home *** CD-ROM | disk | FTP | other *** search
- /*---------------------------------------------------------------------------
-
- nt.c Last updated: 15 Aug 94
-
- WinNT-specific routines for use with Info-ZIP's UnZip 5.1 and later.
- (Borrowed, pilfered and plundered code from OS/2 and MS-DOS versions and
- from ZIP; modified as necessary.)
-
- Contains: GetLoadPath()
- opendir()
- readdir()
- closedir()
- mapattr()
- getNTfiletime()
- close_outfile()
- isfloppy()
- IsVolumeOldFAT()
- IsFileNameValid()
- map2fat()
- checkdir()
- do_wild()
- mapname()
- version()
-
- ---------------------------------------------------------------------------*/
-
- #include <windows.h>
- #include "unzip.h"
-
-
- #define MKDIR(path,mode) mkdir(path)
-
- struct direct
- {
- char reserved [21];
- char ff_attrib;
- short ff_ftime;
- short ff_fdate;
- long size;
- char d_name[MAX_PATH];
- int d_first;
- HANDLE d_hFindFile;
- };
-
-
- static int created_dir; /* used by mapname(), checkdir() */
- static int renamed_fullpath; /* ditto */
- static int fnlen; /* ditto */
- static unsigned nLabelDrive; /* ditto */
-
-
-
- #ifdef SFX
-
- /**************************/
- /* Function GetLoadPath() */
- /**************************/
-
- char *GetLoadPath(void)
- {
- #ifdef MSC
- extern char *_pgmptr;
- return _pgmptr;
-
- #else /* use generic API call */
- GetModuleFileName(NULL, filename, FILNAMSIZ);
- return filename;
- #endif
-
- } /* end function GetLoadPath() */
-
-
-
-
-
- #else /* !SFX */
-
- /**********************/ /* Borrowed from ZIP 2.0 sources */
- /* Function opendir() */ /* Difference: no special handling for */
- /**********************/ /* hidden or system files. */
-
- static struct direct *opendir(n)
- const char *n; /* directory to open */
- {
- struct direct *d; /* malloc'd return value */
- char *p; /* malloc'd temporary string */
- WIN32_FIND_DATA fd;
- int len = strlen(n);
-
- /* Start searching for files in the MSDOS directory n */
-
- if ((d = (struct direct *)malloc(sizeof(struct direct))) == NULL ||
- (p = malloc(strlen(n) + 5)) == NULL)
- {
- if (d != (struct direct *)NULL)
- free((void *)d);
- return (struct direct *)NULL;
- }
- strcpy(p, n);
- if (p[len-1] == ':')
- p[len++] = '.'; /* x: => x:. */
- else if (p[len-1] == '/' || p[len-1] == '\\')
- --len; /* foo/ => foo */
- strcpy(p+len, "/*");
-
- if (INVALID_HANDLE_VALUE == (d->d_hFindFile = FindFirstFile(p, &fd))) {
- free((voidp *)d);
- free((voidp *)p);
- return NULL;
- }
- strcpy(d->d_name, fd.cFileName);
-
- free((voidp *)p);
- d->d_first = 1;
- return d;
-
- } /* end of function opendir() */
-
-
-
-
- /**********************/ /* Borrowed from ZIP 2.0 sources */
- /* Function readdir() */ /* Difference: no special handling for */
- /**********************/ /* hidden or system files. */
-
- static struct direct *readdir(d)
- struct direct *d; /* directory stream from which to read */
- {
- /* Return pointer to first or next directory entry, or NULL if end. */
-
- if ( d->d_first )
- d->d_first = 0;
- else
- {
- WIN32_FIND_DATA fd;
-
- if ( !FindNextFile(d->d_hFindFile, &fd) )
- return NULL;
-
- strcpy(d->d_name, fd.cFileName);
- }
- return (struct direct *)d;
-
- } /* end of function readdir() */
-
-
-
-
- /***********************/
- /* Function closedir() */ /* Borrowed from ZIP 2.0 sources */
- /***********************/
-
- static void closedir(d)
- struct direct *d; /* directory stream to close */
- {
- FindClose(d->d_hFindFile);
- free(d);
- }
-
- #endif /* ?SFX */
-
-
-
-
- /**********************/
- /* Function mapattr() */
- /**********************/
-
- /* Identical to MS-DOS, OS/2 versions. */
- /* However, NT has a lot of extra permission stuff, so this function should */
- /* probably be extended in the future. */
-
- int mapattr()
- {
- /* set archive bit (file is not backed up): */
- pInfo->file_attr = (unsigned)(crec.external_file_attributes | 32) & 0xff;
- return 0;
-
- } /* end function mapattr() */
-
-
-
-
- /****************************/ /* Get the file time in a format that */
- /* Function getNTfiletime() */ /* can be used by SetFileTime() in NT */
- /****************************/
-
- int getNTfiletime(FILETIME *ft)
- {
- FILETIME lft; /* 64-bit value made up of two 32 bit [low & high] */
- WORD wDOSDate; /* for converting from DOS date to Windows NT */
- WORD wDOSTime;
-
- /* Copy and/or convert time and date variables, if necessary; */
- /* then set the file time/date. */
- wDOSTime = (WORD)lrec.last_mod_file_time;
- wDOSDate = (WORD)lrec.last_mod_file_date;
-
- /* The DosDateTimeToFileTime() function converts a DOS date/time */
- /* into a 64 bit Windows NT file time */
