Commit | Line | Data |
---|---|---|
3b86b0f6 | 1 | /* |
86f08f99 KB |
2 | * Copyright (c) 1983 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
417f7a11 | 5 | * %sccs.include.redist.c% |
3b86b0f6 DF |
6 | */ |
7 | ||
8 | #ifndef lint | |
9 | char copyright[] = | |
86f08f99 | 10 | "@(#) Copyright (c) 1983 The Regents of the University of California.\n\ |
3b86b0f6 | 11 | All rights reserved.\n"; |
86f08f99 | 12 | #endif /* not lint */ |
3b86b0f6 | 13 | |
52b4fb0c | 14 | #ifndef lint |
0df908a9 | 15 | static char sccsid[] = "@(#)rwhod.c 5.20 (Berkeley) %G%"; |
86f08f99 | 16 | #endif /* not lint */ |
52b4fb0c | 17 | |
b584098b | 18 | #include <sys/param.h> |
52b4fb0c | 19 | #include <sys/socket.h> |
52b4fb0c | 20 | #include <sys/stat.h> |
17ccb086 | 21 | #include <sys/signal.h> |
52b4fb0c | 22 | #include <sys/ioctl.h> |
9bd66dcf | 23 | #include <sys/file.h> |
de3b21e8 | 24 | |
7af17b3e | 25 | #include <net/if.h> |
de3b21e8 SL |
26 | #include <netinet/in.h> |
27 | ||
28 | #include <nlist.h> | |
de3b21e8 SL |
29 | #include <errno.h> |
30 | #include <utmp.h> | |
a0f59ac1 SL |
31 | #include <ctype.h> |
32 | #include <netdb.h> | |
00cdc205 | 33 | #include <syslog.h> |
3c13756b | 34 | #include <protocols/rwhod.h> |
17ccb086 | 35 | #include <stdio.h> |
7abf8d65 | 36 | #include <paths.h> |
de3b21e8 | 37 | |
83361bb3 RC |
38 | /* |
39 | * Alarm interval. Don't forget to change the down time check in ruptime | |
40 | * if this is changed. | |
41 | */ | |
00cdc205 | 42 | #define AL_INTERVAL (3 * 60) |
83361bb3 | 43 | |
b584098b | 44 | struct sockaddr_in sin; |
52b4fb0c | 45 | |
b584098b | 46 | char myname[MAXHOSTNAMELEN]; |
52b4fb0c BJ |
47 | |
48 | struct nlist nl[] = { | |
4b8ee582 | 49 | #define NL_BOOTTIME 0 |
de3b21e8 | 50 | { "_boottime" }, |
52b4fb0c BJ |
51 | 0 |
52 | }; | |
53 | ||
7af17b3e SL |
54 | /* |
55 | * We communicate with each neighbor in | |
56 | * a list constructed at the time we're | |
57 | * started up. Neighbors are currently | |
58 | * directly connected via a hardware interface. | |
59 | */ | |
60 | struct neighbor { | |
61 | struct neighbor *n_next; | |
62 | char *n_name; /* interface name */ | |
63 | char *n_addr; /* who to send to */ | |
64 | int n_addrlen; /* size of address */ | |
65 | int n_flags; /* should forward?, interface flags */ | |
66 | }; | |
67 | ||
68 | struct neighbor *neighbors; | |
52b4fb0c | 69 | struct whod mywd; |
7af17b3e | 70 | struct servent *sp; |
52b4fb0c BJ |
71 | int s, utmpf, kmemf = -1; |
72 | ||
7af17b3e | 73 | #define WHDRSIZE (sizeof (mywd) - sizeof (mywd.wd_we)) |
fea387f0 | 74 | |
17ccb086 | 75 | extern int errno; |
9bd38ba8 | 76 | char *strcpy(), *malloc(); |
52b4fb0c | 77 | long lseek(); |
0df908a9 | 78 | void getkmem(), onalrm(); |
7af17b3e | 79 | struct in_addr inet_makeaddr(); |
52b4fb0c BJ |
80 | |
81 | main() | |
82 | { | |
83 | struct sockaddr_in from; | |
0f2d5e68 | 84 | struct stat st; |
52b4fb0c | 85 | char path[64]; |
221be169 | 86 | int on = 1; |
17ccb086 | 87 | char *cp, *index(), *strerror(); |
52b4fb0c | 88 | |
00cdc205 RC |
89 | if (getuid()) { |
90 | fprintf(stderr, "rwhod: not super user\n"); | |
