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Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).

This commit is contained in:
Ryan C. Gordon 2003-03-30 18:59:54 +00:00
parent 433d7f0f44
commit 3a27dd9310
10 changed files with 1176 additions and 0 deletions
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2
Makefile.am.newautomake
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@ -48,6 +48,8 @@ libphysfs_la_SOURCES = \
physfs_byteorder.c \
archivers/dir.c \
archivers/grp.c \
archivers/hog.c \
archivers/mvl.c \
archivers/zip.c \
archivers/qpak.c \
platform/unix.c \

2
acconfig.h
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@ -4,6 +4,8 @@
#undef NDEBUG
#undef PHYSFS_SUPPORTS_ZIP
#undef PHYSFS_SUPPORTS_GRP
#undef PHYSFS_SUPPORTS_HOG
#undef PHYSFS_SUPPORTS_MVL
#undef PHYSFS_HAVE_READLINE
#undef PHYSFS_HAVE_LLSEEK

2
archivers/.cvsignore
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@ -5,6 +5,8 @@ unzip.lo
dir.lo
Makefile.in
grp.lo
hog.lo
mvl.lo
zip.lo
libarchivers.la
qpak.lo

2
archivers/Makefile.am
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@ -9,6 +9,8 @@ endif
libarchivers_la_SOURCES = \
dir.c \
grp.c \
hog.c \
mvl.c \
zip.c \
qpak.c

574
archivers/hog.c Normal file
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@ -0,0 +1,574 @@
/*
* HOG support routines for PhysicsFS.
*
* This driver handles Descent I/II HOG archives.
*
* The format is very simple:
*
* The file always starts with the 3-byte signature "DHF" (Descent
* HOG file). After that the files of a HOG are just attached after
* another, divided by a 17 bytes header, which specifies the name
* and length (in bytes) of the forthcoming file! So you just read
* the header with its information of how big the following file is,
* and then skip exact that number of bytes to get to the next file
* in that HOG.
*
* char sig[3] = {'D', 'H', 'F'}; // "DHF"=Descent HOG File
*
* struct {
* char file_name[13]; // Filename, padded to 13 bytes with 0s
* int file_size; // filesize in bytes
* char data[file_size]; // The file data
* } FILE_STRUCT; // Repeated until the end of the file.
*
* (That info is from http://www.descent2.com/ddn/specs/hog/)
*
* Please see the file LICENSE in the source's root directory.
*
* This file written by Bradley Bell.
* Based on grp.c by Ryan C. Gordon.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if (defined PHYSFS_SUPPORTS_HOG)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "physfs.h"
#define __PHYSICSFS_INTERNAL__
#include "physfs_internal.h"
/*
* One HOGentry is kept for each file in an open HOG archive.
*/
typedef struct
{
char name[13];
PHYSFS_uint32 startPos;
PHYSFS_uint32 size;
} HOGentry;
/*
* One HOGinfo is kept for each open HOG archive.
*/
typedef struct
{
char *filename;
PHYSFS_sint64 last_mod_time;
PHYSFS_uint32 entryCount;
HOGentry *entries;
} HOGinfo;
/*
* One HOGfileinfo is kept for each open file in a HOG archive.
*/
typedef struct
{
void *handle;
HOGentry *entry;
PHYSFS_uint32 curPos;
} HOGfileinfo;
static void HOG_dirClose(DirHandle *h);
static PHYSFS_sint64 HOG_read(FileHandle *handle, void *buffer,
PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
static PHYSFS_sint64 HOG_write(FileHandle *handle, const void *buffer,
PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
static int HOG_eof(FileHandle *handle);
static PHYSFS_sint64 HOG_tell(FileHandle *handle);
static int HOG_seek(FileHandle *handle, PHYSFS_uint64 offset);
static PHYSFS_sint64 HOG_fileLength(FileHandle *handle);
static int HOG_fileClose(FileHandle *handle);
static int HOG_isArchive(const char *filename, int forWriting);
static DirHandle *HOG_openArchive(const char *name, int forWriting);
static LinkedStringList *HOG_enumerateFiles(DirHandle *h,
const char *dirname,
int omitSymLinks);
static int HOG_exists(DirHandle *h, const char *name);
static int HOG_isDirectory(DirHandle *h, const char *name, int *fileExists);
static int HOG_isSymLink(DirHandle *h, const char *name, int *fileExists);
static PHYSFS_sint64 HOG_getLastModTime(DirHandle *h, const char *n, int *e);
static FileHandle *HOG_openRead(DirHandle *h, const char *name, int *exist);
static FileHandle *HOG_openWrite(DirHandle *h, const char *name);
static FileHandle *HOG_openAppend(DirHandle *h, const char *name);
static int HOG_remove(DirHandle *h, const char *name);
static int HOG_mkdir(DirHandle *h, const char *name);
const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_HOG =
{
"HOG",
HOG_ARCHIVE_DESCRIPTION,
"Bradley Bell <btb@icculus.org>",
"http://icculus.org/physfs/",
};
static const FileFunctions __PHYSFS_FileFunctions_HOG =
{
HOG_read, /* read() method */
HOG_write, /* write() method */
HOG_eof, /* eof() method */
HOG_tell, /* tell() method */
