misc/libphysfs/archiver_lzma.c
author Wuzzy <Wuzzy2@mail.ru>
Wed, 18 Apr 2018 17:12:15 +0200
changeset 13336 afc089c39556
parent 12213 bb5522e88ab2
permissions -rw-r--r--
Removed tag 0.9.24.1-release
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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 lzma.txt in the lzma/ directory.
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 *
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 *  This file was 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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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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#if PHYSFS_SUPPORTS_7Z
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#include "lzma/C/7zCrc.h"
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#include "lzma/C/Archive/7z/7zIn.h"
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#include "lzma/C/Archive/7z/7zExtract.h"
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/* 7z internal from 7zIn.c */
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extern int TestSignatureCandidate(Byte *testBytes);
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#ifdef _LZMA_IN_CB
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# define BUFFER_SIZE (1 << 12)
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#endif /* _LZMA_IN_CB */
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/*
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 * Carries filestream metadata through 7z
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 */
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typedef struct _FileInputStream
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{
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    ISzAlloc allocImp; /* Allocation implementation, used by 7z */
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    ISzAlloc allocTempImp; /* Temporary allocation implementation, used by 7z */
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    ISzInStream inStream; /* Input stream with read callbacks, used by 7z */
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    PHYSFS_Io *io;  /* Filehandle, used by read implementation */
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#ifdef _LZMA_IN_CB
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    Byte buffer[BUFFER_SIZE]; /* Buffer, used by read implementation */
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#endif /* _LZMA_IN_CB */
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} FileInputStream;
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/*
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 * In the 7z format archives are splited into blocks, those are called folders
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 * Set by LZMA_read()
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*/
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typedef struct _LZMAfolder
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{
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    PHYSFS_uint32 index; /* Index of folder in archive */
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    PHYSFS_uint32 references; /* Number of files using this block */
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    PHYSFS_uint8 *cache; /* Cached folder */
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    size_t size; /* Size of folder */
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} LZMAfolder;
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/*
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 * Set by LZMA_openArchive(), except folder which gets it's values
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 *  in LZMA_read()
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 */
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typedef struct _LZMAarchive
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{
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    struct _LZMAfile *files; /* Array of files, size == archive->db.Database.NumFiles */
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    LZMAfolder *folders; /* Array of folders, size == archive->db.Database.NumFolders */
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    CArchiveDatabaseEx db; /* For 7z: Database */
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    FileInputStream stream; /* For 7z: Input file incl. read and seek callbacks */
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} LZMAarchive;
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/* Set by LZMA_openArchive(), except offset which is set by LZMA_read() */
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typedef struct _LZMAfile
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{
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    PHYSFS_uint32 index; /* Index of file in archive */
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    LZMAarchive *archive; /* Link to corresponding archive */
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    LZMAfolder *folder; /* Link to corresponding folder */
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    CFileItem *item; /* For 7z: File info, eg. name, size */
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    size_t offset; /* Offset in folder */
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    size_t position; /* Current "virtual" position in file */
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} LZMAfile;
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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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/*
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 * Read implementation, to be passed to 7z
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 * WARNING: If the ISzInStream in 'object' is not contained in a valid FileInputStream this _will_ break horribly!
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 */
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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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    FileInputStream *s = (FileInputStream *)(object - offsetof(FileInputStream, inStream)); /* HACK! */
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    PHYSFS_sint64 processedSizeLoc = 0;
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    if (maxReqSize > BUFFER_SIZE)
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        maxReqSize = BUFFER_SIZE;
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    processedSizeLoc = s->io->read(s->io, s->buffer, maxReqSize);
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    *buffer = s->buffer;
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    if (processedSize != NULL)
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        *processedSize = (size_t) processedSizeLoc;
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    return SZ_OK;
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} /* SzFileReadImp */
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#else
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/*
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 * Read implementation, to be passed to 7z
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 * WARNING: If the ISzInStream in 'object' is not contained in a valid FileInputStream this _will_ break horribly!
