z_stream zstream;
struct stat statbuf;
- if (argc < 3)
- {
+ if (argc < 3) {
printf("Usage: %s <infile.swf> <outfile.swf>\n", argv[0]);
return 1;
}
fd_in = open(argv[1], O_RDONLY);
- if (fd_in < 0)
- {
+ if (fd_in < 0) {
perror("Error opening input file");
return 1;
}
- fd_out = open(argv[2], O_WRONLY|O_CREAT, 00644);
- if (fd_out < 0)
- {
+ fd_out = open(argv[2], O_WRONLY | O_CREAT, 00644);
+ if (fd_out < 0) {
perror("Error opening output file");
close(fd_in);
return 1;
}
- if (read(fd_in, &buf_in, 8) != 8)
- {
+ if (read(fd_in, &buf_in, 8) != 8) {
printf("Header error\n");
close(fd_in);
close(fd_out);
return 1;
}
- if (buf_in[0] != 'C' || buf_in[1] != 'W' || buf_in[2] != 'S')
- {
+ if (buf_in[0] != 'C' || buf_in[1] != 'W' || buf_in[2] != 'S') {
printf("Not a compressed flash file\n");
return 1;
}
fstat(fd_in, &statbuf);
- comp_len = statbuf.st_size;
+ comp_len = statbuf.st_size;
uncomp_len = buf_in[4] | (buf_in[5] << 8) | (buf_in[6] << 16) | (buf_in[7] << 24);
- printf("Compressed size: %d Uncompressed size: %d\n", comp_len-4, uncomp_len-4);
+ printf("Compressed size: %d Uncompressed size: %d\n",
+ comp_len - 4, uncomp_len - 4);
// write out modified header
buf_in[0] = 'F';
}
zstream.zalloc = NULL;
- zstream.zfree = NULL;
+ zstream.zfree = NULL;
zstream.opaque = NULL;
inflateInit(&zstream);
- for (i = 0; i < comp_len-8;)
- {
+ for (i = 0; i < comp_len - 8;) {
int ret, len = read(fd_in, &buf_in, 1024);
dbgprintf("read %d bytes\n", len);
last_out = zstream.total_out;
- zstream.next_in = &buf_in[0];
- zstream.avail_in = len;
- zstream.next_out = &buf_out[0];
+ zstream.next_in = &buf_in[0];
+ zstream.avail_in = len;
+ zstream.next_out = &buf_out[0];
zstream.avail_out = 65536;
ret = inflate(&zstream, Z_SYNC_FLUSH);
- if (ret != Z_STREAM_END && ret != Z_OK)
- {
+ if (ret != Z_STREAM_END && ret != Z_OK) {
printf("Error while decompressing: %d\n", ret);
inflateEnd(&zstream);
return 1;
}
dbgprintf("a_in: %d t_in: %lu a_out: %d t_out: %lu -- %lu out\n",
- zstream.avail_in, zstream.total_in, zstream.avail_out, zstream.total_out,
- zstream.total_out-last_out);
+ zstream.avail_in, zstream.total_in, zstream.avail_out,
+ zstream.total_out, zstream.total_out - last_out);
- if (write(fd_out, &buf_out, zstream.total_out - last_out) < zstream.total_out - last_out) {
+ if (write(fd_out, &buf_out, zstream.total_out - last_out) <
+ zstream.total_out - last_out) {
perror("Error writing output file");
return 1;
}
break;
}
- if (zstream.total_out != uncomp_len-8)
- {
+ if (zstream.total_out != uncomp_len - 8) {
printf("Size mismatch (%lu != %d), updating header...\n",
- zstream.total_out, uncomp_len-8);
+ zstream.total_out, uncomp_len - 8);
- buf_in[0] = (zstream.total_out+8) & 0xff;
- buf_in[1] = ((zstream.total_out+8) >> 8) & 0xff;
- buf_in[2] = ((zstream.total_out+8) >> 16) & 0xff;
- buf_in[3] = ((zstream.total_out+8) >> 24) & 0xff;
+ buf_in[0] = (zstream.total_out + 8) & 0xff;
+ buf_in[1] = ((zstream.total_out + 8) >> 8) & 0xff;
+ buf_in[2] = ((zstream.total_out + 8) >> 16) & 0xff;
+ buf_in[3] = ((zstream.total_out + 8) >> 24) & 0xff;
lseek(fd_out, 4, SEEK_SET);
if (write(fd_out, &buf_in, 4) < 4) {