sysctl.c revision 1.96
1 /* $NetBSD: sysctl.c,v 1.96 2004/12/17 05:03:03 atatat Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of The NetBSD Foundation nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * Copyright (c) 1993 37 * The Regents of the University of California. All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 */ 63 64 #include <sys/cdefs.h> 65 #ifndef lint 66 __COPYRIGHT( 67 "@(#) Copyright (c) 1993\n\ 68 The Regents of the University of California. All rights reserved.\n"); 69 #endif /* not lint */ 70 71 #ifndef lint 72 #if 0 73 static char sccsid[] = "@(#)sysctl.c 8.1 (Berkeley) 6/6/93"; 74 #else 75 __RCSID("$NetBSD: sysctl.c,v 1.96 2004/12/17 05:03:03 atatat Exp $"); 76 #endif 77 #endif /* not lint */ 78 79 #include <sys/types.h> 80 #include <sys/param.h> 81 #include <sys/sysctl.h> 82 #include <sys/mount.h> 83 #include <sys/resource.h> 84 #include <sys/stat.h> 85 #include <sys/sched.h> 86 #include <sys/socket.h> 87 #include <netinet/in.h> 88 #include <netinet/ip_var.h> 89 #include <netinet/tcp.h> 90 #include <netinet/tcp_timer.h> 91 #include <netinet/tcp_var.h> 92 #include <netinet/icmp6.h> 93 #include <nfs/rpcv2.h> 94 #include <nfs/nfsproto.h> 95 #include <nfs/nfs.h> 96 #include <machine/cpu.h> 97 #include <netkey/key_var.h> 98 99 #include <assert.h> 100 #include <ctype.h> 101 #include <err.h> 102 #include <errno.h> 103 #include <inttypes.h> 104 #include <stdarg.h> 105 #include <stdio.h> 106 #include <stdlib.h> 107 #include <string.h> 108 #include <time.h> 109 #include <unistd.h> 110 111 /* 112 * this needs to be able to do the printing and the setting 113 */ 114 #define HANDLER_PROTO const char *, const char *, char *, \ 115 int *, u_int, const struct sysctlnode *, \ 116 u_int, void * 117 #define HANDLER_ARGS const char *sname, const char *dname, char *value, \ 118 int *name, u_int namelen, const struct sysctlnode *pnode, \ 119 u_int type, void *v 120 #define DISPLAY_VALUE 0 121 #define DISPLAY_OLD 1 122 #define DISPLAY_NEW 2 123 124 /* 125 * generic routines 126 */ 127 static const struct handlespec *findprinter(const int *, u_int); 128 static const struct handlespec *findwriter(const int *, u_int); 129 static void print_tree(int *, u_int, struct sysctlnode *, u_int, int); 130 static void write_number(int *, u_int, struct sysctlnode *, char *); 131 static void write_string(int *, u_int, struct sysctlnode *, char *); 132 static void display_number(const struct sysctlnode *, const char *, 133 const void *, size_t, int); 134 static void display_string(const struct sysctlnode *, const char *, 135 const void *, size_t, int); 136 static void display_struct(const struct sysctlnode *, const char *, 137 const void *, size_t, int); 138 static void hex_dump(const unsigned char *, size_t); 139 static void usage(void); 140 static void parse(char *); 141 static void parse_create(char *); 142 static void parse_destroy(char *); 143 static void parse_describe(char *); 144 static void getdesc1(int *, u_int, struct sysctlnode *); 145 static void getdesc(int *, u_int, struct sysctlnode *); 146 static void trim_whitespace(char *, int); 147 static void sysctlerror(int); 148 static void sysctlparseerror(u_int, const char *); 149 static void sysctlperror(const char *, ...); 150 #define EXIT(n) do { \ 151 if (fn == NULL) exit(n); else return; } while (/*CONSTCOND*/0) 152 153 /* 154 * "borrowed" from libc:sysctlgetmibinfo.c 155 */ 156 int __learn_tree(int *, u_int, struct sysctlnode *); 157 158 /* 159 * "handlers" 160 */ 161 static void printother(HANDLER_PROTO); 162 static void kern_clockrate(HANDLER_PROTO); 163 static void kern_boottime(HANDLER_PROTO); 164 static void kern_consdev(HANDLER_PROTO); 165 static void kern_cp_time(HANDLER_PROTO); 166 static void vm_loadavg(HANDLER_PROTO); 167 static void proc_limit(HANDLER_PROTO); 168 #ifdef CPU_DISKINFO 169 static void machdep_diskinfo(HANDLER_PROTO); 170 #endif /* CPU_DISKINFO */ 171 172 static const struct handlespec { 173 int ps_name[CTL_MAXNAME]; 174 void (*ps_p)(HANDLER_PROTO); 175 void (*ps_w)(HANDLER_PROTO); 176 void *ps_d; 177 } handlers[] = { 178 { { CTL_KERN, KERN_CLOCKRATE }, kern_clockrate }, 179 { { CTL_KERN, KERN_VNODE }, printother, NULL, "pstat" }, 180 { { CTL_KERN, KERN_PROC }, printother, NULL, "ps" }, 181 { { CTL_KERN, KERN_PROC2 }, printother, NULL, "ps" }, 182 { { CTL_KERN, KERN_PROC_ARGS }, printother, NULL, "ps" }, 183 { { CTL_KERN, KERN_FILE }, printother, NULL, "pstat" }, 184 { { CTL_KERN, KERN_NTPTIME }, printother, NULL, 185 "ntpdc -c kerninfo" }, 186 { { CTL_KERN, KERN_MSGBUF }, printother, NULL, "dmesg" }, 187 { { CTL_KERN, KERN_BOOTTIME }, kern_boottime }, 188 { { CTL_KERN, KERN_CONSDEV }, kern_consdev }, 189 { { CTL_KERN, KERN_CP_TIME, -1 }, kern_cp_time }, 190 { { CTL_KERN, KERN_CP_TIME }, kern_cp_time }, 191 { { CTL_KERN, KERN_SYSVIPC_INFO }, printother, NULL, "ipcs" }, 192 { { CTL_VM, VM_METER }, printother, NULL, 193 "vmstat' or 'systat" }, 194 { { CTL_VM, VM_LOADAVG }, vm_loadavg }, 195 { { CTL_VM, VM_UVMEXP }, printother, NULL, 196 "vmstat' or 'systat" }, 197 { { CTL_VM, VM_UVMEXP2 }, printother, NULL, 198 "vmstat' or 'systat" }, 199 { { CTL_VFS, 2 /* NFS */, NFS_NFSSTATS }, 200 printother, NULL, "nfsstat" }, 201 { { CTL_NET }, printother, NULL, NULL }, 202 { { CTL_NET, PF_LOCAL }, printother, NULL, NULL }, 203 { { CTL_NET, PF_INET, IPPROTO_TCP, TCPCTL_IDENT }, 204 printother, NULL, "identd" }, 205 { { CTL_NET, PF_INET6, IPPROTO_TCP, TCPCTL_IDENT }, 206 printother, NULL, "identd" }, 207 208 { { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_DRLIST }, 209 printother, NULL, "ndp" }, 210 { { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST }, 211 printother, NULL, "ndp" }, 212 213 214 { { CTL_NET, PF_KEY, KEYCTL_DUMPSA }, 215 printother, NULL, "setkey" }, 216 { { CTL_NET, PF_KEY, KEYCTL_DUMPSP }, 217 printother, NULL, "setkey" }, 218 /* { { CTL_DEBUG }, printother, NULL, NULL }, */ 219 { { CTL_HW, HW_DISKSTATS }, printother, NULL, "iostat" }, 220 #ifdef CPU_CONSDEV 221 { { CTL_MACHDEP, CPU_CONSDEV }, kern_consdev }, 222 #endif /* CPU_CONSDEV */ 223 #ifdef CPU_DISKINFO 224 { { CTL_MACHDEP, CPU_DISKINFO },machdep_diskinfo }, 225 #endif /* CPU_CONSDEV */ 226 { { CTL_DDB }, printother, NULL, NULL }, 227 { { CTL_PROC, -1, PROC_PID_LIMIT, -1, -1 }, proc_limit, proc_limit }, 228 { { CTL_UNSPEC }, }, 229 }; 230 231 struct sysctlnode my_root = { 232 #if defined(lint) 233 0 234 #else /* defined(lint) */ 235 .sysctl_flags = SYSCTL_VERSION|CTLFLAG_ROOT|CTLTYPE_NODE, 236 sysc_init_field(_sysctl_size, sizeof(struct sysctlnode)), 237 .sysctl_num = 0, 238 .sysctl_name = "(prog_root)", 239 #endif /* defined(lint) */ 240 }; 241 242 int Aflag, aflag, dflag, Mflag, nflag, qflag, rflag, wflag, xflag; 243 size_t nr; 244 char *fn; 245 int req; 246 FILE *warnfp = stderr; 247 248 /* 249 * vah-riables n stuff 250 */ 251 char gsname[SYSCTL_NAMELEN * CTL_MAXNAME + CTL_MAXNAME], 252 gdname[10 * CTL_MAXNAME + CTL_MAXNAME]; 253 char sep[2] = ".", *eq = " = "; 254 const char *lname[] = { 255 "top", "second", "third", "fourth", "fifth", "sixth", 256 "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth" 257 }; 258 259 /* 260 * you've heard of main, haven't you? 261 */ 262 int 263 main(int argc, char *argv[]) 264 { 265 int name[CTL_MAXNAME]; 266 int ch; 267 268 while ((ch = getopt(argc, argv, "Aabdef:Mnqrwx")) != -1) { 269 switch (ch) { 270 case 'A': 271 Aflag++; 272 break; 273 case 'a': 274 aflag++; 275 break; 276 case 'd': 277 dflag++; 278 break; 279 case 'e': 280 eq = "="; 281 break; 282 case 'f': 283 fn = optarg; 284 wflag++; 285 break; 286 case 'M': 287 Mflag++; 288 break; 289 case 'n': 290 nflag++; 291 break; 292 case 'q': 293 qflag++; 294 break; 295 case 'b': /* FreeBSD compat */ 296 case 'r': 297 rflag++; 298 break; 299 case 'w': 300 wflag++; 301 break; 302 case 'x': 303 xflag++; 304 break; 305 default: 306 usage(); 307 } 308 } 309 310 argc -= optind; 311 argv += optind; 312 313 if (qflag && !wflag) 314 usage(); 315 if (xflag && rflag) 316 usage(); 317 /* if ((xflag || rflag) && wflag) 318 usage(); */ 319 /* if (aflag && Mflag) 320 usage(); */ 321 if ((Aflag || Mflag || dflag) && argc == 0 && fn == NULL) 322 aflag = 1; 323 324 if (Aflag) 325 warnfp = stdout; 326 req = 0; 327 328 if (aflag) { 329 print_tree(&name[0], 0, NULL, CTLTYPE_NODE, 1); 330 /* if (argc == 0) */ 331 return (0); 332 } 333 334 if (fn) { 335 FILE *fp; 336 char *l; 337 338 fp = fopen(fn, "r"); 339 if (fp == NULL) { 340 err(1, "%s", fn); 341 } else { 342 nr = 0; 343 while ((l = fparseln(fp, NULL, &nr, NULL, 0)) != NULL) 344 { 345 if (*l) { 346 parse(l); 347 free(l); 348 } 349 } 350 fclose(fp); 351 } 352 return (0); 353 } 354 355 if (argc == 0) 356 usage(); 357 358 while (argc-- > 0) 359 parse(*argv++); 360 361 return (0); 362 } 363 364 /* 365 * ******************************************************************** 366 * how to find someone special to handle the reading (or maybe even 367 * writing) of a particular node 368 * ******************************************************************** 369 */ 370 static const struct handlespec * 371 findprinter(const int *name, u_int namelen) 372 { 373 const struct handlespec *p; 374 int i, j; 375 376 if (namelen < 1) 377 return (NULL); 378 379 p = &handlers[0]; 380 for (i = 0; p[i].ps_name[0] != CTL_UNSPEC; i++) { 381 for (j = 0; j < namelen; j++) 382 if (p[i].ps_name[j] != name[j] && 383 p[i].ps_name[j] != -1) 384 break; 385 if (j == namelen && p[i].ps_p != NULL) 386 return (&p[i]); 387 } 388 389 return (NULL); 390 } 391 392 static const struct handlespec * 393 findwriter(const int *name, u_int namelen) 394 { 395 const struct handlespec *p; 396 int i, j; 397 398 if (namelen < 1) 399 return (NULL); 400 401 p = &handlers[0]; 402 for (i = 0; p[i].ps_name[0] != CTL_UNSPEC; i++) { 403 for (j = 0; j < namelen; j++) 404 if (p[i].ps_name[j] != name[j] && 405 p[i].ps_name[j] != -1) 406 break; 407 if (j == namelen && p[i].ps_w != NULL) 408 return (&p[i]); 409 } 410 411 return (NULL); 412 } 413 414 /* 415 * ******************************************************************** 416 * convert this special number to a special string so we can print the 417 * mib 418 * ******************************************************************** 419 */ 420 static const char * 421 sf(u_int f) 422 { 423 static char s[256]; 424 char *c; 425 426 s[0] = '\0'; 427 c = ""; 428 429 #define print_flag(_f, _s, _c, _q, _x) \ 430 if (((_f) & (__CONCAT(CTLFLAG_,_x))) == (__CONCAT(CTLFLAG_,_q))) { \ 431 strlcat((_s), (_c), sizeof(_s)); \ 432 strlcat((_s), __STRING(_q), sizeof(_s)); \ 433 (_c) = ","; \ 434 (_f) &= ~(__CONCAT(CTLFLAG_,_x)); \ 435 } 436 print_flag(f, s, c, READONLY, READWRITE); 437 print_flag(f, s, c, READONLY1, READWRITE); 438 print_flag(f, s, c, READONLY2, READWRITE); 439 print_flag(f, s, c, READWRITE, READWRITE); 440 print_flag(f, s, c, ANYWRITE, ANYWRITE); 441 print_flag(f, s, c, PRIVATE, PRIVATE); 442 print_flag(f, s, c, PERMANENT, PERMANENT); 443 print_flag(f, s, c, OWNDATA, OWNDATA); 444 print_flag(f, s, c, IMMEDIATE, IMMEDIATE); 445 print_flag(f, s, c, HEX, HEX); 446 print_flag(f, s, c, ROOT, ROOT); 447 print_flag(f, s, c, ANYNUMBER, ANYNUMBER); 448 print_flag(f, s, c, HIDDEN, HIDDEN); 449 print_flag(f, s, c, ALIAS, ALIAS); 450 #undef print_flag 451 452 if (f) { 453 char foo[9]; 454 snprintf(foo, sizeof(foo), "%x", f); 455 strlcat(s, c, sizeof(s)); 456 strlcat(s, foo, sizeof(s)); 457 } 458 459 return (s); 460 } 461 462 static const char * 463 st(u_int t) 464 { 465 466 switch (t) { 467 case CTLTYPE_NODE: 468 return "NODE"; 469 case CTLTYPE_INT: 470 return "INT"; 471 case CTLTYPE_STRING: 472 return "STRING"; 473 case CTLTYPE_QUAD: 474 return "QUAD"; 475 case CTLTYPE_STRUCT: 476 return "STRUCT"; 477 } 478 479 return "???"; 480 } 481 482 /* 483 * ******************************************************************** 484 * print this node and any others underneath it 485 * ******************************************************************** 486 */ 487 static void 488 print_tree(int *name, u_int namelen, struct sysctlnode *pnode, u_int type, 489 int add) 490 { 491 struct sysctlnode *node; 492 int rc, ni; 493 size_t sz; 494 char *sp, *dp, n[20]; 495 const struct handlespec *p; 496 497 sp = &gsname[strlen(gsname)]; 498 dp = &gdname[strlen(gdname)]; 499 500 if (sp != &gsname[0] && dp == &gdname[0]) { 501 /* 502 * aw...shucks. now we must play catch up 503 */ 504 for (ni = 0; ni < namelen; ni++) { 505 (void)snprintf(n, sizeof(n), "%d", name[ni]); 506 if (ni > 0) 507 strncat(gdname, ".", sizeof(gdname)); 508 strncat(gdname, n, sizeof(gdname)); 509 } 510 } 511 512 if (pnode == NULL) 513 pnode = &my_root; 514 else if (add) { 515 snprintf(n, sizeof(n), "%d", pnode->sysctl_num); 516 if (namelen > 1) { 517 strncat(gsname, sep, sizeof(gsname)); 518 strncat(gdname, ".", sizeof(gdname)); 519 } 520 strncat(gsname, pnode->sysctl_name, sizeof(gsname)); 521 strncat(gdname, n, sizeof(gdname)); 522 } 523 524 if (Mflag && pnode != &my_root) { 525 if (nflag) 526 printf("%s: ", gdname); 527 else 528 printf("%s (%s): ", gsname, gdname); 529 printf("CTLTYPE_%s", st(type)); 530 if (type == CTLTYPE_NODE) { 531 if (SYSCTL_FLAGS(pnode->sysctl_flags) & CTLFLAG_ALIAS) 532 printf(", alias %d", 533 pnode->sysctl_alias); 534 else 535 printf(", children %d/%d", 536 pnode->sysctl_clen, 537 pnode->sysctl_csize); 538 } 539 printf(", size %zu", pnode->sysctl_size); 540 printf(", flags 0x%x<%s>", 541 SYSCTL_FLAGS(pnode->sysctl_flags), 542 sf(SYSCTL_FLAGS(pnode->sysctl_flags))); 543 if (pnode->sysctl_func) 544 printf(", func=%p", pnode->sysctl_func); 545 printf(", ver=%d", pnode->sysctl_ver); 546 printf("\n"); 547 if (type != CTLTYPE_NODE) { 548 *sp = *dp = '\0'; 549 return; 550 } 551 } 552 553 if (dflag && pnode != &my_root) { 554 if (Aflag || type != CTLTYPE_NODE) { 555 if (pnode->sysctl_desc == NULL) 556 getdesc1(name, namelen, pnode); 557 if (Aflag || !add || 558 (pnode->sysctl_desc != NULL && 559 pnode->sysctl_desc != (const char*)-1)) { 560 if (!nflag) 561 printf("%s: ", gsname); 562 if (pnode->sysctl_desc == NULL || 563 pnode->sysctl_desc == (const char*)-1) 564 printf("(no description)\n"); 565 else 566 printf("%s\n", pnode->sysctl_desc); 567 } 568 } 569 570 if (type != CTLTYPE_NODE) { 571 *sp = *dp = '\0'; 572 return; 573 } 574 } 575 576 /* 577 * if this is an alias and we added our name, that means we 578 * got here by recursing down into the tree, so skip it. The 579 * only way to print an aliased node is with either -M or by 580 * name specifically. 