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win32zip.c

/*
  Copyright (c) 1990-2005 Info-ZIP.  All rights reserved.

  See the accompanying file LICENSE, version 2004-May-22 or later
  (the contents of which are also included in zip.h) for terms of use.
  If, for some reason, both of these files are missing, the Info-ZIP license
  also may be found at:  ftp://ftp.info-zip.org/pub/infozip/license.html
*/
#ifndef UTIL    /* this file contains nothing used by UTIL */

#include "../zip.h"

#include <ctype.h>
#if !defined(__EMX__) && !defined(__CYGWIN__)
#include <direct.h>     /* for rmdir() */
#endif
#include <time.h>

#ifndef __BORLANDC__
#include <sys/utime.h>
#else
#include <utime.h>
#endif
#include <windows.h> /* for findfirst/findnext stuff */
#ifdef __RSXNT__
#  include "../win32/rsxntwin.h"
#endif

#include <io.h>

#define PAD           0
#define PATH_END      '/'
#define HIDD_SYS_BITS (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)


typedef struct zdirent {
  ush    d_date, d_time;
  ulg    d_size;
  char   d_attr;
  char   d_name[MAX_PATH];
  int    d_first;
  HANDLE d_hFindFile;
} zDIR;

#include "../win32/win32zip.h"
#include "../win32/nt.h"

/* Local functions */
local zDIR           *Opendir      OF((ZCONST char *n));
local struct zdirent *Readdir      OF((zDIR *d));
local void            Closedir     OF((zDIR *d));

local char           *readd        OF((zDIR *));
local int             wild_recurse OF((char *, char *));
#ifdef NTSD_EAS
   local void GetSD OF((char *path, char **bufptr, size_t *size,
                        char **cbufptr, size_t *csize));
#endif
#ifdef USE_EF_UT_TIME
   local int GetExtraTime OF((struct zlist far *z, iztimes *z_utim));
#endif

/* Module level variables */
extern char *label /* = NULL */ ;       /* defined in fileio.c */
local ulg label_time = 0;
local ulg label_mode = 0;
local time_t label_utim = 0;

/* Module level constants */
local ZCONST char wild_match_all[] = "*.*";

local zDIR *Opendir(n)
ZCONST char *n;          /* directory to open */
/* Start searching for files in the MSDOS directory n */
{
  zDIR *d;              /* malloc'd return value */
  char *p;              /* malloc'd temporary string */
  char *q;
  WIN32_FIND_DATA fd;

  if ((d = (zDIR *)malloc(sizeof(zDIR))) == NULL ||
      (p = malloc(strlen(n) + (2 + sizeof(wild_match_all)))) == NULL) {
    if (d != NULL) free((zvoid *)d);
    return NULL;
  }
  strcpy(p, n);
  q = p + strlen(p);
  if ((q - p) > 0 && MBSRCHR(p, ':') == (q - 1))
      *q++ = '.';
  if ((q - p) > 0 && MBSRCHR(p, '/') != (q - 1))
    *q++ = '/';
  strcpy(q, wild_match_all);

#ifdef __RSXNT__        /* RSXNT/EMX C rtl uses OEM charset */
  OemToAnsi(p, p);
#endif
  d->d_hFindFile = FindFirstFile(p, &fd);
  free((zvoid *)p);

  if (d->d_hFindFile == INVALID_HANDLE_VALUE)
  {
    free((zvoid *)d);
    return NULL;
  }

  strcpy(d->d_name, fd.cFileName);
  d->d_attr = (unsigned char) fd.dwFileAttributes;
  d->d_first = 1;
  return d;
}

local struct zdirent *Readdir(d)
zDIR *d;                /* directory stream to read from */
/* 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);
    d->d_attr = (unsigned char) fd.dwFileAttributes;
  }
#ifdef __RSXNT__        /* RSXNT/EMX C rtl uses OEM charset */
  AnsiToOem(d->d_name, d->d_name);
#endif
  return (struct zdirent *)d;
}

local void Closedir(d)
zDIR *d;                /* directory stream to close */
{
  FindClose(d->d_hFindFile);
  free((zvoid *)d);
}


local char *readd(d)
zDIR *d;                /* directory stream to read from */
/* Return a pointer to the next name in the directory stream d, or NULL if
   no more entries or an error occurs. */
{
  struct zdirent *e;

  do
    e = Readdir(d);
  while (!hidden_files && e && e->d_attr & HIDD_SYS_BITS);
  return e == NULL ? (char *) NULL : e->d_name;
}


