sbin/sysctl/sysctl.c

   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 #include <machine/inttypes.h>
  42
  43 #include <ctype.h>
  44 #include <err.h>
  45 #include <errno.h>
  46 #include <stdio.h>
  47 #include <stdlib.h>
  48 #include <string.h>
  49 #include <unistd.h>
  50
  51 static int      aflag, bflag, dflag, eflag, Nflag, nflag, oflag, xflag;
  52
  53 static int      oidfmt(int *, size_t, char *, u_int *);
  54 static void     parse(const char *);
  55 static int      show_var(int *, size_t);
  56 static int      sysctl_all(int *, size_t);
  57 static void     set_T_dev_t(const char *, void **, size_t *);
  58 static int      set_IK(const char *, int *);
  59
  60 static void
  61 usage(void)
  62 {
  63
  64         fprintf(stderr, "%s\n%s\n",
  65             "usage: sysctl [-bdeNnox] variable[=value] ...",
  66             "       sysctl [-bdeNnox] -a");
  67         exit(1);
  68 }
  69
  70 int
  71 main(int argc, char **argv)
  72 {
  73         int ch;
  74         setbuf(stdout,0);
  75         setbuf(stderr,0);
  76
  77         while ((ch = getopt(argc, argv, "AabdeNnowxX")) != -1) {
  78                 switch (ch) {
  79                 case 'A':
  80                         /* compatibility */
  81                         aflag = oflag = 1;
  82                         break;
  83                 case 'a':
  84                         aflag = 1;
  85                         break;
  86                 case 'b':
  87                         bflag = 1;
  88                         break;
  89                 case 'd':
  90                         dflag = 1;
  91                         break;
  92                 case 'e':
  93                         eflag = 1;
  94                         break;
  95                 case 'N':
  96                         Nflag = 1;
  97                         break;
  98                 case 'n':
  99                         nflag = 1;
 100                         break;
 101                 case 'o':
 102                         oflag = 1;
 103                         break;
 104                 case 'w':
 105                         /* compatibility */
 106                         /* ignored */
 107                         break;
 108                 case 'X':
 109                         /* compatibility */
 110                         aflag = xflag = 1;
 111                         break;
 112                 case 'x':
 113                         xflag = 1;
 114                         break;
 115                 default:
 116                         usage();
 117                 }
 118         }
 119         argc -= optind;
 120         argv += optind;
 121
 122         if (Nflag && nflag)
 123                 usage();
 124         if (aflag && argc == 0)
 125                 exit(sysctl_all(0, 0));
 126         if (argc == 0)
 127                 usage();
 128         while (argc-- > 0)
 129                 parse(*argv++);
 130         exit(0);
 131 }
 132
 133 /*
 134  * Parse a name into a MIB entry.
 135  * Lookup and print out the MIB entry if it exists.
 136  * Set a new value if requested.
 137  */
 138 static void
 139 parse(const char *string)
 140 {
 141         size_t len;
 142         int i, j;
 143         void *newval = NULL;
 144         int intval;
 145         unsigned int uintval;
 146         long longval;
 147         unsigned long ulongval;
 148         size_t newsize = 0;
 149         quad_t quadval;
 150         u_quad_t uquadval;
 151         int mib[CTL_MAXNAME];
 152         char *cp, fmt[BUFSIZ];
 153         const char *name;
 154         char *name_allocated = NULL;
 155         u_int kind;
 156
 157         if ((cp = strchr(string, '=')) != NULL) {
 158                 if ((name_allocated = malloc(cp - string + 1)) == NULL)
 159                         err(1, "malloc failed");
 160                 strlcpy(name_allocated, string, cp - string + 1);
 161                 name = name_allocated;
 162
 163                 while (isspace(*++cp))
 164                         ;
 165
 166                 newval = cp;
 167                 newsize = strlen(cp);
 168         } else {
 169                 name = string;
 170         }
 171
 172         len = CTL_MAXNAME;
 173         if (sysctlnametomib(name, mib, &len) < 0) {
 174                 if (errno == ENOENT) {
 175                         errx(1, "unknown oid '%s'", name);
 176                 } else {
 177                         err(1, "sysctlnametomib(\"%s\")", name);
 178                 }
 179         }
 180
 181         if (oidfmt(mib, len, fmt, &kind))
 182                 err(1, "couldn't find format of oid '%s'", name);
 183
 184         if (newval == NULL) {
 185                 if ((kind & CTLTYPE) == CTLTYPE_NODE) {
 186                         sysctl_all(mib, len);
 187                 } else {
 188                         i = show_var(mib, len);
 189                         if (!i && !bflag)
 190                                 putchar('\n');
