Index: head/usr.sbin/newsyslog/newsyslog.c =================================================================== --- head/usr.sbin/newsyslog/newsyslog.c (revision 326620) +++ head/usr.sbin/newsyslog/newsyslog.c (revision 326621) @@ -1,2748 +1,2748 @@ /*- * ------+---------+---------+-------- + --------+---------+---------+---------* * This file includes significant modifications done by: * Copyright (c) 2003, 2004 - Garance Alistair Drosehn . * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * ------+---------+---------+-------- + --------+---------+---------+---------* */ /* * This file contains changes from the Open Software Foundation. */ /* * Copyright 1988, 1989 by the Massachusetts Institute of Technology * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, provided * that the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the names of M.I.T. and the M.I.T. S.I.P.B. not be * used in advertising or publicity pertaining to distribution of the * software without specific, written prior permission. M.I.T. and the M.I.T. * S.I.P.B. make no representations about the suitability of this software * for any purpose. It is provided "as is" without express or implied * warranty. * */ /* * newsyslog - roll over selected logs at the appropriate time, keeping the a * specified number of backup files around. */ #include __FBSDID("$FreeBSD$"); #define OSF #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "pathnames.h" #include "extern.h" /* * Compression suffixes */ #ifndef COMPRESS_SUFFIX_GZ #define COMPRESS_SUFFIX_GZ ".gz" #endif #ifndef COMPRESS_SUFFIX_BZ2 #define COMPRESS_SUFFIX_BZ2 ".bz2" #endif #ifndef COMPRESS_SUFFIX_XZ #define COMPRESS_SUFFIX_XZ ".xz" #endif #ifndef COMPRESS_SUFFIX_ZST #define COMPRESS_SUFFIX_ZST ".zst" #endif #define COMPRESS_SUFFIX_MAXLEN MAX(MAX(sizeof(COMPRESS_SUFFIX_GZ),sizeof(COMPRESS_SUFFIX_BZ2)),sizeof(COMPRESS_SUFFIX_XZ)) /* * Compression types */ #define COMPRESS_TYPES 5 /* Number of supported compression types */ #define COMPRESS_NONE 0 #define COMPRESS_GZIP 1 #define COMPRESS_BZIP2 2 #define COMPRESS_XZ 3 #define COMPRESS_ZSTD 4 /* * Bit-values for the 'flags' parsed from a config-file entry. */ #define CE_BINARY 0x0008 /* Logfile is in binary, do not add status */ /* messages to logfile(s) when rotating. */ #define CE_NOSIGNAL 0x0010 /* There is no process to signal when */ /* trimming this file. */ #define CE_TRIMAT 0x0020 /* trim file at a specific time. */ #define CE_GLOB 0x0040 /* name of the log is file name pattern. */ #define CE_SIGNALGROUP 0x0080 /* Signal a process-group instead of a single */ /* process when trimming this file. */ #define CE_CREATE 0x0100 /* Create the log file if it does not exist. */ #define CE_NODUMP 0x0200 /* Set 'nodump' on newly created log file. */ #define CE_PID2CMD 0x0400 /* Replace PID file with a shell command.*/ #define CE_RFC5424 0x0800 /* Use RFC5424 format rotation message */ #define MIN_PID 5 /* Don't touch pids lower than this */ #define MAX_PID 99999 /* was lower, see /usr/include/sys/proc.h */ #define kbytes(size) (((size) + 1023) >> 10) #define DEFAULT_MARKER "" #define DEBUG_MARKER "" #define INCLUDE_MARKER "" #define DEFAULT_TIMEFNAME_FMT "%Y%m%dT%H%M%S" #define MAX_OLDLOGS 65536 /* Default maximum number of old logfiles */ struct compress_types { const char *flag; /* Flag in configuration file */ const char *suffix; /* Compression suffix */ const char *path; /* Path to compression program */ - char **args; /* Comrpession arguments */ + char **args; /* Compession arguments */ }; static char f_arg[] = "-f"; static char q_arg[] = "-q"; static char rm_arg[] = "--rm"; static char *gz_args[] ={ NULL, f_arg, NULL, NULL }; #define bzip2_args gz_args #define xz_args gz_args static char *zstd_args[] = { NULL, q_arg, rm_arg, NULL, NULL }; static const struct compress_types compress_type[COMPRESS_TYPES] = { { "", "", "", NULL}, /* none */ { "Z", COMPRESS_SUFFIX_GZ, _PATH_GZIP, gz_args}, /* gzip */ { "J", COMPRESS_SUFFIX_BZ2, _PATH_BZIP2, bzip2_args}, /* bzip2 */ { "X", COMPRESS_SUFFIX_XZ, _PATH_XZ, xz_args }, /* xz */ { "Y", COMPRESS_SUFFIX_ZST, _PATH_ZSTD, zstd_args } /* zst */ }; struct conf_entry { STAILQ_ENTRY(conf_entry) cf_nextp; char *log; /* Name of the log */ char *pid_cmd_file; /* PID or command file */ char *r_reason; /* The reason this file is being rotated */ int firstcreate; /* Creating log for the first time (-C). */ int rotate; /* Non-zero if this file should be rotated */ int fsize; /* size found for the log file */ uid_t uid; /* Owner of log */ gid_t gid; /* Group of log */ int numlogs; /* Number of logs to keep */ int trsize; /* Size