1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * http_log.c: Dealing with the logs and errors
25 #include "apr_general.h" /* for signal stuff */
26 #include "apr_strings.h"
27 #include "apr_errno.h"
28 #include "apr_thread_proc.h"
30 #include "apr_signal.h"
31 #include "apr_portable.h"
32 #include "apr_base64.h"
34 #define APR_WANT_STDIO
35 #define APR_WANT_STRFUNC
44 #if APR_HAVE_PROCESS_H
45 #include <process.h> /* for getpid() on Win32 */
48 #include "ap_config.h"
50 #include "http_config.h"
51 #include "http_core.h"
53 #include "http_main.h"
54 #include "util_time.h"
56 #include "ap_listen.h"
59 #include <sys/syscall.h>
60 #include <sys/types.h>
63 /* we know core's module_index is 0 */
64 #undef APLOG_MODULE_INDEX
65 #define APLOG_MODULE_INDEX AP_CORE_MODULE_INDEX
73 APR_HOOK_LINK(error_log)
74 APR_HOOK_LINK(generate_log_id)
77 int AP_DECLARE_DATA ap_default_loglevel = DEFAULT_LOGLEVEL;
81 static const TRANS facilities[] = {
84 {"authpriv",LOG_AUTHPRIV},
90 {"daemon", LOG_DAEMON},
108 {"syslog", LOG_SYSLOG},
117 {"local0", LOG_LOCAL0},
120 {"local1", LOG_LOCAL1},
123 {"local2", LOG_LOCAL2},
126 {"local3", LOG_LOCAL3},
129 {"local4", LOG_LOCAL4},
132 {"local5", LOG_LOCAL5},
135 {"local6", LOG_LOCAL6},
138 {"local7", LOG_LOCAL7},
144 static const TRANS priorities[] = {
145 {"emerg", APLOG_EMERG},
146 {"alert", APLOG_ALERT},
147 {"crit", APLOG_CRIT},
148 {"error", APLOG_ERR},
149 {"warn", APLOG_WARNING},
150 {"notice", APLOG_NOTICE},
151 {"info", APLOG_INFO},
152 {"debug", APLOG_DEBUG},
153 {"trace1", APLOG_TRACE1},
154 {"trace2", APLOG_TRACE2},
155 {"trace3", APLOG_TRACE3},
156 {"trace4", APLOG_TRACE4},
157 {"trace5", APLOG_TRACE5},
158 {"trace6", APLOG_TRACE6},
159 {"trace7", APLOG_TRACE7},
160 {"trace8", APLOG_TRACE8},
164 static apr_pool_t *stderr_pool = NULL;
166 static apr_file_t *stderr_log = NULL;
168 /* track pipe handles to close in child process */
169 typedef struct read_handle_t {
170 struct read_handle_t *next;
174 static read_handle_t *read_handles;
177 * @brief The piped logging structure.
179 * Piped logs are used to move functionality out of the main server.
180 * For example, log rotation is done with piped logs.
183 /** The pool to use for the piped log */
185 /** The pipe between the server and the logging process */
186 apr_file_t *read_fd, *write_fd;
187 #ifdef AP_HAVE_RELIABLE_PIPED_LOGS
188 /** The name of the program the logging process is running */
190 /** The pid of the logging process */
192 /** How to reinvoke program when it must be replaced */
193 apr_cmdtype_e cmdtype;
197 AP_DECLARE(apr_file_t *) ap_piped_log_read_fd(piped_log *pl)
202 AP_DECLARE(apr_file_t *) ap_piped_log_write_fd(piped_log *pl)
207 /* remember to close this handle in the child process
209 * On Win32 this makes zero sense, because we don't
210 * take the parent process's child procs.
211 * If the win32 parent instead passed each and every
212 * logger write handle from itself down to the child,
213 * and the parent manages all aspects of keeping the
214 * reliable pipe log children alive, this would still
215 * make no sense :) Cripple it on Win32.
217 static void close_handle_in_child(apr_pool_t *p, apr_file_t *f)
220 read_handle_t *new_handle;
222 new_handle = apr_pcalloc(p, sizeof(read_handle_t));
223 new_handle->next = read_handles;
224 new_handle->handle = f;
225 read_handles = new_handle;
229 void ap_logs_child_init(apr_pool_t *p, server_rec *s)
231 read_handle_t *cur = read_handles;
234 apr_file_close(cur->handle);
239 AP_DECLARE(void) ap_open_stderr_log(apr_pool_t *p)
241 apr_file_open_stderr(&stderr_log, p);
244 AP_DECLARE(apr_status_t) ap_replace_stderr_log(apr_pool_t *p,
247 apr_file_t *stderr_file;
249 char *filename = ap_server_root_relative(p, fname);
251 ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT,
252 APR_EBADPATH, NULL, APLOGNO(00085) "Invalid -E error log file %s",
256 if ((rc = apr_file_open(&stderr_file, filename,
257 APR_APPEND | APR_WRITE | APR_CREATE | APR_LARGEFILE,
258 APR_OS_DEFAULT, p)) != APR_SUCCESS) {
259 ap_log_error(APLOG_MARK, APLOG_STARTUP, rc, NULL, APLOGNO(00086)
260 "%s: could not open error log file %s.",
261 ap_server_argv0, fname);
265 /* This is safe provided we revert it when we are finished.
266 * We don't manager the callers pool!
270 if ((rc = apr_file_open_stderr(&stderr_log, stderr_pool))
272 apr_file_flush(stderr_log);
273 if ((rc = apr_file_dup2(stderr_log, stderr_file, stderr_pool))
275 apr_file_close(stderr_file);
277 * You might ponder why stderr_pool should survive?
278 * The trouble is, stderr_pool may have s_main->error_log,
279 * so we aren't in a position to destory stderr_pool until
280 * the next recycle. There's also an apparent bug which
281 * is not; if some folk decided to call this function before
282 * the core open error logs hook, this pool won't survive.
283 * Neither does the stderr logger, so this isn't a problem.
287 /* Revert, see above */
288 if (stderr_pool == p)
291 if (rc != APR_SUCCESS) {
292 ap_log_error(APLOG_MARK, APLOG_CRIT, rc, NULL, APLOGNO(00087)
293 "unable to replace stderr with error log file");
298 static void log_child_errfn(apr_pool_t *pool, apr_status_t err,
299 const char *description)
301 ap_log_error(APLOG_MARK, APLOG_ERR, err, NULL, APLOGNO(00088)
305 /* Create a child process running PROGNAME with a pipe connected to
306 * the childs stdin. The write-end of the pipe will be placed in
307 * *FPIN on successful return. If dummy_stderr is non-zero, the
308 * stderr for the child will be the same as the stdout of the parent.
