1 .\" Copyright (c) 2006, 2008, Michael Kerrisk
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25 .TH FUTIMES 3 2013-10-29 "Linux" "Linux Programmer's Manual"
27 futimes, lutimes \- change file timestamps
30 .B #include <sys/time.h>
32 .BI "int futimes(int " fd ", const struct timeval " tv [2]);
34 .BI "int lutimes(const char *" filename ", const struct timeval " tv [2]);
38 Feature Test Macro Requirements for glibc (see
39 .BR feature_test_macros (7)):
47 changes the access and modification times of a file in the same way as
49 with the difference that the file whose timestamps are to be changed
50 is specified via a file descriptor,
52 rather than via a pathname.
55 changes the access and modification times of a file in the same way as
57 with the difference that if
59 refers to a symbolic link, then the link is not dereferenced:
60 instead, the timestamps of the symbolic link are changed.
62 On success, zero is returned.
63 On error, \-1 is returned, and
69 with the following additions for
74 is not a valid file descriptor.
79 filesystem could not be accessed.
81 The following additional error may occur for
85 The kernel does not support this call; Linux 2.6.22 or later is required.
88 is available since glibc 2.3.
90 is available since glibc 2.6, and is implemented using the
92 system call, which is supported since kernel 2.6.22.
94 .SS Multithreading (see pthreads(7))
99 functions are thread-safe.
101 These functions are not specified in any standard.
102 Other than Linux, they are available only on the BSDs.
108 This page is part of release 3.67 of the Linux
111 A description of the project,
112 information about reporting bugs,
113 and the latest version of this page,
115 \%http://www.kernel.org/doc/man\-pages/.