| /* |
| * Copyright 2003-2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // !!! This include file must be first thing in file !!! |
| #include "../platforms/PlatformAutoSense.hpp" |
| |
| #include "HexCoder.h" |
| |
| #include "../common/AxisTrace.h" |
| |
| const static char s_HexToNumTable[256]= |
| { |
| /* following is for ascii characters */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 00 - 15 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 16 - 31 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 32 - 47 */ |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 48 - 63 */ |
| 0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 64 - 79 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 80 - 95 */ |
| 0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 96 - 111 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 112 - 127 */ |
| /* Following is for ebcdic characters */ |
| 0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 128 - 143 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 144 - 159 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 160 - 175 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 176 - 191 */ |
| 0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 192 - 207 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 208 - 223 */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 224 - 239 */ |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 240 - 255 */ |
| }; |
| |
| |
| const static char s_NumToHexTable[16] = |
| { |
| '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F' |
| }; |
| |
| int Hex_Encode(char * coded_dst, const unsigned char *plain_src, |
| int len_plain_src) |
| { |
| const unsigned char *cur = plain_src; |
| const unsigned char *end = cur + len_plain_src; |
| while(cur < end) |
| { |
| *coded_dst = s_NumToHexTable[(*cur) >> 4]; |
| coded_dst++; |
| *coded_dst = s_NumToHexTable[(*cur)& 0x0f]; |
| coded_dst++; |
| cur++; |
| } |
| return 0; |
| } |
| |
| int Hex_Decode(unsigned char * plain_dst, const char *coded_src) |
| { |
| unsigned char* curr = plain_dst; |
| while (*coded_src != '\0') |
| { |
| *curr = (s_HexToNumTable[(int)(*coded_src)] << 4) | |
| s_HexToNumTable[(int)(*(coded_src+1))]; |
| curr++; |
| coded_src+=2; |
| } |
| return (int)(curr-plain_dst); |
| } |