diff options
Diffstat (limited to 'lib/libc/stdlib/rand.c')
| -rw-r--r-- | lib/libc/stdlib/rand.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/lib/libc/stdlib/rand.c b/lib/libc/stdlib/rand.c index f270ffd9868..61fb66e5eca 100644 --- a/lib/libc/stdlib/rand.c +++ b/lib/libc/stdlib/rand.c @@ -32,7 +32,7 @@ */ #if defined(LIBC_SCCS) && !defined(lint) -static char *rcsid = "$OpenBSD: rand.c,v 1.2 1996/08/19 08:33:44 tholo Exp $"; +static char *rcsid = "$OpenBSD: rand.c,v 1.3 1998/11/20 11:18:50 d Exp $"; #endif /* LIBC_SCCS and not lint */ #include <sys/types.h> @@ -41,9 +41,17 @@ static char *rcsid = "$OpenBSD: rand.c,v 1.2 1996/08/19 08:33:44 tholo Exp $"; static u_long next = 1; int +rand_r(seed) +u_int *seed; +{ + *seed = *seed * 1103515245 + 12345; + return (u_int)(*seed / 65536) % ((u_int)RAND_MAX + 1); +} + +int rand() { - return ((next = next * 1103515245 + 12345) % ((u_int)RAND_MAX + 1)); + return rand_r(&next); } void |