1 /* $NetBSD: miscbltin.c,v 1.59 2026/08/04 22:58:33 kre Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Kenneth Almquist. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)miscbltin.c 8.4 (Berkeley) 5/4/95"; 39 #else 40 __RCSID("$NetBSD: miscbltin.c,v 1.59 2026/08/04 22:58:33 kre Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 /* 45 * Miscellaneous builtins. 46 */ 47 48 #include <sys/param.h> /* BSD4_4 */ 49 #include <sys/resource.h> 50 #include <sys/stat.h> 51 #include <sys/time.h> 52 #include <sys/types.h> /* quad_t */ 53 54 #include <ctype.h> 55 #include <errno.h> 56 #include <limits.h> 57 #include <stdlib.h> 58 #ifndef SMALL 59 #include <termios.h> 60 #endif 61 #include <unistd.h> 62 63 #include "shell.h" 64 #include "syntax.h" 65 #include "options.h" 66 #include "var.h" 67 #include "input.h" /* for whichprompt */ 68 #include "output.h" 69 #include "parser.h" /* for getprompt() */ 70 #include "memalloc.h" 71 #include "error.h" 72 #include "builtins.h" 73 #include "mystring.h" 74 #include "redir.h" /* for user_fd_limit */ 75 #include "trap.h" /* for run_traps() */ 76 77 /* 78 * The read builtin. 79 * Backslashes escape the next char unless -r is specified. 80 * 81 * This uses unbuffered input, which may be avoidable in some cases. 82 * 83 * Note that if IFS=' :' then read x y should work so that: 84 * 'a b' x='a', y='b' 85 * ' a b ' x='a', y='b' 86 * ':b' x='', y='b' 87 * ':' x='', y='' 88 * '::' x='', y='' 89 * ': :' x='', y='' 90 * ':::' x='', y='::' 91 * ':b c:' x='', y='b c:' 92 */ 93 94 #ifndef SMALL 95 static int b_flag; 96 97 static int 98 setrawmode(int fd, int on, int end, struct termios *t) 99 { 100 struct termios n; 101 102 if (on) { 103 if (tcgetattr(fd, t) != 0) 104 return 0; 105 n = *t; 106 if (on == 1 && b_flag) { 107 n.c_cc[VEOL] = end; 108 } else { 109 cfmakeraw(&n); 110 n.c_iflag |= ICRNL; 111 n.c_oflag = t->c_oflag; 112 n.c_lflag |= ECHO | ISIG; 113 } 114 if (tcsetattr(fd, TCSADRAIN | TCSASOFT, &n) == 0) 115 return 1; 116 } else 117 (void)tcsetattr(fd, TCSADRAIN | TCSASOFT, t); 118 return 0; 119 } 120 121 static int 122 is_a_pipe(int fd) 123 { 124 if (lseek(fd, 0, SEEK_CUR) == -1 && errno == ESPIPE) { 125 errno = 0; 126 return 1; 127 } 128 return 0; 129 } 130 131 /* what to do with caught signals during read */ 132 static int 133 read_trap(int retry) 134 { 135 if (pendingsigs) { /* the signal was trapped */ 136 run_traps(1); /* process it */ 137 if (!retry) /* and if not "read -c", just finish */ 138 return 0; 139 } 140 return 1; /* any other case, restart the read */ 141 } 142 143 #define READ_BUFFER_SIZE 512 144 145 static int 146 next_read_char(int fd, size_t max, int retry) 147 { 148 static char buffer[READ_BUFFER_SIZE]; 149 static int pos = 0, len = 0; 150 151 if (max == 0) { 152 pos = len = 0; 153 return -1; 154 } 155 if (max == (size_t)-1) { 156 /* 157 * If possible, and necessary, rewind the file 158 * so unprocessed data