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Hardcore Gamer Resource Kit
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Hardcore Gamer Resource Kit - Disc 2.iso
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Utils
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UNIX
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UNZIP520
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WIN32
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WIN32.C
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C/C++ Source or Header
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1996-04-22
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46KB
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1,250 lines
/*---------------------------------------------------------------------------
win32.c
32-bit Windows-specific (NT/95) routines for use with Info-ZIP's UnZip 5.2
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()
---------------------------------------------------------------------------*/
#define UNZIP_INTERNAL
#include "unzip.h"
#include <windows.h> /* must be AFTER unzip.h to avoid struct G problems */
#define MKDIR(path,mode) mkdir(path)
typedef struct zdirent {
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;
} zDIR;
static zDIR *Opendir (const char *n);
static struct zdirent *Readdir (zDIR *d);
static void Closedir (zDIR *d);
#ifdef USE_EF_UX_TIME
static void utime2FileTime(time_t ut, FILETIME *ft);
#endif
static int getNTfiletime (__GPRO__ FILETIME *ft);
static void map2fat (char *pathcomp, char **pEndFAT);
/* 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(__GPRO)
{
#ifdef MSC
extern char *_pgmptr;
return _pgmptr;
#else /* use generic API call */
GetModuleFileName(NULL, G.filename, FILNAMSIZ-1);
return G.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 zDIR *Opendir(n)
const char *n; /* directory to open */
{
zDIR *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 = (zDIR *)malloc(sizeof(zDIR))) == NULL ||
(p = malloc(strlen(n) + 5)) == NULL)
{
if (d != (zDIR *)NULL)
free((void *)d);
return (zDIR *)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((zvoid *)d);
free((zvoid *)p);
return NULL;
}
strcpy(d->d_name, fd.cFileName);
free((zvoid *)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 zdirent *Readdir(d)
zDIR *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 zdirent *)d;
} /* end of function Readdir() */
/***********************/
/* Function Closedir() */ /* Borrowed from ZIP 2.0 sources */
/***********************/
static void Closedir(d)
zDIR *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(__G)
__GDEF
{
/* set archive bit (file is not backed up): */
G.pInfo->file_attr = (unsigned)(G.crec.external_file_attributes | 32) &
0xff;
return 0;
} /* end function mapattr() */
#ifdef USE_EF_UX_TIME
/*****************************/ /* Convert Unix time_t format into the */
/* Function utime2FileTime() */ /* form used by SetFileTime() in NT/95 */
/*****************************/
# define UNIX_TIME_ZERO_HI 0x019DB1DE
# define UNIX_TIME_ZERO_LO 0xD53E8000
# define NT_QUANTA_PER_UNIX 10000000
static void utime2FileTime(time_t ut, FILETIME *ft)
{
unsigned int b1, b2, carry = 0;
unsigned long r0, r1, r2, r3, r4;
b1 = ut & 0xFFFF;
b2 = (ut >> 16) & 0xFFFF; /* if ut is over 32 bits, too bad */
r1 = b1 * (NT_QUANTA_PER_UNIX & 0xFFFF);
r2 = b1 * (NT_QUANTA_PER_UNIX >> 16);
r3 = b2 * (NT_QUANTA_PER_UNIX & 0xFFFF);
r4 = b2 * (NT_QUANTA_PER_UNIX >> 16);
r0 = (r1 + (r2 << 16)) & 0xFFFFFFFF;
if (r0 < r1)
carry++;
r1 = r0;
r0 = (r0 + (r3 << 16)) & 0xFFFFFFFF;
if (r0 < r1)
carry++;
ft->dwLowDateTime = r0 + UNIX_TIME_ZERO_LO;
