mirror of
https://gitlab.gnome.org/GNOME/libsecret.git
synced 2024-12-22 12:48:51 +00:00
9cfa77f967
This change is a part of the port PAM module from gnome-keyring patch set. These changes port gnome-keyring/egg/egg-unix-credentials.c to libsecret/egg Furthermore ports gnome-keyring/egg/egg-buffer.c to libsecret/egg Signed-off-by: Dhanuka Warusadura <dhanuka@gnome.org>
197 lines
6.8 KiB
C
197 lines
6.8 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
|
|
/* egg-buffer.h - Generic data buffer, used by openssh, gnome-keyring
|
|
|
|
Copyright (C) 2007, Stefan Walter
|
|
|
|
The Gnome Keyring Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The Gnome Keyring Library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the Gnome Library; see the file COPYING.LIB. If not,
|
|
<http://www.gnu.org/licenses/>.
|
|
|
|
Author: Stef Walter <stef@memberwebs.com>
|
|
*/
|
|
|
|
#ifndef EGG_BUFFER_H
|
|
#define EGG_BUFFER_H
|
|
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
|
|
/* -------------------------------------------------------------------
|
|
* EggBuffer
|
|
*
|
|
* IMPORTANT: This is pure vanila standard C, no glib. We need this
|
|
* because certain consumers of this protocol need to be built
|
|
* without linking in any special libraries. ie: the PKCS#11 module.
|
|
*
|
|
* Memory Allocation
|
|
*
|
|
* Callers can set their own allocator. If NULL is used then standard
|
|
* C library heap memory is used and failures will not be fatal. Memory
|
|
* failures will instead result in a zero return value or
|
|
* egg_buffer_has_error() returning one.
|
|
*
|
|
* If you use something like g_realloc as the allocator, then memory
|
|
* failures become fatal just like in a standard GTK program.
|
|
*
|
|
* Don't change the allocator manually in the EggBuffer structure. The
|
|
* egg_buffer_set_allocator() func will reallocate and handle things
|
|
* properly.
|
|
*
|
|
* Pointers into the Buffer
|
|
*
|
|
* Any write operation has the posibility of reallocating memory
|
|
* and invalidating any direct pointers into the buffer.
|
|
*/
|
|
|
|
/* The allocator for the EggBuffer. This follows the realloc() syntax and logic */
|
|
typedef void* (*EggBufferAllocator) (void* p, size_t len);
|
|
|
|
typedef struct _EggBuffer {
|
|
unsigned char *buf;
|
|
size_t len;
|
|
size_t allocated_len;
|
|
int failures;
|
|
EggBufferAllocator allocator;
|
|
} EggBuffer;
|
|
|
|
#define EGG_BUFFER_EMPTY { NULL, 0, 0, 0, NULL }
|
|
|
|
int egg_buffer_init (EggBuffer *buffer, size_t reserve);
|
|
|
|
int egg_buffer_init_full (EggBuffer *buffer,
|
|
size_t reserve,
|
|
EggBufferAllocator allocator);
|
|
|
|
void egg_buffer_init_static (EggBuffer *buffer,
|
|
const unsigned char *buf,
|
|
size_t len);
|
|
|
|
void egg_buffer_init_allocated (EggBuffer *buffer,
|
|
unsigned char *buf,
|
|
size_t len,
|
|
EggBufferAllocator allocator);
|
|
|
|
void egg_buffer_uninit (EggBuffer *buffer);
|
|
|
|
unsigned char* egg_buffer_uninit_steal (EggBuffer *buffer,
|
|
size_t *n_result);
|
|
|
|
int egg_buffer_set_allocator (EggBuffer *buffer,
|
|
EggBufferAllocator allocator);
|
|
|
|
void egg_buffer_reset (EggBuffer *buffer);
|
|
|
|
int egg_buffer_equal (EggBuffer *b1,
|
|
EggBuffer *b2);
|
|
|
|
int egg_buffer_reserve (EggBuffer *buffer,
|
|
size_t len);
|
|
|
|
int egg_buffer_resize (EggBuffer *buffer,
|
|
size_t len);
|
|
|
|
int egg_buffer_append (EggBuffer *buffer,
|
|
const unsigned char *val,
|
|
size_t len);
|
|
|
|
unsigned char* egg_buffer_add_empty (EggBuffer *buffer,
|
|
size_t len);
|
|
|
|
int egg_buffer_add_byte (EggBuffer *buffer,
|
|
unsigned char val);
|
|
|
|
int egg_buffer_get_byte (EggBuffer *buffer,
|
|
size_t offset,
|
|
size_t *next_offset,
|
|
unsigned char *val);
|
|
|
|
void egg_buffer_encode_uint32 (unsigned char* buf,
|
|
uint32_t val);
|
|
|
|
uint32_t egg_buffer_decode_uint32 (unsigned char* buf);
|
|
|
|
int egg_buffer_add_uint32 (EggBuffer *buffer,
|
|
uint32_t val);
|
|
|
|
int egg_buffer_set_uint32 (EggBuffer *buffer,
|
|
size_t offset,
|
|
uint32_t val);
|
|
|
|
int egg_buffer_get_uint32 (EggBuffer *buffer,
|
|
size_t offset,
|
|
size_t *next_offset,
|
|
uint32_t *val);
|
|
|
|
void egg_buffer_encode_uint16 (unsigned char* buf,
|
|
uint16_t val);
|
|
|
|
uint16_t egg_buffer_decode_uint16 (unsigned char* buf);
|
|
|
|
int egg_buffer_add_uint16 (EggBuffer *buffer,
|
|
uint16_t val);
|
|
|
|
int egg_buffer_set_uint16 (EggBuffer *buffer,
|
|
size_t offset,
|
|
uint16_t val);
|
|
|
|
int egg_buffer_get_uint16 (EggBuffer *buffer,
|
|
size_t offset,
|
|
size_t *next_offset,
|
|
uint16_t *val);
|
|
|
|
int egg_buffer_add_byte_array (EggBuffer *buffer,
|
|
const unsigned char *val,
|
|
size_t len);
|
|
|
|
int egg_buffer_get_byte_array (EggBuffer *buffer,
|
|
size_t offset,
|
|
size_t *next_offset,
|
|
const unsigned char **val,
|
|
size_t *vlen);
|
|
|
|
unsigned char* egg_buffer_add_byte_array_empty (EggBuffer *buffer,
|
|
size_t vlen);
|
|
|
|
int egg_buffer_add_string (EggBuffer *buffer,
|
|
const char *str);
|
|
|
|
int egg_buffer_get_string (EggBuffer *buffer,
|
|
size_t offset,
|
|
size_t *next_offset,
|
|
char **str_ret,
|
|
EggBufferAllocator allocator);
|
|
|
|
int egg_buffer_add_stringv (EggBuffer *buffer,
|
|
const char** strv);
|
|
|
|
int egg_buffer_get_stringv (EggBuffer *buffer,
|
|
size_t offset,
|
|
size_t *next_offset,
|
|
char ***strv_ret,
|
|
EggBufferAllocator allocator);
|
|
|
|
int egg_buffer_add_uint64 (EggBuffer *buffer,
|
|
uint64_t val);
|
|
|
|
int egg_buffer_get_uint64 (EggBuffer *buffer,
|
|
size_t offset,
|
|
size_t *next_offset,
|
|
uint64_t *val);
|
|
|
|
#define egg_buffer_length(b) ((b)->len)
|
|
|
|
#define egg_buffer_has_error(b) ((b)->failures > 0)
|
|
|
|
#endif /* EGG_BUFFER_H */
|
|
|