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 */
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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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    FileInputStream *s = (FileInputStream *)((size_t)object - offsetof(FileInputStream, inStream)); /* HACK! */
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    const size_t processedSizeLoc = s->io->read(s->io, buffer, size);
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    if (processedSize != NULL)
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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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/*
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 * Seek implementation, to be passed to 7z
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 * WARNING: If the ISzInStream in 'object' is not contained in a valid FileInputStream this _will_ break horribly!
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 */
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SZ_RESULT SzFileSeekImp(void *object, CFileSize pos)
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{
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    FileInputStream *s = (FileInputStream *)((size_t)object - offsetof(FileInputStream, inStream)); /* HACK! */
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    if (s->io->seek(s->io, (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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/*
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 * Translate Microsoft FILETIME (used by 7zip) into UNIX timestamp
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 */
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static PHYSFS_sint64 lzma_filetime_to_unix_timestamp(CArchiveFileTime *ft)
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{
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    /* MS counts in nanoseconds ... */
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    const PHYSFS_uint64 FILETIME_NANOTICKS_PER_SECOND = __PHYSFS_UI64(10000000);
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    /* MS likes to count seconds since 01.01.1601 ... */
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    const PHYSFS_uint64 FILETIME_UNIX_DIFF = __PHYSFS_UI64(11644473600);
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    PHYSFS_uint64 filetime = ft->Low | ((PHYSFS_uint64)ft->High << 32);
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    return filetime/FILETIME_NANOTICKS_PER_SECOND - FILETIME_UNIX_DIFF;
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} /* lzma_filetime_to_unix_timestamp */
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/*
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 * Compare a file with a given name, C89 stdlib variant
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 * Used for sorting
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 */
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static int lzma_file_cmp_stdlib(const void *key, const void *object)
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{
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    const char *name = (const char *) key;
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    LZMAfile *file = (LZMAfile *) object;
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    return strcmp(name, file->item->Name);
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} /* lzma_file_cmp_posix */
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/*
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 * Compare two files with each other based on the name
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 * Used for sorting
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 */
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static int lzma_file_cmp(void *_a, size_t one, size_t two)
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{
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    LZMAfile *files = (LZMAfile *) _a;
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    return strcmp(files[one].item->Name, files[two].item->Name);
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} /* lzma_file_cmp */
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/*
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   188
 * Swap two entries in the file array
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   189
 */
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   190
static void lzma_file_swap(void *_a, size_t one, size_t two)
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{
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   192
    LZMAfile tmp;
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   193
    LZMAfile *first = &(((LZMAfile *) _a)[one]);
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   194
    LZMAfile *second = &(((LZMAfile *) _a)[two]);
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   195
    memcpy(&tmp, first, sizeof (LZMAfile));
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   196
    memcpy(first, second, sizeof (LZMAfile));
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   197
    memcpy(second, &tmp, sizeof (LZMAfile));
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   198
} /* lzma_file_swap */
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   199
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/*
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   202
 * Find entry 'name' in 'archive'
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 */
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static LZMAfile * lzma_find_file(const LZMAarchive *archive, const char *name)
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   205
{
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   206
    LZMAfile *file = bsearch(name, archive->files, archive->db.Database.NumFiles, sizeof(*archive->files), lzma_file_cmp_stdlib); /* FIXME: Should become __PHYSFS_search!!! */
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bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
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    BAIL_IF_MACRO(file == NULL, PHYSFS_ERR_NOT_FOUND, NULL);
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   209
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    return file;
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   211
} /* lzma_find_file */
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   212
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   213
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/*
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   215
 * Load metadata for the file at given index
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   216
 */
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static int lzma_file_init(LZMAarchive *archive, PHYSFS_uint32 fileIndex)
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{
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   219
    LZMAfile *file = &archive->files[fileIndex];
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   220
    PHYSFS_uint32 folderIndex = archive->db.FileIndexToFolderIndexMap[fileIndex];
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   221
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   222
    file->index = fileIndex; /* Store index into 7z array, since we sort our own. */
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   223
    file->archive = archive;
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   224
    file->folder = (folderIndex != (PHYSFS_uint32)-1 ? &archive->folders[folderIndex] : NULL); /* Directories don't have a folder (they contain no own data...) */
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   225
    file->item = &archive->db.Database.Files[fileIndex]; /* Holds crucial data and is often referenced -> Store link */
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   226
    file->position = 0;
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   227
    file->offset = 0; /* Offset will be set by LZMA_read() */
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   228
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   229
    return 1;
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   230
} /* lzma_load_file */
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   231
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diff changeset
   232
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   233
/*
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   234
 * Load metadata for all files
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   235
 */
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   236
static int lzma_files_init(LZMAarchive *archive)
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   237
{
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   238
    PHYSFS_uint32 fileIndex = 0, numFiles = archive->db.Database.NumFiles;
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   239
13e2037ebc79 Try using PhysicsFS.
