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comparison Core/Toolbox.cpp @ 22:1bc6327d1de3

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MD5 sum
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 27 Aug 2012 11:45:53 +0200
parents 27e2bbc11200
children 62bd05fe4b7c
comparison
equal deleted inserted replaced
21:29bfa3095207 22:1bc6327d1de3
34 #if defined(__linux) 34 #if defined(__linux)
35 #include <signal.h> 35 #include <signal.h>
36 #include <unistd.h> 36 #include <unistd.h>
37 #endif 37 #endif
38 38
39 #include "../Resources/md5/md5.h"
40
39 41
40 namespace Palantir 42 namespace Palantir
41 { 43 {
42 static bool finish; 44 static bool finish;
43 45
300 catch (boost::filesystem::filesystem_error) 302 catch (boost::filesystem::filesystem_error)
301 { 303 {
302 throw PalantirException(ErrorCode_InexistentFile); 304 throw PalantirException(ErrorCode_InexistentFile);
303 } 305 }
304 } 306 }
307
308
309
310 static char GetHexadecimalCharacter(uint8_t value)
311 {
312 assert(value < 16);
313
314 if (value < 10)
315 return value + '0';
316 else
317 return (value - 10) + 'a';
318 }
319
320 void Toolbox::ComputeMD5(std::string& result,
321 const std::string& data)
322 {
323 md5_state_s state;
324 md5_init(&state);
325
326 if (data.size() > 0)
327 {
328 md5_append(&state, reinterpret_cast<const md5_byte_t*>(&data[0]),
329 static_cast<int>(data.size()));
330 }
331
332 md5_byte_t actualHash[16];
333 md5_finish(&state, actualHash);
334
335 result.resize(32);
336 for (unsigned int i = 0; i < 16; i++)
337 {
338 result[2 * i] = GetHexadecimalCharacter(actualHash[i] / 16);
339 result[2 * i + 1] = GetHexadecimalCharacter(actualHash[i] % 16);
340 }
341
342 }
305 } 343 }