newsyslog.c revision 111966
113244Sgraichen/* 213244Sgraichen * This file contains changes from the Open Software Foundation. 313244Sgraichen */ 413244Sgraichen 513244Sgraichen/* 659004Shm * Copyright 1988, 1989 by the Massachusetts Institute of Technology 759004Shm * 859004Shm * Permission to use, copy, modify, and distribute this software and its 959004Shm * documentation for any purpose and without fee is hereby granted, provided 1059004Shm * that the above copyright notice appear in all copies and that both that 1159004Shm * copyright notice and this permission notice appear in supporting 1259004Shm * documentation, and that the names of M.I.T. and the M.I.T. S.I.P.B. not be 1359004Shm * used in advertising or publicity pertaining to distribution of the 1459004Shm * software without specific, written prior permission. M.I.T. and the M.I.T. 1559004Shm * S.I.P.B. make no representations about the suitability of this software 1659004Shm * for any purpose. It is provided "as is" without express or implied 1759004Shm * warranty. 1859004Shm * 1959004Shm */ 2013244Sgraichen 2113244Sgraichen/* 2259004Shm * newsyslog - roll over selected logs at the appropriate time, keeping the a 2359004Shm * specified number of backup files around. 2413244Sgraichen */ 2513244Sgraichen 2613244Sgraichen#ifndef lint 2730160Scharnierstatic const char rcsid[] = 2859003Shm"$FreeBSD: head/usr.sbin/newsyslog/newsyslog.c 111966 2003-03-07 21:06:32Z gad $"; 2959004Shm#endif /* not lint */ 3013244Sgraichen 3143071Swollman#define OSF 3213244Sgraichen#ifndef COMPRESS_POSTFIX 3343071Swollman#define COMPRESS_POSTFIX ".gz" 3413244Sgraichen#endif 3580638Sobrien#ifndef BZCOMPRESS_POSTFIX 3680638Sobrien#define BZCOMPRESS_POSTFIX ".bz2" 3780638Sobrien#endif 3813244Sgraichen 3996001Smaxim#include <sys/param.h> 4096001Smaxim#include <sys/stat.h> 4196001Smaxim#include <sys/wait.h> 4296001Smaxim 4330160Scharnier#include <ctype.h> 4430160Scharnier#include <err.h> 4595999Smaxim#include <errno.h> 4630160Scharnier#include <fcntl.h> 47111773Sgad#include <fnmatch.h> 48106905Ssobomax#include <glob.h> 4930160Scharnier#include <grp.h> 5043071Swollman#include <paths.h> 5130160Scharnier#include <pwd.h> 5230160Scharnier#include <signal.h> 5313244Sgraichen#include <stdio.h> 5413244Sgraichen#include <stdlib.h> 5513244Sgraichen#include <string.h> 5643071Swollman#include <time.h> 5716240Salex#include <unistd.h> 5813244Sgraichen 5943071Swollman#include "pathnames.h" 6043071Swollman 61111768Sgad/* 62111768Sgad * Bit-values for the 'flags' parsed from a config-file entry. 63111768Sgad */ 64111768Sgad#define CE_COMPACT 0x0001 /* Compact the achived log files with gzip. */ 65111768Sgad#define CE_BZCOMPACT 0x0002 /* Compact the achived log files with bzip2. */ 66111781Sgad#define CE_COMPACTWAIT 0x0004 /* wait until compressing one file finishes */ 67111768Sgad /* before starting the next step. */ 68111768Sgad#define CE_BINARY 0x0008 /* Logfile is in binary, do not add status */ 69111768Sgad /* messages to logfile(s) when rotating. */ 70111781Sgad#define CE_NOSIGNAL 0x0010 /* There is no process to signal when */ 71111768Sgad /* trimming this file. */ 72111781Sgad#define CE_TRIMAT 0x0020 /* trim file at a specific time. */ 73111781Sgad#define CE_GLOB 0x0040 /* name of the log is file name pattern. */ 7443071Swollman 75111781Sgad#define MIN_PID 5 /* Don't touch pids lower than this */ 76111781Sgad#define MAX_PID 99999 /* was lower, see /usr/include/sys/proc.h */ 77111781Sgad 78111781Sgad#define kbytes(size) (((size) + 1023) >> 10) 79111781Sgad 8013244Sgraichenstruct conf_entry { 8159003Shm char *log; /* Name of the log */ 8259003Shm char *pid_file; /* PID file */ 83111772Sgad char *r_reason; /* The reason this file is being rotated */ 84111772Sgad int rotate; /* Non-zero if this file should be rotated */ 85111779Sgad uid_t uid; /* Owner of log */ 86111779Sgad gid_t gid; /* Group of log */ 8759003Shm int numlogs; /* Number of logs to keep */ 8859003Shm int size; /* Size cutoff to trigger trimming the log */ 8959003Shm int hours; /* Hours between log trimming */ 9059003Shm time_t trim_at; /* Specific time to do trimming */ 9159003Shm int permissions; /* File permissions on the log */ 9280646Sobrien int flags; /* CE_COMPACT, CE_BZCOMPACT, CE_BINARY */ 9359003Shm int sig; /* Signal to send */ 94111388Sgad int def_cfg; /* Using the <default> rule for this file */ 9559003Shm struct conf_entry *next;/* Linked list pointer */ 9613244Sgraichen}; 9713244Sgraichen 98111388Sgad#define DEFAULT_MARKER "<default>" 99111388Sgad 10059004Shmint archtodir = 0; /* Archive old logfiles to other directory */ 10159003Shmint verbose = 0; /* Print out what's going on */ 10259003Shmint needroot = 1; /* Root privs are necessary */ 10359003Shmint noaction = 0; /* Don't do anything, just show it */ 104111768Sgadint nosignal; /* Do not send any signals */ 10559003Shmint force = 0; /* Force the trim no matter what */ 106111772Sgadint rotatereq = 0; /* -R = Always rotate the file(s) as given */ 107111772Sgad /* on the command (this also requires */ 108111772Sgad /* that a list of files *are* given on */ 109111772Sgad /* the run command). */ 110111772Sgadchar *requestor; /* The name given on a -R request */ 11159004Shmchar *archdirname; /* Directory path to old logfiles archive */ 112111773Sgadconst char *conf; /* Configuration file to use */ 11359003Shmtime_t timenow; 11459003Shm 11571299Sjedgarchar hostname[MAXHOSTNAMELEN]; /* hostname */ 116108164Strhodeschar daytime[16]; /* timenow in human readable form */ 11713244Sgraichen 118111773Sgadstatic struct conf_entry *get_worklist(char **files); 119111773Sgadstatic void parse_file(FILE *cf, const char *cfname, struct conf_entry **work_p, 120111773Sgad struct conf_entry **defconf_p); 12116240Salexstatic char *sob(char *p); 12216240Salexstatic char *son(char *p); 12359003Shmstatic char *missing_field(char *p, char *errline); 12459003Shmstatic void do_entry(struct conf_entry * ent); 125111388Sgadstatic void free_entry(struct conf_entry *ent); 126111388Sgadstatic struct conf_entry *init_entry(const char *fname, 127111388Sgad struct conf_entry *src_entry); 128111781Sgadstatic void parse_args(int argc, char **argv); 12980640Sobrienstatic void usage(void); 130111779Sgadstatic void dotrim(const struct conf_entry *ent, char *log, 131111780Sgad int numdays, int flags); 132111768Sgadstatic int log_trim(const char *log, const struct conf_entry *log_ent); 133107916Ssobomaxstatic void compress_log(char *log, int dowait); 134107916Ssobomaxstatic void bzcompress_log(char *log, int dowait); 13516240Salexstatic int sizefile(char *file); 13616240Salexstatic int age_old_log(char *file); 13780640Sobrienstatic pid_t get_pid(const char *pid_file); 13893659Scjcstatic time_t parse8601(char *s, char *errline); 139111779Sgadstatic void movefile(char *from, char *to, int perm, uid_t owner_uid, 140111779Sgad gid_t group_gid); 14159004Shmstatic void createdir(char *dirpart); 14293659Scjcstatic time_t parseDWM(char *s, char *errline); 14313244Sgraichen 144111768Sgad/* 145111768Sgad * All the following are defined to work on an 'int', in the 146111768Sgad * range 0 to 255, plus EOF. Define wrappers which can take 147111768Sgad * values of type 'char', either signed or unsigned. 