newsyslog.c revision 119102
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 26114601Sobrien#include <sys/cdefs.h> 27114601Sobrien__FBSDID("$FreeBSD: head/usr.sbin/newsyslog/newsyslog.c 119102 2003-08-19 03:53:03Z gad $"); 2813244Sgraichen 2943071Swollman#define OSF 3013244Sgraichen#ifndef COMPRESS_POSTFIX 3143071Swollman#define COMPRESS_POSTFIX ".gz" 3213244Sgraichen#endif 3380638Sobrien#ifndef BZCOMPRESS_POSTFIX 3480638Sobrien#define BZCOMPRESS_POSTFIX ".bz2" 3580638Sobrien#endif 3613244Sgraichen 3796001Smaxim#include <sys/param.h> 3896001Smaxim#include <sys/stat.h> 3996001Smaxim#include <sys/wait.h> 4096001Smaxim 4130160Scharnier#include <ctype.h> 4230160Scharnier#include <err.h> 4395999Smaxim#include <errno.h> 4430160Scharnier#include <fcntl.h> 45111773Sgad#include <fnmatch.h> 46106905Ssobomax#include <glob.h> 4730160Scharnier#include <grp.h> 4843071Swollman#include <paths.h> 4930160Scharnier#include <pwd.h> 5030160Scharnier#include <signal.h> 5113244Sgraichen#include <stdio.h> 5213244Sgraichen#include <stdlib.h> 5313244Sgraichen#include <string.h> 5443071Swollman#include <time.h> 5516240Salex#include <unistd.h> 5613244Sgraichen 5743071Swollman#include "pathnames.h" 5843071Swollman 59111768Sgad/* 60111768Sgad * Bit-values for the 'flags' parsed from a config-file entry. 61111768Sgad */ 62111768Sgad#define CE_COMPACT 0x0001 /* Compact the achived log files with gzip. */ 63111768Sgad#define CE_BZCOMPACT 0x0002 /* Compact the achived log files with bzip2. */ 64111781Sgad#define CE_COMPACTWAIT 0x0004 /* wait until compressing one file finishes */ 65111768Sgad /* before starting the next step. */ 66111768Sgad#define CE_BINARY 0x0008 /* Logfile is in binary, do not add status */ 67111768Sgad /* messages to logfile(s) when rotating. */ 68111781Sgad#define CE_NOSIGNAL 0x0010 /* There is no process to signal when */ 69111768Sgad /* trimming this file. */ 70111781Sgad#define CE_TRIMAT 0x0020 /* trim file at a specific time. */ 71111781Sgad#define CE_GLOB 0x0040 /* name of the log is file name pattern. */ 72112003Sgad#define CE_SIGNALGROUP 0x0080 /* Signal a process-group instead of a single */ 73112003Sgad /* process when trimming this file. */ 74114137Sgad#define CE_CREATE 0x0100 /* Create the log file if it does not exist. */ 7543071Swollman 76111781Sgad#define MIN_PID 5 /* Don't touch pids lower than this */ 77111781Sgad#define MAX_PID 99999 /* was lower, see /usr/include/sys/proc.h */ 78111781Sgad 79111781Sgad#define kbytes(size) (((size) + 1023) >> 10) 80111781Sgad 8113244Sgraichenstruct conf_entry { 8259003Shm char *log; /* Name of the log */ 8359003Shm char *pid_file; /* PID file */ 84111772Sgad char *r_reason; /* The reason this file is being rotated */ 85114137Sgad int firstcreate; /* Creating log for the first time (-C). */ 86111772Sgad int rotate; /* Non-zero if this file should be rotated */ 87111779Sgad uid_t uid; /* Owner of log */ 88111779Sgad gid_t gid; /* Group of log */ 8959003Shm int numlogs; /* Number of logs to keep */ 9059003Shm int size; /* Size cutoff to trigger trimming the log */ 9159003Shm int hours; /* Hours between log trimming */ 9259003Shm time_t trim_at; /* Specific time to do trimming */ 9359003Shm int permissions; /* File permissions on the log */ 9480646Sobrien int flags; /* CE_COMPACT, CE_BZCOMPACT, CE_BINARY */ 9559003Shm int sig; /* Signal to send */ 96111388Sgad int def_cfg; /* Using the <default> rule for this file */ 9759003Shm struct conf_entry *next;/* Linked list pointer */ 9813244Sgraichen}; 9913244Sgraichen 100111388Sgad#define DEFAULT_MARKER "<default>" 101111388Sgad 10259004Shmint archtodir = 0; /* Archive old logfiles to other directory */ 103114137Sgadint createlogs; /* Create (non-GLOB) logfiles which do not */ 104114137Sgad /* already exist. 1=='for entries with */ 105114137Sgad /* C flag', 2=='for all entries'. */ 10659003Shmint verbose = 0; /* Print out what's going on */ 10759003Shmint needroot = 1; /* Root privs are necessary */ 10859003Shmint noaction = 0; /* Don't do anything, just show it */ 109111768Sgadint nosignal; /* Do not send any signals */ 11059003Shmint force = 0; /* Force the trim no matter what */ 111111772Sgadint rotatereq = 0; /* -R = Always rotate the file(s) as given */ 112111772Sgad /* on the command (this also requires */ 113111772Sgad /* that a list of files *are* given on */ 114111772Sgad /* the run command). */ 115111772Sgadchar *requestor; /* The name given on a -R request */ 11659004Shmchar *archdirname; /* Directory path to old logfiles archive */ 117111773Sgadconst char *conf; /* Configuration file to use */ 11859003Shmtime_t timenow; 11959003Shm 12071299Sjedgarchar hostname[MAXHOSTNAMELEN]; /* hostname */ 121108164Strhodeschar daytime[16]; /* timenow in human readable form */ 12213244Sgraichen 123111773Sgadstatic struct conf_entry *get_worklist(char **files); 124111773Sgadstatic void parse_file(FILE *cf, const char *cfname, struct conf_entry **work_p, 125112020Sgad struct conf_entry **glob_p, struct conf_entry **defconf_p); 12616240Salexstatic char *sob(char *p); 12716240Salexstatic char *son(char *p); 128119102Sgadstatic int isnumberstr(const char *); 12959003Shmstatic char *missing_field(char *p, char *errline); 13059003Shmstatic void do_entry(struct conf_entry * ent); 131112020Sgadstatic void expand_globs(struct conf_entry **work_p, 132112020Sgad struct conf_entry **glob_p); 133112020Sgadstatic void free_clist(struct conf_entry **firstent); 134111388Sgadstatic void free_entry(struct conf_entry *ent); 135111388Sgadstatic struct conf_entry *init_entry(const char *fname, 136111388Sgad struct conf_entry *src_entry); 137111781Sgadstatic void parse_args(int argc, char **argv); 13880640Sobrienstatic void usage(void); 139111779Sgadstatic void dotrim(const struct conf_entry *ent, char *log, 140111780Sgad int numdays, int flags); 141111768Sgadstatic int log_trim(const char *log, const struct conf_entry *log_ent); 142107916Ssobomaxstatic void compress_log(char *log, int dowait); 143107916Ssobomaxstatic void bzcompress_log(char *log, int dowait); 14416240Salexstatic int sizefile(char *file); 14516240Salexstatic int age_old_log(char *file); 146112003Sgadstatic int send_signal(const struct conf_entry *ent); 14793659Scjcstatic time_t parse8601(char *s, char *errline); 148111779Sgadstatic void movefile(char *from, char *to, int perm, uid_t owner_uid, 149111779Sgad gid_t group_gid); 150114137Sgadstatic void createdir(const struct conf_entry *ent, char *dirpart); 151114137Sgadstatic void createlog(const struct conf_entry *ent); 15293659Scjcstatic time_t parseDWM(char *s, char *errline); 15313244Sgraichen 154111768Sgad/* 155111768Sgad * All the following are defined to work on an 'int', in the 156111768Sgad * range 0 to 255, plus EOF. Define wrappers which can take 157111768Sgad * values of type 'char', either signed or unsigned. 158111768Sgad */ 159114762Sgad#define isdigitch(Anychar) isdigit(((int) Anychar) & 255) 160111772Sgad#define isprintch(Anychar) isprint(((int) Anychar) & 255) 161111768Sgad#define isspacech(Anychar) isspace(((int) Anychar) & 255) 162111768Sgad#define tolowerch(Anychar) tolower(((int) Anychar) & 255) 163111768Sgad 16459004Shmint 16559004Shmmain(int argc, char **argv) 16613244Sgraichen{ 16759003Shm struct conf_entry *p, *q; 16825443Sache 169111781Sgad parse_args(argc, argv); 170111773Sgad argc -= optind; 171111773Sgad argv += optind; 172111773Sgad 17359003Shm if (needroot && getuid() && geteuid()) 17459003Shm errx(1, "must have root privs"); 175111773Sgad p = q = get_worklist(argv); 17659003Shm 17759003Shm while (p) { 178112020Sgad do_entry(p); 17959003Shm p = p->next; 180111388Sgad free_entry(q); 18159003Shm q = p; 18259003Shm } 18395999Smaxim while (wait(NULL) > 0 || errno == EINTR) 18495999Smaxim ; 18559003Shm return (0); 18613244Sgraichen} 18713244Sgraichen 188111388Sgadstatic struct conf_entry * 189111388Sgadinit_entry(const char *fname, struct conf_entry *src_entry) 190111388Sgad{ 191111388Sgad struct conf_entry *tempwork; 192111388Sgad 193111388Sgad if (verbose > 4) 194111388Sgad printf("\t--> [creating entry for %s]\n", fname); 195111388Sgad 196111388Sgad tempwork = malloc(sizeof(struct conf_entry)); 197111388Sgad if (tempwork == NULL) 198111388Sgad err(1, "malloc of conf_entry for %s", fname); 199111388Sgad 200111388Sgad tempwork->log = strdup(fname); 201111388Sgad if (tempwork->log == NULL) 202111388Sgad err(1, "strdup for %s", fname); 203111388Sgad 204111388Sgad if (src_entry != NULL) { 205111388Sgad tempwork->pid_file = NULL; 206111388Sgad if (src_entry->pid_file) 207111388Sgad tempwork->pid_file = strdup(src_entry->pid_file); 208111772Sgad tempwork->r_reason = NULL; 209114137Sgad tempwork->firstcreate = 0; 210111772Sgad tempwork->rotate = 0; 211111388Sgad tempwork->uid = src_entry->uid; 212111388Sgad tempwork->gid = src_entry->gid; 213111388Sgad tempwork->numlogs = src_entry->numlogs; 214111388Sgad tempwork->size = src_entry->size; 215111388Sgad tempwork->hours = src_entry->hours; 216111388Sgad tempwork->trim_at = src_entry->trim_at; 217111388Sgad tempwork->permissions = src_entry->permissions; 218111388Sgad tempwork->flags = src_entry->flags; 219111388Sgad tempwork->sig = src_entry->sig; 220111388Sgad tempwork->def_cfg = src_entry->def_cfg; 221111388Sgad } else { 222111388Sgad /* Initialize as a "do-nothing" entry */ 223111388Sgad tempwork->pid_file = NULL; 224111772Sgad tempwork->r_reason = NULL; 225114137Sgad tempwork->firstcreate = 0; 226111772Sgad tempwork->rotate = 0; 227111779Sgad tempwork->uid = (uid_t)-1; 228111779Sgad tempwork->gid = (gid_t)-1; 229111388Sgad tempwork->numlogs = 1; 230111388Sgad tempwork->size = -1; 231111388Sgad tempwork->hours = -1; 232111388Sgad tempwork->trim_at = (time_t)0; 233111388Sgad tempwork->permissions = 0; 234111388Sgad tempwork->flags = 0; 235111388Sgad tempwork->sig = SIGHUP; 236111388Sgad tempwork->def_cfg = 0; 237111388Sgad } 238111388Sgad tempwork->next = NULL; 239111388Sgad 240111388Sgad return (tempwork); 241111388Sgad} 242111388Sgad 24359004Shmstatic void 244111388Sgadfree_entry(struct conf_entry *ent) 245111388Sgad{ 246111388Sgad 247111388Sgad if (ent == NULL) 248111388Sgad return; 249111388Sgad 250111388Sgad if (ent->log != NULL) { 251111388Sgad if (verbose > 4) 252111388Sgad printf("\t--> [freeing entry for %s]\n", ent->log); 253111388Sgad free(ent->log); 254111388Sgad ent->log = NULL; 255111388Sgad } 256111388Sgad 257111388Sgad if (ent->pid_file != NULL) { 258111388Sgad free(ent->pid_file); 259111388Sgad ent->pid_file = NULL; 260111388Sgad } 261111388Sgad 262111772Sgad if (ent->r_reason != NULL) { 263111772Sgad free(ent->r_reason); 264111772Sgad ent->r_reason = NULL; 265111772Sgad } 266111772Sgad 267111388Sgad free(ent); 268111388Sgad} 269111388Sgad 270111388Sgadstatic void 271112020Sgadfree_clist(struct conf_entry **firstent) 272112020Sgad{ 273112020Sgad struct conf_entry *ent, *nextent; 274112020Sgad 275112020Sgad if (firstent == NULL) 276112020Sgad return; /* There is nothing to do. */ 277112020Sgad 278112020Sgad ent = *firstent; 279112020Sgad firstent = NULL; 280112020Sgad 281112020Sgad while (ent) { 282112020Sgad nextent = ent->next; 283112020Sgad free_entry(ent); 284112020Sgad ent = nextent; 285112020Sgad } 286112020Sgad} 287112020Sgad 288112020Sgadstatic void 28959004Shmdo_entry(struct conf_entry * ent) 29013244Sgraichen{ 291111772Sgad#define REASON_MAX 80 29259003Shm int size, modtime; 293111772Sgad char temp_reason[REASON_MAX]; 29459003Shm 29559003Shm if (verbose) { 29659003Shm if (ent->flags & CE_COMPACT) 29759003Shm printf("%s <%dZ>: ", ent->log, ent->numlogs); 29880638Sobrien else if (ent->flags & CE_BZCOMPACT) 29980638Sobrien printf("%s <%dJ>: ", ent->log, ent->numlogs); 30059003Shm else 30159003Shm printf("%s <%d>: ", ent->log, ent->numlogs); 30259003Shm } 30359003Shm size = sizefile(ent->log); 30459003Shm modtime = age_old_log(ent->log); 305111772Sgad ent->rotate = 0; 306114137Sgad ent->firstcreate = 0; 30759003Shm if (size < 0) { 308114137Sgad /* 309114137Sgad * If either the C flag or the -C option was specified, 310114137Sgad * and if we won't be creating the file, then have the 311114137Sgad * verbose message include a hint as to why the file 312114137Sgad * will not be created. 313114137Sgad */ 314114137Sgad temp_reason[0] = '\0'; 315114137Sgad if (createlogs > 1) 316114137Sgad ent->firstcreate = 1; 317114137Sgad else if ((ent->flags & CE_CREATE) && createlogs) 318114137Sgad ent->firstcreate = 1; 319114137Sgad else if (ent->flags & CE_CREATE) 320114137Sgad strncpy(temp_reason, " (no -C option)", REASON_MAX); 321114137Sgad else if (createlogs) 322114137Sgad strncpy(temp_reason, " (no C flag)", REASON_MAX); 323114137Sgad 324114137Sgad if (ent->firstcreate) { 325114137Sgad if (verbose) 326114137Sgad printf("does not exist -> will create.\n"); 327114137Sgad createlog(ent); 328114137Sgad } else if (verbose) { 329114137Sgad printf("does not exist, skipped%s.\n", temp_reason); 330114137Sgad } 33159003Shm } else { 332111772Sgad if (ent->flags & CE_TRIMAT && !force && !rotatereq) { 33343071Swollman if (timenow < ent->trim_at 33459003Shm || difftime(timenow, ent->trim_at) >= 60 * 60) { 33543071Swollman if (verbose) 33643071Swollman printf("--> will trim at %s", 33759003Shm ctime(&ent->trim_at)); 33843071Swollman return; 33943071Swollman } else if (verbose && ent->hours <= 0) { 34043071Swollman printf("--> time is up\n"); 34143071Swollman } 34243071Swollman } 34359003Shm if (verbose && (ent->size > 0)) 34459003Shm printf("size (Kb): %d [%d] ", size, ent->size); 34559003Shm if (verbose && (ent->hours > 0)) 34659003Shm printf(" age (hr): %d [%d] ", modtime, ent->hours); 347111772Sgad 348111772Sgad /* 349111772Sgad * Figure out if this logfile needs to be rotated. 350111772Sgad */ 351111772Sgad temp_reason[0] = '\0'; 352111772Sgad if (rotatereq) { 353111772Sgad ent->rotate = 1; 354111772Sgad snprintf(temp_reason, REASON_MAX, " due to -R from %s", 355111772Sgad requestor); 356111772Sgad } else if (force) { 357111772Sgad ent->rotate = 1; 358111772Sgad snprintf(temp_reason, REASON_MAX, " due to -F request"); 359111772Sgad } else if ((ent->size > 0) && (size >= ent->size)) { 360111772Sgad ent->rotate = 1; 361111772Sgad snprintf(temp_reason, REASON_MAX, " due to size>%dK", 362111772Sgad ent->size); 363111772Sgad } else if (ent->hours <= 0 && (ent->flags & CE_TRIMAT)) { 364111772Sgad ent->rotate = 1; 365111772Sgad } else if ((ent->hours > 0) && ((modtime >= ent->hours) || 366111772Sgad (modtime < 0))) { 367111772Sgad ent->rotate = 1; 368111772Sgad } 369111772Sgad 370111772Sgad /* 371111772Sgad * If the file needs to be rotated, then rotate it. 372111772Sgad */ 373111772Sgad if (ent->rotate) { 374111772Sgad if (temp_reason[0] != '\0') 375111772Sgad ent->r_reason = strdup(temp_reason); 37659003Shm if (verbose) 37759003Shm printf("--> trimming log....\n"); 37859003Shm if (noaction && !verbose) { 37959003Shm if (ent->flags & CE_COMPACT) 38059003Shm printf("%s <%dZ>: trimming\n", 38159003Shm ent->log, ent->numlogs); 38280638Sobrien else if (ent->flags & CE_BZCOMPACT) 38380638Sobrien printf("%s <%dJ>: trimming\n", 38480638Sobrien ent->log, ent->numlogs); 38559003Shm else 38659003Shm printf("%s <%d>: trimming\n", 38759003Shm ent->log, ent->numlogs); 38859003Shm } 389111780Sgad dotrim(ent, ent->log, ent->numlogs, ent->flags); 39059003Shm } else { 39159003Shm if (verbose) 39259003Shm printf("--> skipping\n"); 39359003Shm } 39459003Shm } 395111772Sgad#undef REASON_MAX 39613244Sgraichen} 39713244Sgraichen 398112003Sgad/* Send a signal to the pid specified by pidfile */ 399112003Sgadstatic int 400112003Sgadsend_signal(const struct conf_entry *ent) 401112003Sgad{ 402112003Sgad pid_t target_pid; 403112003Sgad int did_notify; 404112003Sgad FILE *f; 405112003Sgad long minok, maxok, rval; 406112003Sgad const char *target_name; 407112003Sgad char *endp, *linep, line[BUFSIZ]; 408112003Sgad 409112003Sgad did_notify = 0; 410112003Sgad f = fopen(ent->pid_file, "r"); 411112003Sgad if (f == NULL) { 412112003Sgad warn("can't open pid file: %s", ent->pid_file); 413112003Sgad return (did_notify); 414112003Sgad /* NOTREACHED */ 415112003Sgad } 416112003Sgad 417112003Sgad if (fgets(line, BUFSIZ, f) == NULL) { 418112003Sgad /* 419112003Sgad * XXX - If the pid file is empty, is that really a 420112003Sgad * problem? Wouldn't that mean that the process 421112003Sgad * has shut down? In that case there would be no 422112003Sgad * problem with compressing the rotated log file. 423112003Sgad */ 424112003Sgad if (feof(f)) 425112003Sgad warnx("pid file is empty: %s", ent->pid_file); 426112003Sgad else 427112003Sgad warn("can't read from pid file: %s", ent->pid_file); 428112003Sgad (void) fclose(f); 429112003Sgad return (did_notify); 430112003Sgad /* NOTREACHED */ 431112003Sgad } 432112003Sgad (void) fclose(f); 433112003Sgad 434112003Sgad target_name = "daemon"; 435112003Sgad minok = MIN_PID; 436112003Sgad maxok = MAX_PID; 437112003Sgad if (ent->flags & CE_SIGNALGROUP) { 438112003Sgad /* 439112003Sgad * If we are expected to signal a process-group when 440112003Sgad * rotating this logfile, then the value read in should 441112003Sgad * be the negative of a valid process ID. 442112003Sgad */ 443112003Sgad target_name = "process-group"; 444112003Sgad minok = -MAX_PID; 445112003Sgad maxok = -MIN_PID; 446112003Sgad } 447112003Sgad 448112003Sgad errno = 0; 449112003Sgad linep = line; 450112003Sgad while (*linep == ' ') 451112003Sgad linep++; 452112003Sgad rval = strtol(linep, &endp, 10); 453112003Sgad if (*endp != '\0' && !isspacech(*endp)) { 454112003Sgad warnx("pid file does not start with a valid number: %s", 455112003Sgad ent->pid_file); 456112003Sgad rval = 0; 457112003Sgad } else if (rval < minok || rval > maxok) { 458112003Sgad warnx("bad value '%ld' for process number in %s", 459112003Sgad rval, ent->pid_file); 