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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 | { | |
172 | ||
173 | for (i = 0; i < NUMLIBS; i++) | |
174 | { | |
175 | if (mstring_equal (libname, stdlibs[i])) | |
176 | { | |
28bf4b0b | 177 | sfree (xname); |
616915dd | 178 | return TRUE; |
179 | } | |
180 | } | |
181 | } | |
182 | ||
183 | for (i = 0; i < NUMPOSIXLIBS; i++) | |
184 | { | |
7ac543fa | 185 | if (strchr (posixlibs[i], CONNECTCHAR) != NULL |
186 | # if defined (OS2) | |
187 | || strchr (posixlibs[i], ALTCONNECTCHAR) != NULL | |
188 | # endif | |
189 | ) | |
616915dd | 190 | { |
191 | char *ptr; | |
192 | ||
7ac543fa | 193 | DPRINTF (("xname: %s, posix: %s", xname, posixlibs[i])); |
28bf4b0b | 194 | if ((ptr = strstr (xname, posixlibs[i])) != NULL) |
616915dd | 195 | { |
196 | if (ptr[strlen (posixlibs[i])] == '\0') | |
197 | { | |
198 | posixlib = TRUE; | |
199 | matchname = ptr; | |
200 | break; | |
201 | } | |
202 | else | |
203 | { | |
204 | ; /* no match */ | |
205 | } | |
206 | } | |
207 | } | |
208 | else | |
209 | { | |
210 | if (mstring_equal (libname, posixlibs[i])) | |
211 | { | |
212 | posixlib = TRUE; | |
213 | matchname = libname; | |
214 | break; | |
215 | } | |
216 | /*@-branchstate@*/ | |
217 | } | |
218 | } /*@=branchstate@*/ | |
219 | ||
220 | if (posixlib) | |
221 | { | |
222 | if (context_usingPosixLibrary ()) | |
223 | { | |
224 | if (context_getFlag (FLG_SKIPPOSIXHEADERS)) | |
225 | { | |
7ebcc5bb | 226 | cstring_free (xname); |
393e573f | 227 | /*@-nullstate@*/ |
228 | return TRUE; | |
229 | /*@=nullstate@*/ | |
b73d1009 | 230 | |
393e573f | 231 | /* evans 2002-03-02: |
b73d1009 | 232 | the returned reference is possibly null, |
233 | but this should not change the null state of the parameter | |
393e573f | 234 | */ |
616915dd | 235 | } |
236 | } | |
237 | else | |
238 | { | |
239 | fileloc tmp = fileloc_makePreprocPrevious (g_currentloc); | |
240 | ||
241 | voptgenerror | |
242 | (FLG_WARNPOSIX, | |
1d239d69 | 243 | message ("Include file <%s.h> matches the name of a " |
616915dd | 244 | "POSIX library, but the POSIX library is " |
245 | "not being used. Consider using +posixlib " | |
246 | "or +posixstrictlib to select the POSIX " | |
247 | "library, or -warnposix " | |
248 | "to suppress this message.", | |
249 | cstring_fromChars (matchname)), | |
250 | tmp); | |
251 | ||
252 | fileloc_free (tmp); | |
253 | } | |
254 | } | |
255 | ||
28bf4b0b | 256 | cstring_free (xname); |
257 | /*@noaccess cstring@*/ | |
b73d1009 | 258 | /*@-nullstate@*/ /* same problem as above */ |
616915dd | 259 | return FALSE; |
393e573f | 260 | /*@=nullstate@*/ |
616915dd | 261 | } |
262 | ||
263 | static void printDot (void) | |
264 | { | |
80489f0a | 265 | displayScanContinue (cstring_makeLiteralTemp (".")); |
616915dd | 266 | } |
267 | ||
268 | void | |
269 | dumpState (cstring cfname) | |
270 | { | |
271 | FILE *f; | |
28bf4b0b | 272 | cstring fname = fileLib_addExtension (cfname, cstring_makeLiteralTemp (DUMP_SUFFIX)); |
616915dd | 273 | |
d5047b91 | 274 | f = fileTable_openWriteFile (context_fileTable (), fname); |
616915dd | 275 | |
80489f0a | 276 | displayScanOpen (message ("Dumping to %s ", fname)); |
616915dd | 277 | |
278 | if (f == NULL) | |
279 | { | |
efd360a3 | 280 | lldiagmsg (message ("Cannot open dump file for writing: %s", fname)); |
616915dd | 281 | } |
282 | else | |
283 | { | |
284 | /* | |
285 | ** sequence is convulted --- must call usymtab_prepareDump before | |
286 | ** dumping ctype table to convert type uid's | |
287 | */ | |
288 | ||
289 | printDot (); | |
290 | ||
28bf4b0b | 291 | /* |
