1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #ifndef FSTACK 36 #include <sys/param.h> 37 #include <sys/time.h> 38 #include <sys/resource.h> 39 #include <sys/stat.h> 40 #include <sys/sysctl.h> 41 #include <sys/vmmeter.h> 42 #include <dev/evdev/input.h> 43 44 #ifdef __amd64__ 45 #include <sys/efi.h> 46 #include <machine/metadata.h> 47 #endif 48 49 #if defined(__amd64__) || defined(__i386__) 50 #include <machine/pc/bios.h> 51 #endif 52 53 #endif 54 55 #include <assert.h> 56 #include <ctype.h> 57 #include <err.h> 58 #include <errno.h> 59 #include <inttypes.h> 60 #include <locale.h> 61 #include <stdbool.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <sysexits.h> 66 #include <unistd.h> 67 68 #ifdef FSTACK 69 #include <time.h> 70 #include <limits.h> 71 72 #include "sys/sysctl.h" 73 #include "ff_ipc.h" 74 75 struct clockinfo { 76 int hz; /* clock frequency */ 77 int tick; /* micro-seconds per hz tick */ 78 int spare; 79 int stathz; /* statistics clock frequency */ 80 int profhz; /* profiling clock frequency */ 81 }; 82 83 struct loadavg { 84 __uint32_t ldavg[3]; 85 long fscale; 86 }; 87 88 /* Structure extended to include extended attribute field in ACPI 3.0. */ 89 struct bios_smap_xattr { 90 u_int64_t base; 91 u_int64_t length; 92 u_int32_t type; 93 u_int32_t xattr; 94 } __packed; 95 96 /* systemwide totals computed every five seconds */ 97 struct vmtotal { 98 int16_t t_rq; /* length of the run queue */ 99 int16_t t_dw; /* jobs in ``disk wait'' (neg priority) */ 100 int16_t t_pw; /* jobs in page wait */ 101 int16_t t_sl; /* jobs sleeping in core */ 102 int16_t t_sw; /* swapped out runnable/short block jobs */ 103 int32_t t_vm; /* total virtual memory */ 104 int32_t t_avm; /* active virtual memory */ 105 int32_t t_rm; /* total real memory in use */ 106 int32_t t_arm; /* active real memory */ 107 int32_t t_vmshr; /* shared virtual memory */ 108 int32_t t_avmshr; /* active shared virtual memory */ 109 int32_t t_rmshr; /* shared real memory */ 110 int32_t t_armshr; /* active shared real memory */ 111 int32_t t_free; /* free memory pages */ 112 }; 113 114 struct efi_md { 115 uint32_t md_type; 116 #define EFI_MD_TYPE_NULL 0 117 #define EFI_MD_TYPE_CODE 1 /* Loader text. */ 118 #define EFI_MD_TYPE_DATA 2 /* Loader data. */ 119 #define EFI_MD_TYPE_BS_CODE 3 /* Boot services text. */ 120 #define EFI_MD_TYPE_BS_DATA 4 /* Boot services data. */ 121 #define EFI_MD_TYPE_RT_CODE 5 /* Runtime services text. */ 122 #define EFI_MD_TYPE_RT_DATA 6 /* Runtime services data. */ 123 #define EFI_MD_TYPE_FREE 7 /* Unused/free memory. */ 124 #define EFI_MD_TYPE_BAD 8 /* Bad memory */ 125 #define EFI_MD_TYPE_RECLAIM 9 /* ACPI reclaimable memory. */ 126 #define EFI_MD_TYPE_FIRMWARE 10 /* ACPI NV memory */ 127 #define EFI_MD_TYPE_IOMEM 11 /* Memory-mapped I/O. */ 128 #define EFI_MD_TYPE_IOPORT 12 /* I/O port space. */ 129 #define EFI_MD_TYPE_PALCODE 13 /* PAL */ 130 #define EFI_MD_TYPE_PERSISTENT 14 /* Persistent memory. */ 131 uint32_t __pad; 132 uint64_t md_phys; 133 void *md_virt; 134 uint64_t md_pages; 135 uint64_t md_attr; 136 #define EFI_MD_ATTR_UC 0x0000000000000001UL 137 #define EFI_MD_ATTR_WC 0x0000000000000002UL 138 #define EFI_MD_ATTR_WT 0x0000000000000004UL 139 #define EFI_MD_ATTR_WB 0x0000000000000008UL 140 #define EFI_MD_ATTR_UCE 0x0000000000000010UL 141 #define EFI_MD_ATTR_WP 0x0000000000001000UL 142 #define EFI_MD_ATTR_RP 0x0000000000002000UL 143 #define EFI_MD_ATTR_XP 0x0000000000004000UL 144 #define EFI_MD_ATTR_RT 0x8000000000000000UL 145 }; 146 147 struct efi_map_header { 148 uint64_t memory_size; 149 uint64_t descriptor_size; 150 uint32_t descriptor_version; 151 }; 152 153 struct input_id { 154 uint16_t bustype; 155 uint16_t vendor; 156 uint16_t product; 157 uint16_t version; 158 }; 159 160 /* 161 * Top-level identifiers 162 */ 163 #define CTL_SYSCTL 0 /* "magic" numbers */ 164 #define CTL_KERN 1 /* "high kernel": proc, limits */ 165 #define CTL_VM 2 /* virtual memory */ 166 #define CTL_VFS 3 /* filesystem, mount type is next */ 167 #define CTL_NET 4 /* network, see socket.h */ 168 #define CTL_DEBUG 5 /* debugging parameters */ 169 #define CTL_HW 6 /* generic cpu/io */ 170 #define CTL_MACHDEP 7 /* machine dependent */ 171 #define CTL_USER 8 /* user-level */ 172 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 173 174 /* 175 * CTL_SYSCTL identifiers 176 */ 177 #define CTL_SYSCTL_DEBUG 0 /* printf all nodes */ 178 #define CTL_SYSCTL_NAME 1 /* string name of OID */ 179 #define