1 /* 2 * sh.err.c: Error printing routines. 3 */ 4 /*- 5 * Copyright (c) 1980, 1991 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 #define _h_sh_err /* Don't redefine the errors */ 33 #include "sh.h" 34 #include <assert.h> 35 36 /* 37 * C Shell 38 */ 39 40 #ifdef lint 41 #undef va_arg 42 #define va_arg(a, b) (a ? (b) 0 : (b) 0) 43 #endif 44 45 char *seterr = NULL; /* Holds last error if there was one */ 46 extern int enterhist; 47 48 #define ERR_FLAGS 0xf0000000 49 #define ERR_NAME 0x10000000 50 #define ERR_SILENT 0x20000000 51 #define ERR_OLD 0x40000000 52 #define ERR_INTERRUPT 0x80000000 53 54 #define ERR_SYNTAX 0 55 #define ERR_NOTALLOWED 1 56 #define ERR_WTOOLONG 2 57 #define ERR_LTOOLONG 3 58 #define ERR_DOLZERO 4 59 #define ERR_INCBR 5 60 #define ERR_EXPORD 6 61 #define ERR_BADMOD 7 62 #define ERR_SUBSCRIPT 8 63 #define ERR_BADNUM 9 64 #define ERR_NOMORE 10 65 #define ERR_FILENAME 11 66 #define ERR_GLOB 12 67 #define ERR_COMMAND 13 68 #define ERR_TOOFEW 14 69 #define ERR_TOOMANY 15 70 #define ERR_DANGER 16 71 #define ERR_EMPTYIF 17 72 #define ERR_IMPRTHEN 18 73 #define ERR_NOPAREN 19 74 #define ERR_NOTFOUND 20 75 #define ERR_MASK 21 76 #define ERR_LIMIT 22 77 #define ERR_TOOLARGE 23 78 #define ERR_SCALEF 24 79 #define ERR_UNDVAR 25 80 #define ERR_DEEP 26 81 #define ERR_BADSIG 27 82 #define ERR_UNKSIG 28 83 #define ERR_VARBEGIN 29 84 #define ERR_VARTOOLONG 30 85 #define ERR_VARALNUM 31 86 #define ERR_JOBCONTROL 32 87 #define ERR_EXPRESSION 33 88 #define ERR_NOHOMEDIR 34 89 #define ERR_CANTCHANGE 35 90 #define ERR_NULLCOM 36 91 #define ERR_ASSIGN 37 92 #define ERR_UNKNOWNOP 38 93 #define ERR_AMBIG 39 94 #define ERR_EXISTS 40 95 #define ERR_ARGC 41 96 #define ERR_INTR 42 97 #define ERR_RANGE 43 98 #define ERR_OVERFLOW 44 99 #define ERR_NOSUCHJOB 45 100 #define ERR_TERMINAL 46 101 #define ERR_NOTWHILE 47 102 #define ERR_NOPROC 48 103 #define ERR_NOMATCH 49 104 #define ERR_MISSING 50 105 #define ERR_UNMATCHED 51 106 #define ERR_NOMEM 52 107 #define ERR_PIPE 53 108 #define ERR_SYSTEM 54 109 #define ERR_STRING 55 110 #define ERR_JOBS 56 111 #define ERR_JOBARGS 57 112 #define ERR_JOBCUR 58 113 #define ERR_JOBPREV 59 114 #define ERR_JOBPAT 60 115 #define ERR_NESTING 61 116 #define ERR_JOBCTRLSUB 62 117 #define ERR_SYNC 63 118 #define ERR_STOPPED 64 119 #define ERR_NODIR 65 120 #define ERR_EMPTY 66 121 #define ERR_BADDIR 67 122 #define ERR_DIRUS 68 123 #define ERR_HFLAG 69 124 #define ERR_NOTLOGIN 70 125 #define ERR_DIV0 71 126 #define ERR_MOD0 72 127 #define ERR_BADSCALE 73 128 #define ERR_SUSPLOG 74 129 #define ERR_UNKUSER 75 130 #define ERR_NOHOME 76 131 #define ERR_HISTUS 77 132 #define ERR_SPDOLLT 78 133 #define ERR_NEWLINE 79 134 #define ERR_SPSTAR 80 135 #define ERR_DIGIT 81 136 #define ERR_VARILL 82 137 #define ERR_NLINDEX 83 138 #define ERR_EXPOVFL 84 139 #define ERR_VARSYN 