2665 lines
70 KiB
C
2665 lines
70 KiB
C
/*-
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* ------+---------+---------+-------- + --------+---------+---------+---------*
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* This file includes significant modifications done by:
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* Copyright (c) 2003, 2004 - Garance Alistair Drosehn <gad@FreeBSD.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* ------+---------+---------+-------- + --------+---------+---------+---------*
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*/
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/*
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* This file contains changes from the Open Software Foundation.
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*/
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/*
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* Copyright 1988, 1989 by the Massachusetts Institute of Technology
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
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* used in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission. M.I.T. and the M.I.T.
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* S.I.P.B. make no representations about the suitability of this software
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* for any purpose. It is provided "as is" without express or implied
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* warranty.
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*
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*/
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/*
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* newsyslog - roll over selected logs at the appropriate time, keeping the a
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* specified number of backup files around.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#define OSF
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <assert.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <fnmatch.h>
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#include <glob.h>
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#include <grp.h>
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#include <paths.h>
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#include <pwd.h>
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#include <signal.h>
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#include <stdio.h>
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#include <libgen.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "pathnames.h"
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#include "extern.h"
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/*
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* Compression suffixes
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*/
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#ifndef COMPRESS_SUFFIX_GZ
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#define COMPRESS_SUFFIX_GZ ".gz"
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#endif
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#ifndef COMPRESS_SUFFIX_BZ2
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#define COMPRESS_SUFFIX_BZ2 ".bz2"
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#endif
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#ifndef COMPRESS_SUFFIX_XZ
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#define COMPRESS_SUFFIX_XZ ".xz"
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#endif
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#define COMPRESS_SUFFIX_MAXLEN MAX(MAX(sizeof(COMPRESS_SUFFIX_GZ),sizeof(COMPRESS_SUFFIX_BZ2)),sizeof(COMPRESS_SUFFIX_XZ))
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/*
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* Compression types
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*/
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#define COMPRESS_TYPES 4 /* Number of supported compression types */
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#define COMPRESS_NONE 0
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#define COMPRESS_GZIP 1
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#define COMPRESS_BZIP2 2
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#define COMPRESS_XZ 3
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/*
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* Bit-values for the 'flags' parsed from a config-file entry.
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*/
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#define CE_BINARY 0x0008 /* Logfile is in binary, do not add status */
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/* messages to logfile(s) when rotating. */
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#define CE_NOSIGNAL 0x0010 /* There is no process to signal when */
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/* trimming this file. */
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#define CE_TRIMAT 0x0020 /* trim file at a specific time. */
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#define CE_GLOB 0x0040 /* name of the log is file name pattern. */
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#define CE_SIGNALGROUP 0x0080 /* Signal a process-group instead of a single */
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/* process when trimming this file. */
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#define CE_CREATE 0x0100 /* Create the log file if it does not exist. */
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#define CE_NODUMP 0x0200 /* Set 'nodump' on newly created log file. */
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#define CE_PID2CMD 0x0400 /* Replace PID file with a shell command.*/
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#define MIN_PID 5 /* Don't touch pids lower than this */
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#define MAX_PID 99999 /* was lower, see /usr/include/sys/proc.h */
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#define kbytes(size) (((size) + 1023) >> 10)
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#define DEFAULT_MARKER "<default>"
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#define DEBUG_MARKER "<debug>"
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#define INCLUDE_MARKER "<include>"
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#define DEFAULT_TIMEFNAME_FMT "%Y%m%dT%H%M%S"
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#define MAX_OLDLOGS 65536 /* Default maximum number of old logfiles */
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struct compress_types {
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const char *flag; /* Flag in configuration file */
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const char *suffix; /* Compression suffix */
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const char *path; /* Path to compression program */
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};
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static const struct compress_types compress_type[COMPRESS_TYPES] = {
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{ "", "", "" }, /* no compression */
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{ "Z", COMPRESS_SUFFIX_GZ, _PATH_GZIP }, /* gzip compression */
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{ "J", COMPRESS_SUFFIX_BZ2, _PATH_BZIP2 }, /* bzip2 compression */
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{ "X", COMPRESS_SUFFIX_XZ, _PATH_XZ } /* xz compression */
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};
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struct conf_entry {
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STAILQ_ENTRY(conf_entry) cf_nextp;
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char *log; /* Name of the log */
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char *pid_cmd_file; /* PID or command file */
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char *r_reason; /* The reason this file is being rotated */
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int firstcreate; /* Creating log for the first time (-C). */
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int rotate; /* Non-zero if this file should be rotated */
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int fsize; /* size found for the log file */
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uid_t uid; /* Owner of log */
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gid_t gid; /* Group of log */
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int numlogs; /* Number of logs to keep */
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int trsize; /* Size cutoff to trigger trimming the log */
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int hours; /* Hours between log trimming */
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struct ptime_data *trim_at; /* Specific time to do trimming */
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unsigned int permissions; /* File permissions on the log */
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int flags; /* CE_BINARY */
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int compress; /* Compression */
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int sig; /* Signal to send */
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int def_cfg; /* Using the <default> rule for this file */
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};
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struct sigwork_entry {
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SLIST_ENTRY(sigwork_entry) sw_nextp;
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int sw_signum; /* the signal to send */
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int sw_pidok; /* true if pid value is valid */
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pid_t sw_pid; /* the process id from the PID file */
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const char *sw_pidtype; /* "daemon" or "process group" */
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int sw_runcmd; /* run command or send PID to signal */
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char sw_fname[1]; /* file the PID was read from or shell cmd */
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};
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struct zipwork_entry {
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SLIST_ENTRY(zipwork_entry) zw_nextp;
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const struct conf_entry *zw_conf; /* for chown/perm/flag info */
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const struct sigwork_entry *zw_swork; /* to know success of signal */
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int zw_fsize; /* size of the file to compress */
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char zw_fname[1]; /* the file to compress */
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};
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struct include_entry {
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STAILQ_ENTRY(include_entry) inc_nextp;
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const char *file; /* Name of file to process */
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};
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struct oldlog_entry {
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char *fname; /* Filename of the log file */
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time_t t; /* Parsed timestamp of the logfile */
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};
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typedef enum {
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FREE_ENT, KEEP_ENT
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} fk_entry;
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STAILQ_HEAD(cflist, conf_entry);
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static SLIST_HEAD(swlisthead, sigwork_entry) swhead =
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SLIST_HEAD_INITIALIZER(swhead);
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static SLIST_HEAD(zwlisthead, zipwork_entry) zwhead =
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SLIST_HEAD_INITIALIZER(zwhead);
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STAILQ_HEAD(ilist, include_entry);
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int dbg_at_times; /* -D Show details of 'trim_at' code */
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static int archtodir = 0; /* Archive old logfiles to other directory */
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static int createlogs; /* Create (non-GLOB) logfiles which do not */
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/* already exist. 1=='for entries with */
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/* C flag', 2=='for all entries'. */
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int verbose = 0; /* Print out what's going on */
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static int needroot = 1; /* Root privs are necessary */
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int noaction = 0; /* Don't do anything, just show it */
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static int norotate = 0; /* Don't rotate */
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static int nosignal; /* Do not send any signals */
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static int enforcepid = 0; /* If PID file does not exist or empty, do nothing */
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static int force = 0; /* Force the trim no matter what */
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static int rotatereq = 0; /* -R = Always rotate the file(s) as given */
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/* on the command (this also requires */
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/* that a list of files *are* given on */
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/* the run command). */
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static char *requestor; /* The name given on a -R request */
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static char *timefnamefmt = NULL;/* Use time based filenames instead of .0 */
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static char *archdirname; /* Directory path to old logfiles archive */
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static char *destdir = NULL; /* Directory to treat at root for logs */
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static const char *conf; /* Configuration file to use */
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struct ptime_data *dbg_timenow; /* A "timenow" value set via -D option */
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static struct ptime_data *timenow; /* The time to use for checking at-fields */
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#define DAYTIME_LEN 16
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static char daytime[DAYTIME_LEN];/* The current time in human readable form,
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* used for rotation-tracking messages. */
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static char hostname[MAXHOSTNAMELEN]; /* hostname */
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static const char *path_syslogpid = _PATH_SYSLOGPID;
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static struct cflist *get_worklist(char **files);
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static void parse_file(FILE *cf, struct cflist *work_p, struct cflist *glob_p,
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struct conf_entry *defconf_p, struct ilist *inclist);
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static void add_to_queue(const char *fname, struct ilist *inclist);
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static char *sob(char *p);
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static char *son(char *p);
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static int isnumberstr(const char *);
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static int isglobstr(const char *);
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static char *missing_field(char *p, char *errline);
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static void change_attrs(const char *, const struct conf_entry *);
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static const char *get_logfile_suffix(const char *logfile);
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static fk_entry do_entry(struct conf_entry *);
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static fk_entry do_rotate(const struct conf_entry *);
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static void do_sigwork(struct sigwork_entry *);
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static void do_zipwork(struct zipwork_entry *);
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static struct sigwork_entry *
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save_sigwork(const struct conf_entry *);
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static struct zipwork_entry *
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save_zipwork(const struct conf_entry *, const struct
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sigwork_entry *, int, const char *);
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static void set_swpid(struct sigwork_entry *, const struct conf_entry *);
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static int sizefile(const char *);
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static void expand_globs(struct cflist *work_p, struct cflist *glob_p);
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static void free_clist(struct cflist *list);
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static void free_entry(struct conf_entry *ent);
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static struct conf_entry *init_entry(const char *fname,
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struct conf_entry *src_entry);
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static void parse_args(int argc, char **argv);
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static int parse_doption(const char *doption);
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static void usage(void);
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static int log_trim(const char *logname, const struct conf_entry *log_ent);
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static int age_old_log(const char *file);
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static void savelog(char *from, char *to);
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static void createdir(const struct conf_entry *ent, char *dirpart);
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static void createlog(const struct conf_entry *ent);
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/*
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* All the following take a parameter of 'int', but expect values in the
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* range of unsigned char. Define wrappers which take values of type 'char',
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* whether signed or unsigned, and ensure they end up in the right range.
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*/
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#define isdigitch(Anychar) isdigit((u_char)(Anychar))
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#define isprintch(Anychar) isprint((u_char)(Anychar))
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#define isspacech(Anychar) isspace((u_char)(Anychar))
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#define tolowerch(Anychar) tolower((u_char)(Anychar))
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int
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main(int argc, char **argv)
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{
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struct cflist *worklist;
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struct conf_entry *p;
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struct sigwork_entry *stmp;
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struct zipwork_entry *ztmp;
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SLIST_INIT(&swhead);
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SLIST_INIT(&zwhead);
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parse_args(argc, argv);
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argc -= optind;
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argv += optind;
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if (needroot && getuid() && geteuid())
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errx(1, "must have root privs");
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worklist = get_worklist(argv);
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/*
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* Rotate all the files which need to be rotated. Note that
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* some users have *hundreds* of entries in newsyslog.conf!
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*/
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while (!STAILQ_EMPTY(worklist)) {
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p = STAILQ_FIRST(worklist);
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STAILQ_REMOVE_HEAD(worklist, cf_nextp);
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if (do_entry(p) == FREE_ENT)
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free_entry(p);
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}
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/*
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* Send signals to any processes which need a signal to tell
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* them to close and re-open the log file(s) we have rotated.
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* Note that zipwork_entries include pointers to these
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* sigwork_entry's, so we can not free the entries here.
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*/
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if (!SLIST_EMPTY(&swhead)) {
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if (noaction || verbose)
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printf("Signal all daemon process(es)...\n");
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SLIST_FOREACH(stmp, &swhead, sw_nextp)
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do_sigwork(stmp);
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if (noaction)
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printf("\tsleep 10\n");
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else {
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if (verbose)
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printf("Pause 10 seconds to allow daemon(s)"
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" to close log file(s)\n");
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sleep(10);
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}
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}
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/*
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* Compress all files that we're expected to compress, now
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* that all processes should have closed the files which
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* have been rotated.
