newsyslog.c revision 210372
1130167Sgad/*- 2130167Sgad * ------+---------+---------+-------- + --------+---------+---------+---------* 3130167Sgad * This file includes significant modifications done by: 4130167Sgad * Copyright (c) 2003, 2004 - Garance Alistair Drosehn <gad@FreeBSD.org>. 5130167Sgad * All rights reserved. 6130167Sgad * 7130167Sgad * Redistribution and use in source and binary forms, with or without 8130167Sgad * modification, are permitted provided that the following conditions 9130167Sgad * are met: 10130167Sgad * 1. Redistributions of source code must retain the above copyright 11130167Sgad * notice, this list of conditions and the following disclaimer. 12130167Sgad * 2. Redistributions in binary form must reproduce the above copyright 13130167Sgad * notice, this list of conditions and the following disclaimer in the 14130167Sgad * documentation and/or other materials provided with the distribution. 15130167Sgad * 16130167Sgad * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17130167Sgad * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18130167Sgad * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19130167Sgad * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20130167Sgad * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21130167Sgad * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22130167Sgad * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23130167Sgad * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24130167Sgad * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25130167Sgad * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26130167Sgad * SUCH DAMAGE. 27130167Sgad * 28130167Sgad * ------+---------+---------+-------- + --------+---------+---------+---------* 29130167Sgad */ 30130167Sgad 3113244Sgraichen/* 3213244Sgraichen * This file contains changes from the Open Software Foundation. 3313244Sgraichen */ 3413244Sgraichen 3513244Sgraichen/* 3659004Shm * Copyright 1988, 1989 by the Massachusetts Institute of Technology 3759004Shm * 3859004Shm * Permission to use, copy, modify, and distribute this software and its 3959004Shm * documentation for any purpose and without fee is hereby granted, provided 4059004Shm * that the above copyright notice appear in all copies and that both that 4159004Shm * copyright notice and this permission notice appear in supporting 4259004Shm * documentation, and that the names of M.I.T. and the M.I.T. S.I.P.B. not be 4359004Shm * used in advertising or publicity pertaining to distribution of the 4459004Shm * software without specific, written prior permission. M.I.T. and the M.I.T. 4559004Shm * S.I.P.B. make no representations about the suitability of this software 4659004Shm * for any purpose. It is provided "as is" without express or implied 4759004Shm * warranty. 4859004Shm * 4959004Shm */ 5013244Sgraichen 5113244Sgraichen/* 5259004Shm * newsyslog - roll over selected logs at the appropriate time, keeping the a 5359004Shm * specified number of backup files around. 5413244Sgraichen */ 5513244Sgraichen 56114601Sobrien#include <sys/cdefs.h> 57114601Sobrien__FBSDID("$FreeBSD: head/usr.sbin/newsyslog/newsyslog.c 210372 2010-07-22 11:23:18Z simon $"); 5813244Sgraichen 59130045Sgad#define OSF 6013244Sgraichen#ifndef COMPRESS_POSTFIX 61130045Sgad#define COMPRESS_POSTFIX ".gz" 6213244Sgraichen#endif 6380638Sobrien#ifndef BZCOMPRESS_POSTFIX 6480638Sobrien#define BZCOMPRESS_POSTFIX ".bz2" 6580638Sobrien#endif 6613244Sgraichen 6796001Smaxim#include <sys/param.h> 68130167Sgad#include <sys/queue.h> 6996001Smaxim#include <sys/stat.h> 7096001Smaxim#include <sys/wait.h> 7196001Smaxim 72210372Ssimon#include <assert.h> 7330160Scharnier#include <ctype.h> 7430160Scharnier#include <err.h> 7595999Smaxim#include <errno.h> 76210372Ssimon#include <dirent.h> 7730160Scharnier#include <fcntl.h> 78111773Sgad#include <fnmatch.h> 79106905Ssobomax#include <glob.h> 8030160Scharnier#include <grp.h> 8143071Swollman#include <paths.h> 8230160Scharnier#include <pwd.h> 8330160Scharnier#include <signal.h> 8413244Sgraichen#include <stdio.h> 85210372Ssimon#include <libgen.h> 8613244Sgraichen#include <stdlib.h> 8713244Sgraichen#include <string.h> 8843071Swollman#include <time.h> 8916240Salex#include <unistd.h> 9013244Sgraichen 9143071Swollman#include "pathnames.h" 92119998Sgad#include "extern.h" 9343071Swollman 94111768Sgad/* 95111768Sgad * Bit-values for the 'flags' parsed from a config-file entry. 96111768Sgad */ 97175837Sdelphij#define CE_COMPACT 0x0001 /* Compact the archived log files with gzip. */ 98175837Sdelphij#define CE_BZCOMPACT 0x0002 /* Compact the archived log files with bzip2. */ 99130045Sgad#define CE_BINARY 0x0008 /* Logfile is in binary, do not add status */ 100111768Sgad /* messages to logfile(s) when rotating. */ 101130045Sgad#define CE_NOSIGNAL 0x0010 /* There is no process to signal when */ 102111768Sgad /* trimming this file. */ 103130045Sgad#define CE_TRIMAT 0x0020 /* trim file at a specific time. */ 104130045Sgad#define CE_GLOB 0x0040 /* name of the log is file name pattern. */ 105130045Sgad#define CE_SIGNALGROUP 0x0080 /* Signal a process-group instead of a single */ 106112003Sgad /* process when trimming this file. */ 107130045Sgad#define CE_CREATE 0x0100 /* Create the log file if it does not exist. */ 108130043Sgad#define CE_NODUMP 0x0200 /* Set 'nodump' on newly created log file. */ 10943071Swollman 110130045Sgad#define MIN_PID 5 /* Don't touch pids lower than this */ 111130045Sgad#define MAX_PID 99999 /* was lower, see /usr/include/sys/proc.h */ 112111781Sgad 113130045Sgad#define kbytes(size) (((size) + 1023) >> 10) 114111781Sgad 115130165Sgad#define DEFAULT_MARKER "<default>" 116130165Sgad#define DEBUG_MARKER "<debug>" 117208649Sgordon#define INCLUDE_MARKER "<include>" 118210372Ssimon#define DEFAULT_TIMEFNAME_FMT "%Y%m%dT%H%M%S" 119130165Sgad 120210372Ssimon#define MAX_OLDLOGS 65536 /* Default maximum number of old logfiles */ 121210372Ssimon 12213244Sgraichenstruct conf_entry { 123208648Sgordon STAILQ_ENTRY(conf_entry) cf_nextp; 12459003Shm char *log; /* Name of the log */ 12559003Shm char *pid_file; /* PID file */ 126111772Sgad char *r_reason; /* The reason this file is being rotated */ 127114137Sgad int firstcreate; /* Creating log for the first time (-C). */ 128111772Sgad int rotate; /* Non-zero if this file should be rotated */ 129130165Sgad int fsize; /* size found for the log file */ 130111779Sgad uid_t uid; /* Owner of log */ 131111779Sgad gid_t gid; /* Group of log */ 13259003Shm int numlogs; /* Number of logs to keep */ 133130165Sgad int trsize; /* Size cutoff to trigger trimming the log */ 13459003Shm int hours; /* Hours between log trimming */ 135120361Sgad struct ptime_data *trim_at; /* Specific time to do trimming */ 136139655Sdelphij unsigned int permissions; /* File permissions on the log */ 13780646Sobrien int flags; /* CE_COMPACT, CE_BZCOMPACT, CE_BINARY */ 13859003Shm int sig; /* Signal to send */ 139111388Sgad int def_cfg; /* Using the <default> rule for this file */ 14013244Sgraichen}; 14113244Sgraichen 142130167Sgadstruct sigwork_entry { 143130167Sgad SLIST_ENTRY(sigwork_entry) sw_nextp; 144130167Sgad int sw_signum; /* the signal to send */ 145130167Sgad int sw_pidok; /* true if pid value is valid */ 146130167Sgad pid_t sw_pid; /* the process id from the PID file */ 147130167Sgad const char *sw_pidtype; /* "daemon" or "process group" */ 148130167Sgad char sw_fname[1]; /* file the PID was read from */ 149130167Sgad}; 150130167Sgad 151130167Sgadstruct zipwork_entry { 152130167Sgad SLIST_ENTRY(zipwork_entry) zw_nextp; 153130167Sgad const struct conf_entry *zw_conf; /* for chown/perm/flag info */ 154130167Sgad const struct sigwork_entry *zw_swork; /* to know success of signal */ 155130167Sgad int zw_fsize; /* size of the file to compress */ 156130167Sgad char zw_fname[1]; /* the file to compress */ 157130167Sgad}; 158130167Sgad 159208649Sgordonstruct include_entry { 160208649Sgordon STAILQ_ENTRY(include_entry) inc_nextp; 161208649Sgordon const char *file; /* Name of file to process */ 162208649Sgordon}; 163208649Sgordon 164210372Ssimonstruct oldlog_entry { 165210372Ssimon char *fname; /* Filename of the log file */ 166210372Ssimon time_t t; /* Parses timestamp of the logfile */ 167210372Ssimon}; 168210372Ssimon 169130165Sgadtypedef enum { 170130165Sgad FREE_ENT, KEEP_ENT 171130165Sgad} fk_entry; 172111388Sgad 173208648SgordonSTAILQ_HEAD(cflist, conf_entry); 174130167SgadSLIST_HEAD(swlisthead, sigwork_entry) swhead = SLIST_HEAD_INITIALIZER(swhead); 175130167SgadSLIST_HEAD(zwlisthead, zipwork_entry) zwhead = SLIST_HEAD_INITIALIZER(zwhead); 176208649SgordonSTAILQ_HEAD(ilist, include_entry); 177130167Sgad 178120361Sgadint dbg_at_times; /* -D Show details of 'trim_at' code */ 179120361Sgad 18059004Shmint archtodir = 0; /* Archive old logfiles to other directory */ 181114137Sgadint createlogs; /* Create (non-GLOB) logfiles which do not */ 182114137Sgad /* already exist. 1=='for entries with */ 183114137Sgad /* C flag', 2=='for all entries'. */ 18459003Shmint verbose = 0; /* Print out what's going on */ 18559003Shmint needroot = 1; /* Root privs are necessary */ 18659003Shmint noaction = 0; /* Don't do anything, just show it */ 187143106Sbrooksint norotate = 0; /* Don't rotate */ 188111768Sgadint nosignal; /* Do not send any signals */ 189202668Sdelphijint enforcepid = 0; /* If PID file does not exist or empty, do nothing */ 19059003Shmint force = 0; /* Force the trim no matter what */ 191111772Sgadint rotatereq = 0; /* -R = Always rotate the file(s) as given */ 192111772Sgad /* on the command (this also requires */ 193111772Sgad /* that a list of files *are* given on */ 194111772Sgad /* the run command). */ 195111772Sgadchar *requestor; /* The name given on a -R request */ 196210372Ssimonchar *timefnamefmt = NULL; /* Use time based filenames instead of .0 etc */ 19759004Shmchar *archdirname; /* Directory path to old logfiles archive */ 198136127Sbrookschar *destdir = NULL; /* Directory to treat at root for logs */ 199111773Sgadconst char *conf; /* Configuration file to use */ 20059003Shm 201120361Sgadstruct ptime_data *dbg_timenow; /* A "timenow" value set via -D option */ 202120361Sgadstruct ptime_data *timenow; /* The time to use for checking at-fields */ 203120361Sgad 204159998Sgad#define DAYTIME_LEN 16 205159998Sgadchar daytime[DAYTIME_LEN]; /* The current time in human readable form, 206159998Sgad * used for rotation-tracking messages. */ 20771299Sjedgarchar hostname[MAXHOSTNAMELEN]; /* hostname */ 20813244Sgraichen 209208648Sgordonstatic struct cflist *get_worklist(char **files); 210208648Sgordonstatic void parse_file(FILE *cf, struct cflist *work_p, struct cflist *glob_p, 211208649Sgordon struct conf_entry *defconf_p, struct ilist *inclist); 212208649Sgordonstatic void add_to_queue(const char *fname, struct ilist *inclist); 21316240Salexstatic char *sob(char *p); 21416240Salexstatic char *son(char *p); 215119102Sgadstatic int isnumberstr(const char *); 216208649Sgordonstatic int isglobstr(const char *); 21759003Shmstatic char *missing_field(char *p, char *errline); 218130165Sgadstatic void change_attrs(const char *, const struct conf_entry *); 219130165Sgadstatic fk_entry do_entry(struct conf_entry *); 220130165Sgadstatic fk_entry do_rotate(const struct conf_entry *); 221130167Sgadstatic void do_sigwork(struct sigwork_entry *); 222130167Sgadstatic void do_zipwork(struct zipwork_entry *); 223130167Sgadstatic struct sigwork_entry * 224130167Sgad save_sigwork(const struct conf_entry *); 225130167Sgadstatic struct zipwork_entry * 226130167Sgad save_zipwork(const struct conf_entry *, const struct 227130167Sgad sigwork_entry *, int, const char *); 228130167Sgadstatic void set_swpid(struct sigwork_entry *, const struct conf_entry *); 229130165Sgadstatic int sizefile(const char *); 230208648Sgordonstatic void expand_globs(struct cflist *work_p, struct cflist *glob_p); 231208648Sgordonstatic void free_clist(struct cflist *list); 232111388Sgadstatic void free_entry(struct conf_entry *ent); 233111388Sgadstatic struct conf_entry *init_entry(const char *fname, 234111388Sgad struct conf_entry *src_entry); 235111781Sgadstatic void parse_args(int argc, char **argv); 236119904Sgadstatic int parse_doption(const char *doption); 23780640Sobrienstatic void usage(void); 238119926Sgadstatic int log_trim(const char *logname, const struct conf_entry *log_ent); 23916240Salexstatic int age_old_log(char *file); 240130038Sgadstatic void savelog(char *from, char *to); 241114137Sgadstatic void createdir(const struct conf_entry *ent, char *dirpart); 242114137Sgadstatic void createlog(const struct conf_entry *ent); 24313244Sgraichen 244111768Sgad/* 245129975Sgad * All the following take a parameter of 'int', but expect values in the 246129975Sgad * range of unsigned char. Define wrappers which take values of type 'char', 247129975Sgad * whether signed or unsigned, and ensure they end up in the right range. 