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94e891ea | 1 | |
30a4f2a8 | 2 | /* |
94e891ea | 3 | * $Id: tools.cc,v 1.44 1996/07/15 23:48:38 wessels Exp $ |
30a4f2a8 | 4 | * |
5 | * DEBUG: section 21 Misc Functions | |
6 | * AUTHOR: Harvest Derived | |
7 | * | |
8 | * SQUID Internet Object Cache http://www.nlanr.net/Squid/ | |
9 | * -------------------------------------------------------- | |
10 | * | |
11 | * Squid is the result of efforts by numerous individuals from the | |
12 | * Internet community. Development is led by Duane Wessels of the | |
13 | * National Laboratory for Applied Network Research and funded by | |
14 | * the National Science Foundation. | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
29 | * | |
30 | */ | |
019dd986 | 31 | |
32 | /* | |
30a4f2a8 | 33 | * Copyright (c) 1994, 1995. All rights reserved. |
34 | * | |
35 | * The Harvest software was developed by the Internet Research Task | |
36 | * Force Research Group on Resource Discovery (IRTF-RD): | |
37 | * | |
38 | * Mic Bowman of Transarc Corporation. | |
39 | * Peter Danzig of the University of Southern California. | |
40 | * Darren R. Hardy of the University of Colorado at Boulder. | |
41 | * Udi Manber of the University of Arizona. | |
42 | * Michael F. Schwartz of the University of Colorado at Boulder. | |
43 | * Duane Wessels of the University of Colorado at Boulder. | |
44 | * | |
45 | * This copyright notice applies to software in the Harvest | |
46 | * ``src/'' directory only. Users should consult the individual | |
47 | * copyright notices in the ``components/'' subdirectories for | |
48 | * copyright information about other software bundled with the | |
49 | * Harvest source code distribution. | |
50 | * | |
51 | * TERMS OF USE | |
52 | * | |
53 | * The Harvest software may be used and re-distributed without | |
54 | * charge, provided that the software origin and research team are | |
55 | * cited in any use of the system. Most commonly this is | |
56 | * accomplished by including a link to the Harvest Home Page | |
57 | * (http://harvest.cs.colorado.edu/) from the query page of any | |
58 | * Broker you deploy, as well as in the query result pages. These | |
59 | * links are generated automatically by the standard Broker | |
60 | * software distribution. | |
61 | * | |
62 | * The Harvest software is provided ``as is'', without express or | |
63 | * implied warranty, and with no support nor obligation to assist | |
64 | * in its use, correction, modification or enhancement. We assume | |
65 | * no liability with respect to the infringement of copyrights, | |
66 | * trade secrets, or any patents, and are not responsible for | |
67 | * consequential damages. Proper use of the Harvest software is | |
68 | * entirely the responsibility of the user. | |
69 | * | |
70 | * DERIVATIVE WORKS | |
71 | * | |
72 | * Users may make derivative works from the Harvest software, subject | |
73 | * to the following constraints: | |
74 | * | |
