1: /*
   2:  * Copyright (c) 1983 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #if defined(DO_SCCS) && !defined(lint)
   8: static char sccsid[] = "@(#)if.c	5.3 (Berkeley) 4/23/86";
   9: #endif
  10: 
  11: #include <sys/types.h>
  12: #include <sys/socket.h>
  13: 
  14: #include <net/if.h>
  15: #include <netdb.h>
  16: #include <netinet/in.h>
  17: #include <netinet/in_var.h>
  18: #include <netns/ns.h>
  19: 
  20: #include <stdio.h>
  21: #include "net.h"
  22: 
  23: extern  int kmem;
  24: extern  int tflag;
  25: extern  int nflag;
  26: extern  char *interface;
  27: extern  int unit;
  28: extern  char *routename(), *netname();
  29: 
  30: /*
  31:  * Print a description of the network interfaces.
  32:  */
  33: intpr(interval, ifnetaddr)
  34:     int interval;
  35:     off_t ifnetaddr;
  36: {
  37:     struct ifnet ifnet;
  38:     union {
  39:         struct ifaddr ifa;
  40:         struct in_ifaddr in;
  41:     } ifaddr;
  42:     off_t ifaddraddr;
  43:     char name[16];
  44: 
  45:     if (ifnetaddr == 0) {
  46:         printf("ifnet: symbol not defined\n");
  47:         return;
  48:     }
  49: #ifndef CRASH
  50:     if (interval) {
  51:         sidewaysintpr(interval, ifnetaddr);
  52:         return;
  53:     }
  54: #endif	!CRASH
  55:     klseek(kmem, (off_t)ifnetaddr, 0);
  56: #if pdp11
  57:     { unsigned x;
  58:     read(kmem, &x, sizeof x);
  59:     ifnetaddr = (long)x;
  60:     }
  61: #else
  62:     read(kmem, &ifnetaddr, sizeof ifnetaddr);
  63: #endif
  64:     printf("%-5.5s %-5.5s %-10.10s  %-12.12s %-7.7s %-5.5s %-7.7s %-5.5s",
  65:         "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs",
  66:         "Opkts", "Oerrs");
  67:     printf(" %-6.6s", "Collis");
  68:     if (tflag)
  69:         printf(" %-6.6s", "Timer");
  70:     putchar('\n');
  71:     ifaddraddr = 0;
  72:     while (ifnetaddr || ifaddraddr) {
  73:         struct sockaddr_in *sin;
  74:         register char *cp;
  75:         int n;
  76:         char *index();
  77:         struct in_addr in, inet_makeaddr();
  78: 
  79:         if (ifaddraddr == 0) {
  80:             klseek(kmem, (off_t)ifnetaddr, 0);
  81:             read(kmem, &ifnet, sizeof ifnet);
  82:             klseek(kmem, (off_t)ifnet.if_name, 0);
  83:             read(kmem, name, 16);
  84:             name[15] = '\0';
  85:             ifnetaddr = (off_t) ifnet.if_next;
  86:             if (interface != 0 &&
  87:                 (strcmp(name, interface) != 0 || unit != ifnet.if_unit))
  88:                 continue;
  89:             cp = index(name, '\0');
  90:             *cp++ = ifnet.if_unit + '0';
  91:             if ((ifnet.if_flags&IFF_UP) == 0)
  92:                 *cp++ = '*';
  93:             *cp = '\0';
  94:             ifaddraddr = (off_t)ifnet.if_addrlist;
  95:         }
  96:         printf("%-5.5s %-5d ", name, ifnet.if_mtu);
  97:         if (ifaddraddr == 0) {
  98:             printf("%-10.10s  ", "none");
  99:             printf("%-12.12s ", "none");
 100:         } else {
 101:             klseek(kmem, (off_t)ifaddraddr, 0);
 102:             read(kmem, &ifaddr, sizeof ifaddr);
 103:             ifaddraddr = (off_t)ifaddr.ifa.ifa_next;
 104:             switch (ifaddr.ifa.ifa_addr.sa_family) {
 105:             case AF_UNSPEC:
 106:                 printf("%-10.10s  ", "none");
 107:                 printf("%-12.12s ", "none");
 108:                 break;
 109:             case AF_INET:
 110:                 sin = (struct sockaddr_in *)&ifaddr.in.ia_addr;
 111: #ifdef notdef
 112:                 /* can't use inet_makeaddr because kernel
