1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2011 Gary Mills 24 * 25 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 * Copyright (c) 2016 by Delphix. All rights reserved. 28 */ 29 30 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 31 /* All Rights Reserved */ 32 33 #include <sys/resource.h> 34 #include <sys/stat.h> 35 #include <sys/types.h> 36 37 #include <dirent.h> 38 #include <string.h> 39 #include <stdlib.h> 40 #include <fcntl.h> 41 #include <pwd.h> 42 #include <stdio.h> 43 #include <ctype.h> 44 #include <time.h> 45 #include <signal.h> 46 #include <errno.h> 47 #include <limits.h> 48 #include <ulimit.h> 49 #include <unistd.h> 50 #include <locale.h> 51 #include <libintl.h> 52 #include <tzfile.h> 53 #include <project.h> 54 #include <paths.h> 55 56 #include "cron.h" 57 58 #define TMPFILE "_at" /* prefix for temporary files */ 59 /* 60 * Mode for creating files in ATDIR. 61 * Setuid bit on so that if an owner of a file gives that file 62 * away to someone else, the setuid bit will no longer be set. 63 * If this happens, atrun will not execute the file 64 */ 65 #define ATMODE (S_ISUID | S_IRUSR | S_IRGRP | S_IROTH) 66 #define ROOT 0 /* user-id of super-user */ 67 #define MAXTRYS 100 /* max trys to create at job file */ 68 69 #define BADTIME "bad time specification" 70 #define BADQUEUE "queue name must be a single character a-z" 71 #define NOTCQUEUE "queue c is reserved for cron entries" 72 #define BADSHELL "because your login shell isn't /usr/bin/sh,"\ 73 "you can't use at" 74 #define WARNSHELL "commands will be executed using %s\n" 75 #define CANTCD "can't change directory to the at directory" 76 #define CANTCHOWN "can't change the owner of your job to you" 77 #define CANTCHUID "can't change user identifier" 78 #define CANTCREATE "can't create a job for you" 79 #define INVALIDUSER "you are not a valid user (no entry in /etc/passwd)" 80 #define NOOPENDIR "can't open the at directory" 81 #define NOTALLOWED "you are not authorized to use at. Sorry." 82 #define USAGE\ 83 "usage: at [-c|-k|-s] [-m] [-f file] [-p project] [-q queuename] "\ 84 "-t time\n"\ 85 " at [-c|-k|-s] [-m] [-f file] [-p project] [-q queuename] "\ 86 "timespec\n"\ 87 " at -l [-p project] [-q queuename] [at_job_id...]\n"\ 88 " at -r at_job_id ...\n" 89 90 #define FORMAT "%a %b %e %H:%M:%S %Y" 91 92 static int leap(int); 93 static int atoi_for2(char *); 94 static int check_queue(char *, int); 95 static int list_jobs(int, char **, int, int); 96 static int remove_jobs(int, char **, char *); 97 static void usage(void); 98 static void catch(int); 99 static void copy(char *, FILE *, int); 100 static void atime(struct tm *, struct tm *); 101 static int not_this_project(char *); 102 static char *mkjobname(time_t); 103 static time_t parse_time(char *); 104 static time_t gtime(struct tm *); 105 static void escapestr(const char *); 106 void atabort(char *)__NORETURN; 107 void yyerror(void); 108 extern int yyparse(void); 109 110 extern void audit_at_delete(char *, char *, int); 111 extern int audit_at_create(char *, int); 112 extern