75 | * - You must include the above copyright notice and these | |
76 | * accompanying paragraphs in all forms of derivative works, | |
77 | * and any documentation and other materials related to such | |
78 | * distribution and use acknowledge that the software was | |
79 | * developed at the above institutions. | |
80 | * | |
81 | * - You must notify IRTF-RD regarding your distribution of | |
82 | * the derivative work. | |
83 | * | |
84 | * - You must clearly notify users that your are distributing | |
85 | * a modified version and not the original Harvest software. | |
86 | * | |
87 | * - Any derivative product is also subject to these copyright | |
88 | * and use restrictions. | |
89 | * | |
90 | * Note that the Harvest software is NOT in the public domain. We | |
91 | * retain copyright, as specified above. | |
92 | * | |
93 | * HISTORY OF FREE SOFTWARE STATUS | |
94 | * | |
95 | * Originally we required sites to license the software in cases | |
96 | * where they were going to build commercial products/services | |
97 | * around Harvest. In June 1995 we changed this policy. We now | |
98 | * allow people to use the core Harvest software (the code found in | |
99 | * the Harvest ``src/'' directory) for free. We made this change | |
100 | * in the interest of encouraging the widest possible deployment of | |
101 | * the technology. The Harvest software is really a reference | |
102 | * implementation of a set of protocols and formats, some of which | |
103 | * we intend to standardize. We encourage commercial | |
104 | * re-implementations of code complying to this set of standards. | |
019dd986 | 105 | */ |
44a47c6e | 106 | |
107 | #include "squid.h" | |
108 | ||
090089c4 | 109 | int do_mallinfo = 0; /* don't do mallinfo() unless this gets set */ |
b8de7ebe | 110 | time_t squid_curtime; |
3a57089e | 111 | struct timeval current_time; |
090089c4 | 112 | |
090089c4 | 113 | #define DEAD_MSG "\ |
c5c666ab | 114 | The Squid Cache (version %s) died.\n\ |
090089c4 | 115 | \n\ |
c5c666ab | 116 | You've encountered a fatal error in the Squid Cache version %s.\n\ |
090089c4 | 117 | If a core file was created (possibly in the swap directory),\n\ |
b8de7ebe | 118 | please execute 'gdb squid core' or 'dbx squid core', then type 'where',\n\ |
234967c9 | 119 | and report the trace back to squid-bugs@nlanr.net.\n\ |
090089c4 | 120 | \n\ |
121 | Thanks!\n" | |
122 | ||
123 | static char *dead_msg() | |
124 | { | |
125 | static char msg[1024]; | |
8213067d | 126 | sprintf(msg, DEAD_MSG, version_string, version_string); |
090089c4 | 127 | return msg; |
128 | } | |
129 | ||
130 | void mail_warranty() | |
131 | { | |
019dd986 | 132 | FILE *fp = NULL; |
090089c4 | 133 | static char filename[256]; |
134 | static char command[256]; | |
135 | ||
136 | sprintf(filename, "/tmp/mailin%d", (int) getpid()); | |
137 | fp = fopen(filename, "w"); | |
138 | if (fp != NULL) { | |
b8de7ebe | 139 | fprintf(fp, "From: %s\n", appname); |
090089c4 | 140 | fprintf(fp, "To: %s\n", getAdminEmail()); |
