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94e891ea | 1 | |
30a4f2a8 | 2 | /* |
a8f7d3ee | 3 | * $Id: tools.cc,v 1.51 1996/08/30 23:23:36 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 | { | |
95d659f0 | 125 | LOCAL_ARRAY(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; |
6e40f263 | 133 | char *filename; |
134 | static char command[256]; | |
135 | if ((filename = tempnam(NULL, appname)) == NULL) | |
136 | return; | |
137 | if ((fp = fopen(filename, "w")) == NULL) | |
138 | return; | |
139 | fprintf(fp, "From: %s\n", appname); | |
edae7bc0 | 140 | fprintf(fp, "To: %s\n", Config.adminEmail); |
6e40f263 | 141 | fprintf(fp, "Subject: %s\n", dead_msg()); |
142 | fclose(fp); | |
edae7bc0 | 143 | sprintf(command, "mail %s < %s", Config.adminEmail, filename); |
6e40f263 | 144 | system(command); /* XXX should avoid system(3) */ |
145 | unlink(filename); | |
090089c4 | 146 | } |
147 | ||
3f43b19b | 148 | static void dumpMallocStats(f) |
149 | FILE *f; | |
150 | { | |
151 | #if HAVE_MALLINFO | |
152 | struct mallinfo mp; | |
30a4f2a8 | 153 | int t; |
3f43b19b | 154 | if (!do_mallinfo) |
155 | return; | |
3f43b19b | 156 | mp = mallinfo(); |
30a4f2a8 | 157 | fprintf(f, "Memory usage for %s via mallinfo():\n", appname); |
158 | fprintf(f, "\ttotal space in arena: %6d KB\n", | |
159 | mp.arena >> 10); | |
160 | fprintf(f, "\tOrdinary blocks: %6d KB %6d blks\n", | |
161 | mp.uordblks >> 10, mp.ordblks); | |
162 | fprintf(f, "\tSmall blocks: %6d KB %6d blks\n", | |
163 | mp.usmblks >> 10, mp.smblks); | |
164 | fprintf(f, "\tHolding blocks: %6d KB %6d blks\n", | |
165 | mp.hblkhd >> 10, mp.hblks); | |
166 | fprintf(f, "\tFree Small blocks: %6d KB\n", | |
167 | mp.fsmblks >> 10); | |
168 | fprintf(f, "\tFree Ordinary blocks: %6d KB\n", | |
169 | mp.fordblks >> 10); | |
170 | t = mp.uordblks + mp.usmblks + mp.hblkhd; | |
171 | fprintf(f, "\tTotal in use: %6d KB %d%%\n", | |
172 | t >> 10, percent(t, mp.arena)); | |
173 | t = mp.fsmblks + mp.fordblks; | |
174 | fprintf(f, "\tTotal free: %6d KB %d%%\n", | |
175 | t >> 10, percent(t, mp.arena)); | |
176 | #ifdef WE_DONT_USE_KEEP | |
177 | fprintf(f, "\tKeep option: %6d KB\n", | |
178 | mp.keepcost >> 10); | |
179 | #endif | |
46c883ed | 180 | #if HAVE_EXT_MALLINFO |
30a4f2a8 | 181 | fprintf(f, "\tmax size of small blocks:\t%d\n", |
182 | mp.mxfast); | |
183 | fprintf(f, "\tnumber of small blocks in a holding block:\t%d\n", | |
3f43b19b | 184 | mp.nlblks); |
30a4f2a8 | 185 | fprintf(f, "\tsmall block rounding factor:\t%d\n", |
186 | mp.grain); | |
187 | fprintf(f, "\tspace (including overhead) allocated in ord. blks:\t%d\n", | |
3f43b19b | 188 | mp.uordbytes); |