cutoff to trigger trimming the log */ int hours; /* Hours between log trimming */ struct ptime_data *trim_at; /* Specific time to do trimming */ unsigned int permissions; /* File permissions on the log */ int flags; /* CE_BINARY */ int compress; /* Compression */ int sig; /* Signal to send */ int def_cfg; /* Using the rule for this file */ }; struct sigwork_entry { SLIST_ENTRY(sigwork_entry) sw_nextp; int sw_signum; /* the signal to send */ int sw_pidok; /* true if pid value is valid */ pid_t sw_pid; /* the process id from the PID file */ const char *sw_pidtype; /* "daemon" or "process group" */ int sw_runcmd; /* run command or send PID to signal */ char sw_fname[1]; /* file the PID was read from or shell cmd */ }; struct zipwork_entry { SLIST_ENTRY(zipwork_entry) zw_nextp; const struct conf_entry *zw_conf; /* for chown/perm/flag info */ const struct sigwork_entry *zw_swork; /* to know success of signal */ int zw_fsize; /* size of the file to compress */ char zw_fname[1]; /* the file to compress */ }; struct include_entry { STAILQ_ENTRY(include_entry) inc_nextp; const char *file; /* Name of file to process */ }; struct oldlog_entry { char *fname; /* Filename of the log file */ time_t t; /* Parsed timestamp of the logfile */ }; typedef enum { FREE_ENT, KEEP_ENT } fk_entry; STAILQ_HEAD(cflist, conf_entry); static SLIST_HEAD(swlisthead, sigwork_entry) swhead = SLIST_HEAD_INITIALIZER(swhead); static SLIST_HEAD(zwlisthead, zipwork_entry) zwhead = SLIST_HEAD_INITIALIZER(zwhead); STAILQ_HEAD(ilist, include_entry); int dbg_at_times; /* -D Show details of 'trim_at' code */ static int archtodir = 0; /* Archive old logfiles to other directory */ static int createlogs; /* Create (non-GLOB) logfiles which do not */ /* already exist. 1=='for entries with */ /* C flag', 2=='for all entries'. */ int verbose = 0; /* Print out what's going on */ static int needroot = 1; /* Root privs are necessary */ int noaction = 0; /* Don't do anything, just show it */ static int norotate = 0; /* Don't rotate */ static int nosignal; /* Do not send any signals */ static int enforcepid = 0; /* If PID file does not exist or empty, do nothing */ static int force = 0; /* Force the trim no matter what */ static int rotatereq = 0; /* -R = Always rotate the file(s) as given */ /* on the command (this also requires */ /* that a list of files *are* given on */ /* the run command). */ static char *requestor; /* The name given on a -R request */ static char *timefnamefmt = NULL;/* Use time based filenames instead of .0 */ static char *archdirname; /* Directory path to old logfiles archive */ static char *destdir = NULL; /* Directory to treat at root for logs */ static const char *conf; /* Configuration file to use */ struct ptime_data *dbg_timenow; /* A "timenow" value set via -D option */ static struct ptime_data *timenow; /* The time to use for checking at-fields */ #define DAYTIME_LEN 16 static char daytime[DAYTIME_LEN];/* The current time in human readable form, * used for rotation-tracking messages. */ /* Another buffer to hold the current time in RFC5424 format. Fractional * seconds are allowed by the RFC, but are not included in the * rotation-tracking messages written by newsyslog and so are not accounted for * in the length below. */ #define DAYTIME_RFC5424_LEN sizeof("YYYY-MM-DDTHH:MM:SS+00:00") static char daytime_rfc5424[DAYTIME_RFC5424_LEN]; static char hostname[MAXHOSTNAMELEN]; /* hostname */ static const char *path_syslogpid = _PATH_SYSLOGPID; static struct cflist *get_worklist(char **files); static void parse_file(FILE *cf, struct cflist *work_p, struct cflist *glob_p, struct conf_entry *defconf_p, struct ilist *inclist); static void add_to_queue(const char *fname, struct ilist *inclist); static char *sob(char *p); static char *son(char *p); static int isnumberstr(const char *); static int isglobstr(const char *); static char *missing_field(char *p, char *errline); static void change_attrs(const char *, const struct conf_entry *); static const char *get_logfile_suffix(const char *logfile); static fk_entry do_entry(struct conf_entry *); static fk_entry do_rotate(const struct conf_entry *); static void do_sigwork(struct sigwork_entry *); static void do_zipwork(struct zipwork_entry *); static struct sigwork_entry * save_sigwork(const struct conf_entry *); static struct zipwork_entry * save_zipwork(const struct conf_entry *, const struct sigwork_entry *, int, const char *); static void set_swpid(struct sigwork_entry *, const struct conf_entry *); static int sizefile(const char *); static void expand_globs(struct cflist *work_p, struct cflist *glob_p); static void