|
|
/* data-fd.c - A file descripor based data object.
|
|
|
Copyright (C) 2002, 2004 g10 Code GmbH
|
|
|
|
|
|
This file is part of GPGME.
|
|
|
|
|
|
GPGME 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.
|
|
|
|
|
|
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
|
|
|
Lesser General Public License for more details.
|
|
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
|
License along with this program; if not, write to the Free Software
|
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
|
02110-1301, USA. */
|
|
|
|
|
|
#if HAVE_CONFIG_H
|
|
|
#include <config.h>
|
|
|
#endif
|
|
|
|
|
|
#include <unistd.h>
|
|
|
#include <sys/types.h>
|
|
|
|
|
|
#include "data.h"
|
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
fd_read (gpgme_data_t dh, void *buffer, size_t size)
|
|
|
{
|
|
|
return read (dh->data.fd, buffer, size);
|
|
|
}
|
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
fd_write (gpgme_data_t dh, const void *buffer, size_t size)
|
|
|
{
|
|
|
return write (dh->data.fd, buffer, size);
|
|
|
}
|
|
|
|
|
|
|
|
|
static off_t
|
|
|
fd_seek (gpgme_data_t dh, off_t offset, int whence)
|
|
|
{
|
|
|
return lseek (dh->data.fd, offset, whence);
|
|
|
}
|
|
|
|
|
|
|
|
|
static int
|
|
|
fd_get_fd (gpgme_data_t dh)
|
|
|
{
|
|
|
return (dh->data.fd);
|
|
|
}
|
|
|
|
|
|
|
|
|
static struct _gpgme_data_cbs fd_cbs =
|
|
|
{
|
|
|
fd_read,
|
|
|
fd_write,
|
|
|
fd_seek,
|
|
|
NULL,
|
|
|
fd_get_fd
|
|
|
};
|
|
|
|
|
|
|
|
|
gpgme_error_t
|
|
|
gpgme_data_new_from_fd (gpgme_data_t *dh, int fd)
|
|
|
{
|
|
|
gpgme_error_t err = _gpgme_data_new (dh, &fd_cbs);
|
|
|
if (err)
|
|
|
return err;
|
|
|
|
|
|
(*dh)->data.fd = fd;
|
|
|
return 0;
|
|
|
}
|
