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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#) Copyright (c) 1993 The Regents of the University of California. All rights reserved. 34 * @(#)from: sysctl.c 8.1 (Berkeley) 6/6/93 35 * $FreeBSD: src/sbin/sysctl/sysctl.c,v 1.25.2.11 2003/05/01 22:48:08 trhodes Exp $ 36 * $DragonFly: src/sbin/sysctl/sysctl.c,v 1.16 2007/10/02 12:57:00 hasso Exp $ 37 */ 38 39 #ifdef __i386__ 40 #include <sys/diskslice.h> /* used for bootdev parsing */ 41 #include <sys/reboot.h> /* used for bootdev parsing */ 42 #endif 43 #include <sys/types.h> 44 #include <sys/stat.h> 45 #include <sys/sysctl.h> 46 #include <sys/resource.h> 47 #include <sys/sensors.h> 48 #include <sys/param.h> 49 50 #include <machine/inttypes.h> 51 52 #include <ctype.h> 53 #include <err.h> 54 #include <errno.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 #include <string.h> 58 #include <unistd.h> 59 60 static int aflag, bflag, dflag, eflag, Nflag, nflag, oflag, xflag; 61 62 static int oidfmt(int *, size_t, char *, u_int *); 63 static void parse(const char *); 64 static int show_var(int *, size_t); 65 static int sysctl_all(int *, size_t); 66 static void set_T_dev_t(const char *, void **, size_t *); 67 68 static void 69 usage(void) 70 { 71 72 fprintf(stderr, "%s\n%s\n", 73 "usage: sysctl [-bdeNnox] variable[=value] ...", 74 " sysctl [-bdeNnox] -a"); 75 exit(1); 76 } 77 78 int 79 main(int argc, char **argv) 80 { 81 int ch; 82 setbuf(stdout,0); 83 setbuf(stderr,0); 84 85 while ((ch = getopt(argc, argv, "AabdeNnowxX")) != -1) { 86 switch (ch) { 87 case 'A': 88 /* compatibility */ 89 aflag = oflag = 1; 90 break; 91 case 'a': 92 aflag = 1; 93 break; 94 case 'b': 95 bflag = 1; 96 break; 97 case 'd': 98 dflag = 1; 99 break; 100 case 'e': 101 eflag = 1; 102 break; 103 case 'N': 104 Nflag = 1; 105 break; 106 case 'n': 107 nflag = 1; 108 break; 109 case 'o': 110 oflag = 1; 111 break; 112 case 'w': 113 /* compatibility */ 114 /* ignored */ 115 break; 116 case 'X': 117 /* compatibility */ 118 aflag = xflag = 1; 119 break; 120 case 'x': 121 xflag = 1; 122 break; 123 default: 124 usage(); 125 } 126 } 127 argc -= optind; 128 argv += optind; 129 130 if (Nflag && nflag) 131 usage(); 132 if (aflag && argc == 0) 133 exit(sysctl_all(0, 0)); 134 if (argc == 0) 135 usage(); 136 while (argc-- > 0) 137 parse(*argv++); 138 exit(0); 139 } 140 141 /* 142 * Parse a name into a MIB entry. 143 * Lookup and print out the MIB entry if it exists. 144 * Set a new value if requested. 145 */ 146 static void 147 parse(const char *string) 148 { 149 size_t len; 150 int i, j; 151 void *newval = NULL; 152 int intval; 153 unsigned int uintval; 154 long longval; 155 unsigned long ulongval; 156 size_t newsize = 0; 157 quad_t quadval; 158 u_quad_t uquadval; 159 int mib[CTL_MAXNAME]; 160 char *cp, fmt[BUFSIZ]; 161 const char *name; 162 char *name_allocated = NULL; 163 u_int kind; 164 165 if ((cp = strchr(string, '=')) != NULL) { 166 if ((name_allocated = malloc(cp - string + 1)) == NULL) 167 err(1, "malloc failed"); 