archivers/zip.c
author Ryan C. Gordon <icculus@icculus.org>
Sat, 28 Jul 2001 13:08:14 +0000
changeset 55 986740ba58ab
parent 53 6c3c990f006e
child 61 2f2afcbd8abd
permissions -rw-r--r--
Avoids unzLocateFile(), since we already did all the searching ourselves.
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/*
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 * ZIP 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 Ryan C. Gordon.
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 */
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/*
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 * !!! FIXME: overall design bugs.
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 *
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 *  Make unz_file_info.version into two fields of unsigned char. That's what
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 *   they are in the zipfile; heavens knows why unzip.c casts it...this causes
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 *   a byte ordering headache for me in entry_is_symlink().
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 *
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 *  Maybe add a seekToStartOfCurrentFile() in unzip.c if complete seek
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 *   semantics are impossible.
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include "physfs.h"
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#include "unzip.h"
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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#if (!defined PHYSFS_SUPPORTS_ZIP)
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#error PHYSFS_SUPPORTS_ZIP must be defined.
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#endif
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#define MAXZIPENTRYSIZE 256
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typedef struct
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{
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    char *name;
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    unz_file_info info;
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    char *symlink;
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} ZIPentry;
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typedef struct
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{
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    char *archiveName;
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    unz_global_info global;
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    ZIPentry *entries;
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} ZIPinfo;
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typedef struct
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{
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    unzFile handle;
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} ZIPfileinfo;
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extern const DirFunctions __PHYSFS_DirFunctions_ZIP;
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static const FileFunctions __PHYSFS_FileFunctions_ZIP;
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/* Number of symlinks to follow before we assume it's a recursive link... */
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#define SYMLINK_RECURSE_COUNT 20
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static int ZIP_read(FileHandle *handle, void *buffer,
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                    unsigned int objSize, unsigned int objCount)
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{
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    unzFile fh = ((ZIPfileinfo *) (handle->opaque))->handle;
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    int bytes = objSize * objCount;
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    int rc = unzReadCurrentFile(fh, buffer, bytes);
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    if (rc < bytes)
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        __PHYSFS_setError(ERR_PAST_EOF);
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    else if (rc == UNZ_ERRNO)
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        __PHYSFS_setError(ERR_IO_ERROR);
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    else if (rc < 0)
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        __PHYSFS_setError(ERR_COMPRESSION);
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    return(rc / objSize);
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} /* ZIP_read */
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static int ZIP_eof(FileHandle *handle)
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{
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    return(unzeof(((ZIPfileinfo *) (handle->opaque))->handle));
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} /* ZIP_eof */
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static int ZIP_tell(FileHandle *handle)
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{
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    return(unztell(((ZIPfileinfo *) (handle->opaque))->handle));
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} /* ZIP_tell */
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static int ZIP_fileLength(FileHandle *handle);
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static int ZIP_seek(FileHandle *handle, int offset)
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{
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    /* this blows. */
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    unzFile fh = ((ZIPfileinfo *) (handle->opaque))->handle;
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    char *buf = NULL;
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    int bufsize = 4096 * 2;
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    BAIL_IF_MACRO(unztell(fh) == offset, NULL, 1);
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    BAIL_IF_MACRO(ZIP_fileLength(handle) <= offset, ERR_PAST_EOF, 0);
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        /* reset to the start of the zipfile. */
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    unzCloseCurrentFile(fh);
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    BAIL_IF_MACRO(unzOpenCurrentFile(fh) != UNZ_OK, ERR_IO_ERROR, 0);
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    while ((buf == NULL) && (bufsize >= 512))
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    {
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        bufsize >>= 1;  /* divides by two. */
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        buf = (char *) malloc(bufsize);
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    } /* while */
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    BAIL_IF_MACRO(buf == NULL, ERR_OUT_OF_MEMORY, 0);
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    while (offset > 0)
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    {
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        int chunk = (offset > bufsize) ? bufsize : offset;
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        int rc = unzReadCurrentFile(fh, buf, chunk);
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        BAIL_IF_MACRO(rc == 0, ERR_IO_ERROR, 0);  /* shouldn't happen. */
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        BAIL_IF_MACRO(rc == UNZ_ERRNO, ERR_IO_ERROR, 0);
