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 33 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.

Debian                                            July 12, 2016                                 GETLOGINCLASS(2)