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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" | |
616915dd | 49 | |
50 | /*@-incondefs@*/ /*@-redecl@*/ | |
15b3d2b2 | 51 | extern /*:open:*/ /*@dependent@*/ FILE *yyin; |
616915dd | 52 | /*@=incondefs@*/ /*@=redecl@*/ |
53 | ||
54 | /*@constant int NUMLIBS; @*/ | |
45569d72 | 55 | # define NUMLIBS 25 |
616915dd | 56 | |
57 | /*@constant int NUMPOSIXLIBS; @*/ | |
d1eb0f0f | 58 | # define NUMPOSIXLIBS 18 |
616915dd | 59 | |
60 | static ob_mstring posixlibs[NUMPOSIXLIBS] = | |
61 | { | |
616915dd | 62 | "dirent", |
63 | "fcntl", | |
64 | "grp", | |
65 | "pwd", | |
b072092f | 66 | "regex", |
d1eb0f0f | 67 | "sys/stat", |
616915dd | 68 | "sys/times", |
d1eb0f0f | 69 | "sys/types", |
70 | "netdb", /* unix */ | |
71 | "netinet/in", /* unix */ | |
72 | "sys/resource", /* unix */ | |
73 | "sys/socket", /* not posix */ | |
74 | "sys/syslog", /* not posix */ | |
616915dd | 75 | "sys/utsname", |
76 | "sys/wait", | |
77 | "termios", | |
78 | "unistd", | |
79 | "utime" | |
80 | } ; | |
81 | ||
82 | static ob_mstring stdlibs[NUMLIBS] = | |
83 | { | |
84 | "assert", | |
45569d72 | 85 | "complex" |
616915dd | 86 | "ctype", |
87 | "errno", | |
45569d72 | 88 | "fenv", |
89 | "float", | |
90 | "inttypes", | |
91 | "iso646", | |
616915dd | 92 | "limits", |
93 | "locale", | |
94 | "math", | |
95 | "setjmp", | |
96 | "signal", | |
97 | "stdarg", | |
45569d72 | 98 | "stdbool", |
616915dd | 99 | "stddef", |
45569d72 | 100 | "stdint", |
616915dd | 101 | "stdio", |
102 | "stdlib", | |
616915dd | 103 | "string", |
45569d72 | 104 | "strings", /* some systems use this...they shouldn't */ |
105 | "tgmath", | |
616915dd | 106 | "time", |
45569d72 | 107 | "wchar", |
108 | "wctype" | |
616915dd | 109 | } ; |
110 | ||
28bf4b0b | 111 | static bool loadLCDFile (FILE * p_f, cstring p_name); |
616915dd | 112 | |
113 | bool | |
114 | lcllib_isSkipHeader (cstring sname) | |
115 | { | |
116 | int i; | |
117 | bool posixlib = FALSE; | |
118 | char *libname; | |
616915dd | 119 | char *matchname; |
28bf4b0b | 120 | cstring xname; |
616915dd | 121 | |
122 | llassert (cstring_isDefined (sname)); | |
28bf4b0b | 123 | xname = fileLib_withoutExtension (sname, cstring_makeLiteralTemp (".h")); |
616915dd | 124 | |
d1eb0f0f | 125 | DPRINTF (("Include? %s", sname)); |
126 | ||
28bf4b0b | 127 | /*@access cstring@*/ |
128 | llassert (cstring_isDefined (xname)); | |
7ac543fa | 129 | # if defined (OS2) |
130 | { | |
131 | /* Posixlibs use forward slashes, so we use them here, too */ | |
132 | cstring_replaceAll (xname, '\\', '/'); | |
133 | libname = strrchr (xname, '/'); | |
134 | DPRINTF (("libname: %s", libname)); | |
135 | } | |
136 | # else | |
28bf4b0b | 137 | libname = strrchr (xname, CONNECTCHAR); |
7ac543fa | 138 | # endif |
616915dd | 139 | matchname = libname; |
140 | ||
141 | if (libname == NULL) | |
142 | { | |
28bf4b0b | 143 | libname = xname; |
616915dd | 144 | } |
145 | else | |
146 | { | |
147 | libname++; | |
148 | /*@-branchstate@*/ | |
149 | } | |
150 | /*@=branchstate@*/ | |
151 | ||
152 | if (mstring_equal (libname, "varargs")) | |
153 | { | |
154 | fileloc tmp = fileloc_makePreprocPrevious (g_currentloc); | |
155 | ||
156 | voptgenerror | |
157 | (FLG_USEVARARGS, | |
1d239d69 | 158 | message ("Include file <%s.h> is inconsistent with " |
616915dd | 159 | "ANSI library (should use <stdarg.h>)", |
160 | cstring_fromChars (libname)), | |
161 | tmp); | |
162 | ||
163 | fileloc_free (tmp); | |
7ebcc5bb | 164 | cstring_free (xname); |
616915dd | 165 | return TRUE; |
166 | } | |
167 | ||
abd7f895 | 168 | if (context_getFlag (FLG_SKIPISOHEADERS) |
616915dd | 169 | && context_usingAnsiLibrary ()) |
170 | { | |