248111768Sgad */ 249129975Sgad#define isdigitch(Anychar) isdigit((u_char)(Anychar)) 250129975Sgad#define isprintch(Anychar) isprint((u_char)(Anychar)) 251129975Sgad#define isspacech(Anychar) isspace((u_char)(Anychar)) 252129975Sgad#define tolowerch(Anychar) tolower((u_char)(Anychar)) 253111768Sgad 25459004Shmint 25559004Shmmain(int argc, char **argv) 25613244Sgraichen{ 257208648Sgordon struct cflist *worklist; 258208648Sgordon struct conf_entry *p; 259130167Sgad struct sigwork_entry *stmp; 260130167Sgad struct zipwork_entry *ztmp; 26125443Sache 262130167Sgad SLIST_INIT(&swhead); 263130167Sgad SLIST_INIT(&zwhead); 264130167Sgad 265111781Sgad parse_args(argc, argv); 266111773Sgad argc -= optind; 267111773Sgad argv += optind; 268111773Sgad 26959003Shm if (needroot && getuid() && geteuid()) 27059003Shm errx(1, "must have root privs"); 271208648Sgordon worklist = get_worklist(argv); 27259003Shm 273130165Sgad /* 274130165Sgad * Rotate all the files which need to be rotated. Note that 275130165Sgad * some users have *hundreds* of entries in newsyslog.conf! 276130165Sgad */ 277208648Sgordon while (!STAILQ_EMPTY(worklist)) { 278208648Sgordon p = STAILQ_FIRST(worklist); 279208648Sgordon STAILQ_REMOVE_HEAD(worklist, cf_nextp); 280208648Sgordon if (do_entry(p) == FREE_ENT) 281208648Sgordon free_entry(p); 28259003Shm } 283130165Sgad 284130167Sgad /* 285130167Sgad * Send signals to any processes which need a signal to tell 286130167Sgad * them to close and re-open the log file(s) we have rotated. 287130167Sgad * Note that zipwork_entries include pointers to these 288130167Sgad * sigwork_entry's, so we can not free the entries here. 289130167Sgad */ 290130167Sgad if (!SLIST_EMPTY(&swhead)) { 291130204Sgad if (noaction || verbose) 292130167Sgad printf("Signal all daemon process(es)...\n"); 293130167Sgad SLIST_FOREACH(stmp, &swhead, sw_nextp) 294130167Sgad do_sigwork(stmp); 295130204Sgad if (noaction) 296130204Sgad printf("\tsleep 10\n"); 297130204Sgad else { 298130204Sgad if (verbose) 299130204Sgad printf("Pause 10 seconds to allow daemon(s)" 300130204Sgad " to close log file(s)\n"); 301130204Sgad sleep(10); 302130204Sgad } 303130167Sgad } 304130167Sgad /* 305130167Sgad * Compress all files that we're expected to compress, now 306130167Sgad * that all processes should have closed the files which 307130167Sgad * have been rotated. 308130167Sgad */ 309130167Sgad if (!SLIST_EMPTY(&zwhead)) { 310130204Sgad if (noaction || verbose) 311130167Sgad printf("Compress all rotated log file(s)...\n"); 312130167Sgad while (!SLIST_EMPTY(&zwhead)) { 313130167Sgad ztmp = SLIST_FIRST(&zwhead); 314130167Sgad do_zipwork(ztmp); 315130167Sgad SLIST_REMOVE_HEAD(&zwhead, zw_nextp); 316130167Sgad free(ztmp); 317130167Sgad } 318130167Sgad } 319130167Sgad /* Now free all the sigwork entries. */ 320130167Sgad while (!SLIST_EMPTY(&swhead)) { 321130167Sgad stmp = SLIST_FIRST(&swhead); 322130167Sgad SLIST_REMOVE_HEAD(&swhead, sw_nextp); 323130167Sgad free(stmp); 324130167Sgad } 325130167Sgad 32695999Smaxim while (wait(NULL) > 0 || errno == EINTR) 32795999Smaxim ; 32859003Shm return (0); 32913244Sgraichen} 33013244Sgraichen 331111388Sgadstatic struct conf_entry * 332111388Sgadinit_entry(const char *fname, struct conf_entry *src_entry) 333111388Sgad{ 334111388Sgad struct conf_entry *tempwork; 335111388Sgad 336111388Sgad if (verbose > 4) 337111388Sgad printf("\t--> [creating entry for %s]\n", fname); 338111388Sgad 339111388Sgad tempwork = malloc(sizeof(struct conf_entry)); 340111388Sgad if (tempwork == NULL) 341111388Sgad err(1, "malloc of conf_entry for %s", fname); 342111388Sgad 343136174Sbrooks if (destdir == NULL || fname[0] != '/') 344136127Sbrooks tempwork->log = strdup(fname); 345136127Sbrooks else 346136127Sbrooks asprintf(&tempwork->log, "%s%s", destdir, fname); 347111388Sgad if (tempwork->log == NULL) 348111388Sgad err(1, "strdup for %s", fname); 349111388Sgad 350111388Sgad if (src_entry != NULL) { 351111388Sgad tempwork->pid_file = NULL; 352111388Sgad if (src_entry->pid_file) 353111388Sgad tempwork->pid_file = strdup(src_entry->pid_file); 354111772Sgad tempwork->r_reason = NULL; 355114137Sgad tempwork->firstcreate = 0; 356111772Sgad tempwork->rotate = 0; 357130165Sgad tempwork->fsize = -1; 358111388Sgad tempwork->uid = src_entry->uid; 359111388Sgad tempwork->gid = src_entry->gid; 360111388Sgad tempwork->numlogs = src_entry->numlogs; 361130165Sgad tempwork->trsize = src_entry->trsize; 362111388Sgad tempwork->hours = src_entry->hours; 363120361Sgad tempwork->trim_at = NULL; 364120361Sgad if (src_entry->trim_at != NULL) 365120361Sgad tempwork->trim_at = ptime_init(src_entry->trim_at); 366111388Sgad tempwork->permissions = src_entry->permissions; 367111388Sgad tempwork->flags = src_entry->flags; 368111388Sgad tempwork->sig = src_entry->sig; 369111388Sgad tempwork->def_cfg = src_entry->def_cfg; 370111388Sgad } else { 371111388Sgad /* Initialize as a "do-nothing" entry */ 372111388Sgad tempwork->pid_file = NULL; 373111772Sgad tempwork->r_reason = NULL; 374114137Sgad tempwork->firstcreate = 0; 375111772Sgad tempwork->rotate = 0; 376130165Sgad tempwork->fsize = -1; 377111779Sgad tempwork->uid = (uid_t)-1; 378111779Sgad tempwork->gid = (gid_t)-1; 379111388Sgad tempwork->numlogs = 1; 380130165Sgad tempwork->trsize = -1; 381111388Sgad tempwork->hours = -1; 382120361Sgad tempwork->trim_at = NULL; 383111388Sgad tempwork->permissions = 0; 384111388Sgad tempwork->flags = 0; 385111388Sgad tempwork->sig = SIGHUP; 386111388Sgad tempwork->def_cfg = 0; 387111388Sgad } 388111388Sgad 389111388Sgad return (tempwork); 390111388Sgad} 391111388Sgad 39259004Shmstatic void 393111388Sgadfree_entry(struct conf_entry *ent) 394111388Sgad{ 395111388Sgad 396111388Sgad if (ent == NULL) 397111388Sgad return; 398111388Sgad 399111388Sgad if (ent->log != NULL) { 400111388Sgad if (verbose > 4) 401111388Sgad printf("\t--> [freeing entry for %s]\n", ent->log); 402111388Sgad free(ent->log); 403111388Sgad ent->log = NULL; 404111388Sgad } 405111388Sgad 406111388Sgad if (ent->pid_file != NULL) { 407111388Sgad free(ent->pid_file); 408111388Sgad ent->pid_file = NULL; 409111388Sgad } 410111388Sgad 411111772Sgad if (ent->r_reason != NULL) { 412111772Sgad free(ent->r_reason); 413111772Sgad ent->r_reason = NULL; 414111772Sgad } 415111772Sgad 416120361Sgad if (ent->trim_at != NULL) { 417120361Sgad ptime_free(ent->trim_at); 418120361Sgad ent->trim_at = NULL; 419120361Sgad } 420120361Sgad 421111388Sgad free(ent); 422111388Sgad} 423111388Sgad 424111388Sgadstatic void 425208648Sgordonfree_clist(struct cflist *list) 426112020Sgad{ 427208648Sgordon struct conf_entry *ent; 428112020Sgad 429208648Sgordon while (!STAILQ_EMPTY(list)) { 430208648Sgordon ent = STAILQ_FIRST(list); 431208648Sgordon STAILQ_REMOVE_HEAD(list, cf_nextp); 432112020Sgad free_entry(ent); 433112020Sgad } 434208648Sgordon 435208648Sgordon free(list); 436208648Sgordon list = NULL; 437112020Sgad} 438112020Sgad 439130165Sgadstatic fk_entry 44059004Shmdo_entry(struct conf_entry * ent) 44113244Sgraichen{ 442130045Sgad#define REASON_MAX 80 443130165Sgad int modtime; 444130165Sgad fk_entry free_or_keep; 445120361Sgad double diffsecs; 446111772Sgad char temp_reason[REASON_MAX]; 44759003Shm 448130165Sgad free_or_keep = FREE_ENT; 44959003Shm if (verbose) { 45059003Shm if (ent->flags & CE_COMPACT) 45159003Shm printf("%s <%dZ>: ", ent->log, ent->numlogs); 45280638Sobrien else if (ent->flags & CE_BZCOMPACT) 45380638Sobrien printf("%s <%dJ>: ", ent->log, ent->numlogs); 45459003Shm else 45559003Shm printf("%s <%d>: ", ent->log, ent->numlogs); 45659003Shm } 457130165Sgad ent->fsize = sizefile(ent->log); 45859003Shm modtime = age_old_log(ent->log); 459111772Sgad ent->rotate = 0; 460114137Sgad ent->firstcreate = 0; 461130165Sgad if (ent->fsize < 0) { 462114137Sgad /* 463114137Sgad * If either the C flag or the -C option was specified, 464114137Sgad * and if we won't be creating the file, then have the 465114137Sgad * verbose message include a hint as to why the file 466114137Sgad * will not be created. 467114137Sgad */ 468114137Sgad temp_reason[0] = '\0'; 469114137Sgad if (createlogs > 1) 470114137Sgad ent->firstcreate = 1; 471114137Sgad else if ((ent->flags & CE_CREATE) && createlogs) 472114137Sgad ent->firstcreate = 1; 473114137Sgad else if (ent->flags & CE_CREATE) 474159998Sgad strlcpy(temp_reason, " (no -C option)", REASON_MAX); 475114137Sgad else if (createlogs) 476159998Sgad strlcpy(temp_reason, " (no C flag)", REASON_MAX); 477114137Sgad 478114137Sgad if (ent->firstcreate) { 479114137Sgad if (verbose) 480114137Sgad printf("does not exist -> will create.\n"); 481114137Sgad createlog(ent); 482114137Sgad } else if (verbose) { 483114137Sgad printf("does not exist, skipped%s.\n", temp_reason); 484114137Sgad } 48559003Shm } else { 486111772Sgad if (ent->flags & CE_TRIMAT && !force && !rotatereq) { 487120361Sgad diffsecs = ptimeget_diff(timenow, ent->trim_at); 488120361Sgad if (diffsecs < 0.0) { 489120361Sgad /* trim_at is some time in the future. */ 490120361Sgad if (verbose) { 491120361Sgad ptime_adjust4dst(ent->trim_at, 492120361Sgad timenow); 49343071Swollman printf("--> will trim at %s", 494120361Sgad ptimeget_ctime(ent->trim_at)); 495120361Sgad } 496130165Sgad return (free_or_keep); 497120361Sgad } else if (diffsecs >= 3600.0) { 498120361Sgad /* 499120361Sgad * trim_at is more than an hour in the past, 500120361Sgad * so find the next valid trim_at time, and 501120361Sgad * tell the user what that will be. 502120361Sgad */ 503120361Sgad if (verbose && dbg_at_times) 504120361Sgad printf("\n\t--> prev trim at %s\t", 505120361Sgad ptimeget_ctime(ent->trim_at)); 506120361Sgad if (verbose) { 507120361Sgad ptimeset_nxtime(ent->trim_at); 508120361Sgad printf("--> will trim at %s", 509120361Sgad ptimeget_ctime(ent->trim_at)); 510120361Sgad } 511130165Sgad return (free_or_keep); 512120361Sgad } else if (verbose && noaction && dbg_at_times) { 513120361Sgad /* 514120361Sgad * If we are just debugging at-times, then 515120361Sgad * a detailed message is helpful. Also 516120361Sgad * skip "doing" any commands, since they 517120361Sgad * would all be turned off by no-action. 518120361Sgad */ 519120361Sgad printf("\n\t--> timematch at %s", 520120361Sgad ptimeget_ctime(ent->trim_at)); 521130165Sgad return (free_or_keep); 52243071Swollman } else if (verbose && ent->hours <= 0) { 52343071Swollman printf("--> time is up\n"); 52443071Swollman } 52543071Swollman } 526130165Sgad if (verbose && (ent->trsize > 0)) 527130165Sgad printf("size (Kb): %d [%d] ", ent->fsize, ent->trsize); 52859003Shm if (verbose && (ent->hours > 0)) 52959003Shm printf(" age (hr): %d [%d] ", modtime, ent->hours); 530111772Sgad 531111772Sgad /* 532111772Sgad * Figure out if this logfile needs to be rotated. 533111772Sgad */ 534111772Sgad temp_reason[0] = '\0'; 535111772Sgad if (rotatereq) { 536111772Sgad ent->rotate = 1; 537111772Sgad snprintf(temp_reason, REASON_MAX, " due to -R from %s", 538111772Sgad requestor); 539111772Sgad } else if (force) { 540111772Sgad ent->rotate = 1; 541111772Sgad snprintf(temp_reason, REASON_MAX, " due to -F request"); 542130165Sgad } else if ((ent->trsize > 0) && (ent->fsize >= ent->trsize)) { 543111772Sgad ent->rotate = 1; 544111772Sgad snprintf(temp_reason, REASON_MAX, " due to size>%dK", 545130165Sgad ent->trsize); 546111772Sgad } else if (ent->hours <= 0 && (ent->flags & CE_TRIMAT)) { 547111772Sgad ent->rotate = 1; 548111772Sgad } else if ((ent->hours > 0) && ((modtime >= ent->hours) || 549111772Sgad (modtime < 0))) { 550111772Sgad ent->rotate = 1; 551111772Sgad } 552111772Sgad 553111772Sgad /* 554111772Sgad * If the file needs to be rotated, then rotate it. 555111772Sgad */ 556143106Sbrooks if (ent->rotate && !norotate) { 557111772Sgad if (temp_reason[0] != '\0') 558111772Sgad ent->r_reason = strdup(temp_reason); 55959003Shm if (verbose) 56059003Shm printf("--> trimming log....