141 | fprintf(fp, "Subject: %s\n", dead_msg()); | |
142 | fclose(fp); | |
090089c4 | 143 | sprintf(command, "mail %s < %s", getAdminEmail(), filename); |
f0f81709 | 144 | system(command); /* XXX should avoid system(3) */ |
090089c4 | 145 | unlink(filename); |
146 | } | |
147 | } | |
148 | ||
149 | void print_warranty() | |
150 | { | |
151 | if (getAdminEmail()) | |
152 | mail_warranty(); | |
153 | else | |
154 | puts(dead_msg()); | |
155 | } | |
156 | ||
3f43b19b | 157 | |
158 | static void dumpMallocStats(f) | |
159 | FILE *f; | |
160 | { | |
161 | #if HAVE_MALLINFO | |
162 | struct mallinfo mp; | |
30a4f2a8 | 163 | int t; |
3f43b19b | 164 | if (!do_mallinfo) |
165 | return; | |
3f43b19b | 166 | mp = mallinfo(); |
30a4f2a8 | 167 | fprintf(f, "Memory usage for %s via mallinfo():\n", appname); |
168 | fprintf(f, "\ttotal space in arena: %6d KB\n", | |
169 | mp.arena >> 10); | |
170 | fprintf(f, "\tOrdinary blocks: %6d KB %6d blks\n", | |
171 | mp.uordblks >> 10, mp.ordblks); | |
172 | fprintf(f, "\tSmall blocks: %6d KB %6d blks\n", | |
173 | mp.usmblks >> 10, mp.smblks); | |
174 | fprintf(f, "\tHolding blocks: %6d KB %6d blks\n", | |
175 | mp.hblkhd >> 10, mp.hblks); | |
176 | fprintf(f, "\tFree Small blocks: %6d KB\n", | |
177 | mp.fsmblks >> 10); | |
178 | fprintf(f, "\tFree Ordinary blocks: %6d KB\n", | |
179 | mp.fordblks >> 10); | |
180 | t = mp.uordblks + mp.usmblks + mp.hblkhd; | |
181 | fprintf(f, "\tTotal in use: %6d KB %d%%\n", | |
182 | t >> 10, percent(t, mp.arena)); | |
183 | t = mp.fsmblks + mp.fordblks; | |
184 | fprintf(f, "\tTotal free: %6d KB %d%%\n", | |
185 | t >> 10, percent(t, mp.arena)); | |
186 | #ifdef WE_DONT_USE_KEEP | |
187 | fprintf(f, "\tKeep option: %6d KB\n", | |
188 | mp.keepcost >> 10); | |
189 | #endif | |
46c883ed | 190 | #if HAVE_EXT_MALLINFO |
30a4f2a8 | 191 | fprintf(f, "\tmax size of small blocks:\t%d\n", |
192 | mp.mxfast); | |
193 | fprintf(f, "\tnumber of small blocks in a holding block:\t%d\n", | |
3f43b19b | 194 | mp.nlblks); |
30a4f2a8 | 195 | fprintf(f, "\tsmall block rounding factor:\t%d\n", |
196 | mp.grain); | |
197 | fprintf(f, "\tspace (including overhead) allocated in ord. blks:\t%d\n", | |
3f43b19b | 198 | mp.uordbytes); |
30a4f2a8 | 199 | fprintf(f, "\tnumber of ordinary blocks allocated:\t%d\n", |
3f43b19b | 200 | mp.allocated); |
30a4f2a8 | 201 | fprintf(f, "\tbytes used in maintaining the free tree:\t%d\n", |
3f43b19b | 202 | mp.treeoverhead); |
46c883ed | 203 | #endif /* HAVE_EXT_MALLINFO */ |
3f43b19b | 204 | #if PRINT_MMAP |
205 | mallocmap(); | |
206 | #endif /* PRINT_MMAP */ | |
207 | #endif /* HAVE_MALLINFO */ | |
208 | } | |
30a4f2a8 | 209 | |
3f43b19b | 210 | static int PrintRusage(f, lf) |
f0f81709 | 211 | void (*f) (); |
212 | FILE *lf; | |
213 | { | |
30a4f2a8 | 214 | #if HAVE_GETRUSAGE && defined(RUSAGE_SELF) |
f0f81709 | 215 | struct rusage rusage; |
216 | getrusage(RUSAGE_SELF, &rusage); | |
30a4f2a8 | 217 | fprintf(lf, "CPU Usage: user %d sys %d\n", |