if (ft->dwLowDateTime < r0)
carry++;
ft->dwHighDateTime = r4 + (r2 >> 16) + (r3 >> 16)
+ UNIX_TIME_ZERO_HI + carry;
}
#endif /* USE_EF_UX_TIME */
/****************************/ /* Get the file time in a format that */
/* Function getNTfiletime() */ /* can be used by SetFileTime() in NT */
/****************************/
static int getNTfiletime(__G__ ft)
__GDEF
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;
#ifdef USE_EF_UX_TIME
ztimbuf z_utime; /* structure for Unix style actime and modtime */
#endif
/* Copy and/or convert time and date variables, if necessary; */
/* then set the file time/date. */
#ifdef USE_EF_UX_TIME
if (G.extra_field && ef_scan_for_izux(G.extra_field,
G.lrec.extra_field_length, &z_utime, NULL) > 0) {
TTrace((stderr, "close_outfile: Unix e.f. modif. time = %ld\n",
z_utime.modtime));
utime2FileTime(z_utime.modtime, ft);
return TRUE;
}
#endif /* USE_EF_UX_TIME */
wDOSTime = (WORD)G.lrec.last_mod_file_time;
wDOSDate = (WORD)G.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))
{
Info(slide, 0, ((char *)slide, "DosDateTime failed: %d\n",
GetLastError()));
return FALSE;
}
if (!LocalFileTimeToFileTime( &lft, ft))
{
Info(slide, 0, ((char *)slide, "LocalFileTime failed: %d\n",
GetLastError()));
*ft = lft;
}
return TRUE;
}
/****************************/
/* Function close_outfile() */
/****************************/
void close_outfile(__G)
__GDEF
{
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 (G.cflag) {
fclose(G.outfile);
return;
}
gotTime = getNTfiletime(__G__ &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(G.outfile);
hFile = CreateFile(G.filename, GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
if ( hFile == INVALID_HANDLE_VALUE )
Info(slide, 1, ((char *)slide,
"\nCreateFile error %d when trying set file time\n", GetLastError()));
else {
if (gotTime)
if (!SetFileTime(hFile, NULL, NULL, &ft))
Info(slide, 0, ((char *)slide, "\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(G.filename, G.pInfo->file_attr & 0x7F))
Info(slide, 1, ((char *)slide,
"\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] = (char)('A' + nDrive - 1); /* build the root path */
rootPathName[1] = ':'; /* name, 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((LPCTSTR)rootPathName, (LPTSTR)tmp1, (DWORD)MAX_PATH,
(LPDWORD)&volSerNo, (LPDWORD)&maxCompLen,
(LPDWORD)&fileSysFlags, (LPTSTR)tmp2, (DWORD)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() */ /* Not quite identical to OS/2 version */
/**********************/
static 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 NTFS but not
* in FAT: to get here, must already have passed through mapname.
* Also must truncate path component to ensure 8.3 compliance.
*/
while ((workch = (uch)*ppc++) != 0) {
switch (workch) {
case '[':
case ']':
case '+':
case ',':
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(__G__ pathcomp, flag)
__GDEF
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 ((*G.endHPFS = *p++) != '\0') /* copy to HPFS filename */
++G.endHPFS;
if (IsFileNameValid(G.buildpathHPFS)) {
p = pathcomp;
while ((*G.endFAT = *p++) != '\0') /* copy to FAT filename, too */
++G.endFAT;
} else
map2fat(pathcomp, &G.endFAT); /* map into 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 ((G.endHPFS-G.buildpathHPFS) > FILNAMSIZ-3)
too_long = TRUE; /* check if extracting dir? */
#ifdef FIX_STAT_BUG
/* Borland C++ 5.0 does not handle a call to stat() well if the
* directory does not exist (it tends to crash in strange places.)
* This is apparently a problem only when compiling for GUI rather
* than console. The code below attempts to work around this problem.