\n"); 56159003Shm if (noaction && !verbose) { 56259003Shm if (ent->flags & CE_COMPACT) 56359003Shm printf("%s <%dZ>: trimming\n", 56459003Shm ent->log, ent->numlogs); 56580638Sobrien else if (ent->flags & CE_BZCOMPACT) 56680638Sobrien printf("%s <%dJ>: trimming\n", 56780638Sobrien ent->log, ent->numlogs); 56859003Shm else 56959003Shm printf("%s <%d>: trimming\n", 57059003Shm ent->log, ent->numlogs); 57159003Shm } 572130165Sgad free_or_keep = do_rotate(ent); 57359003Shm } else { 57459003Shm if (verbose) 57559003Shm printf("--> skipping\n"); 57659003Shm } 57759003Shm } 578130165Sgad return (free_or_keep); 579111772Sgad#undef REASON_MAX 58013244Sgraichen} 58113244Sgraichen 58259004Shmstatic void 583111781Sgadparse_args(int argc, char **argv) 58413244Sgraichen{ 585111781Sgad int ch; 58659003Shm char *p; 58713244Sgraichen 588120361Sgad timenow = ptime_init(NULL); 589120361Sgad ptimeset_time(timenow, time(NULL)); 590159998Sgad strlcpy(daytime, ptimeget_ctime(timenow) + 4, DAYTIME_LEN); 59113244Sgraichen 59259003Shm /* Let's get our hostname */ 593111781Sgad (void)gethostname(hostname, sizeof(hostname)); 59413244Sgraichen 59513244Sgraichen /* Truncate domain */ 596111781Sgad if ((p = strchr(hostname, '.')) != NULL) 59713244Sgraichen *p = '\0'; 598111768Sgad 599111768Sgad /* Parse command line options. */ 600210372Ssimon while ((ch = getopt(argc, argv, "a:d:f:nrst:vCD:FNPR:")) != -1) 601111781Sgad switch (ch) { 60259004Shm case 'a': 60359004Shm archtodir++; 60459004Shm archdirname = optarg; 60559004Shm break; 606136127Sbrooks case 'd': 607136127Sbrooks destdir = optarg; 608136127Sbrooks break; 609111768Sgad case 'f': 610111768Sgad conf = optarg; 611111768Sgad break; 612111768Sgad case 'n': 613111768Sgad noaction++; 614111768Sgad break; 61559003Shm case 'r': 61659003Shm needroot = 0; 61759003Shm break; 618111768Sgad case 's': 619111768Sgad nosignal = 1; 620111768Sgad break; 621210372Ssimon case 't': 622210372Ssimon if (optarg[0] == '\0' || 623210372Ssimon strcmp(optarg, "DEFAULT") == 0) 624210372Ssimon timefnamefmt = strdup(DEFAULT_TIMEFNAME_FMT); 625210372Ssimon else 626210372Ssimon timefnamefmt = strdup(optarg); 627210372Ssimon break; 62859003Shm case 'v': 62959003Shm verbose++; 63059003Shm break; 631114137Sgad case 'C': 632114137Sgad /* Useful for things like rc.diskless... */ 633114137Sgad createlogs++; 634114137Sgad break; 635119904Sgad case 'D': 636119904Sgad /* 637119904Sgad * Set some debugging option. The specific option 638119904Sgad * depends on the value of optarg. These options 639119904Sgad * may come and go without notice or documentation. 640119904Sgad */ 641119904Sgad if (parse_doption(optarg)) 642119904Sgad break; 643119904Sgad usage(); 644119904Sgad /* NOTREACHED */ 64534584Spst case 'F': 64634584Spst force++; 64734584Spst break; 648143106Sbrooks case 'N': 649143106Sbrooks norotate++; 650143106Sbrooks break; 651202668Sdelphij case 'P': 652202668Sdelphij enforcepid++; 653202668Sdelphij break; 654111772Sgad case 'R': 655111772Sgad rotatereq++; 656111772Sgad requestor = strdup(optarg); 657111772Sgad break; 658111781Sgad case 'm': /* Used by OpenBSD for "monitor mode" */ 65959003Shm default: 66059003Shm usage(); 661111768Sgad /* NOTREACHED */ 66259003Shm } 663111772Sgad 664143106Sbrooks if (force && norotate) { 665143106Sbrooks warnx("Only one of -F and -N may be specified."); 666143106Sbrooks usage(); 667143106Sbrooks /* NOTREACHED */ 668143106Sbrooks } 669143106Sbrooks 670111772Sgad if (rotatereq) { 671111772Sgad if (optind == argc) { 672111772Sgad warnx("At least one filename must be given when -R is specified."); 673111772Sgad usage(); 674111772Sgad /* NOTREACHED */ 675111772Sgad } 676111772Sgad /* Make sure "requestor" value is safe for a syslog message. */ 677111772Sgad for (p = requestor; *p != '\0'; p++) { 678111772Sgad if (!isprintch(*p) && (*p != '\t')) 679111772Sgad *p = '.'; 680111772Sgad } 681111772Sgad } 682119904Sgad 683119904Sgad if (dbg_timenow) { 684119904Sgad /* 685119904Sgad * Note that the 'daytime' variable is not changed. 686119904Sgad * That is only used in messages that track when a 687119904Sgad * logfile is rotated, and if a file *is* rotated, 688119904Sgad * then it will still rotated at the "real now" time. 689119904Sgad */ 690120361Sgad ptime_free(timenow); 691119904Sgad timenow = dbg_timenow; 692119904Sgad fprintf(stderr, "Debug: Running as if TimeNow is %s", 693120361Sgad ptimeget_ctime(dbg_timenow)); 694119904Sgad } 695119904Sgad 69643071Swollman} 69713244Sgraichen 698120361Sgad/* 699120361Sgad * These debugging options are mainly meant for developer use, such 700120361Sgad * as writing regression-tests. They would not be needed by users 701120361Sgad * during normal operation of newsyslog... 702120361Sgad */ 703119904Sgadstatic int 704119904Sgadparse_doption(const char *doption) 705119904Sgad{ 706119904Sgad const char TN[] = "TN="; 707120361Sgad int res; 708119904Sgad 709119904Sgad if (strncmp(doption, TN, sizeof(TN) - 1) == 0) { 710119904Sgad /* 711120361Sgad * The "TimeNow" debugging option. This might be off 712120361Sgad * by an hour when crossing a timezone change. 713119904Sgad */ 714120361Sgad dbg_timenow = ptime_init(NULL); 715120361Sgad res = ptime_relparse(dbg_timenow, PTM_PARSE_ISO8601, 716120361Sgad time(NULL), doption + sizeof(TN) - 1); 717120361Sgad if (res == -2) { 718120361Sgad warnx("Non-existent time specified on -D %s", doption); 719120361Sgad return (0); /* failure */ 720120361Sgad } else if (res < 0) { 721119904Sgad warnx("Malformed time given on -D %s", doption); 722119904Sgad return (0); /* failure */ 723119904Sgad } 724119904Sgad return (1); /* successfully parsed */ 725119904Sgad 726119904Sgad } 727119904Sgad 728120361Sgad if (strcmp(doption, "ats") == 0) { 729120361Sgad dbg_at_times++; 730120361Sgad return (1); /* successfully parsed */ 731120361Sgad } 732120361Sgad 733159968Sgad /* XXX - This check could probably be dropped. */ 734159968Sgad if ((strcmp(doption, "neworder") == 0) || (strcmp(doption, "oldorder") 735159968Sgad == 0)) { 736159968Sgad warnx("NOTE: newsyslog always uses 'neworder'."); 737130167Sgad return (1); /* successfully parsed */ 738130167Sgad } 739130167Sgad 740130165Sgad warnx("Unknown -D (debug) option: '%s'", doption); 741119904Sgad return (0); /* failure */ 742119904Sgad} 743119904Sgad 74459004Shmstatic void 74559004Shmusage(void) 74613244Sgraichen{ 74780646Sobrien 74880646Sobrien fprintf(stderr, 749143106Sbrooks "usage: newsyslog [-CFNnrsv] [-a directory] [-d directory] [-f config-file]\n" 750210372Ssimon " [-t timefmt ] [ [-R requestor] filename ... ]\n"); 75159003Shm exit(1); 75213244Sgraichen} 75313244Sgraichen 75459004Shm/* 755111773Sgad * Parse a configuration file and return a linked list of all the logs 756111773Sgad * which should be processed. 75713244Sgraichen */ 758208648Sgordonstatic struct cflist * 759111773Sgadget_worklist(char **files) 76013244Sgraichen{ 76159003Shm FILE *f; 762111773Sgad char **given; 763208649Sgordon struct cflist *cmdlist, *filelist, *globlist; 764208648Sgordon struct conf_entry *defconf, *dupent, *ent; 765208649Sgordon struct ilist inclist; 766208649Sgordon struct include_entry *inc; 767112020Sgad int gmatch, fnres; 768111773Sgad 769208648Sgordon defconf = NULL; 770208649Sgordon STAILQ_INIT(&inclist); 771111773Sgad 772208648Sgordon filelist = malloc(sizeof(struct cflist)); 773208648Sgordon if (filelist == NULL) 774208648Sgordon err(1, "malloc of filelist"); 775208648Sgordon STAILQ_INIT(filelist); 776208648Sgordon globlist = malloc(sizeof(struct cflist)); 777208648Sgordon if (globlist == NULL) 778208648Sgordon err(1, "malloc of globlist"); 779208648Sgordon STAILQ_INIT(globlist); 780208648Sgordon 781208649Sgordon inc = malloc(sizeof(struct include_entry)); 782208649Sgordon if (inc == NULL) 783208649Sgordon err(1, "malloc of inc"); 784208649Sgordon inc->file = conf; 785208649Sgordon if (inc->file == NULL) 786208649Sgordon inc->file = _PATH_CONF; 787208649Sgordon STAILQ_INSERT_TAIL(&inclist, inc, inc_nextp); 788111773Sgad 789208649Sgordon STAILQ_FOREACH(inc, &inclist, inc_nextp) { 790208649Sgordon if (strcmp(inc->file, "-") != 0) 791208649Sgordon f = fopen(inc->file, "r"); 792208649Sgordon else { 793208649Sgordon f = stdin; 794208649Sgordon inc->file = "<stdin>"; 795208649Sgordon } 796208649Sgordon if (!f) 797208649Sgordon err(1, "%s", inc->file); 798208649Sgordon 799208649Sgordon if (verbose) 800208649Sgordon printf("Processing %s\n", inc->file); 801208649Sgordon parse_file(f, filelist, globlist, defconf, &inclist); 802208649Sgordon (void) fclose(f); 803111773Sgad } 804111773Sgad 805111773Sgad /* 806111773Sgad * All config-file information has been read in and turned into 807208648Sgordon * a filelist and a globlist. If there were no specific files 808112020Sgad * given on the run command, then the only thing left to do is to 809112020Sgad * call a routine which finds all files matched by the globlist 810208648Sgordon * and adds them to the filelist. Then return the worklist. 811111773Sgad */ 812111773Sgad if (*files == NULL) { 813208648Sgordon expand_globs(filelist, globlist); 814208648Sgordon free_clist(globlist); 815111773Sgad if (defconf != NULL) 816111773Sgad free_entry(defconf); 817208648Sgordon return (filelist); 818111773Sgad /* NOTREACHED */ 819111773Sgad } 820111773Sgad 821111773Sgad /* 822111773Sgad * If newsyslog was given a specific list of files to process, 823111773Sgad * it may be that some of those files were not listed in any 824111773Sgad * config file. Those unlisted files should get the default 825111773Sgad * rotation action. First, create the default-rotation action 826111773Sgad * if none was found in a system config file. 827111773Sgad */ 828111773Sgad if (defconf == NULL) { 829111773Sgad defconf = init_entry(DEFAULT_MARKER, NULL); 830111773Sgad defconf->numlogs = 3; 831130165Sgad defconf->trsize = 50; 832111773Sgad defconf->permissions = S_IRUSR|S_IWUSR; 833111773Sgad } 834111773Sgad 835111773Sgad /* 836111773Sgad * If newsyslog was run with a list of specific filenames, 837111773Sgad * then create a new worklist which has only those files in 838111773Sgad * it, picking up the rotation-rules for those files from 839208648Sgordon * the original filelist. 840111773Sgad * 841111773Sgad * XXX - Note that this will copy multiple rules for a single 842111773Sgad * logfile, if multiple entries are an exact match for 843111773Sgad * that file. That matches the historic behavior, but do 844111773Sgad * we want to continue to allow it? If so, it should 845111773Sgad * probably be handled more intelligently. 846111773Sgad */ 847208648Sgordon cmdlist = malloc(sizeof(struct cflist)); 848208648Sgordon if (cmdlist == NULL) 849208648Sgordon err(1, "malloc of cmdlist"); 850208648Sgordon STAILQ_INIT(cmdlist); 851208648Sgordon 852111773Sgad for (given = files; *given; ++given) { 853111773Sgad /* 854111773Sgad * First try to find exact-matches for this given file. 855111773Sgad */ 856112020Sgad gmatch = 0; 857208648Sgordon STAILQ_FOREACH(ent, filelist, cf_nextp) { 858111773Sgad if (strcmp(ent->log, *given) == 0) { 859111773Sgad gmatch++; 860111773Sgad dupent = init_entry(*given, ent); 861208648Sgordon STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp); 862111773Sgad } 863111773Sgad } 864111773Sgad if (gmatch) { 865111773Sgad if (verbose > 2) 866111773Sgad printf("\t+ Matched entry %s\n", *given); 867111773Sgad continue; 868111773Sgad } 869111773Sgad 870111773Sgad /* 871111773Sgad * There was no exact-match for this given file, so look 872111773Sgad * for a "glob" entry which does match. 