newsyslog.c revision 129975
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 129975 2004-06-02 00:14:28Z 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" 58119998Sgad#include "extern.h" 5943071Swollman 60111768Sgad/* 61111768Sgad * Bit-values for the 'flags' parsed from a config-file entry. 62111768Sgad */ 63111768Sgad#define CE_COMPACT 0x0001 /* Compact the achived log files with gzip. */ 64111768Sgad#define CE_BZCOMPACT 0x0002 /* Compact the achived log files with bzip2. */ 65111781Sgad#define CE_COMPACTWAIT 0x0004 /* wait until compressing one file finishes */ 66111768Sgad /* before starting the next step. */ 67111768Sgad#define CE_BINARY 0x0008 /* Logfile is in binary, do not add status */ 68111768Sgad /* messages to logfile(s) when rotating. */ 69111781Sgad#define CE_NOSIGNAL 0x0010 /* There is no process to signal when */ 70111768Sgad /* trimming this file. */ 71111781Sgad#define CE_TRIMAT 0x0020 /* trim file at a specific time. */ 72111781Sgad#define CE_GLOB 0x0040 /* name of the log is file name pattern. */ 73112003Sgad#define CE_SIGNALGROUP 0x0080 /* Signal a process-group instead of a single */ 74112003Sgad /* process when trimming this file. */ 75114137Sgad#define CE_CREATE 0x0100 /* Create the log file if it does not exist. */ 7643071Swollman 77111781Sgad#define MIN_PID 5 /* Don't touch pids lower than this */ 78111781Sgad#define MAX_PID 99999 /* was lower, see /usr/include/sys/proc.h */ 79111781Sgad 80111781Sgad#define kbytes(size) (((size) + 1023) >> 10) 81111781Sgad 8213244Sgraichenstruct conf_entry { 8359003Shm char *log; /* Name of the log */ 8459003Shm char *pid_file; /* PID file */ 85111772Sgad char *r_reason; /* The reason this file is being rotated */ 86114137Sgad int firstcreate; /* Creating log for the first time (-C). */ 87111772Sgad int rotate; /* Non-zero if this file should be rotated */ 88111779Sgad uid_t uid; /* Owner of log */ 89111779Sgad gid_t gid; /* Group of log */ 9059003Shm int numlogs; /* Number of logs to keep */ 9159003Shm int size; /* Size cutoff to trigger trimming the log */ 9259003Shm int hours; /* Hours between log trimming */ 93120361Sgad struct ptime_data *trim_at; /* Specific time to do trimming */ 9459003Shm int permissions; /* File permissions on the log */ 9580646Sobrien int flags; /* CE_COMPACT, CE_BZCOMPACT, CE_BINARY */ 9659003Shm int sig; /* Signal to send */ 97111388Sgad int def_cfg; /* Using the <default> rule for this file */ 9859003Shm struct conf_entry *next;/* Linked list pointer */ 9913244Sgraichen}; 10013244Sgraichen 101111388Sgad#define DEFAULT_MARKER "<default>" 102111388Sgad 103120361Sgadint dbg_at_times; /* -D Show details of 'trim_at' code */ 104120361Sgad 10559004Shmint archtodir = 0; /* Archive old logfiles to other directory */ 106114137Sgadint createlogs; /* Create (non-GLOB) logfiles which do not */ 107114137Sgad /* already exist. 1=='for entries with */ 108114137Sgad /* C flag', 2=='for all entries'. */ 10959003Shmint verbose = 0; /* Print out what's going on */ 11059003Shmint needroot = 1; /* Root privs are necessary */ 11159003Shmint noaction = 0; /* Don't do anything, just show it */ 112111768Sgadint nosignal; /* Do not send any signals */ 11359003Shmint force = 0; /* Force the trim no matter what */ 114111772Sgadint rotatereq = 0; /* -R = Always rotate the file(s) as given */ 115111772Sgad /* on the command (this also requires */ 116111772Sgad /* that a list of files *are* given on */ 117111772Sgad /* the run command). */ 118111772Sgadchar *requestor; /* The name given on a -R request */ 11959004Shmchar *archdirname; /* Directory path to old logfiles archive */ 120111773Sgadconst char *conf; /* Configuration file to use */ 12159003Shm 122120361Sgadstruct ptime_data *dbg_timenow; /* A "timenow" value set via -D option */ 123120361Sgadstruct ptime_data *timenow; /* The time to use for checking at-fields */ 124120361Sgad 12571299Sjedgarchar hostname[MAXHOSTNAMELEN]; /* hostname */ 126120361Sgadchar daytime[16]; /* The current time in human readable form, 127120361Sgad * used for rotation-tracking messages. */ 12813244Sgraichen 129111773Sgadstatic struct conf_entry *get_worklist(char **files); 130111773Sgadstatic void parse_file(FILE *cf, const char *cfname, struct conf_entry **work_p, 131112020Sgad struct conf_entry **glob_p, struct conf_entry **defconf_p); 13216240Salexstatic char *sob(char *p); 13316240Salexstatic char *son(char *p); 134119102Sgadstatic int isnumberstr(const char *); 13559003Shmstatic char *missing_field(char *p, char *errline); 13659003Shmstatic void do_entry(struct conf_entry * ent); 137112020Sgadstatic void expand_globs(struct conf_entry **work_p, 138112020Sgad struct conf_entry **glob_p); 139112020Sgadstatic void free_clist(struct conf_entry **firstent); 140111388Sgadstatic void free_entry(struct conf_entry *ent); 141111388Sgadstatic struct conf_entry *init_entry(const char *fname, 142111388Sgad struct conf_entry *src_entry); 143111781Sgadstatic void parse_args(int argc, char **argv); 144119904Sgadstatic int parse_doption(const char *doption); 14580640Sobrienstatic void usage(void); 146119927Sgadstatic void dotrim(const struct conf_entry *ent); 147119926Sgadstatic int log_trim(const char *logname, const struct conf_entry *log_ent); 148119926Sgadstatic void compress_log(char *logname, int dowait); 149119926Sgadstatic void bzcompress_log(char *logname, int dowait); 15016240Salexstatic int sizefile(char *file); 15116240Salexstatic int age_old_log(char *file); 152112003Sgadstatic int send_signal(const struct conf_entry *ent); 153129974Sgadstatic void movefile(char *from, char *to); 154114137Sgadstatic void createdir(const struct conf_entry *ent, char *dirpart); 155114137Sgadstatic void createlog(const struct conf_entry *ent); 15613244Sgraichen 157111768Sgad/* 158129975Sgad * All the following take a parameter of 'int', but expect values in the 159129975Sgad * range of unsigned char. Define wrappers which take values of type 'char', 160129975Sgad * whether signed or unsigned, and ensure they end up in the right range. 161111768Sgad */ 162129975Sgad#define isdigitch(Anychar) isdigit((u_char)(Anychar)) 163129975Sgad#define isprintch(Anychar) isprint((u_char)(Anychar)) 164129975Sgad#define isspacech(Anychar) isspace((u_char)(Anychar)) 165129975Sgad#define tolowerch(Anychar) tolower((u_char)(Anychar)) 166111768Sgad 16759004Shmint 16859004Shmmain(int argc, char **argv) 16913244Sgraichen{ 17059003Shm struct conf_entry *p, *q; 17125443Sache 172111781Sgad parse_args(argc, argv); 173111773Sgad argc -= optind; 174111773Sgad argv += optind; 175111773Sgad 17659003Shm if (needroot && getuid() && geteuid()) 17759003Shm errx(1, "must have root privs"); 178111773Sgad p = q = get_worklist(argv); 17959003Shm 18059003Shm while (p) { 181112020Sgad do_entry(p); 18259003Shm p = p->next; 183111388Sgad free_entry(q); 18459003Shm q = p; 18559003Shm } 18695999Smaxim while (wait(NULL) > 0 || errno == EINTR) 18795999Smaxim ; 18859003Shm return (0); 18913244Sgraichen} 19013244Sgraichen 191111388Sgadstatic struct conf_entry * 192111388Sgadinit_entry(const char *fname, struct conf_entry *src_entry) 193111388Sgad{ 194111388Sgad struct conf_entry *tempwork; 195111388Sgad 196111388Sgad if (verbose > 4) 197111388Sgad printf("\t--> [creating entry for %s]\n", fname); 198111388Sgad 199111388Sgad tempwork = malloc(sizeof(struct conf_entry)); 200111388Sgad if (tempwork == NULL) 201111388Sgad err(1, "malloc of conf_entry for %s", fname); 202111388Sgad 203111388Sgad tempwork->log = strdup(fname); 204111388Sgad if (tempwork->log == NULL) 205111388Sgad err(1, "strdup for %s", fname); 206111388Sgad 207111388Sgad if (src_entry != NULL) { 208111388Sgad tempwork->pid_file = NULL; 209111388Sgad if (src_entry->pid_file) 210111388Sgad tempwork->pid_file = strdup(src_entry->pid_file); 211111772Sgad tempwork->r_reason = NULL; 212114137Sgad tempwork->firstcreate = 0; 213111772Sgad tempwork->rotate = 0; 214111388Sgad tempwork->uid = src_entry->uid; 215111388Sgad tempwork->gid = src_entry->gid; 216111388Sgad tempwork->numlogs = src_entry->numlogs; 217111388Sgad tempwork->size = src_entry->size; 218111388Sgad tempwork->hours = src_entry->hours; 219120361Sgad tempwork->trim_at = NULL; 220120361Sgad if (src_entry->trim_at != NULL) 221120361Sgad tempwork->trim_at = ptime_init(src_entry->trim_at); 222111388Sgad tempwork->permissions = src_entry->permissions; 223111388Sgad tempwork->flags = src_entry->flags; 224111388Sgad tempwork->sig = src_entry->sig; 225111388Sgad tempwork->def_cfg = src_entry->def_cfg; 226111388Sgad } else { 227111388Sgad /* Initialize as a "do-nothing" entry */ 228111388Sgad tempwork->pid_file = NULL; 229111772Sgad tempwork->r_reason = NULL; 230114137Sgad tempwork->firstcreate = 0; 231111772Sgad tempwork->rotate = 0; 232111779Sgad tempwork->uid = (uid_t)-1; 233111779Sgad tempwork->gid = (gid_t)-1; 234111388Sgad tempwork->numlogs = 1; 235111388Sgad tempwork->size = -1; 236111388Sgad tempwork->hours = -1; 237120361Sgad tempwork->trim_at = NULL; 238111388Sgad tempwork->permissions = 0; 239111388Sgad tempwork->flags = 0; 240111388Sgad tempwork->sig = SIGHUP; 241111388Sgad tempwork->def_cfg = 0; 242111388Sgad } 243111388Sgad tempwork->next = NULL; 244111388Sgad 245111388Sgad return (tempwork); 246111388Sgad} 247111388Sgad 24859004Shmstatic void 249111388Sgadfree_entry(struct conf_entry *ent) 250111388Sgad{ 251111388Sgad 252111388Sgad if (ent == NULL) 253111388Sgad return; 254111388Sgad 255111388Sgad if (ent->log != NULL) { 256111388Sgad if (verbose > 4) 257111388Sgad printf("\t--> [freeing entry for %s]\n", ent->log); 258111388Sgad free(ent->log); 259111388Sgad ent->log = NULL; 260111388Sgad } 261111388Sgad 262111388Sgad if (ent->pid_file != NULL) { 263111388Sgad free(ent->pid_file); 264111388Sgad ent->pid_file = NULL; 265111388Sgad } 266111388Sgad 267111772Sgad if (ent->r_reason != NULL) { 268111772Sgad free(ent->r_reason); 269111772Sgad ent->r_reason = NULL; 270111772Sgad } 271111772Sgad 272120361Sgad if (ent->trim_at != NULL) { 273120361Sgad ptime_free(ent->trim_at); 274120361Sgad ent->trim_at = NULL; 275120361Sgad } 276120361Sgad 277111388Sgad free(ent); 278111388Sgad} 279111388Sgad 280111388Sgadstatic void 281112020Sgadfree_clist(struct conf_entry **firstent) 282112020Sgad{ 283112020Sgad struct conf_entry *ent, *nextent; 284112020Sgad 285112020Sgad if (firstent == NULL) 286112020Sgad return; /* There is nothing to do. */ 287112020Sgad 288112020Sgad ent = *firstent; 289112020Sgad firstent = NULL; 290112020Sgad 291112020Sgad while (ent) { 292112020Sgad nextent = ent->next; 293112020Sgad free_entry(ent); 294112020Sgad ent = nextent; 295112020Sgad } 296112020Sgad} 297112020Sgad 298112020Sgadstatic void 29959004Shmdo_entry(struct conf_entry * ent) 30013244Sgraichen{ 301111772Sgad#define REASON_MAX 80 30259003Shm int size, modtime; 303120361Sgad double diffsecs; 304111772Sgad char temp_reason[REASON_MAX]; 30559003Shm 30659003Shm if (verbose) { 30759003Shm if (ent->flags & CE_COMPACT) 30859003Shm printf("%s <%dZ>: ", ent->log, ent->numlogs); 30980638Sobrien else if (ent->flags & CE_BZCOMPACT) 31080638Sobrien printf("%s <%dJ>: ", ent->log, ent->numlogs); 31159003Shm else 31259003Shm printf("%s <%d>: ", ent->log, ent->numlogs); 31359003Shm } 31459003Shm size = sizefile(ent->log); 31559003Shm modtime = age_old_log(ent->log); 316111772Sgad ent->rotate = 0; 317114137Sgad ent->firstcreate = 0; 31859003Shm if (size < 0) { 319114137Sgad /* 320114137Sgad * If either the C flag or the -C option was specified, 321114137Sgad * and if we won't be creating the file, then have the 322114137Sgad * verbose message include a hint as to why the file 323114137Sgad * will not be created. 324114137Sgad */ 325114137Sgad temp_reason[0] = '\0'; 326114137Sgad if (createlogs > 1) 327114137Sgad ent->firstcreate = 1; 328114137Sgad else if ((ent->flags & CE_CREATE) && createlogs) 329114137Sgad ent->firstcreate = 1; 330114137Sgad else if (ent->flags & CE_CREATE) 331114137Sgad strncpy(temp_reason, " (no -C option)", REASON_MAX); 332114137Sgad else if (createlogs) 333114137Sgad strncpy(temp_reason, " (no C flag)", REASON_MAX); 334114137Sgad 335114137Sgad if (ent->firstcreate) { 336114137Sgad if (verbose) 337114137Sgad printf("does not exist -> will create.\n"); 338114137Sgad createlog(ent); 339114137Sgad } else if (verbose) { 340114137Sgad printf("does not exist, skipped%s.\n", temp_reason); 341114137Sgad } 34259003Shm } else { 343111772Sgad if (ent->flags & CE_TRIMAT && !force && !rotatereq) { 344120361Sgad diffsecs = ptimeget_diff(timenow, ent->trim_at); 345120361Sgad if (diffsecs < 0.0) { 346120361Sgad /* trim_at is some time in the future. */ 347120361Sgad if (verbose) { 348120361Sgad ptime_adjust4dst(ent->trim_at, 349120361Sgad timenow); 35043071Swollman printf("--> will trim at %s", 351120361Sgad ptimeget_ctime(ent->trim_at)); 352120361Sgad } 35343071Swollman return; 354120361Sgad } else if (diffsecs >= 3600.0) { 355120361Sgad /* 356120361Sgad * trim_at is more than an hour in the past, 357120361Sgad * so find the next valid trim_at time, and 358120361Sgad * tell the user what that will be. 359120361Sgad */ 360120361Sgad if (verbose && dbg_at_times) 361120361Sgad printf("\n\t--> prev trim at %s\t", 362120361Sgad ptimeget_ctime(ent->trim_at)); 363120361Sgad if (verbose) { 364120361Sgad ptimeset_nxtime(ent->trim_at); 365120361Sgad printf("--> will trim at %s", 366120361Sgad ptimeget_ctime(ent->trim_at)); 367120361Sgad } 368120361Sgad return; 369120361Sgad } else if (verbose && noaction && dbg_at_times) { 370120361Sgad /* 371120361Sgad * If we are just debugging at-times, then 372120361Sgad * a detailed message is helpful. Also 373120361Sgad * skip "doing" any commands, since they 374120361Sgad * would all be turned off by no-action. 375120361Sgad */ 376120361Sgad printf("\n\t--> timematch at %s", 377120361Sgad ptimeget_ctime(ent->trim_at)); 378120361Sgad return; 37943071Swollman } else if (verbose && ent->hours <= 0) { 38043071Swollman printf("--> time is up\n"); 38143071Swollman } 38243071Swollman } 38359003Shm if (verbose && (ent->size > 0)) 38459003Shm printf("size (Kb): %d [%d] ", size, ent->size); 38559003Shm if (verbose && (ent->hours > 0)) 38659003Shm printf(" age (hr): %d [%d] ", modtime, ent->hours); 387111772Sgad 388111772Sgad /* 389111772Sgad * Figure out if this logfile needs to be rotated. 390111772Sgad */ 391111772Sgad temp_reason[0] = '\0'; 392111772Sgad if (rotatereq) { 393111772Sgad ent->rotate = 1; 394111772Sgad snprintf(temp_reason, REASON_MAX, " due to -R from %s", 395111772Sgad requestor); 396111772Sgad } else if (force) { 397111772Sgad ent->rotate = 1; 398111772Sgad snprintf(temp_reason, REASON_MAX, " due to -F request"); 399111772Sgad } else if ((ent->size > 0) && (size >= ent->size)) { 400111772Sgad ent->rotate = 1; 401111772Sgad snprintf(temp_reason, REASON_MAX, " due to size>%dK", 402111772Sgad ent->size); 403111772Sgad } else if (ent->hours <= 0 && (ent->flags & CE_TRIMAT)) { 404111772Sgad ent->rotate = 1; 405111772Sgad } else if ((ent->hours > 0) && ((modtime >= ent->hours) || 406111772Sgad (modtime < 0))) { 407111772Sgad ent->rotate = 1; 408111772Sgad } 409111772Sgad 410111772Sgad /* 411111772Sgad * If the file needs to be rotated, then rotate it. 412111772Sgad */ 413111772Sgad if (ent->rotate) { 414111772Sgad if (temp_reason[0] != '\0') 415111772Sgad ent->r_reason = strdup(temp_reason); 41659003Shm if (verbose) 41759003Shm printf("--> trimming log....\n"); 41859003Shm if (noaction && !verbose) { 41959003Shm if (ent->flags & CE_COMPACT) 42059003Shm printf("%s <%dZ>: trimming\n", 42159003Shm ent->log, ent->numlogs); 42280638Sobrien else if (ent->flags & CE_BZCOMPACT) 42380638Sobrien printf("%s <%dJ>: trimming\n", 42480638Sobrien ent->log, ent->numlogs); 42559003Shm else 42659003Shm printf("%s <%d>: trimming\n", 42759003Shm ent->log, ent->numlogs); 42859003Shm } 429119927Sgad dotrim(ent); 43059003Shm } else { 43159003Shm if (verbose) 43259003Shm printf("--> skipping\n"); 43359003Shm } 43459003Shm } 435111772Sgad#undef REASON_MAX 43613244Sgraichen} 43713244Sgraichen 438112003Sgad/* Send a signal to the pid specified by pidfile */ 439112003Sgadstatic int 440112003Sgadsend_signal(const struct conf_entry *ent) 441112003Sgad{ 442112003Sgad pid_t target_pid; 443112003Sgad int did_notify; 444112003Sgad FILE *f; 445112003Sgad long minok, maxok, rval; 446112003Sgad const char *target_name; 447112003Sgad char *endp, *linep, line[BUFSIZ]; 448112003Sgad 449112003Sgad did_notify = 0; 450112003Sgad f = fopen(ent->pid_file, "r"); 451112003Sgad if (f == NULL) { 452112003Sgad warn("can't open pid file: %s", ent->pid_file); 453112003Sgad return (did_notify); 454112003Sgad /* NOTREACHED */ 455112003Sgad } 456112003Sgad 457112003Sgad if (fgets(line, BUFSIZ, f) == NULL) { 458112003Sgad /* 459112003Sgad * XXX - If the pid file is empty, is that really a 460112003Sgad * problem? Wouldn't that mean that the process 461112003Sgad * has shut down? In that case there would be no 462112003Sgad * problem with compressing the rotated log file. 463112003Sgad */ 464112003Sgad if (feof(f)) 465112003Sgad