1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.err.c,v 3.57 2015/05/26 17:32:45 christos Exp $ */ 2 /* 3 * sh.err.c: Error printing routines. 4 */ 5 /*- 6 * Copyright (c) 1980, 1991 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 #define _h_sh_err /* Don't redefine the errors */ 34 #include "sh.h" 35 #include <assert.h> 36 37 RCSID("$tcsh: sh.err.c,v 3.57 2015/05/26 17:32:45 christos Exp $") 38 39 /* 40 * C Shell 41 */ 42 43 #ifdef lint 44 #undef va_arg 45 #define va_arg(a, b) (a ? (b) 0 : (b) 0) 46 #endif 47 48 char *seterr = NULL; /* Holds last error if there was one */ 49 50 #define ERR_FLAGS 0xf0000000 51 #define ERR_NAME 0x10000000 52 #define ERR_SILENT 0x20000000 53 #define ERR_OLD 0x40000000 54 #define ERR_INTERRUPT 0x80000000 55 56 #define ERR_SYNTAX 0 57 #define ERR_NOTALLOWED 1 58 #define ERR_WTOOLONG 2 59 #define ERR_LTOOLONG 3 60 #define ERR_DOLZERO 4 61 #define ERR_INCBR 5 62 #define ERR_EXPORD 6 63 #define ERR_BADMOD 7 64 #define ERR_SUBSCRIPT 8 65 #define ERR_BADNUM 9 66 #define ERR_NOMORE 10 67 #define ERR_FILENAME 11 68 #define ERR_GLOB 12 69 #define ERR_COMMAND 13 70 #define ERR_TOOFEW 14 71 #define ERR_TOOMANY 15 72 #define ERR_DANGER 16 73 #define ERR_EMPTYIF 17 74 #define ERR_IMPRTHEN 18 75 #define ERR_NOPAREN 19 76 #define ERR_NOTFOUND 20 77 #define ERR_MASK 21 78 #define ERR_LIMIT 22 79 #define ERR_TOOLARGE 23 80 #define ERR_SCALEF 24 81 #define ERR_UNDVAR 25 82 #define ERR_DEEP 26 83 #define ERR_BADSIG 27 84 #define ERR_UNKSIG 28 85 #define ERR_VARBEGIN 29 86 #define ERR_VARTOOLONG 30 87 #define ERR_VARALNUM 31 88 #define ERR_JOBCONTROL 32 89 #define ERR_EXPRESSION 33 90 #define ERR_NOHOMEDIR 34 91 #define ERR_CANTCHANGE 35 92 #define ERR_NULLCOM 36 93 #define ERR_ASSIGN 37 94 #define ERR_UNKNOWNOP 38 95 #define ERR_AMBIG 39 96 #define ERR_EXISTS 40 97 #define ERR_ARGC 41 98 #define ERR_INTR 42 99 #define ERR_RANGE 43 100 #define ERR_OVERFLOW 44 101 #define ERR_NOSUCHJOB 45 102 #define ERR_TERMINAL 46 103 #define ERR_NOTWHILE 47 104 #define ERR_NOPROC 48 105 #define ERR_NOMATCH 49 106 #define ERR_MISSING 50 107 #define ERR_UNMATCHED 51 108 #define ERR_NOMEM 52 109 #define ERR_PIPE 53 110 #define ERR_SYSTEM 54 111 #define ERR_STRING 55 112 #define ERR_JOBS 56 113 #define ERR_JOBARGS 57 114 #define ERR_JOBCUR 58 115 #define ERR_JOBPREV 59 116 #define ERR_JOBPAT 60 117 #define ERR_NESTING 61 118 #define ERR_JOBCTRLSUB 62 119 #define ERR_SYNC 63 120 #define ERR_STOPPED 64 121 #define ERR_NODIR 65 122 #define ERR_EMPTY 66 123 #define ERR_BADDIR 67 124 #define ERR_DIRUS 68 125 #define ERR_HFLAG 69 126 #define ERR_NOTLOGIN 70 127 #define ERR_DIV0 71 128 #define ERR_MOD0 72 129 #define ERR_BADSCALE 73 130 #define ERR_SUSPLOG 74 131 #define ERR_UNKUSER 75 132 #define ERR_NOHOME 76 133 #define ERR_HISTUS 77 134 #define ERR_SPDOLLT 