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        BAIL_IF_MACRO(rc < 0, ERR_COMPRESSION, 0);
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        offset -= rc;
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    } /* while */
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    free(buf);
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    return(offset == 0);
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} /* ZIP_seek */
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static int ZIP_fileLength(FileHandle *handle)
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{
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    ZIPfileinfo *finfo = (ZIPfileinfo *) (handle->opaque);
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    unz_file_info info;
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    unzGetCurrentFileInfo(finfo->handle, &info, NULL, 0, NULL, 0, NULL, 0);
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    return(info.uncompressed_size);
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} /* ZIP_fileLength */
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   144
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static int ZIP_fileClose(FileHandle *handle)
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{
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    ZIPfileinfo *finfo = (ZIPfileinfo *) (handle->opaque);
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    unzClose(finfo->handle);
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    free(finfo);
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    free(handle);
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    return(1);
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} /* ZIP_fileClose */
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static int ZIP_isArchive(const char *filename, int forWriting)
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{
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    int retval = 0;
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    unzFile unz = unzOpen(filename);
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    unz_global_info global;
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    if (unz != NULL)
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    {
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        if (unzGetGlobalInfo(unz, &global) == UNZ_OK)
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            retval = 1;
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        unzClose(unz);
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    } /* if */
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   167
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    return(retval);
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} /* ZIP_isArchive */
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static void freeEntries(ZIPinfo *info, int count, const char *errmsg)
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{
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    int i;
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    for (i = 0; i < count; i++)
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    {
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        free(info->entries[i].name);
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        if (info->entries[i].symlink != NULL)
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            free(info->entries[i].symlink);
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    } /* for */
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   182
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    free(info->entries);
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   184
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    if (errmsg != NULL)
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        __PHYSFS_setError(errmsg);
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   187
} /* freeEntries */
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   188
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   189
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static char *ZIP_realpath(unzFile fh, unz_file_info *info)
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{
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    char *retval = NULL;
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    int size;
32
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   194
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    BAIL_IF_MACRO(unzOpenCurrentFile(fh) != UNZ_OK, ERR_IO_ERROR, NULL);
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    size = info->uncompressed_size;
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    retval = (char *) malloc(size + 1);
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    BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
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    if (unzReadCurrentFile(fh, retval, size) != size)
32
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    {
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        free(retval);
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        __PHYSFS_setError(ERR_IO_ERROR);
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        retval = NULL;
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    } /* if */
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    retval[size] = '\0';
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    unzCloseCurrentFile(fh);
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   207
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    return(retval);
53
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   209
} /* ZIP_realpath */
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   210
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   211
46
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/* "uLong" is defined by zlib and/or unzip.h ... */
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typedef union
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{
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    unsigned char uchar4[4];
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    uLong ul;
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} uchar4_uLong;
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   218
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   219
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static int version_does_symlinks(uLong version)
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{
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   222
    int retval = 0;
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   223
    unsigned char hosttype;
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   224
    uchar4_uLong converter;
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   225
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   226
    converter.ul = version;
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   227
    hosttype = converter.uchar4[1]; /* !!! BYTE ORDERING ALERT! */
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   228
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   229
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   230
    /*
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   231
     * These are the platforms that can build an archive with symlinks,
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   232
     *  according to the Info-ZIP project.