can be read again next time 159 * 160 * If that fails, never mind (-b allows that to happen) 161 */ 162 if (b_flag && pos < len) 163 (void)lseek(fd, (off_t)(pos - len), SEEK_CUR); 164 return -1; 165 } 166 167 if (b_flag == 0) { 168 char c; 169 170 (void) max; 171 while ((len = read(fd, &c, 1)) != 1) { 172 if (len == -1 && errno == EINTR) { 173 if (read_trap(retry)) 174 continue; 175 errno = EINTR; 176 } 177 return len - 1; 178 } 179 return (c & 0xFF); 180 } 181 182 if (pos >= len) { 183 pos = 0; 184 if (max > sizeof buffer) 185 max = sizeof buffer; 186 while ((len = read(fd, buffer, max)) < 0) { 187 if (len == -1 && errno == EINTR) { 188 if (read_trap(retry)) 189 continue; 190 errno = EINTR; 191 } 192 break; 193 } 194 if (len <= 0) 195 return len - 1; 196 } 197 198 return buffer[pos++] & 0xFF; 199 } 200 201 static void 202 read_reset(int setraw, struct termios *ttystate) 203 { 204 (void)next_read_char(0, (size_t)-1, 0); /* attempt to seek back */ 205 if (setraw) 206 setrawmode(0, 0, 0, ttystate); 207 } 208 209 #define READ_OPTS "bcd:n:p:r" 210 211 #else 212 213 static inline int 214 simple_next_read_char(int fd, size_t max) 215 { 216 char c; 217 int len; 218 219 if (max == 0 || max == (size_t)-1) 220 return 0; 221 222 if ((len = read(fd, &c, 1)) != 1) 223 return len - 1; 224 return (c & 0xFF); 225 } 226 227 #define next_read_char(fd, max, retry) simple_next_read_char((fd), (max)) 228 229 #define read_reset(a, b) __nothing 230 #define n_flag 0 231 #define maxlen 0 232 #define retry_reads 0 233 234 #define READ_OPTS "d:p:r" 235 236 #endif 237 238 int 239 readcmd(int argc, char **argv) 240 { 241 char **ap; 242 int c; 243 char end; 244 int r_flag; 245 char *prompt; 246 const char *ifs; 247 char *p; 248 int startword; 249 int status; 250 int i; 251 int is_ifs; 252 int saveall = 0; 253 int read_tty = 0; 254 ptrdiff_t wordlen = 0; 255 char *newifs = NULL; 256 struct stackmark mk; 257 258 #ifndef SMALL 259 struct termios ttystate; 260 int n_flag, maxlen; 261 int setraw = 0; 262 int retry_reads = 0; 263 264 b_flag = 0; 265 n_flag = 0; 266 maxlen = READ_BUFFER_SIZE - 1; 267 #endif 268 269 end = '\n'; /* record delimiter */ 270 r_flag = 0; 271 prompt = NULL; 272 whichprompt = 2; /* for continuation lines */ 273 274 while ((i = nextopt(READ_OPTS)) != '\0') { 275 switch (i) { 276 case 'd': 277 end = *optionarg; /* even if '\0' */ 278 break; 279 case 'p': 280 prompt = optionarg; 281 break; 282 case 'r': 283 r_flag = 1; 284 break; 285 #ifndef SMALL 286 case 'b': 287 if (!is_a_pipe(0)) 288 b_flag = 1; 289 break; 290 case 'c': 291 retry_reads = 1; /* upon EINTR */ 292 break; 293 case 'n': 294 maxlen = number(optionarg); 295 if (maxlen > (INT_MAX >> 8) + 1) /* sanity */ 296 error("-n %s too large", optionarg); 297 n_flag = 1; 298 break; 299 #endif 300 } 301 } 302 303 if (*(ap = argptr) == NULL) 304 error("variable name required\n" 305 #ifdef SMALL 306 "Usage: read [-r] [-d C] [-p