xref: /original-bsd/usr.bin/error/input.c (revision 6c57d260)
1 static	char *sccsid = "@(#)input.c	1.3 (Berkeley) 81/02/28";
2 #include <stdio.h>
3 #include <ctype.h>
4 #include "error.h"
5 
6 int	wordc;		/* how long the current error message is */
7 char	**wordv;	/* the actual error message */
8 
9 int	nerrors;
10 int	language;
11 
12 Errorclass	onelong();
13 Errorclass	cpp();
14 Errorclass	pccccom();	/* Portable C Compiler C Compiler */
15 Errorclass	richieccom();	/* Richie Compiler for 11 */
16 Errorclass	lint0();
17 Errorclass	lint1();
18 Errorclass	lint2();
19 Errorclass	lint3();
20 Errorclass	make();
21 Errorclass	f77();
22 Errorclass	pi();
23 Errorclass	ri();
24 /*
25  *	Eat all of the lines in the input file, attempting to categorize
26  *	them by their various flavors
27  */
28 static	char	inbuffer[BUFSIZ];
29 
30 eaterrors(r_errorc, r_errorv)
31 	int	*r_errorc;
32 	struct	error_desc	***r_errorv;
33 {
34 	extern	boolean	piflag;
35 	Errorclass	errorclass = C_SYNC;
36 
37     for (;;){
38 	if (fgets(inbuffer, BUFSIZ, errorfile) == NULL)
39 		break;
40 	wordvbuild(inbuffer, &wordc, &wordv);
41 	/*
42 	 *	for convience, convert wordv to be 1 based, instead
43 	 *	of 0 based.
44 	 */
45 	wordv -= 1;
46 	if ( 0
47 #ifndef ERNIE
48 	   || (piflag && ( (errorclass = pi() ) != C_UNKNOWN))
49 #endif
50 	   || (( errorclass = onelong() ) != C_UNKNOWN)
51 	   || (( errorclass = cpp() ) != C_UNKNOWN)
52 	   || (( errorclass = pccccom() ) != C_UNKNOWN)
53 	   || (( errorclass = richieccom() ) != C_UNKNOWN)
54 	   || (( errorclass = lint0() ) != C_UNKNOWN)
55 	   || (( errorclass = lint1() ) != C_UNKNOWN)
56 	   || (( errorclass = lint2() ) != C_UNKNOWN)
57 	   || (( errorclass = lint3() ) != C_UNKNOWN)
58 	   || (( errorclass = make() ) != C_UNKNOWN)
59 	   || (( errorclass = f77() ) != C_UNKNOWN)
60 #ifdef ERNIE
61 	   || ((errorclass = pi() ) != C_UNKNOWN)
62 	   || (( errorclass = ri() )!= C_UNKNOWN)
63 #endif
64 	) ;
65 	else
66 		errorclass = catchall();
67 	if (wordc)
68 		erroradd(wordc, wordv+1, errorclass, C_UNKNOWN);
69     }
70 #ifdef FULLDEBUG
71     printf("%d errorentrys\n", nerrors);
72 #endif
73     arrayify(r_errorc, r_errorv, er_head);
74 }
75 
76 /*
77  *	create a new error entry, given a zero based array and count
78  */
79 erroradd(errorlength, errorv, errorclass, errorsubclass)
80 	int		errorlength;
81 	char		**errorv;
82 	Errorclass	errorclass;
83 	Errorclass	errorsubclass;
84 {
85 	register	struct	error_desc	*newerror;
86 	register	char	*cp;
87 
88 	if (errorclass == C_TRUE){
89 		/* check canonicalization of the second argument*/
90 		for(cp = errorv[1]; *cp && isdigit(*cp); cp++)
91 			continue;
92 		errorclass = (*cp == '\0') ? C_TRUE : C_NONSPEC;
93 #ifdef FULLDEBUG
94 		if (errorclass != C_TRUE)
95 			printf("The 2nd word, \"%s\" is not a number.\n",
96 				errorv[1]);
97 #endif
98 	}
99 	if (errorlength > 0){
100 		newerror = (struct error_desc *)Calloc(1, sizeof(struct error_desc));
101 		newerror->error_language = language; /* language is global */
102 		newerror->error_text = errorv;
103 		newerror->error_lgtext = errorlength;
104 		if (errorclass == C_TRUE)
105 			newerror->error_line = atoi(errorv[1]);
106 		newerror->error_e_class = errorclass;
107 		newerror->error_s_class = errorsubclass;
108 		switch(newerror->error_e_class = discardit(newerror)){
109 			case C_SYNC:		nsyncerrors++; break;
110 			case C_DISCARD: 	ndiscard++; break;
111 			case C_NULLED:		nnulled++; break;
112 			case C_NONSPEC:		nnonspec++; break;
113 			case C_THISFILE: 	nthisfile++; break;
114 			case C_TRUE:		ntrue++; break;
115 			case C_UNKNOWN:		nunknown++; break;
116 			case C_IGNORE:		nignore++; break;
117 		}
118 		newerror->error_next = er_head;
119 		er_head = newerror;
120 		newerror->error_no = nerrors++;
121 	}	/* length > 0 */
122 }
123 
124 Errorclass onelong()
125 {
126 	char	**nwordv;
127 	if ( (wordc == 1) && (language != INLD) ){
128 		/*
129 		 *	We have either:
130 		 *	a)	file name from cc
131 		 *	b)	Assembler telling world that it is complaining
132 		 *	c)	Noise from make ("Stop.")