*/
if (access(G.buildpathFAT, 0) != 0) {
if (!G.create_dirs) { /* told not to create (freshening) */
free(G.buildpathHPFS);
free(G.buildpathFAT);
return 2; /* path doesn't exist: nothing to do */
}
if (too_long) { /* GRR: should allow FAT extraction w/o EAs */
Info(slide, 1, ((char *)slide,
"checkdir error: path too long: %s\n", G.buildpathHPFS));
free(G.buildpathHPFS);
free(G.buildpathFAT);
return 4; /* no room for filenames: fatal */
}
if (MKDIR(G.buildpathFAT, 0777) == -1) { /* create the directory */
Info(slide, 1, ((char *)slide,
"checkdir error: can't create %s\n\
unable to process %s.\n", G.buildpathFAT, G.filename));
free(G.buildpathHPFS);
free(G.buildpathFAT);
return 3; /* path didn't exist, tried to create, failed */
}
G.created_dir = TRUE;
}
#endif /* FIX_STAT_BUG */
if (stat(G.buildpathFAT, &G.statbuf)) /* path doesn't exist */
{
if (!G.create_dirs) { /* told not to create (freshening) */
free(G.buildpathHPFS);
free(G.buildpathFAT);
return 2; /* path doesn't exist: nothing to do */
}
if (too_long) { /* GRR: should allow FAT extraction w/o EAs */
Info(slide, 1, ((char *)slide,
"checkdir error: path too long: %s\n", G.buildpathHPFS));
free(G.buildpathHPFS);
free(G.buildpathFAT);
return 4; /* no room for filenames: fatal */
}
if (MKDIR(G.buildpathFAT, 0777) == -1) { /* create the directory */
Info(slide, 1, ((char *)slide,
"checkdir error: can't create %s\n\
unable to process %s.\n", G.buildpathFAT, G.filename));
free(G.buildpathHPFS);
free(G.buildpathFAT);
return 3; /* path didn't exist, tried to create, failed */
}
G.created_dir = TRUE;
} else if (!S_ISDIR(G.statbuf.st_mode)) {
Info(slide, 1, ((char *)slide,
"checkdir error: %s exists but is not directory\n \
unable to process %s.\n", G.buildpathFAT, G.filename));
free(G.buildpathHPFS);
free(G.buildpathFAT);
return 3; /* path existed but wasn't dir */
}
if (too_long) {
Info(slide, 1, ((char *)slide,
"checkdir error: path too long: %s\n", G.buildpathHPFS));
free(G.buildpathHPFS);
free(G.buildpathFAT);
return 4; /* no room for filenames: fatal */
}
*G.endHPFS++ = '/';
*G.endFAT++ = '/';
*G.endHPFS = *G.endFAT = '\0';
Trace((stderr, "buildpathHPFS now = [%s]\n", G.buildpathHPFS));
Trace((stderr, "buildpathFAT now = [%s]\n", G.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", G.buildpathFAT));
Trace((stderr, "freeing HPFS path [%s]\n", G.buildpathHPFS));
strcpy(pathcomp, G.buildpathFAT);
free(G.buildpathFAT);
free(G.buildpathHPFS);
G.buildpathHPFS = G.buildpathFAT = G.endHPFS = G.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 ((*G.endHPFS = *p++) != '\0') { /* copy to HPFS filename */
++G.endHPFS;
if ((G.endHPFS-G.buildpathHPFS) >= FILNAMSIZ) {
*--G.endHPFS = '\0';
Info(slide, 1, ((char *)slide,
"checkdir warning: path too long; truncating\n \
%s\n -> %s\n", G.filename, G.buildpathHPFS));
error = 1; /* filename truncated */
}
}
if ( G.pInfo->vollabel || IsFileNameValid(G.buildpathHPFS)) {
p = pathcomp;
while ((*G.endFAT = *p++) != '\0') /* copy to FAT filename, too */
