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616915dd | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
c59f5181 | 3 | ** Copyright (C) 1994-2003 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" |
b73d1009 | 40 | # include "basic.h" |
616915dd | 41 | # include "osd.h" |
6fcd0b1e | 42 | # include "version.h" |
616915dd | 43 | |
616915dd | 44 | # include "gram.h" |
616915dd | 45 | # include "lclscan.h" |
616915dd | 46 | |
616915dd | 47 | # include "lcllib.h" |
48 | # include "llmain.h" | |
49 | # include "portab.h" | |
50 | ||
51 | /*@-incondefs@*/ /*@-redecl@*/ | |
15b3d2b2 | 52 | extern /*:open:*/ /*@dependent@*/ FILE *yyin; |
616915dd | 53 | /*@=incondefs@*/ /*@=redecl@*/ |
54 | ||
55 | /*@constant int NUMLIBS; @*/ | |
45569d72 | 56 | # define NUMLIBS 25 |
616915dd | 57 | |
58 | /*@constant int NUMPOSIXLIBS; @*/ | |
d1eb0f0f | 59 | # define NUMPOSIXLIBS 18 |
616915dd | 60 | |
61 | static ob_mstring posixlibs[NUMPOSIXLIBS] = | |
62 | { | |
616915dd | 63 | "dirent", |
64 | "fcntl", | |
65 | "grp", | |
66 | "pwd", | |
b072092f | 67 | "regex", |
d1eb0f0f | 68 | "sys/stat", |
616915dd | 69 | "sys/times", |
d1eb0f0f | 70 | "sys/types", |
71 | "netdb", /* unix */ | |
72 | "netinet/in", /* unix */ | |
73 | "sys/resource", /* unix */ | |
74 | "sys/socket", /* not posix */ | |
75 | "sys/syslog", /* not posix */ | |
616915dd | 76 | "sys/utsname", |
77 | "sys/wait", | |
78 | "termios", | |
79 | "unistd", | |
80 | "utime" | |
81 | } ; | |
82 | ||
83 | static ob_mstring stdlibs[NUMLIBS] = | |
84 | { | |
85 | "assert", | |
45569d72 | 86 | "complex" |
616915dd | 87 | "ctype", |
88 | "errno", | |
45569d72 | 89 | "fenv", |
90 | "float", | |
91 | "inttypes", | |
92 | "iso646", | |
616915dd | 93 | "limits", |
94 | "locale", | |
95 | "math", | |
96 | "setjmp", | |
97 | "signal", | |
98 | "stdarg", | |
45569d72 | 99 | "stdbool", |
616915dd | 100 | "stddef", |
45569d72 | 101 | "stdint", |
616915dd | 102 | "stdio", |
103 | "stdlib", | |
616915dd | 104 | "string", |
45569d72 | 105 | "strings", /* some systems use this...they shouldn't */ |
106 | "tgmath", | |
616915dd | 107 | "time", |
45569d72 | 108 | "wchar", |
109 | "wctype" | |
616915dd | 110 | } ; |
111 | ||
28bf4b0b | 112 | static bool loadLCDFile (FILE * p_f, cstring p_name); |
616915dd | 113 | |
114 | bool | |
115 | lcllib_isSkipHeader (cstring sname) | |
116 | { | |
117 | int i; | |
118 | bool posixlib = FALSE; | |
119 | char *libname; | |
616915dd | 120 | char *matchname; |
28bf4b0b | 121 | cstring xname; |
616915dd | 122 | |
123 | llassert (cstring_isDefined (sname)); | |
28bf4b0b | 124 | xname = fileLib_withoutExtension (sname, cstring_makeLiteralTemp (".h")); |
616915dd | 125 | |
d1eb0f0f | 126 | DPRINTF (("Include? %s", sname)); |
127 | ||
28bf4b0b | 128 | /*@access cstring@*/ |
129 | llassert (cstring_isDefined (xname)); | |
7ac543fa | 130 | # if defined (OS2) |
131 | { | |
132 | /* Posixlibs use forward slashes, so we use them here, too */ | |
