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[src/trunk]: src/lib/libc/sys Document more EINVAL cases for fsync_range.



details:   https://anonhg.NetBSD.org/src/rev/347671bdea8e
branches:  trunk
changeset: 952795:347671bdea8e
user:      dholland <dholland%NetBSD.org@localhost>
date:      Wed Feb 17 17:43:09 2021 +0000

description:
Document more EINVAL cases for fsync_range.

Corresponds to previous code fix.

diffstat:

 lib/libc/sys/fsync.2 |  9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diffs (33 lines):

diff -r c53e32859cc4 -r 347671bdea8e lib/libc/sys/fsync.2
--- a/lib/libc/sys/fsync.2      Wed Feb 17 17:39:08 2021 +0000
+++ b/lib/libc/sys/fsync.2      Wed Feb 17 17:43:09 2021 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: fsync.2,v 1.19 2021/02/13 06:24:08 dholland Exp $
+.\"    $NetBSD: fsync.2,v 1.20 2021/02/17 17:43:09 dholland Exp $
 .\"
 .\" Copyright (c) 1983, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)fsync.2    8.1 (Berkeley) 6/4/93
 .\"
-.Dd February 12, 2021
+.Dd February 17, 2021
 .Dt FSYNC 2
 .Os
 .Sh NAME
@@ -159,10 +159,13 @@
 is not open for writing.
 .It Bq Er EINVAL
 .Fa start
+is less than zero, or
+.Fa start
 +
 .Fa length
 is less than
-.Fa start .
+.Fa start
+or triggers an integer overflow.
 .It Bq Er EINVAL
 .Fa how
 contains an invalid value.



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