warnx("pid file is empty: %s", ent->pid_file); 466112003Sgad else 467112003Sgad warn("can't read from pid file: %s", ent->pid_file); 468112003Sgad (void) fclose(f); 469112003Sgad return (did_notify); 470112003Sgad /* NOTREACHED */ 471112003Sgad } 472112003Sgad (void) fclose(f); 473112003Sgad 474112003Sgad target_name = "daemon"; 475112003Sgad minok = MIN_PID; 476112003Sgad maxok = MAX_PID; 477112003Sgad if (ent->flags & CE_SIGNALGROUP) { 478112003Sgad /* 479112003Sgad * If we are expected to signal a process-group when 480112003Sgad * rotating this logfile, then the value read in should 481112003Sgad * be the negative of a valid process ID. 482112003Sgad */ 483112003Sgad target_name = "process-group"; 484112003Sgad minok = -MAX_PID; 485112003Sgad maxok = -MIN_PID; 486112003Sgad } 487112003Sgad 488112003Sgad errno = 0; 489112003Sgad linep = line; 490112003Sgad while (*linep == ' ') 491112003Sgad linep++; 492112003Sgad rval = strtol(linep, &endp, 10); 493112003Sgad if (*endp != '\0' && !isspacech(*endp)) { 494112003Sgad warnx("pid file does not start with a valid number: %s", 495112003Sgad ent->pid_file); 496112003Sgad rval = 0; 497112003Sgad } else if (rval < minok || rval > maxok) { 498112003Sgad warnx("bad value '%ld' for process number in %s", 499112003Sgad rval, ent->pid_file); 500112003Sgad if (verbose) 501112003Sgad warnx("\t(expecting value between %ld and %ld)", 502112003Sgad minok, maxok); 503112003Sgad rval = 0; 504112003Sgad } 505112003Sgad if (rval == 0) { 506112003Sgad return (did_notify); 507112003Sgad /* NOTREACHED */ 508112003Sgad } 509112003Sgad 510112003Sgad target_pid = rval; 511112003Sgad 512112003Sgad if (noaction) { 513112003Sgad did_notify = 1; 514112003Sgad printf("\tkill -%d %d\n", ent->sig, (int) target_pid); 515112003Sgad } else if (kill(target_pid, ent->sig)) { 516112003Sgad /* 517112003Sgad * XXX - Iff the error was "no such process", should that 518112003Sgad * really be an error for us? Perhaps the process 519112003Sgad * is already gone, in which case there would be no 520112003Sgad * problem with compressing the rotated log file. 521112003Sgad */ 522112003Sgad warn("can't notify %s, pid %d", target_name, 523112003Sgad (int) target_pid); 524112003Sgad } else { 525112003Sgad did_notify = 1; 526112003Sgad if (verbose) 527112003Sgad printf("%s pid %d notified\n", target_name, 528112003Sgad (int) target_pid); 529112003Sgad } 530112003Sgad 531112003Sgad return (did_notify); 532112003Sgad} 533112003Sgad 53459004Shmstatic void 535111781Sgadparse_args(int argc, char **argv) 53613244Sgraichen{ 537111781Sgad int ch; 53859003Shm char *p; 53913244Sgraichen 540120361Sgad timenow = ptime_init(NULL); 541120361Sgad ptimeset_time(timenow, time(NULL)); 542120361Sgad (void)strncpy(daytime, ptimeget_ctime(timenow) + 4, 15); 54359003Shm daytime[15] = '\0'; 54413244Sgraichen 54559003Shm /* Let's get our hostname */ 546111781Sgad (void)gethostname(hostname, sizeof(hostname)); 54713244Sgraichen 54813244Sgraichen /* Truncate domain */ 549111781Sgad if ((p = strchr(hostname, '.')) != NULL) 55013244Sgraichen *p = '\0'; 551111768Sgad 552111768Sgad /* Parse command line options. */ 553119904Sgad while ((ch = getopt(argc, argv, "a:f:nrsvCD:FR:")) != -1) 554111781Sgad switch (ch) { 55559004Shm case 'a': 55659004Shm archtodir++; 55759004Shm archdirname = optarg; 55859004Shm break; 559111768Sgad case 'f': 560111768Sgad conf = optarg; 561111768Sgad break; 562111768Sgad case 'n': 563111768Sgad noaction++; 564111768Sgad break; 56559003Shm case 'r': 56659003Shm needroot = 0; 56759003Shm break; 568111768Sgad case 's': 569111768Sgad nosignal = 1; 570111768Sgad break; 57159003Shm case 'v': 57259003Shm verbose++; 57359003Shm break; 574114137Sgad case 'C': 575114137Sgad /* Useful for things like rc.diskless... */ 576114137Sgad createlogs++; 577114137Sgad break; 578119904Sgad case 'D': 579119904Sgad /* 580119904Sgad * Set some debugging option. The specific option 581119904Sgad * depends on the value of optarg. These options 582119904Sgad * may come and go without notice or documentation. 583119904Sgad */ 584119904Sgad if (parse_doption(optarg)) 585119904Sgad break; 586119904Sgad usage(); 587119904Sgad /* NOTREACHED */ 58834584Spst case 'F': 58934584Spst force++; 59034584Spst break; 591111772Sgad case 'R': 592111772Sgad rotatereq++; 593111772Sgad requestor = strdup(optarg); 594111772Sgad break; 595111781Sgad case 'm': /* Used by OpenBSD for "monitor mode" */ 59659003Shm default: 59759003Shm usage(); 598111768Sgad /* NOTREACHED */ 59959003Shm } 600111772Sgad 601111772Sgad if (rotatereq) { 602111772Sgad if (optind == argc) { 603111772Sgad warnx("At least one filename must be given when -R is specified."); 604111772Sgad usage(); 605111772Sgad /* NOTREACHED */ 606111772Sgad } 607111772Sgad /* Make sure "requestor" value is safe for a syslog message. */ 608111772Sgad for (p = requestor; *p != '\0'; p++) { 609111772Sgad if (!isprintch(*p) && (*p != '\t')) 610111772Sgad *p = '.'; 611111772Sgad } 612111772Sgad } 613119904Sgad 614119904Sgad if (dbg_timenow) { 615119904Sgad /* 616119904Sgad * Note that the 'daytime' variable is not changed. 617119904Sgad * That is only used in messages that track when a 618119904Sgad * logfile is rotated, and if a file *is* rotated, 619119904Sgad * then it will still rotated at the "real now" time. 620119904Sgad */ 621120361Sgad ptime_free(timenow); 622119904Sgad timenow = dbg_timenow; 623119904Sgad fprintf(stderr, "Debug: Running as if TimeNow is %s", 624120361Sgad ptimeget_ctime(dbg_timenow)); 625119904Sgad } 626119904Sgad 62743071Swollman} 62813244Sgraichen 629120361Sgad/* 630120361Sgad * These debugging options are mainly meant for developer use, such 631120361Sgad * as writing regression-tests. They would not be needed by users 632120361Sgad * during normal operation of newsyslog... 633120361Sgad */ 634119904Sgadstatic int 635119904Sgadparse_doption(const char *doption) 636119904Sgad{ 637119904Sgad const char TN[] = "TN="; 638120361Sgad int res; 639119904Sgad 640119904Sgad if (strncmp(doption, TN, sizeof(TN) - 1) == 0) { 641119904Sgad /* 642120361Sgad * The "TimeNow" debugging option. This might be off 643120361Sgad * by an hour when crossing a timezone change. 644119904Sgad */ 645120361Sgad dbg_timenow = ptime_init(NULL); 646120361Sgad res = ptime_relparse(dbg_timenow, PTM_PARSE_ISO8601, 647120361Sgad time(NULL), doption + sizeof(TN) - 1); 648120361Sgad if (res == -2) { 649120361Sgad warnx("Non-existent time specified on -D %s", doption); 650120361Sgad return (0); /* failure */ 651120361Sgad } else if (res < 0) { 652119904Sgad warnx("Malformed time given on -D %s", doption); 653119904Sgad return (0); /* failure */ 654119904Sgad } 655119904Sgad return (1); /* successfully parsed */ 656119904Sgad 657119904Sgad } 658119904Sgad 659120361Sgad if (strcmp(doption, "ats") == 0) { 660120361Sgad dbg_at_times++; 661120361Sgad return (1); /* successfully parsed */ 662120361Sgad } 663120361Sgad 664119904Sgad warnx("Unknown -D (debug) option: %s", doption); 665119904Sgad return (0); /* failure */ 666119904Sgad} 667119904Sgad 66859004Shmstatic void 66959004Shmusage(void) 67013244Sgraichen{ 67180646Sobrien 67280646Sobrien fprintf(stderr, 673114137Sgad "usage: newsyslog [-CFnrsv] [-a directory] [-f config-file]\n" 674111772Sgad " [ [-R requestor] filename ... ]\n"); 67559003Shm exit(1); 67613244Sgraichen} 67713244Sgraichen 67859004Shm/* 679111773Sgad * Parse a configuration file and return a linked list of all the logs 680111773Sgad * which should be processed. 68113244Sgraichen */ 68259003Shmstatic struct conf_entry * 683111773Sgadget_worklist(char **files) 68413244Sgraichen{ 68559003Shm FILE *f; 686111773Sgad const char *fname; 687111773Sgad char **given; 688111773Sgad struct conf_entry *defconf, *dupent, *ent, *firstnew; 689112020Sgad struct conf_entry *globlist, *lastnew, *worklist; 690112020Sgad int gmatch, fnres; 691111773Sgad 692112020Sgad defconf = globlist = worklist = NULL; 693111773Sgad 694111773Sgad fname = conf; 695111773Sgad if (fname == NULL) 696111773Sgad fname = _PATH_CONF; 697111773Sgad 698111773Sgad if (strcmp(fname, "-") != 0) 699111773Sgad f = fopen(fname, "r"); 700111773Sgad else { 701111773Sgad f = stdin; 702111773Sgad fname = "<stdin>"; 703111773Sgad } 704111773Sgad if (!f) 705111773Sgad err(1, "%s", conf); 706111773Sgad 707112020Sgad parse_file(f, fname, &worklist, &globlist, &defconf); 708111773Sgad (void) fclose(f); 709111773Sgad 710111773Sgad /* 711111773Sgad * All config-file information has been read in and turned into 712112020Sgad * a worklist and a globlist. If there were no specific files 713112020Sgad * given on the run command, then the only thing left to do is to 714112020Sgad * call a routine which finds all files matched by the globlist 715112020Sgad * and adds them to the worklist. Then return the worklist. 