148111768Sgad */ 149111772Sgad#define isprintch(Anychar) isprint(((int) Anychar) & 255) 150111768Sgad#define isspacech(Anychar) isspace(((int) Anychar) & 255) 151111768Sgad#define tolowerch(Anychar) tolower(((int) Anychar) & 255) 152111768Sgad 15359004Shmint 15459004Shmmain(int argc, char **argv) 15513244Sgraichen{ 15659003Shm struct conf_entry *p, *q; 157111529Sgad char *savglob; 158106905Ssobomax glob_t pglob; 159106905Ssobomax int i; 16025443Sache 161111781Sgad parse_args(argc, argv); 162111773Sgad argc -= optind; 163111773Sgad argv += optind; 164111773Sgad 16559003Shm if (needroot && getuid() && geteuid()) 16659003Shm errx(1, "must have root privs"); 167111773Sgad p = q = get_worklist(argv); 16859003Shm 16959003Shm while (p) { 170106905Ssobomax if ((p->flags & CE_GLOB) == 0) { 171106905Ssobomax do_entry(p); 172106905Ssobomax } else { 173111773Sgad if (verbose > 2) 174111773Sgad printf("\t+ Processing pattern %s\n", p->log); 175106905Ssobomax if (glob(p->log, GLOB_NOCHECK, NULL, &pglob) != 0) { 176106905Ssobomax warn("can't expand pattern: %s", p->log); 177106905Ssobomax } else { 178111529Sgad savglob = p->log; 179106905Ssobomax for (i = 0; i < pglob.gl_matchc; i++) { 180106905Ssobomax p->log = pglob.gl_pathv[i]; 181106905Ssobomax do_entry(p); 182106905Ssobomax } 183106905Ssobomax globfree(&pglob); 184111529Sgad p->log = savglob; 185111773Sgad if (verbose > 2) 186111773Sgad printf("\t+ Done with pattern\n"); 187106905Ssobomax } 188106905Ssobomax } 18959003Shm p = p->next; 190111388Sgad free_entry(q); 19159003Shm q = p; 19259003Shm } 19395999Smaxim while (wait(NULL) > 0 || errno == EINTR) 19495999Smaxim ; 19559003Shm return (0); 19613244Sgraichen} 19713244Sgraichen 198111388Sgadstatic struct conf_entry * 199111388Sgadinit_entry(const char *fname, struct conf_entry *src_entry) 200111388Sgad{ 201111388Sgad struct conf_entry *tempwork; 202111388Sgad 203111388Sgad if (verbose > 4) 204111388Sgad printf("\t--> [creating entry for %s]\n", fname); 205111388Sgad 206111388Sgad tempwork = malloc(sizeof(struct conf_entry)); 207111388Sgad if (tempwork == NULL) 208111388Sgad err(1, "malloc of conf_entry for %s", fname); 209111388Sgad 210111388Sgad tempwork->log = strdup(fname); 211111388Sgad if (tempwork->log == NULL) 212111388Sgad err(1, "strdup for %s", fname); 213111388Sgad 214111388Sgad if (src_entry != NULL) { 215111388Sgad tempwork->pid_file = NULL; 216111388Sgad if (src_entry->pid_file) 217111388Sgad tempwork->pid_file = strdup(src_entry->pid_file); 218111772Sgad tempwork->r_reason = NULL; 219111772Sgad tempwork->rotate = 0; 220111388Sgad tempwork->uid = src_entry->uid; 221111388Sgad tempwork->gid = src_entry->gid; 222111388Sgad tempwork->numlogs = src_entry->numlogs; 223111388Sgad tempwork->size = src_entry->size; 224111388Sgad tempwork->hours = src_entry->hours; 225111388Sgad tempwork->trim_at = src_entry->trim_at; 226111388Sgad tempwork->permissions = src_entry->permissions; 227111388Sgad tempwork->flags = src_entry->flags; 228111388Sgad tempwork->sig = src_entry->sig; 229111388Sgad tempwork->def_cfg = src_entry->def_cfg; 230111388Sgad } else { 231111388Sgad /* Initialize as a "do-nothing" entry */ 232111388Sgad tempwork->pid_file = NULL; 233111772Sgad tempwork->r_reason = NULL; 234111772Sgad tempwork->rotate = 0; 235111779Sgad tempwork->uid = (uid_t)-1; 236111779Sgad tempwork->gid = (gid_t)-1; 237111388Sgad tempwork->numlogs = 1; 238111388Sgad tempwork->size = -1; 239111388Sgad tempwork->hours = -1; 240111388Sgad tempwork->trim_at = (time_t)0; 241111388Sgad tempwork->permissions = 0; 242111388Sgad tempwork->flags = 0; 243111388Sgad tempwork->sig = SIGHUP; 244111388Sgad tempwork->def_cfg = 0; 245111388Sgad } 246111388Sgad tempwork->next = NULL; 247111388Sgad 248111388Sgad return (tempwork); 249111388Sgad} 250111388Sgad 25159004Shmstatic void 252111388Sgadfree_entry(struct conf_entry *ent) 253111388Sgad{ 254111388Sgad 255111388Sgad if (ent == NULL) 256111388Sgad return; 257111388Sgad 258111388Sgad if (ent->log != NULL) { 259111388Sgad if (verbose > 4) 260111388Sgad printf("\t--> [freeing entry for %s]\n", ent->log); 261111388Sgad free(ent->log); 262111388Sgad ent->log = NULL; 263111388Sgad } 264111388Sgad 265111388Sgad if (ent->pid_file != NULL) { 266111388Sgad free(ent->pid_file); 267111388Sgad ent->pid_file = NULL; 268111388Sgad } 269111388Sgad 270111772Sgad if (ent->r_reason != NULL) { 271111772Sgad free(ent->r_reason); 272111772Sgad ent->r_reason = NULL; 273111772Sgad } 274111772Sgad 275111388Sgad free(ent); 276111388Sgad} 277111388Sgad 278111388Sgadstatic void 27959004Shmdo_entry(struct conf_entry * ent) 28013244Sgraichen{ 281111772Sgad#define REASON_MAX 80 28259003Shm int size, modtime; 283111772Sgad char temp_reason[REASON_MAX]; 28459003Shm 28559003Shm if (verbose) { 28659003Shm if (ent->flags & CE_COMPACT) 28759003Shm printf("%s <%dZ>: ", ent->log, ent->numlogs); 28880638Sobrien else if (ent->flags & CE_BZCOMPACT) 28980638Sobrien printf("%s <%dJ>: ", ent->log, ent->numlogs); 29059003Shm else 29159003Shm printf("%s <%d>: ", ent->log, ent->numlogs); 29259003Shm } 29359003Shm size = sizefile(ent->log); 29459003Shm modtime = age_old_log(ent->log); 295111772Sgad ent->rotate = 0; 29659003Shm if (size < 0) { 29759003Shm if (verbose) 29859003Shm printf("does not exist.\n"); 29959003Shm } else { 300111772Sgad if (ent->flags & CE_TRIMAT && !force && !rotatereq) { 30143071Swollman if (timenow < ent->trim_at 30259003Shm || difftime(timenow, ent->trim_at) >= 60 * 60) { 30343071Swollman if (verbose) 30443071Swollman printf("--> will trim at %s", 30559003Shm ctime(&ent->trim_at)); 30643071Swollman return; 30743071Swollman } else if (verbose && ent->hours <= 0) { 30843071Swollman printf("--> time is up\n"); 30943071Swollman } 31043071Swollman } 31159003Shm if (verbose && (ent->size > 0)) 31259003Shm printf("size (Kb): %d [%d] ", size, ent->size); 31359003Shm if (verbose && (ent->hours > 0)) 31459003Shm printf(" age (hr): %d [%d] ", modtime, ent->hours); 315111772Sgad 316111772Sgad /* 317111772Sgad * Figure out if this logfile needs to be rotated. 318111772Sgad */ 319111772Sgad temp_reason[0] = '\0'; 320111772Sgad if (rotatereq) { 321111772Sgad ent->rotate = 1; 322111772Sgad snprintf(temp_reason, REASON_MAX, " due to -R from %s", 323111772Sgad requestor); 324111772Sgad } else if (force) { 325111772Sgad ent->rotate = 1; 326111772Sgad snprintf(temp_reason, REASON_MAX, " due to -F request"); 327111772Sgad } else if ((ent->size > 0) && (size >= ent->size)) { 328111772Sgad ent->rotate = 1; 329111772Sgad snprintf(temp_reason, REASON_MAX, " due to size>%dK", 330111772Sgad ent->size); 331111772Sgad } else if (ent->hours <= 0 && (ent->flags & CE_TRIMAT)) { 332111772Sgad ent->rotate = 1; 333111772Sgad } else if ((ent->hours > 0) && ((modtime >= ent->hours) || 334111772Sgad (modtime < 0))) { 335111772Sgad ent->rotate = 1; 336111772Sgad } 337111772Sgad 338111772Sgad /* 339111772Sgad * If the file needs to be rotated, then rotate it. 340111772Sgad */ 341111772Sgad if (ent->rotate) { 342111772Sgad if (temp_reason[0] != '\0') 343111772Sgad ent->r_reason = strdup(temp_reason); 34459003Shm if (verbose) 34559003Shm printf("--> trimming log....