 191                 }
 192         } else {
 193                 if ((kind & CTLTYPE) == CTLTYPE_NODE)
 194                         errx(1, "oid '%s' isn't a leaf node", name);
 195
 196                 if (!(kind&CTLFLAG_WR))
 197                         errx(1, "oid '%s' is read only", name);
 198
 199                 switch (kind & CTLTYPE) {
 200                         case CTLTYPE_INT:
 201                                 if (!(strcmp(fmt, "IK") == 0)) {
 202                                         if (!set_IK(newval, &intval))
 203                                                 errx(1, "invalid value '%s'",
 204                                                     (char *)newval);
 205                                 } else
 206                                         intval = (int) strtol(newval, NULL, 0);
 207                                 newval = &intval;
 208                                 newsize = sizeof(intval);
 209                                 break;
 210                         case CTLTYPE_UINT:
 211                                 uintval = (int) strtoul(newval, NULL, 0);
 212                                 newval = &uintval;
 213                                 newsize = sizeof uintval;
 214                                 break;
 215                         case CTLTYPE_LONG:
 216                                 longval = strtol(newval, NULL, 0);
 217                                 newval = &longval;
 218                                 newsize = sizeof longval;
 219                                 break;
 220                         case CTLTYPE_ULONG:
 221                                 ulongval = strtoul(newval, NULL, 0);
 222                                 newval = &ulongval;
 223                                 newsize = sizeof ulongval;
 224                                 break;
 225                         case CTLTYPE_STRING:
 226                                 break;
 227                         case CTLTYPE_QUAD:
 228                                 quadval = strtoq(newval, NULL, 0);
 229                                 newval = &quadval;
 230                                 newsize = sizeof(quadval);
 231                                 break;
 232                         case CTLTYPE_UQUAD:
 233                                 uquadval = strtouq(newval, NULL, 0);
 234                                 newval = &uquadval;
 235                                 newsize = sizeof(uquadval);
 236                                 break;
 237                         case CTLTYPE_OPAQUE:
 238                                 if (strcmp(fmt, "T,dev_t") == 0 ||
 239                                     strcmp(fmt, "T,udev_t") == 0
 240                                 ) {
 241                                         set_T_dev_t((char*)newval, &newval,
 242                                                     &newsize);
 243                                         break;
 244                                 }
 245                                 /* FALLTHROUGH */
 246                         default:
 247                                 errx(1, "oid '%s' is type %d,"
 248                                         " cannot set that", name,
 249                                         kind & CTLTYPE);
 250                 }
 251
 252                 i = show_var(mib, len);
 253                 if (sysctl(mib, len, 0, 0, newval, newsize) == -1) {
 254                         if (!i && !bflag)
 255                                 putchar('\n');
 256                         switch (errno) {
 257                         case EOPNOTSUPP:
 258                                 errx(1, "%s: value is not available",
 259                                         string);
 260                         case ENOTDIR:
 261                                 errx(1, "%s: specification is incomplete",
 262                                         string);
 263                         case ENOMEM:
 264                                 errx(1, "%s: type is unknown to this program",
 265                                         string);
 266                         default:
 267                                 warn("%s", string);
 268                                 return;
 269                         }
 270                 }
 271                 if (!bflag)
 272                         printf(" -> ");
 273                 i = nflag;
 274                 nflag = 1;
 275                 j = show_var(mib, len);
 276                 if (!j && !bflag)
 277                         putchar('\n');
 278                 nflag = i;
 279         }
 280
 281         if (name_allocated != NULL)
 282                 free(name_allocated);
 283 }
 284
 285 /* These functions will dump out various interesting structures. */
 286
 287 static int
 288 S_clockinfo(int l2, void *p)
 289 {
 290         struct clockinfo *ci = (struct clockinfo*)p;
 291         if (l2 != sizeof(*ci))
 292                 err(1, "S_clockinfo %d != %zu", l2, sizeof(*ci));
