Commit | Line | Data |
---|---|---|
3b86b0f6 | 1 | /* |
86f08f99 KB |
2 | * Copyright (c) 1983 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
af359dea C |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
3b86b0f6 DF |
32 | */ |
33 | ||
34 | #ifndef lint | |
35 | char copyright[] = | |
86f08f99 | 36 | "@(#) Copyright (c) 1983 The Regents of the University of California.\n\ |
3b86b0f6 | 37 | All rights reserved.\n"; |
86f08f99 | 38 | #endif /* not lint */ |
3b86b0f6 | 39 | |
52b4fb0c | 40 | #ifndef lint |
af359dea | 41 | static char sccsid[] = "@(#)rwhod.c 5.20 (Berkeley) 3/2/91"; |
86f08f99 | 42 | #endif /* not lint */ |
52b4fb0c | 43 | |
b584098b | 44 | #include <sys/param.h> |
52b4fb0c | 45 | #include <sys/socket.h> |
52b4fb0c | 46 | #include <sys/stat.h> |
17ccb086 | 47 | #include <sys/signal.h> |
52b4fb0c | 48 | #include <sys/ioctl.h> |
9bd66dcf | 49 | #include <sys/file.h> |
de3b21e8 | 50 | |
7af17b3e | 51 | #include <net/if.h> |
de3b21e8 SL |
52 | #include <netinet/in.h> |
53 | ||
54 | #include <nlist.h> | |
de3b21e8 SL |
55 | #include <errno.h> |
56 | #include <utmp.h> | |
a0f59ac1 SL |
57 | #include <ctype.h> |
58 | #include <netdb.h> | |
00cdc205 | 59 | #include <syslog.h> |
3c13756b | 60 | #include <protocols/rwhod.h> |
17ccb086 | 61 | #include <stdio.h> |
7abf8d65 | 62 | #include <paths.h> |
de3b21e8 | 63 | |
83361bb3 RC |
64 | /* |
65 | * Alarm interval. Don't forget to change the down time check in ruptime | |
66 | * if this is changed. | |
67 | */ | |
00cdc205 | 68 | #define AL_INTERVAL (3 * 60) |
83361bb3 | 69 | |
b584098b | 70 | struct sockaddr_in sin; |
52b4fb0c | 71 | |
b584098b | 72 | char myname[MAXHOSTNAMELEN]; |
52b4fb0c BJ |
73 | |
74 | struct nlist nl[] = { | |
4b8ee582 | 75 | #define NL_BOOTTIME 0 |
de3b21e8 | 76 | { "_boottime" }, |
52b4fb0c BJ |
77 | 0 |
78 | }; | |
79 | ||
7af17b3e SL |
80 | /* |
81 | * We communicate with each neighbor in | |
82 | * a list constructed at the time we're | |
83 | * started up. Neighbors are currently | |
84 | * directly connected via a hardware interface. | |
85 | */ | |
86 | struct neighbor { | |
87 | struct neighbor *n_next; | |
88 | char *n_name; /* interface name */ | |
89 | char *n_addr; /* who to send to */ | |
90 | int n_addrlen; /* size of address */ | |
91 | int n_flags; /* should forward?, interface flags */ | |
92 | }; | |
93 | ||
94 | struct neighbor *neighbors; | |
52b4fb0c | 95 | struct whod mywd; |
7af17b3e | 96 | struct servent *sp; |
52b4fb0c BJ |
97 | int s, utmpf, kmemf = -1; |
98 | ||
7af17b3e | 99 | #define WHDRSIZE (sizeof (mywd) - sizeof (mywd.wd_we)) |
fea387f0 | 100 | |
17ccb086 | 101 | extern int errno; |
9bd38ba8 | 102 | char *strcpy(), *malloc(); |
52b4fb0c | 103 | long lseek(); |
0df908a9 | 104 | void getkmem(), onalrm(); |
7af17b3e | 105 | struct in_addr inet_makeaddr(); |
52b4fb0c BJ |
106 | |
107 | main() | |
108 | { | |
109 | struct sockaddr_in from; | |
0f2d5e68 | 110 | struct stat st; |
52b4fb0c | 111 | char path[64]; |
221be169 | 112 | int on = 1; |
17ccb086 | 113 | char *cp, *index(), *strerror(); |
52b4fb0c | 114 | |
00cdc205 RC |
115 | if (getuid()) { |