\n"); 34659003Shm if (noaction && !verbose) { 34759003Shm if (ent->flags & CE_COMPACT) 34859003Shm printf("%s <%dZ>: trimming\n", 34959003Shm ent->log, ent->numlogs); 35080638Sobrien else if (ent->flags & CE_BZCOMPACT) 35180638Sobrien printf("%s <%dJ>: trimming\n", 35280638Sobrien ent->log, ent->numlogs); 35359003Shm else 35459003Shm printf("%s <%d>: trimming\n", 35559003Shm ent->log, ent->numlogs); 35659003Shm } 357111780Sgad dotrim(ent, ent->log, ent->numlogs, ent->flags); 35859003Shm } else { 35959003Shm if (verbose) 36059003Shm printf("--> skipping\n"); 36159003Shm } 36259003Shm } 363111772Sgad#undef REASON_MAX 36413244Sgraichen} 36513244Sgraichen 36659004Shmstatic void 367111781Sgadparse_args(int argc, char **argv) 36813244Sgraichen{ 369111781Sgad int ch; 37059003Shm char *p; 37113244Sgraichen 372111781Sgad timenow = time(NULL); 373108164Strhodes (void)strncpy(daytime, ctime(&timenow) + 4, 15); 37459003Shm daytime[15] = '\0'; 37513244Sgraichen 37659003Shm /* Let's get our hostname */ 377111781Sgad (void)gethostname(hostname, sizeof(hostname)); 37813244Sgraichen 37913244Sgraichen /* Truncate domain */ 380111781Sgad if ((p = strchr(hostname, '.')) != NULL) 38113244Sgraichen *p = '\0'; 382111768Sgad 383111768Sgad /* Parse command line options. */ 384111781Sgad while ((ch = getopt(argc, argv, "a:f:nrsvFR:")) != -1) 385111781Sgad switch (ch) { 38659004Shm case 'a': 38759004Shm archtodir++; 38859004Shm archdirname = optarg; 38959004Shm break; 390111768Sgad case 'f': 391111768Sgad conf = optarg; 392111768Sgad break; 393111768Sgad case 'n': 394111768Sgad noaction++; 395111768Sgad break; 39659003Shm case 'r': 39759003Shm needroot = 0; 39859003Shm break; 399111768Sgad case 's': 400111768Sgad nosignal = 1; 401111768Sgad break; 40259003Shm case 'v': 40359003Shm verbose++; 40459003Shm break; 40534584Spst case 'F': 40634584Spst force++; 40734584Spst break; 408111772Sgad case 'R': 409111772Sgad rotatereq++; 410111772Sgad requestor = strdup(optarg); 411111772Sgad break; 412111781Sgad case 'm': /* Used by OpenBSD for "monitor mode" */ 41359003Shm default: 41459003Shm usage(); 415111768Sgad /* NOTREACHED */ 41659003Shm } 417111772Sgad 418111772Sgad if (rotatereq) { 419111772Sgad if (optind == argc) { 420111772Sgad warnx("At least one filename must be given when -R is specified."); 421111772Sgad usage(); 422111772Sgad /* NOTREACHED */ 423111772Sgad } 424111772Sgad /* Make sure "requestor" value is safe for a syslog message. */ 425111772Sgad for (p = requestor; *p != '\0'; p++) { 426111772Sgad if (!isprintch(*p) && (*p != '\t')) 427111772Sgad *p = '.'; 428111772Sgad } 429111772Sgad } 43043071Swollman} 43113244Sgraichen 43259004Shmstatic void 43359004Shmusage(void) 43413244Sgraichen{ 43580646Sobrien 43680646Sobrien fprintf(stderr, 437111772Sgad "usage: newsyslog [-Fnrsv] [-a directory] [-f config-file]\n" 438111772Sgad " [ [-R requestor] filename ... ]\n"); 43959003Shm exit(1); 44013244Sgraichen} 44113244Sgraichen 44259004Shm/* 443111773Sgad * Parse a configuration file and return a linked list of all the logs 444111773Sgad * which should be processed. 44513244Sgraichen */ 44659003Shmstatic struct conf_entry * 447111773Sgadget_worklist(char **files) 44813244Sgraichen{ 44959003Shm FILE *f; 450111773Sgad const char *fname; 451111773Sgad char **given; 452111773Sgad struct conf_entry *defconf, *dupent, *ent, *firstnew; 453111773Sgad struct conf_entry *newlist, *worklist; 454111773Sgad int gmatch; 455111773Sgad 456111773Sgad defconf = worklist = NULL; 457111773Sgad 458111773Sgad fname = conf; 459111773Sgad if (fname == NULL) 460111773Sgad fname = _PATH_CONF; 461111773Sgad 462111773Sgad if (strcmp(fname, "-") != 0) 463111773Sgad f = fopen(fname, "r"); 464111773Sgad else { 465111773Sgad f = stdin; 466111773Sgad fname = "<stdin>"; 467111773Sgad } 468111773Sgad if (!f) 469111773Sgad err(1, "%s", conf); 470111773Sgad 471111773Sgad parse_file(f, fname, &worklist, &defconf); 472111773Sgad (void) fclose(f); 473111773Sgad 474111773Sgad /* 475111773Sgad * All config-file information has been read in and turned into 476111773Sgad * a worklist. If there were no specific files given on the run 477111773Sgad * command, then the work of this routine is done. 478111773Sgad */ 479111773Sgad if (*files == NULL) { 480111773Sgad if (defconf != NULL) 481111773Sgad free_entry(defconf); 482111773Sgad return (worklist); 483111773Sgad /* NOTREACHED */ 484111773Sgad } 485111773Sgad 486111773Sgad /* 487111773Sgad * If newsyslog was given a specific list of files to process, 488111773Sgad * it may be that some of those files were not listed in any 489111773Sgad * config file. Those unlisted files should get the default 490111773Sgad * rotation action. First, create the default-rotation action 491111773Sgad * if none was found in a system config file. 492111773Sgad */ 493111773Sgad if (defconf == NULL) { 494111773Sgad defconf = init_entry(DEFAULT_MARKER, NULL); 495111773Sgad defconf->numlogs = 3; 496111773Sgad defconf->size = 50; 497111773Sgad defconf->permissions = S_IRUSR|S_IWUSR; 498111773Sgad } 499111773Sgad 500111773Sgad /* 501111773Sgad * If newsyslog was run with a list of specific filenames, 502111773Sgad * then create a new worklist which has only those files in 503111773Sgad * it, picking up the rotation-rules for those files from 504111773Sgad * the original worklist. 505111773Sgad * 506111773Sgad * XXX - Note that this will copy multiple rules for a single 507111773Sgad * logfile, if multiple entries are an exact match for 508111773Sgad * that file. That matches the historic behavior, but do 509111773Sgad * we want to continue to allow it? If so, it should 510111773Sgad * probably be handled more intelligently. 511111773Sgad */ 512111773Sgad firstnew = newlist = NULL; 513111773Sgad for (given = files; *given; ++given) { 514111773Sgad gmatch = 0; 515111773Sgad /* 516111773Sgad * First try to find exact-matches for this given file. 517111773Sgad */ 518111773Sgad for (ent = worklist; ent; ent = ent->next) { 519111773Sgad if ((ent->flags & CE_GLOB) != 0) 520111773Sgad continue; 521111773Sgad if (strcmp(ent->log, *given) == 0) { 522111773Sgad gmatch++; 523111773Sgad dupent = init_entry(*given, ent); 524111773Sgad if (!firstnew) 525111773Sgad firstnew = dupent; 526111773Sgad else 527111773Sgad newlist->next = dupent; 528111773Sgad newlist = dupent; 529111773Sgad } 530111773Sgad } 531111773Sgad if (gmatch) { 532111773Sgad if (verbose > 2) 533111773Sgad printf("\t+ Matched entry %s\n", *given); 534111773Sgad continue; 535111773Sgad } 536111773Sgad 537111773Sgad /* 538111773Sgad * There was no exact-match for this given file, so look 539111773Sgad * for a "glob" entry which does match. 