int audit_cron_is_anc_name(char *); 113 extern int audit_cron_delete_anc_file(char *, char *); 114 115 /* 116 * Error in getdate(3C) 117 */ 118 static char *errlist[] = { 119 /* 0 */ "", 120 /* 1 */ "getdate: The DATEMSK environment variable is not set", 121 /* 2 */ "getdate: Error on \"open\" of the template file", 122 /* 3 */ "getdate: Error on \"stat\" of the template file", 123 /* 4 */ "getdate: The template file is not a regular file", 124 /* 5 */ "getdate: An error is encountered while reading the template", 125 /* 6 */ "getdate: Malloc(3C) failed", 126 /* 7 */ "getdate: There is no line in the template that matches the input", 127 /* 8 */ "getdate: Invalid input specification" 128 }; 129 130 int gmtflag = 0; 131 int mday[12] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; 132 uid_t user; 133 struct tm *tp, at, rt; 134 static int cshflag = 0; 135 static int kshflag = 0; 136 static int shflag = 0; 137 static int mflag = 0; 138 static int pflag = 0; 139 static char *Shell; 140 static char *tfname; 141 static char pname[80]; 142 static char pname1[80]; 143 static short jobtype = ATEVENT; /* set to 1 if batch job */ 144 extern char *argp; 145 extern int per_errno; 146 static projid_t project; 147 148 int 149 main(int argc, char **argv) 150 { 151 FILE *inputfile; 152 int i, fd; 153 int try = 0; 154 int fflag = 0; 155 int lflag = 0; 156 int qflag = 0; 157 int rflag = 0; 158 int tflag = 0; 159 int c; 160 int tflen; 161 char *file; 162 char *login; 163 char *job; 164 char *jobfile = NULL; /* file containing job to be run */ 165 char argpbuf[LINE_MAX], timebuf[80]; 166 time_t now; 167 time_t when = 0; 168 struct tm *ct; 169 char *proj; 170 struct project prj, *pprj; 171 char mybuf[PROJECT_BUFSZ]; 172 char ipbuf[PROJECT_BUFSZ]; 173 174 (void) setlocale(LC_ALL, ""); 175 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 176 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ 177 #endif 178 (void) textdomain(TEXT_DOMAIN); 179 180 user = getuid(); 181 login = getuser(user); 182 if (login == NULL) { 183 if (per_errno == 2) 184 atabort(BADSHELL); 185 else 186 atabort(INVALIDUSER); 187 } 188 189 if (!allowed(login, ATALLOW, ATDENY)) 190 atabort(NOTALLOWED); 191 192 while ((c = getopt(argc, argv, "cklmsrf:p:q:t:")) != EOF) 193 switch (c) { 194 case 'c': 195 cshflag++; 196 break; 197 case 'f': 198 fflag++; 199 jobfile = optarg; 200 break; 201 case 'k': 202 kshflag++; 203 break; 204 case 'l': 205 lflag++; 206 break; 207 case 'm': 208 mflag++; 209 break; 210 case 'p': 211 proj = optarg; 212 pprj = &prj; 213 if ((pprj = getprojbyname(proj, pprj, 214 (void *)&mybuf, sizeof (mybuf))) != NULL) { 215 project = pprj->pj_projid; 216 if (inproj(login, pprj->pj_name, 217 (void *)&ipbuf, sizeof (ipbuf))) 218 pflag++; 219 else { 220 (void) fprintf(stderr, 221 gettext("at: user %s is " 222 "not a member of " 223 "project %s (%d)\n"), 224 login, pprj->pj_name, 225 project); 226 exit(2); 227 } 228 break; 229 } 230 pprj = &prj; 231 if (isdigit(proj[0]) && 232 (pprj = getprojbyid(atoi(proj), pprj, 233 (void *)&mybuf, sizeof (mybuf))) != NULL) { 234 project = pprj->pj_projid; 235 if (inproj(login, pprj->pj_name, 236 (void *)&ipbuf, sizeof (ipbuf))) 237 pflag++; 238 else { 239 (void) fprintf(stderr, 240 gettext("at: user %s is " 241 "not a member of " 242 "project %s (%d)\n"), 243 login, pprj->pj_name, 244 project); 245 exit(2); 246 } 247 break; 248 } 249 (void) fprintf(stderr, gettext("at: project " 250 "%s not found.