91 | exit(1); | |
92 | } | |
a0f59ac1 SL |
93 | sp = getservbyname("who", "udp"); |
94 | if (sp == 0) { | |
95 | fprintf(stderr, "rwhod: udp/who: unknown service\n"); | |
96 | exit(1); | |
97 | } | |
52b4fb0c | 98 | #ifndef DEBUG |
afe907a4 | 99 | daemon(1, 0); |
52b4fb0c | 100 | #endif |
17ccb086 KB |
101 | if (chdir(_PATH_RWHODIR) < 0) { |
102 | (void)fprintf(stderr, "rwhod: %s: %s\n", | |
103 | _PATH_RWHODIR, strerror(errno)); | |
ac82a1ec KM |
104 | exit(1); |
105 | } | |
52b4fb0c | 106 | (void) signal(SIGHUP, getkmem); |
076ae92c | 107 | openlog("rwhod", LOG_PID, LOG_DAEMON); |
7af17b3e SL |
108 | /* |
109 | * Establish host name as returned by system. | |
110 | */ | |
111 | if (gethostname(myname, sizeof (myname) - 1) < 0) { | |
00cdc205 | 112 | syslog(LOG_ERR, "gethostname: %m"); |
52b4fb0c BJ |
113 | exit(1); |
114 | } | |
d2444544 JB |
115 | if ((cp = index(myname, '.')) != NULL) |
116 | *cp = '\0'; | |
7af17b3e | 117 | strncpy(mywd.wd_hostname, myname, sizeof (myname) - 1); |
17ccb086 | 118 | utmpf = open(_PATH_UTMP, O_RDONLY|O_CREAT, 0644); |
52b4fb0c | 119 | if (utmpf < 0) { |
17ccb086 | 120 | syslog(LOG_ERR, "%s: %m", _PATH_UTMP); |
52b4fb0c BJ |
121 | exit(1); |
122 | } | |
123 | getkmem(); | |
9bd66dcf | 124 | if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { |
00cdc205 | 125 | syslog(LOG_ERR, "socket: %m"); |
de3b21e8 SL |
126 | exit(1); |
127 | } | |
3de1986a | 128 | if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &on, sizeof (on)) < 0) { |
b0e1e5f3 MK |
129 | syslog(LOG_ERR, "setsockopt SO_BROADCAST: %m"); |
130 | exit(1); | |
131 | } | |
b584098b | 132 | sin.sin_family = AF_INET; |
7af17b3e | 133 | sin.sin_port = sp->s_port; |
0df908a9 | 134 | if (bind(s, (struct sockaddr *)&sin, sizeof (sin)) < 0) { |
00cdc205 | 135 | syslog(LOG_ERR, "bind: %m"); |
de3b21e8 | 136 | exit(1); |
52b4fb0c | 137 | } |
7af17b3e SL |
138 | if (!configure(s)) |
139 | exit(1); | |
8a53982e | 140 | signal(SIGALRM, onalrm); |
52b4fb0c BJ |
141 | onalrm(); |
142 | for (;;) { | |
143 | struct whod wd; | |
7af17b3e | 144 | int cc, whod, len = sizeof (from); |
52b4fb0c | 145 | |
7af17b3e | 146 | cc = recvfrom(s, (char *)&wd, sizeof (struct whod), 0, |
0df908a9 | 147 | (struct sockaddr *)&from, &len); |
52b4fb0c BJ |
148 | if (cc <= 0) { |
149 | if (cc < 0 && errno != EINTR) | |
00cdc205 | 150 | syslog(LOG_WARNING, "recv: %m"); |
52b4fb0c BJ |
151 | continue; |
152 | } | |
a0f59ac1 | 153 | if (from.sin_port != sp->s_port) { |
00cdc205 | 154 | syslog(LOG_WARNING, "%d: bad from port", |
a0f59ac1 | 155 | ntohs(from.sin_port)); |
52b4fb0c BJ |
156 | continue; |
157 | } | |
aaddf8a1 SL |
158 | if (wd.wd_vers != WHODVERSION) |
159 | continue; | |
7af17b3e SL |
160 | if (wd.wd_type != WHODTYPE_STATUS) |
161 | continue; | |
a0f59ac1 | 162 | if (!verify(wd.wd_hostname)) { |
00cdc205 | 163 | syslog(LOG_WARNING, "malformed host name from %x", |
a0f59ac1 | 164 | from.sin_addr); |
52b4fb0c BJ |
165 | continue; |
166 | } | |
ac82a1ec | 167 | (void) sprintf(path, "whod.%s", wd.wd_hostname); |
0f2d5e68 MK |
168 | /* |