540111773Sgad */ 541111773Sgad for (ent = worklist; ent; ent = ent->next) { 542111773Sgad if ((ent->flags & CE_GLOB) == 0) 543111773Sgad continue; 544111773Sgad if (fnmatch(ent->log, *given, FNM_PATHNAME) == 0) { 545111773Sgad gmatch++; 546111773Sgad dupent = init_entry(*given, ent); 547111773Sgad if (!firstnew) 548111773Sgad firstnew = dupent; 549111773Sgad else 550111773Sgad newlist->next = dupent; 551111773Sgad newlist = dupent; 552111773Sgad /* This work entry is *not* a glob! */ 553111773Sgad dupent->flags &= ~CE_GLOB; 554111773Sgad /* Only allow a match to one glob-entry */ 555111773Sgad break; 556111773Sgad } 557111773Sgad } 558111773Sgad if (gmatch) { 559111773Sgad if (verbose > 2) 560111773Sgad printf("\t+ Matched %s via %s\n", *given, 561111773Sgad ent->log); 562111773Sgad continue; 563111773Sgad } 564111773Sgad 565111773Sgad /* 566111773Sgad * This given file was not found in any config file, so 567111773Sgad * add a worklist item based on the default entry. 568111773Sgad */ 569111773Sgad if (verbose > 2) 570111773Sgad printf("\t+ No entry matched %s (will use %s)\n", 571111773Sgad *given, DEFAULT_MARKER); 572111773Sgad dupent = init_entry(*given, defconf); 573111773Sgad if (!firstnew) 574111773Sgad firstnew = dupent; 575111773Sgad else 576111773Sgad newlist->next = dupent; 577111773Sgad /* Mark that it was *not* found in a config file */ 578111773Sgad dupent->def_cfg = 1; 579111773Sgad newlist = dupent; 580111773Sgad } 581111773Sgad 582111773Sgad /* 583111773Sgad * Free all the entries in the original work list, and then 584111773Sgad * return the new work list. 585111773Sgad */ 586111773Sgad while (worklist) { 587111773Sgad ent = worklist->next; 588111773Sgad free_entry(worklist); 589111773Sgad worklist = ent; 590111773Sgad } 591111773Sgad 592111773Sgad free_entry(defconf); 593111773Sgad return (newlist); 594111773Sgad} 595111773Sgad 596111773Sgad/* 597111773Sgad * Parse a configuration file and update a linked list of all the logs to 598111773Sgad * process. 599111773Sgad */ 600111773Sgadstatic void 601111773Sgadparse_file(FILE *cf, const char *cfname, struct conf_entry **work_p, 602111773Sgad struct conf_entry **defconf_p) 603111773Sgad{ 60459003Shm char line[BUFSIZ], *parse, *q; 605107737Ssobomax char *cp, *errline, *group; 606111773Sgad struct conf_entry *working, *worklist; 607111781Sgad struct passwd *pwd; 60859003Shm struct group *grp; 60925518Sbrian int eol; 61013244Sgraichen 611111773Sgad /* 612111773Sgad * XXX - for now, assume that only one config file will be read, 613111773Sgad * ie, this routine is only called one time. 614111773Sgad */ 615111773Sgad worklist = NULL; 61680646Sobrien 617111773Sgad while (fgets(line, BUFSIZ, cf)) { 618107737Ssobomax if ((line[0] == '\n') || (line[0] == '#') || 619107737Ssobomax (strlen(line) == 0)) 62059003Shm continue; 62159003Shm errline = strdup(line); 622107737Ssobomax for (cp = line + 1; *cp != '\0'; cp++) { 623107737Ssobomax if (*cp != '#') 624107737Ssobomax continue; 625107737Ssobomax if (*(cp - 1) == '\\') { 626107737Ssobomax strcpy(cp - 1, cp); 627107737Ssobomax cp--; 628107737Ssobomax continue; 629107737Ssobomax } 630107737Ssobomax *cp = '\0'; 631107737Ssobomax break; 632107737Ssobomax } 63360373Sdes 63460373Sdes q = parse = missing_field(sob(line), errline); 63560373Sdes parse = son(line); 63660373Sdes if (!*parse) 63780646Sobrien errx(1, "malformed line (missing fields):\n%s", 63880646Sobrien errline); 63960373Sdes *parse = '\0'; 64060373Sdes 641111388Sgad working = init_entry(q, NULL); 642111388Sgad if (strcasecmp(DEFAULT_MARKER, q) == 0) { 643111773Sgad if (defconf_p == NULL) { 644111773Sgad warnx("Ignoring entry for %s in %s!", q, 645111773Sgad cfname); 646111773Sgad free_entry(working); 647111773Sgad continue; 648111773Sgad } else if (*defconf_p != NULL) { 649111388Sgad warnx("Ignoring duplicate entry for %s!", q); 650111388Sgad free_entry(working); 651111388Sgad continue; 652111388Sgad } 653111773Sgad *defconf_p = working; 65459003Shm } else { 655111773Sgad if (!*work_p) 656111773Sgad *work_p = working; 657111388Sgad else 658111388Sgad worklist->next = working; 659111388Sgad worklist = working; 66059003Shm } 66113244Sgraichen 66259003Shm q = parse = missing_field(sob(++parse), errline); 66359003Shm parse = son(parse); 66425518Sbrian if (!*parse) 66580646Sobrien errx(1, "malformed line (missing fields):\n%s", 66680646Sobrien errline); 66759003Shm *parse = '\0'; 66859003Shm if ((group = strchr(q, ':')) != NULL || 66959003Shm (group = strrchr(q, '.')) != NULL) { 67059003Shm *group++ = '\0'; 67159003Shm if (*q) { 67259003Shm if (!(isnumber(*q))) { 673111781Sgad if ((pwd = getpwnam(q)) == NULL) 67459003Shm errx(1, 67580646Sobrien "error in config file; unknown user:\n%s", 67659003Shm errline); 677111781Sgad working->uid = pwd->pw_uid; 67859003Shm } else 67959003Shm working->uid = atoi(q); 68059003Shm } else 681111779Sgad working->uid = (uid_t)-1; 68213244Sgraichen 68359003Shm q = group; 68459003Shm if (*q) { 68559003Shm if (!(isnumber(*q))) { 68659003Shm if ((grp = getgrnam(q)) == NULL) 68759003Shm errx(1, 68880646Sobrien "error in config file; unknown group:\n%s", 68959003Shm errline); 69059003Shm working->gid = grp->gr_gid; 69159003Shm } else 69259003Shm working->gid = atoi(q); 69359003Shm } else 694111779Sgad working->gid = (gid_t)-1; 69513244Sgraichen 69659003Shm q = parse = missing_field(sob(++parse), errline); 69759003Shm parse = son(parse); 69859003Shm if (!*parse) 69980646Sobrien errx(1, "malformed line (missing fields):\n%s", 70080646Sobrien errline); 70159003Shm *parse = '\0'; 702111779Sgad } else { 703111779Sgad working->uid = (uid_t)-1; 704111779Sgad working->gid = (gid_t)-1; 705111779Sgad } 70659003Shm 70759003Shm if (!sscanf(q, "%o", &working->permissions)) 70859003Shm errx(1, "error in config file; bad permissions:\n%s", 70959003Shm errline); 71059003Shm 71159003Shm q = parse = missing_field(sob(++parse), errline); 71259003Shm parse = son(parse); 71325518Sbrian if (!*parse) 71480646Sobrien errx(1, "malformed line (missing fields):\n%s", 71580646Sobrien errline); 71659003Shm *parse = '\0'; 717111400Sgad if (!sscanf(q, "%d", &working->numlogs) || working->numlogs < 0) 718111400Sgad errx(1, "error in config file; bad value for count of logs to save:\n%s", 71959003Shm errline); 72013244Sgraichen 72159003Shm q = parse = missing_field(sob(++parse), errline); 72259003Shm parse = son(parse); 72325518Sbrian if (!*parse) 72480646Sobrien errx(1, "malformed line (missing fields):\n%s", 72580646Sobrien errline); 72659003Shm *parse = '\0'; 72759003Shm if (isdigit(*q)) 72859003Shm working->size = atoi(q); 72959003Shm else 73059003Shm working->size = -1; 73159003Shm 73259003Shm working->flags = 0; 73359003Shm q = parse = missing_field(sob(++parse), errline); 73459003Shm parse = son(parse); 73525518Sbrian eol = !