crontab.c revision 50479
12311Sjkh/* Copyright 1988,1990,1993,1994 by Paul Vixie 22311Sjkh * All rights reserved 32311Sjkh * 42311Sjkh * Distribute freely, except: don't remove my name from the source or 52311Sjkh * documentation (don't take credit for my work), mark your changes (don't 62311Sjkh * get me blamed for your possible bugs), don't alter or remove this 72311Sjkh * notice. May be sold if buildable source is provided to buyer. No 82311Sjkh * warrantee of any kind, express or implied, is included with this 92311Sjkh * software; use at your own risk, responsibility for damages (if any) to 102311Sjkh * anyone resulting from the use of this software rests entirely with the 112311Sjkh * user. 122311Sjkh * 132311Sjkh * Send bug reports, bug fixes, enhancements, requests, flames, etc., and 142311Sjkh * I'll try to keep a version up to date. I can be reached as follows: 152311Sjkh * Paul Vixie <paul@vix.com> uunet!decwrl!vixie!paul 165176Sache * From Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp 172311Sjkh */ 182311Sjkh 192311Sjkh#if !defined(lint) && !defined(LINT) 2029452Scharnierstatic const char rcsid[] = 2150479Speter "$FreeBSD: head/usr.sbin/cron/crontab/crontab.c 50479 1999-08-28 01:35:59Z peter $"; 222311Sjkh#endif 232311Sjkh 242311Sjkh/* crontab - install and manage per-user crontab files 252311Sjkh * vix 02may87 [RCS has the rest of the log] 262311Sjkh * vix 26jan87 [original] 272311Sjkh */ 282311Sjkh 292311Sjkh#define MAIN_PROGRAM 302311Sjkh 312311Sjkh#include "cron.h" 322311Sjkh#include <errno.h> 332311Sjkh#include <fcntl.h> 342311Sjkh#include <sys/file.h> 352311Sjkh#include <sys/stat.h> 362311Sjkh#ifdef USE_UTIMES 372311Sjkh# include <sys/time.h> 382311Sjkh#else 392311Sjkh# include <time.h> 402311Sjkh# include <utime.h> 412311Sjkh#endif 422311Sjkh#if defined(POSIX) 432311Sjkh# include <locale.h> 442311Sjkh#endif 452311Sjkh 462311Sjkh 472311Sjkh#define NHEADER_LINES 3 482311Sjkh 492311Sjkh 502311Sjkhenum opt_t { opt_unknown, opt_list, opt_delete, opt_edit, opt_replace }; 512311Sjkh 522311Sjkh#if DEBUGGING 532311Sjkhstatic char *Options[] = { "???", "list", "delete", "edit", "replace" }; 542311Sjkh#endif 552311Sjkh 562311Sjkh 572311Sjkhstatic PID_T Pid; 582311Sjkhstatic char User[MAX_UNAME], RealUser[MAX_UNAME]; 592311Sjkhstatic char Filename[MAX_FNAME]; 602311Sjkhstatic FILE *NewCrontab; 612311Sjkhstatic int CheckErrorCount; 622311Sjkhstatic enum opt_t Option; 632311Sjkhstatic struct passwd *pw; 642311Sjkhstatic void list_cmd __P((void)), 652311Sjkh delete_cmd __P((void)), 662311Sjkh edit_cmd __P((void)), 672311Sjkh poke_daemon __P((void)), 682311Sjkh check_error __P((char *)), 692311Sjkh parse_args __P((int c, char *v[])); 702311Sjkhstatic int replace_cmd __P((void)); 712311Sjkh 722311Sjkh 732311Sjkhstatic void 742311Sjkhusage(msg) 