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

#ifndef lint
static char sccsid[] = "@(#)route.c	4.4 82/11/14";
#endif

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

#include <net/route.h>
#include <netinet/in.h>

#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <netdb.h>

struct	rtentry route;
int	options;
int	s;
struct	sockaddr_in sin = { AF_INET };

main(argc, argv)
	int argc;
	char *argv[];
{

	if (argc < 2)
		printf("usage: route [ cmd ] [ args ]\n"), exit(1);
	s = socket(SOCK_RAW, 0, 0, options);
	if (s < 0) {
		perror("socket");
		exit(1);
	}
	argc--, argv++;
	if (strcmp(*argv, "add") == 0)
		newroute(argc, argv);
	else if (strcmp(*argv, "delete") == 0)
		newroute(argc, argv);
	else if (strcmp(*argv, "change") == 0)
		changeroute(argc-1, argv+1);
	else
		printf("%s: huh?\n", *argv);
}

newroute(argc, argv)
	int argc;
	char *argv[];
{
	struct sockaddr_in *sin;
	char *cmd;

	if (argc < 3 || argc > 4) {
		printf("usage: %s destination gateway [ metric ]\n", argv[0]);
		return;
	}
	cmd = argv[0];
	getaddr(argv[1], &route.rt_dst);
	getaddr(argv[2], &route.rt_gateway);
	sin = (struct sockaddr_in *)&route.rt_dst;
	route.rt_flags = RTF_UP;
	if (inet_lnaof(sin->sin_addr) != 0)
		route.rt_flags |= RTF_HOST;
	if (argc > 3 && atoi(argv[3]) > 0)
		route.rt_flags |= RTF_GATEWAY;
	printf("%s %x: gateway %x, flags %x\n", cmd, sin->sin_addr,
		((struct sockaddr_in *)&route.rt_gateway)->sin_addr,
		route.rt_flags);
	if (ioctl(s, *cmd == 'a' ? SIOCADDRT : SIOCDELRT, (caddr_t)&route))
		error(cmd);
}

changeroute(argc, argv)
	int argc;
	char *argv[];
{
	printf("not supported\n");
}

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

	if (errno == ESRCH)
		fprintf(stderr, "not in table\n");
	else if (errno == EBUSY)
		fprintf(stderr, "entry in use\n");
	else if (errno == ENOBUFS)
		fprintf(stderr, "routing table overflow\n");
	else
		perror(cmd);
}

getaddr(s, sin)
	char *s;
	struct sockaddr_in *sin;
{
	struct hostent *hp;

	hp = gethostbyname(s);
	if (hp == 0) {
		sin->sin_addr.s_addr = inet_addr(s);
		if (sin->sin_addr.s_addr == -1) {
			fprintf(stderr, "%s: bad value\n", s);
			exit(1);
		}
		sin->sin_family = AF_INET;
		return;
	}
	sin->sin_family = hp->h_addrtype;
	bcopy(hp->h_addr, &sin->sin_addr, hp->h_length);
}
Commit	Line	Data
4bec325f	1	#ifndef lint
94a2d2a7	2	static char sccsid[] = "@(#)route.c 4.4 82/11/14";
4bec325f BJ	3	#endif
4bec325f BJ	4
4bec325f BJ	5	#include <sys/types.h>
	6	#include <sys/socket.h>
	7	#include <sys/ioctl.h>
94a2d2a7	8
4bec325f	9	#include <net/route.h>
94a2d2a7 SL	10	#include <netinet/in.h>
	11
	12	#include <stdio.h>
4bec325f BJ	13	#include <errno.h>
4bec325f BJ	14	#include <ctype.h>
accbc2e3	15	#include <netdb.h>
4bec325f BJ	16
	17	struct rtentry route;
	18	int options;
	19	int s;
	20	struct sockaddr_in sin = { AF_INET };
	21
	22	main(argc, argv)
	23	int argc;
	24	char *argv[];
	25	{
	26
	27	if (argc < 2)
	28	printf("usage: route [ cmd ] [ args ]\n"), exit(1);
	29	s = socket(SOCK_RAW, 0, 0, options);
	30	if (s < 0) {
	31	perror("socket");
	32	exit(1);
	33	}
	34	argc--, argv++;
	35	if (strcmp(*argv, "add") == 0)
	36	newroute(argc, argv);
	37	else if (strcmp(*argv, "delete") == 0)
	38	newroute(argc, argv);
	39	else if (strcmp(*argv, "change") == 0)
	40	changeroute(argc-1, argv+1);
	41	else
	42	printf("%s: huh?\n", *argv);
	43	}
	44
	45	newroute(argc, argv)
	46	int argc;
	47	char *argv[];
	48	{
	49	struct sockaddr_in *sin;
	50	char *cmd;
	51
183ef13b SL	52	if (argc < 3 \|\| argc > 4) {
183ef13b SL	53	printf("usage: %s destination gateway [ metric ]\n", argv[0]);
4bec325f BJ	54	return;
4bec325f BJ	55	}
183ef13b SL	56	cmd = argv[0];
	57	getaddr(argv[1], &route.rt_dst);
	58	getaddr(argv[2], &route.rt_gateway);
4bec325f BJ	59	sin = (struct sockaddr_in *)&route.rt_dst;
4bec325f BJ	60	route.rt_flags = RTF_UP;
accbc2e3	61	if (inet_lnaof(sin->sin_addr) != 0)
4bec325f	62	route.rt_flags \|= RTF_HOST;
183ef13b SL	63	if (argc > 3 && atoi(argv[3]) > 0)
	64	route.rt_flags \|= RTF_GATEWAY;
	65	printf("%s %x: gateway %x, flags %x\n", cmd, sin->sin_addr,
	66	((struct sockaddr_in *)&route.rt_gateway)->sin_addr,
	67	route.rt_flags);
4bec325f BJ	68	if (ioctl(s, *cmd == 'a' ? SIOCADDRT : SIOCDELRT, (caddr_t)&route))
	69	error(cmd);
	70	}
	71
	72	changeroute(argc, argv)
	73	int argc;
	74	char *argv[];
	75	{
	76	printf("not supported\n");
	77	}
	78
	79	error(cmd)
	80	char *cmd;
	81	{
	82	extern int errno;
	83
	84	if (errno == ESRCH)
	85	fprintf(stderr, "not in table\n");
	86	else if (errno == EBUSY)
	87	fprintf(stderr, "entry in use\n");
	88	else if (errno == ENOBUFS)
	89	fprintf(stderr, "routing table overflow\n");
	90	else
	91	perror(cmd);
	92	}
	93
	94	getaddr(s, sin)
	95	char *s;
	96	struct sockaddr_in *sin;
	97	{
accbc2e3 SL	98	struct hostent *hp;
	99
	100	hp = gethostbyname(s);
	101	if (hp == 0) {
	102	sin->sin_addr.s_addr = inet_addr(s);
	103	if (sin->sin_addr.s_addr == -1) {
	104	fprintf(stderr, "%s: bad value\n", s);
	105	exit(1);
	106	}
	107	sin->sin_family = AF_INET;
4bec325f	108	return;
4bec325f	109	}
accbc2e3 SL	110	sin->sin_family = hp->h_addrtype;
accbc2e3 SL	111	bcopy(hp->h_addr, &sin->sin_addr, hp->h_length);
183ef13b	112	}