HOG_seek, /* seek() method */
HOG_fileLength, /* fileLength() method */
HOG_fileClose /* fileClose() method */
};
const DirFunctions __PHYSFS_DirFunctions_HOG =
{
&__PHYSFS_ArchiveInfo_HOG,
HOG_isArchive, /* isArchive() method */
HOG_openArchive, /* openArchive() method */
HOG_enumerateFiles, /* enumerateFiles() method */
HOG_exists, /* exists() method */
HOG_isDirectory, /* isDirectory() method */
HOG_isSymLink, /* isSymLink() method */
HOG_getLastModTime, /* getLastModTime() method */
HOG_openRead, /* openRead() method */
HOG_openWrite, /* openWrite() method */
HOG_openAppend, /* openAppend() method */
HOG_remove, /* remove() method */
HOG_mkdir, /* mkdir() method */
HOG_dirClose /* dirClose() method */
};
static void HOG_dirClose(DirHandle *h)
{
HOGinfo *info = ((HOGinfo *) h->opaque);
free(info->filename);
free(info->entries);
free(info);
free(h);
} /* HOG_dirClose */
static PHYSFS_sint64 HOG_read(FileHandle *handle, void *buffer,
PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
{
HOGfileinfo *finfo = (HOGfileinfo *) (handle->opaque);
HOGentry *entry = finfo->entry;
PHYSFS_uint32 bytesLeft = entry->size - finfo->curPos;
PHYSFS_uint32 objsLeft = (bytesLeft / objSize);
PHYSFS_sint64 rc;
if (objsLeft < objCount)
objCount = objsLeft;
rc = __PHYSFS_platformRead(finfo->handle, buffer, objSize, objCount);
if (rc > 0)
finfo->curPos += (PHYSFS_uint32) (rc * objSize);
return(rc);
} /* HOG_read */
static PHYSFS_sint64 HOG_write(FileHandle *handle, const void *buffer,
PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
} /* HOG_write */
static int HOG_eof(FileHandle *handle)
{
HOGfileinfo *finfo = (HOGfileinfo *) (handle->opaque);
HOGentry *entry = finfo->entry;
return(finfo->curPos >= entry->size);
} /* HOG_eof */
static PHYSFS_sint64 HOG_tell(FileHandle *handle)
{
return(((HOGfileinfo *) (handle->opaque))->curPos);
} /* HOG_tell */
static int HOG_seek(FileHandle *handle, PHYSFS_uint64 offset)
{
HOGfileinfo *finfo = (HOGfileinfo *) (handle->opaque);
HOGentry *entry = finfo->entry;
int rc;
BAIL_IF_MACRO(offset < 0, ERR_INVALID_ARGUMENT, 0);
BAIL_IF_MACRO(offset >= entry->size, ERR_PAST_EOF, 0);
rc = __PHYSFS_platformSeek(finfo->handle, entry->startPos + offset);
if (rc)
finfo->curPos = (PHYSFS_uint32) offset;
return(rc);
} /* HOG_seek */
static PHYSFS_sint64 HOG_fileLength(FileHandle *handle)
{
HOGfileinfo *finfo = ((HOGfileinfo *) handle->opaque);
return((PHYSFS_sint64) finfo->entry->size);
} /* HOG_fileLength */
static int HOG_fileClose(FileHandle *handle)
{
HOGfileinfo *finfo = ((HOGfileinfo *) handle->opaque);
BAIL_IF_MACRO(!__PHYSFS_platformClose(finfo->handle), NULL, 0);
free(finfo);
free(handle);
return(1);
} /* HOG_fileClose */
static int hog_open(const char *filename, int forWriting,
void **fh, PHYSFS_uint32 *count)
{
PHYSFS_uint8 buf[13];
PHYSFS_uint32 size;
PHYSFS_sint64 pos;
*count = 0;
*fh = NULL;
BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, 0);
*fh = __PHYSFS_platformOpenRead(filename);
BAIL_IF_MACRO(*fh == NULL, NULL, 0);
if (__PHYSFS_platformRead(*fh, buf, 3, 1) != 1)
goto openHog_failed;
if (memcmp(buf, "DHF", 3) != 0)
{
__PHYSFS_setError(ERR_UNSUPPORTED_ARCHIVE);
goto openHog_failed;
} /* if */
while( 1 )
{
if (__PHYSFS_platformRead(*fh, buf, 13, 1) != 1)
break; //eof here is ok
if (__PHYSFS_platformRead(*fh, &size, 4, 1) != 1)
goto openHog_failed;
size = PHYSFS_swapULE32(size);
(*count)++;
// Skip over entry
pos = __PHYSFS_platformTell(*fh);
if (pos == -1)
goto openHog_failed;
if (!__PHYSFS_platformSeek(*fh, pos + size))
goto openHog_failed;
}
// Rewind to start of entries
if (!__PHYSFS_platformSeek(*fh, 3))
goto openHog_failed;
return(1);
openHog_failed:
if (*fh != NULL)
__PHYSFS_platformClose(*fh);
*count = -1;
*fh = NULL;
return(0);
} /* hog_open */
static int HOG_isArchive(const char *filename, int forWriting)
{
void *fh;
PHYSFS_uint32 fileCount;
int retval = hog_open(filename, forWriting, &fh, &fileCount);
if (fh != NULL)
__PHYSFS_platformClose(fh);
return(retval);
} /* HOG_isArchive */
static int hog_entry_cmp(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
{
HOGentry *a = (HOGentry *) _a;
return(strcmp(a[one].name, a[two].name));
} /* hog_entry_cmp */
static void hog_entry_swap(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
{
HOGentry tmp;
HOGentry *first = &(((HOGentry *) _a)[one]);
HOGentry *second = &(((HOGentry *) _a)[two]);
memcpy(&tmp, first, sizeof (HOGentry));
memcpy(first, second, sizeof (HOGentry));
memcpy(second, &tmp, sizeof (HOGentry));
} /* hog_entry_swap */
static int hog_load_entries(const char *name, int forWriting, HOGinfo *info)
{
void *fh = NULL;
PHYSFS_uint32 fileCount;
HOGentry *entry;
char *ptr;
BAIL_IF_MACRO(!hog_open(name, forWriting, &fh, &fileCount), NULL, 0);