30a4f2a8 | 189 | fprintf(f, "\tnumber of ordinary blocks allocated:\t%d\n", |
3f43b19b | 190 | mp.allocated); |
30a4f2a8 | 191 | fprintf(f, "\tbytes used in maintaining the free tree:\t%d\n", |
3f43b19b | 192 | mp.treeoverhead); |
46c883ed | 193 | #endif /* HAVE_EXT_MALLINFO */ |
3f43b19b | 194 | #if PRINT_MMAP |
195 | mallocmap(); | |
196 | #endif /* PRINT_MMAP */ | |
197 | #endif /* HAVE_MALLINFO */ | |
198 | } | |
30a4f2a8 | 199 | |
3f43b19b | 200 | static int PrintRusage(f, lf) |
f0f81709 | 201 | void (*f) (); |
202 | FILE *lf; | |
203 | { | |
30a4f2a8 | 204 | #if HAVE_GETRUSAGE && defined(RUSAGE_SELF) |
f0f81709 | 205 | struct rusage rusage; |
206 | getrusage(RUSAGE_SELF, &rusage); | |
30a4f2a8 | 207 | fprintf(lf, "CPU Usage: user %d sys %d\n", |
208 | (int) rusage.ru_utime.tv_sec, (int) rusage.ru_stime.tv_sec); | |
209 | fprintf(lf, "Memory Usage: rss %ld KB\n", | |
210 | rusage.ru_maxrss * getpagesize() >> 10); | |
211 | fprintf(lf, "Page faults with physical i/o: %ld\n", | |
f0f81709 | 212 | rusage.ru_majflt); |
213 | #endif | |
214 | dumpMallocStats(lf); | |
215 | if (f) | |
216 | f(0); | |
217 | return 0; | |
218 | } | |
219 | ||
0e08ce4b | 220 | void death(sig) |
12b9e9b1 | 221 | int sig; |
44a47c6e | 222 | { |
0e08ce4b | 223 | if (sig == SIGSEGV) |
2c47cf74 | 224 | fprintf(debug_log, "FATAL: Received Segment Violation...dying.\n"); |
0e08ce4b | 225 | else if (sig == SIGBUS) |
6e40f263 | 226 | fprintf(debug_log, "FATAL: Received Bus Error...dying.\n"); |
0e08ce4b | 227 | else |
2c47cf74 | 228 | fprintf(debug_log, "FATAL: Received signal %d...dying.\n", sig); |
6e40f263 | 229 | #if SA_RESETHAND == 0 |
44a47c6e | 230 | signal(SIGSEGV, SIG_DFL); |
231 | signal(SIGBUS, SIG_DFL); | |
0e08ce4b | 232 | signal(sig, SIG_DFL); |
30a4f2a8 | 233 | #endif |
44a47c6e | 234 | storeWriteCleanLog(); |
2c47cf74 | 235 | PrintRusage(NULL, debug_log); |
6e40f263 | 236 | if (squid_curtime - SQUID_RELEASE_TIME < 864000) { |
237 | /* skip if more than 10 days old */ | |
edae7bc0 | 238 | if (Config.adminEmail) |
6e40f263 | 239 | mail_warranty(); |
240 | else | |
241 | puts(dead_msg()); | |
242 | } | |
44a47c6e | 243 | abort(); |
244 | } | |
245 | ||
246 | ||
30a4f2a8 | 247 | void sigusr2_handle(sig) |
090089c4 | 248 | int sig; |
249 | { | |
30a4f2a8 | 250 | static int state = 0; |
251 | debug(21, 1, "sigusr2_handle: SIGUSR2 received.\n"); | |
252 | if (state == 0) { | |
b6f794d6 | 253 | _db_init(Config.Log.log, "ALL,10"); |
30a4f2a8 | 254 | state = 1; |
255 | } else { | |
b6f794d6 | 256 | _db_init(Config.Log.log, Config.debugOptions); |
30a4f2a8 | 257 | state = 0; |
258 | } | |
259 | #if !HAVE_SIGACTION | |
