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authordkf <donal.k.fellows@manchester.ac.uk>2018-09-28 09:18:49 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2018-09-28 09:18:49 (GMT)
commit9dabbdf40b10e3f0419d5ad5b96f4d7c3189bc6a (patch)
tree233faf46a3a4bde6f5a4c5ad45db18d7e7cdd69e /generic/tclZipfs.c
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parent2f3fc1cfa29f6a4dac413ac62258bfb235feb257 (diff)
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+/*
+ * tclZipfs.c --
+ *
+ * Implementation of the ZIP filesystem used in TIP 430
+ * Adapted from the implentation for AndroWish.
+ *
+ * Coptright (c) 2016-2017 Sean Woods <yoda@etoyoc.com>
+ * Copyright (c) 2013-2015 Christian Werner <chw@ch-werner.de>
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * This file is distributed in two ways:
+ * generic/tclZipfs.c file in the TIP430 enabled tcl cores
+ * compat/tclZipfs.c file in the tclconfig (TEA) file system, for pre-tip430 projects
+ */
+
+#include "tclInt.h"
+#include "tclFileSystem.h"
+
+#ifdef _WIN32
+#include <winbase.h>
+#else
+#include <sys/mman.h>
+#endif
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <stdlib.h>
+#include <fcntl.h>
+
+#ifndef MAP_FILE
+#define MAP_FILE 0
+#endif
+
+#ifdef HAVE_ZLIB
+#include "zlib.h"
+#include "crypt.h"
+
+#ifdef CFG_RUNTIME_DLLFILE
+/*
+** We are compiling as part of the core.
+** TIP430 style zipfs prefix
+*/
+#define ZIPFS_VOLUME "//zipfs:/"
+#define ZIPFS_VOLUME_LEN 9
+#define ZIPFS_APP_MOUNT "//zipfs:/app"
+#define ZIPFS_ZIP_MOUNT "//zipfs:/lib/tcl"
+#else
+/*
+** We are compiling from the /compat folder of tclconfig
+** Pre TIP430 style zipfs prefix
+** //zipfs:/ doesn't work straight out of the box on either windows or Unix
+** without other changes made to tip 430
+*/
+#define ZIPFS_VOLUME "zipfs:/"
+#define ZIPFS_VOLUME_LEN 7
+#define ZIPFS_APP_MOUNT "zipfs:/app"
+#define ZIPFS_ZIP_MOUNT "zipfs:/lib/tcl"
+#endif
+/*
+ * Various constants and offsets found in ZIP archive files
+ */
+
+#define ZIP_SIG_LEN 4
+
+/* Local header of ZIP archive member (at very beginning of each member). */
+#define ZIP_LOCAL_HEADER_SIG 0x04034b50
+#define ZIP_LOCAL_HEADER_LEN 30
+#define ZIP_LOCAL_SIG_OFFS 0
+#define ZIP_LOCAL_VERSION_OFFS 4
+#define ZIP_LOCAL_FLAGS_OFFS 6
+#define ZIP_LOCAL_COMPMETH_OFFS 8
+#define ZIP_LOCAL_MTIME_OFFS 10
+#define ZIP_LOCAL_MDATE_OFFS 12
+#define ZIP_LOCAL_CRC32_OFFS 14
+#define ZIP_LOCAL_COMPLEN_OFFS 18
+#define ZIP_LOCAL_UNCOMPLEN_OFFS 22
+#define ZIP_LOCAL_PATHLEN_OFFS 26
+#define ZIP_LOCAL_EXTRALEN_OFFS 28
+
+/* Central header of ZIP archive member at end of ZIP file. */
+#define ZIP_CENTRAL_HEADER_SIG 0x02014b50
+#define ZIP_CENTRAL_HEADER_LEN 46
+#define ZIP_CENTRAL_SIG_OFFS 0
+#define ZIP_CENTRAL_VERSIONMADE_OFFS 4
+#define ZIP_CENTRAL_VERSION_OFFS 6
+#define ZIP_CENTRAL_FLAGS_OFFS 8
+#define ZIP_CENTRAL_COMPMETH_OFFS 10
+#define ZIP_CENTRAL_MTIME_OFFS 12
+#define ZIP_CENTRAL_MDATE_OFFS 14
+#define ZIP_CENTRAL_CRC32_OFFS 16
+#define ZIP_CENTRAL_COMPLEN_OFFS 20
+#define ZIP_CENTRAL_UNCOMPLEN_OFFS 24
+#define ZIP_CENTRAL_PATHLEN_OFFS 28
+#define ZIP_CENTRAL_EXTRALEN_OFFS 30
+#define ZIP_CENTRAL_FCOMMENTLEN_OFFS 32
+#define ZIP_CENTRAL_DISKFILE_OFFS 34
+#define ZIP_CENTRAL_IATTR_OFFS 36
+#define ZIP_CENTRAL_EATTR_OFFS 38
+#define ZIP_CENTRAL_LOCALHDR_OFFS 42
+
+/* Central end signature at very end of ZIP file. */
+#define ZIP_CENTRAL_END_SIG 0x06054b50
+#define ZIP_CENTRAL_END_LEN 22
+#define ZIP_CENTRAL_END_SIG_OFFS 0
+#define ZIP_CENTRAL_DISKNO_OFFS 4
+#define ZIP_CENTRAL_DISKDIR_OFFS 6
+#define ZIP_CENTRAL_ENTS_OFFS 8
+#define ZIP_CENTRAL_TOTALENTS_OFFS 10
+#define ZIP_CENTRAL_DIRSIZE_OFFS 12
+#define ZIP_CENTRAL_DIRSTART_OFFS 16
+#define ZIP_CENTRAL_COMMENTLEN_OFFS 20
+
+#define ZIP_MIN_VERSION 20
+#define ZIP_COMPMETH_STORED 0
+#define ZIP_COMPMETH_DEFLATED 8
+
+#define ZIP_PASSWORD_END_SIG 0x5a5a4b50
+
+/* Macro to report errors only if an interp is present */
+#define ZIPFS_ERROR(interp,errstr) \
+ if(interp != NULL) Tcl_SetObjResult(interp, Tcl_NewStringObj(errstr, -1));
+
+/*
+ * Macros to read and write 16 and 32 bit integers from/to ZIP archives.
+ */
+
+#define zip_read_int(p) \
+ ((p)[0] | ((p)[1] << 8) | ((p)[2] << 16) | ((p)[3] << 24))
+#define zip_read_short(p) \
+ ((p)[0] | ((p)[1] << 8))
+
+#define zip_write_int(p, v) \
+ (p)[0] = (v) & 0xff; (p)[1] = ((v) >> 8) & 0xff; \
+ (p)[2] = ((v) >> 16) & 0xff; (p)[3] = ((v) >> 24) & 0xff;
+#define zip_write_short(p, v) \
+ (p)[0] = (v) & 0xff; (p)[1] = ((v) >> 8) & 0xff;
+
+/*
+ * Windows drive letters.
+ */
+
+#ifdef _WIN32
+static const char drvletters[] =
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+#endif
+
+/*
+ * Mutex to protect localtime(3) when no reentrant version available.
+ */
+
+#ifndef _WIN32
+#ifndef HAVE_LOCALTIME_R
+#ifdef TCL_THREADS
+TCL_DECLARE_MUTEX(localtimeMutex)
+#endif
+#endif
+#endif
+
+/*
+ * In-core description of mounted ZIP archive file.
+ */
+
+typedef struct ZipFile {
+ char *name; /* Archive name */
+ size_t namelen;
+ char is_membuf; /* When true, not a file but a memory buffer */
+ Tcl_Channel chan; /* Channel handle or NULL */
+ unsigned char *data; /* Memory mapped or malloc'ed file */
+ size_t length; /* Length of memory mapped file */
+ void *tofree; /* Non-NULL if malloc'ed file */
+ size_t nfiles; /* Number of files in archive */
+ size_t baseoffs; /* Archive start */
+ size_t baseoffsp; /* Password start */
+ size_t centoffs; /* Archive directory start */
+ unsigned char pwbuf[264]; /* Password buffer */
+ size_t nopen; /* Number of open files on archive */
+ struct ZipEntry *entries; /* List of files in archive */
+ struct ZipEntry *topents; /* List of top-level dirs in archive */
+ size_t mntptlen;
+ char *mntpt; /* Mount point */
+#ifdef _WIN32
+ HANDLE mh;
+ int mntdrv; /* Drive letter of mount point */
+#endif
+} ZipFile;
+
+/*
+ * In-core description of file contained in mounted ZIP archive.
+ */
+
+typedef struct ZipEntry {
+ char *name; /* The full pathname of the virtual file */
+ ZipFile *zipfile; /* The ZIP file holding this virtual file */
+ Tcl_WideInt offset; /* Data offset into memory mapped ZIP file */
+ int nbyte; /* Uncompressed size of the virtual file */
+ int nbytecompr; /* Compressed size of the virtual file */
+ int cmeth; /* Compress method */
+ int isdir; /* Set to 1 if directory, or -1 if root */
+ int depth; /* Number of slashes in path. */
+ int crc32; /* CRC-32 */
+ int timestamp; /* Modification time */
+ int isenc; /* True if data is encrypted */
+ unsigned char *data; /* File data if written */
+ struct ZipEntry *next; /* Next file in the same archive */
+ struct ZipEntry *tnext; /* Next top-level dir in archive */
+} ZipEntry;
+
+/*
+ * File channel for file contained in mounted ZIP archive.
+ */
+
+typedef struct ZipChannel {
+ ZipFile *zipfile; /* The ZIP file holding this channel */
+ ZipEntry *zipentry; /* Pointer back to virtual file */
+ size_t nmax; /* Max. size for write */
+ size_t nbyte; /* Number of bytes of uncompressed data */
+ size_t nread; /* Pos of next byte to be read from the channel */
+ unsigned char *ubuf; /* Pointer to the uncompressed data */
+ int iscompr; /* True if data is compressed */
+ int isdir; /* Set to 1 if directory, or -1 if root */
+ int isenc; /* True if data is encrypted */
+ int iswr; /* True if open for writing */
+ unsigned long keys[3]; /* Key for decryption */
+} ZipChannel;
+
+/*
+ * Global variables.
+ *
+ * Most are kept in single ZipFS struct. When build with threading
+ * support this struct is protected by the ZipFSMutex (see below).
+ *
+ * The "fileHash" component is the process wide global table of all known
+ * ZIP archive members in all mounted ZIP archives.
+ *
+ * The "zipHash" components is the process wide global table of all mounted
+ * ZIP archive files.
+ */
+
+static struct {
+ int initialized; /* True when initialized */
+ int lock; /* RW lock, see below */
+ int waiters; /* RW lock, see below */
+ int wrmax; /* Maximum write size of a file */
+ int idCount; /* Counter for channel names */
+ Tcl_HashTable fileHash; /* File name to ZipEntry mapping */
+ Tcl_HashTable zipHash; /* Mount to ZipFile mapping */
+} ZipFS = {
+ 0, 0, 0, 0, 0,
+};
+
+/*
+ * For password rotation.
+ */
+
+static const char pwrot[16] = {
+ 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
+ 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0
+};
+
+/*
+ * Table to compute CRC32.
+ */
+
+static const z_crc_t crc32tab[256] = {
+ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
+ 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
+ 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
+ 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+ 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
+ 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+ 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
+ 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+ 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
+ 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
+ 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
+ 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+ 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
+ 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
+ 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
+ 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+ 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
+ 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+ 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
+ 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+ 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
+ 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
+ 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
+ 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+ 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
+ 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
+ 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
+ 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+ 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
+ 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+ 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
+ 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+ 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
+ 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
+ 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
+ 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+ 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
+ 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
+ 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
+ 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+ 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
+ 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+ 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
+ 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+ 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
+ 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
+ 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
+ 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+ 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
+ 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
+ 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
+ 0x2d02ef8d,
+};
+
+const char *zipfs_literal_tcl_library=NULL;
+
+/* Function prototypes */
+int TclZipfs_Mount(
+ Tcl_Interp *interp,
+ const char *mntpt,
+ const char *zipname,
+ const char *passwd
+);
+int TclZipfs_Mount_Buffer(
+ Tcl_Interp *interp,
+ const char *mntpt,
+ unsigned char *data,
+ size_t datalen,
+ int copy
+);
+static int TclZipfs_AppHook_FindTclInit(const char *archive);
+static int Zip_FSPathInFilesystemProc(Tcl_Obj *pathPtr, ClientData *clientDataPtr);
+static Tcl_Obj *Zip_FSFilesystemPathTypeProc(Tcl_Obj *pathPtr);
+static Tcl_Obj *Zip_FSFilesystemSeparatorProc(Tcl_Obj *pathPtr);
+static int Zip_FSStatProc(Tcl_Obj *pathPtr, Tcl_StatBuf *buf);
+static int Zip_FSAccessProc(Tcl_Obj *pathPtr, int mode);
+static Tcl_Channel Zip_FSOpenFileChannelProc(
+ Tcl_Interp *interp, Tcl_Obj *pathPtr,
+ int mode, int permissions
+);
+static int Zip_FSMatchInDirectoryProc(
+ Tcl_Interp* interp, Tcl_Obj *result,
+ Tcl_Obj *pathPtr, const char *pattern,
+ Tcl_GlobTypeData *types
+);
+static Tcl_Obj *Zip_FSListVolumesProc(void);
+static const char *const *Zip_FSFileAttrStringsProc(Tcl_Obj *pathPtr, Tcl_Obj** objPtrRef);
+static int Zip_FSFileAttrsGetProc(
+ Tcl_Interp *interp, int index, Tcl_Obj *pathPtr,
+ Tcl_Obj **objPtrRef
+);
+static int Zip_FSFileAttrsSetProc(Tcl_Interp *interp, int index, Tcl_Obj *pathPtr,Tcl_Obj *objPtr);
+static int Zip_FSLoadFile(Tcl_Interp *interp, Tcl_Obj *path, Tcl_LoadHandle *loadHandle,
+ Tcl_FSUnloadFileProc **unloadProcPtr, int flags);
+static void TclZipfs_C_Init(void);
+
+/*
+ * Define the ZIP filesystem dispatch table.
+ */
+
+MODULE_SCOPE const Tcl_Filesystem zipfsFilesystem;
+
+const Tcl_Filesystem zipfsFilesystem = {
+ "zipfs",
+ sizeof (Tcl_Filesystem),
+ TCL_FILESYSTEM_VERSION_2,
+ Zip_FSPathInFilesystemProc,
+ NULL, /* dupInternalRepProc */
+ NULL, /* freeInternalRepProc */
+ NULL, /* internalToNormalizedProc */
+ NULL, /* createInternalRepProc */
+ NULL, /* normalizePathProc */
+ Zip_FSFilesystemPathTypeProc,
+ Zip_FSFilesystemSeparatorProc,
+ Zip_FSStatProc,
+ Zip_FSAccessProc,
+ Zip_FSOpenFileChannelProc,
+ Zip_FSMatchInDirectoryProc,
+ NULL, /* utimeProc */
+ NULL, /* linkProc */
+ Zip_FSListVolumesProc,
+ Zip_FSFileAttrStringsProc,
+ Zip_FSFileAttrsGetProc,
+ Zip_FSFileAttrsSetProc,
+ NULL, /* createDirectoryProc */
+ NULL, /* removeDirectoryProc */
+ NULL, /* deleteFileProc */
+ NULL, /* copyFileProc */
+ NULL, /* renameFileProc */
+ NULL, /* copyDirectoryProc */
+ NULL, /* lstatProc */
+ (Tcl_FSLoadFileProc *) Zip_FSLoadFile,
+ NULL, /* getCwdProc */
+ NULL, /* chdirProc*/
+};
+
+
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ReadLock, WriteLock, Unlock --
+ *
+ * POSIX like rwlock functions to support multiple readers
+ * and single writer on internal structs.
+ *
+ * Limitations:
+ * - a read lock cannot be promoted to a write lock
+ * - a write lock may not be nested
+ *
+ *-------------------------------------------------------------------------
+ */
+
+TCL_DECLARE_MUTEX(ZipFSMutex)
+
+#ifdef TCL_THREADS
+
+static Tcl_Condition ZipFSCond;
+
+static void
+ReadLock(void)
+{
+ Tcl_MutexLock(&ZipFSMutex);
+ while (ZipFS.lock < 0) {
+ ZipFS.waiters++;
+ Tcl_ConditionWait(&ZipFSCond, &ZipFSMutex, NULL);
+ ZipFS.waiters--;
+ }
+ ZipFS.lock++;
+ Tcl_MutexUnlock(&ZipFSMutex);
+}
+
+static void
+WriteLock(void)
+{
+ Tcl_MutexLock(&ZipFSMutex);
+ while (ZipFS.lock != 0) {
+ ZipFS.waiters++;
+ Tcl_ConditionWait(&ZipFSCond, &ZipFSMutex, NULL);
+ ZipFS.waiters--;
+ }
+ ZipFS.lock = -1;
+ Tcl_MutexUnlock(&ZipFSMutex);
+}
+
+static void
+Unlock(void)
+{
+ Tcl_MutexLock(&ZipFSMutex);
+ if (ZipFS.lock > 0) {
+ --ZipFS.lock;
+ } else if (ZipFS.lock < 0) {
+ ZipFS.lock = 0;
+ }
+ if ((ZipFS.lock == 0) && (ZipFS.waiters > 0)) {
+ Tcl_ConditionNotify(&ZipFSCond);
+ }
+ Tcl_MutexUnlock(&ZipFSMutex);
+}
+
+#else
+
+#define ReadLock() do {} while (0)
+#define WriteLock() do {} while (0)
+#define Unlock() do {} while (0)
+
+#endif
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * DosTimeDate, ToDosTime, ToDosDate --
+ *
+ * Functions to perform conversions between DOS time stamps
+ * and POSIX time_t.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static time_t
+DosTimeDate(int dosDate, int dosTime)
+{
+ struct tm tm;
+ time_t ret;
+
+ memset(&tm, 0, sizeof (tm));
+ tm.tm_year = (((dosDate & 0xfe00) >> 9) + 80);
+ tm.tm_mon = ((dosDate & 0x1e0) >> 5) - 1;
+ tm.tm_mday = dosDate & 0x1f;
+ tm.tm_hour = (dosTime & 0xf800) >> 11;
+ tm.tm_min = (dosTime & 0x7e) >> 5;
+ tm.tm_sec = (dosTime & 0x1f) << 1;
+ ret = mktime(&tm);
+ if (ret == (time_t) -1) {
+ /* fallback to 1980-01-01T00:00:00+00:00 (DOS epoch) */
+ ret = (time_t) 315532800;
+ }
+ return ret;
+}
+
+static int
+ToDosTime(time_t when)
+{
+ struct tm *tmp, tm;
+
+#ifdef TCL_THREADS
+#ifdef _WIN32
+ /* Win32 uses thread local storage */
+ tmp = localtime(&when);
+ tm = *tmp;
+#else
+#ifdef HAVE_LOCALTIME_R
+ tmp = &tm;
+ localtime_r(&when, tmp);
+#else
+ Tcl_MutexLock(&localtimeMutex);
+ tmp = localtime(&when);
+ tm = *tmp;
+ Tcl_MutexUnlock(&localtimeMutex);
+#endif
+#endif
+#else
+ tmp = localtime(&when);
+ tm = *tmp;
+#endif
+ return (tm.tm_hour << 11) | (tm.tm_min << 5) | (tm.tm_sec >> 1);
+}
+
+static int
+ToDosDate(time_t when)
+{
+ struct tm *tmp, tm;
+
+#ifdef TCL_THREADS
+#ifdef _WIN32
+ /* Win32 uses thread local storage */
+ tmp = localtime(&when);
+ tm = *tmp;
+#else
+#ifdef HAVE_LOCALTIME_R
+ tmp = &tm;
+ localtime_r(&when, tmp);
+#else
+ Tcl_MutexLock(&localtimeMutex);
+ tmp = localtime(&when);
+ tm = *tmp;
+ Tcl_MutexUnlock(&localtimeMutex);
+#endif
+#endif
+#else
+ tmp = localtime(&when);
+ tm = *tmp;
+#endif
+ return ((tm.tm_year - 80) << 9) | ((tm.tm_mon + 1) << 5) | tm.tm_mday;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * CountSlashes --
+ *
+ * This function counts the number of slashes in a pathname string.
