1 /* 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#) Copyright (c) 1993 The Regents of the University of California. All rights reserved. 30 * @(#)from: sysctl.c 8.1 (Berkeley) 6/6/93 31 * $FreeBSD: src/sbin/sysctl/sysctl.c,v 1.25.2.11 2003/05/01 22:48:08 trhodes Exp $ 32 */ 33 34 #include <sys/types.h> 35 #include <sys/stat.h> 36 #include <sys/sysctl.h> 37 #include <sys/resource.h> 38 #include <sys/sensors.h> 39 #include <sys/param.h> 40 41 #ifdef __x86_64__ 42 #include <sys/efi.h> 43 #include <machine/metadata.h> 44 #endif 45 46 #include <ctype.h> 47 #include <err.h> 48 #include <errno.h> 49 #include <inttypes.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <unistd.h> 54 55 static int aflag, bflag, dflag, eflag, Nflag, nflag, oflag, xflag; 56 static int iflag, qflag; 57 58 static int oidfmt(int *, size_t, char *, u_int *); 59 static int parse(const char *); 60 static int show_var(int *, size_t); 61 static int sysctl_all(int *, size_t); 62 static void set_T_dev_t(const char *, void **, size_t *); 63 static int set_IK(const char *, int *); 64 65 static void 66 usage(void) 67 { 68 69 fprintf(stderr, "%s\n%s\n", 70 "usage: sysctl [-bdeNnox] variable[=value] ...", 71 " sysctl [-bdeNnox] -a"); 72 exit(1); 73 } 74 75 int 76 main(int argc, char **argv) 77 { 78 int ch; 79 int warncount; 80 81 setbuf(stdout,0); 82 setbuf(stderr,0); 83 84 while ((ch = getopt(argc, argv, "AabdeiNnoqwxX")) != -1) { 85 switch (ch) { 86 case 'A': 87 /* compatibility */ 88 aflag = oflag = 1; 89 break; 90 case 'a': 91 aflag = 1; 92 break; 93 case 'b': 94 bflag = 1; 95 break; 96 case 'd': 97 dflag = 1; 98 break; 99 case 'e': 100 eflag = 1; 101 break; 102 case 'i': 103 iflag = 1; 104 break; 105 case 'N': 106 Nflag = 1; 107 break; 108 case 'n': 109 nflag = 1; 110 break; 111 case 'o': 112 oflag = 1; 113 break; 114 case 'q': 115 qflag = 1; 116 break; 117 case 'w': 118 /* compatibility */ 119 /* ignored */ 120 break; 121 case 'X': 122 /* compatibility */ 123 aflag = xflag = 1; 124 break; 125 case 'x': 126 xflag = 1; 127 break; 128 default: 129 usage(); 130 } 131 } 132 argc -= optind; 133 argv += optind; 134 135 if (Nflag && nflag) 136 usage(); 137 if (aflag && argc == 0) 138 exit(sysctl_all(0, 0)); 139 if (argc == 0) 140 usage(); 141 warncount = 0; 142 while (argc-- > 0) 143 warncount += parse(*argv++); 144 145 return warncount; 146 } 147 148 /* 149 * Parse a name into a MIB entry. 150 * Lookup and print out the MIB entry if it exists. 151 * Set a new value if requested. 152 */ 153 static int 154 parse(const char *string) 155 { 156 size_t len; 157 int i, j; 158 void *newval = NULL; 159 int8_t i8val; 160 uint8_t u8val; 161 int16_t i16val; 162 uint16_t u16val; 163 int32_t i32val; 164 uint32_t u32val; 165 int64_t i64val; 166 uint64_t u64val; 167 int intval; 168 unsigned int uintval; 169 long longval; 170 unsigned long ulongval; 171 size_t newsize = 0; 172 int mib[CTL_MAXNAME]; 173 char *cp, fmt[BUFSIZ]; 174 const char *name; 175 char *name_allocated = NULL; 176 u_int kind; 177 178 if ((cp = strchr(string, '=')) != NULL) { 179 if ((name_allocated = malloc(cp - string + 1)) == NULL) 180 err(1, "malloc failed"); 181 strlcpy(name_allocated, string, cp - string + 