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42893aa38f
This patch provides new __futimens64 explicit 64 bit function for setting access and modification time of file (by using its file descriptor). Moreover, a 32 bit version - __futimens has been refactored to internally use __futimens64. The __futimens is now supposed to be used on systems still supporting 32 bit time (__TIMESIZE != 64) - hence the necessary conversions to 64 bit struct __timespec64. When pointer to struct __timespec64 is NULL - the file access and modification time is set to the current one (by the kernel) and no conversions from struct timespec to __timespec64 are performed. The __futimens64 reuses __utimensat64_helper defined for __utimensat64. The test procedure for __futimens64 is the same as for __utimensat64 conversion patch.
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* Change access and modification times of open file. Linux version.
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Copyright (C) 2007-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <time.h>
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#include <sysdep.h>
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/* Change the access time of the file associated with FD to TSP[0] and
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the modification time of FILE to TSP[1].
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Starting with 2.6.22 the Linux kernel has the utimensat syscall which
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can be used to implement futimens. */
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int
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__futimens64 (int fd, const struct __timespec64 tsp64[2])
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{
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if (fd < 0)
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return INLINE_SYSCALL_ERROR_RETURN_VALUE (EBADF);
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return __utimensat64_helper (fd, NULL, &tsp64[0], 0);
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}
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#if __TIMESIZE != 64
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int
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__futimens (int fd, const struct timespec tsp[2])
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{
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struct __timespec64 tsp64[2];
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if (tsp)
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{
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tsp64[0] = valid_timespec_to_timespec64 (tsp[0]);
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tsp64[1] = valid_timespec_to_timespec64 (tsp[1]);
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}
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return __futimens64 (fd, tsp ? &tsp64[0] : NULL);
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}
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#endif
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weak_alias (__futimens, futimens)
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