1 |
|
|
/* $OpenBSD: error.c,v 1.12 2015/12/26 13:48:38 mestre Exp $ */ |
2 |
|
|
/* $NetBSD: err.c,v 1.6 1995/03/21 09:02:47 cgd Exp $ */ |
3 |
|
|
|
4 |
|
|
/*- |
5 |
|
|
* Copyright (c) 1980, 1991, 1993 |
6 |
|
|
* The Regents of the University of California. 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 |
|
|
|
33 |
|
|
#include <sys/types.h> |
34 |
|
|
#include <stdlib.h> |
35 |
|
|
#include <unistd.h> |
36 |
|
|
#include <stdarg.h> |
37 |
|
|
|
38 |
|
|
#include "csh.h" |
39 |
|
|
#include "extern.h" |
40 |
|
|
|
41 |
|
|
char *seterr = NULL; /* Holds last error if there was one */ |
42 |
|
|
|
43 |
|
|
#define ERR_FLAGS 0xf0000000 |
44 |
|
|
#define ERR_NAME 0x10000000 |
45 |
|
|
#define ERR_SILENT 0x20000000 |
46 |
|
|
#define ERR_OLD 0x40000000 |
47 |
|
|
|
48 |
|
|
static char *errorlist[] = |
49 |
|
|
{ |
50 |
|
|
#define ERR_SYNTAX 0 |
51 |
|
|
"Syntax Error", |
52 |
|
|
#define ERR_NOTALLOWED 1 |
53 |
|
|
"%s is not allowed", |
54 |
|
|
#define ERR_WTOOLONG 2 |
55 |
|
|
"Word too long", |
56 |
|
|
#define ERR_LTOOLONG 3 |
57 |
|
|
"$< line too long", |
58 |
|
|
#define ERR_DOLZERO 4 |
59 |
|
|
"No file for $0", |
60 |
|
|
#define ERR_DOLQUEST 5 |
61 |
|
|
"$? not allowed here", |
62 |
|
|
#define ERR_INCBR 6 |
63 |
|
|
"Incomplete [] modifier", |
64 |
|
|
#define ERR_EXPORD 7 |
65 |
|
|
"$ expansion must end before ]", |
66 |
|
|
#define ERR_BADMOD 8 |
67 |
|
|
"Bad : modifier in $ (%c)", |
68 |
|
|
#define ERR_SUBSCRIPT 9 |
69 |
|
|
"Subscript error", |
70 |
|
|
#define ERR_BADNUM 10 |
71 |
|
|
"Badly formed number", |
72 |
|
|
#define ERR_NOMORE 11 |
73 |
|
|
"No more words", |
74 |
|
|
#define ERR_FILENAME 12 |
75 |
|
|
"Missing file name", |
76 |
|
|
#define ERR_GLOB 13 |
77 |
|
|
"Internal glob error", |
78 |
|
|
#define ERR_COMMAND 14 |
79 |
|
|
"Command not found", |
80 |
|
|
#define ERR_TOOFEW 15 |
81 |
|
|
"Too few arguments", |
82 |
|
|
#define ERR_TOOMANY 16 |
83 |
|
|
"Too many arguments", |
84 |
|
|
#define ERR_DANGER 17 |
85 |
|
|
"Too dangerous to alias that", |
86 |
|
|
#define ERR_EMPTYIF 18 |
87 |
|
|
"Empty if", |
88 |
|
|
#define ERR_IMPRTHEN 19 |
89 |
|
|
"Improper then", |
90 |
|
|
#define ERR_NOPAREN 20 |
91 |
|
|
"Words not parenthesized", |
92 |
|
|
#define ERR_NOTFOUND 21 |
93 |
|
|
"%s not found", |
94 |
|
|
#define ERR_MASK 22 |
95 |
|
|
"Improper mask", |
96 |
|
|
#define ERR_LIMIT 23 |
97 |
|
|
"No such limit", |
98 |
|
|
#define ERR_TOOLARGE 24 |
99 |
|
|
"Argument too large", |
100 |
|
|
#define ERR_SCALEF 25 |
101 |
|
|
"Improper or unknown scale factor", |
102 |
|
|
#define ERR_UNDVAR 26 |
103 |
|
|
"Undefined variable", |
104 |
|
|
#define ERR_DEEP 27 |
105 |
|
|
"Directory stack not that deep", |
106 |
|
|
#define ERR_BADSIG 28 |
107 |
|
|
"Bad signal number", |
108 |
|
|
#define ERR_UNKSIG 29 |
109 |
|
|
"Unknown signal; kill -l lists signals", |
110 |
|
|
#define ERR_VARBEGIN 30 |
111 |
|
|
"Variable name must begin with a letter", |
112 |
|
|
#define ERR_VARTOOLONG 31 |
113 |
|
|
"Variable name too long", |