- if (!DosDateTimeToFileTime(wDOSDate, wDOSTime, &lft))
- {
- PRINTF("DosDateTime failed: %d\n", GetLastError());
- return FALSE;
- }
- if (!LocalFileTimeToFileTime( &lft, ft))
- {
- PRINTF("LocalFileTime failed: %d\n", GetLastError());
- *ft = lft;
- }
- return TRUE;
- }
-
-
-
-
- /****************************/
- /* Function close_outfile() */
- /****************************/
-
- void close_outfile()
- {
- FILETIME ft; /* File time type defined in NT */
- HANDLE hFile; /* File handle defined in NT */
- int gotTime;
-
- /* don't set the time stamp on standard output */
- if (cflag) {
- fclose(outfile);
- return;
- }
-
- gotTime = getNTfiletime(&ft);
-
- /* Close the file and then re-open it using the Win32
- * CreateFile call, so that the file can be created
- * with GENERIC_WRITE access, otherwise the SetFileTime
- * call will fail. */
- fclose(outfile);
-
- hFile = CreateFile(filename, GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
- FILE_ATTRIBUTE_NORMAL, NULL);
- if ( hFile == INVALID_HANDLE_VALUE ) {
- FPRINTF(stderr, "\nCreateFile error %d when trying set file time\n",
- GetLastError());
- }
- else {
- if (gotTime)
- if (!SetFileTime(hFile, NULL, NULL, &ft))
- PRINTF("\nSetFileTime failed: %d\n", GetLastError());
- CloseHandle(hFile);
- }
-
- /* HG: I think this could be done in the CreateFile call above - just */
- /* replace 'FILE_ATTRIBUTE_NORMAL' with 'pInfo->file_attr & 0x7F' */
- if (!SetFileAttributes(filename, pInfo->file_attr & 0x7F))
- FPRINTF(stderr, "\nwarning (%d): could not set file attributes\n",
- GetLastError());
-
- return;
-
- } /* end function close_outfile() */
-
-
-
- /* ============================================================================
- */
-
-
-
- /***********************/
- /* Function isfloppy() */ /* more precisely, is it removable? */
- /***********************/
-
- static int isfloppy(int nDrive) /* 1 == A:, 2 == B:, etc. */
- {
- char rootPathName[4];
-
- rootPathName[0] = 'A' + nDrive - 1; /* Build the root path name, */
- rootPathName[1] = ':'; /* e.g. "A:/" */
- rootPathName[2] = '/';
- rootPathName[3] = '\0';
-
- return (GetDriveType(rootPathName) == DRIVE_REMOVABLE);
-
- } /* end function isfloppy() */
-
-
-
-
- /*****************************/
- /* Function IsVolumeOldFAT() */
- /*****************************/
-
- /*
- * Note: 8.3 limits on filenames apply only to old-style FAT filesystems.
- * More recent versions of Windows (Windows NT 3.5 / Windows 4.0)
- * can support long filenames (LFN) on FAT filesystems. Check the
- * filesystem maximum component length field to detect LFN support.
- * [GRR: this routine is only used to determine whether spaces in
- * filenames are supported...]
- */
-
- static int IsVolumeOldFAT(char *name)
- {
- char *tmp0;
- char rootPathName[4];
- char tmp1[MAX_PATH], tmp2[MAX_PATH];
- unsigned volSerNo, maxCompLen, fileSysFlags;
-
- if (isalpha(name[0]) && (name[1] == ':'))
- tmp0 = name;
- else
- {
- GetFullPathName(name, MAX_PATH, tmp1, &tmp0);
- tmp0 = &tmp1[0];
- }
- strncpy(rootPathName, tmp0, 3); /* Build the root path name, */
- rootPathName[3] = '\0'; /* e.g. "A:/" */
-
- GetVolumeInformation(rootPathName, tmp1, MAX_PATH, &volSerNo,
- &maxCompLen, &fileSysFlags, tmp2, MAX_PATH);
-
- /* Long Filenames (LFNs) are available if the component length is > 12 */
- return maxCompLen <= 12;
- /* return !strncmp(strupr(tmp2), "FAT", 3); old version */
-
- }
-
-
-
-
- /******************************/
- /* Function IsFileNameValid() */
- /******************************/
-
- static int IsFileNameValid(char *name)
- {
- HFILE hf;
- OFSTRUCT of;
-
- hf = OpenFile(name, &of, OF_READ | OF_SHARE_DENY_NONE);
- if (hf == HFILE_ERROR)
- switch (GetLastError())
- {
- case ERROR_INVALID_NAME:
- case ERROR_FILENAME_EXCED_RANGE:
- return FALSE;
- default:
- return TRUE;
- }
- else
- _lclose(hf);
- return TRUE;
- }
-
-
-
-
- /**********************/
- /* Function map2fat() */ /* Identical to OS/2 version */
- /**********************/
-
- void map2fat(pathcomp, pEndFAT)
- char *pathcomp, **pEndFAT;
- {
- char *ppc = pathcomp; /* variable pointer to pathcomp */
- char *pEnd = *pEndFAT; /* variable pointer to buildpathFAT */
- char *pBegin = *pEndFAT; /* constant pointer to start of this comp. */
- char *last_dot = NULL; /* last dot not converted to underscore */
- int dotname = FALSE; /* flag: path component begins with dot */
- /* ("." and ".." don't count) */
- register unsigned workch; /* hold the character being tested */
-
-
- /* Only need check those characters which are legal in HPFS but not
- * in FAT: to get here, must already have passed through mapname.
