#This patch was developed both in-house and from outside. We plan to submit it

#upstream, but do not yet have a target date for doing so

#

# HG changeset patch

# Parent  b0c54b9f271e37d7b605138bcdd0c26844892c3d

22086045 libibmad used [s]random(3c) functions unsafely

diff -r b0c54b9f271e src/mad.c

--- a/src/mad.c	Mon Aug 15 14:55:29 2016 -0700

+++ b/src/mad.c	Mon Aug 15 15:01:53 2016 -0700

@@ -41,6 +41,9 @@

 #include <stdlib.h>

 #include <string.h>

 #include <time.h>

+#if defined(__SVR4) && defined(__sun)

+#include <pthread.h>

+#endif

 #include <errno.h>

 #include <infiniband/umad.h>

@@ -48,6 +51,10 @@

 #include "mad_internal.h"

+#if defined(__SVR4) && defined(__sun)

+static pthread_mutex_t trid_mutex = PTHREAD_MUTEX_INITIALIZER;

+#endif

+

 #undef DEBUG

 #define DEBUG	if (ibdebug)	IBWARN

@@ -63,11 +70,17 @@

 	static uint64_t trid;

 	uint64_t next;

+#if defined(__SVR4) && defined(__sun)

+	(void) pthread_mutex_lock(&trid_mutex);

+#endif

 	if (!trid) {

 		srandom((int)time(0) * getpid());

 		trid = random();

 	}

 	next = ++trid;

+#if defined(__SVR4) && defined(__sun)

+	(void) pthread_mutex_unlock(&trid_mutex);

+#endif

 	next = GET_IB_USERLAND_TID(next);

 	return next;

 }