Annotation of src/usr.bin/netstat/if.c, Revision 1.51
1.51 ! ray 1: /* $OpenBSD: if.c,v 1.50 2007/06/04 12:20:24 henning Exp $ */
1.6 deraadt 2: /* $NetBSD: if.c,v 1.16.4.2 1996/06/07 21:46:46 thorpej Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1983, 1988, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.35 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #ifndef lint
34: #if 0
35: static char sccsid[] = "from: @(#)if.c 8.2 (Berkeley) 2/21/94";
36: #else
1.51 ! ray 37: static char *rcsid = "$OpenBSD: if.c,v 1.50 2007/06/04 12:20:24 henning Exp $";
1.1 deraadt 38: #endif
39: #endif /* not lint */
40:
41: #include <sys/types.h>
42: #include <sys/protosw.h>
43: #include <sys/socket.h>
44:
45: #include <net/if.h>
46: #include <net/if_dl.h>
1.5 deraadt 47: #include <net/if_types.h>
1.1 deraadt 48: #include <netinet/in.h>
49: #include <netinet/in_var.h>
1.11 millert 50: #include <netinet/if_ether.h>
1.1 deraadt 51: #include <arpa/inet.h>
52:
1.13 millert 53: #include <limits.h>
1.1 deraadt 54: #include <signal.h>
55: #include <stdio.h>
1.36 david 56: #include <stdlib.h>
1.1 deraadt 57: #include <string.h>
58: #include <unistd.h>
59:
60: #include "netstat.h"
61:
62: #define YES 1
63: #define NO 0
64:
1.29 millert 65: static void sidewaysintpr(u_int, u_long);
66: static void catchalarm(int);
1.1 deraadt 67:
68: /*
69: * Print a description of the network interfaces.
1.3 deraadt 70: * NOTE: ifnetaddr is the location of the kernel global "ifnet",
71: * which is a TAILQ_HEAD.
1.1 deraadt 72: */
73: void
1.33 deraadt 74: intpr(int interval, u_long ifnetaddr)
1.1 deraadt 75: {
76: struct ifnet ifnet;
77: union {
78: struct ifaddr ifa;
79: struct in_ifaddr in;
1.18 itojun 80: #ifdef INET6
81: struct in6_ifaddr in6;
82: #endif
1.1 deraadt 83: } ifaddr;
1.33 deraadt 84: u_long total, ifaddraddr;
1.1 deraadt 85: struct sockaddr *sa;
1.3 deraadt 86: struct ifnet_head ifhead; /* TAILQ_HEAD */
87: char name[IFNAMSIZ];
1.1 deraadt 88:
89: if (ifnetaddr == 0) {
90: printf("ifnet: symbol not defined\n");
91: return;
92: }
93: if (interval) {
94: sidewaysintpr((unsigned)interval, ifnetaddr);
95: return;
96: }
1.3 deraadt 97:
98: /*
99: * Find the pointer to the first ifnet structure. Replace
100: * the pointer to the TAILQ_HEAD with the actual pointer
101: * to the first list element.