#define ONENAMELEN 255

/* whole is a pathname with wildcards, wildtail points somewhere in the  */
/* middle of it.  All wildcards to be expanded must come AFTER wildtail. */

local int wild_recurse(whole, wildtail)
char *whole;
char *wildtail;
{
    zDIR *dir;
    char *subwild, *name, *newwhole = NULL, *glue = NULL, plug = 0, plug2;
    extent newlen;
    int amatch = 0, e = ZE_MISS;

    if (!isshexp(wildtail)) {
        if (GetFileAttributes(whole) != 0xFFFFFFFF) {    /* file exists? */
#ifdef __RSXNT__  /* RSXNT/EMX C rtl uses OEM charset */
            AnsiToOem(whole, whole);
#endif
            return procname(whole, 0);
        }
        else
            return ZE_MISS;                     /* woops, no wildcards! */
    }

    /* back up thru path components till existing dir found */
    do {
        name = wildtail + strlen(wildtail) - 1;
        for (;;)
            if (name-- <= wildtail || *name == PATH_END) {
                subwild = name + 1;
                plug2 = *subwild;
                *subwild = 0;
                break;
            }
        if (glue)
            *glue = plug;
        glue = subwild;
        plug = plug2;
        dir = Opendir(whole);
    } while (!dir && subwild > wildtail);
    wildtail = subwild;                 /* skip past non-wild components */

    if ((subwild = MBSCHR(wildtail + 1, PATH_END)) != NULL) {
        /* this "+ 1" dodges the   ^^^ hole left by *glue == 0 */
        *(subwild++) = 0;               /* wildtail = one component pattern */
        newlen = strlen(whole) + strlen(subwild) + (ONENAMELEN + 2);
    } else
        newlen = strlen(whole) + (ONENAMELEN + 1);
    if (!dir || ((newwhole = malloc(newlen)) == NULL)) {
        if (glue)
            *glue = plug;
        e = dir ? ZE_MEM : ZE_MISS;
        goto ohforgetit;
    }
    strcpy(newwhole, whole);
    newlen = strlen(newwhole);
    if (glue)
        *glue = plug;                           /* repair damage to whole */
    if (!isshexp(wildtail)) {
        e = ZE_MISS;                            /* non-wild name not found */
        goto ohforgetit;
    }

    while ((name = readd(dir)) != NULL) {
        if (strcmp(name, ".") && strcmp(name, "..") &&
            MATCH(wildtail, name, 0)) {
            strcpy(newwhole + newlen, name);
            if (subwild) {
                name = newwhole + strlen(newwhole);
                *(name++) = PATH_END;
                strcpy(name, subwild);
                e = wild_recurse(newwhole, name);
            } else
                e = procname(newwhole, 0);
            newwhole[newlen] = 0;
            if (e == ZE_OK)
                amatch = 1;
            else if (e != ZE_MISS)
                break;
        }
    }

  ohforgetit:
    if (dir) Closedir(dir);
    if (subwild) *--subwild = PATH_END;
    if (newwhole) free(newwhole);
    if (e == ZE_MISS && amatch)
        e = ZE_OK;
    return e;
}

int wild(w)
char *w;                /* path/pattern to match */
/* If not in exclude mode, expand the pattern based on the contents of the
   file system.  Return an error code in the ZE_ class. */
{
    char *p;              /* path */
    char *q;              /* diskless path */
    int e;                /* result */

    if (volume_label == 1) {
      volume_label = 2;
      label = getVolumeLabel((w != NULL && isascii((uch)w[0]) && w[1] == ':')
                             ? to_up(w[0]) : '\0',
                             &label_time, &label_mode, &label_utim);
      if (label != NULL)
        (void)newname(label, 0, 0);
      if (w == NULL || (isascii((uch)w[0]) && w[1] == ':' && w[2] == '\0'))
        return ZE_OK;
      /* "zip -$ foo a:" can be used to force drive name */
    }
    /* special handling of stdin request */
    if (strcmp(w, "-") == 0)   /* if compressing stdin */
        return newname(w, 0, 0);

    /* Allocate and copy pattern, leaving room to add "." if needed */
    if ((p = malloc(strlen(w) + 2)) == NULL)
        return ZE_MEM;
    strcpy(p, w);