+ *
+ * Results:
+ * Number of slashes found in string.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+CountSlashes(const char *string)
+{
+ int count = 0;
+ const char *p = string;
+
+ while (*p != '\0') {
+ if (*p == '/') {
+ count++;
+ }
+ p++;
+ }
+ return count;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * CanonicalPath --
+ *
+ * This function computes the canonical path from a directory
+ * and file name components into the specified Tcl_DString.
+ *
+ * Results:
+ * Returns the pointer to the canonical path contained in the
+ * specified Tcl_DString.
+ *
+ * Side effects:
+ * Modifies the specified Tcl_DString.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static char *
+CanonicalPath(const char *root, const char *tail, Tcl_DString *dsPtr,int ZIPFSPATH)
+{
+ char *path;
+ char *result;
+ int i, j, c, isunc = 0, isvfs=0, n=0;
+#ifdef _WIN32
+ int zipfspath=1;
+ if (
+ (tail[0] != '\0')
+ && (strchr(drvletters, tail[0]) != NULL)
+ && (tail[1] == ':')
+ ) {
+ tail += 2;
+ zipfspath=0;
+ }
+ /* UNC style path */
+ if (tail[0] == '\\') {
+ root = "";
+ ++tail;
+ zipfspath=0;
+ }
+ if (tail[0] == '\\') {
+ root = "/";
+ ++tail;
+ zipfspath=0;
+ }
+ if(zipfspath) {
+#endif
+ /* UNC style path */
+ if(root && strncmp(root,ZIPFS_VOLUME,ZIPFS_VOLUME_LEN)==0) {
+ isvfs=1;
+ } else if (tail && strncmp(tail,ZIPFS_VOLUME,ZIPFS_VOLUME_LEN) == 0) {
+ isvfs=2;
+ }
+ if(isvfs!=1) {
+ if ((root[0] == '/') && (root[1] == '/')) {
+ isunc = 1;
+ }
+ }
+#ifdef _WIN32
+ }
+#endif
+ if(isvfs!=2) {
+ if (tail[0] == '/') {
+ if(isvfs!=1) {
+ root = "";
+ }
+ ++tail;
+ isunc = 0;
+ }
+ if (tail[0] == '/') {
+ if(isvfs!=1) {
+ root = "/";
+ }
+ ++tail;
+ isunc = 1;
+ }
+ }
+ i = strlen(root);
+ j = strlen(tail);
+ if(isvfs==1) {
+ if(i>ZIPFS_VOLUME_LEN) {
+ Tcl_DStringSetLength(dsPtr, i + j + 1);
+ path = Tcl_DStringValue(dsPtr);
+ memcpy(path, root, i);
+ path[i++] = '/';
+ memcpy(path + i, tail, j);
+ } else {
+ Tcl_DStringSetLength(dsPtr, i + j);
+ path = Tcl_DStringValue(dsPtr);
+ memcpy(path, root, i);
+ memcpy(path + i, tail, j);
+ }
+ } else if(isvfs==2) {
+ Tcl_DStringSetLength(dsPtr, j);
+ path = Tcl_DStringValue(dsPtr);
+ memcpy(path, tail, j);
+ } else {
+ if (ZIPFSPATH) {
+ Tcl_DStringSetLength(dsPtr, i + j + ZIPFS_VOLUME_LEN);
+ path = Tcl_DStringValue(dsPtr);
+ memcpy(path, ZIPFS_VOLUME, ZIPFS_VOLUME_LEN);
+ memcpy(path + ZIPFS_VOLUME_LEN + i , tail, j);
+ } else {
+ Tcl_DStringSetLength(dsPtr, i + j + 1);
+ path = Tcl_DStringValue(dsPtr);
+ memcpy(path, root, i);
+ path[i++] = '/';
+ memcpy(path + i, tail, j);
+ }
+ }
+#ifdef _WIN32
+ for (i = 0; path[i] != '\0'; i++) {
+ if (path[i] == '\\') {
+ path[i] = '/';
+ }
+ }
+#endif
+ if(ZIPFSPATH) {
+ n=ZIPFS_VOLUME_LEN;
+ } else {
+ n=0;
+ }
+ for (i = j = n; (c = path[i]) != '\0'; i++) {
+ if (c == '/') {
+ int c2 = path[i + 1];
+ if (c2 == '/') {
+ continue;
+ }
+ if (c2 == '.') {
+ int c3 = path[i + 2];
+ if ((c3 == '/') || (c3 == '\0')) {
+ i++;
+ continue;
+ }
+ if (
+ (c3 == '.')
+ && ((path[i + 3] == '/') || (path [i + 3] == '\0'))
+ ) {
+ i += 2;
+ while ((j > 0) && (path[j - 1] != '/')) {
+ j--;
+ }
+ if (j > isunc) {
+ --j;
+ while ((j > 1 + isunc) && (path[j - 2] == '/')) {
+ j--;
+ }
+ }
+ continue;
+ }
+ }
+ }
+ path[j++] = c;
+ }
+ if (j == 0) {
+ path[j++] = '/';
+ }
+ path[j] = 0;
+ Tcl_DStringSetLength(dsPtr, j);
+ result=Tcl_DStringValue(dsPtr);
+ return result;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSLookup --
+ *
+ * This function returns the ZIP entry struct corresponding to
+ * the ZIP archive member of the given file name.
+ *
+ * Results:
+ * Returns the pointer to ZIP entry struct or NULL if the
+ * the given file name could not be found in the global list
+ * of ZIP archive members.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static ZipEntry *
+ZipFSLookup(char *filename)
+{
+ Tcl_HashEntry *hPtr;
+ ZipEntry *z;
+ Tcl_DString ds;
+ Tcl_DStringInit(&ds);
+ hPtr = Tcl_FindHashEntry(&ZipFS.fileHash, filename);
+ z = hPtr ? (ZipEntry *) Tcl_GetHashValue(hPtr) : NULL;
+ Tcl_DStringFree(&ds);
+ return z;
+}
+
+#ifdef NEVER_USED
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSLookupMount --
+ *
+ * This function returns an indication if the given file name
+ * corresponds to a mounted ZIP archive file.
+ *
+ * Results:
+ * Returns true, if the given file name is a mounted ZIP archive file.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSLookupMount(char *filename)
+{
+ Tcl_HashEntry *hPtr;
+ Tcl_HashSearch search;
+ ZipFile *zf;
+ int match = 0;
+ hPtr = Tcl_FirstHashEntry(&ZipFS.zipHash, &search);
+ while (hPtr != NULL) {
+ if ((zf = (ZipFile *) Tcl_GetHashValue(hPtr)) == NULL) continue;
+ if (strcmp(zf->mntpt, filename) == 0) {
+ match = 1;
+ break;
+ }
+ hPtr = Tcl_NextHashEntry(&search);
+ }
+ return match;
+}
+#endif
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSCloseArchive --
+ *
+ * This function closes a mounted ZIP archive file.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * A memory mapped ZIP archive is unmapped, allocated memory is
+ * released.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static void
+ZipFSCloseArchive(Tcl_Interp *interp, ZipFile *zf)
+{
+ if(zf->namelen) {
+ free(zf->name); //Allocated by strdup
+ }
+ if(zf->is_membuf==1) {
+ /* Pointer to memory */
+ if (zf->tofree != NULL) {
+ Tcl_Free(zf->tofree);
+ zf->tofree = NULL;
+ }
+ zf->data = NULL;
+ return;
+ }
+#ifdef _WIN32
+ if ((zf->data != NULL) && (zf->tofree == NULL)) {
+ UnmapViewOfFile(zf->data);
+ zf->data = NULL;
+ }
+ if (zf->mh != INVALID_HANDLE_VALUE) {
+ CloseHandle(zf->mh);
+ }
+#else
+ if ((zf->data != MAP_FAILED) && (zf->tofree == NULL)) {
+ munmap(zf->data, zf->length);
+ zf->data = MAP_FAILED;
+ }
+#endif
+ if (zf->tofree != NULL) {
+ Tcl_Free(zf->tofree);
+ zf->tofree = NULL;
+ }
+ if(zf->chan != NULL) {
+ Tcl_Close(interp, zf->chan);
+ zf->chan = NULL;
+ }
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFS_Find_TOC --
+ *
+ * This function takes a memory mapped zip file and indexes the contents.
+ * When "needZip" is zero an embedded ZIP archive in an executable file is accepted.
+ *
+ * Results:
+ * TCL_OK on success, TCL_ERROR otherwise with an error message
+ * placed into the given "interp" if it is not NULL.
+ *
+ * Side effects:
+ * The given ZipFile struct is filled with information about the ZIP archive file.
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+ZipFS_Find_TOC(Tcl_Interp *interp, int needZip, ZipFile *zf)
+{
+ size_t i;
+ unsigned char *p, *q;
+ p = zf->data + zf->length - ZIP_CENTRAL_END_LEN;
+ while (p >= zf->data) {
+ if (*p == (ZIP_CENTRAL_END_SIG & 0xFF)) {
+ if (zip_read_int(p) == ZIP_CENTRAL_END_SIG) {
+ break;
+ }
+ p -= ZIP_SIG_LEN;
+ } else {
+ --p;
+ }
+ }
+ if (p < zf->data) {
+ if (!needZip) {
+ zf->baseoffs = zf->baseoffsp = zf->length;
+ return TCL_OK;
+ }
+ ZIPFS_ERROR(interp,"wrong end signature");
+ goto error;
+ }
+ zf->nfiles = zip_read_short(p + ZIP_CENTRAL_ENTS_OFFS);
+ if (zf->nfiles == 0) {
+ if (!needZip) {
+ zf->baseoffs = zf->baseoffsp = zf->length;
+ return TCL_OK;
+ }
+ ZIPFS_ERROR(interp,"empty archive");
+ goto error;
+ }
+ q = zf->data + zip_read_int(p + ZIP_CENTRAL_DIRSTART_OFFS);
+ p -= zip_read_int(p + ZIP_CENTRAL_DIRSIZE_OFFS);
+ if (
+ (p < zf->data) || (p > (zf->data + zf->length)) ||
+ (q < zf->data) || (q > (zf->data + zf->length))
+ ) {
+ if (!needZip) {
+ zf->baseoffs = zf->baseoffsp = zf->length;
+ return TCL_OK;
+ }
+ ZIPFS_ERROR(interp,"archive directory not found");
+ goto error;
+ }
+ zf->baseoffs = zf->baseoffsp = p - q;
+ zf->centoffs = p - zf->data;
+ q = p;
+ for (i = 0; i < zf->nfiles; i++) {
+ int pathlen, comlen, extra;
+
+ if ((q + ZIP_CENTRAL_HEADER_LEN) > (zf->data + zf->length)) {
+ ZIPFS_ERROR(interp,"wrong header length");
+ goto error;
+ }
+ if (zip_read_int(q) != ZIP_CENTRAL_HEADER_SIG) {
+ ZIPFS_ERROR(interp,"wrong header signature");
+ goto error;
+ }
+ pathlen = zip_read_short(q + ZIP_CENTRAL_PATHLEN_OFFS);
+ comlen = zip_read_short(q + ZIP_CENTRAL_FCOMMENTLEN_OFFS);
+ extra = zip_read_short(q + ZIP_CENTRAL_EXTRALEN_OFFS);
+ q += pathlen + comlen + extra + ZIP_CENTRAL_HEADER_LEN;
+ }
+ q = zf->data + zf->baseoffs;
+ if ((zf->baseoffs >= 6) && (zip_read_int(q - 4) == ZIP_PASSWORD_END_SIG)) {
+ i = q[-5];
+ if (q - 5 - i > zf->data) {
+ zf->pwbuf[0] = i;
+ memcpy(zf->pwbuf + 1, q - 5 - i, i);
+ zf->baseoffsp -= i ? (5 + i) : 0;
+ }
+ }
+
+ return TCL_OK;
+
+error:
+ ZipFSCloseArchive(interp, zf);
+ return TCL_ERROR;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSOpenArchive --
+ *
+ * This function opens a ZIP archive file for reading. An attempt
+ * is made to memory map that file. Otherwise it is read into
+ * an allocated memory buffer. The ZIP archive header is verified
+ * and must be valid for the function to succeed. When "needZip"
+ * is zero an embedded ZIP archive in an executable file is accepted.
+ *
+ * Results:
+ * TCL_OK on success, TCL_ERROR otherwise with an error message
+ * placed into the given "interp" if it is not NULL.
+ *
+ * Side effects:
+ * ZIP archive is memory mapped or read into allocated memory,
+ * the given ZipFile struct is filled with information about
+ * the ZIP archive file.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSOpenArchive(Tcl_Interp *interp, const char *zipname, int needZip, ZipFile *zf)
+{
+ size_t i;
+ ClientData handle;
+ zf->namelen=0;
+ zf->is_membuf=0;
+#ifdef _WIN32
+ zf->data = NULL;
+ zf->mh = INVALID_HANDLE_VALUE;
+#else
+ zf->data = MAP_FAILED;
+#endif
+ zf->length = 0;
+ zf->nfiles = 0;
+ zf->baseoffs = zf->baseoffsp = 0;
+ zf->tofree = NULL;
+ zf->pwbuf[0] = 0;
+ zf->chan = Tcl_OpenFileChannel(interp, zipname, "r", 0);
+ if (zf->chan == NULL) {
+ return TCL_ERROR;
+ }
+ if (Tcl_GetChannelHandle(zf->chan, TCL_READABLE, &handle) != TCL_OK) {
+ if (Tcl_SetChannelOption(interp, zf->chan, "-translation", "binary") != TCL_OK) {
+ goto error;
+ }
+ if (Tcl_SetChannelOption(interp, zf->chan, "-encoding", "binary") != TCL_OK) {
+ goto error;
+ }
+ zf->length = Tcl_Seek(zf->chan, 0, SEEK_END);
+ if ((zf->length - ZIP_CENTRAL_END_LEN) > (64 * 1024 * 1024 - ZIP_CENTRAL_END_LEN)) {
+ ZIPFS_ERROR(interp,"illegal file size");
+ goto error;
+ }
+ Tcl_Seek(zf->chan, 0, SEEK_SET);
+ zf->tofree = zf->data = (unsigned char *) Tcl_AttemptAlloc(zf->length);
+ if (zf->tofree == NULL) {
+ ZIPFS_ERROR(interp,"out of memory")
+ goto error;
+ }
+ i = Tcl_Read(zf->chan, (char *) zf->data, zf->length);
+ if (i != zf->length) {
+ ZIPFS_ERROR(interp,"file read error");
+ goto error;
+ }
+ Tcl_Close(interp, zf->chan);
+ zf->chan = NULL;
+ } else {
+#ifdef _WIN32
+# ifdef _WIN64
+ i = GetFileSizeEx((HANDLE) handle, (PLARGE_INTEGER)&zf->length);
+ if (
+ (i == 0) ||
+# else
+ zf->length = GetFileSize((HANDLE) handle, 0);
+ if (
+ (zf->length == (size_t)INVALID_FILE_SIZE) ||
+# endif
+ (zf->length < ZIP_CENTRAL_END_LEN)
+ ) {
+ ZIPFS_ERROR(interp,"invalid file size");
+ goto error;
+ }
+ zf->mh = CreateFileMapping((HANDLE) handle, 0, PAGE_READONLY, 0,
+ zf->length, 0);
+ if (zf->mh == INVALID_HANDLE_VALUE) {
+ ZIPFS_ERROR(interp,"file mapping failed");
+ goto error;
+ }
+ zf->data = MapViewOfFile(zf->mh, FILE_MAP_READ, 0, 0, zf->length);
+ if (zf->data == NULL) {
+ ZIPFS_ERROR(interp,"file mapping failed");
+ goto error;
+ }
+#else
+ zf->length = lseek(PTR2INT(handle), 0, SEEK_END);
+ if ((zf->length == (size_t)-1) || (zf->length < ZIP_CENTRAL_END_LEN)) {
+ ZIPFS_ERROR(interp,"invalid file size");
+ goto error;
+ }
+ lseek(PTR2INT(handle), 0, SEEK_SET);
+ zf->data = (unsigned char *) mmap(0, zf->length, PROT_READ,
+ MAP_FILE | MAP_PRIVATE,
+ PTR2INT(handle), 0);
+ if (zf->data == MAP_FAILED) {
+ ZIPFS_ERROR(interp,"file mapping failed");
+ goto error;
+ }
+#endif
+ }
+ return ZipFS_Find_TOC(interp,needZip,zf);
+
+error:
+ ZipFSCloseArchive(interp, zf);
+ return TCL_ERROR;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSRootNode --
+ *
+ * This function generates the root node for a ZIPFS filesystem
+ *
+ * Results:
+ * TCL_OK on success, TCL_ERROR otherwise with an error message
+ * placed into the given "interp" if it is not NULL.