85 140 #define ERR_BADBANG 86 141 #define ERR_NOSUBST 87 142 #define ERR_BADSUBST 88 143 #define ERR_LHS 89 144 #define ERR_RHSLONG 90 145 #define ERR_BADBANGMOD 91 146 #define ERR_MODFAIL 92 147 #define ERR_SUBOVFL 93 148 #define ERR_BADBANGARG 94 149 #define ERR_NOSEARCH 95 150 #define ERR_NOEVENT 96 151 #define ERR_TOOMANYRP 97 152 #define ERR_TOOMANYLP 98 153 #define ERR_BADPLP 99 154 #define ERR_MISRED 100 155 #define ERR_OUTRED 101 156 #define ERR_REDPAR 102 157 #define ERR_INRED 103 158 #define ERR_BADPLPS 104 159 #define ERR_ALIASLOOP 105 160 #define ERR_NOWATCH 106 161 #define ERR_NOSCHED 107 162 #define ERR_SCHEDUSAGE 108 163 #define ERR_SCHEDEV 109 164 #define ERR_SCHEDCOM 110 165 #define ERR_SCHEDTIME 111 166 #define ERR_SCHEDREL 112 167 #define ERR_TCNOSTR 113 168 #define ERR_SETTCUS 114 169 #define ERR_TCCAP 115 170 #define ERR_TCPARM 116 171 #define ERR_TCARGS 117 172 #define ERR_TCNARGS 118 173 #define ERR_TCUSAGE 119 174 #define ERR_ARCH 120 175 #define ERR_HISTLOOP 121 176 #define ERR_FILEINQ 122 177 #define ERR_SELOVFL 123 178 #define ERR_TCSHUSAGE 124 179 #define ERR_COMPCOM 125 180 #define ERR_COMPINV 126 181 #define ERR_COMPMIS 127 182 #define ERR_COMPINC 128 183 #define ERR_MFLAG 129 184 #define ERR_ULIMUS 130 185 #define ERR_READONLY 131 186 #define ERR_BADJOB 132 187 #define ERR_INVALID 133 188 #define ERR_BADCOLORVAR 134 189 #define ERR_EOF 135 190 #define NO_ERRORS 136 191 192 static const char *elst[NO_ERRORS] INIT_ZERO_STRUCT; 193 194 /* 195 * Init the elst depending on the locale 196 */ 197 void 198 errinit(void) 199 { 200 #ifdef NLS_CATALOGS 201 size_t i; 202 203 for (i = 0; i < NO_ERRORS; i++) 204 xfree((char *)(intptr_t)elst[i]); 205 # if defined(__DragonFly__) || defined(hpux) || defined(__MidnightBSD__) 206 # define NLS_MAXSET 30 207 for (i = 1; i <= NLS_MAXSET; i++) 208 CGETS(i, 1, "" ); 209 # endif 210 #endif 211 212 elst[ERR_SYNTAX] = CSAVS(1, 1, "Syntax Error"); 213 elst[ERR_NOTALLOWED] = CSAVS(1, 2, "%s is not allowed"); 214 elst[ERR_WTOOLONG] = CSAVS(1, 3, "Word too long"); 215 elst[ERR_LTOOLONG] = CSAVS(1, 4, "$< line too long"); 216 elst[ERR_DOLZERO] = CSAVS(1, 5, "No file for $0"); 217 elst[ERR_INCBR] = CSAVS(1, 6, "Incomplete [] modifier"); 218 elst[ERR_EXPORD] = CSAVS(1, 7, "$ expansion must end before ]"); 219 elst[ERR_BADMOD] = CSAVS(1, 8, "Bad : modifier in $ '%c'"); 220 elst[ERR_SUBSCRIPT] = CSAVS(1, 9, "Subscript error"); 221 elst[ERR_BADNUM] = CSAVS(1, 10, "Badly formed number"); 222 elst[ERR_NOMORE] = CSAVS(1, 11, "No more words"); 223 elst[ERR_FILENAME] = CSAVS(1, 12, "Missing file name"); 224 elst[ERR_GLOB] = CSAVS(1, 13, "Internal glob error"); 225 elst[ERR_COMMAND] = CSAVS(1, 14, "Command not found"); 226 elst[ERR_TOOFEW] = CSAVS(1, 15, "Too few arguments"); 227 elst[ERR_TOOMANY] = CSAVS(1, 16, "Too many arguments"); 228 