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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/time.h>
     30 
     31 #include <errno.h>
     32 #include <fcntl.h>
     33 #include <sys/stat.h>
     34 
     35 #include "private/bionic_time_conversions.h"
     36 
     37 static int futimesat(int fd, const char* path, const timeval tv[2], int flags) {
     38   timespec ts[2];
     39   if (tv && (!timespec_from_timeval(ts[0], tv[0]) || !timespec_from_timeval(ts[1], tv[1]))) {
     40     errno = EINVAL;
     41     return -1;
     42   }
     43   return utimensat(fd, path, tv ? ts : nullptr, flags);
     44 }
     45 
     46 int utimes(const char* path, const timeval tv[2]) {
     47   return futimesat(AT_FDCWD, path, tv, 0);
     48 }
     49 
     50 int lutimes(const char* path, const timeval tv[2]) {
     51   return futimesat(AT_FDCWD, path, tv, AT_SYMLINK_NOFOLLOW);
     52 }
     53 
     54 int futimesat(int fd, const char* path, const timeval tv[2]) {
     55   return futimesat(fd, path, tv, 0);
     56 }
     57 
     58 int futimes(int fd, const timeval tv[2]) {
     59   timespec ts[2];
     60   if (tv && (!timespec_from_timeval(ts[0], tv[0]) || !timespec_from_timeval(ts[1], tv[1]))) {
     61     errno = EINVAL;
     62     return -1;
     63   }
     64   return futimens(fd, tv ? ts : nullptr);
     65 }
     66