mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-04 23:46:43 +00:00
132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
/*-
|
|
* Copyright (c) 2009-2010 Brad Penoff
|
|
* Copyright (c) 2009-2010 Humaira Kamal
|
|
* Copyright (c) 2011-2012 Irene Ruengeler
|
|
* Copyright (c) 2011-2012 Michael Tuexen
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS 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 AUTHOR OR 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.
|
|
*/
|
|
|
|
/* __Userspace__ */
|
|
|
|
#include <stdlib.h>
|
|
#if !defined(_WIN32)
|
|
#include <stdint.h>
|
|
#include <netinet/sctp_os_userspace.h>
|
|
#endif
|
|
#include <user_environment.h>
|
|
#include <sys/types.h>
|
|
/* #include <sys/param.h> defines MIN */
|
|
#if !defined(MIN)
|
|
#define MIN(arg1,arg2) ((arg1) < (arg2) ? (arg1) : (arg2))
|
|
#endif
|
|
#include <string.h>
|
|
|
|
#define uHZ 1000
|
|
|
|
/* See user_include/user_environment.h for comments about these variables */
|
|
int maxsockets = 25600;
|
|
int hz = uHZ;
|
|
int ip_defttl = 64;
|
|
int ipport_firstauto = 49152, ipport_lastauto = 65535;
|
|
int nmbclusters = 65536;
|
|
|
|
/* Source ip_output.c. extern'd in ip_var.h */
|
|
u_short ip_id = 0; /*__Userspace__ TODO Should it be initialized to zero? */
|
|
|
|
/* used in user_include/user_atomic.h in order to make the operations
|
|
* defined there truly atomic
|
|
*/
|
|
userland_mutex_t atomic_mtx;
|
|
|
|
/* If the entropy device is not loaded, make a token effort to
|
|
* provide _some_ kind of randomness. This should only be used
|
|
* inside other RNG's, like arc4random(9).
|
|
*/
|
|
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
|
|
void
|
|
init_random(void)
|
|
{
|
|
return;
|
|
}
|
|
|
|
int
|
|
read_random(void *buf, int count)
|
|
{
|
|
memset(buf, 'A', count);
|
|
return (count);
|
|
}
|
|
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
|
|
void
|
|
init_random(void)
|
|
{
|
|
return;
|
|
}
|
|
|
|
int
|
|
read_random(void *buf, int count)
|
|
{
|
|
if (count >= 0) {
|
|
arc4random_buf(buf, count);
|
|
}
|
|
return (count);
|
|
}
|
|
#else
|
|
void
|
|
init_random(void)
|
|
{
|
|
struct timeval now;
|
|
unsigned int seed;
|
|
|
|
(void)SCTP_GETTIME_TIMEVAL(&now);
|
|
seed = 0;
|
|
seed |= (unsigned int)now.tv_sec;
|
|
seed |= (unsigned int)now.tv_usec;
|
|
#if !defined(_WIN32) &&! defined(__native_client__)
|
|
seed |= getpid();
|
|
#endif
|
|
#if defined(_WIN32) || defined(__native_client__)
|
|
srand(seed);
|
|
#else
|
|
srandom(seed);
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
int
|
|
read_random(void *buf, int count)
|
|
{
|
|
uint32_t randval;
|
|
int size, i;
|
|
|
|
/* Fill buf[] with random(9) output */
|
|
for (i = 0; i < count; i+= (int)sizeof(uint32_t)) {
|
|
randval = random();
|
|
size = MIN(count - i, (int)sizeof(uint32_t));
|
|
memcpy(&((char *)buf)[i], &randval, (size_t)size);
|
|
}
|
|
|
|
return (count);
|
|
}
|
|
#endif
|