581 */ 582 if (SYSCTL_FLAGS(pnode->sysctl_flags) & CTLFLAG_ALIAS && add) { 583 *sp = *dp = '\0'; 584 return; 585 } 586 587 p = findprinter(name, namelen); 588 if (type != CTLTYPE_NODE && p != NULL) { 589 (*p->ps_p)(gsname, gdname, NULL, name, namelen, pnode, type, 590 p->ps_d); 591 *sp = *dp = '\0'; 592 return; 593 } 594 595 if (type != CTLTYPE_NODE && pnode->sysctl_size == 0) { 596 rc = sysctl(&name[0], namelen, NULL, &sz, NULL, 0); 597 if (rc == -1) { 598 sysctlerror(1); 599 *sp = *dp = '\0'; 600 return; 601 } 602 if (sz == 0) { 603 if ((Aflag || req) && !Mflag) 604 printf("%s: node contains no data\n", gsname); 605 *sp = *dp = '\0'; 606 return; 607 } 608 } 609 else 610 sz = pnode->sysctl_size; 611 612 switch (type) { 613 case CTLTYPE_NODE: { 614 __learn_tree(name, namelen, pnode); 615 node = pnode->sysctl_child; 616 if (node == NULL) { 617 if (dflag) 618 /* do nothing */; 619 else if (p != NULL) 620 (*p->ps_p)(gsname, gdname, NULL, name, namelen, 621 pnode, type, p->ps_d); 622 else if ((Aflag || req) && !Mflag) 623 printf("%s: no children\n", gsname); 624 } 625 else { 626 if (dflag) 627 /* 628 * get all descriptions for next level 629 * in one chunk 630 */ 631 getdesc(name, namelen, pnode); 632 req = 0; 633 for (ni = 0; ni < pnode->sysctl_clen; ni++) { 634 name[namelen] = node[ni].sysctl_num; 635 if ((node[ni].sysctl_flags & CTLFLAG_HIDDEN) && 636 !(Aflag || req)) 637 continue; 638 print_tree(name, namelen + 1, &node[ni], 639 SYSCTL_TYPE(node[ni].sysctl_flags), 640 1); 641 } 642 } 643 break; 644 } 645 case CTLTYPE_INT: { 646 int i; 647 rc = sysctl(name, namelen, &i, &sz, NULL, 0); 648 if (rc == -1) { 649 sysctlerror(1); 650 break; 651 } 652 display_number(pnode, gsname, &i, sizeof(i), DISPLAY_VALUE); 653 break; 654 } 655 case CTLTYPE_STRING: { 656 unsigned char buf[1024], *tbuf; 657 tbuf = buf; 658 sz = sizeof(buf); 659 rc = sysctl(&name[0], namelen, tbuf, &sz, NULL, 0); 660 if (rc == -1 && errno == ENOMEM) { 661 tbuf = malloc(sz); 662 if (tbuf == NULL) { 663 sysctlerror(1); 664 break; 665 } 666 rc = sysctl(&name[0], namelen, tbuf, &sz, NULL, 0); 667 } 668 if (rc == -1) 669 sysctlerror(1); 670 else 671 display_string(pnode, gsname, tbuf, sz, DISPLAY_VALUE); 672 if (tbuf != buf) 673 free(tbuf); 674 break; 675 } 676 case CTLTYPE_QUAD: { 677 u_quad_t q; 678 sz = sizeof(q); 679 rc = sysctl(&name[0], namelen, &q, &sz, NULL, 0); 680 if (rc == -1) { 681 sysctlerror(1); 682 break; 683 } 684 display_number(pnode, gsname, &q, sizeof(q), DISPLAY_VALUE); 685 break; 686 } 687 case CTLTYPE_STRUCT: { 688 /* 689 * we shouldn't actually get here, but if we 690 * do, would it be nice to have *something* to 691 * do other than completely ignore the 692 * request. 693 */ 694 unsigned char *d; 695 if ((d = malloc(sz)) == NULL) { 696 fprintf(warnfp, "%s: !malloc failed!\n", gsname); 697 break; 698 } 699 rc = sysctl(&name[0], namelen, d, &sz, NULL, 0); 700 if (rc == -1) { 701 sysctlerror(1); 702 break; 703 } 704 display_struct(pnode, gsname, d, sz, DISPLAY_VALUE); 705 free(d); 706 break; 707 } 708 default: 709 /* should i print an error here? */ 710 break; 711 } 712 713 *sp = *dp = '\0'; 714 } 715 716 /* 717 * ******************************************************************** 718 * parse a request, possibly determining that it's a create or destroy 719 * request 720 * ******************************************************************** 721 */ 722 static void 723 parse(char *l) 724 { 725 struct sysctlnode *node; 726 const struct handlespec *w; 727 int name[CTL_MAXNAME], dodesc = 0; 728 u_int namelen, type; 729 char *key, *value, *dot; 730 size_t sz; 731 732 req = 1; 733 key = l; 734 value = strchr(l, '='); 735 if (value != NULL) 736 *value++ = '\0'; 737 738 if ((dot = strpbrk(key, "./")) == NULL) 739 sep[0] = '.'; 740 else 741 sep[0] = dot[0]; 742 sep[1] = '\0'; 743 744 while (key[0] == sep[0] && key[1] == sep[0]) { 745 if (value != NULL) 746 value[-1] = '='; 747 if (strncmp(key + 2, "create", 6) == 0 && 748 (key[8] == '=' || key[8] == sep[0])) 749 parse_create(key + 8 + (key[8] == '=' ? 1 : 0)); 750 else if (strncmp(key + 2, "destroy", 7) == 0 && 751 (key[9] == '=' || key[9] == sep[0])) 752 parse_destroy(key + 9 + (key[9] == '=' ? 1 : 0)); 753 else if (strncmp(key + 2, "describe", 8) == 0 && 754 (key[10] == '=' || key[10] == sep[0])) { 755 key += 10 + (key[10] == '='); 756 if ((value = strchr(key, '=')) != NULL) 757 parse_describe(key); 758 else { 759 if (!dflag) 760 dodesc = 1; 761 break; 762 } 763 } 764 else 765 sysctlperror("unable to parse '%s'\n", key); 766 return; 767 } 768 769 node = &my_root; 770 namelen = CTL_MAXNAME; 771 sz = sizeof(gsname); 772 773 if (sysctlgetmibinfo(key, &name[0], &namelen, gsname, &sz, &node, 774 SYSCTL_VERSION) == -1) { 775 sysctlparseerror(namelen, l); 776 EXIT(1); 777 } 778 779 type = SYSCTL_TYPE(node->sysctl_flags); 780 781 if (value == NULL) { 782 if (dodesc) 783 dflag = 1; 784 print_tree(&name[0], namelen, node, type, 0); 785 if (dodesc) 786 dflag = 0; 787 gsname[0] = '\0'; 788 return; 789 } 790 791 if (fn) 792 trim_whitespace(value, 1); 793 794 if (!wflag) { 795 sysctlperror("Must specify -w to set variables\n"); 796 exit(1); 797 } 798 799 if (type != CTLTYPE_NODE && (w = findwriter(name, namelen)) != NULL) { 800 (*w->ps_w)(gsname, gdname, value, name, namelen, node, type, 801 w->ps_d); 802 gsname[0] = '\0'; 803 return; 804 } 805 806 switch (type) { 807 case CTLTYPE_NODE: 808 /* 809 * XXX old behavior is to print. should we error instead? 810 */ 811 print_tree(&name[0], namelen, node, CTLTYPE_NODE, 1); 812 break; 813 case CTLTYPE_INT: 814 write_number(&name[0], namelen, node, value); 815 break; 816 case CTLTYPE_STRING: 817 write_string(&name[0], namelen, node, value); 818 break; 819 case CTLTYPE_QUAD: 820 write_number(&name[0], namelen, node, value); 821 break; 822 case CTLTYPE_STRUCT: 823 /* 824 * XXX old behavior is to print. should we error instead? 825 */ 826 /* fprintf(warnfp, "you can't write to %s\n", gsname); */ 827 print_tree(&name[0], namelen, node, type, 0); 828 break; 829 } 830 } 831 832 /* 833 834 //create=foo.bar.whatever..., 835 [type=(int|quad|string|struct|node),] 836 [size=###,] 837 [n=###,] 838 [flags=(iohxparw12),] 839 [addr=0x####,|symbol=...|value=...] 