[unix-history] / usr / src / sbin / ifconfig / ifconfig.c

/*
 * Copyright (c) 1983 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1983 The Regents of the University of California.\n\
 All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)ifconfig.c	5.8 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/ioctl.h>

#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#define	NSIP
#include <netns/ns.h>
#include <netns/ns_if.h>
#include <netdb.h>

#define EON
#include <netiso/iso.h>
#include <netiso/iso_var.h>
#include <sys/protosw.h>

#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>

struct	ifreq		ifr, ridreq;
struct	ifaliasreq	addreq;
struct	iso_ifreq	iso_ridreq;
struct	iso_aliasreq	iso_addreq;
struct	sockaddr_in	netmask;

char	name[30];
int	flags;
int	metric;
int	nsellength = 1;
int	setaddr;
int	setipdst;
int	doalias;
int	clearaddr;
int	newaddr = 1;
int	s;
extern	int errno;

int	setifflags(), setifaddr(), setifdstaddr(), setifnetmask();
int	setifmetric(), setifbroadaddr(), setifipdst();
int	notealias(), setsnpaoffset(), setnsellength(), notrailers();

#define	NEXTARG		0xffffff

struct	cmd {
	char	*c_name;
	int	c_parameter;		/* NEXTARG means next argv */
	int	(*c_func)();
} cmds[] = {
	{ "up",		IFF_UP,		setifflags } ,
	{ "down",	-IFF_UP,	setifflags },
	{ "trailers",	-1,		notrailers },
	{ "-trailers",	1,		notrailers },
	{ "arp",	-IFF_NOARP,	setifflags },
	{ "-arp",	IFF_NOARP,	setifflags },
	{ "debug",	IFF_DEBUG,	setifflags },
	{ "-debug",	-IFF_DEBUG,	setifflags },
	{ "alias",	IFF_UP,		notealias },
	{ "-alias",	-IFF_UP,	notealias },
	{ "delete",	-IFF_UP,	notealias },
#ifdef notdef
#define	EN_SWABIPS	0x1000
	{ "swabips",	EN_SWABIPS,	setifflags },
	{ "-swabips",	-EN_SWABIPS,	setifflags },
#endif
	{ "netmask",	NEXTARG,	setifnetmask },
	{ "metric",	NEXTARG,	setifmetric },
	{ "broadcast",	NEXTARG,	setifbroadaddr },
	{ "ipdst",	NEXTARG,	setifipdst },
	{ "snpaoffset",	NEXTARG,	setsnpaoffset },
	{ "nsellength",	NEXTARG,	setnsellength },
	{ "link0",	IFF_LINK0,	setifflags } ,
	{ "-link0",	-IFF_LINK0,	setifflags } ,
	{ "link1",	IFF_LINK1,	setifflags } ,
	{ "-link1",	-IFF_LINK1,	setifflags } ,
	{ "link2",	IFF_LINK2,	setifflags } ,
	{ "-link2",	-IFF_LINK2,	setifflags } ,
	{ 0,		0,		setifaddr },
	{ 0,		0,		setifdstaddr },
};

/*
 * XNS support liberally adapted from
 * code written at the University of Maryland
 * principally by James O'Toole and Chris Torek.
 */
int	in_status(), in_getaddr();
int	xns_status(), xns_getaddr();
int	iso_status(), iso_getaddr();

/* Known address families */
struct afswtch {
	char *af_name;
	short af_af;
	int (*af_status)();
	int (*af_getaddr)();
	int af_difaddr;
	int af_aifaddr;
	caddr_t af_ridreq;
	caddr_t af_addreq;
} afs[] = {
#define C(x) ((caddr_t) &x)
	{ "inet", AF_INET, in_status, in_getaddr,
	     SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
	{ "ns", AF_NS, xns_status, xns_getaddr,
	     SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
	{ "iso", AF_ISO, iso_status, iso_getaddr,
	     SIOCDIFADDR_ISO, SIOCAIFADDR_ISO, C(iso_ridreq), C(iso_addreq) },
	{ 0,	0,	    0,		0 }
};

struct afswtch *afp;	/*the address family being set or asked about*/

main(argc, argv)
	int argc;
	char *argv[];
{
	int af = AF_INET;
	register struct afswtch *rafp;

	if (argc < 2) {
		fprintf(stderr, "usage: ifconfig interface\n%s%s%s%s%s",
		    "\t[ af [ address [ dest_addr ] ] [ up ] [ down ]",
			    "[ netmask mask ] ]\n",
		    "\t[ metric n ]\n",
		    "\t[ arp | -arp ]\n",
		    "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ] \n");
		exit(1);
	}
	argc--, argv++;
	strncpy(name, *argv, sizeof(name));
	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
	argc--, argv++;
	if (argc > 0) {
		for (afp = rafp = afs; rafp->af_name; rafp++)
			if (strcmp(rafp->af_name, *argv) == 0) {
				afp = rafp; argc--; argv++;
				break;
			}
		rafp = afp;
		af = ifr.ifr_addr.sa_family = rafp->af_af;
	}
	s = socket(af, SOCK_DGRAM, 0);
	if (s < 0) {
		perror("ifconfig: socket");
		exit(1);
	}
	if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
		Perror("ioctl (SIOCGIFFLAGS)");
		exit(1);
	}
	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
	flags = ifr.ifr_flags;
	if (ioctl(s, SIOCGIFMETRIC, (caddr_t)&ifr) < 0)
		perror("ioctl (SIOCGIFMETRIC)");
	else
		metric = ifr.ifr_metric;
	if (argc == 0) {
		status();
		exit(0);
	}
	while (argc > 0) {
		register struct cmd *p;

		for (p = cmds; p->c_name; p++)
			if (strcmp(*argv, p->c_name) == 0)
				break;
		if (p->c_name == 0 && setaddr)
			p++;	/* got src, do dst */
		if (p->c_func) {
			if (p->c_parameter == NEXTARG) {
				(*p->c_func)(argv[1]);
				argc--, argv++;
			} else
				(*p->c_func)(*argv, p->c_parameter);
		}
		argc--, argv++;
	}
	if (af == AF_ISO)
		adjust_nsellength();
	if (setipdst && af==AF_NS) {
		struct nsip_req rq;
		int size = sizeof(rq);