168 strlcpy(name_allocated, string, cp - string + 1); 169 name = name_allocated; 170 171 while (isspace(*++cp)) 172 ; 173 174 newval = cp; 175 newsize = strlen(cp); 176 } else { 177 name = string; 178 } 179 180 len = CTL_MAXNAME; 181 if (sysctlnametomib(name, mib, &len) < 0) { 182 if (errno == ENOENT) { 183 errx(1, "unknown oid '%s'", name); 184 } else { 185 err(1, "sysctlnametomib(\"%s\")", name); 186 } 187 } 188 189 if (oidfmt(mib, len, fmt, &kind)) 190 err(1, "couldn't find format of oid '%s'", name); 191 192 if (newval == NULL) { 193 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 194 sysctl_all(mib, len); 195 } else { 196 i = show_var(mib, len); 197 if (!i && !bflag) 198 putchar('\n'); 199 } 200 } else { 201 if ((kind & CTLTYPE) == CTLTYPE_NODE) 202 errx(1, "oid '%s' isn't a leaf node", name); 203 204 if (!(kind&CTLFLAG_WR)) 205 errx(1, "oid '%s' is read only", name); 206 207 switch (kind & CTLTYPE) { 208 case CTLTYPE_INT: 209 intval = (int) strtol(newval, NULL, 0); 210 newval = &intval; 211 newsize = sizeof(intval); 212 break; 213 case CTLTYPE_UINT: 214 uintval = (int) strtoul(newval, NULL, 0); 215 newval = &uintval; 216 newsize = sizeof uintval; 217 break; 218 case CTLTYPE_LONG: 219 longval = strtol(newval, NULL, 0); 220 newval = &longval; 221 newsize = sizeof longval; 222 break; 223 case CTLTYPE_ULONG: 224 ulongval = strtoul(newval, NULL, 0); 225 newval = &ulongval; 226 newsize = sizeof ulongval; 227 break; 228 case CTLTYPE_STRING: 229 break; 230 case CTLTYPE_QUAD: 231 quadval = strtoq(newval, NULL, 0); 232 newval = &quadval; 233 newsize = sizeof(quadval); 234 break; 235 case CTLTYPE_UQUAD: 236 uquadval = strtouq(newval, NULL, 0); 237 newval = &quadval; 238 newsize = sizeof(quadval); 239 break; 240 case CTLTYPE_OPAQUE: 241 if (strcmp(fmt, "T,dev_t") == 0 || 242 strcmp(fmt, "T,udev_t") == 0 243 ) { 244 set_T_dev_t((char*)newval, &newval, 245 &newsize); 246 break; 247 } 248 /* FALLTHROUGH */ 249 default: 250 errx(1, "oid '%s' is type %d," 251 " cannot set that", name, 252 kind & CTLTYPE); 253 } 254 255 i = show_var(mib, len); 256 if (sysctl(mib, len, 0, 0, newval, newsize) == -1) { 257 if (!i && !bflag) 258 putchar('\n'); 259 switch (errno) { 260 case EOPNOTSUPP: 261 errx(1, "%s: value is not available", 262 string); 263 case ENOTDIR: 264 errx(1, "%s: specification is incomplete", 265 string); 266 case ENOMEM: 267 errx(1, "%s: type is unknown to this program", 268 string); 269 default: 270 warn("%s", string); 271 return; 272 } 273 } 274 if (!bflag) 275 printf(" -> "); 276 i = nflag; 277 nflag = 1; 278 j = show_var(mib, len); 279 if (!j && !bflag) 280 putchar('\n'); 281 nflag = i; 282 } 283 284 if (name_allocated != NULL) 285 free(name_allocated); 286 } 287 288 /* These functions will dump out various interesting structures. */ 289 290 static int 291 S_clockinfo(int l2, void *p) 292 { 293 struct clockinfo *ci = (struct clockinfo*)p; 294 if (l2 != sizeof(*ci)) 295 err(1, "S_clockinfo %d != %d", l2, sizeof(*ci)); 296 printf("{ hz = %d, tick = %d, tickadj = %d, profhz = %d, stathz = %d }", 297 ci->hz, ci->tick, ci->tickadj, ci->profhz, ci->stathz); 298 return (0); 299 } 300 301 static int 302 S_loadavg(int l2, void *p) 303 { 304 struct loadavg *tv = (struct loadavg*)p; 305 306 if (l2 != sizeof(*tv)) 307 err(1, "S_loadavg %d != %d", l2, sizeof(*tv)); 308 309 printf("{ %.2f %.2f %.2f }", 310 (double)tv->ldavg[0]/(double)tv->fscale, 311 (double)tv->ldavg[1]/(double)tv->fscale, 312 (double)tv->ldavg[2]/(double)tv->fscale); 313 return (0); 314 } 315 316 static int 317 S_timespec(int l2, void *p) 318 { 319 struct timespec *ts = (struct timespec*)p; 320 time_t tv_sec; 321 char *p1, *p2; 322 323 if (l2 != sizeof(*ts)) 324 err(1, "S_timespec %d != %d", l2, sizeof(*ts)); 325 printf("{ sec = %ld, nsec = %ld } ", 326 ts->tv_sec, ts->tv_nsec); 327 tv_sec = ts->tv_sec; 328 p1 = strdup(ctime(&tv_sec)); 329 for (p2=p1; *p2 ; p2++) 330 if (*p2 == '\n') 331 *p2 = '\0'; 332 fputs(p1, stdout); 333 return (0); 334 } 335 336 static int 337 S_timeval(int l2, void *p) 338 { 339 struct timeval *tv = (struct timeval*)p; 340 time_t tv_sec; 341 char *p1, *p2; 342 343 if (l2 != sizeof(*tv)) 344 err(1, "S_timeval %d != %d", l2, sizeof(*tv)); 345 printf("{ sec = %ld, usec = %ld } ", 346 tv->tv_sec, tv->tv_usec); 347 tv_sec = tv->tv_sec; 348 p1 = strdup(ctime(&tv_sec)); 349 for (p2=p1; *p2 ; p2++) 350 if (*p2 == '\n') 351 *p2 = '\0'; 352 fputs(p1, stdout); 353 return (0); 354 } 355 356 static int 357 S_sensor(int l2, void *p) 358 { 359 struct sensor *s = (struct sensor *)p; 360 361 if (l2 != sizeof(*s)) { 362 warnx("S_sensor %d != %d", l2, sizeof(*s)); 363 return (1); 364 } 365 366 if (s->flags & SENSOR_FINVALID) { 367 /* 368 * XXX: with this flag, the node should be entirely ignored, 369 * but as the magic-based sysctl(8) is not too flexible, we 370 * simply have to print out that the sensor is invalid. 371 */ 372 printf("invalid"); 373 return (0); 374 } 375 376 if (s->flags & SENSOR_FUNKNOWN) 377 printf("unknown"); 378 else { 379 switch (s->type) { 380 case SENSOR_TEMP: 381 printf("%.2f degC", 382 (s->value - 273150000) / 1000000.0); 383 break; 384 case SENSOR_FANRPM: 385 printf("%lld RPM", s->value); 386 break; 387 case SENSOR_VOLTS_DC: 388 printf("%.2f VDC", s->value / 1000000.0); 389 break; 390 case SENSOR_AMPS: 391 printf("%.2f A", s->value / 1000000.0); 392 break; 393 case SENSOR_WATTHOUR: 394 printf("%.2f Wh", s->value / 1000000.0); 395 break; 396 case SENSOR_AMPHOUR: 397 printf("%.2f Ah", s->value / 1000000.0); 398 break; 399 case SENSOR_INDICATOR: 400 printf("%s", s->value ? "On" : "Off"); 401 break; 402 case SENSOR_INTEGER: 403 printf("%lld", s->value); 404 break; 405 case SENSOR_PERCENT: 406 printf("%.2f%%", s->value / 1000.0); 407 break; 408 case SENSOR_LUX: 409 printf("%.2f lx", s->value / 1000000.0); 410 break; 411 case SENSOR_DRIVE: 412 { 413 const char *name; 414 415 switch (s->value) { 416 case SENSOR_DRIVE_EMPTY: 417 name = "empty"; 418 break; 419 case SENSOR_DRIVE_READY: 420 name = "ready"; 421 break; 422 case SENSOR_DRIVE_POWERUP: 423 name = "powering