gram.y revision 1.10
1 %{ 2 /* $NetBSD: gram.y,v 1.10 2006/09/04 06:45:14 dsl Exp $ */ 3 4 /* 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This software was developed by the Computer Systems Engineering group 9 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 10 * contributed to Berkeley. 11 * 12 * All advertising materials mentioning features or use of this software 13 * must display the following acknowledgement: 14 * This product includes software developed by the University of 15 * California, Lawrence Berkeley Laboratories. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 3. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * from: @(#)gram.y 8.1 (Berkeley) 6/6/93 42 */ 43 44 #include <sys/types.h> 45 #include <sys/param.h> 46 #include <ctype.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <errno.h> 51 #include "defs.h" 52 #include "sem.h" 53 54 #define FORMAT(n) (((n).fmt == 8 && (n).val != 0) ? "0%llo" : \ 55 ((n).fmt == 16) ? "0x%llx" : "%lld") 56 57 #define stop(s) error(s), exit(1) 58 59 static struct config conf; /* at most one active at a time */ 60 61 /* the following is used to recover nvlist space after errors */ 62 static struct nvlist *alloc[1000]; 63 static int adepth; 64 #define new0(n,s,p,i,x) (alloc[adepth++] = newnv(n, s, p, i, x)) 65 #define new_n(n) new0(n, NULL, NULL, 0, NULL) 66 #define new_nx(n, x) new0(n, NULL, NULL, 0, x) 67 #define new_ns(n, s) new0(n, s, NULL, 0, NULL) 68 #define new_si(s, i) new0(NULL, s, NULL, i, NULL) 69 #define new_nsi(n,s,i) new0(n, s, NULL, i, NULL) 70 #define new_np(n, p) new0(n, NULL, p, 0, NULL) 71 #define new_s(s) new0(NULL, s, NULL, 0, NULL) 72 #define new_p(p) new0(NULL, NULL, p, 0, NULL) 73 #define new_px(p, x) new0(NULL, NULL, p, 0, x) 74 #define new_sx(s, x) new0(NULL, s, NULL, 0, x) 75 76 #define fx_atom(s) new0(s, NULL, NULL, FX_ATOM, NULL) 77 #define fx_not(e) new0(NULL, NULL, NULL, FX_NOT, e) 78 #define fx_and(e1, e2) new0(NULL, NULL, e1, FX_AND, e2) 79 #define fx_or(e1, e2) new0(NULL, NULL, e1, FX_OR, e2) 80 81 static void cleanup(void); 82 static void setmachine(const char *, const char *, struct nvlist *); 83 static void check_maxpart(void); 84 85 static void app(struct nvlist *, struct nvlist *); 86 87 static struct nvlist *mk_nsis(const char *, int, struct nvlist *, int); 88 static struct nvlist *mk_ns(const char *, struct nvlist *); 89 90 %} 91 92 %union { 93 struct attr *attr; 94 struct devbase *devb; 95 struct deva *deva; 96 struct nvlist *list; 97 const char *str; 98 struct numconst num; 99 int64_t val; 100 } 101 102 %token AND AT ATTACH 103 %token BLOCK BUILD 104 %token CHAR COMPILE_WITH CONFIG 105 %token DEFFS DEFINE DEFOPT DEFPARAM DEFFLAG DEFPSEUDO DEVICE DEVCLASS DUMPS 106 %token DEVICE_MAJOR 107 %token ENDFILE 108 %token XFILE FILE_SYSTEM FLAGS 109 %token IDENT 110 %token XMACHINE MAJOR MAKEOPTIONS MAXUSERS MAXPARTITIONS MINOR 111 %token NEEDS_COUNT NEEDS_FLAG NO 112 %token XOBJECT OBSOLETE ON OPTIONS 113 %token PACKAGE PLUSEQ PREFIX PSEUDO_DEVICE 114 %token ROOT 115 %token SOURCE 116 %token TYPE 117 %token VERSION 118 %token WITH 119 %token <num> NUMBER 120 %token <str> PATHNAME QSTRING WORD EMPTYSTRING 121 %token ENDDEFS 122 123 %left '|' 124 %left '&' 125 126 %type <list> fopts fexpr fatom 127 %type <str> fs_spec 128 %type <val> fflgs fflag oflgs oflag 129 %type <str> rule 130 %type <attr> attr 131 %type <devb> devbase 132 %type <deva> devattach_opt 133 %type <list> atlist interface_opt 134 %type <str> atname 135 %type <list> loclist_opt loclist locdef 136 %type <str> locdefault 137 %type <list> values locdefaults 138 %type <list> attrs_opt attrs 139 %type <list> locators locator 140 %type <list> dev_spec 141 %type <str> device_instance 142 %type <str> attachment 143 %type <str> value 144 %type <val> major_minor npseudo 145 %type <num> signed_number 146 %type <val> flags_opt 147 %type <str> deffs 148 %type <list> deffses 149 %type <str> fsoptfile_opt 150 %type <list> defopt 151 %type <list> defopts 152 %type <str> optdep 153 %type <list> optdeps 154 %type <list> defoptdeps 155 %type <str> optfile_opt 156 %type <list> subarches_opt subarches 157 %type <str> filename stringvalue locname mkvarname 158 %type <val> device_major_block device_major_char 159 160 %% 161 162 /* 163 * A configuration consists of a machine type, followed by the machine 164 * definition files (via the include() mechanism), followed by the 165 * configuration specification(s) proper. In effect, this is two 166 * separate grammars, with some shared terminals and nonterminals. 167 * Note that we do not have sufficient keywords to enforce any order 168 * between elements of "topthings" without introducing shift/reduce 169 * conflicts. Instead, check order requirements in the C code. 170 */ 171 Configuration: 172 topthings /* dirspecs, include "std.arch" */ 173 machine_spec /* "machine foo" from machine descr. */ 174 dev_defs ENDDEFS /* all machine definition files */ 175 { check_maxpart(); check_version(); } 176 specs; /* rest of machine description */ 177 178 topthings: 179 topthings topthing | 180 /* empty */; 181 182 topthing: 183 SOURCE filename '\n' { if (!srcdir) srcdir = $2; } | 184 BUILD filename '\n' { if (!builddir) builddir = $2; } | 185 '\n'; 186 187 machine_spec: 188 XMACHINE WORD '\n' { setmachine($2,NULL,NULL); } | 189 XMACHINE WORD WORD subarches_opt '\n' { setmachine($2,$3,$4); } | 190 error { stop("cannot proceed without machine specifier"); }; 191 192 subarches_opt: 193 subarches | 194 /* empty */ { $$ = NULL; }; 195 196 subarches: 197 subarches WORD { $$ = new_nx($2, $1); } | 198 WORD { $$ = new_n($1); }; 199 200 /* 201 * Various nonterminals shared between the grammars. 