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/*
* lar - Lua Archive Library
*
* Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __LAR_H
#define __LAR_H
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include "md5.h"
#define LAR_DIE(s) \
do { \
fprintf(stderr, "%s(%i): %s(): %s\n", \
__FILE__, __LINE__, __FUNCTION__, s); \
if( errno ) fprintf(stderr, "%s(%i): %s\n", \
__FILE__, __LINE__, strerror(errno) ); \
exit(1); \
} while(0)
#define LAR_FNAME_BUFFER 1024
#define LAR_FNAME(s) char s[LAR_FNAME_BUFFER]
#define LAR_TYPE_REGULAR 0x0000
#define LAR_TYPE_FILELIST 0xFFFF
#ifdef __WIN32__
#define LAR_DIRSEP '\\'
#else
#define LAR_DIRSEP '/'
#endif
struct lar_index_item {
uint32_t offset;
uint32_t length;
uint16_t type;
uint16_t flags;
char id[16];
char *filename;
struct lar_index_item *next;
};
struct lar_member_item {
uint16_t type;
uint16_t flags;
uint32_t length;
char *data;
char *mmap;
size_t mlen;
};
struct lar_archive_handle {
int fd;
int has_filenames;
off_t length;
char filename[LAR_FNAME_BUFFER];
struct lar_index_item *index;
};
typedef struct lar_index_item lar_index;
typedef struct lar_member_item lar_member;
typedef struct lar_archive_handle lar_archive;
/*
static int lar_read_filenames( lar_archive *ar );
static int lar_read32( int fd, uint32_t *val );
static int lar_read16( int fd, uint16_t *val );
static void lar_md5( char *md5, const char *data, int len );
*/
lar_index * lar_get_index( lar_archive *ar );
lar_member * lar_mmap_member( lar_archive *ar, lar_index *idx_ptr );
lar_member * lar_open_member( lar_archive *ar, const char *name );
int lar_close_member( lar_member *member );
lar_archive * lar_open( const char *filename );
int lar_close( lar_archive *ar );
lar_archive * lar_find_archive( const char *package, const char *path, int pkg);
lar_member * lar_find_member( lar_archive *ar, const char *package );
#endif
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