309 * Otherwise the child will inherit the stderr from the parent. */
310 static int log_child(apr_pool_t *p, const char *progname,
311 apr_file_t **fpin, apr_cmdtype_e cmdtype,
314 /* Child process code for 'ErrorLog "|..."';
315 * may want a common framework for this, since I expect it will
316 * be common for other foo-loggers to want this sort of thing...
319 apr_procattr_t *procattr;
323 if (((rc = apr_procattr_create(&procattr, p)) == APR_SUCCESS)
324 && ((rc = apr_procattr_dir_set(procattr,
325 ap_server_root)) == APR_SUCCESS)
326 && ((rc = apr_procattr_cmdtype_set(procattr, cmdtype)) == APR_SUCCESS)
327 && ((rc = apr_procattr_io_set(procattr,
330 APR_NO_PIPE)) == APR_SUCCESS)
331 && ((rc = apr_procattr_error_check_set(procattr, 1)) == APR_SUCCESS)
332 && ((rc = apr_procattr_child_errfn_set(procattr, log_child_errfn))
336 apr_tokenize_to_argv(progname, &args, p);
337 procnew = (apr_proc_t *)apr_pcalloc(p, sizeof(*procnew));
340 if ((rc = apr_file_open_stdout(&errfile, p)) == APR_SUCCESS)
341 rc = apr_procattr_child_err_set(procattr, errfile, NULL);
344 rc = apr_proc_create(procnew, args[0], (const char * const *)args,
347 if (rc == APR_SUCCESS) {
348 apr_pool_note_subprocess(p, procnew, APR_KILL_AFTER_TIMEOUT);
349 (*fpin) = procnew->in;
350 /* read handle to pipe not kept open, so no need to call
351 * close_handle_in_child()
359 /* Open the error log for the given server_rec. If IS_MAIN is
360 * non-zero, s is the main server. */
361 static int open_error_log(server_rec *s, int is_main, apr_pool_t *p)
366 if (*s->error_fname == '|') {
367 apr_file_t *dummy = NULL;
368 apr_cmdtype_e cmdtype = APR_PROGRAM_ENV;
369 fname = s->error_fname + 1;
371 /* In 2.4 favor PROGRAM_ENV, accept "||prog" syntax for compatibility
372 * and "|$cmd" to override the default.
373 * Any 2.2 backport would continue to favor SHELLCMD_ENV so there
374 * accept "||prog" to override, and "|$cmd" to ease conversion.
379 cmdtype = APR_SHELLCMD_ENV;
383 /* Spawn a new child logger. If this is the main server_rec,
384 * the new child must use a dummy stderr since the current
385 * stderr might be a pipe to the old logger. Otherwise, the
386 * child inherits the parents stderr. */
387 rc = log_child(p, fname, &dummy, cmdtype, is_main);
388 if (rc != APR_SUCCESS) {
389 ap_log_error(APLOG_MARK, APLOG_STARTUP, rc, NULL, APLOGNO(00089)
390 "Couldn't start ErrorLog process '%s'.",
395 s->error_log = dummy;
399 else if (!strncasecmp(s->error_fname, "syslog", 6)) {
400 if ((fname = strchr(s->error_fname, ':'))) {
404 for (fac = facilities; fac->t_name; fac++) {
405 if (!strcasecmp(fname, fac->t_name)) {
406 openlog(ap_server_argv0, LOG_NDELAY|LOG_CONS|LOG_PID,
414 openlog(ap_server_argv0, LOG_NDELAY|LOG_CONS|LOG_PID, LOG_LOCAL7);
421 fname = ap_server_root_relative(p, s->error_fname);
423 ap_log_error(APLOG_MARK, APLOG_STARTUP, APR_EBADPATH, NULL, APLOGNO(00090)
424 "%s: Invalid error log path %s.",
425 ap_server_argv0, s->error_fname);
428 if ((rc = apr_file_open(&s->error_log, fname,
429 APR_APPEND | APR_WRITE | APR_CREATE | APR_LARGEFILE,
430 APR_OS_DEFAULT, p)) != APR_SUCCESS) {
431 ap_log_error(APLOG_MARK, APLOG_STARTUP, rc, NULL, APLOGNO(00091)
432 "%s: could not open error log file %s.",
433 ap_server_argv0, fname);
441 int ap_open_logs(apr_pool_t *pconf, apr_pool_t *p /* plog */,
442 apr_pool_t *ptemp, server_rec *s_main)
444 apr_pool_t *stderr_p;
445 server_rec *virt, *q;
449 /* Register to throw away the read_handles list when we
450 * cleanup plog. Upon fork() for the apache children,
451 * this read_handles list is closed so only the parent
452 * can relaunch a lost log child. These read handles
453 * are always closed on exec.
454 * We won't care what happens to our stderr log child
455 * between log phases, so we don't mind losing stderr's
456 * read_handle a little bit early.
458 apr_pool_cleanup_register(p, &read_handles, ap_pool_cleanup_set_null,
459 apr_pool_cleanup_null);
461 /* HERE we need a stdout log that outlives plog.
462 * We *presume* the parent of plog is a process
463 * or global pool which spans server restarts.