*parse; 73659003Shm *parse = '\0'; 73743071Swollman { 73859003Shm char *ep; 73959003Shm u_long ul; 74013244Sgraichen 74143071Swollman ul = strtoul(q, &ep, 10); 74243071Swollman if (ep == q) 74343071Swollman working->hours = 0; 74443071Swollman else if (*ep == '*') 74543071Swollman working->hours = -1; 74643071Swollman else if (ul > INT_MAX) 74743071Swollman errx(1, "interval is too large:\n%s", errline); 74843071Swollman else 74943071Swollman working->hours = ul; 75043071Swollman 75180646Sobrien if (*ep != '\0' && *ep != '@' && *ep != '*' && 75280646Sobrien *ep != '$') 75343071Swollman errx(1, "malformed interval/at:\n%s", errline); 75443071Swollman if (*ep == '@') { 75593659Scjc if ((working->trim_at = parse8601(ep + 1, errline)) 75659003Shm == (time_t) - 1) 75743071Swollman errx(1, "malformed at:\n%s", errline); 75843071Swollman working->flags |= CE_TRIMAT; 75959004Shm } else if (*ep == '$') { 76093659Scjc if ((working->trim_at = parseDWM(ep + 1, errline)) 76159004Shm == (time_t) - 1) 76259004Shm errx(1, "malformed at:\n%s", errline); 76359004Shm working->flags |= CE_TRIMAT; 76443071Swollman } 76543071Swollman } 76643071Swollman 76725518Sbrian if (eol) 76859003Shm q = NULL; 76925518Sbrian else { 77059003Shm q = parse = sob(++parse); /* Optional field */ 77159003Shm parse = son(parse); 77259003Shm if (!*parse) 77359003Shm eol = 1; 77459003Shm *parse = '\0'; 77525518Sbrian } 77625443Sache 777111768Sgad for (; q && *q && !isspacech(*q); q++) { 778111768Sgad switch (tolowerch(*q)) { 779111768Sgad case 'b': 78059003Shm working->flags |= CE_BINARY; 781111768Sgad break; 782111781Sgad case 'c': /* Used by NetBSD for "CE_CREATE" */ 783111768Sgad /* 784111768Sgad * netbsd uses 'c' for "create". We will 785111768Sgad * temporarily accept it for 'g', because 786111768Sgad * earlier freebsd versions had a typo 787111768Sgad * of ('G' || 'c')... 788111768Sgad */ 789111768Sgad warnx("Assuming 'g' for 'c' in flags for line:\n%s", 790111768Sgad errline); 791111768Sgad /* FALLTHROUGH */ 792111768Sgad case 'g': 793106905Ssobomax working->flags |= CE_GLOB; 794111768Sgad break; 795111768Sgad case 'j': 796111768Sgad working->flags |= CE_BZCOMPACT; 797111768Sgad break; 798111768Sgad case 'n': 799111768Sgad working->flags |= CE_NOSIGNAL; 800111768Sgad break; 801111768Sgad case 'w': 802107916Ssobomax working->flags |= CE_COMPACTWAIT; 803111768Sgad break; 804111768Sgad case 'z': 805111768Sgad working->flags |= CE_COMPACT; 806111768Sgad break; 807111768Sgad case '-': 808111768Sgad break; 809111781Sgad case 'f': /* Used by OpenBSD for "CE_FOLLOW" */ 810111781Sgad case 'm': /* Used by OpenBSD for "CE_MONITOR" */ 811111781Sgad case 'p': /* Used by NetBSD for "CE_PLAIN0" */ 812111768Sgad default: 81380646Sobrien errx(1, "illegal flag in config file -- %c", 81480646Sobrien *q); 815111768Sgad } 81659003Shm } 81759003Shm 81825518Sbrian if (eol) 81959003Shm q = NULL; 82025518Sbrian else { 82159003Shm q = parse = sob(++parse); /* Optional field */ 82259003Shm parse = son(parse); 82359003Shm if (!*parse) 82459003Shm eol = 1; 82559003Shm *parse = '\0'; 82625518Sbrian } 82725443Sache 82825443Sache working->pid_file = NULL; 82925443Sache if (q && *q) { 83025443Sache if (*q == '/') 83125443Sache working->pid_file = strdup(q); 83236817Sache else if (isdigit(*q)) 83336817Sache goto got_sig; 83459003Shm else 83580646Sobrien errx(1, 83680646Sobrien "illegal pid file or signal number in config file:\n%s", 83780646Sobrien errline); 83825443Sache } 83936817Sache if (eol) 84059003Shm q = NULL; 84136817Sache else { 84259003Shm q = parse = sob(++parse); /* Optional field */ 84359003Shm *(parse = son(parse)) = '\0'; 84436817Sache } 84536817Sache 84636817Sache working->sig = SIGHUP; 84736817Sache if (q && *q) { 84836817Sache if (isdigit(*q)) { 84959003Shm got_sig: 85036817Sache working->sig = atoi(q); 85136817Sache } else { 85259003Shm err_sig: 85380646Sobrien errx(1, 85480646Sobrien "illegal signal number in config file:\n%s", 85580646Sobrien errline); 85636817Sache } 85736817Sache if (working->sig < 1 || working->sig >= NSIG) 85836817Sache goto err_sig; 85936817Sache } 860111768Sgad 861111768Sgad /* 862111768Sgad * Finish figuring out what pid-file to use (if any) in 863111768Sgad * later processing if this logfile needs to be rotated. 864111768Sgad */ 865111768Sgad if ((working->flags & CE_NOSIGNAL) == CE_NOSIGNAL) { 866111768Sgad /* 867111768Sgad * This config-entry specified 'n' for nosignal, 868111768Sgad * see if it also specified an explicit pid_file. 869111768Sgad * This would be a pretty pointless combination. 870111768Sgad */ 871111768Sgad if (working->pid_file != NULL) { 872111768Sgad warnx("Ignoring '%s' because flag 'n' was specified in line:\n%s", 873111768Sgad working->pid_file, errline); 874111768Sgad free(working->pid_file); 875111768Sgad working->pid_file = NULL; 876111768Sgad } 877111768Sgad } else if (working->pid_file == NULL) { 878111768Sgad /* 879111768Sgad * This entry did not specify the 'n' flag, which 880111768Sgad * means it should signal syslogd unless it had 881111768Sgad * specified some other pid-file. But we only 882111768Sgad * try to notify syslog if we are root 883111768Sgad */ 884111768Sgad if (needroot) 885111768Sgad working->pid_file = strdup(_PATH_SYSLOGPID); 886111768Sgad } 887111768Sgad 88859003Shm free(errline); 889111768Sgad errline = NULL; 89059003Shm } 89113244Sgraichen} 89213244Sgraichen 89359003Shmstatic char * 89459004Shmmissing_field(char *p, char *errline) 89513244Sgraichen{ 89680646Sobrien 89759003Shm if (!p || !*p) 89859003Shm errx(1, "missing field in config file:\n%s", errline); 89959003Shm return (p); 90013244Sgraichen} 90113244Sgraichen 90259004Shmstatic void 903111780Sgaddotrim(const struct conf_entry *ent, char *log, int numdays, int flags) 90413244Sgraichen{ 90571299Sjedgar char dirpart[MAXPATHLEN], namepart[MAXPATHLEN]; 90671299Sjedgar char file1[MAXPATHLEN], file2[MAXPATHLEN]; 90771299Sjedgar char zfile1[MAXPATHLEN], zfile2[MAXPATHLEN]; 90880638Sobrien char jfile1[MAXPATHLEN]; 90994352Ssheldonh char tfile[MAXPATHLEN]; 91059003Shm int notified, need_notification, fd, _numdays; 91159003Shm struct stat st; 91259003Shm pid_t pid; 91313244Sgraichen 91459004Shm if (archtodir) { 91559004Shm char *p; 91613244Sgraichen 91759004Shm /* build complete name of archive directory into dirpart */ 91859004Shm if (*archdirname == '/') { /* absolute */ 91971299Sjedgar strlcpy(dirpart, archdirname, sizeof(dirpart)); 92059004Shm } else { /* relative */ 92159004Shm /* get directory part of logfile */ 92271299Sjedgar strlcpy(dirpart, log, sizeof(dirpart)); 92359004Shm if ((p = rindex(dirpart, '/')) == NULL) 92459004Shm dirpart[0] = '\0'; 92559004Shm else 92659004Shm *(p + 1) = '\0'; 92771299Sjedgar strlcat(dirpart, archdirname, sizeof(dirpart)); 92859004Shm } 92959004Shm 93059004Shm /* check if archive directory exists, if not, create it */ 93159004Shm if (lstat(dirpart, &st)) 93259004Shm createdir(dirpart); 93359004Shm 93459004Shm /* get filename part of logfile */ 93559004Shm if ((p = rindex(log, '/')) == NULL) 93671299Sjedgar strlcpy(namepart, log, sizeof(namepart)); 93759004Shm else 93871299Sjedgar strlcpy(namepart, p + 1, sizeof(namepart)); 93959004Shm 94059004Shm /* name of oldest log */ 94180646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s.%d", dirpart, 94280646Sobrien namepart, numdays); 94371299Sjedgar (void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1, 94471299Sjedgar COMPRESS_POSTFIX); 94580638Sobrien snprintf(jfile1, sizeof(jfile1), "%s%s", file1, 94680638Sobrien BZCOMPRESS_POSTFIX); 94759004Shm } else { 94859004Shm /* name of oldest log */ 94971299Sjedgar (void) snprintf(file1, sizeof(file1), "%s.