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   240
    for (fileIndex = 0; fileIndex < numFiles; fileIndex++ )
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   241
    {
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   242
        if (!lzma_file_init(archive, fileIndex))
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   243
        {
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   244
            return 0; /* FALSE on failure */
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   245
        }
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   246
    } /* for */
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   247
13e2037ebc79 Try using PhysicsFS.
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   248
   __PHYSFS_sort(archive->files, (size_t) numFiles, lzma_file_cmp, lzma_file_swap);
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   249
13e2037ebc79 Try using PhysicsFS.
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   250
    return 1;
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   251
} /* lzma_load_files */
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   252
13e2037ebc79 Try using PhysicsFS.
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   253
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   254
/*
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   255
 * Initialise specified archive
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   256
 */
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   257
static void lzma_archive_init(LZMAarchive *archive)
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   258
{
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   259
    memset(archive, 0, sizeof(*archive));
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   260
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   261
    /* Prepare callbacks for 7z */
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   262
    archive->stream.inStream.Read = SzFileReadImp;
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parents:
diff changeset
   263
    archive->stream.inStream.Seek = SzFileSeekImp;
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   264
13e2037ebc79 Try using PhysicsFS.
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   265
    archive->stream.allocImp.Alloc = SzAllocPhysicsFS;
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   266
    archive->stream.allocImp.Free = SzFreePhysicsFS;
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diff changeset
   267
13e2037ebc79 Try using PhysicsFS.
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   268
    archive->stream.allocTempImp.Alloc = SzAllocPhysicsFS;
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diff changeset
   269
    archive->stream.allocTempImp.Free = SzFreePhysicsFS;
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   270
}
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   271
13e2037ebc79 Try using PhysicsFS.
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   272
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diff changeset
   273
/*
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   274
 * Deinitialise archive
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   275
 */
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   276
static void lzma_archive_exit(LZMAarchive *archive)
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   277
{
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   278
    /* Free arrays */
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diff changeset
   279
    allocator.Free(archive->folders);
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   280
    allocator.Free(archive->files);
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diff changeset
   281
    allocator.Free(archive);
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   282
}
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parents:
diff changeset
   283
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   284
/*
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   285
 * Wrap all 7z calls in this, so the physfs error state is set appropriately.