up"; 424 break; 425 case SENSOR_DRIVE_ONLINE: 426 name = "online"; 427 break; 428 case SENSOR_DRIVE_IDLE: 429 name = "idle"; 430 break; 431 case SENSOR_DRIVE_ACTIVE: 432 name = "active"; 433 break; 434 case SENSOR_DRIVE_REBUILD: 435 name = "rebuilding"; 436 break; 437 case SENSOR_DRIVE_POWERDOWN: 438 name = "powering down"; 439 break; 440 case SENSOR_DRIVE_FAIL: 441 name = "failed"; 442 break; 443 case SENSOR_DRIVE_PFAIL: 444 name = "degraded"; 445 break; 446 default: 447 name = "unknown"; 448 break; 449 } 450 printf(name); 451 break; 452 } 453 case SENSOR_TIMEDELTA: 454 printf("%.6f secs", s->value / 1000000000.0); 455 break; 456 default: 457 printf("unknown"); 458 } 459 } 460 461 if (s->desc[0] != '\0') 462 printf(" (%s)", s->desc); 463 464 switch (s->status) { 465 case SENSOR_S_UNSPEC: 466 break; 467 case SENSOR_S_OK: 468 printf(", OK"); 469 break; 470 case SENSOR_S_WARN: 471 printf(", WARNING"); 472 break; 473 case SENSOR_S_CRIT: 474 printf(", CRITICAL"); 475 break; 476 case SENSOR_S_UNKNOWN: 477 printf(", UNKNOWN"); 478 break; 479 } 480 481 if (s->tv.tv_sec) { 482 time_t t = s->tv.tv_sec; 483 char ct[26]; 484 485 ctime_r(&t, ct); 486 ct[19] = '\0'; 487 printf(", %s.%03ld", ct, s->tv.tv_usec / 1000); 488 } 489 490 return (0); 491 } 492 493 static int 494 T_dev_t(int l2, void *p) 495 { 496 dev_t *d = (dev_t *)p; 497 if (l2 != sizeof(*d)) 498 err(1, "T_dev_T %d != %d", l2, sizeof(*d)); 499 if ((int)(*d) != -1) { 500 if (minor(*d) > 255 || minor(*d) < 0) 501 printf("{ major = %d, minor = 0x%x }", 502 major(*d), minor(*d)); 503 else 504 printf("{ major = %d, minor = %d }", 505 major(*d), minor(*d)); 506 } 507 return (0); 508 } 509 510 static void 511 set_T_dev_t(const char *path, void **val, size_t *size) 512 { 513 static struct stat statb; 514 515 if (strcmp(path, "none") && strcmp(path, "off")) { 516 int rc = stat (path, &statb); 517 if (rc) { 518 err(1, "cannot stat %s", path); 519 } 520 521 if (!S_ISCHR(statb.st_mode)) { 522 errx(1, "must specify a device special file."); 523 } 524 } else { 525 statb.st_rdev = NODEV; 526 } 527 *val = (char*) &statb.st_rdev; 528 *size = sizeof statb.st_rdev; 529 } 530 531 /* 532 * These functions uses a presently undocumented interface to the kernel 533 * to walk the tree and get the type so it can print the value. 534 * This interface is under work and consideration, and should probably 535 * be killed with a big axe by the first person who can find the time. 536 * (be aware though, that the proper interface isn't as obvious as it 537 * may seem, there are various conflicting requirements. 