133 | cstring_replaceAll (xname, '\\', '/'); | |
134 | libname = strrchr (xname, '/'); | |
135 | DPRINTF (("libname: %s", libname)); | |
136 | } | |
137 | # else | |
28bf4b0b | 138 | libname = strrchr (xname, CONNECTCHAR); |
7ac543fa | 139 | # endif |
616915dd | 140 | matchname = libname; |
141 | ||
142 | if (libname == NULL) | |
143 | { | |
28bf4b0b | 144 | libname = xname; |
616915dd | 145 | } |
146 | else | |
147 | { | |
148 | libname++; | |
149 | /*@-branchstate@*/ | |
150 | } | |
151 | /*@=branchstate@*/ | |
152 | ||
153 | if (mstring_equal (libname, "varargs")) | |
154 | { | |
155 | fileloc tmp = fileloc_makePreprocPrevious (g_currentloc); | |
156 | ||
157 | voptgenerror | |
158 | (FLG_USEVARARGS, | |
1d239d69 | 159 | message ("Include file <%s.h> is inconsistent with " |
616915dd | 160 | "ANSI library (should use <stdarg.h>)", |
161 | cstring_fromChars (libname)), | |
162 | tmp); | |
163 | ||
164 | fileloc_free (tmp); | |
7ebcc5bb | 165 | cstring_free (xname); |
616915dd | 166 | return TRUE; |
167 | } | |
168 | ||
abd7f895 | 169 | if (context_getFlag (FLG_SKIPISOHEADERS) |
616915dd | 170 | && context_usingAnsiLibrary ()) |
171 | { | |
616915dd | 172 | for (i = 0; i < NUMLIBS; i++) |
173 | { | |
174 | if (mstring_equal (libname, stdlibs[i])) | |
175 | { | |
28bf4b0b | 176 | sfree (xname); |
616915dd | 177 | return TRUE; |
178 | } | |
179 | } | |
180 | } | |
181 | ||
182 | for (i = 0; i < NUMPOSIXLIBS; i++) | |
183 | { | |
7ac543fa | 184 | if (strchr (posixlibs[i], CONNECTCHAR) != NULL |
185 | # if defined (OS2) | |
186 | || strchr (posixlibs[i], ALTCONNECTCHAR) != NULL | |
187 | # endif | |
188 | ) | |
616915dd | 189 | { |
190 | char *ptr; | |
191 | ||
7ac543fa | 192 | DPRINTF (("xname: %s, posix: %s", xname, posixlibs[i])); |
28bf4b0b | 193 | if ((ptr = strstr (xname, posixlibs[i])) != NULL) |
616915dd | 194 | { |
195 | if (ptr[strlen (posixlibs[i])] == '\0') | |
196 | { | |
197 | posixlib = TRUE; | |
198 | matchname = ptr; | |
199 | break; | |
200 | } | |
201 | else | |
202 | { | |
203 | ; /* no match */ | |
204 | } | |
205 | } | |
206 | } | |
207 | else | |
208 | { | |
209 | if (mstring_equal (libname, posixlibs[i])) | |
210 | { | |
211 | posixlib = TRUE; | |
212 | matchname = libname; | |
213 | break; | |
214 | } | |
215 | /*@-branchstate@*/ | |
216 | } | |
217 | } /*@=branchstate@*/ | |
218 | ||
219 | if (posixlib) | |
220 | { | |
221 | if (context_usingPosixLibrary ()) | |
222 | { | |
223 | if (context_getFlag (FLG_SKIPPOSIXHEADERS)) | |
224 | { | |
7ebcc5bb | 225 | cstring_free (xname); |
393e573f | 226 | /*@-nullstate@*/ |
227 | return TRUE; | |
228 | /*@=nullstate@*/ | |
b73d1009 | 229 | |
393e573f | 230 | /* evans 2002-03-02: |
b73d1009 | 231 | the returned reference is possibly null, |
232 | but this should not change the null state of the parameter | |
393e573f | 233 | */ |
616915dd | 234 | } |
235 | } | |
236 | else | |
237 | { | |
238 | fileloc tmp = fileloc_makePreprocPrevious (g_currentloc); | |
239 | ||