716111773Sgad */ 717111773Sgad if (*files == NULL) { 718112020Sgad expand_globs(&worklist, &globlist); 719112020Sgad free_clist(&globlist); 720111773Sgad if (defconf != NULL) 721111773Sgad free_entry(defconf); 722111773Sgad return (worklist); 723111773Sgad /* NOTREACHED */ 724111773Sgad } 725111773Sgad 726111773Sgad /* 727111773Sgad * If newsyslog was given a specific list of files to process, 728111773Sgad * it may be that some of those files were not listed in any 729111773Sgad * config file. Those unlisted files should get the default 730111773Sgad * rotation action. First, create the default-rotation action 731111773Sgad * if none was found in a system config file. 732111773Sgad */ 733111773Sgad if (defconf == NULL) { 734111773Sgad defconf = init_entry(DEFAULT_MARKER, NULL); 735111773Sgad defconf->numlogs = 3; 736111773Sgad defconf->size = 50; 737111773Sgad defconf->permissions = S_IRUSR|S_IWUSR; 738111773Sgad } 739111773Sgad 740111773Sgad /* 741111773Sgad * If newsyslog was run with a list of specific filenames, 742111773Sgad * then create a new worklist which has only those files in 743111773Sgad * it, picking up the rotation-rules for those files from 744111773Sgad * the original worklist. 745111773Sgad * 746111773Sgad * XXX - Note that this will copy multiple rules for a single 747111773Sgad * logfile, if multiple entries are an exact match for 748111773Sgad * that file. That matches the historic behavior, but do 749111773Sgad * we want to continue to allow it? If so, it should 750111773Sgad * probably be handled more intelligently. 751111773Sgad */ 752112020Sgad firstnew = lastnew = NULL; 753111773Sgad for (given = files; *given; ++given) { 754111773Sgad /* 755111773Sgad * First try to find exact-matches for this given file. 756111773Sgad */ 757112020Sgad gmatch = 0; 758111773Sgad for (ent = worklist; ent; ent = ent->next) { 759111773Sgad if (strcmp(ent->log, *given) == 0) { 760111773Sgad gmatch++; 761111773Sgad dupent = init_entry(*given, ent); 762111773Sgad if (!firstnew) 763111773Sgad firstnew = dupent; 764111773Sgad else 765112020Sgad lastnew->next = dupent; 766112020Sgad lastnew = dupent; 767111773Sgad } 768111773Sgad } 769111773Sgad if (gmatch) { 770111773Sgad if (verbose > 2) 771111773Sgad printf("\t+ Matched entry %s\n", *given); 772111773Sgad continue; 773111773Sgad } 774111773Sgad 775111773Sgad /* 776111773Sgad * There was no exact-match for this given file, so look 777111773Sgad * for a "glob" entry which does match. 778111773Sgad */ 779112020Sgad gmatch = 0; 780112020Sgad if (verbose > 2 && globlist != NULL) 781112020Sgad printf("\t+ Checking globs for %s\n", *given); 782112020Sgad for (ent = globlist; ent; ent = ent->next) { 783112020Sgad fnres = fnmatch(ent->log, *given, FNM_PATHNAME); 784112020Sgad if (verbose > 2) 785112020Sgad printf("\t+ = %d for pattern %s\n", fnres, 786112020Sgad ent->log); 787112020Sgad if (fnres == 0) { 788111773Sgad gmatch++; 789111773Sgad dupent = init_entry(*given, ent); 790111773Sgad if (!firstnew) 791111773Sgad firstnew = dupent; 792111773Sgad else 793112020Sgad lastnew->next = dupent; 794112020Sgad lastnew = dupent; 795112020Sgad /* This new entry is not a glob! */ 796111773Sgad dupent->flags &= ~CE_GLOB; 797111773Sgad /* Only allow a match to one glob-entry */ 798111773Sgad break; 799111773Sgad } 800111773Sgad } 801111773Sgad if (gmatch) { 802111773Sgad if (verbose > 2) 803111773Sgad printf("\t+ Matched %s via %s\n", *given, 804111773Sgad ent->log); 805111773Sgad continue; 806111773Sgad } 807111773Sgad 808111773Sgad /* 809111773Sgad * This given file was not found in any config file, so 810111773Sgad * add a worklist item based on the default entry. 811111773Sgad */ 812111773Sgad if (verbose > 2) 813111773Sgad printf("\t+ No entry matched %s (will use %s)\n", 814111773Sgad *given, DEFAULT_MARKER); 815111773Sgad dupent = init_entry(*given, defconf); 816111773Sgad if (!firstnew) 817111773Sgad firstnew = dupent; 818111773Sgad else 819112020Sgad lastnew->next = dupent; 820111773Sgad /* Mark that it was *not* found in a config file */ 821111773Sgad dupent->def_cfg = 1; 822112020Sgad lastnew = dupent; 823111773Sgad } 824111773Sgad 825111773Sgad /* 826112020Sgad * Free all the entries in the original work list, the list of 827112020Sgad * glob entries, and the default entry. 828111773Sgad */ 829112020Sgad free_clist(&worklist); 830112020Sgad free_clist(&globlist); 831112020Sgad free_entry(defconf); 832111773Sgad 833112020Sgad /* And finally, return a worklist which matches the given files. */ 834112013Sgad return (firstnew); 835111773Sgad} 836111773Sgad 837111773Sgad/* 838112020Sgad * Expand the list of entries with filename patterns, and add all files 839112020Sgad * which match those glob-entries onto the worklist. 840112020Sgad */ 841112020Sgadstatic void 842112020Sgadexpand_globs(struct conf_entry **work_p, struct conf_entry **glob_p) 843112020Sgad{ 844112020Sgad int gmatch, gres, i; 845112020Sgad char *mfname; 846112020Sgad struct conf_entry *dupent, *ent, *firstmatch, *globent; 847112020Sgad struct conf_entry *lastmatch; 848112020Sgad glob_t pglob; 849112020Sgad struct stat st_fm; 850112020Sgad 851112020Sgad if ((glob_p == NULL) || (*glob_p == NULL)) 852112020Sgad return; /* There is nothing to do. */ 853112020Sgad 854112020Sgad /* 855112020Sgad * The worklist contains all fully-specified (non-GLOB) names. 856112020Sgad * 857112020Sgad * Now expand the list of filename-pattern (GLOB) entries into 858112020Sgad * a second list, which (by definition) will only match files 859112020Sgad * that already exist. Do not add a glob-related entry for any 860112020Sgad * file which already exists in the fully-specified list. 861112020Sgad */ 862112020Sgad firstmatch = lastmatch = NULL; 863112020Sgad for (globent = *glob_p; globent; globent = globent->next) { 864112020Sgad 865112020Sgad gres = glob(globent->log, GLOB_NOCHECK, NULL, &pglob); 866112020Sgad if (gres != 0) { 867112020Sgad warn("cannot expand pattern (%d): %s", gres, 868112020Sgad globent->log); 869112020Sgad continue; 870112020Sgad } 871112020Sgad 872112020Sgad if (verbose > 2) 873112020Sgad printf("\t+ Expanding pattern %s\n", globent->log); 874112020Sgad for (i = 0; i < pglob.gl_matchc; i++) { 875112020Sgad mfname = pglob.gl_pathv[i]; 876112020Sgad 877112020Sgad /* See if this file already has a specific entry. */ 878112020Sgad gmatch = 0; 879112020Sgad for (ent = *work_p; ent; ent = ent->next) { 880112020Sgad if (strcmp(mfname, ent->log) == 0) { 881112020Sgad gmatch++; 882112020Sgad break; 883112020Sgad } 884112020Sgad } 885112020Sgad if (gmatch) 886112020Sgad continue; 887112020Sgad 888112020Sgad /* Make sure the named matched is a file. */ 889112020Sgad gres = lstat(mfname, &st_fm); 890112020Sgad if (gres != 0) { 891112020Sgad /* Error on a file that glob() matched?!? */ 892112020Sgad warn("Skipping %s - lstat() error", mfname); 893112020Sgad continue; 894112020Sgad } 895112020Sgad if (!S_ISREG(st_fm.st_mode)) { 896112020Sgad /* We only rotate files! */ 897112020Sgad if (verbose > 2) 898112020Sgad printf("\t+ . skipping %s (!file)\n", 899112020Sgad mfname); 900112020Sgad continue; 901112020Sgad } 902112020Sgad 903112020Sgad if (verbose > 2) 904112020Sgad printf("\t+ . add file %s\n", mfname); 905112020Sgad dupent = init_entry(mfname, globent); 906112020Sgad if (!firstmatch) 907112020Sgad firstmatch = dupent; 908112020Sgad else 909112020Sgad lastmatch->next = dupent; 910112020Sgad lastmatch = dupent; 911112020Sgad /* This new entry is not a glob! */ 912112020Sgad dupent->flags &= ~CE_GLOB; 913112020Sgad } 914112020Sgad globfree(&pglob); 915112020Sgad if (verbose > 2) 916112020Sgad printf("\t+ Done with pattern %s\n", globent->log); 917112020Sgad } 918112020Sgad 919112020Sgad /* Add the list of matched files to the end of the worklist. */ 920112020Sgad if (!*work_p) 921112020Sgad *work_p = firstmatch; 922112020Sgad else { 923112020Sgad ent = *work_p; 924112020Sgad while (ent->next) 925112020Sgad ent = ent->next; 926112020Sgad ent->next = firstmatch; 927112020Sgad } 928112020Sgad 929112020Sgad} 930112020Sgad 931112020Sgad/* 932111773Sgad * Parse a configuration file and update a linked list of all the logs to 933111773Sgad * process. 