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   233
     */
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   234
    switch (hosttype)
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   235
    {
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   236
        case 3:   /* Unix  */
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   237
        case 16:  /* BeOS  */
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   238
        case 5:   /* Atari */
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   239
            retval = 1;
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   240
            break;
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   241
    } /* switch */
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   242
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   243
    return(retval);
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   244
} /* version_does_symlinks */
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   245
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   246
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   247
static int entry_is_symlink(unz_file_info *info)
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   248
{
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   249
    return (
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   250
              (version_does_symlinks(info->version)) &&
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   251
              (info->uncompressed_size > 0) &&
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   252
              (info->external_fa & 0x0120000)  /* symlink flag. */
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   253
           );
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   254
} /* entry_is_symlink */
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   255
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   256
53
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static int loadZipEntries(ZIPinfo *info, unzFile unz)
46
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   258
{
53
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   259
    int i, max;
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   260
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   261
    BAIL_IF_MACRO(unzGetGlobalInfo(unz, &(info->global)) != UNZ_OK,
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   262
                    ERR_IO_ERROR, 0);
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   263
    BAIL_IF_MACRO(unzGoToFirstFile(unz) != UNZ_OK, ERR_IO_ERROR, 0);
46
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   264
53
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   265
    max = info->global.number_entry;
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   266
    info->entries = (ZIPentry *) malloc(sizeof (ZIPentry) * max);
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   267
    BAIL_IF_MACRO(info->entries == NULL, ERR_OUT_OF_MEMORY, 0);
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   268
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   269
    for (i = 0; i < max; i++)
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    {
53
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   271
        unz_file_info *d = &((info->entries[i]).info);
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        if (unzGetCurrentFileInfo(unz, d, NULL, 0, NULL, 0, NULL, 0) != UNZ_OK)
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   273
        {
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            freeEntries(info, i, ERR_IO_ERROR);
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   275
            return(0);
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   276
        } /* if */
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   277
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   278
        (info->entries[i]).name = (char *) malloc(d->size_filename + 1);
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   279
        if ((info->entries[i]).name == NULL)
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   280
        {
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            freeEntries(info, i, ERR_OUT_OF_MEMORY);
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   282
            return(0);
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   283
        } /* if */
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   284
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   285
        info->entries[i].symlink = NULL;
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   286
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   287
        if (unzGetCurrentFileInfo(unz, NULL, (info->entries[i]).name,
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                                  d->size_filename + 1, NULL, 0,
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   289
                                  NULL, 0) != UNZ_OK)
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   290
        {
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   291
            freeEntries(info, i + 1, ERR_IO_ERROR);
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   292
            return(0);
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   293
        } /* if */
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   294
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   295
        if (entry_is_symlink(d))
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   296
        {
53
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   297
            info->entries[i].symlink = ZIP_realpath(unz, d);
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   298
            if (info->entries[i].symlink == NULL)
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   299
            {
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   300
                freeEntries(info, i + 1, NULL);
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   301
                return(0);
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   302
            } /* if */
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   303
        } /* if */
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   304
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   305
        if ((unzGoToNextFile(unz) != UNZ_OK) && (i + 1 < max))
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diff changeset
   306
        {
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   307
            freeEntries(info, i + 1, ERR_IO_ERROR);
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   308
            return(0);
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diff changeset
   309
        } /* if */
53
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diff changeset
   310
    } /* for */
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   311
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   312
    return(1);
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   313
} /* loadZipEntries */
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   314
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   315
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   316
static DirHandle *ZIP_openArchive(const char *name, int forWriting)
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   317
{
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   318
    unzFile unz = NULL;
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   319
    DirHandle *retval = NULL;
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   320
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diff changeset
   321
    BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, NULL);
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diff changeset
   322
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diff changeset
   323
    retval = malloc(sizeof (DirHandle));
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diff changeset
   324
    BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
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diff changeset
   325
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diff changeset
   326
    unz = unzOpen(name);
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   327
    if (unz == NULL)
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diff changeset
   328
    {
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diff changeset
   329
        free(retval);
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diff changeset
   330
        BAIL_IF_MACRO(1, ERR_UNSUPPORTED_ARCHIVE, NULL);
46
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diff changeset
   331
    } /* if */
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   332
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
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diff changeset
   333
    retval->opaque = malloc(sizeof (ZIPinfo));
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diff changeset
   334
    if (retval->opaque == NULL)
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diff changeset
   335
    {
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diff changeset
   336
        free(retval);