292 | DPRINTF (("Before prepare dump:")); | |
293 | ctype_printTable (); | |
294 | DPRINTF (("Preparing dump...")); | |
295 | */ | |
296 | ||
616915dd | 297 | usymtab_prepareDump (); |
298 | ||
299 | /* | |
28bf4b0b | 300 | ** Be careful, these lines must match loadLCDFile checking. |
616915dd | 301 | */ |
302 | ||
11db3170 | 303 | fprintf (f, "%s %s\n", LIBRARY_MARKER, cstring_toCharsSafe (fname)); |
e5081f8c | 304 | fprintf (f, ";;Splint %f\n", SPLINT_LIBVERSION); |
616915dd | 305 | fprintf (f, ";;lib:%d\n", (int) context_getLibrary ()); |
306 | fprintf (f, ";;ctTable\n"); | |
28bf4b0b | 307 | |
308 | DPRINTF (("Dumping types...")); | |
616915dd | 309 | printDot (); |
28bf4b0b | 310 | ctype_dumpTable (f); |
616915dd | 311 | printDot (); |
28bf4b0b | 312 | |
313 | DPRINTF (("Dumping type sets...")); | |
616915dd | 314 | fprintf (f, ";;tistable\n"); |
315 | typeIdSet_dumpTable (f); | |
316 | printDot (); | |
28bf4b0b | 317 | |
318 | DPRINTF (("Dumping usymtab...")); | |
319 | fprintf (f, ";;symTable\n"); | |
616915dd | 320 | usymtab_dump (f); |
321 | printDot (); | |
322 | ||
28bf4b0b | 323 | DPRINTF (("Dumping modules...")); |
616915dd | 324 | fprintf (f, ";; Modules access\n"); |
325 | context_dumpModuleAccess (f); | |
326 | fprintf (f, ";;End\n"); | |
dfd82dce | 327 | check (fileTable_closeFile (context_fileTable (), f)); |
616915dd | 328 | } |
329 | ||
80489f0a | 330 | displayScanClose (); |
28bf4b0b | 331 | cstring_free (fname); |
616915dd | 332 | } |
333 | ||
334 | bool | |
335 | loadStandardState () | |
336 | { | |
28bf4b0b | 337 | cstring fpath; |
616915dd | 338 | FILE *stdlib; |
339 | bool result; | |
28bf4b0b | 340 | cstring libname = fileLib_addExtension (context_selectedLibrary (), |
341 | cstring_makeLiteralTemp (DUMP_SUFFIX)); | |
616915dd | 342 | |
343 | if (osd_findOnLarchPath (libname, &fpath) != OSD_FILEFOUND) | |
344 | { | |
345 | lldiagmsg (message ("Cannot find %sstandard library: %s", | |
346 | cstring_makeLiteralTemp | |
347 | (context_getFlag (FLG_STRICTLIB) ? "strict " | |
348 | : (context_getFlag (FLG_UNIXLIB) ? "unix " : "")), | |
28bf4b0b | 349 | libname)); |
616915dd | 350 | lldiagmsg (cstring_makeLiteral (" Check LARCH_PATH environment variable.")); |
351 | result = FALSE; | |
352 | } | |
353 | else | |
354 | { | |
d5047b91 | 355 | stdlib = fileTable_openReadFile (context_fileTable (), fpath); |
616915dd | 356 | |
357 | if (stdlib == NULL) | |
358 | { | |
359 | lldiagmsg (message ("Cannot read standard library: %s", | |
28bf4b0b | 360 | fpath)); |
616915dd | 361 | lldiagmsg (cstring_makeLiteral (" Check LARCH_PATH environment variable.")); |
362 | ||
363 | result = FALSE; | |
364 | } | |
365 | else | |
366 | { | |
367 | if (context_getFlag (FLG_WHICHLIB)) | |
368 | { | |
369 | char *t = mstring_create (MAX_NAME_LENGTH); | |
370 | char *ot = t; | |
371 | ||
28bf4b0b | 372 | if ((t = reader_readLine (stdlib, t, MAX_NAME_LENGTH)) == NULL) |
616915dd | 373 | { |
374 | llfatalerror (cstring_makeLiteral ("Standard library format invalid")); | |
375 | } | |
376 | ||
28bf4b0b | 377 | if ((t = reader_readLine (stdlib, t, MAX_NAME_LENGTH)) != NULL) |
616915dd | 378 | { |
379 | if (*t == ';' && *(t + 1) == ';') | |
380 | { | |
381 | t += 2; | |
382 | } | |
383 | } | |
384 | ||
385 | if (t == NULL) | |
386 | { | |
387 | lldiagmsg (message ("Standard library: %s <cannot read creation information>", | |
28bf4b0b | 388 | fpath)); |
616915dd | 389 | } |
390 | else | |
391 | { | |
392 | char *tt; | |
393 | ||
394 | tt = strrchr (t, '\n'); | |
395 | if (tt != NULL) | |
396 | *tt = '\0'; | |
397 | ||
28bf4b0b | 398 | lldiagmsg (message ("Standard library: %s", fpath)); |
