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#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <lzmadec.h>
#include "../lzma_version.h"
#define CHUNKSIZE_IN 4096
#define CHUNKSIZE_OUT (1024*512)
/* for O_BINARY: */
#ifdef WIN32
#include <fcntl.h>
#endif
int main(int argc, char **argv)
{
int ret;
lzmadec_stream strm;
size_t write_size;
FILE *file_in = stdin;
FILE *file_out = stdout;
unsigned char *buffer_in = malloc (CHUNKSIZE_IN);
unsigned char *buffer_out = malloc (CHUNKSIZE_OUT);
/* Check the command line arguments. */
if (argc > 1 && 0 == strcmp (argv[1], "--help")) {
printf (/* Breaking the indentation style */
"\nLZMAdec - a small LZMA decoder\n\n"
"Usage: %s [--help]\n\n"
"The compressed data is read from stdin and uncompressed to stdout.\n\n"
"LZMA SDK version %s - %s\n"
"LZMA Utils version %s - %s\n"
"\nLZMAdec is free software licensed under the GNU LGPL.\n\n",
argv[0],
LZMA_SDK_VERSION_STRING, LZMA_SDK_COPYRIGHT_STRING,
LZMA_UTILS_VERSION_STRING, LZMA_UTILS_COPYRIGHT_STRING);
return 0;
}
/*
* Windows: set stdin/stdout to binary mode */
#ifdef WIN32
setmode(fileno(stdout), O_BINARY);
setmode(fileno(stdin), O_BINARY);
#endif
if (buffer_in == NULL || buffer_out == NULL) {
fprintf (stderr, "%s: Not enough memory.\n", argv[0]);
return 5;
}
/* Other initializations */
strm.lzma_alloc = NULL;
strm.lzma_free = NULL;
strm.opaque = NULL;
strm.avail_in = 0;
strm.next_in = NULL;
if (lzmadec_init (&strm) != LZMADEC_OK) {
fprintf (stderr, "Not enough memory.\n");
return 2;
}
/* Decode */
while (1) {
if (strm.avail_in == 0) {
strm.next_in = buffer_in;
strm.avail_in = fread (buffer_in, sizeof (unsigned char),
CHUNKSIZE_IN, file_in);
}
strm.next_out = buffer_out;
strm.avail_out = CHUNKSIZE_OUT;
ret = lzmadec_decode (&strm, strm.avail_in == 0);
if (ret != LZMADEC_OK && ret != LZMADEC_STREAM_END)
return 1;
write_size = CHUNKSIZE_OUT - strm.avail_out;
if (write_size != (fwrite (buffer_out, sizeof (unsigned char),
write_size, file_out)))
return 2;
if (ret == LZMADEC_STREAM_END) {
lzmadec_end (&strm);
return 0;
}
}
}
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