		rq.rq_ns = addreq.ifra_addr;
		rq.rq_ip = addreq.ifra_dstaddr;

		if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0)
			Perror("Encapsulation Routing");
	}
	if (clearaddr) {
		int ret;
		strncpy(rafp->af_ridreq, name, sizeof ifr.ifr_name);
		if ((ret = ioctl(s, rafp->af_difaddr, rafp->af_ridreq)) < 0) {
			if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
				/* means no previous address for interface */
			} else
				Perror("ioctl (SIOCDIFADDR)");
		}
	}
	if (newaddr) {
		strncpy(rafp->af_addreq, name, sizeof ifr.ifr_name);
		if (ioctl(s, rafp->af_aifaddr, rafp->af_addreq) < 0)
			Perror("ioctl (SIOCAIFADDR)");
	}
	exit(0);
}
#define RIDADDR 0
#define ADDR	1
#define MASK	2
#define DSTADDR	3

/*ARGSUSED*/
setifaddr(addr, param)
	char *addr;
	short param;
{
	/*
	 * Delay the ioctl to set the interface addr until flags are all set.
	 * The address interpretation may depend on the flags,
	 * and the flags may change when the address is set.
	 */
	setaddr++;
	if (doalias == 0)
		clearaddr = 1;
	(*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR));
}

setifnetmask(addr)
	char *addr;
{
	(*afp->af_getaddr)(addr, MASK);
}

setifbroadaddr(addr)
	char *addr;
{
	(*afp->af_getaddr)(addr, DSTADDR);
}

setifipdst(addr)
	char *addr;
{
	in_getaddr(addr, DSTADDR);
	setipdst++;
	clearaddr = 0;
	newaddr = 0;
}
#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
/*ARGSUSED*/
notealias(addr, param)
	char *addr;
{
	if (setaddr && doalias == 0 && param < 0)
		bcopy((caddr_t)rqtosa(af_addreq),
		      (caddr_t)rqtosa(af_ridreq),
		      rqtosa(af_addreq)->sa_len);
	doalias = param;
	if (param < 0) {
		clearaddr = 1;
		newaddr = 0;
	} else
		clearaddr = 0;
}

/*ARGSUSED*/
notrailers(vname, value)
	char *vname;
	int value;
{
	printf("Note: trailers are no longer sent, but always received\n");
}

/*ARGSUSED*/
setifdstaddr(addr, param)
	char *addr;
	int param;
{
	(*afp->af_getaddr)(addr, DSTADDR);
}

setifflags(vname, value)
	char *vname;
	short value;
{
 	if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
 		Perror("ioctl (SIOCGIFFLAGS)");
 		exit(1);
 	}
	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
 	flags = ifr.ifr_flags;

	if (value < 0) {
		value = -value;
		flags &= ~value;
	} else
		flags |= value;
	ifr.ifr_flags = flags;
	if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0)
		Perror(vname);
}

setifmetric(val)
	char *val;
{
	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
	ifr.ifr_metric = atoi(val);
	if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
		perror("ioctl (set metric)");
}

setsnpaoffset(val)
	char *val;
{
	iso_addreq.ifra_snpaoffset = atoi(val);
}

#define	IFFBITS \
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\
\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2\20MULTICAST"

/*
 * Print the status of the interface.  If an address family was
 * specified, show it and it only; otherwise, show them all.
 */
status()
{
	register struct afswtch *p = afp;
	short af = ifr.ifr_addr.sa_family;

	printf("%s: ", name);
	printb("flags", flags, IFFBITS);
	if (metric)
		printf(" metric %d", metric);
	putchar('\n');
	if ((p = afp) != NULL) {
		(*p->af_status)(1);
	} else for (p = afs; p->af_name; p++) {
		ifr.ifr_addr.sa_family = p->af_af;
		(*p->af_status)(0);
	}
}

in_status(force)
	int force;
{
	struct sockaddr_in *sin;
	char *inet_ntoa();

	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
	if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) {
		if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
			if (!force)
				return;
			bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
		} else
			perror("ioctl (SIOCGIFADDR)");
	}
	sin = (struct sockaddr_in *)&ifr.ifr_addr;
	printf("\tinet %s ", inet_ntoa(sin->sin_addr));
	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
	if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) {
		if (errno != EADDRNOTAVAIL)
			perror("ioctl (SIOCGIFNETMASK)");
		bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
	} else
		netmask.sin_addr =
		    ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr;
	if (flags & IFF_POINTOPOINT) {
		if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) {
			if (errno == EADDRNOTAVAIL)
			    bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
			else
			    perror("ioctl (SIOCGIFDSTADDR)");
		}
		strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
		sin = (struct sockaddr_in *)&ifr.ifr_dstaddr;
		printf("--> %s ", inet_ntoa(sin->sin_addr));
	}
	printf("netmask %x ", ntohl(netmask.sin_addr.s_addr));
	if (flags & IFF_BROADCAST) {
		if (ioctl(s, SIOCGIFBRDADDR, (caddr_t)&ifr) < 0) {
			if (errno == EADDRNOTAVAIL)
			    bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
			else
			    perror("ioctl (SIOCGIFADDR)");
		}
		strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
		sin = (struct sockaddr_in *)&ifr.ifr_addr;
		if (sin->sin_addr.s_addr != 0)
			printf("broadcast %s", inet_ntoa(sin->sin_addr));
	}
	putchar('\n');
}


xns_status(force)
	int force;
{
	struct sockaddr_ns *sns;