free_clist(struct cflist *list); static void free_entry(struct conf_entry *ent); static struct conf_entry *init_entry(const char *fname, struct conf_entry *src_entry); static void parse_args(int argc, char **argv); static int parse_doption(const char *doption); static void usage(void); static int log_trim(const char *logname, const struct conf_entry *log_ent); static int age_old_log(const char *file); static void savelog(char *from, char *to); static void createdir(const struct conf_entry *ent, char *dirpart); static void createlog(const struct conf_entry *ent); static int parse_signal(const char *str); /* * All the following take a parameter of 'int', but expect values in the * range of unsigned char. Define wrappers which take values of type 'char', * whether signed or unsigned, and ensure they end up in the right range. */ #define isdigitch(Anychar) isdigit((u_char)(Anychar)) #define isprintch(Anychar) isprint((u_char)(Anychar)) #define isspacech(Anychar) isspace((u_char)(Anychar)) #define tolowerch(Anychar) tolower((u_char)(Anychar)) int main(int argc, char **argv) { struct cflist *worklist; struct conf_entry *p; struct sigwork_entry *stmp; struct zipwork_entry *ztmp; SLIST_INIT(&swhead); SLIST_INIT(&zwhead); parse_args(argc, argv); argc -= optind; argv += optind; if (needroot && getuid() && geteuid()) errx(1, "must have root privs"); worklist = get_worklist(argv); /* * Rotate all the files which need to be rotated. Note that * some users have *hundreds* of entries in newsyslog.conf! */ while (!STAILQ_EMPTY(worklist)) { p = STAILQ_FIRST(worklist); STAILQ_REMOVE_HEAD(worklist, cf_nextp); if (do_entry(p) == FREE_ENT) free_entry(p); } /* * Send signals to any processes which need a signal to tell * them to close and re-open the log file(s) we have rotated. * Note that zipwork_entries include pointers to these * sigwork_entry's, so we can not free the entries here. */ if (!SLIST_EMPTY(&swhead)) { if (noaction || verbose) printf("Signal all daemon process(es)...\n"); SLIST_FOREACH(stmp, &swhead, sw_nextp) do_sigwork(stmp); if (!(rotatereq && nosignal)) { if (noaction) printf("\tsleep 10\n"); else { if (verbose) printf("Pause 10 seconds to allow " "daemon(s) to close log file(s)\n"); sleep(10); } } } /* * Compress all files that we're expected to compress, now * that all processes should have closed the files which * have been rotated. */ if (!SLIST_EMPTY(&zwhead)) { if (noaction || verbose) printf("Compress all rotated log file(s)...\n"); while (!SLIST_EMPTY(&zwhead)) { ztmp = SLIST_FIRST(&zwhead); do_zipwork(ztmp); SLIST_REMOVE_HEAD(&zwhead, zw_nextp); free(ztmp); } } /* Now free all the sigwork entries. */ while (!SLIST_EMPTY(&swhead)) { stmp = SLIST_FIRST(&swhead); SLIST_REMOVE_HEAD(&swhead, sw_nextp); free(stmp); } while (wait(NULL) > 0 || errno == EINTR) ; return (0); } static struct conf_entry * init_entry(const char *fname, struct conf_entry *src_entry) { struct conf_entry *tempwork; if (verbose > 4) printf("\t--> [creating entry for %s]\n", fname); tempwork = malloc(sizeof(struct conf_entry)); if (tempwork == NULL) err(1, "malloc of conf_entry for %s", fname); if (destdir == NULL || fname[0] != '/') tempwork->log = strdup(fname); else asprintf(&tempwork->log, "%s%s", destdir, fname); if (tempwork->log == NULL) err(1, "strdup for %s", fname); if (src_entry != NULL) { tempwork->pid_cmd_file = NULL; if (src_entry->pid_cmd_file) tempwork->pid_cmd_file = strdup(src_entry->pid_cmd_file); tempwork->r_reason = NULL; tempwork->firstcreate = 0; tempwork->rotate = 0; tempwork->fsize = -1; tempwork->uid = src_entry->uid; tempwork->gid = src_entry->gid; tempwork->numlogs = src_entry->numlogs; tempwork->trsize = src_entry->trsize; tempwork->hours = src_entry->hours; tempwork->trim_at = NULL; if (src_entry->trim_at != NULL) tempwork->trim_at = ptime_init(src_entry->trim_at); tempwork->permissions = src_entry->permissions; tempwork->flags = src_entry->flags; tempwork->compress = src_entry->compress; tempwork->sig = src_entry->sig; tempwork->def_cfg = src_entry->def_cfg; } else { /* Initialize as a "do-nothing" entry */ tempwork->pid_cmd_file = NULL; tempwork->r_reason = NULL; tempwork->firstcreate = 0; tempwork->rotate = 0; tempwork->fsize = -1; tempwork->uid = (uid_t)-1; tempwork->gid = (gid_t)-1; tempwork->numlogs = 1; tempwork->trsize = -1; tempwork->hours = -1; tempwork->trim_at = NULL; tempwork->permissions = 0; tempwork->flags = 0; tempwork->compress = COMPRESS_NONE; tempwork->sig = SIGHUP; tempwork->def_cfg = 0; } return (tempwork); } static void free_entry(struct conf_entry *ent) { if (ent == NULL) return; if (ent->log != NULL) { if (verbose > 4) printf("\t--> [freeing entry for %s]\n", ent->log); free(ent->log); ent->log = NULL; } if (ent->pid_cmd_file != NULL) { free(ent->pid_cmd_file); ent->pid_cmd_file = NULL; } if (ent->r_reason != NULL) { free(ent->r_reason); ent->r_reason = NULL; } if (ent->trim_at != NULL) { ptime_free(ent->trim_at); ent->trim_at = NULL; } free(ent); } static void free_clist(struct cflist *list) { struct conf_entry *ent; while (!STAILQ_EMPTY(list)) { ent = STAILQ_FIRST(list); STAILQ_REMOVE_HEAD(list, cf_nextp); free_entry(ent); } free(list); list = NULL; } static fk_entry do_entry(struct conf_entry * ent) { #define REASON_MAX 80 int modtime; fk_entry free_or_keep; double diffsecs; char temp_reason[REASON_MAX]; int oversized; free_or_keep = FREE_ENT; if (verbose) printf("%s <%d%s>: ", ent->log, ent->numlogs, compress_type[ent->compress].flag); ent->fsize = sizefile(ent->log); oversized = ((ent->trsize > 0) && (ent->fsize >= ent->trsize)); modtime = age_old_log(ent->log); ent->rotate = 0; ent->firstcreate = 0; if (ent->fsize < 0) { /* * If either the C flag or the -C option was specified, * and if we won't be creating the file, then have the * verbose message include a hint as to why the file * will not be created. */ temp_reason[0] = '\0'; if (createlogs > 1) ent->firstcreate = 1; else if ((ent->flags & CE_CREATE) && createlogs) ent->firstcreate = 1; else if (ent->flags & CE_CREATE) strlcpy(temp_reason, " (no -C option)", REASON_MAX); else if (createlogs) strlcpy(temp_reason, " (no C flag)", REASON_MAX); if (ent->firstcreate) { if (verbose) printf("does not exist -> will create.\n"); createlog(ent); } else if (verbose) { printf("does not exist, skipped%s.\n", temp_reason); } } else { if (ent->flags & CE_TRIMAT && !force && !rotatereq && !oversized) { diffsecs = ptimeget_diff(timenow, ent->trim_at); if (diffsecs < 0.0) { /* trim_at is some time in the future. */ if (verbose) { ptime_adjust4dst(ent->trim_at, timenow); printf("--> will trim at %s", ptimeget_ctime(ent->trim_at)); } return (free_or_keep); } else if (diffsecs >= 3600.0) { /* * trim_at is more than an hour in the past, * so find the next valid trim_at time, and * tell the user what that will be. */ if (verbose && dbg_at_times) printf("\n\t--> prev trim at %s\t", ptimeget_ctime(ent->trim_at)); if (verbose) { ptimeset_nxtime(ent->trim_at); printf("--> will trim at %s", ptimeget_ctime(ent->trim_at)); } return (free_or_keep); } else if (verbose && noaction && dbg_at_times) { /* * If we are just debugging at-times, then * a detailed message is helpful. Also * skip "doing" any commands, since they * would all be turned off by no-action. */ printf("\n\t--> timematch at %s", ptimeget_ctime(ent->trim_at)); return (free_or_keep); } else if (verbose && ent->hours <= 0) { printf("--> time is up\n"); } } if (verbose && (ent->trsize > 0)) printf("size (Kb): %d [%d] ", ent->fsize, ent->trsize); if (verbose && (ent->hours > 0)) printf(" age (hr): %d [%d] ", modtime, ent->hours); /* * Figure out if this logfile needs to be rotated. */ temp_reason[0] = '\0'; if (rotatereq) { ent->rotate = 1; snprintf(temp_reason, REASON_MAX, " due to -R from %s", requestor); } else if (force) { ent->rotate = 1; snprintf(temp_reason, REASON_MAX, " due to -F request"); } else if (oversized) { ent->rotate = 1; snprintf(temp_reason, REASON_MAX, " due to size>%dK", ent->trsize); } else if (ent->hours <= 0 && (ent->flags & CE_TRIMAT)) { ent->rotate = 1; } else if ((ent->hours > 0) && ((modtime >= ent->hours) || (modtime < 0))) { ent->rotate = 1; } /* * If the file needs to be rotated, then rotate it. */ if (ent->rotate && !norotate) { if (temp_reason[0] != '\0') ent->r_reason = strdup(temp_reason); if (verbose) printf("--> trimming log....\n"); if (noaction && !verbose) printf("%s <%d%s>: trimming\n", ent->log, ent->numlogs, compress_type[ent->compress].flag); free_or_keep = do_rotate(ent); } else { if (verbose) printf("--> skipping\n"); } } return (free_or_keep); #undef REASON_MAX } static void parse_args(int argc, char **argv) { int ch; char *p; timenow = ptime_init(NULL); ptimeset_time(timenow, time(NULL)); strlcpy(daytime, ptimeget_ctime(timenow) + 4, DAYTIME_LEN); ptimeget_ctime_rfc5424(timenow, daytime_rfc5424, DAYTIME_RFC5424_LEN); /* Let's get our hostname */ (void)gethostname(hostname, sizeof(hostname)); /* Truncate domain */ if ((p = strchr(hostname, '.')) != NULL) *p = '\0'; /* Parse command line options. */ while ((ch = getopt(argc, argv, "a:d:f:nrst:vCD:FNPR:S:")) != -1) switch (ch) { case 'a': archtodir++; archdirname = optarg; break; case 'd': destdir = optarg; break; case 'f': conf = optarg; break; case 