@ " ); |
| 103 | break; |
| 104 | |
| 105 | case trace_call: |
| 106 | mbedtls_printf( "+--> " ); |
| 107 | break; |
| 108 | |
| 109 | case trace_error: |
| 110 | mbedtls_printf( "E " ); |
| 111 | break; |
| 112 | |
| 113 | case trace_return: |
| 114 | mbedtls_printf( "< " ); |
| 115 | break; |
| 116 | |
| 117 | default: |
| 118 | break; |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | #endif /* MBEDTLS_MPS_TRACE */ |