+++ /dev/null
-/* Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Simple program to rotate Apache logs without having to kill the server.
- *
- * Contributed by Ben Laurie <ben@algroup.co.uk>
- *
- * 12 Mar 1996
- *
- * Ported to APR by Mladen Turk <mturk@mappingsoft.com>
- *
- * 23 Sep 2001
- *
- * -l option added 2004-06-11
- *
- * -l causes the use of local time rather than GMT as the base for the
- * interval. NB: Using -l in an environment which changes the GMT offset
- * (such as for BST or DST) can lead to unpredictable results!
- *
- */
-
-
-#include "apr.h"
-#include "apr_lib.h"
-#include "apr_strings.h"
-#include "apr_errno.h"
-#include "apr_file_io.h"
-#include "apr_file_info.h"
-#include "apr_general.h"
-#include "apr_time.h"
-
-#if APR_HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#if APR_HAVE_STRING_H
-#include <string.h>
-#endif
-#if APR_HAVE_STRINGS_H
-#include <strings.h>
-#endif
-
-#define BUFSIZE 65536
-#define ERRMSGSZ 82
-
-#ifndef MAX_PATH
-#define MAX_PATH 1024
-#endif
-
-int main (int argc, const char * const argv[])
-{
- char buf[BUFSIZE], buf2[MAX_PATH], errbuf[ERRMSGSZ];
- int tLogEnd = 0, tRotation = 0, utc_offset = 0;
- unsigned int sRotation = 0;
- int nMessCount = 0;
- apr_size_t nRead, nWrite;
- int use_strftime = 0;
- int use_localtime = 0;
- int now = 0;
- const char *szLogRoot;
- apr_file_t *f_stdin, *nLogFD = NULL, *nLogFDprev = NULL;
- apr_pool_t *pool;
- char *ptr = NULL;
- int argBase = 0;
- int argFile = 1;
- int argIntv = 2;
- int argOffset = 3;
-
- apr_app_initialize(&argc, &argv, NULL);
- atexit(apr_terminate);
-
- apr_pool_create(&pool, NULL);
- if ((argc > 2) && (strcmp(argv[1], "-l") == 0)) {
- argBase++;
- argFile += argBase;
- argIntv += argBase;
- argOffset += argBase;
- use_localtime = 1;
- }
- if (argc < (argBase + 3) || argc > (argBase + 4)) {
- fprintf(stderr,
- "Usage: %s [-l] <logfile> <rotation time in seconds> "
- "[offset minutes from UTC] or <rotation size in megabytes>\n\n",
- argv[0]);
-#ifdef OS2
- fprintf(stderr,
- "Add this:\n\nTransferLog \"|%s.exe /some/where 86400\"\n\n",
- argv[0]);
-#else
- fprintf(stderr,
- "Add this:\n\nTransferLog \"|%s /some/where 86400\"\n\n",
- argv[0]);
- fprintf(stderr,
- "or \n\nTransferLog \"|%s /some/where 5M\"\n\n", argv[0]);
-#endif
- fprintf(stderr,
- "to httpd.conf. The generated name will be /some/where.nnnn "
- "where nnnn is the\nsystem time at which the log nominally "
- "starts (N.B. if using a rotation time,\nthe time will always "
- "be a multiple of the rotation time, so you can synchronize\n"
- "cron scripts with it). At the end of each rotation time or "
- "when the file size\nis reached a new log is started.\n");
- exit(1);
- }
-
- szLogRoot = argv[argFile];
-
- ptr = strchr(argv[argIntv], 'M');
- if (ptr) {
- if (*(ptr+1) == '\0') {
- sRotation = atoi(argv[argIntv]) * 1048576;
- }
- if (sRotation == 0) {
- fprintf(stderr, "Invalid rotation size parameter\n");
- exit(1);
- }
- }
- else {
- if (argc >= (argBase + 4)) {
- utc_offset = atoi(argv[argOffset]) * 60;
- }
- tRotation = atoi(argv[argIntv]);
- if (tRotation <= 0) {
- fprintf(stderr, "Rotation time must be > 0\n");
- exit(6);
- }
- }
-
- use_strftime = (strchr(szLogRoot, '%') != NULL);
- if (apr_file_open_stdin(&f_stdin, pool) != APR_SUCCESS) {
- fprintf(stderr, "Unable to open stdin\n");
- exit(1);
- }
-
- for (;;) {
- nRead = sizeof(buf);
- if (apr_file_read(f_stdin, buf, &nRead) != APR_SUCCESS) {
- exit(3);
- }
- if (tRotation) {
- /*
- * Check for our UTC offset every time through the loop, since
- * it might change if there's a switch between standard and
- * daylight savings time.