169 | * Rather than truncating and growing the file each time, | |
170 | * use ftruncate if size is less than previous size. | |
171 | */ | |
172 | whod = open(path, O_WRONLY | O_CREAT, 0644); | |
52b4fb0c | 173 | if (whod < 0) { |
00cdc205 | 174 | syslog(LOG_WARNING, "%s: %m", path); |
52b4fb0c BJ |
175 | continue; |
176 | } | |
b584098b | 177 | #if ENDIAN != BIG_ENDIAN |
fea387f0 | 178 | { |
9bd66dcf | 179 | int i, n = (cc - WHDRSIZE)/sizeof(struct whoent); |
fea387f0 SL |
180 | struct whoent *we; |
181 | ||
182 | /* undo header byte swapping before writing to file */ | |
183 | wd.wd_sendtime = ntohl(wd.wd_sendtime); | |
184 | for (i = 0; i < 3; i++) | |
185 | wd.wd_loadav[i] = ntohl(wd.wd_loadav[i]); | |
186 | wd.wd_boottime = ntohl(wd.wd_boottime); | |
187 | we = wd.wd_we; | |
188 | for (i = 0; i < n; i++) { | |
189 | we->we_idle = ntohl(we->we_idle); | |
1cccbcb3 SL |
190 | we->we_utmp.out_time = |
191 | ntohl(we->we_utmp.out_time); | |
fea387f0 SL |
192 | we++; |
193 | } | |
194 | } | |
195 | #endif | |
0df908a9 | 196 | (void) time((time_t *)&wd.wd_recvtime); |
52b4fb0c | 197 | (void) write(whod, (char *)&wd, cc); |
0f2d5e68 MK |
198 | if (fstat(whod, &st) < 0 || st.st_size > cc) |
199 | ftruncate(whod, cc); | |
52b4fb0c BJ |
200 | (void) close(whod); |
201 | } | |
202 | } | |
203 | ||
a0f59ac1 SL |
204 | /* |
205 | * Check out host name for unprintables | |
206 | * and other funnies before allowing a file | |
207 | * to be created. Sorry, but blanks aren't allowed. | |
208 | */ | |
209 | verify(name) | |
210 | register char *name; | |
211 | { | |
212 | register int size = 0; | |
213 | ||
214 | while (*name) { | |
77650176 | 215 | if (!isascii(*name) || !(isalnum(*name) || ispunct(*name))) |
a0f59ac1 SL |
216 | return (0); |
217 | name++, size++; | |
218 | } | |
219 | return (size > 0); | |
220 | } | |
221 | ||
52b4fb0c BJ |
222 | int utmptime; |
223 | int utmpent; | |
4c9b3acd JB |
224 | int utmpsize = 0; |
225 | struct utmp *utmp; | |
52b4fb0c BJ |
226 | int alarmcount; |
227 | ||
0df908a9 | 228 | void |
52b4fb0c BJ |
229 | onalrm() |
230 | { | |
17ccb086 KB |
231 | register struct neighbor *np; |
232 | register struct whoent *we = mywd.wd_we, *wlast; | |
52b4fb0c BJ |
233 | register int i; |
234 | struct stat stb; | |
52b4fb0c BJ |
235 | int cc; |
236 | double avenrun[3]; | |
17ccb086 KB |
237 | time_t now = time((time_t *)NULL); |
238 | char *strerror(); | |
52b4fb0c BJ |
239 | |
240 | if (alarmcount % 10 == 0) | |
241 | getkmem(); | |
242 | alarmcount++; | |
243 | (void) fstat(utmpf, &stb); | |
4c9b3acd | 244 | if ((stb.st_mtime != utmptime) || (stb.st_size > utmpsize)) { |
02d31241 | 245 | utmptime = stb.st_mtime; |
4c9b3acd JB |
246 | if (stb.st_size > utmpsize) { |
247 | utmpsize = stb.st_size + 10 * sizeof(struct utmp); | |
248 | if (utmp) | |
249 | utmp = (struct utmp *)realloc(utmp, utmpsize); | |
250 | else | |
251 | utmp = (struct utmp *)malloc(utmpsize); | |
252 | if (! utmp) { | |
253 | fprintf(stderr, "rwhod: malloc failed\n"); | |
254 | utmpsize = 0; | |
255 | goto done; | |
256 | } | |
257 | } | |
9bd66dcf | 258 | (void) lseek(utmpf, (long)0, L_SET); |