934111773Sgad */ 935111773Sgadstatic void 936111773Sgadparse_file(FILE *cf, const char *cfname, struct conf_entry **work_p, 937112020Sgad struct conf_entry **glob_p, struct conf_entry **defconf_p) 938111773Sgad{ 93959003Shm char line[BUFSIZ], *parse, *q; 940107737Ssobomax char *cp, *errline, *group; 941112020Sgad struct conf_entry *lastglob, *lastwork, *working; 942111781Sgad struct passwd *pwd; 94359003Shm struct group *grp; 944120361Sgad int eol, ptm_opts, res, special; 94513244Sgraichen 946111773Sgad /* 947111773Sgad * XXX - for now, assume that only one config file will be read, 948111773Sgad * ie, this routine is only called one time. 949111773Sgad */ 950112020Sgad lastglob = lastwork = NULL; 95180646Sobrien 952111773Sgad while (fgets(line, BUFSIZ, cf)) { 953107737Ssobomax if ((line[0] == '\n') || (line[0] == '#') || 954107737Ssobomax (strlen(line) == 0)) 95559003Shm continue; 95659003Shm errline = strdup(line); 957107737Ssobomax for (cp = line + 1; *cp != '\0'; cp++) { 958107737Ssobomax if (*cp != '#') 959107737Ssobomax continue; 960107737Ssobomax if (*(cp - 1) == '\\') { 961107737Ssobomax strcpy(cp - 1, cp); 962107737Ssobomax cp--; 963107737Ssobomax continue; 964107737Ssobomax } 965107737Ssobomax *cp = '\0'; 966107737Ssobomax break; 967107737Ssobomax } 96860373Sdes 96960373Sdes q = parse = missing_field(sob(line), errline); 97060373Sdes parse = son(line); 97160373Sdes if (!*parse) 97280646Sobrien errx(1, "malformed line (missing fields):\n%s", 97380646Sobrien errline); 97460373Sdes *parse = '\0'; 97560373Sdes 976112020Sgad special = 0; 977111388Sgad working = init_entry(q, NULL); 978111388Sgad if (strcasecmp(DEFAULT_MARKER, q) == 0) { 979112020Sgad special = 1; 980111773Sgad if (defconf_p == NULL) { 981111773Sgad warnx("Ignoring entry for %s in %s!", q, 982111773Sgad cfname); 983111773Sgad free_entry(working); 984111773Sgad continue; 985111773Sgad } else if (*defconf_p != NULL) { 986111388Sgad warnx("Ignoring duplicate entry for %s!", q); 987111388Sgad free_entry(working); 988111388Sgad continue; 989111388Sgad } 990111773Sgad *defconf_p = working; 99159003Shm } 99213244Sgraichen 99359003Shm q = parse = missing_field(sob(++parse), errline); 99459003Shm parse = son(parse); 99525518Sbrian if (!*parse) 99680646Sobrien errx(1, "malformed line (missing fields):\n%s", 99780646Sobrien errline); 99859003Shm *parse = '\0'; 99959003Shm if ((group = strchr(q, ':')) != NULL || 100059003Shm (group = strrchr(q, '.')) != NULL) { 100159003Shm *group++ = '\0'; 100259003Shm if (*q) { 1003119102Sgad if (!(isnumberstr(q))) { 1004111781Sgad if ((pwd = getpwnam(q)) == NULL) 100559003Shm errx(1, 100680646Sobrien "error in config file; unknown user:\n%s", 100759003Shm errline); 1008111781Sgad working->uid = pwd->pw_uid; 100959003Shm } else 101059003Shm working->uid = atoi(q); 101159003Shm } else 1012111779Sgad working->uid = (uid_t)-1; 101313244Sgraichen 101459003Shm q = group; 101559003Shm if (*q) { 1016119102Sgad if (!(isnumberstr(q))) { 101759003Shm if ((grp = getgrnam(q)) == NULL) 101859003Shm errx(1, 101980646Sobrien "error in config file; unknown group:\n%s", 102059003Shm errline); 102159003Shm working->gid = grp->gr_gid; 102259003Shm } else 102359003Shm working->gid = atoi(q); 102459003Shm } else 1025111779Sgad working->gid = (gid_t)-1; 102613244Sgraichen 102759003Shm q = parse = missing_field(sob(++parse), errline); 102859003Shm parse = son(parse); 102959003Shm if (!*parse) 103080646Sobrien errx(1, "malformed line (missing fields):\n%s", 103180646Sobrien errline); 103259003Shm *parse = '\0'; 1033111779Sgad } else { 1034111779Sgad working->uid = (uid_t)-1; 1035111779Sgad working->gid = (gid_t)-1; 1036111779Sgad } 103759003Shm 103859003Shm if (!sscanf(q, "%o", &working->permissions)) 103959003Shm errx(1, "error in config file; bad permissions:\n%s", 104059003Shm errline); 104159003Shm 104259003Shm q = parse = missing_field(sob(++parse), errline); 104359003Shm parse = son(parse); 104425518Sbrian if (!*parse) 104580646Sobrien errx(1, "malformed line (missing fields):\n%s", 104680646Sobrien errline); 104759003Shm *parse = '\0'; 1048111400Sgad if (!sscanf(q, "%d", &working->numlogs) || working->numlogs < 0) 1049111400Sgad errx(1, "error in config file; bad value for count of logs to save:\n%s", 105059003Shm errline); 105113244Sgraichen 105259003Shm q = parse = missing_field(sob(++parse), errline); 105359003Shm parse = son(parse); 105425518Sbrian if (!*parse) 105580646Sobrien errx(1, "malformed line (missing fields):\n%s", 105680646Sobrien errline); 105759003Shm *parse = '\0'; 1058114762Sgad if (isdigitch(*q)) 105959003Shm working->size = atoi(q); 1060114762Sgad else if (strcmp(q,"*") == 0) 106159003Shm working->size = -1; 1062114762Sgad else { 1063114762Sgad warnx("Invalid value of '%s' for 'size' in line:\n%s", 1064114762Sgad q, errline); 1065114762Sgad working->size = -1; 1066114762Sgad } 106759003Shm 106859003Shm working->flags = 0; 106959003Shm q = parse = missing_field(sob(++parse), errline); 107059003Shm parse = son(parse); 107125518Sbrian eol = !*parse; 107259003Shm *parse = '\0'; 107343071Swollman { 107459003Shm char *ep; 107559003Shm u_long ul; 107613244Sgraichen 107743071Swollman ul = strtoul(q, &ep, 10); 107843071Swollman if (ep == q) 107943071Swollman working->hours = 0; 108043071Swollman else if (*ep == '*') 108143071Swollman working->hours = -1; 108243071Swollman else if (ul > INT_MAX) 108343071Swollman errx(1, "interval is too large:\n%s", errline); 108443071Swollman else 108543071Swollman working->hours = ul; 108643071Swollman 1087120361Sgad if (*ep == '\0' || strcmp(ep, "*") == 0) 1088120361Sgad goto no_trimat; 1089120361Sgad if (*ep != '@' && *ep != '$') 109043071Swollman errx(1, "malformed interval/at:\n%s", errline); 1091120361Sgad 1092120361Sgad working->flags |= CE_TRIMAT; 1093120361Sgad working->trim_at = ptime_init(NULL); 1094120361Sgad ptm_opts = PTM_PARSE_ISO8601; 1095120361Sgad if (*ep == '$') 1096120361Sgad ptm_opts = PTM_PARSE_DWM; 1097120361Sgad ptm_opts |= PTM_PARSE_MATCHDOM; 1098120361Sgad res = ptime_relparse(working->trim_at, ptm_opts, 1099120361Sgad ptimeget_secs(timenow), ep + 1); 1100120361Sgad if (res == -2) 1101120361Sgad errx(1, "nonexistent time for 'at' value:\n%s", 1102120361Sgad errline); 1103120361Sgad else if (res < 0) 1104120361Sgad errx(1, "malformed 'at' value:\n%s", errline); 110543071Swollman } 1106120361Sgadno_trimat: 110743071Swollman 110825518Sbrian if (eol) 110959003Shm q = NULL; 111025518Sbrian else { 111159003Shm q = parse = sob(++parse); /* Optional field */ 111259003Shm parse = son(parse); 111359003Shm if (!*parse) 111459003Shm eol = 1; 111559003Shm *parse = '\0'; 111625518Sbrian } 111725443Sache 1118111768Sgad for (; q && *q && !isspacech(*q); q++) { 1119111768Sgad switch (tolowerch(*q)) { 1120111768Sgad case 'b': 112159003Shm working->flags |= CE_BINARY; 1122111768Sgad break; 1123114137Sgad case 'c': 1124111768Sgad /* 1125114137Sgad * XXX - Ick! Ugly! Remove ASAP! 1126114137Sgad * We want `c' and `C' for "create". But we 1127114137Sgad * will temporarily treat `c' as `g', because 1128114137Sgad * FreeBSD releases <= 4.8 have a typo of 1129114137Sgad * checking ('G' || 'c') for CE_GLOB. 1130111768Sgad */ 1131114137Sgad if (*q == 'c') { 1132114137Sgad warnx("Assuming 'g' for 'c' in flags for line:\n%s", 1133114137Sgad errline); 1134114137Sgad warnx("The 'c' flag will eventually mean 'CREATE'"); 1135114137Sgad working->flags |= CE_GLOB; 1136114137Sgad break; 1137114137Sgad } 1138114137Sgad working->flags |= CE_CREATE; 1139114137Sgad break; 1140111768Sgad case 'g': 1141106905Ssobomax working->flags |= CE_GLOB; 1142111768Sgad break; 1143111768Sgad case 'j': 1144111768Sgad working->flags |= CE_BZCOMPACT; 1145111768Sgad break; 1146111768Sgad case 'n': 1147111768Sgad working->flags |= CE_NOSIGNAL; 1148111768Sgad break; 1149112003Sgad case 'u': 1150112003Sgad working->flags |= CE_SIGNALGROUP; 1151112003Sgad break; 1152111768Sgad case 'w': 1153107916Ssobomax working->flags |= CE_COMPACTWAIT; 1154111768Sgad break; 1155111768Sgad case 'z': 1156111768Sgad working->flags |= CE_COMPACT; 1157111768Sgad break; 1158111768Sgad case '-': 1159111768Sgad break; 1160111781Sgad case 'f': /* Used by OpenBSD for "CE_FOLLOW" */ 1161111781Sgad case 'm': /* Used by OpenBSD for "CE_MONITOR" */ 1162111781Sgad case 'p': /* Used by NetBSD for "CE_PLAIN0" */ 1163111768Sgad default: 116480646Sobrien errx(1, "illegal flag in config file -- %c", 116580646Sobrien *q); 1166111768Sgad } 116759003Shm } 116859003Shm 116925518Sbrian if (eol) 117059003Shm q = NULL; 117125518Sbrian else { 117259003Shm q = parse = sob(++parse); /* Optional field */ 117359003Shm parse = son(parse); 117459003Shm if (!