Mercurial > hg > CbC > CbC_gcc
comparison fixincludes/fixfixes.c @ 0:a06113de4d67
first commit
author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
parents | |
children | 04ced10e8804 |
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1 | |
2 /* | |
3 | |
4 Test to see if a particular fix should be applied to a header file. | |
5 | |
6 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2009 | |
7 Free Software Foundation, Inc. | |
8 | |
9 = = = = = = = = = = = = = = = = = = = = = = = = = | |
10 | |
11 NOTE TO DEVELOPERS | |
12 | |
13 The routines you write here must work closely with fixincl.c. | |
14 | |
15 Here are the rules: | |
16 | |
17 1. Every test procedure name must be suffixed with "_fix". | |
18 These routines will be referenced from inclhack.def, sans the suffix. | |
19 | |
20 2. Use the "FIX_PROC_HEAD()" macro _with_ the "_fix" suffix | |
21 (I cannot use the ## magic from ANSI C) for defining your entry point. | |
22 | |
23 3. Put your test name into the FIXUP_TABLE. | |
24 | |
25 4. Do not read anything from stdin. It is closed. | |
26 | |
27 5. Write to stderr only in the event of a reportable error | |
28 In such an event, call "exit (EXIT_FAILURE)". | |
29 | |
30 6. You have access to the fixDescList entry for the fix in question. | |
31 This may be useful, for example, if there are interesting strings | |
32 or pre-compiled regular expressions stored there. | |
33 | |
34 = = = = = = = = = = = = = = = = = = = = = = = = = | |
35 | |
36 This file is part of GCC. | |
37 | |
38 GCC is free software; you can redistribute it and/or modify | |
39 it under the terms of the GNU General Public License as published by | |
40 the Free Software Foundation; either version 3, or (at your option) | |
41 any later version. | |
42 | |
43 GCC is distributed in the hope that it will be useful, | |
44 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
45 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
46 GNU General Public License for more details. | |
47 | |
48 You should have received a copy of the GNU General Public License | |
49 along with GCC; see the file COPYING3. If not see | |
50 <http://www.gnu.org/licenses/>. */ | |
51 | |
52 #include "fixlib.h" | |
53 #define GTYPE_SE_CT 1 | |
54 | |
55 #ifdef SEPARATE_FIX_PROC | |
56 #include "fixincl.x" | |
57 #endif | |
58 | |
59 tSCC zNeedsArg[] = "fixincl error: `%s' needs %s argument (c_fix_arg[%d])\n"; | |
60 | |
61 typedef void t_fix_proc (const char *, const char *, tFixDesc *) ; | |
62 typedef struct { | |
63 const char* fix_name; | |
64 t_fix_proc* fix_proc; | |
65 } fix_entry_t; | |
66 | |
67 #define FIXUP_TABLE \ | |
68 _FT_( "char_macro_def", char_macro_def_fix ) \ | |
69 _FT_( "char_macro_use", char_macro_use_fix ) \ | |
70 _FT_( "format", format_fix ) \ | |
71 _FT_( "machine_name", machine_name_fix ) \ | |
72 _FT_( "wrap", wrap_fix ) \ | |
73 _FT_( "gnu_type", gnu_type_fix ) | |
74 | |
75 | |
76 #define FIX_PROC_HEAD( fix ) \ | |
77 static void fix (const char* filname ATTRIBUTE_UNUSED , \ | |
78 const char* text ATTRIBUTE_UNUSED , \ | |
79 tFixDesc* p_fixd ATTRIBUTE_UNUSED ) | |
80 | |
81 #ifdef NEED_PRINT_QUOTE | |
82 /* | |
83 * Skip over a quoted string. Single quote strings may | |
84 * contain multiple characters if the first character is | |
85 * a backslash. Especially a backslash followed by octal digits. | |
86 * We are not doing a correctness syntax check here. | |
87 */ | |
88 static char* | |
89 print_quote(char q, char* text ) | |