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diff changeset
   337
        unzClose(unz);
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diff changeset
   338
        BAIL_IF_MACRO(1, ERR_OUT_OF_MEMORY, NULL);
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diff changeset
   339
    } /* if */
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diff changeset
   340
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diff changeset
   341
    ((ZIPinfo *) (retval->opaque))->archiveName = malloc(strlen(name) + 1);
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diff changeset
   342
    if ( (((ZIPinfo *) (retval->opaque))->archiveName == NULL) ||
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diff changeset
   343
         (!loadZipEntries( (ZIPinfo *) (retval->opaque), unz)) )
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diff changeset
   344
    {
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diff changeset
   345
        if (((ZIPinfo *) (retval->opaque))->archiveName != NULL)
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diff changeset
   346
            free(((ZIPinfo *) (retval->opaque))->archiveName);
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diff changeset
   347
        free(retval->opaque);
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diff changeset
   348
        free(retval);
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diff changeset
   349
        unzClose(unz);
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diff changeset
   350
        BAIL_IF_MACRO(1, ERR_OUT_OF_MEMORY, NULL);
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diff changeset
   351
    } /* if */
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diff changeset
   352
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diff changeset
   353
    unzClose(unz);
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diff changeset
   354
    strcpy(((ZIPinfo *) (retval->opaque))->archiveName, name);
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diff changeset
   355
    retval->funcs = &__PHYSFS_DirFunctions_ZIP;
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diff changeset
   356
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diff changeset
   357
    return(retval);
53
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diff changeset
   358
} /* ZIP_openArchive */
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diff changeset
   359
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diff changeset
   360
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diff changeset
   361
/* !!! This is seriously ugly. */
41
ff60d39d0862 Architecture adjustment for enumerating files with regards to whether
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diff changeset
   362
static LinkedStringList *ZIP_enumerateFiles(DirHandle *h,
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diff changeset
   363
                                            const char *dirname,
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diff changeset
   364
                                            int omitSymLinks)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
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diff changeset
   365
{
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
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diff changeset
   366
    ZIPinfo *zi = (ZIPinfo *) (h->opaque);
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diff changeset
   367
    int i;
46
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diff changeset
   368
    int dlen;
32
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diff changeset
   369
    LinkedStringList *retval = NULL;
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diff changeset
   370
    LinkedStringList *l = NULL;
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diff changeset
   371
    LinkedStringList *prev = NULL;
53
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diff changeset
   372
    char *d;
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diff changeset
   373
    ZIPentry *entry;
46
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   374
    char buf[MAXZIPENTRYSIZE];
32
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diff changeset
   375
46
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diff changeset
   376
    dlen = strlen(dirname);
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diff changeset
   377
    d = malloc(dlen + 1);
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diff changeset
   378
    BAIL_IF_MACRO(d == NULL, ERR_OUT_OF_MEMORY, NULL);
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
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diff changeset
   379
    strcpy(d, dirname);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
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diff changeset
   380
    if ((dlen > 0) && (d[dlen - 1] == '/'))   /* no trailing slash. */
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diff changeset
   381
    {
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diff changeset
   382
        dlen--;
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diff changeset
   383
        d[dlen] = '\0';
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diff changeset
   384
    } /* if */
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
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parents: 29
diff changeset
   385
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
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diff changeset
   386
    for (i = 0, entry = zi->entries; i < zi->global.number_entry; i++, entry++)
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
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parents: 29
diff changeset
   387
    {
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
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diff changeset
   388
        char *ptr;
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
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diff changeset
   389
        char *add_file;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   390
        int this_dlen;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   391
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   392
        if ((omitSymLinks) && (entry->symlink != NULL))
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   393
            continue;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   394
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   395
        this_dlen = strlen(entry->name);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   396
        if (this_dlen + 1 > MAXZIPENTRYSIZE)
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   397
            continue;  /* ugh. */
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   398
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   399
        strcpy(buf, entry->name);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   400
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   401
        if ((this_dlen > 0) && (buf[this_dlen - 1] == '/'))   /* no trailing slash. */
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   402
        {
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   403
            this_dlen--;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   404
            buf[this_dlen] = '\0';
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   405
        } /* if */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   406
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   407
        if (this_dlen <= dlen)  /* not in this dir. */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   408
            continue;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   409
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   410
        if (*d == '\0')
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   411
            add_file = buf;
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   412
        else
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   413
        {
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   414
            if (buf[dlen] != '/') /* can't be in same directory? */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   415
                continue;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   416
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   417
            buf[dlen] = '\0';
52
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   418
            if (__PHYSFS_platformStricmp(d, buf) != 0)   /* not same directory? */
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   419
                continue;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   420
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   421
            add_file = buf + dlen + 1;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   422
        } /* else */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   423
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   424
        /* handle subdirectories... */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   425
        ptr = strchr(add_file, '/');
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   426