4c9b3acd | 259 | cc = read(utmpf, (char *)utmp, stb.st_size); |
52b4fb0c | 260 | if (cc < 0) { |
17ccb086 KB |
261 | fprintf(stderr, "rwhod: %s: %s\n", |
262 | _PATH_UTMP, strerror(errno)); | |
08d10f57 | 263 | goto done; |
52b4fb0c | 264 | } |
7af17b3e | 265 | wlast = &mywd.wd_we[1024 / sizeof (struct whoent) - 1]; |
52b4fb0c BJ |
266 | utmpent = cc / sizeof (struct utmp); |
267 | for (i = 0; i < utmpent; i++) | |
268 | if (utmp[i].ut_name[0]) { | |
b1456c48 SL |
269 | bcopy(utmp[i].ut_line, we->we_utmp.out_line, |
270 | sizeof (utmp[i].ut_line)); | |
271 | bcopy(utmp[i].ut_name, we->we_utmp.out_name, | |
272 | sizeof (utmp[i].ut_name)); | |
b1456c48 | 273 | we->we_utmp.out_time = htonl(utmp[i].ut_time); |
76886f32 SL |
274 | if (we >= wlast) |
275 | break; | |
52b4fb0c BJ |
276 | we++; |
277 | } | |
278 | utmpent = we - mywd.wd_we; | |
279 | } | |
221be169 KM |
280 | |
281 | /* | |
282 | * The test on utmpent looks silly---after all, if no one is | |
283 | * logged on, why worry about efficiency?---but is useful on | |
284 | * (e.g.) compute servers. | |
285 | */ | |
7abf8d65 KB |
286 | if (utmpent && chdir(_PATH_DEV)) { |
287 | syslog(LOG_ERR, "chdir(%s): %m", _PATH_DEV); | |
221be169 KM |
288 | exit(1); |
289 | } | |
52b4fb0c BJ |
290 | we = mywd.wd_we; |
291 | for (i = 0; i < utmpent; i++) { | |
221be169 | 292 | if (stat(we->we_utmp.out_line, &stb) >= 0) |
b1456c48 | 293 | we->we_idle = htonl(now - stb.st_atime); |
52b4fb0c BJ |
294 | we++; |
295 | } | |
4b8ee582 | 296 | (void) getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0])); |
52b4fb0c | 297 | for (i = 0; i < 3; i++) |
353c1281 | 298 | mywd.wd_loadav[i] = htonl((u_long)(avenrun[i] * 100)); |
b1456c48 | 299 | cc = (char *)we - (char *)&mywd; |
b1456c48 | 300 | mywd.wd_sendtime = htonl(time(0)); |
7af17b3e SL |
301 | mywd.wd_vers = WHODVERSION; |
302 | mywd.wd_type = WHODTYPE_STATUS; | |
303 | for (np = neighbors; np != NULL; np = np->n_next) | |
304 | (void) sendto(s, (char *)&mywd, cc, 0, | |
0df908a9 | 305 | (struct sockaddr *)np->n_addr, np->n_addrlen); |
17ccb086 KB |
306 | if (utmpent && chdir(_PATH_RWHODIR)) { |
307 | syslog(LOG_ERR, "chdir(%s): %m", _PATH_RWHODIR); | |
221be169 KM |
308 | exit(1); |
309 | } | |
08d10f57 | 310 | done: |
83361bb3 | 311 | (void) alarm(AL_INTERVAL); |
52b4fb0c BJ |
312 | } |
313 | ||
0df908a9 | 314 | void |
52b4fb0c BJ |
315 | getkmem() |
316 | { | |
07cac863 SL |
317 | static ino_t vmunixino; |
318 | static time_t vmunixctime; | |
319 | struct stat sb; | |
52b4fb0c | 320 | |
17ccb086 | 321 | if (stat(_PATH_UNIX, &sb) < 0) { |
07cac863 SL |
322 | if (vmunixctime) |
323 | return; | |
324 | } else { | |
325 | if (sb.st_ctime == vmunixctime && sb.st_ino == vmunixino) | |
326 | return; | |
327 | vmunixctime = sb.st_ctime; | |
328 | vmunixino= sb.st_ino; | |
329 | } | |
52b4fb0c BJ |
330 | if (kmemf >= 0) |
331 | (void) close(kmemf); | |
332 | loop: | |
17ccb086 KB |
333 | if (nlist(_PATH_UNIX, nl)) { |
334 | syslog(LOG_WARNING, "%s: namelist botch", _PATH_UNIX); | |
52b4fb0c BJ |
335 | sleep(300); |
336 | goto loop; | |
337 | } | |