464 * Create our stderr_pool as a child of the plog's
467 apr_pool_create(&stderr_p, apr_pool_parent_get(p));
468 apr_pool_tag(stderr_p, "stderr_pool");
470 if (open_error_log(s_main, 1, stderr_p) != OK) {
475 if (s_main->error_log) {
478 /* Replace existing stderr with new log. */
479 apr_file_flush(s_main->error_log);
480 rv = apr_file_dup2(stderr_log, s_main->error_log, stderr_p);
481 if (rv != APR_SUCCESS) {
482 ap_log_error(APLOG_MARK, APLOG_CRIT, rv, s_main, APLOGNO(00092)
483 "unable to replace stderr with error_log");
486 /* We are done with stderr_pool, close it, killing
487 * the previous generation's stderr logger
490 apr_pool_destroy(stderr_pool);
491 stderr_pool = stderr_p;
494 * Now that we have dup'ed s_main->error_log to stderr_log
495 * close it and set s_main->error_log to stderr_log. This avoids
496 * this fd being inherited by the next piped logger who would
497 * keep open the writing end of the pipe that this one uses
498 * as stdin. This in turn would prevent the piped logger from
501 apr_file_close(s_main->error_log);
502 s_main->error_log = stderr_log;
505 /* note that stderr may still need to be replaced with something
506 * because it points to the old error log, or back to the tty
508 * XXX: This is BS - /dev/null is non-portable
509 * errno-as-apr_status_t is also non-portable
513 #define NULL_DEVICE "nul"
515 #define NULL_DEVICE "/dev/null"
518 if (replace_stderr && freopen(NULL_DEVICE, "w", stderr) == NULL) {
519 ap_log_error(APLOG_MARK, APLOG_CRIT, errno, s_main, APLOGNO(00093)
520 "unable to replace stderr with %s", NULL_DEVICE);
523 for (virt = s_main->next; virt; virt = virt->next) {
524 if (virt->error_fname) {
525 for (q=s_main; q != virt; q = q->next) {
526 if (q->error_fname != NULL
527 && strcmp(q->error_fname, virt->error_fname) == 0) {
533 if (open_error_log(virt, 0, p) != OK) {
538 virt->error_log = q->error_log;
542 virt->error_log = s_main->error_log;
548 AP_DECLARE(void) ap_error_log2stderr(server_rec *s) {
549 apr_file_t *errfile = NULL;
551 apr_file_open_stderr(&errfile, s->process->pool);
552 if (s->error_log != NULL) {
553 apr_file_dup2(s->error_log, errfile, s->process->pool);
557 static int cpystrn(char *buf, const char *arg, int buflen)
562 end = apr_cpystrn(buf, arg, buflen);
567 static int log_remote_address(const ap_errorlog_info *info, const char *arg,
568 char *buf, int buflen)
570 if (info->r && !(arg && *arg == 'c'))
571 return apr_snprintf(buf, buflen, "%s:%d", info->r->useragent_ip,
572 info->r->useragent_addr ? info->r->useragent_addr->port : 0);
574 return apr_snprintf(buf, buflen, "%s:%d", info->c->client_ip,
575 info->c->client_addr ? info->c->client_addr->port : 0);
580 static int log_local_address(const ap_errorlog_info *info, const char *arg,
581 char *buf, int buflen)
584 return apr_snprintf(buf, buflen, "%s:%d", info->c->local_ip,
585 info->c->local_addr->port);
590 static int log_pid(const ap_errorlog_info *info, const char *arg,
591 char *buf, int buflen)
593 pid_t pid = getpid();
594 return apr_snprintf(buf, buflen, "%" APR_PID_T_FMT, pid);
597 static int log_tid(const ap_errorlog_info *info, const char *arg,
598 char *buf, int buflen)
604 if (arg && *arg == 'g') {
605 pid_t tid = syscall(SYS_gettid);
608 return apr_snprintf(buf, buflen, "%"APR_PID_T_FMT, tid);
612 if (ap_mpm_query(AP_MPMQ_IS_THREADED, &result) == APR_SUCCESS
613 && result != AP_MPMQ_NOT_SUPPORTED)
615 apr_os_thread_t tid = apr_os_thread_current();
616 return apr_snprintf(buf, buflen, "%pT", &tid);
622 static int log_ctime(const ap_errorlog_info *info, const char *arg,
623 char *buf, int buflen)
625 int time_len = buflen;
626 int option = AP_CTIME_OPTION_NONE;
628 while (arg && *arg) {
630 case 'u': option |= AP_CTIME_OPTION_USEC;
632 case 'c': option |= AP_CTIME_OPTION_COMPACT;
638 ap_recent_ctime_ex(buf, apr_time_now(), option, &time_len);
640 /* ap_recent_ctime_ex includes the trailing \0 in time_len */
644 static int log_loglevel(const ap_errorlog_info *info, const char *arg,
645 char *buf, int buflen)
650 return cpystrn(buf, priorities[info->level].t_name, buflen);
653 static int log_log_id(const ap_errorlog_info *info, const char *arg,
654 char *buf, int buflen)
657 * C: log conn log_id if available,
658 * c: log conn log id if available and not a once-per-request log line
659 * else: log request log id if available
661 if (arg && !strcasecmp(arg, "c")) {
662 if (info->c && (*arg != 'C' || !info->r)) {
663 return cpystrn(buf, info->c->log_id, buflen);
666 else if (info->rmain) {
667 return cpystrn(buf, info->rmain->log_id, buflen);
672 static int log_keepalives(const ap_errorlog_info *info, const char *arg,
673 char *buf, int buflen)
678 return apr_snprintf(buf, buflen, "%d", info->c->keepalives);
681 static int log_module_name(const ap_errorlog_info *info, const char *arg,
682 char *buf, int buflen)
684 return cpystrn(buf, ap_find_module_short_name(info->module_index), buflen);
687 static int log_file_line(const ap_errorlog_info *info, const char *arg,
688 char *buf, int buflen)
690 if (info->file == NULL) {
694 const char *file = info->file;
695 #if defined(_OSD_POSIX) || defined(WIN32) || defined(__MVS__)
697 char *e = strrchr(file, '/');
700 e = strrchr(file, '\\');
704 /* In OSD/POSIX, the compiler returns for __FILE__
705 * a string like: __FILE__="*POSIX(/usr/include/stdio.h)"
706 * (it even returns an absolute path for sources in
707 * the current directory). Here we try to strip this
708 * down to the basename.
