mirror of
https://github.com/Proxmark/proxmark3.git
synced 2025-07-06 13:11:18 -07:00
f39198789b
This allows to remove the gzip header support and the z_crc32.[ch] files (which saves more than 2KBytes of the ARM's flash memory)
134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
//-----------------------------------------------------------------------------
|
|
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
|
|
// at your option, any later version. See the LICENSE.txt file for the text of
|
|
// the license.
|
|
//-----------------------------------------------------------------------------
|
|
// Flasher frontend tool
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdint.h>
|
|
#include "zlib.h"
|
|
|
|
#define MAX(a,b) ((a)>(b)?(a):(b))
|
|
|
|
// zlib configuration
|
|
#define COMPRESS_LEVEL 9 // use best possible compression
|
|
|
|
#define FPGA_CONFIG_SIZE 42175
|
|
static uint8_t fpga_config[FPGA_CONFIG_SIZE];
|
|
|
|
static void usage(char *argv0)
|
|
{
|
|
fprintf(stderr, "Usage: %s <infile> <outfile>\n\n", argv0);
|
|
}
|
|
|
|
|
|
static voidpf fpga_deflate_malloc(voidpf opaque, uInt items, uInt size)
|
|
{
|
|
fprintf(stderr, "zlib requested %d bytes\n", items*size);
|
|
return malloc(items*size);
|
|
}
|
|
|
|
|
|
static void fpga_deflate_free(voidpf opaque, voidpf address)
|
|
{
|
|
fprintf(stderr, "zlib frees memory\n");
|
|
return free(address);
|
|
}
|
|
|
|
|
|
int zlib_compress(FILE *infile, FILE *outfile)
|
|
{
|
|
int i, ret;
|
|
z_stream compressed_fpga_stream;
|
|
|
|
// read the input file into fpga_config[] and count occurrences of each symbol:
|
|
i = 0;
|
|
while(!feof(infile)) {
|
|
uint8_t c;
|
|
c = fgetc(infile);
|
|
fpga_config[i++] = c;
|
|
if (i > FPGA_CONFIG_SIZE+1) {
|
|
fprintf(stderr, "Input file too big (> %d bytes). This is probably not a PM3 FPGA config file.", FPGA_CONFIG_SIZE);
|
|
fclose(infile);
|
|
fclose(outfile);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
// initialize zlib structures
|
|
compressed_fpga_stream.next_in = fpga_config;
|
|
compressed_fpga_stream.avail_in = i;
|
|
compressed_fpga_stream.zalloc = fpga_deflate_malloc;
|
|
compressed_fpga_stream.zfree = fpga_deflate_free;
|
|
|
|
// estimate the size of the compressed output
|
|
unsigned int outsize_max = deflateBound(&compressed_fpga_stream, compressed_fpga_stream.avail_in);
|
|
uint8_t *outbuf = malloc(outsize_max);
|
|
compressed_fpga_stream.next_out = outbuf;
|
|
compressed_fpga_stream.avail_out = outsize_max;
|
|
fprintf(stderr, "Allocated %d bytes for output file (estimated upper bound)\n", outsize_max);
|
|
|
|
ret = deflateInit(&compressed_fpga_stream, COMPRESS_LEVEL);
|
|
|
|
if (ret == Z_OK) {
|
|
ret = deflate(&compressed_fpga_stream, Z_FINISH);
|
|
}
|
|
|
|
fprintf(stderr, "produced %d bytes of output\n", compressed_fpga_stream.total_out);
|
|
|
|
if (ret != Z_STREAM_END) {
|
|
fprintf(stderr, "Error in deflate(): %d %s\n", ret, compressed_fpga_stream.msg);
|
|
free(outbuf);
|
|
deflateEnd(&compressed_fpga_stream);
|
|
fclose(infile);
|
|
fclose(outfile);
|
|
return -1;
|
|
}
|
|
|
|
for (i = 0; i < compressed_fpga_stream.total_out; i++) {
|
|
fputc(outbuf[i], outfile);
|
|
}
|
|
|
|
free(outbuf);
|
|
deflateEnd(&compressed_fpga_stream);
|
|
fclose(infile);
|
|
fclose(outfile);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
char *infilename;
|
|
char *outfilename;
|
|
|
|
if (argc != 3) {
|
|
usage(argv[0]);
|
|
return -1;
|
|
} else {
|
|
infilename = argv[1];
|
|
outfilename = argv[2];
|
|
}
|
|
|
|
FILE *infile = fopen(infilename, "rb");
|
|
if (infile == NULL) {
|
|
fprintf(stderr, "Error. Cannot open input file %s", infilename);
|
|
return -1;
|
|
}
|
|
|
|
FILE *outfile = fopen(outfilename, "wb");
|
|
if (outfile == NULL) {
|
|
fprintf(stderr, "Error. Cannot open output file %s", outfilename);
|
|
fclose(infile);
|
|
return -1;
|
|
}
|
|
|
|
return zlib_compress(infile, outfile);
|
|
}
|