240 | voptgenerror | |
241 | (FLG_WARNPOSIX, | |
1d239d69 | 242 | message ("Include file <%s.h> matches the name of a " |
616915dd | 243 | "POSIX library, but the POSIX library is " |
244 | "not being used. Consider using +posixlib " | |
245 | "or +posixstrictlib to select the POSIX " | |
246 | "library, or -warnposix " | |
247 | "to suppress this message.", | |
248 | cstring_fromChars (matchname)), | |
249 | tmp); | |
250 | ||
251 | fileloc_free (tmp); | |
252 | } | |
253 | } | |
254 | ||
28bf4b0b | 255 | cstring_free (xname); |
256 | /*@noaccess cstring@*/ | |
b73d1009 | 257 | /*@-nullstate@*/ /* same problem as above */ |
616915dd | 258 | return FALSE; |
393e573f | 259 | /*@=nullstate@*/ |
616915dd | 260 | } |
261 | ||
262 | static void printDot (void) | |
263 | { | |
80489f0a | 264 | displayScanContinue (cstring_makeLiteralTemp (".")); |
616915dd | 265 | } |
266 | ||
267 | void | |
268 | dumpState (cstring cfname) | |
269 | { | |
270 | FILE *f; | |
28bf4b0b | 271 | cstring fname = fileLib_addExtension (cfname, cstring_makeLiteralTemp (DUMP_SUFFIX)); |
616915dd | 272 | |
d5047b91 | 273 | f = fileTable_openWriteFile (context_fileTable (), fname); |
616915dd | 274 | |
80489f0a | 275 | displayScanOpen (message ("Dumping to %s ", fname)); |
616915dd | 276 | |
277 | if (f == NULL) | |
278 | { | |
efd360a3 | 279 | lldiagmsg (message ("Cannot open dump file for writing: %s", fname)); |
616915dd | 280 | } |
281 | else | |
282 | { | |
283 | /* | |
284 | ** sequence is convulted --- must call usymtab_prepareDump before | |
285 | ** dumping ctype table to convert type uid's | |
286 | */ | |
287 | ||
288 | printDot (); | |
289 | ||
28bf4b0b | 290 | /* |
291 | DPRINTF (("Before prepare dump:")); | |
292 | ctype_printTable (); | |
293 | DPRINTF (("Preparing dump...")); | |
294 | */ | |
295 | ||
616915dd | 296 | usymtab_prepareDump (); |
297 | ||
298 | /* | |
28bf4b0b | 299 | ** Be careful, these lines must match loadLCDFile checking. |
616915dd | 300 | */ |
301 | ||
11db3170 | 302 | fprintf (f, "%s %s\n", LIBRARY_MARKER, cstring_toCharsSafe (fname)); |
e5081f8c | 303 | fprintf (f, ";;Splint %f\n", SPLINT_LIBVERSION); |
616915dd | 304 | fprintf (f, ";;lib:%d\n", (int) context_getLibrary ()); |
305 | fprintf (f, ";;ctTable\n"); | |
28bf4b0b | 306 | |
307 | DPRINTF (("Dumping types...")); | |
616915dd | 308 | printDot (); |
28bf4b0b | 309 | ctype_dumpTable (f); |
616915dd | 310 | printDot (); |
28bf4b0b | 311 | |
312 | DPRINTF (("Dumping type sets...")); | |
616915dd | 313 | fprintf (f, ";;tistable\n"); |
314 | typeIdSet_dumpTable (f); | |
315 | printDot (); | |
28bf4b0b | 316 | |
317 | DPRINTF (("Dumping usymtab...")); | |
318 | fprintf (f, ";;symTable\n"); | |
616915dd | 319 | usymtab_dump (f); |
320 | printDot (); | |
321 | ||
28bf4b0b | 322 | DPRINTF (("Dumping modules...")); |
616915dd | 323 | fprintf (f, ";; Modules access\n"); |
324 | context_dumpModuleAccess (f); | |
325 | fprintf (f, ";;End\n"); | |
