GNU/Linux man pages
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GNU/Linux |
Debian 7.3.0(Wheezy) |
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futimes(3) |
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futimes, lutimes − change file timestamps
#include <sys/time.h>
int futimes(int fd, const struct timeval tv[2]);
int lutimes(const char *filename, const struct timeval tv[2]);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
futimes(), lutimes(): _BSD_SOURCE
futimes() changes the access and modification times of a file in the same way as utimes(2), with the difference that the file whose timestamps are to be changed is specified via a file descriptor, fd, rather than via a pathname.
lutimes() changes the access and modification times of a file in the same way as utimes(2), with the difference that if filename refers to a symbolic link, then the link is not dereferenced: instead, the timestamps of the symbolic link are changed.
On success, zero is returned. On error, −1 is returned, and errno is set appropriately.
Errors are as for utimes(2), with the following additions for futimes():
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EBADF |
fd is not a valid file descriptor. |
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ENOSYS |
The /proc file system could not be accessed. |
futimes() is available since glibc 2.3. lutimes() is available since glibc 2.6, and is implemented using the utimensat(2) system call, which is supported since kernel 2.6.22.
These functions are not specified in any standard. Other than Linux, they are only available on the BSDs.
utime(2), utimensat(2), symlink(7)
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
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futimes(3) | |