710 if (e != NULL && e[1] != '\0') {
711 apr_snprintf(tmp, sizeof(tmp), "%s", &e[1]);
712 e = &tmp[strlen(tmp)-1];
718 #else /* _OSD_POSIX || WIN32 */
720 /* On Unix, __FILE__ may be an absolute path in a
722 if (file[0] == '/' && (p = ap_strrchr_c(file, '/')) != NULL) {
725 #endif /*_OSD_POSIX || WIN32 */
726 return apr_snprintf(buf, buflen, "%s(%d)", file, info->line);
730 static int log_apr_status(const ap_errorlog_info *info, const char *arg,
731 char *buf, int buflen)
733 apr_status_t status = info->status;
738 if (status < APR_OS_START_EAIERR) {
739 len = apr_snprintf(buf, buflen, "(%d)", status);
741 else if (status < APR_OS_START_SYSERR) {
742 len = apr_snprintf(buf, buflen, "(EAI %d)",
743 status - APR_OS_START_EAIERR);
745 else if (status < 100000 + APR_OS_START_SYSERR) {
746 len = apr_snprintf(buf, buflen, "(OS %d)",
747 status - APR_OS_START_SYSERR);
750 len = apr_snprintf(buf, buflen, "(os 0x%08x)",
751 status - APR_OS_START_SYSERR);
753 apr_strerror(status, buf + len, buflen - len);
754 len += strlen(buf + len);
758 static int log_server_name(const ap_errorlog_info *info, const char *arg,
759 char *buf, int buflen)
762 return cpystrn(buf, ap_get_server_name((request_rec *)info->r), buflen);
767 static int log_virtual_host(const ap_errorlog_info *info, const char *arg,
768 char *buf, int buflen)
771 return cpystrn(buf, info->s->server_hostname, buflen);
777 static int log_table_entry(const apr_table_t *table, const char *name,
778 char *buf, int buflen)
780 #ifndef AP_UNSAFE_ERROR_LOG_UNESCAPED
782 char scratch[MAX_STRING_LEN];
784 if ((value = apr_table_get(table, name)) != NULL) {
785 ap_escape_errorlog_item(scratch, value, MAX_STRING_LEN);
786 return cpystrn(buf, scratch, buflen);
791 return cpystrn(buf, apr_table_get(table, name), buflen);
795 static int log_header(const ap_errorlog_info *info, const char *arg,
796 char *buf, int buflen)
799 return log_table_entry(info->r->headers_in, arg, buf, buflen);
804 static int log_note(const ap_errorlog_info *info, const char *arg,
805 char *buf, int buflen)
807 /* XXX: maybe escaping the entry is not necessary for notes? */
809 return log_table_entry(info->r->notes, arg, buf, buflen);
814 static int log_env_var(const ap_errorlog_info *info, const char *arg,
815 char *buf, int buflen)
818 return log_table_entry(info->r->subprocess_env, arg, buf, buflen);
823 static int core_generate_log_id(const conn_rec *c, const request_rec *r,
824 const char **idstring)
826 apr_uint64_t id, tmp;
831 if (r && r->request_time) {
832 id = (apr_uint64_t)r->request_time;
835 id = (apr_uint64_t)apr_time_now();
839 if (sizeof(pid_t) > 2) {
855 apr_uintptr_t tmp2 = (apr_uintptr_t)c->current_thread;
862 len = apr_base64_encode_len(sizeof(id)); /* includes trailing \0 */
863 encoded = apr_palloc(r ? r->pool : c->pool, len);
864 apr_base64_encode(encoded, (char *)&id, sizeof(id));
866 /* Skip the last char, it is always '=' */
867 encoded[len - 2] = '\0';
874 static void add_log_id(const conn_rec *c, const request_rec *r)
877 /* need to cast const away */
879 id = &((request_rec *)r)->log_id;
882 id = &((conn_rec *)c)->log_id;
885 ap_run_generate_log_id(c, r, id);
888 AP_DECLARE(void) ap_register_log_hooks(apr_pool_t *p)
890 ap_hook_generate_log_id(core_generate_log_id, NULL, NULL,
891 APR_HOOK_REALLY_LAST);
893 ap_register_errorlog_handler(p, "a", log_remote_address, 0);
894 ap_register_errorlog_handler(p, "A", log_local_address, 0);
895 ap_register_errorlog_handler(p, "e", log_env_var, 0);
896 ap_register_errorlog_handler(p, "E", log_apr_status, 0);
897 ap_register_errorlog_handler(p, "F", log_file_line, 0);
898 ap_register_errorlog_handler(p, "i", log_header, 0);
899 ap_register_errorlog_handler(p, "k", log_keepalives, 0);
900 ap_register_errorlog_handler(p, "l", log_loglevel, 0);
901 ap_register_errorlog_handler(p, "L", log_log_id, 0);
902 ap_register_errorlog_handler(p, "m", log_module_name, 0);
903 ap_register_errorlog_handler(p, "n", log_note, 0);
904 ap_register_errorlog_handler(p, "P", log_pid, 0);
905 ap_register_errorlog_handler(p, "t", log_ctime, 0);
906 ap_register_errorlog_handler(p, "T", log_tid, 0);
907 ap_register_errorlog_handler(p, "v", log_virtual_host, 0);
908 ap_register_errorlog_handler(p, "V", log_server_name, 0);
912 * This is used if no error log format is defined and during startup.
913 * It automatically omits the timestamp if logging to syslog.
915 static int do_errorlog_default(const ap_errorlog_info *info, char *buf,
916 int buflen, int *errstr_start, int *errstr_end,
917 const char *errstr_fmt, va_list args)
922 #ifndef AP_UNSAFE_ERROR_LOG_UNESCAPED
923 char scratch[MAX_STRING_LEN];
926 if (!info->using_syslog && !info->startup) {
928 len += log_ctime(info, "u", buf + len, buflen - len);
933 if (!info->startup) {
935 len += log_module_name(info, NULL, buf + len, buflen - len);
937 len += log_loglevel(info, NULL, buf + len, buflen - len);
938 len += cpystrn(buf + len, "] [pid ", buflen - len);
940 len += log_pid(info, NULL, buf + len, buflen - len);
943 len += cpystrn(buf + len, ":tid ", buflen - len);
944 item_len = log_tid(info, NULL, buf + len, buflen - len);
954 if (info->level >= APLOG_DEBUG) {
955 item_len = log_file_line(info, NULL, buf + len, buflen - len);
958 len += cpystrn(buf + len, ": ", buflen - len);
963 item_len = log_apr_status(info, NULL, buf + len, buflen - len);
966 len += cpystrn(buf + len, ": ", buflen - len);
971 * useragent_ip/client_ip can be client or backend server. If we have
972 * a scoreboard handle, it is likely a client.