info->entryCount = fileCount;
info->entries = (HOGentry *) malloc(sizeof (HOGentry) * fileCount);
if (info->entries == NULL)
{
__PHYSFS_platformClose(fh);
BAIL_MACRO(ERR_OUT_OF_MEMORY, 0);
} /* if */
for (entry = info->entries; fileCount > 0; fileCount--, entry++)
{
if (__PHYSFS_platformRead(fh, &entry->name, 13, 1) != 1)
{
__PHYSFS_platformClose(fh);
return(0);
} /* if */
if (__PHYSFS_platformRead(fh, &entry->size, 4, 1) != 1)
{
__PHYSFS_platformClose(fh);
return(0);
} /* if */
entry->size = PHYSFS_swapULE32(entry->size);
entry->startPos = __PHYSFS_platformTell(fh);
if (entry->startPos == -1)
{
__PHYSFS_platformClose(fh);
return(0);
}
// Skip over entry
if (!__PHYSFS_platformSeek(fh, entry->startPos + entry->size))
{
__PHYSFS_platformClose(fh);
return(0);
}
} /* for */
__PHYSFS_platformClose(fh);
__PHYSFS_sort(info->entries, info->entryCount,
hog_entry_cmp, hog_entry_swap);
return(1);
} /* hog_load_entries */
static DirHandle *HOG_openArchive(const char *name, int forWriting)
{
HOGinfo *info;
DirHandle *retval = malloc(sizeof (DirHandle));
PHYSFS_sint64 modtime = __PHYSFS_platformGetLastModTime(name);
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
info = retval->opaque = malloc(sizeof (HOGinfo));
if (info == NULL)
{
__PHYSFS_setError(ERR_OUT_OF_MEMORY);
goto HOG_openArchive_failed;
} /* if */
memset(info, '\0', sizeof (HOGinfo));
info->filename = (char *) malloc(strlen(name) + 1);
if (info->filename == NULL)
{
__PHYSFS_setError(ERR_OUT_OF_MEMORY);
goto HOG_openArchive_failed;
} /* if */
if (!hog_load_entries(name, forWriting, info))
goto HOG_openArchive_failed;
strcpy(info->filename, name);
info->last_mod_time = modtime;
retval->funcs = &__PHYSFS_DirFunctions_HOG;
return(retval);
HOG_openArchive_failed:
if (retval != NULL)
{
if (retval->opaque != NULL)
{
if (info->filename != NULL)
free(info->filename);
if (info->entries != NULL)
free(info->entries);
free(info);
} /* if */
free(retval);
} /* if */
return(NULL);
} /* HOG_openArchive */
static LinkedStringList *HOG_enumerateFiles(DirHandle *h,
const char *dirname,
int omitSymLinks)
{
HOGinfo *info = ((HOGinfo *) h->opaque);
HOGentry *entry = info->entries;
LinkedStringList *retval = NULL, *p = NULL;
PHYSFS_uint32 max = info->entryCount;
PHYSFS_uint32 i;
/* no directories in HOG files. */
BAIL_IF_MACRO(*dirname != '\0', ERR_NOT_A_DIR, NULL);
for (i = 0; i < max; i++, entry++)
retval = __PHYSFS_addToLinkedStringList(retval, &p, entry->name, -1);
return(retval);
} /* HOG_enumerateFiles */
static HOGentry *hog_find_entry(HOGinfo *info, const char *name)
{
char *ptr = strchr(name, '.');
HOGentry *a = info->entries;
PHYSFS_sint32 lo = 0;
PHYSFS_sint32 hi = (PHYSFS_sint32) (info->entryCount - 1);
PHYSFS_sint32 middle;
int rc;
/*
* Rule out filenames to avoid unneeded processing...no dirs,
* big filenames, or extensions > 3 chars.
*/
BAIL_IF_MACRO((ptr) && (strlen(ptr) > 4), ERR_NO_SUCH_FILE, NULL);
BAIL_IF_MACRO(strlen(name) > 12, ERR_NO_SUCH_FILE, NULL);
BAIL_IF_MACRO(strchr(name, '/') != NULL, ERR_NO_SUCH_FILE, NULL);
while (lo <= hi)
{
middle = lo + ((hi - lo) / 2);
rc = __PHYSFS_platformStricmp(name, a[middle].name);
if (rc == 0) /* found it! */
return(&a[middle]);
else if (rc > 0)
lo = middle + 1;
else
hi = middle - 1;
} /* while */
BAIL_MACRO(ERR_NO_SUCH_FILE, NULL);
} /* hog_find_entry */
static int HOG_exists(DirHandle *h, const char *name)
{
return(hog_find_entry(((HOGinfo *) h->opaque), name) != NULL);
} /* HOG_exists */
static int HOG_isDirectory(DirHandle *h, const char *name, int *fileExists)
{
*fileExists = HOG_exists(h, name);
return(0); /* never directories in a groupfile. */
} /* HOG_isDirectory */
static int HOG_isSymLink(DirHandle *h, const char *name, int *fileExists)
{
*fileExists = HOG_exists(h, name);
return(0); /* never symlinks in a groupfile. */
} /* HOG_isSymLink */
static PHYSFS_sint64 HOG_getLastModTime(DirHandle *h,
const char *name,
int *fileExists)
{
HOGinfo *info = ((HOGinfo *) h->opaque);
PHYSFS_sint64 retval = -1;
*fileExists = (hog_find_entry(info, name) != NULL);
if (*fileExists) /* use time of HOG itself in the physical filesystem. */
retval = ((HOGinfo *) h->opaque)->last_mod_time;
return(retval);
} /* HOG_getLastModTime */
static FileHandle *HOG_openRead(DirHandle *h, const char *fnm, int *fileExists)
{
HOGinfo *info = ((HOGinfo *) h->opaque);
FileHandle *retval;
HOGfileinfo *finfo;
HOGentry *entry;
entry = hog_find_entry(info, fnm);
*fileExists = (entry != NULL);
BAIL_IF_MACRO(entry == NULL, NULL, NULL);
retval = (FileHandle *) malloc(sizeof (FileHandle));
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
finfo = (HOGfileinfo *) malloc(sizeof (HOGfileinfo));
if (finfo == NULL)
{
free(retval);
BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