133 		 *	c)	Random noise
134 		 */
135 		wordc = 0;
136 		if (strcmp(wordv[2], "Stop.") == 0){
137 			language = INMAKE; return(C_SYNC);
138 		}
139 		if (strcmp(wordv[1], "Assembler:") == 0){
140 			/* assembler always alerts us to what happened*/
141 			language = INAS; return(C_SYNC);
142 		} else
143 		if (strcmp(wordv[1], "Undefined:") == 0){
144 			/* loader complains about unknown symbols*/
145 			language = INLD; return(C_SYNC);
146 		}
147 		if (lastchar(wordv[1]) == ':'){
148 			/* cc tells us what file we are in */
149 			currentfilename = wordv[1];
150 			substitute(currentfilename, ':', '\0');
151 			language = INCC; return(C_SYNC);
152 		}
153 	} else
154 	if ( (wordc == 1) && (language == INLD) ){
155 		nwordv = (char **)Calloc(4, sizeof(char *));
156 		nwordv[0] = "ld:";
157 		nwordv[1] = wordv[1];
158 		nwordv[2] = "is";
159 		nwordv[3] = "undefined.";
160 		wordc = 4;
161 		wordv = nwordv - 1;
162 		return(C_NONSPEC);
163 	} else
164 	if (wordc == 1){
165 		return(C_SYNC);
166 	}
167 	return(C_UNKNOWN);
168 }	/* end of one long */
169 
170 Errorclass	cpp()
171 {
172 	/*
173 	 *	Now attempt a cpp error message match
174 	 *	Examples:
175 	 *		./morse.h: 23: undefined control
176 	 *		morsesend.c: 229: MAGNIBBL: argument mismatch
177 	 *		morsesend.c: 237: MAGNIBBL: argument mismatch
178 	 *		test1.c: 6: undefined control
179 	 */
180 	if (   (language != INLD)		/* loader errors have almost same fmt*/
181 	    && (lastchar(wordv[1]) == ':')
182 	    && (isdigit(firstchar(wordv[2])))
183 	    && (lastchar(wordv[2]) == ':') ){
184 		language = INCPP;
185 		clob_last(wordv[1], '\0');
186 		clob_last(wordv[2], '\0');
187 		return(C_TRUE);
188 	}
189 	return(C_UNKNOWN);
190 }	/*end of cpp*/
191 
192 Errorclass pccccom()
193 {
194 	/*
195 	 *	Now attempt a ccom error message match:
196 	 *	Examples:
197 	 *	  "morsesend.c", line 237: operands of & have incompatible types
198 	 *	  "test.c", line 7: warning: old-fashioned initialization: use =
199 	 *	  "subdir.d/foo2.h", line 1: illegal initialization
200 	 */
201 	if (   (firstchar(wordv[1]) == '"')
202 	    && (lastchar(wordv[1]) == ',')
203 	    && (next_lastchar(wordv[1]) == '"')
204 	    && (strcmp(wordv[2],"line") == 0)
205 	    && (isdigit(firstchar(wordv[3])))
206 	    && (lastchar(wordv[3]) == ':') ){
207 		clob_last(wordv[1], '\0');	/* drop last , */
208 		clob_last(wordv[1], '\0');	/* drop last " */
209 		wordv[1]++;			/* drop first " */
210 		clob_last(wordv[3], '\0');	/* drop : on line number */
211 		wordv[2] = wordv[1];	/* overwrite "line" */
212 		wordv++;		/*compensate*/
213 		if (language == INAS){
214 			if (strcmp(currentfilename, "???") != 0)
215 				wordv[1] = currentfilename;
216 			return(C_NULLED);
217 		} else {
218 			currentfilename = wordv[1];
219 			language = INCC;
220 			return(C_TRUE);
221 		}
222 	}
223 	return(C_UNKNOWN);
224 }	/* end of ccom */
225 /*
226  *	Do the error message from the Richie C Compiler for the PDP11,
227  *	which has this source:
228  *
229  *	if (filename[0])
230  *		fprintf(stderr, "%s:", filename);
231  *	fprintf(stderr, "%d: ", line);
232  *
233  */
234 Errorclass richieccom()
235 {
236 	register	char	*cp;
