/usr/include/kannel/gwlib/protected.h is in kannel-dev 1.4.3-2+b2.
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) 2001-2009 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.
*/
/*
* protected.h - thread-safe versions of standard library functions
*
* The standard (or commonly available) C library functions are not always
* thread-safe, or re-entrant. This module provides wrappers. The wrappers
* are not always the most efficient, but the interface is meant to
* allow a more efficient version be implemented later.
*
* Lars Wirzenius
*/
#ifndef PROTECTED_H
#define PROTECTED_H
#include <netdb.h>
#include <time.h>
void gwlib_protected_init(void);
void gwlib_protected_shutdown(void);
struct tm gw_localtime(time_t t);
struct tm gw_gmtime(time_t t);
time_t gw_mktime(struct tm *tm);
int gw_rand(void);
int gw_gethostbyname(struct hostent *ret, const char *name, char **buff);
size_t gw_strftime(char *s, size_t max, const char *format, const struct tm *tm);
/*
* Make it harder to use these by mistake.
*/
#undef localtime
#define localtime(t) do_not_use_localtime_directly
#undef gmtime
#define gmtime(t) do_not_use_gmtime_directly
#undef mktime
#define mktime(t) do_not_use_mktime_directly
#undef strftime
#define strftime(a, b, c, d) do_not_use_strftime_directly
#undef rand
#define rand() do_not_use_rand_directly
#undef gethostbyname
#define gethostbyname(a, b, c) do_not_use_gethostbyname_directly
#undef inet_ntoa
#define inet_ntoa(in) use_gw_netaddr_to_octstr_instead_of_inet_ntoa
#endif
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