ssize_t
sftpfs_write_file (vfs_file_handler_t * file_handler, const char *buffer, size_t count,
GError ** error)
{
ssize_t rc;
sftpfs_file_handler_data_t *file_handler_data;
sftpfs_super_data_t *super_data;
file_handler_data = (sftpfs_file_handler_data_t *) file_handler->data;
super_data = (sftpfs_super_data_t *) file_handler->ino->super->data;
file_handler->pos = (off_t) libssh2_sftp_tell64 (file_handler_data->handle);
do
{
rc = libssh2_sftp_write (file_handler_data->handle, buffer, count);
if (rc >= 0)
break;
if (rc != LIBSSH2_ERROR_EAGAIN)
{
sftpfs_ssherror_to_gliberror (super_data, rc, error);
return -1;
}
sftpfs_waitsocket (super_data, error);
if (error != NULL && *error != NULL)
return -1;
}
while (rc == LIBSSH2_ERROR_EAGAIN);
return rc;
}
bool SFtpFileEngine::atEnd() const
{
qDebug() << "atEnd()" << _fileName;
return _urlInfo.size()
>= static_cast<qint64>(libssh2_sftp_tell64(_sftp_handle));
}
off_t
sftpfs_lseek (vfs_file_handler_t * file_handler, off_t offset, int whence, GError ** error)
{
sftpfs_file_handler_data_t *file_handler_data;
switch (whence)
{
case SEEK_SET:
/* Need reopen file because:
"You MUST NOT seek during writing or reading a file with SFTP, as the internals use
outstanding packets and changing the "file position" during transit will results in
badness." */
if (file_handler->pos > offset || offset == 0)
{
sftpfs_reopen (file_handler, error);
if (error != NULL && *error != NULL)
return 0;
}
file_handler->pos = offset;
break;
case SEEK_CUR:
file_handler->pos += offset;
break;
case SEEK_END:
if (file_handler->pos > file_handler->ino->st.st_size - offset)
{
sftpfs_reopen (file_handler, error);
if (error != NULL && *error != NULL)
return 0;
}
file_handler->pos = file_handler->ino->st.st_size - offset;
break;
}
file_handler_data = (sftpfs_file_handler_data_t *) file_handler->data;
libssh2_sftp_seek64 (file_handler_data->handle, file_handler->pos);
file_handler->pos = (off_t) libssh2_sftp_tell64 (file_handler_data->handle);
return file_handler->pos;
}
ssize_t
sftpfs_read_file (vfs_file_handler_t * file_handler, char *buffer, size_t count, GError ** mcerror)
{
ssize_t rc;
sftpfs_file_handler_data_t *file_handler_data;
sftpfs_super_data_t *super_data;
mc_return_val_if_error (mcerror, -1);
if (file_handler == NULL || file_handler->data == NULL)
{
mc_propagate_error (mcerror, -1, "%s",
_("sftp: No file handler data present for reading file"));
return -1;
}
file_handler_data = file_handler->data;
super_data = (sftpfs_super_data_t *) file_handler->ino->super->data;
do
{
rc = libssh2_sftp_read (file_handler_data->handle, buffer, count);
if (rc >= 0)
break;
if (rc != LIBSSH2_ERROR_EAGAIN)
{
sftpfs_ssherror_to_gliberror (super_data, rc, mcerror);
return -1;
}
sftpfs_waitsocket (super_data, mcerror);
mc_return_val_if_error (mcerror, -1);
}
while (rc == LIBSSH2_ERROR_EAGAIN);
file_handler->pos = (off_t) libssh2_sftp_tell64 (file_handler_data->handle);
return rc;
}