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*/
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if (!SLIST_EMPTY(&zwhead)) {
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if (noaction || verbose)
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printf("Compress all rotated log file(s)...\n");
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while (!SLIST_EMPTY(&zwhead)) {
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ztmp = SLIST_FIRST(&zwhead);
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do_zipwork(ztmp);
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SLIST_REMOVE_HEAD(&zwhead, zw_nextp);
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free(ztmp);
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}
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}
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/* Now free all the sigwork entries. */
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while (!SLIST_EMPTY(&swhead)) {
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stmp = SLIST_FIRST(&swhead);
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SLIST_REMOVE_HEAD(&swhead, sw_nextp);
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free(stmp);
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}
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while (wait(NULL) > 0 || errno == EINTR)
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;
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return (0);
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}
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static struct conf_entry *
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init_entry(const char *fname, struct conf_entry *src_entry)
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{
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struct conf_entry *tempwork;
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if (verbose > 4)
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printf("\t--> [creating entry for %s]\n", fname);
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tempwork = malloc(sizeof(struct conf_entry));
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if (tempwork == NULL)
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err(1, "malloc of conf_entry for %s", fname);
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if (destdir == NULL || fname[0] != '/')
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tempwork->log = strdup(fname);
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else
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asprintf(&tempwork->log, "%s%s", destdir, fname);
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if (tempwork->log == NULL)
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err(1, "strdup for %s", fname);
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if (src_entry != NULL) {
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tempwork->pid_cmd_file = NULL;
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if (src_entry->pid_cmd_file)
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tempwork->pid_cmd_file = strdup(src_entry->pid_cmd_file);
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tempwork->r_reason = NULL;
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tempwork->firstcreate = 0;
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tempwork->rotate = 0;
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tempwork->fsize = -1;
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tempwork->uid = src_entry->uid;
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tempwork->gid = src_entry->gid;
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tempwork->numlogs = src_entry->numlogs;
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tempwork->trsize = src_entry->trsize;
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tempwork->hours = src_entry->hours;
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tempwork->trim_at = NULL;
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if (src_entry->trim_at != NULL)
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tempwork->trim_at = ptime_init(src_entry->trim_at);
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tempwork->permissions = src_entry->permissions;
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tempwork->flags = src_entry->flags;
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tempwork->compress = src_entry->compress;
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tempwork->sig = src_entry->sig;
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tempwork->def_cfg = src_entry->def_cfg;
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} else {
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/* Initialize as a "do-nothing" entry */
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tempwork->pid_cmd_file = NULL;
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tempwork->r_reason = NULL;
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tempwork->firstcreate = 0;
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tempwork->rotate = 0;
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tempwork->fsize = -1;
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tempwork->uid = (uid_t)-1;
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tempwork->gid = (gid_t)-1;
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tempwork->numlogs = 1;
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tempwork->trsize = -1;
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tempwork->hours = -1;
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tempwork->trim_at = NULL;
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tempwork->permissions = 0;
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tempwork->flags = 0;
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tempwork->compress = COMPRESS_NONE;
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tempwork->sig = SIGHUP;
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tempwork->def_cfg = 0;
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}
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return (tempwork);
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}
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|
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static void
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free_entry(struct conf_entry *ent)
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{
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if (ent == NULL)
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return;
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if (ent->log != NULL) {
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if (verbose > 4)
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printf("\t--> [freeing entry for %s]\n", ent->log);
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free(ent->log);
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ent->log = NULL;
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}
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if (ent->pid_cmd_file != NULL) {
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free(ent->pid_cmd_file);
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ent->pid_cmd_file = NULL;
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}
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if (ent->r_reason != NULL) {
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free(ent->r_reason);
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ent->r_reason = NULL;
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}
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if (ent->trim_at != NULL) {
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ptime_free(ent->trim_at);
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ent->trim_at = NULL;
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}
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free(ent);
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}
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static void
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free_clist(struct cflist *list)
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{
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struct conf_entry *ent;
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while (!STAILQ_EMPTY(list)) {
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ent = STAILQ_FIRST(list);
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STAILQ_REMOVE_HEAD(list, cf_nextp);
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free_entry(ent);
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}
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|
|
|
free(list);
|
|
list = NULL;
|
|
}
|
|
|
|
static fk_entry
|
|
do_entry(struct conf_entry * ent)
|
|
{
|
|
#define REASON_MAX 80
|
|
int modtime;
|
|
fk_entry free_or_keep;
|
|
double diffsecs;
|
|
char temp_reason[REASON_MAX];
|
|
int oversized;
|
|
|
|
free_or_keep = FREE_ENT;
|
|
if (verbose)
|
|
printf("%s <%d%s>: ", ent->log, ent->numlogs,
|
|
compress_type[ent->compress].flag);
|
|
ent->fsize = sizefile(ent->log);
|
|
oversized = ((ent->trsize > 0) && (ent->fsize >= ent->trsize));
|
|
modtime = age_old_log(ent->log);
|
|
ent->rotate = 0;
|
|
ent->firstcreate = 0;
|
|
if (ent->fsize < 0) {
|
|
/*
|
|
* If either the C flag or the -C option was specified,
|
|
* and if we won't be creating the file, then have the
|
|
* verbose message include a hint as to why the file
|
|
* will not be created.
|
|
*/
|
|
temp_reason[0] = '\0';
|
|
if (createlogs > 1)
|
|
ent->firstcreate = 1;
|
|
else if ((ent->flags & CE_CREATE) && createlogs)
|
|
ent->firstcreate = 1;
|
|
else if (ent->flags & CE_CREATE)
|
|
strlcpy(temp_reason, " (no -C option)", REASON_MAX);
|
|
else if (createlogs)
|
|
strlcpy(temp_reason, " (no C flag)", REASON_MAX);
|
|
|
|
if (ent->firstcreate) {
|
|
if (verbose)
|
|
printf("does not exist -> will create.\n");
|
|
createlog(ent);
|
|
} else if (verbose) {
|
|
printf("does not exist, skipped%s.\n", temp_reason);
|
|
}
|
|
} else {
|
|
if (ent->flags & CE_TRIMAT && !force && !rotatereq &&
|
|
!oversized) {
|
|
diffsecs = ptimeget_diff(timenow, ent->trim_at);
|
|
if (diffsecs < 0.0) {
|
|
/* trim_at is some time in the future. */
|
|
if (verbose) {
|
|
ptime_adjust4dst(ent->trim_at,
|
|
timenow);
|
|
printf("--> will trim at %s",
|
|
ptimeget_ctime(ent->trim_at));
|
|
}
|
|
return (free_or_keep);
|
|
} else if (diffsecs >= 3600.0) {
|
|
/*
|
|
* trim_at is more than an hour in the past,
|
|
* so find the next valid trim_at time, and
|
|
* tell the user what that will be.
|
|
*/
|
|
if (verbose && dbg_at_times)
|
|
printf("\n\t--> prev trim at %s\t",
|
|
ptimeget_ctime(ent->trim_at));
|
|
if (verbose) {
|
|
ptimeset_nxtime(ent->trim_at);
|
|
printf("--> will trim at %s",
|
|
ptimeget_ctime(ent->trim_at));
|
|
}
|
|
return (free_or_keep);
|
|
} else if (verbose && noaction && dbg_at_times) {
|
|
/*
|
|
* If we are just debugging at-times, then
|
|
* a detailed message is helpful. Also
|
|
* skip "doing" any commands, since they
|
|
* would all be turned off by no-action.
|
|
*/
|
|
printf("\n\t--> timematch at %s",
|
|
ptimeget_ctime(ent->trim_at));
|
|
return (free_or_keep);
|
|
} else if (verbose && ent->hours <= 0) {
|
|
printf("--> time is up\n");
|
|
}
|
|
}
|
|
if (verbose && (ent->trsize > 0))
|
|
printf("size (Kb): %d [%d] ", ent->fsize, ent->trsize);
|
|
if (verbose && (ent->hours > 0))
|
|
printf(" age (hr): %d [%d] ", modtime, ent->hours);
|
|
|
|
/*
|
|
* Figure out if this logfile needs to be rotated.
|
|
*/
|
|
temp_reason[0] = '\0';
|
|
if (rotatereq) {
|
|
ent->rotate = 1;
|
|
snprintf(temp_reason, REASON_MAX, " due to -R from %s",
|
|
requestor);
|
|
} else if (force) {
|
|
ent->rotate = 1;
|
|
snprintf(temp_reason, REASON_MAX, " due to -F request");
|
|
} else if (oversized) {
|
|
ent->rotate = 1;
|
|
snprintf(temp_reason, REASON_MAX, " due to size>%dK",
|
|
ent->trsize);
|
|
} else if (ent->hours <= 0 && (ent->flags & CE_TRIMAT)) {
|
|
ent->rotate = 1;
|
|
} else if ((ent->hours > 0) && ((modtime >= ent->hours) ||
|
|
(modtime < 0))) {
|
|
ent->rotate = 1;
|
|
}
|
|
|
|
/*
|
|
* If the file needs to be rotated, then rotate it.
|
|
*/
|
|
if (ent->rotate && !norotate) {
|
|
if (temp_reason[0] != '\0')
|
|
ent->r_reason = strdup(temp_reason);
|
|
if (verbose)
|
|
printf("--> trimming log....\n");
|
|
if (noaction && !verbose)
|
|
printf("%s <%d%s>: trimming\n", ent->log,
|
|
ent->numlogs,
|
|
compress_type[ent->compress].flag);
|
|
free_or_keep = do_rotate(ent);
|
|
} else {
|
|
if (verbose)
|
|
printf("--> skipping\n");
|
|
}
|
|
}
|
|
return (free_or_keep);
|
|
#undef REASON_MAX
|
|
}
|
|
|
|
static void
|
|
parse_args(int argc, char **argv)
|
|
{
|
|
int ch;
|
|
char *p;
|
|
|
|
timenow = ptime_init(NULL);
|
|
ptimeset_time(timenow, time(NULL));
|
|
strlcpy(daytime, ptimeget_ctime(timenow) + 4, DAYTIME_LEN);
|
|
|
|
/* Let's get our hostname */
|
|
(void)gethostname(hostname, sizeof(hostname));
|
|
|
|
/* Truncate domain */
|
|
if ((p = strchr(hostname, '.')) != NULL)
|
|
*p = '\0';
|
|
|
|
/* Parse command line options. */
|
|
while ((ch = getopt(argc, argv, "a:d:f:nrst:vCD:FNPR:S:")) != -1)
|
|
switch (ch) {
|
|
case 'a':
|
|
archtodir++;
|
|
archdirname = optarg;
|
|
break;
|
|
case 'd':
|
|
destdir = optarg;
|
|
break;
|
|
case 'f':
|
|
conf = optarg;
|
|
break;
|
|
case 'n':
|
|
noaction++;
|
|
/* FALLTHROUGH */
|
|
case 'r':
|
|
needroot = 0;
|
|
break;
|
|
case 's':
|
|
nosignal = 1;
|
|
break;
|
|
case 't':
|
|
if (optarg[0] == '\0' ||
|
|
strcmp(optarg, "DEFAULT") == 0)
|
|
timefnamefmt = strdup(DEFAULT_TIMEFNAME_FMT);
|
|
else
|
|
timefnamefmt = strdup(optarg);
|
|
break;
|
|
case 'v':
|
|
verbose++;
|
|
break;
|
|
case 'C':
|
|
/* Useful for things like rc.diskless... */
|
|
createlogs++;
|
|
break;
|
|
case 'D':
|
|
/*
|
|
* Set some debugging option. The specific option
|
|
* depends on the value of optarg. These options
|
|
* may come and go without notice or documentation.