	close(s);
	s = socket(AF_NS, SOCK_DGRAM, 0);
	if (s < 0) {
		if (errno == EPROTONOSUPPORT)
			return;
		perror("ifconfig: socket");
		exit(1);
	}
	if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) {
		if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
			if (!force)
				return;
			bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
		} else
			perror("ioctl (SIOCGIFADDR)");
	}
	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
	sns = (struct sockaddr_ns *)&ifr.ifr_addr;
	printf("\tns %s ", ns_ntoa(sns->sns_addr));
	if (flags & IFF_POINTOPOINT) { /* by W. Nesheim@Cornell */
		if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) {
			if (errno == EADDRNOTAVAIL)
			    bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
			else
			    Perror("ioctl (SIOCGIFDSTADDR)");
		}
		strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
		sns = (struct sockaddr_ns *)&ifr.ifr_dstaddr;
		printf("--> %s ", ns_ntoa(sns->sns_addr));
	}
	putchar('\n');
}

iso_status(force)
	int force;
{
	struct sockaddr_iso *siso;
	struct iso_ifreq ifr;

	close(s);
	s = socket(AF_ISO, SOCK_DGRAM, 0);
	if (s < 0) {
		if (errno == EPROTONOSUPPORT)
			return;
		perror("ifconfig: socket");
		exit(1);
	}
	bzero((caddr_t)&ifr, sizeof(ifr));
	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
	if (ioctl(s, SIOCGIFADDR_ISO, (caddr_t)&ifr) < 0) {
		if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
			if (!force)
				return;
			bzero((char *)&ifr.ifr_Addr, sizeof(ifr.ifr_Addr));
		} else {
			perror("ioctl (SIOCGIFADDR_ISO)");
			exit(1);
		}
	}
	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
	siso = &ifr.ifr_Addr;
	printf("\tiso %s ", iso_ntoa(&siso->siso_addr));
	if (ioctl(s, SIOCGIFNETMASK_ISO, (caddr_t)&ifr) < 0) {
		if (errno != EADDRNOTAVAIL)
			perror("ioctl (SIOCGIFNETMASK_ISO)");
	} else {
		printf(" netmask %s ", iso_ntoa(&siso->siso_addr));
	}
	if (flags & IFF_POINTOPOINT) {
		if (ioctl(s, SIOCGIFDSTADDR_ISO, (caddr_t)&ifr) < 0) {
			if (errno == EADDRNOTAVAIL)
			    bzero((char *)&ifr.ifr_Addr, sizeof(ifr.ifr_Addr));
			else
			    Perror("ioctl (SIOCGIFDSTADDR_ISO)");
		}
		strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
		siso = &ifr.ifr_Addr;
		printf("--> %s ", iso_ntoa(&siso->siso_addr));
	}
	putchar('\n');
}

Perror(cmd)
	char *cmd;
{
	extern int errno;

	fprintf(stderr, "ifconfig: ");
	switch (errno) {

	case ENXIO:
		fprintf(stderr, "%s: no such interface\n", cmd);
		break;

	case EPERM:
		fprintf(stderr, "%s: permission denied\n", cmd);
		break;

	default:
		perror(cmd);
	}
	exit(1);
}

struct	in_addr inet_makeaddr();

#define SIN(x) ((struct sockaddr_in *) &(x))
struct sockaddr_in *sintab[] = {
SIN(ridreq.ifr_addr), SIN(addreq.ifra_addr),
SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)};

in_getaddr(s, which)
	char *s;
{
	register struct sockaddr_in *sin = sintab[which];
	struct hostent *hp;
	struct netent *np;
	int val;

	sin->sin_len = sizeof(*sin);
	if (which != MASK)
		sin->sin_family = AF_INET;

	if ((val = inet_addr(s)) != -1)
		sin->sin_addr.s_addr = val;
	else if (hp = gethostbyname(s))
		bcopy(hp->h_addr, (char *)&sin->sin_addr, hp->h_length);
	else if (np = getnetbyname(s))
		sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
	else {
		fprintf(stderr, "%s: bad value\n", s);
		exit(1);
	}
}

/*
 * Print a value a la the %b format of the kernel's printf
 */
printb(s, v, bits)
	char *s;
	register char *bits;
	register unsigned short v;
{
	register int i, any = 0;
	register char c;

	if (bits && *bits == 8)
		printf("%s=%o", s, v);
	else
		printf("%s=%x", s, v);
	bits++;
	if (bits) {
		putchar('<');
		while (i = *bits++) {
			if (v & (1 << (i-1))) {
				if (any)
					putchar(',');
				any = 1;
				for (; (c = *bits) > 32; bits++)
					putchar(c);
			} else
				for (; *bits > 32; bits++)
					;
		}
		putchar('>');
	}
}

#define SNS(x) ((struct sockaddr_ns *) &(x))
struct sockaddr_ns *snstab[] = {
SNS(ridreq.ifr_addr), SNS(addreq.ifra_addr),
SNS(addreq.ifra_mask), SNS(addreq.ifra_broadaddr)};

xns_getaddr(addr, which)
char *addr;
{
	struct sockaddr_ns *sns = snstab[which];
	struct ns_addr ns_addr();

	sns->sns_family = AF_NS;
	sns->sns_len = sizeof(*sns);
	sns->sns_addr = ns_addr(addr);
	if (which == MASK)
		printf("Attempt to set XNS netmask will be ineffectual\n");
}

