libcsupport/src/futimens.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  *  @file
0005  *
0006  *  @ingroup libcsupport
0007  *
0008  *  @brief Set file access and modification times based on file descriptor in
0009  *  nanoseconds.
0010  */
0011
0012 /*
0013  * COPYRIGHT (C) 2021 On-Line Applications Research Corporation (OAR).
0014  *
0015  * Redistribution and use in source and binary forms, with or without
0016  * modification, are permitted provided that the following conditions
0017  * are met:
0018  * 1. Redistributions of source code must retain the above copyright
0019  *    notice, this list of conditions and the following disclaimer.
0020  * 2. Redistributions in binary form must reproduce the above copyright
0021  *    notice, this list of conditions and the following disclaimer in the
0022  *    documentation and/or other materials provided with the distribution.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifdef HAVE_CONFIG_H
0038 #include "config.h"
0039 #endif
0040
0041 #include <rtems/libio_.h>
0042
0043 #include <fcntl.h>
0044 #include <stdlib.h>
0045 #include <string.h>
0046
0047 /**
0048  *  https://pubs.opengroup.org/onlinepubs/9699919799.2008edition/functions/futimens.html
0049  *
0050  *  Set file access and modification times
0051  */
0052 int futimens(
0053   int                    fd,
0054   const struct timespec  times[2]
0055 )
0056 {
0057   int rv;
0058   rtems_libio_t *iop;
0059   struct timespec new_times[2];
0060   const rtems_filesystem_location_info_t *currentloc = NULL;
0061
0062   LIBIO_GET_IOP_WITH_ACCESS( fd, iop, LIBIO_FLAGS_READ, EBADF );
0063
0064   currentloc = &iop->pathinfo;
0065
0066   rv = rtems_filesystem_utime_update( times, new_times );
0067   if ( rv != 0 ) {
0068     rtems_libio_iop_drop( iop );
0069     return rv;
0070   }
0071
0072   rv = rtems_filesystem_utime_check_permissions( currentloc, times );
0073   if ( rv != 0 ) {
0074     rtems_libio_iop_drop( iop );
0075     return rv;
0076   }
0077
0078   rv = (*currentloc->mt_entry->ops->utimens_h)(
0079     currentloc,
0080     new_times
0081   );
0082
0083   rtems_libio_iop_drop( iop );
0084
0085   return rv;
0086 }