- * (GRR: oops, small bug--if char was quoted, no longer have any
- * knowledge of that.) Also must truncate path component to ensure
- * 8.3 compliance...
- */
- while ((workch = (uch)*ppc++) != 0) {
- switch (workch) {
- case '[':
- case ']':
- *pEnd++ = '_'; /* convert brackets to underscores */
- break;
-
- case '.':
- if (pEnd == *pEndFAT) { /* nothing appended yet... */
- if (*ppc == '\0') /* don't bother appending a */
- break; /* "./" component to the path */
- else if (*ppc == '.' && ppc[1] == '\0') { /* "../" */
- *pEnd++ = '.'; /* add first dot, unchanged... */
- ++ppc; /* skip second dot, since it will */
- } else { /* be "added" at end of if-block */
- *pEnd++ = '_'; /* FAT doesn't allow null filename */
- dotname = TRUE; /* bodies, so map .exrc -> _.exrc */
- } /* (extra '_' now, "dot" below) */
- } else if (dotname) { /* found a second dot, but still */
- dotname = FALSE; /* have extra leading underscore: */
- *pEnd = '\0'; /* remove it by shifting chars */
- pEnd = *pEndFAT + 1; /* left one space (e.g., .p1.p2: */
- while (pEnd[1]) { /* __p1 -> _p1_p2 -> _p1.p2 when */
- *pEnd = pEnd[1]; /* finished) [opt.: since first */
- ++pEnd; /* two chars are same, can start */
- } /* shifting at second position] */
- }
- last_dot = pEnd; /* point at last dot so far... */
- *pEnd++ = '_'; /* convert dot to underscore for now */
- break;
-
- default:
- *pEnd++ = (char)workch;
-
- } /* end switch */
- } /* end while loop */
-
- *pEnd = '\0'; /* terminate buildpathFAT */
-
- /* NOTE: keep in mind that pEnd points to the end of the path
- * component, and *pEndFAT still points to the *beginning* of it...
- * Also note that the algorithm does not try to get too fancy:
- * if there are no dots already, the name either gets truncated
- * at 8 characters or the last underscore is converted to a dot
- * (only if more characters are saved that way). In no case is
- * a dot inserted between existing characters.
- */
- if (last_dot == NULL) { /* no dots: check for underscores... */
- char *plu = strrchr(pBegin, '_'); /* pointer to last underscore */
-
- if (plu == NULL) { /* no dots, no underscores: truncate at 8 chars */
- *pEndFAT += 8; /* (or could insert '.' and keep 11...?) */
- if (*pEndFAT > pEnd)
- *pEndFAT = pEnd; /* oops...didn't have 8 chars to truncate */
- else
- **pEndFAT = '\0';
- } else if (MIN(plu - pBegin, 8) + MIN(pEnd - plu - 1, 3) > 8) {
- last_dot = plu; /* be lazy: drop through to next if-blk */
- } else if ((pEnd - *pEndFAT) > 8) {
- *pEndFAT += 8; /* more fits into just basename than if */
- **pEndFAT = '\0'; /* convert last underscore to dot */
- } else
- *pEndFAT = pEnd; /* whole thing fits into 8 chars or less */
- }
-
- if (last_dot != NULL) { /* one dot (or two, in the case of */
- *last_dot = '.'; /* "..") is OK: put it back in */
-
- if ((last_dot - pBegin) > 8) {
- char *p=last_dot, *q=pBegin+8;
- int i;
-
- for (i = 0; (i < 4) && *p; ++i) /* too many chars in basename: */
- *q++ = *p++; /* shift .ext left and trun- */
- *q = '\0'; /* cate/terminate it */
- *pEndFAT = q;
- } else if ((pEnd - last_dot) > 4) { /* too many chars in extension */
- *pEndFAT = last_dot + 4;
- **pEndFAT = '\0';
- } else
- *pEndFAT = pEnd; /* filename is fine; point at terminating zero */
- }
- } /* end function map2fat() */
-
-
-
-
- /***********************/ /* Borrowed from os2.c for UnZip 5.1. */
- /* Function checkdir() */ /* Difference: no EA stuff */
- /***********************/ /* HPFS stuff works on NTFS too */
-
- int checkdir(pathcomp, flag)
- char *pathcomp;
- int flag;
- /*
- * returns: 1 - (on APPEND_NAME) truncated filename
- * 2 - path doesn't exist, not allowed to create
- * 3 - path doesn't exist, tried to create and failed; or
- * path exists and is not a directory, but is supposed to be
- * 4 - path is too long
- * 10 - can't allocate memory for filename buffers
- */
- {
- static int rootlen = 0; /* length of rootpath */
- static char *rootpath; /* user's "extract-to" directory */
- static char *buildpathHPFS; /* full path (so far) to extracted file, */
- static char *buildpathFAT; /* both HPFS/EA (main) and FAT versions */
- static char *endHPFS; /* corresponding pointers to end of */
- static char *endFAT; /* buildpath ('\0') */
-
- # define FN_MASK 7
- # define FUNCTION (flag & FN_MASK)
-
-
-
- /*---------------------------------------------------------------------------
- APPEND_DIR: append the path component to the path being built and check
- for its existence. If doesn't exist and we are creating directories, do
- so for this one; else signal success or error as appropriate.