CTL_SYSCTL_NEXT 2 /* next OID, honoring CTLFLAG_SKIP */ 180 #define CTL_SYSCTL_NAME2OID 3 /* int array of name */ 181 #define CTL_SYSCTL_OIDFMT 4 /* OID's kind and format */ 182 #define CTL_SYSCTL_OIDDESCR 5 /* OID's description */ 183 #define CTL_SYSCTL_OIDLABEL 6 /* aggregation label */ 184 #define CTL_SYSCTL_NEXTNOSKIP 7 /* next OID, ignoring CTLFLAG_SKIP */ 185 186 #endif 187 188 static const char *conffile; 189 190 static int aflag, bflag, Bflag, dflag, eflag, hflag, iflag; 191 static int Nflag, nflag, oflag, qflag, tflag, Tflag, Wflag, xflag; 192 193 static int oidfmt(int *, int, char *, u_int *); 194 static int parsefile(const char *); 195 static int parse(const char *, int); 196 static int show_var(int *, int, bool); 197 static int sysctl_all(int *, int); 198 static int name2oid(const char *, int *); 199 200 static int strIKtoi(const char *, char **, const char *); 201 202 static int ctl_sign[CTLTYPE+1] = { 203 [CTLTYPE_INT] = 1, 204 [CTLTYPE_LONG] = 1, 205 [CTLTYPE_S8] = 1, 206 [CTLTYPE_S16] = 1, 207 [CTLTYPE_S32] = 1, 208 [CTLTYPE_S64] = 1, 209 }; 210 211 static int ctl_size[CTLTYPE+1] = { 212 [CTLTYPE_INT] = sizeof(int), 213 [CTLTYPE_UINT] = sizeof(u_int), 214 [CTLTYPE_LONG] = sizeof(long), 215 [CTLTYPE_ULONG] = sizeof(u_long), 216 [CTLTYPE_S8] = sizeof(int8_t), 217 [CTLTYPE_S16] = sizeof(int16_t), 218 [CTLTYPE_S32] = sizeof(int32_t), 219 [CTLTYPE_S64] = sizeof(int64_t), 220 [CTLTYPE_U8] = sizeof(uint8_t), 221 [CTLTYPE_U16] = sizeof(uint16_t), 222 [CTLTYPE_U32] = sizeof(uint32_t), 223 [CTLTYPE_U64] = sizeof(uint64_t), 224 }; 225 226 static const char *ctl_typename[CTLTYPE+1] = { 227 [CTLTYPE_INT] = "integer", 228 [CTLTYPE_UINT] = "unsigned integer", 229 [CTLTYPE_LONG] = "long integer", 230 [CTLTYPE_ULONG] = "unsigned long", 231 [CTLTYPE_U8] = "uint8_t", 232 [CTLTYPE_U16] = "uint16_t", 233 [CTLTYPE_U32] = "uint32_t", 234 [CTLTYPE_U64] = "uint64_t", 235 [CTLTYPE_S8] = "int8_t", 236 [CTLTYPE_S16] = "int16_t", 237 [CTLTYPE_S32] = "int32_t", 238 [CTLTYPE_S64] = "int64_t", 239 [CTLTYPE_NODE] = "node", 240 [CTLTYPE_STRING] = "string", 241 [CTLTYPE_OPAQUE] = "opaque", 242 }; 243 244 static void 245 usage(void) 246 { 247 #ifndef FSTACK 248 (void)fprintf(stderr, "%s\n%s\n", 249 "usage: sysctl [-bdehiNnoqTtWx] [ -B <bufsize> ] [-f filename] name[=value] ...", 250 " sysctl [-bdehNnoqTtWx] [ -B <bufsize> ] -a"); 251 #else 252 (void)fprintf(stderr, "%s\n%s\n", 253 "usage: sysctl -p <f-stack proc_id> [-bdehiNnoqTtWx] [ -B <bufsize> ] [-f filename] name[=value] ...", 254 " sysctl -p <f-stack proc_id> [-bdehNnoqTtWx] [ -B <bufsize> ] -a"); 255 ff_ipc_exit(); 256 #endif 257 exit(1); 258 } 259 260 int 261 main(int argc, char **argv) 262 { 263 int ch; 264 int warncount = 0; 265 266 #ifdef FSTACK 267 ff_ipc_init(); 268 #endif 269 270 setlocale(LC_NUMERIC, ""); 271 setbuf(stdout,0); 272 setbuf(stderr,0); 273 274 #ifndef FSTACK 275 while ((ch = getopt(argc, argv, "AabB:def:hiNnoqtTwWxX")) != -1) { 276 #else 277 while ((ch = getopt(argc, argv, "AabB:def:hiNnoqtTwWxXp:")) != -1) { 278 #endif 279 switch (ch) { 280 case 'A': 281 /* compatibility */ 282 aflag = oflag = 1; 283 break; 284 case 'a': 285 aflag = 1; 286 break; 287 case 'b': 288 bflag = 1; 289 break; 290 case 'B': 291 Bflag = strtol(optarg, NULL, 0); 292 break; 293 case 'd': 294 dflag = 1; 295 break; 296 case 'e': 297 eflag = 1; 298 break; 299 case 'f': 300 conffile = optarg; 301 break; 302 case 'h': 303 hflag = 1; 304 break; 305 case 'i': 306 iflag = 1; 307 break; 308 case 'N': 309 Nflag = 1; 310 break; 311 case 'n': 312 nflag = 1; 313 break; 314 case 'o': 315 oflag = 1; 316 break; 317 case 'q': 318 qflag = 1; 319 break; 320 case 't': 321 tflag = 1; 322 break; 323 case 'T': 324 Tflag = 1; 325 break; 326 case 'w': 327 /* compatibility */ 328 /* ignored */ 329 break; 330 case 'W': 331 Wflag = 1; 332 break; 333 case 'X': 334 /* compatibility */ 335 aflag = xflag = 1; 336 break; 337 case 'x': 338 xflag = 1; 339 break; 340 #ifdef FSTACK 341 case 'p': 342 ff_set_proc_id(atoi(optarg)); 343 break; 344 #endif 345 default: 346 usage(); 347 } 348 } 349 argc -= optind; 350 argv += optind; 351 352 if (Nflag && nflag) 353 usage(); 354 if (aflag && argc == 0) 355 #ifndef FSTACK 356 exit(sysctl_all(NULL, 0)); 357 #else 358 { 359 int ret = sysctl_all(0, 0); 360 ff_ipc_exit(); 361 exit(ret); 362 } 363 #endif 364 365 if (argc == 0 && conffile == NULL) 366 usage(); 367 368 warncount = 0; 369 if (conffile != NULL) 370 warncount += parsefile(conffile); 371 372 while (argc-- > 0) 373 warncount += parse(*argv++, 0); 374 375 #ifdef FSTACK 376 ff_ipc_exit(); 377 #endif 378 379 return (warncount); 380 } 381 382 /* 383 * Parse a single numeric value, append it to 'newbuf', and update 384 * 'newsize'. Returns true if the value was parsed and false if the 385 * value was invalid. Non-numeric types (strings) are handled 386 * directly in parse(). 