 113: 				 * keeps nets unshifted.
 114: 				 */
 115:                 in = inet_makeaddr(ifaddr.in.ia_subnet,
 116:                     INADDR_ANY);
 117:                 printf("%-10.10s  ", netname(in));
 118: #else
 119:                 printf("%-10.10s  ",
 120:                     netname(htonl(ifaddr.in.ia_subnet),
 121:                         ifaddr.in.ia_subnetmask));
 122: #endif
 123:                 printf("%-12.12s ", routename(sin->sin_addr));
 124:                 break;
 125:             case AF_NS:
 126:                 {
 127:                 struct sockaddr_ns *sns =
 128:                 (struct sockaddr_ns *)&ifaddr.in.ia_addr;
 129:                 long net;
 130:                 char host[8];
 131:                 *(union ns_net *) &net = sns->sns_addr.x_net;
 132:                 sprintf(host, "%lxH", ntohl(net));
 133:                 upHex(host);
 134:                 printf("ns:%-8s ", host);
 135: 
 136:                 printf("%-12s ",ns_phost(sns));
 137:                 }
 138:                 break;
 139:             default:
 140:                 printf("af%2d: ", ifaddr.ifa.ifa_addr.sa_family);
 141:                 for (cp = (char *)&ifaddr.ifa.ifa_addr +
 142:                     sizeof(struct sockaddr) - 1;
 143:                     cp >= ifaddr.ifa.ifa_addr.sa_data; --cp)
 144:                     if (*cp != 0)
 145:                         break;
 146:                 n = cp - (char *)ifaddr.ifa.ifa_addr.sa_data + 1;
 147:                 cp = (char *)ifaddr.ifa.ifa_addr.sa_data;
 148:                 if (n <= 6)
 149:                     while (--n)
 150:                         printf("%02d.", *cp++ & 0xff);
 151:                 else
 152:                     while (--n)
 153:                         printf("%02d", *cp++ & 0xff);
 154:                 printf("%02d ", *cp & 0xff);
 155:                 break;
 156:             }
 157:         }
 158:         printf("%-7D %-5D %-7D %-5D %-6D",
 159:             ifnet.if_ipackets, ifnet.if_ierrors,
 160:             ifnet.if_opackets, ifnet.if_oerrors,
 161:             ifnet.if_collisions);
 162:         if (tflag)
 163:             printf(" %-6d", ifnet.if_timer);
 164:         putchar('\n');
 165:     }
 166: }
 167: 
 168: #ifndef CRASH
 169: #define MAXIF   10
 170: struct  iftot {
 171:     char    ift_name[16];       /* interface name */
 172:     int ift_ip;         /* input packets */
 173:     int ift_ie;         /* input errors */
 174:     int ift_op;         /* output packets */
 175:     int ift_oe;         /* output errors */
 176:     int ift_co;         /* collisions */
 177: } iftot[MAXIF];
 178: 
 179: /*
 180:  * Print a running summary of interface statistics.
 181:  * Repeat display every interval seconds, showing
 182:  * statistics collected over that interval.  First
 183:  * line printed at top of screen is always cumulative.
 184:  */
 185: sidewaysintpr(interval, off)
 186:     int interval;
 187:     off_t off;
 188: {
 189:     struct ifnet ifnet;
 190:     off_t firstifnet;
 191:     register struct iftot *ip, *total;
 192:     register int line;
 193:     struct iftot *lastif, *sum, *interesting;
 194:     int maxtraffic;
 195: 
 196:     klseek(kmem, (off_t)off, 0);
 197: #if pdp11
 198:     { unsigned x;
 199:     read(kmem, &x, sizeof (x));
 200:     firstifnet = (long)x;
 201:     }
 202: #else
 203:     read(kmem, &firstifnet, sizeof (off_t));
 204: #endif
 205:     lastif = iftot;
 206:     sum = iftot + MAXIF - 1;
 207:     total = sum - 1;
 208:     interesting = iftot;
 209:     for (off = firstifnet, ip = iftot; off;) {
 210:         char *cp;
 211: 
