NAME

     getloginclass, setloginclass — get/set login class

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     int
     getloginclass(char *name, size_t len);

     int
     setloginclass(const char *name);

DESCRIPTION

     The getloginclass() routine returns the login class name associated with the calling
     process, as previously set by setloginclass().  The caller must provide the buffer name with
     length len bytes to hold the result.  The buffer should be at least MAXLOGNAME bytes in
     length.

     The setloginclass() system call sets the login class of the calling process to name.  This
     system call is restricted to the super-user, and is normally used only when a new session is
     being created on behalf of the named user (for example, at login time, or when a remote
     shell is invoked).  Processes inherit login class from their parents.

RETURN VALUES

     Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and
     the global variable errno is set to indicate the error.

ERRORS

     The following errors may be returned by these calls:

     [EFAULT]           The name argument gave an invalid address.

     [EINVAL]           The name argument pointed to a string that was too long.  Login class
                        names are limited to MAXLOGNAME (from <sys/param.h>) characters,
                        currently 17 including null.

     [EPERM]            The caller tried to set the login class and was not the super-user.

     [ENAMETOOLONG]     The size of the buffer is smaller than the result to be returned.

SEE ALSO

     ps(1), setusercontext(3), login.conf(5), rctl(8)

HISTORY

     The getloginclass() and setloginclass() system calls first appeared in FreeBSD 9.0.