\n"), proj); 251 exit(2); 252 break; 253 case 'q': 254 qflag++; 255 if (optarg[1] != '\0') 256 atabort(BADQUEUE); 257 jobtype = *optarg - 'a'; 258 if ((jobtype < 0) || (jobtype > 25)) 259 atabort(BADQUEUE); 260 if (jobtype == 2) 261 atabort(NOTCQUEUE); 262 break; 263 case 'r': 264 rflag++; 265 break; 266 case 's': 267 shflag++; 268 break; 269 case 't': 270 tflag++; 271 when = parse_time(optarg); 272 break; 273 default: 274 usage(); 275 } 276 277 argc -= optind; 278 argv += optind; 279 280 if (lflag + rflag > 1) 281 usage(); 282 283 if (lflag) { 284 if (cshflag || kshflag || shflag || mflag || 285 fflag || tflag || rflag) 286 usage(); 287 return (list_jobs(argc, argv, qflag, jobtype)); 288 } 289 290 if (rflag) { 291 if (cshflag || kshflag || shflag || mflag || 292 fflag || tflag || qflag) 293 usage(); 294 return (remove_jobs(argc, argv, login)); 295 } 296 297 if ((argc + tflag == 0) && (jobtype != BATCHEVENT)) 298 usage(); 299 300 if (cshflag + kshflag + shflag > 1) 301 atabort("ambiguous shell request"); 302 303 time(&now); 304 305 if (jobtype == BATCHEVENT) 306 when = now; 307 308 if (when == 0) { /* figure out what time to run the job */ 309 int argplen = sizeof (argpbuf) - 1; 310 311 argpbuf[0] = '\0'; 312 argp = argpbuf; 313 i = 0; 314 while (i < argc) { 315 /* guard against buffer overflow */ 316 argplen -= strlen(argv[i]) + 1; 317 if (argplen < 0) 318 atabort(BADTIME); 319 320 strcat(argp, argv[i]); 321 strcat(argp, " "); 322 i++; 323 } 324 if ((file = getenv("DATEMSK")) == 0 || file[0] == '\0') { 325 tp = localtime(&now); 326 /* 327 * Fix for 1047182 - we have to let yyparse 328 * check bounds on mday[] first, then fixup 329 * the leap year case. 330 */ 331 yyparse(); 332 333 mday[1] = 28 + leap(at.tm_year); 334 335 if (at.tm_mday > mday[at.tm_mon]) 336 atabort("bad date"); 337 338 atime(&at, &rt); 339 when = gtime(&at); 340 if (!gmtflag) { 341 when += timezone; 342 if (localtime(&when)->tm_isdst) 343 when -= (timezone-altzone); 344 } 345 } else { /* DATEMSK is set */ 346 if ((ct = getdate(argpbuf)) == NULL) 347 atabort(errlist[getdate_err]); 348 else 349 when = mktime(ct); 350 } 351 } 352 353 if (when < now) /* time has already past */ 354 atabort("too late"); 355 356 tflen = strlen(ATDIR) + 1 + strlen(TMPFILE) + 357 10 + 1; /* 10 for an INT_MAX pid */ 358 tfname = xmalloc(tflen); 359 snprintf(tfname, tflen, "%s/%s%d", ATDIR, TMPFILE, getpid()); 360 361 /* catch INT, HUP, TERM and QUIT signals */ 362 if (signal(SIGINT, catch) == SIG_IGN) 363 signal(SIGINT, SIG_IGN); 364 if (signal(SIGHUP, catch) == SIG_IGN) 365 signal(SIGHUP, SIG_IGN); 366 if (signal(SIGQUIT, catch) == SIG_IGN) 367 signal(SIGQUIT, SIG_IGN); 368 if (signal(SIGTERM, catch) == SIG_IGN) 369 signal(SIGTERM, SIG_IGN); 370 if ((fd = open(tfname, O_CREAT|O_EXCL|O_WRONLY, ATMODE)) < 0) 371 atabort(CANTCREATE); 372 if (chown(tfname, user, getgid()) == -1) { 373 unlink(tfname); 374 atabort(CANTCHOWN); 375 } 376 close(1); 377 dup(fd); 378 close(fd); 379 sprintf(pname, "%s", PROTO); 380 sprintf(pname1, "%s.