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33 * @(#)netcmds.c 8.1 (Berkeley) 6/6/93
34 * $FreeBSD: src/usr.bin/systat/netcmds.c,v 1.9 1999/08/28 01:06:04 peter Exp $
35 * $DragonFly: src/usr.bin/systat/netcmds.c,v 1.3 2003/10/04 20:36:51 hmp Exp $
39 * Common network command support routines.
41 #include <sys/param.h>
42 #include <sys/queue.h>
43 #include <sys/socket.h>
44 #include <sys/socketvar.h>
45 #include <sys/protosw.h>
47 #include <net/route.h>
48 #include <netinet/in.h>
49 #include <netinet/in_systm.h>
50 #include <netinet/ip.h>
51 #include <netinet/in_pcb.h>
52 #include <arpa/inet.h>
61 #define streq(a,b) (strcmp(a,b)==0)
68 int nports, nhosts, protos;
70 static void changeitems(char *, int);
71 static int selectproto(char *);
72 static void showprotos(void);
73 static int selectport(long, int);
74 static void showports(void);
75 static int selecthost(struct in_addr *, int);
76 static void showhosts(void);
79 netcmd(char *cmd, char *args)
82 if (prefix(cmd, "proto")) {
86 addstr("which proto?");
87 } else if (!selectproto(args)) {
88 error("%s: Unknown protocol.", args);
92 if (prefix(cmd, "ignore") || prefix(cmd, "display")) {
93 changeitems(args, prefix(cmd, "display"));
96 if (prefix(cmd, "reset")) {
102 if (prefix(cmd, "show")) {
103 move(CMDLINE, 0); clrtoeol();
110 if (prefix(args, "protos"))
112 else if (prefix(args, "hosts"))
114 else if (prefix(args, "ports"))
117 addstr("show what?");
125 changeitems(char *args, int onoff)
133 cp = index(args, '\n');
137 for (cp = args; *cp && isspace(*cp); cp++)
140 for (; *cp && !isspace(*cp); cp++)
146 sp = getservbyname(args,
147 protos == TCP ? "tcp" : protos == UDP ? "udp" : 0);
149 selectport(sp->s_port, onoff);
152 hp = gethostbyname(args);
154 in.s_addr = inet_addr(args);
155 if (in.s_addr == -1) {
156 error("%s: unknown host or port", args);
160 in = *(struct in_addr *)hp->h_addr;
161 selecthost(&in, onoff);
166 selectproto(char *proto)
169 if (proto == 0 || streq(proto, "all"))
171 else if (streq(proto, "tcp"))
173 else if (streq(proto, "udp"))
185 if ((protos&TCP) == 0)
188 if ((protos&UDP) == 0)
193 static struct pitem {
199 selectport(long port, int onoff)
201 register struct pitem *p;
206 free((char *)ports), ports = 0;
210 for (p = ports; p < ports+nports; p++)
211 if (p->port == port) {
216 ports = (struct pitem *)malloc(sizeof (*p));
218 ports = (struct pitem *)realloc(ports, (nports+1)*sizeof (*p));
219 p = &ports[nports++];
226 checkport(register struct inpcb *inp)
228 register struct pitem *p;
231 for (p = ports; p < ports+nports; p++)
232 if (p->port == inp->inp_lport || p->port == inp->inp_fport)
240 register struct pitem *p;
243 for (p = ports; p < ports+nports; p++) {
244 sp = getservbyport(p->port,
245 protos == TCP|UDP ? 0 : protos == TCP ? "tcp" : "udp");
249 printw("%s ", sp->s_name);
251 printw("%d ", p->port);
256 selecthost(struct in_addr *in, int onoff)
258 register struct hitem *p;
263 free((char *)hosts), hosts = 0;
267 for (p = hosts; p < hosts+nhosts; p++)
268 if (p->addr.s_addr == in->s_addr) {
273 hosts = (struct hitem *)malloc(sizeof (*p));
275 hosts = (struct hitem *)realloc(hosts, (nhosts+1)*sizeof (*p));
276 p = &hosts[nhosts++];
283 checkhost(register struct inpcb *inp)
285 register struct hitem *p;
288 for (p = hosts; p < hosts+nhosts; p++)
289 if (p->addr.s_addr == inp->inp_laddr.s_addr ||
290 p->addr.s_addr == inp->inp_faddr.s_addr)
298 register struct hitem *p;
301 for (p = hosts; p < hosts+nhosts; p++) {
302 hp = gethostbyaddr((char *)&p->addr, sizeof (p->addr), AF_INET);
305 printw("%s ", hp ? hp->h_name : (char *)inet_ntoa(p->addr));