archivers/lzma.c
author Ryan C. Gordon <icculus@icculus.org>
Wed, 27 Sep 2006 07:05:03 +0000
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parent 775 a8cc6b8a8e9c
child 782 5633b9a0c6b6
permissions -rw-r--r--
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/*
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 * LZMA support routines for PhysicsFS.
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 *
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 * Please see the file LICENSE in the source's root directory.
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 *
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 *  This file written by Dennis Schridde, with some peeking at "7zMain.c"
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 *   by Igor Pavlov.
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 */
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#if HAVE_CONFIG_H
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#  include <config.h>
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#endif
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#if (defined PHYSFS_SUPPORTS_LZMA)
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#include <stdlib.h>
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#include <string.h>
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#include "physfs.h"
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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#define _LZMA_IN_CB
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/* Use callback for input data */
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/* #define _LZMA_OUT_READ */
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/* Use read function for output data */
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#define _LZMA_PROB32
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/* It can increase speed on some 32-bit CPUs,
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   but memory usage will be doubled in that case */
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#define _LZMA_SYSTEM_SIZE_T
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/* Use system's size_t. You can use it to enable 64-bit sizes supporting */
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#include "7zIn.h"
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#include "7zCrc.h"
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#include "7zExtract.h"
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/* 7z internal from 7zIn.c */
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int TestSignatureCandidate(Byte *testBytes);
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typedef struct _CFileInStream
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{
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    ISzInStream InStream;
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    void *File;
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} CFileInStream;
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/* Set by LZMA_openArchive, except blockXXX which is handled by LZMA_read() */
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typedef struct _LZMAarchive
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{
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    struct _LZMAentry *firstEntry; /* Used for cleanup on shutdown */
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    struct _LZMAentry *lastEntry;
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    CArchiveDatabaseEx db; /* For 7z: Database */
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    CFileInStream stream; /* For 7z: Input file incl. read and seek callbacks */
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    unsigned char *block; /* Currently cached block */
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    size_t blockSize; /* Size of current block */
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    PHYSFS_uint32 blockIndex; /* Index of current block */
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} LZMAarchive;
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/* Set by LZMA_openRead(), except offset which is set by LZMA_read() */
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typedef struct _LZMAentry
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{
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    struct _LZMAentry *next; /* Used for cleanup on shutdown */
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    struct _LZMAentry *previous;
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    LZMAarchive *archive; /* Link to corresponding archive */
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    CFileItem *file; /* For 7z: File info, eg. name, size */
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    PHYSFS_uint32 index; /* Index inside the archive */
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    size_t offset; /* Offset inside archive block */
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    PHYSFS_uint32 position; /* Current "virtual" position in file */
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} LZMAentry;
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/* Memory management implementations to be passed to 7z */
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static void *SzAllocPhysicsFS(size_t size)
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{
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    return ((size == 0) ? NULL : allocator.Malloc(size));
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} /* SzAllocPhysicsFS */
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static void SzFreePhysicsFS(void *address)
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{
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    if (address != NULL)
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        allocator.Free(address);
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} /* SzFreePhysicsFS */
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/* Filesystem implementations to be passed to 7z */
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#ifdef _LZMA_IN_CB
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#define kBufferSize (1 << 12)
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static Byte g_Buffer[kBufferSize];  /* !!! FIXME: not thread safe! */
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SZ_RESULT SzFileReadImp(void *object, void **buffer, size_t maxReqSize,
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                        size_t *processedSize)
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{
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    CFileInStream *s = (CFileInStream *)object;
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    size_t processedSizeLoc;
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    if (maxReqSize > kBufferSize)
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        maxReqSize = kBufferSize;
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    processedSizeLoc = __PHYSFS_platformRead(s->File, g_Buffer, 1, maxReqSize);
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    *buffer = g_Buffer;
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    if (processedSize != 0)
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        *processedSize = processedSizeLoc;
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    return SZ_OK;
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} /* SzFileReadImp */
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#else