90 { | |
91 fputc( q, stdout ); | |
92 | |
93 for (;;) | |
94 { | |
95 char ch = *(text++); | |
96 fputc( ch, stdout ); | |
97 | |
98 switch (ch) | |
99 { | |
100 case '\\': | |
101 if (*text == NUL) | |
102 goto quote_done; | |
103 | |
104 fputc( *(text++), stdout ); | |
105 break; | |
106 | |
107 case '"': | |
108 case '\'': | |
109 if (ch != q) | |
110 break; | |
111 /*FALLTHROUGH*/ | |
112 | |
113 case '\n': | |
114 case NUL: | |
115 goto quote_done; | |
116 } | |
117 } quote_done:; | |
118 | |
119 return text; | |
120 } | |
121 #endif /* NEED_PRINT_QUOTE */ | |
122 | |
123 | |
124 /* | |
125 * Emit the GNU standard type wrapped up in such a way that | |
126 * this thing can be encountered countless times during a compile | |
127 * and not cause even a warning. | |
128 */ | |
129 static const char* | |
130 emit_gnu_type (const char* text, regmatch_t* rm ) | |
131 { | |
132 char z_TYPE[ 64 ]; | |
133 char z_type[ 64 ]; | |
134 | |
135 fwrite (text, rm[0].rm_so, 1, stdout); | |
136 | |
137 { | |
138 const char* ps = text + rm[1].rm_so; | |
139 const char* pe = text + rm[1].rm_eo; | |
140 char* pd = z_type; | |
141 char* pD = z_TYPE; | |
142 | |
143 while (ps < pe) | |
144 *(pD++) = TOUPPER( *(pd++) = *(ps++) ); | |
145 | |
146 *pD = *pd = NUL; | |
147 } | |
148 | |
149 /* | |
150 * Now print out the reformed typedef, | |
151 * with a C++ guard for WCHAR | |
152 */ | |
153 { | |
154 tSCC z_fmt[] = "\ | |
155 #if !defined(_GCC_%s_T)%s\n\ | |
156 #define _GCC_%s_T\n\ | |
157 typedef __%s_TYPE__ %s_t;\n\ | |
158 #endif\n"; | |
159 | |
160 const char *const pz_guard = (strcmp (z_type, "wchar") == 0) | |
161 ? " && ! defined(__cplusplus)" : ""; | |
162 | |
163 printf (z_fmt, z_TYPE, pz_guard, z_TYPE, z_TYPE, z_type); | |
164 } | |
165 | |
166 return text += rm[0].rm_eo; | |
167 } | |
168 | |
169 | |
170 /* | |
171 * Copy the `format' string to std out, replacing `%n' expressions | |
172 * with the matched text from a regular expression evaluation. | |
173 * Doubled '%' characters will be replaced with a single copy. | |
174 * '%' characters in other contexts and all other characters are | |
175 * copied out verbatim. | |
176 */ | |
177 static void | |
178 format_write (tCC* format, tCC* text, regmatch_t av[] ) | |
179 { | |
180 int c; | |
181 | |
182 while ((c = (unsigned)*(format++)) != NUL) { | |
183 | |
184 if (c != '%') | |
185 { | |
186 putchar(c); | |
187 continue; | |
188 } | |
189 | |
190 c = (unsigned)*(format++); | |
191 | |
192 /* | |
193 * IF the character following a '%' is not a digit, | |
194 * THEN we will always emit a '%' and we may or may | |
195 * not emit the following character. We will end on | |
196 * a NUL and we will emit only one of a pair of '%'. | |
197 */ | |
198 if (! ISDIGIT ( c )) | |
199 { | |
200 putchar( '%' ); | |
201 switch (c) { | |
202 case NUL: | |
203 return; | |
204 case '%': | |
205 break; | |
206 default: | |
207 putchar(c); | |
208 } | |
209 } | |
210 | |
211 /* | |
212 * Emit the matched subexpression numbered 'c'. | |
213 * IF, of course, there was such a match... | |
214 */ | |
215 else { | |
216 regmatch_t* pRM = av + (c - (unsigned)'0'); | |
217 size_t len; | |
218 | |
219 if (pRM->rm_so < 0) | |
220 continue; | |
221 | |
222 len = pRM->rm_eo - pRM->rm_so; | |
223 if (len > 0) | |
224 fwrite(text + pRM->rm_so, len, 1, stdout); | |
225 } | |
226 } | |
227 } | |
228 | |
229 | |
230 /* | |
231 * Search for multiple copies of a regular expression. Each block | |
