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616915dd | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
77d37419 | 3 | ** Copyright (C) 1994-2002 University of Virginia, |
616915dd | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
155af98d | 20 | ** For information on splint: info@splint.org |
21 | ** To report a bug: splint-bug@splint.org | |
11db3170 | 22 | ** For more information: http://www.splint.org |
616915dd | 23 | */ |
24 | /* | |
25 | ** lcllib.c | |
26 | ** | |
27 | ** routines for loading and creating library files | |
28 | ** | |
29 | ** this is a brute-force implementation, a more efficient | |
30 | ** representation should be designed. | |
31 | ** | |
32 | */ | |
33 | ||
7ac543fa | 34 | /* |
35 | * Herbert 02/17/2002: | |
36 | * - fixed the recognition of Posix headers for OS/2 | |
37 | */ | |
38 | ||
1b8ae690 | 39 | # include "splintMacros.nf" |
616915dd | 40 | # include "llbasic.h" |
616915dd | 41 | # include "osd.h" |
42 | ||
43 | # ifndef NOLCL | |
44 | # include "gram.h" | |
45 | ||
46 | # include "lclscan.h" | |
47 | # endif | |
48 | ||
616915dd | 49 | # include "lcllib.h" |
50 | # include "llmain.h" | |
51 | # include "portab.h" | |
52 | ||
53 | /*@-incondefs@*/ /*@-redecl@*/ | |
15b3d2b2 | 54 | extern /*:open:*/ /*@dependent@*/ FILE *yyin; |
616915dd | 55 | /*@=incondefs@*/ /*@=redecl@*/ |
56 | ||
57 | /*@constant int NUMLIBS; @*/ | |
45569d72 | 58 | # define NUMLIBS 25 |
616915dd | 59 | |
60 | /*@constant int NUMPOSIXLIBS; @*/ | |
d1eb0f0f | 61 | # define NUMPOSIXLIBS 18 |
616915dd | 62 | |
63 | static ob_mstring posixlibs[NUMPOSIXLIBS] = | |
64 | { | |
616915dd | 65 | "dirent", |
66 | "fcntl", | |
67 | "grp", | |
68 | "pwd", | |
b072092f | 69 | "regex", |
d1eb0f0f | 70 | "sys/stat", |
616915dd | 71 | "sys/times", |
d1eb0f0f | 72 | "sys/types", |
73 | "netdb", /* unix */ | |
74 | "netinet/in", /* unix */ | |
75 | "sys/resource", /* unix */ | |
76 | "sys/socket", /* not posix */ | |
77 | "sys/syslog", /* not posix */ | |
616915dd | 78 | "sys/utsname", |
79 | "sys/wait", | |
80 | "termios", | |
81 | "unistd", | |
82 | "utime" | |
83 | } ; | |
84 | ||
85 | static ob_mstring stdlibs[NUMLIBS] = | |
86 | { | |
87 | "assert", | |
45569d72 | 88 | "complex" |
616915dd | 89 | "ctype", |
90 | "errno", | |
45569d72 | 91 | "fenv", |
92 | "float", | |
93 | "inttypes", | |
94 | "iso646", | |
616915dd | 95 | "limits", |
96 | "locale", | |
97 | "math", | |
98 | "setjmp", | |
99 | "signal", | |
100 | "stdarg", | |
45569d72 | 101 | "stdbool", |
616915dd | 102 | "stddef", |
45569d72 | 103 | "stdint", |
616915dd | 104 | "stdio", |
105 | "stdlib", | |
616915dd | 106 | "string", |
45569d72 | 107 | "strings", /* some systems use this...they shouldn't */ |
108 | "tgmath", | |
616915dd | 109 | "time", |
45569d72 | 110 | "wchar", |
111 | "wctype" | |
616915dd | 112 | } ; |
113 | ||
28bf4b0b | 114 | static bool loadLCDFile (FILE * p_f, cstring p_name); |
616915dd | 115 | |
116 | bool | |
117 | lcllib_isSkipHeader (cstring sname) | |
118 | { | |
119 | int i; | |
120 | bool posixlib = FALSE; | |
