NAME
getloginclass,
setloginclass —
get/set login class
LIBRARY
library “libc”
SYNOPSIS
#include
<unistd.h>
int
getloginclass(char
*name, size_t
len);
int
setloginclass(const
char *name);
DESCRIPTION
Thegetloginclass()
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
HISTORY
The getloginclass() and
setloginclass() system calls first appeared in
FreeBSD 9.0.