260 | signal(sig, sigusr2_handle); /* reinstall */ | |
090089c4 | 261 | #endif |
262 | } | |
263 | ||
30a4f2a8 | 264 | void setSocketShutdownLifetimes() |
265 | { | |
266 | FD_ENTRY *f = NULL; | |
b6f794d6 | 267 | int lft = Config.lifetimeShutdown; |
30a4f2a8 | 268 | int cur; |
269 | int i; | |
270 | for (i = fdstat_biggest_fd(); i >= 0; i--) { | |
271 | f = &fd_table[i]; | |
272 | if (!f->read_handler && !f->write_handler && !f->except_handler) | |
273 | continue; | |
274 | if (fdstatGetType(i) != FD_SOCKET) | |
275 | continue; | |
276 | cur = comm_get_fd_lifetime(i); | |
277 | if (cur > 0 && (cur - squid_curtime) <= lft) | |
278 | continue; | |
279 | comm_set_fd_lifetime(i, lft); | |
280 | } | |
281 | } | |
282 | ||
4d64d74a | 283 | void normal_shutdown() |
284 | { | |
285 | debug(21, 1, "Shutting down...\n"); | |
b6f794d6 | 286 | if (Config.pidFilename) { |
30a4f2a8 | 287 | enter_suid(); |
b6f794d6 | 288 | safeunlink(Config.pidFilename, 0); |
30a4f2a8 | 289 | leave_suid(); |
234967c9 | 290 | } |
4d64d74a | 291 | storeWriteCleanLog(); |
292 | PrintRusage(NULL, debug_log); | |
c5c666ab | 293 | debug(21, 0, "Squid Cache (Version %s): Exiting normally.\n", |
8213067d | 294 | version_string); |
457bedbd | 295 | storeCloseLog(); |
296 | statCloseLog(); | |
297 | fclose(debug_log); | |
4d64d74a | 298 | exit(0); |
299 | } | |
147d3115 | 300 | |
090089c4 | 301 | void fatal_common(message) |
302 | char *message; | |
303 | { | |
db40ae20 | 304 | #if HAVE_SYSLOG |
6e40f263 | 305 | if (opt_syslog_enable) |
090089c4 | 306 | syslog(LOG_ALERT, message); |
db40ae20 | 307 | #endif |
2c47cf74 | 308 | fprintf(debug_log, "FATAL: %s\n", message); |
c5c666ab | 309 | fprintf(debug_log, "Squid Cache (Version %s): Terminated abnormally.\n", |
8213067d | 310 | version_string); |
2c47cf74 | 311 | fflush(debug_log); |
312 | PrintRusage(NULL, debug_log); | |
090089c4 | 313 | } |
314 | ||
315 | /* fatal */ | |
316 | void fatal(message) | |
317 | char *message; | |
318 | { | |
319 | fatal_common(message); | |
320 | exit(1); | |
321 | } | |
322 | ||
323 | /* fatal with dumping core */ | |
324 | void fatal_dump(message) | |
325 | char *message; | |
326 | { | |
327 | if (message) | |
328 | fatal_common(message); | |
1758c627 | 329 | if (opt_catch_signals) |
090089c4 | 330 | storeWriteCleanLog(); |
331 | abort(); | |
332 | } | |
333 | ||
090089c4 | 334 | void sig_child(sig) |
335 | int sig; | |
336 | { | |
30a4f2a8 | 337 | #ifdef _SQUID_NEXT_ |
338 | union wait status; | |
339 | #else | |
090089c4 | 340 | int status; |
090089c4 | 341 | #endif |
30a4f2a8 | 342 | int pid; |
090089c4 | 343 | |
30a4f2a8 | 344 | do { |
345 | #ifdef _SQUID_NEXT_ | |
