mirror of
https://github.com/qpdf/qpdf.git
synced 2024-11-02 11:46:35 +00:00
cb769c62e5
This comment expands all tabs using an 8-character tab-width. You should ignore this commit when using git blame or use git blame -w. In the early days, I used to use tabs where possible for indentation, since emacs did this automatically. In recent years, I have switched to only using spaces, which means qpdf source code has been a mixture of spaces and tabs. I have avoided cleaning this up because of not wanting gratuitous whitespaces change to cloud the output of git blame, but I changed my mind after discussing with users who view qpdf source code in editors/IDEs that have other tab widths by default and in light of the fact that I am planning to start applying automatic code formatting soon.
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
#include <qpdf/MD5.hh>
|
|
#include <qpdf/Pl_MD5.hh>
|
|
#include <qpdf/Pl_Discard.hh>
|
|
#include <qpdf/QUtil.hh>
|
|
#include <iostream>
|
|
#include <stdio.h>
|
|
|
|
static void test_string(char const* str)
|
|
{
|
|
MD5 a;
|
|
a.encodeString(str);
|
|
a.print();
|
|
}
|
|
|
|
int main(int, char*[])
|
|
{
|
|
test_string("");
|
|
test_string("a");
|
|
test_string("abc");
|
|
test_string("message digest");
|
|
test_string("abcdefghijklmnopqrstuvwxyz");
|
|
test_string("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi"
|
|
"jklmnopqrstuvwxyz0123456789");
|
|
test_string("1234567890123456789012345678901234567890"
|
|
"1234567890123456789012345678901234567890");
|
|
MD5 a;
|
|
a.encodeFile("md5.in");
|
|
std::cout << a.unparse() << std::endl;
|
|
MD5 b;
|
|
b.encodeFile("md5.in", 100);
|
|
std::cout << b.unparse() << std::endl;
|
|
|
|
std::cout
|
|
<< MD5::checkDataChecksum("900150983cd24fb0d6963f7d28e17f72", "abc", 3)
|
|
<< std::endl
|
|
<< MD5::checkFileChecksum("5f4b4321873433daae578f85c72f9e74", "md5.in")
|
|
<< std::endl
|
|
<< MD5::checkFileChecksum("6f4b4321873433daae578f85c72f9e74", "md5.in")
|
|
<< std::endl
|
|
<< MD5::checkDataChecksum("000150983cd24fb0d6963f7d28e17f72", "abc", 3)
|
|
<< std::endl
|
|
<< MD5::checkFileChecksum("6f4b4321873433daae578f85c72f9e74", "glerbl")
|
|
<< std::endl;
|
|
|
|
|
|
Pl_Discard d;
|
|
Pl_MD5 p("MD5", &d);
|
|
// Create a second pipeline, protect against finish, and call
|
|
// getHexDigest only once at the end of both passes. Make sure the
|
|
// checksum is that of the input file concatenated to itself. This
|
|
// will require changes to Pl_MD5.cc to prevent finish from
|
|
// calling finalize.
|
|
Pl_MD5 p2("MD5", &d);
|
|
p2.persistAcrossFinish(true);
|
|
for (int i = 0; i < 2; ++i)
|
|
{
|
|
FILE* f = QUtil::safe_fopen("md5.in", "rb");
|
|
// buffer size < size of md5.in
|
|
unsigned char buf[50];
|
|
bool done = false;
|
|
while (! done)
|
|
{
|
|
size_t len = fread(buf, 1, sizeof(buf), f);
|
|
if (len <= 0)
|
|
{
|
|
done = true;
|
|
}
|
|
else
|
|
{
|
|
p.write(buf, len);
|
|
p2.write(buf, len);
|
|
if (i == 1)
|
|
{
|
|
// Partial digest -- resets after each call to write
|
|
std::cout << p.getHexDigest() << std::endl;
|
|
}
|
|
}
|
|
}
|
|
fclose(f);
|
|
p.finish();
|
|
p2.finish();
|
|
// Make sure calling getHexDigest twice with no intervening
|
|
// writes results in the same result each time.
|
|
std::cout << p.getHexDigest() << std::endl;
|
|
std::cout << p.getHexDigest() << std::endl;
|
|
}
|
|
std::cout << p2.getHexDigest() << std::endl;
|
|
|
|
return 0;
|
|
}
|