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1.1 root 1: #ifndef lint
2: static char sccsid[] = "@(#)if.c 4.4 82/11/14";
3: #endif
4:
5: #include <sys/types.h>
6: #include <sys/socket.h>
7:
8: #include <net/if.h>
9: #include <netinet/in.h>
10:
11: #include <stdio.h>
12:
13: extern int kmem;
14: extern int tflag;
15: extern int nflag;
16: extern char *routename();
17:
18: /*
19: * Print a description of the network interfaces.
20: */
21: intpr(interval, ifnetaddr)
22: int interval;
23: off_t ifnetaddr;
24: {
25: struct ifnet ifnet;
26: char name[16];
27:
28: if (ifnetaddr == 0) {
29: printf("ifnet: symbol not defined\n");
30: return;
31: }
32: if (interval) {
33: sidewaysintpr(interval, ifnetaddr);
34: return;
35: }
36: klseek(kmem, ifnetaddr, 0);
37: read(kmem, &ifnetaddr, sizeof ifnetaddr);
38: printf("%-5.5s %-5.5s %-10.10s %-12.12s %-7.7s %-5.5s %-7.7s %-5.5s",
39: "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs",
40: "Opkts", "Oerrs");
41: printf(" %-6.6s", "Collis");
42: if (tflag)
43: printf(" %-6.6s", "Timer");
44: putchar('\n');
45: while (ifnetaddr) {
46: struct sockaddr_in *sin;
47: register char *cp;
48: char *index();
49: struct in_addr in, inet_makeaddr();
50:
51: klseek(kmem, ifnetaddr, 0);
52: read(kmem, &ifnet, sizeof ifnet);
53: klseek(kmem, (int)ifnet.if_name, 0);
54: read(kmem, name, 16);
55: name[15] = '\0';
56: cp = index(name, '\0');
57: *cp++ = ifnet.if_unit + '0';
58: if ((ifnet.if_flags&IFF_UP) == 0)
59: *cp++ = '*';
60: *cp = '\0';
61: printf("%-5.5s %-5d ", name, ifnet.if_mtu);
62: sin = (struct sockaddr_in *)&ifnet.if_addr;
63: in = inet_makeaddr(ifnet.if_net, INADDR_ANY);
64: printf("%-10.10s ", routename(in));
65: printf("%-12.12s %-7d %-5d %-7d %-5d %-6d",
66: routename(sin->sin_addr),
67: ifnet.if_ipackets, ifnet.if_ierrors,
68: ifnet.if_opackets, ifnet.if_oerrors,
69: ifnet.if_collisions);
70: if (tflag)
71: printf(" %-6d", ifnet.if_timer);
72: putchar('\n');
73: ifnetaddr = (off_t) ifnet.if_next;
74: }
75: }
76:
77: #define MAXIF 10
78: struct iftot {
79: char ift_name[16]; /* interface name */
80: int ift_ip; /* input packets */
81: int ift_ie; /* input errors */
82: int ift_op; /* output packets */
83: int ift_oe; /* output errors */
84: int ift_co; /* collisions */
85: } iftot[MAXIF];
86:
87: /*
88: * Print a running summary of interface statistics.
89: * Repeat display every interval seconds, showing
90: * statistics collected over that interval. First
91: * line printed at top of screen is always cumulative.
92: */
93: sidewaysintpr(interval, off)
94: int interval;
95: off_t off;
96: {
97: struct ifnet ifnet;
98: off_t firstifnet;
99: extern char _sobuf[];
100: register struct iftot *ip, *total;
101: register int line;
102: struct iftot *lastif, *sum, *interesting;
103: int maxtraffic;
104:
105: setbuf(stdout, _sobuf);
106: klseek(kmem, off, 0);
107: read(kmem, &firstifnet, sizeof (off_t));
108: lastif = iftot;
109: sum = iftot + MAXIF - 1;
110: total = sum - 1;
111: for (off = firstifnet, ip = iftot; off;) {
112: char *cp;
113:
114: klseek(kmem, off, 0);
115: read(kmem, &ifnet, sizeof ifnet);
116: klseek(kmem, (int)ifnet.if_name, 0);
117: ip->ift_name[0] = '(';
118: read(kmem, ip->ift_name + 1, 15);
119: ip->ift_name[15] = '\0';
120: cp = index(ip->ift_name, '\0');
121: sprintf(cp, "%d)", ifnet.if_unit);
122: ip++;
123: if (ip >= iftot + MAXIF - 2)
124: break;
125: off = (off_t) ifnet.if_next;
126: }
127: lastif = ip;
128: interesting = iftot;
129: banner:
130: printf(" input %-6.6s output ", interesting->ift_name);
131: if (lastif - iftot > 0)
132: printf(" input (Total) output ");
133: for (ip = iftot; ip < iftot + MAXIF; ip++) {
134: ip->ift_ip = 0;
135: ip->ift_ie = 0;
136: ip->ift_op = 0;
137: ip->ift_oe = 0;
138: ip->ift_co = 0;
139: }
140: putchar('\n');
141: printf("%-7.7s %-5.5s %-7.7s %-5.5s %-5.5s ",
142: "packets", "errs", "packets", "errs", "colls");
143: if (lastif - iftot > 0)
144: printf("%-7.7s %-5.5s %-7.7s %-5.5s %-5.5s ",
145: "packets", "errs", "packets", "errs", "colls");
146: putchar('\n');
147: fflush(stdout);
148: line = 0;
149: loop:
150: sum->ift_ip = 0;
151: sum->ift_ie = 0;
152: sum->ift_op = 0;
153: sum->ift_oe = 0;
154: sum->ift_co = 0;
155: for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) {
156: klseek(kmem, off, 0);
157: read(kmem, &ifnet, sizeof ifnet);
158: if (ip == interesting)
159: printf("%-7d %-5d %-7d %-5d %-5d ",
160: ifnet.if_ipackets - ip->ift_ip,
161: ifnet.if_ierrors - ip->ift_ie,
162: ifnet.if_opackets - ip->ift_op,
163: ifnet.if_oerrors - ip->ift_oe,
164: ifnet.if_collisions - ip->ift_co);
165: ip->ift_ip = ifnet.if_ipackets;
166: ip->ift_ie = ifnet.if_ierrors;
167: ip->ift_op = ifnet.if_opackets;
168: ip->ift_oe = ifnet.if_oerrors;
169: ip->ift_co = ifnet.if_collisions;
170: sum->ift_ip += ip->ift_ip;
171: sum->ift_ie += ip->ift_ie;
172: sum->ift_op += ip->ift_op;
173: sum->ift_oe += ip->ift_oe;
174: sum->ift_co += ip->ift_co;
175: off = (off_t) ifnet.if_next;
176: }
177: if (lastif - iftot > 0)
178: printf("%-7d %-5d %-7d %-5d %-5d\n",
179: sum->ift_ip - total->ift_ip,
180: sum->ift_ie - total->ift_ie,
181: sum->ift_op - total->ift_op,
182: sum->ift_oe - total->ift_oe,
183: sum->ift_co - total->ift_co);
184: *total = *sum;
185: fflush(stdout);
186: line++;
187: if (interval)
188: sleep(interval);
189: if (line == 21)
190: goto banner;
191: goto loop;
192: /*NOTREACHED*/
193: }
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