utimes(3-BSD) MISC. REFERENCE MANUAL PAGES utimes(3-BSD)
NAME
utimes - set file times
SYNOPSIS
cc [ flag... ] file ... -lucb
#include <sys/types.h>
int utimes(file, tvp)
char *file;
struct timeval *tvp;
DESCRIPTION
utimes sets the access and modification times of the file
named by file. If tvp is NULL, the access and modification
times are set to the current time. A process must be the
owner of the file or have write permission for the file to
use utimes in this manner. If tvp is not NULL, it is
assumed to point to an array of two timeval structures. The
access time is set to the value of the first member, and the
modification time is set to the value of the second member.
Only the owner of the file or the privileged user may use
utimes in this manner. In either case, the inode-changed
time of the file is set to the current time.
RETURN VALUE
Upon successful completion, a value of 0 is returned. Oth-
erwise, a value of -1 is returned and errno is set to indi-
cate the error.
ERRORS
utimes will fail if one or more of the following are true:
ENOTDIR A component of the path prefix of file
is not a directory.
ENAMETOOLONG The length of a component of file
exceeds 255 characters, or the length of
file exceeds 1023 characters.
ENOENT The file referred to by file does not
exist.
EACCES Search permission is denied for a com-
ponent of the path prefix of file.
ELOOP Too many symbolic links were encountered
in translating file.
EPERM The effective user ID of the process is
not privileged user and not the owner of
the file, and tvp is not NULL.
EACCES The effective user ID of the process is
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utimes(3-BSD) MISC. REFERENCE MANUAL PAGES utimes(3-BSD)
not privileged user and not the owner of
the file, write permission is denied for
the file, and tvp is NULL.
EIO An I/O error occurred while reading from
or writing to the file system.
EROFS The file system containing the file is
mounted read-only.
EFAULT file or tvp points outside the process's
allocated address space.
SEE ALSO
stat(2), utime(2) in the Programmer's Reference Manual.
NOTES
utimes is a library routine that calls the utime system
call.
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