elst[ERR_DANGER] = CSAVS(1, 17, "Too dangerous to alias that"); 229 elst[ERR_EMPTYIF] = CSAVS(1, 18, "Empty if"); 230 elst[ERR_IMPRTHEN] = CSAVS(1, 19, "Improper then"); 231 elst[ERR_NOPAREN] = CSAVS(1, 20, "Words not parenthesized"); 232 elst[ERR_NOTFOUND] = CSAVS(1, 21, "%s not found"); 233 elst[ERR_MASK] = CSAVS(1, 22, "Improper mask"); 234 elst[ERR_LIMIT] = CSAVS(1, 23, "No such limit"); 235 elst[ERR_TOOLARGE] = CSAVS(1, 24, "Argument too large"); 236 elst[ERR_SCALEF] = CSAVS(1, 25, "Improper or unknown scale factor"); 237 elst[ERR_UNDVAR] = CSAVS(1, 26, "Undefined variable"); 238 elst[ERR_DEEP] = CSAVS(1, 27, "Directory stack not that deep"); 239 elst[ERR_BADSIG] = CSAVS(1, 28, "Bad signal number"); 240 elst[ERR_UNKSIG] = CSAVS(1, 29, "Unknown signal; kill -l lists signals"); 241 elst[ERR_VARBEGIN] = CSAVS(1, 30, "Variable name must begin with a letter"); 242 elst[ERR_VARTOOLONG] = CSAVS(1, 31, "Variable name too long"); 243 elst[ERR_VARALNUM] = CSAVS(1, 32, 244 "Variable name must contain alphanumeric characters"); 245 elst[ERR_JOBCONTROL] = CSAVS(1, 33, "No job control in this shell"); 246 elst[ERR_EXPRESSION] = CSAVS(1, 34, "Expression Syntax"); 247 elst[ERR_NOHOMEDIR] = CSAVS(1, 35, "No home directory"); 248 elst[ERR_CANTCHANGE] = CSAVS(1, 36, "Can't change to home directory"); 249 elst[ERR_NULLCOM] = CSAVS(1, 37, "Invalid null command"); 250 elst[ERR_ASSIGN] = CSAVS(1, 38, "Assignment missing expression"); 251 elst[ERR_UNKNOWNOP] = CSAVS(1, 39, "Unknown operator"); 252 elst[ERR_AMBIG] = CSAVS(1, 40, "Ambiguous"); 253 elst[ERR_EXISTS] = CSAVS(1, 41, "%s: File exists"); 254 elst[ERR_ARGC] = CSAVS(1, 42, "Argument for -c ends in backslash"); 255 elst[ERR_INTR] = CSAVS(1, 43, "Interrupted"); 256 elst[ERR_RANGE] = CSAVS(1, 44, "Subscript out of range"); 257 elst[ERR_OVERFLOW] = CSAVS(1, 45, "Line overflow"); 258 elst[ERR_NOSUCHJOB] = CSAVS(1, 46, "No such job"); 259 elst[ERR_TERMINAL] = CSAVS(1, 47, "Can't from terminal"); 260 elst[ERR_NOTWHILE] = CSAVS(1, 48, "Not in while/foreach"); 261 elst[ERR_NOPROC] = CSAVS(1, 49, "No more processes"); 262 elst[ERR_NOMATCH] = CSAVS(1, 50, "No match"); 263 elst[ERR_MISSING] = CSAVS(1, 51, "Missing '%c'"); 264 elst[ERR_UNMATCHED] = CSAVS(1, 52, "Unmatched '%c'"); 265 elst[ERR_NOMEM] = CSAVS(1, 53, "Out of memory"); 266 elst[ERR_PIPE] = CSAVS(1, 54, "Can't make pipe"); 267 elst[ERR_SYSTEM] = CSAVS(1, 55, "%s: %s"); 268 elst[ERR_STRING] = CSAVS(1, 56, "%s"); 269 elst[ERR_JOBS] = CSAVS(1, 57, "Usage: jobs [ -lZ ]"); 270 elst[ERR_JOBARGS] = CSAVS(1, 58, "Arguments should be jobs or process id's"); 271 elst[ERR_JOBCUR] = CSAVS(1, 59, "No current job"); 272 elst[ERR_JOBPREV] = CSAVS(1, 60, "No previous job"); 273 elst[ERR_JOBPAT] = CSAVS(1, 61, "No job matches pattern"); 274 elst[ERR_NESTING] = CSAVS(1, 62, "Fork nesting > %d; maybe `...