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Diffstat (limited to 'generic/tclZipfs.c')
| -rw-r--r-- | generic/tclZipfs.c | 4525 |
1 files changed, 4525 insertions, 0 deletions
diff --git a/generic/tclZipfs.c b/generic/tclZipfs.c new file mode 100644 index 0000000..19673c8 --- /dev/null +++ b/generic/tclZipfs.c @@ -0,0 +1,4525 @@ +/* + * 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: + */ |