78 135 #define ERR_NEWLINE 79 136 #define ERR_SPSTAR 80 137 #define ERR_DIGIT 81 138 #define ERR_VARILL 82 139 #define ERR_NLINDEX 83 140 #define ERR_EXPOVFL 84 141 #define ERR_VARSYN 85 142 #define ERR_BADBANG 86 143 #define ERR_NOSUBST 87 144 #define ERR_BADSUBST 88 145 #define ERR_LHS 89 146 #define ERR_RHSLONG 90 147 #define ERR_BADBANGMOD 91 148 #define ERR_MODFAIL 92 149 #define ERR_SUBOVFL 93 150 #define ERR_BADBANGARG 94 151 #define ERR_NOSEARCH 95 152 #define ERR_NOEVENT 96 153 #define ERR_TOOMANYRP 97 154 #define ERR_TOOMANYLP 98 155 #define ERR_BADPLP 99 156 #define ERR_MISRED 100 157 #define ERR_OUTRED 101 158 #define ERR_REDPAR 102 159 #define ERR_INRED 103 160 #define ERR_BADPLPS 104 161 #define ERR_ALIASLOOP 105 162 #define ERR_NOWATCH 106 163 #define ERR_NOSCHED 107 164 #define ERR_SCHEDUSAGE 108 165 #define ERR_SCHEDEV 109 166 #define ERR_SCHEDCOM 110 167 #define ERR_SCHEDTIME 111 168 #define ERR_SCHEDREL 112 169 #define ERR_TCNOSTR 113 170 #define ERR_SETTCUS 114 171 #define ERR_TCCAP 115 172 #define ERR_TCPARM 116 173 #define ERR_TCARGS 117 174 #define ERR_TCNARGS 118 175 #define ERR_TCUSAGE 119 176 #define ERR_ARCH 120 177 #define ERR_HISTLOOP 121 178 #define ERR_FILEINQ 122 179 #define ERR_SELOVFL 123 180 #define ERR_TCSHUSAGE 124 181 #define ERR_COMPCOM 125 182 #define ERR_COMPINV 126 183 #define ERR_COMPMIS 127 184 #define ERR_COMPINC 128 185 #define ERR_MFLAG 129 186 #define ERR_ULIMUS 130 187 #define ERR_READONLY 131 188 #define ERR_BADJOB 132 189 #define ERR_INVALID 133 190 #define ERR_BADCOLORVAR 134 191 #define ERR_EOF 135 192 #define NO_ERRORS 136 193 194 static const char *elst[NO_ERRORS] INIT_ZERO_STRUCT; 195 196 /* 197 * Init the elst depending on the locale 198 */ 199 void 200 errinit(void) 201 { 202 #ifdef NLS_CATALOGS 203 size_t i; 204 205 for (i = 0; i < NO_ERRORS; i++) 206 xfree((char *)(intptr_t)elst[i]); 207 # if defined(__FreeBSD__) || defined(hpux) || defined(__MidnightBSD__) 208 # define NLS_MAXSET 30 209 for (i = 1; i <= NLS_MAXSET; i++) 210 CGETS(i, 1, "" ); 211 # endif 212 #endif 213 214 elst[ERR_SYNTAX] = CSAVS(1, 1, "Syntax Error"); 215 elst[ERR_NOTALLOWED] = CSAVS(1, 2, "%s is not allowed"); 216 elst[ERR_WTOOLONG] = CSAVS(1, 3, "Word too long"); 217 elst[ERR_LTOOLONG] = CSAVS(1, 4, "$< line too long"); 218 elst[ERR_DOLZERO] = CSAVS(1, 5, "No file for $0"); 219 elst[ERR_INCBR] = CSAVS(1, 6, "Incomplete [] modifier"); 220 elst[ERR_EXPORD] = CSAVS(1, 7, "$ expansion must end before ]"); 221 elst[ERR_BADMOD] = CSAVS(1, 8, "Bad : modifier in $ '%c'"); 222 elst[ERR_SUBSCRIPT] = CSAVS(1, 9, "Subscript error"); 223 elst[ERR_BADNUM] = CSAVS(1, 10, "Badly formed number"); 224 elst[ERR_NOMORE] = CSAVS(1, 11, "No more words"); 225 elst[ERR_FILENAME] = CSAVS(1, 12, "Missing file name"); 226 elst[ERR_GLOB] = CSAVS(1, 