diff options
Diffstat (limited to 'src/compression.c')
| -rw-r--r-- | src/compression.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/compression.c b/src/compression.c new file mode 100644 index 0000000..cf88de6 --- /dev/null +++ b/src/compression.c @@ -0,0 +1,226 @@ +#include <stdlib.h> +#include <string.h> +#include <zlib.h> +#include "logging.h" + +static void +zlib_err(int status) +{ + switch (status) { + case Z_OK: + case Z_STREAM_END: + break; + case Z_MEM_ERROR: + err(1, "zlib error: out of memory"); + break; + case Z_VERSION_ERROR: + err(1, "zlib error: incompatible library version"); + break; + case Z_STREAM_ERROR: + err(1, "zlib error: invalid stream"); + break; + case Z_NEED_DICT: + err(1, "zlib error: need dictionary"); + break; + case Z_DATA_ERROR: + err(1, "zlib error: corrupted data"); + break; + case Z_BUF_ERROR: + err(1, "zlib error: buffer error"); + break; + default: + err(1, "zlib error: unknown"); + break; + } +} + +void +decompress(const char *src, size_t src_len, char *dest, size_t dest_len) +{ + z_stream d_stream; + + d_stream.zalloc = Z_NULL; + d_stream.zfree = Z_NULL; + d_stream.opaque = Z_NULL; + d_stream.next_in = (Bytef *) src; + d_stream.avail_in = src_len; + d_stream.next_out = (Bytef *) dest; + d_stream.avail_out = dest_len; + + debug("Initializing inflation stream..."); + zlib_err(inflateInit2(&d_stream, 15 + 32)); + + debug("Inflating %d bytes into up to %d bytes...", src_len, dest_len); + zlib_err(inflate(&d_stream, Z_NO_FLUSH)); + + debug("Ending inflation stream..."); + zlib_err(inflateEnd(&d_stream)); +} + +#if 0 +#include <stdio.h> +#include "base64.h" + +int +main() +{ + char decoded_data[4801], compressed_data[4801], decompressed_data[4801]; + + base64_decode( + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAAAcAAAAHQAAAB0AAAAeAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAAAcAAAA" + "HQAAAB0AAAAeAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAAAcAAAAHQAAAB0AAAAeAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAAAcAAAAHQAAAB0AAAAeAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAAAMAAAADQAAAA0AAAANAAAADQAAAA0AAABvAAAA" + "HQAAAB0AAAAeAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAAAcAAAAHQAAAB0AAAAdAAAA" + "HQAAAB0AAAAdAAAAHQAAAB0AAAAeAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAAAcAAAA" + "HQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAAHQAAAB0AAAAeAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAAAcAAAAHQAAAB0AAACAAAAALQAAAC0AAAAtAAAA" + "LQAAAC0AAAAuAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAAAcAAAAHQAAAB0AAAAeAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAAAcAAAA" + "HQAAAB0AAAAeAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAAAcAAAAHQAAAB0AAAAeAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAAAcAAAAHQAAAB0AAAAeAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAAAcAAAA" + "HQAAAB0AAAAeAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAAAcAAAAHQAAAB0AAAAeAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAAAcAAAAHQAAAB0AAAAeAAAA" + "TwAAAFAAAAAMAAAADQAAAA0AAAANAAAADQAAAA0AAAANAAAA" + "DQAAAA0AAAANAAAADQAAAA4AAABPAAAAUAAAAE8AAABQAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAAAcAAAA" + "HQAAAB0AAAAeAAAAXwAAAGAAAAAcAAAAHQAAAB0AAAAdAAAA" + "HQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAAHQAAAB4AAABfAAAA" + "YAAAAF8AAABgAAAATwAAAFAAAAAMAAAADQAAAA0AAAANAAAA" + "DQAAAA0AAABvAAAAHQAAAB0AAAAeAAAATwAAAFAAAAAcAAAA" + "HQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAA" + "HQAAAB4AAABPAAAAUAAAAE8AAABQAAAAXwAAAGAAAAAcAAAA" + "HQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAAHQAAAB0AAAAeAAAA" + "XwAAAGAAAAAcAAAAHQAAAB0AAACAAAAALQAAAC0AAAAtAAAA" + "LQAAAH8AAAAdAAAAHQAAAB4AAABfAAAAYAAAAF8AAABgAAAA" + "TwAAAFAAAAAcAAAAHQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAA" + "HQAAAB0AAAAeAAAATwAAAFAAAAAcAAAAHQAAAB0AAAAeAAAA" + "TwAAAFAAAABPAAAAUAAAABwAAAAdAAAAHQAAAB4AAABPAAAA" + "UAAAAE8AAABQAAAAXwAAAGAAAAAcAAAAHQAAAB0AAACAAAAA" + "LQAAAC0AAAAtAAAALQAAAC0AAAAuAAAAXwAAAGAAAAAcAAAA" + "HQAAAB0AAAAeAAAAXwAAAGAAAABfAAAAYAAAABwAAAAdAAAA" + "HQAAAB4AAABfAAAAYAAAAF8AAABgAAAATwAAAFAAAAAcAAAA" + "HQAAAB0AAAAeAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAAAcAAAAHQAAAB0AAAAeAAAATwAAAFAAAABPAAAA" + "UAAAABwAAAAdAAAAHQAAAB4AAABPAAAAUAAAAE8AAABQAAAA" + "XwAAAGAAAAAcAAAAHQAAAB0AAAAeAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAAAcAAAAHQAAAB0AAAAeAAAA" + "XwAAAGAAAABfAAAAYAAAABwAAAAdAAAAHQAAAB4AAABfAAAA" + "YAAAAF8AAABgAAAATwAAAFAAAAAcAAAAHQAAAB0AAAAeAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAAAcAAAA" + "HQAAAB0AAAAeAAAATwAAAFAAAABPAAAAUAAAABwAAAAdAAAA" + "HQAAAB4AAABPAAAAUAAAAE8AAABQAAAAXwAAAGAAAAAcAAAA" + "HQAAAB0AAAAeAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAAAcAAAAHQAAAB0AAAAeAAAAXwAAAGAAAABfAAAA" + "YAAAABwAAAAdAAAAHQAAAB4AAABfAAAAYAAAAF8AAABgAAAA" + "TwAAAFAAAAAcAAAAHQAAAB0AAABwAAAADQAAAA0AAAANAAAA" + "DQAAAA0AAAANAAAADQAAAA0AAABvAAAAHQAAAB0AAAAeAAAA" + "TwAAAFAAAABPAAAAUAAAABwAAAAdAAAAHQAAAB4AAABPAAAA" + "UAAAAE8AAABQAAAAXwAAAGAAAAAcAAAAHQAAAB0AAAAdAAAA" + "HQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAA" + "HQAAAB0AAAAeAAAAXwAAAGAAAABfAAAAYAAAABwAAAAdAAAA" + "HQAAAB4AAABfAAAAYAAAAF8AAABgAAAATwAAAFAAAAAcAAAA" + "HQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAAHQAAAB0AAAAdAAAA" + "HQAAAB0AAAAdAAAAHQAAAB0AAAAeAAAATwAAAFAAAABPAAAA" + "UAAAABwAAAAdAAAAHQAAAB4AAABPAAAAUAAAAE8AAABQAAAA" + "XwAAAGAAAAAsAAAALQAAAC0AAAAtAAAALQAAAC0AAAAtAAAA" + "LQAAAC0AAAAtAAAALQAAAC0AAAAtAAAALQAAAC0AAAAuAAAA" + "XwAAAGAAAABfAAAAYAAAABwAAAAdAAAAHQAAAB4AAABfAAAA" + "YAAAAF8AAABgAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAABwAAAAdAAAA" + "HQAAAB4AAABPAAAAUAAAAE8AAABQAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAABwAAAAdAAAAHQAAAB4AAABfAAAAYAAAAF8AAABgAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAABPAAAAUAAAABwAAAAdAAAAHQAAAB4AAABPAAAA" + "UAAAAE8AAABQAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAABfAAAAYAAAABwAAAAdAAAA" + "HQAAAB4AAABfAAAAYAAAAF8AAABgAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAADAAAAA0AAAANAAAA" + "DQAAAG8AAAAdAAAAHQAAAB4AAABPAAAAUAAAAE8AAABQAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "HAAAAB0AAAAdAAAAHQAAAB0AAAAdAAAAHQAAAB4AAABfAAAA" + "YAAAAF8AAABgAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAAHAAAAB0AAAAdAAAAHQAAAB0AAAAdAAAA" + "HQAAAB4AAABPAAAAUAAAAE8AAABQAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAHAAAAB0AAAAdAAAA" + "gAAAAC0AAAAtAAAALQAAAC4AAABfAAAAYAAAAF8AAABgAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "HAAAAB0AAAAdAAAAHgAAAE8AAABQAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAHAAAAB0AAAAdAAAAHgAAAF8AAABgAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAATwAAAFAAAABPAAAA" + "UAAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "TwAAAFAAAABPAAAAUAAAAE8AAABQAAAAHAAAAB0AAAAdAAAA" + "HgAAAE8AAABQAAAATwAAAFAAAABPAAAAUAAAAE8AAABQAAAA" + "XwAAAGAAAABfAAAAYAAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAAXwAAAGAAAABfAAAAYAAAAF8AAABgAAAA" + "HAAAAB0AAAAdAAAAHgAAAF8AAABgAAAAXwAAAGAAAABfAAAA" + "YAAAAF8AAABgAAAA", + decoded_data, 4801); + base64_decode( + "eJztlsERAjEIRSlArUCtwLWVtQPtQDtwS18OHpwdIvwv7EFz" + "+MMhkyEvgR9GEbmoRjDuVYeXjsT+q+pGxGVedD96zl/n3ai2" + "hu7FvO9cLVXwRvNW8k6qwdC5mJfhyuBl3rHzdl6Et+VjlnaJ" + "vBE/+XRPrA+jeVu8qA97PvYM8qI+7NW5t876sFfn3jrbpxW8" + "kT7tvN/zPsT3IG++YnhRZfEyeVnek9g9G5E1X0V5s2OUNzt2" + "3hre5f/t9XcFHzJvZL4nMm9k8k7i9/da9bsGb+Q/+zfeGUt8" + "RgE=", + compressed_data, 4801); + decompress(compressed_data, decompressed_data, 4801); + decoded_data[4800] = '\0'; + compressed_data[4800] = '\0'; + decompressed_data[4800] = '\0'; + if (strncmp(decoded_data, decompressed_data, 4800) == 0) { + puts("Matched!"); + } else { + puts("No match. :("); + } + + return 0; +} +#endif |