460112003Sgad if (verbose) 461112003Sgad warnx("\t(expecting value between %ld and %ld)", 462112003Sgad minok, maxok); 463112003Sgad rval = 0; 464112003Sgad } 465112003Sgad if (rval == 0) { 466112003Sgad return (did_notify); 467112003Sgad /* NOTREACHED */ 468112003Sgad } 469112003Sgad 470112003Sgad target_pid = rval; 471112003Sgad 472112003Sgad if (noaction) { 473112003Sgad did_notify = 1; 474112003Sgad printf("\tkill -%d %d\n", ent->sig, (int) target_pid); 475112003Sgad } else if (kill(target_pid, ent->sig)) { 476112003Sgad /* 477112003Sgad * XXX - Iff the error was "no such process", should that 478112003Sgad * really be an error for us? Perhaps the process 479112003Sgad * is already gone, in which case there would be no 480112003Sgad * problem with compressing the rotated log file. 481112003Sgad */ 482112003Sgad warn("can't notify %s, pid %d", target_name, 483112003Sgad (int) target_pid); 484112003Sgad } else { 485112003Sgad did_notify = 1; 486112003Sgad if (verbose) 487112003Sgad printf("%s pid %d notified\n", target_name, 488112003Sgad (int) target_pid); 489112003Sgad } 490112003Sgad 491112003Sgad return (did_notify); 492112003Sgad} 493112003Sgad 49459004Shmstatic void 495111781Sgadparse_args(int argc, char **argv) 49613244Sgraichen{ 497111781Sgad int ch; 49859003Shm char *p; 49913244Sgraichen 500111781Sgad timenow = time(NULL); 501108164Strhodes (void)strncpy(daytime, ctime(&timenow) + 4, 15); 50259003Shm daytime[15] = '\0'; 50313244Sgraichen 50459003Shm /* Let's get our hostname */ 505111781Sgad (void)gethostname(hostname, sizeof(hostname)); 50613244Sgraichen 50713244Sgraichen /* Truncate domain */ 508111781Sgad if ((p = strchr(hostname, '.')) != NULL) 50913244Sgraichen *p = '\0'; 510111768Sgad 511111768Sgad /* Parse command line options. */ 512114137Sgad while ((ch = getopt(argc, argv, "a:f:nrsvCFR:")) != -1) 513111781Sgad switch (ch) { 51459004Shm case 'a': 51559004Shm archtodir++; 51659004Shm archdirname = optarg; 51759004Shm break; 518111768Sgad case 'f': 519111768Sgad conf = optarg; 520111768Sgad break; 521111768Sgad case 'n': 522111768Sgad noaction++; 523111768Sgad break; 52459003Shm case 'r': 52559003Shm needroot = 0; 52659003Shm break; 527111768Sgad case 's': 528111768Sgad nosignal = 1; 529111768Sgad break; 53059003Shm case 'v': 53159003Shm verbose++; 53259003Shm break; 533114137Sgad case 'C': 534114137Sgad /* Useful for things like rc.diskless... */ 535114137Sgad createlogs++; 536114137Sgad break; 53734584Spst case 'F': 53834584Spst force++; 53934584Spst break; 540111772Sgad case 'R': 541111772Sgad rotatereq++; 542111772Sgad requestor = strdup(optarg); 543111772Sgad break; 544111781Sgad case 'm': /* Used by OpenBSD for "monitor mode" */ 54559003Shm default: 54659003Shm usage(); 547111768Sgad /* NOTREACHED */ 54859003Shm } 549111772Sgad 550111772Sgad if (rotatereq) { 551111772Sgad if (optind == argc) { 552111772Sgad warnx("At least one filename must be given when -R is specified."); 553111772Sgad usage(); 554111772Sgad /* NOTREACHED */ 555111772Sgad } 556111772Sgad /* Make sure "requestor" value is safe for a syslog message. */ 557111772Sgad for (p = requestor; *p != '\0'; p++) { 558111772Sgad if (!isprintch(*p) && (*p != '\t')) 559111772Sgad *p = '.'; 560111772Sgad } 561111772Sgad } 56243071Swollman} 56313244Sgraichen 56459004Shmstatic void 56559004Shmusage(void) 56613244Sgraichen{ 56780646Sobrien 56880646Sobrien fprintf(stderr, 569114137Sgad "usage: newsyslog [-CFnrsv] [-a directory] [-f config-file]\n" 570111772Sgad " [ [-R requestor] filename ... ]\n"); 57159003Shm exit(1); 57213244Sgraichen} 57313244Sgraichen 57459004Shm/* 575111773Sgad * Parse a configuration file and return a linked list of all the logs 576111773Sgad * which should be processed. 57713244Sgraichen */ 57859003Shmstatic struct conf_entry * 579111773Sgadget_worklist(char **files) 58013244Sgraichen{ 58159003Shm FILE *f; 582111773Sgad const char *fname; 583111773Sgad char **given; 584111773Sgad struct conf_entry *defconf, *dupent, *ent, *firstnew; 585112020Sgad struct conf_entry *globlist, *lastnew, *worklist; 586112020Sgad int gmatch, fnres; 587111773Sgad 588112020Sgad defconf = globlist = worklist = NULL; 589111773Sgad 590111773Sgad fname = conf; 591111773Sgad if (fname == NULL) 592111773Sgad fname = _PATH_CONF; 593111773Sgad 594111773Sgad if (strcmp(fname, "-") != 0) 595111773Sgad f = fopen(fname, "r"); 596111773Sgad else { 597111773Sgad f = stdin; 598111773Sgad fname = "<stdin>"; 599111773Sgad } 600111773Sgad if (!f) 601111773Sgad err(1, "%s", conf); 602111773Sgad 603112020Sgad parse_file(f, fname, &worklist, &globlist, &defconf); 604111773Sgad (void) fclose(f); 605111773Sgad 606111773Sgad /* 607111773Sgad * All config-file information has been read in and turned into 608112020Sgad * a worklist and a globlist. If there were no specific files 609112020Sgad * given on the run command, then the only thing left to do is to 610112020Sgad * call a routine which finds all files matched by the globlist 611112020Sgad * and adds them to the worklist. Then return the worklist. 612111773Sgad */ 613111773Sgad if (*files == NULL) { 614112020Sgad expand_globs(&worklist, &globlist); 615112020Sgad free_clist(&globlist); 616111773Sgad if (defconf != NULL) 617111773Sgad free_entry(defconf); 618111773Sgad return (worklist); 619111773Sgad /* NOTREACHED */ 620111773Sgad } 621111773Sgad 622111773Sgad /* 623111773Sgad * If newsyslog was given a specific list of files to process, 624111773Sgad * it may be that some of those files were not listed in any 625111773Sgad * config file. Those unlisted files should get the default 626111773Sgad * rotation action. First, create the default-rotation action 627111773Sgad * if none was found in a system config file. 628111773Sgad */ 629111773Sgad if (defconf == NULL) { 630111773Sgad defconf = init_entry(DEFAULT_MARKER, NULL); 631111773Sgad defconf->numlogs = 3; 632111773Sgad defconf->size = 50; 633111773Sgad defconf->permissions = S_IRUSR|S_IWUSR; 634111773Sgad } 635111773Sgad 636111773Sgad /* 637111773Sgad * If newsyslog was run with a list of specific filenames, 638111773Sgad * then create a new worklist which has only those files in 639111773Sgad * it, picking up the rotation-rules for those files from 640111773Sgad * the original worklist. 641111773Sgad * 642111773Sgad * XXX - Note that this will copy multiple rules for a single 643111773Sgad * logfile, if multiple entries are an exact match for 644111773Sgad * that file. That matches the historic behavior, but do 645111773Sgad * we want to continue to allow it? If so, it should 646111773Sgad * probably be handled more intelligently. 647111773Sgad */ 648112020Sgad firstnew = lastnew = NULL; 649111773Sgad for (given = files; *given; ++given) { 650111773Sgad /* 651111773Sgad * First try to find exact-matches for this given file. 652111773Sgad */ 653112020Sgad gmatch = 0; 654111773Sgad for (ent = worklist; ent; ent = ent->next) { 655111773Sgad if (strcmp(ent->log, *given) == 0) { 656111773Sgad gmatch++; 657111773Sgad dupent = init_entry(*given, ent); 658111773Sgad if (!firstnew) 659111773Sgad firstnew = dupent; 660111773Sgad else 661112020Sgad lastnew->next = dupent; 662112020Sgad lastnew = dupent; 663111773Sgad } 664111773Sgad } 665111773Sgad if (gmatch) { 666111773Sgad if (verbose > 2) 667111773Sgad printf("\t+ Matched entry %s\n", *given); 668111773Sgad continue; 669111773Sgad } 670111773Sgad 671111773Sgad /* 672111773Sgad * There was no exact-match for this given file, so look 673111773Sgad * for a "glob" entry which does match. 674111773Sgad */ 675112020Sgad gmatch = 0; 676112020Sgad if (verbose > 2 && globlist != NULL) 677112020Sgad printf("\t+ Checking globs for %s\n", *given); 678112020Sgad for (ent = globlist; ent; ent = ent->next) { 679112020Sgad fnres = fnmatch(ent->log, *given, FNM_PATHNAME); 680112020Sgad if (verbose > 2) 681112020Sgad printf("\t+ = %d for pattern %s\n", fnres, 682112020Sgad ent->log); 683112020Sgad if (fnres == 0) { 684111773Sgad gmatch++; 685111773Sgad dupent = init_entry(*given, ent); 686111773Sgad if (!firstnew) 687111773Sgad firstnew = dupent; 688111773Sgad else 689112020Sgad lastnew->next = dupent; 690112020Sgad lastnew = dupent; 691112020Sgad /* This new entry is not a glob! */ 692111773Sgad dupent->flags &= ~CE_GLOB; 693111773Sgad /* Only allow a match to one glob-entry */ 694111773Sgad break; 695111773Sgad } 696111773Sgad } 697111773Sgad if (gmatch) { 698111773Sgad if (verbose > 2) 699111773Sgad printf("\t+ Matched %s via %s\n", *given, 700111773Sgad ent->log); 701111773Sgad continue; 702111773Sgad } 703111773Sgad 704111773Sgad /* 705111773Sgad * This given file was not found in any config file, so 706111773Sgad * add a worklist item based on the default entry. 