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   286
 */
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diff changeset
   287
static int lzma_err(SZ_RESULT rc)
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   288
{
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diff changeset
   289
    switch (rc)
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diff changeset
   290
    {
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diff changeset
   291
        case SZ_OK: /* Same as LZMA_RESULT_OK */
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parents:
diff changeset
   292
            break;
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diff changeset
   293
        case SZE_DATA_ERROR: /* Same as LZMA_RESULT_DATA_ERROR */
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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   294
            PHYSFS_setErrorCode(PHYSFS_ERR_CORRUPT); /*!!!FIXME: was "PHYSFS_ERR_DATA_ERROR" */
7768
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   295
            break;
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   296
        case SZE_OUTOFMEMORY:
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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diff changeset
   297
            PHYSFS_setErrorCode(PHYSFS_ERR_OUT_OF_MEMORY);
7768
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unc0rr
parents:
diff changeset
   298
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   299
        case SZE_CRC_ERROR:
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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   300
            PHYSFS_setErrorCode(PHYSFS_ERR_CORRUPT);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   301
            break;
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   302
        case SZE_NOTIMPL:
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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diff changeset
   303
            PHYSFS_setErrorCode(PHYSFS_ERR_UNSUPPORTED);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   304
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   305
        case SZE_FAIL:
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   306
            PHYSFS_setErrorCode(PHYSFS_ERR_OTHER_ERROR);  /* !!! FIXME: right? */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   307
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   308
        case SZE_ARCHIVE_ERROR:
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   309
            PHYSFS_setErrorCode(PHYSFS_ERR_CORRUPT);  /* !!! FIXME: right? */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   310
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   311
        default:
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   312
            PHYSFS_setErrorCode(PHYSFS_ERR_OTHER_ERROR);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   313
    } /* switch */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   314
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   315
    return rc;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   316
} /* lzma_err */
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   317
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   318
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   319
static PHYSFS_sint64 LZMA_read(PHYSFS_Io *io, void *outBuf, PHYSFS_uint64 len)
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unc0rr
parents:
diff changeset
   320
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   321
    LZMAfile *file = (LZMAfile *) io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   322
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   323
    size_t wantedSize = (size_t) len;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   324
    const size_t remainingSize = file->item->Size - file->position;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   325
    size_t fileSize = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   326
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   327
    BAIL_IF_MACRO(wantedSize == 0, ERRPASS, 0); /* quick rejection. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   328
    BAIL_IF_MACRO(remainingSize == 0, PHYSFS_ERR_PAST_EOF, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   329
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   330
    if (wantedSize > remainingSize)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   331
        wantedSize = remainingSize;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   332
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   333
    /* Only decompress the folder if it is not already cached */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   334
    if (file->folder->cache == NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   335
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   336
        const int rc = lzma_err(SzExtract(
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   337
            &file->archive->stream.inStream, /* compressed data */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   338
            &file->archive->db, /* 7z's database, containing everything */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   339
            file->index, /* Index into database arrays */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   340
            /* Index of cached folder, will be changed by SzExtract */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   341
            &file->folder->index,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   342
            /* Cache for decompressed folder, allocated/freed by SzExtract */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   343
            &file->folder->cache,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   344
            /* Size of cache, will be changed by SzExtract */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   345
            &file->folder->size,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   346
            /* Offset of this file inside the cache, set by SzExtract */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   347
            &file->offset,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   348
            &fileSize, /* Size of this file */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   349
            &file->archive->stream.allocImp,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   350
            &file->archive->stream.allocTempImp));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   351
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   352
        if (rc != SZ_OK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   353
            return -1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   354
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   355
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   356
    /* Copy wanted bytes over from cache to outBuf */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   357
    memcpy(outBuf, (file->folder->cache + file->offset + file->position),
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   358
            wantedSize);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   359
    file->position += wantedSize; /* Increase virtual position */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   360
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   361
    return wantedSize;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   362
} /* LZMA_read */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   363
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   364
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   365
static PHYSFS_sint64 LZMA_write(PHYSFS_Io *io, const void *b, PHYSFS_uint64 len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   366
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   367
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   368
} /* LZMA_write */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   369
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   370
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   371
static PHYSFS_sint64 LZMA_tell(PHYSFS_Io *io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   372
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   373
    LZMAfile *file = (LZMAfile *) io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   374
    return file->position;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   375
} /* LZMA_tell */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   376
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   377
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   378
static int LZMA_seek(PHYSFS_Io *io, PHYSFS_uint64 offset)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   379
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   380
    LZMAfile *file = (LZMAfile *) io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   381
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   382
    BAIL_IF_MACRO(offset > file->item->Size, PHYSFS_ERR_PAST_EOF, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   383
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   384
    file->position = offset; /* We only use a virtual position... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   385
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   386
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   387
} /* LZMA_seek */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   388
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   389
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   390
static PHYSFS_sint64 LZMA_length(PHYSFS_Io *io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   391
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   392
    const LZMAfile *file = (LZMAfile *) io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   393
    return (file->item->Size);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   394
} /* LZMA_length */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   395
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   396
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   397
static PHYSFS_Io *LZMA_duplicate(PHYSFS_Io *_io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   398