- ---------------------------------------------------------------------------*/
-
- if (FUNCTION == APPEND_DIR) {
- char *p = pathcomp;
- int too_long=FALSE;
-
- Trace((stderr, "appending dir segment [%s]\n", pathcomp));
- while ((*endHPFS = *p++) != '\0') /* copy to HPFS filename */
- ++endHPFS;
- if (IsFileNameValid(buildpathHPFS)) {
- p = pathcomp;
- while ((*endFAT = *p++) != '\0') /* copy to FAT filename, too */
- ++endFAT;
- } else {
- /* GRR: check error return? */
- map2fat(pathcomp, &endFAT); /* map, put in FAT fn, update endFAT */
- }
-
- /* GRR: could do better check, see if overrunning buffer as we go:
- * check endHPFS-buildpathHPFS after each append, set warning variable
- * if within 20 of FILNAMSIZ; then if var set, do careful check when
- * appending. Clear variable when begin new path. */
-
- /* next check: need to append '/', at least one-char name, '\0' */
- if ((endHPFS-buildpathHPFS) > FILNAMSIZ-3)
- too_long = TRUE; /* check if extracting dir? */
- if (stat(buildpathFAT, &statbuf)) /* path doesn't exist */
- {
- if (!create_dirs) { /* told not to create (freshening) */
- free(buildpathHPFS);
- free(buildpathFAT);
- return 2; /* path doesn't exist: nothing to do */
- }
- if (too_long) { /* GRR: should allow FAT extraction w/o EAs */
- FPRINTF(stderr, "checkdir error: path too long: %s\n",
- buildpathHPFS);
- fflush(stderr);
- free(buildpathHPFS);
- free(buildpathFAT);
- return 4; /* no room for filenames: fatal */
- }
- if (MKDIR(buildpathFAT, 0777) == -1) { /* create the directory */
- FPRINTF(stderr, "checkdir error: can't create %s\n\
- unable to process %s.\n", buildpathFAT, filename);
- fflush(stderr);
- free(buildpathHPFS);
- free(buildpathFAT);
- return 3; /* path didn't exist, tried to create, failed */
- }
- created_dir = TRUE;
- } else if (!S_ISDIR(statbuf.st_mode)) {
- FPRINTF(stderr, "checkdir error: %s exists but is not directory\n\
- unable to process %s.\n", buildpathFAT, filename);
- fflush(stderr);
- free(buildpathHPFS);
- free(buildpathFAT);
- return 3; /* path existed but wasn't dir */
- }
- if (too_long) {
- FPRINTF(stderr, "checkdir error: path too long: %s\n",
- buildpathHPFS);
- fflush(stderr);
- free(buildpathHPFS);
- free(buildpathFAT);
- return 4; /* no room for filenames: fatal */
- }
- *endHPFS++ = '/';
- *endFAT++ = '/';
- *endHPFS = *endFAT = '\0';
- Trace((stderr, "buildpathHPFS now = [%s]\n", buildpathHPFS));
- Trace((stderr, "buildpathFAT now = [%s]\n", buildpathFAT));
- return 0;
-
- } /* end if (FUNCTION == APPEND_DIR) */
-
- /*---------------------------------------------------------------------------
- GETPATH: copy full FAT path to the string pointed at by pathcomp (want
- filename to reflect name used on disk, not EAs; if full path is HPFS,
- buildpathFAT and buildpathHPFS will be identical). Also free both paths.