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SZ_RESULT SzFileReadImp(void *object, void *buffer, size_t size,
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                        size_t *processedSize)
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{
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    CFileInStream *s = (CFileInStream *)object;
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    size_t processedSizeLoc = __PHYSFS_platformRead(s->File, buffer, 1, size);
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    if (processedSize != 0)
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        *processedSize = processedSizeLoc;
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    return SZ_OK;
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} /* SzFileReadImp */
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#endif
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SZ_RESULT SzFileSeekImp(void *object, CFileSize pos)
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{
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    CFileInStream *s = (CFileInStream *) object;
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    if (__PHYSFS_platformSeek(s->File, (PHYSFS_uint64) pos))
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        return SZ_OK;
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    return SZE_FAIL;
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} /* SzFileSeekImp */
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780
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/*
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 * Find entry 'name' in 'archive' and report the 'index' back
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 */
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static int lzma_find_entry(LZMAarchive *archive, const char *name,
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                           PHYSFS_uint32 *index)
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{
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    for (*index = 0; *index < archive->db.Database.NumFiles; (*index)++)
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    {
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        if (strcmp(archive->db.Database.Files[*index].Name, name) == 0)
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            return 1;
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    } /* for */
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    BAIL_MACRO(ERR_NO_SUCH_FILE, 0);
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} /* lzma_find_entry */
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780
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/*
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 * Report the first file index of a directory
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 */
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static PHYSFS_sint32 lzma_find_start_of_dir(LZMAarchive *archive,
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                                            const char *path,
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                                            int stop_on_first_find)
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{
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    PHYSFS_sint32 lo = 0;
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    PHYSFS_sint32 hi = (PHYSFS_sint32) (archive->db.Database.NumFiles - 1);
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    PHYSFS_sint32 middle;
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    PHYSFS_uint32 dlen = strlen(path);
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    PHYSFS_sint32 retval = -1;
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    const char *name;
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    int rc;
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   168
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    if (*path == '\0')  /* root dir? */
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        return(0);
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    if ((dlen > 0) && (path[dlen - 1] == '/')) /* ignore trailing slash. */
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        dlen--;
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   174
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    while (lo <= hi)
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    {
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        middle = lo + ((hi - lo) / 2);
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        name = archive->db.Database.Files[middle].Name;
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        rc = strncmp(path, name, dlen);
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        if (rc == 0)
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        {
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            char ch = name[dlen];
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            if ('/' < ch) /* make sure this isn't just a substr match. */
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                rc = -1;
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            else if ('/' > ch)
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                rc = 1;
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   187
            else
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            {
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   189
                if (stop_on_first_find) /* Just checking dir's existance? */
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                    return(middle);
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   191
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   192
                if (name[dlen + 1] == '\0') /* Skip initial dir entry. */
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   193
                    return(middle + 1);
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   194
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                /* there might be more entries earlier in the list. */
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   196
                retval = middle;
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   197
                hi = middle - 1;
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   198
            } /* else */
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   199
        } /* if */
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   200
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   201
        if (rc > 0)
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            lo = middle + 1;
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   203
        else
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   204
            hi = middle - 1;
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   205
    } /* while */
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   206
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   207
    return(retval);
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   208
} /* lzma_find_start_of_dir */
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   209
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   210
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   211
/*
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   212
 * Wrap all 7z calls in this, so the physfs error state is set appropriately.