1); 182 name = name_allocated; 183 184 while (isspace(*++cp)) 185 ; 186 187 newval = cp; 188 newsize = strlen(cp); 189 } else { 190 name = string; 191 } 192 193 len = CTL_MAXNAME; 194 if (sysctlnametomib(name, mib, &len) < 0) { 195 if (iflag) 196 return 0; 197 if (qflag) 198 return 1; 199 if (errno == ENOENT) { 200 errx(1, "unknown oid '%s'", name); 201 } else { 202 err(1, "sysctlnametomib(\"%s\")", name); 203 } 204 } 205 206 if (oidfmt(mib, len, fmt, &kind)) { 207 warn("couldn't find format of oid '%s'", name); 208 if (iflag) 209 return 1; 210 exit(1); 211 } 212 213 if (newval == NULL) { 214 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 215 sysctl_all(mib, len); 216 } else { 217 i = show_var(mib, len); 218 if (!i && !bflag) 219 putchar('\n'); 220 } 221 } else { 222 if ((kind & CTLTYPE) == CTLTYPE_NODE) 223 errx(1, "oid '%s' isn't a leaf node", name); 224 225 if (!(kind&CTLFLAG_WR)) 226 errx(1, "oid '%s' is read only", name); 227 228 switch (kind & CTLTYPE) { 229 case CTLTYPE_INT: 230 if (!(strcmp(fmt, "IK") == 0)) { 231 if (!set_IK(newval, &intval)) 232 errx(1, "invalid value '%s'", 233 (char *)newval); 234 } else 235 intval = (int) strtol(newval, NULL, 0); 236 newval = &intval; 237 newsize = sizeof(intval); 238 break; 239 case CTLTYPE_UINT: 240 uintval = (int) strtoul(newval, NULL, 0); 241 newval = &uintval; 242 newsize = sizeof uintval; 243 break; 244 case CTLTYPE_LONG: 245 longval = strtol(newval, NULL, 0); 246 newval = &longval; 247 newsize = sizeof longval; 248 break; 249 case CTLTYPE_ULONG: 250 ulongval = strtoul(newval, NULL, 0); 251 newval = &ulongval; 252 newsize = sizeof ulongval; 253 break; 254 case CTLTYPE_STRING: 255 break; 256 case CTLTYPE_S8: 257 i8val = (int8_t)strtol(newval, NULL, 0); 258 newval = &i8val; 259 newsize = sizeof(i8val); 260 break; 261 case CTLTYPE_S16: 262 i16val = (int16_t)strtol(newval, NULL, 0); 263 newval = &i16val; 264 newsize = sizeof(i16val); 265 break; 266 case CTLTYPE_S32: 267 i32val = (int32_t)strtol(newval, NULL, 0); 268 newval = &i32val; 269 newsize = sizeof(i32val); 270 break; 271 case CTLTYPE_S64: 272 i64val = strtoimax(newval, NULL, 0); 273 newval = &i64val; 274 newsize = sizeof(i64val); 275 break; 276 case CTLTYPE_U8: 277 u8val = (uint8_t)strtoul(newval, NULL, 0); 278 newval = &u8val; 279 newsize = sizeof(u8val); 280 break; 281 case CTLTYPE_U16: 282 u16val = (uint16_t)strtoul(newval, NULL, 0); 283 newval = &u16val; 284 newsize = sizeof(u16val); 285 break; 286 case CTLTYPE_U32: 287 u32val = (uint32_t)strtoul(newval, NULL, 0); 288 newval = &u32val; 289 newsize = sizeof(u32val); 290 break; 291 case CTLTYPE_U64: 292 u64val = strtoumax(newval, NULL, 0); 293 newval = &u64val; 294 newsize = sizeof(u64val); 295 break; 296 case CTLTYPE_OPAQUE: 297 if (strcmp(fmt, "T,dev_t") == 0 || 298 strcmp(fmt, "T,udev_t") == 0 299 ) { 300 set_T_dev_t((char*)newval, &newval, 301 &newsize); 302 break; 303 } 304 /* FALLTHROUGH */ 305 default: 306 errx(1, "oid '%s' is type %d," 307 " cannot set that", name, 308 kind & CTLTYPE); 309 } 310 311 i = show_var(mib, len); 312 if (sysctl(mib, len, 0, 0, newval, newsize) == -1) { 313 if (!i && !bflag) 314 putchar('\n'); 315 switch (errno) { 316 case EOPNOTSUPP: 317 