840 841 size is optional for some types. type must be set before anything 842 else. nodes can have [r12whp], but nothing else applies. if no 843 size or type is given, node is asserted. writeable is the default, 844 with [r12w] being read-only, writeable below securelevel 1, 845 writeable below securelevel 2, and unconditionally writeable 846 respectively. if you specify addr, it is assumed to be the name of 847 a kernel symbol, if value, CTLFLAG_OWNDATA will be asserted for 848 strings, CTLFLAG_IMMEDIATE for ints and u_quad_ts. you cannot 849 specify both value and addr. 850 851 */ 852 853 static void 854 parse_create(char *l) 855 { 856 struct sysctlnode node; 857 size_t sz; 858 char *nname, *key, *value, *data, *addr, *c, *t; 859 int name[CTL_MAXNAME], i, rc, method, flags, rw; 860 u_int namelen, type; 861 u_quad_t uq; 862 quad_t q; 863 864 if (!wflag) { 865 sysctlperror("Must specify -w to create nodes\n"); 866 exit(1); 867 } 868 869 /* 870 * these are the pieces that make up the description of a new 871 * node 872 */ 873 memset(&node, 0, sizeof(node)); 874 node.sysctl_num = CTL_CREATE; /* any number is fine */ 875 flags = 0; 876 rw = -1; 877 type = 0; 878 sz = 0; 879 data = addr = NULL; 880 memset(name, 0, sizeof(name)); 881 namelen = 0; 882 method = 0; 883 884 /* 885 * misc stuff used when constructing 886 */ 887 i = 0; 888 uq = 0; 889 key = NULL; 890 value = NULL; 891 892 /* 893 * the name of the thing we're trying to create is first, so 894 * pick it off. 895 */ 896 nname = l; 897 if ((c = strchr(nname, ',')) != NULL) 898 *c++ = '\0'; 899 900 while (c != NULL) { 901 902 /* 903 * pull off the next "key=value" pair 904 */ 905 key = c; 906 if ((t = strchr(key, '=')) != NULL) { 907 *t++ = '\0'; 908 value = t; 909 } 910 else 911 value = NULL; 912 913 /* 914 * if the "key" is "value", then that eats the rest of 915 * the string, so we're done, otherwise bite it off at 916 * the next comma. 917 */ 918 if (strcmp(key, "value") == 0) { 919 c = NULL; 920 data = value; 921 break; 922 } 923 else { 924 if ((c = strchr(value, ',')) != NULL) 925 *c++ = '\0'; 926 } 927 928 /* 929 * note that we (mostly) let the invoker of sysctl(8) 930 * play rampant here and depend on the kernel to tell 931 * them that they were wrong. well...within reason. 932 * we later check the various parameters against each 933 * other to make sure it makes some sort of sense. 934 */ 935 if (strcmp(key, "addr") == 0) { 936 /* 937 * we can't check these two. only the kernel 938 * can tell us when it fails to find the name 939 * (or if the address is invalid). 940 */ 941 if (method != 0) { 942 sysctlperror( 943 "%s: already have %s for new node\n", 944 nname, 945 method == CTL_CREATE ? "addr" : "symbol"); 946 EXIT(1); 947 } 948 errno = 0; 949 addr = (void*)strtoul(value, &t, 0); 950 if (t == value || *t != '\0' || errno != 0) { 951 sysctlperror( 952 "%s: '%s' is not a valid address\n", 953 nname, value); 954 EXIT(1); 955 } 956 method = CTL_CREATE; 957 } 958 else if (strcmp(key, "symbol") == 0) { 959 if (method != 0) { 960 sysctlperror( 961 "%s: already have %s for new node\n", 962 nname, 963 method == CTL_CREATE ? "addr" : "symbol"); 964 EXIT(1); 965 } 966 addr = value; 967 method = CTL_CREATESYM; 968 } 969 else if (strcmp(key, "type") == 0) { 970 if (strcmp(value, "node") == 0) 971 type = CTLTYPE_NODE; 972 else if (strcmp(value, "int") == 0) { 973 sz = sizeof(int); 974 type = CTLTYPE_INT; 975 } 976 else if (strcmp(value, "string") == 0) 977 type = CTLTYPE_STRING; 978 else if (strcmp(value, "quad") == 0) { 979 sz = sizeof(u_quad_t); 980 type = CTLTYPE_QUAD; 981 } 982 else if (strcmp(value, "struct") == 0) 983 type = CTLTYPE_STRUCT; 984 else { 985 sysctlperror( 986 "%s: '%s' is not a valid type\n", 987 nname, value); 988 EXIT(1); 989 } 990 } 991 else if (strcmp(key, "size") == 0) { 992 errno = 0; 993 /* 994 * yes, i know size_t is not an unsigned long, 995 * but we can all agree that it ought to be, 996 * right? 997 */ 998 sz = strtoul(value, &t, 0); 999 if (t == value || *t != '\0' || errno != 0) { 1000 sysctlperror( 1001 "%s: '%s' is not a valid size\n", 1002 nname, value); 1003 EXIT(1); 1004 } 1005 } 1006 else if (strcmp(key, "n") == 0) { 1007 errno = 0; 1008 q = strtoq(value, &t, 0); 1009 if (t == value || *t != '\0' || errno != 0 || 1010 q < INT_MIN || q > UINT_MAX) { 1011 sysctlperror( 1012 "%s: '%s' is not a valid mib number\n", 1013 nname, value); 1014 EXIT(1); 1015 } 1016 node.sysctl_num = (int)q; 1017 } 1018 else if (strcmp(key, "flags") == 0) { 1019 t = value; 1020 while (*t != '\0') { 1021 switch (*t) { 1022 case 'a': 1023 flags |= CTLFLAG_ANYWRITE; 1024 break; 1025 case 'h': 1026 flags |= CTLFLAG_HIDDEN; 1027 break; 1028 case 'i': 1029 flags |= CTLFLAG_IMMEDIATE; 1030 break; 1031 case 'o': 1032 flags |= CTLFLAG_OWNDATA; 1033 break; 1034 case 'p': 1035 flags |= CTLFLAG_PRIVATE; 1036 break; 1037 case 'x': 1038 flags |= CTLFLAG_HEX; 1039 break; 1040 1041 case 'r': 1042 rw = CTLFLAG_READONLY; 1043 break; 1044 case '1': 1045 rw = CTLFLAG_READONLY1; 1046 break; 1047 case '2': 1048 rw = CTLFLAG_READONLY2; 1049 break; 1050 case 'w': 1051 rw = CTLFLAG_READWRITE; 1052 break; 1053 default: 1054 sysctlperror( 1055 "%s: '%c' is not a valid flag\n", 1056 nname, *t); 1057 EXIT(1); 1058 } 1059 t++; 1060 } 1061 } 1062 else { 1063 sysctlperror("%s: unrecognized keyword '%s'\n", 1064 nname, key); 1065 EXIT(1); 1066 } 1067 } 1068 1069 /* 1070 * now that we've finished parsing the given string, fill in 1071 * anything they didn't specify 1072 */ 1073 if (type == 0) 1074 type = CTLTYPE_NODE; 1075 1076 /* 1077 * the "data" can be interpreted various ways depending on the 1078 * type of node we're creating, as can the size 1079 */ 1080 if (data != NULL) { 1081 if (addr != NULL) { 1082 sysctlperror( 1083 "%s: cannot specify both value and " 1084 "address\n", nname); 1085 EXIT(1); 1086 } 1087 1088 switch (type) { 1089 case CTLTYPE_INT: 1090 errno = 0; 1091 q = strtoq(data, &t, 0); 1092 if (t == data || *t != '\0' || errno != 0 || 1093 q < INT_MIN || q > UINT_MAX) { 1094 sysctlperror( 1095 "%s: '%s' is not a valid integer\n", 1096 nname, value); 1097 EXIT(1); 1098 } 1099 i = (int)q; 1100 if (!(flags & CTLFLAG_OWNDATA)) { 1101 flags |= CTLFLAG_IMMEDIATE; 1102 node.sysctl_idata = i; 1103 } 1104 else 1105 node.sysctl_data = &i; 1106 if (sz == 0) 1107 sz = sizeof(int); 1108 break; 1109 case CTLTYPE_STRING: 1110 flags |= CTLFLAG_OWNDATA; 1111 node.sysctl_data = data; 1112 if (sz == 0) 1113 sz = strlen(data) + 1; 1114 else if (sz < strlen(data) + 1) { 1115 sysctlperror("%s: ignoring size=%zu for " 1116 "string node, too small for given " 1117 "value\n", nname, sz); 1118 sz = strlen(data) + 1; 1119 } 1120 break; 1121 case CTLTYPE_QUAD: 1122 errno = 0; 1123 uq = strtouq(data, &t, 0); 1124 if (t == data || *t != '\0' || errno != 0) { 1125 sysctlperror( 1126 "%s: '%s' is not a valid quad\n", 1127 nname, value); 1128 EXIT(1); 1129 } 1130 if (!