    /* Normalize path delimiter as '/' */
    for (q = p; *q; INCSTR(q))            /* use / consistently */
        if (*q == '\\')
            *q = '/';

    /* Separate the disk part of the path */
    if ((q = MBSCHR(p, ':')) != NULL) {
        if (MBSCHR(++q, ':'))     /* sanity check for safety of wild_recurse */
            return ZE_MISS;
    } else
        q = p;

    /* Normalize bare disk names */
    if (q > p && !*q)
        strcpy(q, ".");

    /* Here we go */
    e = wild_recurse(p, q);
    free((zvoid *)p);
    return e;
}

int procname(n, caseflag)
char *n;                /* name to process */
int caseflag;           /* true to force case-sensitive match */
/* Process a name or sh expression to operate on (or exclude).  Return
   an error code in the ZE_ class. */
{
  char *a;              /* path and name for recursion */
  zDIR *d;              /* directory stream from opendir() */
  char *e;              /* pointer to name from readd() */
  int m;                /* matched flag */
  char *p;              /* path for recursion */
  struct stat s;        /* result of stat() */
  struct zlist far *z;  /* steps through zfiles list */

  if (strcmp(n, "-") == 0)   /* if compressing stdin */
    return newname(n, 0, caseflag);
  else if (LSSTAT(n, &s)
#ifdef __TURBOC__
           /* For this compiler, stat() succeeds on wild card names! */
           /* Unfortunately, this causes failure on names containing */
           /* square bracket characters, which are legal in win32.   */
           || isshexp(n)
#endif
          )
  {
    /* Not a file or directory--search for shell expression in zip file */
    p = ex2in(n, 0, (int *)NULL);       /* shouldn't affect matching chars */
    m = 1;
    for (z = zfiles; z != NULL; z = z->nxt) {
      if (MATCH(p, z->iname, caseflag))
      {
        z->mark = pcount ? filter(z->zname, caseflag) : 1;
        if (verbose)
            fprintf(mesg, "zip diagnostic: %scluding %s\n",
               z->mark ? "in" : "ex", z->name);
        m = 0;
      }
    }
    free((zvoid *)p);
    return m ? ZE_MISS : ZE_OK;
  }

  /* Live name--use if file, recurse if directory */
  for (p = n; *p; INCSTR(p))    /* use / consistently */
    if (*p == '\\')
      *p = '/';
  if ((s.st_mode & S_IFDIR) == 0)
  {
    /* add or remove name of file */
    if ((m = newname(n, 0, caseflag)) != ZE_OK)
      return m;
  } else {
    /* Add trailing / to the directory name */
    if ((p = malloc(strlen(n)+2)) == NULL)
      return ZE_MEM;
    if (strcmp(n, ".") == 0 || strcmp(n, "/.") == 0) {
      *p = '\0';  /* avoid "./" prefix and do not create zip entry */
    } else {
      strcpy(p, n);
      a = p + strlen(p);
      if (lastchar(p) != '/')
        strcpy(a, "/");
      if (dirnames && (m = newname(p, 1, caseflag)) != ZE_OK) {
        free((zvoid *)p);
        return m;
      }
    }
    /* recurse into directory */
    if (recurse && (d = Opendir(n)) != NULL)
    {
      while ((e = readd(d)) != NULL) {
        if (strcmp(e, ".") && strcmp(e, ".."))
        {
          if ((a = malloc(strlen(p) + strlen(e) + 1)) == NULL)
          {
            Closedir(d);
            free((zvoid *)p);
            return ZE_MEM;
          }
          strcat(strcpy(a, p), e);
          if ((m = procname(a, caseflag)) != ZE_OK)   /* recurse on name */
          {
            if (m == ZE_MISS)
              zipwarn("name not matched: ", a);
            else
              ziperr(m, a);
          }
          free((zvoid *)a);
        }
      }
      Closedir(d);
    }
    free((zvoid *)p);
  } /* (s.st_mode & S_IFDIR) == 0) */
  return ZE_OK;
}

char *ex2in(x, isdir, pdosflag)
char *x;                /* external file name */
int isdir;              /* input: x is a directory */
int *pdosflag;          /* output: force MSDOS file attributes? */
/* Convert the external file name to a zip file name, returning the malloc'ed
   string or NULL if not enough memory. */
{
  char *n;              /* internal file name (malloc'ed) */
  char *t;              /* shortened name */
  int dosflag;


  dosflag = dosify || IsFileSystemOldFAT(x);
  if (!dosify && use_longname_ea && (t = GetLongPathEA(x)) != NULL)
  {
    x = t;
    dosflag = 0;
  }