102: */
1.43 jaredy 103: if (kread(ifnetaddr, &ifhead, sizeof ifhead))
1.1 deraadt 104: return;
1.45 otto 105: ifnetaddr = (u_long)TAILQ_FIRST(&ifhead);
1.3 deraadt 106:
1.22 camield 107: printf("%-7.7s %-5.5s %-11.11s %-17.17s ",
1.33 deraadt 108: "Name", "Mtu", "Network", "Address");
1.22 camield 109: if (bflag)
110: printf("%10.10s %10.10s", "Ibytes", "Obytes");
111: else
112: printf("%8.8s %5.5s %8.8s %5.5s %5.5s",
113: "Ipkts", "Ierrs", "Opkts", "Oerrs", "Colls");
1.1 deraadt 114: if (tflag)
115: printf(" %s", "Time");
116: if (dflag)
117: printf(" %s", "Drop");
118: putchar('\n');
119: ifaddraddr = 0;
120: while (ifnetaddr || ifaddraddr) {
121: struct sockaddr_in *sin;
1.18 itojun 122: #ifdef INET6
123: struct sockaddr_in6 *sin6;
124: #endif
1.27 mpech 125: char *cp;
1.1 deraadt 126: int n, m;
127:
128: if (ifaddraddr == 0) {
1.43 jaredy 129: if (kread(ifnetaddr, &ifnet, sizeof ifnet))
1.1 deraadt 130: return;
1.3 deraadt 131: bcopy(ifnet.if_xname, name, IFNAMSIZ);
132: name[IFNAMSIZ - 1] = '\0'; /* sanity */
1.45 otto 133: ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_list);
1.3 deraadt 134: if (interface != 0 && strcmp(name, interface) != 0)
1.1 deraadt 135: continue;
1.10 millert 136: cp = strchr(name, '\0');
1.1 deraadt 137: if ((ifnet.if_flags & IFF_UP) == 0)
138: *cp++ = '*';
139: *cp = '\0';
1.45 otto 140: ifaddraddr = (u_long)TAILQ_FIRST(&ifnet.if_addrlist);
1.1 deraadt 141: }
1.25 brian 142:
143: if (qflag) {
144: total = ifnet.if_ibytes + ifnet.if_obytes +
145: ifnet.if_ipackets + ifnet.if_ierrors +
146: ifnet.if_opackets + ifnet.if_oerrors +
147: ifnet.if_collisions;
148: if (tflag)
149: total += ifnet.if_timer;
150: if (dflag)
151: total += ifnet.if_snd.ifq_drops;
152: if (total == 0) {
153: ifaddraddr = 0;
154: continue;
155: }
156: }
157:
1.51 ! ray 158: printf("%-7s %-5ld ", name, ifnet.if_mtu);
1.1 deraadt 159: if (ifaddraddr == 0) {
160: printf("%-11.11s ", "none");
1.37 deraadt 161: printf("%-17.17s ", "none");
1.1 deraadt 162: } else {
1.43 jaredy 163: if (kread(ifaddraddr, &ifaddr, sizeof ifaddr)) {
1.1 deraadt 164: ifaddraddr = 0;
165: continue;
166: }
167: #define CP(x) ((char *)(x))
168: cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
169: CP(&ifaddr); sa = (struct sockaddr *)cp;
170: switch (sa->sa_family) {
171: case AF_UNSPEC:
172: printf("%-11.11s ", "none");
173: printf("%-17.17s ", "none");
174: break;
175: case AF_INET:
176: sin = (struct sockaddr_in *)sa;
177: #ifdef notdef
178: /* can't use inet_makeaddr because kernel
179: * keeps nets unshifted.
180: */
181: in = inet_makeaddr(ifaddr.in.ia_subnet,
1.30 deraadt 182: INADDR_ANY);
1.47 claudio 183: cp = netname4(in.s_addr,
1.30 deraadt 184: ifaddr.in.ia_subnetmask);
1.1 deraadt 185: #else
1.47 claudio 186: cp = netname4(ifaddr.in.ia_subnet,
1.20 itojun 187: ifaddr.in.ia_subnetmask);
1.1 deraadt 188: #endif
1.20 itojun 189: if (vflag)