%c", PROTO, 'a'+jobtype); 381 382 /* 383 * Open the input file with the user's permissions. 384 */ 385 if (jobfile != NULL) { 386 if ((seteuid(user) < 0) || 387 (inputfile = fopen(jobfile, "r")) == NULL) { 388 unlink(tfname); 389 fprintf(stderr, "at: %s: %s\n", jobfile, errmsg(errno)); 390 exit(1); 391 } 392 else 393 seteuid(0); 394 } else 395 inputfile = stdin; 396 397 copy(jobfile, inputfile, when); 398 while (rename(tfname, job = mkjobname(when)) == -1) { 399 sleep(1); 400 if (++try > MAXTRYS / 10) { 401 unlink(tfname); 402 atabort(CANTCREATE); 403 } 404 } 405 unlink(tfname); 406 if (audit_at_create(job, 0)) 407 atabort(CANTCREATE); 408 409 cron_sendmsg(ADD, login, strrchr(job, '/')+1, AT); 410 if (per_errno == 2) 411 fprintf(stderr, gettext(WARNSHELL), Shell); 412 cftime(timebuf, FORMAT, &when); 413 fprintf(stderr, gettext("job %s at %s\n"), 414 strrchr(job, '/')+1, timebuf); 415 if (when - MINUTE < HOUR) 416 fprintf(stderr, gettext( 417 "at: this job may not be executed at the proper time.\n")); 418 return (0); 419 } 420 421 422 static char * 423 mkjobname(time_t t) 424 { 425 int i, fd; 426 char *name; 427 428 name = xmalloc(200); 429 for (i = 0; i < MAXTRYS; i++) { 430 sprintf(name, "%s/%ld.%c", ATDIR, t, 'a'+jobtype); 431 /* fix for 1099183, 1116833 - create file here, avoid race */ 432 if ((fd = open(name, O_CREAT | O_EXCL, ATMODE)) > 0) { 433 close(fd); 434 return (name); 435 } 436 t += 1; 437 } 438 atabort("queue full"); 439 /* NOTREACHED */ 440 } 441 442 443 static void 444 catch(int x) 445 { 446 unlink(tfname); 447 exit(1); 448 } 449 450 451 void 452 atabort(char *msg) 453 { 454 fprintf(stderr, "at: %s\n", gettext(msg)); 455 456 exit(1); 457 } 458 459 int 460 yywrap(void) 461 { 462 return (1); 463 } 464 465 void 466 yyerror(void) 467 { 468 atabort(BADTIME); 469 } 470 471 /* 472 * add time structures logically 473 */ 474 static void 475 atime(struct tm *a, struct tm *b) 476 { 477 if ((a->tm_sec += b->tm_sec) >= 60) { 478 b->tm_min += a->tm_sec / 60; 479 a->tm_sec %= 60; 480 } 481 if ((a->tm_min += b->tm_min) >= 60) { 482 b->tm_hour += a->tm_min / 60; 483 a->tm_min %= 60; 484 } 485 if ((a->tm_hour += b->tm_hour) >= 24) { 486 b->tm_mday += a->tm_hour / 24; 487 a->tm_hour %= 24; 488 } 489 a->tm_year += b->tm_year; 490 if ((a->tm_mon += b->tm_mon) >= 12) { 491 a->tm_year += a->tm_mon / 12; 492 a->tm_mon %= 12; 493 } 494 a->tm_mday += b->tm_mday; 495 mday[1] = 28 + leap(a->tm_year); 496 while (a->tm_mday > mday[a->tm_mon]) { 497 a->tm_mday -= mday[a->tm_mon++]; 498 if (a->tm_mon > 11) { 499 a->tm_mon = 0; 500 mday[1] = 28 + leap(++a->tm_year); 501 } 502 } 503 504 } 505 506 static int 507 leap(int year) 508 { 509 return (isleap(year + TM_YEAR_BASE)); 510 } 511 512 /* 513 * return time from time structure 514 */ 515 static time_t 516 gtime(struct tm *tptr) 517 { 518 int i; 519 long tv; 520 int dmsize[12] = 521 {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; 522 523 524 tv = 0; 525 for (i = 1970; i != tptr->tm_year+TM_YEAR_BASE; i++) 526 tv += (365 + isleap(i)); 527 /* 528 * We call isleap since leap() adds 529 * 1900 onto any value passed 530 */ 531 532 if (!leap(tptr->tm_year) && at.tm_mday == 29 && at.tm_mon == 1) 533 atabort("bad date - not a leap year"); 534 535 if ((leap(tptr->tm_year)) && tptr->tm_mon >= 2) 536 ++tv; 537 538 for (i = 0; i < tptr->tm_mon; ++i) 539 tv += dmsize[i]; 540 tv += tptr->tm_mday - 1; 541 tv = 24 * tv + tptr->tm_hour; 542 tv = 60 * tv + tptr->tm_min; 543 tv = 60 * tv + tptr->tm_sec; 544 return (tv); 545 } 546 547 /* 548 * Escape a string to be used inside the job shell script. 549 */ 550 static void 551 escapestr(const char *str) 552 { 553 char c; 554 (void) putchar('\''); 555 while ((c = *str++) != '\0') { 556 if (c != '\'') 557 (void) putchar(c); 558 else 559 (void) fputs("'\\''", stdout); /* ' -> '\'' */ 560 } 561 (void) putchar('\''); 562 } 563 564 /* 565 * make job file from proto + stdin 566 */ 567 static void 568 copy(char *jobfile, FILE *inputfile, int when) 569 { 570 int c; 571 FILE *pfp; 572 char *shell; 573 char dirbuf[PATH_MAX + 1]; 574 char line[LINE_MAX]; 575 char **ep; 576 mode_t um; 577 char *val; 578 extern char **environ; 579 uid_t realusr, effeusr; 580 int ttyinput; 581 int ulimit_flag = 0; 582 struct rlimit rlp; 583 struct project prj, *pprj; 584 char pbuf[PROJECT_BUFSZ]; 585 char pbuf2[PROJECT_BUFSZ]; 586 char *user; 587 588 /* 589 * Fix for 1099381: 590 * If the inputfile is from a tty, then turn on prompting, and 591 * put out a prompt now, instead of waiting for a lot of file 592 * activity to complete. 593 */ 594 ttyinput = isatty(fileno(inputfile)); 595 if (ttyinput) { 596 fputs("at> ", stderr); 597 fflush(stderr); 598 } 599 600 /* 601 * Fix for 1053807: 602 * Determine what shell we should use to run the job. If the user 603 * didn't explicitly request that their current shell be over- 604 * ridden (shflag or cshflag), then we use the current shell. 605 */ 606 if (cshflag) 607 Shell = shell = "/bin/csh"; 608 else if (kshflag) { 609 Shell = shell = "/bin/ksh"; 610 ulimit_flag = 1; 611 } else if (shflag) { 612 Shell = shell = "/bin/sh"; 613 ulimit_flag = 1; 614 } else if (((Shell = val = getenv("SHELL")) != NULL) && 615 (*val != '\0')) { 616 shell = "$SHELL"; 617 if ((strstr(val, "/sh") != NULL) || 618 (strstr(val, "/ksh") != NULL)) 619 ulimit_flag = 1; 620 } else { 621 /* SHELL is NULL or unset, therefore use default */ 622 Shell = shell = _PATH_BSHELL; 623 ulimit_flag = 1; 624 } 625 626 printf(": %s job\n", jobtype ? "batch" : "at"); 627 printf(": jobname: %.127s\n", (jobfile == NULL) ? "stdin" : jobfile); 628 printf(": notify by mail: %s\n", (mflag) ? "yes" : "no"); 629 630 if (pflag) { 631 (void) printf(": project: %d\n", project); 632 } else { 633 /* 634 * Check if current user is a member of current project. 