- ---------------------------------------------------------------------------*/
-
- if (FUNCTION == GETPATH) {
- Trace((stderr, "getting and freeing FAT path [%s]\n", buildpathFAT));
- Trace((stderr, "freeing HPFS path [%s]\n", buildpathHPFS));
- strcpy(pathcomp, buildpathFAT);
- free(buildpathFAT);
- free(buildpathHPFS);
- buildpathHPFS = buildpathFAT = endHPFS = endFAT = NULL;
- return 0;
- }
-
- /*---------------------------------------------------------------------------
- APPEND_NAME: assume the path component is the filename; append it and
- return without checking for existence.
- ---------------------------------------------------------------------------*/
-
- if (FUNCTION == APPEND_NAME) {
- char *p = pathcomp;
- int error = 0;
-
- Trace((stderr, "appending filename [%s]\n", pathcomp));
- while ((*endHPFS = *p++) != '\0') { /* copy to HPFS filename */
- ++endHPFS;
- if ((endHPFS-buildpathHPFS) >= FILNAMSIZ) {
- *--endHPFS = '\0';
- FPRINTF(stderr, "checkdir warning: path too long; truncating\n\
- %s\n -> %s\n", filename, buildpathHPFS);
- fflush(stderr);
- error = 1; /* filename truncated */
- }
- }
-
- if ( pInfo->vollabel || IsFileNameValid(buildpathHPFS)) {
- p = pathcomp;
- while ((*endFAT = *p++) != '\0') /* copy to FAT filename, too */
- ++endFAT;
- } else {
- map2fat(pathcomp, &endFAT); /* map, put in FAT fn, update endFAT */
- }
- Trace((stderr, "buildpathHPFS: %s\nbuildpathFAT: %s\n",
- buildpathHPFS, buildpathFAT));
-
- return error; /* could check for existence, prompt for new name... */
-
- } /* end if (FUNCTION == APPEND_NAME) */
-
- /*---------------------------------------------------------------------------
- INIT: allocate and initialize buffer space for the file currently being
- extracted. If file was renamed with an absolute path, don't prepend the
- extract-to path.
- ---------------------------------------------------------------------------*/
-
- if (FUNCTION == INIT) {
-
- /* HG: variable not used here */
- /* char *p; */
-
- Trace((stderr, "initializing buildpathHPFS and buildpathFAT to "));
- if ((buildpathHPFS = (char *)malloc(fnlen+rootlen+1)) == NULL)
- return 10;
- if ((buildpathFAT = (char *)malloc(fnlen+rootlen+1)) == NULL) {
- free(buildpathHPFS);
- return 10;
- }
- if (pInfo->vollabel) { /* use root or renamed path, but don't store */
- /* GRR: for network drives, do strchr() and return IZ_VOL_LABEL if not [1] */
- if (renamed_fullpath && pathcomp[1] == ':')
- *buildpathHPFS = ToLower(*pathcomp);
- else if (!renamed_fullpath && rootpath && rootpath[1] == ':')
- *buildpathHPFS = ToLower(*rootpath);
- else {
- char tmpN[MAX_PATH], *tmpP;
- if (GetFullPathName(".", MAX_PATH, tmpN, &tmpP) > MAX_PATH)
- { /* by definition of MAX_PATH we should never get here */
- FPRINTF(stderr,
- "checkdir warning: current dir path too long\n");
- return 1; /* can't get drive letter */
- }
- nLabelDrive = *tmpN - 'a' + 1;
- *buildpathHPFS = (char)(nLabelDrive - 1 + 'a');
- }
- nLabelDrive = *buildpathHPFS - 'a' + 1; /* save for mapname() */
- if (volflag == 0 || *buildpathHPFS < 'a' || /* no labels/bogus? */
- (volflag == 1 && !isfloppy(nLabelDrive))) { /* -$: no fixed */
- free(buildpathHPFS);
- free(buildpathFAT);
- return IZ_VOL_LABEL; /* skipping with message */
- }
- *buildpathHPFS = '\0';
- } else if (renamed_fullpath) /* pathcomp = valid data */
- strcpy(buildpathHPFS, pathcomp);
- else if (rootlen > 0)
- strcpy(buildpathHPFS, rootpath);
- else
- *buildpathHPFS = '\0';
- endHPFS = buildpathHPFS;
- endFAT = buildpathFAT;
- while ((*endFAT = *endHPFS) != '\0') {
- ++endFAT;
- ++endHPFS;
- }
- Trace((stderr, "[%s]\n", buildpathHPFS));
- return 0;
- }
-
- /*---------------------------------------------------------------------------
- ROOT: if appropriate, store the path in rootpath and create it if neces-
- sary; else assume it's a zipfile member and return. This path segment
- gets used in extracting all members from every zipfile specified on the
- command line. Note that under OS/2 and MS-DOS, if a candidate extract-to
- directory specification includes a drive letter (leading "x:"), it is
- treated just as if it had a trailing '/'--that is, one directory level
- will be created if the path doesn't exist, unless this is otherwise pro-
- hibited (e.g., freshening).