errx(1, "%s: value is not available", 318 string); 319 case ENOTDIR: 320 errx(1, "%s: specification is incomplete", 321 string); 322 case ENOMEM: 323 errx(1, "%s: type is unknown to this program", 324 string); 325 default: 326 warn("%s", string); 327 return 1; 328 } 329 } 330 if (!bflag) 331 printf(" -> "); 332 i = nflag; 333 nflag = 1; 334 j = show_var(mib, len); 335 if (!j && !bflag) 336 putchar('\n'); 337 nflag = i; 338 } 339 340 if (name_allocated != NULL) 341 free(name_allocated); 342 343 return 0; 344 } 345 346 /* These functions will dump out various interesting structures. */ 347 348 static int 349 S_clockinfo(size_t l2, void *p) 350 { 351 struct clockinfo *ci = (struct clockinfo*)p; 352 if (l2 != sizeof(*ci)) 353 err(1, "S_clockinfo %zu != %zu", l2, sizeof(*ci)); 354 printf("{ hz = %d, tick = %d, tickadj = %d, profhz = %d, stathz = %d }", 355 ci->hz, ci->tick, ci->tickadj, ci->profhz, ci->stathz); 356 return (0); 357 } 358 359 static int 360 S_loadavg(size_t l2, void *p) 361 { 362 struct loadavg *tv = (struct loadavg*)p; 363 364 if (l2 != sizeof(*tv)) 365 err(1, "S_loadavg %zu != %zu", l2, sizeof(*tv)); 366 367 printf("{ %.2f %.2f %.2f }", 368 (double)tv->ldavg[0]/(double)tv->fscale, 369 (double)tv->ldavg[1]/(double)tv->fscale, 370 (double)tv->ldavg[2]/(double)tv->fscale); 371 return (0); 372 } 373 374 static int 375 S_timespec(size_t l2, void *p) 376 { 377 struct timespec *ts = (struct timespec*)p; 378 time_t tv_sec; 379 char *p1, *p2; 380 381 if (l2 != sizeof(*ts)) 382 err(1, "S_timespec %zu != %zu", l2, sizeof(*ts)); 383 printf("{ sec = %ld, nsec = %ld } ", 384 ts->tv_sec, ts->tv_nsec); 385 tv_sec = ts->tv_sec; 386 p1 = strdup(ctime(&tv_sec)); 387 for (p2=p1; *p2 ; p2++) 388 if (*p2 == '\n') 389 *p2 = '\0'; 390 fputs(p1, stdout); 391 return (0); 392 } 393 394 static int 395 S_timeval(size_t l2, void *p) 396 { 397 struct timeval *tv = (struct timeval*)p; 398 time_t tv_sec; 399 char *p1, *p2; 400 401 if (l2 != sizeof(*tv)) 402 err(1, "S_timeval %zu != %zu", l2, sizeof(*tv)); 403 printf("{ sec = %ld, usec = %ld } ", 404 tv->tv_sec, tv->tv_usec); 405 tv_sec = tv->tv_sec; 406 p1 = strdup(ctime(&tv_sec)); 407 for (p2=p1; *p2 ; p2++) 408 if (*p2 == '\n') 409 *p2 = '\0'; 410 fputs(p1, stdout); 411 return (0); 412 } 413 414 static int 415 S_sensor(size_t l2, void *p) 416 { 417 struct sensor *s = (struct sensor *)p; 418 419 if (l2 != sizeof(*s)) { 420 warnx("S_sensor %zu != %zu", l2, sizeof(*s)); 421 return (1); 422 } 423 424 if (s->flags & SENSOR_FINVALID) { 425 /* 426 * XXX: with this flag, the node should be entirely ignored, 427 * but as the magic-based sysctl(8) is not too flexible, we 428 * simply have to print out that the sensor is invalid. 429 */ 430 printf("invalid"); 431 return (0); 432 } 433 434 if (s->flags & SENSOR_FUNKNOWN) 435 printf("unknown"); 436 else { 437 switch (s->type) { 438 case SENSOR_TEMP: 439 printf("%.2f degC", 440 (s->value - 273150000) / 1000000.0); 441 break; 442 case SENSOR_FANRPM: 443 printf("%jd RPM", (intmax_t)s->value); 444 break; 445 case SENSOR_VOLTS_DC: 446 printf("%.2f VDC", s->value / 1000000.0); 447 break; 448 case SENSOR_WATTS: 449 printf("%.2f W", s->value / 1000000.0); 450 break; 451 