diff options
Diffstat (limited to 'server/log.c')
| -rw-r--r-- | server/log.c | 753 |
1 files changed, 0 insertions, 753 deletions
diff --git a/server/log.c b/server/log.c deleted file mode 100644 index 4ba0b4c6f3..0000000000 --- a/server/log.c +++ /dev/null @@ -1,753 +0,0 @@ -/* ==================================================================== - * The Apache Software License, Version 1.1 - * - * Copyright (c) 2000-2001 The Apache Software Foundation. All rights - * reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The end-user documentation included with the redistribution, - * if any, must include the following acknowledgment: - * "This product includes software developed by the - * Apache Software Foundation (http://www.apache.org/)." - * Alternately, this acknowledgment may appear in the software itself, - * if and wherever such third-party acknowledgments normally appear. - * - * 4. The names "Apache" and "Apache Software Foundation" must - * not be used to endorse or promote products derived from this - * software without prior written permission. For written - * permission, please contact apache@apache.org. - * - * 5. Products derived from this software may not be called "Apache", - * nor may "Apache" appear in their name, without prior written - * permission of the Apache Software Foundation. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * ==================================================================== - * - * This software consists of voluntary contributions made by many - * individuals on behalf of the Apache Software Foundation. For more - * information on the Apache Software Foundation, please see - * <http://www.apache.org/>. - * - * Portions of this software are based upon public domain software - * originally written at the National Center for Supercomputing Applications, - * University of Illinois, Urbana-Champaign. - */ - -/* - * http_log.c: Dealing with the logs and errors - * - * Rob McCool - * - */ - -#include "apr.h" -#include "apr_general.h" /* for signal stuff */ -#include "apr_strings.h" -#include "apr_errno.h" -#include "apr_thread_proc.h" -#include "apr_lib.h" -#include "apr_signal.h" - -#define APR_WANT_STDIO -#define APR_WANT_STRFUNC -#include "apr_want.h" - -#if APR_HAVE_STDARG_H -#include <stdarg.h> -#endif -#if APR_HAVE_UNISTD_H -#include <unistd.h> -#endif - -#define CORE_PRIVATE - -#include "ap_config.h" -#include "httpd.h" -#include "http_config.h" -#include "http_core.h" -#include "http_log.h" -#include "http_main.h" - -typedef struct { - char *t_name; - int t_val; -} TRANS; - -#ifdef HAVE_SYSLOG - -static const TRANS facilities[] = { - {"auth", LOG_AUTH}, -#ifdef LOG_AUTHPRIV - {"authpriv",LOG_AUTHPRIV}, -#endif -#ifdef LOG_CRON - {"cron", LOG_CRON}, -#endif -#ifdef LOG_DAEMON - {"daemon", LOG_DAEMON}, -#endif -#ifdef LOG_FTP - {"ftp", LOG_FTP}, -#endif -#ifdef LOG_KERN - {"kern", LOG_KERN}, -#endif -#ifdef LOG_LPR - {"lpr", LOG_LPR}, -#endif -#ifdef LOG_MAIL - {"mail", LOG_MAIL}, -#endif -#ifdef LOG_NEWS - {"news", LOG_NEWS}, -#endif -#ifdef LOG_SYSLOG - {"syslog", LOG_SYSLOG}, -#endif -#ifdef LOG_USER - {"user", LOG_USER}, -#endif -#ifdef LOG_UUCP - {"uucp", LOG_UUCP}, -#endif -#ifdef LOG_LOCAL0 - {"local0", LOG_LOCAL0}, -#endif -#ifdef LOG_LOCAL1 - {"local1", LOG_LOCAL1}, -#endif -#ifdef LOG_LOCAL2 - {"local2", LOG_LOCAL2}, -#endif -#ifdef LOG_LOCAL3 - {"local3", LOG_LOCAL3}, -#endif -#ifdef LOG_LOCAL4 - {"local4", LOG_LOCAL4}, -#endif -#ifdef LOG_LOCAL5 - {"local5", LOG_LOCAL5}, -#endif -#ifdef LOG_LOCAL6 - {"local6", LOG_LOCAL6}, -#endif -#ifdef LOG_LOCAL7 - {"local7", LOG_LOCAL7}, -#endif - {NULL, -1}, -}; -#endif - -static const TRANS priorities[] = { - {"emerg", APLOG_EMERG}, - {"alert", APLOG_ALERT}, - {"crit", APLOG_CRIT}, - {"error", APLOG_ERR}, - {"warn", APLOG_WARNING}, - {"notice", APLOG_NOTICE}, - {"info", APLOG_INFO}, - {"debug", APLOG_DEBUG}, - {NULL, -1}, -}; - -static