116 | fprintf(stderr, "rwhod: not super user\n"); | |
117 | exit(1); | |
118 | } | |
a0f59ac1 SL |
119 | sp = getservbyname("who", "udp"); |
120 | if (sp == 0) { | |
121 | fprintf(stderr, "rwhod: udp/who: unknown service\n"); | |
122 | exit(1); | |
123 | } | |
52b4fb0c | 124 | #ifndef DEBUG |
afe907a4 | 125 | daemon(1, 0); |
52b4fb0c | 126 | #endif |
17ccb086 KB |
127 | if (chdir(_PATH_RWHODIR) < 0) { |
128 | (void)fprintf(stderr, "rwhod: %s: %s\n", | |
129 | _PATH_RWHODIR, strerror(errno)); | |
ac82a1ec KM |
130 | exit(1); |
131 | } | |
52b4fb0c | 132 | (void) signal(SIGHUP, getkmem); |
076ae92c | 133 | openlog("rwhod", LOG_PID, LOG_DAEMON); |
7af17b3e SL |
134 | /* |
135 | * Establish host name as returned by system. | |
136 | */ | |
137 | if (gethostname(myname, sizeof (myname) - 1) < 0) { | |
00cdc205 | 138 | syslog(LOG_ERR, "gethostname: %m"); |
52b4fb0c BJ |
139 | exit(1); |
140 | } | |
d2444544 JB |
141 | if ((cp = index(myname, '.')) != NULL) |
142 | *cp = '\0'; | |
7af17b3e | 143 | strncpy(mywd.wd_hostname, myname, sizeof (myname) - 1); |
17ccb086 | 144 | utmpf = open(_PATH_UTMP, O_RDONLY|O_CREAT, 0644); |
52b4fb0c | 145 | if (utmpf < 0) { |
17ccb086 | 146 | syslog(LOG_ERR, "%s: %m", _PATH_UTMP); |
52b4fb0c BJ |
147 | exit(1); |
148 | } | |
149 | getkmem(); | |
9bd66dcf | 150 | if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { |
00cdc205 | 151 | syslog(LOG_ERR, "socket: %m"); |
de3b21e8 SL |
152 | exit(1); |
153 | } | |
3de1986a | 154 | if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &on, sizeof (on)) < 0) { |
b0e1e5f3 MK |
155 | syslog(LOG_ERR, "setsockopt SO_BROADCAST: %m"); |
156 | exit(1); | |
157 | } | |
b584098b | 158 | sin.sin_family = AF_INET; |
7af17b3e | 159 | sin.sin_port = sp->s_port; |
0df908a9 | 160 | if (bind(s, (struct sockaddr *)&sin, sizeof (sin)) < 0) { |
00cdc205 | 161 | syslog(LOG_ERR, "bind: %m"); |
de3b21e8 | 162 | exit(1); |
52b4fb0c | 163 | } |
7af17b3e SL |
164 | if (!configure(s)) |
165 | exit(1); | |
8a53982e | 166 | signal(SIGALRM, onalrm); |
52b4fb0c BJ |
167 | onalrm(); |
168 | for (;;) { | |
169 | struct whod wd; | |
7af17b3e | 170 | int cc, whod, len = sizeof (from); |
52b4fb0c | 171 | |
7af17b3e | 172 | cc = recvfrom(s, (char *)&wd, sizeof (struct whod), 0, |
0df908a9 | 173 | (struct sockaddr *)&from, &len); |
52b4fb0c BJ |
174 | if (cc <= 0) { |
175 | if (cc < 0 && errno != EINTR) | |
00cdc205 | 176 | syslog(LOG_WARNING, "recv: %m"); |
52b4fb0c BJ |
177 | continue; |
178 | } | |
a0f59ac1 | 179 | if (from.sin_port != sp->s_port) { |
00cdc205 | 180 | syslog(LOG_WARNING, "%d: bad from port", |
a0f59ac1 | 181 | ntohs(from.sin_port)); |
52b4fb0c BJ |
182 | continue; |
183 | } | |
aaddf8a1 SL |
184 | if (wd.wd_vers != WHODVERSION) |
185 | continue; | |
7af17b3e SL |
186 | if (wd.wd_type != WHODTYPE_STATUS) |
187 | continue; | |
a0f59ac1 | 188 | if (!verify(wd.wd_hostname)) { |
00cdc205 | 189 | syslog(LOG_WARNING, "malformed host name from %x", |
a0f59ac1 | 190 | from.sin_addr); |
52b4fb0c BJ |
191 | continue; |
192 | } | |
ac82a1ec | 193 | (void) sprintf(path, "whod.%s", wd.wd_hostname); |
0f2d5e68 MK |
