289acf3333
The build system used by rbutil is not very robust: all the files are eventually compiled to the same directory so we cannot have two files with the same name (system.c would conflicts with system.cpp) so rename one file to avoid this. Also change all include directives to local ones because we don't have to expose the entire mspack source to inclusion. Change-Id: I3fe0638d69fdc30566eb9425abfe33c807678b28 Reviewed-on: http://gerrit.rockbox.org/417 Reviewed-by: Dominik Riebeling <Dominik.Riebeling@gmail.com>
124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/* 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
|