202 */ 203 file: 204 XFILE filename fopts fflgs rule { addfile($2, $3, $4, $5); }; 205 206 object: 207 XOBJECT filename fopts oflgs { addobject($2, $3, $4); }; 208 209 device_major: 210 DEVICE_MAJOR WORD device_major_char device_major_block fopts 211 { adddevm($2, $3, $4, $5); }; 212 213 device_major_block: 214 BLOCK NUMBER { $$ = $2.val; } | 215 /* empty */ { $$ = -1; }; 216 217 device_major_char: 218 CHAR NUMBER { $$ = $2.val; } | 219 /* empty */ { $$ = -1; }; 220 221 /* order of options is important, must use right recursion */ 222 fopts: 223 fexpr { $$ = $1; } | 224 /* empty */ { $$ = NULL; }; 225 226 fexpr: 227 fatom { $$ = $1; } | 228 '!' fatom { $$ = fx_not($2); } | 229 fexpr '&' fexpr { $$ = fx_and($1, $3); } | 230 fexpr '|' fexpr { $$ = fx_or($1, $3); } | 231 '(' fexpr ')' { $$ = $2; }; 232 233 fatom: 234 WORD { $$ = fx_atom($1); }; 235 236 fflgs: 237 fflgs fflag { $$ = $1 | $2; } | 238 /* empty */ { $$ = 0; }; 239 240 fflag: 241 NEEDS_COUNT { $$ = FI_NEEDSCOUNT; } | 242 NEEDS_FLAG { $$ = FI_NEEDSFLAG; }; 243 244 oflgs: 245 oflgs oflag { $$ = $1 | $2; } | 246 /* empty */ { $$ = 0; }; 247 248 oflag: 249 NEEDS_FLAG { $$ = OI_NEEDSFLAG; }; 250 251 rule: 252 COMPILE_WITH stringvalue { $$ = $2; } | 253 /* empty */ { $$ = NULL; }; 254 255 prefix: 256 PREFIX filename { prefix_push($2); } | 257 PREFIX { prefix_pop(); }; 258 259 /* 260 * The machine definitions grammar. 261 */ 262 dev_defs: 263 dev_defs dev_def | 264 dev_defs ENDFILE { enddefs(); checkfiles(); } | 265 /* empty */; 266 267 dev_def: 268 one_def '\n' { adepth = 0; } | 269 '\n' | 270 error '\n' { cleanup(); }; 271 272 one_def: 273 file | 274 object | 275 device_major { do_devsw = 1; } | 276 prefix | 277 DEVCLASS WORD { (void)defattr($2, NULL, NULL, 1); } | 278 DEFFS fsoptfile_opt deffses defoptdeps 279 { deffilesystem($2, $3, $4); } | 280 DEFINE WORD interface_opt attrs_opt 281 { (void)defattr($2, $3, $4, 0); } | 282 DEFOPT optfile_opt defopts defoptdeps 283 { defoption($2, $3, $4); } | 284 DEFFLAG optfile_opt defopts defoptdeps 285 { defflag($2, $3, $4, 0); } | 286 OBSOLETE DEFFLAG optfile_opt defopts 287 { defflag($3, $4, NULL, 1); } | 288 DEFPARAM optfile_opt defopts defoptdeps 289 { defparam($2, $3, $4, 0); } | 290 OBSOLETE DEFPARAM optfile_opt defopts 291 { defparam($3, $4, NULL, 1); } | 292 DEVICE devbase interface_opt attrs_opt 293 { defdev($2, $3, $4, 0); } | 294 ATTACH devbase AT atlist devattach_opt attrs_opt 295 { defdevattach($5, $2, $4, $6); } | 296 MAXPARTITIONS NUMBER { maxpartitions = $2.val; } | 297 MAXUSERS NUMBER NUMBER NUMBER { setdefmaxusers($2.val, $3.val, $4.val); } | 298 MAKEOPTIONS condmkopt_list | 299 DEFPSEUDO devbase interface_opt attrs_opt 300 { defdev($2, $3, $4, 1); } | 301 MAJOR '{' majorlist '}' | 302 VERSION NUMBER { setversion($2.val); }; 303 304 atlist: 305 atlist ',' atname { $$ = new_nx($3, $1); } | 306 atname { $$ = new_n($1); }; 307 308 atname: 309 WORD { $$ = $1; } | 310 ROOT { $$ = NULL; }; 311 312 deffses: 313 deffses deffs { $$ = new_nx($2, $1); } | 314 deffs { $$ = new_n($1); }; 315 316 deffs: 317 WORD { $$ = $1; }; 318 319 defoptdeps: 320 ':' optdeps { $$ = $2; } | 321 /* empty */ { $$ = NULL; }; 322 323 optdeps: 324 optdeps ',' optdep { $$ = new_nx($3, $1); } | 325 optdep { $$ = new_n($1); }; 326 327 optdep: 328 WORD { $$ = $1; }; 329 330 defopts: 331 defopts defopt { $2->nv_next = $1; $$ = $2; } | 332 defopt { $$ = $1; }; 333 334 defopt: 335 