diff options
Diffstat (limited to 'kdecore/ksavefile.cpp')
| -rw-r--r-- | kdecore/ksavefile.cpp | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/kdecore/ksavefile.cpp b/kdecore/ksavefile.cpp deleted file mode 100644 index 72625a9ca..000000000 --- a/kdecore/ksavefile.cpp +++ /dev/null @@ -1,230 +0,0 @@ -/* - This file is part of the KDE libraries - Copyright (c) 1999 Waldo Bastian <bastian@kde.org> - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public - License version 2 as published by the Free Software Foundation. - - 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public License - along with this library; see the file COPYING.LIB. If not, write to - the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. -*/ - -#include <config.h> - -#include <sys/types.h> - -#ifdef HAVE_SYS_STAT_H -#include <sys/stat.h> -#endif - -#include <unistd.h> -#include <fcntl.h> - -#ifdef HAVE_TEST -#include <test.h> -#endif - -#include <tqdatetime.h> -#include <tqdir.h> - -#include <kde_file.h> -#include "kapplication.h" -#include "ksavefile.h" -#include "kstandarddirs.h" - -KSaveFile::KSaveFile(const TQString &filename, int mode) - : mTempFile(true) -{ - // follow symbolic link, if any - TQString real_filename = KStandardDirs::realFilePath(filename); - - // we only check here if the directory can be written to - // the actual filename isn't written to, but replaced later - // with the contents of our tempfile - if (!checkAccess(real_filename, W_OK)) - { - mTempFile.setError(EACCES); - return; - } - - if (mTempFile.create(real_filename, TQString::tqfromLatin1(".new"), mode)) - { - mFileName = real_filename; // Set filename upon success - - // if we're overwriting an existing file, ensure temp file's - // permissions are the same as existing file so the existing - // file's permissions are preserved - KDE_struct_stat stat_buf; - if (KDE_stat(TQFile::encodeName(real_filename), &stat_buf)==0) - { - // But only if we own the existing file - if (stat_buf.st_uid == getuid()) - { - bool changePermission = true; - if (stat_buf.st_gid != getgid()) - { - if (fchown(mTempFile.handle(), (uid_t) -1, stat_buf.st_gid) != 0) - { - // Use standard permission if we can't set the group - changePermission = false; - } - } - if (changePermission) - fchmod(mTempFile.handle(), stat_buf.st_mode); - } - } - } -} - -KSaveFile::~KSaveFile() -{ - if (mTempFile.bOpen) - close(); // Close if we were still open -} - -TQString -KSaveFile::name() const -{ - return mFileName; -} - -void -KSaveFile::abort() -{ - mTempFile.close(); - mTempFile.unlink(); -} - -bool -KSaveFile::close() -{ - if (mTempFile.name().isEmpty() || mTempFile.handle()==-1) - return false; // Save was aborted already - if (!mTempFile.sync()) - { - abort(); - return false; - } - if (mTempFile.close()) - { - if (0==KDE_rename(TQFile::encodeName(mTempFile.name()), TQFile::encodeName(mFileName))) - return true; // Success! - mTempFile.setError(errno); - } - // Something went wrong, make sure to delete the interim file. - mTempFile.unlink(); - return false; -} - -static int -write_all(int fd, const char *buf, size_t len) -{ - while (len > 0) - { - int written = write(fd, buf, len); - if (written < 0) - { - if (errno == EINTR) - continue; - return -1; - } - buf += written; - len -= written; - } - return 0; -} - -bool KSaveFile::backupFile( const TQString& qFilename, const TQString& backupDir, - const TQString& backupExtension) -{ - TQCString cFilename = TQFile::encodeName(qFilename); - const char *filename = cFilename.data(); - - int fd = KDE_open( filename, O_RDONLY ); - if (fd < 0) - return false; - - KDE_struct_stat buff; - if ( KDE_fstat( fd, &buff) < 0 ) - { - ::close( fd ); - return false; - } - - TQCString cBackup; - if ( backupDir.isEmpty() ) - cBackup = cFilename; - else - { - TQCString nameOnly; - int slash = cFilename.findRev('/'); - if (slash < 0) - nameOnly = cFilename; - else - nameOnly = cFilename.mid(slash + 1); - cBackup = TQFile::encodeName(backupDir); - if ( backupDir[backupDir.length()-1] != (QChar)'/' ) - cBackup += '/'; - cBackup += nameOnly; - } - cBackup += TQFile::encodeName(backupExtension); - const char *backup = cBackup.data(); - int permissions = buff.st_mode & 07777; - - if ( KDE_stat( backup, &buff) == 0) - { - if ( unlink( backup ) != 0 ) - { - ::close(fd); - return false; - } - } - - mode_t old_umask = umask(0); - int fd2 = KDE_open( backup, O_WRONLY | O_CREAT | O_EXCL, permissions | S_IWUSR); - umask(old_umask); - - if ( fd2 < 0 ) - { - ::close(fd); - return false; - } - - char buffer[ 32*1024 ]; - - while( 1 ) - { - int n = ::read( fd, buffer, 32*1024 ); - if (n == -1) - { - if (errno == EINTR) - continue; - ::close(fd); - ::close(fd2); - return false; - } - if (n == 0) - break; // Finished - - if (write_all( fd2, buffer, n)) - { - ::close(fd); - ::close(fd2); - return false; - } - } - - ::close( fd ); - - if (::close(fd2)) - return false; - return true; -} |