232 * of matched text is replaced with the format string, as described | |
233 * above in `format_write'. | |
234 */ | |
235 FIX_PROC_HEAD( format_fix ) | |
236 { | |
237 tCC* pz_pat = p_fixd->patch_args[2]; | |
238 tCC* pz_fmt = p_fixd->patch_args[1]; | |
239 regex_t re; | |
240 regmatch_t rm[10]; | |
241 IGNORE_ARG(filname); | |
242 | |
243 /* | |
244 * We must have a format | |
245 */ | |
246 if (pz_fmt == (tCC*)NULL) | |
247 { | |
248 fprintf( stderr, zNeedsArg, p_fixd->fix_name, "replacement format", 0 ); | |
249 exit (EXIT_BROKEN); | |
250 } | |
251 | |
252 /* | |
253 * IF we don't have a search text, then go find the first | |
254 * regular expression among the tests. | |
255 */ | |
256 if (pz_pat == (tCC*)NULL) | |
257 { | |
258 tTestDesc* pTD = p_fixd->p_test_desc; | |
259 int ct = p_fixd->test_ct; | |
260 for (;;) | |
261 { | |
262 if (ct-- <= 0) | |
263 { | |
264 fprintf( stderr, zNeedsArg, p_fixd->fix_name, "search text", 1 ); | |
265 exit (EXIT_BROKEN); | |
266 } | |
267 | |
268 if (pTD->type == TT_EGREP) | |
269 { | |
270 pz_pat = pTD->pz_test_text; | |
271 break; | |
272 } | |
273 | |
274 pTD++; | |
275 } | |
276 } | |
277 | |
278 /* | |
279 * Replace every copy of the text we find | |
280 */ | |
281 compile_re (pz_pat, &re, 1, "format search-text", "format_fix" ); | |
282 while (xregexec (&re, text, 10, rm, 0) == 0) | |
283 { | |
284 fwrite( text, rm[0].rm_so, 1, stdout ); | |
285 format_write( pz_fmt, text, rm ); | |
286 text += rm[0].rm_eo; | |
287 } | |
288 | |
289 /* | |
290 * Dump out the rest of the file | |
291 */ | |
292 fputs (text, stdout); | |
293 } | |
294 | |
295 | |
296 /* Scan the input file for all occurrences of text like this: | |
297 | |
298 #define TIOCCONS _IO(T, 12) | |
299 | |
300 and change them to read like this: | |
301 | |
302 #define TIOCCONS _IO('T', 12) | |
303 | |
304 which is the required syntax per the C standard. (The definition of | |
305 _IO also has to be tweaked - see below.) 'IO' is actually whatever you | |
306 provide as the `c_fix_arg' argument. */ | |
307 | |
308 FIX_PROC_HEAD( char_macro_use_fix ) | |
309 { | |
310 /* This regexp looks for a traditional-syntax #define (# in column 1) | |
311 of an object-like macro. */ | |
312 static const char pat[] = | |
313 "^#[ \t]*define[ \t]+[_A-Za-z][_A-Za-z0-9]*[ \t]+"; | |
314 static regex_t re; | |
315 | |
316 const char* str = p_fixd->patch_args[1]; | |
317 regmatch_t rm[1]; | |
318 const char *p, *limit; | |
319 size_t len; | |
320 IGNORE_ARG(filname); | |
321 | |
322 if (str == NULL) | |
323 { | |
324 fprintf (stderr, zNeedsArg, p_fixd->fix_name, "ioctl type", 0); | |
325 exit (EXIT_BROKEN); | |
326 } | |
327 | |
328 len = strlen (str); | |
329 compile_re (pat, &re, 1, "macro pattern", "char_macro_use_fix"); | |
330 | |
331 for (p = text; | |
332 xregexec (&re, p, 1, rm, 0) == 0; | |
333 p = limit + 1) | |
334 { | |
335 /* p + rm[0].rm_eo is the first character of the macro replacement. | |
336 Find the end of the macro replacement, and the STR we were | |
337 sent to look for within the replacement. */ | |
338 p += rm[0].rm_eo; | |
339 limit = p - 1; | |
340 do | |
341 { | |
342 limit = strchr (limit + 1, '\n'); | |
343 if (!limit) | |
344 goto done; | |
345 } | |
346 while (limit[-1] == '\\'); | |
347 | |
348 do | |
349 { | |
350 if (*p == str[0] && !strncmp (p+1, str+1, len-1)) | |
351 goto found; | |
352 } | |
353 while (++p < limit - len); | |
354 /* Hit end of line. */ | |
355 continue; | |