17ccb086 | 338 | kmemf = open(_PATH_KMEM, O_RDONLY, 0); |
52b4fb0c | 339 | if (kmemf < 0) { |
17ccb086 | 340 | syslog(LOG_ERR, "%s: %m", _PATH_KMEM); |
00cdc205 | 341 | exit(1); |
52b4fb0c | 342 | } |
9bd66dcf SL |
343 | (void) lseek(kmemf, (long)nl[NL_BOOTTIME].n_value, L_SET); |
344 | (void) read(kmemf, (char *)&mywd.wd_boottime, | |
345 | sizeof (mywd.wd_boottime)); | |
b1456c48 | 346 | mywd.wd_boottime = htonl(mywd.wd_boottime); |
52b4fb0c | 347 | } |
7af17b3e SL |
348 | |
349 | /* | |
350 | * Figure out device configuration and select | |
351 | * networks which deserve status information. | |
352 | */ | |
353 | configure(s) | |
354 | int s; | |
355 | { | |
25a88e81 | 356 | char buf[BUFSIZ], *cp, *cplim; |
7af17b3e SL |
357 | struct ifconf ifc; |
358 | struct ifreq ifreq, *ifr; | |
7af17b3e SL |
359 | struct sockaddr_in *sin; |
360 | register struct neighbor *np; | |
361 | ||
362 | ifc.ifc_len = sizeof (buf); | |
363 | ifc.ifc_buf = buf; | |
364 | if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) { | |
00cdc205 | 365 | syslog(LOG_ERR, "ioctl (get interface configuration)"); |
7af17b3e SL |
366 | return (0); |
367 | } | |
368 | ifr = ifc.ifc_req; | |
d4a5bf04 | 369 | #ifdef AF_LINK |
25a88e81 KS |
370 | #define max(a, b) (a > b ? a : b) |
371 | #define size(p) max((p).sa_len, sizeof(p)) | |
372 | #else | |
373 | #define size(p) (sizeof (p)) | |
374 | #endif | |
375 | cplim = buf + ifc.ifc_len; /*skip over if's with big ifr_addr's */ | |
376 | for (cp = buf; cp < cplim; | |
377 | cp += sizeof (ifr->ifr_name) + size(ifr->ifr_addr)) { | |
378 | ifr = (struct ifreq *)cp; | |
7af17b3e SL |
379 | for (np = neighbors; np != NULL; np = np->n_next) |
380 | if (np->n_name && | |
381 | strcmp(ifr->ifr_name, np->n_name) == 0) | |
382 | break; | |
383 | if (np != NULL) | |
384 | continue; | |
385 | ifreq = *ifr; | |
386 | np = (struct neighbor *)malloc(sizeof (*np)); | |
387 | if (np == NULL) | |
388 | continue; | |
389 | np->n_name = malloc(strlen(ifr->ifr_name) + 1); | |
390 | if (np->n_name == NULL) { | |
391 | free((char *)np); | |
392 | continue; | |
393 | } | |
394 | strcpy(np->n_name, ifr->ifr_name); | |
395 | np->n_addrlen = sizeof (ifr->ifr_addr); | |
396 | np->n_addr = malloc(np->n_addrlen); | |
397 | if (np->n_addr == NULL) { | |
398 | free(np->n_name); | |
399 | free((char *)np); | |
400 | continue; | |
401 | } | |
402 | bcopy((char *)&ifr->ifr_addr, np->n_addr, np->n_addrlen); | |
403 | if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) { | |
00cdc205 | 404 | syslog(LOG_ERR, "ioctl (get interface flags)"); |
7af17b3e SL |
405 | free((char *)np); |
406 | continue; | |
407 | } | |
64b7ee70 MK |
408 | if ((ifreq.ifr_flags & IFF_UP) == 0 || |
409 | (ifreq.ifr_flags & (IFF_BROADCAST|IFF_POINTOPOINT)) == 0) { | |
7af17b3e SL |
410 | free((char *)np); |
411 | continue; | |
412 | } | |
413 | np->n_flags = ifreq.ifr_flags; | |
414 | if (np->n_flags & IFF_POINTOPOINT) { | |
415 | if (ioctl(s, SIOCGIFDSTADDR, (char *)&ifreq) < 0) { | |
00cdc205 | 416 | syslog(LOG_ERR, "ioctl (get dstaddr)"); |
7af17b3e SL |
417 | free((char *)np); |
418 | continue; | |
419 | } | |