 212:         klseek(kmem, (off_t)off, 0);
 213:         read(kmem, &ifnet, sizeof ifnet);
 214:         klseek(kmem, (off_t)ifnet.if_name, 0);
 215:         ip->ift_name[0] = '(';
 216:         read(kmem, ip->ift_name + 1, 15);
 217:         if (interface && strcmp(ip->ift_name + 1, interface) == 0 &&
 218:             unit == ifnet.if_unit)
 219:             interesting = ip;
 220:         ip->ift_name[15] = '\0';
 221:         cp = index(ip->ift_name, '\0');
 222:         sprintf(cp, "%d)", ifnet.if_unit);
 223:         ip++;
 224:         if (ip >= iftot + MAXIF - 2)
 225:             break;
 226:         off = (off_t) ifnet.if_next;
 227:     }
 228:     lastif = ip;
 229: banner:
 230:     printf("    input   %-6.6s    output       ", interesting->ift_name);
 231:     if (lastif - iftot > 0)
 232:         printf("   input  (Total)    output       ");
 233:     for (ip = iftot; ip < iftot + MAXIF; ip++) {
 234:         ip->ift_ip = 0;
 235:         ip->ift_ie = 0;
 236:         ip->ift_op = 0;
 237:         ip->ift_oe = 0;
 238:         ip->ift_co = 0;
 239:     }
 240:     putchar('\n');
 241:     printf("%-7.7s %-5.5s %-7.7s %-5.5s %-5.5s ",
 242:         "packets", "errs", "packets", "errs", "colls");
 243:     if (lastif - iftot > 0)
 244:         printf("%-7.7s %-5.5s %-7.7s %-5.5s %-5.5s ",
 245:             "packets", "errs", "packets", "errs", "colls");
 246:     putchar('\n');
 247:     fflush(stdout);
 248:     line = 0;
 249: loop:
 250:     sum->ift_ip = 0;
 251:     sum->ift_ie = 0;
 252:     sum->ift_op = 0;
 253:     sum->ift_oe = 0;
 254:     sum->ift_co = 0;
 255:     for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) {
 256:         klseek(kmem, (off_t)off, 0);
 257:         read(kmem, &ifnet, sizeof ifnet);
 258:         if (ip == interesting)
 259:             printf("%-7d %-5d %-7d %-5d %-5d ",
 260:                 ifnet.if_ipackets - ip->ift_ip,
 261:                 ifnet.if_ierrors - ip->ift_ie,
 262:                 ifnet.if_opackets - ip->ift_op,
 263:                 ifnet.if_oerrors - ip->ift_oe,
 264:                 ifnet.if_collisions - ip->ift_co);
 265:         ip->ift_ip = ifnet.if_ipackets;
 266:         ip->ift_ie = ifnet.if_ierrors;
 267:         ip->ift_op = ifnet.if_opackets;
 268:         ip->ift_oe = ifnet.if_oerrors;
 269:         ip->ift_co = ifnet.if_collisions;
 270:         sum->ift_ip += ip->ift_ip;
 271:         sum->ift_ie += ip->ift_ie;
 272:         sum->ift_op += ip->ift_op;
 273:         sum->ift_oe += ip->ift_oe;
 274:         sum->ift_co += ip->ift_co;
 275:         off = (off_t) ifnet.if_next;
 276:     }
 277:     if (lastif - iftot > 0)
 278:         printf("%-7d %-5d %-7d %-5d %-5d\n",
 279:             sum->ift_ip - total->ift_ip,
 280:             sum->ift_ie - total->ift_ie,
 281:             sum->ift_op - total->ift_op,
 282:             sum->ift_oe - total->ift_oe,
 283:             sum->ift_co - total->ift_co);
 284:     *total = *sum;
 285:     fflush(stdout);
 286:     line++;
 287:     if (interval)
 288:         sleep(interval);
 289:     if (line == 21)
 290:         goto banner;
 291:     goto loop;
 292:     /*NOTREACHED*/
 293: }
 294: #endif	!CRASH

Defined functions

intpr defined in line 33; used 1 times
sidewaysintpr defined in line 185; used 1 times
  • in line 51

Defined variables

iftot defined in line 177; used 11 times
sccsid defined in line 8; never used

Defined struct's

iftot defined in line 170; used 4 times

Defined macros

MAXIF defined in line 169; used 4 times
Last modified: 1992-12-24
Generated: 2016-12-26
Generated by src2html V0.67
page hit count: 901
Valid CSS Valid XHTML 1.0 Strict