case SENSOR_AMPS: 452 printf("%.2f A", s->value / 1000000.0); 453 break; 454 case SENSOR_WATTHOUR: 455 printf("%.2f Wh", s->value / 1000000.0); 456 break; 457 case SENSOR_AMPHOUR: 458 printf("%.2f Ah", s->value / 1000000.0); 459 break; 460 case SENSOR_INDICATOR: 461 printf("%s", s->value ? "On" : "Off"); 462 break; 463 case SENSOR_FREQ: 464 printf("%jd Hz", (intmax_t)s->value); 465 break; 466 case SENSOR_ECC: 467 case SENSOR_INTEGER: 468 printf("%jd", (intmax_t)s->value); 469 break; 470 case SENSOR_PERCENT: 471 printf("%.2f%%", s->value / 1000.0); 472 break; 473 case SENSOR_LUX: 474 printf("%.2f lx", s->value / 1000000.0); 475 break; 476 case SENSOR_DRIVE: 477 { 478 const char *name; 479 480 switch (s->value) { 481 case SENSOR_DRIVE_EMPTY: 482 name = "empty"; 483 break; 484 case SENSOR_DRIVE_READY: 485 name = "ready"; 486 break; 487 case SENSOR_DRIVE_POWERUP: 488 name = "powering up"; 489 break; 490 case SENSOR_DRIVE_ONLINE: 491 name = "online"; 492 break; 493 case SENSOR_DRIVE_IDLE: 494 name = "idle"; 495 break; 496 case SENSOR_DRIVE_ACTIVE: 497 name = "active"; 498 break; 499 case SENSOR_DRIVE_REBUILD: 500 name = "rebuilding"; 501 break; 502 case SENSOR_DRIVE_POWERDOWN: 503 name = "powering down"; 504 break; 505 case SENSOR_DRIVE_FAIL: 506 name = "failed"; 507 break; 508 case SENSOR_DRIVE_PFAIL: 509 name = "degraded"; 510 break; 511 default: 512 name = "unknown"; 513 break; 514 } 515 printf("%s", name); 516 break; 517 } 518 case SENSOR_TIMEDELTA: 519 printf("%.6f secs", s->value / 1000000000.0); 520 break; 521 default: 522 printf("unknown"); 523 } 524 } 525 526 if (s->desc[0] != '\0') 527 printf(" (%s)", s->desc); 528 529 switch (s->status) { 530 case SENSOR_S_UNSPEC: 531 break; 532 case SENSOR_S_OK: 533 printf(", OK"); 534 break; 535 case SENSOR_S_WARN: 536 printf(", WARNING"); 537 break; 538 case SENSOR_S_CRIT: 539 printf(", CRITICAL"); 540 break; 541 case SENSOR_S_UNKNOWN: 542 printf(", UNKNOWN"); 543 break; 544 } 545 546 if (s->tv.tv_sec) { 547 time_t t = s->tv.tv_sec; 548 char ct[26]; 549 550 ctime_r(&t, ct); 551 ct[19] = '\0'; 552 printf(", %s.%03ld", ct, s->tv.tv_usec / 1000); 553 } 554 555 return (0); 556 } 557 558 #ifdef __x86_64__ 559 static int 560 S_efi_map(size_t l2, void *p) 561 { 562 struct efi_map_header *efihdr; 563 struct efi_md *map; 564 const char *type; 565 size_t efisz; 566 int ndesc, i; 567 568 static const char *types[] = { 569 "Reserved", 570 "LoaderCode", 571 "LoaderData", 572 "BootServicesCode", 573 "BootServicesData", 574 "RuntimeServicesCode", 575 "RuntimeServicesData", 576 "ConventionalMemory", 577 "UnusableMemory", 578 "ACPIReclaimMemory", 579 "ACPIMemoryNVS", 580 "MemoryMappedIO", 581 "MemoryMappedIOPortSpace", 582 "PalCode" 583 }; 584 585 /* 586 * Memory map data provided by UEFI via the GetMemoryMap 587 * Boot Services API. 588 */ 589 if (l2 < sizeof(*efihdr)) { 590 warnx("S_efi_map length less than header"); 591 return (1); 592 } 593 efihdr = p; 594 efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf; 595 map = (struct efi_md *)((uint8_t *)efihdr + efisz); 596 597 if (efihdr->descriptor_size == 0) 598 return (0); 599 if (l2 != efisz + efihdr->memory_size) { 600 warnx("S_efi_map length mismatch %zu vs %zu", l2, efisz + 601 efihdr->memory_size); 602 return (1); 603 } 604 ndesc = efihdr->memory_size / efihdr->descriptor_size; 605 606 printf("\n%23s %12s %12s %8s %4s", 607 "Type", "Physical", "Virtual", "#Pages", "Attr"); 608 609 for (i = 0; i < ndesc; i++, 610 map = efi_next_descriptor(map, efihdr->descriptor_size)) { 611 if (map->md_type <= EFI_MD_TYPE_PALCODE) 612 type = types[map->md_type]; 613 else 614 type = "<INVALID>"; 615 printf("\n%23s %012lx %12p %08lx ", type, map->md_phys, 616 map->md_virt, map->md_pages); 617 if (map->md_attr & EFI_MD_ATTR_UC) 618 printf("UC "); 619 if (map->md_attr & EFI_MD_ATTR_WC) 620 printf("WC "); 621 if (map->md_attr & EFI_MD_ATTR_WT) 622 printf("WT "); 623 if (map->md_attr & EFI_MD_ATTR_WB) 624 printf("WB "); 625 if (map->md_attr & EFI_MD_ATTR_UCE) 626 printf("UCE "); 627 if (map->md_attr & EFI_MD_ATTR_WP) 628 printf("WP "); 629 if (map->md_attr & EFI_MD_ATTR_RP) 630 printf("RP "); 631 if (map->md_attr & EFI_MD_ATTR_XP) 632 printf("XP "); 633 if (map->md_attr & EFI_MD_ATTR_RT) 634 printf("RUNTIME"); 635 } 636 return (0); 637 } 638 #endif 639 640 static int 641 T_dev_t(size_t l2, void *p) 642 { 643 dev_t *d = (dev_t *)p; 644 if (l2 != sizeof(*d)) 645 err(1, "T_dev_T %zu != %zu", l2, sizeof(*d)); 646 if ((int)(*d) != -1) { 647 if (minor(*d) > 255 || minor(*d) < 0) 648 printf("{ major = %d, minor = 0x%x }", 649 major(*d), minor(*d)); 650 else 651 printf("{ major = %d, minor = %d }", 652 major(*d), minor(*d)); 653 } 654 return (0); 655 } 656 657 static void 658 set_T_dev_t(const char *path, void **val, size_t *size) 659 { 660 static struct stat statb; 661 662 if (strcmp(path, "none") && strcmp(path, "off")) { 663 int rc = stat (path, &statb); 664 if (rc) { 665 err(1, "cannot stat %s", path); 666 } 667 668 if (!S_ISCHR(statb.st_mode)) { 669 errx(1, "must specify a device special file."); 670 } 671 } else { 672 statb.st_rdev = NODEV; 673 } 674 *val = (char*) &statb.st_rdev; 675 *size = sizeof statb.st_rdev; 676 } 677 678 static int 679 set_IK(const char *str, int *val) 680 { 681 float temp; 682 int len, kelv; 683 const char *p; 684 char *endptr; 685 686 if ((len = strlen(str)) == 0) 687 return (0); 688 p = &str[len - 1]; 689 if (*p == 'C' || *p == 'F') { 690 temp = strtof(str, &endptr); 691 if (endptr == str || endptr != p) 692 return 0; 693 if (*p == 'F') 694 temp = (temp - 32) * 5 / 9; 695 kelv = temp * 10 + 2732; 696 } else { 697 /* 698 * I would like to just use, 0 but it would make numbers 699 * like '023' which were interpreted as decimal before 700 * suddenly interpreted as octal. 701 */ 702 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 703 kelv = (int)strtol(str, &endptr, 0); 704 else 705 kelv = (int)strtol(str, &endptr, 10); 706 if (endptr == str || *endptr != '\0') 707 return 0; 708 } 709 *val = kelv; 710 return 1; 711 } 712 713 /* 714 * These functions uses a presently undocumented interface to the kernel 715 * to walk the tree and get the type so it can print the value. 716 * This interface is under work and consideration, and should probably 717 * be killed with a big axe by the first person who can find the time. 718 * (be aware though, that the proper interface isn't as obvious as it 719 * may seem, there are various conflicting requirements. 