*** /cdrom/usr/src/sys/kern/kern_xxx.c	Thu Jan  2 06:07:11 1992
--- sys/kern/kern_xxx.c	Thu Oct  7 00:29:23 1993
***************
*** 102,108 ****
--- 102,149 ----
  	return (error);
  }
  
+ struct getdomainname_args {
+ 	char	*domainname;
+ 	u_int	len;
+ };
+ 
  /* ARGSUSED */
+ int
+ getdomainname(p, uap, retval)
+ 	struct proc *p;
+ 	struct getdomainname_args *uap;
+ 	int *retval;
+ {
+ 	if (uap->len > domainnamelen + 1)
+ 		uap->len = domainnamelen + 1;
+ 	return (copyout((caddr_t)domainname, (caddr_t)uap->domainname, uap->len));
+ }
+ 
+ struct setdomainname_args {
+ 	char	*domainname;
+ 	u_int	len;
+ };
+ 
+ /* ARGSUSED */
+ int
+ setdomainname(p, uap, retval)
+ 	struct proc *p;
+ 	struct setdomainname_args *uap;
+ 	int *retval;
+ {
+ 	int error;
+ 
+ 	if (error = suser(p->p_ucred, &p->p_acflag))
+ 		return (error);
+ 	if (uap->len > sizeof (domainname) - 1)
+ 		return EINVAL;
+ 	domainnamelen = uap->len;
+ 	error = copyin((caddr_t)uap->domainname, domainname, uap->len);
+ 	domainname[domainnamelen] = 0;
+ 	return (error);
+ }
+ 
+ /* ARGSUSED */
  reboot(p, uap, retval)
  	struct proc *p;
  	struct args {
*** /cdrom/usr/src/sys/kern/init_sysent.c	Sat Feb  6 05:36:07 1993
--- sys/kern/init_sysent.c	Thu May  6 15:04:33 1993
***************
*** 158,163 ****
--- 158,165 ----
  int	getfh();
  #else
  #endif
+ int	getdomainname();
+ int	setdomainname();
  #ifdef SYSVSHM
  int	shmsys();
  #else
***************
*** 400,407 ****
  	0, nosys,			/* 160 = nosys */
  	0, nosys,			/* 161 = nosys */
  #endif
! 	0, nosys,			/* 162 = nosys */
! 	0, nosys,			/* 163 = nosys */
  	0, nosys,			/* 164 = nosys */
  	0, nosys,			/* 165 = nosys */
  	0, nosys,			/* 166 = nosys */
--- 402,409 ----
  	0, nosys,			/* 160 = nosys */
  	0, nosys,			/* 161 = nosys */
  #endif
! 	2, getdomainname,		/* 162 = getdomainname */
! 	2, setdomainname,		/* 163 = setdomainname */
  	0, nosys,			/* 164 = nosys */
  	0, nosys,			/* 165 = nosys */
  	0, nosys,			/* 166 = nosys */
*** /cdrom/usr/src/lib/libc/sys/Makefile.inc	Mon Mar  8 15:40:04 1993
--- lib/libc/sys/Makefile.inc	Fri Apr 16 00:43:14 1993
***************
*** 28,34 ****
  	setrlimit.o setsid.o setsockopt.o settimeofday.o setuid.o \
  	shutdown.o sigaction.o sigstack.o socket.o socketpair.o stat.o \
  	statfs.o swapon.o symlink.o sync.o truncate.o umask.o unlink.o \
! 	unmount.o utimes.o vadvise.o wait4.o write.o writev.o
  
  PSEUDO=	_exit.o _getlogin.o
  
--- 28,35 ----
  	setrlimit.o setsid.o setsockopt.o settimeofday.o setuid.o \
  	shutdown.o sigaction.o sigstack.o socket.o socketpair.o stat.o \
  	statfs.o swapon.o symlink.o sync.o truncate.o umask.o unlink.o \
! 	unmount.o utimes.o vadvise.o wait4.o write.o writev.o getdomainname.o \
! 	setdomainname.o
  
  PSEUDO=	_exit.o _getlogin.o
  
***************
*** 75,81 ****
  	sigpending.0 sigprocmask.0 sigreturn.0 sigstack.0 sigsuspend.0 \
  	socket.0 socketpair.0 stat.0 statfs.0 swapon.0 symlink.0 \
  	sync.0 syscall.0 truncate.0 umask.0 unlink.0 utimes.0 \
! 	vfork.0 wait.0 write.0
  
  MLINKS+=brk.2 sbrk.2
  MLINKS+=dup.2 dup2.2
--- 76,82 ----
  	sigpending.0 sigprocmask.0 sigreturn.0 sigstack.0 sigsuspend.0 \
  	socket.0 socketpair.0 stat.0 statfs.0 swapon.0 symlink.0 \
  	sync.0 syscall.0 truncate.0 umask.0 unlink.0 utimes.0 \
! 	vfork.0 wait.0 write.0 getdomainname.0
  
  MLINKS+=brk.2 sbrk.2
  MLINKS+=dup.2 dup2.2
***************
*** 107,109 ****
--- 108,111 ----
  MLINKS+=truncate.2 ftruncate.2
  MLINKS+=wait.2 wait3.2 wait.2 wait4.2 wait.2 waitpid.2
  MLINKS+=write.2 writev.2
+ MLINKS+=getdomainname.2 setdomainname.2
*** /cdrom/usr/src/sys/sys/kernel.h	Sat Sep  5 06:35:47 1992
--- sys/sys/kernel.h	Thu May  6 15:04:35 1993
***************
*** 40,45 ****
--- 40,47 ----
  long hostid;
  char hostname[MAXHOSTNAMELEN];
  int hostnamelen;
+ char domainname[MAXHOSTNAMELEN];
+ int domainnamelen;
  
  /* 1.2 */
  struct timeval boottime;
*** /cdrom/usr/src/sys/sys/syscall.h	Thu Jan  2 06:04:41 1992
--- sys/sys/syscall.h	Thu May  6 15:04:35 1993
***************
*** 160,165 ****
--- 160,167 ----
  #define	SYS_fstatfs	158
  #define	SYS_async_daemon	160
  #define	SYS_getfh	161
+ #define SYS_getdomainname	162
+ #define SYS_setdomainname	163
  #define	SYS_shmsys	171
  #define	SYS_setgid	181
  #define	SYS_setegid	182