#define SISO(x) ((struct sockaddr_iso *) &(x))
struct sockaddr_iso *sisotab[] = {
SISO(iso_ridreq.ifr_Addr), SISO(iso_addreq.ifra_addr),
SISO(iso_addreq.ifra_mask), SISO(iso_addreq.ifra_dstaddr)};

iso_getaddr(addr, which)
char *addr;
{
	register struct sockaddr_iso *siso = sisotab[which];
	struct iso_addr *iso_addr();
	siso->siso_addr = *iso_addr(addr);

	if (which == MASK) {
		siso->siso_len = TSEL(siso) - (caddr_t)(siso);
		siso->siso_nlen = 0;
	} else {
		siso->siso_len = sizeof(*siso);
		siso->siso_family = AF_ISO;
	}
}

setnsellength(val)
	char *val;
{
	nsellength = atoi(val);
	if (nsellength < 0) {
		fprintf(stderr, "Negative NSEL length is absurd\n");
		exit (1);
	}
	if (afp == 0 || afp->af_af != AF_ISO) {
		fprintf(stderr, "Setting NSEL length valid only for iso\n");
		exit (1);
	}
}

fixnsel(s)
register struct sockaddr_iso *s;
{
	if (s->siso_family == 0)
		return;
	s->siso_tlen = nsellength;
}

