/usr/include/pj/rand.h is in libpjproject-dev 2.7.2~dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of 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.
*
* This program 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PJ_RAND_H__
#define __PJ_RAND_H__
/**
* @file rand.h
* @brief Random Number Generator.
*/
#include <pj/config.h>
PJ_BEGIN_DECL
/**
* @defgroup PJ_RAND Random Number Generator
* @ingroup PJ_MISC
* @{
* This module contains functions for generating random numbers.
* This abstraction is needed not only because not all platforms have
* \a rand() and \a srand(), but also on some platforms \a rand()
* only has 16-bit randomness, which is not good enough.
*/
/**
* Put in seed to random number generator.
*
* @param seed Seed value.
*/
PJ_DECL(void) pj_srand(unsigned int seed);
/**
* Generate random integer with 32bit randomness.
*
* @return a random integer.
*/
PJ_DECL(int) pj_rand(void);
/** @} */
PJ_END_DECL
#endif /* __PJ_RAND_H__ */
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