- ---------------------------------------------------------------------------*/
-
- #if (!defined(SFX) || defined(SFX_EXDIR))
- if (FUNCTION == ROOT) {
- Trace((stderr, "initializing root path to [%s]\n", pathcomp));
- if (pathcomp == NULL) {
- rootlen = 0;
- return 0;
- }
- if ((rootlen = strlen(pathcomp)) > 0) {
- int had_trailing_pathsep=FALSE, has_drive=FALSE, xtra=2;
-
- if (isalpha(pathcomp[0]) && pathcomp[1] == ':')
- has_drive = TRUE; /* drive designator */
- if (pathcomp[rootlen-1] == '/') {
- pathcomp[--rootlen] = '\0';
- had_trailing_pathsep = TRUE;
- }
- if (has_drive && (rootlen == 2)) {
- if (!had_trailing_pathsep) /* i.e., original wasn't "x:/" */
- xtra = 3; /* room for '.' + '/' + 0 at end of "x:" */
- } else if (rootlen > 0) { /* need not check "x:." and "x:/" */
- if (SSTAT(pathcomp, &statbuf) || !S_ISDIR(statbuf.st_mode)) {
- /* path does not exist */
- if (!create_dirs /* || iswild(pathcomp) */
- #ifdef OLD_EXDIR
- || (!has_drive && !had_trailing_pathsep)
- #endif
- ) {
- rootlen = 0;
- return 2; /* treat as stored file */
- }
- /* create directory (could add loop here to scan pathcomp
- * and create more than one level, but really necessary?) */
- if (MKDIR(pathcomp, 0777) == -1) {
- FPRINTF(stderr,
- "checkdir: can't create extraction directory: %s\n",
- pathcomp);
- fflush(stderr);
- rootlen = 0; /* path didn't exist, tried to create, */
- return 3; /* failed: file exists, or need 2+ levels */
- }
- }
- }
- if ((rootpath = (char *)malloc(rootlen+xtra)) == NULL) {
- rootlen = 0;
- return 10;
- }
- strcpy(rootpath, pathcomp);
- if (xtra == 3) /* had just "x:", make "x:." */
- rootpath[rootlen++] = '.';
- rootpath[rootlen++] = '/';
- rootpath[rootlen] = '\0';
- }
- Trace((stderr, "rootpath now = [%s]\n", rootpath));
- return 0;
- }
- #endif /* !SFX || SFX_EXDIR */
-
- /*---------------------------------------------------------------------------
- END: free rootpath, immediately prior to program exit.
- ---------------------------------------------------------------------------*/
-
- if (FUNCTION == END) {
- Trace((stderr, "freeing rootpath\n"));
- if (rootlen > 0)
- free(rootpath);
- return 0;
- }
-
- return 99; /* should never reach */
-
- } /* end function checkdir() */
-
-
-
-
- #ifndef SFX
-
- /************************/
- /* Function do_wild() */ /* identical to OS/2 version */
- /************************/
-
- char *do_wild(wildspec)
- char *wildspec; /* only used first time on a given dir */
- {
- static struct direct *dir = NULL;
- static char *dirname, *wildname, matchname[FILNAMSIZ];
- static int firstcall=TRUE, have_dirname, dirnamelen;
- struct direct *file;
-
-
- /* Even when we're just returning wildspec, we *always* do so in
- * matchname[]--calling routine is allowed to append four characters
- * to the returned string, and wildspec may be a pointer to argv[].
- */
- if (firstcall) { /* first call: must initialize everything */
- firstcall = FALSE;
-
- /* break the wildspec into a directory part and a wildcard filename */
- if ((wildname = strrchr(wildspec, '/')) == NULL &&
- (wildname = strrchr(wildspec, ':')) == NULL) {
- dirname = ".";
- dirnamelen = 1;
- have_dirname = FALSE;
- wildname = wildspec;
- } else {
- ++wildname; /* point at character after '/' or ':' */
- dirnamelen = wildname - wildspec;
- if ((dirname = (char *)malloc(dirnamelen+1)) == NULL) {
- FPRINTF(stderr, "warning: can't allocate wildcard buffers\n");
- strcpy(matchname, wildspec);
- return matchname; /* but maybe filespec was not a wildcard */
- }
- strncpy(dirname, wildspec, dirnamelen);
- dirname[dirnamelen] = '\0'; /* terminate for strcpy below */
- have_dirname = TRUE;
- }
- Trace((stderr, "do_wild: dirname = [%s]\n", dirname));
-
- if ((dir = opendir(dirname)) != NULL) {
- while ((file = readdir(dir)) != NULL) {
- Trace((stderr, "do_wild: readdir returns %s\n", file->d_name));
- if (match(file->d_name, wildname, 1)) { /* 1 == ignore case */
- Trace((stderr, "do_wild: match() succeeds\n"));
- if (have_dirname) {
- strcpy(matchname, dirname);
- strcpy(matchname+dirnamelen, file->d_name);
- } else
- strcpy(matchname, file->d_name);
- return matchname;
- }
- }
- /* if we get to here directory is exhausted, so close it */
- closedir(dir);
- dir = NULL;
- }
- Trace((stderr, "do_wild: opendir(%s) returns NULL\n", dirname));
-
- /* return the raw wildspec in case that works (e.g., directory not
- * searchable, but filespec was not wild and file is readable) */
- strcpy(matchname, wildspec);
- return matchname;
- }
-
- /* last time through, might have failed opendir but returned raw wildspec */
- if (dir == NULL) {
- firstcall = TRUE; /* nothing left to try--reset for new wildspec */
- if (have_dirname)
- free(dirname);
- return (char *)NULL;
- }
-
- /* If we've gotten this far, we've read and matched at least one entry
- * successfully (in a previous call), so dirname has been copied into
- * matchname already.