+ *
+ * Side effects:
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFS_Catalogue_Filesystem(Tcl_Interp *interp, ZipFile *zf0, const char *mntpt, const char *passwd, const char *zipname)
+{
+ int pwlen, isNew;
+ size_t i;
+ ZipFile *zf;
+ ZipEntry *z;
+ Tcl_HashEntry *hPtr;
+ Tcl_DString ds, dsm, fpBuf;
+ unsigned char *q;
+ WriteLock();
+
+ pwlen = 0;
+ if (passwd != NULL) {
+ pwlen = strlen(passwd);
+ if ((pwlen > 255) || (strchr(passwd, 0xff) != NULL)) {
+ if (interp) {
+ Tcl_SetObjResult(interp,
+ Tcl_NewStringObj("illegal password", -1));
+ }
+ return TCL_ERROR;
+ }
+ }
+ /*
+ * Mount point sometimes is a relative or otherwise denormalized path.
+ * But an absolute name is needed as mount point here.
+ */
+ Tcl_DStringInit(&ds);
+ Tcl_DStringInit(&dsm);
+ if (strcmp(mntpt, "/") == 0) {
+ mntpt = "";
+ } else {
+ mntpt = CanonicalPath("",mntpt, &dsm, 1);
+ }
+ hPtr = Tcl_CreateHashEntry(&ZipFS.zipHash, mntpt, &isNew);
+ if (!isNew) {
+ zf = (ZipFile *) Tcl_GetHashValue(hPtr);
+ if (interp != NULL) {
+ Tcl_AppendResult(interp, zf->name, " is already mounted on ", mntpt, (char *) NULL);
+ }
+ Unlock();
+ ZipFSCloseArchive(interp, zf0);
+ return TCL_ERROR;
+ }
+ zf = (ZipFile *) Tcl_AttemptAlloc(sizeof (*zf) + strlen(mntpt) + 1);
+ if (zf == NULL) {
+ if (interp != NULL) {
+ Tcl_AppendResult(interp, "out of memory", (char *) NULL);
+ }
+ Unlock();
+ ZipFSCloseArchive(interp, zf0);
+ return TCL_ERROR;
+ }
+ Unlock();
+ *zf = *zf0;
+ zf->mntpt = Tcl_GetHashKey(&ZipFS.zipHash, hPtr);
+ zf->mntptlen=strlen(zf->mntpt);
+ zf->name = strdup(zipname);
+ zf->namelen= strlen(zipname);
+ zf->entries = NULL;
+ zf->topents = NULL;
+ zf->nopen = 0;
+ Tcl_SetHashValue(hPtr, (ClientData) zf);
+ if ((zf->pwbuf[0] == 0) && pwlen) {
+ int k = 0;
+ i = pwlen;
+ zf->pwbuf[k++] = i;
+ while (i > 0) {
+ zf->pwbuf[k] = (passwd[i - 1] & 0x0f) |
+ pwrot[(passwd[i - 1] >> 4) & 0x0f];
+ k++;
+ i--;
+ }
+ zf->pwbuf[k] = '\0';
+ }
+ if (mntpt[0] != '\0') {
+ z = (ZipEntry *) Tcl_Alloc(sizeof (*z));
+ z->name = NULL;
+ z->tnext = NULL;
+ z->depth = CountSlashes(mntpt);
+ z->zipfile = zf;
+ z->isdir = (zf->baseoffs == 0) ? 1 : -1; /* root marker */
+ z->isenc = 0;
+ z->offset = zf->baseoffs;
+ z->crc32 = 0;
+ z->timestamp = 0;
+ z->nbyte = z->nbytecompr = 0;
+ z->cmeth = ZIP_COMPMETH_STORED;
+ z->data = NULL;
+ hPtr = Tcl_CreateHashEntry(&ZipFS.fileHash, mntpt, &isNew);
+ if (!isNew) {
+ /* skip it */
+ Tcl_Free((char *) z);
+ } else {
+ Tcl_SetHashValue(hPtr, (ClientData) z);
+ z->name = Tcl_GetHashKey(&ZipFS.fileHash, hPtr);
+ z->next = zf->entries;
+ zf->entries = z;
+ }
+ }
+ q = zf->data + zf->centoffs;
+ Tcl_DStringInit(&fpBuf);
+ for (i = 0; i < zf->nfiles; i++) {
+ int extra, isdir = 0, dosTime, dosDate, nbcompr;
+ size_t offs, pathlen, comlen;
+ unsigned char *lq, *gq = NULL;
+ char *fullpath, *path;
+
+ pathlen = zip_read_short(q + ZIP_CENTRAL_PATHLEN_OFFS);
+ comlen = zip_read_short(q + ZIP_CENTRAL_FCOMMENTLEN_OFFS);
+ extra = zip_read_short(q + ZIP_CENTRAL_EXTRALEN_OFFS);
+ Tcl_DStringSetLength(&ds, 0);
+ Tcl_DStringAppend(&ds, (char *) q + ZIP_CENTRAL_HEADER_LEN, pathlen);
+ path = Tcl_DStringValue(&ds);
+ if ((pathlen > 0) && (path[pathlen - 1] == '/')) {
+ Tcl_DStringSetLength(&ds, pathlen - 1);
+ path = Tcl_DStringValue(&ds);
+ isdir = 1;
+ }
+ if ((strcmp(path, ".") == 0) || (strcmp(path, "..") == 0)) {
+ goto nextent;
+ }
+ lq = zf->data + zf->baseoffs + zip_read_int(q + ZIP_CENTRAL_LOCALHDR_OFFS);
+ if ((lq < zf->data) || (lq > (zf->data + zf->length))) {
+ goto nextent;
+ }
+ nbcompr = zip_read_int(lq + ZIP_LOCAL_COMPLEN_OFFS);
+ if (
+ !isdir && (nbcompr == 0)
+ && (zip_read_int(lq + ZIP_LOCAL_UNCOMPLEN_OFFS) == 0)
+ && (zip_read_int(lq + ZIP_LOCAL_CRC32_OFFS) == 0)
+ ) {
+ gq = q;
+ nbcompr = zip_read_int(gq + ZIP_CENTRAL_COMPLEN_OFFS);
+ }
+ offs = (lq - zf->data)
+ + ZIP_LOCAL_HEADER_LEN
+ + zip_read_short(lq + ZIP_LOCAL_PATHLEN_OFFS)
+ + zip_read_short(lq + ZIP_LOCAL_EXTRALEN_OFFS);
+ if ((offs + nbcompr) > zf->length) {
+ goto nextent;
+ }
+ if (!isdir && (mntpt[0] == '\0') && !CountSlashes(path)) {
+#ifdef ANDROID
+ /*
+ * When mounting the ZIP archive on the root directory try
+ * to remap top level regular files of the archive to
+ * /assets/.root/... since this directory should not be
+ * in a valid APK due to the leading dot in the file name
+ * component. This trick should make the files
+ * AndroidManifest.xml, resources.arsc, and classes.dex
+ * visible to Tcl.
+ */
+ Tcl_DString ds2;
+
+ Tcl_DStringInit(&ds2);
+ Tcl_DStringAppend(&ds2, "assets/.root/", -1);
+ Tcl_DStringAppend(&ds2, path, -1);
+ hPtr = Tcl_FindHashEntry(&ZipFS.fileHash, Tcl_DStringValue(&ds2));
+ if (hPtr != NULL) {
+ /* should not happen but skip it anyway */
+ Tcl_DStringFree(&ds2);
+ goto nextent;
+ }
+ Tcl_DStringSetLength(&ds, 0);
+ Tcl_DStringAppend(&ds, Tcl_DStringValue(&ds2), Tcl_DStringLength(&ds2));
+ path = Tcl_DStringValue(&ds);
+ Tcl_DStringFree(&ds2);
+#else
+ /*
+ * Regular files skipped when mounting on root.
+ */
+ goto nextent;
+#endif
+ }
+ Tcl_DStringSetLength(&fpBuf, 0);
+ fullpath = CanonicalPath(mntpt, path, &fpBuf, 1);
+ z = (ZipEntry *) Tcl_Alloc(sizeof (*z));
+ z->name = NULL;
+ z->tnext = NULL;
+ z->depth = CountSlashes(fullpath);
+ z->zipfile = zf;
+ z->isdir = isdir;
+ z->isenc = (zip_read_short(lq + ZIP_LOCAL_FLAGS_OFFS) & 1) && (nbcompr > 12);
+ z->offset = offs;
+ if (gq != NULL) {
+ z->crc32 = zip_read_int(gq + ZIP_CENTRAL_CRC32_OFFS);
+ dosDate = zip_read_short(gq + ZIP_CENTRAL_MDATE_OFFS);
+ dosTime = zip_read_short(gq + ZIP_CENTRAL_MTIME_OFFS);
+ z->timestamp = DosTimeDate(dosDate, dosTime);
+ z->nbyte = zip_read_int(gq + ZIP_CENTRAL_UNCOMPLEN_OFFS);
+ z->cmeth = zip_read_short(gq + ZIP_CENTRAL_COMPMETH_OFFS);
+ } else {
+ z->crc32 = zip_read_int(lq + ZIP_LOCAL_CRC32_OFFS);
+ dosDate = zip_read_short(lq + ZIP_LOCAL_MDATE_OFFS);
+ dosTime = zip_read_short(lq + ZIP_LOCAL_MTIME_OFFS);
+ z->timestamp = DosTimeDate(dosDate, dosTime);
+ z->nbyte = zip_read_int(lq + ZIP_LOCAL_UNCOMPLEN_OFFS);
+ z->cmeth = zip_read_short(lq + ZIP_LOCAL_COMPMETH_OFFS);
+ }
+ z->nbytecompr = nbcompr;
+ z->data = NULL;
+ hPtr = Tcl_CreateHashEntry(&ZipFS.fileHash, fullpath, &isNew);
+ if (!isNew) {
+ /* should not happen but skip it anyway */
+ Tcl_Free((char *) z);
+ } else {
+ Tcl_SetHashValue(hPtr, (ClientData) z);
+ z->name = Tcl_GetHashKey(&ZipFS.fileHash, hPtr);
+ z->next = zf->entries;
+ zf->entries = z;
+ if (isdir && (mntpt[0] == '\0') && (z->depth == 1)) {
+ z->tnext = zf->topents;
+ zf->topents = z;
+ }
+ if (!z->isdir && (z->depth > 1)) {
+ char *dir, *end;
+ ZipEntry *zd;
+
+ Tcl_DStringSetLength(&ds, strlen(z->name) + 8);
+ Tcl_DStringSetLength(&ds, 0);
+ Tcl_DStringAppend(&ds, z->name, -1);
+ dir = Tcl_DStringValue(&ds);
+ end = strrchr(dir, '/');
+ while ((end != NULL) && (end != dir)) {
+ Tcl_DStringSetLength(&ds, end - dir);
+ hPtr = Tcl_FindHashEntry(&ZipFS.fileHash, dir);
+ if (hPtr != NULL) {
+ break;
+ }
+ zd = (ZipEntry *) Tcl_Alloc(sizeof (*zd));
+ zd->name = NULL;
+ zd->tnext = NULL;
+ zd->depth = CountSlashes(dir);
+ zd->zipfile = zf;
+ zd->isdir = 1;
+ zd->isenc = 0;
+ zd->offset = z->offset;
+ zd->crc32 = 0;
+ zd->timestamp = z->timestamp;
+ zd->nbyte = zd->nbytecompr = 0;
+ zd->cmeth = ZIP_COMPMETH_STORED;
+ zd->data = NULL;
+ hPtr = Tcl_CreateHashEntry(&ZipFS.fileHash, dir, &isNew);
+ if (!isNew) {
+ /* should not happen but skip it anyway */
+ Tcl_Free((char *) zd);
+ } else {
+ Tcl_SetHashValue(hPtr, (ClientData) zd);
+ zd->name = Tcl_GetHashKey(&ZipFS.fileHash, hPtr);
+ zd->next = zf->entries;
+ zf->entries = zd;
+ if ((mntpt[0] == '\0') && (zd->depth == 1)) {
+ zd->tnext = zf->topents;
+ zf->topents = zd;
+ }
+ }
+ end = strrchr(dir, '/');
+ }
+ }
+ }
+nextent:
+ q += pathlen + comlen + extra + ZIP_CENTRAL_HEADER_LEN;
+ }
+ Tcl_DStringFree(&fpBuf);
+ Tcl_DStringFree(&ds);
+ Tcl_FSMountsChanged(NULL);
+ Unlock();
+ return TCL_OK;
+}
+
+static void TclZipfs_C_Init(void) {
+ static const Tcl_Time t = { 0, 0 };
+ if (!ZipFS.initialized) {
+#ifdef TCL_THREADS
+ /*
+ * Inflate condition variable.
+ */
+ Tcl_MutexLock(&ZipFSMutex);
+ Tcl_ConditionWait(&ZipFSCond, &ZipFSMutex, &t);
+ Tcl_MutexUnlock(&ZipFSMutex);
+#endif
+ Tcl_FSRegister(NULL, &zipfsFilesystem);
+ Tcl_InitHashTable(&ZipFS.fileHash, TCL_STRING_KEYS);
+ Tcl_InitHashTable(&ZipFS.zipHash, TCL_STRING_KEYS);
+ ZipFS.initialized = ZipFS.idCount = 1;
+ }
+}
+
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * TclZipfs_Mount --
+ *
+ * This procedure is invoked to mount a given ZIP archive file on
+ * a given mountpoint with optional ZIP password.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * A ZIP archive file is read, analyzed and mounted, resources are
+ * allocated.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+int
+TclZipfs_Mount(
+ Tcl_Interp *interp,
+ const char *mntpt,
+ const char *zipname,
+ const char *passwd
+) {
+ int i, pwlen;
+ ZipFile *zf;
+
+ ReadLock();
+ if (!ZipFS.initialized) {
+ TclZipfs_C_Init();
+ }
+ if (mntpt == NULL) {
+ Tcl_HashEntry *hPtr;
+ Tcl_HashSearch search;
+ int ret = TCL_OK;
+ i = 0;
+ hPtr = Tcl_FirstHashEntry(&ZipFS.zipHash, &search);
+ while (hPtr != NULL) {
+ if ((zf = (ZipFile *) Tcl_GetHashValue(hPtr)) != NULL) {
+ if (interp != NULL) {
+ Tcl_AppendElement(interp, zf->mntpt);
+ Tcl_AppendElement(interp, zf->name);
+ }
+ ++i;
+ }
+ hPtr = Tcl_NextHashEntry(&search);
+ }
+ if (interp == NULL) {
+ ret = (i > 0) ? TCL_OK : TCL_BREAK;
+ }
+ Unlock();
+ return ret;
+ }
+
+ if (zipname == NULL) {
+ Tcl_HashEntry *hPtr;
+ if (interp == NULL) {
+ Unlock();
+ return TCL_OK;
+ }
+ hPtr = Tcl_FindHashEntry(&ZipFS.zipHash, mntpt);
+ if (hPtr != NULL) {
+ if ((zf = Tcl_GetHashValue(hPtr)) != NULL) {
+ Tcl_SetObjResult(interp,Tcl_NewStringObj(zf->name, -1));
+ }
+ }
+ Unlock();
+ return TCL_OK;
+ }
+ Unlock();
+ pwlen = 0;
+ if (passwd != NULL) {
+ pwlen = strlen(passwd);
+ if ((pwlen > 255) || (strchr(passwd, 0xff) != NULL)) {
+ if (interp) {
+ Tcl_SetObjResult(interp,
+ Tcl_NewStringObj("illegal password", -1));
+ }
+ return TCL_ERROR;
+ }
+ }
+ zf = (ZipFile *) Tcl_AttemptAlloc(sizeof (*zf) + strlen(mntpt) + 1);
+ if (zf == NULL) {
+ if (interp != NULL) {
+ Tcl_AppendResult(interp, "out of memory", (char *) NULL);
+ }
+ return TCL_ERROR;
+ }
+ if (ZipFSOpenArchive(interp, zipname, 1, zf) != TCL_OK) {
+ return TCL_ERROR;
+ }
+ return ZipFS_Catalogue_Filesystem(interp,zf,mntpt,passwd,zipname);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * TclZipfs_Mount_Buffer --
+ *
+ * This procedure is invoked to mount a given ZIP archive file on
+ * a given mountpoint with optional ZIP password.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * A ZIP archive file is read, analyzed and mounted, resources are
+ * allocated.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+int
+TclZipfs_Mount_Buffer(
+ Tcl_Interp *interp,
+ const char *mntpt,
+ unsigned char *data,
+ size_t datalen,
+ int copy
+) {
+ int i;
+ ZipFile *zf;
+
+ ReadLock();
+ if (!ZipFS.initialized) {
+ TclZipfs_C_Init();
+ }
+ if (mntpt == NULL) {
+ Tcl_HashEntry *hPtr;
+ Tcl_HashSearch search;
+ int ret = TCL_OK;
+
+ i = 0;
+ hPtr = Tcl_FirstHashEntry(&ZipFS.zipHash, &search);
+ while (hPtr != NULL) {
+ if ((zf = (ZipFile *) Tcl_GetHashValue(hPtr)) != NULL) {
+ if (interp != NULL) {
+ Tcl_AppendElement(interp, zf->mntpt);
+ Tcl_AppendElement(interp, zf->name);
+ }
+ ++i;
+ }
+ hPtr = Tcl_NextHashEntry(&search);
+ }
+ if (interp == NULL) {
+ ret = (i > 0) ? TCL_OK : TCL_BREAK;
+ }
+ Unlock();
+ return ret;
+ }
+
+ if (data == NULL) {
+ Tcl_HashEntry *hPtr;
+
+ if (interp == NULL) {
+ Unlock();
+ return TCL_OK;
+ }
+ hPtr = Tcl_FindHashEntry(&ZipFS.zipHash, mntpt);
+ if (hPtr != NULL) {
+ if ((zf = Tcl_GetHashValue(hPtr)) != NULL) {
+ Tcl_SetObjResult(interp,Tcl_NewStringObj(zf->name, -1));
+ }
+ }
+ Unlock();
+ return TCL_OK;
+ }
+ Unlock();
+ zf = (ZipFile *) Tcl_AttemptAlloc(sizeof (*zf) + strlen(mntpt) + 1);
+ if (zf == NULL) {
+ if (interp != NULL) {
+ Tcl_AppendResult(interp, "out of memory", (char *) NULL);
+ }
+ return TCL_ERROR;
+ }
+ zf->is_membuf=1;
+ zf->length=datalen;
+ if(copy) {
+ zf->data=(unsigned char *)Tcl_AttemptAlloc(datalen);
+ if (zf->data == NULL) {
+ if (interp != NULL) {
+ Tcl_AppendResult(interp, "out of memory", (char *) NULL);
+ }
+ return TCL_ERROR;
+ }
+ memcpy(zf->data,data,datalen);
+ zf->tofree=zf->data;
+ } else {
+ zf->data=data;
+ zf->tofree=NULL;
+ }
+ if(ZipFS_Find_TOC(interp,0,zf)!=TCL_OK) {
+ return TCL_ERROR;
+ }
+ return ZipFS_Catalogue_Filesystem(interp,zf,mntpt,NULL,"Memory Buffer");
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * TclZipfs_Unmount --
+ *
+ * This procedure is invoked to unmount a given ZIP archive.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * A mounted ZIP archive file is unmounted, resources are free'd.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+int
+TclZipfs_Unmount(Tcl_Interp *interp, const char *mntpt)
+{
+ ZipFile *zf;
+ ZipEntry *z, *znext;
+ Tcl_HashEntry *hPtr;
+ Tcl_DString dsm;
+ int ret = TCL_OK, unmounted = 0;
+
+ WriteLock();
+ if (!ZipFS.initialized) goto done;
+ /*
+ * Mount point sometimes is a relative or otherwise denormalized path.