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 */
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   214
static int lzma_err(SZ_RESULT rc)
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   215
{
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   216
    switch (rc)
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    {
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   218
        case SZ_OK: /* Same as LZMA_RESULT_OK */
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   219
            break;
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   220
        case SZE_DATA_ERROR: /* Same as LZMA_RESULT_DATA_ERROR */
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   221
            __PHYSFS_setError(ERR_DATA_ERROR);
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   222
            break;
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   223
        case SZE_OUTOFMEMORY:
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diff changeset
   224
            __PHYSFS_setError(ERR_OUT_OF_MEMORY);
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   225
            break;
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diff changeset
   226
        case SZE_CRC_ERROR:
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   227
            __PHYSFS_setError(ERR_CORRUPTED);
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   228
            break;
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diff changeset
   229
        case SZE_NOTIMPL:
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diff changeset
   230
            __PHYSFS_setError(ERR_NOT_IMPLEMENTED);
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   231
            break;
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diff changeset
   232
        case SZE_FAIL:
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   233
            __PHYSFS_setError(ERR_UNKNOWN_ERROR);  /* !!! FIXME: right? */
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diff changeset
   234
            break;
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diff changeset
   235
        case SZE_ARCHIVE_ERROR:
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
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   236
            __PHYSFS_setError(ERR_CORRUPTED);  /* !!! FIXME: right? */
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   237
            break;
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   238
        default:
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   239
            __PHYSFS_setError(ERR_UNKNOWN_ERROR);
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diff changeset
   240
    } /* switch */
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diff changeset
   241
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
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   242
    return(rc);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
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diff changeset
   243
} /* lzma_err */
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diff changeset
   244
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   245
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static PHYSFS_sint64 LZMA_read(fvoid *opaque, void *outBuffer,
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                               PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
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{
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    LZMAentry *entry = (LZMAentry *) opaque;
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    PHYSFS_sint64 wantedSize = objSize*objCount;
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    PHYSFS_sint64 remainingSize = entry->file->Size - entry->position;
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    BAIL_IF_MACRO(wantedSize == 0, NULL, 0); /* quick rejection. */
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    BAIL_IF_MACRO(remainingSize == 0, ERR_PAST_EOF, 0);
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    if (remainingSize < wantedSize)
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    {
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        wantedSize = remainingSize - (remainingSize % objSize);
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        objCount = (PHYSFS_uint32) (remainingSize / objSize);
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        BAIL_IF_MACRO(objCount == 0, ERR_PAST_EOF, 0); /* quick rejection. */
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        __PHYSFS_setError(ERR_PAST_EOF); /* this is always true here. */
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    } /* if */
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    size_t fileSize;
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    ISzAlloc allocImp;
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    ISzAlloc allocTempImp;
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    /* Prepare callbacks for 7z */
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    allocImp.Alloc = SzAllocPhysicsFS;
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    allocImp.Free = SzFreePhysicsFS;
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    allocTempImp.Alloc = SzAllocPhysicsFS;
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    allocTempImp.Free = SzFreePhysicsFS;
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    if (lzma_err(SzExtract(
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        &entry->archive->stream.InStream, /* compressed data */
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        &entry->archive->db,
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        entry->index,
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        &entry->archive->blockIndex, /* Index of currently cached block, may be changed by SzExtract */
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        &entry->archive->block, /* Cache of current decompressed block, may be allocated/freed by SzExtract */
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        &entry->archive->blockSize, /* Size of current cache, may be changed by SzExtract */
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        &entry->offset, /* Offset of this file inside the cache block, set by SzExtract */
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        &fileSize, /* Size of this file */
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        &allocImp,
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        &allocTempImp
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            )) != SZ_OK)
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        return -1;
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    /* Copy wanted bytes over from cache to outBuffer */
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    strncpy(outBuffer,
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            (void*)(entry->archive->block + entry->offset + entry->position),
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            wantedSize);
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    entry->position += wantedSize;
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    return objCount;
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} /* LZMA_read */
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static PHYSFS_sint64 LZMA_write(fvoid *opaque, const void *buf,
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                               PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
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{
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    BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
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} /* LZMA_write */
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static int LZMA_eof(fvoid *opaque)
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{
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    LZMAentry *entry = (LZMAentry *) opaque;
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    return (entry->position >= entry->file->Size);
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} /* LZMA_eof */
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static PHYSFS_sint64 LZMA_tell(fvoid *opaque)
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{
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    LZMAentry *entry = (LZMAentry *) opaque;
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    return (entry->position);
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} /* LZMA_tell */
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static int LZMA_seek(fvoid *opaque, PHYSFS_uint64 offset)
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{
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    LZMAentry *entry = (LZMAentry *) opaque;
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   323