538 */ 539 540 static int 541 oidfmt(int *oid, size_t len, char *fmt, u_int *kind) 542 { 543 int qoid[CTL_MAXNAME+2]; 544 u_char buf[BUFSIZ]; 545 int i; 546 size_t j; 547 548 qoid[0] = 0; 549 qoid[1] = 4; 550 memcpy(qoid + 2, oid, len * sizeof(int)); 551 552 j = sizeof(buf); 553 i = sysctl(qoid, len + 2, buf, &j, 0, 0); 554 if (i) 555 err(1, "sysctl fmt %d %d %d", i, j, errno); 556 557 if (kind) 558 *kind = *(u_int *)buf; 559 560 if (fmt) 561 strcpy(fmt, (char *)(buf + sizeof(u_int))); 562 return 0; 563 } 564 565 #ifdef __i386__ 566 /* 567 * Code to map a bootdev major number into a suitable device name. 568 * Major numbers are mapped into names as in boot2.c 569 */ 570 struct _foo { 571 int majdev; 572 const char *name; 573 } maj2name[] = { 574 { 30, "ad" }, 575 { 0, "wd" }, 576 { 1, "wfd" }, 577 { 2, "fd" }, 578 { 4, "da" }, 579 { -1, NULL } /* terminator */ 580 }; 581 582 static int 583 machdep_bootdev(u_long value) 584 { 585 int majdev, unit, slice, part; 586 struct _foo *p; 587 588 if ((value & B_MAGICMASK) != B_DEVMAGIC) { 589 printf("invalid (0x%08lx)", value); 590 return 0; 591 } 592 majdev = B_TYPE(value); 593 unit = B_UNIT(value); 594 slice = B_SLICE(value); 595 part = B_PARTITION(value); 596 if (majdev == 2) { /* floppy, as known to the boot block... */ 597 printf("/dev/fd%d", unit); 598 return 0; 599 } 600 for (p = maj2name; p->name != NULL && p->majdev != majdev ; p++) ; 601 if (p->name != NULL) { /* found */ 602 if (slice == WHOLE_DISK_SLICE) 603 printf("/dev/%s%d%c", p->name, unit, part); 604 else 605 printf("/dev/%s%ds%d%c", 606 p->name, unit, slice - BASE_SLICE + 1, part + 'a'); 607 } else 608 printf("unknown (major %d unit %d slice %d part %d)", 609 majdev, unit, slice, part); 610 return 0; 611 } 612 #endif 613 614 /* 615 * This formats and outputs the value of one variable 616 * 617 * Returns zero if anything was actually output. 618 * Returns one if didn't know what to do with this. 619 * Return minus one if we had errors. 620 */ 621 622 static int 623 show_var(int *oid, size_t nlen) 624 { 625 u_char buf[BUFSIZ], *val, *p, *nul; 626 char name[BUFSIZ], *fmt; 627 const char *sep, *spacer; 628 int qoid[CTL_MAXNAME+2]; 629 int i; 630 size_t j, len; 631 u_int kind; 632 int (*func)(int, void *); 633 634 qoid[0] = 0; 635 memcpy(qoid + 2, oid, nlen * sizeof(int)); 636 637 qoid[1] = 1; 638 j = sizeof(name); 639 i = sysctl(qoid, nlen + 2, name, &j, 0, 0); 640 if (i || !j) 641 err(1, "sysctl name %d %d %d", i, j, errno); 642 643 if (Nflag) { 644 printf("%s", name); 645 return (0); 646 } 647 648 if (eflag) 649 sep = "="; 650 else 651 sep = ": "; 652 653 if (dflag) { /* just print description */ 654 qoid[1] = 5; 655 j = sizeof(buf); 656 i = sysctl(qoid, nlen + 2, buf, &j, 0, 0); 657 if (!nflag) 658 printf("%s%s", name, sep); 659 printf("%s", buf); 660 return(0); 661 } 662 /* find an estimate of how much we need for this var */ 663 j = 0; 664 i = sysctl(oid, nlen, 0, &j, 0, 0); 665 j += j; /* we want to be sure :-) */ 666 667 val = alloca(j + 1); 668 len = j; 669 i = sysctl(oid, nlen, val, &len, 0, 0); 670 if (i || !len) 671 return (1); 672 673 if (bflag) { 674 fwrite(val, 1, len, stdout); 675 return (0); 676 } 677 678 val[len] = '\0'; 679 fmt = buf; 680 oidfmt(oid, nlen, fmt, &kind); 681 p = val; 682 switch (*fmt) { 683 case 'A': 684 if (!nflag) 685 printf("%s%s", name, sep); 686 nul = memchr(p, '\0', len); 687 fwrite(p, nul == NULL ? len : nul - p, 1, stdout); 688 return (0); 689 690 case 'I': 691 if (!nflag) 692 