prompt] var..."); 307 #else 308 "Usage: read [-br] [-d C] [-n len] [-p prompt] var..."); 309 310 while (*ap != NULL) { 311 if (!validname(*ap, '\0', NULL)) 312 error("'%s': invalid variable name", *ap); 313 ap++; 314 } 315 ap = argptr; 316 317 (void)next_read_char(0, 0, 0); /* ensure the buffer is empty */ 318 #endif 319 320 if (isatty(0)) { 321 read_tty = 1; 322 if (prompt) { 323 out2str(prompt); 324 flushall(); 325 } 326 #ifndef SMALL 327 b_flag = 1; /* always buffer reads from ttys */ 328 329 if (n_flag || end != '\n') 330 setraw = setrawmode(0, 1 + n_flag, end, &ttystate); 331 #endif 332 } 333 334 if ((ifs = bltinlookup("IFS", 1)) == NULL) 335 ifs = " \t\n"; 336 337 setstackmark(&mk); 338 status = 0; 339 startword = 2; 340 STARTSTACKSTR(p); 341 342 #ifdef SMALL 343 for ( ; ; ) { 344 #else 345 for ( ; !n_flag || --maxlen >= 0 ; ) { 346 #endif 347 if ((c = next_read_char(0, maxlen + 1, retry_reads)) < 0) { 348 #ifndef SMALL 349 if (c <= -2 && errno != EINTR) { 350 read_reset(setraw, &ttystate); 351 error("read error"); 352 } 353 if (errno == EINTR) 354 status = 128 + SIGINT; 355 else 356 #endif 357 status = 1; 358 break; 359 } 360 if (c == '\\' && c != end && !r_flag) { 361 #ifndef SMALL 362 if (n_flag && --maxlen < 0) 363 break; 364 #endif 365 if ((c = next_read_char(0, maxlen + 1, retry_reads)) 366 < 0) { 367 #ifndef SMALL 368 if (c <= -2 && errno != EINTR) { 369 read_reset(setraw, &ttystate); 370 error("read error"); 371 } 372 if (errno == EINTR) 373 status = 128 + SIGINT; 374 else 375 #endif 376 status = 1; 377 break; 378 } 379 if (c != '\n') /* \ \n is always just removed */ 380 goto wdch; 381 if (read_tty) 382 out2str(getprompt(NULL)); 383 continue; 384 } 385 if (c == end) 386 break; 387 if (c == '\0') 388 continue; 389 if (strchr(ifs, c)) 390 is_ifs = strchr(" \t\n", c) ? 1 : 2; 391 else 392 is_ifs = 0; 393 394 if (startword != 0) { 395 if (is_ifs == 1) { 396 /* Ignore leading IFS whitespace */ 397 if (saveall) 398 STPUTC(c, p); 399 continue; 400 } 401 if (is_ifs == 2 && startword == 1) { 402 /* Only one non-whitespace IFS per word */ 403 startword = 2; 404 if (saveall) 405 STPUTC(c, p); 406 continue; 407 } 408 } 409 410 if (is_ifs == 0) { 411 wdch:; 412 if (c == '\0') /* always ignore attempts to input \0 */ 413 continue; 414 /* append this character to the current variable */ 415 startword = 0; 416 if (saveall) 417 /* Not just a spare terminator */ 418 saveall++; 419 STPUTC(c, p); 420 wordlen = p - stackblock(); 421 continue; 422 } 423 424 /* end of variable... */ 425 startword = is_ifs; 426 427 if (ap[1] == NULL) { 428 /* Last variable needs all IFS chars */ 429 saveall++; 430 STPUTC(c, p); 431 continue; 432 } 433 434 if (equal(*ap, "IFS")) { 435 /* 436 * we must not alter the value of IFS, as our 437 * local "ifs" var is (perhaps) pointing at it, 438 * at best we would be using data after free() 439 * the next time we reference ifs - but that mem 440 * may have been reused for something different. 