356 | |
357 found: | |
358 /* Found STR on this line. If the macro needs fixing, | |
359 the next few chars will be whitespace or uppercase, | |
360 then an open paren, then a single letter. */ | |
361 while ((ISSPACE (*p) || ISUPPER (*p)) && p < limit) p++; | |
362 if (*p++ != '(') | |
363 continue; | |
364 if (!ISALPHA (*p)) | |
365 continue; | |
366 if (ISIDNUM (p[1])) | |
367 continue; | |
368 | |
369 /* Splat all preceding text into the output buffer, | |
370 quote the character at p, then proceed. */ | |
371 fwrite (text, 1, p - text, stdout); | |
372 putchar ('\''); | |
373 putchar (*p); | |
374 putchar ('\''); | |
375 text = p + 1; | |
376 } | |
377 done: | |
378 fputs (text, stdout); | |
379 } | |
380 | |
381 | |
382 /* Scan the input file for all occurrences of text like this: | |
383 | |
384 #define xxxIOxx(x, y) (....'x'<<16....) | |
385 | |
386 and change them to read like this: | |
387 | |
388 #define xxxIOxx(x, y) (....x<<16....) | |
389 | |
390 which is the required syntax per the C standard. (The uses of _IO | |
391 also has to be tweaked - see above.) 'IO' is actually whatever | |
392 you provide as the `c_fix_arg' argument. */ | |
393 FIX_PROC_HEAD( char_macro_def_fix ) | |
394 { | |
395 /* This regexp looks for any traditional-syntax #define (# in column 1). */ | |
396 static const char pat[] = | |
397 "^#[ \t]*define[ \t]+"; | |
398 static regex_t re; | |
399 | |
400 const char* str = p_fixd->patch_args[1]; | |
401 regmatch_t rm[1]; | |
402 const char *p, *limit; | |
403 char arg; | |
404 size_t len; | |
405 IGNORE_ARG(filname); | |
406 | |
407 if (str == NULL) | |
408 { | |
409 fprintf (stderr, zNeedsArg, p_fixd->fix_name, "ioctl type", 0); | |
410 exit (EXIT_BROKEN); | |
411 } | |
412 | |
413 len = strlen (str); | |
414 compile_re (pat, &re, 1, "macro pattern", "fix_char_macro_defines"); | |
415 | |
416 for (p = text; | |
417 xregexec (&re, p, 1, rm, 0) == 0; | |
418 p = limit + 1) | |
419 { | |
420 /* p + rm[0].rm_eo is the first character of the macro name. | |
421 Find the end of the macro replacement, and the STR we were | |
422 sent to look for within the name. */ | |
423 p += rm[0].rm_eo; | |
424 limit = p - 1; | |
425 do | |
426 { | |
427 limit = strchr (limit + 1, '\n'); | |
428 if (!limit) | |
429 goto done; | |
430 } | |
431 while (limit[-1] == '\\'); | |
432 | |
433 do | |
434 { | |
435 if (*p == str[0] && !strncmp (p+1, str+1, len-1)) | |
436 goto found; | |
437 p++; | |
438 } | |
439 while (ISIDNUM (*p)); | |
440 /* Hit end of macro name without finding the string. */ | |
441 continue; | |
442 | |
443 found: | |
444 /* Found STR in this macro name. If the macro needs fixing, | |
445 there may be a few uppercase letters, then there will be an | |
446 open paren with _no_ intervening whitespace, and then a | |
447 single letter. */ | |
448 while (ISUPPER (*p) && p < limit) p++; | |
449 if (*p++ != '(') | |
450 continue; | |
451 if (!ISALPHA (*p)) | |
452 continue; | |
453 if (ISIDNUM (p[1])) | |
454 continue; | |
455 | |
456 /* The character at P is the one to look for in the following | |
457 text. */ | |
458 arg = *p; | |
459 p += 2; | |
460 | |
461 while (p < limit) | |
462 { | |
463 if (p[-1] == '\'' && p[0] == arg && p[1] == '\'') | |
464 { | |
465 /* Remove the quotes from this use of ARG. */ | |
466 p--; | |
467 fwrite (text, 1, p - text, stdout); | |
468 putchar (arg); | |
469 p += 3; | |
470 text = p; | |
471 } | |
472 else | |
473 p++; | |
474 } | |
475 } | |
