void ExtractUnixOwner20(Archive &Arc,const wchar *FileName)
 {
   char NameA[NM];
   WideToChar(FileName,NameA,ASIZE(NameA));
 
   if (Arc.BrokenHeader)
   {
     uiMsg(UIERROR_UOWNERBROKEN,Arc.FileName,FileName);
     ErrHandler.SetErrorCode(RARX_CRC);
     return;
   }
 
   struct passwd *pw;
   errno=0; // Required by getpwnam specification if we need to check errno.
   if ((pw=getpwnam(Arc.UOHead.OwnerName))==NULL)
   {
     uiMsg(UIERROR_UOWNERGETOWNERID,Arc.FileName,GetWide(Arc.UOHead.OwnerName));
     ErrHandler.SysErrMsg();
     ErrHandler.SetErrorCode(RARX_WARNING);
     return;
   }
   uid_t OwnerID=pw->pw_uid;
 
   struct group *gr;
   errno=0; // Required by getgrnam specification if we need to check errno.
   if ((gr=getgrnam(Arc.UOHead.GroupName))==NULL)
   {
     uiMsg(UIERROR_UOWNERGETGROUPID,Arc.FileName,GetWide(Arc.UOHead.GroupName));
     ErrHandler.SysErrMsg();
     ErrHandler.SetErrorCode(RARX_CRC);
     return;
   }
   uint Attr=GetFileAttr(FileName);
   gid_t GroupID=gr->gr_gid;
 #if defined(SAVE_LINKS) && !defined(_APPLE)
   if (lchown(NameA,OwnerID,GroupID)!=0)
 #else
   if (chown(NameA,OwnerID,GroupID)!=0)
 #endif
   {
     uiMsg(UIERROR_UOWNERSET,Arc.FileName,FileName);
     ErrHandler.SetErrorCode(RARX_CREATE);
   }
   SetFileAttr(FileName,Attr);
 }
 
 
 void ExtractUnixOwner30(Archive &Arc,const wchar *FileName)
 {
   char NameA[NM];
   WideToChar(FileName,NameA,ASIZE(NameA));
 
   char *OwnerName=(char *)&Arc.SubHead.SubData[0];
   int OwnerSize=strlen(OwnerName)+1;
   int GroupSize=Arc.SubHead.SubData.Size()-OwnerSize;
   char GroupName[NM];
   strncpy(GroupName,(char *)&Arc.SubHead.SubData[OwnerSize],GroupSize);
   GroupName[GroupSize]=0;
 
   struct passwd *pw;
   if ((pw=getpwnam(OwnerName))==NULL)
   {
     uiMsg(UIERROR_UOWNERGETOWNERID,Arc.FileName,GetWide(OwnerName));
     ErrHandler.SetErrorCode(RARX_WARNING);
     return;
   }
   uid_t OwnerID=pw->pw_uid;
 
   struct group *gr;
   if ((gr=getgrnam(GroupName))==NULL)
   {
     uiMsg(UIERROR_UOWNERGETGROUPID,Arc.FileName,GetWide(GroupName));
     ErrHandler.SetErrorCode(RARX_WARNING);
     return;
   }
   uint Attr=GetFileAttr(FileName);
   gid_t GroupID=gr->gr_gid;
 #if defined(SAVE_LINKS) && !defined(_APPLE)
   if (lchown(NameA,OwnerID,GroupID)!=0)
 #else
   if (chown(NameA,OwnerID,GroupID)!=0)
 #endif
   {
     uiMsg(UIERROR_UOWNERSET,Arc.FileName,FileName);
     ErrHandler.SetErrorCode(RARX_CREATE);
   }
   SetFileAttr(FileName,Attr);
 }
 
 
 void SetUnixOwner(Archive &Arc,const wchar *FileName)
 {
   char NameA[NM];
   WideToChar(FileName,NameA,ASIZE(NameA));
 
   // First, we try to resolve symbolic names. If they are missing or cannot
   // be resolved, we try to use numeric values if any. If numeric values
   // are missing too, function fails.
   FileHeader &hd=Arc.FileHead;
   if (*hd.UnixOwnerName!=0)
   {
     struct passwd *pw;
     if ((pw=getpwnam(hd.UnixOwnerName))==NULL)
     {
       if (!hd.UnixOwnerNumeric)
       {
         uiMsg(UIERROR_UOWNERGETOWNERID,Arc.FileName,GetWide(hd.UnixOwnerName));
         ErrHandler.SetErrorCode(RARX_WARNING);
         return;
       }
     }
     else
       hd.UnixOwnerID=pw->pw_uid;
   }
   if (*hd.UnixGroupName!=0)
   {
     struct group *gr;
     if ((gr=getgrnam(hd.UnixGroupName))==NULL)
     {
       if (!hd.UnixGroupNumeric)
       {
         uiMsg(UIERROR_UOWNERGETGROUPID,Arc.FileName,GetWide(hd.UnixGroupName));
         ErrHandler.SetErrorCode(RARX_WARNING);
         return;
       }
     }
     else
       hd.UnixGroupID=gr->gr_gid;
   }
 #if defined(SAVE_LINKS) && !defined(_APPLE)
   if (lchown(NameA,hd.UnixOwnerID,hd.UnixGroupID)!=0)
 #else
   if (chown(NameA,hd.UnixOwnerID,hd.UnixGroupID)!=0)
 #endif
   {
     uiMsg(UIERROR_UOWNERSET,Arc.FileName,FileName);
     ErrHandler.SetErrorCode(RARX_CREATE);
   }
 }