apr_file_t *stderr_log; - -AP_DECLARE(void) ap_open_stderr_log(apr_pool_t *p) -{ - apr_file_open_stderr(&stderr_log, p); -} - -static int log_child(apr_pool_t *p, const char *progname, - apr_file_t **fpin) -{ - /* Child process code for 'ErrorLog "|..."'; - * may want a common framework for this, since I expect it will - * be common for other foo-loggers to want this sort of thing... - */ - apr_status_t rc; - apr_procattr_t *procattr; - apr_proc_t *procnew; - -#ifdef SIGHUP - /* No concept of a child process on Win32 */ - apr_signal(SIGHUP, SIG_IGN); -#endif /* ndef SIGHUP */ - - if (((rc = apr_procattr_create(&procattr, p)) == APR_SUCCESS) && - ((rc = apr_procattr_io_set(procattr, - APR_FULL_BLOCK, - APR_NO_PIPE, - APR_NO_PIPE)) == APR_SUCCESS)) { - char **args; - const char *pname; - - apr_tokenize_to_argv(progname, &args, p); - pname = apr_pstrdup(p, args[0]); - procnew = (apr_proc_t *) apr_pcalloc(p, sizeof(*procnew)); - rc = apr_proc_create(procnew, pname, (const char * const *)args, - NULL, procattr, p); - - if (rc == APR_SUCCESS) { - apr_pool_note_subprocess(p, procnew, kill_after_timeout); - (*fpin) = procnew->in; - } - } - - return(rc); -} - -static void open_error_log(server_rec *s, apr_pool_t *p) -{ - const char *fname; - int rc; - - if (*s->error_fname == '|') { - apr_file_t *dummy = NULL; - - /* This starts a new process... */ - rc = log_child (p, s->error_fname+1, &dummy); - if (rc != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_STARTUP, rc, NULL, - "Couldn't start ErrorLog process"); - exit(1); - } - - s->error_log = dummy; - } - -#ifdef HAVE_SYSLOG - else if (!strncasecmp(s->error_fname, "syslog", 6)) { - if ((fname = strchr(s->error_fname, ':'))) { - const TRANS *fac; - - fname++; - for (fac = facilities; fac->t_name; fac++) { - if (!strcasecmp(fname, fac->t_name)) { - openlog(ap_server_argv0, LOG_NDELAY|LOG_CONS|LOG_PID, - fac->t_val); - s->error_log = NULL; - return; - } - } - } - else - openlog(ap_server_argv0, LOG_NDELAY|LOG_CONS|LOG_PID, LOG_LOCAL7); - - s->error_log = NULL; - } -#endif - else { - fname = ap_server_root_relative(p, s->error_fname); - rc = apr_file_open(&s->error_log, fname, - APR_APPEND | APR_READ | APR_WRITE | APR_CREATE, - APR_OS_DEFAULT, p); - if (rc != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_STARTUP, rc, NULL, - "%s: could not open error log file %s.", - ap_server_argv0, fname); - exit(1); - } - } -} - -void ap_open_logs(server_rec *s_main, apr_pool_t *p) -{ - apr_status_t rc = APR_SUCCESS; - server_rec *virt, *q; - int replace_stderr; - apr_file_t *errfile = NULL; - - open_error_log(s_main, p); - - replace_stderr = 1; - if (s_main->error_log) { - /* replace stderr with this new log */ - apr_file_flush(s_main->error_log); - apr_file_open_stderr(&errfile, p); - if ((rc = apr_file_dup(&errfile, s_main->error_log, p)) != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rc, s_main, - "unable to replace stderr with error_log"); - } else { - replace_stderr = 0; - } - } - /* note that stderr may still need to be replaced with something - * because it points to the old error log, or back to the tty - * of the submitter. - */ - if (replace_stderr && freopen("/dev/null", "w", stderr) == NULL) { - ap_log_error(APLOG_MARK, APLOG_CRIT, errno, s_main, - "unable to replace stderr with /dev/null"); - } - - for (virt = s_main->next; virt; virt = virt->next) { - if (virt->error_fname) { - for (q=s_main; q != virt; q = q->next) - if (q->error_fname != NULL && - strcmp(q->error_fname, virt->error_fname) == 0) - break; - if (q == virt) - open_error_log(virt, p); - else - virt->error_log = q->error_log; - } - else - virt->error_log = s_main->error_log; - } -} - -AP_DECLARE(void) ap_error_log2stderr(server_rec *s) { - apr_file_t *errfile = NULL; - - apr_file_open_stderr(&errfile, s->process->pool); - if (s->error_log != NULL) { - apr_file_dup(&(s->error_log), errfile, s->process->pool); - } -} - -static void log_error_core(const char *file, int line, int level, - apr_status_t status, const server_rec *s, - const request_rec *r, apr_pool_t *pool, - const char *fmt, va_list args) -{ - char errstr[MAX_STRING_LEN]; - size_t len; - apr_file_t *logf = NULL; - const char *referer; - int level_and_mask = level & APLOG_LEVELMASK; - - if (s == NULL) { - /* - * If we are doing stderr logging (startup), don't log messages that are - * above the default server log level unless it is a startup/shutdown - * notice - */ - if ((level_and_mask != APLOG_NOTICE) && - (level_and_mask > DEFAULT_LOGLEVEL)) - return; - logf = stderr_log; - } - else if (s->error_log) { - /* - * If we are doing normal logging, don't log messages that are - * above the server log level unless it is a startup/shutdown notice - */ - if ((level_and_mask != APLOG_NOTICE) && - (level_and_mask > s->loglevel)) - return; - logf = s->error_log; - } -#ifdef TPF - else if (tpf_child) { - /* - * If we are doing normal logging, don't log messages that are - * above the server log level unless it is a startup/shutdown notice - */ - if ((level_and_mask != APLOG_NOTICE) && - (level_and_mask > s->loglevel)) - return; - logf = stderr; - } -#endif /* TPF */ - else { - /* - * If we are doing syslog logging, don't log messages that are - * above the server log level (including a startup/shutdown notice) - */ - if (level_and_mask > s->loglevel) - return; - } - - if (logf && ((level & APLOG_STARTUP) != APLOG_STARTUP)) { - errstr[0] = '['; - apr_ctime(errstr + 1, apr_time_now()); - errstr[1 + APR_CTIME_LEN - 1] = ']'; - errstr[1 + APR_CTIME_LEN ] = ' '; - len = 1 + APR_CTIME_LEN + 1; - } else { - len = 0; - } - - if ((level & APLOG_STARTUP) != APLOG_STARTUP) { - len += apr_snprintf(errstr + len, MAX_STRING_LEN - len, - "[%s] ", priorities[level_and_mask].t_name); - } -#ifndef TPF - if (file && level_and_mask == APLOG_DEBUG) { -#ifdef _OSD_POSIX - char tmp[256]; - char *e = strrchr(file, '/'); - - /* In OSD/POSIX, the compiler returns for __FILE__ - * a string like: __FILE__="*POSIX(/usr/include/stdio.h)" - * (it even returns an absolute path for sources in - * the current directory). Here we try to strip this - * down to the basename. - */ - if (e != NULL && e[1] != '\0') { - apr_snprintf(tmp, sizeof(tmp), "%s", &e[1]); - e = &tmp[strlen(tmp)-1]; - if (*e == ')') - *e = '\0'; - file = tmp; - } -#endif /*_OSD_POSIX*/ - len += apr_snprintf(errstr + len, MAX_STRING_LEN - len, - "%s(%d): ", file, line); - } -#endif /* TPF */ - if (r && r->connection) { - /* XXX: TODO: add a method of selecting whether logged client - * addresses are in dotted quad or resolved form... dotted - * quad is the most secure, which is why I'm implementing it - * first. -djg - */ - len += apr_snprintf(errstr + len, MAX_STRING_LEN - len, - "[client %s] ", r->connection->remote_ip); - } - if (!(level & APLOG_NOERRNO) - && (status != 0)) { - char buf[120]; - len += apr_snprintf(errstr + len, MAX_STRING_LEN - len, - "(%d)%s: ", status, apr_strerror(status, buf, sizeof(buf))); - } - len += apr_vsnprintf(errstr + len, MAX_STRING_LEN - len, fmt, args); - - if (r && (referer = apr_table_get(r->headers_in, "Referer"))) { - len += apr_snprintf(errstr + len, MAX_STRING_LEN - len, - ", referer: %s", referer); - } - - /* NULL if we are logging to syslog */ - if (logf) { - /* Truncate for the terminator (as apr_snprintf does) */ - if (len > MAX_STRING_LEN - sizeof(APR_EOL_STR)) - len = MAX_STRING_LEN - sizeof(APR_EOL_STR); - strcpy(errstr + len, APR_EOL_STR); - apr_file_puts(errstr, logf); - apr_file_flush(logf); - } -#ifdef HAVE_SYSLOG - else { - syslog(level_and_mask, "%s", errstr); - } -#endif -} - -AP_DECLARE(void) ap_log_error(const char *file, int line, int level, - apr_status_t status, const server_rec *s, - const char *fmt, ...) -{ - va_list args; - - va_start(args, fmt); - log_error_core(file, line, level, status, s, NULL, NULL, fmt, args); - va_end(args); -} - -AP_DECLARE(void) ap_log_perror(const char *file, int line, int level, - apr_status_t status, apr_pool_t *p, - const char *fmt, ...) -{ - va_list args; - - va_start(args, fmt); - log_error_core(file, line, level, status, NULL, NULL, p, fmt, args); - va_end(args); -} - -AP_DECLARE(void) ap_log_rerror(const char *file, int line, int level, - apr_status_t status, const request_rec *r, - const char *fmt, ...) -{ - va_list args; - - va_start(args, fmt); - log_error_core(file, line, level, status, r->server, r, NULL, fmt, args); - /* - * IF the error level is 'warning' or more severe, - * AND there isn't already error text associated with this request, - * THEN make the message text available to ErrorDocument and - * other error processors. This can be disabled by stuffing - * something, even an empty string, into the "error-notes" cell - * before calling this routine. - */ - va_end(args); - va_start(args,fmt); - if (((level & APLOG_LEVELMASK) <= APLOG_WARNING) - && (apr_table_get(r->notes, "error-notes") == NULL)) { - apr_table_setn(r->notes, "error-notes", - ap_escape_html(r->pool, apr_pvsprintf(r->pool, fmt, - args))); - } - va_end(args); -} - -void ap_log_pid(apr_pool_t *p, const char *fname) -{ - apr_file_t *pid_file = NULL; - apr_finfo_t finfo; - static pid_t saved_pid = -1; - pid_t mypid; - apr_status_t rv; - - if (!fname) - return; - - fname = ap_server_root_relative(p, fname); - mypid = getpid(); - if (mypid != saved_pid - && apr_stat(&finfo, fname, APR_FINFO_MTIME, p) == APR_SUCCESS) { - /* WINCH and HUP call this on each restart. - * Only warn on first time through for this pid. - * - * XXX: Could just write first time through too, although - * that may screw up scripts written to do something - * based on the last modification time of the pid file. - */ - ap_log_perror(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, 0, p, - apr_psprintf(p, - "pid file %s overwritten -- Unclean shutdown of previous Apache run?", - fname) - ); - } - - if ((rv = apr_file_open(&pid_file, fname, APR_WRITE | APR_CREATE | APR_TRUNCATE, - APR_UREAD | APR_UWRITE | APR_GREAD | APR_WREAD, p)) != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, - "could not create %s", fname); - ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, NULL, - "%s: could not log pid to file %s", - ap_server_argv0, fname); - exit(1); - } - apr_file_printf(pid_file, "%ld" APR_EOL_STR, (long)mypid); - apr_file_close(pid_file); - saved_pid = mypid; -} - -AP_DECLARE(void) ap_log_assert(const char *szExp, const char *szFile, int nLine) -{ - char time_str[APR_CTIME_LEN]; - - apr_ctime(time_str, apr_time_now()); - ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL, - "[%s] file %s, line %d, assertion \"%s\" failed", - time_str, szFile, nLine, szExp); -#ifndef WIN32 - /* unix assert does an abort leading to a core dump */ - abort(); -#else - exit(1); -#endif -} - -/* piped log support */ - -#ifdef AP_HAVE_RELIABLE_PIPED_LOGS -/* forward declaration */ -static void piped_log_maintenance(int reason, void *data, apr_wait_t status); - -static int piped_log_spawn(piped_log *pl) -{ - int rc; - apr_procattr_t *procattr; - apr_proc_t *procnew = NULL; - apr_status_t status; - -#ifdef SIGHUP - apr_signal(SIGHUP, SIG_IGN); -#endif - if (((status = apr_procattr_create(&procattr, pl->p)) != APR_SUCCESS) || - ((status = apr_procattr_child_in_set(procattr, ap_piped_log_read_fd(pl), - ap_piped_log_write_fd(pl))) != APR_SUCCESS)) { - char buf[120]; - /* Something bad happened, give up and go away. */ - ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL, - "piped_log_spawn: unable to setup child process '%s': %s", - pl->program, apr_strerror(status, buf, sizeof(buf))); - rc = -1; - } - else { - char **args; - const char *pname; - - apr_tokenize_to_argv(pl->program, &args, pl->p); - pname = apr_pstrdup(pl->p, args[0]); - procnew = apr_pcalloc(pl->p, sizeof(apr_proc_t)); - rc = apr_proc_create(procnew, pname, (const char * const *) args, - NULL, procattr, pl->p); - - if (rc == APR_SUCCESS) { - /* pjr - This no longer happens inside the child, */ - /* I am assuming that if apr_proc_create was */ - /* successful that the child is running. */ - RAISE_SIGSTOP(PIPED_LOG_SPAWN); - pl->pid = procnew; - ap_piped_log_write_fd(pl) = procnew->in; - apr_proc_other_child_register(procnew, piped_log_maintenance, pl, - ap_piped_log_write_fd(pl), pl->p); - } - } - - return 0; -} - - -static void piped_log_maintenance(int reason, void *data, apr_wait_t status) -{ - piped_log *pl = data; - apr_status_t stats; - - switch (reason) { - case APR_OC_REASON_DEATH: - pl->pid = NULL; - apr_proc_other_child_unregister(pl); - if (pl->program == NULL) { - /* during a restart */ - break; - } - break; - case APR_OC_REASON_LOST: - pl->pid = NULL; - apr_proc_other_child_unregister(pl); - if (pl->program == NULL) { - /* during a restart */ - break; - } - if ((stats = piped_log_spawn(pl)) != APR_SUCCESS) { - /* what can we do? This could be the error log we're having - * problems opening up... */ - char buf[120]; - ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL, - "piped_log_maintenance: unable to respawn '%s': %s", - pl->program, apr_strerror(stats, buf, sizeof(buf))); - } - break; - - case APR_OC_REASON_UNWRITABLE: - /* We should not kill off the pipe here, since it may only be full. - * If it really is locked, we should kill it off manually. */ - break; - - case APR_OC_REASON_RESTART: - pl->program = NULL; - if (pl->pid != NULL) { - apr_proc_kill(pl->pid, SIGTERM); - } - break; - - case APR_OC_REASON_UNREGISTER: - break; - } -} - - -static apr_status_t piped_log_cleanup(void *data) -{ - piped_log *pl = data; - - if (pl->pid != NULL) { - apr_proc_kill(pl->pid, SIGTERM); - } - apr_proc_other_child_unregister(pl); - apr_file_close(ap_piped_log_read_fd(pl)); - apr_file_close(ap_piped_log_write_fd(pl)); - return APR_SUCCESS; -} - - -static apr_status_t piped_log_cleanup_for_exec(void *data) -{ - piped_log *pl = data; - - apr_file_close(ap_piped_log_read_fd(pl)); - apr_file_close(ap_piped_log_write_fd(pl)); - return APR_SUCCESS; -} - -AP_DECLARE(piped_log *) ap_open_piped_log(apr_pool_t *p, const char *program) -{ - piped_log *pl; - - pl = apr_palloc(p, sizeof (*pl)); - pl->p = p; - pl->program = apr_pstrdup(p, program); - pl->pid = NULL; - if (apr_file_pipe_create(&ap_piped_log_read_fd(pl), &ap_piped_log_write_fd(pl), p) != APR_SUCCESS) { - return NULL; - } - apr_pool_cleanup_register(p, pl, piped_log_cleanup, piped_log_cleanup_for_exec); - if (piped_log_spawn(pl) == -1) { - int save_errno = errno; - apr_pool_cleanup_kill(p, pl, piped_log_cleanup); - apr_file_close(ap_piped_log_read_fd(pl)); - apr_file_close(ap_piped_log_write_fd(pl)); - errno = save_errno; - return NULL; - } - return pl; -} - -#else /* !AP_HAVE_RELIABLE_PIPED_LOGS */ - -static apr_status_t piped_log_cleanup(void *data) -{ - piped_log *pl = data; - - apr_file_close(ap_piped_log_write_fd(pl)); - return APR_SUCCESS; -} - -AP_DECLARE(piped_log *) ap_open_piped_log(apr_pool_t *p, const char *program) -{ - piped_log *pl; - apr_file_t *dummy = NULL; - int rc; - - rc = log_child(p, program, &dummy); - if (rc != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_STARTUP, rc, NULL, - "Couldn't start piped log process"); - exit (1); - } - - pl = apr_palloc(p, sizeof (*pl)); - pl->p = p; - ap_piped_log_read_fd(pl) = NULL; - ap_piped_log_write_fd(pl) = dummy; - apr_pool_cleanup_register(p, pl, piped_log_cleanup, piped_log_cleanup); - - return pl; -} - -#endif - -AP_DECLARE(void) ap_close_piped_log(piped_log *pl) -{ - apr_pool_cleanup_run(pl->p, pl, piped_log_cleanup); -} - |