WORD { $$ = new_n($1); } | ; 336 WORD '=' value { $$ = new_ns($1, $3); }; 337 338 devbase: 339 WORD { $$ = getdevbase($1); }; 340 341 devattach_opt: 342 WITH WORD { $$ = getdevattach($2); } | 343 /* empty */ { $$ = NULL; }; 344 345 interface_opt: 346 '{' loclist_opt '}' { $$ = new_nx("", $2); } | 347 /* empty */ { $$ = NULL; }; 348 349 loclist_opt: 350 loclist { $$ = $1; } | 351 /* empty */ { $$ = NULL; }; 352 353 /* loclist order matters, must use right recursion */ 354 loclist: 355 locdef ',' loclist { $$ = $1; app($1, $3); } | 356 locdef { $$ = $1; }; 357 358 /* "[ WORD locdefault ]" syntax may be unnecessary... */ 359 locdef: 360 locname locdefault { $$ = new_nsi($1, $2, 0); } | 361 locname { $$ = new_nsi($1, NULL, 0); } | 362 '[' locname locdefault ']' { $$ = new_nsi($2, $3, 1); } | 363 locname '[' NUMBER ']' { $$ = mk_nsis($1, $3.val, NULL, 0); } | 364 locname '[' NUMBER ']' locdefaults 365 { $$ = mk_nsis($1, $3.val, $5, 0); } | 366 '[' locname '[' NUMBER ']' locdefaults ']' 367 { $$ = mk_nsis($2, $4.val, $6, 1); }; 368 369 locname: 370 WORD { $$ = $1; } | 371 QSTRING { $$ = $1; }; 372 373 locdefault: 374 '=' value { $$ = $2; }; 375 376 locdefaults: 377 '=' '{' values '}' { $$ = $3; }; 378 379 fsoptfile_opt: 380 filename { $$ = $1; } | 381 /* empty */ { $$ = NULL; }; 382 383 optfile_opt: 384 filename { $$ = $1; } | 385 /* empty */ { $$ = NULL; }; 386 387 filename: 388 QSTRING { $$ = $1; } | 389 PATHNAME { $$ = $1; }; 390 391 value: 392 QSTRING { $$ = $1; } | 393 WORD { $$ = $1; } | 394 EMPTYSTRING { $$ = $1; } | 395 signed_number { char bf[40]; 396 (void)snprintf(bf, sizeof(bf), 397 FORMAT($1), (long long)$1.val); 398 $$ = intern(bf); }; 399 400 stringvalue: 401 QSTRING { $$ = $1; } | 402 WORD { $$ = $1; }; 403 404 values: 405 value ',' values { $$ = new_sx($1, $3); } | 406 value { $$ = new_s($1); }; 407 408 signed_number: 409 NUMBER { $$ = $1; } | 410 '-' NUMBER { $$.fmt = $2.fmt; $$.val = -$2.val; }; 411 412 attrs_opt: 413 ':' attrs { $$ = $2; } | 414 /* empty */ { $$ = NULL; }; 415 416 attrs: 417 attrs ',' attr { $$ = new_px($3, $1); } | 418 attr { $$ = new_p($1); }; 419 420 attr: 421 WORD { $$ = getattr($1); }; 422 423 majorlist: 424 majorlist ',' majordef | 425 majordef; 426 427 majordef: 428 devbase '=' NUMBER { setmajor($1, $3.val); }; 429 430 431 /* 432 * The configuration grammar. 433 */ 434 specs: 435 specs spec | 436 /* empty */; 437 438 spec: 439 config_spec '\n' { adepth = 0; } | 440 '\n' | 441 error '\n' { cleanup(); }; 442 443 config_spec: 444 one_def | 445 NO FILE_SYSTEM no_fs_list | 446 FILE_SYSTEM fs_list | 447 NO MAKEOPTIONS no_mkopt_list | 448 MAKEOPTIONS mkopt_list | 449 NO OPTIONS no_opt_list | 450 OPTIONS opt_list | 451 MAXUSERS NUMBER { setmaxusers($2.val); } | 452 IDENT stringvalue { setident($2); } | 453 CONFIG conf root_spec sysparam_list 454 { addconf(&conf); } | 455 NO CONFIG WORD { delconf($3); } | 456 NO PSEUDO_DEVICE WORD { delpseudo($3); } | 457 PSEUDO_DEVICE WORD npseudo { addpseudo($2, $3); } | 458 NO device_instance AT attachment 459 { deldevi($2, $4); } | 460 NO DEVICE AT attachment { deldeva($4); } | 461 NO device_instance { deldev($2); } | 462 device_instance AT attachment locators flags_opt 463 { adddev($1, $3, $4, $5); }; 464 465 fs_list: 466 fs_list ',' fsoption | 467 fsoption; 468 469 fsoption: 470 WORD { addfsoption($1); }; 471 472 no_fs_list: 473 no_fs_list ',' no_fsoption | 474 no_fsoption; 475 476 no_fsoption: 477 WORD { delfsoption($1); }; 478 479 mkopt_list: 480 mkopt_list ',' mkoption | 481 mkoption; 482 483 mkvarname: 484 QSTRING { $$ = $1; } | 485 WORD { $$ = $1; }; 486 487 mkoption: 488 mkvarname '=' value { addmkoption($1, $3); } | 489 mkvarname PLUSEQ value { appendmkoption($1, $3); }; 490 491 condmkopt_list: 492 condmkopt_list ',' condmkoption | 493 condmkoption; 494 495 condmkoption: 496 WORD mkvarname PLUSEQ value { appendcondmkoption($1, $2, $4); }; 497 498 no_mkopt_list: 499 no_mkopt_list ',' no_mkoption | 500 no_mkoption; 501 502 no_mkoption: 503 WORD { delmkoption($1); } 504 505 opt_list: 506 opt_list ',' option | 507 option; 508 509 option: 510 WORD { addoption($1, NULL); } | 511 WORD '=' value { addoption($1, $3); }; 512 513 no_opt_list: 514 no_opt_list ',' no_option | 515 no_option; 516 517 no_option: 518 WORD { deloption($1); }; 519 520 conf: 521 WORD { conf.cf_name = $1; 522 conf.cf_lineno = currentline(); 523 conf.cf_fstype = NULL; 524 conf.cf_root = NULL; 525 conf.cf_dump = NULL; }; 526 527 root_spec: 528 ROOT on_opt dev_spec fs_spec_opt 529 { setconf(&conf.cf_root, "root", $3); }; 530 531 fs_spec_opt: 532 TYPE fs_spec { setfstype(&conf.cf_fstype, $2); } | 533 /* empty */; 534 535 fs_spec: 536 '?' { $$ = intern("?"); } | 537 WORD { $$ = $1; }; 538 539 sysparam_list: 540 sysparam_list sysparam | 541 /* empty */; 542 543 sysparam: 544 DUMPS on_opt dev_spec { setconf(&conf.cf_dump, "dumps", $3); }; 545 546 dev_spec: 547 '?' { $$ = new_si(intern("?"), NODEV); } | 548 WORD { $$ = new_si($1, NODEV); } | 549 major_minor { $$ = new_si(NULL, $1); }; 550 551 major_minor: 552 MAJOR NUMBER MINOR NUMBER { $$ = makedev($2.val, $4.val); }; 553 554 on_opt: 555 ON | /* empty */; 556 557 npseudo: 558 NUMBER { $$ = $1.val; } | 559 /* empty */ { $$ = 1; }; 560 561 device_instance: 562 WORD '*' { $$ = starref($1); } | 563 WORD { $$ = $1; }; 564 565 attachment: 566 ROOT { $$ = NULL; } | 567 WORD '?' { $$ = wildref($1); } | 568 WORD { $$ = $1; }; 569 570 locators: 571 locators locator { $$ = $2; app($2, $1); } | 572 /* empty */ { $$ = NULL; }; 573 574 locator: 575 WORD values { $$ = mk_ns($1, $2); } | 576 WORD '?' { $$ = new_ns($1, NULL); }; 577 578 flags_opt: 579 FLAGS NUMBER { $$ = $2.val; } | 580 /* empty */ { $$ = 0; }; 581 582 %% 583 584 void 585 yyerror(const char *s) 586 { 587 588 error("%s", s); 589 } 590 591 /* 592 * Cleanup procedure after syntax error: release any nvlists 593 * allocated during parsing the current line. 594 */ 595 static void 596 cleanup(void) 597 { 598 struct nvlist **np; 599 int i; 600 601 for (np = alloc, i = adepth; --i >= 0; np++) 602 nvfree(*np); 603 adepth = 0; 604 } 605 606 static void 607 setmachine(const char *mch, const char *mcharch, struct nvlist *mchsubarches) 608 { 609 char buf[MAXPATHLEN]; 610 struct nvlist *nv; 611 612 machine = mch; 613 machinearch = mcharch; 614 machinesubarches = mchsubarches; 615 616 /* 617 * Set up the file inclusion stack. This empty include tells 618 * the parser there are no more device definitions coming. 