diff options
Diffstat (limited to 'hash/hash.cpp')
-rw-r--r-- | hash/hash.cpp | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/hash/hash.cpp b/hash/hash.cpp deleted file mode 100644 index d844c46..0000000 --- a/hash/hash.cpp +++ /dev/null @@ -1,85 +0,0 @@ -#include "hash.h" -#include "crc32.h" - -#include <stdexcept> - -namespace Hex { - static char* digits = "0123456789abcdef"; - std::string hex(char* bin, int length) { - std::string s(length * 2, ' '); - for(int i = 0; i < length; i++) { - s[i*2] = digits[(bin[i] >> 4) & 0xf]; - s[i*2+1] = digits[bin[i] & 0xf]; - } - return s; - } - std::string hex(int bin) { - std::string s(sizeof(int) * 2, ' '); - for(int i = 0; i < sizeof(int) * 2; i++) { - s[sizeof(int) * 2 - 1 - i] = digits[bin & 0xf]; - bin = bin >> 4; - } - return s; - } -} - -Hash::Hash() { - finished = false; - - crc32_ctx = 0; - crc32_str = ""; - - ed2k_str = ""; - - MD5_Init(&md5_ctx); - md5_str = ""; - - SHA1_Init(&sha1_ctx); - sha1_str = ""; -} - -void Hash::update(std::string data) { - if(finished) { - throw std::runtime_error("Can't update after digest."); - } - crc32_ctx = CRC32::crc32(crc32_ctx, data.c_str(), data.length()); - ed2k_ctx.update(data.c_str(), data.length()); - MD5_Update(&md5_ctx, data.c_str(), data.length()); - SHA1_Update(&sha1_ctx, data.c_str(), data.length()); -} - -std::string Hash::crc32() { - return Hex::hex(crc32_ctx); -} - -std::string Hash::ed2k() { - if(!ed2k_str.length()) { - finished = true; - char* digest = ed2k_ctx.digest(); - ed2k_str = Hex::hex(digest, 16); - delete digest; - } - return ed2k_str; -} - -std::string Hash::md5() { - if(!md5_str.length()) { - finished = true; - char* digest = new char[16]; - MD5_Final((unsigned char*)digest, &md5_ctx); - md5_str = Hex::hex(digest, 16); - delete digest; - } - return md5_str; -} - -std::string Hash::sha1() { - if(!sha1_str.length()) { - finished = true; - char* digest = new char[20]; - SHA1_Final((unsigned char*)digest, &sha1_ctx); - sha1_str = Hex::hex(digest, 20); - delete digest; - } - return sha1_str; -} |