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diff --git a/c/src/lib/libnetworking/sys/systm.h b/c/src/lib/libnetworking/sys/systm.h
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+/*-
+ * Copyright (c) 1982, 1988, 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)systm.h 8.7 (Berkeley) 3/29/95
+ * $Id$
+ */
+
+#ifndef _SYS_SYSTM_H_
+#define _SYS_SYSTM_H_
+
+#include <machine/cpufunc.h>
+
+extern int securelevel; /* system security level (see init(8)) */
+
+extern int cold; /* nonzero if we are doing a cold boot */
+extern const char *panicstr; /* panic message */
+extern char version[]; /* system version */
+extern char copyright[]; /* system copyright */
+
+extern int nblkdev; /* number of entries in bdevsw */
+extern int nchrdev; /* number of entries in cdevsw */
+extern struct swdevt *swdevt; /* swap-device information */
+extern int nswdev; /* number of swap devices */
+extern int nswap; /* size of swap space */
+
+extern int selwait; /* select timeout address */
+
+extern u_char curpriority; /* priority of current process */
+
+extern int physmem; /* physical memory */
+
+extern dev_t dumpdev; /* dump device */
+extern long dumplo; /* offset into dumpdev */
+
+extern dev_t rootdev; /* root device */
+extern struct vnode *rootvp; /* vnode equivalent to above */
+
+extern dev_t swapdev; /* swapping device */
+extern struct vnode *swapdev_vp;/* vnode equivalent to above */
+
+extern int boothowto; /* reboot flags, from console subsystem */
+extern int bootverbose; /* nonzero to print verbose messages */
+
+/*
+ * General function declarations.
+ */
+void Debugger __P((const char *msg));
+int nullop __P((void));
+int eopnotsupp __P((void));
+int einval __P((void));
+int seltrue __P((dev_t dev, int which, struct proc *p));
+int ureadc __P((int, struct uio *));
+void *hashinit __P((int count, int type, u_long *hashmask));
+void *phashinit __P((int count, int type, u_long *nentries));
+
+void panic __P((const char *, ...)) __dead2;
+void boot __P((int)) __dead2;
+void cpu_boot __P((int));
+void tablefull __P((const char *));
+int addlog __P((const char *, ...));
+int kvprintf __P((char const *, void (*)(int, void*), void *, int,
+ _BSD_VA_LIST_));
+void log __P((int, const char *, ...));
+int printf __P((const char *, ...));
+int sprintf __P((char *buf, const char *, ...));
+void uprintf __P((const char *, ...));
+void ttyprintf __P((struct tty *, const char *, ...));
+
+#define bcopy(f,t,n) memcpy((t),(f),(n))
+#define bzero(p,n) memset((p),(0),(n))
+
+int copystr __P((const void *kfaddr, void *kdaddr, size_t len,
+ size_t *lencopied));
+int copyinstr __P((const void *udaddr, void *kaddr, size_t len,
+ size_t *lencopied));
+int copyin __P((const void *udaddr, void *kaddr, size_t len));
+int copyout __P((const void *kaddr, void *udaddr, size_t len));
+
+int fubyte __P((const void *base));
+int fuibyte __P((const void *base));
+int subyte __P((void *base, int byte));
+int suibyte __P((void *base, int byte));
+int fuword __P((const void *base));
+int suword __P((void *base, int word));
+int susword __P((void *base, int word));
+
+int hzto __P((struct timeval *tv));
+void realitexpire __P((void *));
+
+struct clockframe;
+void hardclock __P((struct clockframe *frame));
+void softclock __P((void));
+void statclock __P((struct clockframe *frame));
+
+void startprofclock __P((struct proc *));
+void stopprofclock __P((struct proc *));
+void setstatclockrate __P((int hzrate));
+
+void hardupdate __P((long));
+void hardpps __P((struct timeval *tvp, long usec));
+
+#include <sys/libkern.h>
+
+/* Initialize the world */
+extern void consinit(void);
+extern void usrinfoinit(void);
+extern void cpu_initclocks(void);
+extern void vntblinit(void);
+extern void nchinit(void);
+
+/* Finalize the world. */
+void shutdown_nice __P((void));
+
+/*
+ * Kernel to clock driver interface.
+ */
+void inittodr __P((time_t base));
+void resettodr __P((void));
+void startrtclock __P((void));
+
+/* Timeouts */
+typedef void (timeout_t)(void *); /* actual timeout function type */
+typedef timeout_t *timeout_func_t; /* a pointer to this type */
+
+void timeout(timeout_func_t, void *, int);
+void untimeout(timeout_func_t, void *);
+void logwakeup __P((void));
+
+/* Various other callout lists that modules might want to know about */
+/* shutdown callout list definitions */
+typedef void (*bootlist_fn)(int,void *);
+int at_shutdown(bootlist_fn function, void *arg, int);
+int rm_at_shutdown(bootlist_fn function, void *arg);
+#define SHUTDOWN_PRE_SYNC 0
+#define SHUTDOWN_POST_SYNC 1
+
+/* forking */ /* XXX not yet */
+typedef void (*forklist_fn)(struct proc *parent,struct proc *child,int flags);
+int at_fork(forklist_fn function);
+int rm_at_fork(forklist_fn function);
+
+/* exiting */
+typedef void (*exitlist_fn)(struct proc *procp);
+int at_exit(exitlist_fn function);
+int rm_at_exit(exitlist_fn function);
+
+/* Not exactly a callout LIST, but a callout entry.. */
+/* Allow an external module to define a hardware watchdog tickler */
+/* Normally a process would do this, but there are times when the */
+/* kernel needs to be able to hold off the watchdog, when the process */
+/* is not active, e.g. when dumping core. Costs us a whole 4 bytes to */
+/* make this generic. the variable is in kern_shutdown.c */
+typedef void (*watchdog_tickle_fn)(void);
+extern watchdog_tickle_fn wdog_tickler;
+
+
+/*
+ * Common `proc' functions are declared here so that proc.h can be included
+ * less often.
+ */
+int tsleep __P((void *chan, int pri, char *wmesg, int timo));
+void wakeup __P((void *chan));
+
+#endif /* !_SYS_SYSTM_H_ */