dfd82dce | 326 | check (fileTable_closeFile (context_fileTable (), f)); |
616915dd | 327 | } |
328 | ||
80489f0a | 329 | displayScanClose (); |
28bf4b0b | 330 | cstring_free (fname); |
616915dd | 331 | } |
332 | ||
333 | bool | |
334 | loadStandardState () | |
335 | { | |
28bf4b0b | 336 | cstring fpath; |
616915dd | 337 | FILE *stdlib; |
338 | bool result; | |
28bf4b0b | 339 | cstring libname = fileLib_addExtension (context_selectedLibrary (), |
340 | cstring_makeLiteralTemp (DUMP_SUFFIX)); | |
616915dd | 341 | |
342 | if (osd_findOnLarchPath (libname, &fpath) != OSD_FILEFOUND) | |
343 | { | |
344 | lldiagmsg (message ("Cannot find %sstandard library: %s", | |
345 | cstring_makeLiteralTemp | |
346 | (context_getFlag (FLG_STRICTLIB) ? "strict " | |
347 | : (context_getFlag (FLG_UNIXLIB) ? "unix " : "")), | |
28bf4b0b | 348 | libname)); |
616915dd | 349 | lldiagmsg (cstring_makeLiteral (" Check LARCH_PATH environment variable.")); |
350 | result = FALSE; | |
351 | } | |
352 | else | |
353 | { | |
d5047b91 | 354 | stdlib = fileTable_openReadFile (context_fileTable (), fpath); |
616915dd | 355 | |
356 | if (stdlib == NULL) | |
357 | { | |
358 | lldiagmsg (message ("Cannot read standard library: %s", | |
28bf4b0b | 359 | fpath)); |
616915dd | 360 | lldiagmsg (cstring_makeLiteral (" Check LARCH_PATH environment variable.")); |
361 | ||
362 | result = FALSE; | |
363 | } | |
364 | else | |
365 | { | |
366 | if (context_getFlag (FLG_WHICHLIB)) | |
367 | { | |
368 | char *t = mstring_create (MAX_NAME_LENGTH); | |
369 | char *ot = t; | |
370 | ||
28bf4b0b | 371 | if ((t = reader_readLine (stdlib, t, MAX_NAME_LENGTH)) == NULL) |
616915dd | 372 | { |
373 | llfatalerror (cstring_makeLiteral ("Standard library format invalid")); | |
374 | } | |
375 | ||
28bf4b0b | 376 | if ((t = reader_readLine (stdlib, t, MAX_NAME_LENGTH)) != NULL) |
616915dd | 377 | { |
378 | if (*t == ';' && *(t + 1) == ';') | |
379 | { | |
380 | t += 2; | |
381 | } | |
382 | } | |
383 | ||
384 | if (t == NULL) | |
385 | { | |
386 | lldiagmsg (message ("Standard library: %s <cannot read creation information>", | |
28bf4b0b | 387 | fpath)); |
616915dd | 388 | } |
389 | else | |
390 | { | |
391 | char *tt; | |
392 | ||
393 | tt = strrchr (t, '\n'); | |
394 | if (tt != NULL) | |
395 | *tt = '\0'; | |
396 | ||
28bf4b0b | 397 | lldiagmsg (message ("Standard library: %s", fpath)); |
616915dd | 398 | lldiagmsg (message (" (created using %s)", cstring_fromChars (t))); |
399 | } | |
400 | ||
401 | sfree (ot); | |
402 | ||
dfd82dce | 403 | check (fileTable_closeFile (context_fileTable (), stdlib)); |
d5047b91 | 404 | stdlib = fileTable_openReadFile (context_fileTable (), fpath); |
616915dd | 405 | } |
406 | ||
407 | llassert (stdlib != NULL); | |
408 | ||
409 | fileloc_reallyFree (g_currentloc); | |
28bf4b0b | 410 | g_currentloc = fileloc_createLib (libname); |
411 | ||
412 | DPRINTF (("Loading: %s", fpath)); | |
616915dd | 413 | |
80489f0a | 414 | displayScanOpen (message ("loading standard library %s ", fpath)); |