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   399
    /* !!! FIXME: this archiver needs to be reworked to allow multiple
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   400
     * !!! FIXME:  opens before we worry about duplication. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   401
    BAIL_MACRO(PHYSFS_ERR_UNSUPPORTED, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   402
} /* LZMA_duplicate */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   403
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   404
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   405
static int LZMA_flush(PHYSFS_Io *io) { return 1;  /* no write support. */ }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   406
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   407
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   408
static void LZMA_destroy(PHYSFS_Io *io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   409
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   410
    LZMAfile *file = (LZMAfile *) io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   411
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   412
    if (file->folder != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   413
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   414
        /* Only decrease refcount if someone actually requested this file... Prevents from overflows and close-on-open... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   415
        if (file->folder->references > 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   416
            file->folder->references--;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   417
        if (file->folder->references == 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   418
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   419
            /* Free the cache which might have been allocated by LZMA_read() */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   420
            allocator.Free(file->folder->cache);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   421
            file->folder->cache = NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   422
        }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   423
        /* !!! FIXME: we don't free (file) or (file->folder)?! */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   424
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   425
} /* LZMA_destroy */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   426
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   427
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   428
static const PHYSFS_Io LZMA_Io =
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   429
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   430
    CURRENT_PHYSFS_IO_API_VERSION, NULL,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   431
    LZMA_read,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   432
    LZMA_write,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   433
    LZMA_seek,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   434
    LZMA_tell,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   435
    LZMA_length,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   436
    LZMA_duplicate,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   437
    LZMA_flush,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   438
    LZMA_destroy
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   439
};
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   440
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   441
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   442
static void *LZMA_openArchive(PHYSFS_Io *io, const char *name, int forWriting)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   443
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   444
    PHYSFS_uint8 sig[k7zSignatureSize];
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   445
    size_t len = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   446
    LZMAarchive *archive = NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   447
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   448
    assert(io != NULL);  /* shouldn't ever happen. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   449
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   450
    BAIL_IF_MACRO(forWriting, PHYSFS_ERR_READ_ONLY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   451
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   452
    if (io->read(io, sig, k7zSignatureSize) != k7zSignatureSize)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   453
        return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   454
    BAIL_IF_MACRO(!TestSignatureCandidate(sig), PHYSFS_ERR_UNSUPPORTED, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   455
    BAIL_IF_MACRO(!io->seek(io, 0), ERRPASS, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   456
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   457
    archive = (LZMAarchive *) allocator.Malloc(sizeof (LZMAarchive));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   458
    BAIL_IF_MACRO(archive == NULL, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   459
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   460
    lzma_archive_init(archive);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   461
    archive->stream.io = io;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   462
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   463
    CrcGenerateTable();
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   464
    SzArDbExInit(&archive->db);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   465
    if (lzma_err(SzArchiveOpen(&archive->stream.inStream,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   466
                               &archive->db,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   467
                               &archive->stream.allocImp,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   468
                               &archive->stream.allocTempImp)) != SZ_OK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   469
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   470
        SzArDbExFree(&archive->db, SzFreePhysicsFS);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   471
        lzma_archive_exit(archive);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   472
        return NULL; /* Error is set by lzma_err! */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   473
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   474
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   475
    len = archive->db.Database.NumFiles * sizeof (LZMAfile);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   476
    archive->files = (LZMAfile *) allocator.Malloc(len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   477
    if (archive->files == NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   478
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   479
        SzArDbExFree(&archive->db, SzFreePhysicsFS);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   480
        lzma_archive_exit(archive);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   481
        BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   482
    }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   483
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   484
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   485
     * Init with 0 so we know when a folder is already cached
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   486
     * Values will be set by LZMA_openRead()
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   487
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   488
    memset(archive->files, 0, len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   489
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   490
    len = archive->db.Database.NumFolders * sizeof (LZMAfolder);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   491
    archive->folders = (LZMAfolder *) allocator.Malloc(len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   492
    if (archive->folders == NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   493
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   494
        SzArDbExFree(&archive->db, SzFreePhysicsFS);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   495
        lzma_archive_exit(archive);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   496
        BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   497
    }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   498
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   499
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   500
     * Init with 0 so we know when a folder is already cached
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   501
     * Values will be set by LZMA_read()
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   502
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   503
    memset(archive->folders, 0, len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   504
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   505
    if(!lzma_files_init(archive))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   506
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   507
        SzArDbExFree(&archive->db, SzFreePhysicsFS);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   508
        lzma_archive_exit(archive);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   509
        BAIL_MACRO(PHYSFS_ERR_OTHER_ERROR, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   510
    }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   511
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   512
    return archive;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   513
} /* LZMA_openArchive */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   514
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   515
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   516
/*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   517
 * Moved to seperate function so we can use alloca then immediately throw
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   518
 *  away the allocated stack space...