873111773Sgad */ 874112020Sgad gmatch = 0; 875112020Sgad if (verbose > 2 && globlist != NULL) 876112020Sgad printf("\t+ Checking globs for %s\n", *given); 877208648Sgordon STAILQ_FOREACH(ent, globlist, cf_nextp) { 878112020Sgad fnres = fnmatch(ent->log, *given, FNM_PATHNAME); 879112020Sgad if (verbose > 2) 880112020Sgad printf("\t+ = %d for pattern %s\n", fnres, 881112020Sgad ent->log); 882112020Sgad if (fnres == 0) { 883111773Sgad gmatch++; 884111773Sgad dupent = init_entry(*given, ent); 885112020Sgad /* This new entry is not a glob! */ 886111773Sgad dupent->flags &= ~CE_GLOB; 887208648Sgordon STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp); 888111773Sgad /* Only allow a match to one glob-entry */ 889111773Sgad break; 890111773Sgad } 891111773Sgad } 892111773Sgad if (gmatch) { 893111773Sgad if (verbose > 2) 894111773Sgad printf("\t+ Matched %s via %s\n", *given, 895111773Sgad ent->log); 896111773Sgad continue; 897111773Sgad } 898111773Sgad 899111773Sgad /* 900111773Sgad * This given file was not found in any config file, so 901111773Sgad * add a worklist item based on the default entry. 902111773Sgad */ 903111773Sgad if (verbose > 2) 904111773Sgad printf("\t+ No entry matched %s (will use %s)\n", 905111773Sgad *given, DEFAULT_MARKER); 906111773Sgad dupent = init_entry(*given, defconf); 907111773Sgad /* Mark that it was *not* found in a config file */ 908111773Sgad dupent->def_cfg = 1; 909208648Sgordon STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp); 910111773Sgad } 911111773Sgad 912111773Sgad /* 913112020Sgad * Free all the entries in the original work list, the list of 914112020Sgad * glob entries, and the default entry. 915111773Sgad */ 916208648Sgordon free_clist(filelist); 917208648Sgordon free_clist(globlist); 918112020Sgad free_entry(defconf); 919111773Sgad 920112020Sgad /* And finally, return a worklist which matches the given files. */ 921208648Sgordon return (cmdlist); 922111773Sgad} 923111773Sgad 924111773Sgad/* 925112020Sgad * Expand the list of entries with filename patterns, and add all files 926112020Sgad * which match those glob-entries onto the worklist. 927112020Sgad */ 928112020Sgadstatic void 929208648Sgordonexpand_globs(struct cflist *work_p, struct cflist *glob_p) 930112020Sgad{ 931161412Sdelphij int gmatch, gres; 932161412Sdelphij size_t i; 933112020Sgad char *mfname; 934208648Sgordon struct conf_entry *dupent, *ent, *globent; 935112020Sgad glob_t pglob; 936112020Sgad struct stat st_fm; 937112020Sgad 938112020Sgad /* 939112020Sgad * The worklist contains all fully-specified (non-GLOB) names. 940112020Sgad * 941112020Sgad * Now expand the list of filename-pattern (GLOB) entries into 942112020Sgad * a second list, which (by definition) will only match files 943112020Sgad * that already exist. Do not add a glob-related entry for any 944112020Sgad * file which already exists in the fully-specified list. 945112020Sgad */ 946208648Sgordon STAILQ_FOREACH(globent, glob_p, cf_nextp) { 947112020Sgad gres = glob(globent->log, GLOB_NOCHECK, NULL, &pglob); 948112020Sgad if (gres != 0) { 949112020Sgad warn("cannot expand pattern (%d): %s", gres, 950112020Sgad globent->log); 951112020Sgad continue; 952112020Sgad } 953112020Sgad 954112020Sgad if (verbose > 2) 955112020Sgad printf("\t+ Expanding pattern %s\n", globent->log); 956112020Sgad for (i = 0; i < pglob.gl_matchc; i++) { 957112020Sgad mfname = pglob.gl_pathv[i]; 958112020Sgad 959112020Sgad /* See if this file already has a specific entry. */ 960112020Sgad gmatch = 0; 961208648Sgordon STAILQ_FOREACH(ent, work_p, cf_nextp) { 962112020Sgad if (strcmp(mfname, ent->log) == 0) { 963112020Sgad gmatch++; 964112020Sgad break; 965112020Sgad } 966112020Sgad } 967112020Sgad if (gmatch) 968112020Sgad continue; 969112020Sgad 970112020Sgad /* Make sure the named matched is a file. */ 971112020Sgad gres = lstat(mfname, &st_fm); 972112020Sgad if (gres != 0) { 973112020Sgad /* Error on a file that glob() matched?!? */ 974112020Sgad warn("Skipping %s - lstat() error", mfname); 975112020Sgad continue; 976112020Sgad } 977112020Sgad if (!S_ISREG(st_fm.st_mode)) { 978112020Sgad /* We only rotate files! */ 979112020Sgad if (verbose > 2) 980112020Sgad printf("\t+ . skipping %s (!file)\n", 981112020Sgad mfname); 982112020Sgad continue; 983112020Sgad } 984112020Sgad 985112020Sgad if (verbose > 2) 986112020Sgad printf("\t+ . add file %s\n", mfname); 987112020Sgad dupent = init_entry(mfname, globent); 988112020Sgad /* This new entry is not a glob! */ 989112020Sgad dupent->flags &= ~CE_GLOB; 990208648Sgordon 991208648Sgordon /* Add to the worklist. */ 992208648Sgordon STAILQ_INSERT_TAIL(work_p, dupent, cf_nextp); 993112020Sgad } 994112020Sgad globfree(&pglob); 995112020Sgad if (verbose > 2) 996112020Sgad printf("\t+ Done with pattern %s\n", globent->log); 997112020Sgad } 998112020Sgad} 999112020Sgad 1000112020Sgad/* 1001111773Sgad * Parse a configuration file and update a linked list of all the logs to 1002111773Sgad * process. 1003111773Sgad */ 1004111773Sgadstatic void 1005208648Sgordonparse_file(FILE *cf, struct cflist *work_p, struct cflist *glob_p, 1006208649Sgordon struct conf_entry *defconf_p, struct ilist *inclist) 1007111773Sgad{ 100859003Shm char line[BUFSIZ], *parse, *q; 1009107737Ssobomax char *cp, *errline, *group; 1010208648Sgordon struct conf_entry *working; 1011111781Sgad struct passwd *pwd; 101259003Shm struct group *grp; 1013208649Sgordon glob_t pglob; 1014120361Sgad int eol, ptm_opts, res, special; 1015208649Sgordon size_t i; 101613244Sgraichen 1017130165Sgad errline = NULL; 1018111773Sgad while (fgets(line, BUFSIZ, cf)) { 1019107737Ssobomax if ((line[0] == '\n') || (line[0] == '#') || 1020107737Ssobomax (strlen(line) == 0)) 102159003Shm continue; 1022130165Sgad if (errline != NULL) 1023130165Sgad free(errline); 102459003Shm errline = strdup(line); 1025107737Ssobomax for (cp = line + 1; *cp != '\0'; cp++) { 1026107737Ssobomax if (*cp != '#') 1027107737Ssobomax continue; 1028107737Ssobomax if (*(cp - 1) == '\\') { 1029107737Ssobomax strcpy(cp - 1, cp); 1030107737Ssobomax cp--; 1031107737Ssobomax continue; 1032107737Ssobomax } 1033107737Ssobomax *cp = '\0'; 1034107737Ssobomax break; 1035107737Ssobomax } 103660373Sdes 103760373Sdes q = parse = missing_field(sob(line), errline); 103860373Sdes parse = son(line); 103960373Sdes if (!*parse) 104080646Sobrien errx(1, "malformed line (missing fields):\n%s", 104180646Sobrien errline); 104260373Sdes *parse = '\0'; 104360373Sdes 1044130165Sgad /* 1045130165Sgad * Allow people to set debug options via the config file. 1046208648Sgordon * (NOTE: debug options are undocumented, and may disappear 1047130165Sgad * at any time, etc). 1048130165Sgad */ 1049130165Sgad if (strcasecmp(DEBUG_MARKER, q) == 0) { 1050130165Sgad q = parse = missing_field(sob(++parse), errline); 1051130165Sgad parse = son(parse); 1052130165Sgad if (!*parse) 1053130165Sgad warnx("debug line specifies no option:\n%s", 1054130165Sgad errline); 1055130165Sgad else { 1056130165Sgad *parse = '\0'; 1057130165Sgad parse_doption(q); 1058130165Sgad } 1059130165Sgad continue; 1060208649Sgordon } else if (strcasecmp(INCLUDE_MARKER, q) == 0) { 1061208649Sgordon if (verbose) 1062208649Sgordon printf("Found: %s", errline); 1063208649Sgordon q = parse = missing_field(sob(++parse), errline); 1064208649Sgordon parse = son(parse); 1065208649Sgordon if (!*parse) { 1066208649Sgordon warnx("include line missing argument:\n%s", 1067208649Sgordon errline); 1068208649Sgordon continue; 1069208649Sgordon } 1070208649Sgordon 1071208649Sgordon *parse = '\0'; 1072208649Sgordon 1073208649Sgordon if (isglobstr(q)) { 1074208649Sgordon res = glob(q, GLOB_NOCHECK, NULL, &pglob); 1075208649Sgordon if (res != 0) { 1076208649Sgordon warn("cannot expand pattern (%d): %s", 1077208649Sgordon res, q); 1078208649Sgordon continue; 1079208649Sgordon } 1080208649Sgordon 1081208649Sgordon if (verbose > 2) 1082208649Sgordon printf("\t+ Expanding pattern %s\n", q); 1083208649Sgordon 1084208649Sgordon for (i = 0; i < pglob.gl_matchc; i++) 1085208649Sgordon add_to_queue(pglob.gl_pathv[i], 1086208649Sgordon inclist); 1087208649Sgordon globfree(&pglob); 1088208649Sgordon } else 1089208649Sgordon add_to_queue(q, inclist); 1090208649Sgordon continue; 1091130165Sgad } 1092130165Sgad 1093112020Sgad special = 0; 1094111388Sgad working = init_entry(q, NULL); 1095111388Sgad if (strcasecmp(DEFAULT_MARKER, q) == 0) { 1096112020Sgad special = 1; 1097208648Sgordon if (defconf_p != NULL) { 1098111388Sgad warnx("Ignoring duplicate entry for %s!", q); 1099111388Sgad free_entry(working); 1100111388Sgad continue; 1101111388Sgad } 1102208648Sgordon defconf_p = working; 110359003Shm } 110413244Sgraichen 110559003Shm q = parse = missing_field(sob(++parse), errline); 110659003Shm parse = son(parse); 110725518Sbrian if (!*parse) 110880646Sobrien errx(1, "malformed line (missing fields):\n%s", 110980646Sobrien errline); 111059003Shm *parse = '\0'; 111159003Shm if ((group = strchr(q, ':')) != NULL || 111259003Shm (group = strrchr(q, '.')) != NULL) { 111359003Shm *group++ = '\0'; 111459003Shm if (*q) { 1115119102Sgad if (!(isnumberstr(q))) { 1116111781Sgad if ((pwd = getpwnam(q)) == NULL) 111759003Shm errx(1, 111880646Sobrien "error in config file; unknown user:\n%s", 111959003Shm errline); 1120111781Sgad working->uid = pwd->pw_uid; 112159003Shm } else 112259003Shm working->uid = atoi(q); 112359003Shm } else 1124111779Sgad working->uid = (uid_t)-1; 112513244Sgraichen 112659003Shm q = group; 112759003Shm if (*q) { 1128119102Sgad if (!(isnumberstr(q))) { 112959003Shm if ((grp = getgrnam(q)) == NULL) 113059003Shm errx(1, 113180646Sobrien "error in config file; unknown group:\n%s", 113259003Shm errline); 113359003Shm working->gid = grp->gr_gid; 113459003Shm } else 113559003Shm working->gid = atoi(q); 113659003Shm } else 1137111779Sgad working->gid = (gid_t)-1; 113813244Sgraichen 113959003Shm q = parse = missing_field(sob(++parse), errline); 114059003Shm parse = son(parse); 114159003Shm if (!*parse) 114280646Sobrien errx(1, "malformed line (missing fields):\n%s", 114380646Sobrien errline); 114459003Shm *parse = '\0'; 1145111779Sgad } else { 1146111779Sgad working->uid = (uid_t)-1; 1147111779Sgad working->gid = (gid_t)-1; 1148111779Sgad } 114959003Shm 115059003Shm if (!sscanf(q, "%o", &working->permissions)) 115159003Shm errx(1, "error in config file; bad permissions:\n%s", 115259003Shm errline); 115359003Shm 115459003Shm q = parse = missing_field(sob(++parse), errline); 115559003Shm parse = son(parse); 115625518Sbrian if (!*parse) 115780646Sobrien errx(1, "malformed line (missing fields):\n%s", 115880646Sobrien errline); 115959003Shm *parse = '\0'; 1160111400Sgad if (!sscanf(q, "%d", &working->numlogs) || working->numlogs < 0) 1161111400Sgad errx(1, "error in config file; bad value for count of logs to save:\n%s", 116259003Shm errline); 116313244Sgraichen 116459003Shm q = parse = missing_field(sob(++parse), errline); 116559003Shm parse = son(parse); 116625518Sbrian if (!*parse) 116780646Sobrien errx(1, "malformed line (missing fields):\n%s", 116880646Sobrien errline); 116959003Shm *parse = '\0'; 1170114762Sgad if (isdigitch(*q)) 1171130165Sgad working->trsize = atoi(q); 1172130165Sgad else if (strcmp(q, "*") == 0) 1173130165Sgad working->trsize = -1; 1174114762Sgad else { 1175114762Sgad warnx("Invalid value of '%s' for 'size' in line:\n%s", 1176114762Sgad q, errline); 1177130165Sgad working->trsize = -1; 1178114762Sgad } 117959003Shm 118059003Shm working->flags = 0; 118159003Shm q = parse = missing_field(sob(++parse), errline); 118259003Shm parse = son(parse); 118325518Sbrian eol = !*parse; 118459003Shm *parse = '\0'; 118543071Swollman { 118659003Shm char *ep; 118759003Shm u_long ul; 118813244Sgraichen 118943071Swollman ul = strtoul(q, &ep, 10); 119043071Swollman if (ep == q) 119143071Swollman working->hours = 0; 119243071Swollman else if (*ep == '*') 119343071Swollman working->hours = -1; 119443071Swollman else if (ul > INT_MAX) 119543071Swollman errx(1, "interval is too large:\n%s", errline); 119643071Swollman else 119743071Swollman working->hours = ul; 119843071Swollman 1199120361Sgad if (*ep == '\0' || strcmp(ep, "*") == 0) 1200120361Sgad goto no_trimat; 1201120361Sgad if (*ep != '@' && *ep != '$') 120243071Swollman errx(1, "malformed interval/at:\n%s", errline); 1203120361Sgad 1204120361Sgad working->flags |= CE_TRIMAT; 1205120361Sgad working->trim_at = ptime_init(NULL); 1206120361Sgad ptm_opts = PTM_PARSE_ISO8601; 1207120361Sgad if (*ep == '$') 1208120361Sgad ptm_opts = PTM_PARSE_DWM; 1209120361Sgad ptm_opts |= PTM_PARSE_MATCHDOM; 1210120361Sgad res = ptime_relparse(working->trim_at, ptm_opts, 1211120361Sgad ptimeget_secs(timenow), ep + 1); 1212120361Sgad if (res == -2) 1213120361Sgad errx(1, "nonexistent time for 'at' value:\n%s", 1214120361Sgad errline); 1215120361Sgad else if (res < 0) 1216120361Sgad errx(1, "malformed 'at' value:\n%s", errline); 121743071Swollman } 1218120361Sgadno_trimat: 121943071Swollman 122025518Sbrian if (eol) 122159003Shm q = NULL; 122225518Sbrian else { 122359003Shm q = parse = sob(++parse); /* Optional field */ 122459003Shm parse = son(parse); 122559003Shm if (!