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1/* Truncate a file given by name. Generic POSIX.1 version.
2 Copyright (C) 1995-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <sys/types.h>
20#include <errno.h>
21#include <unistd.h>
22#include <fcntl.h>
23
24/* Truncate PATH to LENGTH bytes. */
25int
26__truncate (const char *path, off_t length)
27{
28 int fd, ret, save;
29
30 fd = __open (path, O_WRONLY | (length == 0 ? O_TRUNC : 0));
31 if (fd < 0)
32 return -1;
33
34 if (length == 0)
35 ret = 0;
36 else
37 ret = __ftruncate (fd, length);
38 save = errno;
39 (void) __close (fd);
40 if (ret < 0)
41 __set_errno (save);
42 return ret;
43}
44weak_alias (__truncate, truncate)
45

Warning: That file was not part of the compilation database. It may have many parsing errors.