 293         printf("{ hz = %d, tick = %d, tickadj = %d, profhz = %d, stathz = %d }",
 294                 ci->hz, ci->tick, ci->tickadj, ci->profhz, ci->stathz);
 295         return (0);
 296 }
 297
 298 static int
 299 S_loadavg(int l2, void *p)
 300 {
 301         struct loadavg *tv = (struct loadavg*)p;
 302
 303         if (l2 != sizeof(*tv))
 304                 err(1, "S_loadavg %d != %zu", l2, sizeof(*tv));
 305
 306         printf("{ %.2f %.2f %.2f }",
 307                 (double)tv->ldavg[0]/(double)tv->fscale,
 308                 (double)tv->ldavg[1]/(double)tv->fscale,
 309                 (double)tv->ldavg[2]/(double)tv->fscale);
 310         return (0);
 311 }
 312
 313 static int
 314 S_timespec(int l2, void *p)
 315 {
 316         struct timespec *ts = (struct timespec*)p;
 317         time_t tv_sec;
 318         char *p1, *p2;
 319
 320         if (l2 != sizeof(*ts))
 321                 err(1, "S_timespec %d != %zu", l2, sizeof(*ts));
 322         printf("{ sec = %ld, nsec = %ld } ",
 323                 ts->tv_sec, ts->tv_nsec);
 324         tv_sec = ts->tv_sec;
 325         p1 = strdup(ctime(&tv_sec));
 326         for (p2=p1; *p2 ; p2++)
 327                 if (*p2 == '\n')
 328                         *p2 = '\0';
 329         fputs(p1, stdout);
 330         return (0);
 331 }
 332
 333 static int
 334 S_timeval(int l2, void *p)
 335 {
 336         struct timeval *tv = (struct timeval*)p;
 337         time_t tv_sec;
 338         char *p1, *p2;
 339
 340         if (l2 != sizeof(*tv))
 341                 err(1, "S_timeval %d != %zu", l2, sizeof(*tv));
 342         printf("{ sec = %ld, usec = %ld } ",
 343                 tv->tv_sec, tv->tv_usec);
 344         tv_sec = tv->tv_sec;
 345         p1 = strdup(ctime(&tv_sec));
 346         for (p2=p1; *p2 ; p2++)
 347                 if (*p2 == '\n')
 348                         *p2 = '\0';
 349         fputs(p1, stdout);
 350         return (0);
 351 }
 352
 353 static int
 354 S_sensor(int l2, void *p)
 355 {
 356         struct sensor *s = (struct sensor *)p;
 357
 358         if (l2 != sizeof(*s)) {
 359                 warnx("S_sensor %d != %zu", l2, sizeof(*s));
 360                 return (1);
 361         }
 362
 363         if (s->flags & SENSOR_FINVALID) {
 364                 /*
 365                  * XXX: with this flag, the node should be entirely ignored,
 366                  * but as the magic-based sysctl(8) is not too flexible, we
 367                  * simply have to print out that the sensor is invalid.
 368                  */
 369                 printf("invalid");
 370                 return (0);
 371         }
 372
 373         if (s->flags & SENSOR_FUNKNOWN)
 374                 printf("unknown");
 375         else {
 376                 switch (s->type) {
 377                 case SENSOR_TEMP:
 378                         printf("%.2f degC",
 379                             (s->value - 273150000) / 1000000.0);
 380                         break;
 381                 case SENSOR_FANRPM:
 382                         printf("%jd RPM", (intmax_t)s->value);
 383                         break;
 384                 case SENSOR_VOLTS_DC:
 385                         printf("%.2f VDC", s->value / 1000000.0);
 386                         break;
 387                 case SENSOR_WATTS:
 388                         printf("%.2f W", 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_FREQ:
 403                         printf("%jd Hz", (intmax_t)s->value);
 404                         break;
 405                 case SENSOR_ECC:
 406                 case SENSOR_INTEGER:
 407                         printf("%jd", (intmax_t)s->value);
 408                         break;
 409                 case SENSOR_PERCENT:
 410                         printf("%.2f%%", s->value / 1000.0);
 411                         break;
 412                 case SENSOR_LUX:
 413                         printf("%.2f lx", s->value / 1000000.0);
 414                         break;
 415                 case SENSOR_DRIVE:
 416                 {
 417                         const char *name;
 418
 419                         switch (s->value) {
 420                         case SENSOR_DRIVE_EMPTY:
 421                                 name = "empty";
 422                                 break;
 423                         case SENSOR_DRIVE_READY:
 424                                 name = "ready";
 425                                 break;
 426                         case SENSOR_DRIVE_POWERUP:
 427                                 name = "powering up";
 428                                 break;
 429                         case SENSOR_DRIVE_ONLINE:
 430                                 name = "online";
 431                                 break;
 432                         case SENSOR_DRIVE_IDLE:
 433                                 name = "idle";
 434                                 break;
 435                         case SENSOR_DRIVE_ACTIVE:
