Remove __P macros from src/usr.bin and src/usr.sbin.
[dragonfly.git] / usr.bin / xlint / lint1 / err.c
CommitLineData
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1/* $NetBSD: err.c,v 1.8 1995/10/02 17:37:00 jpo Exp $ */
2
3/*
4 * Copyright (c) 1994, 1995 Jochen Pohl
5 * All Rights Reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Jochen Pohl for
18 * The NetBSD Project.
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 *
33 * $NetBSD: err.c,v 1.8 1995/10/02 17:37:00 jpo Exp $
2d8a3be7 34 * $DragonFly: src/usr.bin/xlint/lint1/err.c,v 1.4 2003/11/03 19:31:34 eirikn Exp $
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35 */
36
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37/* number of errors found */
38int nerr;
39
40/* number of syntax errors */
41int sytxerr;
42
43#include <stdlib.h>
44#ifdef __STDC__
45#include <stdarg.h>
46#else
47#include <varargs.h>
48#endif
49
50#include "lint1.h"
51
2d8a3be7
EN
52static const char *basename(const char *);
53static void verror(int, va_list);
54static void vwarning(int, va_list);
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55
56
57const char *msgs[] = {
58 "syntax error: empty declaration", /* 0 */
59 "old style declaration; add int", /* 1 */
60 "empty declaration", /* 2 */
61 "%s declared in argument declaration list", /* 3 */
62 "illegal type combination", /* 4 */
63 "modifying typedef with '%s'; only qualifiers allowed", /* 5 */
64 "use 'double' instead of 'long float'", /* 6 */
65 "only one storage class allowed", /* 7 */
66 "illegal storage class", /* 8 */
67 "only register valid as formal parameter storage class", /* 9 */
68 "duplicate '%s'", /* 10 */
69 "bit-field initializer out of range", /* 11 */
70 "compiler takes size of function", /* 12 */
71 "incomplete enum type: %s", /* 13 */
72 "compiler takes alignment of function", /* 14 */
73 "function returns illegal type", /* 15 */
74 "array of function is illegal", /* 16 */
75 "null dimension", /* 17 */
76 "illegal use of 'void'", /* 18 */
77 "void type for %s", /* 19 */
78 "zero or negative array dimension", /* 20 */
79 "redeclaration of formal parameter %s", /* 21 */
80 "incomplete or misplaced function definition", /* 22 */
81 "undefined label %s", /* 23 */
82 "cannot initialize function: %s", /* 24 */
83 "cannot initialize typedef: %s", /* 25 */
84 "cannot initialize extern declaration: %s", /* 26 */
85 "redeclaration of %s", /* 27 */
86 "redefinition of %s", /* 28 */
87 "previously declared extern, becomes static: %s", /* 29 */
88 "redeclaration of %s; ANSI C requires static", /* 30 */
89 "incomplete structure or union %s: %s", /* 31 */
90 "argument type defaults to 'int': %s", /* 32 */
91 "duplicate member name: %s", /* 33 */
92 "nonportable bit-field type", /* 34 */
93 "illegal bit-field type", /* 35 */
94 "illegal bit-field size", /* 36 */
95 "zero size bit-field", /* 37 */
96 "function illegal in structure or union", /* 38 */
97 "illegal zero sized structure member: %s", /* 39 */
98 "unknown size: %s", /* 40 */
99 "illegal use of bit-field", /* 41 */
100 "forward reference to enum type", /* 42 */
101 "redefinition hides earlier one: %s", /* 43 */
102 "declaration introduces new type in ANSI C: %s %s", /* 44 */
103 "base type is really '%s %s'", /* 45 */
104 "(%s) tag redeclared", /* 46 */
105 "zero sized %s", /* 47 */
106 "overflow in enumeration values: %s", /* 48 */
107 "struct or union member must be named", /* 49 */
108 "a function is declared as an argument: %s", /* 50 */
109 "parameter mismatch: %d declared, %d defined", /* 51 */
110 "cannot initialize parameter: %s", /* 52 */
111 "declared argument %s is missing", /* 53 */
112 "trailing ',' prohibited in enum declaration", /* 54 */
113 "integral constant expression expected", /* 55 */
114 "integral constant too large", /* 56 */
115 "enumeration constant hides parameter: %s", /* 57 */
116 "type does not match prototype: %s", /* 58 */
117 "formal parameter lacks name: param #%d", /* 59 */
118 "void must be sole parameter", /* 60 */
119 "void parameter cannot have name: %s", /* 61 */
120 "function prototype parameters must have types", /* 62 */
121 "prototype does not match old-style definition", /* 63 */
122 "()-less function definition", /* 64 */
123 "%s has no named members", /* 65 */
124 "syntax requires ';' after last struct/union member", /* 66 */
