GETDOMAINNAME(3)       FreeBSD Library Functions Manual       GETDOMAINNAME(3)

NAME

     getdomainname, setdomainname - get/set the NIS domain name of current
     host

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     int
     getdomainname(char *name, int namelen);

     int
     setdomainname(const char *name, int namelen);

DESCRIPTION

     The getdomainname() function returns the standard NIS domain name for the
     current host, as previously set by setdomainname().  The namelen argument
     specifies the size of the name array.  The returned name is null-
     terminated unless insufficient space is provided.

     The setdomainname() function sets the NIS domain name of the host machine
     to be name, which has length namelen.  This call is restricted to the
     super-user and is normally used only when the system is bootstrapped.

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 or namelen argument gave an invalid address.

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

SEE ALSO

     gethostid(3), gethostname(3), sysctl(3)

HISTORY

     The getdomainname() function appeared in 4.2BSD.

BUGS

     Domain names are limited to MAXHOSTNAMELEN (from <sys/param.h>)
     characters, currently 256.

FreeBSD 15.1-STABLE-HBSD          May 6, 1994                 GETDOMAINNAME(3)