(flags & CTLFLAG_OWNDATA)) { 1131 flags |= CTLFLAG_IMMEDIATE; 1132 node.sysctl_qdata = uq; 1133 } 1134 else 1135 node.sysctl_data = &uq; 1136 if (sz == 0) 1137 sz = sizeof(u_quad_t); 1138 break; 1139 case CTLTYPE_STRUCT: 1140 sysctlperror("%s: struct not initializable\n", 1141 nname); 1142 EXIT(1); 1143 } 1144 1145 /* 1146 * these methods have all provided local starting 1147 * values that the kernel must copy in 1148 */ 1149 } 1150 1151 /* 1152 * hmm...no data, but we have an address of data. that's 1153 * fine. 1154 */ 1155 else if (addr != 0) 1156 node.sysctl_data = (void*)addr; 1157 1158 /* 1159 * no data and no address? well...okay. we might be able to 1160 * manage that. 1161 */ 1162 else if (type != CTLTYPE_NODE) { 1163 if (sz == 0) { 1164 sysctlperror( 1165 "%s: need a size or a starting value\n", 1166 nname); 1167 EXIT(1); 1168 } 1169 if (!(flags & CTLFLAG_IMMEDIATE)) 1170 flags |= CTLFLAG_OWNDATA; 1171 } 1172 1173 /* 1174 * now we do a few sanity checks on the description we've 1175 * assembled 1176 */ 1177 if ((flags & CTLFLAG_IMMEDIATE) && 1178 (type == CTLTYPE_STRING || type == CTLTYPE_STRUCT)) { 1179 sysctlperror("%s: cannot make an immediate %s\n", 1180 nname, 1181 (type == CTLTYPE_STRING) ? "string" : "struct"); 1182 EXIT(1); 1183 } 1184 if (type == CTLTYPE_NODE && node.sysctl_data != NULL) { 1185 sysctlperror("%s: nodes do not have data\n", nname); 1186 EXIT(1); 1187 } 1188 1189 /* 1190 * some types must have a particular size 1191 */ 1192 if (sz != 0) { 1193 if ((type == CTLTYPE_INT && sz != sizeof(int)) || 1194 (type == CTLTYPE_QUAD && sz != sizeof(u_quad_t)) || 1195 (type == CTLTYPE_NODE && sz != 0)) { 1196 sysctlperror("%s: wrong size for type\n", nname); 1197 EXIT(1); 1198 } 1199 } 1200 else if (type == CTLTYPE_STRUCT) { 1201 sysctlperror("%s: struct must have size\n", nname); 1202 EXIT(1); 1203 } 1204 1205 /* 1206 * now...if no one said anything yet, we default nodes or 1207 * any type that owns data being writeable, and everything 1208 * else being readonly. 1209 */ 1210 if (rw == -1) { 1211 if (type == CTLTYPE_NODE || 1212 (flags & (CTLFLAG_OWNDATA|CTLFLAG_IMMEDIATE))) 1213 rw = CTLFLAG_READWRITE; 1214 else 1215 rw = CTLFLAG_READONLY; 1216 } 1217 1218 /* 1219 * if a kernel address was specified, that can't be made 1220 * writeable by us. 1221 if (rw != CTLFLAG_READONLY && addr) { 1222 sysctlperror("%s: kernel data can only be readable\n", nname); 1223 EXIT(1); 1224 } 1225 */ 1226 1227 /* 1228 * what separator were they using in the full name of the new 1229 * node? 1230 */ 1231 if ((t = strpbrk(nname, "./")) == NULL) 1232 sep[0] = '.'; 1233 else 1234 sep[0] = t[0]; 1235 sep[1] = '\0'; 1236 1237 /* 1238 * put it all together, now. t'ain't much, is it? 1239 */ 1240 node.sysctl_flags = SYSCTL_VERSION|flags|rw|type; 1241 node.sysctl_size = sz; 1242 t = strrchr(nname, sep[0]); 1243 if (t != NULL) 1244 strlcpy(node.sysctl_name, t + 1, sizeof(node.sysctl_name)); 1245 else 1246 strlcpy(node.sysctl_name, nname, sizeof(node.sysctl_name)); 1247 if (t == nname) 1248 t = NULL; 1249 1250 /* 1251 * if this is a new top-level node, then we don't need to find 1252 * the mib for its parent 1253 */ 1254 if (t == NULL) { 1255 namelen = 0; 1256 gsname[0] = '\0'; 1257 } 1258 1259 /* 1260 * on the other hand, if it's not a top-level node... 1261 */ 1262 else { 1263 namelen = sizeof(name) / sizeof(name[0]); 1264 sz = sizeof(gsname); 1265 *t = '\0'; 1266 rc = sysctlgetmibinfo(nname, &name[0], &namelen, 1267 gsname, &sz, NULL, SYSCTL_VERSION); 1268 *t = sep[0]; 1269 if (rc == -1) { 1270 sysctlparseerror(namelen, nname); 1271 EXIT(1); 1272 } 1273 } 1274 1275 /* 1276 * yes, a new node is being created 1277 */ 1278 if (method != 0) 1279 name[namelen++] = method; 1280 else 1281 name[namelen++] = CTL_CREATE; 1282 1283 sz = sizeof(node); 1284 rc = sysctl(&name[0], namelen, &node, &sz, &node, sizeof(node)); 1285 1286 if (rc == -1) { 1287 sysctlperror("%s: CTL_CREATE failed: %s\n", 1288 nname, strerror(errno)); 1289 EXIT(1); 1290 } 1291 else if (!qflag && !nflag) 1292 printf("%s(%s): (created)\n", nname, st(type)); 1293 } 1294 1295 static void 1296 parse_destroy(char *l) 1297 { 1298 struct sysctlnode node; 1299 size_t sz; 1300 int name[CTL_MAXNAME], rc; 1301 u_int namelen; 1302 1303 if (!wflag) { 1304 sysctlperror("Must specify -w to destroy nodes\n"); 1305 exit(1); 1306 } 1307 1308 memset(name, 0, sizeof(name)); 1309 namelen = sizeof(name) / sizeof(name[0]); 1310 sz = sizeof(gsname); 1311 rc = sysctlgetmibinfo(l, &name[0], &namelen, gsname, &sz, NULL, 1312 SYSCTL_VERSION); 1313 if (rc == -1) { 1314 sysctlparseerror(namelen, l); 1315 EXIT(1); 1316 } 1317 1318 memset(&node, 0, sizeof(node)); 1319 node.sysctl_flags = SYSCTL_VERSION; 1320 node.sysctl_num = name[namelen - 1]; 1321 name[namelen - 1] = CTL_DESTROY; 1322 1323 sz = sizeof(node); 1324 rc = sysctl(&name[0], namelen, &node, &sz, &node, sizeof(node)); 1325 1326 if (rc == -1) { 1327 sysctlperror("%s: CTL_DESTROY failed: %s\n", 1328 l, strerror(errno)); 1329 EXIT(1); 1330 } 1331 else if (!qflag && !nflag) 1332 printf("%s(%s): (destroyed)\n", gsname, 1333 st(SYSCTL_TYPE(node.sysctl_flags))); 1334 } 1335 1336 static void 1337 parse_describe(char *l) 1338 { 1339 struct sysctlnode newdesc; 1340 char buf[1024], *value; 1341 struct sysctldesc *d = (void*)&buf[0]; 1342 int name[CTL_MAXNAME], rc; 1343 u_int namelen; 1344 size_t sz; 1345 1346 if (!wflag) { 1347 sysctlperror("Must specify -w to set descriptions\n"); 1348 exit(1); 1349 } 1350 1351 value = strchr(l, '='); 1352 *value++ = '\0'; 1353 1354 memset(name, 0, sizeof(name)); 1355 namelen = sizeof(name) / sizeof(name[0]); 1356 sz = sizeof(gsname); 1357 rc = sysctlgetmibinfo(l, &name[0], &namelen, gsname, &sz, NULL, 1358 SYSCTL_VERSION); 1359 if (rc == -1) { 1360 sysctlparseerror(namelen, l); 1361 EXIT(1); 1362 } 1363 1364 sz = sizeof(buf); 1365 memset(&newdesc, 0, sizeof(newdesc)); 1366 newdesc.sysctl_flags = SYSCTL_VERSION|CTLFLAG_OWNDESC; 1367 newdesc.sysctl_num = name[namelen - 1]; 1368 newdesc.sysctl_desc = value; 1369 name[namelen - 1] = CTL_DESCRIBE; 1370 rc = sysctl(name, namelen, d, &sz, &newdesc, sizeof(newdesc)); 1371 if (rc == -1) 1372 sysctlperror("%s: CTL_DESCRIBE failed: %s\n", 1373 gsname, strerror(errno)); 1374 else if (d->descr_len == 1) 1375 sysctlperror("%s: description not set\n", gsname); 1376 else if (!qflag && !nflag) 1377 printf("%s: %s\n", gsname, d->descr_str); 1378 } 1379 1380 /* 1381 * ******************************************************************** 1382 * when things go wrong... 