%d", log, numdays); 95071299Sjedgar (void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1, 95171299Sjedgar COMPRESS_POSTFIX); 95280638Sobrien snprintf(jfile1, sizeof(jfile1), "%s%s", file1, 95380638Sobrien BZCOMPRESS_POSTFIX); 95459004Shm } 95559004Shm 95659003Shm if (noaction) { 95759003Shm printf("rm -f %s\n", file1); 95859003Shm printf("rm -f %s\n", zfile1); 95980638Sobrien printf("rm -f %s\n", jfile1); 96059003Shm } else { 96159003Shm (void) unlink(file1); 96259003Shm (void) unlink(zfile1); 96380638Sobrien (void) unlink(jfile1); 96459003Shm } 96513244Sgraichen 96659003Shm /* Move down log files */ 96718188Sjkh _numdays = numdays; /* preserve */ 96859003Shm while (numdays--) { 96959004Shm 97071299Sjedgar (void) strlcpy(file2, file1, sizeof(file2)); 97159004Shm 97259004Shm if (archtodir) 97380646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s.%d", 97480646Sobrien dirpart, namepart, numdays); 97559004Shm else 97680646Sobrien (void) snprintf(file1, sizeof(file1), "%s.%d", log, 97780646Sobrien numdays); 97859004Shm 97971299Sjedgar (void) strlcpy(zfile1, file1, sizeof(zfile1)); 98071299Sjedgar (void) strlcpy(zfile2, file2, sizeof(zfile2)); 98159003Shm if (lstat(file1, &st)) { 98280646Sobrien (void) strlcat(zfile1, COMPRESS_POSTFIX, 98380646Sobrien sizeof(zfile1)); 98480646Sobrien (void) strlcat(zfile2, COMPRESS_POSTFIX, 98580646Sobrien sizeof(zfile2)); 98680638Sobrien if (lstat(zfile1, &st)) { 98780638Sobrien strlcpy(zfile1, file1, sizeof(zfile1)); 98880638Sobrien strlcpy(zfile2, file2, sizeof(zfile2)); 98980638Sobrien strlcat(zfile1, BZCOMPRESS_POSTFIX, 99080638Sobrien sizeof(zfile1)); 99180638Sobrien strlcat(zfile2, BZCOMPRESS_POSTFIX, 99280638Sobrien sizeof(zfile2)); 99380638Sobrien if (lstat(zfile1, &st)) 99480638Sobrien continue; 99580638Sobrien } 99659003Shm } 99759003Shm if (noaction) { 99859003Shm printf("mv %s %s\n", zfile1, zfile2); 999111780Sgad printf("chmod %o %s\n", ent->permissions, zfile2); 1000111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1001111779Sgad printf("chown %u:%u %s\n", 1002111779Sgad ent->uid, ent->gid, zfile2); 100359003Shm } else { 100459003Shm (void) rename(zfile1, zfile2); 1005111780Sgad if (chmod(zfile2, ent->permissions)) 1006111780Sgad warn("can't chmod %s", file2); 1007111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1008111779Sgad if (chown(zfile2, ent->uid, ent->gid)) 1009111779Sgad warn("can't chown %s", zfile2); 101059003Shm } 101159003Shm } 1012111388Sgad if (!noaction && !(flags & CE_BINARY)) { 1013111388Sgad /* Report the trimming to the old log */ 1014111779Sgad (void) log_trim(log, ent); 1015111388Sgad } 101613244Sgraichen 101718188Sjkh if (!_numdays) { 101818075Sjkh if (noaction) 101959003Shm printf("rm %s\n", log); 102018075Sjkh else 102159003Shm (void) unlink(log); 102259003Shm } else { 102318075Sjkh if (noaction) 102459003Shm printf("mv %s to %s\n", log, file1); 102559004Shm else { 102659004Shm if (archtodir) 1027111780Sgad movefile(log, file1, ent->permissions, ent->uid, 1028111779Sgad ent->gid); 102959004Shm else 103059004Shm (void) rename(log, file1); 103159004Shm } 103218075Sjkh } 103318075Sjkh 1034111781Sgad /* Now move the new log file into place */ 103559003Shm if (noaction) 1036111781Sgad printf("Start new log...\n"); 103759003Shm else { 103894352Ssheldonh strlcpy(tfile, log, sizeof(tfile)); 103994352Ssheldonh strlcat(tfile, ".XXXXXX", sizeof(tfile)); 104094352Ssheldonh mkstemp(tfile); 1041111780Sgad fd = creat(tfile, ent->permissions); 104259003Shm if (fd < 0) 104359003Shm err(1, "can't start new log"); 1044111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1045111779Sgad if (fchown(fd, ent->uid, ent->gid)) 1046111779Sgad err(1, "can't chown new log file"); 104759003Shm (void) close(fd); 1048111388Sgad if (!(flags & CE_BINARY)) { 1049111388Sgad /* Add status message to new log file */ 1050111779Sgad if (log_trim(tfile, ent)) 105159003Shm err(1, "can't add status message to log"); 1052111388Sgad } 105359003Shm } 105459003Shm if (noaction) 1055111780Sgad printf("chmod %o %s...\n", ent->permissions, log); 105694352Ssheldonh else { 1057111780Sgad (void) chmod(tfile, ent->permissions); 105894352Ssheldonh if (rename(tfile, log) < 0) { 105994352Ssheldonh err(1, "can't start new log"); 106094352Ssheldonh (void) unlink(tfile); 106194352Ssheldonh } 106294352Ssheldonh } 106325443Sache 1064111966Sgad /* 1065111966Sgad * Find out if there is a process to signal. If nosignal (-s) was 1066111966Sgad * specified, then do not signal any process. Note that nosignal 1067111966Sgad * will trigger a warning message if the rotated logfile needs to 1068111966Sgad * be compressed, *unless* -R was specified. This is because there 1069111966Sgad * presumably still are process(es) writing to the old logfile, but 1070111966Sgad * we assume that a -sR request comes from a process which writes 1071111966Sgad * to the logfile, and as such, that process has already made sure 1072111966Sgad * that the logfile is not presently in use. 1073111966Sgad */ 107425443Sache pid = 0; 107525443Sache need_notification = notified = 0; 1076111779Sgad if (ent->pid_file != NULL) { 107725443Sache need_notification = 1; 1078111966Sgad if (!nosignal) 1079111966Sgad pid = get_pid(ent->pid_file); /* the normal case! */ 1080111966Sgad else if (rotatereq) 1081111966Sgad need_notification = 0; 108225443Sache } 108325443Sache if (pid) { 108425443Sache if (noaction) { 108525443Sache notified = 1; 1086111780Sgad printf("kill -%d %d\n", ent->sig, (int) pid); 1087111780Sgad } else if (kill(pid, ent->sig)) 108859003Shm warn("can't notify daemon, pid %d", (int) pid); 108925443Sache else { 109025443Sache notified = 1; 109125443Sache if (verbose) 109259003Shm printf("daemon pid %d notified\n", (int) pid); 109325443Sache } 109425443Sache } 109580638Sobrien if ((flags & CE_COMPACT) || (flags & CE_BZCOMPACT)) { 109625443Sache if (need_notification && !notified) 109780646Sobrien warnx( 109880646Sobrien "log %s not compressed because daemon not notified", 109980646Sobrien log); 110025443Sache else if (noaction) 110159003Shm printf("Compress %s.0\n", log); 110225443Sache else { 110325443Sache if (notified) { 110425443Sache if (verbose) 110525443Sache printf("small pause to allow daemon to close log\n"); 110631460Sache sleep(10); 110725443Sache } 110859004Shm if (archtodir) { 110980646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s", 111080646Sobrien dirpart, namepart); 111180638Sobrien if (flags & CE_COMPACT) 1112107916Ssobomax compress_log(file1, 1113107916Ssobomax flags & CE_COMPACTWAIT); 111480638Sobrien else if (flags & CE_BZCOMPACT) 1115107916Ssobomax bzcompress_log(file1, 1116107916Ssobomax flags & CE_COMPACTWAIT); 111759004Shm } else { 111880638Sobrien if (flags & CE_COMPACT) 1119107916Ssobomax compress_log(log, 1120107916Ssobomax flags & CE_COMPACTWAIT); 112180638Sobrien else if (flags & CE_BZCOMPACT) 1122107916Ssobomax bzcompress_log(log, 1123107916Ssobomax flags & CE_COMPACTWAIT); 112459004Shm } 112525443Sache } 112659003Shm } 112713244Sgraichen} 112813244Sgraichen 112913244Sgraichen/* Log the fact that the logs were