'n': noaction++; /* FALLTHROUGH */ case 'r': needroot = 0; break; case 's': nosignal = 1; break; case 't': if (optarg[0] == '\0' || strcmp(optarg, "DEFAULT") == 0) timefnamefmt = strdup(DEFAULT_TIMEFNAME_FMT); else timefnamefmt = strdup(optarg); break; case 'v': verbose++; break; case 'C': /* Useful for things like rc.diskless... */ createlogs++; break; case 'D': /* * Set some debugging option. The specific option * depends on the value of optarg. These options * may come and go without notice or documentation. */ if (parse_doption(optarg)) break; usage(); /* NOTREACHED */ case 'F': force++; break; case 'N': norotate++; break; case 'P': enforcepid++; break; case 'R': rotatereq++; requestor = strdup(optarg); break; case 'S': path_syslogpid = optarg; break; case 'm': /* Used by OpenBSD for "monitor mode" */ default: usage(); /* NOTREACHED */ } if (force && norotate) { warnx("Only one of -F and -N may be specified."); usage(); /* NOTREACHED */ } if (rotatereq) { if (optind == argc) { warnx("At least one filename must be given when -R is specified."); usage(); /* NOTREACHED */ } /* Make sure "requestor" value is safe for a syslog message. */ for (p = requestor; *p != '\0'; p++) { if (!isprintch(*p) && (*p != '\t')) *p = '.'; } } if (dbg_timenow) { /* * Note that the 'daytime' variable is not changed. * That is only used in messages that track when a * logfile is rotated, and if a file *is* rotated, * then it will still rotated at the "real now" time. */ ptime_free(timenow); timenow = dbg_timenow; fprintf(stderr, "Debug: Running as if TimeNow is %s", ptimeget_ctime(dbg_timenow)); } } /* * These debugging options are mainly meant for developer use, such * as writing regression-tests. They would not be needed by users * during normal operation of newsyslog... */ static int parse_doption(const char *doption) { const char TN[] = "TN="; int res; if (strncmp(doption, TN, sizeof(TN) - 1) == 0) { /* * The "TimeNow" debugging option. This might be off * by an hour when crossing a timezone change. */ dbg_timenow = ptime_init(NULL); res = ptime_relparse(dbg_timenow, PTM_PARSE_ISO8601, time(NULL), doption + sizeof(TN) - 1); if (res == -2) { warnx("Non-existent time specified on -D %s", doption); return (0); /* failure */ } else if (res < 0) { warnx("Malformed time given on -D %s", doption); return (0); /* failure */ } return (1); /* successfully parsed */ } if (strcmp(doption, "ats") == 0) { dbg_at_times++; return (1); /* successfully parsed */ } /* XXX - This check could probably be dropped. */ if ((strcmp(doption, "neworder") == 0) || (strcmp(doption, "oldorder") == 0)) { warnx("NOTE: newsyslog always uses 'neworder'."); return (1); /* successfully parsed */ } warnx("Unknown -D (debug) option: '%s'", doption); return (0); /* failure */ } static void usage(void) { fprintf(stderr, "usage: newsyslog [-CFNPnrsv] [-a directory] [-d directory] [-f config_file]\n" " [-S pidfile] [-t timefmt] [[-R tagname] file ...]\n"); exit(1); } /* * Parse a configuration file and return a linked list of all the logs * which should be processed. */ static struct cflist * get_worklist(char **files) { FILE *f; char **given; struct cflist *cmdlist, *filelist, *globlist; struct conf_entry *defconf, *dupent, *ent; struct ilist inclist; struct include_entry *inc; int gmatch, fnres; defconf = NULL; STAILQ_INIT(&inclist); filelist = malloc(sizeof(struct cflist)); if (filelist == NULL) err(1, "malloc of filelist"); STAILQ_INIT(filelist); globlist = malloc(sizeof(struct cflist)); if (globlist == NULL) err(1, "malloc of globlist"); STAILQ_INIT(globlist); inc = malloc(sizeof(struct include_entry)); if (inc == NULL) err(1, "malloc of inc"); inc->file = conf; if (inc->file == NULL) inc->file = _PATH_CONF; STAILQ_INSERT_TAIL(&inclist, inc, inc_nextp); STAILQ_FOREACH(inc, &inclist, inc_nextp) { if (strcmp(inc->file, "-") != 0) f = fopen(inc->file, "r"); else { f = stdin; inc->file = ""; } if (!f) err(1, "%s", inc->file); if (verbose) printf("Processing %s\n", inc->file); parse_file(f, filelist, globlist, defconf, &inclist); (void) fclose(f); } /* * All config-file information has been read in and turned into * a filelist and a globlist. If there were no specific files * given on the run command, then the only thing left to do is to * call a routine which finds all files matched by the globlist * and adds them to the filelist. Then return the worklist. */ if (*files == NULL) { expand_globs(filelist, globlist); free_clist(globlist); if (defconf != NULL) free_entry(defconf); return (filelist); /* NOTREACHED */ } /* * If newsyslog was given a specific list of files to process, * it may be