635 * This check is done here to avoid setproject() failure 636 * later when the job gets executed. If current user does 637 * not belong to current project, user's default project 638 * will be used instead. This is achieved by not specifying 639 * the project (": project: <project>\n") in the job file. 640 */ 641 if ((user = getuser(getuid())) == NULL) 642 atabort(INVALIDUSER); 643 project = getprojid(); 644 pprj = getprojbyid(project, &prj, pbuf, sizeof (pbuf)); 645 if (pprj != NULL) { 646 if (inproj(user, pprj->pj_name, pbuf2, sizeof (pbuf2))) 647 (void) printf(": project: %d\n", project); 648 } 649 } 650 651 for (ep = environ; *ep; ep++) { 652 if ((val = strchr(*ep, '=')) == NULL) 653 continue; 654 *val++ = '\0'; 655 (void) printf("export %s; %s=", *ep, *ep); 656 escapestr(val); 657 (void) putchar('\n'); 658 *--val = '='; 659 } 660 if ((pfp = fopen(pname1, "r")) == NULL && 661 (pfp = fopen(pname, "r")) == NULL) 662 atabort("no prototype"); 663 /* 664 * Put in a line to run the proper shell using the rest of 665 * the file as input. Note that 'exec'ing the shell will 666 * cause sh() to leave a /tmp/sh### file around. (1053807) 667 */ 668 printf("%s << '...the rest of this file is shell input'\n", shell); 669 670 um = umask(0); 671 while ((c = getc(pfp)) != EOF) { 672 if (c != '$') 673 putchar(c); 674 else switch (c = getc(pfp)) { 675 case EOF: 676 goto out; 677 case 'd': 678 /* 679 * Must obtain current working directory as the user 680 */ 681 682 dirbuf[0] = '\0'; 683 realusr = getuid(); 684 effeusr = geteuid(); 685 /* change euid for getcwd */ 686 if (seteuid(realusr) < 0) { 687 atabort(CANTCHUID); 688 } 689 if (getcwd(dirbuf, sizeof (dirbuf)) == NULL) { 690 atabort( 691 "can't obtain current working directory"); 692 } 693 /* change back afterwards */ 694 if (seteuid(effeusr) < 0) { 695 atabort(CANTCHUID); 696 } 697 escapestr(dirbuf); 698 break; 699 case 'm': 700 printf("%o", um); 701 break; 702 case '<': 703 if (ulimit_flag) { 704 if (getrlimit(RLIMIT_FSIZE, &rlp) == 0) { 705 if (rlp.rlim_cur == RLIM_INFINITY) 706 printf("ulimit unlimited\n"); 707 else 708 printf("ulimit %lld\n", 709 rlp.rlim_cur / 512); 710 } 711 } 712 /* 713 * fix for 1113572 - use fputs() so that a 714 * newline isn't appended to the one returned 715 * with fgets(); 1099381 - prompt for input. 716 */ 717 while (fgets(line, LINE_MAX, inputfile) != NULL) { 718 fputs(line, stdout); 719 if (ttyinput) 720 fputs("at> ", stderr); 721 } 722 if (ttyinput) /* clean up the final output */ 723 fputs("<EOT>\n", stderr); 724 break; 725 case 't': 726 printf(":%lu", when); 727 break; 728 default: 729 putchar(c); 730 } 731 } 732 out: 733 fclose(pfp); 734 fflush(NULL); 735 } 736 737 /* remove jobs that are specified */ 738 static int 739 remove_jobs(int argc, char **argv, char *login) 740 { 741 int i, r; 742 int error = 0; 743 struct stat buf; 744 struct passwd *pw; 745 746 pw = getpwuid(user); 747 if (pw == NULL) { 748 atabort("Invalid user.