*parse) 117559003Shm eol = 1; 117659003Shm *parse = '\0'; 117725518Sbrian } 117825443Sache 117925443Sache working->pid_file = NULL; 118025443Sache if (q && *q) { 118125443Sache if (*q == '/') 118225443Sache working->pid_file = strdup(q); 118336817Sache else if (isdigit(*q)) 118436817Sache goto got_sig; 118559003Shm else 118680646Sobrien errx(1, 118780646Sobrien "illegal pid file or signal number in config file:\n%s", 118880646Sobrien errline); 118925443Sache } 119036817Sache if (eol) 119159003Shm q = NULL; 119236817Sache else { 119359003Shm q = parse = sob(++parse); /* Optional field */ 119459003Shm *(parse = son(parse)) = '\0'; 119536817Sache } 119636817Sache 119736817Sache working->sig = SIGHUP; 119836817Sache if (q && *q) { 119936817Sache if (isdigit(*q)) { 120059003Shm got_sig: 120136817Sache working->sig = atoi(q); 120236817Sache } else { 120359003Shm err_sig: 120480646Sobrien errx(1, 120580646Sobrien "illegal signal number in config file:\n%s", 120680646Sobrien errline); 120736817Sache } 120836817Sache if (working->sig < 1 || working->sig >= NSIG) 120936817Sache goto err_sig; 121036817Sache } 1211111768Sgad 1212111768Sgad /* 1213111768Sgad * Finish figuring out what pid-file to use (if any) in 1214111768Sgad * later processing if this logfile needs to be rotated. 1215111768Sgad */ 1216111768Sgad if ((working->flags & CE_NOSIGNAL) == CE_NOSIGNAL) { 1217111768Sgad /* 1218111768Sgad * This config-entry specified 'n' for nosignal, 1219111768Sgad * see if it also specified an explicit pid_file. 1220111768Sgad * This would be a pretty pointless combination. 1221111768Sgad */ 1222111768Sgad if (working->pid_file != NULL) { 1223111768Sgad warnx("Ignoring '%s' because flag 'n' was specified in line:\n%s", 1224111768Sgad working->pid_file, errline); 1225111768Sgad free(working->pid_file); 1226111768Sgad working->pid_file = NULL; 1227111768Sgad } 1228111768Sgad } else if (working->pid_file == NULL) { 1229111768Sgad /* 1230111768Sgad * This entry did not specify the 'n' flag, which 1231111768Sgad * means it should signal syslogd unless it had 1232112003Sgad * specified some other pid-file (and obviously the 1233112003Sgad * syslog pid-file will not be for a process-group). 1234112003Sgad * Also, we should only try to notify syslog if we 1235112003Sgad * are root. 1236111768Sgad */ 1237112003Sgad if (working->flags & CE_SIGNALGROUP) { 1238112003Sgad warnx("Ignoring flag 'U' in line:\n%s", 1239112003Sgad errline); 1240112003Sgad working->flags &= ~CE_SIGNALGROUP; 1241112003Sgad } 1242111768Sgad if (needroot) 1243111768Sgad working->pid_file = strdup(_PATH_SYSLOGPID); 1244111768Sgad } 1245111768Sgad 1246112020Sgad /* 1247112020Sgad * Add this entry to the appropriate list of entries, unless 1248112020Sgad * it was some kind of special entry (eg: <default>). 1249112020Sgad */ 1250112020Sgad if (special) { 1251112020Sgad ; /* Do not add to any list */ 1252112020Sgad } else if (working->flags & CE_GLOB) { 1253112020Sgad if (!*glob_p) 1254112020Sgad *glob_p = working; 1255112020Sgad else 1256112020Sgad lastglob->next = working; 1257112020Sgad lastglob = working; 1258112020Sgad } else { 1259112020Sgad if (!*work_p) 1260112020Sgad *work_p = working; 1261112020Sgad else 1262112020Sgad lastwork->next = working; 1263112020Sgad lastwork = working; 1264112020Sgad } 1265112020Sgad 126659003Shm free(errline); 1267111768Sgad errline = NULL; 126859003Shm } 126913244Sgraichen} 127013244Sgraichen 127159003Shmstatic char * 127259004Shmmissing_field(char *p, char *errline) 127313244Sgraichen{ 127480646Sobrien 127559003Shm if (!p || !*p) 127659003Shm errx(1, "missing field in config file:\n%s", errline); 127759003Shm return (p); 127813244Sgraichen} 127913244Sgraichen 128059004Shmstatic void 1281119927Sgaddotrim(const struct conf_entry *ent) 128213244Sgraichen{ 128371299Sjedgar char dirpart[MAXPATHLEN], namepart[MAXPATHLEN]; 128471299Sjedgar char file1[MAXPATHLEN], file2[MAXPATHLEN]; 128571299Sjedgar char zfile1[MAXPATHLEN], zfile2[MAXPATHLEN]; 128680638Sobrien char jfile1[MAXPATHLEN]; 128794352Ssheldonh char tfile[MAXPATHLEN]; 1288119927Sgad int flags, notified, need_notification, fd, numlogs_c; 128959003Shm struct stat st; 129013244Sgraichen 1291119927Sgad flags = ent->flags; 1292119927Sgad 129359004Shm if (archtodir) { 129459004Shm char *p; 129513244Sgraichen 129659004Shm /* build complete name of archive directory into dirpart */ 129759004Shm if (*archdirname == '/') { /* absolute */ 129871299Sjedgar strlcpy(dirpart, archdirname, sizeof(dirpart)); 129959004Shm } else { /* relative */ 130059004Shm /* get directory part of logfile */ 1301119927Sgad strlcpy(dirpart, ent->log, sizeof(dirpart)); 130259004Shm if ((p = rindex(dirpart, '/')) == NULL) 130359004Shm dirpart[0] = '\0'; 130459004Shm else 130559004Shm *(p + 1) = '\0'; 130671299Sjedgar strlcat(dirpart, archdirname, sizeof(dirpart)); 130759004Shm } 130859004Shm 130959004Shm /* check if archive directory exists, if not, create it */ 131059004Shm if (lstat(dirpart, &st)) 1311114137Sgad createdir(ent, dirpart); 131259004Shm 131359004Shm /* get filename part of logfile */ 1314119927Sgad if ((p = rindex(ent->log, '/')) == NULL) 1315119927Sgad strlcpy(namepart, ent->log, sizeof(namepart)); 131659004Shm else 131771299Sjedgar strlcpy(namepart, p + 1, sizeof(namepart)); 131859004Shm 131959004Shm /* name of oldest log */ 132080646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s.%d", dirpart, 1321119927Sgad namepart, ent->numlogs); 132271299Sjedgar (void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1, 132371299Sjedgar COMPRESS_POSTFIX); 132480638Sobrien snprintf(jfile1, sizeof(jfile1), "%s%s", file1, 132580638Sobrien BZCOMPRESS_POSTFIX); 132659004Shm } else { 132759004Shm /* name of oldest log */ 1328119927Sgad (void) snprintf(file1, sizeof(file1), "%s.%d", ent->log, 1329119927Sgad ent->numlogs); 133071299Sjedgar (void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1, 133171299Sjedgar COMPRESS_POSTFIX); 133280638Sobrien snprintf(jfile1, sizeof(jfile1), "%s%s", file1, 133380638Sobrien BZCOMPRESS_POSTFIX); 133459004Shm } 133559004Shm 133659003Shm if (noaction) { 1337111967Sgad printf("\trm -f %s\n", file1); 1338111967Sgad printf("\trm -f %s\n", zfile1); 1339111967Sgad printf("\trm -f %s\n", jfile1); 134059003Shm } else { 134159003Shm (void) unlink(file1); 134259003Shm (void) unlink(zfile1); 134380638Sobrien (void) unlink(jfile1); 134459003Shm } 134513244Sgraichen 134659003Shm /* Move down log files */ 1347119927Sgad numlogs_c = ent->numlogs; /* copy for countdown */ 1348119927Sgad while (numlogs_c--) { 134959004Shm 135071299Sjedgar (void) strlcpy(file2, file1, sizeof(file2)); 135159004Shm 135259004Shm if (archtodir) 135380646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s.%d", 1354119927Sgad dirpart, namepart, numlogs_c); 135559004Shm else 1356119927Sgad (void) snprintf(file1, sizeof(file1), "%s.%d", 1357119927Sgad ent->log, numlogs_c); 135859004Shm 135971299Sjedgar (void) strlcpy(zfile1, file1, sizeof(zfile1)); 136071299Sjedgar (void) strlcpy(zfile2, file2, sizeof(zfile2)); 136159003Shm if (lstat(file1, &st)) { 136280646Sobrien (void) strlcat(zfile1, COMPRESS_POSTFIX, 136380646Sobrien sizeof(zfile1)); 136480646Sobrien (void) strlcat(zfile2, COMPRESS_POSTFIX, 136580646Sobrien sizeof(zfile2)); 136680638Sobrien if (lstat(zfile1, &st)) { 136780638Sobrien strlcpy(zfile1, file1, sizeof(zfile1)); 136880638Sobrien strlcpy(zfile2, file2, sizeof(zfile2)); 136980638Sobrien strlcat(zfile1, BZCOMPRESS_POSTFIX, 137080638Sobrien sizeof(zfile1)); 137180638Sobrien strlcat(zfile2, BZCOMPRESS_POSTFIX, 137280638Sobrien sizeof(zfile2)); 137380638Sobrien if (lstat(zfile1, &st)) 137480638Sobrien continue; 137580638Sobrien } 137659003Shm } 137759003Shm if (noaction) { 1378111967Sgad printf("\tmv %s %s\n", zfile1, zfile2); 1379111967Sgad printf("\tchmod %o %s\n", ent->permissions, zfile2); 1380111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1381111967Sgad printf("\tchown %u:%u %s\n", 1382111779Sgad ent->uid, ent->gid, zfile2); 138359003Shm } else { 138459003Shm (void) rename(zfile1, zfile2); 1385111780Sgad if (chmod(zfile2, ent->permissions)) 1386111780Sgad warn("can't chmod %s", file2); 1387111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1388111779Sgad if (chown(zfile2, ent->uid, ent->gid)) 1389111779Sgad warn("can't chown %s", zfile2); 139059003Shm } 139159003Shm } 1392111388Sgad if (!noaction && !