752311Sjkh char *msg; 762311Sjkh{ 7729452Scharnier fprintf(stderr, "crontab: usage error: %s\n", msg); 7829452Scharnier fprintf(stderr, "%s\n%s\n", 7929452Scharnier "usage: crontab [-u user] file", 8029452Scharnier " crontab [-u user] { -e | -l | -r }"); 812311Sjkh exit(ERROR_EXIT); 822311Sjkh} 832311Sjkh 842311Sjkh 852311Sjkhint 862311Sjkhmain(argc, argv) 872311Sjkh int argc; 882311Sjkh char *argv[]; 892311Sjkh{ 902311Sjkh int exitstatus; 912311Sjkh 922311Sjkh Pid = getpid(); 932311Sjkh ProgramName = argv[0]; 942311Sjkh 952311Sjkh#if defined(POSIX) 962311Sjkh setlocale(LC_ALL, ""); 972311Sjkh#endif 982311Sjkh 992311Sjkh#if defined(BSD) 1002311Sjkh setlinebuf(stderr); 1012311Sjkh#endif 1022311Sjkh parse_args(argc, argv); /* sets many globals, opens a file */ 1032311Sjkh set_cron_uid(); 1042311Sjkh set_cron_cwd(); 1052311Sjkh if (!allowed(User)) { 10629452Scharnier warnx("you (%s) are not allowed to use this program", User); 1072311Sjkh log_it(RealUser, Pid, "AUTH", "crontab command not allowed"); 1082311Sjkh exit(ERROR_EXIT); 1092311Sjkh } 1102311Sjkh exitstatus = OK_EXIT; 1112311Sjkh switch (Option) { 1122311Sjkh case opt_list: list_cmd(); 1132311Sjkh break; 1142311Sjkh case opt_delete: delete_cmd(); 1152311Sjkh break; 1162311Sjkh case opt_edit: edit_cmd(); 1172311Sjkh break; 1182311Sjkh case opt_replace: if (replace_cmd() < 0) 1192311Sjkh exitstatus = ERROR_EXIT; 1202311Sjkh break; 12129452Scharnier case opt_unknown: 12229452Scharnier break; 1232311Sjkh } 1242311Sjkh exit(0); 1252311Sjkh /*NOTREACHED*/ 1262311Sjkh} 1272311Sjkh 1288857Srgrimes 1292311Sjkhstatic void 1302311Sjkhparse_args(argc, argv) 1312311Sjkh int argc; 1322311Sjkh char *argv[]; 1332311Sjkh{ 1342311Sjkh int argch; 1352311Sjkh 13629452Scharnier if (!(pw = getpwuid(getuid()))) 13729452Scharnier errx(ERROR_EXIT, "your UID isn't in the passwd file, bailing out"); 13820573Spst (void) strncpy(User, pw->pw_name, (sizeof User)-1); 13920573Spst User[(sizeof User)-1] = '\0'; 1402311Sjkh strcpy(RealUser, User); 1412311Sjkh Filename[0] = '\0'; 1422311Sjkh Option = opt_unknown; 14324428Simp while ((argch = getopt(argc, argv, "u:lerx:")) != -1) { 1442311Sjkh switch (argch) { 1452311Sjkh case 'x': 1462311Sjkh if (!set_debug_flags(optarg)) 1472311Sjkh usage("bad debug option"); 1482311Sjkh break; 1492311Sjkh case 'u': 1502311Sjkh if (getuid() != ROOT_UID) 15129452Scharnier errx(ERROR_EXIT, "must be privileged to use -u"); 1522311Sjkh if (!