1 | // Copyright (c) Microsoft. All rights reserved.
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2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information.
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3 |
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4 | #include "azure_c_shared_utility/xlogging.h"
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5 | #include "azure_c_shared_utility/consolelogger.h"
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6 |
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7 | #ifndef NO_LOGGING
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8 |
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9 | #ifdef WIN32
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10 | #include "windows.h"
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11 | #endif // WIN32
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12 |
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13 |
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14 | LOGGER_LOG global_log_function = consolelogger_log;
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15 |
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16 | void xlogging_set_log_function(LOGGER_LOG log_function)
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17 | {
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18 | global_log_function = log_function;
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19 | }
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20 |
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21 | LOGGER_LOG xlogging_get_log_function(void)
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22 | {
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23 | return global_log_function;
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24 | }
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25 |
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26 | #if (defined(_MSC_VER))
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27 |
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28 | LOGGER_LOG_GETLASTERROR global_log_function_GetLastError = consolelogger_log_with_GetLastError;
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29 |
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30 | void xlogging_set_log_function_GetLastError(LOGGER_LOG_GETLASTERROR log_function_GetLastError)
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31 | {
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32 | global_log_function_GetLastError = log_function_GetLastError;
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33 | }
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34 |
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35 | LOGGER_LOG_GETLASTERROR xlogging_get_log_function_GetLastError(void)
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36 | {
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37 | return global_log_function_GetLastError;
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38 | }
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39 | #endif
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40 |
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41 | /* Print up to 16 bytes per line. */
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42 | #define LINE_SIZE 16
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43 |
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44 | /* Return the printable char for the provided value. */
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45 | #define PRINTABLE(c) ((c >= ' ') && (c <= '~')) ? (char)c : '.'
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46 |
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47 | /* Convert the lower nibble of the provided byte to a hexadecimal printable char. */
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48 | #define HEX_STR(c) (((c) & 0xF) < 0xA) ? (char)(((c) & 0xF) + '0') : (char)(((c) & 0xF) - 0xA + 'A')
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49 |
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50 | void LogBinary(const char* comment, const void* data, size_t size)
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51 | {
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52 | char charBuf[LINE_SIZE + 1];
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53 | char hexBuf[LINE_SIZE * 3 + 1];
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54 | size_t countbuf = 0;
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55 | size_t i = 0;
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56 | const unsigned char* bufAsChar = (const unsigned char*)data;
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57 | const unsigned char* startPos = bufAsChar;
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58 |
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59 | LOG(AZ_LOG_TRACE, LOG_LINE, "%s %lu bytes", comment, (unsigned long)size);
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60 |
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61 | /* Print the whole buffer. */
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62 | for (i = 0; i < size; i++)
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63 | {
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64 | /* Store the printable value of the char in the charBuf to print. */
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65 | charBuf[countbuf] = PRINTABLE(*bufAsChar);
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66 |
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67 | /* Convert the high nibble to a printable hexadecimal value. */
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68 | hexBuf[countbuf * 3] = HEX_STR(*bufAsChar >> 4);
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69 |
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70 | /* Convert the low nibble to a printable hexadecimal value. */
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71 | hexBuf[countbuf * 3 + 1] = HEX_STR(*bufAsChar);
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72 |
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73 | hexBuf[countbuf * 3 + 2] = ' ';
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74 |
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75 | countbuf++;
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76 | bufAsChar++;
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77 | /* If the line is full, print it to start another one. */
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78 | if (countbuf == LINE_SIZE)
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79 | {
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80 | charBuf[countbuf] = '\0';
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81 | hexBuf[countbuf * 3] = '\0';
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82 | LOG(AZ_LOG_TRACE, LOG_LINE, "%p: %s %s", startPos, hexBuf, charBuf);
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83 | countbuf = 0;
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84 | startPos = bufAsChar;
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85 | }
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86 | }
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87 |
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88 | /* If the last line does not fit the line size. */
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89 | if (countbuf > 0)
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90 | {
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91 | /* Close the charBuf string. */
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92 | charBuf[countbuf] = '\0';
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93 |
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94 | /* Fill the hexBuf with spaces to keep the charBuf alignment. */
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95 | while ((countbuf++) < LINE_SIZE - 1)
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96 | {
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97 | hexBuf[countbuf * 3] = ' ';
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98 | hexBuf[countbuf * 3 + 1] = ' ';
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99 | hexBuf[countbuf * 3 + 2] = ' ';
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100 | }
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101 | hexBuf[countbuf * 3] = '\0';
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102 |
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103 | /* Print the last line. */
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104 | LOG(AZ_LOG_TRACE, LOG_LINE, "%p: %s %s", startPos, hexBuf, charBuf);
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105 | }
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106 | }
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107 |
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108 | #ifdef WIN32
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109 |
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110 | void xlogging_LogErrorWinHTTPWithGetLastErrorAsStringFormatter(int errorMessageID)
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111 | {
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112 | char messageBuffer[MESSAGE_BUFFER_SIZE];
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113 | if (errorMessageID == 0)
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114 | {
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115 | LogError("GetLastError() returned 0. Make sure you are calling this right after the code that failed. ");
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116 | }
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117 | else
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118 | {
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119 | int size = FormatMessage(FORMAT_MESSAGE_FROM_HMODULE | FORMAT_MESSAGE_IGNORE_INSERTS,
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120 | GetModuleHandle("WinHttp"), errorMessageID, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), messageBuffer, MESSAGE_BUFFER_SIZE, NULL);
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121 | if (size == 0)
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122 | {
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123 | size = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorMessageID, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), messageBuffer, MESSAGE_BUFFER_SIZE, NULL);
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124 | if (size == 0)
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125 | {
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126 | LogError("GetLastError Code: %d. ", errorMessageID);
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127 | }
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128 | else
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129 | {
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130 | LogError("GetLastError: %s.", messageBuffer);
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131 | }
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132 | }
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133 | else
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134 | {
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135 | LogError("GetLastError: %s.", messageBuffer);
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136 | }
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137 | }
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138 | }
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139 | #endif // WIN32
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140 |
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141 |
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142 | #endif // NO_LOGGING
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143 |
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144 |
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145 |
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