- */
- while ((file = readdir(dir)) != NULL)
- if (match(file->d_name, wildname, 1)) { /* 1 == ignore case */
- if (have_dirname) {
- /* strcpy(matchname, dirname); */
- strcpy(matchname+dirnamelen, file->d_name);
- } else
- strcpy(matchname, file->d_name);
- return matchname;
- }
-
- closedir(dir); /* have read at least one dir entry; nothing left */
- dir = NULL;
- firstcall = TRUE; /* reset for new wildspec */
- if (have_dirname)
- free(dirname);
- return (char *)NULL;
-
- } /* end function do_wild() */
-
- #endif /* !SFX */
-
-
-
-
- /************************/
- /* Function mapname() */
- /************************/
-
- /*
- * There are presently two possibilities in OS/2: the output filesystem is
- * FAT, or it is HPFS. If the former, we need to map to FAT, obviously, but
- * we *also* must map to HPFS and store that version of the name in extended
- * attributes. Either way, we need to map to HPFS, so the main mapname
- * routine does that. In the case that the output file system is FAT, an
- * extra filename-mapping routine is called in checkdir(). While it should
- * be possible to determine the filesystem immediately upon entry to mapname(),
- * it is conceivable that the DOS APPEND utility could be added to OS/2 some-
- * day, allowing a FAT directory to be APPENDed to an HPFS drive/path. There-
- * fore we simply check the filesystem at each path component.
- *
- * Note that when alternative IFS's become available/popular, everything will
- * become immensely more complicated. For example, a Minix filesystem would
- * have limited filename lengths like FAT but no extended attributes in which
- * to store the longer versions of the names. A BSD Unix filesystem would
- * support paths of length 1024 bytes or more, but it is not clear that FAT
- * EAs would allow such long .LONGNAME fields or that OS/2 would properly
- * restore such fields when moving files from FAT to the new filesystem.
- *
- * GRR: some or all of the following chars should be checked in either
- * mapname (HPFS) or map2fat (FAT), depending: ,=^+'"[]<>|\t&
- */
-
- int mapname(renamed) /* return 0 if no error, 1 if caution (filename trunc), */
- int renamed; /* 2 if warning (skip file because dir doesn't exist), */
- { /* 3 if error (skip file), 10 if no memory (skip file), */
- /* IZ_VOL_LABEL if can't do vol label, IZ_CREATED_DIR */
- char pathcomp[FILNAMSIZ]; /* path-component buffer */
- char *pp, *cp=NULL; /* character pointers */
- char *lastsemi = NULL; /* pointer to last semi-colon in pathcomp */
- int quote = FALSE; /* flag: next char is literal */
- int error = 0;
- register unsigned workch; /* hold the character being tested */
-
-
- /*---------------------------------------------------------------------------
- Initialize various pointers and counters and stuff.
- ---------------------------------------------------------------------------*/
-
- /* can create path as long as not just freshening, or if user told us */
- create_dirs = (!fflag || renamed);
-
- created_dir = FALSE; /* not yet */
- renamed_fullpath = FALSE;
- fnlen = strlen(filename);
-
- if (renamed) {
- cp = filename - 1; /* point to beginning of renamed name... */
- while (*++cp)
- if (*cp == '\\') /* convert backslashes to forward */
- *cp = '/';
- cp = filename;
- /* use temporary rootpath if user gave full pathname */
- if (filename[0] == '/') {
- renamed_fullpath = TRUE;
- pathcomp[0] = '/'; /* copy the '/' and terminate */
- pathcomp[1] = '\0';
- ++cp;
- } else if (isalpha(filename[0]) && filename[1] == ':') {
- renamed_fullpath = TRUE;
- pp = pathcomp;
- *pp++ = *cp++; /* copy the "d:" (+ '/', possibly) */
- *pp++ = *cp++;
- if (*cp == '/')
- *pp++ = *cp++; /* otherwise add "./"? */
- *pp = '\0';
- }
- }
-
- /* pathcomp is ignored unless renamed_fullpath is TRUE: */
- if ((error = checkdir(pathcomp, INIT)) != 0) /* initialize path buffer */
- return error; /* ...unless no mem or vol label on hard disk */
-
- *pathcomp = '\0'; /* initialize translation buffer */
- pp = pathcomp; /* point to translation buffer */
- if (!renamed) { /* cp already set if renamed */
- if (jflag) /* junking directories */
- cp = (char *)strrchr(filename, '/');
- if (cp == NULL) /* no '/' or not junking dirs */
- cp = filename; /* point to internal zipfile-member pathname */
- else
- ++cp; /* point to start of last component of path */
- }
-
- /*---------------------------------------------------------------------------
- Begin main loop through characters in filename.