121 | char *libname; | |
616915dd | 122 | char *matchname; |
28bf4b0b | 123 | cstring xname; |
616915dd | 124 | |
125 | llassert (cstring_isDefined (sname)); | |
28bf4b0b | 126 | xname = fileLib_withoutExtension (sname, cstring_makeLiteralTemp (".h")); |
616915dd | 127 | |
d1eb0f0f | 128 | DPRINTF (("Include? %s", sname)); |
129 | ||
28bf4b0b | 130 | /*@access cstring@*/ |
131 | llassert (cstring_isDefined (xname)); | |
7ac543fa | 132 | # if defined (OS2) |
133 | { | |
134 | /* Posixlibs use forward slashes, so we use them here, too */ | |
135 | cstring_replaceAll (xname, '\\', '/'); | |
136 | libname = strrchr (xname, '/'); | |
137 | DPRINTF (("libname: %s", libname)); | |
138 | } | |
139 | # else | |
28bf4b0b | 140 | libname = strrchr (xname, CONNECTCHAR); |
7ac543fa | 141 | # endif |
616915dd | 142 | matchname = libname; |
143 | ||
144 | if (libname == NULL) | |
145 | { | |
28bf4b0b | 146 | libname = xname; |
616915dd | 147 | } |
148 | else | |
149 | { | |
150 | libname++; | |
151 | /*@-branchstate@*/ | |
152 | } | |
153 | /*@=branchstate@*/ | |
154 | ||
155 | if (mstring_equal (libname, "varargs")) | |
156 | { | |
157 | fileloc tmp = fileloc_makePreprocPrevious (g_currentloc); | |
158 | ||
159 | voptgenerror | |
160 | (FLG_USEVARARGS, | |
1d239d69 | 161 | message ("Include file <%s.h> is inconsistent with " |
616915dd | 162 | "ANSI library (should use <stdarg.h>)", |
163 | cstring_fromChars (libname)), | |
164 | tmp); | |
165 | ||
166 | fileloc_free (tmp); | |
7ebcc5bb | 167 | cstring_free (xname); |
616915dd | 168 | return TRUE; |
169 | } | |
170 | ||
abd7f895 | 171 | if (context_getFlag (FLG_SKIPISOHEADERS) |
616915dd | 172 | && context_usingAnsiLibrary ()) |
173 | { | |
174 | ||
175 | for (i = 0; i < NUMLIBS; i++) | |
176 | { | |
177 | if (mstring_equal (libname, stdlibs[i])) | |
178 | { | |
28bf4b0b | 179 | sfree (xname); |
616915dd | 180 | return TRUE; |
181 | } | |
182 | } | |
183 | } | |
184 | ||
185 | for (i = 0; i < NUMPOSIXLIBS; i++) | |
186 | { | |
7ac543fa | 187 | if (strchr (posixlibs[i], CONNECTCHAR) != NULL |
188 | # if defined (OS2) | |
189 | || strchr (posixlibs[i], ALTCONNECTCHAR) != NULL | |
190 | # endif | |
191 | ) | |
616915dd | 192 | { |
193 | char *ptr; | |
194 | ||
7ac543fa | 195 | DPRINTF (("xname: %s, posix: %s", xname, posixlibs[i])); |
28bf4b0b | 196 | if ((ptr = strstr (xname, posixlibs[i])) != NULL) |
616915dd | 197 | { |
198 | if (ptr[strlen (posixlibs[i])] == '\0') | |
199 | { | |
200 | posixlib = TRUE; | |
201 | matchname = ptr; | |
202 | break; | |
203 | } | |
204 | else | |
205 | { | |
206 | ; /* no match */ | |
207 | } | |
208 | } | |
209 | } | |
210 | else | |
211 | { | |
212 | if (mstring_equal (libname, posixlibs[i])) | |
213 | { | |
214 | posixlib = TRUE; | |
215 | matchname = libname; | |
216 | break; | |
217 | } | |
218 | /*@-branchstate@*/ | |
219 | } | |
220 | } /*@=branchstate@*/ | |
221 | ||
222 | if (posixlib) | |
223 | { | |
224 | if (context_usingPosixLibrary ()) | |
225 | { | |
226 | if (context_getFlag (FLG_SKIPPOSIXHEADERS)) | |
227 | { | |