++G.endFAT;
} else
map2fat(pathcomp, &G.endFAT); /* map into FAT fn, update endFAT */
Trace((stderr, "buildpathHPFS: %s\nbuildpathFAT: %s\n",
G.buildpathHPFS, G.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) {
Trace((stderr, "initializing buildpathHPFS and buildpathFAT to "));
if ((G.buildpathHPFS = (char *)malloc(G.fnlen+G.rootlen+1)) == NULL)
return 10;
if ((G.buildpathFAT = (char *)malloc(G.fnlen+G.rootlen+1)) == NULL) {
free(G.buildpathHPFS);
return 10;
}
if (G.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 (G.renamed_fullpath && pathcomp[1] == ':')
*G.buildpathHPFS = (char)ToLower(*pathcomp);
else if (!G.renamed_fullpath && G.rootlen > 1 &&
G.rootpath[1] == ':')
*G.buildpathHPFS = (char)ToLower(*G.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 */
Info(slide, 1, ((char *)slide,
"checkdir warning: current dir path too long\n"));
return 1; /* can't get drive letter */
}
G.nLabelDrive = *tmpN - 'a' + 1;
*G.buildpathHPFS = (char)(G.nLabelDrive - 1 + 'a');
}
G.nLabelDrive = *G.buildpathHPFS - 'a' + 1; /* save for mapname() */
if (G.volflag == 0 || *G.buildpathHPFS < 'a' /* no labels/bogus? */
|| (G.volflag == 1 && !isfloppy(G.nLabelDrive))) { /* !fixed */
free(G.buildpathHPFS);
free(G.buildpathFAT);
return IZ_VOL_LABEL; /* skipping with message */
}
*G.buildpathHPFS = '\0';
} else if (G.renamed_fullpath) /* pathcomp = valid data */
strcpy(G.buildpathHPFS, pathcomp);
else if (G.rootlen > 0)
strcpy(G.buildpathHPFS, G.rootpath);
else
*G.buildpathHPFS = '\0';
G.endHPFS = G.buildpathHPFS;
G.endFAT = G.buildpathFAT;
while ((*G.endFAT = *G.endHPFS) != '\0') {
++G.endFAT;
++G.endHPFS;
}
Trace((stderr, "[%s]\n", G.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) {
G.rootlen = 0;
return 0;
}
if ((G.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[G.rootlen-1] == '/') {
pathcomp[--G.rootlen] = '\0';
had_trailing_pathsep = TRUE;
}
if (has_drive && (G.rootlen == 2)) {
if (!had_trailing_pathsep) /* i.e., original wasn't "x:/" */
xtra = 3; /* room for '.' + '/' + 0 at end of "x:" */
} else if (G.rootlen > 0) { /* need not check "x:." and "x:/" */
if (SSTAT(pathcomp, &G.statbuf) || !S_ISDIR(G.statbuf.st_mode))
{
/* path does not exist */
if (!G.create_dirs /* || iswild(pathcomp) */ ) {
G.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) {
Info(slide, 1, ((char *)slide,
"checkdir: can't create extraction directory: %s\n",
pathcomp));
G.rootlen = 0; /* path didn't exist, tried to create, */
return 3; /* failed: file exists, or need 2+ levels */
}
}
}
if ((G.rootpath = (char *)malloc(G.rootlen+xtra)) == NULL) {
G.rootlen = 0;
return 10;
}
strcpy(G.rootpath, pathcomp);
if (xtra == 3) /* had just "x:", make "x:." */
G.rootpath[G.rootlen++] = '.';
G.rootpath[G.rootlen++] = '/';
G.rootpath[G.rootlen] = '\0';
Trace((stderr, "rootpath now = [%s]\n", G.rootpath));
}
return 0;
}
#endif /* !SFX || SFX_EXDIR */
/*---------------------------------------------------------------------------
END: free rootpath, immediately prior to program exit.