707111773Sgad */ 708111773Sgad if (verbose > 2) 709111773Sgad printf("\t+ No entry matched %s (will use %s)\n", 710111773Sgad *given, DEFAULT_MARKER); 711111773Sgad dupent = init_entry(*given, defconf); 712111773Sgad if (!firstnew) 713111773Sgad firstnew = dupent; 714111773Sgad else 715112020Sgad lastnew->next = dupent; 716111773Sgad /* Mark that it was *not* found in a config file */ 717111773Sgad dupent->def_cfg = 1; 718112020Sgad lastnew = dupent; 719111773Sgad } 720111773Sgad 721111773Sgad /* 722112020Sgad * Free all the entries in the original work list, the list of 723112020Sgad * glob entries, and the default entry. 724111773Sgad */ 725112020Sgad free_clist(&worklist); 726112020Sgad free_clist(&globlist); 727112020Sgad free_entry(defconf); 728111773Sgad 729112020Sgad /* And finally, return a worklist which matches the given files. */ 730112013Sgad return (firstnew); 731111773Sgad} 732111773Sgad 733111773Sgad/* 734112020Sgad * Expand the list of entries with filename patterns, and add all files 735112020Sgad * which match those glob-entries onto the worklist. 736112020Sgad */ 737112020Sgadstatic void 738112020Sgadexpand_globs(struct conf_entry **work_p, struct conf_entry **glob_p) 739112020Sgad{ 740112020Sgad int gmatch, gres, i; 741112020Sgad char *mfname; 742112020Sgad struct conf_entry *dupent, *ent, *firstmatch, *globent; 743112020Sgad struct conf_entry *lastmatch; 744112020Sgad glob_t pglob; 745112020Sgad struct stat st_fm; 746112020Sgad 747112020Sgad if ((glob_p == NULL) || (*glob_p == NULL)) 748112020Sgad return; /* There is nothing to do. */ 749112020Sgad 750112020Sgad /* 751112020Sgad * The worklist contains all fully-specified (non-GLOB) names. 752112020Sgad * 753112020Sgad * Now expand the list of filename-pattern (GLOB) entries into 754112020Sgad * a second list, which (by definition) will only match files 755112020Sgad * that already exist. Do not add a glob-related entry for any 756112020Sgad * file which already exists in the fully-specified list. 757112020Sgad */ 758112020Sgad firstmatch = lastmatch = NULL; 759112020Sgad for (globent = *glob_p; globent; globent = globent->next) { 760112020Sgad 761112020Sgad gres = glob(globent->log, GLOB_NOCHECK, NULL, &pglob); 762112020Sgad if (gres != 0) { 763112020Sgad warn("cannot expand pattern (%d): %s", gres, 764112020Sgad globent->log); 765112020Sgad continue; 766112020Sgad } 767112020Sgad 768112020Sgad if (verbose > 2) 769112020Sgad printf("\t+ Expanding pattern %s\n", globent->log); 770112020Sgad for (i = 0; i < pglob.gl_matchc; i++) { 771112020Sgad mfname = pglob.gl_pathv[i]; 772112020Sgad 773112020Sgad /* See if this file already has a specific entry. */ 774112020Sgad gmatch = 0; 775112020Sgad for (ent = *work_p; ent; ent = ent->next) { 776112020Sgad if (strcmp(mfname, ent->log) == 0) { 777112020Sgad gmatch++; 778112020Sgad break; 779112020Sgad } 780112020Sgad } 781112020Sgad if (gmatch) 782112020Sgad continue; 783112020Sgad 784112020Sgad /* Make sure the named matched is a file. */ 785112020Sgad gres = lstat(mfname, &st_fm); 786112020Sgad if (gres != 0) { 787112020Sgad /* Error on a file that glob() matched?!? */ 788112020Sgad warn("Skipping %s - lstat() error", mfname); 789112020Sgad continue; 790112020Sgad } 791112020Sgad if (!S_ISREG(st_fm.st_mode)) { 792112020Sgad /* We only rotate files! */ 793112020Sgad if (verbose > 2) 794112020Sgad printf("\t+ . skipping %s (!file)\n", 795112020Sgad mfname); 796112020Sgad continue; 797112020Sgad } 798112020Sgad 799112020Sgad if (verbose > 2) 800112020Sgad printf("\t+ . add file %s\n", mfname); 801112020Sgad dupent = init_entry(mfname, globent); 802112020Sgad if (!firstmatch) 803112020Sgad firstmatch = dupent; 804112020Sgad else 805112020Sgad lastmatch->next = dupent; 806112020Sgad lastmatch = dupent; 807112020Sgad /* This new entry is not a glob! */ 808112020Sgad dupent->flags &= ~CE_GLOB; 809112020Sgad } 810112020Sgad globfree(&pglob); 811112020Sgad if (verbose > 2) 812112020Sgad printf("\t+ Done with pattern %s\n", globent->log); 813112020Sgad } 814112020Sgad 815112020Sgad /* Add the list of matched files to the end of the worklist. */ 816112020Sgad if (!*work_p) 817112020Sgad *work_p = firstmatch; 818112020Sgad else { 819112020Sgad ent = *work_p; 820112020Sgad while (ent->next) 821112020Sgad ent = ent->next; 822112020Sgad ent->next = firstmatch; 823112020Sgad } 824112020Sgad 825112020Sgad} 826112020Sgad 827112020Sgad/* 828111773Sgad * Parse a configuration file and update a linked list of all the logs to 829111773Sgad * process. 830111773Sgad */ 831111773Sgadstatic void 832111773Sgadparse_file(FILE *cf, const char *cfname, struct conf_entry **work_p, 833112020Sgad struct conf_entry **glob_p, struct conf_entry **defconf_p) 834111773Sgad{ 83559003Shm char line[BUFSIZ], *parse, *q; 836107737Ssobomax char *cp, *errline, *group; 837112020Sgad struct conf_entry *lastglob, *lastwork, *working; 838111781Sgad struct passwd *pwd; 83959003Shm struct group *grp; 840112020Sgad int eol, special; 84113244Sgraichen 842111773Sgad /* 843111773Sgad * XXX - for now, assume that only one config file will be read, 844111773Sgad * ie, this routine is only called one time. 845111773Sgad */ 846112020Sgad lastglob = lastwork = NULL; 84780646Sobrien 848111773Sgad while (fgets(line, BUFSIZ, cf)) { 849107737Ssobomax if ((line[0] == '\n') || (line[0] == '#') || 850107737Ssobomax (strlen(line) == 0)) 85159003Shm continue; 85259003Shm errline = strdup(line); 853107737Ssobomax for (cp = line + 1; *cp != '\0'; cp++) { 854107737Ssobomax if (*cp != '#') 855107737Ssobomax continue; 856107737Ssobomax if (*(cp - 1) == '\\') { 857107737Ssobomax strcpy(cp - 1, cp); 858107737Ssobomax cp--; 859107737Ssobomax continue; 860107737Ssobomax } 861107737Ssobomax *cp = '\0'; 862107737Ssobomax break; 863107737Ssobomax } 86460373Sdes 86560373Sdes q = parse = missing_field(sob(line), errline); 86660373Sdes parse = son(line); 86760373Sdes if (!*parse) 86880646Sobrien errx(1, "malformed line (missing fields):\n%s", 86980646Sobrien errline); 87060373Sdes *parse = '\0'; 87160373Sdes 872112020Sgad special = 0; 873111388Sgad working = init_entry(q, NULL); 874111388Sgad if (strcasecmp(DEFAULT_MARKER, q) == 0) { 875112020Sgad special = 1; 876111773Sgad if (defconf_p == NULL) { 877111773Sgad warnx("Ignoring entry for %s in %s!", q, 878111773Sgad cfname); 879111773Sgad free_entry(working); 880111773Sgad continue; 881111773Sgad } else if (*defconf_p != NULL) { 882111388Sgad warnx("Ignoring duplicate entry for %s!", q); 883111388Sgad free_entry(working); 884111388Sgad continue; 885111388Sgad } 886111773Sgad *defconf_p = working; 88759003Shm } 88813244Sgraichen 88959003Shm q = parse = missing_field(sob(++parse), errline); 89059003Shm parse = son(parse); 89125518Sbrian if (!*parse) 89280646Sobrien errx(1, "malformed line (missing fields):\n%s", 89380646Sobrien errline); 89459003Shm *parse = '\0'; 89559003Shm if ((group = strchr(q, ':')) != NULL || 89659003Shm (group = strrchr(q, '.')) != NULL) { 89759003Shm *group++ = '\0'; 89859003Shm if (*q) { 899119102Sgad if (!(isnumberstr(q))) { 900111781Sgad if ((pwd = getpwnam(q)) == NULL) 90159003Shm errx(1, 90280646Sobrien "error in config file; unknown user:\n%s", 90359003Shm errline); 904111781Sgad working->uid = pwd->pw_uid; 90559003Shm } else 90659003Shm working->uid = atoi(q); 90759003Shm } else 908111779Sgad working->uid = (uid_t)-1; 90913244Sgraichen 91059003Shm q = group; 91159003Shm if (*q) { 912119102Sgad if (!(isnumberstr(q))) { 91359003Shm if ((grp = getgrnam(q)) == NULL) 91459003Shm errx(1, 91580646Sobrien "error in config file; unknown group:\n%s", 91659003Shm errline); 91759003Shm working->gid = grp->gr_gid; 91859003Shm } else 91959003Shm working->gid = atoi(q); 92059003Shm } else 921111779Sgad working->gid = (gid_t)-1; 92213244Sgraichen 92359003Shm q = parse = missing_field(sob(++parse), errline); 92459003Shm parse = son(parse); 92559003Shm if (!*parse) 92680646Sobrien errx(1, "malformed line (missing fields):\n%s", 92780646Sobrien errline); 92859003Shm *parse = '\0'; 929111779Sgad } else { 930111779Sgad working->uid = (uid_t)-1; 931111779Sgad working->gid = (gid_t)-1; 932111779Sgad } 93359003Shm 93459003Shm if (!sscanf(q, "%o", &working->permissions)) 93559003Shm errx(1, "error in config file; bad permissions:\n%s", 93659003Shm errline); 93759003Shm 93859003Shm q = parse = missing_field(sob(++parse), errline); 93959003Shm parse = son(parse); 94025518Sbrian if (!*parse) 94180646Sobrien errx(1, "malformed line (missing fields):\n%s", 94280646Sobrien errline); 94359003Shm *parse = '\0'; 944111400Sgad if (!sscanf(q, "%d", &working->numlogs) || working->numlogs < 0) 945111400Sgad errx(1, "error in config file; bad value for count of logs to save:\n%s", 94659003Shm errline); 94713244Sgraichen 94859003Shm q = parse = missing_field(sob(++parse), errline); 94959003Shm parse = son(parse); 95025518Sbrian if (!