reactos/subsys/system/explorer/shell/unixfs.cpp

   1 /*
   2  * Copyright 2003, 2004 Martin Fuchs
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20  //
  21  // Explorer clone
  22  //
  23  // unixfs.cpp
  24  //
  25  // Martin Fuchs, 23.07.2003
  26  //
  27
  28
  29 #ifdef __WINE__
  30
  31 #include <precomp.h>
  32
  33 //#include "unixfs.h"
  34
  35  // for UnixDirectory::read_directory()
  36 #include <dirent.h>
  37 #include <sys/stat.h>
  38 #include <time.h>
  39
  40
  41 void UnixDirectory::read_directory()
  42 {
  43         Entry* first_entry = NULL;
  44         Entry* last = NULL;
  45         Entry* entry;
  46
  47         int level = _level + 1;
  48
  49         LPCTSTR path = (LPCTSTR)_path;
  50         DIR* pdir = opendir(path);
  51
  52         if (pdir) {
  53                 struct stat st;
  54                 struct dirent* ent;
  55                 TCHAR buffer[MAX_PATH], *p;
  56
  57                 for(p=buffer; *path; )
  58                         *p++ = *path++;
  59
  60                 if (p==buffer || p[-1]!='/')
  61                         *p++ = '/';
  62
  63                 while((ent=readdir(pdir))) {
  64                         int statres = stat(buffer, &st);
  65
  66                         if (!statres && S_ISDIR(st.st_mode))
  67                                 entry = new UnixDirectory(this, buffer);
  68                         else
  69                                 entry = new UnixEntry(this);
  70
  71                         if (!first_entry)
  72                                 first_entry = entry;
  73
  74                         if (last)
  75                                 last->_next = entry;
  76
  77                         lstrcpy(entry->_data.cFileName, ent->d_name);
  78                         entry->_data.dwFileAttributes = ent->d_name[0]=='.'? FILE_ATTRIBUTE_HIDDEN: 0;
  79
  80                         strcpy(p, ent->d_name);
  81
  82                         if (!statres) {
  83                                 if (S_ISDIR(st.st_mode))
  84                                         entry->_data.dwFileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
  85
  86                                 entry->_data.nFileSizeLow = st.st_size & 0xFFFFFFFF;
  87                                 entry->_data.nFileSizeHigh = st.st_size >> 32;
  88
  89                                 memset(&entry->_data.ftCreationTime, 0, sizeof(FILETIME));
  90                                 time_to_filetime(&st.st_atime, &entry->_data.ftLastAccessTime);
  91                                 time_to_filetime(&st.st_mtime, &entry->_data.ftLastWriteTime);
  92
  93                                 entry->_bhfi.nFileIndexLow = ent->d_ino;
  94                                 entry->_bhfi.nFileIndexHigh = 0;
  95
  96                                 entry->_bhfi.nNumberOfLinks = st.st_nlink;
  97
  98                                 entry->_bhfi_valid = TRUE;
  99                         } else {
 100                                 entry->_data.nFileSizeLow = 0;
 101                                 entry->_data.nFileSizeHigh = 0;
 102                                 entry->_bhfi_valid = FALSE;
 103                         }
 104
 105                         entry->_up = this;
 106                         entry->_expanded = FALSE;
 107                         entry->_scanned = FALSE;
 108                         entry->_level = level;
 109
 110                         last = entry;
 111                 }
 112
 113                 last->_next = NULL;
 114
 115                 closedir(pdir);
 116         }
 117
 118         _down = first_entry;
 119         _scanned = true;
 120 }
 121
 122
 123 const void* UnixDirectory::get_next_path_component(const void* p)
 124 {
 125         LPCTSTR s = (LPCTSTR) p;
 126
 127         while(*s && *s!=TEXT('/'))
 128                 ++s;
 129
 130         while(*s == TEXT('/'))
 131                 ++s;
 132
 133         if (!*s)
 134                 return NULL;
 135
 136         return s;
 137 }
 138
 139
 140 Entry* UnixDirectory::find_entry(const void* p)
 141 {
 142         LPCTSTR name = (LPCTSTR)p;
 143
 144         for(Entry*entry=_down; entry; entry=entry->_next) {
 145                 LPCTSTR p = name;
 146                 LPCTSTR q = entry->_data.cFileName;
 147
 148                 do {
 149                         if (!*p || *p==TEXT('/'))
 150                                 return entry;
 151                 } while(*p++ == *q++);
 152         }
 153
 154         return NULL;
 155 }
 156
 157
 158  // get full path of specified directory entry
 159 bool UnixEntry::get_path(PTSTR path, size_t path_count) const
 160 {
 161         int level = 0;
 162         size_t len = 0;
 163
 164         if (!path || path_count==0)
 165                 return false;
 166
 167         if ( path_count > 1 )
 168         {
 169                 for(const Entry* entry=this; entry; level++) {
 170                         LPCTSTR name = entry->_data.cFileName;
 171                         size_t l = 0;
 172
 173                         for(LPCTSTR s=name; *s && *s!=TEXT('/'); s++)
 174                                 ++l;
 175
 176                         if (entry->_up) {
 177                                 if (l > 0) {
 178                                         if ( len+l+1 >= path_count )
 179                                         {
 180                                                 /* compare to 2 here because of terminator plus the '\\' we prepend */
 181                                                 if ( l + 2 > path_count )
 182                                                         len = 0;
 183                                                 else
 184                                                         len = path_count - l - 2;
 185                                         }
 186                                         memmove(path+l+1, path, len*sizeof(TCHAR));
 187                                         /* compare to 2 here because of terminator plus the '\\' we prepend */
 188                                         if ( l+2 >= path_count )
 189                                                 l = path_count - 2;
 190                                         memcpy(path+1, name, l*sizeof(TCHAR));
 191                                         len += l+1;
 192
 193                                         path[0] = TEXT('/');
 194                                 }
 195
 196                                 entry = entry->_up;
 197                         } else {
 198                                 if ( len+l >= path_count )
 199                                 {
 200                                         if ( l + 1 > path_count )
 201                                                 len = 0;
 202                                         else
 203                                                 len = path_count - l - 1;
 204                                 }
 205                                 memmove(path+l, path, len*sizeof(TCHAR));
 206                                 if ( l+1 >= path_count )
 207                                         l = path_count - 1;
 208                                 memcpy(path, name, l*sizeof(TCHAR));
 209                                 len += l;
 210                                 break;
 211                         }
 212                 }
 213
 214                 if ( !level && (len+1 < path_count) )
 215                         path[len++] = TEXT('/');
 216         }
 217
 218         path[len] = TEXT('\0');
 219
 220         return true;
 221 }
 222
 223 #endif // __WINE__