387 */ 388 static bool 389 parse_numeric(const char *newvalstr, const char *fmt, u_int kind, 390 void **newbufp, size_t *newsizep) 391 { 392 void *newbuf; 393 const void *newval; 394 int8_t i8val; 395 uint8_t u8val; 396 int16_t i16val; 397 uint16_t u16val; 398 int32_t i32val; 399 uint32_t u32val; 400 int intval; 401 unsigned int uintval; 402 long longval; 403 unsigned long ulongval; 404 int64_t i64val; 405 uint64_t u64val; 406 size_t valsize; 407 char *endptr = NULL; 408 409 errno = 0; 410 411 switch (kind & CTLTYPE) { 412 case CTLTYPE_INT: 413 if (strncmp(fmt, "IK", 2) == 0) 414 intval = strIKtoi(newvalstr, &endptr, fmt); 415 else 416 intval = (int)strtol(newvalstr, &endptr, 0); 417 newval = &intval; 418 valsize = sizeof(intval); 419 break; 420 case CTLTYPE_UINT: 421 uintval = (int) strtoul(newvalstr, &endptr, 0); 422 newval = &uintval; 423 valsize = sizeof(uintval); 424 break; 425 case CTLTYPE_LONG: 426 longval = strtol(newvalstr, &endptr, 0); 427 newval = &longval; 428 valsize = sizeof(longval); 429 break; 430 case CTLTYPE_ULONG: 431 ulongval = strtoul(newvalstr, &endptr, 0); 432 newval = &ulongval; 433 valsize = sizeof(ulongval); 434 break; 435 case CTLTYPE_S8: 436 i8val = (int8_t)strtol(newvalstr, &endptr, 0); 437 newval = &i8val; 438 valsize = sizeof(i8val); 439 break; 440 case CTLTYPE_S16: 441 i16val = (int16_t)strtol(newvalstr, &endptr, 0); 442 newval = &i16val; 443 valsize = sizeof(i16val); 444 break; 445 case CTLTYPE_S32: 446 i32val = (int32_t)strtol(newvalstr, &endptr, 0); 447 newval = &i32val; 448 valsize = sizeof(i32val); 449 break; 450 case CTLTYPE_S64: 451 i64val = strtoimax(newvalstr, &endptr, 0); 452 newval = &i64val; 453 valsize = sizeof(i64val); 454 break; 455 case CTLTYPE_U8: 456 u8val = (uint8_t)strtoul(newvalstr, &endptr, 0); 457 newval = &u8val; 458 valsize = sizeof(u8val); 459 break; 460 case CTLTYPE_U16: 461 u16val = (uint16_t)strtoul(newvalstr, &endptr, 0); 462 newval = &u16val; 463 valsize = sizeof(u16val); 464 break; 465 case CTLTYPE_U32: 466 u32val = (uint32_t)strtoul(newvalstr, &endptr, 0); 467 newval = &u32val; 468 valsize = sizeof(u32val); 469 break; 470 case CTLTYPE_U64: 471 u64val = strtoumax(newvalstr, &endptr, 0); 472 newval = &u64val; 473 valsize = sizeof(u64val); 474 break; 475 default: 476 /* NOTREACHED */ 477 abort(); 478 } 479 480 if (errno != 0 || endptr == newvalstr || 481 (endptr != NULL && *endptr != '\0')) 482 return (false); 483 484 newbuf = realloc(*newbufp, *newsizep + valsize); 485 if (newbuf == NULL) 486 err(1, "out of memory"); 487 memcpy((char *)newbuf + *newsizep, newval, valsize); 488 *newbufp = newbuf; 489 *newsizep += valsize; 490 491 return (true); 492 } 493 494 /* 495 * Parse a name into a MIB entry. 496 * Lookup and print out the MIB entry if it exists. 497 * Set a new value if requested. 498 */ 499 static int 500 parse(const char *string, int lineno) 501 { 502 int len, i, j, save_errno; 503 const void *newval; 504 char *newvalstr = NULL; 505 void *newbuf; 506 size_t newsize = Bflag; 507 int mib[CTL_MAXNAME]; 508 char *cp, *bufp, *buf, fmt[BUFSIZ], line[BUFSIZ]; 509 u_int kind; 510 511 if (lineno) 512 snprintf(line, sizeof(line), " at line %d", lineno); 513 else 514 line[0] = '\0'; 515 516 /* 517 * Split the string into name and value. 518 * 519 * Either = or : may be used as the delimiter. 520 * Whitespace surrounding the delimiter is trimmed. 521 * Quotes around the value are stripped. 522 */ 523 cp = buf = strdup(string); 524 bufp = strsep(&cp, "=:"); 525 if (cp != NULL) { 526 /* Tflag just lists tunables, do not allow assignment */ 527 if (Tflag || Wflag) { 528 warnx("Can't set variables when using -T or -W"); 529 usage(); 530 } 531 /* Trim whitespace before the value. */ 532 while (isspace(*cp)) 533 cp++; 534 /* Strip a pair of " or ' if any. */ 535 switch (*cp) { 536 case '\"': 537 case '\'': 538 if (cp[strlen(cp) - 1] == *cp) 539 cp[strlen(cp) - 1] = '\0'; 540 cp++; 541 } 542 newvalstr = cp; 543 newsize = strlen(cp); 544 } 545 /* Trim whitespace after the name. */ 546 cp = bufp + strlen(bufp) - 1; 547 while (cp >= bufp && isspace((int)*cp)) { 