616915dd | 171 | for (i = 0; i < NUMLIBS; i++) |
172 | { | |
173 | if (mstring_equal (libname, stdlibs[i])) | |
174 | { | |
28bf4b0b | 175 | sfree (xname); |
616915dd | 176 | return TRUE; |
177 | } | |
178 | } | |
179 | } | |
180 | ||
181 | for (i = 0; i < NUMPOSIXLIBS; i++) | |
182 | { | |
7ac543fa | 183 | if (strchr (posixlibs[i], CONNECTCHAR) != NULL |
184 | # if defined (OS2) | |
185 | || strchr (posixlibs[i], ALTCONNECTCHAR) != NULL | |
186 | # endif | |
187 | ) | |
616915dd | 188 | { |
189 | char *ptr; | |
190 | ||
7ac543fa | 191 | DPRINTF (("xname: %s, posix: %s", xname, posixlibs[i])); |
28bf4b0b | 192 | if ((ptr = strstr (xname, posixlibs[i])) != NULL) |
616915dd | 193 | { |
194 | if (ptr[strlen (posixlibs[i])] == '\0') | |
195 | { | |
196 | posixlib = TRUE; | |
197 | matchname = ptr; | |
198 | break; | |
199 | } | |
200 | else | |
201 | { | |
202 | ; /* no match */ | |
203 | } | |
204 | } | |
205 | } | |
206 | else | |
207 | { | |
208 | if (mstring_equal (libname, posixlibs[i])) | |
209 | { | |
210 | posixlib = TRUE; | |
211 | matchname = libname; | |
212 | break; | |
213 | } | |
214 | /*@-branchstate@*/ | |
215 | } | |
216 | } /*@=branchstate@*/ | |
217 | ||
218 | if (posixlib) | |
219 | { | |
220 | if (context_usingPosixLibrary ()) | |
221 | { | |
222 | if (context_getFlag (FLG_SKIPPOSIXHEADERS)) | |
223 | { | |
7ebcc5bb | 224 | cstring_free (xname); |
393e573f | 225 | /*@-nullstate@*/ |
226 | return TRUE; | |
227 | /*@=nullstate@*/ | |
b73d1009 | 228 | |
393e573f | 229 | /* evans 2002-03-02: |
b73d1009 | 230 | the returned reference is possibly null, |
231 | but this should not change the null state of the parameter | |
393e573f | 232 | */ |
616915dd | 233 | } |
234 | } | |
235 | else | |
236 | { | |
237 | fileloc tmp = fileloc_makePreprocPrevious (g_currentloc); | |
238 | ||
239 | voptgenerror | |
240 | (FLG_WARNPOSIX, | |
1d239d69 | 241 | message ("Include file <%s.h> matches the name of a " |
616915dd | 242 | "POSIX library, but the POSIX library is " |
243 | "not being used. Consider using +posixlib " | |
244 | "or +posixstrictlib to select the POSIX " | |
245 | "library, or -warnposix " | |
246 | "to suppress this message.", | |
247 | cstring_fromChars (matchname)), | |
248 | tmp); | |
249 | ||
250 | fileloc_free (tmp); | |
251 | } | |
252 | } | |
253 | ||
28bf4b0b | 254 | cstring_free (xname); |
255 | /*@noaccess cstring@*/ | |
b73d1009 | 256 | /*@-nullstate@*/ /* same problem as above */ |
616915dd | 257 | return FALSE; |
393e573f | 258 | /*@=nullstate@*/ |
616915dd | 259 | } |
260 | ||
261 | static void printDot (void) | |
262 | { | |
80489f0a | 263 | displayScanContinue (cstring_makeLiteralTemp (".")); |
616915dd | 264 | } |
265 | ||
266 | void | |
267 | dumpState (cstring cfname) | |
268 | { | |
269 | FILE *f; | |
28bf4b0b | 270 | cstring fname = fileLib_addExtension (cfname, cstring_makeLiteralTemp (DUMP_SUFFIX)); |
616915dd | 271 | |
d5047b91 | 272 | f = fileTable_openWriteFile (context_fileTable (), fname); |
616915dd | 273 | |
80489f0a | 274 | displayScanOpen (message ("Dumping to %s ", fname)); |
616915dd | 275 | |
276 | if (f == NULL) | |
277 | { | |
efd360a3 | 278 | lldiagmsg (message ("Cannot open dump file for writing: %s", fname)); |
616915dd | 279 | } |
280 | else | |
281 | { | |
282 | /* | |
283 | ** sequence is convulted --- must call usymtab_prepareDump before | |
284 | ** dumping ctype table to convert type uid's | |
285 | */ | |
286 | ||
287 | printDot (); | |
288 | ||
28bf4b0b | 289 | /* |
290 | DPRINTF (("Before prepare dump:")); | |
291 | ctype_printTable (); | |
292 | DPRINTF (("Preparing dump...")); | |
293 | */ | |
294 | ||
616915dd | 295 | usymtab_prepareDump (); |
296 | ||
297 | /* | |
