Import egg-secure-memory allocator from gcr

We can re-use the code inside gcr, as we know that it's working, tested,
and license compatible.
This commit is contained in:
Emmanuele Bassi 2020-09-08 17:40:32 +01:00
parent 859df747ac
commit 31a7574544
3 changed files with 1530 additions and 0 deletions

1434
gtk/gtksecurememory.c Normal file

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@ -0,0 +1,95 @@
/* gtksecurememoryprivate.h - Allocator for non-pageable memory
Copyright 2007 Stefan Walter
Copyright 2020 GNOME Foundation
SPDX-License-Identifier: LGPL-2.0-or-later
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,
see <http://www.gnu.org/licenses/>.
Author: Stef Walter <stef@memberwebs.com>
*/
#pragma once
#include <stdlib.h>
/*
* Main functionality
*
* Allocations return NULL on failure.
*/
#define GTK_SECURE_USE_FALLBACK 0x0001
void * gtk_secure_alloc_full (const char *tag,
size_t length,
int options);
void * gtk_secure_realloc_full (const char *tag,
void *p,
size_t length,
int options);
void gtk_secure_free (void *p);
void gtk_secure_free_full (void *p,
int fallback);
void gtk_secure_clear (void *p,
size_t length);
int gtk_secure_check (const void *p);
void gtk_secure_validate (void);
char * gtk_secure_strdup_full (const char *tag,
const char *str,
int options);
char * gtk_secure_strndup_full (const char *tag,
const char *str,
size_t length,
int options);
void gtk_secure_strclear (char *str);
void gtk_secure_strfree (char *str);
/* Simple wrappers */
static inline void *gtk_secure_alloc (size_t length) {
return gtk_secure_alloc_full ("gtk", length, GTK_SECURE_USE_FALLBACK);
}
static inline void *gtk_secure_realloc (void *p, size_t length) {
return gtk_secure_realloc_full ("gtk", p, length, GTK_SECURE_USE_FALLBACK);
}
static inline void *gtk_secure_strdup (const char *str) {
return gtk_secure_strdup_full ("gtk", str, GTK_SECURE_USE_FALLBACK);
}
static inline void *gtk_secure_strndup (const char *str, size_t length) {
return gtk_secure_strndup_full ("gtk", str, length, GTK_SECURE_USE_FALLBACK);
}
typedef struct {
const char *tag;
size_t request_length;
size_t block_length;
} gtk_secure_rec;
gtk_secure_rec * gtk_secure_records (unsigned int *count);

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@ -134,6 +134,7 @@ gtk_private_sources = files([
'gtkscaler.c',
'gtksearchengine.c',
'gtksearchenginemodel.c',
'gtksecurememory.c',
'gtksizerequestcache.c',
'gtksortkeys.c',
'gtkstyleanimation.c',