975 len += apr_snprintf(buf + len, buflen - len,
976 info->r->connection->sbh ? "[client %s:%d] " : "[remote %s:%d] ",
977 info->r->useragent_ip,
978 info->r->useragent_addr ? info->r->useragent_addr->port : 0);
981 len += apr_snprintf(buf + len, buflen - len,
982 info->c->sbh ? "[client %s:%d] " : "[remote %s:%d] ",
984 info->c->client_addr ? info->c->client_addr->port : 0);
987 /* the actual error message */
989 #ifndef AP_UNSAFE_ERROR_LOG_UNESCAPED
990 if (apr_vsnprintf(scratch, MAX_STRING_LEN, errstr_fmt, args)) {
991 len += ap_escape_errorlog_item(buf + len, scratch,
996 len += apr_vsnprintf(buf + len, buflen - len, errstr_fmt, args);
1001 len += cpystrn(buf + len, ", referer: ", buflen - len);
1002 item_len = log_header(info, "Referer", buf + len, buflen - len);
1011 static int do_errorlog_format(apr_array_header_t *fmt, ap_errorlog_info *info,
1012 char *buf, int buflen, int *errstr_start,
1013 int *errstr_end, const char *err_fmt, va_list args)
1015 #ifndef AP_UNSAFE_ERROR_LOG_UNESCAPED
1016 char scratch[MAX_STRING_LEN];
1020 int field_start = 0;
1022 ap_errorlog_format_item *items = (ap_errorlog_format_item *)fmt->elts;
1024 AP_DEBUG_ASSERT(fmt->nelts > 0);
1025 for (i = 0; i < fmt->nelts; ++i) {
1026 ap_errorlog_format_item *item = &items[i];
1027 if (item->flags & AP_ERRORLOG_FLAG_FIELD_SEP) {
1036 if (item->flags & AP_ERRORLOG_FLAG_MESSAGE) {
1037 /* the actual error message */
1038 *errstr_start = len;
1039 #ifndef AP_UNSAFE_ERROR_LOG_UNESCAPED
1040 if (apr_vsnprintf(scratch, MAX_STRING_LEN, err_fmt, args)) {
1041 len += ap_escape_errorlog_item(buf + len, scratch,
1046 len += apr_vsnprintf(buf + len, buflen - len, err_fmt, args);
1050 else if (skipping) {
1053 else if (info->level != -1 && (int)item->min_loglevel > info->level) {
1058 int item_len = (*item->func)(info, item->arg, buf + len,
1061 if (item->flags & AP_ERRORLOG_FLAG_REQUIRED) {
1062 /* required item is empty. skip whole line */
1066 else if (item->flags & AP_ERRORLOG_FLAG_NULL_AS_HYPHEN) {
1082 static void write_logline(char *errstr, apr_size_t len, apr_file_t *logf,
1085 /* NULL if we are logging to syslog */
1087 /* Truncate for the terminator (as apr_snprintf does) */
1088 if (len > MAX_STRING_LEN - sizeof(APR_EOL_STR)) {
1089 len = MAX_STRING_LEN - sizeof(APR_EOL_STR);
1091 strcpy(errstr + len, APR_EOL_STR);
1092 apr_file_puts(errstr, logf);
1093 apr_file_flush(logf);
1097 syslog(level < LOG_PRIMASK ? level : APLOG_DEBUG, "%.*s",
1103 static void log_error_core(const char *file, int line, int module_index,
1105 apr_status_t status, const server_rec *s,
1107 const request_rec *r, apr_pool_t *pool,
1108 const char *fmt, va_list args)
1110 char errstr[MAX_STRING_LEN];
1111 apr_file_t *logf = NULL;
1112 int level_and_mask = level & APLOG_LEVELMASK;
1113 const request_rec *rmain = NULL;
1114 core_server_config *sconf = NULL;
1115 ap_errorlog_info info;
1117 /* do we need to log once-per-req or once-per-conn info? */
1118 int log_conn_info = 0, log_req_info = 0;
1119 apr_array_header_t **lines = NULL;
1121 int line_number = 0;
1124 AP_DEBUG_ASSERT(r->connection != NULL);
1130 * If we are doing stderr logging (startup), don't log messages that are
1131 * above the default server log level unless it is a startup/shutdown
1135 if ((level_and_mask != APLOG_NOTICE)
1136 && (level_and_mask > ap_default_loglevel)) {
1144 int configured_level = r ? ap_get_request_module_loglevel(r, module_index) :
1145 c ? ap_get_conn_server_module_loglevel(c, s, module_index) :
1146 ap_get_server_module_loglevel(s, module_index);
1149 * If we are doing normal logging, don't log messages that are
1150 * above the module's log level unless it is a startup/shutdown notice
1152 if ((level_and_mask != APLOG_NOTICE)
1153 && (level_and_mask > configured_level)) {
1157 logf = s->error_log;
1161 * If we are doing syslog logging, don't log messages that are
1162 * above the module's log level (including a startup/shutdown notice)
1164 if (level_and_mask > configured_level) {
1169 /* the faked server_rec from mod_cgid does not have s->module_config */
1170 if (s->module_config) {
1171 sconf = ap_get_core_module_config(s->module_config);
1172 if (c && !c->log_id) {
1173 add_log_id(c, NULL);
1174 if (sconf->error_log_conn && sconf->error_log_conn->nelts > 0)
1183 if (!rmain->log_id) {
1184 /* XXX: do we need separate log ids for subrequests? */
1185 if (sconf->error_log_req && sconf->error_log_req->nelts > 0)
1188 * XXX: potential optimization: only create log id if %L is
1189 * XXX: actually used
1191 add_log_id(c, rmain);
1203 info.using_syslog = (logf == NULL);
1204 info.startup = ((level & APLOG_STARTUP) == APLOG_STARTUP);
1208 apr_array_header_t *log_format;
1209 int len = 0, errstr_start = 0, errstr_end = 0;
1210 /* XXX: potential optimization: format common prefixes only once */
1211 if (log_conn_info) {
1212 /* once-per-connection info */
1213 if (line_number == 0) {
1214 lines = (apr_array_header_t **)sconf->error_log_conn->elts;
1218 info.module_index = APLOG_NO_MODULE;
1221 log_format = lines[line_number++];
1223 if (line_number == sconf->error_log_conn->nelts) {
1224 /* this is the last line of once-per-connection info */
1229 else if (log_req_info) {
1230 /* once-per-request info */
1231 if (line_number == 0) {
1232 lines = (apr_array_header_t **)sconf->error_log_req->elts;
1236 info.module_index = APLOG_NO_MODULE;
1239 log_format = lines[line_number++];
1241 if (line_number == sconf->error_log_req->nelts) {
1242 /* this is the last line of once-per-request info */
1248 /* the actual error message */
1251 info.level = level_and_mask;
1252 info.module_index = module_index;
1255 info.status = status;
1256 log_format = sconf ? sconf->error_log_format : NULL;
1261 * prepare and log one line
1264 if (log_format && !info.startup) {
1265 len += do_errorlog_format(log_format, &info, errstr + len,
1266 MAX_STRING_LEN - len,
1267 &errstr_start, &errstr_end, fmt, args);
1270 len += do_errorlog_default(&info, errstr + len, MAX_STRING_LEN - len,
1271 &errstr_start, &errstr_end, fmt, args);
1276 * Don't log empty lines. This can happen with once-per-conn/req
1277 * info if an item with AP_ERRORLOG_FLAG_REQUIRED is NULL.
