From 7f3caba522f4d24764f29d83aa2de9198bb7f01c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 24 May 2024 06:52:22 +0200 Subject: Adding upstream version 6.8. Signed-off-by: Daniel Baumann --- man3/arc4random.3 | 109 ------------------------------------------------------ 1 file changed, 109 deletions(-) delete mode 100644 man3/arc4random.3 (limited to 'man3/arc4random.3') diff --git a/man3/arc4random.3 b/man3/arc4random.3 deleted file mode 100644 index b205ca9..0000000 --- a/man3/arc4random.3 +++ /dev/null @@ -1,109 +0,0 @@ -'\" t -.\" Copyright (C) 2023 Alejandro Colomar -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.TH arc4random 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -arc4random, arc4random_uniform, arc4random_buf -\- cryptographically-secure pseudorandom number generator -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include -.P -.B uint32_t arc4random(void); -.BI "uint32_t arc4random_uniform(uint32_t " upper_bound ); -.BI "void arc4random_buf(void " buf [. n "], size_t " n ); -.fi -.SH DESCRIPTION -These functions give cryptographically-secure pseudorandom numbers. -.P -.BR arc4random () -returns a uniformly-distributed value. -.P -.BR arc4random_uniform () -returns a uniformly-distributed value less than -.I upper_bound -(see BUGS). -.P -.BR arc4random_buf () -fills the memory pointed to by -.IR buf , -with -.I n -bytes of pseudorandom data. -.P -The -.BR rand (3) -and -.BR drand48 (3) -families of functions should only be used where -the quality of the pseudorandom numbers is not a concern -.I and -there's a need for repeatability of the results. -Unless you meet both of those conditions, -use the -.BR arc4random () -functions. -.SH RETURN VALUE -.BR arc4random () -returns a pseudorandom number. -.P -.BR arc4random_uniform () -returns a pseudorandom number less than -.I upper_bound -for valid input, or -.B 0 -when -.I upper_bound -is invalid. -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR arc4random (), -.BR arc4random_uniform (), -.BR arc4random_buf () -T} Thread safety MT-Safe -.TE -.SH STANDARDS -BSD. -.SH HISTORY -OpenBSD 2.1, -FreeBSD 3.0, -NetBSD 1.6, -DragonFly 1.0, -libbsd, -glibc 2.36. -.SH BUGS -An -.I upper_bound -of -.B 0 -doesn't make sense in a call to -.BR arc4random_uniform (). -Such a call will fail, and return -.BR 0 . -Be careful, -since that value is -.I not -less than -.IR upper_bound . -In some cases, -such as accessing an array, -using that value could result in Undefined Behavior. -.SH SEE ALSO -.BR getrandom (3), -.BR rand (3), -.BR drand48 (3), -.BR random (7) -- cgit v1.2.3