2 * Copyright (c) 2011 Joseph Koshy
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/types.h>
31 #include "_libelftc.h"
36 * Determine the field name for the timestamp fields inside a 'struct
40 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__APPLE__)
41 #define ATIME st_atimespec
42 #define MTIME st_mtimespec
43 #define LIBELFTC_HAVE_UTIMES 1
46 #if defined(__DragonFly__) || defined(__linux__) || defined(__OpenBSD__)
49 #define LIBELFTC_HAVE_UTIMES 1
52 #if LIBELFTC_HAVE_UTIMES
59 elftc_set_timestamps(const char *fn, struct stat *sb)
61 #if LIBELFTC_HAVE_UTIMES
63 * The BSD utimes() system call offers timestamps
64 * 1-microsecond granularity.
68 tv[0].tv_sec = sb->ATIME.tv_sec;
69 tv[0].tv_usec = sb->ATIME.tv_nsec / 1000;
70 tv[1].tv_sec = sb->MTIME.tv_sec;
71 tv[1].tv_usec = sb->MTIME.tv_nsec / 1000;
73 return (utimes(fn, tv));
76 * On OSes without utimes(), fall back to the POSIX utime()
77 * call, which offers 1-second granularity.
81 utb.actime = sb->st_atime;
82 utb.modtime = sb->st_mtime;
83 return (utime(fn, &utb));