125 "cannot return incomplete type", /* 67 */
126 "typedef already qualified with '%s'", /* 68 */
127 "inappropriate qualifiers with 'void'", /* 69 */
128 "%soperand of '%s' is unsigned in ANSI C", /* 70 */
129 "too many characters in character constant", /* 71 */
130 "typedef declares no type name", /* 72 */
131 "empty character constant", /* 73 */
132 "no hex digits follow \\x", /* 74 */
133 "overflow in hex escape", /* 75 */
134 "character escape does not fit in character", /* 76 */
135 "bad octal digit %c", /* 77 */
136 "nonportable character escape", /* 78 */
137 "dubious escape \\%c", /* 79 */
138 "dubious escape \\%o", /* 80 */
139 "\\a undefined in traditional C", /* 81 */
140 "\\x undefined in traditional C", /* 82 */
141 "storage class after type is obsolescent", /* 83 */
142 "ANSI C requires formal parameter before '...'", /* 84 */
143 "dubious tag declaration: %s %s", /* 85 */
144 "automatic hides external declaration: %s", /* 86 */
145 "static hides external declaration: %s", /* 87 */
146 "typedef hides external declaration: %s", /* 88 */
147 "typedef redeclared: %s", /* 89 */
148 "inconsistent redeclaration of extern: %s", /* 90 */
149 "declaration hides parameter: %s", /* 91 */
150 "inconsistent redeclaration of static: %s", /* 92 */
151 "dubious static function at block level: %s", /* 93 */
152 "function has illegal storage class: %s", /* 94 */
153 "declaration hides earlier one: %s", /* 95 */
154 "cannot dereference non-pointer type", /* 96 */
155 "suffix U is illegal in traditional C", /* 97 */
156 "suffixes F and L are illegal in traditional C", /* 98 */
157 "%s undefined", /* 99 */
158 "unary + is illegal in traditional C", /* 100 */
159 "undefined struct/union member: %s", /* 101 */
160 "illegal member use: %s", /* 102 */
161 "left operand of '.' must be struct/union object", /* 103 */
162 "left operand of '->' must be pointer to struct/union", /* 104 */
163 "non-unique member requires struct/union %s", /* 105 */
164 "left operand of '->' must be pointer", /* 106 */
165 "operands of '%s' have incompatible types", /* 107 */
166 "operand of '%s' has incompatible type", /* 108 */
167 "void type illegal in expression", /* 109 */
168 "pointer to function is not allowed here", /* 110 */
169 "unacceptable operand of '%s'", /* 111 */
170 "cannot take address of bit-field", /* 112 */
171 "cannot take address of register %s", /* 113 */
172 "%soperand of '%s' must be lvalue", /* 114 */
173 "%soperand of '%s' must be modifiable lvalue", /* 115 */
174 "illegal pointer subtraction", /* 116 */
175 "bitwise operation on signed value possibly nonportable", /* 117 */
176 "semantics of '%s' change in ANSI C; use explicit cast", /* 118 */
177 "conversion of '%s' to '%s' is out of range", /* 119 */
178 "bitwise operation on signed value nonportable", /* 120 */
179 "negative shift", /* 121 */
180 "shift greater than size of object", /* 122 */
181 "illegal combination of pointer and integer, op %s", /* 123 */
182 "illegal pointer combination, op %s", /* 124 */
183 "ANSI C forbids ordered comparisons of pointers to functions",/* 125 */
184 "incompatible types in conditional", /* 126 */
185 "'&' before array or function: ignored", /* 127 */
186 "operands have incompatible pointer types, op %s", /* 128 */
187 "expression has null effect", /* 129 */
188 "enum type mismatch, op %s", /* 130 */
189 "conversion to '%s' may sign-extend incorrectly", /* 131 */
190 "conversion from '%s' may lose accuracy", /* 132 */
191 "conversion of pointer to '%s' loses bits", /* 133 */
192 "conversion of pointer to '%s' may lose bits", /* 134 */
193 "possible pointer alignment problem", /* 135 */
194 "cannot do pointer arithmetic on operand of unknown size", /* 136 */
195 "use of incomplete enum type, op %s", /* 137 */
196 "unknown operand size, op %s", /* 138 */
197 "division by 0", /* 139 */
198 "modulus by 0", /* 140 */
199 "integer overflow detected, op %s", /* 141 */
200 "floating point overflow detected, op %s", /* 142 */
201 "cannot take size of incomplete type", /* 143 */
202 "cannot take size of function", /* 144 */
203 "cannot take size of bit-field", /* 145 */
204 "cannot take size of void", /* 146 */
205 "invalid cast expression", /* 147 */
206 "improper cast of void expression", /* 148 */
207 "illegal function", /* 149 */