218 | (int) rusage.ru_utime.tv_sec, (int) rusage.ru_stime.tv_sec); | |
219 | fprintf(lf, "Memory Usage: rss %ld KB\n", | |
220 | rusage.ru_maxrss * getpagesize() >> 10); | |
221 | fprintf(lf, "Page faults with physical i/o: %ld\n", | |
f0f81709 | 222 | rusage.ru_majflt); |
223 | #endif | |
224 | dumpMallocStats(lf); | |
225 | if (f) | |
226 | f(0); | |
227 | return 0; | |
228 | } | |
229 | ||
0e08ce4b | 230 | void death(sig) |
12b9e9b1 | 231 | int sig; |
44a47c6e | 232 | { |
0e08ce4b | 233 | if (sig == SIGSEGV) |
2c47cf74 | 234 | fprintf(debug_log, "FATAL: Received Segment Violation...dying.\n"); |
0e08ce4b | 235 | else if (sig == SIGBUS) |
2c47cf74 | 236 | fprintf(debug_log, "FATAL: Received bus error...dying.\n"); |
0e08ce4b | 237 | else |
2c47cf74 | 238 | fprintf(debug_log, "FATAL: Received signal %d...dying.\n", sig); |
30a4f2a8 | 239 | #if !HAVE_SIGACTION |
44a47c6e | 240 | signal(SIGSEGV, SIG_DFL); |
241 | signal(SIGBUS, SIG_DFL); | |
0e08ce4b | 242 | signal(sig, SIG_DFL); |
30a4f2a8 | 243 | #endif |
44a47c6e | 244 | storeWriteCleanLog(); |
2c47cf74 | 245 | PrintRusage(NULL, debug_log); |
44a47c6e | 246 | print_warranty(); |
247 | abort(); | |
248 | } | |
249 | ||
250 | ||
30a4f2a8 | 251 | void sigusr2_handle(sig) |
090089c4 | 252 | int sig; |
253 | { | |
30a4f2a8 | 254 | static int state = 0; |
255 | debug(21, 1, "sigusr2_handle: SIGUSR2 received.\n"); | |
256 | if (state == 0) { | |
257 | _db_init(getCacheLogFile(), "ALL,10"); | |
258 | state = 1; | |
259 | } else { | |
260 | _db_init(getCacheLogFile(), getDebugOptions()); | |
261 | state = 0; | |
262 | } | |
263 | #if !HAVE_SIGACTION | |
264 | signal(sig, sigusr2_handle); /* reinstall */ | |
090089c4 | 265 | #endif |
266 | } | |
267 | ||
30a4f2a8 | 268 | void setSocketShutdownLifetimes() |
269 | { | |
270 | FD_ENTRY *f = NULL; | |
271 | int lft = getShutdownLifetime(); | |
272 | int cur; | |
273 | int i; | |
274 | for (i = fdstat_biggest_fd(); i >= 0; i--) { | |
275 | f = &fd_table[i]; | |
276 | if (!f->read_handler && !f->write_handler && !f->except_handler) | |
277 | continue; | |
278 | if (fdstatGetType(i) != FD_SOCKET) | |
279 | continue; | |
280 | cur = comm_get_fd_lifetime(i); | |
281 | if (cur > 0 && (cur - squid_curtime) <= lft) | |
282 | continue; | |
283 | comm_set_fd_lifetime(i, lft); | |
284 | } | |
285 | } | |
286 | ||
4d64d74a | 287 | void normal_shutdown() |
288 | { | |
289 | debug(21, 1, "Shutting down...\n"); | |
234967c9 | 290 | if (getPidFilename()) { |
30a4f2a8 | 291 | enter_suid(); |
4d64d74a | 292 | safeunlink(getPidFilename(), 0); |
30a4f2a8 | 293 | leave_suid(); |
234967c9 | 294 | } |
4d64d74a | 295 | storeWriteCleanLog(); |
296 | PrintRusage(NULL, debug_log); | |
c5c666ab | 297 | debug(21, 0, "Squid Cache (Version %s): Exiting normally.\n", |
8213067d | 298 | version_string); |
4d64d74a | 299 | exit(0); |
300 | } | |
147d3115 | 301 | |
090089c4 | 302 | void fatal_common(message) |
303 | char *message; | |
304 | { | |
db40ae20 | 305 | #if HAVE_SYSLOG |