720 */ 721 722 static int 723 oidfmt(int *oid, size_t len, char *fmt, u_int *kind) 724 { 725 int qoid[CTL_MAXNAME+2]; 726 u_char buf[BUFSIZ]; 727 int i; 728 size_t j; 729 730 qoid[0] = 0; 731 qoid[1] = 4; 732 memcpy(qoid + 2, oid, len * sizeof(int)); 733 734 j = sizeof(buf); 735 i = sysctl(qoid, len + 2, buf, &j, 0, 0); 736 if (i) 737 err(1, "sysctl fmt %d %zu %d", i, j, errno); 738 739 if (kind) 740 *kind = *(u_int *)buf; 741 742 if (fmt) 743 strcpy(fmt, (char *)(buf + sizeof(u_int))); 744 return 0; 745 } 746 747 /* 748 * This formats and outputs the value of one variable 749 * 750 * Returns zero if anything was actually output. 751 * Returns one if didn't know what to do with this. 752 * Return minus one if we had errors. 753 */ 754 755 static int 756 show_var(int *oid, size_t nlen) 757 { 758 u_char buf[BUFSIZ], *val = NULL, *p, *nul; 759 char name[BUFSIZ], *fmt; 760 const char *sep, *spacer; 761 int qoid[CTL_MAXNAME+2]; 762 int i; 763 size_t j, len; 764 u_int kind; 765 int (*func)(size_t, void *); 766 int error = 0; 767 768 qoid[0] = 0; 769 memcpy(qoid + 2, oid, nlen * sizeof(int)); 770 771 qoid[1] = 1; 772 j = sizeof(name); 773 i = sysctl(qoid, nlen + 2, name, &j, 0, 0); 774 if (i || !j) 775 err(1, "sysctl name %d %zu %d", i, j, errno); 776 777 if (Nflag) { 778 printf("%s", name); 779 return (0); 780 } 781 782 if (eflag) 783 sep = "="; 784 else 785 sep = ": "; 786 787 if (dflag) { /* just print description */ 788 qoid[1] = 5; 789 j = sizeof(buf); 790 i = sysctl(qoid, nlen + 2, buf, &j, 0, 0); 791 if (!nflag) 792 printf("%s%s", name, sep); 793 printf("%s", buf); 794 return(0); 795 } 796 /* find an estimate of how much we need for this var */ 797 j = 0; 798 i = sysctl(oid, nlen, 0, &j, 0, 0); 799 j += j; /* we want to be sure :-) */ 800 801 val = malloc(j + 1); 802 if (val == NULL) 803 return (1); 804 805 len = j; 806 i = sysctl(oid, nlen, val, &len, 0, 0); 807 if (i || !len) { 808 error = 1; 809 goto done; 810 } 811 812 if (bflag) { 813 fwrite(val, 1, len, stdout); 814 goto done; 815 } 816 817 val[len] = '\0'; 818 fmt = buf; 819 oidfmt(oid, nlen, fmt, &kind); 820 p = val; 821 switch (*fmt) { 822 case 'A': 823 if (!nflag) 824 printf("%s%s", name, sep); 825 nul = memchr(p, '\0', len); 826 fwrite(p, nul == NULL ? (int)len : nul - p, 1, stdout); 827 return (0); 828 829 case 'C': 830 if (!nflag) 831 printf("%s%s", name, sep); 832 fmt++; 833 spacer = ""; 834 while (len >= sizeof(char)) { 835 if(*fmt == 'U') 836 printf("%s%hhu", spacer, *(unsigned char *)p); 837 else 838 printf("%s%hhd", spacer, *(char *)p); 839 spacer = " "; 840 len -= sizeof(char); 841 p += sizeof(char); 842 } 843 goto done; 844 845 case 'I': 846 if (!nflag) 847 printf("%s%s", name, sep); 848 fmt++; 849 spacer = ""; 850 while (len >= sizeof(int)) { 851 if(*fmt == 'U') 852 printf("%s%u", spacer, *(unsigned int *)p); 853 else if (*fmt == 'K' && *(int *)p >= 0) 854 printf("%s%.1fC", spacer, (*(int *)p - 2732) / 10.0); 855 else 856 printf("%s%d", spacer, *(int *)p); 857 spacer = " "; 858 len -= sizeof(int); 859 p += sizeof(int); 860 } 861 goto done; 862 863 case 'L': 864 if (!nflag) 865 