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Diffstat (limited to 'libkdenetwork/gpgmepp/data.cpp')
-rw-r--r-- | libkdenetwork/gpgmepp/data.cpp | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/libkdenetwork/gpgmepp/data.cpp b/libkdenetwork/gpgmepp/data.cpp new file mode 100644 index 000000000..52c96544b --- /dev/null +++ b/libkdenetwork/gpgmepp/data.cpp @@ -0,0 +1,160 @@ +/* data.cpp - wraps a gpgme data object + Copyright (C) 2003 Klarälvdalens 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 ); +} |