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Diffstat (limited to 'rbutil/rbutilqt/mspack/system.h')
-rw-r--r-- | rbutil/rbutilqt/mspack/system.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/rbutil/rbutilqt/mspack/system.h b/rbutil/rbutilqt/mspack/system.h new file mode 100644 index 0000000000..4a400850aa --- /dev/null +++ b/rbutil/rbutilqt/mspack/system.h @@ -0,0 +1,124 @@ +/* This file is part of libmspack. + * (C) 2003-2004 Stuart Caie. + * + * libmspack is free software; you can redistribute it and/or modify it under + * the terms of the GNU Lesser General Public License (LGPL) version 2.1 + * + * For further details, see the file COPYING.LIB distributed with libmspack + */ + +#ifndef MSPACK_SYSTEM_H +#define MSPACK_SYSTEM_H 1 + +#ifdef __cplusplus +extern "C" { +#endif + +/* ensure config.h is read before mspack.h */ +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <mspack.h> + +/* fix for problem with GCC 4 and glibc (thanks to Ville Skytta) + * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=150429 + */ +#ifdef read +# undef read +#endif + +#ifdef DEBUG +# include <stdio.h> +/* Old GCCs don't have __func__, but __FUNCTION__: + * http://gcc.gnu.org/onlinedocs/gcc/Function-Names.html + */ +# if __STDC_VERSION__ < 199901L +# if __GNUC__ >= 2 +# define __func__ __FUNCTION__ +# else +# define __func__ "<unknown>" +# endif +# endif +# define D(x) do { printf("%s:%d (%s) ",__FILE__, __LINE__, __func__); \ + printf x ; fputc('\n', stdout); fflush(stdout);} while (0); +#else +# define D(x) +#endif + +/* CAB supports searching through files over 4GB in size, and the CHM file + * format actively uses 64-bit offsets. These can only be fully supported + * if the system the code runs on supports large files. If not, the library + * will work as normal using only 32-bit arithmetic, but if an offset + * greater than 2GB is detected, an error message indicating the library + * can't support the file should be printed. + */ +#ifdef HAVE_LIMITS_H +# include <limits.h> +#endif + +#if ((defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS >= 64) || \ + (defined(FILESIZEBITS) && FILESIZEBITS >= 64) || \ + (defined(SIZEOF_OFF_T) && SIZEOF_OFF_T >= 8) || \ + defined(_LARGEFILE_SOURCE) || defined(_LARGEFILE64_SOURCE)) +# define LARGEFILE_SUPPORT +# define LD "lld" +# define LU "llu" +#else +extern const char *largefile_msg; +# define LD "ld" +# define LU "lu" +#endif + +/* endian-neutral reading of little-endian data */ +#define __egi32(a,n) ( ((((unsigned char *) a)[n+3]) << 24) | \ + ((((unsigned char *) a)[n+2]) << 16) | \ + ((((unsigned char *) a)[n+1]) << 8) | \ + ((((unsigned char *) a)[n+0]))) +#define EndGetI64(a) ((((unsigned long long int) __egi32(a,4)) << 32) | \ + ((unsigned int) __egi32(a,0))) +#define EndGetI32(a) __egi32(a,0) +#define EndGetI16(a) ((((a)[1])<<8)|((a)[0])) + +/* endian-neutral reading of big-endian data */ +#define EndGetM32(a) (((((unsigned char *) a)[0]) << 24) | \ + ((((unsigned char *) a)[1]) << 16) | \ + ((((unsigned char *) a)[2]) << 8) | \ + ((((unsigned char *) a)[3]))) +#define EndGetM16(a) ((((a)[0])<<8)|((a)[1])) + +extern struct mspack_system *mspack_default_system; + +/* returns the length of a file opened for reading */ +extern int mspack_sys_filelen(struct mspack_system *system, + struct mspack_file *file, off_t *length); + +/* validates a system structure */ +extern int mspack_valid_system(struct mspack_system *sys); + +#if HAVE_STRINGS_H +# include <strings.h> +#endif + +#if HAVE_STRING_H +# include <string.h> +#endif + +#if HAVE_MEMCMP +# define mspack_memcmp memcmp +#else +/* inline memcmp() */ +static inline int mspack_memcmp(const void *s1, const void *s2, size_t n) { + unsigned char *c1 = (unsigned char *) s1; + unsigned char *c2 = (unsigned char *) s2; + if (n == 0) return 0; + while (--n && (*c1 == *c2)) c1++, c2++; + return *c1 - *c2; +} +#endif + +#ifdef __cplusplus +} +#endif + +#endif |