+ * But an absolute name is needed as mount point here.
+ */
+ Tcl_DStringInit(&dsm);
+ mntpt = CanonicalPath("", mntpt, &dsm, 1);
+
+ hPtr = Tcl_FindHashEntry(&ZipFS.zipHash, mntpt);
+
+ /* don't report error */
+ if (hPtr == NULL) goto done;
+
+ zf = (ZipFile *) Tcl_GetHashValue(hPtr);
+ if (zf->nopen > 0) {
+ ZIPFS_ERROR(interp,"filesystem is busy");
+ ret = TCL_ERROR;
+ goto done;
+ }
+ Tcl_DeleteHashEntry(hPtr);
+ for (z = zf->entries; z; z = znext) {
+ znext = z->next;
+ hPtr = Tcl_FindHashEntry(&ZipFS.fileHash, z->name);
+ if (hPtr) {
+ Tcl_DeleteHashEntry(hPtr);
+ }
+ if (z->data != NULL) {
+ Tcl_Free((char *) z->data);
+ }
+ Tcl_Free((char *) z);
+ }
+ ZipFSCloseArchive(interp, zf);
+ Tcl_Free((char *) zf);
+ unmounted = 1;
+done:
+ Unlock();
+ if (unmounted) {
+ Tcl_FSMountsChanged(NULL);
+ }
+ return ret;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSMountObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::mount" command.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * A ZIP archive file is mounted, resources are allocated.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSMountObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ if (objc > 4) {
+ Tcl_WrongNumArgs(interp, 1, objv,
+ "?mountpoint? ?zipfile? ?password?");
+ return TCL_ERROR;
+ }
+ return TclZipfs_Mount(interp, (objc > 1) ? Tcl_GetString(objv[1]) : NULL,
+ (objc > 2) ? Tcl_GetString(objv[2]) : NULL,
+ (objc > 3) ? Tcl_GetString(objv[3]) : NULL);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSMountObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::mount" command.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * A ZIP archive file is mounted, resources are allocated.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSMountBufferObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ const char *mntpt;
+ unsigned char *data;
+ int length;
+ if (objc > 4) {
+ Tcl_WrongNumArgs(interp, 1, objv, "?mountpoint? ?data?");
+ return TCL_ERROR;
+ }
+ if(objc<2) {
+ int i;
+ Tcl_HashEntry *hPtr;
+ Tcl_HashSearch search;
+ int ret = TCL_OK;
+ ZipFile *zf;
+
+ ReadLock();
+ i = 0;
+ hPtr = Tcl_FirstHashEntry(&ZipFS.zipHash, &search);
+ while (hPtr != NULL) {
+ if ((zf = (ZipFile *) Tcl_GetHashValue(hPtr)) != NULL) {
+ if (interp != NULL) {
+ Tcl_AppendElement(interp, zf->mntpt);
+ Tcl_AppendElement(interp, zf->name);
+ }
+ ++i;
+ }
+ hPtr = Tcl_NextHashEntry(&search);
+ }
+ if (interp == NULL) {
+ ret = (i > 0) ? TCL_OK : TCL_BREAK;
+ }
+ Unlock();
+ return ret;
+ }
+ mntpt=Tcl_GetString(objv[1]);
+ if(objc<3) {
+ Tcl_HashEntry *hPtr;
+ ZipFile *zf;
+
+ if (interp == NULL) {
+ Unlock();
+ return TCL_OK;
+ }
+ hPtr = Tcl_FindHashEntry(&ZipFS.zipHash, mntpt);
+ if (hPtr != NULL) {
+ if ((zf = Tcl_GetHashValue(hPtr)) != NULL) {
+ Tcl_SetObjResult(interp,Tcl_NewStringObj(zf->name, -1));
+ }
+ }
+ Unlock();
+ return TCL_OK;
+ }
+ data=Tcl_GetByteArrayFromObj(objv[2],&length);
+ return TclZipfs_Mount_Buffer(interp, mntpt,data,length,1);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSRootObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::root" command. It
+ * returns the root that all zipfs file systems are mounted under.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSRootObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ Tcl_SetObjResult(interp,Tcl_NewStringObj(ZIPFS_VOLUME, -1));
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSUnmountObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::unmount" command.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * A mounted ZIP archive file is unmounted, resources are free'd.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSUnmountObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ if (objc != 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "zipfile");
+ return TCL_ERROR;
+ }
+ return TclZipfs_Unmount(interp, Tcl_GetString(objv[1]));
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSMkKeyObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::mkkey" command.
+ * It produces a rotated password to be embedded into an image file.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSMkKeyObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ int len, i = 0;
+ char *pw, pwbuf[264];
+
+ if (objc != 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "password");
+ return TCL_ERROR;
+ }
+ pw = Tcl_GetString(objv[1]);
+ len = strlen(pw);
+ if (len == 0) {
+ return TCL_OK;
+ }
+ if ((len > 255) || (strchr(pw, 0xff) != NULL)) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("illegal password", -1));
+ return TCL_ERROR;
+ }
+ while (len > 0) {
+ int ch = pw[len - 1];
+
+ pwbuf[i] = (ch & 0x0f) | pwrot[(ch >> 4) & 0x0f];
+ i++;
+ len--;
+ }
+ pwbuf[i] = i;
+ ++i;
+ pwbuf[i++] = (char) ZIP_PASSWORD_END_SIG;
+ pwbuf[i++] = (char) (ZIP_PASSWORD_END_SIG >> 8);
+ pwbuf[i++] = (char) (ZIP_PASSWORD_END_SIG >> 16);
+ pwbuf[i++] = (char) (ZIP_PASSWORD_END_SIG >> 24);
+ pwbuf[i] = '\0';
+ Tcl_AppendResult(interp, pwbuf, (char *) NULL);
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipAddFile --
+ *
+ * This procedure is used by ZipFSMkZipOrImgCmd() to add a single
+ * file to the output ZIP archive file being written. A ZipEntry
+ * struct about the input file is added to the given fileHash table
+ * for later creation of the central ZIP directory.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * Input file is read and (compressed and) written to the output
+ * ZIP archive file.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipAddFile(
+ Tcl_Interp *interp, const char *path, const char *name,
+ Tcl_Channel out, const char *passwd,
+ char *buf, int bufsize, Tcl_HashTable *fileHash
+) {
+ Tcl_Channel in;
+ Tcl_HashEntry *hPtr;
+ ZipEntry *z;
+ z_stream stream;
+ const char *zpath;
+ int crc, flush, zpathlen;
+ size_t nbyte, nbytecompr, len, olen, align = 0;
+ Tcl_WideInt pos[3];
+ int mtime = 0, isNew, cmeth;
+ unsigned long keys[3], keys0[3];
+ char obuf[4096];
+
+ zpath = name;
+ while (zpath != NULL && zpath[0] == '/') {
+ zpath++;
+ }
+ if ((zpath == NULL) || (zpath[0] == '\0')) {
+ return TCL_OK;
+ }
+ zpathlen = strlen(zpath);
+ if (zpathlen + ZIP_CENTRAL_HEADER_LEN > bufsize) {
+ Tcl_AppendResult(interp, "path too long for \"", path, "\"", (char *) NULL);
+ return TCL_ERROR;
+ }
+ in = Tcl_OpenFileChannel(interp, path, "r", 0);
+ if (
+ (in == NULL)
+ || (Tcl_SetChannelOption(interp, in, "-translation", "binary") != TCL_OK)
+ || (Tcl_SetChannelOption(interp, in, "-encoding", "binary") != TCL_OK)
+ ) {
+#ifdef _WIN32
+ /* hopefully a directory */
+ if (strcmp("permission denied", Tcl_PosixError(interp)) == 0) {
+ Tcl_Close(interp, in);
+ return TCL_OK;
+ }
+#endif
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ } else {
+ Tcl_Obj *pathObj = Tcl_NewStringObj(path, -1);
+ Tcl_StatBuf statBuf;
+
+ Tcl_IncrRefCount(pathObj);
+ if (Tcl_FSStat(pathObj, &statBuf) != -1) {
+ mtime = statBuf.st_mtime;
+ }
+ Tcl_DecrRefCount(pathObj);
+ }
+ Tcl_ResetResult(interp);
+ crc = 0;
+ nbyte = nbytecompr = 0;
+ while ((len = Tcl_Read(in, buf, bufsize)) + 1 > 1) {
+ crc = crc32(crc, (unsigned char *) buf, len);
+ nbyte += len;
+ }
+ if (len == (size_t)-1) {
+ if (nbyte == 0) {
+ if (strcmp("illegal operation on a directory",
+ Tcl_PosixError(interp)) == 0) {
+ Tcl_Close(interp, in);
+ return TCL_OK;
+ }
+ }
+ Tcl_AppendResult(interp, "read error on \"", path, "\"",
+ (char *) NULL);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ if (Tcl_Seek(in, 0, SEEK_SET) == -1) {
+ Tcl_AppendResult(interp, "seek error on \"", path, "\"",
+ (char *) NULL);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ pos[0] = Tcl_Tell(out);
+ memset(buf, '\0', ZIP_LOCAL_HEADER_LEN);
+ memcpy(buf + ZIP_LOCAL_HEADER_LEN, zpath, zpathlen);
+ len = zpathlen + ZIP_LOCAL_HEADER_LEN;
+ if ((size_t)Tcl_Write(out, buf, len) != len) {
+wrerr:
+ Tcl_AppendResult(interp, "write error", (char *) NULL);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ if ((len + pos[0]) & 3) {
+ unsigned char abuf[8];
+
+ /*
+ * Align payload to next 4-byte boundary using a dummy extra
+ * entry similar to the zipalign tool from Android's SDK.
+ */
+ align = 4 + ((len + pos[0]) & 3);
+ zip_write_short(abuf, 0xffff);
+ zip_write_short(abuf + 2, align - 4);
+ zip_write_int(abuf + 4, 0x03020100);
+ if ((size_t)Tcl_Write(out, (const char *)abuf, align) != align) {
+ goto wrerr;
+ }
+ }
+ if (passwd != NULL) {
+ int i, ch, tmp;
+ unsigned char kvbuf[24];
+ Tcl_Obj *ret;
+
+ init_keys(passwd, keys, crc32tab);
+ for (i = 0; i < 12 - 2; i++) {
+ if (Tcl_EvalEx(interp, "expr int(rand() * 256) % 256", -1, 0) != TCL_OK) {
+ Tcl_AppendResult(interp, "PRNG error", (char *) NULL);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ ret = Tcl_GetObjResult(interp);
+ if (Tcl_GetIntFromObj(interp, ret, &ch) != TCL_OK) {
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ kvbuf[i + 12] = (unsigned char) zencode(keys, crc32tab, ch, tmp);
+ }
+ Tcl_ResetResult(interp);
+ init_keys(passwd, keys, crc32tab);
+ for (i = 0; i < 12 - 2; i++) {
+ kvbuf[i] = (unsigned char) zencode(keys, crc32tab, kvbuf[i + 12], tmp);
+ }
+ kvbuf[i++] = (unsigned char) zencode(keys, crc32tab, crc >> 16, tmp);
+ kvbuf[i++] = (unsigned char) zencode(keys, crc32tab, crc >> 24, tmp);
+ len = Tcl_Write(out, (char *) kvbuf, 12);
+ memset(kvbuf, 0, 24);
+ if (len != 12) {
+ Tcl_AppendResult(interp, "write error", (char *) NULL);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ memcpy(keys0, keys, sizeof (keys0));
+ nbytecompr += 12;
+ }
+ Tcl_Flush(out);
+ pos[2] = Tcl_Tell(out);
+ cmeth = ZIP_COMPMETH_DEFLATED;
+ memset(&stream, 0, sizeof (stream));
+ stream.zalloc = Z_NULL;
+ stream.zfree = Z_NULL;
+ stream.opaque = Z_NULL;
+ if (deflateInit2(&stream, 9, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY) != Z_OK) {
+ Tcl_AppendResult(interp, "compression init error on \"", path, "\"",
+ (char *) NULL);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ do {
+ len = Tcl_Read(in, buf, bufsize);
+ if (len == (size_t)-1) {
+ Tcl_AppendResult(interp, "read error on \"", path, "\"",
+ (char *) NULL);
+ deflateEnd(&stream);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ stream.avail_in = len;
+ stream.next_in = (unsigned char *) buf;
+ flush = Tcl_Eof(in) ? Z_FINISH : Z_NO_FLUSH;
+ do {
+ stream.avail_out = sizeof (obuf);
+ stream.next_out = (unsigned char *) obuf;
+ len = deflate(&stream, flush);
+ if (len == (size_t)Z_STREAM_ERROR) {
+ Tcl_AppendResult(interp, "deflate error on \"", path, "\"",
+ (char *) NULL);
+ deflateEnd(&stream);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ olen = sizeof (obuf) - stream.avail_out;
+ if (passwd != NULL) {
+ size_t i;
+ int tmp;
+
+ for (i = 0; i < olen; i++) {
+ obuf[i] = (char) zencode(keys, crc32tab, obuf[i], tmp);
+ }
+ }
+ if (olen && ((size_t)Tcl_Write(out, obuf, olen) != olen)) {
+ Tcl_AppendResult(interp, "write error", (char *) NULL);
+ deflateEnd(&stream);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ nbytecompr += olen;
+ } while (stream.avail_out == 0);
+ } while (flush != Z_FINISH);
+ deflateEnd(&stream);
+ Tcl_Flush(out);
+ pos[1] = Tcl_Tell(out);
+ if (nbyte - nbytecompr <= 0) {
+ /*
+ * Compressed file larger than input,
+ * write it again uncompressed.
+ */
+ if (Tcl_Seek(in, 0, SEEK_SET) != 0) {
+ goto seekErr;
+ }
+ if (Tcl_Seek(out, pos[2], SEEK_SET) != pos[2]) {
+seekErr:
+ Tcl_Close(interp, in);
+ Tcl_AppendResult(interp, "seek error", (char *) NULL);
+ return TCL_ERROR;
+ }
+ nbytecompr = (passwd != NULL) ? 12 : 0;
+ while (1) {
+ len = Tcl_Read(in, buf, bufsize);
+ if (len == (size_t)-1) {
+ Tcl_AppendResult(interp, "read error on \"", path, "\"",
+ (char *) NULL);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ } else if (len == 0) {
+ break;
+ }
+ if (passwd != NULL) {
+ size_t i;
+ int tmp;
+
+ for (i = 0; i < len; i++) {
+ buf[i] = (char) zencode(keys0, crc32tab, buf[i], tmp);
+ }
+ }
+ if ((size_t)Tcl_Write(out, buf, len) != len) {
+ Tcl_AppendResult(interp, "write error", (char *) NULL);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ nbytecompr += len;
+ }
+ cmeth = ZIP_COMPMETH_STORED;
+ Tcl_Flush(out);
+ pos[1] = Tcl_Tell(out);
+ Tcl_TruncateChannel(out, pos[1]);
+ }
+ Tcl_Close(interp, in);
+
+ z = (ZipEntry *) Tcl_Alloc(sizeof (*z));
+ z->name = NULL;
+ z->tnext = NULL;
+ z->depth = 0;
+ z->zipfile = NULL;
+ z->isdir = 0;
+ z->isenc = (passwd != NULL) ? 1 : 0;
+ z->offset = pos[0];
+ z->crc32 = crc;
+ z->timestamp = mtime;
+ z->nbyte = nbyte;
+ z->nbytecompr = nbytecompr;
+ z->cmeth = cmeth;
+ z->data = NULL;
+ hPtr = Tcl_CreateHashEntry(fileHash, zpath, &isNew);
+ if (!isNew) {
+ Tcl_AppendResult(interp, "non-unique path name \"", path, "\"",
+ (char *) NULL);
+ Tcl_Free((char *) z);
+ return TCL_ERROR;
+ } else {
+ Tcl_SetHashValue(hPtr, (ClientData) z);
+ z->name = Tcl_GetHashKey(fileHash, hPtr);
+ z->next = NULL;
+ }
+
+ /*
+ * Write final local header information.
+ */
+ zip_write_int(buf + ZIP_LOCAL_SIG_OFFS, ZIP_LOCAL_HEADER_SIG);
+ zip_write_short(buf + ZIP_LOCAL_VERSION_OFFS, ZIP_MIN_VERSION);
+ zip_write_short(buf + ZIP_LOCAL_FLAGS_OFFS, z->isenc);
+ zip_write_short(buf + ZIP_LOCAL_COMPMETH_OFFS, z->cmeth);
+ zip_write_short(buf + ZIP_LOCAL_MTIME_OFFS, ToDosTime(z->timestamp));
+ zip_write_short(buf + ZIP_LOCAL_MDATE_OFFS, ToDosDate(z->timestamp));
+ zip_write_int(buf + ZIP_LOCAL_CRC32_OFFS, z->crc32);
+ zip_write_int(buf + ZIP_LOCAL_COMPLEN_OFFS, z->nbytecompr);
+ zip_write_int(buf + ZIP_LOCAL_UNCOMPLEN_OFFS, z->nbyte);
+ zip_write_short(buf + ZIP_LOCAL_PATHLEN_OFFS, zpathlen);
+ zip_write_short(buf + ZIP_LOCAL_EXTRALEN_OFFS, align);
+ if (Tcl_Seek(out, pos[0], SEEK_SET) != pos[0]) {
+ Tcl_DeleteHashEntry(hPtr);
+ Tcl_Free((char *) z);
+ Tcl_AppendResult(interp, "seek error", (char *) NULL);
+ return TCL_ERROR;
+ }
+ if (Tcl_Write(out, buf, ZIP_LOCAL_HEADER_LEN) != ZIP_LOCAL_HEADER_LEN) {
+ Tcl_DeleteHashEntry(hPtr);
+ Tcl_Free((char *) z);
+ Tcl_AppendResult(interp, "write error", (char *) NULL);
+ return TCL_ERROR;
+ }
+ Tcl_Flush(out);
+ if (Tcl_Seek(out, pos[1], SEEK_SET) != pos[1]) {
+ Tcl_DeleteHashEntry(hPtr);
+ Tcl_Free((char *) z);
+ Tcl_AppendResult(interp, "seek error", (char *) NULL);
+ return TCL_ERROR;
+ }
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSMkZipOrImgObjCmd --
+ *
+ * This procedure is creates a new ZIP archive file or image file
+ * given output filename, input directory of files to be archived,
+ * optional password, and optional image to be prepended to the
+ * output ZIP archive file.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * A new ZIP archive file or image file is written.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSMkZipOrImgObjCmd(ClientData clientData, Tcl_Interp *interp,
+ int isImg, int isList, int objc, Tcl_Obj *const objv[])
+{
+ Tcl_Channel out;
+ int pwlen = 0, count, ret = TCL_ERROR, lobjc;
+ size_t len, slen = 0, i = 0;
+ Tcl_WideInt pos[3];
+ Tcl_Obj **lobjv, *list = NULL;
+ ZipEntry *z;
+ Tcl_HashEntry *hPtr;
+ Tcl_HashSearch search;
+ Tcl_HashTable fileHash;
+ char *strip = NULL, *pw = NULL, pwbuf[264], buf[4096];
+
+ if (isList) {
+ if ((objc < 3) || (objc > (isImg ? 5 : 4))) {
+ Tcl_WrongNumArgs(interp, 1, objv, isImg ?
