diff options
Diffstat (limited to 'lib/liblzf-3.5/lzf_d.c')
| -rw-r--r-- | lib/liblzf-3.5/lzf_d.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/lib/liblzf-3.5/lzf_d.c b/lib/liblzf-3.5/lzf_d.c deleted file mode 100644 index 9e2cd829c3..0000000000 --- a/lib/liblzf-3.5/lzf_d.c +++ /dev/null @@ -1,148 +0,0 @@ -/* - * Copyright (c) 2000-2007 Marc Alexander Lehmann <schmorp@schmorp.de> - * - * Redistribution and use in source and binary forms, with or without modifica- - * tion, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- - * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO - * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- - * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- - * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License ("GPL") version 2 or any later version, - * in which case the provisions of the GPL are applicable instead of - * the above. If you wish to allow the use of your version of this file - * only under the terms of the GPL and not to allow others to use your - * version of this file under the BSD license, indicate your decision - * by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL. If you do not delete the - * provisions above, a recipient may use your version of this file under - * either the BSD or the GPL. - */ - -#include "lzfP.h" - -#if AVOID_ERRNO -# define SET_ERRNO(n) -#else -# include <errno.h> -# define SET_ERRNO(n) errno = (n) -#endif - -#if (__i386 || __amd64) && __GNUC__ >= 3 -# define lzf_movsb(dst, src, len) \ - asm ("rep movsb" \ - : "=D" (dst), "=S" (src), "=c" (len) \ - : "0" (dst), "1" (src), "2" (len)); -#endif - -unsigned int -lzf_decompress (const void *const in_data, unsigned int in_len, - void *out_data, unsigned int out_len) -{ - u8 const *ip = (const u8 *)in_data; - u8 *op = (u8 *)out_data; - u8 const *const in_end = ip + in_len; - u8 *const out_end = op + out_len; - - do - { - unsigned int ctrl = *ip++; - - if (ctrl < (1 << 5)) /* literal run */ - { - ctrl++; - - if (op + ctrl > out_end) - { - SET_ERRNO (E2BIG); - return 0; - } - -#if CHECK_INPUT - if (ip + ctrl > in_end) - { - SET_ERRNO (EINVAL); - return 0; - } -#endif - -#ifdef lzf_movsb - lzf_movsb (op, ip, ctrl); -#else - do - *op++ = *ip++; - while (--ctrl); -#endif - } - else /* back reference */ - { - unsigned int len = ctrl >> 5; - - u8 *ref = op - ((ctrl & 0x1f) << 8) - 1; - -#if CHECK_INPUT - if (ip >= in_end) - { - SET_ERRNO (EINVAL); - return 0; - } -#endif - if (len == 7) - { - len += *ip++; -#if CHECK_INPUT - if (ip >= in_end) - { - SET_ERRNO (EINVAL); - return 0; - } -#endif - } - - ref -= *ip++; - - if (op + len + 2 > out_end) - { - SET_ERRNO (E2BIG); - return 0; - } - - if (ref < (u8 *)out_data) - { - SET_ERRNO (EINVAL); - return 0; - } - -#ifdef lzf_movsb - len += 2; - lzf_movsb (op, ref, len); -#else - *op++ = *ref++; - *op++ = *ref++; - - do - *op++ = *ref++; - while (--len); -#endif - } - } - while (ip < in_end); - - return op - (u8 *)out_data; -} - |