that some of those files were not listed in any * config file. Those unlisted files should get the default * rotation action. First, create the default-rotation action * if none was found in a system config file. */ if (defconf == NULL) { defconf = init_entry(DEFAULT_MARKER, NULL); defconf->numlogs = 3; defconf->trsize = 50; defconf->permissions = S_IRUSR|S_IWUSR; } /* * If newsyslog was run with a list of specific filenames, * then create a new worklist which has only those files in * it, picking up the rotation-rules for those files from * the original filelist. * * XXX - Note that this will copy multiple rules for a single * logfile, if multiple entries are an exact match for * that file. That matches the historic behavior, but do * we want to continue to allow it? If so, it should * probably be handled more intelligently. */ cmdlist = malloc(sizeof(struct cflist)); if (cmdlist == NULL) err(1, "malloc of cmdlist"); STAILQ_INIT(cmdlist); for (given = files; *given; ++given) { /* * First try to find exact-matches for this given file. */ gmatch = 0; STAILQ_FOREACH(ent, filelist, cf_nextp) { if (strcmp(ent->log, *given) == 0) { gmatch++; dupent = init_entry(*given, ent); STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp); } } if (gmatch) { if (verbose > 2) printf("\t+ Matched entry %s\n", *given); continue; } /* * There was no exact-match for this given file, so look * for a "glob" entry which does match. */ gmatch = 0; if (verbose > 2 && globlist != NULL) printf("\t+ Checking globs for %s\n", *given); STAILQ_FOREACH(ent, globlist, cf_nextp) { fnres = fnmatch(ent->log, *given, FNM_PATHNAME); if (verbose > 2) printf("\t+ = %d for pattern %s\n", fnres, ent->log); if (fnres == 0) { gmatch++; dupent = init_entry(*given, ent); /* This new entry is not a glob! */ dupent->flags &= ~CE_GLOB; STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp); /* Only allow a match to one glob-entry */ break; } } if (gmatch) { if (verbose > 2) printf("\t+ Matched %s via %s\n", *given, ent->log); continue; } /* * This given file was not found in any config file, so * add a worklist item based on the default entry. */ if (verbose > 2) printf("\t+ No entry matched %s (will use %s)\n", *given, DEFAULT_MARKER); dupent = init_entry(*given, defconf); /* Mark that it was *not* found in a config file */ dupent->def_cfg = 1; STAILQ_INSERT_TAIL(cmdlist, dupent, cf_nextp); } /* * Free all the entries in the original work list, the list of * glob entries, and the default entry. */ free_clist(filelist); free_clist(globlist); free_entry(defconf); /* And finally, return a worklist which matches the given files. */ return (cmdlist); } /* * Expand the list of entries with filename patterns, and add all files * which match those glob-entries onto the worklist. */ static void expand_globs(struct cflist *work_p, struct cflist *glob_p) { int gmatch, gres; size_t i; char *mfname; struct conf_entry *dupent, *ent, *globent; glob_t pglob; struct stat st_fm; /* * The worklist contains all fully-specified (non-GLOB) names. * * Now expand the list of filename-pattern (GLOB) entries into * a second list, which (by definition) will only match files * that already exist. Do not add a glob-related entry for any * file which already exists in the fully-specified list. */ STAILQ_FOREACH(globent, glob_p, cf_nextp) { gres = glob(globent->log, GLOB_NOCHECK, NULL, &pglob); if (gres != 0) { warn("cannot expand pattern (%d): %s", gres, globent->log); continue; } if (verbose > 2) printf("\t+ Expanding pattern %s\n", globent->log); for (i = 0; i < pglob.gl_matchc; i++) { mfname = pglob.gl_pathv[i]; /* See if this file already has a specific entry. */ gmatch = 0; STAILQ_FOREACH(ent, work_p, cf_nextp) { if (strcmp(mfname, ent->log) == 0) { gmatch++; break; } } if (gmatch) continue; /* Make sure the named matched is a file. */ gres = lstat(mfname, &st_fm); if (gres != 0) { /* Error on a file that glob() matched?!? */ warn("Skipping %s - lstat() error", mfname); continue; } if (!S_ISREG(st_fm.st_mode)) { /* We only rotate files! */ if (verbose > 2) printf("\t+ . skipping %s (!file)\n", mfname); continue; } if (verbose > 2) printf("\t+ . add file %s\n", mfname); dupent = init_entry(mfname, globent); /* This new entry is not a glob! */ dupent->flags &= ~CE_GLOB; /* Add to the worklist. */ STAILQ_INSERT_TAIL(work_p, dupent, cf_nextp); } globfree(&pglob); if (verbose > 2) printf("\t+ Done with pattern %s\n", globent->log); } } /* * Parse a configuration file and update a linked list of all the logs to * process. */ static void parse_file(FILE *cf, struct cflist *work_p, struct cflist *glob_p, struct conf_entry *defconf_p, struct ilist *inclist) { char line[BUFSIZ], *parse, *q; char *cp, *errline, *group; struct conf_entry *working; struct passwd *pwd; struct group *grp; glob_t pglob; int eol, ptm_opts, res, special; size_t i; errline = NULL; while (fgets(line, BUFSIZ, cf)) { if ((line[0] == '\n') || (line[0] == '#') || (strlen(line) == 0)) continue; if (errline != NULL) free(errline); errline = strdup(line); for (cp = line + 1; *cp != '\0'; cp++) { if (*cp != '#') continue; if (*(cp - 1) == '\\') { strcpy(cp - 1, cp); cp--; continue; } *cp = '\0'; break; } q = parse = missing_field(sob(line), errline); parse = son(line); if (!