/usr/include/kannel/gwlib/gwmem.h is in kannel-dev 1.4.4-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* The Kannel Software License, Version 1.0
*
* Copyright (c) 2001-2014 Kannel Group
* Copyright (c) 1998-2001 WapIT Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Kannel Group (http://www.kannel.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Kannel" and "Kannel Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please
* contact org@kannel.org.
*
* 5. Products derived from this software may not be called "Kannel",
* nor may "Kannel" appear in their name, without prior written
* permission of the Kannel Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE KANNEL GROUP OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Kannel Group. For more information on
* the Kannel Group, please see <http://www.kannel.org/>.
*
* Portions of this software are based upon software originally written at
* WapIT Ltd., Helsinki, Finland for the Kannel project.
*/
/*
* gwmem.h
*
* This is a simple malloc()-wrapper. It does not return NULLs but
* instead panics.
*
* We have two wrappers. One that just checks for allocation failures and
* panics if they happen and one that tries to find allocation problems,
* such as using an area after it has been freed.
*
* Kalle Marjola
* Lars Wirzenius
*/
#ifndef GWMEM_H
#define GWMEM_H
void *gw_native_noop(void *ptr);
void gw_native_init(void);
void gw_native_check_leaks(void);
void *gw_native_malloc(size_t size);
void *gw_native_calloc(int nmemb, size_t size);
void *gw_native_realloc(void *ptr, size_t size);
void gw_native_free(void *ptr);
char *gw_native_strdup(const char *str);
void gw_native_shutdown(void);
void gw_check_init_mem(int slow_flag);
void gw_check_check_leaks(void);
void *gw_check_malloc(size_t size,
const char *filename, long line, const char *function);
void *gw_check_calloc(int nmemb, size_t size,
const char *filename, long line, const char *function);
void *gw_check_realloc(void *p, size_t size,
const char *filename, long line, const char *function);
void gw_check_free(void *p,
const char *filename, long line, const char *function);
char *gw_check_strdup(const char *str,
const char *filename, long line, const char *function);
int gw_check_is_allocated(void *p);
long gw_check_area_size(void *p);
void *gw_check_claim_area(void *p,
const char *filename, long line, const char *function);
void gw_check_shutdown(void);
/*
* "slow" == "checking" with a small variation.
*/
#if USE_GWMEM_SLOW
#define USE_GWMEM_CHECK 1
#endif
#if USE_GWMEM_NATIVE
/*
* The `native' wrapper.
*/
#define gw_init_mem()
#define gw_check_leaks()
#define gw_malloc(size) (gw_native_malloc(size))
#define gw_malloc_trace(size, file, line, func) (gw_native_malloc(size))
#define gw_calloc(nmemb, size) (gw_native_calloc(nmemb, size))
#define gw_realloc(ptr, size) (gw_native_realloc(ptr, size))
#define gw_free(ptr) (gw_native_free(ptr))
#define gw_strdup(str) (gw_native_strdup(str))
#define gw_assert_allocated(ptr, file, line, function)
#define gw_claim_area(ptr) (gw_native_noop(ptr))
#define gw_claim_area_for(ptr, file, line, func) (gw_native_noop(ptr))
#define gwmem_shutdown()
#define gwmem_type() (octstr_imm("native"))
#elif USE_GWMEM_CHECK
/*
* The `check' wrapper.
*/
#ifdef USE_GWMEM_SLOW
#define gw_init_mem() (gw_check_init_mem(1))
#define gwmem_type() (octstr_imm("slow"))
#else
#define gw_init_mem() (gw_check_init_mem(0))
#define gwmem_type() (octstr_imm("checking"))
#endif
#define gw_check_leaks() (gw_check_check_leaks())
#define gw_malloc_trace(size, file, line, func) \
(gw_check_malloc(size, file, line, func))
#define gw_malloc(size) \
(gw_check_malloc(size, __FILE__, __LINE__, __func__))
#define gw_calloc(nmemb, size) \
(gw_check_calloc(nmemb, size, __FILE__, __LINE__, __func__))
#define gw_realloc(ptr, size) \
(gw_check_realloc(ptr, size, __FILE__, __LINE__, __func__))
#define gw_free(ptr) \
(gw_check_free(ptr, __FILE__, __LINE__, __func__))
#define gw_strdup(str) \
(gw_check_strdup(str, __FILE__, __LINE__, __func__))
#define gw_assert_allocated(ptr, file, line, function) \
(gw_assert_place(gw_check_is_allocated(ptr), file, line, function))
#define gw_claim_area(ptr) \
(gw_check_claim_area(ptr, __FILE__, __LINE__, __func__))
#define gw_claim_area_for(ptr, file, line, func) \
(gw_check_claim_area(ptr, file, line, func))
#define gwmem_shutdown() (gw_check_shutdown())
#else
/*
* Unknown wrapper. Oops.
*/
#error "Unknown malloc wrapper."
#endif
/*
* Make sure no-one uses the unwrapped functions by mistake.
*/
/* undefine first to avoid compiler warnings about redefines */
#undef malloc
#undef calloc
#undef realloc
#undef free
#undef strdup
#define malloc(n) do_not_call_malloc_directly
#define calloc(a, b) do_not_use_calloc
#define realloc(p, n) do_not_call_realloc_directly
#define free(p) do_not_call_free_directly
#define strdup(p) do_not_call_strdup_directly
#endif
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