+ "outfile inlist ?password infile?" :
+ "outfile inlist ?password?");
+ return TCL_ERROR;
+ }
+ } else {
+ if ((objc < 3) || (objc > (isImg ? 6 : 5))) {
+ Tcl_WrongNumArgs(interp, 1, objv, isImg ?
+ "outfile indir ?strip? ?password? ?infile?" :
+ "outfile indir ?strip? ?password?");
+ return TCL_ERROR;
+ }
+ }
+ pwbuf[0] = 0;
+ if (objc > (isList ? 3 : 4)) {
+ pw = Tcl_GetString(objv[isList ? 3 : 4]);
+ pwlen = strlen(pw);
+ if ((pwlen > 255) || (strchr(pw, 0xff) != NULL)) {
+ Tcl_SetObjResult(interp,
+ Tcl_NewStringObj("illegal password", -1));
+ return TCL_ERROR;
+ }
+ }
+ if (isList) {
+ list = objv[2];
+ Tcl_IncrRefCount(list);
+ } else {
+ Tcl_Obj *cmd[3];
+
+ cmd[1] = Tcl_NewStringObj("::tcl::zipfs::find", -1);
+ cmd[2] = objv[2];
+ cmd[0] = Tcl_NewListObj(2, cmd + 1);
+ Tcl_IncrRefCount(cmd[0]);
+ if (Tcl_EvalObjEx(interp, cmd[0], TCL_EVAL_DIRECT) != TCL_OK) {
+ Tcl_DecrRefCount(cmd[0]);
+ return TCL_ERROR;
+ }
+ Tcl_DecrRefCount(cmd[0]);
+ list = Tcl_GetObjResult(interp);
+ Tcl_IncrRefCount(list);
+ }
+ if (Tcl_ListObjGetElements(interp, list, &lobjc, &lobjv) != TCL_OK) {
+ Tcl_DecrRefCount(list);
+ return TCL_ERROR;
+ }
+ if (isList && (lobjc % 2)) {
+ Tcl_DecrRefCount(list);
+ Tcl_SetObjResult(interp,
+ Tcl_NewStringObj("need even number of elements", -1));
+ return TCL_ERROR;
+ }
+ if (lobjc == 0) {
+ Tcl_DecrRefCount(list);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("empty archive", -1));
+ return TCL_ERROR;
+ }
+ out = Tcl_OpenFileChannel(interp, Tcl_GetString(objv[1]), "w", 0755);
+ if (
+ (out == NULL)
+ || (Tcl_SetChannelOption(interp, out, "-translation", "binary") != TCL_OK)
+ || (Tcl_SetChannelOption(interp, out, "-encoding", "binary") != TCL_OK)
+ ) {
+ Tcl_DecrRefCount(list);
+ Tcl_Close(interp, out);
+ return TCL_ERROR;
+ }
+ if (pwlen <= 0) {
+ pw = NULL;
+ pwlen = 0;
+ }
+ if (isImg) {
+ ZipFile *zf, zf0;
+ int isMounted = 0;
+ const char *imgName;
+
+ if (isList) {
+ imgName = (objc > 4) ? Tcl_GetString(objv[4]) : Tcl_GetNameOfExecutable();
+ } else {
+ imgName = (objc > 5) ? Tcl_GetString(objv[5]) : Tcl_GetNameOfExecutable();
+ }
+ if (pwlen) {
+ i = 0;
+ len = pwlen;
+ while (len > 0) {
+ int ch = pw[len - 1];
+
+ pwbuf[i] = (ch & 0x0f) | pwrot[(ch >> 4) & 0x0f];
+ i++;
+ len--;
+ }
+ pwbuf[i] = i;
+ ++i;
+ pwbuf[i++] = (char) ZIP_PASSWORD_END_SIG;
+ pwbuf[i++] = (char) (ZIP_PASSWORD_END_SIG >> 8);
+ pwbuf[i++] = (char) (ZIP_PASSWORD_END_SIG >> 16);
+ pwbuf[i++] = (char) (ZIP_PASSWORD_END_SIG >> 24);
+ pwbuf[i] = '\0';
+ }
+ /* Check for mounted image */
+ WriteLock();
+ hPtr = Tcl_FirstHashEntry(&ZipFS.zipHash, &search);
+ while (hPtr != NULL) {
+ if ((zf = (ZipFile *) Tcl_GetHashValue(hPtr)) != NULL) {
+ if (strcmp(zf->name, imgName) == 0) {
+ isMounted = 1;
+ zf->nopen++;
+ break;
+ }
+ }
+ hPtr = Tcl_NextHashEntry(&search);
+ }
+ Unlock();
+ if (!isMounted) {
+ zf = &zf0;
+ }
+ if (isMounted ||
+ (ZipFSOpenArchive(interp, imgName, 0, zf) == TCL_OK)) {
+ if ((size_t)Tcl_Write(out, (char *) zf->data, zf->baseoffsp) != zf->baseoffsp) {
+ memset(pwbuf, 0, sizeof (pwbuf));
+ Tcl_DecrRefCount(list);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("write error", -1));
+ Tcl_Close(interp, out);
+ if (zf == &zf0) {
+ ZipFSCloseArchive(interp, zf);
+ } else {
+ WriteLock();
+ zf->nopen--;
+ Unlock();
+ }
+ return TCL_ERROR;
+ }
+ if (zf == &zf0) {
+ ZipFSCloseArchive(interp, zf);
+ } else {
+ WriteLock();
+ zf->nopen--;
+ Unlock();
+ }
+ } else {
+ size_t k;
+ int m, n;
+ Tcl_Channel in;
+ const char *errMsg = "seek error";
+
+ /*
+ * Fall back to read it as plain file which
+ * hopefully is a static tclsh or wish binary
+ * with proper zipfs infrastructure built in.
+ */
+ Tcl_ResetResult(interp);
+ in = Tcl_OpenFileChannel(interp, imgName, "r", 0644);
+ if (in == NULL) {
+ memset(pwbuf, 0, sizeof (pwbuf));
+ Tcl_DecrRefCount(list);
+ Tcl_Close(interp, out);
+ return TCL_ERROR;
+ }
+ Tcl_SetChannelOption(interp, in, "-translation", "binary");
+ Tcl_SetChannelOption(interp, in, "-encoding", "binary");
+ i = Tcl_Seek(in, 0, SEEK_END);
+ if (i == (size_t)-1) {
+cperr:
+ memset(pwbuf, 0, sizeof (pwbuf));
+ Tcl_DecrRefCount(list);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(errMsg, -1));
+ Tcl_Close(interp, out);
+ Tcl_Close(interp, in);
+ return TCL_ERROR;
+ }
+ Tcl_Seek(in, 0, SEEK_SET);
+ k = 0;
+ while (k < i) {
+ m = i - k;
+ if (m > (int)sizeof (buf)) {
+ m = (int)sizeof (buf);
+ }
+ n = Tcl_Read(in, buf, m);
+ if (n == -1) {
+ errMsg = "read error";
+ goto cperr;
+ } else if (n == 0) {
+ break;
+ }
+ m = Tcl_Write(out, buf, n);
+ if (m != n) {
+ errMsg = "write error";
+ goto cperr;
+ }
+ k += m;
+ }
+ Tcl_Close(interp, in);
+ }
+ len = strlen(pwbuf);
+ if (len > 0) {
+ i = Tcl_Write(out, pwbuf, len);
+ if (i != len) {
+ Tcl_DecrRefCount(list);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("write error", -1));
+ Tcl_Close(interp, out);
+ return TCL_ERROR;
+ }
+ }
+ memset(pwbuf, 0, sizeof (pwbuf));
+ Tcl_Flush(out);
+ }
+ Tcl_InitHashTable(&fileHash, TCL_STRING_KEYS);
+ pos[0] = Tcl_Tell(out);
+ if (!isList && (objc > 3)) {
+ strip = Tcl_GetString(objv[3]);
+ slen = strlen(strip);
+ }
+ for (i = 0; i < (size_t)lobjc; i += (isList ? 2 : 1)) {
+ const char *path, *name;
+
+ path = Tcl_GetString(lobjv[i]);
+ if (isList) {
+ name = Tcl_GetString(lobjv[i + 1]);
+ } else {
+ name = path;
+ if (slen > 0) {
+ len = strlen(name);
+ if ((len <= slen) || (strncmp(strip, name, slen) != 0)) {
+ continue;
+ }
+ name += slen;
+ }
+ }
+ while (name[0] == '/') {
+ ++name;
+ }
+ if (name[0] == '\0') {
+ continue;
+ }
+ if (ZipAddFile(interp, path, name, out, pw, buf, sizeof (buf),
+ &fileHash) != TCL_OK) {
+ goto done;
+ }
+ }
+ pos[1] = Tcl_Tell(out);
+ count = 0;
+ for (i = 0; i < (size_t)lobjc; i += (isList ? 2 : 1)) {
+ const char *path, *name;
+
+ path = Tcl_GetString(lobjv[i]);
+ if (isList) {
+ name = Tcl_GetString(lobjv[i + 1]);
+ } else {
+ name = path;
+ if (slen > 0) {
+ len = strlen(name);
+ if ((len <= slen) || (strncmp(strip, name, slen) != 0)) {
+ continue;
+ }
+ name += slen;
+ }
+ }
+ while (name[0] == '/') {
+ ++name;
+ }
+ if (name[0] == '\0') {
+ continue;
+ }
+ hPtr = Tcl_FindHashEntry(&fileHash, name);
+ if (hPtr == NULL) {
+ continue;
+ }
+ z = (ZipEntry *) Tcl_GetHashValue(hPtr);
+ len = strlen(z->name);
+ zip_write_int(buf + ZIP_CENTRAL_SIG_OFFS, ZIP_CENTRAL_HEADER_SIG);
+ zip_write_short(buf + ZIP_CENTRAL_VERSIONMADE_OFFS, ZIP_MIN_VERSION);
+ zip_write_short(buf + ZIP_CENTRAL_VERSION_OFFS, ZIP_MIN_VERSION);
+ zip_write_short(buf + ZIP_CENTRAL_FLAGS_OFFS, z->isenc ? 1 : 0);
+ zip_write_short(buf + ZIP_CENTRAL_COMPMETH_OFFS, z->cmeth);
+ zip_write_short(buf + ZIP_CENTRAL_MTIME_OFFS, ToDosTime(z->timestamp));
+ zip_write_short(buf + ZIP_CENTRAL_MDATE_OFFS, ToDosDate(z->timestamp));
+ zip_write_int(buf + ZIP_CENTRAL_CRC32_OFFS, z->crc32);
+ zip_write_int(buf + ZIP_CENTRAL_COMPLEN_OFFS, z->nbytecompr);
+ zip_write_int(buf + ZIP_CENTRAL_UNCOMPLEN_OFFS, z->nbyte);
+ zip_write_short(buf + ZIP_CENTRAL_PATHLEN_OFFS, len);
+ zip_write_short(buf + ZIP_CENTRAL_EXTRALEN_OFFS, 0);
+ zip_write_short(buf + ZIP_CENTRAL_FCOMMENTLEN_OFFS, 0);
+ zip_write_short(buf + ZIP_CENTRAL_DISKFILE_OFFS, 0);
+ zip_write_short(buf + ZIP_CENTRAL_IATTR_OFFS, 0);
+ zip_write_int(buf + ZIP_CENTRAL_EATTR_OFFS, 0);
+ zip_write_int(buf + ZIP_CENTRAL_LOCALHDR_OFFS, z->offset - pos[0]);
+ if (
+ (Tcl_Write(out, buf, ZIP_CENTRAL_HEADER_LEN) != ZIP_CENTRAL_HEADER_LEN)
+ || ((size_t)Tcl_Write(out, z->name, len) != len)
+ ) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("write error", -1));
+ goto done;
+ }
+ count++;
+ }
+ Tcl_Flush(out);
+ pos[2] = Tcl_Tell(out);
+ zip_write_int(buf + ZIP_CENTRAL_END_SIG_OFFS, ZIP_CENTRAL_END_SIG);
+ zip_write_short(buf + ZIP_CENTRAL_DISKNO_OFFS, 0);
+ zip_write_short(buf + ZIP_CENTRAL_DISKDIR_OFFS, 0);
+ zip_write_short(buf + ZIP_CENTRAL_ENTS_OFFS, count);
+ zip_write_short(buf + ZIP_CENTRAL_TOTALENTS_OFFS, count);
+ zip_write_int(buf + ZIP_CENTRAL_DIRSIZE_OFFS, pos[2] - pos[1]);
+ zip_write_int(buf + ZIP_CENTRAL_DIRSTART_OFFS, pos[1] - pos[0]);
+ zip_write_short(buf + ZIP_CENTRAL_COMMENTLEN_OFFS, 0);
+ if (Tcl_Write(out, buf, ZIP_CENTRAL_END_LEN) != ZIP_CENTRAL_END_LEN) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("write error", -1));
+ goto done;
+ }
+ Tcl_Flush(out);
+ ret = TCL_OK;
+done:
+ if (ret == TCL_OK) {
+ ret = Tcl_Close(interp, out);
+ } else {
+ Tcl_Close(interp, out);
+ }
+ Tcl_DecrRefCount(list);
+ hPtr = Tcl_FirstHashEntry(&fileHash, &search);
+ while (hPtr != NULL) {
+ z = (ZipEntry *) Tcl_GetHashValue(hPtr);
+ Tcl_Free((char *) z);
+ Tcl_DeleteHashEntry(hPtr);
+ hPtr = Tcl_NextHashEntry(&search);
+ }
+ Tcl_DeleteHashTable(&fileHash);
+ return ret;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSMkZipObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::mkzip" command.
+ * See description of ZipFSMkZipOrImgCmd().
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * See description of ZipFSMkZipOrImgCmd().
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSMkZipObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ return ZipFSMkZipOrImgObjCmd(clientData, interp, 0, 0, objc, objv);
+}
+
+static int
+ZipFSLMkZipObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ return ZipFSMkZipOrImgObjCmd(clientData, interp, 0, 1, objc, objv);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSZipFSOpenArchiveObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::mkimg" command.
+ * See description of ZipFSMkZipOrImgCmd().
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * See description of ZipFSMkZipOrImgCmd().
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSMkImgObjCmd(ClientData clientData, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[])
+{
+ return ZipFSMkZipOrImgObjCmd(clientData, interp, 1, 0, objc, objv);
+}
+
+static int
+ZipFSLMkImgObjCmd(ClientData clientData, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[])
+{
+ return ZipFSMkZipOrImgObjCmd(clientData, interp, 1, 1, objc, objv);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSCanonicalObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::canonical" command.
+ * It returns the canonical name for a file within zipfs
+ *
+ * Results:
+ * Always TCL_OK.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSCanonicalObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ char *mntpoint=NULL;
+ char *filename=NULL;
+ char *result;
+ Tcl_DString dPath;
+
+ if (objc != 2 && objc != 3 && objc!=4) {
+ Tcl_WrongNumArgs(interp, 1, objv, "?mntpnt? filename ?ZIPFS?");
+ return TCL_ERROR;
+ }
+ Tcl_DStringInit(&dPath);
+ if(objc==2) {
+ filename = Tcl_GetString(objv[1]);
+ result=CanonicalPath("",filename,&dPath,1);
+ } else if (objc==3) {
+ mntpoint = Tcl_GetString(objv[1]);
+ filename = Tcl_GetString(objv[2]);
+ result=CanonicalPath(mntpoint,filename,&dPath,1);
+ } else {
+ int zipfs=0;
+ if(Tcl_GetBooleanFromObj(interp,objv[3],&zipfs)) {
+ return TCL_ERROR;
+ }
+ mntpoint = Tcl_GetString(objv[1]);
+ filename = Tcl_GetString(objv[2]);
+ result=CanonicalPath(mntpoint,filename,&dPath,zipfs);
+ }
+ Tcl_SetObjResult(interp,Tcl_NewStringObj(result,-1));
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSExistsObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::exists" command.
+ * It tests for the existence of a file in the ZIP filesystem and
+ * places a boolean into the interp's result.
+ *
+ * Results:
+ * Always TCL_OK.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSExistsObjCmd(
+ ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]
+) {
+ char *filename;
+ int exists;
+ Tcl_DString ds;
+
+ if (objc != 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "filename");
+ return TCL_ERROR;
+ }
+
+ /* prepend ZIPFS_VOLUME to filename, eliding the final / */
+ filename = Tcl_GetStringFromObj(objv[1], 0);
+ Tcl_DStringInit(&ds);
+ Tcl_DStringAppend(&ds, ZIPFS_VOLUME, ZIPFS_VOLUME_LEN-1);
+ Tcl_DStringAppend(&ds, filename, -1);
+ filename = Tcl_DStringValue(&ds);
+
+ ReadLock();
+ exists = ZipFSLookup(filename) != NULL;
+ Unlock();
+
+ Tcl_SetObjResult(interp,Tcl_NewBooleanObj(exists));
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSInfoObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::info" command.