printf("%s%s", name, sep); 693 fmt++; 694 spacer = ""; 695 while (len >= sizeof(int)) { 696 if(*fmt == 'U') 697 printf("%s%u", spacer, *(unsigned int *)p); 698 else 699 printf("%s%d", spacer, *(int *)p); 700 spacer = " "; 701 len -= sizeof(int); 702 p += sizeof(int); 703 } 704 return (0); 705 706 case 'L': 707 if (!nflag) 708 printf("%s%s", name, sep); 709 fmt++; 710 #ifdef __i386__ 711 if (!strcmp(name, "machdep.guessed_bootdev")) 712 return machdep_bootdev(*(unsigned long *)p); 713 #endif 714 spacer = ""; 715 while (len >= sizeof(long)) { 716 if(*fmt == 'U') 717 printf("%s%lu", spacer, *(unsigned long *)p); 718 else 719 printf("%s%ld", spacer, *(long *)p); 720 spacer = " "; 721 len -= sizeof(long); 722 p += sizeof(long); 723 } 724 return (0); 725 726 case 'P': 727 if (!nflag) 728 printf("%s%s", name, sep); 729 printf("%p", *(void **)p); 730 return (0); 731 732 case 'Q': 733 if (!nflag) 734 printf("%s%s", name, sep); 735 fmt++; 736 spacer = ""; 737 while (len >= sizeof(quad_t)) { 738 if(*fmt == 'U') 739 printf("%s%qu", spacer, *(u_quad_t *)p); 740 else 741 printf("%s%qd", spacer, *(quad_t *)p); 742 spacer = " "; 743 len -= sizeof(int64_t); 744 p += sizeof(int64_t); 745 } 746 return (0); 747 748 case 'T': 749 case 'S': 750 if (!oflag && !xflag) { 751 i = 0; 752 if (strcmp(fmt, "S,clockinfo") == 0) 753 func = S_clockinfo; 754 else if (strcmp(fmt, "S,timespec") == 0) 755 func = S_timespec; 756 else if (strcmp(fmt, "S,timeval") == 0) 757 func = S_timeval; 758 else if (strcmp(fmt, "S,loadavg") == 0) 759 func = S_loadavg; 760 else if (strcmp(fmt, "S,sensor") == 0) 761 func = S_sensor; 762 else if (strcmp(fmt, "T,dev_t") == 0) 763 func = T_dev_t; 764 else if (strcmp(fmt, "T,udev_t") == 0) 765 func = T_dev_t; 766 else 767 func = NULL; 768 if (func) { 769 if (!nflag) 770 printf("%s%s", name, sep); 771 return ((*func)(len, p)); 772 } 773 } 774 /* FALL THROUGH */ 775 default: 776 if (!oflag && !xflag) 777 return (1); 778 if (!nflag) 779 printf("%s%s", name, sep); 780 printf("Format:%s Length:%d Dump:0x", fmt, len); 781 while (len-- && (xflag || p < val + 16)) 782 printf("%02x", *p++); 783 if (!xflag && len > 16) 784 printf("..."); 785 return (0); 786 } 787 return (1); 788 } 789 790 static int 791 sysctl_all(int *oid, size_t len) 792 { 793 int name1[22], name2[22]; 794 int retval; 795 size_t i, l1, l2; 796 797 name1[0] = 0; 798 name1[1] = 2; 799 l1 = 2; 800 if (len) { 801 memcpy(name1+2, oid, len * sizeof(int)); 802 l1 += len; 803 } else { 804 name1[2] = 1; 805 l1++; 806 } 807 for (;;) { 808 l2 = sizeof(name2); 809 retval = sysctl(name1, l1, name2, &l2, 0, 0); 810 if (retval < 0) { 811 if (errno == ENOENT) 812 return 0; 813 else 814 err(1, "sysctl(getnext) %d %d", retval, l2); 815 } 816 817 l2 /= sizeof(int); 818 819 if (l2 < len) 820 return 0; 821 822 for (i = 0; i < len; i++) 823 if (name2[i] != oid[i]) 824 return 0; 825 826 retval = show_var(name2, l2); 827 if (retval == 0 && !bflag) 828 putchar('\n'); 829 830 memcpy(name1+2, name2, l2 * sizeof(int)); 831 l1 = 2 + l2; 832 } 833 } 834