` loop"); 275 elst[ERR_JOBCTRLSUB] = CSAVS(1, 63, "No job control in subshells"); 276 elst[ERR_SYNC] = CSAVS(1, 64, "Sync fault: Process %d not found"); 277 elst[ERR_STOPPED] = 278 #ifdef SUSPENDED 279 CSAVS(1, 65, "%sThere are suspended jobs"); 280 #else 281 CSAVS(1, 66, "%sThere are stopped jobs"); 282 #endif /* SUSPENDED */ 283 elst[ERR_NODIR] = CSAVS(1, 67, "No other directory"); 284 elst[ERR_EMPTY] = CSAVS(1, 68, "Directory stack empty"); 285 elst[ERR_BADDIR] = CSAVS(1, 69, "Bad directory"); 286 elst[ERR_DIRUS] = CSAVS(1, 70, "Usage: %s [-%s]%s"); 287 elst[ERR_HFLAG] = CSAVS(1, 71, "No operand for -h flag"); 288 elst[ERR_NOTLOGIN] = CSAVS(1, 72, "Not a login shell"); 289 elst[ERR_DIV0] = CSAVS(1, 73, "Division by 0"); 290 elst[ERR_MOD0] = CSAVS(1, 74, "Mod by 0"); 291 elst[ERR_BADSCALE] = CSAVS(1, 75, "Bad scaling; did you mean \"%s\"?"); 292 elst[ERR_SUSPLOG] = CSAVS(1, 76, "Can't suspend a login shell (yet)"); 293 elst[ERR_UNKUSER] = CSAVS(1, 77, "Unknown user: %s"); 294 elst[ERR_NOHOME] = CSAVS(1, 78, "No $home variable set"); 295 elst[ERR_HISTUS] = CSAVS(1, 79, 296 "Usage: history [-%s] [# number of events]"); 297 elst[ERR_SPDOLLT] = CSAVS(1, 80, "$, ! or < not allowed with $# or $?"); 298 elst[ERR_NEWLINE] = CSAVS(1, 81, "Newline in variable name"); 299 elst[ERR_SPSTAR] = CSAVS(1, 82, "* not allowed with $# or $?"); 300 elst[ERR_DIGIT] = CSAVS(1, 83, "$?<digit> or $#<digit> not allowed"); 301 elst[ERR_VARILL] = CSAVS(1, 84, "Illegal variable name"); 302 elst[ERR_NLINDEX] = CSAVS(1, 85, "Newline in variable index"); 303 elst[ERR_EXPOVFL] = CSAVS(1, 86, "Expansion buffer overflow"); 304 elst[ERR_VARSYN] = CSAVS(1, 87, "Variable syntax"); 305 elst[ERR_BADBANG] = CSAVS(1, 88, "Bad ! form"); 306 elst[ERR_NOSUBST] = CSAVS(1, 89, "No previous substitute"); 307 elst[ERR_BADSUBST] = CSAVS(1, 90, "Bad substitute"); 308 elst[ERR_LHS] = CSAVS(1, 91, "No previous left hand side"); 309 elst[ERR_RHSLONG] = CSAVS(1, 92, "Right hand side too long"); 310 elst[ERR_BADBANGMOD] = CSAVS(1, 93, "Bad ! modifier: '%c'"); 311 elst[ERR_MODFAIL] = CSAVS(1, 94, "Modifier failed"); 312 elst[ERR_SUBOVFL] = CSAVS(1, 95, "Substitution buffer overflow"); 313 elst[ERR_BADBANGARG] = CSAVS(1, 96, "Bad ! arg selector"); 314 elst[ERR_NOSEARCH] = CSAVS(1, 97, "No prev search"); 315 elst[ERR_NOEVENT] = CSAVS(1, 98, "%s: Event not found"); 316 elst[ERR_TOOMANYRP] = CSAVS(1, 99, "Too many )'s"); 317 elst[ERR_TOOMANYLP] = CSAVS(1, 100, "Too many ('s"); 318 elst[ERR_BADPLP] = CSAVS(1, 101, "Badly placed ("); 319 elst[ERR_MISRED] = CSAVS(1, 102, "Missing name for redirect"); 320 elst[ERR_OUTRED] = CSAVS(1, 103, "Ambiguous output redirect"); 321 elst[ERR_REDPAR] = CSAVS(1, 104, "Can't << within ()'s"); 322 elst[ERR_INRED] = CSAVS(1, 105, "Ambiguous input redirect"); 323 elst[ERR_BADPLPS] = CSAVS(1, 106, "Badly placed ()'s"); 324 elst[ERR_ALIASLOOP] = CSAVS(1, 107, "Alias loop"); 325 elst[ERR_NOWATCH] = CSAVS(1, 108, "No $watch variable set"); 326 elst[ERR_NOSCHED] = CSAVS(1, 109, "No scheduled events"); 327 elst[ERR_SCHEDUSAGE] = CSAVS(1, 110, 328 "Usage: sched -<item#>.