(pw = getpwnam(optarg))) 15329452Scharnier errx(ERROR_EXIT, "user `%s' unknown", optarg); 15420573Spst (void) strncpy(User, pw->pw_name, (sizeof User)-1); 15520573Spst User[(sizeof User)-1] = '\0'; 1562311Sjkh break; 1572311Sjkh case 'l': 1582311Sjkh if (Option != opt_unknown) 1592311Sjkh usage("only one operation permitted"); 1602311Sjkh Option = opt_list; 1612311Sjkh break; 1622311Sjkh case 'r': 1632311Sjkh if (Option != opt_unknown) 1642311Sjkh usage("only one operation permitted"); 1652311Sjkh Option = opt_delete; 1662311Sjkh break; 1672311Sjkh case 'e': 1682311Sjkh if (Option != opt_unknown) 1692311Sjkh usage("only one operation permitted"); 1702311Sjkh Option = opt_edit; 1712311Sjkh break; 1722311Sjkh default: 1732311Sjkh usage("unrecognized option"); 1742311Sjkh } 1752311Sjkh } 1762311Sjkh 1772311Sjkh endpwent(); 1782311Sjkh 1792311Sjkh if (Option != opt_unknown) { 1802311Sjkh if (argv[optind] != NULL) { 1812311Sjkh usage("no arguments permitted after this option"); 1822311Sjkh } 1832311Sjkh } else { 1842311Sjkh if (argv[optind] != NULL) { 1852311Sjkh Option = opt_replace; 18620573Spst (void) strncpy (Filename, argv[optind], (sizeof Filename)-1); 18720573Spst Filename[(sizeof Filename)-1] = '\0'; 18820573Spst 1892311Sjkh } else { 1902311Sjkh usage("file name must be specified for replace"); 1912311Sjkh } 1922311Sjkh } 1932311Sjkh 1942311Sjkh if (Option == opt_replace) { 1952311Sjkh /* we have to open the file here because we're going to 1962311Sjkh * chdir(2) into /var/cron before we get around to 1972311Sjkh * reading the file. 1982311Sjkh */ 1992311Sjkh if (!strcmp(Filename, "-")) { 2002311Sjkh NewCrontab = stdin; 2012311Sjkh } else { 2022311Sjkh /* relinquish the setuid status of the binary during 2032311Sjkh * the open, lest nonroot users read files they should 2042311Sjkh * not be able to read. we can't use access() here 2052311Sjkh * since there's a race condition. thanks go out to 2062311Sjkh * Arnt Gulbrandsen <agulbra@pvv.unit.no> for spotting 2072311Sjkh * the race. 2082311Sjkh */ 2092311Sjkh 21029452Scharnier if (swap_uids() < OK) 21129452Scharnier err(ERROR_EXIT, "swapping uids"); 21229452Scharnier if (!(NewCrontab = fopen(Filename, "r"))) 21329452Scharnier err(ERROR_EXIT, "%s", Filename); 21429452Scharnier if (swap_uids() < OK) 21529452Scharnier err(ERROR_EXIT, "swapping uids back"); 2162311Sjkh } 2172311Sjkh } 2182311Sjkh 2192311Sjkh Debug(DMISC, ("user=%s, file=%s, option=%s\n", 2202311Sjkh User, Filename, Options[(int)Option])) 2212311Sjkh} 2222311Sjkh 2232311Sjkh 2242311Sjkhstatic void 2252311Sjkhlist_cmd() { 2262311Sjkh char n[MAX_FNAME]; 2272311Sjkh FILE *f; 2282311Sjkh int ch; 2292311Sjkh 2302311Sjkh log_it(RealUser, Pid, "LIST", User); 2312311Sjkh (void) sprintf(n, CRON_TAB(User)); 2322311Sjkh if (!(f = fopen(n, "r"))) { 2332311Sjkh if (errno == ENOENT) 23429452Scharnier errx(ERROR_EXIT, "no crontab for %s", User); 2352311Sjkh else 23629452Scharnier err(ERROR_EXIT, "%s", n); 2372311Sjkh } 2382311Sjkh 2392311Sjkh /* file is open. copy to stdout, close. 