 436                                 name = "active";
 437                                 break;
 438                         case SENSOR_DRIVE_REBUILD:
 439                                 name = "rebuilding";
 440                                 break;
 441                         case SENSOR_DRIVE_POWERDOWN:
 442                                 name = "powering down";
 443                                 break;
 444                         case SENSOR_DRIVE_FAIL:
 445                                 name = "failed";
 446                                 break;
 447                         case SENSOR_DRIVE_PFAIL:
 448                                 name = "degraded";
 449                                 break;
 450                         default:
 451                                 name = "unknown";
 452                                 break;
 453                         }
 454                         printf("%s", name);
 455                         break;
 456                 }
 457                 case SENSOR_TIMEDELTA:
 458                         printf("%.6f secs", s->value / 1000000000.0);
 459                         break;
 460                 default:
 461                         printf("unknown");
 462                 }
 463         }
 464
 465         if (s->desc[0] != '\0')
 466                 printf(" (%s)", s->desc);
 467
 468         switch (s->status) {
 469         case SENSOR_S_UNSPEC:
 470                 break;
 471         case SENSOR_S_OK:
 472                 printf(", OK");
 473                 break;
 474         case SENSOR_S_WARN:
 475                 printf(", WARNING");
 476                 break;
 477         case SENSOR_S_CRIT:
 478                 printf(", CRITICAL");
 479                 break;
 480         case SENSOR_S_UNKNOWN:
 481                 printf(", UNKNOWN");
 482                 break;
 483         }
 484
 485         if (s->tv.tv_sec) {
 486                 time_t t = s->tv.tv_sec;
 487                 char ct[26];
 488
 489                 ctime_r(&t, ct);
 490                 ct[19] = '\0';
 491                 printf(", %s.%03ld", ct, s->tv.tv_usec / 1000);
 492         }
 493
 494         return (0);
 495 }
 496
 497 static int
 498 T_dev_t(int l2, void *p)
 499 {
 500         dev_t *d = (dev_t *)p;
 501         if (l2 != sizeof(*d))
 502                 err(1, "T_dev_T %d != %zu", l2, sizeof(*d));
 503         if ((int)(*d) != -1) {
 504                 if (minor(*d) > 255 || minor(*d) < 0)
 505                         printf("{ major = %d, minor = 0x%x }",
 506                                 major(*d), minor(*d));
 507                 else
 508                         printf("{ major = %d, minor = %d }",
 509                                 major(*d), minor(*d));
 510         }
 511         return (0);
 512 }
 513
 514 static void
 515 set_T_dev_t(const char *path, void **val, size_t *size)
 516 {
 517         static struct stat statb;
 518
 519         if (strcmp(path, "none") && strcmp(path, "off")) {
 520                 int rc = stat (path, &statb);
 521                 if (rc) {
 522                         err(1, "cannot stat %s", path);
 523                 }
 524
 525                 if (!S_ISCHR(statb.st_mode)) {
 526                         errx(1, "must specify a device special file.");
 527                 }
 528         } else {
 529                 statb.st_rdev = NODEV;
 530         }
 531         *val = (char*) &statb.st_rdev;
 532         *size = sizeof statb.st_rdev;
 533 }
 534
 535 static int
 536 set_IK(const char *str, int *val)
 537 {
 538         float temp;
 539         int len, kelv;
 540         const char *p;
 541         char *endptr;
 542
 543         if ((len = strlen(str)) == 0)
 544                 return (0);
 545         p = &str[len - 1];
 546         if (*p == 'C' || *p == 'F') {
 547                 temp = strtof(str, &endptr);
 548                 if (endptr == str || endptr != p)
 549                         return 0;
 550                 if (*p == 'F')
 551                         temp = (temp - 32) * 5 / 9;
 552                 kelv = temp * 10 + 2732;
 553         } else {
 554                 /*
 555                  * I would like to just use, 0 but it would make numbers
 556                  * like '023' which were interpreted as decimal before
 557                  * suddenly interpreted as octal.
 558                  */
 559                 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
 560                         kelv = (int)strtol(str, &endptr, 0);
 561                 else
 562                         kelv = (int)strtol(str, &endptr, 10);
 563                 if (endptr == str || *endptr != '\0')
 564                         return 0;
 565         }
 566         *val = kelv;
 567         return 1;
 568 }
 569
 570 /*
 571  * These functions uses a presently undocumented interface to the kernel
 572  * to walk the tree and get the type so it can print the value.