turned over */ 113059004Shmstatic int 1131111768Sgadlog_trim(const char *log, const struct conf_entry *log_ent) 113213244Sgraichen{ 113359003Shm FILE *f; 1134111388Sgad const char *xtra; 113559003Shm 113659003Shm if ((f = fopen(log, "a")) == NULL) 113759003Shm return (-1); 1138111388Sgad xtra = ""; 1139111768Sgad if (log_ent->def_cfg) 1140111388Sgad xtra = " using <default> rule"; 1141111772Sgad if (log_ent->r_reason != NULL) 1142111772Sgad fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s%s\n", 1143111772Sgad daytime, hostname, (int) getpid(), log_ent->r_reason, xtra); 1144111772Sgad else 1145111772Sgad fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s\n", 1146111772Sgad daytime, hostname, (int) getpid(), xtra); 114759003Shm if (fclose(f) == EOF) 114859003Shm err(1, "log_trim: fclose:"); 114959003Shm return (0); 115013244Sgraichen} 115113244Sgraichen 115259004Shm/* Fork of gzip to compress the old log file */ 115359004Shmstatic void 1154107916Ssobomaxcompress_log(char *log, int dowait) 115513244Sgraichen{ 115659003Shm pid_t pid; 115771299Sjedgar char tmp[MAXPATHLEN]; 115859003Shm 1159107916Ssobomax while (dowait && (wait(NULL) > 0 || errno == EINTR)) 1160107916Ssobomax ; 116171299Sjedgar (void) snprintf(tmp, sizeof(tmp), "%s.0", log); 116225443Sache pid = fork(); 116359003Shm if (pid < 0) 116480638Sobrien err(1, "gzip fork"); 116559003Shm else if (!pid) { 116679452Sbrian (void) execl(_PATH_GZIP, _PATH_GZIP, "-f", tmp, (char *)0); 116743071Swollman err(1, _PATH_GZIP); 116859003Shm } 116913244Sgraichen} 117013244Sgraichen 117180638Sobrien/* Fork of bzip2 to compress the old log file */ 117280638Sobrienstatic void 1173107916Ssobomaxbzcompress_log(char *log, int dowait) 117480638Sobrien{ 117580638Sobrien pid_t pid; 117680638Sobrien char tmp[MAXPATHLEN]; 117780638Sobrien 1178107916Ssobomax while (dowait && (wait(NULL) > 0 || errno == EINTR)) 1179107916Ssobomax ; 118080638Sobrien snprintf(tmp, sizeof(tmp), "%s.0", log); 118180638Sobrien pid = fork(); 118280638Sobrien if (pid < 0) 118380638Sobrien err(1, "bzip2 fork"); 118480638Sobrien else if (!pid) { 118586360Sobrien execl(_PATH_BZIP2, _PATH_BZIP2, "-f", tmp, (char *)0); 118680638Sobrien err(1, _PATH_BZIP2); 118780638Sobrien } 118880638Sobrien} 118980638Sobrien 119013244Sgraichen/* Return size in kilobytes of a file */ 119159004Shmstatic int 119259004Shmsizefile(char *file) 119313244Sgraichen{ 119459003Shm struct stat sb; 119513244Sgraichen 119659003Shm if (stat(file, &sb) < 0) 119759003Shm return (-1); 119859003Shm return (kbytes(dbtob(sb.st_blocks))); 119913244Sgraichen} 120013244Sgraichen 120113244Sgraichen/* Return the age of old log file (file.0) */ 120259004Shmstatic int 120359004Shmage_old_log(char *file) 120413244Sgraichen{ 120559003Shm struct stat sb; 120659003Shm char tmp[MAXPATHLEN + sizeof(".0") + sizeof(COMPRESS_POSTFIX) + 1]; 120713244Sgraichen 120859004Shm if (archtodir) { 120959004Shm char *p; 121059004Shm 121159004Shm /* build name of archive directory into tmp */ 121259004Shm if (*archdirname == '/') { /* absolute */ 121371299Sjedgar strlcpy(tmp, archdirname, sizeof(tmp)); 121459004Shm } else { /* relative */ 121559004Shm /* get directory part of logfile */ 121671299Sjedgar strlcpy(tmp, file, sizeof(tmp)); 121759004Shm if ((p = rindex(tmp, '/')) == NULL) 121859004Shm tmp[0] = '\0'; 121959004Shm else 122059004Shm *(p + 1) = '\0'; 122171299Sjedgar strlcat(tmp, archdirname, sizeof(tmp)); 122259004Shm } 122359004Shm 122471299Sjedgar strlcat(tmp, "/", sizeof(tmp)); 122559004Shm 122659004Shm /* get filename part of logfile */ 122759004Shm if ((p = rindex(file, '/')) == NULL) 122871299Sjedgar strlcat(tmp, file, sizeof(tmp)); 122959004Shm else 123071299Sjedgar strlcat(tmp, p + 1, sizeof(tmp)); 123159004Shm } else { 123271299Sjedgar (void) strlcpy(tmp, file, sizeof(tmp)); 123359004Shm } 123459004Shm 123559003Shm if (stat(strcat(tmp, ".0"), &sb) < 0) 123659003Shm if (stat(strcat(tmp, COMPRESS_POSTFIX), &sb) < 0) 123759003Shm return (-1); 1238111781Sgad return ((int)(timenow - sb.st_mtime + 1800) / 3600); 123913244Sgraichen} 124013244Sgraichen 124159004Shmstatic pid_t 124280640Sobrienget_pid(const char *pid_file) 124325443Sache{ 124425443Sache FILE *f; 124559003Shm char line[BUFSIZ]; 124625443Sache pid_t pid = 0; 124713244Sgraichen 124859003Shm if ((f = fopen(pid_file, "r")) == NULL) 124925443Sache warn("can't open %s pid file to restart a daemon", 125059003Shm pid_file); 125125443Sache else { 125259003Shm if (fgets(line, BUFSIZ, f)) { 125325443Sache pid = atol(line); 125425443Sache if (pid < MIN_PID || pid > MAX_PID) { 125580646Sobrien warnx("preposterous process number: %d", 125680646Sobrien (int)pid); 125725443Sache pid = 0; 125825443Sache } 125925443Sache } else 126025443Sache warn("can't read %s pid file to restart a daemon", 126159003Shm pid_file); 126259003Shm (void) fclose(f); 126325443Sache } 1264111392Sgad return (pid); 126525443Sache} 126625443Sache 126713244Sgraichen/* Skip Over Blanks */ 1268111820Sgadstatic char * 126959004Shmsob(char *p) 127013244Sgraichen{ 127159003Shm while (p && *p && isspace(*p)) 127259003Shm p++; 127359003Shm return (p); 127413244Sgraichen} 127513244Sgraichen 127613244Sgraichen/* Skip Over Non-Blanks */ 1277111820Sgadstatic char * 127859004Shmson(char *p) 127913244Sgraichen{ 128059003Shm while (p && *p && !isspace(*p)) 128159003Shm p++; 128259003Shm return (p); 128313244Sgraichen} 128443071Swollman 128543071Swollman/* 128659004Shm * Parse a limited subset of ISO 8601. The specific format is as follows: 128743071Swollman * 128859004Shm * [CC[YY[MM[DD]]]][THH[MM[SS]]] (where `T' is the literal letter) 128943071Swollman * 129059004Shm * We don't accept a timezone specification; missing fields (including timezone) 129159004Shm * are defaulted to the current date but time zero. 129243071Swollman */ 129343071Swollmanstatic time_t 129493659Scjcparse8601(char *s, char *errline) 129543071Swollman{ 129659003Shm char *t; 129793659Scjc time_t tsecs; 129859003Shm struct tm tm, *tmp; 129959003Shm u_long ul; 130043071Swollman 130143071Swollman tmp = localtime(&timenow); 130243071Swollman tm = *tmp; 130343071Swollman 130443071Swollman tm.tm_hour = tm.tm_min = tm.tm_sec = 0; 130543071Swollman 130643071Swollman ul = strtoul(s, &t, 10); 130743071Swollman if (*t != '\0' && *t != 'T') 1308111392Sgad return (-1); 130943071Swollman 131043071Swollman /* 131159003Shm * Now t points either to the end of the string (if no time was 131259003Shm * provided) or to the letter `T' which separates date and time in 131359003Shm * ISO 8601. The pointer arithmetic is the same for either case. 131443071Swollman */ 131543071Swollman switch (t - s) { 131643071Swollman case 8: 131743071Swollman tm.tm_year = ((ul / 1000000) - 19) * 100; 131843071Swollman ul = ul % 1000000; 131943071Swollman case 6: 132080666Swollman tm.tm_year -= tm.tm_year % 100; 132143071Swollman tm.tm_year += ul / 10000; 132243071Swollman ul = ul % 10000; 132343071Swollman case 4: 132443071Swollman tm.tm_mon = (ul / 100) - 1; 132543071Swollman ul = ul % 100; 132643071Swollman case 2: 132743071Swollman tm.tm_mday = ul; 132843071Swollman