2402311Sjkh */ 2412311Sjkh Set_LineNum(1) 2422311Sjkh while (EOF != (ch = get_char(f))) 2432311Sjkh putchar(ch); 2442311Sjkh fclose(f); 2452311Sjkh} 2462311Sjkh 2472311Sjkh 2482311Sjkhstatic void 2492311Sjkhdelete_cmd() { 2502311Sjkh char n[MAX_FNAME]; 2512311Sjkh 2522311Sjkh log_it(RealUser, Pid, "DELETE", User); 2532311Sjkh (void) sprintf(n, CRON_TAB(User)); 2542311Sjkh if (unlink(n)) { 2552311Sjkh if (errno == ENOENT) 25629452Scharnier errx(ERROR_EXIT, "no crontab for %s", User); 2572311Sjkh else 25829452Scharnier err(ERROR_EXIT, "%s", n); 2592311Sjkh } 2602311Sjkh poke_daemon(); 2612311Sjkh} 2622311Sjkh 2632311Sjkh 2642311Sjkhstatic void 2652311Sjkhcheck_error(msg) 2662311Sjkh char *msg; 2672311Sjkh{ 2682311Sjkh CheckErrorCount++; 2692311Sjkh fprintf(stderr, "\"%s\":%d: %s\n", Filename, LineNumber-1, msg); 2702311Sjkh} 2712311Sjkh 2722311Sjkh 2732311Sjkhstatic void 2742311Sjkhedit_cmd() { 2752311Sjkh char n[MAX_FNAME], q[MAX_TEMPSTR], *editor; 2762311Sjkh FILE *f; 2772311Sjkh int ch, t, x; 2782311Sjkh struct stat statbuf; 2792311Sjkh time_t mtime; 2802311Sjkh WAIT_T waiter; 2812311Sjkh PID_T pid, xpid; 28220573Spst mode_t um; 2832311Sjkh 2842311Sjkh log_it(RealUser, Pid, "BEGIN EDIT", User); 2852311Sjkh (void) sprintf(n, CRON_TAB(User)); 2862311Sjkh if (!(f = fopen(n, "r"))) { 28729452Scharnier if (errno != ENOENT) 28829452Scharnier err(ERROR_EXIT, "%s", n); 28929452Scharnier warnx("no crontab for %s - using an empty one", User); 29029452Scharnier if (!(f = fopen("/dev/null", "r"))) 29129452Scharnier err(ERROR_EXIT, "/dev/null"); 2922311Sjkh } 2932311Sjkh 29420573Spst um = umask(077); 29520573Spst (void) sprintf(Filename, "/tmp/crontab.XXXXXXXXXX"); 29620573Spst if ((t = mkstemp(Filename)) == -1) { 29729452Scharnier warn("%s", Filename); 29820573Spst (void) umask(um); 2992311Sjkh goto fatal; 3002311Sjkh } 30120573Spst (void) umask(um); 3022311Sjkh#ifdef HAS_FCHOWN 3032311Sjkh if (fchown(t, getuid(), getgid()) < 0) { 3042311Sjkh#else 3052311Sjkh if (chown(Filename, getuid(), getgid()) < 0) { 3062311Sjkh#endif 30729452Scharnier warn("fchown"); 3082311Sjkh goto fatal; 3092311Sjkh } 3105176Sache if (!(NewCrontab = fdopen(t, "w"))) { 31129452Scharnier warn("fdopen"); 3122311Sjkh goto fatal; 3132311Sjkh } 3142311Sjkh 3152311Sjkh Set_LineNum(1) 3162311Sjkh 3172311Sjkh /* ignore the top few comments since we probably put them there. 3182311Sjkh */ 3192311Sjkh for (x = 0; x < NHEADER_LINES; x++) { 3202311Sjkh ch = get_char(f); 3212311Sjkh if (EOF == ch) 3222311Sjkh break; 3232311Sjkh if ('#' != ch) { 3242311Sjkh putc(ch, NewCrontab); 3252311Sjkh break; 3262311Sjkh } 3272311Sjkh while (EOF != (ch = get_char(f))) 3282311Sjkh if (ch == '\n') 3292311Sjkh break; 3302311Sjkh if (EOF == ch) 3312311Sjkh break; 3322311Sjkh } 3332311Sjkh 3342311Sjkh /* copy the rest of the crontab (if any) to the temp file. 3352311Sjkh */ 3362311Sjkh if (EOF != ch) 3372311Sjkh while (EOF != (ch = get_char(f))) 3382311Sjkh putc(ch, NewCrontab); 3392311Sjkh fclose(f); 34029452Scharnier if (fclose(NewCrontab)) 34129452Scharnier err(ERROR_EXIT, "%s", Filename); 3422311Sjkh again: 3435176Sache if (stat(Filename, &statbuf) < 0) { 34429452Scharnier warn("stat"); 3452311Sjkh fatal: unlink(Filename); 3462311Sjkh exit(ERROR_EXIT); 3472311Sjkh } 3482311Sjkh mtime = statbuf.st_mtime; 3492311Sjkh 3502311Sjkh if ((!