346 | pid = wait3(&status, WNOHANG, NULL); | |
090089c4 | 347 | #else |
30a4f2a8 | 348 | pid = waitpid(-1, &status, WNOHANG); |
090089c4 | 349 | #endif |
30a4f2a8 | 350 | debug(21, 3, "sig_child: Ate pid %d\n", pid); |
351 | #if HAVE_SIGACTION | |
352 | } while (pid > 0); | |
234967c9 | 353 | #else |
30a4f2a8 | 354 | } while (pid > 0 || (pid < 0 && errno == EINTR)); |
355 | signal(sig, sig_child); | |
234967c9 | 356 | #endif |
30a4f2a8 | 357 | } |
44a47c6e | 358 | |
359 | char *getMyHostname() | |
360 | { | |
95d659f0 | 361 | LOCAL_ARRAY(char, host, SQUIDHOSTNAMELEN + 1); |
44a47c6e | 362 | static int present = 0; |
363 | struct hostent *h = NULL; | |
019dd986 | 364 | char *t = NULL; |
365 | ||
b6f794d6 | 366 | if ((t = Config.visibleHostname)) |
019dd986 | 367 | return t; |
44a47c6e | 368 | |
369 | /* Get the host name and store it in host to return */ | |
370 | if (!present) { | |
371 | host[0] = '\0'; | |
372 | if (gethostname(host, SQUIDHOSTNAMELEN) == -1) { | |
019dd986 | 373 | debug(21, 1, "getMyHostname: gethostname failed: %s\n", |
44a47c6e | 374 | xstrerror()); |
375 | return NULL; | |
376 | } else { | |
30a4f2a8 | 377 | if ((h = ipcache_gethostbyname(host, IP_BLOCKING_LOOKUP)) != NULL) { |
44a47c6e | 378 | /* DNS lookup successful */ |
379 | /* use the official name from DNS lookup */ | |
380 | strcpy(host, h->h_name); | |
381 | } | |
382 | present = 1; | |
383 | } | |
384 | } | |
385 | return host; | |
386 | } | |
387 | ||
388 | int safeunlink(s, quiet) | |
389 | char *s; | |
390 | int quiet; | |
391 | { | |
392 | int err; | |
393 | if ((err = unlink(s)) < 0) | |
394 | if (!quiet) | |
019dd986 | 395 | debug(21, 1, "safeunlink: Couldn't delete %s. %s\n", s, xstrerror()); |
44a47c6e | 396 | return (err); |
397 | } | |
12b9e9b1 | 398 | |
30a4f2a8 | 399 | /* leave a privilegied section. (Give up any privilegies) |
400 | * Routines that need privilegies can rap themselves in enter_suid() | |
401 | * and leave_suid() | |
402 | * To give upp all posibilites to gain privilegies use no_suid() | |
12b9e9b1 | 403 | */ |
30a4f2a8 | 404 | void leave_suid() |
12b9e9b1 | 405 | { |
406 | struct passwd *pwd = NULL; | |
407 | struct group *grp = NULL; | |
30a4f2a8 | 408 | debug(21, 3, "leave_suid: PID %d called\n", getpid()); |
12b9e9b1 | 409 | if (geteuid() != 0) |
410 | return; | |
411 | /* Started as a root, check suid option */ | |
b6f794d6 | 412 | if (Config.effectiveUser == NULL) |
12b9e9b1 | 413 | return; |
b6f794d6 | 414 | if ((pwd = getpwnam(Config.effectiveUser)) == NULL) |
12b9e9b1 | 415 | return; |
b6f794d6 | 416 | if (Config.effectiveGroup && (grp = getgrnam(Config.effectiveGroup))) { |