\n"); 749 } 750 751 if (argc == 0) 752 usage(); 753 if (chdir(ATDIR) == -1) 754 atabort(CANTCD); 755 for (i = 0; i < argc; i++) 756 if (strchr(argv[i], '/') != NULL) { 757 fprintf(stderr, "at: %s: not a valid job-id\n", 758 argv[i]); 759 } else if (stat(argv[i], &buf)) { 760 fprintf(stderr, "at: %s: ", argv[i]); 761 perror(""); 762 } else if ((user != buf.st_uid) && 763 (!cron_admin(pw->pw_name))) { 764 fprintf(stderr, "at: you don't own %s\n", 765 argv[i]); 766 error = 1; 767 } else { 768 if (cron_admin(pw->pw_name)) { 769 login = getuser((uid_t)buf.st_uid); 770 if (login == NULL) { 771 if (per_errno == 2) 772 atabort(BADSHELL); 773 else 774 atabort(INVALIDUSER); 775 } 776 } 777 cron_sendmsg(DELETE, login, argv[i], AT); 778 r = unlink(argv[i]); 779 audit_at_delete(argv[i], ATDIR, r); 780 } 781 return (error); 782 } 783 784 785 786 static int 787 list_jobs(int argc, char **argv, int qflag, int queue) 788 { 789 DIR *dir; 790 int i; 791 int error = 0; 792 char *patdir, *atdir, *ptr; 793 char timebuf[80]; 794 time_t t; 795 struct stat buf, st1, st2; 796 struct dirent *dentry; 797 struct passwd *pw; 798 unsigned int atdirlen; 799 int r; 800 struct passwd *pwd, pwds; 801 char buf_pwd[1024]; 802 char job_file[PATH_MAX]; 803 804 pwd = getpwuid_r(user, &pwds, buf_pwd, sizeof (buf_pwd)); 805 if (pwd == NULL) { 806 atabort("Invalid user.\n"); 807 } 808 809 /* list jobs for user */ 810 if (chdir(ATDIR) == -1) 811 atabort(CANTCD); 812 813 atdirlen = strlen(ATDIR); 814 atdir = xmalloc(atdirlen + 1); 815 strcpy(atdir, ATDIR); 816 patdir = strrchr(atdir, '/'); 817 *patdir = '\0'; 818 if (argc == 0) { 819 /* list all jobs for a user */ 820 if (stat(ATDIR, &st1) != 0 || stat(atdir, &st2) != 0) 821 atabort("Can not get status of spooling" 822 "directory for at"); 823 if ((dir = opendir(ATDIR)) == NULL) 824 atabort(NOOPENDIR); 825 while (1) { 826 if ((dentry = readdir(dir)) == NULL) 827 break; 828 if ((dentry->d_ino == st1.st_ino) || 829 (dentry->d_ino == st2.st_ino)) 830 continue; 831 if ((r = audit_cron_is_anc_name(dentry->d_name)) == 1) 832 continue; 833 if (stat(dentry->d_name, &buf)) { 834 unlink(dentry->d_name); 835 audit_cron_delete_anc_file(dentry->d_name, 836 NULL); 837 continue; 838 } 839 if ((!cron_admin(pwd->pw_name)) && 840 (buf.st_uid != user)) 841 continue; 842 ptr = dentry->d_name; 843 if (((t = num(&ptr)) == 0) || (*ptr != '.')) 844 continue; 845 strcpy(job_file, patdir); 846 strcat(job_file, dentry->d_name); 847 if (pflag && not_this_project(job_file)) 848 continue; 849 ascftime(timebuf, FORMAT, localtime(&t)); 850 if ((cron_admin(pwd->pw_name)) && 851 ((pw = getpwuid(buf.st_uid)) != NULL)) { 852 if (!qflag || (qflag && 853 check_queue(ptr, queue))) 854 printf("user = %s\t%s\t%s\n", 855 pw->pw_name, dentry->d_name, 856 timebuf); 857 } else 858 if (!qflag || (qflag && 859 check_queue(ptr, queue))) 860 printf("%s\t%s\n", 861 dentry->d_name, timebuf); 862 } 863 (void) closedir(dir); 864 } else /* list particular jobs for user */ 865 for (i = 0; i < argc; i++) { 866 ptr = argv[i]; 867 strlcpy(job_file, patdir, PATH_MAX); 868 strlcat(job_file, ptr, PATH_MAX); 869 