} /* if */
finfo->handle = __PHYSFS_platformOpenRead(info->filename);
if ( (finfo->handle == NULL) ||
(!__PHYSFS_platformSeek(finfo->handle, entry->startPos)) )
{
free(finfo);
free(retval);
return(NULL);
} /* if */
finfo->curPos = 0;
finfo->entry = entry;
retval->opaque = (void *) finfo;
retval->funcs = &__PHYSFS_FileFunctions_HOG;
retval->dirHandle = h;
return(retval);
} /* HOG_openRead */
static FileHandle *HOG_openWrite(DirHandle *h, const char *name)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
} /* HOG_openWrite */
static FileHandle *HOG_openAppend(DirHandle *h, const char *name)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
} /* HOG_openAppend */
static int HOG_remove(DirHandle *h, const char *name)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
} /* HOG_remove */
static int HOG_mkdir(DirHandle *h, const char *name)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
} /* HOG_mkdir */
#endif /* defined PHYSFS_SUPPORTS_HOG */
/* end of hog.c ... */

532
archivers/mvl.c Normal file
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@ -0,0 +1,532 @@
/*
* MVL support routines for PhysicsFS.
*
* This driver handles Descent II Movielib archives.
*
* The file format of MVL is quite easy...
*
* //MVL File format - Written by Heiko Herrmann
* char sig[4] = {'D','M', 'V', 'L'}; // "DMVL"=Descent MoVie Library
*
* int num_files; // the number of files in this MVL
*
* struct {
* char file_name[13]; // Filename, padded to 13 bytes with 0s
* int file_size; // filesize in bytes
* }DIR_STRUCT[num_files];
*
* struct {
* char data[file_size]; // The file data
* }FILE_STRUCT[num_files];
*
* (That info is from http://www.descent2.com/ddn/specs/mvl/)
*
* Please see the file LICENSE in the source's root directory.
*
* This file written by Bradley Bell.
* Based on grp.c by Ryan C. Gordon.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if (defined PHYSFS_SUPPORTS_MVL)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "physfs.h"
#define __PHYSICSFS_INTERNAL__
#include "physfs_internal.h"
typedef struct
{
char name[13];
PHYSFS_uint32 startPos;
PHYSFS_uint32 size;
} MVLentry;
typedef struct
{
char *filename;
PHYSFS_sint64 last_mod_time;
PHYSFS_uint32 entryCount;
MVLentry *entries;
} MVLinfo;
typedef struct
{
void *handle;
MVLentry *entry;
PHYSFS_uint32 curPos;
} MVLfileinfo;
static void MVL_dirClose(DirHandle *h);
static PHYSFS_sint64 MVL_read(FileHandle *handle, void *buffer,
PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
static PHYSFS_sint64 MVL_write(FileHandle *handle, const void *buffer,
PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
static int MVL_eof(FileHandle *handle);
static PHYSFS_sint64 MVL_tell(FileHandle *handle);
static int MVL_seek(FileHandle *handle, PHYSFS_uint64 offset);
static PHYSFS_sint64 MVL_fileLength(FileHandle *handle);
static int MVL_fileClose(FileHandle *handle);
static int MVL_isArchive(const char *filename, int forWriting);
static DirHandle *MVL_openArchive(const char *name, int forWriting);
static LinkedStringList *MVL_enumerateFiles(DirHandle *h,
const char *dirname,
int omitSymLinks);
static int MVL_exists(DirHandle *h, const char *name);
static int MVL_isDirectory(DirHandle *h, const char *name, int *fileExists);
static int MVL_isSymLink(DirHandle *h, const char *name, int *fileExists);
static PHYSFS_sint64 MVL_getLastModTime(DirHandle *h, const char *n, int *e);
static FileHandle *MVL_openRead(DirHandle *h, const char *name, int *exist);
static FileHandle *MVL_openWrite(DirHandle *h, const char *name);
static FileHandle *MVL_openAppend(DirHandle *h, const char *name);
static int MVL_remove(DirHandle *h, const char *name);
static int MVL_mkdir(DirHandle *h, const char *name);
const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_MVL =
{
"MVL",
MVL_ARCHIVE_DESCRIPTION,
"Bradley Bell <btb@icculus.org>",
"http://icculus.org/physfs/",
};
static const FileFunctions __PHYSFS_FileFunctions_MVL =
{
MVL_read, /* read() method */
MVL_write, /* write() method */
MVL_eof, /* eof() method */
MVL_tell, /* tell() method */
MVL_seek, /* seek() method */
MVL_fileLength, /* fileLength() method */
MVL_fileClose /* fileClose() method */
};
const DirFunctions __PHYSFS_DirFunctions_MVL =
{
&__PHYSFS_ArchiveInfo_MVL,
MVL_isArchive, /* isArchive() method */
MVL_openArchive, /* openArchive() method */
MVL_enumerateFiles, /* enumerateFiles() method */
MVL_exists, /* exists() method */
MVL_isDirectory, /* isDirectory() method */
MVL_isSymLink, /* isSymLink() method */
MVL_getLastModTime, /* getLastModTime() method */
MVL_openRead, /* openRead() method */
MVL_openWrite, /* openWrite() method */
MVL_openAppend, /* openAppend() method */
MVL_remove, /* remove() method */