*parse) 122659003Shm eol = 1; 122759003Shm *parse = '\0'; 122825518Sbrian } 122925443Sache 1230111768Sgad for (; q && *q && !isspacech(*q); q++) { 1231111768Sgad switch (tolowerch(*q)) { 1232111768Sgad case 'b': 123359003Shm working->flags |= CE_BINARY; 1234111768Sgad break; 1235114137Sgad case 'c': 1236111768Sgad /* 1237114137Sgad * XXX - Ick! Ugly! Remove ASAP! 1238114137Sgad * We want `c' and `C' for "create". But we 1239114137Sgad * will temporarily treat `c' as `g', because 1240114137Sgad * FreeBSD releases <= 4.8 have a typo of 1241114137Sgad * checking ('G' || 'c') for CE_GLOB. 1242111768Sgad */ 1243114137Sgad if (*q == 'c') { 1244114137Sgad warnx("Assuming 'g' for 'c' in flags for line:\n%s", 1245114137Sgad errline); 1246114137Sgad warnx("The 'c' flag will eventually mean 'CREATE'"); 1247114137Sgad working->flags |= CE_GLOB; 1248114137Sgad break; 1249114137Sgad } 1250114137Sgad working->flags |= CE_CREATE; 1251114137Sgad break; 1252130043Sgad case 'd': 1253130043Sgad working->flags |= CE_NODUMP; 1254130043Sgad break; 1255111768Sgad case 'g': 1256106905Ssobomax working->flags |= CE_GLOB; 1257111768Sgad break; 1258111768Sgad case 'j': 1259111768Sgad working->flags |= CE_BZCOMPACT; 1260111768Sgad break; 1261111768Sgad case 'n': 1262111768Sgad working->flags |= CE_NOSIGNAL; 1263111768Sgad break; 1264112003Sgad case 'u': 1265112003Sgad working->flags |= CE_SIGNALGROUP; 1266112003Sgad break; 1267111768Sgad case 'w': 1268160560Ssobomax /* Depreciated flag - keep for compatibility purposes */ 1269111768Sgad break; 1270111768Sgad case 'z': 1271111768Sgad working->flags |= CE_COMPACT; 1272111768Sgad break; 1273111768Sgad case '-': 1274111768Sgad break; 1275111781Sgad case 'f': /* Used by OpenBSD for "CE_FOLLOW" */ 1276111781Sgad case 'm': /* Used by OpenBSD for "CE_MONITOR" */ 1277111781Sgad case 'p': /* Used by NetBSD for "CE_PLAIN0" */ 1278111768Sgad default: 127980646Sobrien errx(1, "illegal flag in config file -- %c", 128080646Sobrien *q); 1281111768Sgad } 128259003Shm } 128359003Shm 128425518Sbrian if (eol) 128559003Shm q = NULL; 128625518Sbrian else { 128759003Shm q = parse = sob(++parse); /* Optional field */ 128859003Shm parse = son(parse); 128959003Shm if (!*parse) 129059003Shm eol = 1; 129159003Shm *parse = '\0'; 129225518Sbrian } 129325443Sache 129425443Sache working->pid_file = NULL; 129525443Sache if (q && *q) { 129625443Sache if (*q == '/') 129725443Sache working->pid_file = strdup(q); 129836817Sache else if (isdigit(*q)) 129936817Sache goto got_sig; 130059003Shm else 130180646Sobrien errx(1, 130280646Sobrien "illegal pid file or signal number in config file:\n%s", 130380646Sobrien errline); 130425443Sache } 130536817Sache if (eol) 130659003Shm q = NULL; 130736817Sache else { 130859003Shm q = parse = sob(++parse); /* Optional field */ 130959003Shm *(parse = son(parse)) = '\0'; 131036817Sache } 131136817Sache 131236817Sache working->sig = SIGHUP; 131336817Sache if (q && *q) { 131436817Sache if (isdigit(*q)) { 131559003Shm got_sig: 131636817Sache working->sig = atoi(q); 131736817Sache } else { 131859003Shm err_sig: 131980646Sobrien errx(1, 132080646Sobrien "illegal signal number in config file:\n%s", 132180646Sobrien errline); 132236817Sache } 132336817Sache if (working->sig < 1 || working->sig >= NSIG) 132436817Sache goto err_sig; 132536817Sache } 1326111768Sgad 1327111768Sgad /* 1328111768Sgad * Finish figuring out what pid-file to use (if any) in 1329111768Sgad * later processing if this logfile needs to be rotated. 1330111768Sgad */ 1331111768Sgad if ((working->flags & CE_NOSIGNAL) == CE_NOSIGNAL) { 1332111768Sgad /* 1333111768Sgad * This config-entry specified 'n' for nosignal, 1334111768Sgad * see if it also specified an explicit pid_file. 1335111768Sgad * This would be a pretty pointless combination. 1336111768Sgad */ 1337111768Sgad if (working->pid_file != NULL) { 1338111768Sgad warnx("Ignoring '%s' because flag 'n' was specified in line:\n%s", 1339111768Sgad working->pid_file, errline); 1340111768Sgad free(working->pid_file); 1341111768Sgad working->pid_file = NULL; 1342111768Sgad } 1343111768Sgad } else if (working->pid_file == NULL) { 1344111768Sgad /* 1345111768Sgad * This entry did not specify the 'n' flag, which 1346111768Sgad * means it should signal syslogd unless it had 1347112003Sgad * specified some other pid-file (and obviously the 1348112003Sgad * syslog pid-file will not be for a process-group). 1349112003Sgad * Also, we should only try to notify syslog if we 1350112003Sgad * are root. 1351111768Sgad */ 1352112003Sgad if (working->flags & CE_SIGNALGROUP) { 1353112003Sgad warnx("Ignoring flag 'U' in line:\n%s", 1354112003Sgad errline); 1355112003Sgad working->flags &= ~CE_SIGNALGROUP; 1356112003Sgad } 1357111768Sgad if (needroot) 1358111768Sgad working->pid_file = strdup(_PATH_SYSLOGPID); 1359111768Sgad } 1360111768Sgad 1361112020Sgad /* 1362112020Sgad * Add this entry to the appropriate list of entries, unless 1363112020Sgad * it was some kind of special entry (eg: <default>). 1364112020Sgad */ 1365112020Sgad if (special) { 1366112020Sgad ; /* Do not add to any list */ 1367112020Sgad } else if (working->flags & CE_GLOB) { 1368208648Sgordon STAILQ_INSERT_TAIL(glob_p, working, cf_nextp); 1369112020Sgad } else { 1370208648Sgordon STAILQ_INSERT_TAIL(work_p, working, cf_nextp); 1371112020Sgad } 1372130165Sgad } 1373130165Sgad if (errline != NULL) 137459003Shm free(errline); 137513244Sgraichen} 137613244Sgraichen 137759003Shmstatic char * 137859004Shmmissing_field(char *p, char *errline) 137913244Sgraichen{ 138080646Sobrien 138159003Shm if (!p || !*p) 138259003Shm errx(1, "missing field in config file:\n%s", errline); 138359003Shm return (p); 138413244Sgraichen} 138513244Sgraichen 1386208649Sgordon/* 1387210372Ssimon * In our sort we return it in the reverse of what qsort normally 1388210372Ssimon * would do, as we want the newest files first. If we have two 1389210372Ssimon * entries with the same time we don't really care about order. 1390210372Ssimon * 1391210372Ssimon * Support function for qsort() in delete_oldest_timelog(). 1392210372Ssimon */ 1393210372Ssimonstatic int 1394210372Ssimonoldlog_entry_compare(const void *a, const void *b) 1395210372Ssimon{ 1396210372Ssimon const struct oldlog_entry *ola = a, *olb = b; 1397210372Ssimon 1398210372Ssimon if (ola->t > olb->t) 1399210372Ssimon return (-1); 1400210372Ssimon else if (ola->t < olb->t) 1401210372Ssimon return (1); 1402210372Ssimon else 1403210372Ssimon return (0); 1404210372Ssimon} 1405210372Ssimon 1406210372Ssimon/* 1407210372Ssimon * Delete the oldest logfiles, when using time based filenames. 1408210372Ssimon */ 1409210372Ssimonstatic void 1410210372Ssimondelete_oldest_timelog(const struct conf_entry *ent, const char *archive_dir) 1411210372Ssimon{ 1412210372Ssimon char *logfname, *s, *dir, errbuf[80]; 1413210372Ssimon int logcnt, max_logcnt, dirfd, i; 1414210372Ssimon struct oldlog_entry *oldlogs; 1415210372Ssimon size_t logfname_len; 1416210372Ssimon struct dirent *dp; 1417210372Ssimon const char *cdir; 1418210372Ssimon struct tm tm; 1419210372Ssimon DIR *dirp; 1420210372Ssimon 1421210372Ssimon oldlogs = malloc(MAX_OLDLOGS * sizeof(struct oldlog_entry)); 1422210372Ssimon max_logcnt = MAX_OLDLOGS; 1423210372Ssimon logcnt = 0; 1424210372Ssimon 1425210372Ssimon if (archive_dir != NULL && archive_dir[0] != '\0') 1426210372Ssimon cdir = archive_dir; 1427210372Ssimon else 1428210372Ssimon if ((cdir = dirname(ent->log)) == NULL) 1429210372Ssimon err(1, "dirname()"); 1430210372Ssimon if ((dir = strdup(cdir)) == NULL) 1431210372Ssimon err(1, "strdup()"); 1432210372Ssimon 1433210372Ssimon if ((s = basename(ent->log)) == NULL) 1434210372Ssimon err(1, "basename()"); 1435210372Ssimon if ((logfname = strdup(s)) == NULL) 1436210372Ssimon err(1, "strdup()"); 1437210372Ssimon logfname_len = strlen(logfname); 1438210372Ssimon if (strcmp(logfname, "/") == 0) 1439210372Ssimon errx(1, "Invalid log filename - became '/'"); 1440210372Ssimon 1441210372Ssimon if (verbose > 2) 1442210372Ssimon printf("Searching for old logs in %s\n", dir); 1443210372Ssimon 1444210372Ssimon /* First we create a 'list' of all archived logfiles */ 1445210372Ssimon if ((dirp = opendir(dir)) == NULL) 1446210372Ssimon err(1, "Cannot open log directory '%s'", dir); 1447210372Ssimon dirfd = dirfd(dirp); 1448210372Ssimon while ((dp = readdir(dirp)) != NULL) { 1449210372Ssimon if (dp->d_type != DT_REG) 1450210372Ssimon continue; 1451210372Ssimon 1452210372Ssimon /* Ignore everything but files with our logfile prefix */ 1453210372Ssimon if (strncmp(dp->d_name, logfname, logfname_len) != 0) 1454210372Ssimon continue; 1455210372Ssimon /* Ignore the actual non-rotated logfile */ 1456210372Ssimon if (dp->d_namlen == logfname_len) 1457210372Ssimon continue; 1458210372Ssimon /* 1459210372Ssimon * Make sure we created have found a logfile, so the 1460210372Ssimon * postfix is valid, IE format is: '.<time>(.[bg]z)?'. 1461210372Ssimon */ 1462210372Ssimon if (dp->d_name[logfname_len] != '.') { 1463210372Ssimon if (verbose) 1464210372Ssimon printf("Ignoring %s which has unexpected " 1465210372Ssimon "extension '%s'\n", dp->d_name, 1466210372Ssimon &dp->d_name[logfname_len]); 1467210372Ssimon continue; 1468210372Ssimon } 1469210372Ssimon if ((s = strptime(&dp->d_name[logfname_len + 1], 1470210372Ssimon timefnamefmt, &tm)) == NULL) { 1471210372Ssimon /* 1472210372Ssimon * We could special case "old" sequentially 1473210372Ssimon * named logfiles here, but we do not as that 1474210372Ssimon * would require special handling to decide 1475210372Ssimon * which one was the oldest compared to "new" 1476210372Ssimon * time based logfiles. 1477210372Ssimon */ 1478210372Ssimon if (verbose) 1479210372Ssimon printf("Ignoring %s which does not " 1480210372Ssimon "match time format\n", dp->d_name); 1481210372Ssimon continue; 1482210372Ssimon } 1483210372Ssimon if (*s != '\0' && !(strcmp(s, BZCOMPRESS_POSTFIX) == 0 || 1484210372Ssimon strcmp(s, COMPRESS_POSTFIX) == 0)) { 1485210372Ssimon if (verbose) 1486210372Ssimon printf("Ignoring %s which has unexpected " 1487210372Ssimon "extension '%s'\n", dp->d_name, s); 1488210372Ssimon continue; 1489210372Ssimon } 1490210372Ssimon 1491210372Ssimon /* 1492210372Ssimon * We should now have old an old rotated logfile, so 1493210372Ssimon * add it to the 'list'. 1494210372Ssimon */ 1495210372Ssimon if ((oldlogs[logcnt].t = timegm(&tm)) == -1) 1496210372Ssimon err(1, "Could not convert time string to time value"); 1497210372Ssimon if ((oldlogs[logcnt].fname = strdup(dp->d_name)) == NULL) 1498210372Ssimon err(1, "strdup()"); 1499210372Ssimon logcnt++; 1500210372Ssimon 1501210372Ssimon /* 1502210372Ssimon * It is very unlikely we ever run out of space in the 1503210372Ssimon * logfile array from the default size, but lets 1504210372Ssimon * handle it anyway... 