*parse) 95180646Sobrien errx(1, "malformed line (missing fields):\n%s", 95280646Sobrien errline); 95359003Shm *parse = '\0'; 954114762Sgad if (isdigitch(*q)) 95559003Shm working->size = atoi(q); 956114762Sgad else if (strcmp(q,"*") == 0) 95759003Shm working->size = -1; 958114762Sgad else { 959114762Sgad warnx("Invalid value of '%s' for 'size' in line:\n%s", 960114762Sgad q, errline); 961114762Sgad working->size = -1; 962114762Sgad } 96359003Shm 96459003Shm working->flags = 0; 96559003Shm q = parse = missing_field(sob(++parse), errline); 96659003Shm parse = son(parse); 96725518Sbrian eol = !*parse; 96859003Shm *parse = '\0'; 96943071Swollman { 97059003Shm char *ep; 97159003Shm u_long ul; 97213244Sgraichen 97343071Swollman ul = strtoul(q, &ep, 10); 97443071Swollman if (ep == q) 97543071Swollman working->hours = 0; 97643071Swollman else if (*ep == '*') 97743071Swollman working->hours = -1; 97843071Swollman else if (ul > INT_MAX) 97943071Swollman errx(1, "interval is too large:\n%s", errline); 98043071Swollman else 98143071Swollman working->hours = ul; 98243071Swollman 98380646Sobrien if (*ep != '\0' && *ep != '@' && *ep != '*' && 98480646Sobrien *ep != '$') 98543071Swollman errx(1, "malformed interval/at:\n%s", errline); 98643071Swollman if (*ep == '@') { 98793659Scjc if ((working->trim_at = parse8601(ep + 1, errline)) 98859003Shm == (time_t) - 1) 98943071Swollman errx(1, "malformed at:\n%s", errline); 99043071Swollman working->flags |= CE_TRIMAT; 99159004Shm } else if (*ep == '$') { 99293659Scjc if ((working->trim_at = parseDWM(ep + 1, errline)) 99359004Shm == (time_t) - 1) 99459004Shm errx(1, "malformed at:\n%s", errline); 99559004Shm working->flags |= CE_TRIMAT; 99643071Swollman } 99743071Swollman } 99843071Swollman 99925518Sbrian if (eol) 100059003Shm q = NULL; 100125518Sbrian else { 100259003Shm q = parse = sob(++parse); /* Optional field */ 100359003Shm parse = son(parse); 100459003Shm if (!*parse) 100559003Shm eol = 1; 100659003Shm *parse = '\0'; 100725518Sbrian } 100825443Sache 1009111768Sgad for (; q && *q && !isspacech(*q); q++) { 1010111768Sgad switch (tolowerch(*q)) { 1011111768Sgad case 'b': 101259003Shm working->flags |= CE_BINARY; 1013111768Sgad break; 1014114137Sgad case 'c': 1015111768Sgad /* 1016114137Sgad * XXX - Ick! Ugly! Remove ASAP! 1017114137Sgad * We want `c' and `C' for "create". But we 1018114137Sgad * will temporarily treat `c' as `g', because 1019114137Sgad * FreeBSD releases <= 4.8 have a typo of 1020114137Sgad * checking ('G' || 'c') for CE_GLOB. 1021111768Sgad */ 1022114137Sgad if (*q == 'c') { 1023114137Sgad warnx("Assuming 'g' for 'c' in flags for line:\n%s", 1024114137Sgad errline); 1025114137Sgad warnx("The 'c' flag will eventually mean 'CREATE'"); 1026114137Sgad working->flags |= CE_GLOB; 1027114137Sgad break; 1028114137Sgad } 1029114137Sgad working->flags |= CE_CREATE; 1030114137Sgad break; 1031111768Sgad case 'g': 1032106905Ssobomax working->flags |= CE_GLOB; 1033111768Sgad break; 1034111768Sgad case 'j': 1035111768Sgad working->flags |= CE_BZCOMPACT; 1036111768Sgad break; 1037111768Sgad case 'n': 1038111768Sgad working->flags |= CE_NOSIGNAL; 1039111768Sgad break; 1040112003Sgad case 'u': 1041112003Sgad working->flags |= CE_SIGNALGROUP; 1042112003Sgad break; 1043111768Sgad case 'w': 1044107916Ssobomax working->flags |= CE_COMPACTWAIT; 1045111768Sgad break; 1046111768Sgad case 'z': 1047111768Sgad working->flags |= CE_COMPACT; 1048111768Sgad break; 1049111768Sgad case '-': 1050111768Sgad break; 1051111781Sgad case 'f': /* Used by OpenBSD for "CE_FOLLOW" */ 1052111781Sgad case 'm': /* Used by OpenBSD for "CE_MONITOR" */ 1053111781Sgad case 'p': /* Used by NetBSD for "CE_PLAIN0" */ 1054111768Sgad default: 105580646Sobrien errx(1, "illegal flag in config file -- %c", 105680646Sobrien *q); 1057111768Sgad } 105859003Shm } 105959003Shm 106025518Sbrian if (eol) 106159003Shm q = NULL; 106225518Sbrian else { 106359003Shm q = parse = sob(++parse); /* Optional field */ 106459003Shm parse = son(parse); 106559003Shm if (!*parse) 106659003Shm eol = 1; 106759003Shm *parse = '\0'; 106825518Sbrian } 106925443Sache 107025443Sache working->pid_file = NULL; 107125443Sache if (q && *q) { 107225443Sache if (*q == '/') 107325443Sache working->pid_file = strdup(q); 107436817Sache else if (isdigit(*q)) 107536817Sache goto got_sig; 107659003Shm else 107780646Sobrien errx(1, 107880646Sobrien "illegal pid file or signal number in config file:\n%s", 107980646Sobrien errline); 108025443Sache } 108136817Sache if (eol) 108259003Shm q = NULL; 108336817Sache else { 108459003Shm q = parse = sob(++parse); /* Optional field */ 108559003Shm *(parse = son(parse)) = '\0'; 108636817Sache } 108736817Sache 108836817Sache working->sig = SIGHUP; 108936817Sache if (q && *q) { 109036817Sache if (isdigit(*q)) { 109159003Shm got_sig: 109236817Sache working->sig = atoi(q); 109336817Sache } else { 109459003Shm err_sig: 109580646Sobrien errx(1, 109680646Sobrien "illegal signal number in config file:\n%s", 109780646Sobrien errline); 109836817Sache } 109936817Sache if (working->sig < 1 || working->sig >= NSIG) 110036817Sache goto err_sig; 110136817Sache } 1102111768Sgad 1103111768Sgad /* 1104111768Sgad * Finish figuring out what pid-file to use (if any) in 1105111768Sgad * later processing if this logfile needs to be rotated. 1106111768Sgad */ 1107111768Sgad if ((working->flags & CE_NOSIGNAL) == CE_NOSIGNAL) { 1108111768Sgad /* 1109111768Sgad * This config-entry specified 'n' for nosignal, 1110111768Sgad * see if it also specified an explicit pid_file. 1111111768Sgad * This would be a pretty pointless combination. 1112111768Sgad */ 1113111768Sgad if (working->pid_file != NULL) { 1114111768Sgad warnx("Ignoring '%s' because flag 'n' was specified in line:\n%s", 1115111768Sgad working->pid_file, errline); 1116111768Sgad free(working->pid_file); 1117111768Sgad working->pid_file = NULL; 1118111768Sgad } 1119111768Sgad } else if (working->pid_file == NULL) { 1120111768Sgad /* 1121111768Sgad * This entry did not specify the 'n' flag, which 1122111768Sgad * means it should signal syslogd unless it had 1123112003Sgad * specified some other pid-file (and obviously the 1124112003Sgad * syslog pid-file will not be for a process-group). 1125112003Sgad * Also, we should only try to notify syslog if we 1126112003Sgad * are root. 1127111768Sgad */ 1128112003Sgad if (working->flags & CE_SIGNALGROUP) { 1129112003Sgad warnx("Ignoring flag 'U' in line:\n%s", 1130112003Sgad errline); 1131112003Sgad working->flags &= ~CE_SIGNALGROUP; 1132112003Sgad } 1133111768Sgad if (needroot) 1134111768Sgad working->pid_file = strdup(_PATH_SYSLOGPID); 1135111768Sgad } 1136111768Sgad 1137112020Sgad /* 1138112020Sgad * Add this entry to the appropriate list of entries, unless 1139112020Sgad * it was some kind of special entry (eg: <default>). 1140112020Sgad */ 1141112020Sgad if (special) { 1142112020Sgad ; /* Do not add to any list */ 1143112020Sgad } else if (working->flags & CE_GLOB) { 1144112020Sgad if (!*glob_p) 1145112020Sgad *glob_p = working; 1146112020Sgad else 1147112020Sgad lastglob->next = working; 1148112020Sgad lastglob = working; 1149112020Sgad } else { 1150112020Sgad if (!*work_p) 1151112020Sgad *work_p = working; 1152112020Sgad else 1153112020Sgad lastwork->next = working; 1154112020Sgad lastwork = working; 1155112020Sgad } 1156112020Sgad 115759003Shm free(errline); 1158111768Sgad errline = NULL; 115959003Shm } 116013244Sgraichen} 116113244Sgraichen 116259003Shmstatic char * 116359004Shmmissing_field(char *p, char *errline) 116413244Sgraichen{ 116580646Sobrien 116659003Shm if (!p || !*p) 116759003Shm errx(1, "missing field in config file:\n%s", errline); 116859003Shm return (p); 116913244Sgraichen} 117013244Sgraichen 117159004Shmstatic void 1172111780Sgaddotrim(const struct conf_entry *ent, char *log, int numdays, int flags) 117313244Sgraichen{ 117471299Sjedgar char dirpart[MAXPATHLEN], namepart[MAXPATHLEN]; 117571299Sjedgar char file1[MAXPATHLEN], file2[MAXPATHLEN]; 117671299Sjedgar char zfile1[MAXPATHLEN], zfile2[MAXPATHLEN]; 117780638Sobrien char jfile1[MAXPATHLEN]; 117894352Ssheldonh char tfile[MAXPATHLEN]; 117959003Shm int notified, need_notification, fd, _numdays; 118059003Shm struct stat st; 118113244Sgraichen 118259004Shm if (archtodir) { 118359004Shm char *p; 118413244Sgraichen 118559004Shm /* build complete name of archive directory into dirpart */ 118659004Shm if (*archdirname == '/') { /* absolute */ 118771299Sjedgar strlcpy(dirpart, archdirname, sizeof(dirpart)); 118859004Shm } else { /* relative */ 118959004Shm /* get directory part of logfile */ 119071299Sjedgar strlcpy(dirpart, log, sizeof(dirpart)); 119159004Shm if ((p = rindex(dirpart, '/')) == NULL) 119259004Shm dirpart[0] = '\0'; 119359004Shm else 119459004Shm *(p + 1) = '\0'; 119571299Sjedgar strlcat(dirpart, archdirname, sizeof(dirpart)); 119659004Shm } 119759004Shm 119859004Shm /* check if archive directory exists, if not, create it */ 119959004Shm if (lstat(dirpart, &st)) 1200114137Sgad createdir(ent, dirpart); 120159004Shm 120259004Shm /* get filename part of logfile */ 120359004Shm if ((p = rindex(log, '/')) == NULL) 120471299Sjedgar strlcpy(namepart, log, sizeof(namepart)); 120559004Shm else 120671299Sjedgar strlcpy(namepart, p + 1, sizeof(namepart)); 120759004Shm 120859004Shm /* name of oldest log */ 120980646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s.