|
|
*/
|
|
if (parse_doption(optarg))
|
|
break;
|
|
usage();
|
|
/* NOTREACHED */
|
|
case 'F':
|
|
force++;
|
|
break;
|
|
case 'N':
|
|
norotate++;
|
|
break;
|
|
case 'P':
|
|
enforcepid++;
|
|
break;
|
|
case 'R':
|
|
rotatereq++;
|
|
requestor = strdup(optarg);
|
|
break;
|
|
case 'S':
|
|
path_syslogpid = optarg;
|
|
break;
|
|
case 'm': /* Used by OpenBSD for "monitor mode" */
|
|
default:
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
if (force && norotate) {
|
|
warnx("Only one of -F and -N may be specified.");
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
if (rotatereq) {
|
|
if (optind == argc) {
|
|
warnx("At least one filename must be given when -R is specified.");
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
/* Make sure "requestor" value is safe for a syslog message. */
|
|
for (p = requestor; *p != '\0'; p++) {
|
|
if (!isprintch(*p) && (*p != '\t'))
|
|
*p = '.';
|
|
}
|
|
}
|
|
|
|
if (dbg_timenow) {
|
|
/*
|
|
* Note that the 'daytime' variable is not changed.
|
|
* That is only used in messages that track when a
|
|
* logfile is rotated, and if a file *is* rotated,
|
|
* then it will still rotated at the "real now" time.
|
|
*/
|
|
ptime_free(timenow);
|
|
timenow = dbg_timenow;
|
|
fprintf(stderr, "Debug: Running as if TimeNow is %s",
|
|
ptimeget_ctime(dbg_timenow));
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* These debugging options are mainly meant for developer use, such
|
|
* as writing regression-tests. They would not be needed by users
|
|
* during normal operation of newsyslog...
|
|
*/
|
|
static int
|
|
parse_doption(const char *doption)
|
|
{
|
|
const char TN[] = "TN=";
|
|
int res;
|
|
|
|
if (strncmp(doption, TN, sizeof(TN) - 1) == 0) {
|
|
/*
|
|
* The "TimeNow" debugging option. This might be off
|
|
* by an hour when crossing a timezone change.
|
|
*/
|
|
dbg_timenow = ptime_init(NULL);
|
|
res = ptime_relparse(dbg_timenow, PTM_PARSE_ISO8601,
|
|
time(NULL), doption + sizeof(TN) - 1);
|
|
if (res == -2) {
|
|
warnx("Non-existent time specified on -D %s", doption);
|
|
return (0); /* failure */
|
|
} else if (res < 0) {
|
|
warnx("Malformed time given on -D %s", doption);
|
|
return (0); /* failure */
|
|
}
|
|
return (1); /* successfully parsed */
|
|
|
|
}
|
|
|
|
if (strcmp(doption, "ats") == 0) {
|
|
dbg_at_times++;
|
|
return (1); /* successfully parsed */
|
|
}
|
|
|
|
/* XXX - This check could probably be dropped. */
|
|
if ((strcmp(doption, "neworder") == 0) || (strcmp(doption, "oldorder")
|
|
== 0)) {
|
|
warnx("NOTE: newsyslog always uses 'neworder'.");
|
|
return (1); /* successfully parsed */
|
|
}
|
|
|
|
warnx("Unknown -D (debug) option: '%s'", doption);
|
|
return (0); /* failure */
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
|
|
fprintf(stderr,
|
|
"usage: newsyslog [-CFNPnrsv] [-a directory] [-d directory] [-f config_file]\n"
|
|
" [-S pidfile] [-t timefmt] [[-R tagname] file ...]\n");
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Parse a configuration file and return a linked list of all the logs
|
|
* which should be processed.
|
|
*/
|
|
static struct cflist *
|
|
get_worklist(char **files)
|
|
{
|
|
FILE *f;
|
|
char **given;
|
|
struct cflist *cmdlist, *filelist, *globlist;
|
|
struct conf_entry *defconf, *dupent, *ent;
|
|
struct ilist inclist;
|
|
struct include_entry *inc;
|
|
int gmatch, fnres;
|
|
|
|
defconf = NULL;
|
|
STAILQ_INIT(&inclist);
|
|
|
|
filelist = malloc(sizeof(struct cflist));
|
|
if (filelist == NULL)
|
|
err(1, "malloc of filelist");
|
|
STAILQ_INIT(filelist);
|
|
globlist = malloc(sizeof(struct cflist));
|
|
if (globlist == NULL)
|
|
err(1, "malloc of globlist");
|
|
STAILQ_INIT(globlist);
|
|
|
|
inc = malloc(sizeof(struct include_entry));
|
|
if (inc == NULL)
|
|
err(1, "malloc of inc");
|
|
inc->file = conf;
|
|
if (inc->file == NULL)
|
|
inc->file = _PATH_CONF;
|
|
STAILQ_INSERT_TAIL(&inclist, inc, inc_nextp);
|
|
|
|
STAILQ_FOREACH(inc, &inclist, inc_nextp) {
|
|
if (strcmp(inc->file, "-") != 0)
|
|
f = fopen(inc->file, "r");
|
|
else {
|
|
f = stdin;
|
|
inc->file = "<stdin>";
|
|
}
|
|
if (!f)
|
|
err(1, "%s", inc->file);
|
|
|
|
if (verbose)
|
|
printf("Processing %s\n", inc->file);
|
|
parse_file(f, filelist, globlist, defconf, &inclist);
|
|
(void) fclose(f);
|
|
}
|
|
|
|
/*
|
|
* All config-file information has been read in and turned into
|
|
* a filelist and a globlist. If there were no specific files
|
|
* given on the run command, then the only thing left to do is to
|
|
* call a routine which finds all files matched by the globlist
|
|
* and adds them to the filelist. Then return the worklist.
|
|
*/
|
|
if (*files == NULL) {
|
|
expand_globs(filelist, globlist);
|
|
free_clist(globlist);
|
|
if (defconf != NULL)
|
|
free_entry(defconf);
|
|
return (filelist);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
/*
|
|
* If newsyslog was given a specific list of files to process,
|
|
* it may be that some of those files were not listed in any
|
|
* config file. Those unlisted files should get the default
|
|
* rotation action. First, create the default-rotation action
|
|
* if none was found in a system config file.
|
|
*/
|
|
if (defconf == NULL) {
|
|
defconf = init_entry(DEFAULT_MARKER, NULL);
|
|
defconf->numlogs = 3;
|
|
defconf->trsize = 50;
|
|
defconf->permissions = S_IRUSR|S_IWUSR;
|
|
}
|
|
|
|
/*
|
|
* If newsyslog was run with a list of specific filenames,
|
|
* then create a new worklist which has only those files in
|
|
* it, picking up the rotation-rules for those files from
|
|
* the original filelist.
|
|
*
|
|
* XXX - Note that this will copy multiple rules for a single
|
|
* logfile, if multiple entries are an exact match for
|
|
* that file. That matches the historic behavior, but do
|
|
* we want to continue to allow it? If so, it should
|
|
* probably be handled more intelligently.
|
|
*/
|
|
cmdlist = malloc(sizeof(struct cflist));
|
|
if (cmdlist == NULL)
|
|
err(1, "malloc of cmdlist");
|
|
STAILQ_INIT(cmdlist);
|
|
|
|
for (given = files; *given; ++given) {
|
|
/*
|
|
* First try to find exact-matches for this given file.
|
|
*/
|
|
gmatch = 0;
|
|
STAILQ_FOREACH(ent, filelist, cf_nextp) {
|
|
if (strcmp(ent->log, *given) == 0) {
|
|
gmatch++;
|
|
dupent = init_entry(*given, ent);
|
|
STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp);
|
|
}
|
|
}
|
|
if (gmatch) {
|
|
if (verbose > 2)
|
|
printf("\t+ Matched entry %s\n", *given);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* There was no exact-match for this given file, so look
|
|
* for a "glob" entry which does match.
|
|
*/
|
|
gmatch = 0;
|
|
if (verbose > 2 && globlist != NULL)
|
|
printf("\t+ Checking globs for %s\n", *given);
|
|
STAILQ_FOREACH(ent, globlist, cf_nextp) {
|
|
fnres = fnmatch(ent->log, *given, FNM_PATHNAME);
|
|
if (verbose > 2)
|
|
printf("\t+ = %d for pattern %s\n", fnres,
|
|
ent->log);
|
|
if (fnres == 0) {
|
|
gmatch++;
|
|
dupent = init_entry(*given, ent);
|
|
/* This new entry is not a glob! */
|
|
dupent->flags &= ~CE_GLOB;
|
|
STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp);
|
|
/* Only allow a match to one glob-entry */
|
|
break;
|
|
}
|
|
}
|
|
if (gmatch) {
|
|
if (verbose > 2)
|
|
printf("\t+ Matched %s via %s\n", *given,
|
|
ent->log);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* This given file was not found in any config file, so
|
|
* add a worklist item based on the default entry.
|
|
*/
|
|
if (verbose > 2)
|
|
printf("\t+ No entry matched %s (will use %s)\n",
|
|
*given, DEFAULT_MARKER);
|
|
dupent = init_entry(*given, defconf);
|
|
/* Mark that it was *not* found in a config file */
|
|
dupent->def_cfg = 1;
|
|
STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp);
|
|
}
|
|
|
|
/*
|
|
* Free all the entries in the original work list, the list of
|
|
* glob entries, and the default entry.
|
|
*/
|
|
free_clist(filelist);
|
|
free_clist(globlist);
|
|
free_entry(defconf);
|
|
|
|
/* And finally, return a worklist which matches the given files. */
|
|
return (cmdlist);
|
|
}
|
|
|
|
/*
|
|
* Expand the list of entries with filename patterns, and add all files
|
|
* which match those glob-entries onto the worklist.
|
|
*/
|
|
static void
|
|
expand_globs(struct cflist *work_p, struct cflist *glob_p)
|
|
{
|
|
int gmatch, gres;
|
|
size_t i;
|
|
char *mfname;
|
|
struct conf_entry *dupent, *ent, *globent;
|
|
glob_t pglob;
|
|
struct stat st_fm;
|
|
|
|
/*
|
|
* The worklist contains all fully-specified (non-GLOB) names.
|
|
*
|
|
* Now expand the list of filename-pattern (GLOB) entries into
|
|
* a second list, which (by definition) will only match files
|
|
* that already exist. Do not add a glob-related entry for any
|
|
* file which already exists in the fully-specified list.
|
|
*/
|
|
STAILQ_FOREACH(globent, glob_p, cf_nextp) {
|
|
gres = glob(globent->log, GLOB_NOCHECK, NULL, &pglob);
|
|
if (gres != 0) {
|
|
warn("cannot expand pattern (%d): %s", gres,
|
|
globent->log);
|
|
continue;
|
|
}
|
|
|
|
if (verbose > 2)
|
|
printf("\t+ Expanding pattern %s\n", globent->log);
|
|
for (i = 0; i < pglob.gl_matchc; i++) {
|
|
mfname = pglob.gl_pathv[i];
|
|
|
|
/* See if this file already has a specific entry. */
|
|
gmatch = 0;
|
|
STAILQ_FOREACH(ent, work_p, cf_nextp) {
|
|
if (strcmp(mfname, ent->log) == 0) {
|
|
gmatch++;
|
|
break;
|
|
}
|
|
}
|
|
if (gmatch)
|
|
continue;
|
|
|
|
/* Make sure the named matched is a file. */
|
|
gres = lstat(mfname, &st_fm);
|
|
if (gres != 0) {
|
|
/* Error on a file that glob() matched?!? */
|
|
warn("Skipping %s - lstat() error", mfname);
|
|
continue;
|
|
}
|
|
if (!S_ISREG(st_fm.st_mode)) {
|
|
/* We only rotate files! */
|
|
if (verbose > 2)
|
|
printf("\t+ . skipping %s (!file)\n",
|
|
mfname);
|
|
continue;
|
|
}
|
|
|
|
if (verbose > 2)
|
|
printf("\t+ . add file %s\n", mfname);
|
|
dupent = init_entry(mfname, globent);
|
|
/* This new entry is not a glob! */
|
|
dupent->flags &= ~CE_GLOB;
|
|
|
|
/* Add to the worklist. */
|
|
STAILQ_INSERT_TAIL(work_p, dupent, cf_nextp);
|
|
}
|
|
globfree(&pglob);
|
|
if (verbose > 2)
|
|
printf("\t+ Done with pattern %s\n", globent->log);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Parse a configuration file and update a linked list of all the logs to
|
|
* process.