194 | /* |
195 | * Rather than truncating and growing the file each time, | |
196 | * use ftruncate if size is less than previous size. | |
197 | */ | |
198 | whod = open(path, O_WRONLY | O_CREAT, 0644); | |
52b4fb0c | 199 | if (whod < 0) { |
00cdc205 | 200 | syslog(LOG_WARNING, "%s: %m", path); |
52b4fb0c BJ |
201 | continue; |
202 | } | |
b584098b | 203 | #if ENDIAN != BIG_ENDIAN |
fea387f0 | 204 | { |
9bd66dcf | 205 | int i, n = (cc - WHDRSIZE)/sizeof(struct whoent); |
fea387f0 SL |
206 | struct whoent *we; |
207 | ||
208 | /* undo header byte swapping before writing to file */ | |
209 | wd.wd_sendtime = ntohl(wd.wd_sendtime); | |
210 | for (i = 0; i < 3; i++) | |
211 | wd.wd_loadav[i] = ntohl(wd.wd_loadav[i]); | |
212 | wd.wd_boottime = ntohl(wd.wd_boottime); | |
213 | we = wd.wd_we; | |
214 | for (i = 0; i < n; i++) { | |
215 | we->we_idle = ntohl(we->we_idle); | |
1cccbcb3 SL |
216 | we->we_utmp.out_time = |
217 | ntohl(we->we_utmp.out_time); | |
fea387f0 SL |
218 | we++; |
219 | } | |
220 | } | |
221 | #endif | |
0df908a9 | 222 | (void) time((time_t *)&wd.wd_recvtime); |
52b4fb0c | 223 | (void) write(whod, (char *)&wd, cc); |
0f2d5e68 MK |
224 | if (fstat(whod, &st) < 0 || st.st_size > cc) |
225 | ftruncate(whod, cc); | |
52b4fb0c BJ |
226 | (void) close(whod); |
227 | } | |
228 | } | |
229 | ||
a0f59ac1 SL |
230 | /* |
231 | * Check out host name for unprintables | |
232 | * and other funnies before allowing a file | |
233 | * to be created. Sorry, but blanks aren't allowed. | |
234 | */ | |
235 | verify(name) | |
236 | register char *name; | |
237 | { | |
238 | register int size = 0; | |
239 | ||
240 | while (*name) { | |
77650176 | 241 | if (!isascii(*name) || !(isalnum(*name) || ispunct(*name))) |
a0f59ac1 SL |
242 | return (0); |
243 | name++, size++; | |
244 | } | |
245 | return (size > 0); | |
246 | } | |
247 | ||
52b4fb0c BJ |
248 | int utmptime; |
249 | int utmpent; | |
4c9b3acd JB |
250 | int utmpsize = 0; |
251 | struct utmp *utmp; | |
52b4fb0c BJ |
252 | int alarmcount; |
253 | ||
0df908a9 | 254 | void |
52b4fb0c BJ |
255 | onalrm() |
256 | { | |
17ccb086 KB |
257 | register struct neighbor *np; |
258 | register struct whoent *we = mywd.wd_we, *wlast; | |
52b4fb0c BJ |
259 | register int i; |
260 | struct stat stb; | |
52b4fb0c BJ |
261 | int cc; |
262 | double avenrun[3]; | |
17ccb086 KB |
263 | time_t now = time((time_t *)NULL); |
264 | char *strerror(); | |
52b4fb0c BJ |
265 | |
266 | if (alarmcount % 10 == 0) | |
267 | getkmem(); | |
268 | alarmcount++; | |
269 | (void) fstat(utmpf, &stb); | |
4c9b3acd | 270 | if ((stb.st_mtime != utmptime) || (stb.st_size > utmpsize)) { |
02d31241 | 271 | utmptime = stb.st_mtime; |
4c9b3acd JB |
272 | if (stb.st_size > utmpsize) { |
273 | utmpsize = stb.st_size + 10 * sizeof(struct utmp); | |
274 | if (utmp) | |
275 | utmp = (struct utmp *)realloc(utmp, utmpsize); | |
276 | else | |
277 | utmp = (struct utmp *)malloc(utmpsize); | |
278 | if (! utmp) { | |
279 | fprintf(stderr, "rwhod: malloc failed\n"); | |
280 | utmpsize = 0; | |
281 | goto done; | |
282 | } | |
283 | } | |
9bd66dcf | 284 | (void) lseek(utmpf, (long)0, L_SET); |
