1 /* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
3 This program is free software; you can redistribute it and/or modify it
4 under the terms of the GNU General Public License as published by the
5 Free Software Foundation; either version 2, or (at your option) any
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software Foundation,
15 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
17 /* Written by Paul Eggert. */
19 /* derived from a function in touch.c */
31 /* Some systems (even some that do have <utime.h>) don't declare this
32 structure anywhere. */
33 #ifndef HAVE_STRUCT_UTIMBUF
41 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
42 # define __attribute__(x)
45 #ifndef ATTRIBUTE_UNUSED
46 # define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
49 /* Set the access and modification time stamps of FD (a.k.a. FILE) to be
50 TIMESPEC[0] and TIMESPEC[1], respectively.
51 FD must be either negative -- in which case it is ignored --
52 or a file descriptor that is open on FILE.
53 If TIMESPEC is null, set the time stamps to the current time. */
56 futimens (int fd ATTRIBUTE_UNUSED,
57 char const *file, struct timespec const timespec[2])
59 /* There's currently no interface to set file timestamps with
60 nanosecond resolution, so do the best we can, discarding any
61 fractional part of the timestamp. */
62 #if HAVE_WORKING_UTIMES
63 struct timeval timeval[2];
64 struct timeval const *t;
67 timeval[0].tv_sec = timespec[0].tv_sec;
68 timeval[0].tv_usec = timespec[0].tv_nsec / 1000;
69 timeval[1].tv_sec = timespec[1].tv_sec;
70 timeval[1].tv_usec = timespec[1].tv_nsec / 1000;
77 return futimes (fd, t);
79 return utimes (file, t);
83 struct utimbuf utimbuf;
84 struct utimbuf const *t;
87 utimbuf.actime = timespec[0].tv_sec;
88 utimbuf.modtime = timespec[1].tv_sec;
93 return utime (file, t);
98 /* Set the access and modification time stamps of FILE to be
99 TIMESPEC[0] and TIMESPEC[1], respectively. */
101 utimens (char const *file, struct timespec const timespec[2])
103 return futimens (-1, file, timespec);