4.4BSD/usr/share/man/cat3/setmode.0

SETMODE(3)                  BSD Programmer's Manual                 SETMODE(3)

NNAAMMEE
     ggeettmmooddee, sseettmmooddee - modify mode bits

SSYYNNOOPPSSIISS
     _m_o_d_e___t
     ggeettmmooddee(_c_o_n_s_t _v_o_i_d _*_s_e_t, _m_o_d_e___t _m_o_d_e);

     _v_o_i_d
     sseettmmooddee(_c_o_n_s_t _c_h_a_r _*_m_o_d_e___s_t_r);

DDEESSCCRRIIPPTTIIOONN
     The ggeettmmooddee() function returns a copy of the file permission bits _m_o_d_e as
     altered by the values pointed to by _s_e_t. While only the mode bits are al-
     tered, other parts of the file mode may be examined.

     The sseettmmooddee() function takes an absolute (octal) or symbolic value, as
     described in chmod(1),  as an argument and returns a pointer to mode val-
     ues to be supplied to ggeettmmooddee().  Because some of the symbolic values are
     relative to the file creation mask, sseettmmooddee() may call umask(2).  If this
     occurs, the file creation mask will be restored before sseettmmooddee() returns.
     If the calling program changes the value of its file creation mask after
     calling sseettmmooddee(), sseettmmooddee() must be called again if ggeettmmooddee() is to mod-
     ify future file modes correctly.

     If the mode passed to sseettmmooddee() is invalid, sseettmmooddee() returns NULL.

EERRRROORRSS
     The sseettmmooddee() function may fail and set errno for any of the errors spec-
     ified for the library routine malloc(3).

SSEEEE AALLSSOO
     chmod(1),  stat(2),  umask(2),  malloc(3)

HHIISSTTOORRYY
     The ggeettmmooddee() and sseettmmooddee() functions first appeared in 4.4BSD.

4.4BSD                           June 9, 1993                                1