mirror of
git://git.gnupg.org/gnupg.git
synced 2024-09-08 13:06:22 +02:00
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/* membuf.h - A simple implementation of a dynamic buffer
|
|
* Copyright (C) 2001, 2003 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of GnuPG.
|
|
*
|
|
* This file is free software; you can redistribute it and/or modify
|
|
* it under the terms of either
|
|
*
|
|
* - the GNU Lesser General Public License as published by the Free
|
|
* Software Foundation; either version 3 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* or
|
|
*
|
|
* - 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.
|
|
*
|
|
* or both in parallel, as here.
|
|
*
|
|
* This file 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 this program; if not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef GNUPG_COMMON_MEMBUF_H
|
|
#define GNUPG_COMMON_MEMBUF_H
|
|
|
|
#include "mischelp.h"
|
|
|
|
/* The definition of the structure is private, we only need it here,
|
|
so it can be allocated on the stack. */
|
|
struct private_membuf_s
|
|
{
|
|
size_t len;
|
|
size_t size;
|
|
char *buf;
|
|
int out_of_core;
|
|
};
|
|
|
|
typedef struct private_membuf_s membuf_t;
|
|
|
|
/* Return the current length of the membuf. */
|
|
#define get_membuf_len(a) ((a)->len)
|
|
#define is_membuf_ready(a) ((a)->buf || (a)->out_of_core)
|
|
#define MEMBUF_ZERO { 0, 0, NULL, 0}
|
|
|
|
void init_membuf (membuf_t *mb, int initiallen);
|
|
void init_membuf_secure (membuf_t *mb, int initiallen);
|
|
void clear_membuf (membuf_t *mb, size_t amount);
|
|
void put_membuf (membuf_t *mb, const void *buf, size_t len);
|
|
gpg_error_t put_membuf_cb (void *opaque, const void *buf, size_t len);
|
|
void put_membuf_str (membuf_t *mb, const char *string);
|
|
void put_membuf_printf (membuf_t *mb, const char *format,
|
|
...) GPGRT_ATTR_PRINTF(2,3);
|
|
void *get_membuf (membuf_t *mb, size_t *len);
|
|
void *get_membuf_shrink (membuf_t *mb, size_t *len);
|
|
const void *peek_membuf (membuf_t *mb, size_t *len);
|
|
|
|
#endif /*GNUPG_COMMON_MEMBUF_H*/
|