+ * On success, it returns a Tcl list made up of name of ZIP archive
+ * file, size uncompressed, size compressed, and archive offset of
+ * a file in the ZIP filesystem.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSInfoObjCmd(
+ ClientData clientData, Tcl_Interp *interp,int objc, Tcl_Obj *const objv[]
+) {
+ char *filename;
+ ZipEntry *z;
+
+ if (objc != 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "filename");
+ return TCL_ERROR;
+ }
+ filename = Tcl_GetStringFromObj(objv[1], 0);
+ ReadLock();
+ z = ZipFSLookup(filename);
+ if (z != NULL) {
+ Tcl_Obj *result = Tcl_GetObjResult(interp);
+
+ Tcl_ListObjAppendElement(interp, result,
+ Tcl_NewStringObj(z->zipfile->name, -1));
+ Tcl_ListObjAppendElement(interp, result, Tcl_NewWideIntObj(z->nbyte));
+ Tcl_ListObjAppendElement(interp, result, Tcl_NewWideIntObj(z->nbytecompr));
+ Tcl_ListObjAppendElement(interp, result, Tcl_NewWideIntObj(z->offset));
+ }
+ Unlock();
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSListObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::list" command.
+ * On success, it returns a Tcl list of files of the ZIP filesystem
+ * which match a search pattern (glob or regexp).
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSListObjCmd(
+ ClientData clientData, Tcl_Interp *interp,int objc, Tcl_Obj *const objv[]
+) {
+ char *pattern = NULL;
+ Tcl_RegExp regexp = NULL;
+ Tcl_HashEntry *hPtr;
+ Tcl_HashSearch search;
+ Tcl_Obj *result = Tcl_GetObjResult(interp);
+
+ if (objc > 3) {
+ Tcl_WrongNumArgs(interp, 1, objv, "?(-glob|-regexp)? ?pattern?");
+ return TCL_ERROR;
+ }
+ if (objc == 3) {
+ int n;
+ char *what = Tcl_GetStringFromObj(objv[1], &n);
+
+ if ((n >= 2) && (strncmp(what, "-glob", n) == 0)) {
+ pattern = Tcl_GetString(objv[2]);
+ } else if ((n >= 2) && (strncmp(what, "-regexp", n) == 0)) {
+ regexp = Tcl_RegExpCompile(interp, Tcl_GetString(objv[2]));
+ if (regexp == NULL) {
+ return TCL_ERROR;
+ }
+ } else {
+ Tcl_AppendResult(interp, "unknown option \"", what,"\"", (char *) NULL);
+ return TCL_ERROR;
+ }
+ } else if (objc == 2) {
+ pattern = Tcl_GetStringFromObj(objv[1], 0);
+ }
+ ReadLock();
+ if (pattern != NULL) {
+ for (
+ hPtr = Tcl_FirstHashEntry(&ZipFS.fileHash, &search);
+ hPtr != NULL;
+ hPtr = Tcl_NextHashEntry(&search)
+ ) {
+ ZipEntry *z = (ZipEntry *) Tcl_GetHashValue(hPtr);
+
+ if (Tcl_StringMatch(z->name, pattern)) {
+ Tcl_ListObjAppendElement(interp, result,Tcl_NewStringObj(z->name, -1));
+ }
+ }
+ } else if (regexp != NULL) {
+ for (
+ hPtr = Tcl_FirstHashEntry(&ZipFS.fileHash, &search);
+ hPtr != NULL;
+ hPtr = Tcl_NextHashEntry(&search)
+ ) {
+ ZipEntry *z = (ZipEntry *) Tcl_GetHashValue(hPtr);
+ if (Tcl_RegExpExec(interp, regexp, z->name, z->name)) {
+ Tcl_ListObjAppendElement(interp, result,Tcl_NewStringObj(z->name, -1));
+ }
+ }
+ } else {
+ for (
+ hPtr = Tcl_FirstHashEntry(&ZipFS.fileHash, &search);
+ hPtr != NULL;
+ hPtr = Tcl_NextHashEntry(&search)
+ ) {
+ ZipEntry *z = (ZipEntry *) Tcl_GetHashValue(hPtr);
+
+ Tcl_ListObjAppendElement(interp, result, Tcl_NewStringObj(z->name, -1));
+ }
+ }
+ Unlock();
+ return TCL_OK;
+}
+
+#ifdef _WIN32
+#define LIBRARY_SIZE 64
+static int
+ToUtf(
+ const WCHAR *wSrc,
+ char *dst)
+{
+ char *start;
+
+ start = dst;
+ while (*wSrc != '\0') {
+ dst += Tcl_UniCharToUtf(*wSrc, dst);
+ wSrc++;
+ }
+ *dst = '\0';
+ return (int) (dst - start);
+}
+#endif
+
+Tcl_Obj *TclZipfs_TclLibrary(void) {
+ if(zipfs_literal_tcl_library) {
+ return Tcl_NewStringObj(zipfs_literal_tcl_library,-1);
+ } else {
+ Tcl_Obj *vfsinitscript;
+ int found=0;
+#ifdef _WIN32
+ HMODULE hModule = TclWinGetTclInstance();
+ WCHAR wName[MAX_PATH + LIBRARY_SIZE];
+ char dllname[(MAX_PATH + LIBRARY_SIZE) * TCL_UTF_MAX];
+#endif
+ /* Look for the library file system within the executable */
+ vfsinitscript=Tcl_NewStringObj(ZIPFS_APP_MOUNT "/tcl_library/init.tcl",-1);
+ Tcl_IncrRefCount(vfsinitscript);
+ found=Tcl_FSAccess(vfsinitscript,F_OK);
+ Tcl_DecrRefCount(vfsinitscript);
+ if(found==TCL_OK) {
+ zipfs_literal_tcl_library=ZIPFS_APP_MOUNT "/tcl_library";
+ return Tcl_NewStringObj(zipfs_literal_tcl_library,-1);
+ }
+#ifdef _WIN32
+ if (GetModuleFileNameW(hModule, wName, MAX_PATH) == 0) {
+ GetModuleFileNameA(hModule, dllname, MAX_PATH);
+ } else {
+ ToUtf(wName, dllname);
+ }
+ /* Mount zip file and dll before releasing to search */
+ if(TclZipfs_AppHook_FindTclInit(dllname)==TCL_OK) {
+ return Tcl_NewStringObj(zipfs_literal_tcl_library,-1);
+ }
+#else
+#ifdef CFG_RUNTIME_DLLFILE
+ /* Mount zip file and dll before releasing to search */
+ if(TclZipfs_AppHook_FindTclInit(CFG_RUNTIME_LIBDIR "/" CFG_RUNTIME_DLLFILE)==TCL_OK) {
+ return Tcl_NewStringObj(zipfs_literal_tcl_library,-1);
+ }
+#endif
+#endif
+#ifdef CFG_RUNTIME_ZIPFILE
+ if(TclZipfs_AppHook_FindTclInit(CFG_RUNTIME_LIBDIR "/" CFG_RUNTIME_ZIPFILE)==TCL_OK) {
+ return Tcl_NewStringObj(zipfs_literal_tcl_library,-1);
+ }
+ if(TclZipfs_AppHook_FindTclInit(CFG_RUNTIME_SCRDIR "/" CFG_RUNTIME_ZIPFILE)==TCL_OK) {
+ return Tcl_NewStringObj(zipfs_literal_tcl_library,-1);
+ }
+#endif
+ }
+ if(zipfs_literal_tcl_library) {
+ return Tcl_NewStringObj(zipfs_literal_tcl_library,-1);
+ }
+ return NULL;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipFSTclLibraryObjCmd --
+ *
+ * This procedure is invoked to process the "zipfs::root" command. It
+ * returns the root that all zipfs file systems are mounted under.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipFSTclLibraryObjCmd(ClientData clientData, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[])
+{
+ Tcl_Obj *pResult;
+
+ pResult=TclZipfs_TclLibrary();
+ if(!pResult) {
+ pResult=Tcl_NewObj();
+ }
+ Tcl_SetObjResult(interp,pResult);
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipChannelClose --
+ *
+ * This function is called to close a channel.
+ *
+ * Results:
+ * Always TCL_OK.
+ *
+ * Side effects:
+ * Resources are free'd.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipChannelClose(ClientData instanceData, Tcl_Interp *interp)
+{
+ ZipChannel *info = (ZipChannel *) instanceData;
+
+ if (info->iscompr && (info->ubuf != NULL)) {
+ Tcl_Free((char *) info->ubuf);
+ info->ubuf = NULL;
+ }
+ if (info->isenc) {
+ info->isenc = 0;
+ memset(info->keys, 0, sizeof (info->keys));
+ }
+ if (info->iswr) {
+ ZipEntry *z = info->zipentry;
+ unsigned char *newdata;
+
+ newdata = (unsigned char *) Tcl_AttemptRealloc((char *) info->ubuf, info->nread);
+ if (newdata != NULL) {
+ if (z->data != NULL) {
+ Tcl_Free((char *) z->data);
+ }
+ z->data = newdata;
+ z->nbyte = z->nbytecompr = info->nbyte;
+ z->cmeth = ZIP_COMPMETH_STORED;
+ z->timestamp = time(NULL);
+ z->isdir = 0;
+ z->isenc = 0;
+ z->offset = 0;
+ z->crc32 = 0;
+ } else {
+ Tcl_Free((char *) info->ubuf);
+ }
+ }
+ WriteLock();
+ info->zipfile->nopen--;
+ Unlock();
+ Tcl_Free((char *) info);
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipChannelRead --
+ *
+ * This function is called to read data from channel.
+ *
+ * Results:
+ * Number of bytes read or -1 on error with error number set.
+ *
+ * Side effects:
+ * Data is read and file pointer is advanced.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipChannelRead(ClientData instanceData, char *buf, int toRead, int *errloc)
+{
+ ZipChannel *info = (ZipChannel *) instanceData;
+ unsigned long nextpos;
+
+ if (info->isdir < 0) {
+ /*
+ * Special case: when executable combined with ZIP archive file
+ * read data in front of ZIP, i.e. the executable itself.
+ */
+ nextpos = info->nread + toRead;
+ if (nextpos > info->zipfile->baseoffs) {
+ toRead = info->zipfile->baseoffs - info->nread;
+ nextpos = info->zipfile->baseoffs;
+ }
+ if (toRead == 0) {
+ return 0;
+ }
+ memcpy(buf, info->zipfile->data, toRead);
+ info->nread = nextpos;
+ *errloc = 0;
+ return toRead;
+ }
+ if (info->isdir) {
+ *errloc = EISDIR;
+ return -1;
+ }
+ nextpos = info->nread + toRead;
+ if (nextpos > info->nbyte) {
+ toRead = info->nbyte - info->nread;
+ nextpos = info->nbyte;
+ }
+ if (toRead == 0) {
+ return 0;
+ }
+ if (info->isenc) {
+ int i, ch;
+
+ for (i = 0; i < toRead; i++) {
+ ch = info->ubuf[i + info->nread];
+ buf[i] = zdecode(info->keys, crc32tab, ch);
+ }
+ } else {
+ memcpy(buf, info->ubuf + info->nread, toRead);
+ }
+ info->nread = nextpos;
+ *errloc = 0;
+ return toRead;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipChannelWrite --
+ *
+ * This function is called to write data into channel.
+ *
+ * Results:
+ * Number of bytes written or -1 on error with error number set.
+ *
+ * Side effects:
+ * Data is written and file pointer is advanced.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipChannelWrite(ClientData instanceData, const char *buf,
+ int toWrite, int *errloc)
+{
+ ZipChannel *info = (ZipChannel *) instanceData;
+ unsigned long nextpos;
+
+ if (!info->iswr) {
+ *errloc = EINVAL;
+ return -1;
+ }
+ nextpos = info->nread + toWrite;
+ if (nextpos > info->nmax) {
+ toWrite = info->nmax - info->nread;
+ nextpos = info->nmax;
+ }
+ if (toWrite == 0) {
+ return 0;
+ }
+ memcpy(info->ubuf + info->nread, buf, toWrite);
+ info->nread = nextpos;
+ if (info->nread > info->nbyte) {
+ info->nbyte = info->nread;
+ }
+ *errloc = 0;
+ return toWrite;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipChannelSeek --
+ *
+ * This function is called to position file pointer of channel.
+ *
+ * Results:
+ * New file position or -1 on error with error number set.
+ *
+ * Side effects:
+ * File pointer is repositioned according to offset and mode.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipChannelSeek(ClientData instanceData, long offset, int mode, int *errloc)
+{
+ ZipChannel *info = (ZipChannel *) instanceData;
+ unsigned long end;
+
+ if (!info->iswr && (info->isdir < 0)) {
+ /*
+ * Special case: when executable combined with ZIP archive file,
+ * seek within front of ZIP, i.e. the executable itself.
+ */
+ end = info->zipfile->baseoffs;
+ } else if (info->isdir) {
+ *errloc = EINVAL;
+ return -1;
+ } else {
+ end = info->nbyte;
+ }
+ switch (mode) {
+ case SEEK_CUR:
+ offset += info->nread;
+ break;
+ case SEEK_END:
+ offset += end;
+ break;
+ case SEEK_SET:
+ break;
+ default:
+ *errloc = EINVAL;
+ return -1;
+ }
+ if (offset < 0) {
+ *errloc = EINVAL;
+ return -1;
+ }
+ if (info->iswr) {
+ if ((unsigned long) offset > info->nmax) {
+ *errloc = EINVAL;
+ return -1;
+ }
+ if ((unsigned long) offset > info->nbyte) {
+ info->nbyte = offset;
+ }
+ } else if ((unsigned long) offset > end) {
+ *errloc = EINVAL;
+ return -1;
+ }
+ info->nread = (unsigned long) offset;
+ return info->nread;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipChannelWatchChannel --
+ *
+ * This function is called for event notifications on channel.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static void
+ZipChannelWatchChannel(ClientData instanceData, int mask)
+{
+ return;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipChannelGetFile --
+ *
+ * This function is called to retrieve OS handle for channel.
+ *
+ * Results:
+ * Always TCL_ERROR since there's never an OS handle for a
+ * file within a ZIP archive.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipChannelGetFile(
+ ClientData instanceData, int direction,ClientData *handlePtr
+) {
+ return TCL_ERROR;
+}
+
+/*
+ * The channel type/driver definition used for ZIP archive members.
+ */
+
+static Tcl_ChannelType ZipChannelType = {
+ "zip", /* Type name. */
+#ifdef TCL_CHANNEL_VERSION_4
+ TCL_CHANNEL_VERSION_4,
+ ZipChannelClose, /* Close channel, clean instance data */
+ ZipChannelRead, /* Handle read request */
+ ZipChannelWrite, /* Handle write request */
+ ZipChannelSeek, /* Move location of access point, NULL'able */
+ NULL, /* Set options, NULL'able */
+ NULL, /* Get options, NULL'able */
+ ZipChannelWatchChannel, /* Initialize notifier */
+ ZipChannelGetFile, /* Get OS handle from the channel */
+ NULL, /* 2nd version of close channel, NULL'able */
+ NULL, /* Set blocking mode for raw channel, NULL'able */
+ NULL, /* Function to flush channel, NULL'able */
+ NULL, /* Function to handle event, NULL'able */
+ NULL, /* Wide seek function, NULL'able */
+ NULL, /* Thread action function, NULL'able */
+#else
+ NULL, /* Set blocking/nonblocking behaviour, NULL'able */
+ ZipChannelClose, /* Close channel, clean instance data */
+ ZipChannelRead, /* Handle read request */
+ ZipChannelWrite, /* Handle write request */
+ ZipChannelSeek, /* Move location of access point, NULL'able */
+ NULL, /* Set options, NULL'able */
+ NULL, /* Get options, NULL'able */
+ ZipChannelWatchChannel, /* Initialize notifier */
+ ZipChannelGetFile, /* Get OS handle from the channel */
+#endif
+};
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipChannelOpen --
+ *
+ * This function opens a Tcl_Channel on a file from a mounted ZIP
+ * archive according to given open mode.
+ *
+ * Results:
+ * Tcl_Channel on success, or NULL on error.