13, "Internal glob error"); 227 elst[ERR_COMMAND] = CSAVS(1, 14, "Command not found"); 228 elst[ERR_TOOFEW] = CSAVS(1, 15, "Too few arguments"); 229 elst[ERR_TOOMANY] = CSAVS(1, 16, "Too many arguments"); 230 elst[ERR_DANGER] = CSAVS(1, 17, "Too dangerous to alias that"); 231 elst[ERR_EMPTYIF] = CSAVS(1, 18, "Empty if"); 232 elst[ERR_IMPRTHEN] = CSAVS(1, 19, "Improper then"); 233 elst[ERR_NOPAREN] = CSAVS(1, 20, "Words not parenthesized"); 234 elst[ERR_NOTFOUND] = CSAVS(1, 21, "%s not found"); 235 elst[ERR_MASK] = CSAVS(1, 22, "Improper mask"); 236 elst[ERR_LIMIT] = CSAVS(1, 23, "No such limit"); 237 elst[ERR_TOOLARGE] = CSAVS(1, 24, "Argument too large"); 238 elst[ERR_SCALEF] = CSAVS(1, 25, "Improper or unknown scale factor"); 239 elst[ERR_UNDVAR] = CSAVS(1, 26, "Undefined variable"); 240 elst[ERR_DEEP] = CSAVS(1, 27, "Directory stack not that deep"); 241 elst[ERR_BADSIG] = CSAVS(1, 28, "Bad signal number"); 242 elst[ERR_UNKSIG] = CSAVS(1, 29, "Unknown signal; kill -l lists signals"); 243 elst[ERR_VARBEGIN] = CSAVS(1, 30, "Variable name must begin with a letter"); 244 elst[ERR_VARTOOLONG] = CSAVS(1, 31, "Variable name too long"); 245 elst[ERR_VARALNUM] = CSAVS(1, 32, 246 "Variable name must contain alphanumeric characters"); 247 elst[ERR_JOBCONTROL] = CSAVS(1, 33, "No job control in this shell"); 248 elst[ERR_EXPRESSION] = CSAVS(1, 34, "Expression Syntax"); 249 elst[ERR_NOHOMEDIR] = CSAVS(1, 35, "No home directory"); 250 elst[ERR_CANTCHANGE] = CSAVS(1, 36, "Can't change to home directory"); 251 elst[ERR_NULLCOM] = CSAVS(1, 37, "Invalid null command"); 252 elst[ERR_ASSIGN] = CSAVS(1, 38, "Assignment missing expression"); 253 elst[ERR_UNKNOWNOP] = CSAVS(1, 39, "Unknown operator"); 254 elst[ERR_AMBIG] = CSAVS(1, 40, "Ambiguous"); 255 elst[ERR_EXISTS] = CSAVS(1, 41, "%s: File exists"); 256 elst[ERR_ARGC] = CSAVS(1, 42, "Argument for -c ends in backslash"); 257 elst[ERR_INTR] = CSAVS(1, 43, "Interrupted"); 258 elst[ERR_RANGE] = CSAVS(1, 44, "Subscript out of range"); 259 elst[ERR_OVERFLOW] = CSAVS(1, 45, "Line overflow"); 260 elst[ERR_NOSUCHJOB] = CSAVS(1, 46, "No such job"); 261 elst[ERR_TERMINAL] = CSAVS(1, 47, "Can't from terminal"); 262 elst[ERR_NOTWHILE] = CSAVS(1, 48, "Not in while/foreach"); 263 elst[ERR_NOPROC] = CSAVS(1, 49, "No more processes"); 264 elst[ERR_NOMATCH] = CSAVS(1, 50, "No match"); 265 elst[ERR_MISSING] = CSAVS(1, 51, "Missing '%c'"); 266 elst[ERR_UNMATCHED] = CSAVS(1, 52, "Unmatched '%c'"); 267 elst[ERR_NOMEM] = CSAVS(1, 53, "Out of memory"); 268 elst[ERR_PIPE] = CSAVS(1, 54, "Can't make pipe"); 269 elst[ERR_SYSTEM] = CSAVS(1, 55, "%s: %s"); 270 elst[ERR_STRING] = CSAVS(1, 56, "%s"); 271 elst[ERR_JOBS] = CSAVS(1, 57, "Usage: jobs [ -l ]"); 272 elst[ERR_JOBARGS] = CSAVS(1, 58, "Arguments should be jobs or process id's"); 273 elst[ERR_JOBCUR] = CSAVS(1, 59, "No current job"); 274 elst[ERR_JOBPREV] = CSAVS(1, 60, "No previous job"); 275 elst[ERR_JOBPAT] = CSAVS(1, 61, "No job matches pattern"); 276 elst[ERR_NESTING] = CSAVS(1, 62, "Fork nesting > %d; maybe `...