|
|
*/
|
|
static void
|
|
parse_file(FILE *cf, struct cflist *work_p, struct cflist *glob_p,
|
|
struct conf_entry *defconf_p, struct ilist *inclist)
|
|
{
|
|
char line[BUFSIZ], *parse, *q;
|
|
char *cp, *errline, *group;
|
|
struct conf_entry *working;
|
|
struct passwd *pwd;
|
|
struct group *grp;
|
|
glob_t pglob;
|
|
int eol, ptm_opts, res, special;
|
|
size_t i;
|
|
|
|
errline = NULL;
|
|
while (fgets(line, BUFSIZ, cf)) {
|
|
if ((line[0] == '\n') || (line[0] == '#') ||
|
|
(strlen(line) == 0))
|
|
continue;
|
|
if (errline != NULL)
|
|
free(errline);
|
|
errline = strdup(line);
|
|
for (cp = line + 1; *cp != '\0'; cp++) {
|
|
if (*cp != '#')
|
|
continue;
|
|
if (*(cp - 1) == '\\') {
|
|
strcpy(cp - 1, cp);
|
|
cp--;
|
|
continue;
|
|
}
|
|
*cp = '\0';
|
|
break;
|
|
}
|
|
|
|
q = parse = missing_field(sob(line), errline);
|
|
parse = son(line);
|
|
if (!*parse)
|
|
errx(1, "malformed line (missing fields):\n%s",
|
|
errline);
|
|
*parse = '\0';
|
|
|
|
/*
|
|
* Allow people to set debug options via the config file.
|
|
* (NOTE: debug options are undocumented, and may disappear
|
|
* at any time, etc).
|
|
*/
|
|
if (strcasecmp(DEBUG_MARKER, q) == 0) {
|
|
q = parse = missing_field(sob(parse + 1), errline);
|
|
parse = son(parse);
|
|
if (!*parse)
|
|
warnx("debug line specifies no option:\n%s",
|
|
errline);
|
|
else {
|
|
*parse = '\0';
|
|
parse_doption(q);
|
|
}
|
|
continue;
|
|
} else if (strcasecmp(INCLUDE_MARKER, q) == 0) {
|
|
if (verbose)
|
|
printf("Found: %s", errline);
|
|
q = parse = missing_field(sob(parse + 1), errline);
|
|
parse = son(parse);
|
|
if (!*parse) {
|
|
warnx("include line missing argument:\n%s",
|
|
errline);
|
|
continue;
|
|
}
|
|
|
|
*parse = '\0';
|
|
|
|
if (isglobstr(q)) {
|
|
res = glob(q, GLOB_NOCHECK, NULL, &pglob);
|
|
if (res != 0) {
|
|
warn("cannot expand pattern (%d): %s",
|
|
res, q);
|
|
continue;
|
|
}
|
|
|
|
if (verbose > 2)
|
|
printf("\t+ Expanding pattern %s\n", q);
|
|
|
|
for (i = 0; i < pglob.gl_matchc; i++)
|
|
add_to_queue(pglob.gl_pathv[i],
|
|
inclist);
|
|
globfree(&pglob);
|
|
} else
|
|
add_to_queue(q, inclist);
|
|
continue;
|
|
}
|
|
|
|
special = 0;
|
|
working = init_entry(q, NULL);
|
|
if (strcasecmp(DEFAULT_MARKER, q) == 0) {
|
|
special = 1;
|
|
if (defconf_p != NULL) {
|
|
warnx("Ignoring duplicate entry for %s!", q);
|
|
free_entry(working);
|
|
continue;
|
|
}
|
|
defconf_p = working;
|
|
}
|
|
|
|
q = parse = missing_field(sob(parse + 1), errline);
|
|
parse = son(parse);
|
|
if (!*parse)
|
|
errx(1, "malformed line (missing fields):\n%s",
|
|
errline);
|
|
*parse = '\0';
|
|
if ((group = strchr(q, ':')) != NULL ||
|
|
(group = strrchr(q, '.')) != NULL) {
|
|
*group++ = '\0';
|
|
if (*q) {
|
|
if (!(isnumberstr(q))) {
|
|
if ((pwd = getpwnam(q)) == NULL)
|
|
errx(1,
|
|
"error in config file; unknown user:\n%s",
|
|
errline);
|
|
working->uid = pwd->pw_uid;
|
|
} else
|
|
working->uid = atoi(q);
|
|
} else
|
|
working->uid = (uid_t)-1;
|
|
|
|
q = group;
|
|
if (*q) {
|
|
if (!(isnumberstr(q))) {
|
|
if ((grp = getgrnam(q)) == NULL)
|
|
errx(1,
|
|
"error in config file; unknown group:\n%s",
|
|
errline);
|
|
working->gid = grp->gr_gid;
|
|
} else
|
|
working->gid = atoi(q);
|
|
} else
|
|
working->gid = (gid_t)-1;
|
|
|
|
q = parse = missing_field(sob(parse + 1), errline);
|
|
parse = son(parse);
|
|
if (!*parse)
|
|
errx(1, "malformed line (missing fields):\n%s",
|
|
errline);
|
|
*parse = '\0';
|
|
} else {
|
|
working->uid = (uid_t)-1;
|
|
working->gid = (gid_t)-1;
|
|
}
|
|
|
|
if (!sscanf(q, "%o", &working->permissions))
|
|
errx(1, "error in config file; bad permissions:\n%s",
|
|
errline);
|
|
|
|
q = parse = missing_field(sob(parse + 1), errline);
|
|
parse = son(parse);
|
|
if (!*parse)
|
|
errx(1, "malformed line (missing fields):\n%s",
|
|
errline);
|
|
*parse = '\0';
|
|
if (!sscanf(q, "%d", &working->numlogs) || working->numlogs < 0)
|
|
errx(1, "error in config file; bad value for count of logs to save:\n%s",
|
|
errline);
|
|
|
|
q = parse = missing_field(sob(parse + 1), errline);
|
|
parse = son(parse);
|
|
if (!*parse)
|
|
errx(1, "malformed line (missing fields):\n%s",
|
|
errline);
|
|
*parse = '\0';
|
|
if (isdigitch(*q))
|
|
working->trsize = atoi(q);
|
|
else if (strcmp(q, "*") == 0)
|
|
working->trsize = -1;
|
|
else {
|
|
warnx("Invalid value of '%s' for 'size' in line:\n%s",
|
|
q, errline);
|
|
working->trsize = -1;
|
|
}
|
|
|
|
working->flags = 0;
|
|
working->compress = COMPRESS_NONE;
|
|
q = parse = missing_field(sob(parse + 1), errline);
|
|
parse = son(parse);
|
|
eol = !*parse;
|
|
*parse = '\0';
|
|
{
|
|
char *ep;
|
|
u_long ul;
|
|
|
|
ul = strtoul(q, &ep, 10);
|
|
if (ep == q)
|
|
working->hours = 0;
|
|
else if (*ep == '*')
|
|
working->hours = -1;
|
|
else if (ul > INT_MAX)
|
|
errx(1, "interval is too large:\n%s", errline);
|
|
else
|
|
working->hours = ul;
|
|
|
|
if (*ep == '\0' || strcmp(ep, "*") == 0)
|
|
goto no_trimat;
|
|
if (*ep != '@' && *ep != '$')
|
|
errx(1, "malformed interval/at:\n%s", errline);
|
|
|
|
working->flags |= CE_TRIMAT;
|
|
working->trim_at = ptime_init(NULL);
|
|
ptm_opts = PTM_PARSE_ISO8601;
|
|
if (*ep == '$')
|
|
ptm_opts = PTM_PARSE_DWM;
|
|
ptm_opts |= PTM_PARSE_MATCHDOM;
|
|
res = ptime_relparse(working->trim_at, ptm_opts,
|
|
ptimeget_secs(timenow), ep + 1);
|
|
if (res == -2)
|
|
errx(1, "nonexistent time for 'at' value:\n%s",
|
|
errline);
|
|
else if (res < 0)
|
|
errx(1, "malformed 'at' value:\n%s", errline);
|
|
}
|
|
no_trimat:
|
|
|
|
if (eol)
|
|
q = NULL;
|
|
else {
|
|
q = parse = sob(parse + 1); /* Optional field */
|
|
parse = son(parse);
|
|
if (!*parse)
|
|
eol = 1;
|
|
*parse = '\0';
|
|
}
|
|
|
|
for (; q && *q && !isspacech(*q); q++) {
|
|
switch (tolowerch(*q)) {
|
|
case 'b':
|
|
working->flags |= CE_BINARY;
|
|
break;
|
|
case 'c':
|
|
/*
|
|
* XXX - Ick! Ugly! Remove ASAP!
|
|
* We want `c' and `C' for "create". But we
|
|
* will temporarily treat `c' as `g', because
|
|
* FreeBSD releases <= 4.8 have a typo of
|
|
* checking ('G' || 'c') for CE_GLOB.
|
|
*/
|
|
if (*q == 'c') {
|
|
warnx("Assuming 'g' for 'c' in flags for line:\n%s",
|
|
errline);
|
|
warnx("The 'c' flag will eventually mean 'CREATE'");
|
|
working->flags |= CE_GLOB;
|
|
break;
|
|
}
|
|
working->flags |= CE_CREATE;
|
|
break;
|
|
case 'd':
|
|
working->flags |= CE_NODUMP;
|
|
break;
|
|
case 'g':
|
|
working->flags |= CE_GLOB;
|
|
break;
|
|
case 'j':
|
|
working->compress = COMPRESS_BZIP2;
|
|
break;
|
|
case 'n':
|
|
working->flags |= CE_NOSIGNAL;
|
|
break;
|
|
case 'r':
|
|
working->flags |= CE_PID2CMD;
|
|
break;
|
|
case 'u':
|
|
working->flags |= CE_SIGNALGROUP;
|
|
break;
|
|
case 'w':
|
|
/* Depreciated flag - keep for compatibility purposes */
|
|
break;
|
|
case 'x':
|
|
working->compress = COMPRESS_XZ;
|
|
break;
|
|
case 'z':
|
|
working->compress = COMPRESS_GZIP;
|
|
break;
|
|
case '-':
|
|
break;
|
|
case 'f': /* Used by OpenBSD for "CE_FOLLOW" */
|
|
case 'm': /* Used by OpenBSD for "CE_MONITOR" */
|
|
case 'p': /* Used by NetBSD for "CE_PLAIN0" */
|
|
default:
|
|
errx(1, "illegal flag in config file -- %c",
|
|
*q);
|
|
}
|
|
}
|
|
|
|
if (eol)
|
|
q = NULL;
|
|
else {
|
|
q = parse = sob(parse + 1); /* Optional field */
|
|
parse = son(parse);
|
|
if (!*parse)
|
|
eol = 1;
|
|
*parse = '\0';
|
|
}
|
|
|
|
working->pid_cmd_file = NULL;
|
|
if (q && *q) {
|
|
if (*q == '/')
|
|
working->pid_cmd_file = strdup(q);
|
|
else if (isdigit(*q))
|
|
goto got_sig;
|
|
else
|
|
errx(1,
|
|
"illegal pid file or signal number in config file:\n%s",
|
|
errline);
|
|
}
|
|
if (eol)
|
|
q = NULL;
|
|
else {
|
|
q = parse = sob(parse + 1); /* Optional field */
|
|
*(parse = son(parse)) = '\0';
|
|
}
|
|
|
|
working->sig = SIGHUP;
|
|
if (q && *q) {
|
|
if (isdigit(*q)) {
|
|
got_sig:
|
|
working->sig = atoi(q);
|
|
} else {
|
|
err_sig:
|
|
errx(1,
|
|
"illegal signal number in config file:\n%s",
|
|
errline);
|
|
}
|
|
if (working->sig < 1 || working->sig >= NSIG)
|
|
goto err_sig;
|
|
}
|
|
|
|
/*
|
|
* Finish figuring out what pid-file to use (if any) in
|
|
* later processing if this logfile needs to be rotated.
|
|
*/
|
|
if ((working->flags & CE_NOSIGNAL) == CE_NOSIGNAL) {
|
|
/*
|
|
* This config-entry specified 'n' for nosignal,
|
|
* see if it also specified an explicit pid_cmd_file.
