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Annotation of researchv10dc/man/adm/man2/chmod.2, revision 1.1

1.1     ! root        1: .TH CHMOD 2
        !             2: .CT 2 file_inq_creat dirs secur
        !             3: .SH NAME
        !             4: chmod, fchmod, chown, fchown, utime \(mi change file mode, owner, group, or times
        !             5: .SH SYNOPSIS
        !             6: .nf
        !             7: .B int chmod(file, mode)
        !             8: .B char *name;
        !             9: .PP
        !            10: .B int fchmod(fildes, mode)
        !            11: .PP
        !            12: .B int chown(file, uid, gid)
        !            13: .B char *name;
        !            14: .PP
        !            15: .B int fchown(fildes, uid, gid)
        !            16: .PP
        !            17: .B #include <sys/types.h>
        !            18: .PP
        !            19: .B int utime(file, timep)
        !            20: .B char *file;
        !            21: .B time_t timep[2];
        !            22: .fi
        !            23: .SH DESCRIPTION
        !            24: These functions change inode information for the file named by
        !            25: a null-terminated string or associated with file descriptor
        !            26: .IR fildes .
        !            27: .PP
        !            28: .I Chmod
        !            29: and
        !            30: .I fchmod
        !            31: change file permissions and other mode bits to
        !            32: .IR mode .
        !            33: Mode values are defined in
        !            34: .IR stat (2).
        !            35: Only the
        !            36: .B 07777
        !            37: bits of 
        !            38: .IR mode
        !            39: are significant.
        !            40: Only the owner of a file (or super-user) may change the mode.
        !            41: Only a process in the file's group (or super-user) may set
        !            42: the set-group-id bit, 
        !            43: .BR S_ISGID .
        !            44: .PP
        !            45: .I Chown
        !            46: and
        !            47: .I fchown
        !            48: change the owner,
        !            49: .I uid,
        !            50: and the group,
        !            51: .I gid,
        !            52: of a file.
        !            53: Only the super-user may change a file's owner.
        !            54: The owner of a file
        !            55: may change its group
        !            56: to match the current effective groupid.
        !            57: Other changes
        !            58: are restricted to the super-user.
        !            59: .PP
        !            60: .I Utime
        !            61: sets the
        !            62: .B st_atime
        !            63: (access time)
        !            64: and
        !            65: .B st_mtime
        !            66: (modify time)
        !            67: fields for
        !            68: .I file
        !            69: to
        !            70: .B timep[0]
        !            71: and
        !            72: .B timep[1]
        !            73: respectively.
        !            74: The
        !            75: .B st_ctime
        !            76: (inode change time)
        !            77: field for
        !            78: .I file
        !            79: is set to the current time.
        !            80: .PP
        !            81: The caller must be the owner of the file or the super-user.
        !            82: .SH "SEE ALSO"
        !            83: .IR stat (2),
        !            84: .IR time (2)
        !            85: .SH DIAGNOSTICS
        !            86: all:
        !            87: .BR EIO ,
        !            88: .BR EPERM
        !            89: .br
        !            90: .IR "chmod, chown, utime" :
        !            91: .BR ELOOP ,
        !            92: .BR ENOENT ,
        !            93: .BR ENOTDIR ,
        !            94: .BR EACCES ,
        !            95: .B EFAULT
        !            96: .br
        !            97: .IR "fchmod, fchown" :
        !            98: .B EBADF
        !            99: .SH BUGS
        !           100: An attempt to change the inode data for
        !           101: a file on a read-only file system
        !           102: is quietly ignored.

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