  /* Find starting point in name before doing malloc */
  /* Strip drive specification */
  t = *x && isascii((uch)*x) && *(x + 1) == ':' ? x + 2 : x;
  /* Strip "//host/share/" part of a UNC name */
  if ((!strncmp(x,"//",2) || !strncmp(x,"\\\\",2)) &&
      (x[2] != '\0' && x[2] != '/' && x[2] != '\\')) {
    n = x + 2;
    while (*n != '\0' && *n != '/' && *n != '\\')
      INCSTR(n);        /* strip host name */
    if (*n != '\0') {
      INCSTR(n);
      while (*n != '\0' && *n != '/' && *n != '\\')
        INCSTR(n);      /* strip `share' name */
    }
    if (*n != '\0')
      t = n + CLEN(n);
  }
  /* Strip leading "/" to convert an absolute path into a relative path */
  while (*t == '/' || *t == '\\')
    t++;
  /* Strip leading "./" as well as drive letter */
  while (*t == '.' && (t[1] == '/' || t[1] == '\\'))
    t += 2;

  /* Make changes, if any, to the copied name (leave original intact) */
  for (n = t; *n; INCSTR(n))
    if (*n == '\\')
      *n = '/';

  if (!pathput)
    t = last(t, PATH_END);

  /* Malloc space for internal name and copy it */
  if ((n = malloc(strlen(t) + 1)) == NULL)
    return NULL;
  strcpy(n, t);

  if (dosify)
    msname(n);

  /* Returned malloc'ed name */
  if (pdosflag)
    *pdosflag = dosflag;
#ifdef __RSXNT__ /* RSXNT/EMX C rtl uses OEM charset */
  OemToAnsi(n, n);
#endif
  return n;
}


char *in2ex(n)
char *n;                /* internal file name */
/* Convert the zip file name to an external file name, returning the malloc'ed
   string or NULL if not enough memory. */
{
  char *x;              /* external file name */

  if ((x = malloc(strlen(n) + 1 + PAD)) == NULL)
    return NULL;
  strcpy(x, n);
#ifdef __RSXNT__ /* RSXNT/EMX C rtl uses OEM charset */
  AnsiToOem(x, x);
#endif
  return x;
}


void stamp(f, d)
char *f;                /* name of file to change */
ulg d;                  /* dos-style time to change it to */
/* Set last updated and accessed time of file f to the DOS time d. */
{
#if defined(__TURBOC__) && !defined(__BORLANDC__)
  int h;                /* file handle */

  if ((h = open(f, 0)) != -1)
  {
    setftime(h, (struct ftime *)&d);
    close(h);
  }
#else /* !__TURBOC__ */

  struct utimbuf u;     /* argument for utime() */

  /* Convert DOS time to time_t format in u.actime and u.modtime */
  u.actime = u.modtime = dos2unixtime(d);

  /* Set updated and accessed times of f */
  utime(f, &u);
#endif /* ?__TURBOC__ */
}


ulg filetime(f, a, n, t)
char *f;                /* name of file to get info on */
ulg *a;                 /* return value: file attributes */
long *n;                /* return value: file size */
iztimes *t;             /* return value: access, modific. and creation times */
/* If file *f does not exist, return 0.  Else, return the file's last
   modified date and time as an MSDOS date and time.  The date and
   time is returned in a long with the date most significant to allow
   unsigned integer comparison of absolute times.  Also, if a is not
   a NULL pointer, store the file attributes there, with the high two
   bytes being the Unix attributes, and the low byte being a mapping
   of that to DOS attributes.  If n is not NULL, store the file size
   there.  If t is not NULL, the file's access, modification and creation
   times are stored there as UNIX time_t values.
   If f is "-", use standard input as the file. If f is a device, return
   a file size of -1 */
{
  struct stat s;        /* results of stat() */
  char *name;
  unsigned int len = strlen(f);
  int isstdin = !strcmp(f, "-");

  if (f == label) {
    if (a != NULL)
      *a = label_mode;
    if (n != NULL)
      *n = -2L; /* convention for a label name */
    if (t != NULL)
      t->atime = t->mtime = t->ctime = label_utim;
    return label_time;
  }