12b9e9b1 | 417 | setgid(grp->gr_gid); |
418 | } else { | |
419 | setgid(pwd->pw_gid); | |
420 | } | |
30a4f2a8 | 421 | debug(21, 3, "leave_suid: PID %d giving up root, becoming '%s'\n", |
422 | getpid(), pwd->pw_name); | |
234967c9 | 423 | #if HAVE_SETRESUID |
424 | setresuid(pwd->pw_uid, pwd->pw_uid, 0); | |
425 | #elif HAVE_SETEUID | |
426 | seteuid(pwd->pw_uid); | |
427 | #else | |
12b9e9b1 | 428 | setuid(pwd->pw_uid); |
234967c9 | 429 | #endif |
430 | } | |
431 | ||
30a4f2a8 | 432 | /* Enter a privilegied section */ |
433 | void enter_suid() | |
234967c9 | 434 | { |
30a4f2a8 | 435 | debug(21, 3, "enter_suid: PID %d taking root priveleges\n", getpid()); |
234967c9 | 436 | #if HAVE_SETRESUID |
437 | setresuid(-1, 0, -1); | |
438 | #else | |
439 | setuid(0); | |
440 | #endif | |
441 | } | |
442 | ||
30a4f2a8 | 443 | /* Give up the posibility to gain privilegies. |
444 | * this should be used before starting a sub process | |
445 | */ | |
234967c9 | 446 | void no_suid() |
447 | { | |
448 | uid_t uid; | |
30a4f2a8 | 449 | leave_suid(); |
234967c9 | 450 | uid = geteuid(); |
30a4f2a8 | 451 | debug(21, 3, "leave_suid: PID %d giving up root priveleges forever\n", getpid()); |
234967c9 | 452 | #if HAVE_SETRESUID |
453 | setresuid(uid, uid, uid); | |
454 | #else | |
455 | setuid(0); | |
456 | setuid(uid); | |
457 | #endif | |
12b9e9b1 | 458 | } |
ccff9601 | 459 | |
460 | void writePidFile() | |
461 | { | |
462 | FILE *pid_fp = NULL; | |
463 | char *f = NULL; | |
464 | ||
b6f794d6 | 465 | if ((f = Config.pidFilename) == NULL) |
ccff9601 | 466 | return; |
30a4f2a8 | 467 | enter_suid(); |
468 | pid_fp = fopen(f, "w"); | |
469 | leave_suid(); | |
470 | if (pid_fp != NULL) { | |
471 | fprintf(pid_fp, "%d\n", (int) getpid()); | |
472 | fclose(pid_fp); | |
473 | } else { | |
019dd986 | 474 | debug(21, 0, "WARNING: Could not write pid file\n"); |
475 | debug(21, 0, " %s: %s\n", f, xstrerror()); | |
ccff9601 | 476 | } |
ccff9601 | 477 | } |
c4fb974e | 478 | |
479 | ||
480 | void setMaxFD() | |
481 | { | |
234967c9 | 482 | #if HAVE_SETRLIMIT |
c4fb974e | 483 | /* try to use as many file descriptors as possible */ |
484 | /* System V uses RLIMIT_NOFILE and BSD uses RLIMIT_OFILE */ | |
485 | struct rlimit rl; | |
486 | #if defined(RLIMIT_NOFILE) | |
487 | if (getrlimit(RLIMIT_NOFILE, &rl) < 0) { | |
a8f7d3ee | 488 | debug(21, 0, "setrlimit: RLIMIT_NOFILE: %s\n", xstrerror()); |
c4fb974e | 489 | } else { |
234967c9 | 490 | rl.rlim_cur = FD_SETSIZE; |
30a4f2a8 | 491 | if (rl.rlim_cur > rl.rlim_max) |
492 | rl.rlim_cur = rl.rlim_max; | |
c4fb974e | 493 | if (setrlimit(RLIMIT_NOFILE, &rl) < 0) { |