1505210372Ssimon */ 1506210372Ssimon if (logcnt >= max_logcnt) { 1507210372Ssimon max_logcnt *= 4; 1508210372Ssimon /* Detect integer overflow */ 1509210372Ssimon if (max_logcnt < logcnt) 1510210372Ssimon errx(1, "Too many old logfiles found"); 1511210372Ssimon oldlogs = realloc(oldlogs, 1512210372Ssimon max_logcnt * sizeof(struct oldlog_entry)); 1513210372Ssimon if (oldlogs == NULL) 1514210372Ssimon err(1, "realloc()"); 1515210372Ssimon } 1516210372Ssimon } 1517210372Ssimon 1518210372Ssimon /* Second, if needed we delete oldest archived logfiles */ 1519210372Ssimon if (logcnt > 0 && logcnt >= ent->numlogs && ent->numlogs > 1) { 1520210372Ssimon oldlogs = realloc(oldlogs, logcnt * 1521210372Ssimon sizeof(struct oldlog_entry)); 1522210372Ssimon if (oldlogs == NULL) 1523210372Ssimon err(1, "realloc()"); 1524210372Ssimon 1525210372Ssimon /* 1526210372Ssimon * We now sort the logs in the order of newest to 1527210372Ssimon * oldest. That way we can simply skip over the 1528210372Ssimon * number of records we want to keep. 1529210372Ssimon */ 1530210372Ssimon qsort(oldlogs, logcnt, sizeof(struct oldlog_entry), 1531210372Ssimon oldlog_entry_compare); 1532210372Ssimon for (i = ent->numlogs - 1; i < logcnt; i++) { 1533210372Ssimon if (noaction) 1534210372Ssimon printf("\trm -f %s/%s\n", dir, 1535210372Ssimon oldlogs[i].fname); 1536210372Ssimon else if (unlinkat(dirfd, oldlogs[i].fname, 0) != 0) { 1537210372Ssimon snprintf(errbuf, sizeof(errbuf), 1538210372Ssimon "Could not delet old logfile '%s'", 1539210372Ssimon oldlogs[i].fname); 1540210372Ssimon perror(errbuf); 1541210372Ssimon } 1542210372Ssimon } 1543210372Ssimon } else if (verbose > 1) 1544210372Ssimon printf("No old logs to delete for logfile %s\n", ent->log); 1545210372Ssimon 1546210372Ssimon /* Third, cleanup */ 1547210372Ssimon closedir(dirp); 1548210372Ssimon for (i = 0; i < logcnt; i++) { 1549210372Ssimon assert(oldlogs[i].fname != NULL); 1550210372Ssimon free(oldlogs[i].fname); 1551210372Ssimon } 1552210372Ssimon free(oldlogs); 1553210372Ssimon free(logfname); 1554210372Ssimon free(dir); 1555210372Ssimon} 1556210372Ssimon 1557210372Ssimon/* 1558208649Sgordon * Only add to the queue if the file hasn't already been added. This is 1559208649Sgordon * done to prevent circular include loops. 1560208649Sgordon */ 1561208649Sgordonstatic void 1562208649Sgordonadd_to_queue(const char *fname, struct ilist *inclist) 1563208649Sgordon{ 1564208649Sgordon struct include_entry *inc; 1565208649Sgordon 1566208649Sgordon STAILQ_FOREACH(inc, inclist, inc_nextp) { 1567208649Sgordon if (strcmp(fname, inc->file) == 0) { 1568208649Sgordon warnx("duplicate include detected: %s", fname); 1569208649Sgordon return; 1570208649Sgordon } 1571208649Sgordon } 1572208649Sgordon 1573208649Sgordon inc = malloc(sizeof(struct include_entry)); 1574208649Sgordon if (inc == NULL) 1575208649Sgordon err(1, "malloc of inc"); 1576208649Sgordon inc->file = strdup(fname); 1577208649Sgordon 1578208649Sgordon if (verbose > 2) 1579208649Sgordon printf("\t+ Adding %s to the processing queue.\n", fname); 1580208649Sgordon 1581208649Sgordon STAILQ_INSERT_TAIL(inclist, inc, inc_nextp); 1582208649Sgordon} 1583208649Sgordon 1584130165Sgadstatic fk_entry 1585130165Sgaddo_rotate(const struct conf_entry *ent) 158613244Sgraichen{ 158771299Sjedgar char dirpart[MAXPATHLEN], namepart[MAXPATHLEN]; 158871299Sjedgar char file1[MAXPATHLEN], file2[MAXPATHLEN]; 158971299Sjedgar char zfile1[MAXPATHLEN], zfile2[MAXPATHLEN]; 159080638Sobrien char jfile1[MAXPATHLEN]; 1591210372Ssimon char datetimestr[30]; 1592159968Sgad int flags, numlogs_c; 1593130165Sgad fk_entry free_or_keep; 1594159968Sgad struct sigwork_entry *swork; 159559003Shm struct stat st; 1596210372Ssimon struct tm tm; 1597210372Ssimon time_t now; 159813244Sgraichen 1599119927Sgad flags = ent->flags; 1600130165Sgad free_or_keep = FREE_ENT; 1601119927Sgad 160259004Shm if (archtodir) { 160359004Shm char *p; 160413244Sgraichen 160559004Shm /* build complete name of archive directory into dirpart */ 160659004Shm if (*archdirname == '/') { /* absolute */ 160771299Sjedgar strlcpy(dirpart, archdirname, sizeof(dirpart)); 160859004Shm } else { /* relative */ 160959004Shm /* get directory part of logfile */ 1610119927Sgad strlcpy(dirpart, ent->log, sizeof(dirpart)); 161159004Shm if ((p = rindex(dirpart, '/')) == NULL) 161259004Shm dirpart[0] = '\0'; 161359004Shm else 161459004Shm *(p + 1) = '\0'; 161571299Sjedgar strlcat(dirpart, archdirname, sizeof(dirpart)); 161659004Shm } 161759004Shm 161859004Shm /* check if archive directory exists, if not, create it */ 161959004Shm if (lstat(dirpart, &st)) 1620114137Sgad createdir(ent, dirpart); 162159004Shm 162259004Shm /* get filename part of logfile */ 1623119927Sgad if ((p = rindex(ent->log, '/')) == NULL) 1624119927Sgad strlcpy(namepart, ent->log, sizeof(namepart)); 162559004Shm else 162671299Sjedgar strlcpy(namepart, p + 1, sizeof(namepart)); 162759004Shm 162859004Shm /* name of oldest log */ 162980646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s.%d", dirpart, 1630119927Sgad namepart, ent->numlogs); 163159004Shm } else { 1632210372Ssimon /* 1633210372Ssimon * Tell delete_oldest_timelog() we are not using an 1634210372Ssimon * archive dir. 1635210372Ssimon */ 1636210372Ssimon dirpart[0] = '\0'; 1637210372Ssimon 163859004Shm /* name of oldest log */ 1639119927Sgad (void) snprintf(file1, sizeof(file1), "%s.%d", ent->log, 1640119927Sgad ent->numlogs); 1641210372Ssimon } 1642210372Ssimon 1643210372Ssimon /* Delete old logs */ 1644210372Ssimon if (timefnamefmt != NULL) 1645210372Ssimon delete_oldest_timelog(ent, dirpart); 1646210372Ssimon else { 1647210372Ssimon /* name of oldest log */ 164871299Sjedgar (void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1, 164971299Sjedgar COMPRESS_POSTFIX); 165080638Sobrien snprintf(jfile1, sizeof(jfile1), "%s%s", file1, 165180638Sobrien BZCOMPRESS_POSTFIX); 165259004Shm 1653210372Ssimon if (noaction) { 1654210372Ssimon printf("\trm -f %s\n", file1); 1655210372Ssimon printf("\trm -f %s\n", zfile1); 1656210372Ssimon printf("\trm -f %s\n", jfile1); 1657210372Ssimon } else { 1658210372Ssimon (void) unlink(file1); 1659210372Ssimon (void) unlink(zfile1); 1660210372Ssimon (void) unlink(jfile1); 1661210372Ssimon } 166259003Shm } 166313244Sgraichen 1664210372Ssimon if (timefnamefmt != NULL) { 1665210372Ssimon /* If time functions fails we can't really do any sensible */ 1666210372Ssimon if (time(&now) == (time_t)-1 || 1667210372Ssimon localtime_r(&now, &tm) == NULL) 1668210372Ssimon bzero(&tm, sizeof(tm)); 1669210372Ssimon 1670210372Ssimon strftime(datetimestr, sizeof(datetimestr), timefnamefmt, &tm); 1671210372Ssimon if (archtodir) 1672210372Ssimon (void) snprintf(file1, sizeof(file1), "%s/%s.%s", 1673210372Ssimon dirpart, namepart, datetimestr); 1674210372Ssimon else 1675210372Ssimon (void) snprintf(file1, sizeof(file1), "%s.%s", 1676210372Ssimon ent->log, datetimestr); 1677210372Ssimon 1678210372Ssimon /* Don't run the code to move down logs */ 1679210372Ssimon numlogs_c = 0; 1680210372Ssimon } else 1681210372Ssimon numlogs_c = ent->numlogs; /* copy for countdown */ 1682210372Ssimon 168359003Shm /* Move down log files */ 1684119927Sgad while (numlogs_c--) { 168559004Shm 168671299Sjedgar (void) strlcpy(file2, file1, sizeof(file2)); 168759004Shm 168859004Shm if (archtodir) 168980646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s.%d", 1690119927Sgad dirpart, namepart, numlogs_c); 169159004Shm else 1692119927Sgad (void) snprintf(file1, sizeof(file1), "%s.%d", 1693119927Sgad ent->log, numlogs_c); 169459004Shm 169571299Sjedgar (void) strlcpy(zfile1, file1, sizeof(zfile1)); 169671299Sjedgar (void) strlcpy(zfile2, file2, sizeof(zfile2)); 169759003Shm if (lstat(file1, &st)) { 169880646Sobrien (void) strlcat(zfile1, COMPRESS_POSTFIX, 169980646Sobrien sizeof(zfile1)); 170080646Sobrien (void) strlcat(zfile2, COMPRESS_POSTFIX, 170180646Sobrien sizeof(zfile2)); 170280638Sobrien if (lstat(zfile1, &st)) { 170380638Sobrien strlcpy(zfile1, file1, sizeof(zfile1)); 170480638Sobrien strlcpy(zfile2, file2, sizeof(zfile2)); 170580638Sobrien strlcat(zfile1, BZCOMPRESS_POSTFIX, 170680638Sobrien sizeof(zfile1)); 170780638Sobrien strlcat(zfile2, BZCOMPRESS_POSTFIX, 170880638Sobrien sizeof(zfile2)); 170980638Sobrien if (lstat(zfile1, &st)) 171080638Sobrien continue; 171180638Sobrien } 171259003Shm } 1713130165Sgad if (noaction) 1714111967Sgad printf("\tmv %s %s\n", zfile1, zfile2); 1715130165Sgad else { 1716130165Sgad /* XXX - Ought to be checking for failure! */ 1717130165Sgad (void)rename(zfile1, zfile2); 171859003Shm } 1719130165Sgad change_attrs(zfile2, ent); 172059003Shm } 172113244Sgraichen 1722130038Sgad if (ent->numlogs > 0) { 1723129974Sgad if (noaction) { 1724130038Sgad /* 1725130038Sgad * Note that savelog() may succeed with using link() 1726130038Sgad * for the archtodir case, but there is no good way 1727130038Sgad * of knowing if it will when doing "noaction", so 1728130038Sgad * here we claim that it will have to do a copy... 1729130038Sgad */ 1730130038Sgad if (archtodir) 1731130038Sgad printf("\tcp %s %s\n", ent->log, file1); 1732130038Sgad else 1733130038Sgad printf("\tln %s %s\n", ent->log, file1); 1734130165Sgad } else { 1735130038Sgad if (!(flags & CE_BINARY)) { 1736130038Sgad /* Report the trimming to the old log */ 1737130038Sgad log_trim(ent->log, ent); 1738130038Sgad } 1739130038Sgad savelog(ent->log, file1); 174059004Shm } 1741130165Sgad change_attrs(file1, ent); 174218075Sjkh } 174318075Sjkh 1744130038Sgad /* Create the new log file and move it into place */ 1745130038Sgad if (noaction) 1746111781Sgad printf("Start new log...\n"); 1747130038Sgad createlog(ent); 174825443Sache 1749111966Sgad /* 1750130167Sgad * Save all signalling and file-compression to be done after log 1751130167Sgad * files from all entries have been rotated. This way any one 1752130167Sgad * process will not be sent the same signal multiple times when 1753130167Sgad * multiple log files had to be rotated. 1754130167Sgad */ 1755159968Sgad swork = NULL; 1756159968Sgad if (ent->pid_file != NULL) 1757159968Sgad swork = save_sigwork(ent); 1758159968Sgad if (ent->numlogs > 0 && (flags & (CE_COMPACT | CE_BZCOMPACT))) { 1759159968Sgad /* 1760159968Sgad * The zipwork_entry will include a pointer to this 1761159968Sgad * conf_entry, so the conf_entry should not be freed. 1762159968Sgad */ 1763159968Sgad free_or_keep = KEEP_ENT; 1764159968Sgad save_zipwork(ent, swork, ent->fsize, file1); 1765130167Sgad } 1766130167Sgad 1767130165Sgad return (free_or_keep); 176813244Sgraichen} 176913244Sgraichen 1770130167Sgadstatic void 1771130167Sgaddo_sigwork(struct sigwork_entry *swork) 1772130167Sgad{ 1773130204Sgad struct sigwork_entry *nextsig; 1774130204Sgad int kres, secs; 1775130167Sgad 1776130167Sgad if (!(swork->sw_pidok) || swork->sw_pid == 0) 1777130167Sgad return; /* no work to do... */ 1778130167Sgad 1779130167Sgad /* 1780130167Sgad * If nosignal (-s) was specified, then do not signal any process. 1781130167Sgad * Note that a nosignal request triggers a warning message if the 1782130167Sgad * rotated logfile needs to be compressed, *unless* -R was also 1783130167Sgad * specified. We assume that an `-sR' request came from a process 1784130167Sgad * which writes to the logfile, and as such, we assume that process 1785130167Sgad * has already made sure the logfile is not presently in use. This 1786130167Sgad * just sets swork->sw_pidok to a special value, and do_zipwork 1787130167Sgad * will print any necessary warning(s). 1788130167Sgad */ 1789130167Sgad if (nosignal) { 1790130167Sgad if (!rotatereq) 1791130167Sgad swork->sw_pidok = -1; 1792130167Sgad return; 1793130167Sgad } 1794130167Sgad 1795130204Sgad /* 1796130204Sgad * Compute the pause between consecutive signals. Use a longer 1797130204Sgad * sleep time if we will be sending two signals to the same 1798130204Sgad * deamon or process-group. 1799130204Sgad */ 1800130204Sgad secs = 0; 1801130204Sgad nextsig = SLIST_NEXT(swork, sw_nextp); 1802130204Sgad if (nextsig != NULL) { 1803130204Sgad if (swork->sw_pid == nextsig->sw_pid) 1804130204Sgad secs = 10; 1805130204Sgad else 1806130204Sgad secs = 1; 1807130204Sgad } 1808130204Sgad 1809130167Sgad if (noaction) { 1810130204Sgad printf("\tkill -%d %d \t\t# %s\n", swork->sw_signum, 1811130204Sgad (int)swork->sw_pid, swork->sw_fname); 1812130204Sgad if (secs > 0) 1813130204Sgad printf("\tsleep %d\n", secs); 1814130167Sgad return; 1815130167Sgad } 1816130167Sgad 1817130167Sgad kres = kill(swork->sw_pid, swork->sw_signum); 1818130167Sgad if (kres != 0) { 1819130167Sgad /* 1820130167Sgad * Assume that "no such process" (ESRCH) is something 1821130167Sgad * to warn about, but is not an error. Presumably the 1822130167Sgad * process which writes to the rotated log file(s) is 1823130167Sgad * gone, in which case we should have no problem with 1824130167Sgad * compressing the rotated log file(s). 