114 |
|
|
#define ERR_VARALNUM 32 |
115 |
|
|
"Variable name must contain alphanumeric characters", |
116 |
|
|
#define ERR_JOBCONTROL 33 |
117 |
|
|
"No job control in this shell", |
118 |
|
|
#define ERR_EXPRESSION 34 |
119 |
|
|
"Expression Syntax", |
120 |
|
|
#define ERR_NOHOMEDIR 35 |
121 |
|
|
"No home directory", |
122 |
|
|
#define ERR_CANTCHANGE 36 |
123 |
|
|
"Can't change to home directory", |
124 |
|
|
#define ERR_NULLCOM 37 |
125 |
|
|
"Invalid null command", |
126 |
|
|
#define ERR_ASSIGN 38 |
127 |
|
|
"Assignment missing expression", |
128 |
|
|
#define ERR_UNKNOWNOP 39 |
129 |
|
|
"Unknown operator", |
130 |
|
|
#define ERR_AMBIG 40 |
131 |
|
|
"Ambiguous", |
132 |
|
|
#define ERR_EXISTS 41 |
133 |
|
|
"%s: File exists", |
134 |
|
|
#define ERR_INTR 42 |
135 |
|
|
"Interrupted", |
136 |
|
|
#define ERR_RANGE 43 |
137 |
|
|
"Subscript out of range", |
138 |
|
|
#define ERR_OVERFLOW 44 |
139 |
|
|
"Line overflow", |
140 |
|
|
#define ERR_VARMOD 45 |
141 |
|
|
"Unknown variable modifier", |
142 |
|
|
#define ERR_NOSUCHJOB 46 |
143 |
|
|
"No such job", |
144 |
|
|
#define ERR_TERMINAL 47 |
145 |
|
|
"Can't from terminal", |
146 |
|
|
#define ERR_NOTWHILE 48 |
147 |
|
|
"Not in while/foreach", |
148 |
|
|
#define ERR_NOPROC 49 |
149 |
|
|
"No more processes", |
150 |
|
|
#define ERR_NOMATCH 50 |
151 |
|
|
"No match", |
152 |
|
|
#define ERR_MISSING 51 |
153 |
|
|
"Missing %c", |
154 |
|
|
#define ERR_UNMATCHED 52 |
155 |
|
|
"Unmatched %c", |
156 |
|
|
#define ERR_NOMEM 53 |
157 |
|
|
"Out of memory", |
158 |
|
|
#define ERR_PIPE 54 |
159 |
|
|
"Can't make pipe", |
160 |
|
|
#define ERR_SYSTEM 55 |
161 |
|
|
"%s: %s", |
162 |
|
|
#define ERR_STRING 56 |
163 |
|
|
"%s", |
164 |
|
|
#define ERR_JOBS 57 |
165 |
|
|
"usage: jobs [-l]", |
166 |
|
|
#define ERR_JOBARGS 58 |
167 |
|
|
"Arguments should be jobs or process id's", |
168 |
|
|
#define ERR_JOBCUR 59 |
169 |
|
|
"No current job", |
170 |
|
|
#define ERR_JOBPREV 60 |
171 |
|
|
"No previous job", |
172 |
|
|
#define ERR_JOBPAT 61 |
173 |
|
|
"No job matches pattern", |
174 |
|
|
#define ERR_NESTING 62 |
175 |
|
|
"Fork nesting > %d; maybe `...` loop", |
176 |
|
|
#define ERR_JOBCTRLSUB 63 |
177 |
|
|
"No job control in subshells", |
178 |
|
|
#define ERR_BADPLPS 64 |
179 |
|
|
"Badly placed ()'s", |
180 |
|
|
#define ERR_STOPPED 65 |
181 |
|
|
"%sThere are suspended jobs", |
182 |
|
|
#define ERR_NODIR 66 |
183 |
|
|
"No other directory", |
184 |
|
|
#define ERR_EMPTY 67 |
185 |
|
|
"Directory stack empty", |
186 |
|
|
#define ERR_BADDIR 68 |
187 |
|
|
"Bad directory", |
188 |
|
|
#define ERR_DIRUS 69 |
189 |
|
|
"usage: %s [-lnv]%s", |
190 |
|
|
#define ERR_HFLAG 70 |
191 |
|
|
"No operand for -h flag", |
192 |
|
|
#define ERR_NOTLOGIN 71 |
193 |
|
|
"Not a login shell", |
194 |
|
|
#define ERR_DIV0 72 |
195 |
|
|
"Division by 0", |
196 |
|
|
#define ERR_MOD0 73 |
197 |
|
|
"Mod by 0", |
198 |
|
|
#define ERR_BADSCALE 74 |
199 |
|
|
"Bad scaling; did you mean \"%s\"?", |
200 |
|
|
