26f7327a7f
* README: Refer to COPYING.LESSER and "each file" instead of COPYING. * COPYING.LESSER: New file. * gpgme.spec.in (%doc): Add COPYING.LESSER. * acinclude.m4, configure.ac, Makefile.am: Change license to LGPL 2.1 or later. * TODO: Add copyright notice. * README.CVS: Likewise. assuan/ 2004-12-07 Marcus Brinkmann <marcus@g10code.de> * README.1st: Add copyright notice. doc/ 2004-12-07 Marcus Brinkmann <marcus@g10code.de> * Makefile.am: Change license to LGPL. (gpgme_TEXINFOS): Replace gpl.texi with lesser.texi. * gpgme.texi: Change license to LGPL (also for documentation of GPGME's license). * lesser.texi: New file. * gpl.texi: File removed. gpgme/ 2004-12-07 Marcus Brinkmann <marcus@g10code.de> * putc_unlocked.c, funopen.c: I just claim copyright on these files and change their license to LGPL, because they are totally trivial wrapper functions. * isascii.c: Change copyright notice to the one from ctype/ctype.h in the GNU C Library (CVS Head 2004-10-10), where isascii is defined as a macro doing exactly the same as the function in this file. * memrchr.c: Update from the GNU C Library (CVS Head 2001-07-06). * stpcpy.c: Update from the GNU C Library (CVS Head 2004-10-10). * ath.c, ath-compat.c, ath.h, ath-pth.c, ath-pth-compat.c, ath-pthread.c, ath-pthread-compat.c, context.h, conversion.c, data.c, data-compat.c, data-fd.c, data.h, data-mem.c, data-stream.c, data-user.c, debug.c, debug.h, decrypt.c, decrypt-verify.c, delete.c, edit.c, encrypt.c, encrypt-sign.c, engine-backend.h, engine.c, engine-gpgsm.c, engine.h, error.c, export.c, genkey.c, get-env.c, gpgme.c, gpgme.h, import.c, io.h, key.c, keylist.c, mkstatus, Makefile.am, ops.h, op-support.c, passphrase.c, posix-io.c, posix-sema.c, posix-util.c, progress.c, rungpg.c, sema.h, sign.c, signers.c, trust-item.c, trustlist.c, util.h, verify.c, version.c, w32-io.c, w32-sema.c, w32-util.c, wait.c, wait-global.c, wait.h, wait-private.c, wait-user.c: Change license to LGPL. tests/ 2004-12-07 Marcus Brinkmann <marcus@g10code.de> * gpg/mkdemodirs: Add copyright notice. * gpgsm/Makefile.am, gpgsm/t-support.h, gpgsm/t-decrypt.c, gpgsm/t-encrypt.c, gpgsm/t-export.c, gpgsm/t-genkey.c, gpgsm/t-import.c, gpgsm/t-keylist.c, gpgsm/t-sign.c, gpgsm/t-verify.c, gpg/Makefile.am, gpg/t-decrypt.c, gpg/t-decrypt-verify.c, gpg/t-edit.c, gpg/t-encrypt.c, gpg/t-encrypt-sign.c, gpg/t-encrypt-sym.c, gpg/t-eventloop.c, gpg/t-export.c, gpg/t-genkey.c, gpg/t-import.c, gpg/t-keylist.c, gpg/t-keylist-sig.c, gpg/t-sign.c, gpg/t-signers.c, gpg/t-support.h, gpg/t-thread1.c, gpg/t-trustlist.c, gpg/t-verify.c, Makefile.am, t-data.c, t-engine-info.c, t-version.c: Change license to LGPL.
122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
/* data.h - Internal data object abstraction interface.
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Copyright (C) 2002, 2004 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef DATA_H
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#define DATA_H
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <sys/types.h>
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#include <limits.h>
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#include "gpgme.h"
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/* Read up to SIZE bytes into buffer BUFFER from the data object with
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the handle DH. Return the number of characters read, 0 on EOF and
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-1 on error. If an error occurs, errno is set. */
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typedef ssize_t (*gpgme_data_read_cb) (gpgme_data_t dh, void *buffer,
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size_t size);
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/* Write up to SIZE bytes from buffer BUFFER to the data object with
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the handle DH. Return the number of characters written, or -1 on
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error. If an error occurs, errno is set. */
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typedef ssize_t (*gpgme_data_write_cb) (gpgme_data_t dh, const void *buffer,
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size_t size);
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/* Set the current position from where the next read or write starts
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in the data object with the handle DH to OFFSET, relativ to
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WHENCE. */
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typedef off_t (*gpgme_data_seek_cb) (gpgme_data_t dh, off_t offset,
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int whence);
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/* Release the data object with the handle DH. */
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typedef void (*gpgme_data_release_cb) (gpgme_data_t dh);
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struct _gpgme_data_cbs
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{
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gpgme_data_read_cb read;
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gpgme_data_write_cb write;
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gpgme_data_seek_cb seek;
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gpgme_data_release_cb release;
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};
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struct gpgme_data
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{
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struct _gpgme_data_cbs *cbs;
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gpgme_data_encoding_t encoding;
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#ifdef PIPE_BUF
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#define BUFFER_SIZE PIPE_BUF
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#else
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#ifdef _POSIX_PIPE_BUF
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#define BUFFER_SIZE _POSIX_PIPE_BUF
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#else
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#define BUFFER_SIZE 512
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#endif
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#endif
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char pending[BUFFER_SIZE];
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int pending_len;
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union
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{
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/* For gpgme_data_new_from_fd. */
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int fd;
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/* For gpgme_data_new_from_stream. */
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FILE *stream;
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/* For gpgme_data_new_from_cbs. */
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struct
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{
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gpgme_data_cbs_t cbs;
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void *handle;
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} user;
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/* For gpgme_data_new_from_mem. */
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struct
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{
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char *buffer;
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const char *orig_buffer;
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/* Allocated size of BUFFER. */
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size_t size;
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size_t length;
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off_t offset;
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} mem;
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/* For gpgme_data_new_from_read_cb. */
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struct
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{
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int (*cb) (void *, char *, size_t, size_t *);
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void *handle;
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} old_user;
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} data;
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};
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gpgme_error_t _gpgme_data_new (gpgme_data_t *r_dh,
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struct _gpgme_data_cbs *cbs);
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void _gpgme_data_release (gpgme_data_t dh);
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#endif /* DATA_H */
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