- */
- if (use_localtime) {
- apr_time_exp_t lt;
- apr_time_exp_lt(<, apr_time_now());
- utc_offset = lt.tm_gmtoff;
- }
- now = (int)(apr_time_now() / APR_USEC_PER_SEC) + utc_offset;
- if (nLogFD != NULL && now >= tLogEnd) {
- nLogFDprev = nLogFD;
- nLogFD = NULL;
- }
- }
- else if (sRotation) {
- apr_finfo_t finfo;
- apr_off_t current_size = -1;
-
- if ((nLogFD != NULL) &&
- (apr_file_info_get(&finfo, APR_FINFO_SIZE, nLogFD) == APR_SUCCESS)) {
- current_size = finfo.size;
- }
-
- if (current_size > sRotation) {
- nLogFDprev = nLogFD;
- nLogFD = NULL;
- }
- }
- else {
- fprintf(stderr, "No rotation time or size specified\n");
- exit(2);
- }
-
- if (nLogFD == NULL) {
- int tLogStart;
-
- if (tRotation) {
- tLogStart = (now / tRotation) * tRotation;
- }
- else {
- tLogStart = (int)apr_time_sec(apr_time_now());
- }
-
- if (use_strftime) {
- apr_time_t tNow = apr_time_from_sec(tLogStart);
- apr_time_exp_t e;
- apr_size_t rs;
-
- apr_time_exp_gmt(&e, tNow);
- apr_strftime(buf2, &rs, sizeof(buf2), szLogRoot, &e);
- }
- else {
- sprintf(buf2, "%s.%010d", szLogRoot, tLogStart);
- }
- tLogEnd = tLogStart + tRotation;
- apr_file_open(&nLogFD, buf2,
- APR_APPEND | APR_WRITE | APR_CREATE | APR_LARGEFILE,
- APR_OS_DEFAULT, pool);
- if (nLogFD == NULL) {
- /* Uh-oh. Failed to open the new log file. Try to clear
- * the previous log file, note the lost log entries,
- * and keep on truckin'. */
- if (nLogFDprev == NULL) {
- fprintf(stderr, "1 Previous file handle doesn't exists %s\n", buf2);
- exit(2);
- }
- else {
- nLogFD = nLogFDprev;
- sprintf(errbuf,
- "Resetting log file due to error opening "
- "new log file. %10d messages lost.\n",
- nMessCount);
- nWrite = strlen(errbuf);
- apr_file_trunc(nLogFD, 0);
- if (apr_file_write(nLogFD, errbuf, &nWrite) != APR_SUCCESS) {
- fprintf(stderr, "Error writing to the file %s\n", buf2);
- exit(2);
- }
- }
- }
- else if (nLogFDprev) {
- apr_file_close(nLogFDprev);
- }
- nMessCount = 0;
- }
- nWrite = nRead;
- apr_file_write(nLogFD, buf, &nWrite);
- if (nWrite != nRead) {
- nMessCount++;
- sprintf(errbuf,
- "Error writing to log file. "
- "%10d messages lost.\n",
- nMessCount);
- nWrite = strlen(errbuf);
- apr_file_trunc(nLogFD, 0);
- if (apr_file_write(nLogFD, errbuf, &nWrite) != APR_SUCCESS) {
- fprintf(stderr, "Error writing to the file %s\n", buf2);
- exit(2);
- }
- }
- else {
- nMessCount++;
- }
- }
- /* Of course we never, but prevent compiler warnings */
- return 0;
-}
Code Review / bottlenecks.git / blobdiff