adjust_nsellength()
{
	fixnsel(sisotab[RIDADDR]);
	fixnsel(sisotab[ADDR]);
	fixnsel(sisotab[DSTADDR]);
}
Commit	Line	Data
0fd5cf4f	1	/*
c920aaf7	2	* Copyright (c) 1983 The Regents of the University of California.
40c992d9 KB	3	* All rights reserved.
40c992d9 KB	4	*
c920aaf7	5	* %sccs.include.redist.c%
0fd5cf4f MK	6	*/
0fd5cf4f MK	7
b3eab9f9	8	#ifndef lint
0fd5cf4f	9	char copyright[] =
c920aaf7	10	"@(#) Copyright (c) 1983 The Regents of the University of California.\n\
0fd5cf4f	11	All rights reserved.\n";
40c992d9	12	#endif /* not lint */
0fd5cf4f MK	13
0fd5cf4f MK	14	#ifndef lint
22506e09	15	static char sccsid[] = "@(#)ifconfig.c 5.8 (Berkeley) %G%";
40c992d9	16	#endif /* not lint */
0fd5cf4f	17
28806944	18	#include <sys/param.h>
b3eab9f9 SL	19	#include <sys/socket.h>
	20	#include <sys/ioctl.h>
	21
b3eab9f9	22	#include <net/if.h>
62e9bc4a	23	#include <netinet/in.h>
28806944	24	#include <arpa/inet.h>
62e9bc4a KS	25
	26	#define NSIP
	27	#include <netns/ns.h>
	28	#include <netns/ns_if.h>
28806944	29	#include <netdb.h>
b3eab9f9	30
22b2b267	31	#define EON
59c3b7d8 KS	32	#include <netiso/iso.h>
59c3b7d8 KS	33	#include <netiso/iso_var.h>
22b2b267	34	#include <sys/protosw.h>
59c3b7d8	35
28806944	36	#include <unistd.h>
b3eab9f9 SL	37	#include <stdio.h>
	38	#include <errno.h>
	39	#include <ctype.h>
28806944 KB	40	#include <stdlib.h>
28806944 KB	41	#include <string.h>
b3eab9f9	42
59c3b7d8 KS	43	struct ifreq ifr, ridreq;
	44	struct ifaliasreq addreq;
	45	struct iso_ifreq iso_ridreq;
ffdba101	46	struct iso_aliasreq iso_addreq;
59c3b7d8 KS	47	struct sockaddr_in netmask;
59c3b7d8 KS	48
b3eab9f9	49	char name[30];
0fd5cf4f	50	int flags;
f5f09b9d	51	int metric;
ffdba101	52	int nsellength = 1;
dea973a0	53	int setaddr;
62e9bc4a	54	int setipdst;
59c3b7d8	55	int doalias;
22b2b267	56	int clearaddr;
59c3b7d8	57	int newaddr = 1;
b3eab9f9	58	int s;
0fd5cf4f MK	59	extern int errno;
	60
	61	int setifflags(), setifaddr(), setifdstaddr(), setifnetmask();
f5f09b9d	62	int setifmetric(), setifbroadaddr(), setifipdst();
22506e09	63	int notealias(), setsnpaoffset(), setnsellength(), notrailers();
b3eab9f9	64
0fd5cf4f	65	#define NEXTARG 0xffffff
b3eab9f9 SL	66
	67	struct cmd {
	68	char *c_name;
0fd5cf4f	69	int c_parameter; /* NEXTARG means next argv */
b3eab9f9 SL	70	int (*c_func)();
	71	} cmds[] = {
	72	{ "up", IFF_UP, setifflags } ,
	73	{ "down", -IFF_UP, setifflags },
22506e09 KS	74	{ "trailers", -1, notrailers },
22506e09 KS	75	{ "-trailers", 1, notrailers },
1095926d MK	76	{ "arp", -IFF_NOARP, setifflags },
1095926d MK	77	{ "-arp", IFF_NOARP, setifflags },
717eb130 CL	78	{ "debug", IFF_DEBUG, setifflags },
717eb130 CL	79	{ "-debug", -IFF_DEBUG, setifflags },
59c3b7d8 KS	80	{ "alias", IFF_UP, notealias },
	81	{ "-alias", -IFF_UP, notealias },
	82	{ "delete", -IFF_UP, notealias },
a390ced5	83	#ifdef notdef
0fd5cf4f	84	#define EN_SWABIPS 0x1000
a390ced5 SL	85	{ "swabips", EN_SWABIPS, setifflags },
	86	{ "-swabips", -EN_SWABIPS, setifflags },
	87	#endif
0fd5cf4f	88	{ "netmask", NEXTARG, setifnetmask },
f5f09b9d	89	{ "metric", NEXTARG, setifmetric },
0fd5cf4f	90	{ "broadcast", NEXTARG, setifbroadaddr },
62e9bc4a	91	{ "ipdst", NEXTARG, setifipdst },
42f9d80e KS	92	{ "snpaoffset", NEXTARG, setsnpaoffset },
42f9d80e KS	93	{ "nsellength", NEXTARG, setnsellength },
4489b2ac KS	94	{ "link0", IFF_LINK0, setifflags } ,
	95	{ "-link0", -IFF_LINK0, setifflags } ,
	96	{ "link1", IFF_LINK1, setifflags } ,
	97	{ "-link1", -IFF_LINK1, setifflags } ,
	98	{ "link2", IFF_LINK2, setifflags } ,
	99	{ "-link2", -IFF_LINK2, setifflags } ,
b3eab9f9	100	{ 0, 0, setifaddr },
40a42b7f	101	{ 0, 0, setifdstaddr },
b3eab9f9 SL	102	};
b3eab9f9 SL	103
62e9bc4a KS	104	/*
	105	* XNS support liberally adapted from
	106	* code written at the University of Maryland
	107	* principally by James O'Toole and Chris Torek.
	108	*/
62e9bc4a KS	109	int in_status(), in_getaddr();
62e9bc4a KS	110	int xns_status(), xns_getaddr();
59c3b7d8	111	int iso_status(), iso_getaddr();
62e9bc4a KS	112
	113	/* Known address families */
	114	struct afswtch {
	115	char *af_name;
	116	short af_af;
	117	int (*af_status)();
	118	int (*af_getaddr)();
59c3b7d8 KS	119	int af_difaddr;
	120	int af_aifaddr;
	121	caddr_t af_ridreq;
	122	caddr_t af_addreq;
62e9bc4a	123	} afs[] = {
59c3b7d8 KS	124	#define C(x) ((caddr_t) &x)
	125	{ "inet", AF_INET, in_status, in_getaddr,
	126	SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
	127	{ "ns", AF_NS, xns_status, xns_getaddr,
	128	SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
	129	{ "iso", AF_ISO, iso_status, iso_getaddr,
	130	SIOCDIFADDR_ISO, SIOCAIFADDR_ISO, C(iso_ridreq), C(iso_addreq) },
	131	{ 0, 0, 0, 0 }
62e9bc4a KS	132	};
	133
	134	struct afswtch afp; /the address family being set or asked about*/
	135
b3eab9f9 SL	136	main(argc, argv)
	137	int argc;
	138	char *argv[];
	139	{
62e9bc4a	140	int af = AF_INET;
59c3b7d8	141	register struct afswtch *rafp;
37d62ab6	142
b3eab9f9	143	if (argc < 2) {
22506e09	144	fprintf(stderr, "usage: ifconfig interface\n%s%s%s%s%s",
f5f09b9d MK	145	"\t[ af [ address [ dest_addr ] ] [ up ] [ down ]",
	146	"[ netmask mask ] ]\n",
	147	"\t[ metric n ]\n",
98f9cb40	148	"\t[ arp \| -arp ]\n",
d3ada0f0	149	"\t[ link0 \| -link0 ] [ link1 \| -link1 ] [ link2 \| -link2 ] \n");