|
|
* This would be a pretty pointless combination.
|
|
*/
|
|
if (working->pid_cmd_file != NULL) {
|
|
warnx("Ignoring '%s' because flag 'n' was specified in line:\n%s",
|
|
working->pid_cmd_file, errline);
|
|
free(working->pid_cmd_file);
|
|
working->pid_cmd_file = NULL;
|
|
}
|
|
} else if (working->pid_cmd_file == NULL) {
|
|
/*
|
|
* This entry did not specify the 'n' flag, which
|
|
* means it should signal syslogd unless it had
|
|
* specified some other pid-file (and obviously the
|
|
* syslog pid-file will not be for a process-group).
|
|
* Also, we should only try to notify syslog if we
|
|
* are root.
|
|
*/
|
|
if (working->flags & CE_SIGNALGROUP) {
|
|
warnx("Ignoring flag 'U' in line:\n%s",
|
|
errline);
|
|
working->flags &= ~CE_SIGNALGROUP;
|
|
}
|
|
if (needroot)
|
|
working->pid_cmd_file = strdup(path_syslogpid);
|
|
}
|
|
|
|
/*
|
|
* Add this entry to the appropriate list of entries, unless
|
|
* it was some kind of special entry (eg: <default>).
|
|
*/
|
|
if (special) {
|
|
; /* Do not add to any list */
|
|
} else if (working->flags & CE_GLOB) {
|
|
STAILQ_INSERT_TAIL(glob_p, working, cf_nextp);
|
|
} else {
|
|
STAILQ_INSERT_TAIL(work_p, working, cf_nextp);
|
|
}
|
|
}
|
|
if (errline != NULL)
|
|
free(errline);
|
|
}
|
|
|
|
static char *
|
|
missing_field(char *p, char *errline)
|
|
{
|
|
|
|
if (!p || !*p)
|
|
errx(1, "missing field in config file:\n%s", errline);
|
|
return (p);
|
|
}
|
|
|
|
/*
|
|
* In our sort we return it in the reverse of what qsort normally
|
|
* would do, as we want the newest files first. If we have two
|
|
* entries with the same time we don't really care about order.
|
|
*
|
|
* Support function for qsort() in delete_oldest_timelog().
|
|
*/
|
|
static int
|
|
oldlog_entry_compare(const void *a, const void *b)
|
|
{
|
|
const struct oldlog_entry *ola = a, *olb = b;
|
|
|
|
if (ola->t > olb->t)
|
|
return (-1);
|
|
else if (ola->t < olb->t)
|
|
return (1);
|
|
else
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Check whether the file corresponding to dp is an archive of the logfile
|
|
* logfname, based on the timefnamefmt format string. Return true and fill out
|
|
* tm if this is the case; otherwise return false.
|
|
*/
|
|
static int
|
|
validate_old_timelog(int fd, const struct dirent *dp, const char *logfname,
|
|
struct tm *tm)
|
|
{
|
|
struct stat sb;
|
|
size_t logfname_len;
|
|
char *s;
|
|
int c;
|
|
|
|
logfname_len = strlen(logfname);
|
|
|
|
if (dp->d_type != DT_REG) {
|
|
/*
|
|
* Some filesystems (e.g. NFS) don't fill out the d_type field
|
|
* and leave it set to DT_UNKNOWN; in this case we must obtain
|
|
* the file type ourselves.
|
|
*/
|
|
if (dp->d_type != DT_UNKNOWN ||
|
|
fstatat(fd, dp->d_name, &sb, AT_SYMLINK_NOFOLLOW) != 0 ||
|
|
!S_ISREG(sb.st_mode))
|
|
return (0);
|
|
}
|
|
/* Ignore everything but files with our logfile prefix. */
|
|
if (strncmp(dp->d_name, logfname, logfname_len) != 0)
|
|
return (0);
|
|
/* Ignore the actual non-rotated logfile. */
|
|
if (dp->d_namlen == logfname_len)
|
|
return (0);
|
|
|
|
/*
|
|
* Make sure we created have found a logfile, so the
|
|
* postfix is valid, IE format is: '.<time>(.[bgx]z)?'.
|
|
*/
|
|
if (dp->d_name[logfname_len] != '.') {
|
|
if (verbose)
|
|
printf("Ignoring %s which has unexpected "
|
|
"extension '%s'\n", dp->d_name,
|
|
&dp->d_name[logfname_len]);
|
|
return (0);
|
|
}
|
|
memset(tm, 0, sizeof(*tm));
|
|
if ((s = strptime(&dp->d_name[logfname_len + 1],
|
|
timefnamefmt, tm)) == NULL) {
|
|
/*
|
|
* We could special case "old" sequentially named logfiles here,
|
|
* but we do not as that would require special handling to
|
|
* decide which one was the oldest compared to "new" time based
|
|
* logfiles.
|
|
*/
|
|
if (verbose)
|
|
printf("Ignoring %s which does not "
|
|
"match time format\n", dp->d_name);
|
|
return (0);
|
|
}
|
|
|
|
for (c = 0; c < COMPRESS_TYPES; c++)
|
|
if (strcmp(s, compress_type[c].suffix) == 0)
|
|
/* We're done. */
|
|
return (1);
|
|
|
|
if (verbose)
|
|
printf("Ignoring %s which has unexpected extension '%s'\n",
|
|
dp->d_name, s);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Delete the oldest logfiles, when using time based filenames.
|
|
*/
|
|
static void
|
|
delete_oldest_timelog(const struct conf_entry *ent, const char *archive_dir)
|
|
{
|
|
char *logfname, *s, *dir, errbuf[80];
|
|
int dir_fd, i, logcnt, max_logcnt;
|
|
struct oldlog_entry *oldlogs;
|
|
struct dirent *dp;
|
|
const char *cdir;
|
|
struct tm tm;
|
|
DIR *dirp;
|
|
|
|
oldlogs = malloc(MAX_OLDLOGS * sizeof(struct oldlog_entry));
|
|
max_logcnt = MAX_OLDLOGS;
|
|
logcnt = 0;
|
|
|
|
if (archive_dir != NULL && archive_dir[0] != '\0')
|
|
cdir = archive_dir;
|
|
else
|
|
if ((cdir = dirname(ent->log)) == NULL)
|
|
err(1, "dirname()");
|
|
if ((dir = strdup(cdir)) == NULL)
|
|
err(1, "strdup()");
|
|
|
|
if ((s = basename(ent->log)) == NULL)
|
|
err(1, "basename()");
|
|
if ((logfname = strdup(s)) == NULL)
|
|
err(1, "strdup()");
|
|
if (strcmp(logfname, "/") == 0)
|
|
errx(1, "Invalid log filename - became '/'");
|
|
|
|
if (verbose > 2)
|
|
printf("Searching for old logs in %s\n", dir);
|
|
|
|
/* First we create a 'list' of all archived logfiles */
|
|
if ((dirp = opendir(dir)) == NULL)
|
|
err(1, "Cannot open log directory '%s'", dir);
|
|
dir_fd = dirfd(dirp);
|
|
while ((dp = readdir(dirp)) != NULL) {
|
|
if (validate_old_timelog(dir_fd, dp, logfname, &tm) == 0)
|
|
continue;
|
|
|
|
/*
|
|
* We should now have old an old rotated logfile, so
|
|
* add it to the 'list'.
|
|
*/
|
|
if ((oldlogs[logcnt].t = timegm(&tm)) == -1)
|
|
err(1, "Could not convert time string to time value");
|
|
if ((oldlogs[logcnt].fname = strdup(dp->d_name)) == NULL)
|
|
err(1, "strdup()");
|
|
logcnt++;
|
|
|
|
/*
|
|
* It is very unlikely we ever run out of space in the
|
|
* logfile array from the default size, but lets
|
|
* handle it anyway...
|
|
*/
|
|
if (logcnt >= max_logcnt) {
|
|
max_logcnt *= 4;
|
|
/* Detect integer overflow */
|
|
if (max_logcnt < logcnt)
|
|
errx(1, "Too many old logfiles found");
|
|
oldlogs = realloc(oldlogs,
|
|
max_logcnt * sizeof(struct oldlog_entry));
|
|
if (oldlogs == NULL)
|
|
err(1, "realloc()");
|
|
}
|
|
}
|
|
|
|
/* Second, if needed we delete oldest archived logfiles */
|
|
if (logcnt > 0 && logcnt >= ent->numlogs && ent->numlogs > 1) {
|
|
oldlogs = realloc(oldlogs, logcnt *
|
|
sizeof(struct oldlog_entry));
|
|
if (oldlogs == NULL)
|
|
err(1, "realloc()");
|
|
|
|
/*
|
|
* We now sort the logs in the order of newest to
|
|
* oldest. That way we can simply skip over the
|
|
* number of records we want to keep.
|
|
*/
|
|
qsort(oldlogs, logcnt, sizeof(struct oldlog_entry),
|
|
oldlog_entry_compare);
|
|
for (i = ent->numlogs - 1; i < logcnt; i++) {
|
|
if (noaction)
|
|
printf("\trm -f %s/%s\n", dir,
|
|
oldlogs[i].fname);
|
|
else if (unlinkat(dir_fd, oldlogs[i].fname, 0) != 0) {
|
|
snprintf(errbuf, sizeof(errbuf),
|
|
"Could not delete old logfile '%s'",
|
|
oldlogs[i].fname);
|
|
perror(errbuf);
|
|
}
|
|
}
|
|
} else if (verbose > 1)
|
|
printf("No old logs to delete for logfile %s\n", ent->log);
|
|
|
|
/* Third, cleanup */
|
|
closedir(dirp);
|
|
for (i = 0; i < logcnt; i++) {
|
|
assert(oldlogs[i].fname != NULL);
|
|
free(oldlogs[i].fname);
|
|
}
|
|
free(oldlogs);
|
|
free(logfname);
|
|
free(dir);
|
|
}
|
|
|
|
/*
|
|
* Generate a log filename, when using classic filenames.
|
|
*/
|
|
static void
|
|
gen_classiclog_fname(char *fname, size_t fname_sz, const char *archive_dir,
|
|
const char *namepart, int numlogs_c)
|
|
{
|
|
|
|
if (archive_dir[0] != '\0')
|
|
(void) snprintf(fname, fname_sz, "%s/%s.%d", archive_dir,
|
|
namepart, numlogs_c);
|
|
else
|
|
(void) snprintf(fname, fname_sz, "%s.%d", namepart, numlogs_c);
|
|
}
|
|
|
|
/*
|
|
* Delete a rotated logfile, when using classic filenames.
|
|
*/
|
|
static void
|
|
delete_classiclog(const char *archive_dir, const char *namepart, int numlog_c)
|
|
{
|
|
char file1[MAXPATHLEN], zfile1[MAXPATHLEN];
|
|
int c;
|
|
|
|
gen_classiclog_fname(file1, sizeof(file1), archive_dir, namepart,
|
|
numlog_c);
|
|
|
|
for (c = 0; c < COMPRESS_TYPES; c++) {
|
|
(void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1,
|
|
compress_type[c].suffix);
|
|
if (noaction)
|
|
printf("\trm -f %s\n", zfile1);
|
|
else
|
|
(void) unlink(zfile1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Only add to the queue if the file hasn't already been added. This is
|
|
* done to prevent circular include loops.