548 *cp = '\0'; 549 cp--; 550 } 551 552 /* 553 * Check the name is a useable oid. 554 */ 555 len = name2oid(bufp, mib); 556 if (len < 0) { 557 if (iflag) { 558 free(buf); 559 return (0); 560 } 561 if (!qflag) { 562 if (errno == ENOENT) { 563 warnx("unknown oid '%s'%s", bufp, line); 564 } else { 565 warn("unknown oid '%s'%s", bufp, line); 566 } 567 } 568 free(buf); 569 return (1); 570 } 571 572 if (oidfmt(mib, len, fmt, &kind)) { 573 warn("couldn't find format of oid '%s'%s", bufp, line); 574 free(buf); 575 if (iflag) 576 return (1); 577 else 578 #ifndef FSTACK 579 exit(1); 580 #else 581 { 582 ff_ipc_exit(); 583 exit(1); 584 } 585 #endif 586 } 587 588 /* 589 * We have a useable oid to work with. If there is no value given, 590 * show the node and its children. Otherwise, set the new value. 591 */ 592 if (newvalstr == NULL || dflag) { 593 free(buf); 594 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 595 if (dflag) { 596 i = show_var(mib, len, false); 597 if (!i && !bflag) 598 putchar('\n'); 599 } 600 sysctl_all(mib, len); 601 } else { 602 i = show_var(mib, len, false); 603 if (!i && !bflag) 604 putchar('\n'); 605 } 606 return (0); 607 } 608 609 /* 610 * We have a new value to set. Check its validity and parse if numeric. 611 */ 612 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 613 warnx("oid '%s' isn't a leaf node%s", bufp, line); 614 free(buf); 615 return (1); 616 } 617 618 if (!(kind & CTLFLAG_WR)) { 619 if (kind & CTLFLAG_TUN) { 620 warnx("oid '%s' is a read only tunable%s", bufp, line); 621 warnx("Tunable values are set in /boot/loader.conf"); 622 } else 623 warnx("oid '%s' is read only%s", bufp, line); 624 free(buf); 625 return (1); 626 } 627 628 switch (kind & CTLTYPE) { 629 case CTLTYPE_INT: 630 case CTLTYPE_UINT: 631 case CTLTYPE_LONG: 632 case CTLTYPE_ULONG: 633 case CTLTYPE_S8: 634 case CTLTYPE_S16: 635 case CTLTYPE_S32: 636 case CTLTYPE_S64: 637 case CTLTYPE_U8: 638 case CTLTYPE_U16: 639 case CTLTYPE_U32: 640 case CTLTYPE_U64: 641 if (strlen(newvalstr) == 0) { 642 warnx("empty numeric value"); 643 free(buf); 644 return (1); 645 } 646 /* FALLTHROUGH */ 647 case CTLTYPE_STRING: 648 break; 649 default: 650 warnx("oid '%s' is type %d, cannot set that%s", 651 bufp, kind & CTLTYPE, line); 652 free(buf); 653 return (1); 654 } 655 656 newbuf = NULL; 657 658 switch (kind & CTLTYPE) { 659 case CTLTYPE_STRING: 660 newval = newvalstr; 661 break; 662 default: 663 newsize = 0; 664 while ((cp = strsep(&newvalstr, " ,")) != NULL) { 665 if (*cp == '\0') 666 continue; 667 if (!parse_numeric(cp, fmt, kind, &newbuf, &newsize)) { 668 warnx("invalid %s '%s'%s", 669 ctl_typename[kind & CTLTYPE], cp, line); 670 free(newbuf); 671 free(buf); 672 return (1); 673 } 674 } 675 newval = newbuf; 676 break; 677 } 678 679 /* 680 * Show the current value, then set and show the new value. 681 */ 682 i = show_var(mib, len, false); 683 if (sysctl(mib, len, 0, 0, newval, newsize) == -1) { 684 save_errno = errno; 685 free(newbuf); 686 free(buf); 687 if (!i && !bflag) 688 putchar('\n'); 689 switch (save_errno) { 690 case EOPNOTSUPP: 691 warnx("%s: value is not available%s", 692 string, line); 693 return (1); 694 case ENOTDIR: 695 warnx("%s: specification is incomplete%s", 696 string, line); 697 return (1); 698 case ENOMEM: 699 warnx("%s: type is unknown to this program%s", 700 string, line); 701 return (1); 702 default: 703 #ifndef FSTACK 704 warnc(save_errno, "%s%s", string, line); 705 #else 706 warn("%s%s", string, line); 707 #endif 708 return (1); 709 } 710 } 711 free(newbuf); 712 free(buf); 713 if (!bflag) 714 printf(" -> "); 715 i = nflag; 716 nflag = 1; 717 j = show_var(mib, len, false); 718 if (!j && !bflag) 719 putchar('\n'); 720 nflag = i; 721 722 return (0); 723 } 724 725 static int 726 parsefile(const char *filename) 727 { 728 FILE *file; 729 char line[BUFSIZ], *p, *pq, *pdq; 730 int warncount = 0, lineno = 0; 731 732 file = fopen(filename, "r"); 733 if (file == NULL) 734 err(EX_NOINPUT, "%s", filename); 735 while (fgets(line, sizeof(line), file) != NULL) { 736 lineno++; 737 p = line; 738 pq = strchr(line, '\''); 739 pdq = strchr(line, '\"'); 740 /* Replace the first # with \0. */ 741 while((p = strchr(p, '#')) != NULL) { 742 if (pq != NULL && p > pq) { 743 if ((p = strchr(pq+1, '\'')) != NULL) 744 *(++p) = '\0'; 745 break; 746 } else if (pdq != NULL && p > pdq) { 747 if ((p = strchr(pdq+1, '\"')) != NULL) 748 *(++p) = '\0'; 749 break; 750 } else if (p == line || *(p-1) != '\\') { 