*parse) errx(1, "malformed line (missing fields):\n%s", errline); *parse = '\0'; /* * Allow people to set debug options via the config file. * (NOTE: debug options are undocumented, and may disappear * at any time, etc). */ if (strcasecmp(DEBUG_MARKER, q) == 0) { q = parse = missing_field(sob(parse + 1), errline); parse = son(parse); if (!*parse) warnx("debug line specifies no option:\n%s", errline); else { *parse = '\0'; parse_doption(q); } continue; } else if (strcasecmp(INCLUDE_MARKER, q) == 0) { if (verbose) printf("Found: %s", errline); q = parse = missing_field(sob(parse + 1), errline); parse = son(parse); if (!*parse) { warnx("include line missing argument:\n%s", errline); continue; } *parse = '\0'; if (isglobstr(q)) { res = glob(q, GLOB_NOCHECK, NULL, &pglob); if (res != 0) { warn("cannot expand pattern (%d): %s", res, q); continue; } if (verbose > 2) printf("\t+ Expanding pattern %s\n", q); for (i = 0; i < pglob.gl_matchc; i++) add_to_queue(pglob.gl_pathv[i], inclist); globfree(&pglob); } else add_to_queue(q, inclist); continue; } special = 0; working = init_entry(q, NULL); if (strcasecmp(DEFAULT_MARKER, q) == 0) { special = 1; if (defconf_p != NULL) { warnx("Ignoring duplicate entry for %s!", q); free_entry(working); continue; } defconf_p = working; } q = parse = missing_field(sob(parse + 1), errline); parse = son(parse); if (!*parse) errx(1, "malformed line (missing fields):\n%s", errline); *parse = '\0'; if ((group = strchr(q, ':')) != NULL || (group = strrchr(q, '.')) != NULL) { *group++ = '\0'; if (*q) { if (!(isnumberstr(q))) { if ((pwd = getpwnam(q)) == NULL) errx(1, "error in config file; unknown user:\n%s", errline); working->uid = pwd->pw_uid; } else working->uid = atoi(q); } else working->uid = (uid_t)-1; q = group; if (*q) { if (!(isnumberstr(q))) { if ((grp = getgrnam(q)) == NULL) errx(1, "error in config file; unknown group:\n%s", errline); working->gid = grp->gr_gid; } else working->gid = atoi(q); } else working->gid = (gid_t)-1; q = parse = missing_field(sob(parse + 1), errline); parse = son(parse); if (!*parse) errx(1, "malformed line (missing fields):\n%s", errline); *parse = '\0'; } else { working->uid = (uid_t)-1; working->gid = (gid_t)-1; } if (!sscanf(q, "%o", &working->permissions)) errx(1, "error in config file; bad permissions:\n%s", errline); q = parse = missing_field(sob(parse + 1), errline); parse = son(parse); if (!*parse) errx(1, "malformed line (missing fields):\n%s", errline); *parse = '\0'; if (!sscanf(q, "%d", &working->numlogs) || working->numlogs < 0) errx(1, "error in config file; bad value for count of logs to save:\n%s", errline); q = parse = missing_field(sob(parse + 1), errline); parse = son(parse); if (!*parse) errx(1, "malformed line (missing fields):\n%s", errline); *parse = '\0'; if (isdigitch(*q)) working->trsize = atoi(q); else if (strcmp(q, "*") == 0) working->trsize = -1; else { warnx("Invalid value of '%s' for 'size' in line:\n%s", q, errline); working->trsize = -1; } working->flags = 0; working->compress = COMPRESS_NONE; q = parse = missing_field(sob(parse + 1), errline); parse = son(parse); eol = !*parse; *parse = '\0'; { char *ep; u_long ul; ul = strtoul(q, &ep, 10); if (ep == q) working->hours = 0; else if (*ep == '*') working->hours = -1; else if (ul > INT_MAX) errx(1, "interval is too large:\n%s", errline); else working->hours = ul; if (*ep == '\0' || strcmp(ep, "*") == 0) goto no_trimat; if (*ep != '@' && *ep != '$') errx(1, "malformed interval/at:\n%s", errline); working->flags |= CE_TRIMAT; working->trim_at = ptime_init(NULL); ptm_opts = PTM_PARSE_ISO8601; if (*ep == '$') ptm_opts = PTM_PARSE_DWM; ptm_opts |= PTM_PARSE_MATCHDOM; res = ptime_relparse(working->trim_at, ptm_opts, ptimeget_secs(timenow), ep + 1); if (res == -2) errx(1, "nonexistent time for 'at' value:\n%s", errline); else if (res < 0) errx(1, "malformed 'at' value:\n%s", errline); } no_trimat: if (eol) q = NULL; else { q = parse = sob(parse + 1); /* Optional field */ parse = son(parse); if (!