190: n = strlen(cp) < 11 ? 11 : strlen(cp);
191: else
192: n = 11;
193: printf("%-*.*s ", n, n, cp);
1.47 claudio 194: cp = routename4(sin->sin_addr.s_addr);
1.20 itojun 195: if (vflag)
196: n = strlen(cp) < 17 ? 17 : strlen(cp);
197: else
198: n = 17;
199: printf("%-*.*s ", n, n, cp);
1.1 deraadt 200:
201: if (aflag) {
202: u_long multiaddr;
203: struct in_multi inm;
1.28 mickey 204:
1.45 otto 205: multiaddr = (u_long)LIST_FIRST(&ifaddr.in.ia_multiaddrs);
1.1 deraadt 206: while (multiaddr != 0) {
1.43 jaredy 207: kread(multiaddr, &inm, sizeof inm);
1.19 itojun 208: printf("\n%25s %-17.17s ", "",
1.47 claudio 209: routename4(inm.inm_addr.s_addr));
1.45 otto 210: multiaddr = (u_long)LIST_NEXT(&inm, inm_list);
1.1 deraadt 211: }
1.8 mickey 212: }
213: break;
1.18 itojun 214: #ifdef INET6
215: case AF_INET6:
216: sin6 = (struct sockaddr_in6 *)sa;
1.34 itojun 217: #ifdef __KAME__
1.20 itojun 218: if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
219: sin6->sin6_scope_id =
1.30 deraadt 220: ntohs(*(u_int16_t *)
1.38 deraadt 221: &sin6->sin6_addr.s6_addr[2]);
1.20 itojun 222: sin6->sin6_addr.s6_addr[2] = 0;
223: sin6->sin6_addr.s6_addr[3] = 0;
224: }
225: #endif
226: cp = netname6(&ifaddr.in6.ia_addr,
1.47 claudio 227: &ifaddr.in6.ia_prefixmask);
1.20 itojun 228: if (vflag)
229: n = strlen(cp) < 11 ? 11 : strlen(cp);
230: else
231: n = 11;
232: printf("%-*.*s ", n, n, cp);
233: cp = routename6(sin6);
234: if (vflag)
235: n = strlen(cp) < 17 ? 17 : strlen(cp);
236: else
237: n = 17;
238: printf("%-*.*s ", n, n, cp);
1.19 itojun 239: if (aflag) {
240: u_long multiaddr;
241: struct in6_multi inm;
1.31 itojun 242: struct sockaddr_in6 m6;
1.28 mickey 243:
1.45 otto 244: multiaddr = (u_long)LIST_FIRST(&ifaddr.in6.ia6_multiaddrs);
1.19 itojun 245: while (multiaddr != 0) {
1.43 jaredy 246: kread(multiaddr, &inm, sizeof inm);
1.31 itojun 247: memset(&m6, 0, sizeof(m6));
248: m6.sin6_len = sizeof(struct sockaddr_in6);
249: m6.sin6_family = AF_INET6;
250: m6.sin6_addr = inm.in6m_addr;
1.34 itojun 251: #ifdef __KAME__
1.49 itojun 252: if (IN6_IS_ADDR_MC_LINKLOCAL(&m6.sin6_addr) ||
253: IN6_IS_ADDR_MC_INTFACELOCAL(&m6.sin6_addr)) {
1.31 itojun 254: m6.sin6_scope_id =
255: ntohs(*(u_int16_t *)
1.38 deraadt 256: &m6.sin6_addr.s6_addr[2]);
1.31 itojun 257: m6.sin6_addr.s6_addr[2] = 0;
258: m6.sin6_addr.s6_addr[3] = 0;
259: }
260: #endif
261: cp = routename6(&m6);
1.19 itojun 262: if (vflag)
1.31 itojun 263: n = strlen(cp) < 17 ? 17 : strlen(cp);
1.19 itojun 264: else
265: n = 17;
266: printf("\n%25s %-*.*s ", "",
1.31 itojun 267: n, n, cp);
1.45 otto 268: multiaddr = (u_long)LIST_NEXT(&inm, in6m_entry);
1.19 itojun 269: }
270: }
1.18 itojun 271: break;
272: #endif
1.15 denny 273: case AF_APPLETALK:
274: printf("atlk:%-12s",atalk_print(sa,0x10) );
275: printf("%-12s ",atalk_print(sa,0x0b) );
1.1 deraadt 276: break;
277: case AF_LINK:
278: {