4c9b3acd | 285 | cc = read(utmpf, (char *)utmp, stb.st_size); |
52b4fb0c | 286 | if (cc < 0) { |
17ccb086 KB |
287 | fprintf(stderr, "rwhod: %s: %s\n", |
288 | _PATH_UTMP, strerror(errno)); | |
08d10f57 | 289 | goto done; |
52b4fb0c | 290 | } |
7af17b3e | 291 | wlast = &mywd.wd_we[1024 / sizeof (struct whoent) - 1]; |
52b4fb0c BJ |
292 | utmpent = cc / sizeof (struct utmp); |
293 | for (i = 0; i < utmpent; i++) | |
294 | if (utmp[i].ut_name[0]) { | |
b1456c48 SL |
295 | bcopy(utmp[i].ut_line, we->we_utmp.out_line, |
296 | sizeof (utmp[i].ut_line)); | |
297 | bcopy(utmp[i].ut_name, we->we_utmp.out_name, | |
298 | sizeof (utmp[i].ut_name)); | |
b1456c48 | 299 | we->we_utmp.out_time = htonl(utmp[i].ut_time); |
76886f32 SL |
300 | if (we >= wlast) |
301 | break; | |
52b4fb0c BJ |
302 | we++; |
303 | } | |
304 | utmpent = we - mywd.wd_we; | |
305 | } | |
221be169 KM |
306 | |
307 | /* | |
308 | * The test on utmpent looks silly---after all, if no one is | |
309 | * logged on, why worry about efficiency?---but is useful on | |
310 | * (e.g.) compute servers. | |
311 | */ | |
7abf8d65 KB |
312 | if (utmpent && chdir(_PATH_DEV)) { |
313 | syslog(LOG_ERR, "chdir(%s): %m", _PATH_DEV); | |
221be169 KM |
314 | exit(1); |
315 | } | |
52b4fb0c BJ |
316 | we = mywd.wd_we; |
317 | for (i = 0; i < utmpent; i++) { | |
221be169 | 318 | if (stat(we->we_utmp.out_line, &stb) >= 0) |
b1456c48 | 319 | we->we_idle = htonl(now - stb.st_atime); |
52b4fb0c BJ |
320 | we++; |
321 | } | |
4b8ee582 | 322 | (void) getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0])); |
52b4fb0c | 323 | for (i = 0; i < 3; i++) |
353c1281 | 324 | mywd.wd_loadav[i] = htonl((u_long)(avenrun[i] * 100)); |
b1456c48 | 325 | cc = (char *)we - (char *)&mywd; |
b1456c48 | 326 | mywd.wd_sendtime = htonl(time(0)); |
7af17b3e SL |
327 | mywd.wd_vers = WHODVERSION; |
328 | mywd.wd_type = WHODTYPE_STATUS; | |
329 | for (np = neighbors; np != NULL; np = np->n_next) | |
330 | (void) sendto(s, (char *)&mywd, cc, 0, | |
0df908a9 | 331 | (struct sockaddr *)np->n_addr, np->n_addrlen); |
17ccb086 KB |
332 | if (utmpent && chdir(_PATH_RWHODIR)) { |
333 | syslog(LOG_ERR, "chdir(%s): %m", _PATH_RWHODIR); | |
221be169 KM |
334 | exit(1); |
335 | } | |
08d10f57 | 336 | done: |
83361bb3 | 337 | (void) alarm(AL_INTERVAL); |
52b4fb0c BJ |
338 | } |
339 | ||
0df908a9 | 340 | void |
52b4fb0c BJ |
341 | getkmem() |
342 | { | |
07cac863 SL |
343 | static ino_t vmunixino; |
344 | static time_t vmunixctime; | |
345 | struct stat sb; | |
52b4fb0c | 346 | |
17ccb086 | 347 | if (stat(_PATH_UNIX, &sb) < 0) { |
07cac863 SL |
348 | if (vmunixctime) |
349 | return; | |
350 | } else { | |
351 | if (sb.st_ctime == vmunixctime && sb.st_ino == vmunixino) | |
352 | return; | |
353 | vmunixctime = sb.st_ctime; | |
354 | vmunixino= sb.st_ino; | |
355 | } | |
52b4fb0c BJ |
356 | if (kmemf >= 0) |
357 | (void) close(kmemf); | |
358 | loop: | |
17ccb086 KB |
359 | if (nlist(_PATH_UNIX, nl)) { |
360 | syslog(LOG_WARNING, "%s: namelist botch", _PATH_UNIX); | |
52b4fb0c BJ |
361 | sleep(300); |
362 | goto loop; | |
363 | } | |