1281 write_logline(errstr, len, logf, level_and_mask);
1285 * We don't call the error_log hook for per-request/per-conn
1286 * lines, and we only pass the actual log message, not the
1287 * prefix and suffix.
1289 errstr[errstr_end] = '\0';
1290 ap_run_error_log(&info, errstr + errstr_start);
1297 /* For internal calls to log_error_core with self-composed arg lists */
1298 static void log_error_va_glue(const char *file, int line, int module_index,
1299 int level, apr_status_t status,
1300 const server_rec *s, const conn_rec *c,
1301 const request_rec *r, apr_pool_t *pool,
1302 const char *fmt, ...)
1306 va_start(args, fmt);
1307 log_error_core(file, line, module_index, level, status, s, c, r, pool,
1312 AP_DECLARE(void) ap_log_error_(const char *file, int line, int module_index,
1313 int level, apr_status_t status,
1314 const server_rec *s, const char *fmt, ...)
1318 va_start(args, fmt);
1319 log_error_core(file, line, module_index, level, status, s, NULL, NULL,
1324 AP_DECLARE(void) ap_log_perror_(const char *file, int line, int module_index,
1325 int level, apr_status_t status, apr_pool_t *p,
1326 const char *fmt, ...)
1330 va_start(args, fmt);
1331 log_error_core(file, line, module_index, level, status, NULL, NULL, NULL,
1336 AP_DECLARE(void) ap_log_rerror_(const char *file, int line, int module_index,
1337 int level, apr_status_t status,
1338 const request_rec *r, const char *fmt, ...)
1342 va_start(args, fmt);
1343 log_error_core(file, line, module_index, level, status, r->server, NULL, r,
1347 * IF APLOG_TOCLIENT is set,
1348 * AND the error level is 'warning' or more severe,
1349 * AND there isn't already error text associated with this request,
1350 * THEN make the message text available to ErrorDocument and
1351 * other error processors.
1355 if ((level & APLOG_TOCLIENT)
1356 && ((level & APLOG_LEVELMASK) <= APLOG_WARNING)
1357 && (apr_table_get(r->notes, "error-notes") == NULL)) {
1358 apr_table_setn(r->notes, "error-notes",
1359 ap_escape_html(r->pool, apr_pvsprintf(r->pool, fmt,
1365 AP_DECLARE(void) ap_log_cserror_(const char *file, int line, int module_index,
1366 int level, apr_status_t status,
1367 const conn_rec *c, const server_rec *s,
1368 const char *fmt, ...)
1372 va_start(args, fmt);
1373 log_error_core(file, line, module_index, level, status, s, c,
1374 NULL, NULL, fmt, args);
1378 AP_DECLARE(void) ap_log_cerror_(const char *file, int line, int module_index,
1379 int level, apr_status_t status,
1380 const conn_rec *c, const char *fmt, ...)
1384 va_start(args, fmt);
1385 log_error_core(file, line, module_index, level, status, c->base_server, c,
1386 NULL, NULL, fmt, args);
1390 #define BYTES_LOGGED_PER_LINE 16
1391 #define LOG_BYTES_BUFFER_SIZE (BYTES_LOGGED_PER_LINE * 3 + 2)
1393 static void fmt_data(unsigned char *buf, const void *vdata, apr_size_t len, apr_size_t *off)
1395 const unsigned char *data = (const unsigned char *)vdata;
1396 unsigned char *chars;
1398 apr_size_t this_time = 0;
1400 memset(buf, ' ', LOG_BYTES_BUFFER_SIZE - 1);
1401 buf[LOG_BYTES_BUFFER_SIZE - 1] = '\0';
1403 chars = buf; /* start character dump here */
1404 hex = buf + BYTES_LOGGED_PER_LINE + 1; /* start hex dump here */
1405 while (*off < len && this_time < BYTES_LOGGED_PER_LINE) {
1406 unsigned char c = data[*off];
1409 && c != '\\') { /* backslash will be escaped later, which throws
1410 * off the formatting
1418 if ((c >> 4) >= 10) {
1419 *hex = 'a' + ((c >> 4) - 10);
1422 *hex = '0' + (c >> 4);
1425 if ((c & 0x0F) >= 10) {
1426 *(hex + 1) = 'a' + ((c & 0x0F) - 10);
1429 *(hex + 1) = '0' + (c & 0x0F);
1439 static void log_data_core(const char *file, int line, int module_index,
1440 int level, const server_rec *s,
1441 const conn_rec *c, const request_rec *r,
1442 const char *label, const void *data, apr_size_t len,
1445 unsigned char buf[LOG_BYTES_BUFFER_SIZE];
1449 if (!(flags & AP_LOG_DATA_SHOW_OFFSET)) {
1453 if (len > 0xffff) { /* bug in caller? */
1458 log_error_va_glue(file, line, module_index, level, APR_SUCCESS, s,
1459 c, r, NULL, "%s (%" APR_SIZE_T_FMT " bytes)",
1465 if (flags & AP_LOG_DATA_SHOW_OFFSET) {
1466 apr_snprintf(prefix, sizeof prefix, "%04x: ", (unsigned int)off);
1468 fmt_data(buf, data, len, &off);
1469 log_error_va_glue(file, line, module_index, level, APR_SUCCESS, s,
1470 c, r, NULL, "%s%s", prefix, buf);
1474 AP_DECLARE(void) ap_log_data_(const char *file, int line,
1475 int module_index, int level,
1476 const server_rec *s, const char *label,
1477 const void *data, apr_size_t len,
1480 log_data_core(file, line, module_index, level, s, NULL, NULL, label,
1484 AP_DECLARE(void) ap_log_rdata_(const char *file, int line,
1485 int module_index, int level,
1486 const request_rec *r, const char *label,
1487 const void *data, apr_size_t len,
1490 log_data_core(file, line, module_index, level, r->server, NULL, r, label,
1494 AP_DECLARE(void) ap_log_cdata_(const char *file, int line,
1495 int module_index, int level,
1496 const conn_rec *c, const char *label,
1497 const void *data, apr_size_t len,
1500 log_data_core(file, line, module_index, level, c->base_server, c, NULL,
1501 label, data, len, flags);
1504 AP_DECLARE(void) ap_log_csdata_(const char *file, int line, int module_index,
1505 int level, const conn_rec *c, const server_rec *s,
1506 const char *label, const void *data,
1507 apr_size_t len, unsigned int flags)
1509 log_data_core(file, line, module_index, level, s, c, NULL, label, data,
1513 AP_DECLARE(void) ap_log_command_line(apr_pool_t *plog, server_rec *s)
1516 process_rec *process = s->process;
1520 /* Piece together the command line from the pieces
1521 * in process->argv, with spaces in between.