1383 * ******************************************************************** 1384 */ 1385 static void 1386 usage(void) 1387 { 1388 const char *progname = getprogname(); 1389 1390 (void)fprintf(stderr, 1391 "usage:\t%s %s\n" 1392 "\t%s %s\n" 1393 "\t%s %s\n" 1394 "\t%s %s\n" 1395 "\t%s %s\n" 1396 "\t%s %s\n", 1397 progname, "[-dne] [-x[x]|-r] variable ...", 1398 progname, "[-ne] [-q] -w variable=value ...", 1399 progname, "[-dne] -a", 1400 progname, "[-dne] -A", 1401 progname, "[-ne] -M", 1402 progname, "[-dne] [-q] -f file"); 1403 exit(1); 1404 } 1405 1406 static void 1407 getdesc1(int *name, u_int namelen, struct sysctlnode *pnode) 1408 { 1409 struct sysctlnode node; 1410 char buf[1024], *desc; 1411 struct sysctldesc *d = (void*)buf; 1412 size_t sz = sizeof(buf); 1413 int rc; 1414 1415 memset(&node, 0, sizeof(node)); 1416 node.sysctl_flags = SYSCTL_VERSION; 1417 node.sysctl_num = name[namelen - 1]; 1418 name[namelen - 1] = CTL_DESCRIBE; 1419 rc = sysctl(name, namelen, d, &sz, &node, sizeof(node)); 1420 1421 if (rc == -1 || 1422 d->descr_len == 1 || 1423 d->descr_num != pnode->sysctl_num || 1424 d->descr_ver != pnode->sysctl_ver) 1425 desc = (char *)-1; 1426 else 1427 desc = malloc(d->descr_len); 1428 1429 if (desc == NULL) 1430 desc = (char *)-1; 1431 if (desc != (char *)-1) 1432 memcpy(desc, &d->descr_str[0], d->descr_len); 1433 name[namelen - 1] = node.sysctl_num; 1434 if (pnode->sysctl_desc != NULL && 1435 pnode->sysctl_desc != (const char *)-1) 1436 /* LINTED mallocated it, must free it */ 1437 free((void*)pnode->sysctl_desc); 1438 pnode->sysctl_desc = desc; 1439 } 1440 1441 static void 1442 getdesc(int *name, u_int namelen, struct sysctlnode *pnode) 1443 { 1444 struct sysctlnode *node = pnode->sysctl_child; 1445 struct sysctldesc *d, *p, *plim; 1446 char *desc; 1447 size_t sz; 1448 int rc, i; 1449 1450 sz = 128 * pnode->sysctl_clen; 1451 name[namelen] = CTL_DESCRIBE; 1452 1453 /* 1454 * attempt *twice* to get the description chunk. if two tries 1455 * doesn't work, give up. 1456 */ 1457 i = 0; 1458 do { 1459 d = malloc(sz); 1460 if (d == NULL) 1461 return; 1462 rc = sysctl(name, namelen + 1, d, &sz, NULL, 0); 1463 if (rc == -1) { 1464 free(d); 1465 d = NULL; 1466 if (i == 0 && errno == ENOMEM) 1467 i = 1; 1468 else 1469 return; 1470 } 1471 } while (d == NULL); 1472 1473 /* 1474 * hokey nested loop here, giving O(n**2) behavior, but should 1475 * suffice for now 1476 */ 1477 plim = /*LINTED ptr cast*/(struct sysctldesc *)((char*)d + sz); 1478 for (i = 0; i < pnode->sysctl_clen; i++) { 1479 node = &pnode->sysctl_child[i]; 1480 for (p = d; p < plim; p = NEXT_DESCR(p)) 1481 if (node->sysctl_num == p->descr_num) 1482 break; 1483 if (p < plim && node[i].sysctl_ver == p->descr_ver) { 1484 /* 1485 * match found, attempt to attach description 1486 */ 1487 if (p->descr_len == 1) 1488 desc = NULL; 1489 else 1490 desc = malloc(p->descr_len); 1491 if (desc == NULL) 1492 desc = (char *)-1; 1493 else 1494 memcpy(desc, &p->descr_str[0], p->descr_len); 1495 node->sysctl_desc = desc; 1496 } 1497 } 1498 1499 free(d); 1500 } 1501 1502 static void 1503 trim_whitespace(char *s, int dir) 1504 { 1505 char *i, *o; 1506 1507 i = o = s; 1508 if (dir & 1) 1509 while (isspace((unsigned char)*i)) 1510 i++; 1511 while ((*o++ = *i++) != '\0'); 1512 o -= 2; /* already past nul, skip back to before it */ 1513 if (dir & 2) 1514 while (o > s && isspace((unsigned char)*o)) 1515 *o-- = '\0'; 1516 } 1517 1518 void 1519 sysctlerror(int soft) 1520 { 1521 if (soft) { 1522 switch (errno) { 1523 case ENOENT: 1524 case ENOPROTOOPT: 1525 case ENOTDIR: 1526 case EOPNOTSUPP: 1527 case EPROTONOSUPPORT: 1528 if (Aflag || req) 1529 sysctlperror("%s: the value is not available\n", 1530 gsname); 1531 return; 1532 } 1533 } 1534 1535 sysctlperror("%s: sysctl() failed with %s\n", 1536 gsname, strerror(errno)); 1537 if (!soft) 1538 EXIT(1); 1539 } 1540 1541 void 1542 sysctlparseerror(u_int namelen, const char *pname) 1543 { 1544 1545 sysctlperror("%s level name '%s' in '%s' is invalid\n", 1546 lname[namelen], gsname, pname); 1547 } 1548 1549 static void 1550 sysctlperror(const char *fmt, ...) 1551 { 1552 va_list ap; 1553 1554 (void)fprintf(warnfp, "%s: ", getprogname()); 1555 if (fn) 1556 (void)fprintf(warnfp, "%s#%zu: ", fn, nr); 1557 va_start(ap, fmt); 1558 (void)vfprintf(warnfp, fmt, ap); 1559 va_end(ap); 1560 } 1561 1562 1563 /* 1564 * ******************************************************************** 1565 * how to write to a "simple" node 1566 * ******************************************************************** 1567 */ 1568 static void 1569 write_number(int *name, u_int namelen, struct sysctlnode *node, char *value) 1570 { 1571 int ii, io; 1572 u_quad_t qi, qo; 1573 size_t si, so; 1574 int rc; 1575 void *i, *o; 1576 char *t; 1577 1578 if (fn) 1579 trim_whitespace(value, 3); 1580 1581 si = so = 0; 1582 i = o = NULL; 1583 errno = 0; 1584 qi = strtouq(value, &t, 0); 1585 if (errno != 0) { 1586 sysctlperror("%s: value too large\n", value); 1587 EXIT(1); 1588 } 1589 if (t == value || *t != '\0') { 1590 sysctlperror("%s: not a number\n", value); 1591 EXIT(1); 1592 } 1593 1594 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1595 case CTLTYPE_INT: 1596 ii = (int)qi; 1597 qo = ii; 1598 if (qo != qi) { 1599 sysctlperror("%s: value too large\n", value); 1600 EXIT(1); 1601 } 1602 o = &io; 1603 so = sizeof(io); 1604 i = ⅈ 1605 si = sizeof(ii); 1606 break; 1607 case CTLTYPE_QUAD: 1608 o = &qo; 1609 so = sizeof(qo); 1610 i = &qi; 1611 si = sizeof(qi); 1612 break; 1613 } 1614 1615 rc = sysctl(name, namelen, o, &so, i, si); 1616 if (rc == -1) { 1617 sysctlerror(0); 1618 return; 1619 } 1620 1621 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1622 case CTLTYPE_INT: 1623 display_number(node, gsname, &io, sizeof(io), DISPLAY_OLD); 1624 display_number(node, gsname, &ii, sizeof(ii), DISPLAY_NEW); 1625 break; 1626 case CTLTYPE_QUAD: 1627 display_number(node, gsname, &qo, sizeof(qo), DISPLAY_OLD); 1628 display_number(node, gsname, &qi, sizeof(qi), DISPLAY_NEW); 1629 break; 1630 } 1631 } 1632 1633 static void 1634 write_string(int *name, u_int namelen, struct sysctlnode *node, char *value) 1635 { 1636 char *i, *o; 1637 size_t si, so; 1638 int rc; 1639 1640 i = value; 1641 si = strlen(i) + 1; 1642 so = node->sysctl_size; 1643 if (si > so && so != 0) { 1644 sysctlperror("%s: string too long\n", value); 1645 EXIT(1); 1646 } 1647 o = malloc(so); 1648 if (o == NULL) { 1649 sysctlperror("%s: !malloc failed!