` loop"); 277 elst[ERR_JOBCTRLSUB] = CSAVS(1, 63, "No job control in subshells"); 278 elst[ERR_SYNC] = CSAVS(1, 64, "Sync fault: Process %d not found"); 279 elst[ERR_STOPPED] = 280 #ifdef SUSPENDED 281 CSAVS(1, 65, "%sThere are suspended jobs"); 282 #else 283 CSAVS(1, 66, "%sThere are stopped jobs"); 284 #endif /* SUSPENDED */ 285 elst[ERR_NODIR] = CSAVS(1, 67, "No other directory"); 286 elst[ERR_EMPTY] = CSAVS(1, 68, "Directory stack empty"); 287 elst[ERR_BADDIR] = CSAVS(1, 69, "Bad directory"); 288 elst[ERR_DIRUS] = CSAVS(1, 70, "Usage: %s [-%s]%s"); 289 elst[ERR_HFLAG] = CSAVS(1, 71, "No operand for -h flag"); 290 elst[ERR_NOTLOGIN] = CSAVS(1, 72, "Not a login shell"); 291 elst[ERR_DIV0] = CSAVS(1, 73, "Division by 0"); 292 elst[ERR_MOD0] = CSAVS(1, 74, "Mod by 0"); 293 elst[ERR_BADSCALE] = CSAVS(1, 75, "Bad scaling; did you mean \"%s\"?"); 294 elst[ERR_SUSPLOG] = CSAVS(1, 76, "Can't suspend a login shell (yet)"); 295 elst[ERR_UNKUSER] = CSAVS(1, 77, "Unknown user: %s"); 296 elst[ERR_NOHOME] = CSAVS(1, 78, "No $home variable set"); 297 elst[ERR_HISTUS] = CSAVS(1, 79, 298 "Usage: history [-%s] [# number of events]"); 299 elst[ERR_SPDOLLT] = CSAVS(1, 80, "$, ! or < not allowed with $# or $?"); 300 elst[ERR_NEWLINE] = CSAVS(1, 81, "Newline in variable name"); 301 elst[ERR_SPSTAR] = CSAVS(1, 82, "* not allowed with $# or $?"); 302 elst[ERR_DIGIT] = CSAVS(1, 83, "$?<digit> or $#<digit> not allowed"); 303 elst[ERR_VARILL] = CSAVS(1, 84, "Illegal variable name"); 304 elst[ERR_NLINDEX] = CSAVS(1, 85, "Newline in variable index"); 305 elst[ERR_EXPOVFL] = CSAVS(1, 86, "Expansion buffer overflow"); 306 elst[ERR_VARSYN] = CSAVS(1, 87, "Variable syntax"); 307 elst[ERR_BADBANG] = CSAVS(1, 88, "Bad ! form"); 308 elst[ERR_NOSUBST] = CSAVS(1, 89, "No previous substitute"); 309 elst[ERR_BADSUBST] = CSAVS(1, 90, "Bad substitute"); 310 elst[ERR_LHS] = CSAVS(1, 91, "No previous left hand side"); 311 elst[ERR_RHSLONG] = CSAVS(1, 92, "Right hand side too long"); 312 elst[ERR_BADBANGMOD] = CSAVS(1, 93, "Bad ! modifier: '%c'"); 313 elst[ERR_MODFAIL] = CSAVS(1, 94, "Modifier failed"); 314 elst[ERR_SUBOVFL] = CSAVS(1, 95, "Substitution buffer overflow"); 315 elst[ERR_BADBANGARG] = CSAVS(1, 96, "Bad ! arg selector"); 316 elst[ERR_NOSEARCH] = CSAVS(1, 97, "No prev search"); 317 elst[ERR_NOEVENT] = CSAVS(1, 98, "%s: Event not found"); 318 elst[ERR_TOOMANYRP] = CSAVS(1, 99, "Too many )'s"); 319 elst[ERR_TOOMANYLP] = CSAVS(1, 100, "Too many ('s"); 320 elst[ERR_BADPLP] = CSAVS(1, 101, "Badly placed ("); 321 elst[ERR_MISRED] = CSAVS(1, 102, "Missing name for redirect"); 