441 * 442 * note that this might occur several times 443 */ 444 STPUTC('\0', p); 445 newifs = grabstackstr(p); 446 } else { 447 STACKSTRNUL(p); 448 setvar(*ap, stackblock(), 0); 449 } 450 ap++; 451 STARTSTACKSTR(p); 452 wordlen = 0; 453 } 454 STACKSTRNUL(p); 455 456 read_reset(setraw, &ttystate); 457 458 /* Remove trailing IFS chars */ 459 for (; stackblock() + wordlen <= --p; *p = 0) { 460 if (!strchr(ifs, *p)) 461 break; 462 if (strchr(" \t\n", *p)) 463 /* Always remove whitespace */ 464 continue; 465 if (saveall > 1) 466 /* Don't remove non-whitespace unless it was naked */ 467 break; 468 } 469 470 /* 471 * If IFS was one of the variables named, we can finally set it now 472 * (no further references to ifs will be made) 473 */ 474 if (newifs != NULL) 475 setvar("IFS", newifs, 0); 476 477 /* 478 * Now we can assign to the final variable (which might 479 * also be IFS, hence the ordering here) 480 */ 481 setvar(*ap, stackblock(), 0); 482 483 /* Set any remaining args to "" */ 484 while (*++ap != NULL) 485 setvar(*ap, nullstr, 0); 486 487 popstackmark(&mk); 488 return status; 489 } 490 491 /* -- end read builtin */ 492 493 494 /* 495 * Other small builtin utilities (the u*s) 496 */ 497 498 int 499 umaskcmd(int argc, char **argv) 500 { 501 char *ap; 502 mode_t mask; 503 int i; 504 int symbolic_mode = 0; 505 506 while ((i = nextopt("S")) != '\0') { 507 symbolic_mode = 1; 508 } 509 510 INTOFF; 511 mask = umask(0); 512 umask(mask); 513 INTON; 514 515 if ((ap = *argptr) == NULL) { 516 if (symbolic_mode) { 517 char u[4], g[4], o[4]; 518 519 i = 0; 520 if ((mask & S_IRUSR) == 0) 521 u[i++] = 'r'; 522 if ((mask & S_IWUSR) == 0) 523 u[i++] = 'w'; 524 if ((mask & S_IXUSR) == 0) 525 u[i++] = 'x'; 526 u[i] = '\0'; 527 528 i = 0; 529 if ((mask & S_IRGRP) == 0) 530 g[i++] = 'r'; 531 if ((mask & S_IWGRP) == 0) 532 g[i++] = 'w'; 533 if ((mask & S_IXGRP) == 0) 534 g[i++] = 'x'; 535 g[i] = '\0'; 536 537 i = 0; 538 if ((mask & S_IROTH) == 0) 539 o[i++] = 'r'; 540 if ((mask & S_IWOTH) == 0) 541 o[i++] = 'w'; 542 if ((mask & S_IXOTH) == 0) 543 o[i++] = 'x'; 544 o[i] = '\0'; 545 546 out1fmt("u=%s,g=%s,o=%s\n", u, g, o); 547 } else { 548 out1fmt("%.4o\n", mask); 549 } 550 } else { 551 if (is_digit(*ap)) { 552 int range = 0; 553 554 mask = 0; 555 do { 556 if (*ap >= '8' || *ap < '0') 557 error("Not a valid octal number: '%s'", 558 *argptr); 559 mask = (mask << 3) + (*ap - '0'); 560 if (mask & ~07777) 561 range = 1; 562 } while (*++ap != '\0'); 563 if (range) 564 error("Mask constant '%s' out of range", *argptr); 565 umask(mask); 566 } else { 567 void *set; 568 569 INTOFF; 570 if ((set = setmode(ap)) != 0) { 571 mask = getmode(set, ~mask & 0777); 572 ckfree(set); 573 } 574 INTON; 575 if (!set) 576 error("Cannot set mode `%s' (%s)", ap, 577 strerror(errno)); 578 579 umask(~mask & 0777); 580 } 581 } 582 flushout(out1); 583 if (io_err(out1)) { 584 out2str("umask: I/O error\n"); 585 return 1; 586 } 587 return 0; 588 } 589 590 /* 591 * ulimit builtin 592 * 593 * This code, originally by Doug Gwyn, Doug Kingston, Eric Gisin, and 594 * Michael Rendell was ripped from pdksh 5.0.8 and hacked for use with 595 * ash by J.T. Conklin. 