279: struct sockaddr_dl *sdl =
280: (struct sockaddr_dl *)sa;
1.5 deraadt 281: m = printf("%-11.11s ", "<Link>");
282: if (sdl->sdl_type == IFT_ETHER ||
1.42 mpf 283: sdl->sdl_type == IFT_CARP ||
1.23 fgsch 284: sdl->sdl_type == IFT_FDDI ||
285: sdl->sdl_type == IFT_ISO88025)
1.5 deraadt 286: printf("%-17.17s ",
1.11 millert 287: ether_ntoa((struct ether_addr *)LLADDR(sdl)));
1.5 deraadt 288: else {
289: cp = (char *)LLADDR(sdl);
290: n = sdl->sdl_alen;
291: goto hexprint;
292: }
1.1 deraadt 293: }
1.5 deraadt 294: break;
1.1 deraadt 295: default:
296: m = printf("(%d)", sa->sa_family);
297: for (cp = sa->sa_len + (char *)sa;
298: --cp > sa->sa_data && (*cp == 0);) {}
299: n = cp - sa->sa_data + 1;
300: cp = sa->sa_data;
301: hexprint:
302: while (--n >= 0)
303: m += printf("%x%c", *cp++ & 0xff,
304: n > 0 ? '.' : ' ');
305: m = 30 - m;
306: while (m-- > 0)
307: putchar(' ');
308: break;
309: }
1.45 otto 310: ifaddraddr = (u_long)TAILQ_NEXT(&ifaddr.ifa, ifa_list);
1.1 deraadt 311: }
1.22 camield 312: if (bflag)
313: printf("%10lu %10lu",
314: ifnet.if_ibytes, ifnet.if_obytes);
315: else
316: printf("%8lu %5lu %8lu %5lu %5lu",
317: ifnet.if_ipackets, ifnet.if_ierrors,
318: ifnet.if_opackets, ifnet.if_oerrors,
319: ifnet.if_collisions);
1.1 deraadt 320: if (tflag)
1.22 camield 321: printf(" %4d", ifnet.if_timer);
1.1 deraadt 322: if (dflag)
1.22 camield 323: printf(" %4d", ifnet.if_snd.ifq_drops);
1.1 deraadt 324: putchar('\n');
325: }
326: }
327:
1.4 deraadt 328: #define MAXIF 100
1.1 deraadt 329: struct iftot {
1.3 deraadt 330: char ift_name[IFNAMSIZ]; /* interface name */
1.40 dhartmei 331: u_long ift_ip; /* input packets */
332: u_long ift_ib; /* input bytes */
333: u_long ift_ie; /* input errors */
334: u_long ift_op; /* output packets */
335: u_long ift_ob; /* output bytes */
336: u_long ift_oe; /* output errors */
337: u_long ift_co; /* collisions */
338: u_long ift_dr; /* drops */
1.1 deraadt 339: } iftot[MAXIF];
340:
1.26 millert 341: volatile sig_atomic_t signalled; /* set if alarm goes off "early" */
1.1 deraadt 342:
343: /*
344: * Print a running summary of interface statistics.
345: * Repeat display every interval seconds, showing statistics
346: * collected over that interval. Assumes that interval is non-zero.
347: * First line printed at top of screen is always cumulative.
348: */
349: static void
1.33 deraadt 350: sidewaysintpr(unsigned int interval, u_long off)
1.1 deraadt 351: {
352: struct ifnet ifnet;
353: u_long firstifnet;
1.27 mpech 354: struct iftot *ip, *total;
355: int line;
1.1 deraadt 356: struct iftot *lastif, *sum, *interesting;
1.3 deraadt 357: struct ifnet_head ifhead; /* TAILQ_HEAD */
1.26 millert 358: sigset_t emptyset;
1.1 deraadt 359:
1.3 deraadt 360: /*
361: * Find the pointer to the first ifnet structure. Replace
362: * the pointer to the TAILQ_HEAD with the actual pointer
363: * to the first list element.