420 | /* we assume addresses are all the same size */ | |
421 | bcopy((char *)&ifreq.ifr_dstaddr, | |
422 | np->n_addr, np->n_addrlen); | |
423 | } | |
424 | if (np->n_flags & IFF_BROADCAST) { | |
64b7ee70 MK |
425 | if (ioctl(s, SIOCGIFBRDADDR, (char *)&ifreq) < 0) { |
426 | syslog(LOG_ERR, "ioctl (get broadaddr)"); | |
427 | free((char *)np); | |
428 | continue; | |
429 | } | |
7af17b3e | 430 | /* we assume addresses are all the same size */ |
64b7ee70 MK |
431 | bcopy((char *)&ifreq.ifr_broadaddr, |
432 | np->n_addr, np->n_addrlen); | |
7af17b3e SL |
433 | } |
434 | /* gag, wish we could get rid of Internet dependencies */ | |
435 | sin = (struct sockaddr_in *)np->n_addr; | |
436 | sin->sin_port = sp->s_port; | |
437 | np->n_next = neighbors; | |
438 | neighbors = np; | |
439 | } | |
440 | return (1); | |
441 | } | |
b1456c48 SL |
442 | |
443 | #ifdef DEBUG | |
444 | sendto(s, buf, cc, flags, to, tolen) | |
445 | int s; | |
446 | char *buf; | |
447 | int cc, flags; | |
448 | char *to; | |
449 | int tolen; | |
450 | { | |
451 | register struct whod *w = (struct whod *)buf; | |
452 | register struct whoent *we; | |
453 | struct sockaddr_in *sin = (struct sockaddr_in *)to; | |
454 | char *interval(); | |
455 | ||
456 | printf("sendto %x.%d\n", ntohl(sin->sin_addr), ntohs(sin->sin_port)); | |
457 | printf("hostname %s %s\n", w->wd_hostname, | |
9bd66dcf | 458 | interval(ntohl(w->wd_sendtime) - ntohl(w->wd_boottime), " up")); |
b1456c48 | 459 | printf("load %4.2f, %4.2f, %4.2f\n", |
9bd66dcf SL |
460 | ntohl(w->wd_loadav[0]) / 100.0, ntohl(w->wd_loadav[1]) / 100.0, |
461 | ntohl(w->wd_loadav[2]) / 100.0); | |
b1456c48 SL |
462 | cc -= WHDRSIZE; |
463 | for (we = w->wd_we, cc /= sizeof (struct whoent); cc > 0; cc--, we++) { | |
9bd66dcf | 464 | time_t t = ntohl(we->we_utmp.out_time); |
b1456c48 | 465 | printf("%-8.8s %s:%s %.12s", |
9bd66dcf SL |
466 | we->we_utmp.out_name, |
467 | w->wd_hostname, we->we_utmp.out_line, | |
468 | ctime(&t)+4); | |
469 | we->we_idle = ntohl(we->we_idle) / 60; | |
b1456c48 SL |
470 | if (we->we_idle) { |
471 | if (we->we_idle >= 100*60) | |
472 | we->we_idle = 100*60 - 1; | |
473 | if (we->we_idle >= 60) | |
474 | printf(" %2d", we->we_idle / 60); | |
475 | else | |
476 | printf(" "); | |
477 | printf(":%02d", we->we_idle % 60); | |
478 | } | |
479 | printf("\n"); | |
480 | } | |
481 | } | |
482 | ||
483 | char * | |
484 | interval(time, updown) | |
485 | int time; | |
486 | char *updown; | |
487 | { | |
488 | static char resbuf[32]; | |
489 | int days, hours, minutes; | |
490 | ||
491 | if (time < 0 || time > 3*30*24*60*60) { | |
492 | (void) sprintf(resbuf, " %s ??:??", updown); | |
493 | return (resbuf); | |
494 | } | |
495 | minutes = (time + 59) / 60; /* round to minutes */ | |
496 | hours = minutes / 60; minutes %= 60; | |
497 | days = hours / 24; hours %= 24; | |
498 | if (days) | |
499 | (void) sprintf(resbuf, "%s %2d+%02d:%02d", | |
500 | updown, days, hours, minutes); | |
501 | else | |
502 | (void) sprintf(resbuf, "%s %2d:%02d", | |
503 | updown, hours, minutes); | |
504 | return (resbuf); | |
505 | } | |
506 | #endif |