28bf4b0b | 298 | ** Be careful, these lines must match loadLCDFile checking. |
616915dd | 299 | */ |
300 | ||
11db3170 | 301 | fprintf (f, "%s %s\n", LIBRARY_MARKER, cstring_toCharsSafe (fname)); |
e5081f8c | 302 | fprintf (f, ";;Splint %f\n", SPLINT_LIBVERSION); |
616915dd | 303 | fprintf (f, ";;lib:%d\n", (int) context_getLibrary ()); |
304 | fprintf (f, ";;ctTable\n"); | |
28bf4b0b | 305 | |
306 | DPRINTF (("Dumping types...")); | |
616915dd | 307 | printDot (); |
28bf4b0b | 308 | ctype_dumpTable (f); |
616915dd | 309 | printDot (); |
28bf4b0b | 310 | |
311 | DPRINTF (("Dumping type sets...")); | |
616915dd | 312 | fprintf (f, ";;tistable\n"); |
313 | typeIdSet_dumpTable (f); | |
314 | printDot (); | |
28bf4b0b | 315 | |
316 | DPRINTF (("Dumping usymtab...")); | |
317 | fprintf (f, ";;symTable\n"); | |
616915dd | 318 | usymtab_dump (f); |
319 | printDot (); | |
320 | ||
28bf4b0b | 321 | DPRINTF (("Dumping modules...")); |
616915dd | 322 | fprintf (f, ";; Modules access\n"); |
323 | context_dumpModuleAccess (f); | |
324 | fprintf (f, ";;End\n"); | |
dfd82dce | 325 | check (fileTable_closeFile (context_fileTable (), f)); |
616915dd | 326 | } |
327 | ||
80489f0a | 328 | displayScanClose (); |
28bf4b0b | 329 | cstring_free (fname); |
616915dd | 330 | } |
331 | ||
332 | bool | |
333 | loadStandardState () | |
334 | { | |
28bf4b0b | 335 | cstring fpath; |
616915dd | 336 | FILE *stdlib; |
337 | bool result; | |
28bf4b0b | 338 | cstring libname = fileLib_addExtension (context_selectedLibrary (), |
339 | cstring_makeLiteralTemp (DUMP_SUFFIX)); | |
616915dd | 340 | |
341 | if (osd_findOnLarchPath (libname, &fpath) != OSD_FILEFOUND) | |
342 | { | |
343 | lldiagmsg (message ("Cannot find %sstandard library: %s", | |
344 | cstring_makeLiteralTemp | |
345 | (context_getFlag (FLG_STRICTLIB) ? "strict " | |
346 | : (context_getFlag (FLG_UNIXLIB) ? "unix " : "")), | |
28bf4b0b | 347 | libname)); |
616915dd | 348 | lldiagmsg (cstring_makeLiteral (" Check LARCH_PATH environment variable.")); |
349 | result = FALSE; | |
350 | } | |
351 | else | |
352 | { | |
d5047b91 | 353 | stdlib = fileTable_openReadFile (context_fileTable (), fpath); |
616915dd | 354 | |
355 | if (stdlib == NULL) | |
356 | { | |
357 | lldiagmsg (message ("Cannot read standard library: %s", | |
28bf4b0b | 358 | fpath)); |
616915dd | 359 | lldiagmsg (cstring_makeLiteral (" Check LARCH_PATH environment variable.")); |
360 | ||
361 | result = FALSE; | |
362 | } | |
363 | else | |
364 | { | |
365 | if (context_getFlag (FLG_WHICHLIB)) | |
366 | { | |
367 | char *t = mstring_create (MAX_NAME_LENGTH); | |
368 | char *ot = t; | |
369 | ||
28bf4b0b | 370 | if ((t = reader_readLine (stdlib, t, MAX_NAME_LENGTH)) == NULL) |
616915dd | 371 | { |
372 | llfatalerror (cstring_makeLiteral ("Standard library format invalid")); | |
373 | } | |
374 | ||
28bf4b0b | 375 | if ((t = reader_readLine (stdlib, t, MAX_NAME_LENGTH)) != NULL) |
616915dd | 376 | { |
377 | if (*t == ';' && *(t + 1) == ';') | |
378 | { | |
379 | t += 2; | |
380 | } | |
381 | } | |
382 | ||
383 | if (t == NULL) | |
384 | { | |
385 | lldiagmsg (message ("Standard library: %s <cannot read creation information>", | |
28bf4b0b | 386 | fpath)); |
616915dd | 387 | } |
388 | else | |
389 | { | |
390 | char *tt; | |
391 | ||
392 | tt = strrchr (t, '\n'); | |
393 | if (tt != NULL) | |
394 | *tt = '\0'; | |
395 | ||
28bf4b0b | 396 | lldiagmsg (message ("Standard library: %s", fpath)); |
b8dce3c7 | 397 | /* evans 2004-01-13: removed this (it is the libversion which is confusing) */ |
398 | /* lldiagmsg (message (" (created using %s)", cstring_fromChars (t))); */ | |
616915dd | 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 |