        if (ptr != NULL)
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   427
        {
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   428
            LinkedStringList *j;
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   429
            *ptr = '\0';
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   430
            for (j = retval; j != NULL; j = j->next)
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   431
            {
52
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   432
                if (__PHYSFS_platformStricmp(j->str, ptr) == 0)
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   433
                    break;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   434
            } /* for */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   435
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   436
            if (j != NULL)
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   437
                continue;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   438
        } /* if */
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   439
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   440
        l = (LinkedStringList *) malloc(sizeof (LinkedStringList));
39
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 37
diff changeset
   441
        if (l == NULL)
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   442
            break;
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   443
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   444
        l->str = (char *) malloc(strlen(add_file) + 1);
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   445
        if (l->str == NULL)
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   446
        {
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   447
            free(l);
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   448
            break;
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   449
        } /* if */
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   450
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   451
        strcpy(l->str, add_file);
39
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 37
diff changeset
   452
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   453
        if (retval == NULL)
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   454
            retval = l;
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   455
        else
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   456
            prev->next = l;
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   457
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   458
        prev = l;
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   459
        l->next = NULL;
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   460
    } /* for */
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   461
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   462
    free(d);
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   463
    return(retval);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   464
} /* ZIP_enumerateFiles */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   465
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   466
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   467
/* !!! This is seriously ugly. */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   468
static int ZIP_exists_symcheck(DirHandle *h, const char *name, int follow)
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   469
{
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   470
    char buf[MAXZIPENTRYSIZE];
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   471
    ZIPinfo *zi = (ZIPinfo *) (h->opaque);
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   472
    int dlen;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   473
    char *d;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   474
    int i;
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   475
    ZIPentry *entry;
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   476
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   477
    dlen = strlen(name);
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   478
    d = malloc(dlen + 1);
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   479
    BAIL_IF_MACRO(d == NULL, ERR_OUT_OF_MEMORY, -1);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   480
    strcpy(d, name);
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   481
    if ((dlen > 0) && (d[dlen - 1] == '/'))   /* no trailing slash. */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   482
    {
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   483
        dlen--;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   484
        d[dlen] = '\0';
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   485
    } /* if */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   486
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   487
    for (i = 0, entry = zi->entries; i < zi->global.number_entry; i++, entry++)
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   488
    {
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   489
        int this_dlen = strlen(entry->name);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   490
        if (this_dlen + 1 > MAXZIPENTRYSIZE)
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   491
            continue;  /* ugh. */
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   492
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   493
        strcpy(buf, entry->name);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   494
        if ((this_dlen > 0) && (buf[this_dlen - 1] == '/'))   /* no trailing slash. */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   495
        {
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   496
            this_dlen--;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   497
            buf[this_dlen] = '\0';
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   498
        } /* if */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   499
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   500
        if ( ((buf[dlen] == '/') || (buf[dlen] == '\0')) &&
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   501
             (strncmp(d, buf, dlen) == 0) )
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   502
        {
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   503
            int retval = i;
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   504
            free(d);
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   505
            if (follow)  /* follow symlinks? */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   506
            {
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   507
                if (entry->symlink != NULL)
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   508
                    retval = ZIP_exists_symcheck(h, entry->symlink, follow-1);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   509
            } /* if */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   510
            return(retval);
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   511
        } /* if */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   512
    } /* for */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   513
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   514
    free(d);
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   515
    return(-1);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   516
} /* ZIP_exists_symcheck */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   517
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   518
21
b1ea58d70a56 Archive implementation (Build Groupfiles), other tweaks.
Ryan C. Gordon <icculus@icculus.org>
parents: 20
diff changeset
   519
static int ZIP_exists(DirHandle *h, const char *name)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   520
{
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   521
    int retval = ZIP_exists_symcheck(h, name, SYMLINK_RECURSE_COUNT);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   522
    int is_sym;
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   523
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   524
    if (retval == -1)
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   525
        return(0);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   526
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   527
    /* if it's a symlink, then we ran into a possible symlink loop. */
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   528
    is_sym = ( ((ZIPinfo *)(h->opaque))->entries[retval].symlink != NULL );
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   529
    BAIL_IF_MACRO(is_sym, ERR_TOO_MANY_SYMLINKS, 0);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   530
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   531
    return(1);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   532
} /* ZIP_exists */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   533
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   534
21
b1ea58d70a56 Archive implementation (Build Groupfiles), other tweaks.