237 	register	char	**nwordv;
238 			char	*file;
239 	if (lastchar(wordv[1]) == ':'){
240 		cp = wordv[1] + strlen(wordv[1]) - 1;
241 		while (isdigit(*--cp))
242 			continue;
243 		if (*cp == ':'){
244 			clob_last(wordv[1], '\0');	/* last : */
245 			*cp = '\0';			/* first : */
246 			file = wordv[1];
247 			nwordv = wordvsplice(1, wordc, wordv+1);
248 			nwordv[0] = file;
249 			nwordv[1] = cp + 1;
250 			wordc += 1;
251 			wordv = nwordv - 1;
252 			language = INCC;
253 			currentfilename = wordv[1];
254 			return(C_TRUE);
255 		}
256 	}
257 	return(C_UNKNOWN);
258 }
259 
260 Errorclass lint0()
261 {
262 	register	char	*cp;
263 	register	char	**nwordv;
264 			char	*line, *file;
265 	/*
266 	 *	Attempt a match for the new lint style normal compiler
267 	 *	error messages, of the form
268 	 *
269 	 *	printf("%s(%d): %s\n", filename, linenumber, message);
270 	 */
271 	if (wordc >= 2){
272 		if (   (lastchar(wordv[1]) == ':')
273 		    && (next_lastchar(wordv[1]) == ')')
274 		) {
275 			clob_last(wordv[1], '\0'); /* colon */
276 			if (persperdexplode(wordv[1], &line, &file)){
277 				nwordv = wordvsplice(1, wordc, wordv+1);
278 				nwordv[0] = file;	/* file name */
279 				nwordv[1] = line;	/* line number */
280 				wordc += 1;
281 				wordv = nwordv - 1;
282 				language = INLINT;
283 				return(C_TRUE);
284 			}
285 			wordv[1][strlen(wordv[1])] = ':';
286 		}
287 	}
288 	return (C_UNKNOWN);
289 }
290 
291 Errorclass lint1()
292 {
293 	char	*line1, *line2;
294 	char	*file1, *file2;
295 	char	**nwordv1, **nwordv2;
296 
297 	/*
298 	 *	Now, attempt a match for the various errors that lint
299 	 *	can complain about.
300 	 *
301 	 *	Look first for type 1 lint errors
302 	 */
303 	if (strcmp(wordv[wordc-1], "::") == 0){
304 	 /*
305   	  * %.7s, arg. %d used inconsistently %s(%d) :: %s(%d)
306   	  * %.7s value used inconsistently %s(%d) :: %s(%d)
307   	  * %.7s multiply declared %s(%d) :: %s(%d)
308   	  * %.7s value declared inconsistently %s(%d) :: %s(%d)
309   	  * %.7s function value type must be declared before use %s(%d) :: %s(%d)
310 	  */
311 		language = INLINT;
312 		if (    (persperdexplode(wordv[wordc], &line2, &file2))
313 		     && (persperdexplode(wordv[wordc-2], &line1, &file1)) ){
314 			nwordv1 = wordvsplice(2, wordc, wordv+1);
315 			nwordv2 = wordvsplice(2, wordc, wordv+1);
316 			nwordv1[0] = file1; nwordv1[1] = line1;
317 			erroradd(wordc+2, nwordv1, C_TRUE, C_DUPL); /* takes 0 based*/
318 			nwordv2[0] = file2; nwordv2[1] = line2;
319 			wordc = wordc + 2;
320 			wordv = nwordv2 - 1;	/* 1 based */
321 			return(C_TRUE);
322 		}
323 	}
324 	return(C_UNKNOWN);
325 } /* end of lint 1*/
326 
327 Errorclass lint2()
328 {
329 	char	*file;
330 	char	*line;
331 	char	**nwordv;
332 	/*
333 	 *	Look for type 2 lint errors
334 	 *
335 	 *	%.7s used( %s(%d) ), but not defined
336 	 *	%.7s defined( %s(%d) ), but never used
337 	 *	%.7s declared( %s(%d) ), but never used or defined
338 	 *
339 	 *	bufp defined( "./metric.h"(10) ), but never used
340 	 */
341 	if (   (lastchar(wordv[2]) == '(' /* ')' */ )
342 	    && (strcmp(wordv[4], "),") == 0) ){
343 		language = INLINT;
344 		if (persperdexplode(wordv[3], &line, &file)){