090089c4 | 306 | if (syslog_enable) |
307 | syslog(LOG_ALERT, message); | |
db40ae20 | 308 | #endif |
2c47cf74 | 309 | fprintf(debug_log, "FATAL: %s\n", message); |
c5c666ab | 310 | fprintf(debug_log, "Squid Cache (Version %s): Terminated abnormally.\n", |
8213067d | 311 | version_string); |
2c47cf74 | 312 | fflush(debug_log); |
313 | PrintRusage(NULL, debug_log); | |
090089c4 | 314 | } |
315 | ||
316 | /* fatal */ | |
317 | void fatal(message) | |
318 | char *message; | |
319 | { | |
320 | fatal_common(message); | |
321 | exit(1); | |
322 | } | |
323 | ||
324 | /* fatal with dumping core */ | |
325 | void fatal_dump(message) | |
326 | char *message; | |
327 | { | |
328 | if (message) | |
329 | fatal_common(message); | |
330 | if (catch_signals) | |
331 | storeWriteCleanLog(); | |
332 | abort(); | |
333 | } | |
334 | ||
090089c4 | 335 | void sig_child(sig) |
336 | int sig; | |
337 | { | |
30a4f2a8 | 338 | #ifdef _SQUID_NEXT_ |
339 | union wait status; | |
340 | #else | |
090089c4 | 341 | int status; |
090089c4 | 342 | #endif |
30a4f2a8 | 343 | int pid; |
090089c4 | 344 | |
30a4f2a8 | 345 | do { |
346 | #ifdef _SQUID_NEXT_ | |
347 | pid = wait3(&status, WNOHANG, NULL); | |
090089c4 | 348 | #else |
30a4f2a8 | 349 | pid = waitpid(-1, &status, WNOHANG); |
090089c4 | 350 | #endif |
30a4f2a8 | 351 | debug(21, 3, "sig_child: Ate pid %d\n", pid); |
352 | #if HAVE_SIGACTION | |
353 | } while (pid > 0); | |
234967c9 | 354 | #else |
30a4f2a8 | 355 | } while (pid > 0 || (pid < 0 && errno == EINTR)); |
356 | signal(sig, sig_child); | |
234967c9 | 357 | #endif |
30a4f2a8 | 358 | } |
44a47c6e | 359 | |
360 | char *getMyHostname() | |
361 | { | |
362 | static char host[SQUIDHOSTNAMELEN + 1]; | |
363 | static int present = 0; | |
364 | struct hostent *h = NULL; | |
019dd986 | 365 | char *t = NULL; |
366 | ||
367 | if ((t = getVisibleHostname())) | |
368 | return t; | |
44a47c6e | 369 | |
370 | /* Get the host name and store it in host to return */ | |
371 | if (!present) { | |
372 | host[0] = '\0'; | |
373 | if (gethostname(host, SQUIDHOSTNAMELEN) == -1) { | |
019dd986 | 374 | debug(21, 1, "getMyHostname: gethostname failed: %s\n", |
44a47c6e | 375 | xstrerror()); |
376 | return NULL; | |
377 | } else { | |
30a4f2a8 | 378 | if ((h = ipcache_gethostbyname(host, IP_BLOCKING_LOOKUP)) != NULL) { |
44a47c6e | 379 | /* DNS lookup successful */ |
380 | /* use the official name from DNS lookup */ | |
381 | strcpy(host, h->h_name); | |
382 | } | |
383 | present = 1; | |
384 | } | |
385 | } | |
386 | return host; | |
387 | } | |
388 | ||
389 | int safeunlink(s, quiet) | |
390 | char *s; | |
391 | int quiet; | |
392 | { | |
393 | int err; | |
394 | if ((err = unlink(s)) < 0) | |
395 | if (!quiet) | |
019dd986 | 396 | debug(21, 1, "safeunlink: Couldn't delete %s. %s\n", s, xstrerror()); |
44a47c6e | 397 | return (err); |
398 | } | |
12b9e9b1 | 399 | |
30a4f2a8 | 400 | /* leave a privilegied section. (Give up any privilegies) |