616915dd | 399 | lldiagmsg (message (" (created using %s)", cstring_fromChars (t))); |
400 | } | |
401 | ||
402 | sfree (ot); | |
403 | ||
dfd82dce | 404 | check (fileTable_closeFile (context_fileTable (), stdlib)); |
d5047b91 | 405 | stdlib = fileTable_openReadFile (context_fileTable (), fpath); |
616915dd | 406 | } |
407 | ||
408 | llassert (stdlib != NULL); | |
409 | ||
410 | fileloc_reallyFree (g_currentloc); | |
28bf4b0b | 411 | g_currentloc = fileloc_createLib (libname); |
412 | ||
413 | DPRINTF (("Loading: %s", fpath)); | |
616915dd | 414 | |
80489f0a | 415 | displayScanOpen (message ("loading standard library %s ", fpath)); |
416 | result = loadLCDFile (stdlib, fpath); | |
417 | displayScanClose (); | |
616915dd | 418 | |
dfd82dce | 419 | check (fileTable_closeFile (context_fileTable (), stdlib)); |
616915dd | 420 | } |
421 | } | |
422 | ||
28bf4b0b | 423 | cstring_free (libname); |
616915dd | 424 | return result; |
425 | } | |
426 | ||
427 | /*@constant int BUFLEN;@*/ | |
428 | # define BUFLEN 128 | |
429 | ||
430 | static bool | |
28bf4b0b | 431 | loadLCDFile (FILE *f, cstring name) |
616915dd | 432 | { |
433 | char buf[BUFLEN]; | |
434 | ||
435 | /* | |
1b8ae690 | 436 | ** Check version. Should be >= SPLINT_LIBVERSION |
616915dd | 437 | */ |
438 | ||
28bf4b0b | 439 | if (reader_readLine (f, buf, BUFLEN) == NULL |
11db3170 | 440 | || !mstring_equalPrefix (buf, LIBRARY_MARKER)) |
616915dd | 441 | { |
11db3170 | 442 | loadllmsg (message ("Load library %s is not in Splint library format. Attempting " |
28bf4b0b | 443 | "to continue without library.", name)); |
616915dd | 444 | return FALSE; |
445 | } | |
446 | ||
28bf4b0b | 447 | if (reader_readLine (f, buf, BUFLEN) != NULL) |
616915dd | 448 | { |
449 | if (!mstring_equalPrefix (buf, ";;")) | |
450 | { | |
11db3170 | 451 | loadllmsg (message ("Load library %s is not in Splint library format. Attempting " |
28bf4b0b | 452 | "to continue without library.", name)); |
616915dd | 453 | return FALSE; |
454 | } | |
455 | else if (mstring_equalPrefix (buf, ";;ctTable")) | |
456 | { | |
11db3170 | 457 | loadllmsg (message ("Load library %s is in obsolete Splint library format. Attempting " |
28bf4b0b | 458 | "to continue anyway, but results may be incorrect. Rebuild " |
1b8ae690 | 459 | "the library with this version of splint.", |
28bf4b0b | 460 | name)); |
616915dd | 461 | } |
462 | else | |
463 | { | |
464 | float version = 0.0; | |
465 | ||
11db3170 | 466 | if (sscanf (buf, ";;Splint %f", &version) != 1 |
467 | && (sscanf (buf, ";;LCLint %f", &version) != 1)) | |
616915dd | 468 | { |
11db3170 | 469 | loadllmsg (message ("Load library %s is not in Splint library format (missing version " |
28bf4b0b | 470 | "number). Attempting " |
471 | "to continue without library.", name)); | |
616915dd | 472 | return FALSE; |
473 | } | |
474 | else | |
475 | { | |
1b8ae690 | 476 | if ((SPLINT_LIBVERSION - version) >= FLT_EPSILON) |
616915dd | 477 | { |
478 | cstring vname; | |
479 | char *nl = strchr (buf, '\n'); | |
480 | ||
28bf4b0b | 481 | *nl = '\0'; |
616915dd | 482 | |
483 | vname = cstring_fromChars (buf + 9); | |
484 | ||
1b8ae690 | 485 | loadllmsg (message ("Load library %s is in obsolete Splint library " |
e5081f8c | 486 | "format (version %f (%s), expecting version %f). Attempting " |
616915dd | 487 | "to continue anyway, but results may be incorrect. Rebuild " |
1b8ae690 | 488 | "the library with this version of splint.", |
e5081f8c | 489 | name, |
490 | version, | |
491 | vname, | |
492 | SPLINT_LIBVERSION)); | |
616915dd | 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 |