\nUsage: sched [+]hh:mm <command>"); 329 elst[ERR_SCHEDEV] = CSAVS(1, 111, "Not that many scheduled events"); 330 elst[ERR_SCHEDCOM] = CSAVS(1, 112, "No command to run"); 331 elst[ERR_SCHEDTIME] = CSAVS(1, 113, "Invalid time for event"); 332 elst[ERR_SCHEDREL] = CSAVS(1, 114, "Relative time inconsistent with am/pm"); 333 elst[ERR_TCNOSTR] = CSAVS(1, 115, "Out of termcap string space"); 334 elst[ERR_SETTCUS] = CSAVS(1, 116, "Usage: settc %s [yes|no]"); 335 elst[ERR_TCCAP] = CSAVS(1, 117, "Unknown capability `%s'"); 336 elst[ERR_TCPARM] = CSAVS(1, 118, "Unknown termcap parameter '%%%c'"); 337 elst[ERR_TCARGS] = CSAVS(1, 119, "Too many arguments for `%s' (%d)"); 338 elst[ERR_TCNARGS] = CSAVS(1, 120, "`%s' requires %d arguments"); 339 elst[ERR_TCUSAGE] = CSAVS(1, 121, 340 "Usage: echotc [-v|-s] [<capability> [<args>]]"); 341 elst[ERR_ARCH] = CSAVS(1, 122, "%s: %s. Binary file not executable"); 342 elst[ERR_HISTLOOP] = CSAVS(1, 123, "!# History loop"); 343 elst[ERR_FILEINQ] = CSAVS(1, 124, "Malformed file inquiry"); 344 elst[ERR_SELOVFL] = CSAVS(1, 125, "Selector overflow"); 345 #ifdef apollo 346 elst[ERR_TCSHUSAGE] = CSAVS(1, 126, 347 "Unknown option: `-%s'\nUsage: %s [ -bcdefilmnqstvVxX -Dname[=value] ] [ argument ... ]"); 348 #else /* !apollo */ 349 # ifdef convex 350 elst[ERR_TCSHUSAGE] = CSAVS(1, 127, 351 "Unknown option: `-%s'\nUsage: %s [ -bcdefFilmnqstvVxX ] [ argument ... ]"); 352 # else /* rest */ 353 elst[ERR_TCSHUSAGE] = CSAVS(1, 128, 354 "Unknown option: `-%s'\nUsage: %s [ -bcdefilmnqstvVxX ] [ argument ... ]"); 355 # endif /* convex */ 356 #endif /* apollo */ 357 elst[ERR_COMPCOM] = CSAVS(1, 129, "\nInvalid completion: \"%s\""); 358 elst[ERR_COMPINV] = CSAVS(1, 130, "\nInvalid %s: '%c'"); 359 elst[ERR_COMPMIS] = CSAVS(1, 131, 360 "\nMissing separator '%c' after %s \"%s\""); 361 elst[ERR_COMPINC] = CSAVS(1, 132, "\nIncomplete %s: \"%s\""); 362 elst[ERR_MFLAG] = CSAVS(1, 133, "No operand for -m flag"); 363 elst[ERR_ULIMUS] = CSAVS(1, 134, "Usage: unlimit [-fh] [limits]"); 364 elst[ERR_READONLY] = CSAVS(1, 135, "$%S is read-only"); 365 elst[ERR_BADJOB] = CSAVS(1, 136, "No such job (badjob)"); 366 elst[ERR_BADCOLORVAR] = CSAVS(1, 137, "Unknown colorls variable '%c%c'"); 367 elst[ERR_EOF] = CSAVS(1, 138, "Unexpected end of file"); 368 } 369 370 /* Cleanup data. */ 371 struct cleanup_entry 372 { 373 void *var; 374 void (*fn) (void *); 375 #ifdef CLEANUP_DEBUG 376 const char *file; 377 size_t line; 378 #endif 379 }; 380 381 static struct cleanup_entry *cleanup_stack INIT_ZERO; /* = NULL; */ 382 static size_t cleanup_sp INIT_ZERO; /* = 0; Next free entry */ 