17ccb086 | 364 | kmemf = open(_PATH_KMEM, O_RDONLY, 0); |
52b4fb0c | 365 | if (kmemf < 0) { |
17ccb086 | 366 | syslog(LOG_ERR, "%s: %m", _PATH_KMEM); |
00cdc205 | 367 | exit(1); |
52b4fb0c | 368 | } |
9bd66dcf SL |
369 | (void) lseek(kmemf, (long)nl[NL_BOOTTIME].n_value, L_SET); |
370 | (void) read(kmemf, (char *)&mywd.wd_boottime, | |
371 | sizeof (mywd.wd_boottime)); | |
b1456c48 | 372 | mywd.wd_boottime = htonl(mywd.wd_boottime); |
52b4fb0c | 373 | } |
7af17b3e SL |
374 | |
375 | /* | |
376 | * Figure out device configuration and select | |
377 | * networks which deserve status information. | |
378 | */ | |
379 | configure(s) | |
380 | int s; | |
381 | { | |
25a88e81 | 382 | char buf[BUFSIZ], *cp, *cplim; |
7af17b3e SL |
383 | struct ifconf ifc; |
384 | struct ifreq ifreq, *ifr; | |
7af17b3e SL |
385 | struct sockaddr_in *sin; |
386 | register struct neighbor *np; | |
387 | ||
388 | ifc.ifc_len = sizeof (buf); | |
389 | ifc.ifc_buf = buf; | |
390 | if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) { | |
00cdc205 | 391 | syslog(LOG_ERR, "ioctl (get interface configuration)"); |
7af17b3e SL |
392 | return (0); |
393 | } | |
394 | ifr = ifc.ifc_req; | |
d4a5bf04 | 395 | #ifdef AF_LINK |
25a88e81 KS |
396 | #define max(a, b) (a > b ? a : b) |
397 | #define size(p) max((p).sa_len, sizeof(p)) | |
398 | #else | |
399 | #define size(p) (sizeof (p)) | |
400 | #endif | |
401 | cplim = buf + ifc.ifc_len; /*skip over if's with big ifr_addr's */ | |
402 | for (cp = buf; cp < cplim; | |
403 | cp += sizeof (ifr->ifr_name) + size(ifr->ifr_addr)) { | |
404 | ifr = (struct ifreq *)cp; | |
7af17b3e SL |
405 | for (np = neighbors; np != NULL; np = np->n_next) |
406 | if (np->n_name && | |
407 | strcmp(ifr->ifr_name, np->n_name) == 0) | |
408 | break; | |
409 | if (np != NULL) | |
410 | continue; | |
411 | ifreq = *ifr; | |
412 | np = (struct neighbor *)malloc(sizeof (*np)); | |
413 | if (np == NULL) | |
414 | continue; | |
415 | np->n_name = malloc(strlen(ifr->ifr_name) + 1); | |
416 | if (np->n_name == NULL) { | |
417 | free((char *)np); | |
418 | continue; | |
419 | } | |
420 | strcpy(np->n_name, ifr->ifr_name); | |
421 | np->n_addrlen = sizeof (ifr->ifr_addr); | |
422 | np->n_addr = malloc(np->n_addrlen); | |
423 | if (np->n_addr == NULL) { | |
424 | free(np->n_name); | |
425 | free((char *)np); | |
426 | continue; | |
427 | } | |
428 | bcopy((char *)&ifr->ifr_addr, np->n_addr, np->n_addrlen); | |
429 | if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) { | |
00cdc205 | 430 | syslog(LOG_ERR, "ioctl (get interface flags)"); |
7af17b3e SL |
431 | free((char *)np); |
432 | continue; | |
433 | } | |
64b7ee70 MK |
434 | if ((ifreq.ifr_flags & IFF_UP) == 0 || |
435 | (ifreq.ifr_flags & (IFF_BROADCAST|IFF_POINTOPOINT)) == 0) { | |
7af17b3e SL |
436 | free((char *)np); |
437 | continue; | |
438 | } | |
439 | np->n_flags = ifreq.ifr_flags; | |
440 | if (np->n_flags & IFF_POINTOPOINT) { | |
441 | if (ioctl(s, SIOCGIFDSTADDR, (char *)&ifreq) < 0) { | |
00cdc205 | 442 | syslog(LOG_ERR, "ioctl (get dstaddr)"); |
7af17b3e SL |
443 | free((char *)np); |
444 | continue; | |
445 | } | |