%d", dirpart, 121080646Sobrien namepart, numdays); 121171299Sjedgar (void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1, 121271299Sjedgar COMPRESS_POSTFIX); 121380638Sobrien snprintf(jfile1, sizeof(jfile1), "%s%s", file1, 121480638Sobrien BZCOMPRESS_POSTFIX); 121559004Shm } else { 121659004Shm /* name of oldest log */ 121771299Sjedgar (void) snprintf(file1, sizeof(file1), "%s.%d", log, numdays); 121871299Sjedgar (void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1, 121971299Sjedgar COMPRESS_POSTFIX); 122080638Sobrien snprintf(jfile1, sizeof(jfile1), "%s%s", file1, 122180638Sobrien BZCOMPRESS_POSTFIX); 122259004Shm } 122359004Shm 122459003Shm if (noaction) { 1225111967Sgad printf("\trm -f %s\n", file1); 1226111967Sgad printf("\trm -f %s\n", zfile1); 1227111967Sgad printf("\trm -f %s\n", jfile1); 122859003Shm } else { 122959003Shm (void) unlink(file1); 123059003Shm (void) unlink(zfile1); 123180638Sobrien (void) unlink(jfile1); 123259003Shm } 123313244Sgraichen 123459003Shm /* Move down log files */ 123518188Sjkh _numdays = numdays; /* preserve */ 123659003Shm while (numdays--) { 123759004Shm 123871299Sjedgar (void) strlcpy(file2, file1, sizeof(file2)); 123959004Shm 124059004Shm if (archtodir) 124180646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s.%d", 124280646Sobrien dirpart, namepart, numdays); 124359004Shm else 124480646Sobrien (void) snprintf(file1, sizeof(file1), "%s.%d", log, 124580646Sobrien numdays); 124659004Shm 124771299Sjedgar (void) strlcpy(zfile1, file1, sizeof(zfile1)); 124871299Sjedgar (void) strlcpy(zfile2, file2, sizeof(zfile2)); 124959003Shm if (lstat(file1, &st)) { 125080646Sobrien (void) strlcat(zfile1, COMPRESS_POSTFIX, 125180646Sobrien sizeof(zfile1)); 125280646Sobrien (void) strlcat(zfile2, COMPRESS_POSTFIX, 125380646Sobrien sizeof(zfile2)); 125480638Sobrien if (lstat(zfile1, &st)) { 125580638Sobrien strlcpy(zfile1, file1, sizeof(zfile1)); 125680638Sobrien strlcpy(zfile2, file2, sizeof(zfile2)); 125780638Sobrien strlcat(zfile1, BZCOMPRESS_POSTFIX, 125880638Sobrien sizeof(zfile1)); 125980638Sobrien strlcat(zfile2, BZCOMPRESS_POSTFIX, 126080638Sobrien sizeof(zfile2)); 126180638Sobrien if (lstat(zfile1, &st)) 126280638Sobrien continue; 126380638Sobrien } 126459003Shm } 126559003Shm if (noaction) { 1266111967Sgad printf("\tmv %s %s\n", zfile1, zfile2); 1267111967Sgad printf("\tchmod %o %s\n", ent->permissions, zfile2); 1268111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1269111967Sgad printf("\tchown %u:%u %s\n", 1270111779Sgad ent->uid, ent->gid, zfile2); 127159003Shm } else { 127259003Shm (void) rename(zfile1, zfile2); 1273111780Sgad if (chmod(zfile2, ent->permissions)) 1274111780Sgad warn("can't chmod %s", file2); 1275111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1276111779Sgad if (chown(zfile2, ent->uid, ent->gid)) 1277111779Sgad warn("can't chown %s", zfile2); 127859003Shm } 127959003Shm } 1280111388Sgad if (!noaction && !(flags & CE_BINARY)) { 1281111388Sgad /* Report the trimming to the old log */ 1282111779Sgad (void) log_trim(log, ent); 1283111388Sgad } 128413244Sgraichen 128518188Sjkh if (!_numdays) { 128618075Sjkh if (noaction) 1287111967Sgad printf("\trm %s\n", log); 128818075Sjkh else 128959003Shm (void) unlink(log); 129059003Shm } else { 129118075Sjkh if (noaction) 1292111967Sgad printf("\tmv %s to %s\n", log, file1); 129359004Shm else { 129459004Shm if (archtodir) 1295111780Sgad movefile(log, file1, ent->permissions, ent->uid, 1296111779Sgad ent->gid); 129759004Shm else 129859004Shm (void) rename(log, file1); 129959004Shm } 130018075Sjkh } 130118075Sjkh 1302111781Sgad /* Now move the new log file into place */ 1303114137Sgad /* XXX - We should replace the above 'rename' with 'link(log, file1)' 1304114137Sgad * then replace the following with 'createfile(ent)' */ 1305111967Sgad strlcpy(tfile, log, sizeof(tfile)); 1306111967Sgad strlcat(tfile, ".XXXXXX", sizeof(tfile)); 1307111967Sgad if (noaction) { 1308111781Sgad printf("Start new log...\n"); 1309111967Sgad printf("\tmktemp %s\n", tfile); 1310111967Sgad } else { 131194352Ssheldonh mkstemp(tfile); 1312111780Sgad fd = creat(tfile, ent->permissions); 131359003Shm if (fd < 0) 131459003Shm err(1, "can't start new log"); 1315111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1316111779Sgad if (fchown(fd, ent->uid, ent->gid)) 1317111779Sgad err(1, "can't chown new log file"); 131859003Shm (void) close(fd); 1319111388Sgad if (!(flags & CE_BINARY)) { 1320111388Sgad /* Add status message to new log file */ 1321111779Sgad if (log_trim(tfile, ent)) 132259003Shm err(1, "can't add status message to log"); 1323111388Sgad } 132459003Shm } 1325111967Sgad if (noaction) { 1326111967Sgad printf("\tchmod %o %s\n", ent->permissions, tfile); 1327111967Sgad printf("\tmv %s %s\n", tfile, log); 1328111967Sgad } else { 1329111780Sgad (void) chmod(tfile, ent->permissions); 133094352Ssheldonh if (rename(tfile, log) < 0) { 133194352Ssheldonh err(1, "can't start new log"); 133294352Ssheldonh (void) unlink(tfile); 133394352Ssheldonh } 133494352Ssheldonh } 133525443Sache 1336111966Sgad /* 1337111966Sgad * Find out if there is a process to signal. If nosignal (-s) was 1338111966Sgad * specified, then do not signal any process. Note that nosignal 1339111966Sgad * will trigger a warning message if the rotated logfile needs to 1340111966Sgad * be compressed, *unless* -R was specified. This is because there 1341111966Sgad * presumably still are process(es) writing to the old logfile, but 1342111966Sgad * we assume that a -sR request comes from a process which writes 1343111966Sgad * to the logfile, and as such, that process has already made sure 1344111966Sgad * that the logfile is not presently in use. 1345111966Sgad */ 134625443Sache need_notification = notified = 0; 1347111779Sgad if (ent->pid_file != NULL) { 134825443Sache need_notification = 1; 1349111966Sgad if (!nosignal) 1350112003Sgad notified = send_signal(ent); /* the normal case! */ 1351111966Sgad else if (rotatereq) 1352111966Sgad need_notification = 0; 135325443Sache } 1354112003Sgad 135580638Sobrien if ((flags & CE_COMPACT) || (flags & CE_BZCOMPACT)) { 135625443Sache if (need_notification && !notified) 135780646Sobrien warnx( 1358112003Sgad "log %s.0 not compressed because daemon(s) not notified", 135980646Sobrien log); 136025443Sache else if (noaction) 1361111967Sgad if (flags & CE_COMPACT) 1362111967Sgad printf("\tgzip %s.0\n", log); 1363111967Sgad else 1364111967Sgad printf("\tbzip2 %s.0\n", log); 136525443Sache else { 136625443Sache if (notified) { 136725443Sache if (verbose) 1368112003Sgad printf("small pause to allow daemon(s) to close log\n"); 136931460Sache sleep(10); 137025443Sache } 137159004Shm if (archtodir) { 137280646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s", 137380646Sobrien dirpart, namepart); 137480638Sobrien if (flags & CE_COMPACT) 1375107916Ssobomax compress_log(file1, 1376107916Ssobomax flags & CE_COMPACTWAIT); 137780638Sobrien else if (flags & CE_BZCOMPACT) 1378107916Ssobomax bzcompress_log(file1, 1379107916Ssobomax flags & CE_COMPACTWAIT); 138059004Shm } else { 138180638Sobrien if (flags & CE_COMPACT) 1382107916Ssobomax compress_log(log, 1383107916Ssobomax flags & CE_COMPACTWAIT); 138480638Sobrien else if (flags & CE_BZCOMPACT) 1385107916Ssobomax bzcompress_log(log, 1386107916Ssobomax flags & CE_COMPACTWAIT); 138759004Shm } 138825443Sache } 138959003Shm } 139013244Sgraichen} 139113244Sgraichen 139213244Sgraichen/* Log the fact that the logs were turned over */ 139359004Shmstatic int 1394111768Sgadlog_trim(const char *log, const struct conf_entry *log_ent) 139513244Sgraichen{ 139659003Shm FILE *f; 1397111388Sgad const char *xtra; 139859003Shm 139959003Shm if ((f = fopen(log, "a")) == NULL) 140059003Shm return (-1); 1401111388Sgad xtra = ""; 1402111768Sgad if (log_ent->def_cfg) 1403111388Sgad xtra = " using <default> rule"; 1404114137Sgad if (log_ent->firstcreate) 1405114137Sgad fprintf(f, "%s %s newsyslog[%d]: logfile first created%s\n", 1406114137Sgad daytime, hostname, (int) getpid(), xtra); 1407114137Sgad else if (log_ent->r_reason != NULL) 1408111772Sgad fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s%s\n", 1409111772Sgad daytime, hostname, (int) getpid(), log_ent->r_reason, xtra); 1410111772Sgad else 1411111772Sgad fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s\n", 1412111772Sgad daytime, hostname, (int) getpid(), xtra); 141359003Shm if (fclose(f) == EOF) 141459003Shm err(1, "log_trim: fclose:"); 141559003Shm return (0); 141613244Sgraichen} 141713244Sgraichen 141859004Shm/* Fork of gzip to