- ---------------------------------------------------------------------------*/
-
- while ((workch = (uch)*cp++) != 0) {
-
- if (quote) { /* if character quoted, */
- *pp++ = (char)workch; /* include it literally */
- quote = FALSE;
- } else
- switch (workch) {
- case '/': /* can assume -j flag not given */
- *pp = '\0';
- if ((error = checkdir(pathcomp, APPEND_DIR)) > 1)
- return error;
- pp = pathcomp; /* reset conversion buffer for next piece */
- lastsemi = NULL; /* leave directory semi-colons alone */
- break;
-
- case ':':
- *pp++ = '_'; /* drive names not stored in zipfile, */
- break; /* so no colons allowed */
-
- case ';': /* start of VMS version? */
- lastsemi = pp; /* remove VMS version later... */
- *pp++ = ';'; /* but keep semicolon for now */
- break;
-
- case '\026': /* control-V quote for special chars */
- quote = TRUE; /* set flag for next character */
- break;
-
- case ' ': /* keep spaces unless specifically */
- /* NT cannot create filenames with spaces on FAT volumes */
- if (sflag || IsVolumeOldFAT(filename))
- *pp++ = '_';
- else
- *pp++ = ' ';
- break;
-
- default:
- /* allow European characters in filenames: */
- if (isprint(workch) || (128 <= workch && workch <= 254))
- *pp++ = (char)workch;
- } /* end switch */
-
- } /* end while loop */
-
- *pp = '\0'; /* done with pathcomp: terminate it */
-
- /* if not saving them, remove VMS version numbers (appended "###") */
- if (!V_flag && lastsemi) {
- pp = lastsemi + 1; /* semi-colon was kept: expect #'s after */
- while (isdigit((uch)(*pp)))
- ++pp;
- if (*pp == '\0') /* only digits between ';' and end: nuke */
- *lastsemi = '\0';
- }
-
- /*---------------------------------------------------------------------------
- Report if directory was created (and no file to create: filename ended
- in '/'), check name to be sure it exists, and combine path and name be-
- fore exiting.
- ---------------------------------------------------------------------------*/
-
- if (filename[fnlen-1] == '/') {
- checkdir(filename, GETPATH);
- if (created_dir && QCOND2) {
- /* GRR: trailing '/'? need to strip or not? */
- FPRINTF(stdout, " creating: %-22s\n", filename);
- /* HG: are we setting the date&time on a newly created dir? */
- /* Not quite sure how to do this. It does not seem to */
- /* be done in the MS-DOS version of mapname(). */
- return IZ_CREATED_DIR; /* dir time already set */
- }
- return 2; /* dir existed already; don't look for data to extract */
- }
-
- if (*pathcomp == '\0') {
- FPRINTF(stderr, "mapname: conversion of %s failed\n", filename);
- return 3;
- }
-
- checkdir(pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */
- checkdir(filename, GETPATH);
- Trace((stderr, "mapname returns with filename = [%s] (error = %d)\n\n",
- filename, error));
-
- if (pInfo->vollabel) { /* set the volume label now */
- char drive[3];
-
- /* Build a drive string, e.g. "b:" */
- drive[0] = 'a' + nLabelDrive - 1;
- drive[1] = ':';
- drive[2] = '\0';
- if (QCOND2)
- FPRINTF(stdout, "labelling %s %-22s\n", drive, filename);
- if (!SetVolumeLabel(drive, filename)) {
- FPRINTF(stderr, "mapname: error setting volume label\n");
- return 3;
- }
- return 2; /* success: skip the "extraction" quietly */
- }
-
- return error;
-
- } /* end function mapname() */
-
-
-
-
-
- #ifndef SFX
-
- /************************/
- /* Function version() */
- /************************/
-
- void version()
- {
- extern char Far CompiledWith[];
- #if defined(_MSC_VER)
- char buf[80];
- #endif
-
- PRINTF(LoadFarString(CompiledWith),
-
- #ifdef _MSC_VER /* MSC == VC++, but what about SDK compiler? */
- (sprintf(buf, "Microsoft C %d.%02d ", _MSC_VER/100, _MSC_VER%100), buf),
- # if (_MSC_VER >= 800)
- "(Visual C++)",
- # else
- "(bad version)",
- # endif
- #else
- "unknown compiler (SDK?)", "",
- #endif
-
- "Windows NT", " (32-bit)",
-
- #ifdef __DATE__
- " on ", __DATE__
- #else
- "", ""
- #endif
- );
-
- return;
-
- } /* end function version() */
-
- #endif /* !SFX */
-