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    BAIL_IF_MACRO(offset < 0, ERR_SEEK_OUT_OF_RANGE, 0);
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    BAIL_IF_MACRO(offset > entry->file->Size, ERR_PAST_EOF, 0);
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    entry->position = offset;
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    return 1;
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} /* LZMA_seek */
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static PHYSFS_sint64 LZMA_fileLength(fvoid *opaque)
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{
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    LZMAentry *entry = (LZMAentry *) opaque;
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   335
    return (entry->file->Size);
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} /* LZMA_fileLength */
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static int LZMA_fileClose(fvoid *opaque)
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{
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    LZMAentry *entry = (LZMAentry *) opaque;
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   342
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    /* Fix archive */
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   344
    if (entry == entry->archive->firstEntry)
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   345
        entry->archive->firstEntry = entry->next;
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   346
    if (entry == entry->archive->lastEntry)
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   347
        entry->archive->lastEntry = entry->previous;
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   348
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   349
    /* Fix neighbours */
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   350
    if (entry->previous != NULL)
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   351
        entry->previous->next = entry->next;
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   352
    if (entry->next != NULL)
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   353
        entry->next->previous = entry->previous;
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   354
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    allocator.Free(entry);
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    entry = NULL;
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   357
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   358
    return(1);
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   359
} /* LZMA_fileClose */
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   360
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   361
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   362
static int LZMA_isArchive(const char *filename, int forWriting)
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   363
{
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   364
    PHYSFS_uint8 sig[k7zSignatureSize];
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   365
    PHYSFS_uint8 res;
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   366
    void *in;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   367
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   368
    BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, 0);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   369
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   370
    in = __PHYSFS_platformOpenRead(filename);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   371
    BAIL_IF_MACRO(in == NULL, NULL, 0);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   372
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   373
    if (__PHYSFS_platformRead(in, sig, k7zSignatureSize, 1) != 1)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   374
        BAIL_MACRO(NULL, 0);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   375
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   376
    /* Test whether sig is the 7z signature */
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   377
    res = TestSignatureCandidate(sig);
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   378
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   379
    __PHYSFS_platformClose(in);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   380
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   381
    return res;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   382
} /* LZMA_isArchive */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   383
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   384
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   385
static void *LZMA_openArchive(const char *name, int forWriting)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   386
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   387
    LZMAarchive *archive;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   388
    ISzAlloc allocImp;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   389
    ISzAlloc allocTempImp;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   390
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   391
    BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, NULL);
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   392
    BAIL_IF_MACRO(!LZMA_isArchive(name, forWriting), ERR_UNSUPPORTED_ARCHIVE, 0);
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   393
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   394
    archive = (LZMAarchive *) allocator.Malloc(sizeof (LZMAarchive));
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   395
    BAIL_IF_MACRO(archive == NULL, ERR_OUT_OF_MEMORY, NULL);
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   396
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   397
    archive->block = NULL;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   398
    archive->firstEntry = NULL;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   399
    archive->lastEntry = NULL;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   400
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   401
    if ((archive->stream.File = __PHYSFS_platformOpenRead(name)) == NULL)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   402
    {
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   403
        allocator.Free(archive);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   404
        return NULL;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   405
    } /* if */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   406
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   407
    /* Prepare structs for 7z */
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   408
    archive->stream.InStream.Read = SzFileReadImp;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   409
    archive->stream.InStream.Seek = SzFileSeekImp;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   410
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   411
    allocImp.Alloc = SzAllocPhysicsFS;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   412
    allocImp.Free = SzFreePhysicsFS;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   413
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   414
    allocTempImp.Alloc = SzAllocPhysicsFS;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   415
    allocTempImp.Free = SzFreePhysicsFS;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   416
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   417
    InitCrcTable();
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   418
    SzArDbExInit(&archive->db);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   419
    if (lzma_err(SzArchiveOpen(&archive->stream.InStream, &archive->db,
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   420
                               &allocImp, &allocTempImp)) != SZ_OK)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   421
    {
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   422
        __PHYSFS_platformClose(archive->stream.File);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   423
        allocator.Free(archive);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   424
        return NULL;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   425
    } /* if */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   426
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   427
    return(archive);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   428
} /* LZMA_openArchive */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   429
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   430
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   431
/*
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   432
 * Moved to seperate function so we can use alloca then immediately throw
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   433
 *  away the allocated stack space...