MVL_mkdir, /* mkdir() method */
MVL_dirClose /* dirClose() method */
};
static void MVL_dirClose(DirHandle *h)
{
MVLinfo *info = ((MVLinfo *) h->opaque);
free(info->filename);
free(info->entries);
free(info);
free(h);
} /* MVL_dirClose */
static PHYSFS_sint64 MVL_read(FileHandle *handle, void *buffer,
PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
{
MVLfileinfo *finfo = (MVLfileinfo *) (handle->opaque);
MVLentry *entry = finfo->entry;
PHYSFS_uint32 bytesLeft = entry->size - finfo->curPos;
PHYSFS_uint32 objsLeft = (bytesLeft / objSize);
PHYSFS_sint64 rc;
if (objsLeft < objCount)
objCount = objsLeft;
rc = __PHYSFS_platformRead(finfo->handle, buffer, objSize, objCount);
if (rc > 0)
finfo->curPos += (PHYSFS_uint32) (rc * objSize);
return(rc);
} /* MVL_read */
static PHYSFS_sint64 MVL_write(FileHandle *handle, const void *buffer,
PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
} /* MVL_write */
static int MVL_eof(FileHandle *handle)
{
MVLfileinfo *finfo = (MVLfileinfo *) (handle->opaque);
MVLentry *entry = finfo->entry;
return(finfo->curPos >= entry->size);
} /* MVL_eof */
static PHYSFS_sint64 MVL_tell(FileHandle *handle)
{
return(((MVLfileinfo *) (handle->opaque))->curPos);
} /* MVL_tell */
static int MVL_seek(FileHandle *handle, PHYSFS_uint64 offset)
{
MVLfileinfo *finfo = (MVLfileinfo *) (handle->opaque);
MVLentry *entry = finfo->entry;
int rc;
BAIL_IF_MACRO(offset < 0, ERR_INVALID_ARGUMENT, 0);
BAIL_IF_MACRO(offset >= entry->size, ERR_PAST_EOF, 0);
rc = __PHYSFS_platformSeek(finfo->handle, entry->startPos + offset);
if (rc)
finfo->curPos = (PHYSFS_uint32) offset;
return(rc);
} /* MVL_seek */
static PHYSFS_sint64 MVL_fileLength(FileHandle *handle)
{
MVLfileinfo *finfo = ((MVLfileinfo *) handle->opaque);
return((PHYSFS_sint64) finfo->entry->size);
} /* MVL_fileLength */
static int MVL_fileClose(FileHandle *handle)
{
MVLfileinfo *finfo = ((MVLfileinfo *) handle->opaque);
BAIL_IF_MACRO(!__PHYSFS_platformClose(finfo->handle), NULL, 0);
free(finfo);
free(handle);
return(1);
} /* MVL_fileClose */
static int mvl_open(const char *filename, int forWriting,
void **fh, PHYSFS_uint32 *count)
{
PHYSFS_uint8 buf[4];
*fh = NULL;
BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, 0);
*fh = __PHYSFS_platformOpenRead(filename);
BAIL_IF_MACRO(*fh == NULL, NULL, 0);
if (__PHYSFS_platformRead(*fh, buf, 4, 1) != 1)
goto openMvl_failed;
if (memcmp(buf, "DMVL", 4) != 0)
{
__PHYSFS_setError(ERR_UNSUPPORTED_ARCHIVE);
goto openMvl_failed;
} /* if */
if (__PHYSFS_platformRead(*fh, count, sizeof (PHYSFS_uint32), 1) != 1)
goto openMvl_failed;
*count = PHYSFS_swapULE32(*count);
return(1);
openMvl_failed:
if (*fh != NULL)
__PHYSFS_platformClose(*fh);
*count = -1;
*fh = NULL;
return(0);
} /* mvl_open */
static int MVL_isArchive(const char *filename, int forWriting)
{
void *fh;
PHYSFS_uint32 fileCount;
int retval = mvl_open(filename, forWriting, &fh, &fileCount);
if (fh != NULL)
__PHYSFS_platformClose(fh);
return(retval);
} /* MVL_isArchive */
static int mvl_entry_cmp(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
{
MVLentry *a = (MVLentry *) _a;
return(strcmp(a[one].name, a[two].name));
} /* mvl_entry_cmp */
static void mvl_entry_swap(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
{
MVLentry tmp;
MVLentry *first = &(((MVLentry *) _a)[one]);
MVLentry *second = &(((MVLentry *) _a)[two]);
memcpy(&tmp, first, sizeof (MVLentry));
memcpy(first, second, sizeof (MVLentry));
memcpy(second, &tmp, sizeof (MVLentry));
} /* mvl_entry_swap */
static int mvl_load_entries(const char *name, int forWriting, MVLinfo *info)
{
void *fh = NULL;
PHYSFS_uint32 fileCount;
PHYSFS_uint32 location = 8; /* sizeof sig. */
MVLentry *entry;
char *ptr;
BAIL_IF_MACRO(!mvl_open(name, forWriting, &fh, &fileCount), NULL, 0);
info->entryCount = fileCount;
info->entries = (MVLentry *) malloc(sizeof (MVLentry) * fileCount);
if (info->entries == NULL)
{
__PHYSFS_platformClose(fh);
BAIL_MACRO(ERR_OUT_OF_MEMORY, 0);
} /* if */
location += (17 * fileCount);
for (entry = info->entries; fileCount > 0; fileCount--, entry++)
{
if (__PHYSFS_platformRead(fh, &entry->name, 13, 1) != 1)
{
__PHYSFS_platformClose(fh);
return(0);
} /* if */
if (__PHYSFS_platformRead(fh, &entry->size, 4, 1) != 1)
{
__PHYSFS_platformClose(fh);
return(0);
} /* if */
entry->size = PHYSFS_swapULE32(entry->size);
entry->startPos = location;
location += entry->size;
} /* for */
__PHYSFS_platformClose(fh);
__PHYSFS_sort(info->entries, info->entryCount,
mvl_entry_cmp, mvl_entry_swap);
return(1);
} /* mvl_load_entries */
static DirHandle *MVL_openArchive(const char *name, int forWriting)
{
MVLinfo *info;
DirHandle *retval = malloc(sizeof (DirHandle));
PHYSFS_sint64 modtime = __PHYSFS_platformGetLastModTime(name);