+ *
+ * Side effects:
+ * Memory is allocated, the file from the ZIP archive is uncompressed.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static Tcl_Channel
+ZipChannelOpen(Tcl_Interp *interp, char *filename, int mode, int permissions)
+{
+ ZipEntry *z;
+ ZipChannel *info;
+ int i, ch, trunc, wr, flags = 0;
+ char cname[128];
+
+ if (
+ (mode & O_APPEND)
+ || ((ZipFS.wrmax <= 0) && (mode & (O_WRONLY | O_RDWR)))
+ ) {
+ if (interp != NULL) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("unsupported open mode", -1));
+ }
+ return NULL;
+ }
+ WriteLock();
+ z = ZipFSLookup(filename);
+ if (z == NULL) {
+ if (interp != NULL) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("file not found", -1));
+ Tcl_AppendResult(interp, " \"", filename, "\"", NULL);
+ }
+ goto error;
+ }
+ trunc = (mode & O_TRUNC) != 0;
+ wr = (mode & (O_WRONLY | O_RDWR)) != 0;
+ if ((z->cmeth != ZIP_COMPMETH_STORED) && (z->cmeth != ZIP_COMPMETH_DEFLATED)) {
+ ZIPFS_ERROR(interp,"unsupported compression method");
+ goto error;
+ }
+ if (wr && z->isdir) {
+ ZIPFS_ERROR(interp,"unsupported file type");
+ goto error;
+ }
+ if (!trunc) {
+ flags |= TCL_READABLE;
+ if (z->isenc && (z->zipfile->pwbuf[0] == 0)) {
+ ZIPFS_ERROR(interp,"decryption failed");
+ goto error;
+ } else if (wr && (z->data == NULL) && (z->nbyte > ZipFS.wrmax)) {
+ ZIPFS_ERROR(interp,"file too large");
+ goto error;
+ }
+ } else {
+ flags = TCL_WRITABLE;
+ }
+ info = (ZipChannel *) Tcl_AttemptAlloc(sizeof (*info));
+ if (info == NULL) {
+ ZIPFS_ERROR(interp,"out of memory");
+ goto error;
+ }
+ info->zipfile = z->zipfile;
+ info->zipentry = z;
+ info->nread = 0;
+ if (wr) {
+ flags |= TCL_WRITABLE;
+ info->iswr = 1;
+ info->isdir = 0;
+ info->nmax = ZipFS.wrmax;
+ info->iscompr = 0;
+ info->isenc = 0;
+ info->ubuf = (unsigned char *) Tcl_AttemptAlloc(info->nmax);
+ if (info->ubuf == NULL) {
+merror0:
+ if (info->ubuf != NULL) {
+ Tcl_Free((char *) info->ubuf);
+ }
+ Tcl_Free((char *) info);
+ ZIPFS_ERROR(interp,"out of memory");
+ goto error;
+ }
+ memset(info->ubuf, 0, info->nmax);
+ if (trunc) {
+ info->nbyte = 0;
+ } else {
+ if (z->data != NULL) {
+ unsigned int j = z->nbyte;
+
+ if (j > info->nmax) {
+ j = info->nmax;
+ }
+ memcpy(info->ubuf, z->data, j);
+ info->nbyte = j;
+ } else {
+ unsigned char *zbuf = z->zipfile->data + z->offset;
+
+ if (z->isenc) {
+ int len = z->zipfile->pwbuf[0];
+ char pwbuf[260];
+
+ for (i = 0; i < len; i++) {
+ ch = z->zipfile->pwbuf[len - i];
+ pwbuf[i] = (ch & 0x0f) | pwrot[(ch >> 4) & 0x0f];
+ }
+ pwbuf[i] = '\0';
+ init_keys(pwbuf, info->keys, crc32tab);
+ memset(pwbuf, 0, sizeof (pwbuf));
+ for (i = 0; i < 12; i++) {
+ ch = info->ubuf[i];
+ zdecode(info->keys, crc32tab, ch);
+ }
+ zbuf += i;
+ }
+ if (z->cmeth == ZIP_COMPMETH_DEFLATED) {
+ z_stream stream;
+ int err;
+ unsigned char *cbuf = NULL;
+
+ memset(&stream, 0, sizeof (stream));
+ stream.zalloc = Z_NULL;
+ stream.zfree = Z_NULL;
+ stream.opaque = Z_NULL;
+ stream.avail_in = z->nbytecompr;
+ if (z->isenc) {
+ unsigned int j;
+
+ stream.avail_in -= 12;
+ cbuf = (unsigned char *)
+ Tcl_AttemptAlloc(stream.avail_in);
+ if (cbuf == NULL) {
+ goto merror0;
+ }
+ for (j = 0; j < stream.avail_in; j++) {
+ ch = info->ubuf[j];
+ cbuf[j] = zdecode(info->keys, crc32tab, ch);
+ }
+ stream.next_in = cbuf;
+ } else {
+ stream.next_in = zbuf;
+ }
+ stream.next_out = info->ubuf;
+ stream.avail_out = info->nmax;
+ if (inflateInit2(&stream, -15) != Z_OK) goto cerror0;
+ err = inflate(&stream, Z_SYNC_FLUSH);
+ inflateEnd(&stream);
+ if ((err == Z_STREAM_END) || ((err == Z_OK) && (stream.avail_in == 0))) {
+ if (cbuf != NULL) {
+ memset(info->keys, 0, sizeof (info->keys));
+ Tcl_Free((char *) cbuf);
+ }
+ goto wrapchan;
+ }
+cerror0:
+ if (cbuf != NULL) {
+ memset(info->keys, 0, sizeof (info->keys));
+ Tcl_Free((char *) cbuf);
+ }
+ if (info->ubuf != NULL) {
+ Tcl_Free((char *) info->ubuf);
+ }
+ Tcl_Free((char *) info);
+ ZIPFS_ERROR(interp,"decompression error");
+ goto error;
+ } else if (z->isenc) {
+ for (i = 0; i < z->nbyte - 12; i++) {
+ ch = zbuf[i];
+ info->ubuf[i] = zdecode(info->keys, crc32tab, ch);
+ }
+ } else {
+ memcpy(info->ubuf, zbuf, z->nbyte);
+ }
+ memset(info->keys, 0, sizeof (info->keys));
+ goto wrapchan;
+ }
+ }
+ } else if (z->data != NULL) {
+ flags |= TCL_READABLE;
+ info->iswr = 0;
+ info->iscompr = 0;
+ info->isdir = 0;
+ info->isenc = 0;
+ info->nbyte = z->nbyte;
+ info->nmax = 0;
+ info->ubuf = z->data;
+ } else {
+ flags |= TCL_READABLE;
+ info->iswr = 0;
+ info->iscompr = z->cmeth == ZIP_COMPMETH_DEFLATED;
+ info->ubuf = z->zipfile->data + z->offset;
+ info->isdir = z->isdir;
+ info->isenc = z->isenc;
+ info->nbyte = z->nbyte;
+ info->nmax = 0;
+ if (info->isenc) {
+ int len = z->zipfile->pwbuf[0];
+ char pwbuf[260];
+
+ for (i = 0; i < len; i++) {
+ ch = z->zipfile->pwbuf[len - i];
+ pwbuf[i] = (ch & 0x0f) | pwrot[(ch >> 4) & 0x0f];
+ }
+ pwbuf[i] = '\0';
+ init_keys(pwbuf, info->keys, crc32tab);
+ memset(pwbuf, 0, sizeof (pwbuf));
+ for (i = 0; i < 12; i++) {
+ ch = info->ubuf[i];
+ zdecode(info->keys, crc32tab, ch);
+ }
+ info->ubuf += i;
+ }
+ if (info->iscompr) {
+ z_stream stream;
+ int err;
+ unsigned char *ubuf = NULL;
+ unsigned int j;
+
+ memset(&stream, 0, sizeof (stream));
+ stream.zalloc = Z_NULL;
+ stream.zfree = Z_NULL;
+ stream.opaque = Z_NULL;
+ stream.avail_in = z->nbytecompr;
+ if (info->isenc) {
+ stream.avail_in -= 12;
+ ubuf = (unsigned char *) Tcl_AttemptAlloc(stream.avail_in);
+ if (ubuf == NULL) {
+ info->ubuf = NULL;
+ goto merror;
+ }
+ for (j = 0; j < stream.avail_in; j++) {
+ ch = info->ubuf[j];
+ ubuf[j] = zdecode(info->keys, crc32tab, ch);
+ }
+ stream.next_in = ubuf;
+ } else {
+ stream.next_in = info->ubuf;
+ }
+ stream.next_out = info->ubuf = (unsigned char *) Tcl_AttemptAlloc(info->nbyte);
+ if (info->ubuf == NULL) {
+merror:
+ if (ubuf != NULL) {
+ info->isenc = 0;
+ memset(info->keys, 0, sizeof (info->keys));
+ Tcl_Free((char *) ubuf);
+ }
+ Tcl_Free((char *) info);
+ if (interp != NULL) {
+ Tcl_SetObjResult(interp,
+ Tcl_NewStringObj("out of memory", -1));
+ }
+ goto error;
+ }
+ stream.avail_out = info->nbyte;
+ if (inflateInit2(&stream, -15) != Z_OK) {
+ goto cerror;
+ }
+ err = inflate(&stream, Z_SYNC_FLUSH);
+ inflateEnd(&stream);
+ if ((err == Z_STREAM_END) || ((err == Z_OK) && (stream.avail_in == 0))) {
+ if (ubuf != NULL) {
+ info->isenc = 0;
+ memset(info->keys, 0, sizeof (info->keys));
+ Tcl_Free((char *) ubuf);
+ }
+ goto wrapchan;
+ }
+cerror:
+ if (ubuf != NULL) {
+ info->isenc = 0;
+ memset(info->keys, 0, sizeof (info->keys));
+ Tcl_Free((char *) ubuf);
+ }
+ if (info->ubuf != NULL) {
+ Tcl_Free((char *) info->ubuf);
+ }
+ Tcl_Free((char *) info);
+ ZIPFS_ERROR(interp,"decompression error");
+ goto error;
+ }
+ }
+wrapchan:
+ sprintf(cname, "zipfs_%" TCL_LL_MODIFIER "x_%d", z->offset, ZipFS.idCount++);
+ z->zipfile->nopen++;
+ Unlock();
+ return Tcl_CreateChannel(&ZipChannelType, cname, (ClientData) info, flags);
+
+error:
+ Unlock();
+ return NULL;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipEntryStat --
+ *
+ * This function implements the ZIP filesystem specific version
+ * of the library version of stat.
+ *
+ * Results:
+ * See stat documentation.
+ *
+ * Side effects:
+ * See stat documentation.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipEntryStat(char *path, Tcl_StatBuf *buf)
+{
+ ZipEntry *z;
+ int ret = -1;
+
+ ReadLock();
+ z = ZipFSLookup(path);
+ if (z == NULL) goto done;
+
+ memset(buf, 0, sizeof (Tcl_StatBuf));
+ if (z->isdir) {
+ buf->st_mode = S_IFDIR | 0555;
+ } else {
+ buf->st_mode = S_IFREG | 0555;
+ }
+ buf->st_size = z->nbyte;
+ buf->st_mtime = z->timestamp;
+ buf->st_ctime = z->timestamp;
+ buf->st_atime = z->timestamp;
+ ret = 0;
+done:
+ Unlock();
+ return ret;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * ZipEntryAccess --
+ *
+ * This function implements the ZIP filesystem specific version
+ * of the library version of access.
+ *
+ * Results:
+ * See access documentation.
+ *
+ * Side effects:
+ * See access documentation.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+ZipEntryAccess(char *path, int mode)
+{
+ ZipEntry *z;
+
+ if (mode & 3) return -1;
+ ReadLock();
+ z = ZipFSLookup(path);
+ Unlock();
+ return (z != NULL) ? 0 : -1;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSOpenFileChannelProc --
+ *
+ * Results:
+ *
+ * Side effects:
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static Tcl_Channel
+Zip_FSOpenFileChannelProc(Tcl_Interp *interp, Tcl_Obj *pathPtr,
+ int mode, int permissions)
+{
+ int len;
+ if (!(pathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr))) return NULL;
+ return ZipChannelOpen(interp, Tcl_GetStringFromObj(pathPtr, &len), mode, permissions);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSStatProc --
+ *
+ * This function implements the ZIP filesystem specific version
+ * of the library version of stat.
+ *
+ * Results:
+ * See stat documentation.
+ *
+ * Side effects:
+ * See stat documentation.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+Zip_FSStatProc(Tcl_Obj *pathPtr, Tcl_StatBuf *buf)
+{
+ int len;
+ if (!(pathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr))) return -1;
+ return ZipEntryStat(Tcl_GetStringFromObj(pathPtr, &len), buf);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSAccessProc --
+ *
+ * This function implements the ZIP filesystem specific version
+ * of the library version of access.
+ *
+ * Results:
+ * See access documentation.
+ *
+ * Side effects:
+ * See access documentation.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+Zip_FSAccessProc(Tcl_Obj *pathPtr, int mode)
+{
+ int len;
+ if (!(pathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr))) return -1;
+ return ZipEntryAccess(Tcl_GetStringFromObj(pathPtr, &len), mode);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSFilesystemSeparatorProc --
+ *
+ * This function returns the separator to be used for a given path. The
+ * object returned should have a refCount of zero
+ *
+ * Results:
+ * A Tcl object, with a refCount of zero. If the caller needs to retain a
+ * reference to the object, it should call Tcl_IncrRefCount, and should
+ * otherwise free the object.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static Tcl_Obj *
+Zip_FSFilesystemSeparatorProc(Tcl_Obj *pathPtr)
+{
+ return Tcl_NewStringObj("/", -1);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSMatchInDirectoryProc --
+ *
+ * This routine is used by the globbing code to search a directory for
+ * all files which match a given pattern.
+ *
+ * Results:
+ * The return value is a standard Tcl result indicating whether an
+ * error occurred in globbing. Errors are left in interp, good
+ * results are lappend'ed to resultPtr (which must be a valid object).
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+Zip_FSMatchInDirectoryProc(Tcl_Interp* interp, Tcl_Obj *result,
+ Tcl_Obj *pathPtr, const char *pattern,
+ Tcl_GlobTypeData *types)
+{
+ Tcl_HashEntry *hPtr;
+ Tcl_HashSearch search;
+ Tcl_Obj *normPathPtr;
+ int scnt, l, dirOnly = -1, prefixLen, strip = 0;
+ size_t len;
+ char *pat, *prefix, *path;
+ Tcl_DString dsPref;
+
+ if (!(normPathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr))) return -1;
+
+ if (types != NULL) {
+ dirOnly = (types->type & TCL_GLOB_TYPE_DIR) == TCL_GLOB_TYPE_DIR;
+ }
+
+ /* the prefix that gets prepended to results */
+ prefix = Tcl_GetStringFromObj(pathPtr, &prefixLen);
+
+ /* the (normalized) path we're searching */
+ path = Tcl_GetString(normPathPtr);
+ len = normPathPtr->length;
+
+ Tcl_DStringInit(&dsPref);
+ Tcl_DStringAppend(&dsPref, prefix, prefixLen);
+
+ if (strcmp(prefix, path) == 0) {
+ prefix = NULL;
+ } else {
+ strip = len + 1;
+ }
+ if (prefix != NULL) {
+ Tcl_DStringAppend(&dsPref, "/", 1);
+ prefixLen++;
+ prefix = Tcl_DStringValue(&dsPref);
+ }
+ ReadLock();
+ if ((types != NULL) && (types->type == TCL_GLOB_TYPE_MOUNT)) {
+ l = CountSlashes(path);
+ if (path[len - 1] == '/') {
+ len--;
+ } else {
+ l++;
+ }
+ if ((pattern == NULL) || (pattern[0] == '\0')) {
+ pattern = "*";
+ }
+ hPtr = Tcl_FirstHashEntry(&ZipFS.zipHash, &search);
+ while (hPtr != NULL) {
+ ZipFile *zf = (ZipFile *) Tcl_GetHashValue(hPtr);
+
+ if (zf->mntptlen == 0) {
+ ZipEntry *z = zf->topents;
+ while (z != NULL) {
+ size_t lenz = strlen(z->name);
+ if (
+ (lenz > len + 1)
+ && (strncmp(z->name, path, len) == 0)
+ && (z->name[len] == '/')
+ && (CountSlashes(z->name) == l)
+ && Tcl_StringCaseMatch(z->name + len + 1, pattern, 0)
+ ) {
+ if (prefix != NULL) {
+ Tcl_DStringAppend(&dsPref, z->name, lenz);
+ Tcl_ListObjAppendElement(
+ NULL, result,
+ Tcl_NewStringObj(Tcl_DStringValue(&dsPref),
+ Tcl_DStringLength(&dsPref))
+ );
+ Tcl_DStringSetLength(&dsPref, prefixLen);
+ } else {
+ Tcl_ListObjAppendElement(NULL, result, Tcl_NewStringObj(z->name, lenz));
+ }
+ }
+ z = z->tnext;
+ }
+ } else if (
+ (zf->mntptlen > len + 1)
+ && (strncmp(zf->mntpt, path, len) == 0)
+ && (zf->mntpt[len] == '/')
+ && (CountSlashes(zf->mntpt) == l)
+ && Tcl_StringCaseMatch(zf->mntpt + len + 1, pattern, 0)
+ ) {
+ if (prefix != NULL) {
+ Tcl_DStringAppend(&dsPref, zf->mntpt, zf->mntptlen);
+ Tcl_ListObjAppendElement(NULL, result,
+ Tcl_NewStringObj(Tcl_DStringValue(&dsPref),
+ Tcl_DStringLength(&dsPref)));
+ Tcl_DStringSetLength(&dsPref, prefixLen);
+ } else {
+ Tcl_ListObjAppendElement(NULL, result,
+ Tcl_NewStringObj(zf->mntpt, zf->mntptlen));
+ }
+ }
+ hPtr = Tcl_NextHashEntry(&search);
+ }
+ goto end;
+ }
+ if ((pattern == NULL) || (pattern[0] == '\0')) {
+ hPtr = Tcl_FindHashEntry(&ZipFS.fileHash, path);
+ if (hPtr != NULL) {
+ ZipEntry *z = (ZipEntry *) Tcl_GetHashValue(hPtr);
+
+ if ((dirOnly < 0) ||
+ (!dirOnly && !z->isdir) ||
+ (dirOnly && z->isdir)) {
+ if (prefix != NULL) {
+ Tcl_DStringAppend(&dsPref, z->name, -1);
+ Tcl_ListObjAppendElement(NULL, result,
+ Tcl_NewStringObj(Tcl_DStringValue(&dsPref),
+ Tcl_DStringLength(&dsPref)));
+ Tcl_DStringSetLength(&dsPref, prefixLen);
+ } else {
+ Tcl_ListObjAppendElement(NULL, result,
+ Tcl_NewStringObj(z->name, -1));
+ }
+ }
+ }
+ goto end;
+ }
+ l = strlen(pattern);
+ pat = Tcl_Alloc(len + l + 2);
+ memcpy(pat, path, len);
+ while ((len > 1) && (pat[len - 1] == '/')) {
+ --len;
+ }
+ if ((len > 1) || (pat[0] != '/')) {
+ pat[len] = '/';
+ ++len;
+ }
+ memcpy(pat + len, pattern, l + 1);
+ scnt = CountSlashes(pat);
+ for (
+ hPtr = Tcl_FirstHashEntry(&ZipFS.fileHash, &search);
+ hPtr != NULL;
+ hPtr = Tcl_NextHashEntry(&search)
+ ) {
+ ZipEntry *z = (ZipEntry *) Tcl_GetHashValue(hPtr);
+ if (
+ (dirOnly >= 0) && ((dirOnly && !z->isdir) || (!dirOnly && z->isdir))
+ ) {
+ continue;
+ }
+ if ((z->depth == scnt) && Tcl_StringCaseMatch(z->name, pat, 0)) {
+ if (prefix != NULL) {
+ Tcl_DStringAppend(&dsPref, z->name + strip, -1);
+ Tcl_ListObjAppendElement(
+ NULL, result,
+ Tcl_NewStringObj(Tcl_DStringValue(&dsPref),
+ Tcl_DStringLength(&dsPref))
+ );
+ Tcl_DStringSetLength(&dsPref, prefixLen);
+ } else {
+ Tcl_ListObjAppendElement(NULL, result, Tcl_NewStringObj(z->name + strip, -1));
+ }
+ }
+ }
+ Tcl_Free(pat);
+end:
+ Unlock();
+ Tcl_DStringFree(&dsPref);
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSPathInFilesystemProc --
+ *
+ * This function determines if the given path object is in the
+ * ZIP filesystem.