printf("%s%s", name, sep); 866 fmt++; 867 spacer = ""; 868 while (len >= sizeof(long)) { 869 if(*fmt == 'U') 870 printf("%s%lu", spacer, *(unsigned long *)p); 871 else 872 printf("%s%ld", spacer, *(long *)p); 873 spacer = " "; 874 len -= sizeof(long); 875 p += sizeof(long); 876 } 877 goto done; 878 879 case 'P': 880 if (!nflag) 881 printf("%s%s", name, sep); 882 printf("%p", *(void **)p); 883 goto done; 884 885 case 'Q': 886 if (!nflag) 887 printf("%s%s", name, sep); 888 fmt++; 889 spacer = ""; 890 while (len >= sizeof(quad_t)) { 891 if(*fmt == 'U') { 892 printf("%s%ju", 893 spacer, (uintmax_t)*(u_quad_t *)p); 894 } else { 895 printf("%s%jd", 896 spacer, (intmax_t)*(quad_t *)p); 897 } 898 spacer = " "; 899 len -= sizeof(int64_t); 900 p += sizeof(int64_t); 901 } 902 goto done; 903 904 case 'T': 905 case 'S': 906 if (fmt[0] == 'S' && fmt[1] != ',') { 907 if (!nflag) 908 printf("%s%s", name, sep); 909 fmt++; 910 spacer = ""; 911 while (len >= sizeof(short)) { 912 if(*fmt == 'U') 913 printf("%s%hu", spacer, 914 *(unsigned short *)p); 915 else 916 printf("%s%hd", spacer, *(short *)p); 917 spacer = " "; 918 len -= sizeof(short); 919 p += sizeof(short); 920 } 921 goto done; 922 } 923 924 if (!oflag && !xflag) { 925 i = 0; 926 if (strcmp(fmt, "S,clockinfo") == 0) 927 func = S_clockinfo; 928 else if (strcmp(fmt, "S,timespec") == 0) 929 func = S_timespec; 930 else if (strcmp(fmt, "S,timeval") == 0) 931 func = S_timeval; 932 else if (strcmp(fmt, "S,loadavg") == 0) 933 func = S_loadavg; 934 else if (strcmp(fmt, "S,sensor") == 0) 935 func = S_sensor; 936 #ifdef __x86_64__ 937 else if (strcmp(fmt, "S,efi_map_header") == 0) 938 func = S_efi_map; 939 #endif 940 else if (strcmp(fmt, "T,dev_t") == 0) 941 func = T_dev_t; 942 else if (strcmp(fmt, "T,udev_t") == 0) 943 func = T_dev_t; 944 else 945 func = NULL; 946 if (func) { 947 if (!nflag) 948 printf("%s%s", name, sep); 949 error = (*func)(len, p); 950 goto done; 951 } 952 } 953 /* FALL THROUGH */ 954 default: 955 if (!oflag && !xflag) { 956 error = 1; 957 goto done; 958 } 959 if (!nflag) 960 printf("%s%s", name, sep); 961 printf("Format:%s Length:%zu Dump:0x", fmt, len); 962 while (len-- && (xflag || p < val + 16)) 963 printf("%02x", *p++); 964 if (!xflag && len > 16) 965 printf("..."); 966 goto done; 967 } 968 969 done: 970 if (val != NULL) 971 free(val); 972 return (error); 973 } 974 975 static int 976 sysctl_all(int *oid, size_t len) 977 { 978 int name1[22], name2[22]; 979 int retval; 980 size_t i, l1, l2; 981 982 name1[0] = 0; 983 name1[1] = 2; 984 l1 = 2; 985 if (len) { 986 memcpy(name1+2, oid, len * sizeof(int)); 987 l1 += len; 988 } else { 989 name1[2] = 1; 990 l1++; 991 } 992 for (;;) { 993 l2 = sizeof(name2); 994 retval = sysctl(name1, l1, name2, &l2, 0, 0); 995 if (retval < 0) { 996 if (errno == ENOENT) 997 return 0; 998 else 999 err(1, "sysctl(getnext) %d %zu", retval, l2); 1000 } 1001 1002 l2 /= sizeof(int); 1003 1004 if (l2 < len) 1005 return 0; 1006 1007 for (i = 0; i < len; i++) 1008 if (name2[i] != oid[i]) 1009 return 0; 1010 1011 retval = show_var(name2, l2); 1012 if (retval == 0 && !bflag) 1013 putchar('\n'); 1014 1015 memcpy(name1+2, name2, l2 * sizeof(int)); 1016 l1 = 2 + l2; 1017 } 1018 } 1019