X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/678bc33eaf95356d1b63090d220b65162478b89a..d27daedb6a0bf672508072100f20233d08ccf0e0:/apt-pkg/contrib/sha1.cc diff --git a/apt-pkg/contrib/sha1.cc b/apt-pkg/contrib/sha1.cc index b1c80925f..bf6bc6cb6 100644 --- a/apt-pkg/contrib/sha1.cc +++ b/apt-pkg/contrib/sha1.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: sha1.cc,v 1.2 2001/03/11 05:30:20 jgg Exp $ +// $Id: sha1.cc,v 1.3 2001/05/13 05:15:03 jgg Exp $ /* ###################################################################### SHA1 - SHA-1 Secure Hash Algorithm. @@ -29,18 +29,12 @@ */ /*}}} */ // Include Files /*{{{*/ -#ifdef __GNUG__ -#pragma implementation "apt-pkg/sha1.h" -#endif +#include #include -#include +#include #include -#include -#include -#include -#include /*}}}*/ // SHA1Transform - Alters an existing SHA-1 hash /*{{{*/ @@ -78,10 +72,9 @@ static void SHA1Transform(uint32_t state[5],uint8_t const buffer[64]) uint32_t l[16]; } CHAR64LONG16; - CHAR64LONG16 *block; + CHAR64LONG16 workspace, *block; - uint8_t workspace[64]; - block = (CHAR64LONG16 *)workspace; + block = &workspace; memcpy(block,buffer,sizeof(workspace)); /* Copy context->state[] to working vars */ @@ -182,67 +175,6 @@ static void SHA1Transform(uint32_t state[5],uint8_t const buffer[64]) } /*}}}*/ -// SHA1SumValue::SHA1SumValue - Constructs the summation from a string /*{{{*/ -// --------------------------------------------------------------------- -/* The string form of a SHA1 is a 40 character hex number */ -SHA1SumValue::SHA1SumValue(string Str) -{ - memset(Sum,0,sizeof(Sum)); - Set(Str); -} - - /*}}} */ -// SHA1SumValue::SHA1SumValue - Default constructor /*{{{*/ -// --------------------------------------------------------------------- -/* Sets the value to 0 */ -SHA1SumValue::SHA1SumValue() -{ - memset(Sum,0,sizeof(Sum)); -} - - /*}}} */ -// SHA1SumValue::Set - Set the sum from a string /*{{{*/ -// --------------------------------------------------------------------- -/* Converts the hex string into a set of chars */ -bool SHA1SumValue::Set(string Str) -{ - return Hex2Num(Str.begin(),Str.end(),Sum,sizeof(Sum)); -} - - /*}}} */ -// SHA1SumValue::Value - Convert the number into a string /*{{{*/ -// --------------------------------------------------------------------- -/* Converts the set of chars into a hex string in lower case */ -string SHA1SumValue::Value() const -{ - char Conv[16] = - { '0','1','2','3','4','5','6','7','8','9','a','b', - 'c','d','e','f' - }; - char Result[41]; - Result[40] = 0; - - // Convert each char into two letters - int J = 0; - int I = 0; - for (; I != 40; J++,I += 2) - { - Result[I] = Conv[Sum[J] >> 4]; - Result[I + 1] = Conv[Sum[J] & 0xF]; - } - - return string(Result); -} - - /*}}} */ -// SHA1SumValue::operator == - Comparator /*{{{*/ -// --------------------------------------------------------------------- -/* Call memcmp on the buffer */ -bool SHA1SumValue::operator == (const SHA1SumValue & rhs) const -{ - return memcmp(Sum,rhs.Sum,sizeof(Sum)) == 0; -} - /*}}}*/ // SHA1Summation::SHA1Summation - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -294,18 +226,20 @@ SHA1SumValue SHA1Summation::Result() // Transfer over the result SHA1SumValue Value; + unsigned char res[20]; for (unsigned i = 0; i < 20; i++) { - Value.Sum[i] = (unsigned char) + res[i] = (unsigned char) ((state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255); } + Value.Set(res); return Value; } /*}}}*/ // SHA1Summation::Add - Adds content of buffer into the checksum /*{{{*/ // --------------------------------------------------------------------- /* May not be called after Result() is called */ -bool SHA1Summation::Add(const unsigned char *data,unsigned long len) +bool SHA1Summation::Add(const unsigned char *data,unsigned long long len) { if (Done) return false; @@ -336,21 +270,3 @@ bool SHA1Summation::Add(const unsigned char *data,unsigned long len) return true; } /*}}}*/ -// SHA1Summation::AddFD - Add content of file into the checksum /*{{{*/ -// --------------------------------------------------------------------- -/* */ -bool SHA1Summation::AddFD(int Fd,unsigned long Size) -{ - unsigned char Buf[64 * 64]; - int Res = 0; - while (Size != 0) - { - Res = read(Fd,Buf,MIN(Size,sizeof(Buf))); - if (Res < 0 || (unsigned) Res != MIN(Size,sizeof(Buf))) - return false; - Size -= Res; - Add(Buf,Res); - } - return true; -} - /*}}}*/