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   434
 */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   435
static void doEnumCallback(PHYSFS_EnumFilesCallback cb, void *callbackdata,
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   436
                           const char *odir, const char *str, PHYSFS_sint32 ln)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   437
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   438
    char *newstr = alloca(ln + 1);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   439
    if (newstr == NULL)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   440
        return;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   441
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   442
    memcpy(newstr, str, ln);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   443
    newstr[ln] = '\0';
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   444
    cb(callbackdata, odir, newstr);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   445
} /* doEnumCallback */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   446
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   447
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   448
static void LZMA_enumerateFiles(dvoid *opaque, const char *dname,
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   449
                                int omitSymLinks, PHYSFS_EnumFilesCallback cb,
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   450
                                const char *origdir, void *callbackdata)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   451
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   452
    LZMAarchive *archive = (LZMAarchive *) opaque;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   453
    PHYSFS_sint32 dlen;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   454
    PHYSFS_sint32 dlen_inc;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   455
    PHYSFS_sint32 max;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
    PHYSFS_sint32 i;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   457
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   458
    i = lzma_find_start_of_dir(archive, dname, 0);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   459
    if (i == -1)  /* no such directory. */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   460
        return;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   461
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   462
    dlen = strlen(dname);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   463
    if ((dlen > 0) && (dname[dlen - 1] == '/')) /* ignore trailing slash. */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   464
        dlen--;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   465
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   466
    dlen_inc = ((dlen > 0) ? 1 : 0) + dlen;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   467
    max = (PHYSFS_sint32) archive->db.Database.NumFiles;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   468
    while (i < max)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   469
    {
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   470
        char *add;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   471
        char *ptr;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   472
        PHYSFS_sint32 ln;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   473
        char *e = archive->db.Database.Files[i].Name;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   474
        if ((dlen) && ((strncmp(e, dname, dlen)) || (e[dlen] != '/')))
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   475
            break;  /* past end of this dir; we're done. */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   476
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   477
        add = e + dlen_inc;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   478
        ptr = strchr(add, '/');
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   479
        ln = (PHYSFS_sint32) ((ptr) ? ptr-add : strlen(add));
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   480
        doEnumCallback(cb, callbackdata, origdir, add, ln);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   481
        ln += dlen_inc;  /* point past entry to children... */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   482
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   483
        /* increment counter and skip children of subdirs... */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   484
        while ((++i < max) && (ptr != NULL))
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   485
        {
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   486
            char *e_new = archive->db.Database.Files[i].Name;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   487
            if ((strncmp(e, e_new, ln) != 0) || (e_new[ln] != '/'))
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   488
                break;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   489
        } /* while */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   490
    } /* while */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   491
} /* LZMA_enumerateFiles */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   492
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   493
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   494
static int LZMA_exists(dvoid *opaque, const char *name)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   495
{
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   496
    LZMAarchive *archive = (LZMAarchive *) opaque;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   497
    PHYSFS_uint32 index = 0;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   498
    return(lzma_find_entry(archive, name, &index));
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   499
} /* LZMA_exists */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   500
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   501
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   502
static PHYSFS_sint64 LZMA_getLastModTime(dvoid *opaque,
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   503
                                         const char *name,
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   504
                                         int *fileExists)
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   505
{
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   506
    /* !!! FIXME: Lacking support in the LZMA C SDK. */
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   507
    BAIL_MACRO(ERR_NOT_IMPLEMENTED, -1);
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   508
} /* LZMA_getLastModTime */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   509
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   510
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   511
static int LZMA_isDirectory(dvoid *opaque, const char *name, int *fileExists)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   512
{
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   513
    LZMAarchive *archive = (LZMAarchive *) opaque;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   514
    PHYSFS_uint32 index = 0;
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   515
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   516
    *fileExists = lzma_find_entry(archive, name, &index);
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   517
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   518
    return(archive->db.Database.Files[index].IsDirectory);
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   519
} /* LZMA_isDirectory */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   520
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   521
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   522
static int LZMA_isSymLink(dvoid *opaque, const char *name, int *fileExists)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   523
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   524
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   525
} /* LZMA_isSymLink */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   526
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   527
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   528
static fvoid *LZMA_openRead(dvoid *opaque, const char *name, int *fileExists)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   529
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   530
    LZMAarchive *archive = (LZMAarchive *) opaque;
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   531
    PHYSFS_uint32 index = 0;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   532
    LZMAentry *entry;
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   533
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   534
    *fileExists = lzma_find_entry(archive, name, &index);
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   535
    BAIL_IF_MACRO(!*fileExists, ERR_NO_SUCH_FILE, NULL);
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   536
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   537