364: */
1.43 jaredy 365: if (kread(off, &ifhead, sizeof ifhead))
1.1 deraadt 366: return;
1.45 otto 367: firstifnet = (u_long)TAILQ_FIRST(&ifhead);
1.3 deraadt 368:
1.1 deraadt 369: lastif = iftot;
370: sum = iftot + MAXIF - 1;
371: total = sum - 1;
1.4 deraadt 372: interesting = (interface == NULL) ? iftot : NULL;
1.1 deraadt 373: for (off = firstifnet, ip = iftot; off;) {
1.43 jaredy 374: if (kread(off, &ifnet, sizeof ifnet))
1.1 deraadt 375: break;
1.6 deraadt 376: bzero(ip->ift_name, sizeof(ip->ift_name));
1.22 camield 377: snprintf(ip->ift_name, IFNAMSIZ, "%s", ifnet.if_xname);
1.6 deraadt 378: if (interface && strcmp(ifnet.if_xname, interface) == 0)
1.1 deraadt 379: interesting = ip;
380: ip++;
381: if (ip >= iftot + MAXIF - 2)
382: break;
1.45 otto 383: off = (u_long)TAILQ_NEXT(&ifnet, if_list);
1.4 deraadt 384: }
385: if (interesting == NULL) {
386: fprintf(stderr, "%s: %s: unknown interface\n",
387: __progname, interface);
388: exit(1);
1.1 deraadt 389: }
390: lastif = ip;
391:
392: (void)signal(SIGALRM, catchalarm);
393: signalled = NO;
394: (void)alarm(interval);
395: banner:
1.22 camield 396: if (bflag)
397: printf("%7.7s in %8.8s %6.6s out %5.5s",
398: interesting->ift_name, " ",
399: interesting->ift_name, " ");
400: else
401: printf("%5.5s in %5.5s%5.5s out %5.5s %5.5s",
402: interesting->ift_name, " ",
403: interesting->ift_name, " ", " ");
404: if (dflag)
405: printf(" %5.5s", " ");
1.1 deraadt 406: if (lastif - iftot > 0) {
1.22 camield 407: if (bflag)
408: printf(" %7.7s in %8.8s %6.6s out %5.5s",
409: "total", " ", "total", " ");
410: else
411: printf(" %5.5s in %5.5s%5.5s out %5.5s %5.5s",
412: "total", " ", "total", " ", " ");
1.1 deraadt 413: if (dflag)
1.22 camield 414: printf(" %5.5s", " ");
1.1 deraadt 415: }
416: for (ip = iftot; ip < iftot + MAXIF; ip++) {
417: ip->ift_ip = 0;
1.22 camield 418: ip->ift_ib = 0;
1.1 deraadt 419: ip->ift_ie = 0;
420: ip->ift_op = 0;
1.22 camield 421: ip->ift_ob = 0;
1.1 deraadt 422: ip->ift_oe = 0;
423: ip->ift_co = 0;
424: ip->ift_dr = 0;
425: }
426: putchar('\n');
1.22 camield 427: if (bflag)
428: printf("%10.10s %8.8s %10.10s %5.5s",
429: "bytes", " ", "bytes", " ");
430: else
431: printf("%8.8s %5.5s %8.8s %5.5s %5.5s",
432: "packets", "errs", "packets", "errs", "colls");
1.1 deraadt 433: if (dflag)
434: printf(" %5.5s", "drops");
1.22 camield 435: if (lastif - iftot > 0) {
436: if (bflag)
437: printf(" %10.10s %8.8s %10.10s %5.5s",
438: "bytes", " ", "bytes", " ");
439: else
440: printf(" %8.8s %5.5s %8.8s %5.5s %5.5s",
441: "packets", "errs", "packets", "errs", "colls");
442: if (dflag)
443: printf(" %5.5s", "drops");
444: }
1.1 deraadt 445: putchar('\n');
446: fflush(stdout);
447: line = 0;
448: loop:
449: sum->ift_ip = 0;
1.22 camield 450: sum->ift_ib = 0;
1.1 deraadt 451: sum->ift_ie = 0;