208 "argument mismatch: %d arg%s passed, %d expected", /* 150 */
209 "void expressions may not be arguments, arg #%d", /* 151 */
210 "argument cannot have unknown size, arg #%d", /* 152 */
211 "argument has incompatible pointer type, arg #%d", /* 153 */
212 "illegal combination of pointer and integer, arg #%d", /* 154 */
213 "argument is incompatible with prototype, arg #%d", /* 155 */
214 "enum type mismatch, arg #%d", /* 156 */
215 "ANSI C treats constant as unsigned", /* 157 */
216 "%s may be used before set", /* 158 */
217 "assignment in conditional context", /* 159 */
218 "operator '==' found where '=' was expected", /* 160 */
219 "constant in conditional context", /* 161 */
220 "comparision of %s with %s, op %s", /* 162 */
221 "a cast does not yield an lvalue", /* 163 */
222 "assignment of negative constant to unsigned type", /* 164 */
223 "constant truncated by assignment", /* 165 */
224 "precision lost in bit-field assignment", /* 166 */
225 "array subscript cannot be negative: %ld", /* 167 */
226 "array subscript cannot be > %d: %ld", /* 168 */
227 "precedence confusion possible: parenthesize!", /* 169 */
228 "first operand must have scalar type, op ? :", /* 170 */
229 "assignment type mismatch", /* 171 */
230 "too many struct/union initializers", /* 172 */
231 "too many array initializers", /* 173 */
232 "too many initializers", /* 174 */
233 "initialisation of an incomplete type", /* 175 */
234 "invalid initializer", /* 176 */
235 "non-constant initializer", /* 177 */
236 "initializer does not fit", /* 178 */
237 "cannot initialize struct/union with no named member", /* 179 */
238 "bit-field initializer does not fit", /* 180 */
239 "{}-enclosed initializer required", /* 181 */
240 "incompatible pointer types", /* 182 */
241 "illegal combination of pointer and integer", /* 183 */
242 "illegal pointer combination", /* 184 */
243 "initialisation type mismatch", /* 185 */
244 "bit-field initialisation is illegal in traditional C", /* 186 */
245 "non-null byte ignored in string initializer", /* 187 */
246 "no automatic aggregate initialization in traditional C", /* 188 */
247 "assignment of struct/union illegal in traditional C", /* 189 */
248 "empty array declaration: %s", /* 190 */
249 "%s set but not used in function %s", /* 191 */
250 "%s unused in function %s", /* 192 */
251 "statement not reached", /* 193 */
252 "label %s redefined", /* 194 */
253 "case not in switch", /* 195 */
254 "case label affected by conversion", /* 196 */
255 "non-constant case expression", /* 197 */
256 "non-integral case expression", /* 198 */
257 "duplicate case in switch: %ld", /* 199 */
258 "duplicate case in switch: %lu", /* 200 */
259 "default outside switch", /* 201 */
260 "duplicate default in switch", /* 202 */
261 "case label must be of type `int' in traditional C", /* 203 */
262 "controlling expressions must have scalar type", /* 204 */
263 "switch expression must have integral type", /* 205 */
264 "enumeration value(s) not handled in switch", /* 206 */
265 "loop not entered at top", /* 207 */
266 "break outside loop or switch", /* 208 */
267 "continue outside loop", /* 209 */
268 "enum type mismatch in initialisation", /* 210 */
269 "return value type mismatch", /* 211 */
270 "cannot return incomplete type", /* 212 */
271 "void function %s cannot return value", /* 213 */
272 "function %s expects to return value", /* 214 */
273 "function implicitly declared to return int", /* 215 */
274 "function %s has return (e); and return;", /* 216 */
275 "function %s falls off bottom without returning value", /* 217 */
276 "ANSI C treats constant as unsigned, op %s", /* 218 */
277 "concatenated strings are illegal in traditional C", /* 219 */
278 "fallthrough on case statement", /* 220 */
279 "initialisation of unsigned with negative constant", /* 221 */
280 "conversion of negative constant to unsigned type", /* 222 */
281 "end-of-loop code not reached", /* 223 */
282 "cannot recover from previous errors", /* 224 */
283 "static function called but not defined: %s()", /* 225 */
284 "static variable %s unused", /* 226 */
285 "const object %s should have initializer", /* 227 */
286 "function cannot return const or volatile object", /* 228 */
287 "questionable conversion of function pointer", /* 229 */
288 "nonportable character comparision, op %s", /* 230 */