    entry = (LZMAentry *) allocator.Malloc(sizeof (LZMAentry));
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   538
    BAIL_IF_MACRO(entry == NULL, ERR_OUT_OF_MEMORY, NULL);
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   539
    entry->index = index;
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   540
    entry->archive = archive;
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   541
    entry->file = archive->db.Database.Files + entry->index;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   542
    entry->offset = 0; /* Offset will be set by LZMA_read() */
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   543
    entry->position = 0;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   544
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   545
    entry->next = NULL;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   546
    entry->previous = entry->archive->lastEntry;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   547
    if (entry->previous != NULL)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   548
        entry->previous->next = entry;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   549
    entry->archive->lastEntry = entry;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   550
    if (entry->archive->firstEntry == NULL)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   551
        entry->archive->firstEntry = entry;
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   552
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   553
    return(entry);
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   554
} /* LZMA_openRead */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   555
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   556
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   557
static fvoid *LZMA_openWrite(dvoid *opaque, const char *filename)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   558
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   559
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   560
} /* LZMA_openWrite */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   561
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   562
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   563
static fvoid *LZMA_openAppend(dvoid *opaque, const char *filename)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   564
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   565
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   566
} /* LZMA_openAppend */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   567
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   568
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   569
static void LZMA_dirClose(dvoid *opaque)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   570
{
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   571
    LZMAarchive *archive = (LZMAarchive *) opaque;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   572
    LZMAentry *entry = archive->firstEntry;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   573
    LZMAentry *tmpEntry = entry;
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   574
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   575
    while (entry != NULL)
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   576
    {
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   577
        tmpEntry = entry->next;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   578
        LZMA_fileClose(entry);
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   579
        entry = tmpEntry;
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   580
    } /* while */
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   581
780
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   582
    SzArDbExFree(&archive->db, SzFreePhysicsFS);
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   583
    __PHYSFS_platformClose(archive->stream.File);
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   584
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   585
    /* Free the cache which might have been allocated by LZMA_read() */
8d029fecde3a Rewritten 7zip/lzma support (thanks, Dennis!)
Ryan C. Gordon <icculus@icculus.org>
parents: 775
diff changeset
   586
    allocator.Free(archive->block);
774
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   587
    allocator.Free(archive);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   588
} /* LZMA_dirClose */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   589
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   590
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   591
static int LZMA_remove(dvoid *opaque, const char *name)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   592
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   593
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   594
} /* LZMA_remove */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   595
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   596
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   597
static int LZMA_mkdir(dvoid *opaque, const char *name)
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   598
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   599
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   600
} /* LZMA_mkdir */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   601
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   602
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   603
const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_LZMA =
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   604
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   605
    "7Z",
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   606
    LZMA_ARCHIVE_DESCRIPTION,
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   607
    "Dennis Schridde <devurandom@gmx.net>",
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   608
    "http://icculus.org/physfs/",
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   609
};
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   610
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   611
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   612
const PHYSFS_Archiver __PHYSFS_Archiver_LZMA =
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   613
{
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   614
    &__PHYSFS_ArchiveInfo_LZMA,
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   615
    LZMA_isArchive,          /* isArchive() method      */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   616
    LZMA_openArchive,        /* openArchive() method    */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   617
    LZMA_enumerateFiles,     /* enumerateFiles() method */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   618
    LZMA_exists,             /* exists() method         */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   619
    LZMA_isDirectory,        /* isDirectory() method    */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   620
    LZMA_isSymLink,          /* isSymLink() method      */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   621
    LZMA_getLastModTime,     /* getLastModTime() method */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   622
    LZMA_openRead,           /* openRead() method       */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   623
    LZMA_openWrite,          /* openWrite() method      */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   624
    LZMA_openAppend,         /* openAppend() method     */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   625
    LZMA_remove,             /* remove() method         */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   626
    LZMA_mkdir,              /* mkdir() method          */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   627
    LZMA_dirClose,           /* dirClose() method       */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   628
    LZMA_read,               /* read() method           */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   629
    LZMA_write,              /* write() method          */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   630
    LZMA_eof,                /* eof() method            */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   631
    LZMA_tell,               /* tell() method           */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   632
    LZMA_seek,               /* seek() method           */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   633
    LZMA_fileLength,         /* fileLength() method     */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   634
    LZMA_fileClose           /* fileClose() method      */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   635
};
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   636
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   637
#endif  /* defined PHYSFS_SUPPORTS_LZMA */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   638
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   639
/* end of lzma.c ... */
916c2e81e77f 7zip support, written by Dennis Schridde, and heavily Ryanified by me.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   640