mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-05 03:01:05 +00:00
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* ftruncate for SVR4 using the fcntl F_FREESP command.
|
|
Copyright (C) 1995, 1997 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <string.h>
|
|
|
|
/* Truncate the file FD refers to to LENGTH bytes. */
|
|
int
|
|
ftruncate (fd, length)
|
|
int fd;
|
|
off_t length;
|
|
{
|
|
struct flock fl;
|
|
|
|
memset (&fl, 0, sizeof fl);
|
|
fl.l_type = F_WRLCK;
|
|
fl.l_start = length;
|
|
return fcntl (fd, F_FREESP, &fl);
|
|
}
|