|
|
*/
|
|
static void
|
|
add_to_queue(const char *fname, struct ilist *inclist)
|
|
{
|
|
struct include_entry *inc;
|
|
|
|
STAILQ_FOREACH(inc, inclist, inc_nextp) {
|
|
if (strcmp(fname, inc->file) == 0) {
|
|
warnx("duplicate include detected: %s", fname);
|
|
return;
|
|
}
|
|
}
|
|
|
|
inc = malloc(sizeof(struct include_entry));
|
|
if (inc == NULL)
|
|
err(1, "malloc of inc");
|
|
inc->file = strdup(fname);
|
|
|
|
if (verbose > 2)
|
|
printf("\t+ Adding %s to the processing queue.\n", fname);
|
|
|
|
STAILQ_INSERT_TAIL(inclist, inc, inc_nextp);
|
|
}
|
|
|
|
/*
|
|
* Search for logfile and return its compression suffix (if supported)
|
|
* The suffix detection is first-match in the order of compress_types
|
|
*
|
|
* Note: if logfile without suffix exists (uncompressed, COMPRESS_NONE)
|
|
* a zero-length string is returned
|
|
*/
|
|
static const char *
|
|
get_logfile_suffix(const char *logfile)
|
|
{
|
|
struct stat st;
|
|
char zfile[MAXPATHLEN];
|
|
int c;
|
|
|
|
for (c = 0; c < COMPRESS_TYPES; c++) {
|
|
(void) strlcpy(zfile, logfile, MAXPATHLEN);
|
|
(void) strlcat(zfile, compress_type[c].suffix, MAXPATHLEN);
|
|
if (lstat(zfile, &st) == 0)
|
|
return (compress_type[c].suffix);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
static fk_entry
|
|
do_rotate(const struct conf_entry *ent)
|
|
{
|
|
char dirpart[MAXPATHLEN], namepart[MAXPATHLEN];
|
|
char file1[MAXPATHLEN], file2[MAXPATHLEN];
|
|
char zfile1[MAXPATHLEN], zfile2[MAXPATHLEN];
|
|
const char *logfile_suffix;
|
|
char datetimestr[30];
|
|
int flags, numlogs_c;
|
|
fk_entry free_or_keep;
|
|
struct sigwork_entry *swork;
|
|
struct stat st;
|
|
struct tm tm;
|
|
time_t now;
|
|
|
|
flags = ent->flags;
|
|
free_or_keep = FREE_ENT;
|
|
|
|
if (archtodir) {
|
|
char *p;
|
|
|
|
/* build complete name of archive directory into dirpart */
|
|
if (*archdirname == '/') { /* absolute */
|
|
strlcpy(dirpart, archdirname, sizeof(dirpart));
|
|
} else { /* relative */
|
|
/* get directory part of logfile */
|
|
strlcpy(dirpart, ent->log, sizeof(dirpart));
|
|
if ((p = strrchr(dirpart, '/')) == NULL)
|
|
dirpart[0] = '\0';
|
|
else
|
|
*(p + 1) = '\0';
|
|
strlcat(dirpart, archdirname, sizeof(dirpart));
|
|
}
|
|
|
|
/* check if archive directory exists, if not, create it */
|
|
if (lstat(dirpart, &st))
|
|
createdir(ent, dirpart);
|
|
|
|
/* get filename part of logfile */
|
|
if ((p = strrchr(ent->log, '/')) == NULL)
|
|
strlcpy(namepart, ent->log, sizeof(namepart));
|
|
else
|
|
strlcpy(namepart, p + 1, sizeof(namepart));
|
|
} else {
|
|
/*
|
|
* Tell utility functions we are not using an archive
|
|
* dir.
|
|
*/
|
|
dirpart[0] = '\0';
|
|
strlcpy(namepart, ent->log, sizeof(namepart));
|
|
}
|
|
|
|
/* Delete old logs */
|
|
if (timefnamefmt != NULL)
|
|
delete_oldest_timelog(ent, dirpart);
|
|
else {
|
|
/*
|
|
* Handle cleaning up after legacy newsyslog where we
|
|
* kept ent->numlogs + 1 files. This code can go away
|
|
* at some point in the future.
|
|
*/
|
|
delete_classiclog(dirpart, namepart, ent->numlogs);
|
|
|
|
if (ent->numlogs > 0)
|
|
delete_classiclog(dirpart, namepart, ent->numlogs - 1);
|
|
|
|
}
|
|
|
|
if (timefnamefmt != NULL) {
|
|
/* If time functions fails we can't really do any sensible */
|
|
if (time(&now) == (time_t)-1 ||
|
|
localtime_r(&now, &tm) == NULL)
|
|
bzero(&tm, sizeof(tm));
|
|
|
|
strftime(datetimestr, sizeof(datetimestr), timefnamefmt, &tm);
|
|
if (archtodir)
|
|
(void) snprintf(file1, sizeof(file1), "%s/%s.%s",
|
|
dirpart, namepart, datetimestr);
|
|
else
|
|
(void) snprintf(file1, sizeof(file1), "%s.%s",
|
|
ent->log, datetimestr);
|
|
|
|
/* Don't run the code to move down logs */
|
|
numlogs_c = -1;
|
|
} else {
|
|
gen_classiclog_fname(file1, sizeof(file1), dirpart, namepart,
|
|
ent->numlogs - 1);
|
|
numlogs_c = ent->numlogs - 2; /* copy for countdown */
|
|
}
|
|
|
|
/* Move down log files */
|
|
for (; numlogs_c >= 0; numlogs_c--) {
|
|
(void) strlcpy(file2, file1, sizeof(file2));
|
|
|
|
gen_classiclog_fname(file1, sizeof(file1), dirpart, namepart,
|
|
numlogs_c);
|
|
|
|
logfile_suffix = get_logfile_suffix(file1);
|
|
if (logfile_suffix == NULL)
|
|
continue;
|
|
(void) strlcpy(zfile1, file1, MAXPATHLEN);
|
|
(void) strlcpy(zfile2, file2, MAXPATHLEN);
|
|
(void) strlcat(zfile1, logfile_suffix, MAXPATHLEN);
|
|
(void) strlcat(zfile2, logfile_suffix, MAXPATHLEN);
|
|
|
|
if (noaction)
|
|
printf("\tmv %s %s\n", zfile1, zfile2);
|
|
else {
|
|
/* XXX - Ought to be checking for failure! */
|
|
(void)rename(zfile1, zfile2);
|
|
}
|
|
change_attrs(zfile2, ent);
|
|
}
|
|
|
|
if (ent->numlogs > 0) {
|
|
if (noaction) {
|
|
/*
|
|
* Note that savelog() may succeed with using link()
|
|
* for the archtodir case, but there is no good way
|
|
* of knowing if it will when doing "noaction", so
|
|
* here we claim that it will have to do a copy...
|
|
*/
|
|
if (archtodir)
|
|
printf("\tcp %s %s\n", ent->log, file1);
|
|
else
|
|
printf("\tln %s %s\n", ent->log, file1);
|
|
printf("\ttouch %s\t\t"
|
|
"# Update mtime for 'when'-interval processing\n",
|
|
file1);
|
|
} else {
|
|
if (!(flags & CE_BINARY)) {
|
|
/* Report the trimming to the old log */
|
|
log_trim(ent->log, ent);
|
|
}
|
|
savelog(ent->log, file1);
|
|
/*
|
|
* Interval-based rotations are done using the mtime of
|
|
* the most recently archived log, so make sure it gets
|
|
* updated during a rotation.
|
|
*/
|
|
utimes(file1, NULL);
|
|
}
|
|
change_attrs(file1, ent);
|
|
}
|
|
|
|
/* Create the new log file and move it into place */
|
|
if (noaction)
|
|
printf("Start new log...\n");
|
|
createlog(ent);
|
|
|
|
/*
|
|
* Save all signalling and file-compression to be done after log
|
|
* files from all entries have been rotated. This way any one
|
|
* process will not be sent the same signal multiple times when
|
|
* multiple log files had to be rotated.
|
|
*/
|
|
swork = NULL;
|
|
if (ent->pid_cmd_file != NULL)
|
|
swork = save_sigwork(ent);
|
|
if (ent->numlogs > 0 && ent->compress > COMPRESS_NONE) {
|
|
/*
|
|
* The zipwork_entry will include a pointer to this
|
|
* conf_entry, so the conf_entry should not be freed.
|
|
*/
|
|
free_or_keep = KEEP_ENT;
|
|
save_zipwork(ent, swork, ent->fsize, file1);
|
|
}
|
|
|
|
return (free_or_keep);
|
|
}
|
|
|
|
static void
|
|
do_sigwork(struct sigwork_entry *swork)
|
|
{
|
|
struct sigwork_entry *nextsig;
|
|
int kres, secs;
|
|
char *tmp;
|
|
|
|
if (swork->sw_runcmd == 0 && (!(swork->sw_pidok) || swork->sw_pid == 0))
|
|
return; /* no work to do... */
|
|
|
|
/*
|
|
* If nosignal (-s) was specified, then do not signal any process.
|
|
* Note that a nosignal request triggers a warning message if the
|
|
* rotated logfile needs to be compressed, *unless* -R was also
|
|
* specified. We assume that an `-sR' request came from a process
|
|
* which writes to the logfile, and as such, we assume that process
|
|
* has already made sure the logfile is not presently in use. This
|
|
* just sets swork->sw_pidok to a special value, and do_zipwork
|
|
* will print any necessary warning(s).
|
|
*/
|
|
if (nosignal) {
|
|
if (!rotatereq)
|
|
swork->sw_pidok = -1;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Compute the pause between consecutive signals. Use a longer
|
|
* sleep time if we will be sending two signals to the same
|
|
* deamon or process-group.
|
|
*/
|
|
secs = 0;
|
|
nextsig = SLIST_NEXT(swork, sw_nextp);
|
|
if (nextsig != NULL) {
|
|
if (swork->sw_pid == nextsig->sw_pid)
|
|
secs = 10;
|
|
else
|
|
secs = 1;
|
|
}
|
|
|
|
if (noaction) {
|
|
if (swork->sw_runcmd)
|
|
printf("\tsh -c '%s %d'\n", swork->sw_fname,
|
|
swork->sw_signum);
|
|
else {
|
|
printf("\tkill -%d %d \t\t# %s\n", swork->sw_signum,
|
|
(int)swork->sw_pid, swork->sw_fname);
|
|
if (secs > 0)
|
|
printf("\tsleep %d\n", secs);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (swork->sw_runcmd) {
|
|
asprintf(&tmp, "%s %d", swork->sw_fname, swork->sw_signum);
|
|
if (tmp == NULL) {
|
|
warn("can't allocate memory to run %s",
|
|
swork->sw_fname);
|
|
return;
|
|
}
|
|
if (verbose)
|
|
printf("Run command: %s\n", tmp);
|
|
kres = system(tmp);
|
|
if (kres) {
|
|
warnx("%s: returned non-zero exit code: %d",
|
|
tmp, kres);
|
|
}
|
|
free(tmp);
|
|
return;
|
|
}
|
|
|
|
kres = kill(swork->sw_pid, swork->sw_signum);
|
|
if (kres != 0) {
|
|
/*
|
|
* Assume that "no such process" (ESRCH) is something
|
|
* to warn about, but is not an error. Presumably the
|
|
* process which writes to the rotated log file(s) is
|
|
* gone, in which case we should have no problem with
|
|
* compressing the rotated log file(s).
|
|
*/
|
|
if (errno != ESRCH)
|
|
swork->sw_pidok = 0;
|
|
warn("can't notify %s, pid %d", swork->sw_pidtype,
|
|
(int)swork->sw_pid);
|
|
} else {
|
|
if (verbose)
|
|
printf("Notified %s pid %d = %s\n", swork->sw_pidtype,
|
|
(int)swork->sw_pid, swork->sw_fname);
|
|
if (secs > 0) {
|
|
if (verbose)
|
|
printf("Pause %d second(s) between signals\n",
|
|
secs);
|
|
sleep(secs);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
do_zipwork(struct zipwork_entry *zwork)
|
|
{
|
|
const char *pgm_name, *pgm_path;
|
|
int errsav, fcount, zstatus;
|
|
pid_t pidzip, wpid;
|
|
char zresult[MAXPATHLEN];
|
|
int c;
|
|
|
|
assert(zwork != NULL);
|
|
pgm_path = NULL;
|
|
strlcpy(zresult, zwork->zw_fname, sizeof(zresult));
|
|
if (zwork->zw_conf != NULL &&
|
|
zwork->zw_conf->compress > COMPRESS_NONE)
|
|
for (c = 1; c < COMPRESS_TYPES; c++) {
|
|
if (zwork->zw_conf->compress == c) {
|
|
pgm_path = compress_type[c].path;
|
|
(void) strlcat(zresult,
|
|
compress_type[c].suffix, sizeof(zresult));
|
|
break;
|
|
}
|
|
}
|
|
if (pgm_path == NULL) {
|
|
warnx("invalid entry for %s in do_zipwork", zwork->zw_fname);
|
|
return;
|
|
}
|
|
pgm_name = strrchr(pgm_path, '/');
|
|
if (pgm_name == NULL)
|
|
pgm_name = pgm_path;
|
|
else
|
|
pgm_name++;
|
|
|
|
if (zwork->zw_swork != NULL && zwork->zw_swork->sw_runcmd == 0 &&
|
|
zwork->zw_swork->sw_pidok <= 0) {
|
|
warnx(
|
|
"log %s not compressed because daemon(s) not notified",
|
|
zwork->zw_fname);
|
|
change_attrs(zwork->zw_fname, zwork->zw_conf);
|
|
return;
|
|
}
|
|
|
|
if (noaction) {
|
|
printf("\t%s %s\n", pgm_name, zwork->zw_fname);
|
|
change_attrs(zresult, zwork->zw_conf);
|
|
return;
|
|
}
|
|
|
|
fcount = 1;
|
|
pidzip = fork();
|
|
while (pidzip < 0) {
|
|
/*
|
|
* The fork failed. If the failure was due to a temporary
|
|
* problem, then wait a short time and try it again.
