utime man page on SmartOS

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UTIME(2)							      UTIME(2)

NAME
       utime - set file access and modification times

SYNOPSIS
       #include <sys/types.h>
       #include <utime.h>

       int utime(const char *path, const struct utimbuf *times);

DESCRIPTION
       The utime() function sets the access and modification times of the file
       pointed to by path,  and causes the time of the last file status change
       (st_ctime) to be updated.

       If times is NULL, the access and modification times of the file are set
       to the current time. A process must be the owner of the	file  or  have
       write permission to use utime() in this manner.

       If  times  is  not NULL, times is interpreted as a pointer to a utimbuf
       structure (defined in <utime.h>) and the access and modification	 times
       are  set to the values contained in the designated structure.  Only the
       owner of the file or a process that has the {PRIV_FILE_OWNER} privilege
       asserted in its effective set can use utime() in this manner.

       The utimbuf structure contains the following members:

	 time_t	  actime;    /* access time */
	 time_t	  modtime;   /* modification time */

       The  times  contained  in the members of the utimbuf structure are mea‐
       sured in seconds since 00:00:00 UTC, January 1, 1970.

RETURN VALUES
       Upon successful completion, 0 is returned. Otherwise,  −1  is  returned
       and errno is set to indicate the error.

ERRORS
       The utime() function will fail if:

       EACCES
		       Search  permission is denied by a component of the path
		       prefix.

       EACCES
		       The process does not have appropriate privileges and is
		       not  the	 owner of the file, write permission is denied
		       for the file, and times is NULL.

       EFAULT
		       The path argument points to an illegal address.

       EINTR
		       A signal was caught during the execution of the utime()
		       function.

       EIO
		       An  I/O error occurred while reading from or writing to
		       the file system.

       ELOOP
		       Too many symbolic links were encountered in translating
		       path.

       ENAMETOOLONG
		       The  length  of	the path argument exceeds PATH_MAX, or
		       the length of a path component exceeds  NAME_MAX	 while
		       _POSIX_NO_TRUNC is in effect.

       ENOENT
		       The named file does not exist or is a null pathname.

       ENOLINK
		       The  path  argument  points to a remote machine and the
		       link to that machine is no longer active.

       ENOTDIR
		       A component of the path prefix is not a directory.

       EPERM
		       The effective user of the calling process  is  not  the
		       owner of the file, {PRIV_FILE_OWNER} is not asserted in
		       the effective set of the calling process, and times  is
		       not NULL.

       EROFS
		       The  file  system  containing the file is mounted read-
		       only.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌────────────────────┬───────────────────┐
       │  ATTRIBUTE TYPE    │  ATTRIBUTE VALUE	│
       ├────────────────────┼───────────────────┤
       │Interface Stability │ Committed		│
       ├────────────────────┼───────────────────┤
       │MT-Level	    │ Async-Signal-Safe │
       ├────────────────────┼───────────────────┤
       │Standard	    │ See standards(5). │
       └────────────────────┴───────────────────┘

SEE ALSO
       futimens(2), stat(2), utimes(2),	 attributes(5),	 privileges(5),	 stan‐
       dards(5)

				  Sep 1, 2009			      UTIME(2)
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