7ebcc5bb | 228 | cstring_free (xname); |
393e573f | 229 | /*@-nullstate@*/ |
230 | return TRUE; | |
231 | /*@=nullstate@*/ | |
232 | /*@i233@*/ | |
233 | /* evans 2002-03-02: | |
234 | the returned reference is possibly null, | |
235 | but this should not change the null state of the parameter | |
236 | investigate this warning | |
237 | */ | |
616915dd | 238 | } |
239 | } | |
240 | else | |
241 | { | |
242 | fileloc tmp = fileloc_makePreprocPrevious (g_currentloc); | |
243 | ||
244 | voptgenerror | |
245 | (FLG_WARNPOSIX, | |
1d239d69 | 246 | message ("Include file <%s.h> matches the name of a " |
616915dd | 247 | "POSIX library, but the POSIX library is " |
248 | "not being used. Consider using +posixlib " | |
249 | "or +posixstrictlib to select the POSIX " | |
250 | "library, or -warnposix " | |
251 | "to suppress this message.", | |
252 | cstring_fromChars (matchname)), | |
253 | tmp); | |
254 | ||
255 | fileloc_free (tmp); | |
256 | } | |
257 | } | |
258 | ||
28bf4b0b | 259 | cstring_free (xname); |
260 | /*@noaccess cstring@*/ | |
393e573f | 261 | /*@-nullstate@*/ /*@i233@*/ /* same problem as above */ |
616915dd | 262 | return FALSE; |
393e573f | 263 | /*@=nullstate@*/ |
616915dd | 264 | } |
265 | ||
266 | static void printDot (void) | |
267 | { | |
80489f0a | 268 | displayScanContinue (cstring_makeLiteralTemp (".")); |
616915dd | 269 | } |
270 | ||
271 | void | |
272 | dumpState (cstring cfname) | |
273 | { | |
274 | FILE *f; | |
28bf4b0b | 275 | cstring fname = fileLib_addExtension (cfname, cstring_makeLiteralTemp (DUMP_SUFFIX)); |
616915dd | 276 | |
d5047b91 | 277 | f = fileTable_openWriteFile (context_fileTable (), fname); |
616915dd | 278 | |
80489f0a | 279 | displayScanOpen (message ("Dumping to %s ", fname)); |
616915dd | 280 | |
281 | if (f == NULL) | |
282 | { | |
efd360a3 | 283 | lldiagmsg (message ("Cannot open dump file for writing: %s", fname)); |
616915dd | 284 | } |
285 | else | |
286 | { | |
287 | /* | |
288 | ** sequence is convulted --- must call usymtab_prepareDump before | |
289 | ** dumping ctype table to convert type uid's | |
290 | */ | |
291 | ||
292 | printDot (); | |
293 | ||
28bf4b0b | 294 | /* |
295 | DPRINTF (("Before prepare dump:")); | |
296 | ctype_printTable (); | |
297 | DPRINTF (("Preparing dump...")); | |
298 | */ | |
299 | ||
616915dd | 300 | usymtab_prepareDump (); |
301 | ||
302 | /* | |
28bf4b0b | 303 | ** Be careful, these lines must match loadLCDFile checking. |
616915dd | 304 | */ |
305 | ||
11db3170 | 306 | fprintf (f, "%s %s\n", LIBRARY_MARKER, cstring_toCharsSafe (fname)); |
60868d40 | 307 | fprintf (f, ";;%s\n", SPLINT_VERSION); |
616915dd | 308 | fprintf (f, ";;lib:%d\n", (int) context_getLibrary ()); |
309 | fprintf (f, ";;ctTable\n"); | |
28bf4b0b | 310 | |
311 | DPRINTF (("Dumping types...")); | |
616915dd | 312 | printDot (); |
28bf4b0b | 313 | ctype_dumpTable (f); |
616915dd | 314 | printDot (); |
28bf4b0b | 315 | |
316 | DPRINTF (("Dumping type sets...")); | |
616915dd | 317 | fprintf (f, ";;tistable\n"); |
318 | typeIdSet_dumpTable (f); | |