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
info = retval->opaque = malloc(sizeof (MVLinfo));
if (info == NULL)
{
__PHYSFS_setError(ERR_OUT_OF_MEMORY);
goto MVL_openArchive_failed;
} /* if */
memset(info, '\0', sizeof (MVLinfo));
info->filename = (char *) malloc(strlen(name) + 1);
if (info->filename == NULL)
{
__PHYSFS_setError(ERR_OUT_OF_MEMORY);
goto MVL_openArchive_failed;
} /* if */
if (!mvl_load_entries(name, forWriting, info))
goto MVL_openArchive_failed;
strcpy(info->filename, name);
info->last_mod_time = modtime;
retval->funcs = &__PHYSFS_DirFunctions_MVL;
return(retval);
MVL_openArchive_failed:
if (retval != NULL)
{
if (retval->opaque != NULL)
{
if (info->filename != NULL)
free(info->filename);
if (info->entries != NULL)
free(info->entries);
free(info);
} /* if */
free(retval);
} /* if */
return(NULL);
} /* MVL_openArchive */
static LinkedStringList *MVL_enumerateFiles(DirHandle *h,
const char *dirname,
int omitSymLinks)
{
MVLinfo *info = ((MVLinfo *) h->opaque);
MVLentry *entry = info->entries;
LinkedStringList *retval = NULL, *p = NULL;
PHYSFS_uint32 max = info->entryCount;
PHYSFS_uint32 i;
/* no directories in MVL files. */
BAIL_IF_MACRO(*dirname != '\0', ERR_NOT_A_DIR, NULL);
for (i = 0; i < max; i++, entry++)
retval = __PHYSFS_addToLinkedStringList(retval, &p, entry->name, -1);
return(retval);
} /* MVL_enumerateFiles */
static MVLentry *mvl_find_entry(MVLinfo *info, const char *name)
{
char *ptr = strchr(name, '.');
MVLentry *a = info->entries;
PHYSFS_sint32 lo = 0;
PHYSFS_sint32 hi = (PHYSFS_sint32) (info->entryCount - 1);
PHYSFS_sint32 middle;
int rc;
/*
* Rule out filenames to avoid unneeded processing...no dirs,
* big filenames, or extensions > 3 chars.
*/
BAIL_IF_MACRO((ptr) && (strlen(ptr) > 4), ERR_NO_SUCH_FILE, NULL);
BAIL_IF_MACRO(strlen(name) > 12, ERR_NO_SUCH_FILE, NULL);
BAIL_IF_MACRO(strchr(name, '/') != NULL, ERR_NO_SUCH_FILE, NULL);
while (lo <= hi)
{
middle = lo + ((hi - lo) / 2);
rc = __PHYSFS_platformStricmp(name, a[middle].name);
if (rc == 0) /* found it! */
return(&a[middle]);
else if (rc > 0)
lo = middle + 1;
else
hi = middle - 1;
} /* while */
BAIL_MACRO(ERR_NO_SUCH_FILE, NULL);
} /* mvl_find_entry */
static int MVL_exists(DirHandle *h, const char *name)
{
return(mvl_find_entry(((MVLinfo *) h->opaque), name) != NULL);
} /* MVL_exists */
static int MVL_isDirectory(DirHandle *h, const char *name, int *fileExists)
{
*fileExists = MVL_exists(h, name);
return(0); /* never directories in a groupfile. */
} /* MVL_isDirectory */
static int MVL_isSymLink(DirHandle *h, const char *name, int *fileExists)
{
*fileExists = MVL_exists(h, name);
return(0); /* never symlinks in a groupfile. */
} /* MVL_isSymLink */
static PHYSFS_sint64 MVL_getLastModTime(DirHandle *h,
const char *name,
int *fileExists)
{
MVLinfo *info = ((MVLinfo *) h->opaque);
PHYSFS_sint64 retval = -1;
*fileExists = (mvl_find_entry(info, name) != NULL);
if (*fileExists) /* use time of MVL itself in the physical filesystem. */
retval = ((MVLinfo *) h->opaque)->last_mod_time;
return(retval);
} /* MVL_getLastModTime */
static FileHandle *MVL_openRead(DirHandle *h, const char *fnm, int *fileExists)
{
MVLinfo *info = ((MVLinfo *) h->opaque);
FileHandle *retval;
MVLfileinfo *finfo;
MVLentry *entry;
entry = mvl_find_entry(info, fnm);
*fileExists = (entry != NULL);
BAIL_IF_MACRO(entry == NULL, NULL, NULL);
retval = (FileHandle *) malloc(sizeof (FileHandle));
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
finfo = (MVLfileinfo *) malloc(sizeof (MVLfileinfo));
if (finfo == NULL)
{
free(retval);
BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
} /* if */
finfo->handle = __PHYSFS_platformOpenRead(info->filename);
if ( (finfo->handle == NULL) ||
(!__PHYSFS_platformSeek(finfo->handle, entry->startPos)) )
{
free(finfo);
free(retval);
return(NULL);
} /* if */
finfo->curPos = 0;
finfo->entry = entry;
retval->opaque = (void *) finfo;
retval->funcs = &__PHYSFS_FileFunctions_MVL;
retval->dirHandle = h;
return(retval);
} /* MVL_openRead */
static FileHandle *MVL_openWrite(DirHandle *h, const char *name)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
} /* MVL_openWrite */
static FileHandle *MVL_openAppend(DirHandle *h, const char *name)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
} /* MVL_openAppend */
static int MVL_remove(DirHandle *h, const char *name)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
} /* MVL_remove */
static int MVL_mkdir(DirHandle *h, const char *name)
{
BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
} /* MVL_mkdir */
#endif /* defined PHYSFS_SUPPORTS_MVL */
/* end of mvl.c ... */

18
configure.in
View File

@ -128,6 +128,24 @@ if test x$enable_grp = xyes; then
fi
dnl Check for hog archiver inclusion...