b3eab9f9 SL	150	exit(1);
b3eab9f9 SL	151	}
62e9bc4a	152	argc--, argv++;
63f46c0f	153	strncpy(name, *argv, sizeof(name));
62e9bc4a KS	154	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
	155	argc--, argv++;
	156	if (argc > 0) {
59c3b7d8 KS	157	for (afp = rafp = afs; rafp->af_name; rafp++)
	158	if (strcmp(rafp->af_name, *argv) == 0) {
	159	afp = rafp; argc--; argv++;
62e9bc4a KS	160	break;
62e9bc4a KS	161	}
59c3b7d8 KS	162	rafp = afp;
59c3b7d8 KS	163	af = ifr.ifr_addr.sa_family = rafp->af_af;
62e9bc4a KS	164	}
62e9bc4a KS	165	s = socket(af, SOCK_DGRAM, 0);
b3eab9f9 SL	166	if (s < 0) {
	167	perror("ifconfig: socket");
	168	exit(1);
	169	}
b3eab9f9 SL	170	if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
	171	Perror("ioctl (SIOCGIFFLAGS)");
	172	exit(1);
	173	}
62e9bc4a	174	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
0fd5cf4f	175	flags = ifr.ifr_flags;
f5f09b9d MK	176	if (ioctl(s, SIOCGIFMETRIC, (caddr_t)&ifr) < 0)
	177	perror("ioctl (SIOCGIFMETRIC)");
	178	else
	179	metric = ifr.ifr_metric;
b3eab9f9 SL	180	if (argc == 0) {
	181	status();
	182	exit(0);
	183	}
	184	while (argc > 0) {
	185	register struct cmd *p;
	186
	187	for (p = cmds; p->c_name; p++)
	188	if (strcmp(*argv, p->c_name) == 0)
	189	break;
40a42b7f TF	190	if (p->c_name == 0 && setaddr)
40a42b7f TF	191	p++; /* got src, do dst */
0fd5cf4f MK	192	if (p->c_func) {
	193	if (p->c_parameter == NEXTARG) {
	194	(*p->c_func)(argv[1]);
	195	argc--, argv++;
	196	} else
	197	(p->c_func)(argv, p->c_parameter);
	198	}
b3eab9f9 SL	199	argc--, argv++;
b3eab9f9 SL	200	}
ffdba101 KS	201	if (af == AF_ISO)
ffdba101 KS	202	adjust_nsellength();
62e9bc4a KS	203	if (setipdst && af==AF_NS) {
	204	struct nsip_req rq;
	205	int size = sizeof(rq);
	206
59c3b7d8 KS	207	rq.rq_ns = addreq.ifra_addr;
59c3b7d8 KS	208	rq.rq_ip = addreq.ifra_dstaddr;
62e9bc4a KS	209
	210	if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0)
	211	Perror("Encapsulation Routing");
22b2b267	212	}
22b2b267 KS	213	if (clearaddr) {
	214	int ret;
	215	strncpy(rafp->af_ridreq, name, sizeof ifr.ifr_name);
	216	if ((ret = ioctl(s, rafp->af_difaddr, rafp->af_ridreq)) < 0) {
	217	if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
	218	/* means no previous address for interface */
	219	} else
	220	Perror("ioctl (SIOCDIFADDR)");
	221	}
62e9bc4a	222	}
59c3b7d8 KS	223	if (newaddr) {
	224	strncpy(rafp->af_addreq, name, sizeof ifr.ifr_name);
	225	if (ioctl(s, rafp->af_aifaddr, rafp->af_addreq) < 0)
	226	Perror("ioctl (SIOCAIFADDR)");
0fd5cf4f	227	}
b3eab9f9 SL	228	exit(0);
b3eab9f9 SL	229	}
59c3b7d8 KS	230	#define RIDADDR 0
	231	#define ADDR 1
	232	#define MASK 2
	233	#define DSTADDR 3
b3eab9f9 SL	234
	235	/ARGSUSED/
	236	setifaddr(addr, param)
	237	char *addr;
62e9bc4a	238	short param;
b3eab9f9	239	{
dea973a0 MK	240	/*
	241	* Delay the ioctl to set the interface addr until flags are all set.
	242	* The address interpretation may depend on the flags,
	243	* and the flags may change when the address is set.
a9575a9a	244	*/
dea973a0	245	setaddr++;
b95f7094	246	if (doalias == 0)
22b2b267	247	clearaddr = 1;
59c3b7d8	248	(*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR));
b3eab9f9 SL	249	}
b3eab9f9 SL	250
0fd5cf4f MK	251	setifnetmask(addr)
	252	char *addr;
	253	{
59c3b7d8	254	(*afp->af_getaddr)(addr, MASK);
0fd5cf4f MK	255	}
	256
	257	setifbroadaddr(addr)
	258	char *addr;
	259	{
59c3b7d8	260	(*afp->af_getaddr)(addr, DSTADDR);
0fd5cf4f MK	261	}
0fd5cf4f MK	262
62e9bc4a KS	263	setifipdst(addr)
	264	char *addr;
	265	{
59c3b7d8	266	in_getaddr(addr, DSTADDR);
62e9bc4a	267	setipdst++;
22b2b267 KS	268	clearaddr = 0;
22b2b267 KS	269	newaddr = 0;
62e9bc4a	270	}
22b2b267	271	#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
59c3b7d8 KS	272	/ARGSUSED/
	273	notealias(addr, param)
	274	char *addr;
	275	{
22b2b267 KS	276	if (setaddr && doalias == 0 && param < 0)
	277	bcopy((caddr_t)rqtosa(af_addreq),
	278	(caddr_t)rqtosa(af_ridreq),
	279	rqtosa(af_addreq)->sa_len);
59c3b7d8	280	doalias = param;
22b2b267 KS	281	if (param < 0) {
22b2b267 KS	282	clearaddr = 1;
59c3b7d8	283	newaddr = 0;
22b2b267 KS	284	} else
22b2b267 KS	285	clearaddr = 0;
59c3b7d8 KS	286	}
59c3b7d8 KS	287
22506e09 KS	288	/ARGSUSED/
	289	notrailers(vname, value)
	290	char *vname;
	291	int value;
	292	{
	293	printf("Note: trailers are no longer sent, but always received\n");
	294	}
	295
40a42b7f TF	296	/ARGSUSED/
	297	setifdstaddr(addr, param)
	298	char *addr;
	299	int param;
	300	{
59c3b7d8	301	(*afp->af_getaddr)(addr, DSTADDR);
40a42b7f TF	302	}
40a42b7f TF	303
2c4ef00e SL	304	setifflags(vname, value)
2c4ef00e SL	305	char *vname;
62e9bc4a	306	short value;
b3eab9f9	307	{
62e9bc4a KS	308	if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
	309	Perror("ioctl (SIOCGIFFLAGS)");
	310	exit(1);
	311	}
	312	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
	313	flags = ifr.ifr_flags;
b3eab9f9 SL	314
	315	if (value < 0) {
	316	value = -value;
0fd5cf4f	317	flags &= ~value;
b3eab9f9	318	} else
0fd5cf4f	319	flags \|= value;
0fd5cf4f	320	ifr.ifr_flags = flags;
b3eab9f9	321	if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0)
2c4ef00e	322	Perror(vname);
b3eab9f9 SL	323	}
b3eab9f9 SL	324
f5f09b9d MK	325	setifmetric(val)