401 | * Routines that need privilegies can rap themselves in enter_suid() | |
402 | * and leave_suid() | |
403 | * To give upp all posibilites to gain privilegies use no_suid() | |
12b9e9b1 | 404 | */ |
30a4f2a8 | 405 | void leave_suid() |
12b9e9b1 | 406 | { |
407 | struct passwd *pwd = NULL; | |
408 | struct group *grp = NULL; | |
30a4f2a8 | 409 | debug(21, 3, "leave_suid: PID %d called\n", getpid()); |
12b9e9b1 | 410 | if (geteuid() != 0) |
411 | return; | |
412 | /* Started as a root, check suid option */ | |
413 | if (getEffectiveUser() == NULL) | |
414 | return; | |
415 | if ((pwd = getpwnam(getEffectiveUser())) == NULL) | |
416 | return; | |
12b9e9b1 | 417 | if (getEffectiveGroup() && (grp = getgrnam(getEffectiveGroup()))) { |
418 | setgid(grp->gr_gid); | |
419 | } else { | |
420 | setgid(pwd->pw_gid); | |
421 | } | |
30a4f2a8 | 422 | debug(21, 3, "leave_suid: PID %d giving up root, becoming '%s'\n", |
423 | getpid(), pwd->pw_name); | |
234967c9 | 424 | #if HAVE_SETRESUID |
425 | setresuid(pwd->pw_uid, pwd->pw_uid, 0); | |
426 | #elif HAVE_SETEUID | |
427 | seteuid(pwd->pw_uid); | |
428 | #else | |
12b9e9b1 | 429 | setuid(pwd->pw_uid); |
234967c9 | 430 | #endif |
431 | } | |
432 | ||
30a4f2a8 | 433 | /* Enter a privilegied section */ |
434 | void enter_suid() | |
234967c9 | 435 | { |
30a4f2a8 | 436 | debug(21, 3, "enter_suid: PID %d taking root priveleges\n", getpid()); |
234967c9 | 437 | #if HAVE_SETRESUID |
438 | setresuid(-1, 0, -1); | |
439 | #else | |
440 | setuid(0); | |
441 | #endif | |
442 | } | |
443 | ||
30a4f2a8 | 444 | /* Give up the posibility to gain privilegies. |
445 | * this should be used before starting a sub process | |
446 | */ | |
234967c9 | 447 | void no_suid() |
448 | { | |
449 | uid_t uid; | |
30a4f2a8 | 450 | leave_suid(); |
234967c9 | 451 | uid = geteuid(); |
30a4f2a8 | 452 | debug(21, 3, "leave_suid: PID %d giving up root priveleges forever\n", getpid()); |
234967c9 | 453 | #if HAVE_SETRESUID |
454 | setresuid(uid, uid, uid); | |
455 | #else | |
456 | setuid(0); | |
457 | setuid(uid); | |
458 | #endif | |
12b9e9b1 | 459 | } |
ccff9601 | 460 | |
461 | void writePidFile() | |
462 | { | |
463 | FILE *pid_fp = NULL; | |
464 | char *f = NULL; | |
465 | ||
466 | if ((f = getPidFilename()) == NULL) | |
467 | return; | |
30a4f2a8 | 468 | enter_suid(); |
469 | pid_fp = fopen(f, "w"); | |
470 | leave_suid(); | |
471 | if (pid_fp != NULL) { | |
472 | fprintf(pid_fp, "%d\n", (int) getpid()); | |
473 | fclose(pid_fp); | |
474 | } else { | |
019dd986 | 475 | debug(21, 0, "WARNING: Could not write pid file\n"); |
476 | debug(21, 0, " %s: %s\n", f, xstrerror()); | |
ccff9601 | 477 | } |
ccff9601 | 478 | } |
c4fb974e | 479 | |
480 | ||
481 | void setMaxFD() | |
482 | { | |
234967c9 | 483 | #if HAVE_SETRLIMIT |
c4fb974e | 484 | /* try to use as many file descriptors as possible */ |
485 | /* System V uses RLIMIT_NOFILE and BSD uses RLIMIT_OFILE */ | |
486 | struct rlimit rl; | |
487 | #if defined(RLIMIT_NOFILE) | |
