| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2000 Marc Alexander Lehmann <pcg@goof.com> |
2 | * Copyright (c) 2000-2002 Marc Alexander Lehmann <pcg@goof.com> |
| 3 | * |
3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without modifica- |
4 | * Redistribution and use in source and binary forms, with or without modifica- |
| 5 | * tion, are permitted provided that the following conditions are met: |
5 | * tion, are permitted provided that the following conditions are met: |
| 6 | * |
6 | * |
| 7 | * 1. Redistributions of source code must retain the above copyright notice, |
7 | * 1. Redistributions of source code must retain the above copyright notice, |
| … | |
… | |
| 32 | /*********************************************************************** |
32 | /*********************************************************************** |
| 33 | ** |
33 | ** |
| 34 | ** lzf -- an extremely fast/free compression/decompression-method |
34 | ** lzf -- an extremely fast/free compression/decompression-method |
| 35 | ** http://liblzf.plan9.de/ |
35 | ** http://liblzf.plan9.de/ |
| 36 | ** |
36 | ** |
| 37 | ** Based on ideas by Hermann Vogt, but liblzf is a total |
|
|
| 38 | ** re-implementation of LZV that is not compatible to the |
|
|
| 39 | ** original lzv code. |
|
|
| 40 | ** |
|
|
| 41 | ** This algorithm is believed to be patent-free. |
37 | ** This algorithm is believed to be patent-free. |
| 42 | ** |
38 | ** |
| 43 | ***********************************************************************/ |
39 | ***********************************************************************/ |
| 44 | |
40 | |
| 45 | /* |
41 | /* |
| … | |
… | |
| 68 | /* |
64 | /* |
| 69 | * Decompress data compressed with some version of the lzf_compress |
65 | * Decompress data compressed with some version of the lzf_compress |
| 70 | * function and stored at location in_data and length in_len. The result |
66 | * function and stored at location in_data and length in_len. The result |
| 71 | * will be stored at out_data up to a maximum of out_len characters. |
67 | * will be stored at out_data up to a maximum of out_len characters. |
| 72 | * |
68 | * |
| 73 | * If * the output buffer is not large enough to hold the decompressed |
69 | * If the output buffer is not large enough to hold the decompressed |
| 74 | * data, a 0 is returned and errno is set to E2BIG. Otherwise the number |
70 | * data, a 0 is returned and errno is set to E2BIG. Otherwise the number |
| 75 | * of decompressed bytes (i.e. the original length of the data) is |
71 | * of decompressed bytes (i.e. the original length of the data) is |
| 76 | * returned. |
72 | * returned. |
| 77 | * |
73 | * |
| 78 | * If an error in the compressed data is detected, a zero is returned and |
74 | * If an error in the compressed data is detected, a zero is returned and |