if (((t = num(&ptr)) == 0) || (*ptr != '.')) { 870 fprintf(stderr, gettext( 871 "at: invalid job name %s\n"), argv[i]); 872 error = 1; 873 } else if (stat(argv[i], &buf)) { 874 fprintf(stderr, "at: %s: ", argv[i]); 875 perror(""); 876 error = 1; 877 } else if ((user != buf.st_uid) && 878 (!cron_admin(pwd->pw_name))) { 879 fprintf(stderr, gettext( 880 "at: you don't own %s\n"), argv[i]); 881 error = 1; 882 } else if (pflag && not_this_project(job_file)) { 883 continue; 884 } else { 885 if (!qflag || (qflag && 886 check_queue(ptr, queue))) { 887 ascftime(timebuf, FORMAT, 888 localtime(&t)); 889 printf("%s\t%s\n", argv[i], timebuf); 890 } 891 } 892 } 893 return (error); 894 } 895 896 /* 897 * open the command file and read the project id line 898 * compare to the project number provided via -p on the command line 899 * return 0 if they match, 1 if they don't match or an error occurs. 900 */ 901 #define SKIPCOUNT 3 /* lines to skip to get to project line in file */ 902 903 static int 904 not_this_project(char *filename) 905 { 906 FILE *fp; 907 projid_t sproj; 908 int i; 909 910 if ((fp = fopen(filename, "r")) == NULL) 911 return (1); 912 913 for (i = 0; i < SKIPCOUNT; i++) 914 fscanf(fp, "%*[^\n]\n"); 915 916 fscanf(fp, ": project: %d\n", &sproj); 917 fclose(fp); 918 919 return (sproj == project ? 0 : 1); 920 } 921 922 static int 923 check_queue(char *name, int queue) 924 { 925 if ((name[strlen(name) - 1] - 'a') == queue) 926 return (1); 927 else 928 return (0); 929 } 930 931 static time_t 932 parse_time(char *t) 933 { 934 int century = 0; 935 int seconds = 0; 936 char *p; 937 time_t when = 0; 938 struct tm tm; 939 940 /* 941 * time in the following format (defined by the touch(1) spec): 942 * [[CC]YY]MMDDhhmm[.SS] 943 */ 944 if ((p = strchr(t, '.')) != NULL) { 945 if (strchr(p+1, '.') != NULL) 946 atabort(BADTIME); 947 seconds = atoi_for2(p+1); 948 *p = '\0'; 949 } 950 951 memset(&tm, 0, sizeof (struct tm)); 952 when = time(0); 953 tm.tm_year = localtime(&when)->tm_year; 954 955 switch (strlen(t)) { 956 case 12: /* CCYYMMDDhhmm */ 957 century = atoi_for2(t); 958 t += 2; 959 /* FALLTHROUGH */ 960 case 10: /* YYMMDDhhmm */ 961 tm.tm_year = atoi_for2(t); 962 t += 2; 963 if (century == 0) { 964 if (tm.tm_year < 69) 965 tm.tm_year += 100; 966 } else 967 tm.tm_year += (century - 19) * 100; 968 /* FALLTHROUGH */ 969 case 8: /* MMDDhhmm */ 970 tm.tm_mon = atoi_for2(t) - 1; 971 t += 2; 972 tm.tm_mday = atoi_for2(t); 973 t += 2; 974 tm.tm_hour = atoi_for2(t); 975 t += 2; 976 tm.tm_min = atoi_for2(t); 977 t += 2; 978 tm.tm_sec = seconds; 979 break; 980 default: 981 atabort(BADTIME); 982 } 983 984 if ((when = mktime(&tm)) == -1) 985 atabort(BADTIME); 986 if (tm.tm_isdst) 987 when -= (timezone-altzone); 988 return (when); 989 } 990 991 static int 992 atoi_for2(char *p) 993 { 994 int value; 995 996 value = (*p - '0') * 10 + *(p+1) - '0'; 997 if ((value < 0) || (value > 99)) 998 atabort(BADTIME); 999 return (value); 1000 } 1001 1002 static void 1003 usage(void) 1004 { 1005 fprintf(stderr, USAGE); 1006 exit(1); 1007 } 1008