(editor = getenv("VISUAL"))) 3512311Sjkh && (!(editor = getenv("EDITOR"))) 3522311Sjkh ) { 3532311Sjkh editor = EDITOR; 3542311Sjkh } 3552311Sjkh 3562311Sjkh /* we still have the file open. editors will generally rewrite the 3572311Sjkh * original file rather than renaming/unlinking it and starting a 3582311Sjkh * new one; even backup files are supposed to be made by copying 3592311Sjkh * rather than by renaming. if some editor does not support this, 3602311Sjkh * then don't use it. the security problems are more severe if we 3612311Sjkh * close and reopen the file around the edit. 3622311Sjkh */ 3632311Sjkh 3642311Sjkh switch (pid = fork()) { 3652311Sjkh case -1: 36629452Scharnier warn("fork"); 3672311Sjkh goto fatal; 3682311Sjkh case 0: 3692311Sjkh /* child */ 37029452Scharnier if (setuid(getuid()) < 0) 37129452Scharnier err(ERROR_EXIT, "setuid(getuid())"); 37229452Scharnier if (chdir("/tmp") < 0) 37329452Scharnier err(ERROR_EXIT, "chdir(/tmp)"); 37429452Scharnier if (strlen(editor) + strlen(Filename) + 2 >= MAX_TEMPSTR) 37529452Scharnier errx(ERROR_EXIT, "editor or filename too long"); 37615161Sscrappy execlp(editor, editor, Filename, NULL); 37729452Scharnier err(ERROR_EXIT, "%s", editor); 3782311Sjkh /*NOTREACHED*/ 3792311Sjkh default: 3802311Sjkh /* parent */ 3812311Sjkh break; 3822311Sjkh } 3832311Sjkh 3842311Sjkh /* parent */ 38515161Sscrappy { 38615161Sscrappy void (*f[4])(); 38715161Sscrappy f[0] = signal(SIGHUP, SIG_IGN); 38815161Sscrappy f[1] = signal(SIGINT, SIG_IGN); 38915161Sscrappy f[2] = signal(SIGTERM, SIG_IGN); 3902311Sjkh xpid = wait(&waiter); 39115161Sscrappy signal(SIGHUP, f[0]); 39215161Sscrappy signal(SIGINT, f[1]); 39315161Sscrappy signal(SIGTERM, f[2]); 39415161Sscrappy } 3952311Sjkh if (xpid != pid) { 39629452Scharnier warnx("wrong PID (%d != %d) from \"%s\"", xpid, pid, editor); 3972311Sjkh goto fatal; 3982311Sjkh } 3992311Sjkh if (WIFEXITED(waiter) && WEXITSTATUS(waiter)) { 40029452Scharnier warnx("\"%s\" exited with status %d", editor, WEXITSTATUS(waiter)); 4012311Sjkh goto fatal; 4022311Sjkh } 4032311Sjkh if (WIFSIGNALED(waiter)) { 40429452Scharnier warnx("\"%s\" killed; signal %d (%score dumped)", 40529452Scharnier editor, WTERMSIG(waiter), WCOREDUMP(waiter) ?"" :"no "); 4062311Sjkh goto fatal; 4072311Sjkh } 4085176Sache if (stat(Filename, &statbuf) < 0) { 40929452Scharnier warn("stat"); 4102311Sjkh goto fatal; 4112311Sjkh } 4122311Sjkh if (mtime == statbuf.st_mtime) { 41329452Scharnier warnx("no changes made to crontab"); 4142311Sjkh goto remove; 4152311Sjkh } 41629452Scharnier warnx("installing new crontab"); 4175176Sache if (!