compress the old log file */ 141959004Shmstatic void 1420107916Ssobomaxcompress_log(char *log, int dowait) 142113244Sgraichen{ 142259003Shm pid_t pid; 142371299Sjedgar char tmp[MAXPATHLEN]; 142459003Shm 1425107916Ssobomax while (dowait && (wait(NULL) > 0 || errno == EINTR)) 1426107916Ssobomax ; 142771299Sjedgar (void) snprintf(tmp, sizeof(tmp), "%s.0", log); 142825443Sache pid = fork(); 142959003Shm if (pid < 0) 143080638Sobrien err(1, "gzip fork"); 143159003Shm else if (!pid) { 143279452Sbrian (void) execl(_PATH_GZIP, _PATH_GZIP, "-f", tmp, (char *)0); 143343071Swollman err(1, _PATH_GZIP); 143459003Shm } 143513244Sgraichen} 143613244Sgraichen 143780638Sobrien/* Fork of bzip2 to compress the old log file */ 143880638Sobrienstatic void 1439107916Ssobomaxbzcompress_log(char *log, int dowait) 144080638Sobrien{ 144180638Sobrien pid_t pid; 144280638Sobrien char tmp[MAXPATHLEN]; 144380638Sobrien 1444107916Ssobomax while (dowait && (wait(NULL) > 0 || errno == EINTR)) 1445107916Ssobomax ; 144680638Sobrien snprintf(tmp, sizeof(tmp), "%s.0", log); 144780638Sobrien pid = fork(); 144880638Sobrien if (pid < 0) 144980638Sobrien err(1, "bzip2 fork"); 145080638Sobrien else if (!pid) { 145186360Sobrien execl(_PATH_BZIP2, _PATH_BZIP2, "-f", tmp, (char *)0); 145280638Sobrien err(1, _PATH_BZIP2); 145380638Sobrien } 145480638Sobrien} 145580638Sobrien 145613244Sgraichen/* Return size in kilobytes of a file */ 145759004Shmstatic int 145859004Shmsizefile(char *file) 145913244Sgraichen{ 146059003Shm struct stat sb; 146113244Sgraichen 146259003Shm if (stat(file, &sb) < 0) 146359003Shm return (-1); 146459003Shm return (kbytes(dbtob(sb.st_blocks))); 146513244Sgraichen} 146613244Sgraichen 146713244Sgraichen/* Return the age of old log file (file.0) */ 146859004Shmstatic int 146959004Shmage_old_log(char *file) 147013244Sgraichen{ 147159003Shm struct stat sb; 1472114764Sgad char *endp; 1473114764Sgad char tmp[MAXPATHLEN + sizeof(".0") + sizeof(COMPRESS_POSTFIX) + 1474114764Sgad sizeof(BZCOMPRESS_POSTFIX) + 1]; 147513244Sgraichen 147659004Shm if (archtodir) { 147759004Shm char *p; 147859004Shm 147959004Shm /* build name of archive directory into tmp */ 148059004Shm if (*archdirname == '/') { /* absolute */ 148171299Sjedgar strlcpy(tmp, archdirname, sizeof(tmp)); 148259004Shm } else { /* relative */ 148359004Shm /* get directory part of logfile */ 148471299Sjedgar strlcpy(tmp, file, sizeof(tmp)); 148559004Shm if ((p = rindex(tmp, '/')) == NULL) 148659004Shm tmp[0] = '\0'; 148759004Shm else 148859004Shm *(p + 1) = '\0'; 148971299Sjedgar strlcat(tmp, archdirname, sizeof(tmp)); 149059004Shm } 149159004Shm 149271299Sjedgar strlcat(tmp, "/", sizeof(tmp)); 149359004Shm 149459004Shm /* get filename part of logfile */ 149559004Shm if ((p = rindex(file, '/')) == NULL) 149671299Sjedgar strlcat(tmp, file, sizeof(tmp)); 149759004Shm else 149871299Sjedgar strlcat(tmp, p + 1, sizeof(tmp)); 149959004Shm } else { 150071299Sjedgar (void) strlcpy(tmp, file, sizeof(tmp)); 150159004Shm } 150259004Shm 1503114764Sgad strlcat(tmp, ".0", sizeof(tmp)); 1504114764Sgad if (stat(tmp, &sb) < 0) { 1505114764Sgad /* 1506114764Sgad * A plain '.0' file does not exist. Try again, first 1507114764Sgad * with the added suffix of '.gz', then with an added 1508114764Sgad * suffix of '.bz2' instead of '.gz'. 1509114764Sgad */ 1510114764Sgad endp = strchr(tmp, '\0'); 1511114764Sgad strlcat(tmp, COMPRESS_POSTFIX, sizeof(tmp)); 1512114764Sgad if (stat(tmp, &sb) < 0) { 1513114764Sgad *endp = '\0'; /* Remove .gz */ 1514114764Sgad strlcat(tmp, BZCOMPRESS_POSTFIX, sizeof(tmp)); 1515114764Sgad if (stat(tmp, &sb) < 0) 1516114764Sgad return (-1); 1517114764Sgad } 1518114764Sgad } 1519111781Sgad return ((int)(timenow - sb.st_mtime + 1800) / 3600); 152013244Sgraichen} 152113244Sgraichen 152213244Sgraichen/* Skip Over Blanks */ 1523111820Sgadstatic char * 152459004Shmsob(char *p) 152513244Sgraichen{ 152659003Shm while (p && *p && isspace(*p)) 152759003Shm p++; 152859003Shm return (p); 152913244Sgraichen} 153013244Sgraichen 153113244Sgraichen/* Skip Over Non-Blanks */ 1532111820Sgadstatic char * 153359004Shmson(char *p) 153413244Sgraichen{ 153559003Shm while (p && *p && !isspace(*p)) 153659003Shm p++; 153759003Shm return (p); 153813244Sgraichen} 153943071Swollman 1540119102Sgad/* Check if string is actually a number */ 1541119102Sgadstatic int 1542119102Sgadisnumberstr(const char *string) 1543119102Sgad{ 1544119102Sgad while (*string) { 1545119102Sgad if (!isdigitch(*string++)) 1546119102Sgad return (0); 1547119102Sgad } 1548119102Sgad return (1); 1549119102Sgad} 1550119102Sgad 155143071Swollman/* 155259004Shm * Parse a limited subset of ISO 8601. The specific format is as follows: 155343071Swollman * 155459004Shm * [CC[YY[MM[DD]]]][THH[MM[SS]]] (where `T' is the literal letter) 155543071Swollman * 155659004Shm * We don't accept a timezone specification; missing fields (including timezone) 155759004Shm * are defaulted to the current date but time zero. 155843071Swollman */ 155943071Swollmanstatic time_t 156093659Scjcparse8601(char *s, char *errline) 156143071Swollman{ 156259003Shm char *t; 156393659Scjc time_t tsecs; 156459003Shm struct tm tm, *tmp; 156559003Shm u_long ul; 156643071Swollman 156743071Swollman tmp = localtime(&timenow); 156843071Swollman tm = *tmp; 156943071Swollman 157043071Swollman tm.tm_hour = tm.tm_min = tm.tm_sec = 0; 157143071Swollman 157243071Swollman ul = strtoul(s, &t, 10); 157343071Swollman if (*t != '\0' && *t != 'T') 1574111392Sgad return (-1); 157543071Swollman 157643071Swollman /* 157759003Shm * Now t points either to the end of the string (if no time was 157859003Shm * provided) or to the letter `T' which separates date and time in 157959003Shm * ISO 8601. The pointer arithmetic is the same for either case. 158043071Swollman */ 158143071Swollman switch (t - s) { 158243071Swollman case 8: 158343071Swollman tm.tm_year = ((ul / 1000000) - 19) * 100; 158443071Swollman ul = ul % 1000000; 158543071Swollman case 6: 158680666Swollman tm.tm_year -= tm.tm_year % 100; 158743071Swollman tm.tm_year += ul / 10000; 158843071Swollman ul = ul % 10000; 158943071Swollman case 4: 159043071Swollman tm.tm_mon = (ul / 100) - 1; 159143071Swollman ul = ul % 100; 159243071Swollman case 2: 159343071Swollman tm.tm_mday = ul; 159443071Swollman case 0: 159543071Swollman break; 159643071Swollman default: 1597111392Sgad return (-1); 159843071Swollman } 159943071Swollman 160043071Swollman /* sanity check */ 160143071Swollman if (tm.tm_year < 70 || tm.tm_mon < 0 || tm.tm_mon > 12 160243071Swollman || tm.tm_mday < 1 || tm.tm_mday > 31) 1603111392Sgad return (-1); 160443071Swollman 160543071Swollman if (*t != '\0') { 160643071Swollman s = ++t; 160743071Swollman ul = strtoul(s, &t, 10); 160843071Swollman if (*t != '\0' && !isspace(*t)) 1609111392Sgad return (-1); 161043071Swollman 161143071Swollman switch (t - s) { 161243071Swollman case 6: 161343071Swollman tm.tm_sec = ul % 100; 161443071Swollman ul /= 100; 161543071Swollman case 4: 161643071Swollman tm.tm_min = ul % 100; 161743071Swollman ul /= 100; 161843071Swollman case 2: 161943071Swollman tm.tm_hour = ul; 162043071Swollman case 0: 162143071Swollman break; 162243071Swollman default: 1623111392Sgad return (-1); 162443071Swollman } 162543071Swollman 162643071Swollman /* sanity check */ 162743071Swollman if (tm.tm_sec < 0 || tm.tm_sec > 60 || tm.tm_min < 0 162843071Swollman || tm.tm_min > 59 || tm.tm_hour < 0 || tm.tm_hour > 23) 1629111392Sgad return (-1); 163043071Swollman } 163193659Scjc if ((tsecs = mktime(&tm)) == -1) 163299209Smaxim errx(1, "nonexistent time:\n%s", errline); 1633111392Sgad return (tsecs); 163443071Swollman} 163559004Shm 163659004Shm/* physically move file */ 163759004Shmstatic void 1638111779Sgadmovefile(char *from, char *to, int perm, uid_t owner_uid, gid_t group_gid) 163959004Shm{ 164059004Shm FILE *src, *dst; 164159004Shm int c; 164259004Shm 164359004Shm if ((src = fopen(from, "r")) == NULL) 164459004Shm err(1, "can't fopen %s for reading", from); 164559004Shm if ((dst = fopen(to, "w")) == NULL) 164659004Shm err(1, "can't fopen %s for writing", to); 1647111779Sgad if (owner_uid != (uid_t)-1 || group_gid != (gid_t)-1) { 1648111779Sgad if (fchown(fileno(dst), owner_uid, group_gid)) 1649111779Sgad err(1, "can't fchown %s", to); 1650111779Sgad } 165159004Shm if (fchmod(fileno(dst), perm)) 165259004Shm err(1, "can't fchmod %s", to); 165359004Shm 165459004Shm while ((c = getc(src)) != EOF) { 165559004Shm if ((putc(c, dst)) == EOF) 165659004Shm err(1, "error writing to %s", to); 165759004Shm } 165859004Shm 165959004Shm if (ferror(src)) 166059004Shm err(1, "error reading from %s", from); 166159004Shm if ((fclose(src)) != 0) 166259004Shm err(1, "can't fclose %s", to); 166359004Shm if ((fclose(dst)) != 0) 166459004Shm err(1, "can't fclose %s", from); 166559004Shm if ((unlink(from)) != 0) 166659004Shm err(1, "can't unlink %s", from); 