  if ((name = malloc(len + 1)) == NULL) {
    ZIPERR(ZE_MEM, "filetime");
  }
  strcpy(name, f);
  if (MBSRCHR(name, '/') == (name + len - 1))
    name[len - 1] = '\0';
  /* not all systems allow stat'ing a file with / appended */

  if (isstdin) {
    if (fstat(fileno(stdin), &s) != 0) {
      free(name);
      error("fstat(stdin)");
    }
    time((time_t *)&s.st_mtime);       /* some fstat()s return time zero */
  } else if (LSSTAT(name, &s) != 0) {
             /* Accept about any file kind including directories
              * (stored with trailing / with -r option)
              */
    free(name);
    return 0;
  }

  if (a != NULL) {
    *a = ((ulg)s.st_mode << 16) | (isstdin ? 0L : (ulg)GetFileMode(name));
  }
  if (n != NULL)
    *n = (s.st_mode & S_IFMT) == S_IFREG ? s.st_size : -1L;
  if (t != NULL) {
    t->atime = s.st_atime;
    t->mtime = s.st_mtime;
    t->ctime = s.st_ctime;
  }

  free(name);

  return unix2dostime((time_t *)&s.st_mtime);
}


#ifdef NTSD_EAS

local void GetSD(char *path, char **bufptr, size_t *size,
                        char **cbufptr, size_t *csize)
{
  unsigned char stackbuffer[NTSD_BUFFERSIZE];
  unsigned long bytes = NTSD_BUFFERSIZE;
  unsigned char *buffer = stackbuffer;
  unsigned char *DynBuffer = NULL;
  long cbytes;
  PEF_NTSD_L_HEADER pLocalHeader;
  PEF_NTSD_C_HEADER pCentralHeader;
  VOLUMECAPS VolumeCaps;

  /* check target volume capabilities */
  if (!ZipGetVolumeCaps(path, path, &VolumeCaps) ||
     !(VolumeCaps.dwFileSystemFlags & FS_PERSISTENT_ACLS)) {
    return;
  }

  VolumeCaps.bUsePrivileges = use_privileges;
  VolumeCaps.dwFileAttributes = 0;
  /* should set to file attributes, if possible */

  if (!SecurityGet(path, &VolumeCaps, buffer, (LPDWORD)&bytes)) {

    /* try to malloc the buffer if appropriate */
    if(GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
        DynBuffer = malloc(bytes);
        if(DynBuffer == NULL) return;

        buffer = DynBuffer; /* switch to the new buffer and try again */

        if(!SecurityGet(path, &VolumeCaps, buffer, (LPDWORD)&bytes)) {
            free(DynBuffer);
            return;
        }

    } else {
        return; /* bail */
    }
  }

  /* # bytes to compress: compress type, CRC, data bytes */
  cbytes = (2 + 4 + EB_DEFLAT_EXTRA) + bytes;


  /* our two possible failure points.  don't allow trashing of any data
     if either fails - notice that *size and *csize don't get updated.
     *bufptr leaks if malloc() was used and *cbufptr alloc fails - this
     isn't relevant because it's probably indicative of a bigger problem. */

  if(*size)
    *bufptr = realloc(*bufptr, *size + EF_NTSD_L_LEN + cbytes);
  else
    *bufptr = malloc(EF_NTSD_L_LEN + cbytes);

  if(*csize)
    *cbufptr = realloc(*cbufptr, *csize + EF_NTSD_C_LEN);
  else
    *cbufptr = malloc(EF_NTSD_C_LEN);

  if(*bufptr == NULL || *cbufptr == NULL) {
    if(DynBuffer) free(DynBuffer);
    return;
  }

  /* local header */

  pLocalHeader = (PEF_NTSD_L_HEADER) (*bufptr + *size);

  cbytes = memcompress(((char *)pLocalHeader + EF_NTSD_L_LEN), cbytes,
                       (char *)buffer, bytes);

  *size += EF_NTSD_L_LEN + cbytes;

  pLocalHeader->nID = EF_NTSD;
  pLocalHeader->nSize = (USHORT)(EF_NTSD_L_LEN - EB_HEADSIZE
                                 + cbytes);
  pLocalHeader->lSize = bytes; /* uncompressed size */
  pLocalHeader->Version = 0;