383 static size_t cleanup_mark INIT_ZERO; /* = 0; Last entry to handle before unwinding */ 384 static size_t cleanup_stack_size INIT_ZERO; /* = 0 */ 385 386 /* fn() will be run with all signals blocked, so it should not do anything 387 risky. */ 388 void 389 cleanup_push_internal(void *var, void (*fn) (void *) 390 #ifdef CLEANUP_DEBUG 391 , const char *file, size_t line 392 #endif 393 ) 394 { 395 struct cleanup_entry *ce; 396 397 if (cleanup_sp == cleanup_stack_size) { 398 if (cleanup_stack_size == 0) 399 cleanup_stack_size = 64; /* Arbitrary */ 400 else 401 cleanup_stack_size *= 2; 402 cleanup_stack = xrealloc(cleanup_stack, 403 cleanup_stack_size * sizeof (*cleanup_stack)); 404 } 405 ce = cleanup_stack + cleanup_sp; 406 ce->var = var; 407 ce->fn = fn; 408 #ifdef CLEANUP_DEBUG 409 ce->file = file; 410 ce->line = line; 411 #endif 412 cleanup_sp++; 413 } 414 415 static void 416 cleanup_ignore_fn(void *dummy) 417 { 418 USE(dummy); 419 } 420 421 void 422 cleanup_ignore(void *var) 423 { 424 struct cleanup_entry *ce; 425 426 ce = cleanup_stack + cleanup_sp; 427 while (ce != cleanup_stack) { 428 ce--; 429 if (ce->var == var) { 430 ce->fn = cleanup_ignore_fn; 431 return; 432 } 433 } 434 abort(); 435 } 436 437 void 438 cleanup_until(void *last_var) 439 { 440 while (cleanup_sp != 0) { 441 struct cleanup_entry ce; 442 443 cleanup_sp--; 444 ce = cleanup_stack[cleanup_sp]; 445 ce.fn(ce.var); 446 if (ce.var == last_var) 447 return; 448 } 449 abort(); 450 } 451 452 int 453 cleanup_reset(void) 454 { 455 return cleanup_sp > cleanup_mark; 456 } 457 458 void 459 cleanup_until_mark(void) 460 { 461 while (cleanup_sp > cleanup_mark) { 462 struct cleanup_entry ce; 463 464 cleanup_sp--; 465 ce = cleanup_stack[cleanup_sp]; 466 ce.fn(ce.var); 467 } 468 } 469 470 size_t 471 cleanup_push_mark(void) 472 { 473 size_t old_mark; 474 475 old_mark = cleanup_mark; 476 cleanup_mark = cleanup_sp; 477 return old_mark; 478 } 479 480 void 481 cleanup_pop_mark(size_t mark) 482 { 483 assert (mark <= cleanup_sp); 484 cleanup_mark = mark; 485 } 486 487 void 488 sigint_cleanup(void *xsa) 489 { 490 const struct sigaction *sa; 491 492 sa = xsa; 493 sigaction(SIGINT, sa, NULL); 494 } 495 496 void 497 sigprocmask_cleanup(void *xmask) 498 { 499 sigset_t *mask; 500 501 mask = xmask; 502 sigprocmask(SIG_SETMASK, mask, NULL); 503 } 504 505 void 506 open_cleanup(void *xptr) 507 { 508 int *ptr; 509 510 ptr = xptr; 511 xclose(*ptr); 512 } 513 514 void 515 opendir_cleanup(void *xdir) 516 { 517 DIR *dir; 518 519 dir = xdir; 520 xclosedir(dir); 521 } 522 523 void 524 xfree_indirect(void *xptr) 525 { 526 void **ptr; /* This is actually type punning :( */ 527 528 ptr = xptr; 529 xfree(*ptr); 530 } 531 532 void 533 reset(void) 534 { 535 cleanup_until_mark(); 536 _reset(); 537 abort(); 538 } 539 540 /* 541 * The parser and scanner set up errors for later by calling seterr, 542 * which sets the variable err as a side effect; later to be tested, 543 * e.g. in process. 