319 | printDot (); | |
28bf4b0b | 320 | |
321 | DPRINTF (("Dumping usymtab...")); | |
322 | fprintf (f, ";;symTable\n"); | |
616915dd | 323 | usymtab_dump (f); |
324 | printDot (); | |
325 | ||
28bf4b0b | 326 | DPRINTF (("Dumping modules...")); |
616915dd | 327 | fprintf (f, ";; Modules access\n"); |
328 | context_dumpModuleAccess (f); | |
329 | fprintf (f, ";;End\n"); | |
dfd82dce | 330 | check (fileTable_closeFile (context_fileTable (), f)); |
616915dd | 331 | } |
332 | ||
80489f0a | 333 | displayScanClose (); |
28bf4b0b | 334 | cstring_free (fname); |
616915dd | 335 | } |
336 | ||
337 | bool | |
338 | loadStandardState () | |
339 | { | |
28bf4b0b | 340 | cstring fpath; |
616915dd | 341 | FILE *stdlib; |
342 | bool result; | |
28bf4b0b | 343 | cstring libname = fileLib_addExtension (context_selectedLibrary (), |
344 | cstring_makeLiteralTemp (DUMP_SUFFIX)); | |
616915dd | 345 | |
346 | if (osd_findOnLarchPath (libname, &fpath) != OSD_FILEFOUND) | |
347 | { | |
348 | lldiagmsg (message ("Cannot find %sstandard library: %s", | |
349 | cstring_makeLiteralTemp | |
350 | (context_getFlag (FLG_STRICTLIB) ? "strict " | |
351 | : (context_getFlag (FLG_UNIXLIB) ? "unix " : "")), | |
28bf4b0b | 352 | libname)); |
616915dd | 353 | lldiagmsg (cstring_makeLiteral (" Check LARCH_PATH environment variable.")); |
354 | result = FALSE; | |
355 | } | |
356 | else | |
357 | { | |
d5047b91 | 358 | stdlib = fileTable_openReadFile (context_fileTable (), fpath); |
616915dd | 359 | |
360 | if (stdlib == NULL) | |
361 | { | |
362 | lldiagmsg (message ("Cannot read standard library: %s", | |
28bf4b0b | 363 | fpath)); |
616915dd | 364 | lldiagmsg (cstring_makeLiteral (" Check LARCH_PATH environment variable.")); |
365 | ||
366 | result = FALSE; | |
367 | } | |
368 | else | |
369 | { | |
370 | if (context_getFlag (FLG_WHICHLIB)) | |
371 | { | |
372 | char *t = mstring_create (MAX_NAME_LENGTH); | |
373 | char *ot = t; | |
374 | ||
28bf4b0b | 375 | if ((t = reader_readLine (stdlib, t, MAX_NAME_LENGTH)) == NULL) |
616915dd | 376 | { |
377 | llfatalerror (cstring_makeLiteral ("Standard library format invalid")); | |
378 | } | |
379 | ||
28bf4b0b | 380 | if ((t = reader_readLine (stdlib, t, MAX_NAME_LENGTH)) != NULL) |
616915dd | 381 | { |
382 | if (*t == ';' && *(t + 1) == ';') | |
383 | { | |
384 | t += 2; | |
385 | } | |
386 | } | |
387 | ||
388 | if (t == NULL) | |
389 | { | |
390 | lldiagmsg (message ("Standard library: %s <cannot read creation information>", | |
28bf4b0b | 391 | fpath)); |
616915dd | 392 | } |
393 | else | |
394 | { | |
395 | char *tt; | |
396 | ||
397 | tt = strrchr (t, '\n'); | |
398 | if (tt != NULL) | |
399 | *tt = '\0'; | |
400 | ||
28bf4b0b | 401 | lldiagmsg (message ("Standard library: %s", fpath)); |
616915dd | 402 | lldiagmsg (message (" (created using %s)", cstring_fromChars (t))); |
403 | } | |
404 | ||
405 | sfree (ot); | |
406 | ||
dfd82dce | 407 | check (fileTable_closeFile (context_fileTable (), stdlib)); |
d5047b91 | 408 | stdlib = fileTable_openReadFile (context_fileTable (), fpath); |
616915dd | 409 | } |