322 elst[ERR_OUTRED] = CSAVS(1, 103, "Ambiguous output redirect"); 323 elst[ERR_REDPAR] = CSAVS(1, 104, "Can't << within ()'s"); 324 elst[ERR_INRED] = CSAVS(1, 105, "Ambiguous input redirect"); 325 elst[ERR_BADPLPS] = CSAVS(1, 106, "Badly placed ()'s"); 326 elst[ERR_ALIASLOOP] = CSAVS(1, 107, "Alias loop"); 327 elst[ERR_NOWATCH] = CSAVS(1, 108, "No $watch variable set"); 328 elst[ERR_NOSCHED] = CSAVS(1, 109, "No scheduled events"); 329 elst[ERR_SCHEDUSAGE] = CSAVS(1, 110, 330 "Usage: sched -<item#>.\nUsage: sched [+]hh:mm <command>"); 331 elst[ERR_SCHEDEV] = CSAVS(1, 111, "Not that many scheduled events"); 332 elst[ERR_SCHEDCOM] = CSAVS(1, 112, "No command to run"); 333 elst[ERR_SCHEDTIME] = CSAVS(1, 113, "Invalid time for event"); 334 elst[ERR_SCHEDREL] = CSAVS(1, 114, "Relative time inconsistent with am/pm"); 335 elst[ERR_TCNOSTR] = CSAVS(1, 115, "Out of termcap string space"); 336 elst[ERR_SETTCUS] = CSAVS(1, 116, "Usage: settc %s [yes|no]"); 337 elst[ERR_TCCAP] = CSAVS(1, 117, "Unknown capability `%s'"); 338 elst[ERR_TCPARM] = CSAVS(1, 118, "Unknown termcap parameter '%%%c'"); 339 elst[ERR_TCARGS] = CSAVS(1, 119, "Too many arguments for `%s' (%d)"); 340 elst[ERR_TCNARGS] = CSAVS(1, 120, "`%s' requires %d arguments"); 341 elst[ERR_TCUSAGE] = CSAVS(1, 121, 342 "Usage: echotc [-v|-s] [<capability> [<args>]]"); 343 elst[ERR_ARCH] = CSAVS(1, 122, "%s: %s. Binary file not executable"); 344 elst[ERR_HISTLOOP] = CSAVS(1, 123, "!# History loop"); 345 elst[ERR_FILEINQ] = CSAVS(1, 124, "Malformed file inquiry"); 346 elst[ERR_SELOVFL] = CSAVS(1, 125, "Selector overflow"); 347 #ifdef apollo 348 elst[ERR_TCSHUSAGE] = CSAVS(1, 126, 349 "Unknown option: `-%s'\nUsage: %s [ -bcdefilmnqstvVxX -Dname[=value] ] [ argument ... ]"); 350 #else /* !apollo */ 351 # ifdef convex 352 elst[ERR_TCSHUSAGE] = CSAVS(1, 127, 353 "Unknown option: `-%s'\nUsage: %s [ -bcdefFilmnqstvVxX ] [ argument ... ]"); 354 # else /* rest */ 355 elst[ERR_TCSHUSAGE] = CSAVS(1, 128, 356 "Unknown option: `-%s'\nUsage: %s [ -bcdefilmnqstvVxX ] [ argument ... ]"); 357 # endif /* convex */ 358 #endif /* apollo */ 359 elst[ERR_COMPCOM] = CSAVS(1, 129, "\nInvalid completion: \"%s\""); 360 elst[ERR_COMPINV] = CSAVS(1, 130, "\nInvalid %s: '%c'"); 361 elst[ERR_COMPMIS] = CSAVS(1, 131, 362 "\nMissing separator '%c' after %s \"%s\""); 363 elst[ERR_COMPINC] = CSAVS(1, 132, "\nIncomplete %s: \"%s\""); 364 elst[ERR_MFLAG] = CSAVS(1, 133, "No operand for -m flag"); 365 elst[ERR_ULIMUS] = CSAVS(1, 134, "Usage: unlimit [-fh] [limits]"); 366 elst[ERR_READONLY] = CSAVS(1, 135, "$%S is read-only"); 367 elst[ERR_BADJOB] = CSAVS(1, 136, "No such job (badjob)"); 368 elst[ERR_BADCOLORVAR] = CSAVS(1, 137, "Unknown colorls variable '%c%c'"); 369 elst[ERR_EOF] = CSAVS(1, 138, "Unexpected end of file"); 370 } 371 372 /* Cleanup