---------------------------------------------------------------------------*/
if (FUNCTION == END) {
Trace((stderr, "freeing rootpath\n"));
if (G.rootlen > 0)
free(G.rootpath);
return 0;
}
return 99; /* should never reach */
} /* end function checkdir() */
#ifndef SFX
/************************/
/* Function do_wild() */ /* identical to OS/2 version */
/************************/
char *do_wild(__G__ wildspec)
__GDEF
char *wildspec; /* only used first time on a given dir */
{
/* static zDIR *dir = NULL; */
/* static char *dirname, *wildname, matchname[FILNAMSIZ]; */
/* static int firstcall=TRUE, have_dirname, dirnamelen; */
struct zdirent *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 (!G.notfirstcall) { /* first call: must initialize everything */
G.notfirstcall = TRUE;
if (!iswild(wildspec)) {
strcpy(G.matchname, wildspec);
G.have_dirname = FALSE;
G.wild_dir = NULL;
return G.matchname;
}
/* break the wildspec into a directory part and a wildcard filename */
if ((G.wildname = strrchr(wildspec, '/')) == NULL &&
(G.wildname = strrchr(wildspec, ':')) == NULL) {
G.dirname = ".";
G.dirnamelen = 1;
G.have_dirname = FALSE;
G.wildname = wildspec;
} else {
++G.wildname; /* point at character after '/' or ':' */
G.dirnamelen = G.wildname - wildspec;
if ((G.dirname = (char *)malloc(G.dirnamelen+1)) == NULL) {
Info(slide, 1, ((char *)slide,
"warning: can't allocate wildcard buffers\n"));
strcpy(G.matchname, wildspec);
return G.matchname; /* but maybe filespec was not a wildcard */
}
strncpy(G.dirname, wildspec, G.dirnamelen);
G.dirname[G.dirnamelen] = '\0'; /* terminate for strcpy below */
G.have_dirname = TRUE;
}
Trace((stderr, "do_wild: dirname = [%s]\n", G.dirname));
if ((G.wild_dir = (zvoid *)Opendir(G.dirname)) != NULL) {
while ((file = Readdir((zDIR *)G.wild_dir)) != NULL) {
Trace((stderr, "do_wild: Readdir returns %s\n", file->d_name));
if (match(file->d_name, G.wildname, 1)) { /* 1 == ignore case */
Trace((stderr, "do_wild: match() succeeds\n"));
if (G.have_dirname) {
strcpy(G.matchname, G.dirname);
strcpy(G.matchname+G.dirnamelen, file->d_name);
} else
strcpy(G.matchname, file->d_name);
return G.matchname;
}
}
/* if we get to here directory is exhausted, so close it */
Closedir((zDIR *)G.wild_dir);
G.wild_dir = NULL;
}
Trace((stderr, "do_wild: Opendir(%s) returns NULL\n", G.dirname));
/* return the raw wildspec in case that works (e.g., directory not
* searchable, but filespec was not wild and file is readable) */
strcpy(G.matchname, wildspec);
return G.matchname;
}
/* last time through, might have failed opendir but returned raw wildspec */
if (G.wild_dir == NULL) {
G.notfirstcall = FALSE; /* reset for new wildspec */
if (G.have_dirname)
free(G.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((zDIR *)G.wild_dir)) != NULL)
if (match(file->d_name, G.wildname, 1)) { /* 1 == ignore case */
if (G.have_dirname) {
/* strcpy(G.matchname, G.dirname); */
strcpy(G.matchname+G.dirnamelen, file->d_name);
} else
strcpy(G.matchname, file->d_name);
return G.matchname;
}
Closedir((zDIR *)G.wild_dir); /* at least one entry read; nothing left */
G.wild_dir = NULL;
G.notfirstcall = FALSE; /* reset for new wildspec */
if (G.have_dirname)
free(G.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(__G__ renamed) /* return 0 if no error, 1 if caution (filename trunc), */
__GDEF
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 error;
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 */
G.create_dirs = (!G.fflag || renamed);
G.created_dir = FALSE; /* not yet */
G.renamed_fullpath = FALSE;
G.fnlen = strlen(G.filename);
if (renamed) {
cp = G.filename - 1; /* point to beginning of renamed name... */
while (*++cp)
if (*cp == '\\') /* convert backslashes to forward */
*cp = '/';
cp = G.filename;
/* use temporary rootpath if user gave full pathname */
if (G.filename[0] == '/') {
G.renamed_fullpath = TRUE;
pathcomp[0] = '/'; /* copy the '/' and terminate */
pathcomp[1] = '\0';