 573  * This interface is under work and consideration, and should probably
 574  * be killed with a big axe by the first person who can find the time.
 575  * (be aware though, that the proper interface isn't as obvious as it
 576  * may seem, there are various conflicting requirements.
 577  */
 578
 579 static int
 580 oidfmt(int *oid, size_t len, char *fmt, u_int *kind)
 581 {
 582         int qoid[CTL_MAXNAME+2];
 583         u_char buf[BUFSIZ];
 584         int i;
 585         size_t j;
 586
 587         qoid[0] = 0;
 588         qoid[1] = 4;
 589         memcpy(qoid + 2, oid, len * sizeof(int));
 590
 591         j = sizeof(buf);
 592         i = sysctl(qoid, len + 2, buf, &j, 0, 0);
 593         if (i)
 594                 err(1, "sysctl fmt %d %zu %d", i, j, errno);
 595
 596         if (kind)
 597                 *kind = *(u_int *)buf;
 598
 599         if (fmt)
 600                 strcpy(fmt, (char *)(buf + sizeof(u_int)));
 601         return 0;
 602 }
 603
 604 /*
 605  * This formats and outputs the value of one variable
 606  *
 607  * Returns zero if anything was actually output.
 608  * Returns one if didn't know what to do with this.
 609  * Return minus one if we had errors.
 610  */
 611
 612 static int
 613 show_var(int *oid, size_t nlen)
 614 {
 615         u_char buf[BUFSIZ], *val = NULL, *p, *nul;
 616         char name[BUFSIZ], *fmt;
 617         const char *sep, *spacer;
 618         int qoid[CTL_MAXNAME+2];
 619         int i;
 620         size_t j, len;
 621         u_int kind;
 622         int (*func)(int, void *);
 623         int error = 0;
 624
 625         qoid[0] = 0;
 626         memcpy(qoid + 2, oid, nlen * sizeof(int));
 627
 628         qoid[1] = 1;
 629         j = sizeof(name);
 630         i = sysctl(qoid, nlen + 2, name, &j, 0, 0);
 631         if (i || !j)
 632                 err(1, "sysctl name %d %zu %d", i, j, errno);
 633
 634         if (Nflag) {
 635                 printf("%s", name);
 636                 return (0);
 637         }
 638
 639         if (eflag)
 640                 sep = "=";
 641         else
 642                 sep = ": ";
 643
 644         if (dflag) {    /* just print description */
 645                 qoid[1] = 5;
 646                 j = sizeof(buf);
 647                 i = sysctl(qoid, nlen + 2, buf, &j, 0, 0);
 648                 if (!nflag)
 649                         printf("%s%s", name, sep);
 650                 printf("%s", buf);
 651                 return(0);
 652         }
 653         /* find an estimate of how much we need for this var */
 654         j = 0;
 655         i = sysctl(oid, nlen, 0, &j, 0, 0);
 656         j += j; /* we want to be sure :-) */
 657
 658         val = malloc(j + 1);
 659         if (val == NULL)
 660                 return (1);
 661
 662         len = j;
 663         i = sysctl(oid, nlen, val, &len, 0, 0);
 664         if (i || !len) {
 665                 error = 1;
 666                 goto done;
 667         }
 668
 669         if (bflag) {
 670                 fwrite(val, 1, len, stdout);
 671                 goto done;
 672         }
 673
 674         val[len] = '\0';
 675         fmt = buf;
 676         oidfmt(oid, nlen, fmt, &kind);
 677         p = val;
 678         switch (*fmt) {
 679         case 'A':
 680                 if (!nflag)
 681                         printf("%s%s", name, sep);
 682                 nul = memchr(p, '\0', len);
 683                 fwrite(p, nul == NULL ? (int)len : nul - p, 1, stdout);
 684                 return (0);
 685
 686         case 'I':
 687                 if (!nflag)
 688                         printf("%s%s", name, sep);
 689                 fmt++;
 690                 spacer = "";
 691                 while (len >= sizeof(int)) {
 692                         if(*fmt == 'U')
 693                                 printf("%s%u", spacer, *(unsigned int *)p);
 694                         else if (*fmt == 'K' && *(int *)p >= 0)
 695                                 printf("%s%.1fC", spacer, (*(int *)p - 2732) / 10.0);
 696                         else
 697                                 printf("%s%d", spacer, *(int *)p);
 698                         spacer = " ";
 699                         len -= sizeof(int);
 700                         p += sizeof(int);
 701                 }
 702                 goto done;
 703
 704         case 'L':
 705                 if (!nflag)
 706                         printf("%s%s", name, sep);
 707                 fmt++;
 708                 spacer = "";
 709                 while (len >= sizeof(long)) {
 710                         if(*fmt == 'U')
 711                                 printf("%s%lu", spacer, *(unsigned long *)p);
 712                         else
 713                                 printf("%s%ld", spacer, *(long *)p);