751 *p = '\0'; 752 break; 753 } 754 p++; 755 } 756 /* Trim spaces */ 757 p = line + strlen(line) - 1; 758 while (p >= line && isspace((int)*p)) { 759 *p = '\0'; 760 p--; 761 } 762 p = line; 763 while (isspace((int)*p)) 764 p++; 765 if (*p == '\0') 766 continue; 767 else 768 warncount += parse(p, lineno); 769 } 770 fclose(file); 771 772 return (warncount); 773 } 774 775 /* These functions will dump out various interesting structures. */ 776 777 static int 778 S_clockinfo(size_t l2, void *p) 779 { 780 struct clockinfo *ci = (struct clockinfo*)p; 781 782 if (l2 != sizeof(*ci)) { 783 warnx("S_clockinfo %zu != %zu", l2, sizeof(*ci)); 784 return (1); 785 } 786 printf(hflag ? "{ hz = %'d, tick = %'d, profhz = %'d, stathz = %'d }" : 787 "{ hz = %d, tick = %d, profhz = %d, stathz = %d }", 788 ci->hz, ci->tick, ci->profhz, ci->stathz); 789 return (0); 790 } 791 792 static int 793 S_loadavg(size_t l2, void *p) 794 { 795 struct loadavg *tv = (struct loadavg*)p; 796 797 if (l2 != sizeof(*tv)) { 798 warnx("S_loadavg %zu != %zu", l2, sizeof(*tv)); 799 return (1); 800 } 801 printf(hflag ? "{ %'.2f %'.2f %'.2f }" : "{ %.2f %.2f %.2f }", 802 (double)tv->ldavg[0]/(double)tv->fscale, 803 (double)tv->ldavg[1]/(double)tv->fscale, 804 (double)tv->ldavg[2]/(double)tv->fscale); 805 return (0); 806 } 807 808 static int 809 S_timeval(size_t l2, void *p) 810 { 811 struct timeval *tv = (struct timeval*)p; 812 time_t tv_sec; 813 char *p1, *p2; 814 815 if (l2 != sizeof(*tv)) { 816 warnx("S_timeval %zu != %zu", l2, sizeof(*tv)); 817 return (1); 818 } 819 printf(hflag ? "{ sec = %'jd, usec = %'ld } " : 820 "{ sec = %jd, usec = %ld } ", 821 (intmax_t)tv->tv_sec, tv->tv_usec); 822 tv_sec = tv->tv_sec; 823 p1 = strdup(ctime(&tv_sec)); 824 for (p2=p1; *p2 ; p2++) 825 if (*p2 == '\n') 826 *p2 = '\0'; 827 fputs(p1, stdout); 828 free(p1); 829 return (0); 830 } 831 832 static int 833 S_vmtotal(size_t l2, void *p) 834 { 835 struct vmtotal *v; 836 int pageKilo; 837 838 if (l2 != sizeof(*v)) { 839 warnx("S_vmtotal %zu != %zu", l2, sizeof(*v)); 840 return (1); 841 } 842 843 v = p; 844 pageKilo = getpagesize() / 1024; 845 846 #define pg2k(a) ((uintmax_t)(a) * pageKilo) 847 printf("\nSystem wide totals computed every five seconds:" 848 " (values in kilobytes)\n"); 849 printf("===============================================\n"); 850 printf("Processes:\t\t(RUNQ: %d Disk Wait: %d Page Wait: " 851 "%d Sleep: %d)\n", 852 v->t_rq, v->t_dw, v->t_pw, v->t_sl); 853 printf("Virtual Memory:\t\t(Total: %juK Active: %juK)\n", 854 pg2k(v->t_vm), pg2k(v->t_avm)); 855 printf("Real Memory:\t\t(Total: %juK Active: %juK)\n", 856 pg2k(v->t_rm), pg2k(v->t_arm)); 857 printf("Shared Virtual Memory:\t(Total: %juK Active: %juK)\n", 858 pg2k(v->t_vmshr), pg2k(v->t_avmshr)); 859 printf("Shared Real Memory:\t(Total: %juK Active: %juK)\n", 860 pg2k(v->t_rmshr), pg2k(v->t_armshr)); 861 printf("Free Memory:\t%juK", pg2k(v->t_free)); 862 return (0); 863 } 864 865 static int 866 S_input_id(size_t l2, void *p) 867 { 868 struct input_id *id = p; 869 870 if (l2 != sizeof(*id)) { 871 warnx("S_input_id %zu != %zu", l2, sizeof(*id)); 872 return (1); 873 } 874 875 printf("{ bustype = 0x%04x, vendor = 0x%04x, " 876 "product = 0x%04x, version = 0x%04x }", 877 id->bustype, id->vendor, id->product, id->version); 878 return (0); 879 } 880 881 static int 882 S_pagesizes(size_t l2, void *p) 883 { 884 char buf[256]; 885 u_long *ps; 886 size_t l; 887 int i; 888 889 l = snprintf(buf, sizeof(buf), "{ "); 890 ps = p; 891 for (i = 0; i * sizeof(*ps) < l2 && ps[i] != 0 && l < sizeof(buf); 892 i++) { 893 l += snprintf(&buf[l], sizeof(buf) - l, 894 "%s%lu", i == 0 ? "" : ", ", ps[i]); 895 } 896 if (l < sizeof(buf)) 897 (void)snprintf(&buf[l], sizeof(buf) - l, " }"); 898 899 printf("%s", buf); 900 901 return (0); 902 } 903 904 #ifdef __amd64__ 905 #ifdef FSTACK 906 #define efi_next_descriptor(ptr, size) \ 907 ((struct efi_md *)(((uint8_t *)(ptr)) + (size))) 908 #endif 909 910 static int 911 S_efi_map(size_t l2, void *p) 912 { 913 struct efi_map_header *efihdr; 914 struct efi_md *map; 915 const char *type; 916 size_t efisz; 917 int ndesc, i; 918 919 static const char * const types[] = { 920 [EFI_MD_TYPE_NULL] = "Reserved", 921 [EFI_MD_TYPE_CODE] = "LoaderCode", 922 [EFI_MD_TYPE_DATA] = "LoaderData", 923 [EFI_MD_TYPE_BS_CODE] = "BootServicesCode", 924 [EFI_MD_TYPE_BS_DATA] = "BootServicesData", 925 [EFI_MD_TYPE_RT_CODE] = "RuntimeServicesCode", 926 [EFI_MD_TYPE_RT_DATA] = "RuntimeServicesData", 