\n", gsname); 1650 exit(1); 1651 } 1652 1653 rc = sysctl(name, namelen, o, &so, i, si); 1654 if (rc == -1) { 1655 sysctlerror(0); 1656 return; 1657 } 1658 1659 display_string(node, gsname, o, so, DISPLAY_OLD); 1660 display_string(node, gsname, i, si, DISPLAY_NEW); 1661 free(o); 1662 } 1663 1664 /* 1665 * ******************************************************************** 1666 * simple ways to print stuff consistently 1667 * ******************************************************************** 1668 */ 1669 static void 1670 display_number(const struct sysctlnode *node, const char *name, 1671 const void *data, size_t sz, int n) 1672 { 1673 u_quad_t q; 1674 int i; 1675 1676 if (qflag) 1677 return; 1678 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1679 return; 1680 1681 if (rflag && n != DISPLAY_OLD) { 1682 fwrite(data, sz, 1, stdout); 1683 return; 1684 } 1685 1686 if (!nflag) { 1687 if (n == DISPLAY_VALUE) 1688 printf("%s%s", name, eq); 1689 else if (n == DISPLAY_OLD) 1690 printf("%s: ", name); 1691 } 1692 1693 if (xflag > 1) { 1694 if (n != DISPLAY_NEW) 1695 printf("\n"); 1696 hex_dump(data, sz); 1697 return; 1698 } 1699 1700 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1701 case CTLTYPE_INT: 1702 memcpy(&i, data, sz); 1703 if (xflag) 1704 printf("0x%0*x", (int)sz * 2, i); 1705 else if (node->sysctl_flags & CTLFLAG_HEX) 1706 printf("%#x", i); 1707 else 1708 printf("%d", i); 1709 break; 1710 case CTLTYPE_QUAD: 1711 memcpy(&q, data, sz); 1712 if (xflag) 1713 printf("0x%0*" PRIx64, (int)sz * 2, q); 1714 else if (node->sysctl_flags & CTLFLAG_HEX) 1715 printf("%#" PRIx64, q); 1716 else 1717 printf("%" PRIu64, q); 1718 break; 1719 } 1720 1721 if (n == DISPLAY_OLD) 1722 printf(" -> "); 1723 else 1724 printf("\n"); 1725 } 1726 1727 static void 1728 display_string(const struct sysctlnode *node, const char *name, 1729 const void *data, size_t sz, int n) 1730 { 1731 const unsigned char *buf = data; 1732 int ni; 1733 1734 if (qflag) 1735 return; 1736 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1737 return; 1738 1739 if (rflag && n != DISPLAY_OLD) { 1740 fwrite(data, sz, 1, stdout); 1741 return; 1742 } 1743 1744 if (!nflag) { 1745 if (n == DISPLAY_VALUE) 1746 printf("%s%s", name, eq); 1747 else if (n == DISPLAY_OLD) 1748 printf("%s: ", name); 1749 } 1750 1751 if (xflag > 1) { 1752 if (n != DISPLAY_NEW) 1753 printf("\n"); 1754 hex_dump(data, sz); 1755 return; 1756 } 1757 1758 if (xflag || node->sysctl_flags & CTLFLAG_HEX) { 1759 for (ni = 0; ni < (int)sz; ni++) { 1760 if (xflag) 1761 printf("%02x", buf[ni]); 1762 if (buf[ni] == '\0') 1763 break; 1764 if (!xflag) 1765 printf("\\x%2.2x", buf[ni]); 1766 } 1767 } 1768 else 1769 printf("%.*s", (int)sz, buf); 1770 1771 if (n == DISPLAY_OLD) 1772 printf(" -> "); 1773 else 1774 printf("\n"); 1775 } 1776 1777 /*ARGSUSED*/ 1778 static void 1779 display_struct(const struct sysctlnode *node, const char *name, 1780 const void *data, size_t sz, int n) 1781 { 1782 const unsigned char *buf = data; 1783 int ni; 1784 size_t more; 1785 1786 if (qflag) 1787 return; 1788 if (!(xflag || rflag)) { 1789 if (Aflag || req) 1790 sysctlperror( 1791 "%s: this type is unknown to this program\n", 1792 gsname); 1793 return; 1794 } 1795 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1796 return; 1797 1798 if (rflag && n != DISPLAY_OLD) { 1799 fwrite(data, sz, 1, stdout); 1800 return; 1801 } 1802 1803 if (!nflag) { 1804 if (n == DISPLAY_VALUE) 1805 printf("%s%s", name, eq); 1806 else if (n == DISPLAY_OLD) 1807 printf("%s: ", name); 1808 } 1809 1810 if (xflag > 1) { 1811 if (n != DISPLAY_NEW) 1812 printf("\n"); 1813 hex_dump(data, sz); 1814 return; 1815 } 1816 1817 if (sz > 16) { 1818 more = sz - 16; 1819 sz = 16; 1820 } 1821 else 1822 more = 0; 1823 for (ni = 0; ni < (int)sz; ni++) 1824 printf("%02x", buf[ni]); 1825 if (more) 1826 printf("...(%zu more bytes)", more); 1827 printf("\n"); 1828 } 1829 1830 static void 1831 hex_dump(const unsigned char *buf, size_t len) 1832 { 1833 int i, j; 1834 char line[80], tmp[12]; 1835 1836 memset(line, ' ', sizeof(line)); 1837 for (i = 0, j = 15; i < len; i++) { 1838 j = i % 16; 1839 /* reset line */ 1840 if (j == 0) { 1841 line[58] = '|'; 1842 line[77] = '|'; 1843 line[78] = 0; 1844 snprintf(tmp, sizeof(tmp), "%07d", i); 1845 memcpy(&line[0], tmp, 7); 1846 } 1847 /* copy out hex version of byte */ 1848 snprintf(tmp, sizeof(tmp), "%02x", buf[i]); 1849 memcpy(&line[9 + j * 3], tmp, 2); 1850 /* copy out plain version of byte */ 1851 line[60 + j] = (isprint(buf[i])) ? buf[i] : '.'; 1852 /* print a full line and erase it */ 1853 if (j == 15) { 1854 printf("%s\n", line); 1855 memset(line, ' ', sizeof(line)); 1856 } 1857 } 1858 if (line[0] != ' ') 1859 printf("%s\n", line); 1860 printf("%07zu bytes\n", len); 1861 } 1862 1863 /* 1864 * ******************************************************************** 1865 * functions that handle particular nodes 1866 * ******************************************************************** 1867 */ 1868 /*ARGSUSED*/ 1869 static void 1870 printother(HANDLER_ARGS) 1871 { 1872 int rc; 1873 void *p; 1874 size_t sz1, sz2; 1875 1876 if (!(Aflag || req) || Mflag) 1877 return; 1878 1879 /* 1880 * okay...you asked for it, so let's give it a go 1881 */ 1882 while (type != CTLTYPE_NODE && (xflag || rflag)) { 1883 rc = sysctl(name, namelen, NULL, &sz1, NULL, 0); 1884 if (rc == -1 || sz1 == 0) 1885 break; 1886 p = malloc(sz1); 1887 if (p == NULL) 1888 break; 1889 sz2 = sz1; 1890 rc = sysctl(name, namelen, p, &sz2, NULL, 0); 1891 if (rc == -1 || sz1 != sz2) { 1892 free(p); 1893 break; 1894 } 1895 display_struct(pnode, gsname, p, sz1, DISPLAY_VALUE); 1896 free(p); 1897 return; 1898 } 1899 1900 /* 1901 * that didn't work...do we have a specific message for this 1902 * thing? 1903 */ 1904 if (v != NULL) { 1905 sysctlperror("%s: use '%s' to view this information\n", 1906 gsname, (const char *)v); 1907 return; 1908 } 1909 1910 /* 1911 * hmm...i wonder if we have any generic hints? 1912 */ 1913 switch (name[0]) { 1914 case CTL_NET: 1915 sysctlperror("%s: use 'netstat' to view this information\n", 1916 sname); 1917 break; 1918 case CTL_DEBUG: 1919 sysctlperror("%s: missing 'options DEBUG' from kernel?\n", 1920 sname); 1921 break; 1922 case CTL_DDB: 1923 sysctlperror("%s: missing 'options DDB' from kernel?\n", 1924 sname); 1925 break; 1926 } 1927 } 1928 1929 /*ARGSUSED*/ 1930 static void 1931 kern_clockrate(HANDLER_ARGS) 1932 { 1933 struct clockinfo clkinfo; 1934 size_t sz; 1935 int rc; 1936 1937 sz = sizeof(clkinfo); 1938 rc = sysctl(name, namelen, &clkinfo, &sz, NULL, 0); 1939 if (rc == -1) { 1940 sysctlerror(1); 1941 return; 1942 } 1943 if (sz != sizeof(clkinfo)) 1944 errx(1, "%s: !returned size wrong!", sname); 1945 1946 if (xflag || rflag) { 1947 display_struct(pnode, sname, &clkinfo, sz, 1948 DISPLAY_VALUE); 1949 return; 1950 } 1951 else if (!nflag) 1952 printf("%s: ", sname); 1953 printf("tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 1954 clkinfo.tick, clkinfo.tickadj, 1955 clkinfo.hz, clkinfo.profhz, clkinfo.stathz); 1956 } 1957 1958 /*ARGSUSED*/ 1959 static void 1960 kern_boottime(HANDLER_ARGS) 1961 { 1962 struct timeval timeval; 1963 time_t boottime; 1964 size_t sz; 1965 int rc; 1966 1967 sz = sizeof(timeval); 1968 rc = sysctl(name, namelen, &timeval, &sz, NULL, 0); 1969 if (rc == -1) { 1970 sysctlerror(1); 1971 return; 1972 } 1973 if (sz != sizeof(timeval)) 1974 errx(1, "%s: !returned size wrong!", sname); 1975 1976 boottime = timeval.tv_sec; 1977 if (xflag || rflag) 1978 display_struct(pnode, sname, &timeval, sz, 1979 DISPLAY_VALUE); 1980 else if (!nflag) 1981 /* ctime() provides the \n */ 1982 printf("%s%s%s", sname, eq, ctime(&boottime)); 1983 else if (nflag == 1) 1984 printf("%ld\n", (long)boottime); 1985 else 1986 printf("%ld.