345 			nwordv = wordvsplice(2, wordc, wordv+1);
346 			nwordv[0] = file; nwordv[1] = line;
347 			wordc = wordc + 2;
348 			wordv = nwordv - 1;	/* 1 based */
349 			return(C_TRUE);
350 		}
351 	}
352 	return(C_UNKNOWN);
353 } /* end of lint 2*/
354 
355 char	*Lint31[4] = {"returns", "value", "which", "is"};
356 char	*Lint32[6] = {"value", "is", "used,", "but", "none", "returned"};
357 Errorclass lint3()
358 {
359 	if (   (wordvcmp(wordv+2, 4, Lint31) == 0)
360 	    || (wordvcmp(wordv+2, 6, Lint32) == 0) ){
361 		language = INLINT;
362 		return(C_NONSPEC);
363 	}
364 	return(C_UNKNOWN);
365 }
366 
367 /*
368  *	Special word vectors for use by F77 recognition
369  */
370 char	*F77_fatal[3] = {"Compiler", "error", "line"};
371 char	*F77_error[3] = {"Error", "on", "line"};
372 char	*F77_warning[3] = {"Warning", "on", "line"};
373 f77()
374 {
375 	char	**nwordv;
376 	/*
377 	 *	look for f77 errors:
378 	 *	Error messages from /usr/src/cmd/f77/error.c, with
379 	 *	these printf formats:
380 	 *
381 	 *		Compiler error line %d of %s: %s
382 	 *		Error on line %d of %s: %s
383 	 *		Warning on line %d of %s: %s
384 	 */
385 	if (wordc < 6)
386 		return(C_UNKNOWN);
387 	if (	(lastchar(wordv[6]) == ':')
388 	    &&(
389 	       (wordvcmp(wordv+1, 3, F77_fatal) == 0)
390 	    || (wordvcmp(wordv+1, 3, F77_error) == 0)
391 	    || (wordvcmp(wordv+1, 3, F77_warning) == 0) )
392 	){
393 		language = INF77;
394 		nwordv = wordvsplice(2, wordc, wordv+1);
395 		nwordv[0] = wordv[6];
396 		clob_last(nwordv[0],'\0');
397 		nwordv[1] = wordv[4];
398 		wordc += 2;
399 		wordv = nwordv - 1;	/* 1 based */
400 		return(C_TRUE);
401 	}
402 	return(C_UNKNOWN);
403 } /* end of f77 */
404 
405 char	*Make_Croak[3] = {"***", "Error", "code"};
406 char	*Make_NotRemade[5] = {"not", "remade", "because", "of", "errors"};
407 Errorclass make()
408 {
409 	if (wordvcmp(wordv+1, 3, Make_Croak) == 0){
410 		language = INMAKE;
411 		return(C_SYNC);
412 	}
413 	if  (wordvcmp(wordv+2, 5, Make_NotRemade) == 0){
414 		language = INMAKE;
415 		return(C_SYNC);
416 	}
417 	return(C_UNKNOWN);
418 }
419 Errorclass ri()
420 {
421 	char	**nwordv;
422 /*
423  *	Match an error message produced by ri; here is the
424  *	procedure yanked from the distributed version of ri
425  *	April 24, 1980.
426  *
427  *	serror(str, x1, x2, x3)
428  *		char str[];
429  *		char *x1, *x2, *x3;
430  *	{
431  *		extern int yylineno;
432  *
433  *		putc('"', stdout);
434  *		fputs(srcfile, stdout);
435  *		putc('"', stdout);
436  *		fprintf(stdout, " %d: ", yylineno);
437  *		fprintf(stdout, str, x1, x2, x3);
438  *		fprintf(stdout, "\n");
439  *		synerrs++;
440  *	}
441  */
442 	if (  (firstchar(wordv[1]) == '"')
443 	    &&(lastchar(wordv[1]) == '"')
444 	    &&(lastchar(wordv[2]) == ':')
445 	    &&(isdigit(firstchar(wordv[2]))) ){
446 		clob_last(wordv[1], '\0');	/* drop the last " */
447 		wordv[1]++;	/* skip over the first " */
448 		clob_last(wordv[2], '\0');
449 		language = INRI;
450 		return(C_TRUE);
451 	}
452 	return(C_UNKNOWN);
453 }
454 
455 Errorclass catchall()
456 {
457 	/*
458 	 *	Catches random things.
459 	 */
460 	language = INUNKNOWN;
461 	return(C_NONSPEC);
462 } /* end of catch all*/
463