927 [EFI_MD_TYPE_FREE] = "ConventionalMemory", 928 [EFI_MD_TYPE_BAD] = "UnusableMemory", 929 [EFI_MD_TYPE_RECLAIM] = "ACPIReclaimMemory", 930 [EFI_MD_TYPE_FIRMWARE] = "ACPIMemoryNVS", 931 [EFI_MD_TYPE_IOMEM] = "MemoryMappedIO", 932 [EFI_MD_TYPE_IOPORT] = "MemoryMappedIOPortSpace", 933 [EFI_MD_TYPE_PALCODE] = "PalCode", 934 [EFI_MD_TYPE_PERSISTENT] = "PersistentMemory", 935 }; 936 937 /* 938 * Memory map data provided by UEFI via the GetMemoryMap 939 * Boot Services API. 940 */ 941 if (l2 < sizeof(*efihdr)) { 942 warnx("S_efi_map length less than header"); 943 return (1); 944 } 945 efihdr = p; 946 efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf; 947 map = (struct efi_md *)((uint8_t *)efihdr + efisz); 948 949 if (efihdr->descriptor_size == 0) 950 return (0); 951 if (l2 != efisz + efihdr->memory_size) { 952 warnx("S_efi_map length mismatch %zu vs %zu", l2, efisz + 953 efihdr->memory_size); 954 return (1); 955 } 956 ndesc = efihdr->memory_size / efihdr->descriptor_size; 957 958 printf("\n%23s %12s %12s %8s %4s", 959 "Type", "Physical", "Virtual", "#Pages", "Attr"); 960 961 for (i = 0; i < ndesc; i++, 962 map = efi_next_descriptor(map, efihdr->descriptor_size)) { 963 type = NULL; 964 if (map->md_type < nitems(types)) 965 type = types[map->md_type]; 966 if (type == NULL) 967 type = "<INVALID>"; 968 printf("\n%23s %012jx %12p %08jx ", type, 969 (uintmax_t)map->md_phys, map->md_virt, 970 (uintmax_t)map->md_pages); 971 if (map->md_attr & EFI_MD_ATTR_UC) 972 printf("UC "); 973 if (map->md_attr & EFI_MD_ATTR_WC) 974 printf("WC "); 975 if (map->md_attr & EFI_MD_ATTR_WT) 976 printf("WT "); 977 if (map->md_attr & EFI_MD_ATTR_WB) 978 printf("WB "); 979 if (map->md_attr & EFI_MD_ATTR_UCE) 980 printf("UCE "); 981 if (map->md_attr & EFI_MD_ATTR_WP) 982 printf("WP "); 983 if (map->md_attr & EFI_MD_ATTR_RP) 984 printf("RP "); 985 if (map->md_attr & EFI_MD_ATTR_XP) 986 printf("XP "); 987 if (map->md_attr & EFI_MD_ATTR_RT) 988 printf("RUNTIME"); 989 } 990 return (0); 991 } 992 #endif 993 994 #if defined(__amd64__) || defined(__i386__) 995 static int 996 S_bios_smap_xattr(size_t l2, void *p) 997 { 998 struct bios_smap_xattr *smap, *end; 999 1000 if (l2 % sizeof(*smap) != 0) { 1001 warnx("S_bios_smap_xattr %zu is not a multiple of %zu", l2, 1002 sizeof(*smap)); 1003 return (1); 1004 } 1005 1006 end = (struct bios_smap_xattr *)((char *)p + l2); 1007 for (smap = p; smap < end; smap++) 1008 printf("\nSMAP type=%02x, xattr=%02x, base=%016jx, len=%016jx", 1009 smap->type, smap->xattr, (uintmax_t)smap->base, 1010 (uintmax_t)smap->length); 1011 return (0); 1012 } 1013 #endif 1014 1015 static int 1016 strIKtoi(const char *str, char **endptrp, const char *fmt) 1017 { 1018 int kelv; 1019 float temp; 1020 size_t len; 1021 const char *p; 1022 int prec, i; 1023 1024 assert(errno == 0); 1025 1026 len = strlen(str); 1027 /* caller already checked this */ 1028 assert(len > 0); 1029 1030 /* 1031 * A format of "IK" is in deciKelvin. A format of "IK3" is in 1032 * milliKelvin. The single digit following IK is log10 of the 1033 * multiplying factor to convert Kelvin into the untis of this sysctl, 1034 * or the dividing factor to convert the sysctl value to Kelvin. Numbers 1035 * larger than 6 will run into precision issues with 32-bit integers. 1036 * Characters that aren't ASCII digits after the 'K' are ignored. No 1037 * localization is present because this is an interface from the kernel 1038 * to this program (eg not an end-user interface), so isdigit() isn't 1039 * used here. 1040 */ 1041 if (fmt[2] != '\0' && fmt[2] >= '0' && fmt[2] <= '9') 1042 prec = fmt[2] - '0'; 1043 else 1044 prec = 1; 1045 p = &str[len - 1]; 1046 if (*p == 'C' || *p == 'F' || *p == 'K') { 1047 temp = strtof(str, endptrp); 1048 if (*endptrp != str && *endptrp == p && errno == 0) { 1049 if (*p == 'F') 1050 temp = (temp - 32) * 5 / 9; 1051 *endptrp = NULL; 1052 if (*p != 'K') 1053 temp += 273.15; 1054 for (i = 0; i < prec; i++) 1055 temp *= 10.0; 1056 return ((int)(temp + 0.5)); 1057 } 1058 } else { 1059 /* No unit specified -> treat it as a raw number */ 1060 kelv = (int)strtol(str, endptrp, 10); 1061 if (*endptrp != str && *endptrp == p && errno == 0) { 1062 *endptrp = NULL; 1063 return (kelv); 1064 } 1065 } 1066 1067 errno = ERANGE; 1068 return (0); 1069 } 1070 1071 /* 1072 * These functions uses a presently undocumented interface to the kernel 1073 * to walk the tree and get the type so it can print the value. 