data. */ 373 struct cleanup_entry 374 { 375 void *var; 376 void (*fn) (void *); 377 #ifdef CLEANUP_DEBUG 378 const char *file; 379 size_t line; 380 #endif 381 }; 382 383 static struct cleanup_entry *cleanup_stack INIT_ZERO; /* = NULL; */ 384 static size_t cleanup_sp INIT_ZERO; /* = 0; Next free entry */ 385 static size_t cleanup_mark INIT_ZERO; /* = 0; Last entry to handle before unwinding */ 386 static size_t cleanup_stack_size INIT_ZERO; /* = 0 */ 387 388 /* fn() will be run with all signals blocked, so it should not do anything 389 risky. */ 390 void 391 cleanup_push_internal(void *var, void (*fn) (void *) 392 #ifdef CLEANUP_DEBUG 393 , const char *file, size_t line 394 #endif 395 ) 396 { 397 struct cleanup_entry *ce; 398 399 if (cleanup_sp == cleanup_stack_size) { 400 if (cleanup_stack_size == 0) 401 cleanup_stack_size = 64; /* Arbitrary */ 402 else 403 cleanup_stack_size *= 2; 404 cleanup_stack = xrealloc(cleanup_stack, 405 cleanup_stack_size * sizeof (*cleanup_stack)); 406 } 407 ce = cleanup_stack + cleanup_sp; 408 ce->var = var; 409 ce->fn = fn; 410 #ifdef CLEANUP_DEBUG 411 ce->file = file; 412 ce->line = line; 413 #endif 414 cleanup_sp++; 415 } 416 417 static void 418 cleanup_ignore_fn(void *dummy) 419 { 420 USE(dummy); 421 } 422 423 void 424 cleanup_ignore(void *var) 425 { 426 struct cleanup_entry *ce; 427 428 ce = cleanup_stack + cleanup_sp; 429 while (ce != cleanup_stack) { 430 ce--; 431 if (ce->var == var) { 432 ce->fn = cleanup_ignore_fn; 433 return; 434 } 435 } 436 abort(); 437 } 438 439 void 440 cleanup_until(void *last_var) 441 { 442 while (cleanup_sp != 0) { 443 struct cleanup_entry ce; 444 445 cleanup_sp--; 446 ce = cleanup_stack[cleanup_sp]; 447 ce.fn(ce.var); 448 if (ce.var == last_var) 449 return; 450 } 451 abort(); 452 } 453 454 int 455 cleanup_reset(void) 456 { 457 return cleanup_sp > cleanup_mark; 458 } 459 460 void 461 cleanup_until_mark(void) 462 { 463 while (cleanup_sp > cleanup_mark) { 464 struct cleanup_entry ce; 465 466 cleanup_sp--; 467 ce = cleanup_stack[cleanup_sp]; 468 ce.fn(ce.var); 469 } 470 } 471 472 size_t 473 cleanup_push_mark(void) 474 { 475 size_t old_mark; 476 477 old_mark = cleanup_mark; 478 cleanup_mark = cleanup_sp; 479 return old_mark; 480 } 481 482 void 483 cleanup_pop_mark(size_t mark) 484 { 485 assert (mark <= cleanup_sp); 486 cleanup_mark = mark; 487 } 488 489 void 490 sigint_cleanup(void *xsa) 491 { 492 const struct sigaction *sa; 493 494 sa = xsa; 495 sigaction(SIGINT, sa, NULL); 496 } 497 498 void 499 sigprocmask_cleanup(void *xmask) 500 { 501 sigset_t *mask; 502 503 mask = xmask; 504 sigprocmask(SIG_SETMASK, mask, NULL); 505 } 506 507 void 508 open_cleanup(void *xptr) 509 { 510 int *ptr; 511 512 ptr = xptr; 513 xclose(*ptr); 514 } 515 516 void 517 opendir_cleanup(void *xdir) 518 { 519 DIR *dir; 520 