(NewCrontab = fopen(Filename, "r"))) { 41829452Scharnier warn("%s", Filename); 4195176Sache goto fatal; 4205176Sache } 4212311Sjkh switch (replace_cmd()) { 4222311Sjkh case 0: 4232311Sjkh break; 4242311Sjkh case -1: 4252311Sjkh for (;;) { 4262311Sjkh printf("Do you want to retry the same edit? "); 4272311Sjkh fflush(stdout); 4282311Sjkh q[0] = '\0'; 4292311Sjkh (void) fgets(q, sizeof q, stdin); 4302311Sjkh switch (islower(q[0]) ? q[0] : tolower(q[0])) { 4312311Sjkh case 'y': 4322311Sjkh goto again; 4332311Sjkh case 'n': 4342311Sjkh goto abandon; 4352311Sjkh default: 4362311Sjkh fprintf(stderr, "Enter Y or N\n"); 4372311Sjkh } 4382311Sjkh } 4392311Sjkh /*NOTREACHED*/ 4402311Sjkh case -2: 4412311Sjkh abandon: 44229452Scharnier warnx("edits left in %s", Filename); 4432311Sjkh goto done; 4442311Sjkh default: 44529452Scharnier warnx("panic: bad switch() in replace_cmd()"); 4462311Sjkh goto fatal; 4472311Sjkh } 4482311Sjkh remove: 4492311Sjkh unlink(Filename); 4502311Sjkh done: 4512311Sjkh log_it(RealUser, Pid, "END EDIT", User); 4522311Sjkh} 4532311Sjkh 4548857Srgrimes 4552311Sjkh/* returns 0 on success 4562311Sjkh * -1 on syntax error 4572311Sjkh * -2 on install error 4582311Sjkh */ 4592311Sjkhstatic int 4602311Sjkhreplace_cmd() { 4612311Sjkh char n[MAX_FNAME], envstr[MAX_ENVSTR], tn[MAX_FNAME]; 4622311Sjkh FILE *tmp; 4632311Sjkh int ch, eof; 4642311Sjkh entry *e; 4652311Sjkh time_t now = time(NULL); 4662311Sjkh char **envp = env_init(); 4672311Sjkh 46820573Spst if (envp == NULL) { 46929452Scharnier warnx("cannot allocate memory"); 47020573Spst return (-2); 47120573Spst } 47220573Spst 4732311Sjkh (void) sprintf(n, "tmp.%d", Pid); 4742311Sjkh (void) sprintf(tn, CRON_TAB(n)); 4752311Sjkh if (!(tmp = fopen(tn, "w+"))) { 47629452Scharnier warn("%s", tn); 4772311Sjkh return (-2); 4782311Sjkh } 4792311Sjkh 4802311Sjkh /* write a signature at the top of the file. 4812311Sjkh * 4822311Sjkh * VERY IMPORTANT: make sure NHEADER_LINES agrees with this code. 4832311Sjkh */ 4842311Sjkh fprintf(tmp, "# DO NOT EDIT THIS FILE - edit the master and reinstall.\n"); 4852311Sjkh fprintf(tmp, "# (%s installed on %-24.24s)\n", Filename, ctime(&now)); 4862311Sjkh fprintf(tmp, "# (Cron version -- %s)\n", rcsid); 4872311Sjkh 4882311Sjkh /* copy the crontab to the tmp 4892311Sjkh */ 4902311Sjkh Set_LineNum(1) 4912311Sjkh while (EOF != (ch = get_char(NewCrontab))) 4922311Sjkh putc(ch, tmp); 4935176Sache fclose(NewCrontab); 4942311Sjkh ftruncate(fileno(tmp), ftell(tmp)); 4952311Sjkh fflush(tmp); rewind(tmp); 4962311Sjkh 4972311Sjkh if (ferror(tmp)) { 49829452Scharnier warnx("error while writing new crontab to %s", tn); 4992311Sjkh fclose(tmp); unlink(tn); 5002311Sjkh return (-2); 5012311Sjkh } 5022311Sjkh 5032311Sjkh /* check the syntax of the file being installed. 