update for HEAD-2003091401

[reactos.git] / subsys / system / explorer / shell / unixfs.cpp

diff --git a/subsys/system/explorer/shell/unixfs.cpp b/subsys/system/explorer/shell/unixfs.cpp
new file mode 100644 (file)
index 0000000..7b96593
--- /dev/null
+++ b/subsys/system/explorer/shell/unixfs.cpp
@@ -0,0 +1,198 @@
+/*
+ * Copyright 2003 Martin Fuchs
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+ //
+ // Explorer clone
+ //
+ // unixfs.cpp
+ //
+ // Martin Fuchs, 23.07.2003
+ //
+
+
+#ifdef __linux__
+
+#include "../utility/utility.h"
+#include "../utility/shellclasses.h"
+
+#include "entries.h"
+#include "unixfs.h"
+
+ // for UnixDirectory::read_directory()
+#include <dirent.h>
+#include <sys/stat.h>
+#include <time.h>
+
+
+void UnixDirectory::read_directory()
+{
+       Entry* first_entry = NULL;
+       Entry* last = NULL;
+       Entry* entry;
+
+       int level = _level + 1;
+
+       LPCTSTR path = (LPCTSTR)_path;
+       DIR* pdir = opendir(path);
+
+       if (pdir) {
+               struct stat st;
+               struct dirent* ent;
+               TCHAR buffer[MAX_PATH], *p;
+
+               for(p=buffer; *path; )
+                       *p++ = *path++;
+
+               if (p==buffer || p[-1]!='/')
+                       *p++ = '/';
+
+               while((ent=readdir(pdir))) {
+                       int statres = stat(buffer, &st);
+
+                       if (!statres && S_ISDIR(st.st_mode))
+                               entry = new UnixDirectory(this, buffer);
+                       else
+                               entry = new UnixEntry(this);
+
+                       if (!first_entry)
+                               first_entry = entry;
+
+                       if (last)
+                               last->_next = entry;
+
+                       lstrcpy(entry->_data.cFileName, ent->d_name);
+                       entry->_data.dwFileAttributes = ent->d_name[0]=='.'? FILE_ATTRIBUTE_HIDDEN: 0;
+
+                       strcpy(p, ent->d_name);
+
+                       if (!statres) {
+                               if (S_ISDIR(st.st_mode))
+                                       entry->_data.dwFileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
+
+                               entry->_data.nFileSizeLow = st.st_size & 0xFFFFFFFF;
+                               entry->_data.nFileSizeHigh = st.st_size >> 32;
+
+                               memset(&entry->_data.ftCreationTime, 0, sizeof(FILETIME));
+                               time_to_filetime(&st.st_atime, &entry->_data.ftLastAccessTime);
+                               time_to_filetime(&st.st_mtime, &entry->_data.ftLastWriteTime);
+
+                               entry->_bhfi.nFileIndexLow = ent->d_ino;
+                               entry->_bhfi.nFileIndexHigh = 0;
+
+                               entry->_bhfi.nNumberOfLinks = st.st_nlink;
+
+                               entry->_bhfi_valid = TRUE;
+                       } else {
+                               entry->_data.nFileSizeLow = 0;
+                               entry->_data.nFileSizeHigh = 0;
+                               entry->_bhfi_valid = FALSE;
+                       }
+
+                       entry->_down = NULL;
+                       entry->_up = this;
+                       entry->_expanded = FALSE;
+                       entry->_scanned = FALSE;
+                       entry->_level = level;
+
+                       last = entry;
+               }
+
+               last->_next = NULL;
+
+               closedir(pdir);
+       }
+
+       _down = first_entry;
+       _scanned = true;
+}
+
+
+const void* UnixDirectory::get_next_path_component(const void* p)
+{
+       LPCTSTR s = (LPCTSTR) p;
+
+       while(*s && *s!=TEXT('/'))
+               ++s;
+
+       while(*s == TEXT('/'))
+               ++s;
+
+       if (!*s)
+               return NULL;
+
+       return s;
+}
+
+
+Entry* UnixDirectory::find_entry(const void* p)
+{
+       LPCTSTR name = (LPCTSTR)p;
+
+       for(Entry*entry=_down; entry; entry=entry->_next) {
+               LPCTSTR p = name;
+               LPCTSTR q = entry->_data.cFileName;
+
+               do {
+                       if (!*p || *p==TEXT('/'))
+                               return entry;
+               } while(*p++ == *q++);
+       }
+
+       return NULL;
+}
+
+
+ // get full path of specified directory entry
+void UnixEntry::get_path(PTSTR path) const
+{
+       int level = 0;
+       int len = 0;
+
+       for(const Entry* entry=this; entry; level++) {
+               LPCTSTR name = entry->_data.cFileName;
+               int l = 0;
+
+               for(LPCTSTR s=name; *s && *s!=TEXT('/'); s++)
+                       ++l;
+
+               if (entry->_up) {
+                       if (l > 0) {
+                               memmove(path+l+1, path, len*sizeof(TCHAR));
+                               memcpy(path+1, name, l*sizeof(TCHAR));
+                               len += l+1;
+
+                               path[0] = TEXT('/');
+                       }
+
+                       entry = entry->_up;
+               } else {
+                       memmove(path+l, path, len*sizeof(TCHAR));
+                       memcpy(path, name, l*sizeof(TCHAR));
+                       len += l;
+                       break;
+               }
+       }
+
+       if (!level)
+               path[len++] = TEXT('/');
+
+       path[len] = TEXT('\0');
+}
+
+#endif // __linux__