521 dir = xdir; 522 xclosedir(dir); 523 } 524 525 void 526 xfree_indirect(void *xptr) 527 { 528 void **ptr; /* This is actually type punning :( */ 529 530 ptr = xptr; 531 xfree(*ptr); 532 } 533 534 void 535 reset(void) 536 { 537 cleanup_until_mark(); 538 _reset(); 539 abort(); 540 } 541 542 /* 543 * The parser and scanner set up errors for later by calling seterr, 544 * which sets the variable err as a side effect; later to be tested, 545 * e.g. in process. 546 */ 547 void 548 /*VARARGS1*/ 549 seterror(unsigned int id, ...) 550 { 551 if (seterr == 0) { 552 va_list va; 553 554 va_start(va, id); 555 if (id >= sizeof(elst) / sizeof(elst[0])) 556 id = ERR_INVALID; 557 seterr = xvasprintf(elst[id], va); 558 va_end(va); 559 } 560 } 561 562 void 563 fixerror(void) 564 { 565 didfds = 0; /* Forget about 0,1,2 */ 566 /* 567 * Go away if -e or we are a child shell 568 */ 569 if (!exitset || exiterr || child) 570 xexit(1); 571 572 /* 573 * Reset the state of the input. This buffered seek to end of file will 574 * also clear the while/foreach stack. 575 */ 576 btoeof(); 577 578 setcopy(STRstatus, STR1, VAR_READWRITE);/*FIXRESET*/ 579 #ifdef BSDJOBS 580 if (tpgrp > 0) 581 (void) tcsetpgrp(FSHTTY, tpgrp); 582 #endif 583 } 584 585 /* 586 * Print the error with the given id. 587 * 588 * Special ids: 589 * ERR_SILENT: Print nothing. 590 * ERR_OLD: Print the previously set error 591 * ERR_NAME: If this bit is set, print the name of the function 592 * in bname 593 * 594 * This routine always resets or exits. The flag haderr 595 * is set so the routine who catches the unwind can propogate 596 * it if they want. 597 * 598 * Note that any open files at the point of error will eventually 599 * be closed in the routine process in sh.c which is the only 600 * place error unwinds are ever caught. 601 */ 602 void 603 /*VARARGS*/ 604 stderror(unsigned int id, ...) 605 { 606 va_list va; 607 int flags; 608 609 va_start(va, id); 610 611 /* 612 * Reset don't free flag for buggy os's 613 */ 614 dont_free = 0; 615 616 flags = (int) id & ERR_FLAGS; 617 id &= ~ERR_FLAGS; 618 619 /* Pyramid's OS/x has a subtle bug in <varargs.h> which prevents calling 620 * va_end more than once in the same function. -- sterling@netcom.com 621 */ 622 assert(!((flags & ERR_OLD) && seterr == NULL)); 623 624 if (id >= sizeof(elst) / sizeof(elst[0])) 625 id = ERR_INVALID; 626 627 if (!(flags & ERR_SILENT)) { 628 /* 629 * Must flush before we print as we wish output before the error 630 * to go on (some form of) standard output, while output after 631 * goes on (some form of) diagnostic output. If didfds then output 632 * will go to 1/2 else to FSHOUT/FSHDIAG. See flush in sh.print.c. 633 */ 634 flush();/*FIXRESET*/ 635 haderr = 1; /* Now to diagnostic output */ 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