AC_ARG_ENABLE(hog,
[ --enable-hog enable Descent I/II HOG support [default=yes]],
, enable_hog=yes)
if test x$enable_hog = xyes; then
AC_DEFINE([PHYSFS_SUPPORTS_HOG], 1, [define if hog support is enabled])
fi
dnl Check for mvl archiver inclusion...
AC_ARG_ENABLE(mvl,
[ --enable-mvl enable Descent II MVL support [default=yes]],
, enable_mvl=yes)
if test x$enable_mvl = xyes; then
AC_DEFINE([PHYSFS_SUPPORTS_MVL], 1, [define if mvl support is enabled])
fi
dnl Check for qpak archiver inclusion...
AC_ARG_ENABLE(qpak,
[ --enable-qpak enable Quake PAK support [default=yes]],

26
physfs.c
View File

@ -59,6 +59,16 @@ extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_GRP;
extern const DirFunctions __PHYSFS_DirFunctions_GRP;
#endif
#if (defined PHYSFS_SUPPORTS_HOG)
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_HOG;
extern const DirFunctions __PHYSFS_DirFunctions_HOG;
#endif
#if (defined PHYSFS_SUPPORTS_MVL)
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_MVL;
extern const DirFunctions __PHYSFS_DirFunctions_MVL;
#endif
#if (defined PHYSFS_SUPPORTS_QPAK)
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_QPAK;
extern const DirFunctions __PHYSFS_DirFunctions_QPAK;
@ -77,6 +87,14 @@ static const PHYSFS_ArchiveInfo *supported_types[] =
&__PHYSFS_ArchiveInfo_GRP,
#endif
#if (defined PHYSFS_SUPPORTS_HOG)
&__PHYSFS_ArchiveInfo_HOG,
#endif
#if (defined PHYSFS_SUPPORTS_MVL)
&__PHYSFS_ArchiveInfo_MVL,
#endif
#if (defined PHYSFS_SUPPORTS_QPAK)
&__PHYSFS_ArchiveInfo_QPAK,
#endif
@ -94,6 +112,14 @@ static const DirFunctions *dirFunctions[] =
&__PHYSFS_DirFunctions_GRP,
#endif
#if (defined PHYSFS_SUPPORTS_HOG)
&__PHYSFS_DirFunctions_HOG,
#endif
#if (defined PHYSFS_SUPPORTS_MVL)
&__PHYSFS_DirFunctions_MVL,
#endif
#if (defined PHYSFS_SUPPORTS_QPAK)
&__PHYSFS_DirFunctions_QPAK,
#endif

2
physfs.h
View File

@ -128,6 +128,8 @@
* Currently supported archive types:
* - .ZIP (pkZip/WinZip/Info-ZIP compatible)
* - .GRP (Build Engine groupfile archives)
* - .HOG (Descent I/II HOG file archives)
* - .MVL (Descent II movielib archives)
*
* Please see the file LICENSE in the source's root directory for licensing
* and redistribution rights.