166759004Shm} 166859004Shm 166959004Shm/* create one or more directory components of a path */ 167059004Shmstatic void 1671114137Sgadcreatedir(const struct conf_entry *ent, char *dirpart) 167259004Shm{ 1673111398Sgad int res; 167459004Shm char *s, *d; 167571299Sjedgar char mkdirpath[MAXPATHLEN]; 167659004Shm struct stat st; 167759004Shm 167859004Shm s = dirpart; 167959004Shm d = mkdirpath; 168059004Shm 168159004Shm for (;;) { 168259004Shm *d++ = *s++; 1683111398Sgad if (*s != '/' && *s != '\0') 1684111398Sgad continue; 1685111398Sgad *d = '\0'; 1686111398Sgad res = lstat(mkdirpath, &st); 1687111398Sgad if (res != 0) { 1688111398Sgad if (noaction) { 1689111967Sgad printf("\tmkdir %s\n", mkdirpath); 1690111398Sgad } else { 1691111398Sgad res = mkdir(mkdirpath, 0755); 1692111398Sgad if (res != 0) 1693111398Sgad err(1, "Error on mkdir(\"%s\") for -a", 1694111398Sgad mkdirpath); 1695111398Sgad } 169659004Shm } 169759004Shm if (*s == '\0') 169859004Shm break; 169959004Shm } 1700114137Sgad if (verbose) { 1701114137Sgad if (ent->firstcreate) 1702114137Sgad printf("Created directory '%s' for new %s\n", 1703114137Sgad dirpart, ent->log); 1704114137Sgad else 1705114137Sgad printf("Created directory '%s' for -a\n", dirpart); 1706114137Sgad } 170759004Shm} 170859004Shm 1709114137Sgad/* 1710114137Sgad * Create a new log file, destroying any currently-existing version 1711114137Sgad * of the log file in the process. If the caller wants a backup copy 1712114137Sgad * of the file to exist, they should call 'link(logfile,logbackup)' 1713114137Sgad * before calling this routine. 1714114137Sgad */ 1715114137Sgadvoid 1716114137Sgadcreatelog(const struct conf_entry *ent) 1717114137Sgad{ 1718114137Sgad int fd, failed; 1719114137Sgad struct stat st; 1720114137Sgad char *realfile, *slash, tempfile[MAXPATHLEN]; 1721114137Sgad 1722114137Sgad fd = -1; 1723114137Sgad realfile = ent->log; 1724114137Sgad 1725114137Sgad /* 1726114137Sgad * If this log file is being created for the first time (-C option), 1727114137Sgad * then it may also be true that the parent directory does not exist 1728114137Sgad * yet. Check, and create that directory if it is missing. 1729114137Sgad */ 1730114137Sgad if (ent->firstcreate) { 1731114137Sgad strlcpy(tempfile, realfile, sizeof(tempfile)); 1732114137Sgad slash = strrchr(tempfile, '/'); 1733114137Sgad if (slash != NULL) { 1734114137Sgad *slash = '\0'; 1735114137Sgad failed = lstat(tempfile, &st); 1736114137Sgad if (failed && errno != ENOENT) 1737114137Sgad err(1, "Error on lstat(%s)", tempfile); 1738114137Sgad if (failed) 1739114137Sgad createdir(ent, tempfile); 1740114137Sgad else if (!S_ISDIR(st.st_mode)) 1741114137Sgad errx(1, "%s exists but is not a directory", 1742114137Sgad tempfile); 1743114137Sgad } 1744114137Sgad } 1745114137Sgad 1746114137Sgad /* 1747114137Sgad * First create an unused filename, so it can be chown'ed and 1748114137Sgad * chmod'ed before it is moved into the real location. mkstemp 1749114137Sgad * will create the file mode=600 & owned by us. Note that all 1750114137Sgad * temp files will have a suffix of '.z<something>'. 1751114137Sgad */ 1752114137Sgad strlcpy(tempfile, realfile, sizeof(tempfile)); 1753114137Sgad strlcat(tempfile, ".zXXXXXX", sizeof(tempfile)); 1754114137Sgad if (noaction) 1755114137Sgad printf("\tmktemp %s\n", tempfile); 1756114137Sgad else { 1757114137Sgad fd = mkstemp(tempfile); 1758114137Sgad if (fd < 0) 1759114137Sgad err(1, "can't mkstemp logfile %s", tempfile); 1760114137Sgad 1761114137Sgad /* 1762114137Sgad * Add status message to what will become the new log file. 1763114137Sgad */ 1764114137Sgad if (!(ent->flags & CE_BINARY)) { 1765114137Sgad if (log_trim(tempfile, ent)) 1766114137Sgad err(1, "can't add status message to log"); 1767114137Sgad } 1768114137Sgad } 1769114137Sgad 1770114137Sgad /* Change the owner/group, if we are supposed to */ 1771114137Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) { 1772114137Sgad if (noaction) 1773114137Sgad printf("\tchown %u:%u %s\n", ent->uid, ent->gid, 1774114137Sgad tempfile); 1775114137Sgad else { 1776114137Sgad failed = fchown(fd, ent->uid, ent->gid); 1777114137Sgad if (failed) 1778114137Sgad err(1, "can't fchown temp file %s", tempfile); 1779114137Sgad } 1780114137Sgad } 1781114137Sgad 1782114137Sgad /* 1783114137Sgad * Note that if the real logfile still exists, and if the call 1784114137Sgad * to rename() fails, then "neither the old file nor the new 1785114137Sgad * file shall be changed or created" (to quote the standard). 1786114137Sgad * If the call succeeds, then the file will be replaced without 1787114137Sgad * any window where some other process might find that the file 1788114137Sgad * did not exist. 1789114137Sgad * XXX - ? It may be that for some error conditions, we could 1790114137Sgad * retry by first removing the realfile and then renaming. 1791114137Sgad */ 1792114137Sgad if (noaction) { 1793114137Sgad printf("\tchmod %o %s\n", ent->permissions, tempfile); 1794114137Sgad printf("\tmv %s %s\n", tempfile, realfile); 1795114137Sgad } else { 1796114137Sgad failed = fchmod(fd, ent->permissions); 1797114137Sgad if (failed) 1798114137Sgad err(1, "can't fchmod temp file '%s'", tempfile); 1799114137Sgad failed = rename(tempfile, realfile); 1800114137Sgad if (failed) 1801114137Sgad err(1, "can't mv %s to %s", tempfile, realfile); 1802114137Sgad } 1803114137Sgad 1804114137Sgad if (fd >= 0) 1805114137Sgad close(fd); 1806114137Sgad} 1807114137Sgad 180859004Shm/*- 180959004Shm * Parse a cyclic time specification, the format is as follows: 181059004Shm * 181159004Shm * [Dhh] or [Wd[Dhh]] or [Mdd[Dhh]] 181259004Shm * 181359004Shm * to rotate a logfile cyclic at 181459004Shm * 181559004Shm * - every day (D) within a specific hour (hh) (hh = 0...23) 181659004Shm * - once a week (W) at a specific day (d) OR (d = 0..6, 0 = Sunday) 181759004Shm * - once a month (M) at a specific day (d) (d = 1..31,l|L) 181859004Shm * 181959004Shm * We don't accept a timezone specification; missing fields 182059004Shm * are defaulted to the current date but time zero. 182159004Shm */ 182259004Shmstatic time_t 182393659ScjcparseDWM(char *s, char *errline) 182459004Shm{ 182559004Shm char *t; 182693659Scjc time_t tsecs; 182759004Shm struct tm tm, *tmp; 182880742Sobrien long l; 182959004Shm int nd; 183059004Shm static int mtab[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; 183159004Shm int WMseen = 0; 183259004Shm int Dseen = 0; 183359004Shm 183459004Shm tmp = localtime(&timenow); 183559004Shm tm = *tmp; 183659004Shm 183759004Shm /* set no. of days per month */ 183859004Shm 183959004Shm nd = mtab[tm.tm_mon]; 184059004Shm 184159004Shm if (tm.tm_mon == 1) { 184259004Shm if (((tm.tm_year + 1900) % 4 == 0) && 184359004Shm ((tm.tm_year + 1900) % 100 != 0) && 184459004Shm ((tm.tm_year + 1900) % 400 == 0)) { 184559004Shm nd++; /* leap year, 29 days in february */ 184659004Shm } 184759004Shm } 184859004Shm tm.tm_hour = tm.tm_min = tm.tm_sec = 0; 184959004Shm 185059004Shm for (;;) { 185159004Shm switch (*s) { 185259004Shm case 'D': 185359004Shm if (Dseen) 1854111392Sgad return (-1); 185559004Shm Dseen++; 185659004Shm s++; 185780742Sobrien l = strtol(s, &t, 10); 185880742Sobrien if (l < 0 || l > 23) 1859111392Sgad return (-1); 186080742Sobrien tm.tm_hour = l; 186159004Shm break; 186259004Shm 186359004Shm case 'W': 186459004Shm if (WMseen) 1865111392Sgad return (-1); 186659004Shm WMseen++; 186759004Shm s++; 186880742Sobrien l = strtol(s, &t, 10); 186980742Sobrien if (l < 0 || l > 6) 1870111392Sgad return (-1); 187180742Sobrien if (l != tm.tm_wday) { 187259004Shm int save; 187359004Shm 187480742Sobrien if (l < tm.tm_wday) { 187559004Shm save = 6 - tm.tm_wday; 187680742Sobrien save += (l + 1); 187759004Shm } else { 187880742Sobrien save = l - tm.tm_wday; 187959004Shm } 188059004Shm 188159004Shm tm.tm_mday += save; 188259004Shm 188359004Shm if (tm.tm_mday > nd) { 188459004Shm tm.tm_mon++; 188559004Shm tm.tm_mday = tm.tm_mday - nd; 188659004Shm } 188759004Shm } 188859004Shm break; 188959004Shm 189059004Shm case 'M': 189159004Shm if (WMseen) 1892111392Sgad return (-1); 189359004Shm WMseen++; 189459004Shm s++; 189559004Shm if (tolower(*s) == 'l') { 189659004Shm tm.tm_mday = nd; 189759004Shm s++; 189859004Shm t = s; 189959004Shm } else { 190080742Sobrien l = strtol(s, &t, 10); 190180742Sobrien if (l < 1 || l > 31) 1902111392Sgad return (-1); 190359004Shm 190480742Sobrien if (l > nd) 1905111392Sgad return (-1); 190680742Sobrien tm.tm_mday = l; 190759004Shm } 190859004Shm break; 190959004Shm 191059004Shm default: 191159004Shm return (-1); 191259004Shm break; 191359004Shm } 191459004Shm 191559004Shm if (*t == '\0' || isspace(*t)) 191659004Shm break; 191759004Shm else 191859004Shm s = t; 191959004Shm } 192093659Scjc if ((tsecs = mktime(&tm)) == -1) 192199209Smaxim errx(1, "nonexistent time:\n%s", errline); 1922111392Sgad return (tsecs); 192359004Shm} 1924