#define ERR_SUSPLOG 75 |
201 |
|
|
"Can't suspend a login shell (yet)", |
202 |
|
|
#define ERR_UNKUSER 76 |
203 |
|
|
"Unknown user: %s", |
204 |
|
|
#define ERR_NOHOME 77 |
205 |
|
|
"No $home variable set", |
206 |
|
|
#define ERR_HISTUS 78 |
207 |
|
|
"usage: history [-hr] [n]", |
208 |
|
|
#define ERR_SPDOLLT 79 |
209 |
|
|
"$, ! or < not allowed with $# or $?", |
210 |
|
|
#define ERR_NEWLINE 80 |
211 |
|
|
"Newline in variable name", |
212 |
|
|
#define ERR_SPSTAR 81 |
213 |
|
|
"* not allowed with $# or $?", |
214 |
|
|
#define ERR_DIGIT 82 |
215 |
|
|
"$?<digit> or $#<digit> not allowed", |
216 |
|
|
#define ERR_VARILL 83 |
217 |
|
|
"Illegal variable name", |
218 |
|
|
#define ERR_NLINDEX 84 |
219 |
|
|
"Newline in variable index", |
220 |
|
|
#define ERR_EXPOVFL 85 |
221 |
|
|
"Expansion buffer overflow", |
222 |
|
|
#define ERR_VARSYN 86 |
223 |
|
|
"Variable syntax", |
224 |
|
|
#define ERR_BADBANG 87 |
225 |
|
|
"Bad ! form", |
226 |
|
|
#define ERR_NOSUBST 88 |
227 |
|
|
"No previous substitute", |
228 |
|
|
#define ERR_BADSUBST 89 |
229 |
|
|
"Bad substitute", |
230 |
|
|
#define ERR_LHS 90 |
231 |
|
|
"No previous left hand side", |
232 |
|
|
#define ERR_RHSLONG 91 |
233 |
|
|
"Right hand side too long", |
234 |
|
|
#define ERR_BADBANGMOD 92 |
235 |
|
|
"Bad ! modifier: %c", |
236 |
|
|
#define ERR_MODFAIL 93 |
237 |
|
|
"Modifier failed", |
238 |
|
|
#define ERR_SUBOVFL 94 |
239 |
|
|
"Substitution buffer overflow", |
240 |
|
|
#define ERR_BADBANGARG 95 |
241 |
|
|
"Bad ! arg selector", |
242 |
|
|
#define ERR_NOSEARCH 96 |
243 |
|
|
"No prev search", |
244 |
|
|
#define ERR_NOEVENT 97 |
245 |
|
|
"%s: Event not found", |
246 |
|
|
#define ERR_TOOMANYRP 98 |
247 |
|
|
"Too many )'s", |
248 |
|
|
#define ERR_TOOMANYLP 99 |
249 |
|
|
"Too many ('s", |
250 |
|
|
#define ERR_BADPLP 100 |
251 |
|
|
"Badly placed (", |
252 |
|
|
#define ERR_MISRED 101 |
253 |
|
|
"Missing name for redirect", |
254 |
|
|
#define ERR_OUTRED 102 |
255 |
|
|
"Ambiguous output redirect", |
256 |
|
|
#define ERR_REDPAR 103 |
257 |
|
|
"Can't << within ()'s", |
258 |
|
|
#define ERR_INRED 104 |
259 |
|
|
"Ambiguous input redirect", |
260 |
|
|
#define ERR_ALIASLOOP 105 |
261 |
|
|
"Alias loop", |
262 |
|
|
#define ERR_HISTLOOP 106 |
263 |
|
|
"!# History loop", |
264 |
|
|
#define ERR_ARCH 107 |
265 |
|
|
"%s: %s. Wrong Architecture", |
266 |
|
|
#define ERR_FILEINQ 108 |
267 |
|
|
"Malformed file inquiry", |
268 |
|
|
#define ERR_SELOVFL 109 |
269 |
|
|
"Selector overflow", |
270 |
|
|
#define ERR_INVALID 110 |
271 |
|
|
"Invalid Error" |
272 |
|
|
}; |
273 |
|
|
|
274 |
|
|
/* |
275 |
|
|
* The parser and scanner set up errors for later by calling seterr, |
276 |
|
|
* which sets the variable err as a side effect; later to be tested, |
277 |
|
|
* e.g. in process. |
278 |
|
|
*/ |
279 |
|
|
void |
280 |
|
|
seterror(int id, ...) |
281 |
|
|
{ |
282 |
|
|
if (seterr == 0) { |
283 |
|
|
char berr[BUFSIZ]; |
284 |
|
|
va_list va; |
285 |
|
|
|
286 |
|
|
va_start(va, id); |
