| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000-2002 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 |
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| * 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/>. |
| */ |
| |
| /* |
| * 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 |
| */ |
| |
| |
| #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, char *argv[]) |
| { |
| char buf[BUFSIZE], buf2[MAX_PATH], errbuf[ERRMSGSZ]; |
| int tLogEnd = 0, tRotation, utc_offset = 0; |
| int nMessCount = 0; |
| apr_size_t nRead, nWrite; |
| int use_strftime = 0; |
| int now; |
| char *szLogRoot; |
| apr_file_t *f_stdin, *nLogFD = NULL, *nLogFDprev = NULL; |
| apr_pool_t *pool; |
| |
| apr_initialize(); |
| atexit(apr_terminate); |
| |
| apr_pool_create(&pool, NULL); |
| if (argc < 3 || argc > 4) { |
| fprintf(stderr, |
| "Usage: %s <logfile> <rotation time in seconds> " |
| "[offset minutes from UTC]\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]); |
| #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. this time will always be a\nmultiple of the " |
| "rotation time, so you can synchronize cron scripts with it).\n" |
| "At the end of each rotation time a new log is started.\n"); |
| exit(1); |
| } |
| |
| szLogRoot = argv[1]; |
| if (argc >= 4) { |
| utc_offset = atoi(argv[3]) * 60; |
| } |
| tRotation = atoi(argv[2]); |
| 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); |
| now = (int)(apr_time_now() / APR_USEC_PER_SEC) + utc_offset; |
| if (nRead == 0) |
| exit(3); |
| if (nLogFD != NULL && (now >= tLogEnd || nRead < 0)) { |
| nLogFDprev = nLogFD; |
| nLogFD = NULL; |
| } |
| if (nLogFD == NULL) { |
| int tLogStart = (now / tRotation) * tRotation; |
| if (use_strftime) { |
| apr_time_t tNow = tLogStart * APR_USEC_PER_SEC; |
| apr_time_exp_t e; |
| apr_size_t rs; |
| |
| apr_explode_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_READ | APR_WRITE | APR_CREATE | APR_APPEND, |
| 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 witing to the file %s\n", buf2); |
| exit(2); |
| } |
| } |
| } |
| else if (nLogFDprev) { |
| apr_file_close(nLogFDprev); |
| } |
| nMessCount = 0; |
| } |
| do { |
| nWrite = nRead; |
| apr_file_write(nLogFD, buf, &nWrite); |
| } while (nWrite < 0 && errno == EINTR); |
| 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 witing to the file %s\n", buf2); |
| exit(2); |
| } |
| } |
| else { |
| nMessCount++; |
| } |
| } |
| /* Of course we never, but prevent compiler warnings */ |
| return 0; |
| } |
