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If the named file has its immutable or append-only flag set, truncate(2)

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and ftruncate(2) return EPERM.

Note, that if the append-only flag is set even increasing size of the file
is not permitted.
This commit is contained in:
Pawel Jakub Dawidek 2006-12-09 22:49:28 +00:00
parent 442cc490fd
commit 9becb00c0a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=165051
1 changed files with 6 additions and 1 deletions
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7
lib/libc/sys/truncate.2
View file

@ -32,7 +32,7 @@
.\" @(#)truncate.2 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd June 1, 2006
.Dd December 9, 2006
.Dt TRUNCATE 2
.Os
.Sh NAME
@ -92,6 +92,10 @@ Search permission is denied for a component of the path prefix.
The named file is not writable by the user.
.It Bq Er ELOOP
Too many symbolic links were encountered in translating the pathname.
.It Bq Er EPERM
The named file has its immutable or append-only flag set, see the
.Xr chflags 2
manual page for more information.
.It Bq Er EISDIR
The named file is a directory.
.It Bq Er EROFS
@ -129,6 +133,7 @@ descriptor
is not open for writing.
.El
.Sh SEE ALSO
.Xr chflags 2 ,
.Xr open 2
.Sh HISTORY
The