446 | /* we assume addresses are all the same size */ | |
447 | bcopy((char *)&ifreq.ifr_dstaddr, | |
448 | np->n_addr, np->n_addrlen); | |
449 | } | |
450 | if (np->n_flags & IFF_BROADCAST) { | |
64b7ee70 MK |
451 | if (ioctl(s, SIOCGIFBRDADDR, (char *)&ifreq) < 0) { |
452 | syslog(LOG_ERR, "ioctl (get broadaddr)"); | |
453 | free((char *)np); | |
454 | continue; | |
455 | } | |
7af17b3e | 456 | /* we assume addresses are all the same size */ |
64b7ee70 MK |
457 | bcopy((char *)&ifreq.ifr_broadaddr, |
458 | np->n_addr, np->n_addrlen); | |
7af17b3e SL |
459 | } |
460 | /* gag, wish we could get rid of Internet dependencies */ | |
461 | sin = (struct sockaddr_in *)np->n_addr; | |
462 | sin->sin_port = sp->s_port; | |
463 | np->n_next = neighbors; | |
464 | neighbors = np; | |
465 | } | |
466 | return (1); | |
467 | } | |
b1456c48 SL |
468 | |
469 | #ifdef DEBUG | |
470 | sendto(s, buf, cc, flags, to, tolen) | |
471 | int s; | |
472 | char *buf; | |
473 | int cc, flags; | |
474 | char *to; | |
475 | int tolen; | |
476 | { | |
477 | register struct whod *w = (struct whod *)buf; | |
478 | register struct whoent *we; | |
479 | struct sockaddr_in *sin = (struct sockaddr_in *)to; | |
480 | char *interval(); | |
481 | ||
482 | printf("sendto %x.%d\n", ntohl(sin->sin_addr), ntohs(sin->sin_port)); | |
483 | printf("hostname %s %s\n", w->wd_hostname, | |
9bd66dcf | 484 | interval(ntohl(w->wd_sendtime) - ntohl(w->wd_boottime), " up")); |
b1456c48 | 485 | printf("load %4.2f, %4.2f, %4.2f\n", |
9bd66dcf SL |
486 | ntohl(w->wd_loadav[0]) / 100.0, ntohl(w->wd_loadav[1]) / 100.0, |
487 | ntohl(w->wd_loadav[2]) / 100.0); | |
b1456c48 SL |
488 | cc -= WHDRSIZE; |
489 | for (we = w->wd_we, cc /= sizeof (struct whoent); cc > 0; cc--, we++) { | |
9bd66dcf | 490 | time_t t = ntohl(we->we_utmp.out_time); |
b1456c48 | 491 | printf("%-8.8s %s:%s %.12s", |
9bd66dcf SL |
492 | we->we_utmp.out_name, |
493 | w->wd_hostname, we->we_utmp.out_line, | |
494 | ctime(&t)+4); | |
495 | we->we_idle = ntohl(we->we_idle) / 60; | |
b1456c48 SL |
496 | if (we->we_idle) { |
497 | if (we->we_idle >= 100*60) | |
498 | we->we_idle = 100*60 - 1; | |
499 | if (we->we_idle >= 60) | |
500 | printf(" %2d", we->we_idle / 60); | |
501 | else | |
502 | printf(" "); | |
503 | printf(":%02d", we->we_idle % 60); | |
504 | } | |
505 | printf("\n"); | |
506 | } | |
507 | } | |
508 | ||
509 | char * | |
510 | interval(time, updown) | |
511 | int time; | |
512 | char *updown; | |
513 | { | |
514 | static char resbuf[32]; | |
515 | int days, hours, minutes; | |
516 | ||
517 | if (time < 0 || time > 3*30*24*60*60) { | |
518 | (void) sprintf(resbuf, " %s ??:??", updown); | |
519 | return (resbuf); | |
520 | } | |
521 | minutes = (time + 59) / 60; /* round to minutes */ | |
522 | hours = minutes / 60; minutes %= 60; | |
523 | days = hours / 24; hours %= 24; | |
524 | if (days) | |
525 | (void) sprintf(resbuf, "%s %2d+%02d:%02d", | |
526 | updown, days, hours, minutes); | |
527 | else | |
528 | (void) sprintf(resbuf, "%s %2d:%02d", | |
529 | updown, hours, minutes); | |
530 | return (resbuf); | |
531 | } | |
532 | #endif |