diff options
Diffstat (limited to 'rubbos/app/httpd-2.0.64/support/rotatelogs.c')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/support/rotatelogs.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/support/rotatelogs.c b/rubbos/app/httpd-2.0.64/support/rotatelogs.c new file mode 100644 index 00000000..e7b3a0c5 --- /dev/null +++ b/rubbos/app/httpd-2.0.64/support/rotatelogs.c @@ -0,0 +1,262 @@ +/* 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; +} |