289 "argument %s unused in function %s", /* 231 */
290 "label %s unused in function %s", /* 232 */
291 "struct %s never defined", /* 233 */
292 "union %s never defined", /* 234 */
293 "enum %s never defined", /* 235 */
294 "static function %s unused", /* 236 */
295 "redeclaration of formal parameter %s", /* 237 */
296 "initialisation of union is illegal in traditional C", /* 238 */
297 "constant argument to NOT", /* 239 */
298 "assignment of different structures", /* 240 */
299 "dubious operation on enum, op %s", /* 241 */
300 "combination of '%s' and '%s', op %s", /* 242 */
301 "dubious comparision of enums, op %s", /* 243 */
302 "illegal structure pointer combination", /* 244 */
303 "illegal structure pointer combination, op %s", /* 245 */
304 "dubious conversion of enum to '%s'", /* 246 */
305 "pointer casts may be troublesome", /* 247 */
306 "floating-point constant out of range", /* 248 */
307 "syntax error", /* 249 */
308 "unknown character \\%o", /* 250 */
309 "malformed integer constant", /* 251 */
310 "integer constant out of range", /* 252 */
311 "unterminated character constant", /* 253 */
312 "newline in string or char constant", /* 254 */
313 "undefined or invalid # directive", /* 255 */
314 "unterminated comment", /* 256 */
315 "extra characters in lint comment", /* 257 */
316 "unterminated string constant", /* 258 */
317 "conversion to '%s' due to prototype, arg #%d", /* 259 */
318 "previous declaration of %s", /* 260 */
319 "previous definition of %s", /* 261 */
320 "\\\" inside character constants undefined in traditional C", /* 262 */
321 "\\? undefined in traditional C", /* 263 */
322 "\\v undefined in traditional C", /* 264 */
323 "%s C does not support 'long long'", /* 265 */
324 "'long double' is illegal in traditional C", /* 266 */
325 "shift equal to size of object", /* 267 */
326 "variable declared inline: %s", /* 268 */
327 "argument declared inline: %s", /* 269 */
328 "function prototypes are illegal in traditional C", /* 270 */
329 "switch expression must be of type `int' in traditional C", /* 271 */
330 "empty translation unit", /* 272 */
331 "bit-field type '%s' invalid in ANSI C", /* 273 */
332 "ANSI C forbids comparision of %s with %s", /* 274 */
333 "cast discards 'const' from pointer target type", /* 275 */
334 "", /* 276 */
335 "initialisation of '%s' with '%s'", /* 277 */
336 "combination of '%s' and '%s', arg #%d", /* 278 */
337 "combination of '%s' and '%s' in return", /* 279 */
338 "must be outside function: /* %s */", /* 280 */
339 "duplicate use of /* %s */", /* 281 */
340 "must precede function definition: /* %s */", /* 282 */
341 "argument number mismatch with directive: /* %s */", /* 283 */
342 "fallthrough on default statement", /* 284 */
343 "prototype declaration", /* 285 */
344 "function definition is not a prototype", /* 286 */
345 "function declaration is not a prototype", /* 287 */
346 "dubious use of /* VARARGS */ with /* %s */", /* 288 */
347 "can't be used together: /* PRINTFLIKE */ /* SCANFLIKE */", /* 289 */
348 "static function %s declared but not defined", /* 290 */
349 "invalid multibyte character", /* 291 */
350 "cannot concatenate wide and regular string literals", /* 292 */
351 "argument %d must be 'char *' for PRINTFLIKE/SCANFLIKE", /* 293 */
352 "multi-character character constant", /* 294 */
353 "conversion of '%s' to '%s' is out of range, arg #%d", /* 295 */
354 "conversion of negative constant to unsigned type, arg #%d", /* 296 */
355 "conversion to '%s' may sign-extend incorrectly, arg #%d", /* 297 */
356 "conversion from '%s' may lose accuracy, arg #%d", /* 298 */
357 "prototype does not match old style definition, arg #%d", /* 299 */
358 "old style definition", /* 300 */
359 "array of incomplete type", /* 301 */
360 "%s returns pointer to automatic object", /* 302 */
361 "ANSI C forbids conversion of %s to %s", /* 303 */
362 "ANSI C forbids conversion of %s to %s, arg #%d", /* 304 */
363 "ANSI C forbids conversion of %s to %s, op %s", /* 305 */
364 "constant truncated by conversion, op %s", /* 306 */
365 "static variable %s set but not used", /* 307 */
366 "", /* 308 */
367 "extra bits set to 0 in conversion of '%s' to '%s', op %s", /* 309 */
368};
369
370/*
371 * If Fflag is not set basename() returns a pointer to the last
372 * component of the path, otherwise it returns the argument.