234967c9 | 494 | sprintf(tmp_error_buf, "setrlimit: RLIMIT_NOFILE: %s", xstrerror()); |
495 | fatal_dump(tmp_error_buf); | |
c4fb974e | 496 | } |
497 | } | |
498 | #elif defined(RLIMIT_OFILE) | |
499 | if (getrlimit(RLIMIT_OFILE, &rl) < 0) { | |
a8f7d3ee | 500 | debug(21, 0, "setrlimit: RLIMIT_NOFILE: %s\n", xstrerror()); |
c4fb974e | 501 | } else { |
234967c9 | 502 | rl.rlim_cur = FD_SETSIZE; |
30a4f2a8 | 503 | if (rl.rlim_cur > rl.rlim_max) |
504 | rl.rlim_cur = rl.rlim_max; | |
c4fb974e | 505 | if (setrlimit(RLIMIT_OFILE, &rl) < 0) { |
234967c9 | 506 | sprintf(tmp_error_buf, "setrlimit: RLIMIT_OFILE: %s", xstrerror()); |
507 | fatal_dump(tmp_error_buf); | |
c4fb974e | 508 | } |
509 | } | |
510 | #endif | |
c4fb974e | 511 | #else /* HAVE_SETRLIMIT */ |
a8f7d3ee | 512 | debug(21, 1, "setMaxFD: Cannot increase: setrlimit() not supported on this system\n"); |
30a4f2a8 | 513 | #endif /* HAVE_SETRLIMIT */ |
514 | ||
515 | #if HAVE_SETRLIMIT && defined(RLIMIT_DATA) | |
516 | if (getrlimit(RLIMIT_DATA, &rl) < 0) { | |
a8f7d3ee | 517 | debug(21, 0, "getrlimit: RLIMIT_DATA: %s\n", xstrerror()); |
30a4f2a8 | 518 | } else { |
519 | rl.rlim_cur = rl.rlim_max; /* set it to the max */ | |
520 | if (setrlimit(RLIMIT_DATA, &rl) < 0) { | |
521 | sprintf(tmp_error_buf, "setrlimit: RLIMIT_DATA: %s", xstrerror()); | |
522 | fatal_dump(tmp_error_buf); | |
523 | } | |
524 | } | |
525 | #endif /* RLIMIT_DATA */ | |
c4fb974e | 526 | } |
3a57089e | 527 | |
528 | time_t getCurrentTime() | |
529 | { | |
94e891ea | 530 | #if GETTIMEOFDAY_NO_TZP |
30a4f2a8 | 531 | gettimeofday(¤t_time); |
532 | #else | |
d598947a | 533 | gettimeofday(¤t_time, NULL); |
5f3f8d0e | 534 | #endif |
30a4f2a8 | 535 | return squid_curtime = current_time.tv_sec; |
5f3f8d0e | 536 | } |
fe113054 | 537 | |
a0bbd6c8 | 538 | int tvSubMsec(t1, t2) |
539 | struct timeval t1; | |
540 | struct timeval t2; | |
fe113054 | 541 | { |
542 | return (t2.tv_sec - t1.tv_sec) * 1000 + | |
a0bbd6c8 | 543 | (t2.tv_usec - t1.tv_usec) / 1000; |
fe113054 | 544 | } |
30a4f2a8 | 545 | |
546 | int percent(a, b) | |
547 | int a; | |
548 | int b; | |
549 | { | |
550 | return b ? ((int) (100.0 * a / b + 0.5)) : 0; | |
551 | } | |
552 | ||
553 | void squid_signal(sig, func, flags) | |
554 | int sig; | |
555 | void (*func) (); | |
556 | int flags; | |
557 | { | |
558 | #if HAVE_SIGACTION | |
559 | struct sigaction sa; | |
560 | sa.sa_handler = func; | |
561 | sa.sa_flags = flags; | |
562 | sigemptyset(&sa.sa_mask); | |
563 | if (sigaction(sig, &sa, NULL) < 0) | |
564 | debug(1, 0, "sigaction: sig=%d func=%p: %s\n", sig, func, xstrerror()); | |
565 | #else | |
566 | (void) signal(sig, func); | |
567 | #endif | |
568 | } |