Ryan C. Gordon <icculus@icculus.org>
parents: 20
diff changeset
   535
static int ZIP_isDirectory(DirHandle *h, const char *name)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   536
{
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   537
    int dlen;
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   538
    int is_sym;
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   539
    int retval = ZIP_exists_symcheck(h, name, SYMLINK_RECURSE_COUNT);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   540
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   541
    if (retval == -1)
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   542
        return(0);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   543
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   544
    /* if it's a symlink, then we ran into a possible symlink loop. */
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   545
    is_sym = ( ((ZIPinfo *)(h->opaque))->entries[retval].symlink != NULL );
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   546
    BAIL_IF_MACRO(is_sym, ERR_TOO_MANY_SYMLINKS, 0);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   547
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   548
    dlen = strlen(name);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   549
    /* !!! yikes. Better way to check? */
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   550
    retval = (((ZIPinfo *)(h->opaque))->entries[retval].name[dlen] == '/');
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   551
    return(retval);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   552
} /* ZIP_isDirectory */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   553
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   554
21
b1ea58d70a56 Archive implementation (Build Groupfiles), other tweaks.
Ryan C. Gordon <icculus@icculus.org>
parents: 20
diff changeset
   555
static int ZIP_isSymLink(DirHandle *h, const char *name)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   556
{
55
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   557
    int retval = ZIP_exists_symcheck(h, name, 0);
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   558
    if (retval == -1)
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   559
        return(0);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   560
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   561
    retval = ( ((ZIPinfo *)(h->opaque))->entries[retval].symlink != NULL );
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   562
    return(retval);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   563
} /* ZIP_isSymLink */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   564
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   565
21
b1ea58d70a56 Archive implementation (Build Groupfiles), other tweaks.
Ryan C. Gordon <icculus@icculus.org>
parents: 20
diff changeset
   566
static FileHandle *ZIP_openRead(DirHandle *h, const char *filename)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   567
{
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   568
    FileHandle *retval = NULL;
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   569
    ZIPinfo *zi = ((ZIPinfo *) (h->opaque));
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   570
    ZIPfileinfo *finfo = NULL;
55
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   571
    int pos = ZIP_exists_symcheck(h, filename, SYMLINK_RECURSE_COUNT);
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   572
    unzFile f;
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   573
55
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   574
    BAIL_IF_MACRO(pos == -1, ERR_NO_SUCH_FILE, NULL);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   575
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   576
    f = unzOpen(zi->archiveName);
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   577
    BAIL_IF_MACRO(f == NULL, ERR_IO_ERROR, NULL);
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   578
55
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   579
    if (unzGoToFirstFile(f) != UNZ_OK)
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   580
    {
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   581
        unzClose(f);
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   582
        BAIL_IF_MACRO(1, ERR_IO_ERROR, NULL);
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   583
    } /* if */
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   584
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   585
    for (; pos > 0; pos--)
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   586
    {
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   587
        if (unzGoToNextFile(f) != UNZ_OK)
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   588
        {
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   589
            unzClose(f);
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   590
            BAIL_IF_MACRO(1, ERR_IO_ERROR, NULL);
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   591
        } /* if */
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   592
    } /* for */
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   593
986740ba58ab Avoids unzLocateFile(), since we already did all the searching ourselves.