596 * 597 * Public domain. 598 */ 599 600 struct limits { 601 const char *name; 602 const char *unit; 603 char option; 604 int8_t cmd; /* all RLIMIT_xxx are <= 127 */ 605 unsigned short factor; /* multiply by to get rlim_{cur,max} values */ 606 }; 607 608 #define OPTSTRING_BASE "HSa" 609 610 static const struct limits limits[] = { 611 #ifdef RLIMIT_CPU 612 { "time", "seconds", 't', RLIMIT_CPU, 1 }, 613 #define OPTSTRING_t OPTSTRING_BASE "t" 614 #else 615 #define OPTSTRING_t OPTSTRING_BASE 616 #endif 617 #ifdef RLIMIT_FSIZE 618 { "file", "blocks", 'f', RLIMIT_FSIZE, 512 }, 619 #define OPTSTRING_f OPTSTRING_t "f" 620 #else 621 #define OPTSTRING_f OPTSTRING_t 622 #endif 623 #ifdef RLIMIT_DATA 624 { "data", "kbytes", 'd', RLIMIT_DATA, 1024 }, 625 #define OPTSTRING_d OPTSTRING_f "d" 626 #else 627 #define OPTSTRING_d OPTSTRING_f 628 #endif 629 #ifdef RLIMIT_STACK 630 { "stack", "kbytes", 's', RLIMIT_STACK, 1024 }, 631 #define OPTSTRING_s OPTSTRING_d "s" 632 #else 633 #define OPTSTRING_s OPTSTRING_d 634 #endif 635 #ifdef RLIMIT_CORE 636 { "coredump", "blocks", 'c', RLIMIT_CORE, 512 }, 637 #define OPTSTRING_c OPTSTRING_s "c" 638 #else 639 #define OPTSTRING_c OPTSTRING_s 640 #endif 641 #ifdef RLIMIT_RSS 642 { "memory", "kbytes", 'm', RLIMIT_RSS, 1024 }, 643 #define OPTSTRING_m OPTSTRING_c "m" 644 #else 645 #define OPTSTRING_m OPTSTRING_c 646 #endif 647 #ifdef RLIMIT_MEMLOCK 648 { "locked memory","kbytes", 'l', RLIMIT_MEMLOCK, 1024 }, 649 #define OPTSTRING_l OPTSTRING_m "l" 650 #else 651 #define OPTSTRING_l OPTSTRING_m 652 #endif 653 #ifdef RLIMIT_NTHR 654 { "thread", "threads", 'r', RLIMIT_NTHR, 1 }, 655 #define OPTSTRING_r OPTSTRING_l "r" 656 #else 657 #define OPTSTRING_r OPTSTRING_l 658 #endif 659 #ifdef RLIMIT_NPROC 660 { "process", "processes", 'p', RLIMIT_NPROC, 1 }, 661 #define OPTSTRING_p OPTSTRING_r "p" 662 #else 663 #define OPTSTRING_p OPTSTRING_r 664 #endif 665 #ifdef RLIMIT_NOFILE 666 { "nofiles", "descriptors", 'n', RLIMIT_NOFILE, 1 }, 667 #define OPTSTRING_n OPTSTRING_p "n" 668 #else 669 #define OPTSTRING_n OPTSTRING_p 670 #endif 671 #ifdef RLIMIT_VMEM 672 { "vmemory", "kbytes", 'v', RLIMIT_VMEM, 1024 }, 673 #define OPTSTRING_v OPTSTRING_n "v" 674 #else 675 #define OPTSTRING_v OPTSTRING_n 676 #endif 677 #ifdef RLIMIT_SWAP 678 { "swap", "kbytes", 'w', RLIMIT_SWAP, 1024 }, 679 #define OPTSTRING_w OPTSTRING_v "w" 680 #else 681 #define OPTSTRING_w OPTSTRING_v 682 #endif 683 #ifdef RLIMIT_SBSIZE 684 { "sbsize", "bytes", 'b', RLIMIT_SBSIZE, 1 }, 685 #define OPTSTRING_b OPTSTRING_w "b" 686 #else 687 #define OPTSTRING_b OPTSTRING_w 688 #endif 689 { NULL, NULL, '\0', 0, 0 } 690 }; 691 #define OPTSTRING OPTSTRING_b 692 693 int 694 ulimitcmd(int argc, char **argv) 695 { 696 int c; 697 rlim_t val = 0; 698 enum { SOFT = 0x1, HARD = 0x2 } 699 how = 0, which; 700 const struct limits *l; 701 int set, all = 0; 702 int optc, what; 703 struct rlimit limit; 704 705 what = 'f'; 706 while ((optc = nextopt(OPTSTRING)) != '\0') 707 switch (optc) { 708 case 'H': 709 how |= HARD; 710 break; 711 case 'S': 712 how |= SOFT; 713 break; 714 case 'a': 715 all = 1; 716 break; 717 default: 718 what = optc; 719 } 720 721 for (l = limits; l->name && l->option != what; l++) 722 ; 723 if (!l->name) 724 error("internal error (%c)", what); 725 726 set = *argptr ? 1 : 0; 727 if (set) { 728 char *p = *argptr; 729 730 if (all || argptr[1]) 731 error("too many arguments"); 732 if (how == 0) 733 how = HARD | SOFT; 734 735 if (strcmp(p, "unlimited") == 0) 736 val = RLIM_INFINITY; 737 else { 738 val = (rlim_t) 0; 739 740 while ((c = *p++) >= '0' && c <= '9') { 741 if (val >= RLIM_INFINITY/10) 742 error("%s: value overflow", *argptr); 743 val = (val * 10); 744 if (val >= RLIM_INFINITY - (long)(c - '0')) 745 error("%s: value overflow", *argptr); 746 val += (long)(c - '0'); 747 } 748 if (c) 749 error("%s: bad number", *argptr); 750 if (val > RLIM_INFINITY / l->factor) 751 error("%s: value overflow", *argptr); 752 val *= l->factor; 753 } 754 } else if (how == 0) 755 how = SOFT; 756 757 if (all) { 758 for (l = limits; l->name; l++) { 759 getrlimit(l->cmd, &limit); 760 out1fmt("%-13s (-%c %-11s) ", l->name, l->option, 761 l->unit); 762 763 which = how; 764 while (which != 0) { 765 if (which & SOFT) { 766 val = limit.rlim_cur; 767 which &= ~SOFT; 768 } else if (which & HARD) { 769 val = limit.rlim_max; 770 which &= ~HARD; 771 } 772 773 if (val == RLIM_INFINITY) 774 out1fmt("unlimited"); 775 else { 776 val /= l->factor; 777 #ifdef BSD4_4 778 out1fmt("%9lld", (long long) val); 779 #else 780 out1fmt("%9ld", (long) val); 781 #endif 782 } 783 out1fmt("%c", which ? '\t' : '\n'); 784 } 785 } 786 goto done; 787 } 788 789 if (getrlimit(l->cmd, &limit) == -1) 790 error("error getting limit (%s)", strerror(errno)); 791 if (set) { 792 if (how & HARD) 793 limit.rlim_max = val; 794 if (how & SOFT) 795 limit.rlim_cur = val; 796 if (setrlimit(l->cmd, &limit) < 0) 797 error("error setting limit (%s)", strerror(errno)); 798 if (l->cmd == RLIMIT_NOFILE) 799 user_fd_limit = sysconf(_SC_OPEN_MAX); 800 } else { 801 if (how & SOFT) 802 val = limit.rlim_cur; 803 else if (how & HARD) 804 val = limit.rlim_max; 805 806 if (val == RLIM_INFINITY) 807 out1fmt("unlimited\n"); 808 else 809 { 810 val /= l->factor; 811 #ifdef BSD4_4 812 out1fmt("%lld\n", (long long) val); 813 #else 814 out1fmt("%ld\n", (long) val); 815 #endif 816 } 817 } 818 done:; 819 flushout(out1); 820 if (io_err(out1)) { 821 out2str("ulimit: I/O error (stdout)\n"); 822 return 1; 823 } 824 return 0; 825 } 826
Indexes created Sun Oct 25 00:26:45 UTC 2026