1523 for (i = 0; i < process->argc; i++) {
1524 len_needed += strlen(process->argv[i]) + 1;
1527 result = (char *) apr_palloc(plog, len_needed);
1530 for (i = 0; i < process->argc; i++) {
1531 strcat(result, process->argv[i]);
1532 if ((i+1)< process->argc) {
1533 strcat(result, " ");
1536 ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, s, APLOGNO(00094)
1537 "Command line: '%s'", result);
1540 /* grab bag function to log commonly logged and shared info */
1541 AP_DECLARE(void) ap_log_mpm_common(server_rec *s)
1543 ap_log_error(APLOG_MARK, APLOG_DEBUG , 0, s, APLOGNO(02639)
1544 "Using SO_REUSEPORT: %s (%d)",
1545 ap_have_so_reuseport ? "yes" : "no",
1546 ap_num_listen_buckets);
1549 AP_DECLARE(void) ap_remove_pid(apr_pool_t *p, const char *rel_fname)
1552 const char *fname = ap_server_root_relative(p, rel_fname);
1554 if (fname != NULL) {
1555 rv = apr_file_remove(fname, p);
1556 if (rv != APR_SUCCESS) {
1557 ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, APLOGNO(00095)
1558 "failed to remove PID file %s", fname);
1561 ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf, APLOGNO(00096)
1562 "removed PID file %s (pid=%" APR_PID_T_FMT ")",
1568 AP_DECLARE(void) ap_log_pid(apr_pool_t *p, const char *filename)
1570 apr_file_t *pid_file = NULL;
1572 static pid_t saved_pid = -1;
1581 fname = ap_server_root_relative(p, filename);
1583 ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT, APR_EBADPATH,
1584 NULL, APLOGNO(00097) "Invalid PID file path %s, ignoring.", filename);
1589 if (mypid != saved_pid
1590 && apr_stat(&finfo, fname, APR_FINFO_MTIME, p) == APR_SUCCESS) {
1591 /* AP_SIG_GRACEFUL and HUP call this on each restart.
1592 * Only warn on first time through for this pid.
1594 * XXX: Could just write first time through too, although
1595 * that may screw up scripts written to do something
1596 * based on the last modification time of the pid file.
1598 ap_log_perror(APLOG_MARK, APLOG_WARNING, 0, p, APLOGNO(00098)
1599 "pid file %s overwritten -- Unclean "
1600 "shutdown of previous Apache run?",
1604 if ((rv = apr_file_open(&pid_file, fname,
1605 APR_WRITE | APR_CREATE | APR_TRUNCATE,
1606 APR_UREAD | APR_UWRITE | APR_GREAD | APR_WREAD, p))
1608 ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, APLOGNO(00099)
1609 "could not create %s", fname);
1610 ap_log_error(APLOG_MARK, APLOG_ERR, 0, NULL, APLOGNO(00100)
1611 "%s: could not log pid to file %s",
1612 ap_server_argv0, fname);
1615 apr_file_printf(pid_file, "%" APR_PID_T_FMT APR_EOL_STR, mypid);
1616 apr_file_close(pid_file);
1620 AP_DECLARE(apr_status_t) ap_read_pid(apr_pool_t *p, const char *filename,
1623 const apr_size_t BUFFER_SIZE = sizeof(long) * 3 + 2; /* see apr_ltoa */
1624 apr_file_t *pid_file = NULL;
1628 apr_size_t bytes_read;
1631 return APR_EGENERAL;
1634 fname = ap_server_root_relative(p, filename);
1636 ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT, APR_EBADPATH,
1637 NULL, APLOGNO(00101) "Invalid PID file path %s, ignoring.", filename);
1638 return APR_EGENERAL;
1641 rv = apr_file_open(&pid_file, fname, APR_READ, APR_OS_DEFAULT, p);
1642 if (rv != APR_SUCCESS) {
1646 buf = apr_palloc(p, BUFFER_SIZE);
1648 rv = apr_file_read_full(pid_file, buf, BUFFER_SIZE - 1, &bytes_read);
1649 if (rv != APR_SUCCESS && rv != APR_EOF) {
1653 /* If we fill the buffer, we're probably reading a corrupt pid file.
1654 * To be nice, let's also ensure the first char is a digit. */
1655 if (bytes_read == 0 || bytes_read == BUFFER_SIZE - 1 || !apr_isdigit(*buf)) {
1656 return APR_EGENERAL;
1659 buf[bytes_read] = '\0';
1660 *mypid = strtol(buf, &endptr, 10);
1662 apr_file_close(pid_file);
1666 AP_DECLARE(void) ap_log_assert(const char *szExp, const char *szFile,
1669 char time_str[APR_CTIME_LEN];
1671 apr_ctime(time_str, apr_time_now());
1672 ap_log_error(APLOG_MARK, APLOG_CRIT, 0, NULL, APLOGNO(00102)
1673 "[%s] file %s, line %d, assertion \"%s\" failed",
1674 time_str, szFile, nLine, szExp);
1678 /* unix assert does an abort leading to a core dump */
1683 /* piped log support */
1685 #ifdef AP_HAVE_RELIABLE_PIPED_LOGS
1686 /* forward declaration */
1687 static void piped_log_maintenance(int reason, void *data, apr_wait_t status);
1689 /* Spawn the piped logger process pl->program. */
1690 static apr_status_t piped_log_spawn(piped_log *pl)
1692 apr_procattr_t *procattr;
1693 apr_proc_t *procnew = NULL;
1694 apr_status_t status;
1696 if (((status = apr_procattr_create(&procattr, pl->p)) != APR_SUCCESS) ||
1697 ((status = apr_procattr_dir_set(procattr, ap_server_root))
1699 ((status = apr_procattr_cmdtype_set(procattr, pl->cmdtype))
1701 ((status = apr_procattr_child_in_set(procattr,
1705 ((status = apr_procattr_child_errfn_set(procattr, log_child_errfn))
1707 ((status = apr_procattr_error_check_set(procattr, 1)) != APR_SUCCESS)) {
1708 /* Something bad happened, give up and go away. */
1709 ap_log_error(APLOG_MARK, APLOG_STARTUP, status, NULL, APLOGNO(00103)
