| truncate.2 (108028) | truncate.2 (108087) |
|---|---|
| 1.\" Copyright (c) 1983, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)truncate.2 8.1 (Berkeley) 6/4/93 | 1.\" Copyright (c) 1983, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)truncate.2 8.1 (Berkeley) 6/4/93 |
| 33.\" $FreeBSD: head/lib/libc/sys/truncate.2 108028 2002-12-18 09:22:32Z ru $ | 33.\" $FreeBSD: head/lib/libc/sys/truncate.2 108087 2002-12-19 09:40:28Z ru $ |
| 34.\" 35.Dd June 4, 1993 36.Dt TRUNCATE 2 37.Os 38.Sh NAME 39.Nm truncate , 40.Nm ftruncate 41.Nd truncate or extend a file to a specified length --- 49 unchanged lines hidden (view full) --- 91The named file is a directory. 92.It Bq Er EROFS 93The named file resides on a read-only file system. 94.It Bq Er ETXTBSY 95The file is a pure procedure (shared text) file that is being executed. 96.It Bq Er EIO 97An I/O error occurred updating the inode. 98.It Bq Er EFAULT | 34.\" 35.Dd June 4, 1993 36.Dt TRUNCATE 2 37.Os 38.Sh NAME 39.Nm truncate , 40.Nm ftruncate 41.Nd truncate or extend a file to a specified length --- 49 unchanged lines hidden (view full) --- 91The named file is a directory. 92.It Bq Er EROFS 93The named file resides on a read-only file system. 94.It Bq Er ETXTBSY 95The file is a pure procedure (shared text) file that is being executed. 96.It Bq Er EIO 97An I/O error occurred updating the inode. 98.It Bq Er EFAULT |
| 99.Fa Path | 99The 100.Fa path 101argument |
| 100points outside the process's allocated address space. 101.El 102.Pp 103The 104.Fn ftruncate 105system call 106succeeds unless: 107.Bl -tag -width Er 108.It Bq Er EBADF 109The 110.Fa fd | 102points outside the process's allocated address space. 103.El 104.Pp 105The 106.Fn ftruncate 107system call 108succeeds unless: 109.Bl -tag -width Er 110.It Bq Er EBADF 111The 112.Fa fd |
| 113argument |
|
| 111is not a valid descriptor. 112.It Bq Er EINVAL 113The 114.Fa fd | 114is not a valid descriptor. 115.It Bq Er EINVAL 116The 117.Fa fd |
| 118argument |
|
| 115references a socket, not a file. 116.It Bq Er EINVAL 117The 118.Fa fd | 119references a socket, not a file. 120.It Bq Er EINVAL 121The 122.Fa fd |
| 123descriptor |
|
| 119is not open for writing. 120.El 121.Sh SEE ALSO 122.Xr open 2 123.Sh BUGS 124These calls should be generalized to allow ranges 125of bytes in a file to be discarded. 126.Pp 127Use of 128.Fn truncate 129to extend a file is not portable. 130.Sh HISTORY 131The 132.Fn truncate 133system call appeared in 134.Bx 4.2 . | 124is not open for writing. 125.El 126.Sh SEE ALSO 127.Xr open 2 128.Sh BUGS 129These calls should be generalized to allow ranges 130of bytes in a file to be discarded. 131.Pp 132Use of 133.Fn truncate 134to extend a file is not portable. 135.Sh HISTORY 136The 137.Fn truncate 138system call appeared in 139.Bx 4.2 . |