case 0: 132943071Swollman break; 133043071Swollman default: 1331111392Sgad return (-1); 133243071Swollman } 133343071Swollman 133443071Swollman /* sanity check */ 133543071Swollman if (tm.tm_year < 70 || tm.tm_mon < 0 || tm.tm_mon > 12 133643071Swollman || tm.tm_mday < 1 || tm.tm_mday > 31) 1337111392Sgad return (-1); 133843071Swollman 133943071Swollman if (*t != '\0') { 134043071Swollman s = ++t; 134143071Swollman ul = strtoul(s, &t, 10); 134243071Swollman if (*t != '\0' && !isspace(*t)) 1343111392Sgad return (-1); 134443071Swollman 134543071Swollman switch (t - s) { 134643071Swollman case 6: 134743071Swollman tm.tm_sec = ul % 100; 134843071Swollman ul /= 100; 134943071Swollman case 4: 135043071Swollman tm.tm_min = ul % 100; 135143071Swollman ul /= 100; 135243071Swollman case 2: 135343071Swollman tm.tm_hour = ul; 135443071Swollman case 0: 135543071Swollman break; 135643071Swollman default: 1357111392Sgad return (-1); 135843071Swollman } 135943071Swollman 136043071Swollman /* sanity check */ 136143071Swollman if (tm.tm_sec < 0 || tm.tm_sec > 60 || tm.tm_min < 0 136243071Swollman || tm.tm_min > 59 || tm.tm_hour < 0 || tm.tm_hour > 23) 1363111392Sgad return (-1); 136443071Swollman } 136593659Scjc if ((tsecs = mktime(&tm)) == -1) 136699209Smaxim errx(1, "nonexistent time:\n%s", errline); 1367111392Sgad return (tsecs); 136843071Swollman} 136959004Shm 137059004Shm/* physically move file */ 137159004Shmstatic void 1372111779Sgadmovefile(char *from, char *to, int perm, uid_t owner_uid, gid_t group_gid) 137359004Shm{ 137459004Shm FILE *src, *dst; 137559004Shm int c; 137659004Shm 137759004Shm if ((src = fopen(from, "r")) == NULL) 137859004Shm err(1, "can't fopen %s for reading", from); 137959004Shm if ((dst = fopen(to, "w")) == NULL) 138059004Shm err(1, "can't fopen %s for writing", to); 1381111779Sgad if (owner_uid != (uid_t)-1 || group_gid != (gid_t)-1) { 1382111779Sgad if (fchown(fileno(dst), owner_uid, group_gid)) 1383111779Sgad err(1, "can't fchown %s", to); 1384111779Sgad } 138559004Shm if (fchmod(fileno(dst), perm)) 138659004Shm err(1, "can't fchmod %s", to); 138759004Shm 138859004Shm while ((c = getc(src)) != EOF) { 138959004Shm if ((putc(c, dst)) == EOF) 139059004Shm err(1, "error writing to %s", to); 139159004Shm } 139259004Shm 139359004Shm if (ferror(src)) 139459004Shm err(1, "error reading from %s", from); 139559004Shm if ((fclose(src)) != 0) 139659004Shm err(1, "can't fclose %s", to); 139759004Shm if ((fclose(dst)) != 0) 139859004Shm err(1, "can't fclose %s", from); 139959004Shm if ((unlink(from)) != 0) 140059004Shm err(1, "can't unlink %s", from); 140159004Shm} 140259004Shm 140359004Shm/* create one or more directory components of a path */ 140459004Shmstatic void 140559004Shmcreatedir(char *dirpart) 140659004Shm{ 1407111398Sgad int res; 140859004Shm char *s, *d; 140971299Sjedgar char mkdirpath[MAXPATHLEN]; 141059004Shm struct stat st; 141159004Shm 141259004Shm s = dirpart; 141359004Shm d = mkdirpath; 141459004Shm 141559004Shm for (;;) { 141659004Shm *d++ = *s++; 1417111398Sgad if (*s != '/' && *s != '\0') 1418111398Sgad continue; 1419111398Sgad *d = '\0'; 1420111398Sgad res = lstat(mkdirpath, &st); 1421111398Sgad if (res != 0) { 1422111398Sgad if (noaction) { 1423111398Sgad printf("mkdir %s\n", mkdirpath); 1424111398Sgad } else { 1425111398Sgad res = mkdir(mkdirpath, 0755); 1426111398Sgad if (res != 0) 1427111398Sgad err(1, "Error on mkdir(\"%s\") for -a", 1428111398Sgad mkdirpath); 1429111398Sgad } 143059004Shm } 143159004Shm if (*s == '\0') 143259004Shm break; 143359004Shm } 1434111398Sgad if (verbose) 1435111398Sgad printf("created directory '%s' for -a\n", dirpart); 143659004Shm} 143759004Shm 143859004Shm/*- 143959004Shm * Parse a cyclic time specification, the format is as follows: 144059004Shm * 144159004Shm * [Dhh] or [Wd[Dhh]] or [Mdd[Dhh]] 144259004Shm * 144359004Shm * to rotate a logfile cyclic at 144459004Shm * 144559004Shm * - every day (D) within a specific hour (hh) (hh = 0...23) 144659004Shm * - once a week (W) at a specific day (d) OR (d = 0..6, 0 = Sunday) 144759004Shm * - once a month (M) at a specific day (d) (d = 1..31,l|L) 144859004Shm * 144959004Shm * We don't accept a timezone specification; missing fields 145059004Shm * are defaulted to the current date but time zero. 145159004Shm */ 145259004Shmstatic time_t 145393659ScjcparseDWM(char *s, char *errline) 145459004Shm{ 145559004Shm char *t; 145693659Scjc time_t tsecs; 145759004Shm struct tm tm, *tmp; 145880742Sobrien long l; 145959004Shm int nd; 146059004Shm static int mtab[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; 146159004Shm int WMseen = 0; 146259004Shm int Dseen = 0; 146359004Shm 146459004Shm tmp = localtime(&timenow); 146559004Shm tm = *tmp; 146659004Shm 146759004Shm /* set no. of days per month */ 146859004Shm 146959004Shm nd = mtab[tm.tm_mon]; 147059004Shm 147159004Shm if (tm.tm_mon == 1) { 147259004Shm if (((tm.tm_year + 1900) % 4 == 0) && 147359004Shm ((tm.tm_year + 1900) % 100 != 0) && 147459004Shm ((tm.tm_year + 1900) % 400 == 0)) { 147559004Shm nd++; /* leap year, 29 days in february */ 147659004Shm } 147759004Shm } 147859004Shm tm.tm_hour = tm.tm_min = tm.tm_sec = 0; 147959004Shm 148059004Shm for (;;) { 148159004Shm switch (*s) { 148259004Shm case 'D': 148359004Shm if (Dseen) 1484111392Sgad return (-1); 148559004Shm Dseen++; 148659004Shm s++; 148780742Sobrien l = strtol(s, &t, 10); 148880742Sobrien if (l < 0 || l > 23) 1489111392Sgad return (-1); 149080742Sobrien tm.tm_hour = l; 149159004Shm break; 149259004Shm 149359004Shm case 'W': 149459004Shm if (WMseen) 1495111392Sgad return (-1); 149659004Shm WMseen++; 149759004Shm s++; 149880742Sobrien l = strtol(s, &t, 10); 149980742Sobrien if (l < 0 || l > 6) 1500111392Sgad return (-1); 150180742Sobrien if (l != tm.tm_wday) { 150259004Shm int save; 150359004Shm 150480742Sobrien if (l < tm.tm_wday) { 150559004Shm save = 6 - tm.tm_wday; 150680742Sobrien save += (l + 1); 150759004Shm } else { 150880742Sobrien save = l - tm.tm_wday; 150959004Shm } 151059004Shm 151159004Shm tm.tm_mday += save; 151259004Shm 151359004Shm if (tm.tm_mday > nd) { 151459004Shm tm.tm_mon++; 151559004Shm tm.tm_mday = tm.tm_mday - nd; 151659004Shm } 151759004Shm } 151859004Shm break; 151959004Shm 152059004Shm case 'M': 152159004Shm if (WMseen) 1522111392Sgad return (-1); 152359004Shm WMseen++; 152459004Shm s++; 152559004Shm if (tolower(*s) == 'l') { 152659004Shm tm.tm_mday = nd; 152759004Shm s++; 152859004Shm t = s; 152959004Shm } else { 153080742Sobrien l = strtol(s, &t, 10); 153180742Sobrien if (l < 1 || l > 31) 1532111392Sgad return (-1); 153359004Shm 153480742Sobrien if (l > nd) 1535111392Sgad return (-1); 153680742Sobrien tm.tm_mday = l; 153759004Shm } 153859004Shm break; 153959004Shm 154059004Shm default: 154159004Shm return (-1); 154259004Shm break; 154359004Shm } 154459004Shm 154559004Shm if (*t == '\0' || isspace(*t)) 154659004Shm break; 154759004Shm else 154859004Shm s = t; 154959004Shm } 155093659Scjc if ((tsecs = mktime(&tm)) == -1) 155199209Smaxim errx(1, "nonexistent time:\n%s", errline); 1552111392Sgad return (tsecs); 155359004Shm} 1554