SETMODE(3) BSD Library Functions Manual SETMODE(3)

NAME
     ggeettmmooddee, sseettmmooddee - modify mode bits

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>

     modet
     ggeettmmooddee(const void *set, modet mode);

     void *
     sseettmmooddee(const char *modestr);

DESCRIPTION
     The ggeettmmooddee() function returns a copy of the file permission bits mode as
     altered by the values pointed to by set.  While only the mode bits are
     altered, 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 or if memory cannot be allo-
     cated for the return value, sseettmmooddee() returns NULL.

     The value returned from sseettmmooddee() is obtained from mmaalllloocc() and should be
     returned to the system with ffrreeee() when the program is done with it, gen-
     erally after a call to ggeettmmooddee().

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

SEE ALSO
     chmod(1), stat(2), umask(2), malloc(3)

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

BSD                             April 28, 1995                             BSD