mirror of
https://github.com/qpdf/qpdf.git
synced 2024-12-22 19:08:59 +00:00
5d4cad9c02
Significantly improve the code's use of off_t for file offsets, size_t for memory sizes, and integer types in cases where there has to be compatibility with external interfaces. Rework sections of the code that would have prevented qpdf from working on files larger than 2 (or maybe 4) GB in size.
61 lines
1.1 KiB
C++
61 lines
1.1 KiB
C++
#include <qpdf/Pl_LZWDecoder.hh>
|
|
|
|
#include <qpdf/Pl_StdioFile.hh>
|
|
#include <qpdf/QUtil.hh>
|
|
#include <iostream>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
bool early_code_change = true;
|
|
if ((argc == 4) && (strcmp(argv[3], "--no-early-code-change") == 0))
|
|
{
|
|
early_code_change = false;
|
|
}
|
|
|
|
if (argc < 3)
|
|
{
|
|
std::cerr << "Usage: lzw infile outfile [ --no-early-code-change ]"
|
|
<< std::endl;
|
|
exit(2);
|
|
}
|
|
|
|
try
|
|
{
|
|
char* infilename = argv[1];
|
|
char* outfilename = argv[2];
|
|
|
|
FILE* infile = QUtil::fopen_wrapper("open input file",
|
|
fopen(infilename, "rb"));
|
|
FILE* outfile = QUtil::fopen_wrapper("open output file",
|
|
fopen(outfilename, "wb"));
|
|
|
|
Pl_StdioFile out("output", outfile);
|
|
Pl_LZWDecoder decode("decode", &out, early_code_change);
|
|
|
|
unsigned char buf[10000];
|
|
bool done = false;
|
|
while (! done)
|
|
{
|
|
size_t len = fread(buf, 1, sizeof(buf), infile);
|
|
if (len <= 0)
|
|
{
|
|
done = true;
|
|
}
|
|
else
|
|
{
|
|
decode.write(buf, len);
|
|
}
|
|
}
|
|
decode.finish();
|
|
}
|
|
catch (std::exception& e)
|
|
{
|
|
std::cerr << e.what() << std::endl;
|
|
exit(2);
|
|
}
|
|
|
|
return 0;
|
|
}
|