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   519
 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   520
static void doEnumCallback(PHYSFS_EnumFilesCallback cb, void *callbackdata,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   521
                           const char *odir, const char *str, size_t flen)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   522
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   523
    char *newstr = __PHYSFS_smallAlloc(flen + 1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   524
    if (newstr == NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   525
        return;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   526
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   527
    memcpy(newstr, str, flen);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   528
    newstr[flen] = '\0';
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   529
    cb(callbackdata, odir, newstr);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   530
    __PHYSFS_smallFree(newstr);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   531
} /* doEnumCallback */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   532
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   533
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   534
static void LZMA_enumerateFiles(void *opaque, const char *dname,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   535
                                PHYSFS_EnumFilesCallback cb,
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   536
                                const char *origdir, void *callbackdata)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   537
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   538
    size_t dlen = strlen(dname),
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   539
           dlen_inc = dlen + ((dlen > 0) ? 1 : 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   540
    LZMAarchive *archive = (LZMAarchive *) opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   541
    LZMAfile *file = NULL,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   542
            *lastFile = &archive->files[archive->db.Database.NumFiles];
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   543
        if (dlen)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   544
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   545
            file = lzma_find_file(archive, dname);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   546
            if (file != NULL) /* if 'file' is NULL it should stay so, otherwise errors will not be handled */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   547
                file += 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   548
        }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   549
        else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   550
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   551
            file = archive->files;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   552
        }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   553
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   554
    BAIL_IF_MACRO(file == NULL, PHYSFS_ERR_NOT_FOUND, );
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   555
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   556
    while (file < lastFile)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   557
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   558
        const char * fname = file->item->Name;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   559
        const char * dirNameEnd = fname + dlen_inc;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   560
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   561
        if (strncmp(dname, fname, dlen) != 0) /* Stop after mismatch, archive->files is sorted */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   562
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   563
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   564
        if (strchr(dirNameEnd, '/')) /* Skip subdirs */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   565
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   566
            file++;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   567
            continue;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   568
        }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   569
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   570
        /* Do the actual callback... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   571
        doEnumCallback(cb, callbackdata, origdir, dirNameEnd, strlen(dirNameEnd));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   572
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   573
        file++;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   574
    }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   575
} /* LZMA_enumerateFiles */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   576
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   577
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   578
static PHYSFS_Io *LZMA_openRead(void *opaque, const char *name)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   579
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   580
    LZMAarchive *archive = (LZMAarchive *) opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   581
    LZMAfile *file = lzma_find_file(archive, name);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   582
    PHYSFS_Io *io = NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   583
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   584
    BAIL_IF_MACRO(file == NULL, PHYSFS_ERR_NOT_FOUND, NULL);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   585
    BAIL_IF_MACRO(file->folder == NULL, PHYSFS_ERR_NOT_A_FILE, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   586
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   587
    file->position = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   588
    file->folder->references++; /* Increase refcount for automatic cleanup... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   589
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   590
    io = (PHYSFS_Io *) allocator.Malloc(sizeof (PHYSFS_Io));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   591
    BAIL_IF_MACRO(io == NULL, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   592
    memcpy(io, &LZMA_Io, sizeof (*io));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   593
    io->opaque = file;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   594
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   595
    return io;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   596
} /* LZMA_openRead */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   597
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   598
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   599
static PHYSFS_Io *LZMA_openWrite(void *opaque, const char *filename)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   600
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   601
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   602
} /* LZMA_openWrite */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   603
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   604
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   605
static PHYSFS_Io *LZMA_openAppend(void *opaque, const char *filename)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   606
