xref: /haiku/src/system/libroot/posix/unistd/truncate.c (revision 55e8238c7286b14593f43460aebf91b89309e38c)

/*
 * Copyright 2002-2008, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
 * Distributed under the terms of the MIT License.
 */


#include <fs_interface.h>
#include <NodeMonitor.h>

#include <unistd.h>
#include <syscalls.h>
#include <errno.h>

#include <errno_private.h>
#include <syscall_utils.h>


int
truncate(const char *path, off_t newSize)
{
	struct stat stat;
	status_t status;

	stat.st_size = newSize;
	status = _kern_write_stat(AT_FDCWD, path, true, &stat, sizeof(struct stat),
		B_STAT_SIZE);

	RETURN_AND_SET_ERRNO(status);
}


int
ftruncate(int fd, off_t newSize)
{
	struct stat stat;
	status_t status;

	stat.st_size = newSize;
	status = _kern_write_stat(fd, NULL, false, &stat, sizeof(struct stat),
		B_STAT_SIZE);

	RETURN_AND_SET_ERRNO(status);
}