date and time created 82/04/02 10:29:02 by wnj

SCCS-vsn: sbin/route/route.c 4.1

diff --git a/usr/src/sbin/route/route.c b/usr/src/sbin/route/route.c
new file mode 100644 (file)
index 0000000..39c1f06
--- /dev/null
+++ b/usr/src/sbin/route/route.c
@@ -0,0 +1,104 @@
+#ifndef lint
+static char sccsid[] = "@(#)route.c    4.1 82/04/02";
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/route.h>
+#include <net/in.h>
+#include <errno.h>
+#include <ctype.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) {
+               printf("usage: %s destination gateway\n", argv[0]);
+               return;
+       }
+       cmd = *argv++;
+       getaddr(*argv++, &route.rt_dst);
+       getaddr(*argv, &route.rt_gateway);
+       sin = (struct sockaddr_in *)&route.rt_dst;
+       route.rt_flags = RTF_UP;
+       if (sin->sin_addr.s_host || sin->sin_addr.s_imp)
+               route.rt_flags |= RTF_HOST;
+       printf("%s %x: gateway %x\n", cmd, sin->sin_addr,
+               ((struct sockaddr_in *)&route.rt_gateway)->sin_addr);
+       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;
+{
+       sin->sin_family = AF_INET;
+       if ((sin->sin_addr.s_addr = rhost(&s)) != -1)
+               return;
+       if (!isdigit(*s)) {
+               fprintf(stderr, "%s: unknown host\n", s);
+               exit(1);
+       }
+       sin->sin_addr.s_addr = atoi(s);
+       if (sin->sin_addr.s_addr == -1) {
+               fprintf(stderr, "%s: bad value\n", s);
+               exit(1);
+       }
+}