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Add extra EINVAL information about wrong block size to read(2)/write(2)

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The read system call will return EINVAL if the current file offset is
not a multiple of the block size. This also applies to write(2). Add an
entry for EINVAL about this error to both man pages.

PR:			91149
Event:			Aberdeen Hackathon 2022
Differential Revision:	https://reviews.freebsd.org/D24617
This commit is contained in:
Benedict Reuschling 2022-10-07 11:32:37 +00:00
parent 53af690381
commit 1c2be25f60
2 changed files with 6 additions and 2 deletions
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4
lib/libc/sys/read.2
View File

@ -28,7 +28,7 @@
.\" @(#)read.2 8.4 (Berkeley) 2/26/94
.\" $FreeBSD$
.\"
.Dd June 4, 2020
.Dd October 7, 2022
.Dt READ 2
.Os
.Sh NAME
@ -250,6 +250,8 @@ The sum of the
values in the
.Fa iov
array overflowed a 32-bit integer.
.It Bq Er EINVAL
The current file offset is not a multiple of the block size.
.It Bq Er EFAULT
Part of the
.Fa iov

4
lib/libc/sys/write.2
View File

@ -28,7 +28,7 @@
.\" @(#)write.2 8.5 (Berkeley) 4/2/94
.\" $FreeBSD$
.\"
.Dd February 11, 2021
.Dd October 7, 2022
.Dt WRITE 2
.Os
.Sh NAME
@ -205,6 +205,8 @@ is greater than
if the sysctl
.Va debug.iosize_max_clamp
is non-zero).
.It Bq Er EINVAL
The current file offset is not a multiple of the block size.
.It Bq Er EINTEGRITY
The backing store for
.Fa fd