16
physfs_internal.h
View File

@ -46,6 +46,8 @@ extern "C" {
#if (PHYSFS_LANG == PHYSFS_LANG_ENGLISH)
#define DIR_ARCHIVE_DESCRIPTION "Non-archive, direct filesystem I/O"
#define GRP_ARCHIVE_DESCRIPTION "Build engine Groupfile format"
#define HOG_ARCHIVE_DESCRIPTION "Descent I/II HOG file format"
#define MVL_ARCHIVE_DESCRIPTION "Descent II Movielib format"
#define ZIP_ARCHIVE_DESCRIPTION "PkZip/WinZip/Info-Zip compatible"
#define ERR_IS_INITIALIZED "Already initialized"
@ -140,6 +142,8 @@ extern "C" {
#elif (PHYSFS_LANG == PHYSFS_LANG_GERMAN)
#define DIR_ARCHIVE_DESCRIPTION "Kein Archiv, direkte Ein/Ausgabe in das Dateisystem"
#define GRP_ARCHIVE_DESCRIPTION "Build engine Groupfile Format"
#define HOG_ARCHIVE_DESCRIPTION "Descent I/II HOG file format"
#define MVL_ARCHIVE_DESCRIPTION "Descent II Movielib format"
#define ZIP_ARCHIVE_DESCRIPTION "PkZip/WinZip/Info-Zip kompatibel"
#define ERR_IS_INITIALIZED "Bereits initialisiert"
@ -234,6 +238,8 @@ extern "C" {
#elif (PHYSFS_LANG == PHYSFS_LANG_RUSSIAN_KOI8_R)
#define DIR_ARCHIVE_DESCRIPTION "îÅ ÁÒÈÉ×, ÎÅÐÏÓÒÅÄÓÔ×ÅÎÎÙÊ ××ÏÄ/×Ù×ÏÄ ÆÁÊÌÏ×ÏÊ ÓÉÓÔÅÍÙ"
#define GRP_ARCHIVE_DESCRIPTION "æÏÒÍÁÔ ÇÒÕÐÐÏ×ÏÇÏ ÆÁÊÌÁ Build engine"
#define HOG_ARCHIVE_DESCRIPTION "Descent I/II HOG file format"
#define MVL_ARCHIVE_DESCRIPTION "Descent II Movielib format"
#define ZIP_ARCHIVE_DESCRIPTION "PkZip/WinZip/Info-Zip ÓÏ×ÍÅÓÔÉÍÙÊ"
#define ERR_IS_INITIALIZED "õÖÅ ÉÎÉÃÉÁÌÉÚÉÒÏ×ÁÎ"
@ -328,6 +334,8 @@ extern "C" {
#elif (PHYSFS_LANG == PHYSFS_LANG_RUSSIAN_CP1251)
#define DIR_ARCHIVE_DESCRIPTION "Íå àðõèâ, íåïîñðåäñòâåííûé ââîä/âûâîä ôàéëîâîé ñèñòåìû"
#define GRP_ARCHIVE_DESCRIPTION "Ôîðìàò ãðóïïîâîãî ôàéëà Build engine"
#define HOG_ARCHIVE_DESCRIPTION "Descent I/II HOG file format"
#define MVL_ARCHIVE_DESCRIPTION "Descent II Movielib format"
#define ZIP_ARCHIVE_DESCRIPTION "PkZip/WinZip/Info-Zip ñîâìåñòèìûé"
#define ERR_IS_INITIALIZED "Óæå èíèöèàëèçèðîâàí"
@ -422,6 +430,8 @@ extern "C" {
#elif (PHYSFS_LANG == PHYSFS_LANG_RUSSIAN_CP866)
#define DIR_ARCHIVE_DESCRIPTION "<22>¥  à娢, ­¥¯®á।á⢥­­ë© ¢¢®¤/¢ë¢®¤ ä ©«®¢®© á¨á⥬ë"
#define GRP_ARCHIVE_DESCRIPTION "”®à¬ â £à㯯®¢®£® ä ©«  Build engine"
#define HOG_ARCHIVE_DESCRIPTION "Descent I/II HOG file format"
#define MVL_ARCHIVE_DESCRIPTION "Descent II Movielib format"
#define ZIP_ARCHIVE_DESCRIPTION "PkZip/WinZip/Info-Zip ᮢ¬¥á⨬ë©"
#define ERR_IS_INITIALIZED "“¦¥ ¨­¨æ¨ «¨§¨à®¢ ­"
@ -516,6 +526,8 @@ extern "C" {
#elif (PHYSFS_LANG == PHYSFS_LANG_RUSSIAN_ISO_8859_5)
#define DIR_ARCHIVE_DESCRIPTION "½Õ ÐàåØÒ, ÝÕßÞáàÕÔáâÒÕÝÝëÙ ÒÒÞÔ/ÒëÒÞÔ äÐÙÛÞÒÞÙ áØáâÕÜë"
#define GRP_ARCHIVE_DESCRIPTION "ÄÞàÜÐâ ÓàãßßÞÒÞÓÞ äÐÙÛÐ Build engine"
#define HOG_ARCHIVE_DESCRIPTION "Descent I/II HOG file format"
#define MVL_ARCHIVE_DESCRIPTION "Descent II Movielib format"
#define ZIP_ARCHIVE_DESCRIPTION "PkZip/WinZip/Info-Zip áÞÒÜÕáâØÜëÙ"
#define ERR_IS_INITIALIZED "ÃÖÕ ØÝØæØÐÛØ×ØàÞÒÐÝ"
@ -610,6 +622,8 @@ extern "C" {
#elif (PHYSFS_LANG == PHYSFS_LANG_SPANISH)
#define DIR_ARCHIVE_DESCRIPTION "No es un archivo, E/S directa al sistema de ficheros"
#define GRP_ARCHIVE_DESCRIPTION "Formato Build engine Groupfile"
#define HOG_ARCHIVE_DESCRIPTION "Descent I/II HOG file format"
#define MVL_ARCHIVE_DESCRIPTION "Descent II Movielib format"
#define ZIP_ARCHIVE_DESCRIPTION "Compatible con PkZip/WinZip/Info-Zip"
#define ERR_IS_INITIALIZED "Ya estaba inicializado"
@ -704,6 +718,8 @@ extern "C" {
#elif (PHYSFS_LANG == PHYSFS_LANG_FRENCH)
#define DIR_ARCHIVE_DESCRIPTION "Pas d'archive, E/S directes sur système de fichiers"
#define GRP_ARCHIVE_DESCRIPTION "Format Groupfile du moteur Build"
#define HOG_ARCHIVE_DESCRIPTION "Descent I/II HOG file format"
#define MVL_ARCHIVE_DESCRIPTION "Descent II Movielib format"
#define ZIP_ARCHIVE_DESCRIPTION "Compatible PkZip/WinZip/Info-Zip"
#define ERR_IS_INITIALIZED "Déjà initialisé"