415 | result = loadLCDFile (stdlib, fpath); | |
416 | displayScanClose (); | |
616915dd | 417 | |
dfd82dce | 418 | check (fileTable_closeFile (context_fileTable (), stdlib)); |
616915dd | 419 | } |
420 | } | |
421 | ||
28bf4b0b | 422 | cstring_free (libname); |
616915dd | 423 | return result; |
424 | } | |
425 | ||
426 | /*@constant int BUFLEN;@*/ | |
427 | # define BUFLEN 128 | |
428 | ||
429 | static bool | |
28bf4b0b | 430 | loadLCDFile (FILE *f, cstring name) |
616915dd | 431 | { |
432 | char buf[BUFLEN]; | |
433 | ||
434 | /* | |
1b8ae690 | 435 | ** Check version. Should be >= SPLINT_LIBVERSION |
616915dd | 436 | */ |
437 | ||
28bf4b0b | 438 | if (reader_readLine (f, buf, BUFLEN) == NULL |
11db3170 | 439 | || !mstring_equalPrefix (buf, LIBRARY_MARKER)) |
616915dd | 440 | { |
11db3170 | 441 | loadllmsg (message ("Load library %s is not in Splint library format. Attempting " |
28bf4b0b | 442 | "to continue without library.", name)); |
616915dd | 443 | return FALSE; |
444 | } | |
445 | ||
28bf4b0b | 446 | if (reader_readLine (f, buf, BUFLEN) != NULL) |
616915dd | 447 | { |
448 | if (!mstring_equalPrefix (buf, ";;")) | |
449 | { | |
11db3170 | 450 | loadllmsg (message ("Load library %s is not in Splint library format. Attempting " |
28bf4b0b | 451 | "to continue without library.", name)); |
616915dd | 452 | return FALSE; |
453 | } | |
454 | else if (mstring_equalPrefix (buf, ";;ctTable")) | |
455 | { | |
11db3170 | 456 | loadllmsg (message ("Load library %s is in obsolete Splint library format. Attempting " |
28bf4b0b | 457 | "to continue anyway, but results may be incorrect. Rebuild " |
1b8ae690 | 458 | "the library with this version of splint.", |
28bf4b0b | 459 | name)); |
616915dd | 460 | } |
461 | else | |
462 | { | |
463 | float version = 0.0; | |
464 | ||
11db3170 | 465 | if (sscanf (buf, ";;Splint %f", &version) != 1 |
466 | && (sscanf (buf, ";;LCLint %f", &version) != 1)) | |
616915dd | 467 | { |
11db3170 | 468 | loadllmsg (message ("Load library %s is not in Splint library format (missing version " |
28bf4b0b | 469 | "number). Attempting " |
470 | "to continue without library.", name)); | |
616915dd | 471 | return FALSE; |
472 | } | |
473 | else | |
474 | { | |
1b8ae690 | 475 | if ((SPLINT_LIBVERSION - version) >= FLT_EPSILON) |
616915dd | 476 | { |
477 | cstring vname; | |
478 | char *nl = strchr (buf, '\n'); | |
479 | ||
28bf4b0b | 480 | *nl = '\0'; |
616915dd | 481 | |
482 | vname = cstring_fromChars (buf + 9); | |
483 | ||
1b8ae690 | 484 | loadllmsg (message ("Load library %s is in obsolete Splint library " |
e5081f8c | 485 | "format (version %f (%s), expecting version %f). Attempting " |
616915dd | 486 | "to continue anyway, but results may be incorrect. Rebuild " |
1b8ae690 | 487 | "the library with this version of splint.", |
e5081f8c | 488 | name, |
489 | version, | |
490 | vname, | |
491 | SPLINT_LIBVERSION)); | |
616915dd | 492 | } |
493 | else | |
494 | { | |