544 */ 545 void 546 /*VARARGS1*/ 547 seterror(unsigned int id, ...) 548 { 549 if (seterr == 0) { 550 va_list va; 551 552 va_start(va, id); 553 if (id >= sizeof(elst) / sizeof(elst[0])) 554 id = ERR_INVALID; 555 seterr = xvasprintf(elst[id], va); 556 va_end(va); 557 } 558 } 559 560 void 561 fixerror(void) 562 { 563 didfds = 0; /* Forget about 0,1,2 */ 564 /* 565 * Go away if -e or we are a child shell 566 */ 567 if (!exitset || exiterr || child) 568 xexit(1); 569 570 /* 571 * Reset the state of the input. This buffered seek to end of file will 572 * also clear the while/foreach stack. 573 */ 574 btoeof(); 575 576 setstatus(1); 577 #ifdef BSDJOBS 578 if (tpgrp > 0) 579 (void) tcsetpgrp(FSHTTY, tpgrp); 580 #endif 581 } 582 583 /* 584 * Print the error with the given id. 585 * 586 * Special ids: 587 * ERR_SILENT: Print nothing. 588 * ERR_OLD: Print the previously set error 589 * ERR_NAME: If this bit is set, print the name of the function 590 * in bname 591 * 592 * This routine always resets or exits. The flag haderr 593 * is set so the routine who catches the unwind can propogate 594 * it if they want. 595 * 596 * Note that any open files at the point of error will eventually 597 * be closed in the routine process in sh.c which is the only 598 * place error unwinds are ever caught. 599 */ 600 void 601 /*VARARGS*/ 602 stderror(unsigned int id, ...) 603 { 604 va_list va; 605 int flags; 606 607 va_start(va, id); 608 609 /* 610 * Reset don't free flag for buggy os's 611 */ 612 dont_free = 0; 613 614 flags = (int) id & ERR_FLAGS; 615 id &= ~ERR_FLAGS; 616 617 /* Pyramid's OS/x has a subtle bug in <varargs.h> which prevents calling 618 * va_end more than once in the same function. -- sterling@netcom.com 619 */ 620 assert(!((flags & ERR_OLD) && seterr == NULL)); 621 622 if (id >= sizeof(elst) / sizeof(elst[0])) 623 id = ERR_INVALID; 624 625 if (!(flags & ERR_SILENT)) { 626 /* 627 * Must flush before we print as we wish output before the error 628 * to go on (some form of) standard output, while output after 629 * goes on (some form of) diagnostic output. If didfds then output 630 * will go to 1/2 else to FSHOUT/FSHDIAG. See flush in sh.print.c. 631 */ 632 flush();/*FIXRESET*/ 633 haderr = 1; /* Now to diagnostic output */ 634 if (enterhist) 635 xprintf("Can't load history: ");/*FIXRESET*/ 636 if (flags & ERR_NAME) 637 xprintf("%s: ", bname);/*FIXRESET*/ 638 if ((flags & ERR_OLD)) { 639 /* Old error. */ 640 xprintf("%s.\n", seterr);/*FIXRESET*/ 641 } else { 642 xvprintf(elst[id], va);/*FIXRESET*/ 643 xprintf(".\n");/*FIXRESET*/ 644 } 645 } 646 va_end(va); 647 648 if (seterr) { 649 xfree(seterr); 650 seterr = NULL; 651 } 652 653 fixerror(); 654 655 reset(); /* Unwind */ 656 } 657