1074 * This interface is under work and consideration, and should probably 1075 * be killed with a big axe by the first person who can find the time. 1076 * (be aware though, that the proper interface isn't as obvious as it 1077 * may seem, there are various conflicting requirements. 1078 */ 1079 1080 static int 1081 name2oid(const char *name, int *oidp) 1082 { 1083 int oid[2]; 1084 int i; 1085 size_t j; 1086 1087 oid[0] = CTL_SYSCTL; 1088 oid[1] = CTL_SYSCTL_NAME2OID; 1089 1090 j = CTL_MAXNAME * sizeof(int); 1091 i = sysctl(oid, 2, oidp, &j, name, strlen(name)); 1092 if (i < 0) 1093 return (i); 1094 j /= sizeof(int); 1095 return (j); 1096 } 1097 1098 static int 1099 oidfmt(int *oid, int len, char *fmt, u_int *kind) 1100 { 1101 int qoid[CTL_MAXNAME+2]; 1102 u_char buf[BUFSIZ]; 1103 int i; 1104 size_t j; 1105 1106 qoid[0] = CTL_SYSCTL; 1107 qoid[1] = CTL_SYSCTL_OIDFMT; 1108 memcpy(qoid + 2, oid, len * sizeof(int)); 1109 1110 j = sizeof(buf); 1111 i = sysctl(qoid, len + 2, buf, &j, 0, 0); 1112 if (i) 1113 err(1, "sysctl fmt %d %zu %d", i, j, errno); 1114 1115 if (kind) 1116 *kind = *(u_int *)buf; 1117 1118 if (fmt) 1119 strcpy(fmt, (char *)(buf + sizeof(u_int))); 1120 return (0); 1121 } 1122 1123 /* 1124 * This formats and outputs the value of one variable 1125 * 1126 * Returns zero if anything was actually output. 1127 * Returns one if didn't know what to do with this. 1128 * Return minus one if we had errors. 1129 */ 1130 static int 1131 show_var(int *oid, int nlen, bool honor_skip) 1132 { 1133 static int skip_len = 0, skip_oid[CTL_MAXNAME]; 1134 u_char buf[BUFSIZ], *val, *oval, *p; 1135 char name[BUFSIZ], fmt[BUFSIZ]; 1136 const char *sep, *sep1, *prntype; 1137 int qoid[CTL_MAXNAME+2]; 1138 uintmax_t umv; 1139 intmax_t mv; 1140 int i, hexlen, sign, ctltype; 1141 size_t intlen; 1142 size_t j, len; 1143 u_int kind; 1144 float base; 1145 int (*func)(size_t, void *); 1146 int prec; 1147 1148 /* Silence GCC. */ 1149 umv = mv = intlen = 0; 1150 1151 bzero(buf, BUFSIZ); 1152 bzero(fmt, BUFSIZ); 1153 bzero(name, BUFSIZ); 1154 qoid[0] = CTL_SYSCTL; 1155 memcpy(qoid + 2, oid, nlen * sizeof(int)); 1156 1157 qoid[1] = CTL_SYSCTL_NAME; 1158 j = sizeof(name); 1159 i = sysctl(qoid, nlen + 2, name, &j, 0, 0); 1160 if (i || !j) 1161 err(1, "sysctl name %d %zu %d", i, j, errno); 1162 1163 oidfmt(oid, nlen, fmt, &kind); 1164 /* if Wflag then only list sysctls that are writeable and not stats. */ 1165 if (Wflag && ((kind & CTLFLAG_WR) == 0 || (kind & CTLFLAG_STATS) != 0)) 1166 return (1); 1167 1168 /* if Tflag then only list sysctls that are tuneables. */ 1169 if (Tflag && (kind & CTLFLAG_TUN) == 0) 1170 return (1); 1171 1172 if (Nflag) { 1173 printf("%s", name); 1174 return (0); 1175 } 1176 1177 if (eflag) 1178 sep = "="; 1179 else 1180 sep = ": "; 1181 1182 ctltype = (kind & CTLTYPE); 1183 if (tflag || dflag) { 1184 if (!nflag) 1185 printf("%s%s", name, sep); 1186 if (ctl_typename[ctltype] != NULL) 1187 prntype = ctl_typename[ctltype]; 1188 else 1189 prntype = "unknown"; 1190 if (tflag && dflag) 1191 printf("%s%s", prntype, sep); 1192 else if (tflag) { 1193 printf("%s", prntype); 1194 return (0); 1195 } 1196 qoid[1] = CTL_SYSCTL_OIDDESCR; 1197 j = sizeof(buf); 1198 i = sysctl(qoid, nlen + 2, buf, &j, 0, 0); 1199 printf("%s", buf); 1200 return (0); 1201 } 1202 1203 /* keep track of encountered skip nodes, ignoring descendants */ 1204 if ((skip_len == 0 || skip_len >= nlen * (int)sizeof(int)) && 1205 (kind & CTLFLAG_SKIP) != 0) { 1206 /* Save this oid so we can skip descendants. */ 1207 skip_len = nlen * sizeof(int); 1208 memcpy(skip_oid, oid, skip_len); 1209 } 1210 1211 /* bail before fetching the value if we're honoring skip */ 1212 if (honor_skip) { 1213 if (0 < skip_len && skip_len <= nlen * (int)sizeof(int) && 1214 memcmp(skip_oid, oid, skip_len) == 0) 1215 return (1); 1216 /* Not a skip node or descendant of a skip node. */ 1217 skip_len = 0; 1218 } 1219 1220 /* don't fetch opaques that we don't know how to print */ 1221 if (ctltype == CTLTYPE_OPAQUE) { 1222 if (strcmp(fmt, "S,clockinfo") == 0) 1223 func = S_clockinfo; 1224 else if (strcmp(fmt, "S,timeval") == 0) 1225 func = S_timeval; 1226 else if (strcmp(fmt, "S,loadavg") == 0) 1227 func = S_loadavg; 1228 else if (strcmp(fmt, "S,vmtotal") == 0) 1229 func = S_vmtotal; 1230 else if (strcmp(fmt, "S,input_id") == 0) 1231 func = S_input_id; 1232 else if (strcmp(fmt, "S,pagesizes") == 0) 1233 func = S_pagesizes; 1234 #ifdef __amd64__ 1235 else if (strcmp(fmt, "S,efi_map_header") == 