reactos/modules/rosapps/applications/explorer-old/shell/unixfs.cpp

224 lines
4.5 KiB
C++

/*
* Copyright 2003, 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
//
// Explorer clone
//
// unixfs.cpp
//
// Martin Fuchs, 23.07.2003
//
#ifdef __WINE__
#include <precomp.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->_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
bool UnixEntry::get_path(PTSTR path, size_t path_count) const
{
int level = 0;
size_t len = 0;
if (!path || path_count==0)
return false;
if ( path_count > 1 )
{
for(const Entry* entry=this; entry; level++) {
LPCTSTR name = entry->_data.cFileName;
size_t l = 0;
for(LPCTSTR s=name; *s && *s!=TEXT('/'); s++)
++l;
if (entry->_up) {
if (l > 0) {
if ( len+l+1 >= path_count )
{
/* compare to 2 here because of terminator plus the '\\' we prepend */
if ( l + 2 > path_count )
len = 0;
else
len = path_count - l - 2;
}
memmove(path+l+1, path, len*sizeof(TCHAR));
/* compare to 2 here because of terminator plus the '\\' we prepend */
if ( l+2 >= path_count )
l = path_count - 2;
memcpy(path+1, name, l*sizeof(TCHAR));
len += l+1;
path[0] = TEXT('/');
}
entry = entry->_up;
} else {
if ( len+l >= path_count )
{
if ( l + 1 > path_count )
len = 0;
else
len = path_count - l - 1;
}
memmove(path+l, path, len*sizeof(TCHAR));
if ( l+1 >= path_count )
l = path_count - 1;
memcpy(path, name, l*sizeof(TCHAR));
len += l;
break;
}
}
if ( !level && (len+1 < path_count) )
path[len++] = TEXT('/');
}
path[len] = TEXT('\0');
return true;
}
#endif // __WINE__