619 */ 620 strlcpy(buf, _PATH_DEVNULL, sizeof(buf)); 621 if (include(buf, ENDDEFS, 0, 0) != 0) 622 exit(1); 623 624 /* Include arch/${MACHINE}/conf/files.${MACHINE} */ 625 (void)snprintf(buf, sizeof(buf), "arch/%s/conf/files.%s", 626 machine, machine); 627 if (include(buf, ENDFILE, 0, 0) != 0) 628 exit(1); 629 630 /* Include any arch/${MACHINE_SUBARCH}/conf/files.${MACHINE_SUBARCH} */ 631 for (nv = machinesubarches; nv != NULL; nv = nv->nv_next) { 632 (void)snprintf(buf, sizeof(buf), "arch/%s/conf/files.%s", 633 nv->nv_name, nv->nv_name); 634 if (include(buf, ENDFILE, 0, 0) != 0) 635 exit(1); 636 } 637 638 /* Include any arch/${MACHINE_ARCH}/conf/files.${MACHINE_ARCH} */ 639 if (machinearch != NULL) 640 (void)snprintf(buf, sizeof(buf), "arch/%s/conf/files.%s", 641 machinearch, machinearch); 642 else 643 strlcpy(buf, _PATH_DEVNULL, sizeof(buf)); 644 if (include(buf, ENDFILE, 0, 0) != 0) 645 exit(1); 646 647 /* 648 * Include the global conf/files. As the last thing 649 * pushed on the stack, it will be processed first. 650 */ 651 if (include("conf/files", ENDFILE, 0, 0) != 0) 652 exit(1); 653 654 oktopackage = 1; 655 } 656 657 static void 658 check_maxpart(void) 659 { 660 661 if (maxpartitions <= 0) { 662 stop("cannot proceed without maxpartitions specifier"); 663 } 664 } 665 666 static void 667 check_version(void) 668 { 669 /* 670 * In essence, version is 0 and is not supported anymore 671 */ 672 if (version < CONFIG_MINVERSION) 673 stop("your sources are out of date -- please update."); 674 } 675 676 static void 677 app(struct nvlist *p, struct nvlist *q) 678 { 679 while (p->nv_next) 680 p = p->nv_next; 681 p->nv_next = q; 682 } 683 684 static struct nvlist * 685 mk_nsis(const char *name, int count, struct nvlist *adefs, int opt) 686 { 687 struct nvlist *defs = adefs; 688 struct nvlist **p; 689 char buf[200]; 690 int i; 691 692 if (count <= 0) { 693 fprintf(stderr, "config: array with <= 0 size: %s\n", name); 694 exit(1); 695 } 696 p = &defs; 697 for(i = 0; i < count; i++) { 698 if (*p == NULL) 699 *p = new_s("0"); 700 snprintf(buf, sizeof(buf), "%s%c%d", name, ARRCHR, i); 701 (*p)->nv_name = i == 0 ? name : intern(buf); 702 (*p)->nv_int = i > 0 || opt; 703 p = &(*p)->nv_next; 704 } 705 *p = 0; 706 return defs; 707 } 708 709 710 static struct nvlist * 711 mk_ns(const char *name, struct nvlist *vals) 712 { 713 struct nvlist *p; 714 char buf[200]; 715 int i; 716 717 for(i = 0, p = vals; p; i++, p = p->nv_next) { 718 snprintf(buf, sizeof(buf), "%s%c%d", name, ARRCHR, i); 719 p->nv_name = i == 0 ? name : intern(buf); 720 } 721 return vals; 722 } 723 724
Indexes created Thu Oct 02 14:10:14 GMT 2025