0) 1236 func = S_efi_map; 1237 #endif 1238 #if defined(__amd64__) || defined(__i386__) 1239 else if (strcmp(fmt, "S,bios_smap_xattr") == 0) 1240 func = S_bios_smap_xattr; 1241 #endif 1242 else { 1243 func = NULL; 1244 if (!bflag && !oflag && !xflag) 1245 return (1); 1246 } 1247 } 1248 1249 /* find an estimate of how much we need for this var */ 1250 if (Bflag) 1251 j = Bflag; 1252 else { 1253 j = 0; 1254 i = sysctl(oid, nlen, 0, &j, 0, 0); 1255 j += j; /* we want to be sure :-) */ 1256 } 1257 1258 val = oval = malloc(j + 1); 1259 if (val == NULL) { 1260 warnx("malloc failed"); 1261 return (1); 1262 } 1263 len = j; 1264 i = sysctl(oid, nlen, val, &len, 0, 0); 1265 if (i != 0 || (len == 0 && ctltype != CTLTYPE_STRING)) { 1266 free(oval); 1267 return (1); 1268 } 1269 1270 if (bflag) { 1271 fwrite(val, 1, len, stdout); 1272 free(oval); 1273 return (0); 1274 } 1275 val[len] = '\0'; 1276 p = val; 1277 sign = ctl_sign[ctltype]; 1278 intlen = ctl_size[ctltype]; 1279 1280 switch (ctltype) { 1281 case CTLTYPE_STRING: 1282 if (!nflag) 1283 printf("%s%s", name, sep); 1284 printf("%.*s", (int)len, p); 1285 free(oval); 1286 return (0); 1287 1288 case CTLTYPE_INT: 1289 case CTLTYPE_UINT: 1290 case CTLTYPE_LONG: 1291 case CTLTYPE_ULONG: 1292 case CTLTYPE_S8: 1293 case CTLTYPE_S16: 1294 case CTLTYPE_S32: 1295 case CTLTYPE_S64: 1296 case CTLTYPE_U8: 1297 case CTLTYPE_U16: 1298 case CTLTYPE_U32: 1299 case CTLTYPE_U64: 1300 if (!nflag) 1301 printf("%s%s", name, sep); 1302 hexlen = 2 + (intlen * CHAR_BIT + 3) / 4; 1303 sep1 = ""; 1304 while (len >= intlen) { 1305 switch (kind & CTLTYPE) { 1306 case CTLTYPE_INT: 1307 case CTLTYPE_UINT: 1308 umv = *(u_int *)p; 1309 mv = *(int *)p; 1310 break; 1311 case CTLTYPE_LONG: 1312 case CTLTYPE_ULONG: 1313 umv = *(u_long *)p; 1314 mv = *(long *)p; 1315 break; 1316 case CTLTYPE_S8: 1317 case CTLTYPE_U8: 1318 umv = *(uint8_t *)p; 1319 mv = *(int8_t *)p; 1320 break; 1321 case CTLTYPE_S16: 1322 case CTLTYPE_U16: 1323 umv = *(uint16_t *)p; 1324 mv = *(int16_t *)p; 1325 break; 1326 case CTLTYPE_S32: 1327 case CTLTYPE_U32: 1328 umv = *(uint32_t *)p; 1329 mv = *(int32_t *)p; 1330 break; 1331 case CTLTYPE_S64: 1332 case CTLTYPE_U64: 1333 umv = *(uint64_t *)p; 1334 mv = *(int64_t *)p; 1335 break; 1336 } 1337 fputs(sep1, stdout); 1338 if (xflag) 1339 printf("%#0*jx", hexlen, umv); 1340 else if (!sign) 1341 printf(hflag ? "%'ju" : "%ju", umv); 1342 else if (fmt[1] == 'K') { 1343 if (mv < 0) 1344 printf("%jd", mv); 1345 else { 1346 /* 1347 * See strIKtoi for details on fmt. 1348 */ 1349 prec = 1; 1350 if (fmt[2] != '\0') 1351 prec = fmt[2] - '0'; 1352 base = 1.0; 1353 for (int i = 0; i < prec; i++) 1354 base *= 10.0; 1355 printf("%.*fC", prec, 1356 (float)mv / base - 273.15); 1357 } 1358 } else 1359 printf(hflag ? "%'jd" : "%jd", mv); 1360 sep1 = " "; 1361 len -= intlen; 1362 p += intlen; 1363 } 1364 free(oval); 1365 return (0); 1366 1367 case CTLTYPE_OPAQUE: 1368 i = 0; 1369 if (func) { 1370 if (!nflag) 1371 printf("%s%s", name, sep); 1372 i = (*func)(len, p); 1373 free(oval); 1374 return (i); 1375 } 1376 /* FALLTHROUGH */ 1377 default: 1378 if (!oflag && !xflag) { 1379 free(oval); 1380 return (1); 1381 } 1382 if (!nflag) 1383 printf("%s%s", name, sep); 1384 printf("Format:%s Length:%zu Dump:0x", fmt, len); 1385 while (len-- && (xflag || p < val + 16)) 1386 printf("%02x", *p++); 1387 if (!xflag && len > 16) 1388 printf("..."); 1389 free(oval); 1390 return (0); 1391 } 1392 free(oval); 1393 return (1); 1394 } 1395 1396 static int 1397 sysctl_all(int *oid, int len) 1398 { 1399 int name1[22], name2[22]; 1400 int i, j; 1401 size_t l1, l2; 1402 1403 name1[0] = CTL_SYSCTL; 1404 name1[1] = (oid != NULL || Nflag || dflag || tflag) ? 1405 CTL_SYSCTL_NEXTNOSKIP : CTL_SYSCTL_NEXT; 1406 l1 = 2; 1407 if (len) { 1408 memcpy(name1 + 2, oid, len * sizeof(int)); 1409 l1 += len; 1410 } else { 1411 name1[2] = CTL_KERN; 1412 l1++; 1413 } 1414 for (;;) { 1415 l2 = sizeof(name2); 1416 j = sysctl(name1, l1, name2, &l2, 0, 0); 1417 if (j < 0) { 1418 if (errno == ENOENT) 1419 return (0); 1420 else 1421 err(1, "sysctl(getnext) %d %zu", j, l2); 1422 } 1423 1424 l2 /= sizeof(int); 1425 1426 if (len < 0 || l2 < (unsigned int)len) 1427 return (0); 1428 1429 if (memcmp(name2, oid, len * sizeof(int)) != 0) 1430 return (0); 1431 1432 i = show_var(name2, l2, true); 1433 if (!i && !bflag) 1434 putchar('\n'); 1435 1436 memcpy(name1 + 2, name2, l2 * sizeof(int)); 1437 l1 = 2 + l2; 1438 } 1439 } 1440