*parse) eol = 1; *parse = '\0'; } for (; q && *q && !isspacech(*q); q++) { switch (tolowerch(*q)) { case 'b': working->flags |= CE_BINARY; break; case 'c': working->flags |= CE_CREATE; break; case 'd': working->flags |= CE_NODUMP; break; case 'g': working->flags |= CE_GLOB; break; case 'j': working->compress = COMPRESS_BZIP2; break; case 'n': working->flags |= CE_NOSIGNAL; break; case 'r': working->flags |= CE_PID2CMD; break; case 't': working->flags |= CE_RFC5424; break; case 'u': working->flags |= CE_SIGNALGROUP; break; case 'w': /* Deprecated flag - keep for compatibility purposes */ break; case 'x': working->compress = COMPRESS_XZ; break; case 'y': working->compress = COMPRESS_ZSTD; break; case 'z': working->compress = COMPRESS_GZIP; break; case '-': break; case 'f': /* Used by OpenBSD for "CE_FOLLOW" */ case 'm': /* Used by OpenBSD for "CE_MONITOR" */ case 'p': /* Used by NetBSD for "CE_PLAIN0" */ default: errx(1, "illegal flag in config file -- %c", *q); } } if (eol) q = NULL; else { q = parse = sob(parse + 1); /* Optional field */ parse = son(parse); if (!*parse) eol = 1; *parse = '\0'; } working->pid_cmd_file = NULL; if (q && *q) { if (*q == '/') working->pid_cmd_file = strdup(q); else if (isalnum(*q)) goto got_sig; else { errx(1, "illegal pid file or signal in config file:\n%s", errline); } } if (eol) q = NULL; else { q = parse = sob(parse + 1); /* Optional field */ *(parse = son(parse)) = '\0'; } working->sig = SIGHUP; if (q && *q) { got_sig: working->sig = parse_signal(q); if (working->sig < 1 || working->sig >= sys_nsig) { errx(1, "illegal signal in config file:\n%s", errline); } } /* * Finish figuring out what pid-file to use (if any) in * later processing if this logfile needs to be rotated. */ if ((working->flags & CE_NOSIGNAL) == CE_NOSIGNAL) { /* * This config-entry specified 'n' for nosignal, * see if it also specified an explicit pid_cmd_file. * This would be a pretty pointless combination. */ if (working->pid_cmd_file != NULL) { warnx("Ignoring '%s' because flag 'n' was specified in line:\n%s", working->pid_cmd_file, errline); free(working->pid_cmd_file); working->pid_cmd_file = NULL; } } else if (working->pid_cmd_file == NULL) { /* * This entry did not specify the 'n' flag, which * means it should signal syslogd unless it had * specified some other pid-file (and obviously the * syslog pid-file will not be for a process-group). * Also, we should only try to notify syslog if we * are root. */ if (working->flags & CE_SIGNALGROUP) { warnx("Ignoring flag 'U' in line:\n%s", errline); working->flags &= ~CE_SIGNALGROUP; } if (needroot) working->pid_cmd_file = strdup(path_syslogpid); } /* * Add this entry to the appropriate list of entries, unless * it was some kind of special entry (eg: ). */ if (special) { ; /* Do not add to any list */ } else if (working->flags & CE_GLOB) { STAILQ_INSERT_TAIL(glob_p, working, cf_nextp); } else { STAILQ_INSERT_TAIL(work_p, working, cf_nextp); } } if (errline != NULL) free(errline); } static char * missing_field(char *p, char *errline) { if (!p || !*p) errx(1, "missing field in config file:\n%s", errline); return (p); } /* * In our sort we return it in the reverse of what qsort normally * would do, as we want the newest files first. If we have two * entries with the same time we don't really care about order. * * Support function for qsort() in delete_oldest_timelog(). */ static int oldlog_entry_compare(const void *a, const void *b) { const struct oldlog_entry *ola = a, *olb = b; if (ola->t > olb->t) return (-1); else if (ola->t < olb->t) return (1); else return (0); } /* * Check whether the file corresponding to dp is an archive of the logfile * logfname, based on the timefnamefmt format string. Return true and fill out * tm if this is the case; otherwise return false. */ static int validate_old_timelog(int fd, const struct dirent *dp, const char *logfname, struct tm *tm) { struct stat sb; size_t logfname_len; char *s; int c; logfname_len = strlen(logfname); if (dp->d_type != DT_REG) { /* * Some filesystems (e.g. NFS) don't fill out the d_type field * and leave it set to DT_UNKNOWN; in this case we must obtain * the file type ourselves. */ if (dp->d_type != DT_UNKNOWN || fstatat(fd, dp->d_name, &sb, AT_SYMLINK_NOFOLLOW) != 0 || !S_ISREG(sb.st_mode)) return (0); } /* Ignore everything but files with our logfile prefix. */ if (strncmp(dp->d_name, logfname, logfname_len) != 0) return (0); /* Ignore the actual non-rotated logfile. */ if (dp->d_namlen == logfname_len) return (0); /* * Make sure we created have found a logfile, so the * postfix is valid, IE format is: '.