452: sum->ift_op = 0;
1.22 camield 453: sum->ift_ob = 0;
1.1 deraadt 454: sum->ift_oe = 0;
455: sum->ift_co = 0;
456: sum->ift_dr = 0;
457: for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) {
1.43 jaredy 458: if (kread(off, &ifnet, sizeof ifnet)) {
1.1 deraadt 459: off = 0;
460: continue;
461: }
462: if (ip == interesting) {
1.22 camield 463: if (bflag)
464: printf("%10lu %8.8s %10lu %5.5s",
465: ifnet.if_ibytes - ip->ift_ib, " ",
466: ifnet.if_obytes - ip->ift_ob, " ");
467: else
468: printf("%8lu %5lu %8lu %5lu %5lu",
469: ifnet.if_ipackets - ip->ift_ip,
470: ifnet.if_ierrors - ip->ift_ie,
471: ifnet.if_opackets - ip->ift_op,
472: ifnet.if_oerrors - ip->ift_oe,
473: ifnet.if_collisions - ip->ift_co);
1.1 deraadt 474: if (dflag)
1.41 jaredy 475: printf(" %5lu",
1.1 deraadt 476: ifnet.if_snd.ifq_drops - ip->ift_dr);
477: }
478: ip->ift_ip = ifnet.if_ipackets;
1.22 camield 479: ip->ift_ib = ifnet.if_ibytes;
1.1 deraadt 480: ip->ift_ie = ifnet.if_ierrors;
481: ip->ift_op = ifnet.if_opackets;
1.22 camield 482: ip->ift_ob = ifnet.if_obytes;
1.1 deraadt 483: ip->ift_oe = ifnet.if_oerrors;
484: ip->ift_co = ifnet.if_collisions;
485: ip->ift_dr = ifnet.if_snd.ifq_drops;
486: sum->ift_ip += ip->ift_ip;
1.22 camield 487: sum->ift_ib += ip->ift_ib;
1.1 deraadt 488: sum->ift_ie += ip->ift_ie;
489: sum->ift_op += ip->ift_op;
1.22 camield 490: sum->ift_ob += ip->ift_ob;
1.1 deraadt 491: sum->ift_oe += ip->ift_oe;
492: sum->ift_co += ip->ift_co;
493: sum->ift_dr += ip->ift_dr;
1.45 otto 494: off = (u_long)TAILQ_NEXT(&ifnet, if_list);
1.1 deraadt 495: }
496: if (lastif - iftot > 0) {
1.22 camield 497: if (bflag)
498: printf(" %10lu %8.8s %10lu %5.5s",
1.41 jaredy 499: sum->ift_ib - total->ift_ib, " ",
500: sum->ift_ob - total->ift_ob, " ");
1.22 camield 501: else
502: printf(" %8lu %5lu %8lu %5lu %5lu",
1.41 jaredy 503: sum->ift_ip - total->ift_ip,
504: sum->ift_ie - total->ift_ie,
505: sum->ift_op - total->ift_op,
506: sum->ift_oe - total->ift_oe,
507: sum->ift_co - total->ift_co);
1.1 deraadt 508: if (dflag)
1.41 jaredy 509: printf(" %5lu", sum->ift_dr - total->ift_dr);
1.1 deraadt 510: }
511: *total = *sum;
512: putchar('\n');
513: fflush(stdout);
514: line++;
1.26 millert 515: sigemptyset(&emptyset);
516: if (!signalled)
517: sigsuspend(&emptyset);
1.1 deraadt 518: signalled = NO;
519: (void)alarm(interval);
520: if (line == 21)
521: goto banner;
522: goto loop;
523: /*NOTREACHED*/
524: }
525:
526: /*
527: * Called if an interval expires before sidewaysintpr has completed a loop.
528: * Sets a flag to not wait for the alarm.
529: */
1.46 deraadt 530: /* ARGSUSED */
1.1 deraadt 531: static void
1.33 deraadt 532: catchalarm(int signo)
1.1 deraadt 533: {
534: signalled = YES;
1.47 claudio 535: }
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