373 */
374static const char *
375basename(path)
376 const char *path;
377{
378 const char *cp, *cp1, *cp2;
379
380 if (Fflag)
381 return (path);
382
383 cp = cp1 = cp2 = path;
384 while (*cp != '\0') {
385 if (*cp++ == '/') {
386 cp2 = cp1;
387 cp1 = cp;
388 }
389 }
390 return (*cp1 == '\0' ? cp2 : cp1);
391}
392
393static void
394verror(n, ap)
395 int n;
396 va_list ap;
397{
398 const char *fn;
399
400 fn = basename(curr_pos.p_file);
401 (void)printf("%s:%d: ", fn, curr_pos.p_line);
402 (void)vprintf(msgs[n], ap);
403 (void)printf("\n");
404 nerr++;
405}
406
407static void
408vwarning(n, ap)
409 int n;
410 va_list ap;
411{
412 const char *fn;
413
414 if (nowarn)
415 /* this warning is suppressed by a LINTED comment */
416 return;
417
418 fn = basename(curr_pos.p_file);
419 (void)printf("%s:%d: warning: ", fn, curr_pos.p_line);
420 (void)vprintf(msgs[n], ap);
421 (void)printf("\n");
422}
423
424void
425#ifdef __STDC__
426error(int n, ...)
427#else
428error(n, va_alist)
429 int n;
430 va_dcl
431#endif
432{
433 va_list ap;
434
435#ifdef __STDC__
436 va_start(ap, n);
437#else
438 va_start(ap);
439#endif
440 verror(n, ap);
441 va_end(ap);
442}
443
444void
445#ifdef __STDC__
446lerror(const char *msg, ...)
447#else
448lerror(msg, va_alist)
449 const char *msg;
450 va_dcl
451#endif
452{
453 va_list ap;
454 const char *fn;
455
456#ifdef __STDC__
457 va_start(ap, msg);
458#else
459 va_start(ap);
460#endif
461 fn = basename(curr_pos.p_file);
462 (void)fprintf(stderr, "%s:%d: lint error: ", fn, curr_pos.p_line);
463 (void)vfprintf(stderr, msg, ap);
464 (void)fprintf(stderr, "\n");
465 va_end(ap);
466 exit(1);
467}
468
469void
470#ifdef __STDC__
471warning(int n, ...)
472#else
473warning(n, va_alist)
474 int n;
475 va_dcl
476#endif
477{
478 va_list ap;
479
480#ifdef __STDC__
481 va_start(ap, n);
482#else
483 va_start(ap);
484#endif
485 vwarning(n, ap);
486 va_end(ap);
487}
488
489void
490#ifdef __STDC__
491message(int n, ...)
492#else
493message(n, va_alist)
494 int n;
495 va_dcl
496#endif
497{
498 va_list ap;
499 const char *fn;
500
501#ifdef __STDC__
502 va_start(ap, n);
503#else
504 va_start(ap);
505#endif
506 fn = basename(curr_pos.p_file);
507 (void)printf("%s:%d: ", fn, curr_pos.p_line);
508 (void)vprintf(msgs[n], ap);
509 (void)printf("\n");
510 va_end(ap);
511}
512
513int
514#ifdef __STDC__
515gnuism(int n, ...)
516#else
517gnuism(n, va_alist)
518 int n;
519 va_dcl
520#endif
521{
522 va_list ap;
523 int msg;
524
525#ifdef __STDC__
526 va_start(ap, n);
527#else
528 va_start(ap);
529#endif
530 if (sflag && !gflag) {
531 verror(n, ap);
532 msg = 1;
533 } else if (!sflag && gflag) {
534 msg = 0;
535 } else {
536 vwarning(n, ap);
537 msg = 1;
538 }
539 va_end(ap);
540
541 return (msg);
542}