++cp;
} else if (isalpha(G.filename[0]) && G.filename[1] == ':') {
G.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(__G__ pathcomp, INIT)) != 0) /* init 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 (G.jflag) /* junking directories */
cp = (char *)strrchr(G.filename, '/');
if (cp == NULL) /* no '/' or not junking dirs */
cp = G.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) {
switch (workch) {
case '/': /* can assume -j flag not given */
*pp = '\0';
if ((error = checkdir(__G__ pathcomp, APPEND_DIR)) > 1)
return error;
pp = pathcomp; /* reset conversion buffer for next piece */
lastsemi = NULL; /* leave directory semi-colons alone */
break;
case ':': /* drive names not stored in zipfile, */
case '<': /* so no colons allowed */
case '>': /* no redirection symbols allowed either */
case '|': /* no pipe signs allowed */
case '"': /* no double quotes allowed */
case '?': /* no wildcards allowed */
case '*':
*pp++ = '_'; /* these rules apply equally to FAT and NTFS */
break;
case ';': /* start of VMS version? */
lastsemi = pp; /* remove VMS version later... */
*pp++ = ';'; /* but keep semicolon for now */
break;
case ' ': /* keep spaces unless specifically */
/* NT cannot create filenames with spaces on FAT volumes */
if (G.sflag || IsVolumeOldFAT(G.filename))
*pp++ = '_';
else
*pp++ = ' ';
break;
default:
/* allow European characters in filenames: */
if (isprint(workch) || workch >= 127)
*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 (!G.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 (G.filename[G.fnlen-1] == '/') {
checkdir(__G__ G.filename, GETPATH);
if (G.created_dir && QCOND2) {
Info(slide, 0, ((char *)slide, " creating: %-22s\n", G.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') {
Info(slide, 1, ((char *)slide, "mapname: conversion of %s failed\n",
G.filename));
return 3;
}
checkdir(__G__ pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */
checkdir(__G__ G.filename, GETPATH);
Trace((stderr, "mapname returns with filename = [%s] (error = %d)\n\n",
G.filename, error));
if (G.pInfo->vollabel) { /* set the volume label now */
char drive[3];
/* Build a drive string, e.g. "b:" */
drive[0] = (char)('a' + G.nLabelDrive - 1);
drive[1] = ':';
drive[2] = '\0';
if (QCOND2)
Info(slide, 0, ((char *)slide, "labelling %s %-22s\n", drive,
G.filename));
if (!SetVolumeLabel(drive, G.filename)) {
Info(slide, 1, ((char *)slide,
"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(__G)
__GDEF
{
int len;
#if (defined(_MSC_VER) || defined(__WATCOMC__))
char buf[80];
#endif
len = sprintf((char *)slide, 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++ v1.1)",
# elif (_MSC_VER == 850)
"(Windows NT v3.5 SDK)",
# elif (_MSC_VER == 900)
"(Visual C++ v2.x)",
# elif (_MSC_VER == 1000)
"(Visual C++ v4.0)",
# elif (_MSC_VER == 1010)
"(Visual C++ v4.1)",
# elif (_MSC_VER > 800)
"(Visual C++)",
# else
"(bad version)",
# endif
#elif defined(__WATCOMC__)
# if (__WATCOMC__ % 10 > 0)
(sprintf(buf, "Watcom C/C++ %d.%02d", __WATCOMC__ / 100,
__WATCOMC__ % 100), buf), "",
# else
(sprintf(buf, "Watcom C/C++ %d.%d", __WATCOMC__ / 100,
(__WATCOMC__ % 100) / 10), buf), "",
# endif
#elif defined(__BORLANDC__)
"Borland C++",
# if (__BORLANDC__ < 0x0200)
" 1.0",
# elif (__BORLANDC__ == 0x0200)
" 2.0",
# elif (__BORLANDC__ == 0x0400)
" 3.0",
# elif (__BORLANDC__ == 0x0410) /* __BCPLUSPLUS__ = 0x0310 */
" 3.1",
# elif (__BORLANDC__ == 0x0452) /* __BCPLUSPLUS__ = 0x0320 */
" 4.0 or 4.02",
# elif (__BORLANDC__ == 0x0460) /* __BCPLUSPLUS__ = 0x0340 */
" 4.5",
# elif (__BORLANDC__ == 0x0500) /* GRR: assume this will stay sync'd? */
" 5.0",
# else
" later than 5.0",
# endif
#else /* !_MSC_VER, !__WATCOMC__ */
"unknown compiler (SDK?)", "",
#endif /* ?compilers */
"\n\tWindows 95 / NT", " (32-bit)",
#ifdef __DATE__
" on ", __DATE__
#else
"", ""
#endif
);
(*G.message)((zvoid *)&G, slide, (ulg)len, 0);
return;
} /* end function version() */
#endif /* !SFX */