(flags & CE_BINARY)) { 1393111388Sgad /* Report the trimming to the old log */ 1394119927Sgad (void) log_trim(ent->log, ent); 1395111388Sgad } 139613244Sgraichen 1397119927Sgad if (ent->numlogs == 0) { 139818075Sjkh if (noaction) 1399119927Sgad printf("\trm %s\n", ent->log); 140018075Sjkh else 1401119927Sgad (void) unlink(ent->log); 140259003Shm } else { 1403129974Sgad if (noaction) { 1404119927Sgad printf("\tmv %s to %s\n", ent->log, file1); 1405129974Sgad printf("\tchmod %o %s\n", ent->permissions, file1); 1406129974Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1407129974Sgad printf("\tchown %u:%u %s\n", ent->uid, 1408129974Sgad ent->gid, file1); 1409129974Sgad } else { 141059004Shm if (archtodir) 1411129974Sgad movefile(ent->log, file1); 141259004Shm else 1413119927Sgad (void) rename(ent->log, file1); 1414129974Sgad if (chmod(file1, ent->permissions)) 1415129974Sgad warn("can't chmod %s", file1); 1416129974Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1417129974Sgad if (chown(file1, ent->uid, ent->gid)) 1418129974Sgad warn("can't chown %s", file1); 141959004Shm } 142018075Sjkh } 142118075Sjkh 1422111781Sgad /* Now move the new log file into place */ 1423119927Sgad /* XXX - We should replace the above 'rename' with 1424119927Sgad * 'link(ent->log, file1)' and then replace 1425119927Sgad * the following with 'createfile(ent)' */ 1426119927Sgad strlcpy(tfile, ent->log, sizeof(tfile)); 1427111967Sgad strlcat(tfile, ".XXXXXX", sizeof(tfile)); 1428111967Sgad if (noaction) { 1429111781Sgad printf("Start new log...\n"); 1430111967Sgad printf("\tmktemp %s\n", tfile); 1431111967Sgad } else { 143294352Ssheldonh mkstemp(tfile); 1433111780Sgad fd = creat(tfile, ent->permissions); 143459003Shm if (fd < 0) 143559003Shm err(1, "can't start new log"); 1436111779Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) 1437111779Sgad if (fchown(fd, ent->uid, ent->gid)) 1438111779Sgad err(1, "can't chown new log file"); 143959003Shm (void) close(fd); 1440111388Sgad if (!(flags & CE_BINARY)) { 1441111388Sgad /* Add status message to new log file */ 1442111779Sgad if (log_trim(tfile, ent)) 144359003Shm err(1, "can't add status message to log"); 1444111388Sgad } 144559003Shm } 1446111967Sgad if (noaction) { 1447111967Sgad printf("\tchmod %o %s\n", ent->permissions, tfile); 1448119927Sgad printf("\tmv %s %s\n", tfile, ent->log); 1449111967Sgad } else { 1450111780Sgad (void) chmod(tfile, ent->permissions); 1451119927Sgad if (rename(tfile, ent->log) < 0) { 145294352Ssheldonh err(1, "can't start new log"); 145394352Ssheldonh (void) unlink(tfile); 145494352Ssheldonh } 145594352Ssheldonh } 145625443Sache 1457111966Sgad /* 1458111966Sgad * Find out if there is a process to signal. If nosignal (-s) was 1459111966Sgad * specified, then do not signal any process. Note that nosignal 1460111966Sgad * will trigger a warning message if the rotated logfile needs to 1461111966Sgad * be compressed, *unless* -R was specified. This is because there 1462111966Sgad * presumably still are process(es) writing to the old logfile, but 1463111966Sgad * we assume that a -sR request comes from a process which writes 1464111966Sgad * to the logfile, and as such, that process has already made sure 1465111966Sgad * that the logfile is not presently in use. 1466111966Sgad */ 146725443Sache need_notification = notified = 0; 1468111779Sgad if (ent->pid_file != NULL) { 146925443Sache need_notification = 1; 1470111966Sgad if (!nosignal) 1471112003Sgad notified = send_signal(ent); /* the normal case! */ 1472111966Sgad else if (rotatereq) 1473111966Sgad need_notification = 0; 147425443Sache } 1475112003Sgad 147680638Sobrien if ((flags & CE_COMPACT) || (flags & CE_BZCOMPACT)) { 147725443Sache if (need_notification && !notified) 147880646Sobrien warnx( 1479112003Sgad "log %s.0 not compressed because daemon(s) not notified", 1480119927Sgad ent->log); 148125443Sache else if (noaction) 1482111967Sgad if (flags & CE_COMPACT) 1483119927Sgad printf("\tgzip %s.0\n", ent->log); 1484111967Sgad else 1485119927Sgad printf("\tbzip2 %s.0\n", ent->log); 148625443Sache else { 148725443Sache if (notified) { 148825443Sache if (verbose) 1489112003Sgad printf("small pause to allow daemon(s) to close log\n"); 149031460Sache sleep(10); 149125443Sache } 149259004Shm if (archtodir) { 149380646Sobrien (void) snprintf(file1, sizeof(file1), "%s/%s", 149480646Sobrien dirpart, namepart); 149580638Sobrien if (flags & CE_COMPACT) 1496107916Ssobomax compress_log(file1, 1497107916Ssobomax flags & CE_COMPACTWAIT); 149880638Sobrien else if (flags & CE_BZCOMPACT) 1499107916Ssobomax bzcompress_log(file1, 1500107916Ssobomax flags & CE_COMPACTWAIT); 150159004Shm } else { 150280638Sobrien if (flags & CE_COMPACT) 1503119927Sgad compress_log(ent->log, 1504107916Ssobomax flags & CE_COMPACTWAIT); 150580638Sobrien else if (flags & CE_BZCOMPACT) 1506119927Sgad bzcompress_log(ent->log, 1507107916Ssobomax flags & CE_COMPACTWAIT); 150859004Shm } 150925443Sache } 151059003Shm } 151113244Sgraichen} 151213244Sgraichen 151313244Sgraichen/* Log the fact that the logs were turned over */ 151459004Shmstatic int 1515119926Sgadlog_trim(const char *logname, const struct conf_entry *log_ent) 151613244Sgraichen{ 151759003Shm FILE *f; 1518111388Sgad const char *xtra; 151959003Shm 1520119926Sgad if ((f = fopen(logname, "a")) == NULL) 152159003Shm return (-1); 1522111388Sgad xtra = ""; 1523111768Sgad if (log_ent->def_cfg) 1524111388Sgad xtra = " using <default> rule"; 1525114137Sgad if (log_ent->firstcreate) 1526114137Sgad fprintf(f, "%s %s newsyslog[%d]: logfile first created%s\n", 1527114137Sgad daytime, hostname, (int) getpid(), xtra); 1528114137Sgad else if (log_ent->r_reason != NULL) 1529111772Sgad fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s%s\n", 1530111772Sgad daytime, hostname, (int) getpid(), log_ent->r_reason, xtra); 1531111772Sgad else 1532111772Sgad fprintf(f, "%s %s newsyslog[%d]: logfile turned over%s\n", 1533111772Sgad daytime, hostname, (int) getpid(), xtra); 153459003Shm if (fclose(f) == EOF) 1535127858Scharnier err(1, "log_trim: fclose"); 153659003Shm return (0); 153713244Sgraichen} 153813244Sgraichen 153959004Shm/* Fork of gzip to compress the old log file */ 154059004Shmstatic void 1541119926Sgadcompress_log(char *logname, int dowait) 154213244Sgraichen{ 154359003Shm pid_t pid; 154471299Sjedgar char tmp[MAXPATHLEN]; 154559003Shm 1546107916Ssobomax while (dowait && (wait(NULL) > 0 || errno == EINTR)) 1547107916Ssobomax ; 1548119926Sgad (void) snprintf(tmp, sizeof(tmp), "%s.0", logname); 154925443Sache pid = fork(); 155059003Shm if (pid < 0) 155180638Sobrien err(1, "gzip fork"); 155259003Shm else if (!pid) { 155379452Sbrian (void) execl(_PATH_GZIP, _PATH_GZIP, "-f", tmp, (char *)0); 155443071Swollman err(1, _PATH_GZIP); 155559003Shm } 155613244Sgraichen} 155713244Sgraichen 155880638Sobrien/* Fork of bzip2 to compress the old log file */ 155980638Sobrienstatic void 1560119926Sgadbzcompress_log(char *logname, int dowait) 156180638Sobrien{ 156280638Sobrien pid_t pid; 156380638Sobrien char tmp[MAXPATHLEN]; 156480638Sobrien 1565107916Ssobomax while (dowait && (wait(NULL) > 0 || errno == EINTR)) 1566107916Ssobomax ; 1567119926Sgad snprintf(tmp, sizeof(tmp), "%s.0", logname); 156880638Sobrien pid = fork(); 156980638Sobrien if (pid < 0) 157080638Sobrien err(1, "bzip2 fork"); 157180638Sobrien else if (!pid) { 157286360Sobrien execl(_PATH_BZIP2, _PATH_BZIP2, "-f", tmp, (char *)0); 157380638Sobrien err(1, _PATH_BZIP2); 157480638Sobrien } 157580638Sobrien} 157680638Sobrien 157713244Sgraichen/* Return size in kilobytes of a file */ 157859004Shmstatic int 157959004Shmsizefile(char *file) 158013244Sgraichen{ 158159003Shm struct stat sb; 158213244Sgraichen 158359003Shm if (stat(file, &sb) < 0) 158459003Shm return (-1); 158559003Shm return (kbytes(dbtob(sb.st_blocks))); 158613244Sgraichen} 158713244Sgraichen 158813244Sgraichen/* Return the age of old log file (file.0) */ 158959004Shmstatic int 159059004Shmage_old_log(char *file) 159113244Sgraichen{ 159259003Shm struct stat sb; 1593114764Sgad char *endp; 1594114764Sgad char tmp[MAXPATHLEN + sizeof(".0") + sizeof(COMPRESS_POSTFIX) + 1595114764Sgad sizeof(BZCOMPRESS_POSTFIX) + 1]; 159613244Sgraichen 159759004Shm if (archtodir) { 159859004Shm char *p; 159959004Shm 160059004Shm /* build name of archive directory into tmp */ 160159004Shm if (*archdirname == '/') { /* absolute */ 160271299Sjedgar strlcpy(tmp, archdirname, sizeof(tmp)); 160359004Shm } else { /* relative */ 160459004Shm /* get directory part of logfile */ 160571299Sjedgar strlcpy(tmp, file, sizeof(tmp)); 160659004Shm if ((p = rindex(tmp, '/')) == NULL) 160759004Shm tmp[0] = '\0'; 160859004Shm else 160959004Shm *(p + 1) = '\0'; 161071299Sjedgar strlcat(tmp, archdirname, sizeof(tmp)); 161159004Shm } 161259004Shm 161371299Sjedgar strlcat(tmp, "/", sizeof(tmp)); 161459004Shm 161559004Shm /* get filename part of logfile */ 161659004Shm if ((p = rindex(file, '/')) == NULL) 161771299Sjedgar strlcat(tmp, file, sizeof(tmp)); 161859004Shm else 161971299Sjedgar strlcat(tmp, p + 1, sizeof(tmp)); 162059004Shm } else { 162171299Sjedgar (void) strlcpy(tmp, file, sizeof(tmp)); 162259004Shm } 162359004Shm 1624114764Sgad strlcat(tmp, ".0", sizeof(tmp)); 1625114764Sgad if (stat(tmp, &sb) < 0) { 1626114764Sgad /* 1627114764Sgad * A plain '.0' file does not exist. Try again, first 1628114764Sgad * with the added suffix of '.gz', then with an added 1629114764Sgad * suffix of '.bz2' instead of '.gz'. 