Ryan C. Gordon <icculus@icculus.org>
parents: 53
diff changeset
   594
    if ( (unzOpenCurrentFile(f) != UNZ_OK) ||
52
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   595
         ( (finfo = (ZIPfileinfo *) malloc(sizeof (ZIPfileinfo))) == NULL ) )
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   596
    {
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   597
        unzClose(f);
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   598
        BAIL_IF_MACRO(1, ERR_IO_ERROR, NULL);
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   599
    } /* if */
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   600
52
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   601
    if ( (!(retval = (FileHandle *) malloc(sizeof (FileHandle)))) ||
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   602
         (!(retval->opaque = (ZIPfileinfo *) malloc(sizeof (ZIPfileinfo)))) )
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   603
    {
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   604
        if (retval)
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   605
            free(retval);
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   606
        unzClose(f);
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   607
        BAIL_IF_MACRO(1, ERR_OUT_OF_MEMORY, NULL);
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   608
    } /* if */
bbb26eacc532 Enough fixes to get the Build engine working with ZIP files instead of
Ryan C. Gordon <icculus@icculus.org>
parents: 50
diff changeset
   609
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   610
    finfo->handle = f;
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   611
    retval->opaque = (void *) finfo;
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   612
    retval->funcs = &__PHYSFS_FileFunctions_ZIP;
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   613
    retval->dirHandle = h;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   614
    return(retval);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   615
} /* ZIP_openRead */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   616
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   617
21
b1ea58d70a56 Archive implementation (Build Groupfiles), other tweaks.
Ryan C. Gordon <icculus@icculus.org>
parents: 20
diff changeset
   618
static void ZIP_dirClose(DirHandle *h)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   619
{
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   620
    ZIPinfo *zi = (ZIPinfo *) (h->opaque);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   621
    freeEntries(zi, zi->global.number_entry, NULL);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   622
    free(zi->archiveName);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   623
    free(zi);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   624
    free(h);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   625
} /* ZIP_dirClose */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   626
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   627
21
b1ea58d70a56 Archive implementation (Build Groupfiles), other tweaks.
Ryan C. Gordon <icculus@icculus.org>
parents: 20
diff changeset
   628
static const FileFunctions __PHYSFS_FileFunctions_ZIP =
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   629
{
28
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   630
    ZIP_read,       /* read() method       */
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   631
    NULL,           /* write() method      */
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   632
    ZIP_eof,        /* eof() method        */
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   633
    ZIP_tell,       /* tell() method       */
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   634
    ZIP_seek,       /* seek() method       */
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   635
    ZIP_fileLength, /* fileLength() method */
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   636
    ZIP_fileClose   /* fileClose() method  */
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   637
};
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   638
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   639
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   640
const DirFunctions __PHYSFS_DirFunctions_ZIP =
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   641
{
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   642
    ZIP_isArchive,          /* isArchive() method      */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   643
    ZIP_openArchive,        /* openArchive() method    */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   644
    ZIP_enumerateFiles,     /* enumerateFiles() method */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   645
    ZIP_exists,             /* exists() method         */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   646
    ZIP_isDirectory,        /* isDirectory() method    */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   647
    ZIP_isSymLink,          /* isSymLink() method      */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   648
    ZIP_openRead,           /* openRead() method       */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   649
    NULL,                   /* openWrite() method      */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   650
    NULL,                   /* openAppend() method     */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   651
    NULL,                   /* remove() method         */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   652
    NULL,                   /* mkdir() method          */
22
49f6101707b4 More tweaks; GRP completely implemented. Everything builds clean.
Ryan C. Gordon <icculus@icculus.org>
parents: 21
diff changeset
   653
    ZIP_dirClose            /* dirClose() method       */
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   654
};
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   655
22
49f6101707b4 More tweaks; GRP completely implemented. Everything builds clean.
Ryan C. Gordon <icculus@icculus.org>
parents: 21
diff changeset
   656
const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_ZIP =
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   657
{
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   658
    "ZIP",
29
91b45664ec85 Added more fields to the ArchiveInfo struct: author and url.
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   659
    "PkZip/WinZip/Info-Zip compatible",
37
768c8484b0cd Updated archiver info to format I think is best for text.
Ryan C. Gordon <icculus@icculus.org>
parents: 32
diff changeset
   660
    "Ryan C. Gordon (icculus@linuxgames.com)",
768c8484b0cd Updated archiver info to format I think is best for text.
Ryan C. Gordon <icculus@icculus.org>
parents: 32
diff changeset
   661
    "http://www.icculus.org/~icculus/",
17
7337737f5120 Moved from root source dir.
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parents:
diff changeset
   662
};
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   663
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   664
/* end of zip.c ... */
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   665