1710 "piped_log_spawn: unable to setup child process '%s'",
1716 apr_tokenize_to_argv(pl->program, &args, pl->p);
1717 procnew = apr_pcalloc(pl->p, sizeof(apr_proc_t));
1718 status = apr_proc_create(procnew, args[0], (const char * const *) args,
1719 NULL, procattr, pl->p);
1721 if (status == APR_SUCCESS) {
1723 /* procnew->in was dup2'd from pl->write_fd;
1724 * since the original fd is still valid, close the copy to
1726 apr_file_close(procnew->in);
1728 apr_proc_other_child_register(procnew, piped_log_maintenance, pl,
1729 pl->write_fd, pl->p);
1730 close_handle_in_child(pl->p, pl->read_fd);
1733 /* Something bad happened, give up and go away. */
1734 ap_log_error(APLOG_MARK, APLOG_STARTUP, status, NULL, APLOGNO(00104)
1735 "unable to start piped log program '%s'",
1744 static void piped_log_maintenance(int reason, void *data, apr_wait_t status)
1746 piped_log *pl = data;
1751 case APR_OC_REASON_DEATH:
1752 case APR_OC_REASON_LOST:
1753 pl->pid = NULL; /* in case we don't get it going again, this
1754 * tells other logic not to try to kill it
1756 apr_proc_other_child_unregister(pl);
1757 rv = ap_mpm_query(AP_MPMQ_MPM_STATE, &mpm_state);
1758 if (rv != APR_SUCCESS) {
1759 ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, APLOGNO(00105)
1760 "can't query MPM state; not restarting "
1761 "piped log program '%s'",
1764 else if (mpm_state != AP_MPMQ_STOPPING) {
1765 ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, APLOGNO(00106)
1766 "piped log program '%s' failed unexpectedly",
1768 if ((rv = piped_log_spawn(pl)) != APR_SUCCESS) {
1769 /* what can we do? This could be the error log we're having
1770 * problems opening up... */
1771 ap_log_error(APLOG_MARK, APLOG_STARTUP, rv, NULL, APLOGNO(00107)
1772 "piped_log_maintenance: unable to respawn '%s'",
1778 case APR_OC_REASON_UNWRITABLE:
1779 /* We should not kill off the pipe here, since it may only be full.
1780 * If it really is locked, we should kill it off manually. */
1783 case APR_OC_REASON_RESTART:
1784 if (pl->pid != NULL) {
1785 apr_proc_kill(pl->pid, SIGTERM);
1790 case APR_OC_REASON_UNREGISTER:
1796 static apr_status_t piped_log_cleanup_for_exec(void *data)
1798 piped_log *pl = data;
1800 apr_file_close(pl->read_fd);
1801 apr_file_close(pl->write_fd);
1806 static apr_status_t piped_log_cleanup(void *data)
1808 piped_log *pl = data;
1810 if (pl->pid != NULL) {
1811 apr_proc_kill(pl->pid, SIGTERM);
1813 return piped_log_cleanup_for_exec(data);
1817 AP_DECLARE(piped_log *) ap_open_piped_log_ex(apr_pool_t *p,
1818 const char *program,
1819 apr_cmdtype_e cmdtype)
1823 pl = apr_palloc(p, sizeof (*pl));
1825 pl->program = apr_pstrdup(p, program);
1827 pl->cmdtype = cmdtype;
1828 if (apr_file_pipe_create_ex(&pl->read_fd,
1830 APR_FULL_BLOCK, p) != APR_SUCCESS) {
1833 apr_pool_cleanup_register(p, pl, piped_log_cleanup,
1834 piped_log_cleanup_for_exec);
1835 if (piped_log_spawn(pl) != APR_SUCCESS) {
1836 apr_pool_cleanup_kill(p, pl, piped_log_cleanup);
1837 apr_file_close(pl->read_fd);
1838 apr_file_close(pl->write_fd);
1844 #else /* !AP_HAVE_RELIABLE_PIPED_LOGS */
1846 static apr_status_t piped_log_cleanup(void *data)
1848 piped_log *pl = data;
1850 apr_file_close(pl->write_fd);
1854 AP_DECLARE(piped_log *) ap_open_piped_log_ex(apr_pool_t *p,
1855 const char *program,
1856 apr_cmdtype_e cmdtype)
1859 apr_file_t *dummy = NULL;
1862 rc = log_child(p, program, &dummy, cmdtype, 0);
1863 if (rc != APR_SUCCESS) {
1864 ap_log_error(APLOG_MARK, APLOG_STARTUP, rc, NULL, APLOGNO(00108)
1865 "Couldn't start piped log process '%s'.",
1866 (program == NULL) ? "NULL" : program);
1870 pl = apr_palloc(p, sizeof (*pl));
1873 pl->write_fd = dummy;
1874 apr_pool_cleanup_register(p, pl, piped_log_cleanup, piped_log_cleanup);
1881 AP_DECLARE(piped_log *) ap_open_piped_log(apr_pool_t *p,
1882 const char *program)
1884 apr_cmdtype_e cmdtype = APR_PROGRAM_ENV;
1886 /* In 2.4 favor PROGRAM_ENV, accept "||prog" syntax for compatibility
1887 * and "|$cmd" to override the default.
1888 * Any 2.2 backport would continue to favor SHELLCMD_ENV so there
1889 * accept "||prog" to override, and "|$cmd" to ease conversion.
1891 if (*program == '|')
1893 if (*program == '$') {
1894 cmdtype = APR_SHELLCMD_ENV;
1898 return ap_open_piped_log_ex(p, program, cmdtype);
1901 AP_DECLARE(void) ap_close_piped_log(piped_log *pl)
1903 apr_pool_cleanup_run(pl->p, pl, piped_log_cleanup);
1906 AP_DECLARE(const char *) ap_parse_log_level(const char *str, int *val)
1908 char *err = "Log level keyword must be one of emerg/alert/crit/error/warn/"
1909 "notice/info/debug/trace1/.../trace8";
1915 while (priorities[i].t_name != NULL) {
1916 if (!strcasecmp(str, priorities[i].t_name)) {
1917 *val = priorities[i].t_val;
1925 AP_IMPLEMENT_HOOK_VOID(error_log,
1926 (const ap_errorlog_info *info, const char *errstr),
1929 AP_IMPLEMENT_HOOK_RUN_FIRST(int, generate_log_id,
1930 (const conn_rec *c, const request_rec *r,
1932 (c, r, id), DECLINED)