1630114764Sgad */ 1631114764Sgad endp = strchr(tmp, '\0'); 1632114764Sgad strlcat(tmp, COMPRESS_POSTFIX, sizeof(tmp)); 1633114764Sgad if (stat(tmp, &sb) < 0) { 1634114764Sgad *endp = '\0'; /* Remove .gz */ 1635114764Sgad strlcat(tmp, BZCOMPRESS_POSTFIX, sizeof(tmp)); 1636114764Sgad if (stat(tmp, &sb) < 0) 1637114764Sgad return (-1); 1638114764Sgad } 1639114764Sgad } 1640120361Sgad return ((int)(ptimeget_secs(timenow) - sb.st_mtime + 1800) / 3600); 164113244Sgraichen} 164213244Sgraichen 164313244Sgraichen/* Skip Over Blanks */ 1644111820Sgadstatic char * 164559004Shmsob(char *p) 164613244Sgraichen{ 164759003Shm while (p && *p && isspace(*p)) 164859003Shm p++; 164959003Shm return (p); 165013244Sgraichen} 165113244Sgraichen 165213244Sgraichen/* Skip Over Non-Blanks */ 1653111820Sgadstatic char * 165459004Shmson(char *p) 165513244Sgraichen{ 165659003Shm while (p && *p && !isspace(*p)) 165759003Shm p++; 165859003Shm return (p); 165913244Sgraichen} 166043071Swollman 1661119102Sgad/* Check if string is actually a number */ 1662119102Sgadstatic int 1663119102Sgadisnumberstr(const char *string) 1664119102Sgad{ 1665119102Sgad while (*string) { 1666119102Sgad if (!isdigitch(*string++)) 1667119102Sgad return (0); 1668119102Sgad } 1669119102Sgad return (1); 1670119102Sgad} 1671119102Sgad 167259004Shm/* physically move file */ 167359004Shmstatic void 1674129974Sgadmovefile(char *from, char *to) 167559004Shm{ 167659004Shm FILE *src, *dst; 167759004Shm int c; 167859004Shm 167959004Shm if ((src = fopen(from, "r")) == NULL) 168059004Shm err(1, "can't fopen %s for reading", from); 168159004Shm if ((dst = fopen(to, "w")) == NULL) 168259004Shm err(1, "can't fopen %s for writing", to); 168359004Shm 168459004Shm while ((c = getc(src)) != EOF) { 168559004Shm if ((putc(c, dst)) == EOF) 168659004Shm err(1, "error writing to %s", to); 168759004Shm } 168859004Shm 168959004Shm if (ferror(src)) 169059004Shm err(1, "error reading from %s", from); 169159004Shm if ((fclose(src)) != 0) 169259004Shm err(1, "can't fclose %s", to); 169359004Shm if ((fclose(dst)) != 0) 169459004Shm err(1, "can't fclose %s", from); 169559004Shm if ((unlink(from)) != 0) 169659004Shm err(1, "can't unlink %s", from); 169759004Shm} 169859004Shm 169959004Shm/* create one or more directory components of a path */ 170059004Shmstatic void 1701114137Sgadcreatedir(const struct conf_entry *ent, char *dirpart) 170259004Shm{ 1703111398Sgad int res; 170459004Shm char *s, *d; 170571299Sjedgar char mkdirpath[MAXPATHLEN]; 170659004Shm struct stat st; 170759004Shm 170859004Shm s = dirpart; 170959004Shm d = mkdirpath; 171059004Shm 171159004Shm for (;;) { 171259004Shm *d++ = *s++; 1713111398Sgad if (*s != '/' && *s != '\0') 1714111398Sgad continue; 1715111398Sgad *d = '\0'; 1716111398Sgad res = lstat(mkdirpath, &st); 1717111398Sgad if (res != 0) { 1718111398Sgad if (noaction) { 1719111967Sgad printf("\tmkdir %s\n", mkdirpath); 1720111398Sgad } else { 1721111398Sgad res = mkdir(mkdirpath, 0755); 1722111398Sgad if (res != 0) 1723111398Sgad err(1, "Error on mkdir(\"%s\") for -a", 1724111398Sgad mkdirpath); 1725111398Sgad } 172659004Shm } 172759004Shm if (*s == '\0') 172859004Shm break; 172959004Shm } 1730114137Sgad if (verbose) { 1731114137Sgad if (ent->firstcreate) 1732114137Sgad printf("Created directory '%s' for new %s\n", 1733114137Sgad dirpart, ent->log); 1734114137Sgad else 1735114137Sgad printf("Created directory '%s' for -a\n", dirpart); 1736114137Sgad } 173759004Shm} 173859004Shm 1739114137Sgad/* 1740114137Sgad * Create a new log file, destroying any currently-existing version 1741114137Sgad * of the log file in the process. If the caller wants a backup copy 1742114137Sgad * of the file to exist, they should call 'link(logfile,logbackup)' 1743114137Sgad * before calling this routine. 1744114137Sgad */ 1745114137Sgadvoid 1746114137Sgadcreatelog(const struct conf_entry *ent) 1747114137Sgad{ 1748114137Sgad int fd, failed; 1749114137Sgad struct stat st; 1750114137Sgad char *realfile, *slash, tempfile[MAXPATHLEN]; 1751114137Sgad 1752114137Sgad fd = -1; 1753114137Sgad realfile = ent->log; 1754114137Sgad 1755114137Sgad /* 1756114137Sgad * If this log file is being created for the first time (-C option), 1757114137Sgad * then it may also be true that the parent directory does not exist 1758114137Sgad * yet. Check, and create that directory if it is missing. 1759114137Sgad */ 1760114137Sgad if (ent->firstcreate) { 1761114137Sgad strlcpy(tempfile, realfile, sizeof(tempfile)); 1762114137Sgad slash = strrchr(tempfile, '/'); 1763114137Sgad if (slash != NULL) { 1764114137Sgad *slash = '\0'; 1765114137Sgad failed = lstat(tempfile, &st); 1766114137Sgad if (failed && errno != ENOENT) 1767114137Sgad err(1, "Error on lstat(%s)", tempfile); 1768114137Sgad if (failed) 1769114137Sgad createdir(ent, tempfile); 1770114137Sgad else if (!S_ISDIR(st.st_mode)) 1771114137Sgad errx(1, "%s exists but is not a directory", 1772114137Sgad tempfile); 1773114137Sgad } 1774114137Sgad } 1775114137Sgad 1776114137Sgad /* 1777114137Sgad * First create an unused filename, so it can be chown'ed and 1778114137Sgad * chmod'ed before it is moved into the real location. mkstemp 1779114137Sgad * will create the file mode=600 & owned by us. Note that all 1780114137Sgad * temp files will have a suffix of '.z<something>'. 1781114137Sgad */ 1782114137Sgad strlcpy(tempfile, realfile, sizeof(tempfile)); 1783114137Sgad strlcat(tempfile, ".zXXXXXX", sizeof(tempfile)); 1784114137Sgad if (noaction) 1785114137Sgad printf("\tmktemp %s\n", tempfile); 1786114137Sgad else { 1787114137Sgad fd = mkstemp(tempfile); 1788114137Sgad if (fd < 0) 1789114137Sgad err(1, "can't mkstemp logfile %s", tempfile); 1790114137Sgad 1791114137Sgad /* 1792114137Sgad * Add status message to what will become the new log file. 1793114137Sgad */ 1794114137Sgad if (!(ent->flags & CE_BINARY)) { 1795114137Sgad if (log_trim(tempfile, ent)) 1796114137Sgad err(1, "can't add status message to log"); 1797114137Sgad } 1798114137Sgad } 1799114137Sgad 1800114137Sgad /* Change the owner/group, if we are supposed to */ 1801114137Sgad if (ent->uid != (uid_t)-1 || ent->gid != (gid_t)-1) { 1802114137Sgad if (noaction) 1803114137Sgad printf("\tchown %u:%u %s\n", ent->uid, ent->gid, 1804114137Sgad tempfile); 1805114137Sgad else { 1806114137Sgad failed = fchown(fd, ent->uid, ent->gid); 1807114137Sgad if (failed) 1808114137Sgad err(1, "can't fchown temp file %s", tempfile); 1809114137Sgad } 1810114137Sgad } 1811114137Sgad 1812114137Sgad /* 1813114137Sgad * Note that if the real logfile still exists, and if the call 1814114137Sgad * to rename() fails, then "neither the old file nor the new 1815114137Sgad * file shall be changed or created" (to quote the standard). 1816114137Sgad * If the call succeeds, then the file will be replaced without 1817114137Sgad * any window where some other process might find that the file 1818114137Sgad * did not exist. 1819114137Sgad * XXX - ? It may be that for some error conditions, we could 1820114137Sgad * retry by first removing the realfile and then renaming. 1821114137Sgad */ 1822114137Sgad if (noaction) { 1823114137Sgad printf("\tchmod %o %s\n", ent->permissions, tempfile); 1824114137Sgad printf("\tmv %s %s\n", tempfile, realfile); 1825114137Sgad } else { 1826114137Sgad failed = fchmod(fd, ent->permissions); 1827114137Sgad if (failed) 1828114137Sgad err(1, "can't fchmod temp file '%s'", tempfile); 1829114137Sgad failed = rename(tempfile, realfile); 1830114137Sgad if (failed) 1831114137Sgad err(1, "can't mv %s to %s", tempfile, realfile); 1832114137Sgad } 1833114137Sgad 1834114137Sgad if (fd >= 0) 1835114137Sgad close(fd); 1836114137Sgad} 1837