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   607
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   608
} /* LZMA_openAppend */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   609
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   610
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   611
static void LZMA_closeArchive(void *opaque)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   612
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   613
    LZMAarchive *archive = (LZMAarchive *) opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   614
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   615
#if 0  /* !!! FIXME: you shouldn't have to do this. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   616
    PHYSFS_uint32 fileIndex = 0, numFiles = archive->db.Database.NumFiles;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   617
    for (fileIndex = 0; fileIndex < numFiles; fileIndex++)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   618
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   619
        LZMA_fileClose(&archive->files[fileIndex]);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   620
    } /* for */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   621
#endif
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   622
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   623
    SzArDbExFree(&archive->db, SzFreePhysicsFS);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   624
    archive->stream.io->destroy(archive->stream.io);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   625
    lzma_archive_exit(archive);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   626
} /* LZMA_closeArchive */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   627
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   628
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   629
static int LZMA_remove(void *opaque, const char *name)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   630
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   631
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   632
} /* LZMA_remove */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   633
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   634
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   635
static int LZMA_mkdir(void *opaque, const char *name)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   636
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   637
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   638
} /* LZMA_mkdir */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   639
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   640
static int LZMA_stat(void *opaque, const char *filename, PHYSFS_Stat *stat)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   641
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   642
    const LZMAarchive *archive = (const LZMAarchive *) opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   643
    const LZMAfile *file = lzma_find_file(archive, filename);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   644
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   645
    if (!file)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   646
        return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   647
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   648
    if(file->item->IsDirectory)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   649
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   650
        stat->filesize = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   651
        stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   652
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   653
    else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   654
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   655
        stat->filesize = (PHYSFS_sint64) file->item->Size;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   656
        stat->filetype = PHYSFS_FILETYPE_REGULAR;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   657
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   658
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   659
    /* !!! FIXME: the 0's should be -1's? */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   660
    if (file->item->IsLastWriteTimeDefined)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   661
        stat->modtime = lzma_filetime_to_unix_timestamp(&file->item->LastWriteTime);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   662
    else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   663
        stat->modtime = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   664
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   665
    /* real create and accesstype are currently not in the lzma SDK */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   666
    stat->createtime = stat->modtime;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   667
    stat->accesstime = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   668
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   669
    stat->readonly = 1;  /* 7zips are always read only */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   670
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   671
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   672
} /* LZMA_stat */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   673
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   674
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   675
const PHYSFS_Archiver __PHYSFS_Archiver_LZMA =
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   676
{
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   677
    CURRENT_PHYSFS_ARCHIVER_API_VERSION,
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   678
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   679
        "7Z",
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   680
        "LZMA (7zip) format",
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   681
        "Dennis Schridde <devurandom@gmx.net>",
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   682
        "https://icculus.org/physfs/",
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   683
        0,  /* supportsSymlinks */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   684
    },
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   685
    LZMA_openArchive,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   686
    LZMA_enumerateFiles,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   687
    LZMA_openRead,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   688
    LZMA_openWrite,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   689
    LZMA_openAppend,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   690
    LZMA_remove,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   691
    LZMA_mkdir,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   692
    LZMA_stat,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   693
    LZMA_closeArchive
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   694
};
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   695
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   696
#endif  /* defined PHYSFS_SUPPORTS_7Z */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   697
12213
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   698
/* end of archiver_lzma.c ... */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   699