D29385.id86177.diff
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	Index: share/man/man9/random.9
	===================================================================
	--- share/man/man9/random.9
	+++ share/man/man9/random.9
	@@ -26,7 +26,7 @@
	.\"
	.\" $FreeBSD$
	.\" "
	-.Dd December 26, 2019
	+.Dd March 22, 2021
	.Dt RANDOM 9
	.Os
	.Sh NAME
	@@ -132,17 +132,12 @@
	returned.
	.Pp
	The deprecated
	-.Xr random 9
	-function will produce a sequence of pseudorandom numbers using a similar weak
	-linear congruential generator as
	-.Xr rand 3
	-(the 1988 Park-Miller LCG).
	+.Fn random
	+function will return a 31-bit value.
	It is obsolete and scheduled to be removed in
	-.Fx 13.0 .
	-It is strongly advised that the
	-.Xr random 9
	-function not be used to generate random numbers.
	-See
	+a future version, see
	+.Xr prng 9
	+and see
	.Sx SECURITY CONSIDERATIONS .
	.Sh RETURN VALUES
	The
	@@ -167,6 +162,13 @@
	.Fn read_random_uio
	returns zero when successful,
	otherwise an error code is returned.
	+.Pp
	+.Fn random
	+returns numbers
	+in the range from 0 to
	+.if t 2\u\s731\s10\d\(mi1.
	+.if n (2**31)\(mi1.
	+
	.Sh ERRORS
	.Fn read_random_uio
	may fail if:
	Index: sys/libkern/random.c
	===================================================================
	--- sys/libkern/random.c
	+++ sys/libkern/random.c
	@@ -45,5 +45,5 @@
	u_long
	random(void)
	{
	- return (prng32());
	+ return (prng32() & 0x7fffffff);
	}