410 | ||
411 | llassert (stdlib != NULL); | |
412 | ||
413 | fileloc_reallyFree (g_currentloc); | |
28bf4b0b | 414 | g_currentloc = fileloc_createLib (libname); |
415 | ||
416 | DPRINTF (("Loading: %s", fpath)); | |
616915dd | 417 | |
80489f0a | 418 | displayScanOpen (message ("loading standard library %s ", fpath)); |
419 | result = loadLCDFile (stdlib, fpath); | |
420 | displayScanClose (); | |
616915dd | 421 | |
dfd82dce | 422 | check (fileTable_closeFile (context_fileTable (), stdlib)); |
616915dd | 423 | } |
424 | } | |
425 | ||
28bf4b0b | 426 | cstring_free (libname); |
616915dd | 427 | return result; |
428 | } | |
429 | ||
430 | /*@constant int BUFLEN;@*/ | |
431 | # define BUFLEN 128 | |
432 | ||
433 | static bool | |
28bf4b0b | 434 | loadLCDFile (FILE *f, cstring name) |
616915dd | 435 | { |
436 | char buf[BUFLEN]; | |
437 | ||
438 | /* | |
1b8ae690 | 439 | ** Check version. Should be >= SPLINT_LIBVERSION |
616915dd | 440 | */ |
441 | ||
28bf4b0b | 442 | if (reader_readLine (f, buf, BUFLEN) == NULL |
11db3170 | 443 | || !mstring_equalPrefix (buf, LIBRARY_MARKER)) |
616915dd | 444 | { |
11db3170 | 445 | loadllmsg (message ("Load library %s is not in Splint library format. Attempting " |
28bf4b0b | 446 | "to continue without library.", name)); |
616915dd | 447 | return FALSE; |
448 | } | |
449 | ||
28bf4b0b | 450 | if (reader_readLine (f, buf, BUFLEN) != NULL) |
616915dd | 451 | { |
452 | if (!mstring_equalPrefix (buf, ";;")) | |
453 | { | |
11db3170 | 454 | loadllmsg (message ("Load library %s is not in Splint library format. Attempting " |
28bf4b0b | 455 | "to continue without library.", name)); |
616915dd | 456 | return FALSE; |
457 | } | |
458 | else if (mstring_equalPrefix (buf, ";;ctTable")) | |
459 | { | |
11db3170 | 460 | loadllmsg (message ("Load library %s is in obsolete Splint library format. Attempting " |
28bf4b0b | 461 | "to continue anyway, but results may be incorrect. Rebuild " |
1b8ae690 | 462 | "the library with this version of splint.", |
28bf4b0b | 463 | name)); |
616915dd | 464 | } |
465 | else | |
466 | { | |
467 | float version = 0.0; | |
468 | ||
11db3170 | 469 | if (sscanf (buf, ";;Splint %f", &version) != 1 |
470 | && (sscanf (buf, ";;LCLint %f", &version) != 1)) | |
616915dd | 471 | { |
11db3170 | 472 | loadllmsg (message ("Load library %s is not in Splint library format (missing version " |
28bf4b0b | 473 | "number). Attempting " |
474 | "to continue without library.", name)); | |
616915dd | 475 | return FALSE; |
476 | } | |
477 | else | |
478 | { | |
1b8ae690 | 479 | if ((SPLINT_LIBVERSION - version) >= FLT_EPSILON) |
616915dd | 480 | { |
481 | cstring vname; | |
482 | char *nl = strchr (buf, '\n'); | |
483 | ||
28bf4b0b | 484 | *nl = '\0'; |
616915dd | 485 | |
486 | vname = cstring_fromChars (buf + 9); | |
487 | ||
1b8ae690 | 488 | loadllmsg (message ("Load library %s is in obsolete Splint library " |
616915dd | 489 | "format (version %s). Attempting " |
490 | "to continue anyway, but results may be incorrect. Rebuild " | |
1b8ae690 | 491 | "the library with this version of splint.", |
