mirror of
https://github.com/rsyslog/rsyslog.git
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2470f0f72b
Remove the use sizeof(char) or sizeof(uchar) in calculations for memory allocation or string length. There are no known platforms for which sizeof(char) or sizeof(uchar) is not 1, and c99 has defined sizeof(char) to be 1 (section 6.5.3.4 of c99).
224 lines
6.3 KiB
C
224 lines
6.3 KiB
C
/**
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* main rsyslog file with GPLv3 content.
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*
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* *********************** NOTE ************************
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* * Do no longer patch this file. If there is hard *
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* * need to, talk to Rainer as to how we can make any *
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* * patch be licensed under ASL 2.0. *
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* * THIS FILE WILL GO AWAY. The new main file is *
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* * rsyslogd.c. *
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* *****************************************************
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*
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* Please visit the rsyslog project at
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* http://www.rsyslog.com
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* to learn more about it and discuss any questions you may have.
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*
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* rsyslog had initially been forked from the sysklogd project.
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* I would like to express my thanks to the developers of the sysklogd
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* package - without it, I would have had a much harder start...
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*
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* Please note that while rsyslog started from the sysklogd code base,
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* it nowadays has almost nothing left in common with it. Allmost all
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* parts of the code have been rewritten.
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*
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* This Project was intiated and is maintained by
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* Rainer Gerhards <rgerhards@hq.adiscon.com>.
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*
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* rsyslog - An Enhanced syslogd Replacement.
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* Copyright 2003-2014 Rainer Gerhards and Adiscon GmbH.
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*
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* This file is part of rsyslog.
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*
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* Rsyslog is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Rsyslog is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Rsyslog. If not, see <http://www.gnu.org/licenses/>.
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*
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* A copy of the GPL can be found in the file "COPYING" in this distribution.
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*/
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#include "config.h"
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#include "rsyslog.h"
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stddef.h>
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#include <ctype.h>
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#include <limits.h>
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#include <string.h>
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#include <stdarg.h>
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#include <time.h>
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#include <assert.h>
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#ifdef OS_SOLARIS
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# include <errno.h>
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# include <fcntl.h>
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# include <stropts.h>
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# include <sys/termios.h>
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# include <sys/types.h>
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#else
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# include <libgen.h>
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# include <sys/errno.h>
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#endif
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#include <sys/ioctl.h>
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#include <sys/wait.h>
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#include <sys/file.h>
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#include <sys/resource.h>
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#include <grp.h>
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#if HAVE_SYS_TIMESPEC_H
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# include <sys/timespec.h>
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#endif
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#if HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#include <signal.h>
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#if HAVE_PATHS_H
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#include <paths.h>
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#endif
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#include "srUtils.h"
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#include "stringbuf.h"
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#include "syslogd-types.h"
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#include "template.h"
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#include "outchannel.h"
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#include "syslogd.h"
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#include "msg.h"
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#include "iminternal.h"
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#include "threads.h"
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#include "parser.h"
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#include "unicode-helper.h"
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#include "dnscache.h"
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#include "sd-daemon.h"
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#include "ratelimit.h"
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/* forward defintions from rsyslogd.c (ASL 2.0 code) */
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extern rsRetVal queryLocalHostname(void);
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extern ratelimit_t *internalMsg_ratelimiter;
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extern uchar *ConfFile;
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extern ratelimit_t *dflt_ratelimiter;
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extern void rsyslogd_usage(void);
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extern rsRetVal rsyslogdInit(void);
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extern void rsyslogd_destructAllActions(void);
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extern void rsyslogd_sigttin_handler();
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extern int forkRsyslog(void);
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void rsyslogd_submitErrMsg(const int severity, const int iErr, const uchar *msg);
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rsRetVal rsyslogd_InitGlobalClasses(void);
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rsRetVal rsyslogd_InitStdRatelimiters(void);
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rsRetVal rsyslogdInit(void);
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void rsyslogdDebugSwitch();
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void rsyslogdDoDie(int sig);
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#define LIST_DELIMITER ':' /* delimiter between two hosts */
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/* rgerhards, 2005-10-24: crunch_list is called only during option processing. So
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* it is never called once rsyslogd is running. This code
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* contains some exits, but they are considered safe because they only happen
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* during startup. Anyhow, when we review the code here, we might want to
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* reconsider the exit()s.
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* Note: this stems back to sysklogd, so we cannot put it under ASL 2.0. But
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* we may want to check if the code inside the BSD sources is exactly the same
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* (remember that sysklogd forked the BSD sources). If so, the BSD license applies
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* and permits us to move to ASL 2.0 (but we need to check the fine details).
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* Probably it is best just to rewrite this code.
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*/
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char **syslogd_crunch_list(char *list)
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{
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int count, i;
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char *p, *q;
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char **result = NULL;
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p = list;
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/* strip off trailing delimiters */
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while (p[strlen(p)-1] == LIST_DELIMITER) {
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p[strlen(p)-1] = '\0';
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}
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/* cut off leading delimiters */
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while (p[0] == LIST_DELIMITER) {
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p++;
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}
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/* count delimiters to calculate elements */
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for (count=i=0; p[i]; i++)
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if (p[i] == LIST_DELIMITER) count++;
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if ((result = (char **)MALLOC(sizeof(char *) * (count+2))) == NULL) {
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printf ("Sorry, can't get enough memory, exiting.\n");
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exit(0); /* safe exit, because only called during startup */
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}
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/*
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* We now can assume that the first and last
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* characters are different from any delimiters,
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* so we don't have to care about this.
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*/
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count = 0;
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while ((q=strchr(p, LIST_DELIMITER))) {
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result[count] = (char *) MALLOC(q - p + 1);
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if (result[count] == NULL) {
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printf ("Sorry, can't get enough memory, exiting.\n");
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exit(0); /* safe exit, because only called during startup */
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}
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strncpy(result[count], p, q - p);
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result[count][q - p] = '\0';
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p = q; p++;
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count++;
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}
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if ((result[count] = \
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(char *)MALLOC(strlen(p) + 1)) == NULL) {
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printf ("Sorry, can't get enough memory, exiting.\n");
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exit(0); /* safe exit, because only called during startup */
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}
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strcpy(result[count],p);
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result[++count] = NULL;
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return result;
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}
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#ifndef HAVE_SETSID
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/* stems back to sysklogd in whole */
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void untty(void)
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{
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int i;
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pid_t pid;
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if(!Debug) {
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/* Peng Haitao <penght@cn.fujitsu.com> contribution */
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pid = getpid();
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if (setpgid(pid, pid) < 0) {
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perror("setpgid");
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exit(1);
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}
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/* end Peng Haitao <penght@cn.fujitsu.com> contribution */
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i = open(_PATH_TTY, O_RDWR|O_CLOEXEC);
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if (i >= 0) {
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# if !defined(__hpux)
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(void) ioctl(i, (int) TIOCNOTTY, NULL);
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# else
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/* TODO: we need to implement something for HP UX! -- rgerhards, 2008-03-04 */
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/* actually, HP UX should have setsid, so the code directly above should
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* trigger. So the actual question is why it doesn't do that...
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*/
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# endif
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close(i);
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}
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}
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}
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#endif
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