Date: Fri, 8 Nov 2019 23:49:27 +0000 (UTC) From: Rick Macklem <rmacklem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354565 - head/lib/libc/sys Message-ID: <201911082349.xA8NnR5k062655@repo.freebsd.org>
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Author: rmacklem Date: Fri Nov 8 23:49:27 2019 New Revision: 354565 URL: https://svnweb.freebsd.org/changeset/base/354565 Log: Update the copy_file_range.2 man page to reflect the semantic change implemented by r354564. This is a content change. Modified: head/lib/libc/sys/copy_file_range.2 Modified: head/lib/libc/sys/copy_file_range.2 ============================================================================== --- head/lib/libc/sys/copy_file_range.2 Fri Nov 8 23:39:17 2019 (r354564) +++ head/lib/libc/sys/copy_file_range.2 Fri Nov 8 23:49:27 2019 (r354565) @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 24, 2019 +.Dd November 8, 2019 .Dt COPY_FILE_RANGE 2 .Os .Sh NAME @@ -113,6 +113,14 @@ data ranges found. If it succeeds, the call returns the number of bytes copied, which can be fewer than .Fa len . +Returning fewer bytes than +.Fa len +does not necessarily indicate that EOF was reached. +However, a return of zero for a non-zero +.Fa len +argument indicates that the offset for +.Fa infd +is at or beyond EOF. .Fn copy_file_range should be used in a loop until copying of the desired byte range has been completed. @@ -154,13 +162,6 @@ and .Fa outoffp are reset to the initial values for the system call. .It Bq Er EINVAL -If the initial offset for -.Fa infd -plus -.Fa len -exceeds EOF for -.Fa infd -or .Fa flags is not zero.
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