5042311Sjkh */ 5052311Sjkh 5062311Sjkh /* BUG: was reporting errors after the EOF if there were any errors 5072311Sjkh * in the file proper -- kludged it by stopping after first error. 5082311Sjkh * vix 31mar87 5092311Sjkh */ 5102311Sjkh Set_LineNum(1 - NHEADER_LINES) 5112311Sjkh CheckErrorCount = 0; eof = FALSE; 5122311Sjkh while (!CheckErrorCount && !eof) { 5132311Sjkh switch (load_env(envstr, tmp)) { 5142311Sjkh case ERR: 5152311Sjkh eof = TRUE; 5162311Sjkh break; 5172311Sjkh case FALSE: 5182311Sjkh e = load_entry(tmp, check_error, pw, envp); 5192311Sjkh if (e) 5202311Sjkh free(e); 5212311Sjkh break; 5222311Sjkh case TRUE: 5232311Sjkh break; 5242311Sjkh } 5252311Sjkh } 5262311Sjkh 5272311Sjkh if (CheckErrorCount != 0) { 52829452Scharnier warnx("errors in crontab file, can't install"); 5292311Sjkh fclose(tmp); unlink(tn); 5302311Sjkh return (-1); 5312311Sjkh } 5322311Sjkh 5332311Sjkh#ifdef HAS_FCHOWN 5342311Sjkh if (fchown(fileno(tmp), ROOT_UID, -1) < OK) 5352311Sjkh#else 5362311Sjkh if (chown(tn, ROOT_UID, -1) < OK) 5372311Sjkh#endif 5382311Sjkh { 53929452Scharnier warn("chown"); 5402311Sjkh fclose(tmp); unlink(tn); 5412311Sjkh return (-2); 5422311Sjkh } 5432311Sjkh 5442311Sjkh#ifdef HAS_FCHMOD 5452311Sjkh if (fchmod(fileno(tmp), 0600) < OK) 5462311Sjkh#else 5472311Sjkh if (chmod(tn, 0600) < OK) 5482311Sjkh#endif 5492311Sjkh { 55029452Scharnier warn("chown"); 5512311Sjkh fclose(tmp); unlink(tn); 5522311Sjkh return (-2); 5532311Sjkh } 5542311Sjkh 5552311Sjkh if (fclose(tmp) == EOF) { 55629452Scharnier warn("fclose"); 5572311Sjkh unlink(tn); 5582311Sjkh return (-2); 5592311Sjkh } 5602311Sjkh 5612311Sjkh (void) sprintf(n, CRON_TAB(User)); 5622311Sjkh if (rename(tn, n)) { 56329452Scharnier warn("error renaming %s to %s", tn, n); 5642311Sjkh unlink(tn); 5652311Sjkh return (-2); 5662311Sjkh } 5672311Sjkh log_it(RealUser, Pid, "REPLACE", User); 5682311Sjkh 5692311Sjkh poke_daemon(); 5702311Sjkh 5712311Sjkh return (0); 5722311Sjkh} 5732311Sjkh 5742311Sjkh 5752311Sjkhstatic void 5762311Sjkhpoke_daemon() { 5772311Sjkh#ifdef USE_UTIMES 5782311Sjkh struct timeval tvs[2]; 5792311Sjkh struct timezone tz; 5802311Sjkh 5812311Sjkh (void) gettimeofday(&tvs[0], &tz); 5822311Sjkh tvs[1] = tvs[0]; 5832311Sjkh if (utimes(SPOOL_DIR, tvs) < OK) { 58429452Scharnier warn("can't update mtime on spooldir %s", SPOOL_DIR); 5852311Sjkh return; 5862311Sjkh } 5872311Sjkh#else 5882311Sjkh if (utime(SPOOL_DIR, NULL) < OK) { 58929452Scharnier warn("can't update mtime on spooldir %s", SPOOL_DIR); 5902311Sjkh return; 5912311Sjkh } 5922311Sjkh#endif /*USE_UTIMES*/ 5932311Sjkh} 594