  /* central header */

  pCentralHeader = (PEF_NTSD_C_HEADER) (*cbufptr + *csize);
  *csize += EF_NTSD_C_LEN;

  pCentralHeader->nID = EF_NTSD;
  pCentralHeader->nSize = EF_NTSD_C_LEN - EB_HEADSIZE;  /* sbz */
  pCentralHeader->lSize = bytes;

  if (noisy)
    printf(" (%ld bytes security)", bytes);

  if(DynBuffer) free(DynBuffer);
}
#endif /* NTSD_EAS */


#ifdef USE_EF_UT_TIME

#define EB_L_UT_SIZE    (EB_HEADSIZE + EB_UT_LEN(3))
#define EB_C_UT_SIZE    (EB_HEADSIZE + EB_UT_LEN(1))

local int GetExtraTime(struct zlist far *z, iztimes *z_utim)
{
  char *eb_l_ptr;
  char *eb_c_ptr;
  ulg ultime;
  /* brain-dead IBM compiler defines time_t as "double", so we have to convert
   * it into unsigned long integer number...
   */

#ifdef IZ_CHECK_TZ
  if (!zp_tz_is_valid) return ZE_OK;    /* skip silently if no valid TZ info */
#endif

  if(z->ext)
    eb_l_ptr = realloc(z->extra, (z->ext + EB_L_UT_SIZE));
  else
    eb_l_ptr = malloc(EB_L_UT_SIZE);

  if (eb_l_ptr == NULL)
    return ZE_MEM;

  if(z->cext)
    eb_c_ptr = realloc(z->cextra, (z->cext + EB_C_UT_SIZE));
  else
    eb_c_ptr = malloc(EB_C_UT_SIZE);

  if (eb_c_ptr == NULL)
    return ZE_MEM;

  z->extra = eb_l_ptr;
  eb_l_ptr += z->ext;
  z->ext += EB_L_UT_SIZE;

  eb_l_ptr[0]  = 'U';
  eb_l_ptr[1]  = 'T';
  eb_l_ptr[2]  = EB_UT_LEN(3);          /* length of data part of e.f. */
  eb_l_ptr[3]  = 0;
  eb_l_ptr[4]  = EB_UT_FL_MTIME | EB_UT_FL_ATIME | EB_UT_FL_CTIME;
  ultime = (ulg)z_utim->mtime;
  eb_l_ptr[5]  = (char)(ultime);
  eb_l_ptr[6]  = (char)(ultime >> 8);
  eb_l_ptr[7]  = (char)(ultime >> 16);
  eb_l_ptr[8]  = (char)(ultime >> 24);
  ultime = (ulg)z_utim->atime;
  eb_l_ptr[9]  = (char)(ultime);
  eb_l_ptr[10] = (char)(ultime >> 8);
  eb_l_ptr[11] = (char)(ultime >> 16);
  eb_l_ptr[12] = (char)(ultime >> 24);
  ultime = (ulg)z_utim->ctime;
  eb_l_ptr[13] = (char)(ultime);
  eb_l_ptr[14] = (char)(ultime >> 8);
  eb_l_ptr[15] = (char)(ultime >> 16);
  eb_l_ptr[16] = (char)(ultime >> 24);

  z->cextra = eb_c_ptr;
  eb_c_ptr += z->cext;
  z->cext += EB_C_UT_SIZE;

  memcpy(eb_c_ptr, eb_l_ptr, EB_C_UT_SIZE);
  eb_c_ptr[EB_LEN] = EB_UT_LEN(1);

  return ZE_OK;
}

#endif /* USE_EF_UT_TIME */



int set_extra_field(z, z_utim)
  struct zlist far *z;
  iztimes *z_utim;
  /* create extra field and change z->att if desired */
{

#ifdef NTSD_EAS
  if(ZipIsWinNT()) {
    /* store SECURITY_DECRIPTOR data in local header,
       and size only in central headers */
    GetSD(z->name, &z->extra, &z->ext, &z->cextra, &z->cext);
  }
#endif /* NTSD_EAS */

#ifdef USE_EF_UT_TIME
  /* store extended time stamps in both headers */
  return GetExtraTime(z, z_utim);
#else /* !USE_EF_UT_TIME */
  return ZE_OK;
#endif /* ?USE_EF_UT_TIME */
}

int deletedir(d)
char *d;                /* directory to delete */
/* Delete the directory *d if it is empty, do nothing otherwise.
   Return the result of rmdir(), delete(), or system().
   For VMS, d must be in format [x.y]z.dir;1  (not [x.y.z]).
 */
{
    return rmdir(d);
}

#endif /* !UTIL */

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