1825130167Sgad */ 1826130167Sgad if (errno != ESRCH) 1827130167Sgad swork->sw_pidok = 0; 1828130167Sgad warn("can't notify %s, pid %d", swork->sw_pidtype, 1829130167Sgad (int)swork->sw_pid); 1830130167Sgad } else { 1831130204Sgad if (verbose) 1832130204Sgad printf("Notified %s pid %d = %s\n", swork->sw_pidtype, 1833130204Sgad (int)swork->sw_pid, swork->sw_fname); 1834130204Sgad if (secs > 0) { 1835130204Sgad if (verbose) 1836130204Sgad printf("Pause %d second(s) between signals\n", 1837130204Sgad secs); 1838130204Sgad sleep(secs); 1839130167Sgad } 1840130167Sgad } 1841130167Sgad} 1842130167Sgad 1843130167Sgadstatic void 1844130167Sgaddo_zipwork(struct zipwork_entry *zwork) 1845130167Sgad{ 1846130167Sgad const char *pgm_name, *pgm_path; 1847154566Sgad int errsav, fcount, zstatus; 1848130167Sgad pid_t pidzip, wpid; 1849130167Sgad char zresult[MAXPATHLEN]; 1850130167Sgad 1851130167Sgad pgm_path = NULL; 1852130167Sgad strlcpy(zresult, zwork->zw_fname, sizeof(zresult)); 1853130167Sgad if (zwork != NULL && zwork->zw_conf != NULL) { 1854130167Sgad if (zwork->zw_conf->flags & CE_COMPACT) { 1855130167Sgad pgm_path = _PATH_GZIP; 1856130167Sgad strlcat(zresult, COMPRESS_POSTFIX, sizeof(zresult)); 1857130167Sgad } else if (zwork->zw_conf->flags & CE_BZCOMPACT) { 1858130167Sgad pgm_path = _PATH_BZIP2; 1859130167Sgad strlcat(zresult, BZCOMPRESS_POSTFIX, sizeof(zresult)); 1860130167Sgad } 1861130167Sgad } 1862130167Sgad if (pgm_path == NULL) { 1863130167Sgad warnx("invalid entry for %s in do_zipwork", zwork->zw_fname); 1864130167Sgad return; 1865130167Sgad } 1866154566Sgad pgm_name = strrchr(pgm_path, '/'); 1867154566Sgad if (pgm_name == NULL) 1868154566Sgad pgm_name = pgm_path; 1869154566Sgad else 1870154566Sgad pgm_name++; 1871130167Sgad 1872130167Sgad if (zwork->zw_swork != NULL && zwork->zw_swork->sw_pidok <= 0) { 1873130167Sgad warnx( 1874130167Sgad "log %s not compressed because daemon(s) not notified", 1875130167Sgad zwork->zw_fname); 1876130167Sgad change_attrs(zwork->zw_fname, zwork->zw_conf); 1877130167Sgad return; 1878130167Sgad } 1879130167Sgad 1880130167Sgad if (noaction) { 1881130167Sgad printf("\t%s %s\n", pgm_name, zwork->zw_fname); 1882130167Sgad change_attrs(zresult, zwork->zw_conf); 1883130167Sgad return; 1884130167Sgad } 1885130167Sgad 1886154566Sgad fcount = 1; 1887130167Sgad pidzip = fork(); 1888154566Sgad while (pidzip < 0) { 1889154566Sgad /* 1890154566Sgad * The fork failed. If the failure was due to a temporary 1891154566Sgad * problem, then wait a short time and try it again. 1892154566Sgad */ 1893154566Sgad errsav = errno; 1894154566Sgad warn("fork() for `%s %s'", pgm_name, zwork->zw_fname); 1895154566Sgad if (errsav != EAGAIN || fcount > 5) 1896154566Sgad errx(1, "Exiting..."); 1897154566Sgad sleep(fcount * 12); 1898154566Sgad fcount++; 1899154566Sgad pidzip = fork(); 1900154566Sgad } 1901154566Sgad if (!pidzip) { 1902130167Sgad /* The child process executes the compression command */ 1903130167Sgad execl(pgm_path, pgm_path, "-f", zwork->zw_fname, (char *)0); 1904154566Sgad err(1, "execl(`%s -f %s')", pgm_path, zwork->zw_fname); 1905130167Sgad } 1906130167Sgad 1907130167Sgad wpid = waitpid(pidzip, &zstatus, 0); 1908130167Sgad if (wpid == -1) { 1909154566Sgad /* XXX - should this be a fatal error? */ 1910130167Sgad warn("%s: waitpid(%d)", pgm_path, pidzip); 1911130167Sgad return; 1912130167Sgad } 1913130167Sgad if (!WIFEXITED(zstatus)) { 1914154566Sgad warnx("`%s -f %s' did not terminate normally", pgm_name, 1915154566Sgad zwork->zw_fname); 1916130167Sgad return; 1917130167Sgad } 1918130167Sgad if (WEXITSTATUS(zstatus)) { 1919154566Sgad warnx("`%s -f %s' terminated with a non-zero status (%d)", 1920154566Sgad pgm_name, zwork->zw_fname, WEXITSTATUS(zstatus)); 1921130167Sgad return; 1922130167Sgad } 1923130167Sgad 1924130167Sgad /* Compression was successful, set file attributes on the result. */ 1925130167Sgad change_attrs(zresult, zwork->zw_conf); 1926130167Sgad} 1927130167Sgad 1928130167Sgad/* 1929130167Sgad * Save information on any process we need to signal. Any single 1930130167Sgad * process may need to be sent different signal-values for different 1931130167Sgad * log files, but usually a single signal-value will cause the process 1932130167Sgad * to close and re-open all of it's log files. 1933130167Sgad */ 1934130167Sgadstatic struct sigwork_entry * 1935130167Sgadsave_sigwork(const struct conf_entry *ent) 1936130167Sgad{ 1937130167Sgad struct sigwork_entry *sprev, *stmp; 1938130167Sgad int ndiff; 1939130167Sgad size_t tmpsiz; 1940130167Sgad 1941130167Sgad sprev = NULL; 1942130167Sgad ndiff = 1; 1943130167Sgad SLIST_FOREACH(stmp, &swhead, sw_nextp) { 1944130167Sgad ndiff = strcmp(ent->pid_file, stmp->sw_fname); 1945130167Sgad if (ndiff > 0) 1946130167Sgad break; 1947130167Sgad if (ndiff == 0) { 1948130167Sgad if (ent->sig == stmp->sw_signum) 1949130167Sgad break; 1950130167Sgad if (ent->sig > stmp->sw_signum) { 1951130167Sgad ndiff = 1; 1952130167Sgad break; 1953130167Sgad } 1954130167Sgad } 1955130167Sgad sprev = stmp; 1956130167Sgad } 1957130167Sgad if (stmp != NULL && ndiff == 0) 1958130167Sgad return (stmp); 1959130167Sgad 1960130167Sgad tmpsiz = sizeof(struct sigwork_entry) + strlen(ent->pid_file) + 1; 1961130167Sgad stmp = malloc(tmpsiz); 1962130167Sgad set_swpid(stmp, ent); 1963130167Sgad stmp->sw_signum = ent->sig; 1964130167Sgad strcpy(stmp->sw_fname, ent->pid_file); 1965130167Sgad if (sprev == NULL) 1966130167Sgad SLIST_INSERT_HEAD(&swhead, stmp, sw_nextp); 1967130167Sgad else 1968130167Sgad SLIST_INSERT_AFTER(sprev, stmp, sw_nextp); 1969130167Sgad return (stmp); 1970130167Sgad} 1971130167Sgad 1972130167Sgad/* 1973130167Sgad * Save information on any file we need to compress. We may see the same 1974130167Sgad * file multiple times, so check the full list to avoid duplicates. The 1975130167Sgad * list itself is sorted smallest-to-largest, because that's the order we 1976130167Sgad * want to compress the files. If the partition is very low on disk space, 1977130167Sgad * then the smallest files are the most likely to compress, and compressing 1978130167Sgad * them first will free up more space for the larger files. 1979130167Sgad */ 1980130167Sgadstatic struct zipwork_entry * 1981130167Sgadsave_zipwork(const struct conf_entry *ent, const struct sigwork_entry *swork, 1982130167Sgad int zsize, const char *zipfname) 1983130167Sgad{ 1984130167Sgad struct zipwork_entry *zprev, *ztmp; 1985130167Sgad int ndiff; 1986130167Sgad size_t tmpsiz; 1987130167Sgad 1988130167Sgad /* Compute the size if the caller did not know it. */ 1989130167Sgad if (zsize < 0) 1990130167Sgad zsize = sizefile(zipfname); 1991130167Sgad 1992130167Sgad zprev = NULL; 1993130167Sgad ndiff = 1; 1994130167Sgad SLIST_FOREACH(ztmp, &zwhead, zw_nextp) { 1995130707Sgad ndiff = strcmp(zipfname, ztmp->zw_fname); 1996130167Sgad if (ndiff == 0) 1997130167Sgad break; 1998130167Sgad if (zsize > ztmp->zw_fsize) 1999130167Sgad zprev = ztmp; 2000130167Sgad } 2001130167Sgad if (ztmp != NULL && ndiff == 0) 2002130167Sgad return (ztmp); 2003130167Sgad 2004130167Sgad tmpsiz = sizeof(struct zipwork_entry) + strlen(zipfname) + 1; 2005130167Sgad ztmp = malloc(tmpsiz); 2006130167Sgad ztmp->zw_conf = ent; 2007130167Sgad ztmp->zw_swork = swork; 2008130167Sgad ztmp->zw_fsize = zsize; 2009130167Sgad strcpy(ztmp->zw_fname, zipfname); 2010130167Sgad if (zprev == NULL) 2011130167Sgad SLIST_INSERT_HEAD(&zwhead, ztmp, zw_nextp); 2012130167Sgad else 2013130167Sgad SLIST_INSERT_AFTER(zprev, ztmp, zw_nextp); 2014130167Sgad return (ztmp); 2015130167Sgad} 2016130167Sgad 2017130167Sgad/* Send a signal to the pid specified by pidfile */ 2018130167Sgadstatic void 2019130167Sgadset_swpid(struct sigwork_entry *swork, const struct conf_entry *ent) 2020130167Sgad{ 2021130167Sgad FILE *f; 2022130167Sgad long minok, maxok, rval; 2023130167Sgad char *endp, *linep, line[BUFSIZ]; 2024130167Sgad 2025130167Sgad minok = MIN_PID; 2026130167Sgad maxok = MAX_PID; 2027130167Sgad swork->sw_pidok = 0; 2028130167Sgad swork->sw_pid = 0; 2029130167Sgad swork->sw_pidtype = "daemon"; 2030130167Sgad if (ent->flags & CE_SIGNALGROUP) { 2031130167Sgad /* 2032130167Sgad * If we are expected to signal a process-group when 2033130167Sgad * rotating this logfile, then the value read in should 2034130167Sgad * be the negative of a valid process ID. 2035130167Sgad */ 2036130167Sgad minok = -MAX_PID; 2037130167Sgad maxok = -MIN_PID; 2038130167Sgad swork->sw_pidtype = "process-group"; 2039130167Sgad } 2040130167Sgad 2041130167Sgad f = fopen(ent->pid_file, "r"); 2042130167Sgad if (f == NULL) { 2043202668Sdelphij if (errno == ENOENT && enforcepid == 0) { 2044200806Sdelphij /* 2045200806Sdelphij * Warn if the PID file doesn't exist, but do 2046200806Sdelphij * not consider it an error. Most likely it 2047200806Sdelphij * means the process has been terminated, 2048200806Sdelphij * so it should be safe to rotate any log 2049200806Sdelphij * files that the process would have been using. 2050200806Sdelphij */ 2051200806Sdelphij swork->sw_pidok = 1; 2052200806Sdelphij warnx("pid file doesn't exist: %s", ent->pid_file); 2053200806Sdelphij } else 2054200806Sdelphij warn("can't open pid file: %s", ent->pid_file); 2055130167Sgad return; 2056130167Sgad } 2057130167Sgad 2058130167Sgad if (fgets(line, BUFSIZ, f) == NULL) { 2059130167Sgad /* 2060130167Sgad * Warn if the PID file is empty, but do not consider 2061130167Sgad * it an error. Most likely it means the process has 2062130167Sgad * has terminated, so it should be safe to rotate any 2063130167Sgad * log files that the process would have been using. 2064130167Sgad */ 2065202668Sdelphij if (feof(f) && enforcepid == 0) { 2066130167Sgad swork->sw_pidok = 1; 2067130167Sgad warnx("pid file is empty: %s", ent->pid_file); 2068130167Sgad } else 2069130167Sgad warn("can't read from pid file: %s", ent->pid_file); 2070130167Sgad (void)fclose(f); 2071130167Sgad return; 2072130167Sgad } 2073130167Sgad (void)fclose(f); 2074130167Sgad 2075130167Sgad errno = 0; 2076130167Sgad linep = line; 2077130167Sgad while (*linep == ' ') 2078130167Sgad linep++; 2079130167Sgad rval = strtol(linep, &endp, 10); 2080130167Sgad if (*endp != '\0' && !isspacech(*endp)) { 2081130167Sgad warnx("pid file does not start with a valid number: %s", 2082130167Sgad ent->pid_file); 2083130167Sgad } else if (rval < minok || rval > maxok) { 2084130167Sgad warnx("bad value '%ld' for process number in %s", 2085130167Sgad rval, ent->pid_file); 2086130167Sgad if (verbose) 2087130167Sgad warnx("\t(expecting value between %ld and %ld)", 2088130167Sgad minok, maxok); 2089130167Sgad } else { 2090130167Sgad swork->sw_pidok = 1; 2091130167Sgad swork->sw_pid = rval; 2092130167Sgad } 2093130167Sgad 2094130167Sgad return; 2095130167Sgad} 2096130167Sgad 209713244Sgraichen/* Log the fact that the logs were turned over */ 209859004Shmstatic int 2099119926Sgadlog_trim(const char *logname, const struct conf_entry *log_ent) 210013244Sgraichen{ 210159003Shm FILE *f; 2102111388Sgad const char *xtra; 210359003Shm 2104119926Sgad if ((f = fopen(logname, "a")) == NULL) 210559003Shm return (-1); 2106111388Sgad xtra = ""; 2107111768Sgad if (log_ent->def_cfg) 2108111388Sgad xtra = " using <default> rule"; 2109114137Sgad if (log_ent->firstcreate) 2110114137Sgad fprintf(f, "%s %s newsyslog[%d]: logfile first created%s\n", 2111114137Sgad daytime, hostname, (int) getpid(), xtra); 2112114137Sgad else if (log_ent->r_reason != NULL) 2113111772Sgad fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s%s\n", 2114111772Sgad daytime, hostname, (int) getpid(), log_ent->r_reason, xtra); 2115111772Sgad else 2116111772Sgad fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s\n", 2117111772Sgad daytime, hostname, (int) getpid(), xtra); 211859003Shm if (fclose(f) == EOF) 2119127858Scharnier err(1, "log_trim: fclose"); 212059003Shm return (0); 212113244Sgraichen} 212213244Sgraichen 212313244Sgraichen/* Return size in kilobytes of a file */ 212459004Shmstatic int 2125130165Sgadsizefile(const char *file) 212613244Sgraichen{ 212759003Shm struct stat sb; 212813244Sgraichen 212959003Shm if (stat(file, &sb) < 0) 213059003Shm return (-1); 213159003Shm return (kbytes(dbtob(sb.st_blocks))); 213213244Sgraichen} 213313244Sgraichen 213413244Sgraichen/* Return the age of old log file (file.0) */ 213559004Shmstatic int 213659004Shmage_old_log(char *file) 213713244Sgraichen{ 213859003Shm struct stat sb; 2139114764Sgad char *endp; 2140114764Sgad char tmp[MAXPATHLEN + sizeof(".0") + sizeof(COMPRESS_POSTFIX) + 2141114764Sgad sizeof(BZCOMPRESS_POSTFIX) + 1]; 214213244Sgraichen 214359004Shm if (archtodir) { 214459004Shm char *p; 214559004Shm 214659004Shm /* build name of archive directory into tmp */ 214759004Shm if (*archdirname == '/') { /* absolute */ 214871299Sjedgar strlcpy(tmp, archdirname, sizeof(tmp)); 214959004Shm } else { /* relative */ 215059004Shm /* get directory part of logfile */ 215171299Sjedgar strlcpy(tmp, file, sizeof(tmp)); 215259004Shm if ((p = rindex(tmp, '/')) == NULL) 215359004Shm tmp[0] = '\0'; 215459004Shm else 215559004Shm *(p + 1) = '\0'; 215671299Sjedgar strlcat(tmp, archdirname, sizeof(tmp)); 215759004Shm } 215859004Shm 215971299Sjedgar strlcat(tmp, "/", sizeof(tmp)); 216059004Shm 216159004Shm /* get filename part of logfile */ 216259004Shm if ((p = rindex(file, '/')) == NULL) 216371299Sjedgar strlcat(tmp, file, sizeof(tmp)); 216459004Shm else 216571299Sjedgar strlcat(tmp, p + 1, sizeof(tmp)); 216659004Shm } else { 216771299Sjedgar (void) strlcpy(tmp, file, sizeof(tmp)); 216859004Shm } 216959004Shm 2170114764Sgad strlcat(tmp, ".0", sizeof(tmp)); 2171114764Sgad if (stat(tmp, &sb) < 0) { 2172114764Sgad /* 2173114764Sgad * A plain '.0' file does not exist. Try again, first 2174114764Sgad * with the added suffix of '.gz', then with an added 2175114764Sgad * suffix of '.bz2' instead of '.gz'. 