Linux doesn't have this, but since I do truncate(2) in the kernel, it would be more consistent to do it 'at'-style. (I will remove truncate(2) from the kernel and let libc call truncateat(2) soon anyway).
35 lines
1.3 KiB
C++
35 lines
1.3 KiB
C++
/*******************************************************************************
|
|
|
|
Copyright(C) Jonas 'Sortie' Termansen 2012.
|
|
|
|
This file is part of the Sortix C Library.
|
|
|
|
The Sortix C Library is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The Sortix 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 Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
truncateat.cpp
|
|
Truncates a file to a specific size.
|
|
|
|
*******************************************************************************/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/syscall.h>
|
|
#include <unistd.h>
|
|
|
|
DEFN_SYSCALL3(int, sys_truncateat, SYSCALL_TRUNCATEAT, int, const char*, off_t);
|
|
|
|
extern "C" int truncateat(int dirfd, const char* pathname, off_t length)
|
|
{
|
|
return sys_truncateat(dirfd, pathname, length);
|
|
}
|