488 | if (getrlimit(RLIMIT_NOFILE, &rl) < 0) { | |
234967c9 | 489 | debug(21, 0, "setrlimit: RLIMIT_NOFILE: %s", xstrerror()); |
c4fb974e | 490 | } else { |
234967c9 | 491 | rl.rlim_cur = FD_SETSIZE; |
30a4f2a8 | 492 | if (rl.rlim_cur > rl.rlim_max) |
493 | rl.rlim_cur = rl.rlim_max; | |
c4fb974e | 494 | if (setrlimit(RLIMIT_NOFILE, &rl) < 0) { |
234967c9 | 495 | sprintf(tmp_error_buf, "setrlimit: RLIMIT_NOFILE: %s", xstrerror()); |
496 | fatal_dump(tmp_error_buf); | |
c4fb974e | 497 | } |
498 | } | |
499 | #elif defined(RLIMIT_OFILE) | |
500 | if (getrlimit(RLIMIT_OFILE, &rl) < 0) { | |
234967c9 | 501 | debug(21, 0, "setrlimit: RLIMIT_NOFILE: %s", xstrerror()); |
c4fb974e | 502 | } else { |
234967c9 | 503 | rl.rlim_cur = FD_SETSIZE; |
30a4f2a8 | 504 | if (rl.rlim_cur > rl.rlim_max) |
505 | rl.rlim_cur = rl.rlim_max; | |
c4fb974e | 506 | if (setrlimit(RLIMIT_OFILE, &rl) < 0) { |
234967c9 | 507 | sprintf(tmp_error_buf, "setrlimit: RLIMIT_OFILE: %s", xstrerror()); |
508 | fatal_dump(tmp_error_buf); | |
c4fb974e | 509 | } |
510 | } | |
511 | #endif | |
c4fb974e | 512 | #else /* HAVE_SETRLIMIT */ |
019dd986 | 513 | debug(21, 1, "setMaxFD: Cannot increase: setrlimit() not supported on this system"); |
30a4f2a8 | 514 | #endif /* HAVE_SETRLIMIT */ |
515 | ||
516 | #if HAVE_SETRLIMIT && defined(RLIMIT_DATA) | |
517 | if (getrlimit(RLIMIT_DATA, &rl) < 0) { | |
518 | debug(21, 0, "getrlimit: RLIMIT_DATA: %s", xstrerror()); | |
519 | } else { | |
520 | rl.rlim_cur = rl.rlim_max; /* set it to the max */ | |
521 | if (setrlimit(RLIMIT_DATA, &rl) < 0) { | |
522 | sprintf(tmp_error_buf, "setrlimit: RLIMIT_DATA: %s", xstrerror()); | |
523 | fatal_dump(tmp_error_buf); | |
524 | } | |
525 | } | |
526 | #endif /* RLIMIT_DATA */ | |
c4fb974e | 527 | } |
3a57089e | 528 | |
529 | time_t getCurrentTime() | |
530 | { | |
94e891ea | 531 | #if GETTIMEOFDAY_NO_TZP |
30a4f2a8 | 532 | gettimeofday(¤t_time); |
533 | #else | |
d598947a | 534 | gettimeofday(¤t_time, NULL); |
5f3f8d0e | 535 | #endif |
30a4f2a8 | 536 | return squid_curtime = current_time.tv_sec; |
5f3f8d0e | 537 | } |
fe113054 | 538 | |
a0bbd6c8 | 539 | int tvSubMsec(t1, t2) |
540 | struct timeval t1; | |
541 | struct timeval t2; | |
fe113054 | 542 | { |
543 | return (t2.tv_sec - t1.tv_sec) * 1000 + | |
a0bbd6c8 | 544 | (t2.tv_usec - t1.tv_usec) / 1000; |
fe113054 | 545 | } |
30a4f2a8 | 546 | |
547 | int percent(a, b) | |
548 | int a; | |
549 | int b; | |
550 | { | |
551 | return b ? ((int) (100.0 * a / b + 0.5)) : 0; | |
552 | } | |
553 | ||
554 | void squid_signal(sig, func, flags) | |
555 | int sig; | |
556 | void (*func) (); | |
557 | int flags; | |
558 | { | |
559 | #if HAVE_SIGACTION | |
560 | struct sigaction sa; | |
561 | sa.sa_handler = func; | |
562 | sa.sa_flags = flags; | |
563 | sigemptyset(&sa.sa_mask); | |
564 | if (sigaction(sig, &sa, NULL) < 0) | |
565 | debug(1, 0, "sigaction: sig=%d func=%p: %s\n", sig, func, xstrerror()); | |
566 | #else | |
567 | (void) signal(sig, func); | |
568 | #endif | |
569 | } |