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authorTimothy Pearson <[email protected]>2011-11-16 16:06:07 -0600
committerTimothy Pearson <[email protected]>2011-11-16 16:06:07 -0600
commitbe0ca741fd12897337408d1d7a7d8f5f18e1fac9 (patch)
treeb9fa3458193a17180d8773a0204ee05ae206cd99 /libtdenetwork/gpgmepp/data.cpp
parentbbb7afdb6da2969535e7f05715e2cb95cfdc917c (diff)
downloadtdepim-be0ca741fd12897337408d1d7a7d8f5f18e1fac9.tar.gz
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+/* data.cpp - wraps a gpgme data object
+ Copyright (C) 2003 Klar�lvdalens Datakonsult AB
+
+ This file is part of GPGME++.
+
+ GPGME++ is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ GPGME++ 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GPGME++; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gpgmepp/context.h> // Error
+#include <gpgmepp/interfaces/dataprovider.h>
+#include "data_p.h"
+
+#include <gpgme.h>
+
+#ifndef NDEBUG
+#include <iostream>
+#endif
+
+GpgME::Data::Private::~Private() {
+ if ( data )
+ gpgme_data_release( data );
+}
+
+GpgME::Data GpgME::Data::null( (gpgme_data_t)0 );
+
+GpgME::Data::Data() {
+ gpgme_data_t data;
+ const gpgme_error_t e = gpgme_data_new( &data );
+ d = new Private( e ? 0 : data );
+ d->ref();
+}
+
+GpgME::Data::Data( gpgme_data_t data ) {
+ d = new Private( data );
+ d->ref();
+}
+
+GpgME::Data::Data( const Data & other )
+ : d( other.d )
+{
+ d->ref();
+}
+
+GpgME::Data::~Data() {
+ d->unref(); d = 0;
+}
+
+
+const GpgME::Data & GpgME::Data::operator=( const Data & other ) {
+ if ( this->d == other.d ) return *this;
+
+ if ( other.d )
+ other.d->ref();
+ if ( this->d )
+ this->d->unref();
+ this->d = other.d;
+
+ return *this;
+}
+
+GpgME::Data::Data( const char * buffer, size_t size, bool copy ) {
+ gpgme_data_t data;
+ const gpgme_error_t e = gpgme_data_new_from_mem( &data, buffer, size, int( copy ) );
+ d = new Private( e ? 0 : data );
+ d->ref();
+}
+
+GpgME::Data::Data( const char * filename ) {
+ gpgme_data_t data;
+ const gpgme_error_t e = gpgme_data_new_from_file( &data, filename, 1 );
+ d = new Private( e ? 0 : data );
+ d->ref();
+}
+
+GpgME::Data::Data( const char * filename, off_t offset, size_t length ) {
+ gpgme_data_t data;
+ const gpgme_error_t e = gpgme_data_new_from_filepart( &data, filename, 0, offset, length );
+ d = new Private( e ? 0 : data );
+ d->ref();
+}
+
+GpgME::Data::Data( FILE * fp ) {
+ gpgme_data_t data;
+ const gpgme_error_t e = gpgme_data_new_from_stream( &data, fp );
+ d = new Private( e ? 0 : data );
+ d->ref();
+}
+
+GpgME::Data::Data( FILE * fp, off_t offset, size_t length ) {
+ gpgme_data_t data;
+ const gpgme_error_t e = gpgme_data_new_from_filepart( &data, 0, fp, offset, length );
+ d = new Private( e ? 0 : data );
+ d->ref();
+}
+
+GpgME::Data::Data( int fd ) {
+ gpgme_data_t data;
+ const gpgme_error_t e = gpgme_data_new_from_fd( &data, fd );
+ d = new Private( e ? 0 : data );
+ d->ref();
+}
+
+GpgME::Data::Data( DataProvider * dp ) {
+ d = new Private();
+ d->ref();
+ if ( !dp )
+ return;
+ if ( !dp->isSupported( DataProvider::Read ) )
+ d->cbs.read = 0;
+ if ( !dp->isSupported( DataProvider::Write ) )
+ d->cbs.write = 0;
+ if ( !dp->isSupported( DataProvider::Seek ) )
+ d->cbs.seek = 0;
+ if ( !dp->isSupported( DataProvider::Release ) )
+ d->cbs.release = 0;
+ const gpgme_error_t e = gpgme_data_new_from_cbs( &d->data, &d->cbs, dp );
+ if ( e )
+ d->data = 0;
+#ifndef NDEBUG
+// std::cerr << "GpgME::Data(): DataProvider supports: "
+// << ( d->cbs.read ? "read" : "no read" ) << ", "
+// << ( d->cbs.write ? "write" : "no write" ) << ", "
+// << ( d->cbs.seek ? "seek" : "no seek" ) << ", "
+// << ( d->cbs.release ? "release" : "no release" ) << std::endl;
+#endif
+}
+
+
+
+bool GpgME::Data::isNull() const {
+ return !d || !d->data;
+}
+
+ssize_t GpgME::Data::read( void * buffer, size_t length ) {
+ return gpgme_data_read( d->data, buffer, length );
+}
+
+ssize_t GpgME::Data::write( const void * buffer, size_t length ) {
+ return gpgme_data_write( d->data, buffer, length );
+}
+
+off_t GpgME::Data::seek( off_t offset, int whence ) {
+ return gpgme_data_seek( d->data, offset, whence );
+}