|
|
*/
|
|
errsav = errno;
|
|
warn("fork() for `%s %s'", pgm_name, zwork->zw_fname);
|
|
if (errsav != EAGAIN || fcount > 5)
|
|
errx(1, "Exiting...");
|
|
sleep(fcount * 12);
|
|
fcount++;
|
|
pidzip = fork();
|
|
}
|
|
if (!pidzip) {
|
|
/* The child process executes the compression command */
|
|
execl(pgm_path, pgm_path, "-f", zwork->zw_fname, (char *)0);
|
|
err(1, "execl(`%s -f %s')", pgm_path, zwork->zw_fname);
|
|
}
|
|
|
|
wpid = waitpid(pidzip, &zstatus, 0);
|
|
if (wpid == -1) {
|
|
/* XXX - should this be a fatal error? */
|
|
warn("%s: waitpid(%d)", pgm_path, pidzip);
|
|
return;
|
|
}
|
|
if (!WIFEXITED(zstatus)) {
|
|
warnx("`%s -f %s' did not terminate normally", pgm_name,
|
|
zwork->zw_fname);
|
|
return;
|
|
}
|
|
if (WEXITSTATUS(zstatus)) {
|
|
warnx("`%s -f %s' terminated with a non-zero status (%d)",
|
|
pgm_name, zwork->zw_fname, WEXITSTATUS(zstatus));
|
|
return;
|
|
}
|
|
|
|
/* Compression was successful, set file attributes on the result. */
|
|
change_attrs(zresult, zwork->zw_conf);
|
|
}
|
|
|
|
/*
|
|
* Save information on any process we need to signal. Any single
|
|
* process may need to be sent different signal-values for different
|
|
* log files, but usually a single signal-value will cause the process
|
|
* to close and re-open all of it's log files.
|
|
*/
|
|
static struct sigwork_entry *
|
|
save_sigwork(const struct conf_entry *ent)
|
|
{
|
|
struct sigwork_entry *sprev, *stmp;
|
|
int ndiff;
|
|
size_t tmpsiz;
|
|
|
|
sprev = NULL;
|
|
ndiff = 1;
|
|
SLIST_FOREACH(stmp, &swhead, sw_nextp) {
|
|
ndiff = strcmp(ent->pid_cmd_file, stmp->sw_fname);
|
|
if (ndiff > 0)
|
|
break;
|
|
if (ndiff == 0) {
|
|
if (ent->sig == stmp->sw_signum)
|
|
break;
|
|
if (ent->sig > stmp->sw_signum) {
|
|
ndiff = 1;
|
|
break;
|
|
}
|
|
}
|
|
sprev = stmp;
|
|
}
|
|
if (stmp != NULL && ndiff == 0)
|
|
return (stmp);
|
|
|
|
tmpsiz = sizeof(struct sigwork_entry) + strlen(ent->pid_cmd_file) + 1;
|
|
stmp = malloc(tmpsiz);
|
|
|
|
stmp->sw_runcmd = 0;
|
|
/* If this is a command to run we just set the flag and run command */
|
|
if (ent->flags & CE_PID2CMD) {
|
|
stmp->sw_pid = -1;
|
|
stmp->sw_pidok = 0;
|
|
stmp->sw_runcmd = 1;
|
|
} else {
|
|
set_swpid(stmp, ent);
|
|
}
|
|
stmp->sw_signum = ent->sig;
|
|
strcpy(stmp->sw_fname, ent->pid_cmd_file);
|
|
if (sprev == NULL)
|
|
SLIST_INSERT_HEAD(&swhead, stmp, sw_nextp);
|
|
else
|
|
SLIST_INSERT_AFTER(sprev, stmp, sw_nextp);
|
|
return (stmp);
|
|
}
|
|
|
|
/*
|
|
* Save information on any file we need to compress. We may see the same
|
|
* file multiple times, so check the full list to avoid duplicates. The
|
|
* list itself is sorted smallest-to-largest, because that's the order we
|
|
* want to compress the files. If the partition is very low on disk space,
|
|
* then the smallest files are the most likely to compress, and compressing
|
|
* them first will free up more space for the larger files.
|
|
*/
|
|
static struct zipwork_entry *
|
|
save_zipwork(const struct conf_entry *ent, const struct sigwork_entry *swork,
|
|
int zsize, const char *zipfname)
|
|
{
|
|
struct zipwork_entry *zprev, *ztmp;
|
|
int ndiff;
|
|
size_t tmpsiz;
|
|
|
|
/* Compute the size if the caller did not know it. */
|
|
if (zsize < 0)
|
|
zsize = sizefile(zipfname);
|
|
|
|
zprev = NULL;
|
|
ndiff = 1;
|
|
SLIST_FOREACH(ztmp, &zwhead, zw_nextp) {
|
|
ndiff = strcmp(zipfname, ztmp->zw_fname);
|
|
if (ndiff == 0)
|
|
break;
|
|
if (zsize > ztmp->zw_fsize)
|
|
zprev = ztmp;
|
|
}
|
|
if (ztmp != NULL && ndiff == 0)
|
|
return (ztmp);
|
|
|
|
tmpsiz = sizeof(struct zipwork_entry) + strlen(zipfname) + 1;
|
|
ztmp = malloc(tmpsiz);
|
|
ztmp->zw_conf = ent;
|
|
ztmp->zw_swork = swork;
|
|
ztmp->zw_fsize = zsize;
|
|
strcpy(ztmp->zw_fname, zipfname);
|
|
if (zprev == NULL)
|
|
SLIST_INSERT_HEAD(&zwhead, ztmp, zw_nextp);
|
|
else
|
|
SLIST_INSERT_AFTER(zprev, ztmp, zw_nextp);
|
|
return (ztmp);
|
|
}
|
|
|
|
/* Send a signal to the pid specified by pidfile */
|
|
static void
|
|
set_swpid(struct sigwork_entry *swork, const struct conf_entry *ent)
|
|
{
|
|
FILE *f;
|
|
long minok, maxok, rval;
|
|
char *endp, *linep, line[BUFSIZ];
|
|
|
|
minok = MIN_PID;
|
|
maxok = MAX_PID;
|
|
swork->sw_pidok = 0;
|
|
swork->sw_pid = 0;
|
|
swork->sw_pidtype = "daemon";
|
|
if (ent->flags & CE_SIGNALGROUP) {
|
|
/*
|
|
* If we are expected to signal a process-group when
|
|
* rotating this logfile, then the value read in should
|
|
* be the negative of a valid process ID.
|
|
*/
|
|
minok = -MAX_PID;
|
|
maxok = -MIN_PID;
|
|
swork->sw_pidtype = "process-group";
|
|
}
|
|
|
|
f = fopen(ent->pid_cmd_file, "r");
|
|
if (f == NULL) {
|
|
if (errno == ENOENT && enforcepid == 0) {
|
|
/*
|
|
* Warn if the PID file doesn't exist, but do
|
|
* not consider it an error. Most likely it
|
|
* means the process has been terminated,
|
|
* so it should be safe to rotate any log
|
|
* files that the process would have been using.
|
|
*/
|
|
swork->sw_pidok = 1;
|
|
warnx("pid file doesn't exist: %s", ent->pid_cmd_file);
|
|
} else
|
|
warn("can't open pid file: %s", ent->pid_cmd_file);
|
|
return;
|
|
}
|
|
|
|
if (fgets(line, BUFSIZ, f) == NULL) {
|
|
/*
|
|
* Warn if the PID file is empty, but do not consider
|
|
* it an error. Most likely it means the process has
|
|
* has terminated, so it should be safe to rotate any
|
|
* log files that the process would have been using.
|
|
*/
|
|
if (feof(f) && enforcepid == 0) {
|
|
swork->sw_pidok = 1;
|
|
warnx("pid/cmd file is empty: %s", ent->pid_cmd_file);
|
|
} else
|
|
warn("can't read from pid file: %s", ent->pid_cmd_file);
|
|
(void)fclose(f);
|
|
return;
|
|
}
|
|
(void)fclose(f);
|
|
|
|
errno = 0;
|
|
linep = line;
|
|
while (*linep == ' ')
|
|
linep++;
|
|
rval = strtol(linep, &endp, 10);
|
|
if (*endp != '\0' && !isspacech(*endp)) {
|
|
warnx("pid file does not start with a valid number: %s",
|
|
ent->pid_cmd_file);
|
|
} else if (rval < minok || rval > maxok) {
|
|
warnx("bad value '%ld' for process number in %s",
|
|
rval, ent->pid_cmd_file);
|
|
if (verbose)
|
|
warnx("\t(expecting value between %ld and %ld)",
|
|
minok, maxok);
|
|
} else {
|
|
swork->sw_pidok = 1;
|
|
swork->sw_pid = rval;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/* Log the fact that the logs were turned over */
|
|
static int
|
|
log_trim(const char *logname, const struct conf_entry *log_ent)
|
|
{
|
|
FILE *f;
|
|
const char *xtra;
|
|
|
|
if ((f = fopen(logname, "a")) == NULL)
|
|
return (-1);
|
|
xtra = "";
|
|
if (log_ent->def_cfg)
|
|
xtra = " using <default> rule";
|
|
if (log_ent->firstcreate)
|
|
fprintf(f, "%s %s newsyslog[%d]: logfile first created%s\n",
|
|
daytime, hostname, (int) getpid(), xtra);
|
|
else if (log_ent->r_reason != NULL)
|
|
fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s%s\n",
|
|
daytime, hostname, (int) getpid(), log_ent->r_reason, xtra);
|
|
else
|
|
fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s\n",
|
|
daytime, hostname, (int) getpid(), xtra);
|
|
if (fclose(f) == EOF)
|
|
err(1, "log_trim: fclose");
|
|
return (0);
|
|
}
|
|
|
|
/* Return size in kilobytes of a file */
|
|
static int
|
|
sizefile(const char *file)
|
|
{
|
|
struct stat sb;
|
|
|
|
if (stat(file, &sb) < 0)
|
|
return (-1);
|
|
return (kbytes(dbtob(sb.st_blocks)));
|
|
}
|
|
|
|
/*
|
|
* Return the mtime of the most recent archive of the logfile, using timestamp
|
|
* based filenames.
