mirror of
https://git.FreeBSD.org/ports.git
synced 2024-12-20 04:02:27 +00:00
66 lines
1.3 KiB
C++
66 lines
1.3 KiB
C++
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$FreeBSD$
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--- stun.cxx
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+++ stun.cxx
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@@ -648,55 +648,13 @@
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stunRand()
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{
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// return 32 bits of random stuff
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- assert( sizeof(int) == 4 );
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static bool init=false;
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- if ( !init )
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- {
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+ if ( !init ) {
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+ srandomdev();
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init = true;
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-
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- UInt64 tick;
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-
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-#if defined(WIN32)
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- volatile unsigned int lowtick=0,hightick=0;
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- __asm
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- {
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- rdtsc
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- mov lowtick, eax
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- mov hightick, edx
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- }
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- tick = hightick;
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- tick <<= 32;
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- tick |= lowtick;
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-#elif defined(__GNUC__) && ( defined(__i686__) || defined(__i386__) )
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- asm("rdtsc" : "=A" (tick));
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-#elif defined (__SUNPRO_CC) || defined( __sparc__ )
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- tick = gethrtime();
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-#elif defined(__MACH__)
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- int fd=open("/dev/random",O_RDONLY);
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- read(fd,&tick,sizeof(tick));
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- closesocket(fd);
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-#else
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-# error Need some way to seed the random number generator
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-#endif
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- int seed = int(tick);
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-#ifdef WIN32
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- srand(seed);
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-#else
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- srandom(seed);
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-#endif
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}
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-
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-#ifdef WIN32
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- assert( RAND_MAX == 0x7fff );
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- int r1 = rand();
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- int r2 = rand();
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-
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- int ret = (r1<<16) + r2;
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-
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- return ret;
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-#else
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- return random();
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-#endif
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+ /* random() is described as returning 0...2**31-1 */
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+ return 0xffffffff & ( ( random() << 31 ) | random() );
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}
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