	326	char *val;
	327	{
	328	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
	329	ifr.ifr_metric = atoi(val);
	330	if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
	331	perror("ioctl (set metric)");
	332	}
	333
59c3b7d8 KS	334	setsnpaoffset(val)
	335	char *val;
	336	{
	337	iso_addreq.ifra_snpaoffset = atoi(val);
	338	}
	339
f5f09b9d	340	#define IFFBITS \
98f9cb40	341	"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\
22506e09	342	\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2\20MULTICAST"
f5f09b9d	343
62e9bc4a KS	344	/*
	345	* Print the status of the interface. If an address family was
	346	* specified, show it and it only; otherwise, show them all.
	347	*/
b3eab9f9	348	status()
62e9bc4a KS	349	{
	350	register struct afswtch *p = afp;
	351	short af = ifr.ifr_addr.sa_family;
	352
f5f09b9d MK	353	printf("%s: ", name);
	354	printb("flags", flags, IFFBITS);
	355	if (metric)
	356	printf(" metric %d", metric);
	357	putchar('\n');
62e9bc4a	358	if ((p = afp) != NULL) {
b14b214d MK	359	(*p->af_status)(1);
b14b214d MK	360	} else for (p = afs; p->af_name; p++) {
62e9bc4a	361	ifr.ifr_addr.sa_family = p->af_af;
b14b214d	362	(*p->af_status)(0);
62e9bc4a KS	363	}
	364	}
	365
b14b214d MK	366	in_status(force)
b14b214d MK	367	int force;
b3eab9f9 SL	368	{
b3eab9f9 SL	369	struct sockaddr_in *sin;
62e9bc4a	370	char *inet_ntoa();
b3eab9f9	371
37d62ab6	372	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
0fd5cf4f	373	if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) {
b14b214d MK	374	if (errno == EADDRNOTAVAIL \|\| errno == EAFNOSUPPORT) {
	375	if (!force)
	376	return;
0fd5cf4f	377	bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
b14b214d MK	378	} else
b14b214d MK	379	perror("ioctl (SIOCGIFADDR)");
0fd5cf4f	380	}
b3eab9f9	381	sin = (struct sockaddr_in *)&ifr.ifr_addr;
5868d993	382	printf("\tinet %s ", inet_ntoa(sin->sin_addr));
b14b214d MK	383	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
	384	if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) {
	385	if (errno != EADDRNOTAVAIL)
	386	perror("ioctl (SIOCGIFNETMASK)");
	387	bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
	388	} else
	389	netmask.sin_addr =
	390	((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr;
40a42b7f	391	if (flags & IFF_POINTOPOINT) {
0fd5cf4f MK	392	if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) {
	393	if (errno == EADDRNOTAVAIL)
	394	bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
	395	else
b14b214d	396	perror("ioctl (SIOCGIFDSTADDR)");
0fd5cf4f	397	}
62e9bc4a	398	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
40a42b7f TF	399	sin = (struct sockaddr_in *)&ifr.ifr_dstaddr;
	400	printf("--> %s ", inet_ntoa(sin->sin_addr));
	401	}
0fd5cf4f	402	printf("netmask %x ", ntohl(netmask.sin_addr.s_addr));
0fd5cf4f	403	if (flags & IFF_BROADCAST) {
0fd5cf4f MK	404	if (ioctl(s, SIOCGIFBRDADDR, (caddr_t)&ifr) < 0) {
0fd5cf4f MK	405	if (errno == EADDRNOTAVAIL)
b14b214d MK	406	bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
	407	else
	408	perror("ioctl (SIOCGIFADDR)");
0fd5cf4f	409	}
62e9bc4a	410	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
0fd5cf4f	411	sin = (struct sockaddr_in *)&ifr.ifr_addr;
b14b214d MK	412	if (sin->sin_addr.s_addr != 0)
b14b214d MK	413	printf("broadcast %s", inet_ntoa(sin->sin_addr));
0fd5cf4f	414	}
f5f09b9d	415	putchar('\n');
b3eab9f9 SL	416	}
b3eab9f9 SL	417
62e9bc4a	418
b14b214d MK	419	xns_status(force)
b14b214d MK	420	int force;
62e9bc4a KS	421	{
62e9bc4a KS	422	struct sockaddr_ns *sns;
62e9bc4a KS	423
	424	close(s);
	425	s = socket(AF_NS, SOCK_DGRAM, 0);
	426	if (s < 0) {
cd2e8e25	427	if (errno == EPROTONOSUPPORT)
63f46c0f	428	return;
62e9bc4a KS	429	perror("ifconfig: socket");
	430	exit(1);
	431	}
	432	if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) {
b14b214d MK	433	if (errno == EADDRNOTAVAIL \|\| errno == EAFNOSUPPORT) {
	434	if (!force)
	435	return;
	436	bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
	437	} else
	438	perror("ioctl (SIOCGIFADDR)");
62e9bc4a KS	439	}
	440	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
	441	sns = (struct sockaddr_ns *)&ifr.ifr_addr;
f5f09b9d	442	printf("\tns %s ", ns_ntoa(sns->sns_addr));
90a22cbc KS	443	if (flags & IFF_POINTOPOINT) { /* by W. Nesheim@Cornell */
	444	if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) {
	445	if (errno == EADDRNOTAVAIL)
	446	bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
	447	else
	448	Perror("ioctl (SIOCGIFDSTADDR)");
	449	}
	450	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
	451	sns = (struct sockaddr_ns *)&ifr.ifr_dstaddr;
	452	printf("--> %s ", ns_ntoa(sns->sns_addr));
	453	}
62e9bc4a KS	454	putchar('\n');
	455	}
	456
59c3b7d8 KS	457	iso_status(force)
	458	int force;
	459	{
	460	struct sockaddr_iso *siso;
	461	struct iso_ifreq ifr;
	462
	463	close(s);
	464	s = socket(AF_ISO, SOCK_DGRAM, 0);
	465	if (s < 0) {
	466	if (errno == EPROTONOSUPPORT)
	467	return;
	468	perror("ifconfig: socket");
	469	exit(1);
	470	}
42f9d80e KS	471	bzero((caddr_t)&ifr, sizeof(ifr));
	472	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
	473	if (ioctl(s, SIOCGIFADDR_ISO, (caddr_t)&ifr) < 0) {
59c3b7d8 KS	474	if (errno == EADDRNOTAVAIL \|\| errno == EAFNOSUPPORT) {
