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NT.C
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1993-12-19
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/*---------------------------------------------------------------------------
nt.c
WinNT-specific routines for use with Info-ZIP's UnZip 5.1 and later.
1993-09-28 Henry Gessau <henryg@kullmar.kullmar.se>
Started hacking at this. Borrowed, pilfered and plundered code from OS/2
and MS-DOS versions and from ZIP, modifying as necessary.
Last updated: 19 Dec 1993
---------------------------------------------------------------------------*/
#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 */
/**********************/ /* 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;
/* 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 != NULL )
free((void *) d);
return NULL;
}
strcat(strcpy(p, n), "/*.*");
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);
}
/**********************/
/* 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';
if ( GetDriveType(rootPathName) == DRIVE_REMOVABLE )
return TRUE;
else
return FALSE;
} /* end function isfloppy() */
/**************************/
/* Function IsVolumeFAT() */
/**************************/
static int IsVolumeFAT(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);
if ( !strncmp(strupr(tmp2), "FAT", 3) )
return TRUE;
else
return FALSE;
}
/******************************/
/* 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;
#ifdef OS2
int longdirEA;
#endif
int too_long=FALSE;
Trace((stderr, "appending dir segment [%s]\n", pathcomp));
while ((*endHPFS = *p++) != '\0') /* copy to HPFS filename */
++endHPFS;
if (IsFileNameValid(buildpathHPFS)) {
#ifdef OS2
longdirEA = FALSE;
#endif
p = pathcomp;
while ((*endFAT = *p++) != '\0') /* copy to FAT filename, too */
++endFAT;
} else {
#ifdef OS2
longdirEA = TRUE;
#endif
/* 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;
#ifdef OS2
/* only set EA if creating directory */
/* GRR: need trailing '/' before function call? */
if (longdirEA) {
int e = SetLongNameEA(buildpathFAT, pathcomp);
Trace((stderr, "APPEND_DIR: SetLongNameEA() returns %d\n", e));
}
#endif
} 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 */
}
}
#ifdef OS2
/* GRR: how can longnameEA ever be set before this point??? we don't want
* to save the original name to EAs if user renamed it, do we?
*
* if (!longnameEA && ((longnameEA = !IsFileNameValid(name)) != 0))
*/
#endif
if ( pInfo->vollabel || IsFileNameValid(buildpathHPFS)) {
#ifdef OS2
longnameEA = FALSE;
#endif
p = pathcomp;
while ((*endFAT = *p++) != '\0') /* copy to FAT filename, too */
++endFAT;
} else {
#ifdef OS2
longnameEA = TRUE;
if ((lastpathcomp = (char *)malloc(strlen(pathcomp)+1)) == NULL) {
fprintf(stderr,
"checkdir warning: can't save longname EA: out of memory\n");
longnameEA = FALSE;
error = 1; /* can't set .LONGNAME extended attribute */
} else /* used and freed in close_outfile() */
strcpy(lastpathcomp, pathcomp);
#endif
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 {
#ifdef OS2
ULONG lMap;
DosQueryCurrentDisk(&nLabelDrive, &lMap);
#else /* NT */
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;
#endif
*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).
---------------------------------------------------------------------------*/
/* GRR: for VMS and TOPS-20, allow either y]z.dir or y.z] forms; fix as
* appropriate before stat call */
/* GRR: for MS-DOS and OS/2, necessary to append '.' to path of form "x:"? */
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 { /* don't bother checking "x:." and "x:/" */
if (SSTAT(pathcomp, &statbuf) || !S_ISDIR(statbuf.st_mode))
{ /* path does not exist */
if (!create_dirs
#ifdef OLD_EXDIR
|| (!has_drive && !had_trailing_pathsep)
#endif
) {
rootlen = 0;
return 2; /* treat as stored file */
}
/* GRR: scan for wildcard characters? OS-dependent... if find any, return 2:
* treat as stored file(s) */
/* 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;
}
/*---------------------------------------------------------------------------
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() */
/************************/
/* 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() */
/************************/
/* 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);
/* GRR: for VMS, convert to internal format now or later? or never? */
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 */
/* GRR: watch out for VMS version... */
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 */
#ifdef OS2
if (sflag) /* requested to change to underscore */
#else /* NT */
/* NT cannot create filenames with spaces on FAT volumes */
if (sflag || IsVolumeFAT(filename))
#endif
*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);
#ifdef OS2
SetPathInfo(filename, lrec.last_mod_file_date,
lrec.last_mod_file_time, -1);
if (extra_field) /* zipfile extra field has extended attributes */
SetEAs(filename, extra_field);
#else /* NT */
/* 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(). */
#endif
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 */
#ifdef OS2
VOLUMELABEL FSInfoBuf;
/* GRR: "VOLUMELABEL" defined for IBM C and emx, but haven't checked MSC... */
strcpy(FSInfoBuf.szVolLabel, filename);
FSInfoBuf.cch = (BYTE)strlen(FSInfoBuf.szVolLabel);
if (QCOND2)
fprintf(stdout, "labelling %c: %-22s\n", (nLabelDrive + 'a' - 1),
filename);
if (DosSetFSInfo(nLabelDrive, FSIL_VOLSER, &FSInfoBuf,
sizeof(VOLUMELABEL)))
#else /* NT */
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))
#endif
{
fprintf(stderr, "mapname: error setting volume label\n");
return 3;
}
return 2; /* success: skip the "extraction" quietly */
}
return error;
} /* end function mapname() */