287 |
|
|
if (id < 0 || id >= sizeof(errorlist) / sizeof(errorlist[0])) |
288 |
|
|
id = ERR_INVALID; |
289 |
|
|
vsnprintf(berr, sizeof(berr), errorlist[id], va); |
290 |
|
|
va_end(va); |
291 |
|
|
|
292 |
|
|
seterr = strsave(berr); |
293 |
|
|
} |
294 |
|
|
} |
295 |
|
|
|
296 |
|
|
/* |
297 |
|
|
* Print the error with the given id. |
298 |
|
|
* |
299 |
|
|
* Special ids: |
300 |
|
|
* ERR_SILENT: Print nothing. |
301 |
|
|
* ERR_OLD: Print the previously set error if one was there. |
302 |
|
|
* otherwise return. |
303 |
|
|
* ERR_NAME: If this bit is set, print the name of the function |
304 |
|
|
* in bname |
305 |
|
|
* |
306 |
|
|
* This routine always resets or exits. The flag haderr |
307 |
|
|
* is set so the routine who catches the unwind can propagate |
308 |
|
|
* it if they want. |
309 |
|
|
* |
310 |
|
|
* Note that any open files at the point of error will eventually |
311 |
|
|
* be closed in the routine process in sh.c which is the only |
312 |
|
|
* place error unwinds are ever caught. |
313 |
|
|
*/ |
314 |
|
|
void |
315 |
|
|
stderror(int id, ...) |
316 |
|
|
{ |
317 |
|
|
va_list va; |
318 |
|
|
Char **v; |
319 |
|
|
int flags = id & ERR_FLAGS; |
320 |
|
|
|
321 |
|
|
id &= ~ERR_FLAGS; |
322 |
|
|
|
323 |
|
|
if ((flags & ERR_OLD) && seterr == NULL) |
324 |
|
|
return; |
325 |
|
|
|
326 |
|
|
if (id < 0 || id >= sizeof(errorlist) / sizeof(errorlist[0])) |
327 |
|
|
id = ERR_INVALID; |
328 |
|
|
|
329 |
|
|
(void) fflush(cshout); |
330 |
|
|
(void) fflush(csherr); |
331 |
|
|
haderr = 1; /* Now to diagnostic output */ |
332 |
|
|
timflg = 0; /* This isn't otherwise reset */ |
333 |
|
|
|
334 |
|
|
|
335 |
|
|
if (!(flags & ERR_SILENT)) { |
336 |
|
|
if (flags & ERR_NAME) |
337 |
|
|
(void) fprintf(csherr, "%s: ", bname); |
338 |
|
|
if ((flags & ERR_OLD)) |
339 |
|
|
/* Old error. */ |
340 |
|
|
(void) fprintf(csherr, "%s.\n", seterr); |
341 |
|
|
else { |
342 |
|
|
va_start(va, id); |
343 |
|
|
(void) vfprintf(csherr, errorlist[id], va); |
344 |
|
|
va_end(va); |
345 |
|
|
(void) fprintf(csherr, ".\n"); |
346 |
|
|
} |
347 |
|
|
} |
348 |
|
|
|
349 |
|
|
if (seterr) { |
350 |
|
|
free(seterr); |
351 |
|
|
seterr = NULL; |
352 |
|
|
} |
353 |
|
|
|
354 |
|
|
if ((v = pargv) != NULL) |
355 |
|
|
pargv = 0, blkfree(v); |
356 |
|
|
if ((v = gargv) != NULL) |
357 |
|
|
gargv = 0, blkfree(v); |
358 |
|
|
|
359 |
|
|
(void) fflush(cshout); |
360 |
|
|
(void) fflush(csherr); |
361 |
|
|
didfds = 0; /* Forget about 0,1,2 */ |
362 |
|
|
/* |
363 |
|
|
* Go away if -e or we are a child shell |
364 |
|
|
*/ |
365 |
|
|
if (!exitset || exiterr || child) |
366 |
|
|
xexit(1); |
367 |
|
|
|
368 |
|
|
/* |
369 |
|
|
* Reset the state of the input. This buffered seek to end of file will |
370 |
|
|
* also clear the while/foreach stack. |
371 |
|
|
*/ |
372 |
|
|
btoeof(); |
373 |
|
|
|
374 |
|
|
set(STRstatus, Strsave(STR1)); |
375 |
|
|
if (tpgrp > 0) |
376 |
|
|
(void) tcsetpgrp(FSHTTY, tpgrp); |
377 |
|
|
reset(); /* Unwind */ |
378 |
|
|
} |