	475	if (!force)
	476	return;
	477	bzero((char *)&ifr.ifr_Addr, sizeof(ifr.ifr_Addr));
42f9d80e KS	478	} else {
	479	perror("ioctl (SIOCGIFADDR_ISO)");
	480	exit(1);
	481	}
59c3b7d8 KS	482	}
	483	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
	484	siso = &ifr.ifr_Addr;
42f9d80e KS	485	printf("\tiso %s ", iso_ntoa(&siso->siso_addr));
42f9d80e KS	486	if (ioctl(s, SIOCGIFNETMASK_ISO, (caddr_t)&ifr) < 0) {
59c3b7d8	487	if (errno != EADDRNOTAVAIL)
42f9d80e	488	perror("ioctl (SIOCGIFNETMASK_ISO)");
59c3b7d8	489	} else {
42f9d80e	490	printf(" netmask %s ", iso_ntoa(&siso->siso_addr));
59c3b7d8 KS	491	}
59c3b7d8 KS	492	if (flags & IFF_POINTOPOINT) {
42f9d80e	493	if (ioctl(s, SIOCGIFDSTADDR_ISO, (caddr_t)&ifr) < 0) {
59c3b7d8 KS	494	if (errno == EADDRNOTAVAIL)
	495	bzero((char *)&ifr.ifr_Addr, sizeof(ifr.ifr_Addr));
	496	else
42f9d80e	497	Perror("ioctl (SIOCGIFDSTADDR_ISO)");
59c3b7d8 KS	498	}
	499	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
	500	siso = &ifr.ifr_Addr;
42f9d80e	501	printf("--> %s ", iso_ntoa(&siso->siso_addr));
59c3b7d8 KS	502	}
	503	putchar('\n');
	504	}
	505
b3eab9f9 SL	506	Perror(cmd)
	507	char *cmd;
	508	{
	509	extern int errno;
	510
	511	fprintf(stderr, "ifconfig: ");
	512	switch (errno) {
	513
	514	case ENXIO:
62e9bc4a	515	fprintf(stderr, "%s: no such interface\n", cmd);
b3eab9f9 SL	516	break;
	517
	518	case EPERM:
9f1b5d96	519	fprintf(stderr, "%s: permission denied\n", cmd);
b3eab9f9 SL	520	break;
	521
	522	default:
	523	perror(cmd);
	524	}
	525	exit(1);
	526	}
	527
	528	struct in_addr inet_makeaddr();
	529
59c3b7d8 KS	530	#define SIN(x) ((struct sockaddr_in *) &(x))
	531	struct sockaddr_in *sintab[] = {
	532	SIN(ridreq.ifr_addr), SIN(addreq.ifra_addr),
	533	SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)};
	534
	535	in_getaddr(s, which)
b3eab9f9	536	char *s;
b3eab9f9	537	{
59c3b7d8	538	register struct sockaddr_in *sin = sintab[which];
b3eab9f9 SL	539	struct hostent *hp;
	540	struct netent *np;
	541	int val;
	542
84ce95b5 KS	543	sin->sin_len = sizeof(*sin);
84ce95b5 KS	544	if (which != MASK)
59c3b7d8	545	sin->sin_family = AF_INET;
84ce95b5 KS	546
84ce95b5 KS	547	if ((val = inet_addr(s)) != -1)
0fd5cf4f	548	sin->sin_addr.s_addr = val;
84ce95b5	549	else if (hp = gethostbyname(s))
b3eab9f9	550	bcopy(hp->h_addr, (char *)&sin->sin_addr, hp->h_length);
84ce95b5	551	else if (np = getnetbyname(s))
b3eab9f9	552	sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
84ce95b5 KS	553	else {
	554	fprintf(stderr, "%s: bad value\n", s);
	555	exit(1);
b3eab9f9	556	}
b3eab9f9 SL	557	}
	558
	559	/*
	560	* Print a value a la the %b format of the kernel's printf
	561	*/
	562	printb(s, v, bits)
	563	char *s;
	564	register char *bits;
	565	register unsigned short v;
	566	{
	567	register int i, any = 0;
	568	register char c;
	569
	570	if (bits && *bits == 8)
	571	printf("%s=%o", s, v);
	572	else
	573	printf("%s=%x", s, v);
	574	bits++;
	575	if (bits) {
	576	putchar('<');
	577	while (i = *bits++) {
	578	if (v & (1 << (i-1))) {
	579	if (any)
	580	putchar(',');
	581	any = 1;
	582	for (; (c = *bits) > 32; bits++)
	583	putchar(c);
	584	} else
	585	for (; *bits > 32; bits++)
	586	;
	587	}
	588	putchar('>');
	589	}
	590	}
62e9bc4a	591
59c3b7d8 KS	592	#define SNS(x) ((struct sockaddr_ns *) &(x))
	593	struct sockaddr_ns *snstab[] = {
	594	SNS(ridreq.ifr_addr), SNS(addreq.ifra_addr),
	595	SNS(addreq.ifra_mask), SNS(addreq.ifra_broadaddr)};
	596
	597	xns_getaddr(addr, which)
62e9bc4a	598	char *addr;
62e9bc4a	599	{
59c3b7d8	600	struct sockaddr_ns *sns = snstab[which];
90a22cbc	601	struct ns_addr ns_addr();
59c3b7d8	602
62e9bc4a	603	sns->sns_family = AF_NS;
ac96969a	604	sns->sns_len = sizeof(*sns);
90a22cbc	605	sns->sns_addr = ns_addr(addr);
59c3b7d8 KS	606	if (which == MASK)
	607	printf("Attempt to set XNS netmask will be ineffectual\n");
	608	}
	609
	610	#define SISO(x) ((struct sockaddr_iso *) &(x))
	611	struct sockaddr_iso *sisotab[] = {
	612	SISO(iso_ridreq.ifr_Addr), SISO(iso_addreq.ifra_addr),
	613	SISO(iso_addreq.ifra_mask), SISO(iso_addreq.ifra_dstaddr)};
	614
	615	iso_getaddr(addr, which)
	616	char *addr;
	617	{
ffdba101	618	register struct sockaddr_iso *siso = sisotab[which];
59c3b7d8 KS	619	struct iso_addr *iso_addr();
59c3b7d8 KS	620	siso->siso_addr = *iso_addr(addr);
ffdba101	621
59c3b7d8	622	if (which == MASK) {
84ce95b5	623	siso->siso_len = TSEL(siso) - (caddr_t)(siso);
59c3b7d8 KS	624	siso->siso_nlen = 0;
59c3b7d8 KS	625	} else {
ffdba101 KS	626	siso->siso_len = sizeof(*siso);
ffdba101 KS	627	siso->siso_family = AF_ISO;
59c3b7d8	628	}
62e9bc4a	629	}
42f9d80e KS	630
	631	setnsellength(val)
	632	char *val;
	633	{
ffdba101 KS	634	nsellength = atoi(val);
	635	if (nsellength < 0) {
	636	fprintf(stderr, "Negative NSEL length is absurd\n");
	637	exit (1);
	638	}
42f9d80e KS	639	if (afp == 0 \|\| afp->af_af != AF_ISO) {
	640	fprintf(stderr, "Setting NSEL length valid only for iso\n");
	641	exit (1);
	642	}
ffdba101 KS	643	}
	644
	645	fixnsel(s)
	646	register struct sockaddr_iso *s;
	647	{
	648	if (s->siso_family == 0)
	649	return;
ffdba101 KS	650	s->siso_tlen = nsellength;
	651	}
	652
	653	adjust_nsellength()
	654	{
	655	fixnsel(sisotab[RIDADDR]);
	656	fixnsel(sisotab[ADDR]);
	657	fixnsel(sisotab[DSTADDR]);
42f9d80e	658	}