SETMODE(3) BSD Programmer's Manual SETMODE(3)NAME
getmode, setmode - modify mode bits
SYNOPSIS
#include <unistd.h>
mode_t
getmode(const void *set, mode_t mode);
void *
setmode(const char *mode_str);
DESCRIPTION
The getmode() 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 al-
tered, other parts of the file mode may be examined.
The setmode() function takes an absolute (octal) or symbolic value, as
described in chmod(1), as an argument and returns a pointer to mode
values to be supplied to getmode(). Because some of the symbolic values
are relative to the file creation mask, setmode() may call umask(2). If
this occurs, the file creation mask will be restored before setmode() re-
turns. If the calling program changes the value of its file creation mask
after calling setmode(), setmode() must be called again if getmode() is
to modify future file modes correctly.
If the mode passed to setmode() is invalid, setmode() returns NULL. The
caller is responsible for freeing the pointer that setmode() returns.
ERRORS
The setmode() function may fail and set errno for any of the errors
specified for the library routine malloc(3) or to ERANGE if an invalid
octal value was specified.
SEE ALSOchmod(1), stat(2), umask(2), malloc(3)HISTORY
The getmode() and setmode() functions first appeared in 4.4BSD.
MirOS BSD #10-current June 9, 1993 1