|
|
*/
|
|
static time_t
|
|
mtime_old_timelog(const char *file)
|
|
{
|
|
struct stat sb;
|
|
struct tm tm;
|
|
int dir_fd;
|
|
time_t t;
|
|
struct dirent *dp;
|
|
DIR *dirp;
|
|
char *s, *logfname, *dir;
|
|
|
|
t = -1;
|
|
|
|
if ((dir = dirname(file)) == NULL) {
|
|
warn("dirname() of '%s'", file);
|
|
return (t);
|
|
}
|
|
if ((s = basename(file)) == NULL) {
|
|
warn("basename() of '%s'", file);
|
|
return (t);
|
|
} else if (s[0] == '/') {
|
|
warnx("Invalid log filename '%s'", s);
|
|
return (t);
|
|
} else if ((logfname = strdup(s)) == NULL)
|
|
err(1, "strdup()");
|
|
|
|
if ((dirp = opendir(dir)) == NULL) {
|
|
warn("Cannot open log directory '%s'", dir);
|
|
return (t);
|
|
}
|
|
dir_fd = dirfd(dirp);
|
|
/* Open the archive dir and find the most recent archive of logfname. */
|
|
while ((dp = readdir(dirp)) != NULL) {
|
|
if (validate_old_timelog(dir_fd, dp, logfname, &tm) == 0)
|
|
continue;
|
|
|
|
if (fstatat(dir_fd, dp->d_name, &sb, AT_SYMLINK_NOFOLLOW) == -1) {
|
|
warn("Cannot stat '%s'", file);
|
|
continue;
|
|
}
|
|
if (t < sb.st_mtime)
|
|
t = sb.st_mtime;
|
|
}
|
|
closedir(dirp);
|
|
|
|
return (t);
|
|
}
|
|
|
|
/* Return the age in hours of the most recent archive of the logfile. */
|
|
static int
|
|
age_old_log(const char *file)
|
|
{
|
|
struct stat sb;
|
|
const char *logfile_suffix;
|
|
char tmp[MAXPATHLEN + sizeof(".0") + COMPRESS_SUFFIX_MAXLEN + 1];
|
|
time_t mtime;
|
|
|
|
if (archtodir) {
|
|
char *p;
|
|
|
|
/* build name of archive directory into tmp */
|
|
if (*archdirname == '/') { /* absolute */
|
|
strlcpy(tmp, archdirname, sizeof(tmp));
|
|
} else { /* relative */
|
|
/* get directory part of logfile */
|
|
strlcpy(tmp, file, sizeof(tmp));
|
|
if ((p = strrchr(tmp, '/')) == NULL)
|
|
tmp[0] = '\0';
|
|
else
|
|
*(p + 1) = '\0';
|
|
strlcat(tmp, archdirname, sizeof(tmp));
|
|
}
|
|
|
|
strlcat(tmp, "/", sizeof(tmp));
|
|
|
|
/* get filename part of logfile */
|
|
if ((p = strrchr(file, '/')) == NULL)
|
|
strlcat(tmp, file, sizeof(tmp));
|
|
else
|
|
strlcat(tmp, p + 1, sizeof(tmp));
|
|
} else {
|
|
(void) strlcpy(tmp, file, sizeof(tmp));
|
|
}
|
|
|
|
if (timefnamefmt != NULL) {
|
|
mtime = mtime_old_timelog(tmp);
|
|
if (mtime == -1)
|
|
return (-1);
|
|
} else {
|
|
strlcat(tmp, ".0", sizeof(tmp));
|
|
logfile_suffix = get_logfile_suffix(tmp);
|
|
if (logfile_suffix == NULL)
|
|
return (-1);
|
|
(void) strlcat(tmp, logfile_suffix, sizeof(tmp));
|
|
if (stat(tmp, &sb) < 0)
|
|
return (-1);
|
|
mtime = sb.st_mtime;
|
|
}
|
|
|
|
return ((int)(ptimeget_secs(timenow) - mtime + 1800) / 3600);
|
|
}
|
|
|
|
/* Skip Over Blanks */
|
|
static char *
|
|
sob(char *p)
|
|
{
|
|
while (p && *p && isspace(*p))
|
|
p++;
|
|
return (p);
|
|
}
|
|
|
|
/* Skip Over Non-Blanks */
|
|
static char *
|
|
son(char *p)
|
|
{
|
|
while (p && *p && !isspace(*p))
|
|
p++;
|
|
return (p);
|
|
}
|
|
|
|
/* Check if string is actually a number */
|
|
static int
|
|
isnumberstr(const char *string)
|
|
{
|
|
while (*string) {
|
|
if (!isdigitch(*string++))
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
/* Check if string contains a glob */
|
|
static int
|
|
isglobstr(const char *string)
|
|
{
|
|
char chr;
|
|
|
|
while ((chr = *string++)) {
|
|
if (chr == '*' || chr == '?' || chr == '[')
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Save the active log file under a new name. A link to the new name
|
|
* is the quick-and-easy way to do this. If that fails (which it will
|
|
* if the destination is on another partition), then make a copy of
|
|
* the file to the new location.
|
|
*/
|
|
static void
|
|
savelog(char *from, char *to)
|
|
{
|
|
FILE *src, *dst;
|
|
int c, res;
|
|
|
|
res = link(from, to);
|
|
if (res == 0)
|
|
return;
|
|
|
|
if ((src = fopen(from, "r")) == NULL)
|
|
err(1, "can't fopen %s for reading", from);
|
|
if ((dst = fopen(to, "w")) == NULL)
|
|
err(1, "can't fopen %s for writing", to);
|
|
|
|
while ((c = getc(src)) != EOF) {
|
|
if ((putc(c, dst)) == EOF)
|
|
err(1, "error writing to %s", to);
|
|
}
|
|
|
|
if (ferror(src))
|
|
err(1, "error reading from %s", from);
|
|
if ((fclose(src)) != 0)
|
|
err(1, "can't fclose %s", to);
|
|
if ((fclose(dst)) != 0)
|
|
err(1, "can't fclose %s", from);
|
|
}
|
|
|
|
/* create one or more directory components of a path */
|
|
static void
|
|
createdir(const struct conf_entry *ent, char *dirpart)
|
|
{
|
|
int res;
|
|
char *s, *d;
|
|
char mkdirpath[MAXPATHLEN];
|
|
struct stat st;
|
|
|
|
s = dirpart;
|
|
d = mkdirpath;
|
|
|
|
for (;;) {
|
|
*d++ = *s++;
|
|
if (*s != '/' && *s != '\0')
|
|
continue;
|
|
*d = '\0';
|
|
res = lstat(mkdirpath, &st);
|
|
if (res != 0) {
|
|
if (noaction) {
|
|
printf("\tmkdir %s\n", mkdirpath);
|
|
} else {
|
|
res = mkdir(mkdirpath, 0755);
|
|
if (res != 0)
|
|
err(1, "Error on mkdir(\"%s\") for -a",
|
|
mkdirpath);
|
|
}
|
|
}
|
|
if (*s == '\0')
|
|
break;
|
|
}
|
|
if (verbose) {
|
|
if (ent->firstcreate)
|
|
printf("Created directory '%s' for new %s\n",
|
|
dirpart, ent->log);
|
|
else
|
|
printf("Created directory '%s' for -a\n", dirpart);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Create a new log file, destroying any currently-existing version
|
|
* of the log file in the process. If the caller wants a backup copy
|
|
* of the file to exist, they should call 'link(logfile,logbackup)'
|
|
* before calling this routine.
|
|
*/
|
|
void
|
|
createlog(const struct conf_entry *ent)
|
|
{
|
|
int fd, failed;
|
|
struct stat st;
|
|
char *realfile, *slash, tempfile[MAXPATHLEN];
|
|
|
|
fd = -1;
|
|
realfile = ent->log;
|
|
|
|
/*
|
|
* If this log file is being created for the first time (-C option),
|
|
* then it may also be true that the parent directory does not exist
|
|
* yet. Check, and create that directory if it is missing.
|
|
*/
|
|
if (ent->firstcreate) {
|
|
strlcpy(tempfile, realfile, sizeof(tempfile));
|
|
slash = strrchr(tempfile, '/');
|
|
if (slash != NULL) {
|
|
*slash = '\0';
|
|
failed = stat(tempfile, &st);
|
|
if (failed && errno != ENOENT)
|
|
err(1, "Error on stat(%s)", tempfile);
|
|
if (failed)
|
|
createdir(ent, tempfile);
|
|
else if (!S_ISDIR(st.st_mode))
|
|
errx(1, "%s exists but is not a directory",
|
|
tempfile);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* First create an unused filename, so it can be chown'ed and
|
|
* chmod'ed before it is moved into the real location. mkstemp
|
|
* will create the file mode=600 & owned by us. Note that all
|
|
* temp files will have a suffix of '.z<something>'.
|
|
*/
|
|
strlcpy(tempfile, realfile, sizeof(tempfile));
|
|
strlcat(tempfile, ".zXXXXXX", sizeof(tempfile));
|
|
if (noaction)
|
|
printf("\tmktemp %s\n", tempfile);
|
|
else {
|
|
fd = mkstemp(tempfile);
|
|
if (fd < 0)
|
|
err(1, "can't mkstemp logfile %s", tempfile);
|
|
|
|
/*
|
|
* Add status message to what will become the new log file.
|
|
*/
|
|
if (!(ent->flags & CE_BINARY)) {
|
|
if (log_trim(tempfile, ent))
|
|
err(1, "can't add status message to log");
|
|
}
|
|
}
|
|
|
|
/* Change the owner/group, if we are supposed to */
|
|
if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) {
|
|
if (noaction)
|
|
printf("\tchown %u:%u %s\n", ent->uid, ent->gid,
|
|
tempfile);
|
|
else {
|
|
failed = fchown(fd, ent->uid, ent->gid);
|
|
if (failed)
|
|
err(1, "can't fchown temp file %s", tempfile);
|
|
}
|
|
}
|
|
|
|
/* Turn on NODUMP if it was requested in the config-file. */
|
|
if (ent->flags & CE_NODUMP) {
|
|
if (noaction)
|
|
printf("\tchflags nodump %s\n", tempfile);
|
|
else {
|
|
failed = fchflags(fd, UF_NODUMP);
|
|
if (failed) {
|
|
warn("log_trim: fchflags(NODUMP)");
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Note that if the real logfile still exists, and if the call
|
|
* to rename() fails, then "neither the old file nor the new
|
|
* file shall be changed or created" (to quote the standard).
|
|
* If the call succeeds, then the file will be replaced without
|
|
* any window where some other process might find that the file
|
|
* did not exist.
|
|
* XXX - ? It may be that for some error conditions, we could
|
|
* retry by first removing the realfile and then renaming.
|
|
*/
|
|
if (noaction) {
|
|
printf("\tchmod %o %s\n", ent->permissions, tempfile);
|
|
printf("\tmv %s %s\n", tempfile, realfile);
|
|
} else {
|
|
failed = fchmod(fd, ent->permissions);
|
|
if (failed)
|
|
err(1, "can't fchmod temp file '%s'", tempfile);
|
|
failed = rename(tempfile, realfile);
|
|
if (failed)
|
|
err(1, "can't mv %s to %s", tempfile, realfile);
|
|
}
|
|
|
|
if (fd >= 0)
|
|
close(fd);
|
|
}
|
|
|
|
/*
|
|
* Change the attributes of a given filename to what was specified in
|
|
* the newsyslog.conf entry. This routine is only called for files
|
|
* that newsyslog expects that it has created, and thus it is a fatal
|
|
* error if this routine finds that the file does not exist.
|
|
*/
|
|
static void
|
|
change_attrs(const char *fname, const struct conf_entry *ent)
|
|
{
|
|
int failed;
|
|
|
|
if (noaction) {
|
|
printf("\tchmod %o %s\n", ent->permissions, fname);
|
|
|
|
if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1)
|
|
printf("\tchown %u:%u %s\n",
|
|
ent->uid, ent->gid, fname);
|
|
|
|
if (ent->flags & CE_NODUMP)
|
|
printf("\tchflags nodump %s\n", fname);
|
|
return;
|
|
}
|
|
|
|
failed = chmod(fname, ent->permissions);
|
|
if (failed) {
|
|
if (errno != EPERM)
|
|
err(1, "chmod(%s) in change_attrs", fname);
|
|
warn("change_attrs couldn't chmod(%s)", fname);
|
|
}
|
|
|
|
if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) {
|
|
failed = chown(fname, ent->uid, ent->gid);
|
|
if (failed)
|
|
warn("can't chown %s", fname);
|
|
}
|
|
|
|
if (ent->flags & CE_NODUMP) {
|
|
failed = chflags(fname, UF_NODUMP);
|
|
if (failed)
|
|
warn("can't chflags %s NODUMP", fname);
|
|
}
|
|
}
|