28bf4b0b | 495 | if (reader_readLine (f, buf, BUFLEN) == NULL) |
616915dd | 496 | { |
11db3170 | 497 | loadllmsg (message ("Load library %s is not in Splint library " |
616915dd | 498 | "format (missing library code). Attempting " |
499 | "to continue without library.", name)); | |
500 | return FALSE; | |
501 | } | |
502 | else | |
503 | { | |
504 | int lib; | |
505 | ||
506 | if (sscanf (buf, ";;lib:%d", &lib) != 1) | |
507 | { | |
11db3170 | 508 | loadllmsg (message ("Load library %s is not in Splint library " |
616915dd | 509 | "format (missing library code). Attempting " |
510 | "to continue without library.", name)); | |
511 | return FALSE; | |
512 | } | |
513 | else | |
514 | { | |
515 | flagcode code = (flagcode) lib; | |
516 | ||
517 | if (flagcode_isLibraryFlag (code)) | |
518 | { | |
519 | if (context_doMerge ()) | |
520 | { | |
521 | context_setLibrary (code); | |
522 | } | |
523 | } | |
524 | else | |
525 | { | |
28bf4b0b | 526 | loadllmsg (message ("Load library %s has invalid library code (%s). " |
616915dd | 527 | "Attempting to continue without library.", |
28bf4b0b | 528 | name, |
529 | flagcode_unparse (code))); | |
616915dd | 530 | |
531 | return FALSE; | |
532 | } | |
533 | } | |
534 | } | |
535 | } | |
536 | } | |
537 | } | |
538 | } | |
539 | else | |
540 | { | |
11db3170 | 541 | loadllmsg (message ("Load library %s is not in Splint library format (missing lines). " |
616915dd | 542 | "Attempting to continue without library.", name)); |
543 | return FALSE; | |
544 | } | |
545 | ||
546 | ctype_loadTable (f); | |
547 | printDot (); | |
548 | ||
549 | typeIdSet_loadTable (f); | |
550 | printDot (); | |
551 | ||
552 | usymtab_load (f); | |
553 | printDot (); | |
554 | ||
555 | context_loadModuleAccess (f); | |
556 | printDot (); | |
557 | ||
558 | return TRUE; | |
559 | } | |
560 | ||
561 | /* | |
562 | ** load state from file created by dumpState | |
563 | */ | |
564 | ||
565 | void | |
566 | loadState (cstring cfname) | |
567 | { | |
568 | FILE *f; | |
28bf4b0b | 569 | cstring fname = fileLib_addExtension (cfname, cstring_makeLiteralTemp (DUMP_SUFFIX)); |
616915dd | 570 | |
d5047b91 | 571 | f = fileTable_openReadFile (context_fileTable (), fname); |
616915dd | 572 | |
573 | if (f == NULL) | |
574 | { | |
80489f0a | 575 | displayScanClose (); |
28bf4b0b | 576 | llfatalerror (message ("Cannot open dump file for loading: %s", |
577 | fname)); | |
616915dd | 578 | } |
579 | else | |
580 | { | |
581 | fileloc_reallyFree (g_currentloc); | |
28bf4b0b | 582 | g_currentloc = fileloc_createLib (cfname); |
616915dd | 583 | |
28bf4b0b | 584 | if (!loadLCDFile (f, cfname)) |
616915dd | 585 | { |
586 | if (!loadStandardState ()) | |
587 | { | |
588 | ctype_initTable (); | |
589 | } | |
590 | } | |
591 | ||
dfd82dce | 592 | check (fileTable_closeFile (context_fileTable (), f)); |
616915dd | 593 | } |
594 | ||
28bf4b0b | 595 | /* usymtab_printAll (); */ |
596 | cstring_free (fname); | |
616915dd | 597 | } |
598 |