%06ld\n", (long)timeval.tv_sec, 1987 (long)timeval.tv_usec); 1988 } 1989 1990 /*ARGSUSED*/ 1991 static void 1992 kern_consdev(HANDLER_ARGS) 1993 { 1994 dev_t cons; 1995 size_t sz; 1996 int rc; 1997 1998 sz = sizeof(cons); 1999 rc = sysctl(name, namelen, &cons, &sz, NULL, 0); 2000 if (rc == -1) { 2001 sysctlerror(1); 2002 return; 2003 } 2004 if (sz != sizeof(cons)) 2005 errx(1, "%s: !returned size wrong!", sname); 2006 2007 if (xflag || rflag) 2008 display_struct(pnode, sname, &cons, sz, 2009 DISPLAY_VALUE); 2010 else if (!nflag) 2011 printf("%s%s%s\n", sname, eq, devname(cons, S_IFCHR)); 2012 else 2013 printf("0x%x\n", cons); 2014 } 2015 2016 /*ARGSUSED*/ 2017 static void 2018 kern_cp_time(HANDLER_ARGS) 2019 { 2020 u_int64_t *cp_time; 2021 size_t sz, osz; 2022 int rc, i, n; 2023 char s[sizeof("kern.cp_time.nnnnnn")]; 2024 const char *tname; 2025 2026 /* 2027 * three things to do here. 2028 * case 1: get sum (no Aflag and namelen == 2) 2029 * case 2: get specific processor (namelen == 3) 2030 * case 3: get all processors (Aflag and namelen == 2) 2031 */ 2032 2033 if (namelen == 2 && Aflag) { 2034 sz = sizeof(n); 2035 rc = sysctlbyname("hw.ncpu", &n, &sz, NULL, 0); 2036 if (rc != 0) 2037 return; /* XXX print an error, eh? */ 2038 n++; /* Add on space for the sum. */ 2039 sz = n * sizeof(u_int64_t) * CPUSTATES; 2040 } 2041 else { 2042 n = -1; /* Just print one data set. */ 2043 sz = sizeof(u_int64_t) * CPUSTATES; 2044 } 2045 2046 cp_time = malloc(sz); 2047 if (cp_time == NULL) { 2048 sysctlerror(1); 2049 return; 2050 } 2051 2052 osz = sz; 2053 rc = sysctl(name, namelen, cp_time + (n != -1) * CPUSTATES, &osz, 2054 NULL, 0); 2055 2056 if (rc == -1) { 2057 sysctlerror(1); 2058 free(cp_time); 2059 return; 2060 } 2061 2062 /* 2063 * Check, but account for space we'll occupy with the sum. 2064 */ 2065 if (osz != sz - (n != -1) * CPUSTATES * sizeof(u_int64_t)) 2066 errx(1, "%s: !returned size wrong!", sname); 2067 2068 /* 2069 * Compute the actual sum. Two calls would be easier (we 2070 * could just call ourselves recursively above), but the 2071 * numbers wouldn't add up. 2072 */ 2073 if (n != -1) { 2074 memset(cp_time, 0, sizeof(u_int64_t) * CPUSTATES); 2075 for (i = 1; i < n; i++) { 2076 cp_time[CP_USER] += cp_time[i * CPUSTATES + CP_USER]; 2077 cp_time[CP_NICE] += cp_time[i * CPUSTATES + CP_NICE]; 2078 cp_time[CP_SYS] += cp_time[i * CPUSTATES + CP_SYS]; 2079 cp_time[CP_INTR] += cp_time[i * CPUSTATES + CP_INTR]; 2080 cp_time[CP_IDLE] += cp_time[i * CPUSTATES + CP_IDLE]; 2081 } 2082 } 2083 2084 tname = sname; 2085 for (i = 0; n == -1 || i < n; i++) { 2086 if (i > 0) { 2087 (void)snprintf(s, sizeof(s), "%s%s%d", sname, sep, 2088 i - 1); 2089 tname = s; 2090 } 2091 if (xflag || rflag) 2092 display_struct(pnode, tname, cp_time + (i * CPUSTATES), 2093 sizeof(u_int64_t) * CPUSTATES, 2094 DISPLAY_VALUE); 2095 else { 2096 if (!nflag) 2097 printf("%s: ", tname); 2098 printf("user = %" PRIu64 2099 ", nice = %" PRIu64 2100 ", sys = %" PRIu64 2101 ", intr = %" PRIu64 2102 ", idle = %" PRIu64 2103 "\n", 2104 cp_time[i * CPUSTATES + CP_USER], 2105 cp_time[i * CPUSTATES + CP_NICE], 2106 cp_time[i * CPUSTATES + CP_SYS], 2107 cp_time[i * CPUSTATES + CP_INTR], 2108 cp_time[i * CPUSTATES + CP_IDLE]); 2109 } 2110 /* 2111 * Just printing the one node. 2112 */ 2113 if (n == -1) 2114 break; 2115 } 2116 2117 free(cp_time); 2118 } 2119 2120 /*ARGSUSED*/ 2121 static void 2122 vm_loadavg(HANDLER_ARGS) 2123 { 2124 struct loadavg loadavg; 2125 size_t sz; 2126 int rc; 2127 2128 sz = sizeof(loadavg); 2129 rc = sysctl(name, namelen, &loadavg, &sz, NULL, 0); 2130 if (rc == -1) { 2131 sysctlerror(1); 2132 return; 2133 } 2134 if (sz != sizeof(loadavg)) 2135 errx(1, "%s: !returned size wrong!", sname); 2136 2137 if (xflag || rflag) { 2138 display_struct(pnode, sname, &loadavg, sz, 2139 DISPLAY_VALUE); 2140 return; 2141 } 2142 if (!nflag) 2143 printf("%s: ", sname); 2144 printf("%.2f %.2f %.2f\n", 2145 (double) loadavg.ldavg[0] / loadavg.fscale, 2146 (double) loadavg.ldavg[1] / loadavg.fscale, 2147 (double) loadavg.ldavg[2] / loadavg.fscale); 2148 } 2149 2150 /*ARGSUSED*/ 2151 static void 2152 proc_limit(HANDLER_ARGS) 2153 { 2154 u_quad_t olim, *newp, nlim; 2155 size_t osz, nsz; 2156 char *t; 2157 int rc; 2158 2159 if (fn) 2160 trim_whitespace(value, 3); 2161 2162 osz = sizeof(olim); 2163 if (value != NULL) { 2164 nsz = sizeof(nlim); 2165 newp = &nlim; 2166 if (strcmp(value, "unlimited") == 0) 2167 nlim = RLIM_INFINITY; 2168 else { 2169 errno = 0; 2170 nlim = strtouq(value, &t, 0); 2171 if (t == value || *t != '\0' || errno != 0) { 2172 sysctlperror("%s: '%s' is not a valid limit\n", 2173 sname, value); 2174 EXIT(1); 2175 } 2176 } 2177 } 2178 else { 2179 nsz = 0; 2180 newp = NULL; 2181 } 2182 2183 rc = sysctl(name, namelen, &olim, &osz, newp, nsz); 2184 if (rc == -1) { 2185 sysctlerror(newp == NULL); 2186 return; 2187 } 2188 2189 if (newp && qflag) 2190 return; 2191 2192 if (rflag || xflag || olim != RLIM_INFINITY) 2193 display_number(pnode, sname, &olim, sizeof(olim), 2194 newp ? DISPLAY_OLD : DISPLAY_VALUE); 2195 else 2196 display_string(pnode, sname, "unlimited", 10, 2197 newp ? DISPLAY_OLD : DISPLAY_VALUE); 2198 2199 if (newp) { 2200 if (rflag || xflag || nlim != RLIM_INFINITY) 2201 display_number(pnode, sname, &nlim, sizeof(nlim), 2202 DISPLAY_NEW); 2203 else 2204 display_string(pnode, sname, "unlimited", 10, 2205 DISPLAY_NEW); 2206 } 2207 } 2208 2209 #ifdef CPU_DISKINFO 2210 /*ARGSUSED*/ 2211 static void 2212 machdep_diskinfo(HANDLER_ARGS) 2213 { 2214 struct disklist *dl; 2215 struct biosdisk_info *bi; 2216 struct nativedisk_info *ni; 2217 int rc; 2218 size_t sz; 2219 uint i, b, lim; 2220 2221 rc = sysctl(name, namelen, NULL, &sz, NULL, 0); 2222 if (rc == -1) { 2223 sysctlerror(1); 2224 return; 2225 } 2226 dl = malloc(sz); 2227 if (dl == NULL) { 2228 sysctlerror(1); 2229 return; 2230 } 2231 rc = sysctl(name, namelen, dl, &sz, NULL, 0); 2232 if (rc == -1) { 2233 sysctlerror(1); 2234 return; 2235 } 2236 2237 if (!nflag) 2238 printf("%s: ", sname); 2239 lim = dl->dl_nbiosdisks; 2240 if (lim > MAX_BIOSDISKS) 2241 lim = MAX_BIOSDISKS; 2242 for (bi = dl->dl_biosdisks, i = 0; i < lim; bi++, i++) 2243 printf("%x:%" PRIu64 "(%d/%d/%d),%x ", 2244 bi->bi_dev, bi->bi_lbasecs, 2245 bi->bi_cyl, bi->bi_head, bi->bi_sec, 2246 bi->bi_flags); 2247 lim = dl->dl_nnativedisks; 2248 ni = dl->dl_nativedisks; 2249 bi = dl->dl_biosdisks; 2250 /* LINTED -- pointer casts are tedious */ 2251 if ((char *)&ni[lim] != (char *)dl + sz) { 2252 sysctlperror("%s: size mismatch\n", gsname); 2253 return; 2254 } 2255 for (i = 0; i < lim; ni++, i++) { 2256 char t = ':'; 2257 printf(" %.*s", (int)sizeof ni->ni_devname, 2258 ni->ni_devname); 2259 for (b = 0; b < ni->ni_nmatches; t = ',', b++) 2260 printf("%c%x", t, 2261 bi[ni->ni_biosmatches[b]].bi_dev); 2262 } 2263 printf("\n"); 2264 } 2265 #endif /* CPU_DISKINFO */ 2266
Indexes created Sat Sep 20 22:09:52 GMT 2025