+ *
+ * Results:
+ * TCL_OK when the path object is in the ZIP filesystem, -1 otherwise.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+Zip_FSPathInFilesystemProc(Tcl_Obj *pathPtr, ClientData *clientDataPtr)
+{
+ Tcl_HashEntry *hPtr;
+ Tcl_HashSearch search;
+ ZipFile *zf;
+ int ret = -1;
+ size_t len;
+ char *path;
+
+ if (!(pathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr))) return -1;
+
+ path = Tcl_GetString(pathPtr);
+ if(strncmp(path,ZIPFS_VOLUME,ZIPFS_VOLUME_LEN)!=0) {
+ return -1;
+ }
+
+ len = pathPtr->length;
+
+ ReadLock();
+ hPtr = Tcl_FindHashEntry(&ZipFS.fileHash, path);
+ if (hPtr != NULL) {
+ ret = TCL_OK;
+ goto endloop;
+ }
+ hPtr = Tcl_FirstHashEntry(&ZipFS.zipHash, &search);
+ while (hPtr != NULL) {
+ zf = (ZipFile *) Tcl_GetHashValue(hPtr);
+ if (zf->mntptlen == 0) {
+ ZipEntry *z = zf->topents;
+ while (z != NULL) {
+ size_t lenz = strlen(z->name);
+ if (
+ (len >= lenz) && (strncmp(path, z->name, lenz) == 0)
+ ) {
+ ret = TCL_OK;
+ goto endloop;
+ }
+ z = z->tnext;
+ }
+ } else if (
+ (len >= zf->mntptlen) && (strncmp(path, zf->mntpt, zf->mntptlen) == 0)
+ ) {
+ ret = TCL_OK;
+ goto endloop;
+ }
+ hPtr = Tcl_NextHashEntry(&search);
+ }
+endloop:
+ Unlock();
+ return ret;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSListVolumesProc --
+ *
+ * Lists the currently mounted ZIP filesystem volumes.
+ *
+ * Results:
+ * The list of volumes.
+ *
+ * Side effects:
+ * None
+ *
+ *-------------------------------------------------------------------------
+ */
+static Tcl_Obj *
+Zip_FSListVolumesProc(void) {
+ return Tcl_NewStringObj(ZIPFS_VOLUME, -1);
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSFileAttrStringsProc --
+ *
+ * This function implements the ZIP filesystem dependent 'file attributes'
+ * subcommand, for listing the set of possible attribute strings.
+ *
+ * Results:
+ * An array of strings
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static const char *const *
+Zip_FSFileAttrStringsProc(Tcl_Obj *pathPtr, Tcl_Obj** objPtrRef)
+{
+ static const char *const attrs[] = {
+ "-uncompsize",
+ "-compsize",
+ "-offset",
+ "-mount",
+ "-archive",
+ "-permissions",
+ NULL,
+ };
+ return attrs;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSFileAttrsGetProc --
+ *
+ * This function implements the ZIP filesystem specific
+ * 'file attributes' subcommand, for 'get' operations.
+ *
+ * Results:
+ * Standard Tcl return code. The object placed in objPtrRef (if TCL_OK
+ * was returned) is likely to have a refCount of zero. Either way we must
+ * either store it somewhere (e.g. the Tcl result), or Incr/Decr its
+ * refCount to ensure it is properly freed.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+Zip_FSFileAttrsGetProc(Tcl_Interp *interp, int index, Tcl_Obj *pathPtr,
+ Tcl_Obj **objPtrRef)
+{
+ int len, ret = TCL_OK;
+ char *path;
+ ZipEntry *z;
+
+ if (!(pathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr))) return -1;
+ path = Tcl_GetStringFromObj(pathPtr, &len);
+ ReadLock();
+ z = ZipFSLookup(path);
+ if (z == NULL) {
+ ZIPFS_ERROR(interp,"file not found");
+ ret = TCL_ERROR;
+ goto done;
+ }
+ switch (index) {
+ case 0:
+ *objPtrRef = Tcl_NewWideIntObj(z->nbyte);
+ goto done;
+ case 1:
+ *objPtrRef = Tcl_NewWideIntObj(z->nbytecompr);
+ goto done;
+ case 2:
+ *objPtrRef= Tcl_NewWideIntObj(z->offset);
+ goto done;
+ case 3:
+ *objPtrRef= Tcl_NewStringObj(z->zipfile->mntpt, z->zipfile->mntptlen);
+ goto done;
+ case 4:
+ *objPtrRef= Tcl_NewStringObj(z->zipfile->name, -1);
+ goto done;
+ case 5:
+ *objPtrRef= Tcl_NewStringObj("0555", -1);
+ goto done;
+ }
+ ZIPFS_ERROR(interp,"unknown attribute");
+ ret = TCL_ERROR;
+done:
+ Unlock();
+ return ret;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSFileAttrsSetProc --
+ *
+ * This function implements the ZIP filesystem specific
+ * 'file attributes' subcommand, for 'set' operations.
+ *
+ * Results:
+ * Standard Tcl return code.
+ *
+ * Side effects:
+ * None.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+Zip_FSFileAttrsSetProc(Tcl_Interp *interp, int index, Tcl_Obj *pathPtr,Tcl_Obj *objPtr)
+{
+ if (interp != NULL) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("unsupported operation", -1));
+ }
+ return TCL_ERROR;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSFilesystemPathTypeProc --
+ *
+ * Results:
+ *
+ * Side effects:
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static Tcl_Obj *
+Zip_FSFilesystemPathTypeProc(Tcl_Obj *pathPtr)
+{
+ return Tcl_NewStringObj("zip", -1);
+}
+
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * Zip_FSLoadFile --
+ *
+ * This functions deals with loading native object code. If
+ * the given path object refers to a file within the ZIP
+ * filesystem, an approriate error code is returned to delegate
+ * loading to the caller (by copying the file to temp store
+ * and loading from there). As fallback when the file refers
+ * to the ZIP file system but is not present, it is looked up
+ * relative to the executable and loaded from there when available.
+ *
+ * Results:
+ * TCL_OK on success, TCL_ERROR otherwise with error message left.
+ *
+ * Side effects:
+ * Loads native code into the process address space.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+static int
+Zip_FSLoadFile(Tcl_Interp *interp, Tcl_Obj *path, Tcl_LoadHandle *loadHandle,
+ Tcl_FSUnloadFileProc **unloadProcPtr, int flags)
+{
+ Tcl_FSLoadFileProc2 *loadFileProc;
+#ifdef ANDROID
+ /*
+ * Force loadFileProc to native implementation since the
+ * package manager already extracted the shared libraries
+ * from the APK at install time.
+ */
+
+ loadFileProc = (Tcl_FSLoadFileProc2 *) tclNativeFilesystem.loadFileProc;
+ if (loadFileProc != NULL) {
+ return loadFileProc(interp, path, loadHandle, unloadProcPtr, flags);
+ }
+ Tcl_SetErrno(ENOENT);
+ ZIPFS_ERROR(interp,Tcl_PosixError(interp));
+ return TCL_ERROR;
+#else
+ Tcl_Obj *altPath = NULL;
+ int ret = TCL_ERROR;
+
+ if (Tcl_FSAccess(path, R_OK) == 0) {
+ /*
+ * EXDEV should trigger loading by copying to temp store.
+ */
+
+ Tcl_SetErrno(EXDEV);
+ ZIPFS_ERROR(interp,Tcl_PosixError(interp));
+ return ret;
+ } else {
+ Tcl_Obj *objs[2] = { NULL, NULL };
+
+ objs[1] = TclPathPart(interp, path, TCL_PATH_DIRNAME);
+ if ((objs[1] != NULL) && (Zip_FSAccessProc(objs[1], R_OK) == 0)) {
+ const char *execName = Tcl_GetNameOfExecutable();
+
+ /*
+ * Shared object is not in ZIP but its path prefix is,
+ * thus try to load from directory where the executable
+ * came from.
+ */
+ TclDecrRefCount(objs[1]);
+ objs[1] = TclPathPart(interp, path, TCL_PATH_TAIL);
+ /*
+ * Get directory name of executable manually to deal
+ * with cases where [file dirname [info nameofexecutable]]
+ * is equal to [info nameofexecutable] due to VFS effects.
+ */
+ if (execName != NULL) {
+ const char *p = strrchr(execName, '/');
+
+ if (p > execName + 1) {
+ --p;
+ objs[0] = Tcl_NewStringObj(execName, p - execName);
+ }
+ }
+ if (objs[0] == NULL) {
+ objs[0] = TclPathPart(interp, TclGetObjNameOfExecutable(),
+ TCL_PATH_DIRNAME);
+ }
+ if (objs[0] != NULL) {
+ altPath = TclJoinPath(2, objs);
+ if (altPath != NULL) {
+ Tcl_IncrRefCount(altPath);
+ if (Tcl_FSAccess(altPath, R_OK) == 0) {
+ path = altPath;
+ }
+ }
+ }
+ }
+ if (objs[0] != NULL) {
+ Tcl_DecrRefCount(objs[0]);
+ }
+ if (objs[1] != NULL) {
+ Tcl_DecrRefCount(objs[1]);
+ }
+ }
+ loadFileProc = (Tcl_FSLoadFileProc2 *) tclNativeFilesystem.loadFileProc;
+ if (loadFileProc != NULL) {
+ ret = loadFileProc(interp, path, loadHandle, unloadProcPtr, flags);
+ } else {
+ Tcl_SetErrno(ENOENT);
+ ZIPFS_ERROR(interp,Tcl_PosixError(interp));
+ }
+ if (altPath != NULL) {
+ Tcl_DecrRefCount(altPath);
+ }
+ return ret;
+#endif
+}
+
+#endif /* HAVE_ZLIB */
+
+
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * TclZipfs_Init --
+ *
+ * Perform per interpreter initialization of this module.
+ *
+ * Results:
+ * The return value is a standard Tcl result.
+ *
+ * Side effects:
+ * Initializes this module if not already initialized, and adds
+ * module related commands to the given interpreter.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+MODULE_SCOPE int
+TclZipfs_Init(Tcl_Interp *interp)
+{
+#ifdef HAVE_ZLIB
+ /* one-time initialization */
+ WriteLock();
+ /* Tcl_StaticPackage(interp, "zipfs", TclZipfs_Init, TclZipfs_Init); */
+ if (!ZipFS.initialized) {
+ TclZipfs_C_Init();
+ }
+ Unlock();
+ if(interp != NULL) {
+ static const EnsembleImplMap initMap[] = {
+ {"mkimg", ZipFSMkImgObjCmd, NULL, NULL, NULL, 0},
+ {"mkzip", ZipFSMkZipObjCmd, NULL, NULL, NULL, 0},
+ {"lmkimg", ZipFSLMkImgObjCmd, NULL, NULL, NULL, 0},
+ {"lmkzip", ZipFSLMkZipObjCmd, NULL, NULL, NULL, 0},
+ /* The 4 entries above are not available in safe interpreters */
+ {"mount", ZipFSMountObjCmd, NULL, NULL, NULL, 0},
+ {"mount_data", ZipFSMountBufferObjCmd, NULL, NULL, NULL, 0},
+ {"unmount", ZipFSUnmountObjCmd, NULL, NULL, NULL, 0},
+ {"mkkey", ZipFSMkKeyObjCmd, NULL, NULL, NULL, 0},
+ {"exists", ZipFSExistsObjCmd, NULL, NULL, NULL, 1},
+ {"info", ZipFSInfoObjCmd, NULL, NULL, NULL, 1},
+ {"list", ZipFSListObjCmd, NULL, NULL, NULL, 1},
+ {"canonical", ZipFSCanonicalObjCmd, NULL, NULL, NULL, 1},
+ {"root", ZipFSRootObjCmd, NULL, NULL, NULL, 1},
+ {"tcl_library", ZipFSTclLibraryObjCmd, NULL, NULL, NULL, 0},
+
+ {NULL, NULL, NULL, NULL, NULL, 0}
+ };
+ static const char findproc[] =
+ "namespace eval ::tcl::zipfs::zipfs {}\n"
+ "proc ::tcl::zipfs::find dir {\n"
+ " set result {}\n"
+ " if {[catch {glob -directory $dir -tails -nocomplain * .*} list]} {\n"
+ " return $result\n"
+ " }\n"
+ " foreach file $list {\n"
+ " if {$file eq \".\" || $file eq \"..\"} {\n"
+ " continue\n"
+ " }\n"
+ " set file [file join $dir $file]\n"
+ " lappend result $file\n"
+ " foreach file [::tcl::zipfs::find $file] {\n"
+ " lappend result $file\n"
+ " }\n"
+ " }\n"
+ " return [lsort $result]\n"
+ "}\n";
+ Tcl_EvalEx(interp, findproc, -1, TCL_EVAL_GLOBAL);
+ Tcl_LinkVar(interp, "::tcl::zipfs::wrmax", (char *) &ZipFS.wrmax,TCL_LINK_INT);
+ TclMakeEnsemble(interp, "zipfs", Tcl_IsSafe(interp) ? (initMap+4) : initMap);
+ Tcl_PkgProvide(interp, "zipfs", "2.0");
+ }
+ return TCL_OK;
+#else
+ ZIPFS_ERROR(interp,"no zlib available");
+ return TCL_ERROR;
+#endif
+}
+
+static int TclZipfs_AppHook_FindTclInit(const char *archive){
+ Tcl_Obj *vfsinitscript;
+ int found;
+ if(zipfs_literal_tcl_library) {
+ return TCL_ERROR;
+ }
+ if(TclZipfs_Mount(NULL, ZIPFS_ZIP_MOUNT, archive, NULL)) {
+ /* Either the file doesn't exist or it is not a zip archive */
+ return TCL_ERROR;
+ }
+ vfsinitscript=Tcl_NewStringObj(ZIPFS_ZIP_MOUNT "/init.tcl",-1);
+ Tcl_IncrRefCount(vfsinitscript);
+ found=Tcl_FSAccess(vfsinitscript,F_OK);
+ Tcl_DecrRefCount(vfsinitscript);
+ if(found==0) {
+ zipfs_literal_tcl_library=ZIPFS_ZIP_MOUNT;
+ return TCL_OK;
+ }
+ vfsinitscript=Tcl_NewStringObj(ZIPFS_ZIP_MOUNT "/tcl_library/init.tcl",-1);
+ Tcl_IncrRefCount(vfsinitscript);
+ found=Tcl_FSAccess(vfsinitscript,F_OK);
+ Tcl_DecrRefCount(vfsinitscript);
+ if(found==0) {
+ zipfs_literal_tcl_library=ZIPFS_ZIP_MOUNT "/tcl_library";
+ return TCL_OK;
+ }
+ return TCL_ERROR;
+}
+
+#ifdef _WIN32
+int TclZipfs_AppHook(int *argc, TCHAR ***argv)
+#else
+int TclZipfs_AppHook(int *argc, char ***argv)
+#endif
+{
+#ifdef _WIN32
+ Tcl_DString ds;
+#endif
+ /*
+ * Tclkit_MainHook --
+ * Performs the argument munging for the shell
+ */
+ char *archive;
+
+ Tcl_FindExecutable((*argv)[0]);
+ archive=(char *)Tcl_GetNameOfExecutable();
+ TclZipfs_Init(NULL);
+ /*
+ ** Look for init.tcl in one of the locations mounted later in this function
+ */
+ if(!TclZipfs_Mount(NULL, ZIPFS_APP_MOUNT, archive, NULL)) {
+ int found;
+ Tcl_Obj *vfsinitscript;
+ vfsinitscript=Tcl_NewStringObj(ZIPFS_APP_MOUNT "/main.tcl",-1);
+ Tcl_IncrRefCount(vfsinitscript);
+ if(Tcl_FSAccess(vfsinitscript,F_OK)==0) {
+ /* Startup script should be set before calling Tcl_AppInit */
+ Tcl_SetStartupScript(vfsinitscript,NULL);
+ } else {
+ Tcl_DecrRefCount(vfsinitscript);
+ }
+ /* Set Tcl Encodings */
+ if(!zipfs_literal_tcl_library) {
+ vfsinitscript=Tcl_NewStringObj(ZIPFS_APP_MOUNT "/tcl_library/init.tcl",-1);
+ Tcl_IncrRefCount(vfsinitscript);
+ found=Tcl_FSAccess(vfsinitscript,F_OK);
+ Tcl_DecrRefCount(vfsinitscript);
+ if(found==TCL_OK) {
+ zipfs_literal_tcl_library=ZIPFS_APP_MOUNT "/tcl_library";
+ return TCL_OK;
+ }
+ }
+ } else if (*argc>1) {
+ return TCL_OK;
+#ifdef _WIN32
+ archive = Tcl_WinTCharToUtf((*argv)[1], -1, &ds);
+#else
+ archive=(*argv)[1];
+#endif
+ if (strcmp(archive,"install")==0) {
+ /* If the first argument is mkzip, run the mkzip program */
+ Tcl_Obj *vfsinitscript;
+ /* Run this now to ensure the file is present by the time Tcl_Main wants it */
+ TclZipfs_TclLibrary();
+ vfsinitscript=Tcl_NewStringObj(ZIPFS_ZIP_MOUNT "/tcl_library/install.tcl",-1);
+ Tcl_IncrRefCount(vfsinitscript);
+ if(Tcl_FSAccess(vfsinitscript,F_OK)==0) {
+ Tcl_SetStartupScript(vfsinitscript,NULL);
+ }
+ return TCL_OK;
+ } else {
+ if(!TclZipfs_Mount(NULL, ZIPFS_APP_MOUNT, archive, NULL)) {
+ int found;
+ Tcl_Obj *vfsinitscript;
+ vfsinitscript=Tcl_NewStringObj(ZIPFS_APP_MOUNT "/main.tcl",-1);
+ Tcl_IncrRefCount(vfsinitscript);
+ if(Tcl_FSAccess(vfsinitscript,F_OK)==0) {
+ /* Startup script should be set before calling Tcl_AppInit */
+ Tcl_SetStartupScript(vfsinitscript,NULL);
+ } else {
+ Tcl_DecrRefCount(vfsinitscript);
+ }
+ /* Set Tcl Encodings */
+ vfsinitscript=Tcl_NewStringObj(ZIPFS_APP_MOUNT "/tcl_library/init.tcl",-1);
+ Tcl_IncrRefCount(vfsinitscript);
+ found=Tcl_FSAccess(vfsinitscript,F_OK);
+ Tcl_DecrRefCount(vfsinitscript);
+ if(found==TCL_OK) {
+ zipfs_literal_tcl_library=ZIPFS_APP_MOUNT "/tcl_library";
+ return TCL_OK;
+ }
+ }
+ }
+#ifdef _WIN32
+ Tcl_DStringFree(&ds);
+#endif
+ }
+ return TCL_OK;
+}
+
+
+#ifndef HAVE_ZLIB
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * TclZipfs_Mount, TclZipfs_Unmount --
+ *
+ * Dummy version when no ZLIB support available.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+int
+TclZipfs_Mount(Tcl_Interp *interp, const char *mntpt, const char *zipname,
+ const char *passwd)
+{
+ return TclZipfs_Init(interp, 1);
+}
+
+int
+TclZipfs_Unmount(Tcl_Interp *interp, const char *zipname)
+{
+ return TclZipfs_Init(interp, 1);
+}
+
+#endif
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
generated by cgit v0.12 at 2025-12-04 09:18:23 (GMT)