616915dd | 492 | name, vname)); |
493 | } | |
494 | else | |
495 | { | |
28bf4b0b | 496 | if (reader_readLine (f, buf, BUFLEN) == NULL) |
616915dd | 497 | { |
11db3170 | 498 | loadllmsg (message ("Load library %s is not in Splint library " |
616915dd | 499 | "format (missing library code). Attempting " |
500 | "to continue without library.", name)); | |
501 | return FALSE; | |
502 | } | |
503 | else | |
504 | { | |
505 | int lib; | |
506 | ||
507 | if (sscanf (buf, ";;lib:%d", &lib) != 1) | |
508 | { | |
11db3170 | 509 | loadllmsg (message ("Load library %s is not in Splint library " |
616915dd | 510 | "format (missing library code). Attempting " |
511 | "to continue without library.", name)); | |
512 | return FALSE; | |
513 | } | |
514 | else | |
515 | { | |
516 | flagcode code = (flagcode) lib; | |
517 | ||
518 | if (flagcode_isLibraryFlag (code)) | |
519 | { | |
520 | if (context_doMerge ()) | |
521 | { | |
522 | context_setLibrary (code); | |
523 | } | |
524 | } | |
525 | else | |
526 | { | |
28bf4b0b | 527 | loadllmsg (message ("Load library %s has invalid library code (%s). " |
616915dd | 528 | "Attempting to continue without library.", |
28bf4b0b | 529 | name, |
530 | flagcode_unparse (code))); | |
616915dd | 531 | |
532 | return FALSE; | |
533 | } | |
534 | } | |
535 | } | |
536 | } | |
537 | } | |
538 | } | |
539 | } | |
540 | else | |
541 | { | |
11db3170 | 542 | loadllmsg (message ("Load library %s is not in Splint library format (missing lines). " |
616915dd | 543 | "Attempting to continue without library.", name)); |
544 | return FALSE; | |
545 | } | |
546 | ||
547 | ctype_loadTable (f); | |
548 | printDot (); | |
549 | ||
550 | typeIdSet_loadTable (f); | |
551 | printDot (); | |
552 | ||
553 | usymtab_load (f); | |
554 | printDot (); | |
555 | ||
556 | context_loadModuleAccess (f); | |
557 | printDot (); | |
558 | ||
559 | return TRUE; | |
560 | } | |
561 | ||
562 | /* | |
563 | ** load state from file created by dumpState | |
564 | */ | |
565 | ||
566 | void | |
567 | loadState (cstring cfname) | |
568 | { | |
569 | FILE *f; | |
28bf4b0b | 570 | cstring fname = fileLib_addExtension (cfname, cstring_makeLiteralTemp (DUMP_SUFFIX)); |
616915dd | 571 | |
d5047b91 | 572 | f = fileTable_openReadFile (context_fileTable (), fname); |
616915dd | 573 | |
574 | if (f == NULL) | |
575 | { | |
80489f0a | 576 | displayScanClose (); |
28bf4b0b | 577 | llfatalerror (message ("Cannot open dump file for loading: %s", |
578 | fname)); | |
616915dd | 579 | } |
580 | else | |
581 | { | |
582 | fileloc_reallyFree (g_currentloc); | |
28bf4b0b | 583 | g_currentloc = fileloc_createLib (cfname); |
616915dd | 584 | |
28bf4b0b | 585 | if (!loadLCDFile (f, cfname)) |
616915dd | 586 | { |
587 | if (!loadStandardState ()) | |
588 | { | |
589 | ctype_initTable (); | |
590 | } | |
591 | } | |
592 | ||
dfd82dce | 593 | check (fileTable_closeFile (context_fileTable (), f)); |
616915dd | 594 | } |
595 | ||
28bf4b0b | 596 | /* usymtab_printAll (); */ |
597 | cstring_free (fname); | |
616915dd | 598 | } |
599 |