2176114764Sgad */ 2177114764Sgad endp = strchr(tmp, '\0'); 2178114764Sgad strlcat(tmp, COMPRESS_POSTFIX, sizeof(tmp)); 2179114764Sgad if (stat(tmp, &sb) < 0) { 2180114764Sgad *endp = '\0'; /* Remove .gz */ 2181114764Sgad strlcat(tmp, BZCOMPRESS_POSTFIX, sizeof(tmp)); 2182114764Sgad if (stat(tmp, &sb) < 0) 2183114764Sgad return (-1); 2184114764Sgad } 2185114764Sgad } 2186120361Sgad return ((int)(ptimeget_secs(timenow) - sb.st_mtime + 1800) / 3600); 218713244Sgraichen} 218813244Sgraichen 218913244Sgraichen/* Skip Over Blanks */ 2190111820Sgadstatic char * 219159004Shmsob(char *p) 219213244Sgraichen{ 219359003Shm while (p && *p && isspace(*p)) 219459003Shm p++; 219559003Shm return (p); 219613244Sgraichen} 219713244Sgraichen 219813244Sgraichen/* Skip Over Non-Blanks */ 2199111820Sgadstatic char * 220059004Shmson(char *p) 220113244Sgraichen{ 220259003Shm while (p && *p && !isspace(*p)) 220359003Shm p++; 220459003Shm return (p); 220513244Sgraichen} 220643071Swollman 2207119102Sgad/* Check if string is actually a number */ 2208119102Sgadstatic int 2209119102Sgadisnumberstr(const char *string) 2210119102Sgad{ 2211119102Sgad while (*string) { 2212119102Sgad if (!isdigitch(*string++)) 2213119102Sgad return (0); 2214119102Sgad } 2215119102Sgad return (1); 2216119102Sgad} 2217119102Sgad 2218208649Sgordon/* Check if string contains a glob */ 2219208649Sgordonstatic int 2220208649Sgordonisglobstr(const char *string) 2221208649Sgordon{ 2222208649Sgordon char chr; 2223208649Sgordon 2224208649Sgordon while ((chr = *string++)) { 2225208649Sgordon if (chr == '*' || chr == '?' || chr == '[') 2226208649Sgordon return (1); 2227208649Sgordon } 2228208649Sgordon return (0); 2229208649Sgordon} 2230208649Sgordon 2231130038Sgad/* 2232130038Sgad * Save the active log file under a new name. A link to the new name 2233130038Sgad * is the quick-and-easy way to do this. If that fails (which it will 2234130038Sgad * if the destination is on another partition), then make a copy of 2235130038Sgad * the file to the new location. 2236130038Sgad */ 223759004Shmstatic void 2238130038Sgadsavelog(char *from, char *to) 223959004Shm{ 224059004Shm FILE *src, *dst; 2241130038Sgad int c, res; 224259004Shm 2243130038Sgad res = link(from, to); 2244130038Sgad if (res == 0) 2245130038Sgad return; 2246130038Sgad 224759004Shm if ((src = fopen(from, "r")) == NULL) 224859004Shm err(1, "can't fopen %s for reading", from); 224959004Shm if ((dst = fopen(to, "w")) == NULL) 225059004Shm err(1, "can't fopen %s for writing", to); 225159004Shm 225259004Shm while ((c = getc(src)) != EOF) { 225359004Shm if ((putc(c, dst)) == EOF) 225459004Shm err(1, "error writing to %s", to); 225559004Shm } 225659004Shm 225759004Shm if (ferror(src)) 225859004Shm err(1, "error reading from %s", from); 225959004Shm if ((fclose(src)) != 0) 226059004Shm err(1, "can't fclose %s", to); 226159004Shm if ((fclose(dst)) != 0) 226259004Shm err(1, "can't fclose %s", from); 226359004Shm} 226459004Shm 226559004Shm/* create one or more directory components of a path */ 226659004Shmstatic void 2267114137Sgadcreatedir(const struct conf_entry *ent, char *dirpart) 226859004Shm{ 2269111398Sgad int res; 227059004Shm char *s, *d; 227171299Sjedgar char mkdirpath[MAXPATHLEN]; 227259004Shm struct stat st; 227359004Shm 227459004Shm s = dirpart; 227559004Shm d = mkdirpath; 227659004Shm 227759004Shm for (;;) { 227859004Shm *d++ = *s++; 2279111398Sgad if (*s != '/' && *s != '\0') 2280111398Sgad continue; 2281111398Sgad *d = '\0'; 2282111398Sgad res = lstat(mkdirpath, &st); 2283111398Sgad if (res != 0) { 2284111398Sgad if (noaction) { 2285111967Sgad printf("\tmkdir %s\n", mkdirpath); 2286111398Sgad } else { 2287111398Sgad res = mkdir(mkdirpath, 0755); 2288111398Sgad if (res != 0) 2289111398Sgad err(1, "Error on mkdir(\"%s\") for -a", 2290111398Sgad mkdirpath); 2291111398Sgad } 229259004Shm } 229359004Shm if (*s == '\0') 229459004Shm break; 229559004Shm } 2296114137Sgad if (verbose) { 2297114137Sgad if (ent->firstcreate) 2298114137Sgad printf("Created directory '%s' for new %s\n", 2299114137Sgad dirpart, ent->log); 2300114137Sgad else 2301114137Sgad printf("Created directory '%s' for -a\n", dirpart); 2302114137Sgad } 230359004Shm} 230459004Shm 2305114137Sgad/* 2306114137Sgad * Create a new log file, destroying any currently-existing version 2307114137Sgad * of the log file in the process. If the caller wants a backup copy 2308114137Sgad * of the file to exist, they should call 'link(logfile,logbackup)' 2309114137Sgad * before calling this routine. 2310114137Sgad */ 2311114137Sgadvoid 2312114137Sgadcreatelog(const struct conf_entry *ent) 2313114137Sgad{ 2314114137Sgad int fd, failed; 2315114137Sgad struct stat st; 2316114137Sgad char *realfile, *slash, tempfile[MAXPATHLEN]; 2317114137Sgad 2318114137Sgad fd = -1; 2319114137Sgad realfile = ent->log; 2320114137Sgad 2321114137Sgad /* 2322114137Sgad * If this log file is being created for the first time (-C option), 2323114137Sgad * then it may also be true that the parent directory does not exist 2324114137Sgad * yet. Check, and create that directory if it is missing. 2325114137Sgad */ 2326114137Sgad if (ent->firstcreate) { 2327114137Sgad strlcpy(tempfile, realfile, sizeof(tempfile)); 2328114137Sgad slash = strrchr(tempfile, '/'); 2329114137Sgad if (slash != NULL) { 2330114137Sgad *slash = '\0'; 2331131581Ssobomax failed = stat(tempfile, &st); 2332114137Sgad if (failed && errno != ENOENT) 2333131581Ssobomax err(1, "Error on stat(%s)", tempfile); 2334114137Sgad if (failed) 2335114137Sgad createdir(ent, tempfile); 2336114137Sgad else if (!S_ISDIR(st.st_mode)) 2337114137Sgad errx(1, "%s exists but is not a directory", 2338114137Sgad tempfile); 2339114137Sgad } 2340114137Sgad } 2341114137Sgad 2342114137Sgad /* 2343114137Sgad * First create an unused filename, so it can be chown'ed and 2344114137Sgad * chmod'ed before it is moved into the real location. mkstemp 2345114137Sgad * will create the file mode=600 & owned by us. Note that all 2346114137Sgad * temp files will have a suffix of '.z<something>'. 2347114137Sgad */ 2348114137Sgad strlcpy(tempfile, realfile, sizeof(tempfile)); 2349114137Sgad strlcat(tempfile, ".zXXXXXX", sizeof(tempfile)); 2350114137Sgad if (noaction) 2351114137Sgad printf("\tmktemp %s\n", tempfile); 2352114137Sgad else { 2353114137Sgad fd = mkstemp(tempfile); 2354114137Sgad if (fd < 0) 2355114137Sgad err(1, "can't mkstemp logfile %s", tempfile); 2356114137Sgad 2357114137Sgad /* 2358114137Sgad * Add status message to what will become the new log file. 2359114137Sgad */ 2360114137Sgad if (!(ent->flags & CE_BINARY)) { 2361114137Sgad if (log_trim(tempfile, ent)) 2362114137Sgad err(1, "can't add status message to log"); 2363114137Sgad } 2364114137Sgad } 2365114137Sgad 2366114137Sgad /* Change the owner/group, if we are supposed to */ 2367114137Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) { 2368114137Sgad if (noaction) 2369114137Sgad printf("\tchown %u:%u %s\n", ent->uid, ent->gid, 2370114137Sgad tempfile); 2371114137Sgad else { 2372114137Sgad failed = fchown(fd, ent->uid, ent->gid); 2373114137Sgad if (failed) 2374114137Sgad err(1, "can't fchown temp file %s", tempfile); 2375114137Sgad } 2376114137Sgad } 2377114137Sgad 2378130043Sgad /* Turn on NODUMP if it was requested in the config-file. */ 2379130043Sgad if (ent->flags & CE_NODUMP) { 2380130043Sgad if (noaction) 2381130043Sgad printf("\tchflags nodump %s\n", tempfile); 2382130043Sgad else { 2383130043Sgad failed = fchflags(fd, UF_NODUMP); 2384130043Sgad if (failed) { 2385130043Sgad warn("log_trim: fchflags(NODUMP)"); 2386130043Sgad } 2387130043Sgad } 2388130043Sgad } 2389130043Sgad 2390114137Sgad /* 2391114137Sgad * Note that if the real logfile still exists, and if the call 2392114137Sgad * to rename() fails, then "neither the old file nor the new 2393114137Sgad * file shall be changed or created" (to quote the standard). 2394114137Sgad * If the call succeeds, then the file will be replaced without 2395114137Sgad * any window where some other process might find that the file 2396114137Sgad * did not exist. 2397114137Sgad * XXX - ? It may be that for some error conditions, we could 2398114137Sgad * retry by first removing the realfile and then renaming. 2399114137Sgad */ 2400114137Sgad if (noaction) { 2401114137Sgad printf("\tchmod %o %s\n", ent->permissions, tempfile); 2402114137Sgad printf("\tmv %s %s\n", tempfile, realfile); 2403114137Sgad } else { 2404114137Sgad failed = fchmod(fd, ent->permissions); 2405114137Sgad if (failed) 2406114137Sgad err(1, "can't fchmod temp file '%s'", tempfile); 2407114137Sgad failed = rename(tempfile, realfile); 2408114137Sgad if (failed) 2409114137Sgad err(1, "can't mv %s to %s", tempfile, realfile); 2410114137Sgad } 2411114137Sgad 2412114137Sgad if (fd >= 0) 2413114137Sgad close(fd); 2414114137Sgad} 2415130165Sgad 2416154566Sgad/* 2417154566Sgad * Change the attributes of a given filename to what was specified in 2418154566Sgad * the newsyslog.conf entry. This routine is only called for files 2419154566Sgad * that newsyslog expects that it has created, and thus it is a fatal 2420154566Sgad * error if this routine finds that the file does not exist. 2421154566Sgad */ 2422130165Sgadstatic void 2423130165Sgadchange_attrs(const char *fname, const struct conf_entry *ent) 2424130165Sgad{ 2425130165Sgad int failed; 2426130165Sgad 2427130165Sgad if (noaction) { 2428130165Sgad printf("\tchmod %o %s\n", ent->permissions, fname); 2429130165Sgad 2430130165Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 2431130165Sgad printf("\tchown %u:%u %s\n", 2432130165Sgad ent->uid, ent->gid, fname); 2433130165Sgad 2434130165Sgad if (ent->flags & CE_NODUMP) 2435130165Sgad printf("\tchflags nodump %s\n", fname); 2436130165Sgad return; 2437130165Sgad } 2438130165Sgad 2439130165Sgad failed = chmod(fname, ent->permissions); 2440154566Sgad if (failed) { 2441154566Sgad if (errno != EPERM) 2442154566Sgad err(1, "chmod(%s) in change_attrs", fname); 2443154566Sgad warn("change_attrs couldn't chmod(%s)", fname); 2444154566Sgad } 2445130165Sgad 2446130165Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) { 2447130165Sgad failed = chown(fname, ent->uid, ent->gid); 2448130165Sgad if (failed) 2449130165Sgad warn("can't chown %s", fname); 2450130165Sgad } 2451130165Sgad 2452130165Sgad if (ent->flags & CE_NODUMP) { 2453130165Sgad failed = chflags(fname, UF_NODUMP); 2454130165Sgad if (failed) 2455130165Sgad warn("can't chflags %s NODUMP", fname); 2456130165Sgad } 2457130165Sgad} 2458