 714                         spacer = " ";
 715                         len -= sizeof(long);
 716                         p += sizeof(long);
 717                 }
 718                 goto done;
 719
 720         case 'P':
 721                 if (!nflag)
 722                         printf("%s%s", name, sep);
 723                 printf("%p", *(void **)p);
 724                 goto done;
 725
 726         case 'Q':
 727                 if (!nflag)
 728                         printf("%s%s", name, sep);
 729                 fmt++;
 730                 spacer = "";
 731                 while (len >= sizeof(quad_t)) {
 732                         if(*fmt == 'U') {
 733                                 printf("%s%ju",
 734                                        spacer, (uintmax_t)*(u_quad_t *)p);
 735                         } else {
 736                                 printf("%s%jd",
 737                                        spacer, (intmax_t)*(quad_t *)p);
 738                         }
 739                         spacer = " ";
 740                         len -= sizeof(int64_t);
 741                         p += sizeof(int64_t);
 742                 }
 743                 goto done;
 744
 745         case 'T':
 746         case 'S':
 747                 if (!oflag && !xflag) {
 748                         i = 0;
 749                         if (strcmp(fmt, "S,clockinfo") == 0)
 750                                 func = S_clockinfo;
 751                         else if (strcmp(fmt, "S,timespec") == 0)
 752                                 func = S_timespec;
 753                         else if (strcmp(fmt, "S,timeval") == 0)
 754                                 func = S_timeval;
 755                         else if (strcmp(fmt, "S,loadavg") == 0)
 756                                 func = S_loadavg;
 757                         else if (strcmp(fmt, "S,sensor") == 0)
 758                                 func = S_sensor;
 759                         else if (strcmp(fmt, "T,dev_t") == 0)
 760                                 func = T_dev_t;
 761                         else if (strcmp(fmt, "T,udev_t") == 0)
 762                                 func = T_dev_t;
 763                         else
 764                                 func = NULL;
 765                         if (func) {
 766                                 if (!nflag)
 767                                         printf("%s%s", name, sep);
 768                                 error = (*func)(len, p);
 769                                 goto done;
 770                         }
 771                 }
 772                 /* FALL THROUGH */
 773         default:
 774                 if (!oflag && !xflag) {
 775                         error = 1;
 776                         goto done;
 777                 }
 778                 if (!nflag)
 779                         printf("%s%s", name, sep);
 780                 printf("Format:%s Length:%zu Dump:0x", fmt, len);
 781                 while (len-- && (xflag || p < val + 16))
 782                         printf("%02x", *p++);
 783                 if (!xflag && len > 16)
 784                         printf("...");
 785                 goto done;
 786         }
 787
 788 done:
 789         if (val != NULL)
 790                 free(val);
 791         return (error);
 792 }
 793
 794 static int
 795 sysctl_all(int *oid, size_t len)
 796 {
 797         int name1[22], name2[22];
 798         int retval;
 799         size_t i, l1, l2;
 800
 801         name1[0] = 0;
 802         name1[1] = 2;
 803         l1 = 2;
 804         if (len) {
 805                 memcpy(name1+2, oid, len * sizeof(int));
 806                 l1 += len;
 807         } else {
 808                 name1[2] = 1;
 809                 l1++;
 810         }
 811         for (;;) {
 812                 l2 = sizeof(name2);
 813                 retval = sysctl(name1, l1, name2, &l2, 0, 0);
 814                 if (retval < 0) {
 815                         if (errno == ENOENT)
 816                                 return 0;
 817                         else
 818                                 err(1, "sysctl(getnext) %d %zu", retval, l2);
 819                 }
 820
 821                 l2 /= sizeof(int);
 822
 823                 if (l2 < len)
 824                         return 0;
 825
 826                 for (i = 0; i < len; i++)
 827                         if (name2[i] != oid[i])
 828                                 return 0;
 829
 830                 retval = show_var(name2, l2);
 831                 if (retval == 0 && !bflag)
 832                         putchar('\n');
 833
 834                 memcpy(name1+2, name2, l2 * sizeof(int));
 835                 l1 = 2 + l2;
 836         }
 837 }