476 done: | |
477 fputs (text, stdout); | |
478 } | |
479 | |
480 /* Fix for machine name #ifdefs that are not in the namespace reserved | |
481 by the C standard. They won't be defined if compiling with -ansi, | |
482 and the headers will break. We go to some trouble to only change | |
483 #ifdefs where the macro is defined by GCC in non-ansi mode; this | |
484 minimizes the number of headers touched. */ | |
485 | |
486 #define SCRATCHSZ 64 /* hopefully long enough */ | |
487 | |
488 FIX_PROC_HEAD( machine_name_fix ) | |
489 { | |
490 regmatch_t match[2]; | |
491 const char *line, *base, *limit, *p, *q; | |
492 regex_t *label_re, *name_re; | |
493 char scratch[SCRATCHSZ]; | |
494 size_t len; | |
495 IGNORE_ARG(filname); | |
496 IGNORE_ARG(p_fixd); | |
497 | |
498 if (!mn_get_regexps (&label_re, &name_re, "machine_name_fix")) | |
499 { | |
500 fputs( "The target machine has no needed machine name fixes\n", stderr ); | |
501 goto done; | |
502 } | |
503 | |
504 scratch[0] = '_'; | |
505 scratch[1] = '_'; | |
506 | |
507 for (base = text; | |
508 xregexec (label_re, base, 2, match, 0) == 0; | |
509 base = limit) | |
510 { | |
511 base += match[0].rm_eo; | |
512 /* We're looking at an #if or #ifdef. Scan forward for the | |
513 next non-escaped newline. */ | |
514 line = limit = base; | |
515 do | |
516 { | |
517 limit++; | |
518 limit = strchr (limit, '\n'); | |
519 if (!limit) | |
520 goto done; | |
521 } | |
522 while (limit[-1] == '\\'); | |
523 | |
524 /* If the 'name_pat' matches in between base and limit, we have | |
525 a bogon. It is not worth the hassle of excluding comments | |
526 because comments on #if/#ifdef lines are rare, and strings on | |
527 such lines are illegal. | |
528 | |
529 REG_NOTBOL means 'base' is not at the beginning of a line, which | |
530 shouldn't matter since the name_re has no ^ anchor, but let's | |
531 be accurate anyway. */ | |
532 | |
533 for (;;) | |
534 { | |
535 again: | |
536 if (base == limit) | |
537 break; | |
538 | |
539 if (xregexec (name_re, base, 1, match, REG_NOTBOL)) | |
540 goto done; /* No remaining match in this file */ | |
541 | |
542 /* Match; is it on the line? */ | |
543 if (match[0].rm_eo > limit - base) | |
544 break; | |
545 | |
546 p = base + match[0].rm_so; | |
547 base += match[0].rm_eo; | |
548 | |
549 /* One more test: if on the same line we have the same string | |
550 with the appropriate underscores, then leave it alone. | |
551 We want exactly two leading and trailing underscores. */ | |
552 if (*p == '_') | |
553 { | |
554 len = base - p - ((*base == '_') ? 2 : 1); | |
555 q = p + 1; | |
556 } | |
557 else | |
558 { | |
559 len = base - p - ((*base == '_') ? 1 : 0); | |
560 q = p; | |
561 } | |
562 if (len + 4 > SCRATCHSZ) | |
563 abort (); | |
564 memcpy (&scratch[2], q, len); | |
565 len += 2; | |
566 scratch[len++] = '_'; | |
567 scratch[len++] = '_'; | |
568 | |
569 for (q = line; q <= limit - len; q++) | |
570 if (*q == '_' && !strncmp (q, scratch, len)) | |
571 goto again; | |
572 | |
573 fwrite (text, 1, p - text, stdout); | |
574 fwrite (scratch, 1, len, stdout); | |
575 | |
576 text = base; | |
577 } | |
578 } | |
579 done: | |
580 fputs (text, stdout); | |
581 } | |
582 | |
583 | |
584 FIX_PROC_HEAD( wrap_fix ) | |
585 { | |
586 tSCC z_no_wrap_pat[] = "^#if.*__need_"; | |
587 static regex_t no_wrapping_re; /* assume zeroed data */ | |
588 | |
589 tCC* pz_name = NULL; | |
590 | |
591 if (no_wrapping_re.allocated == 0) | |
592 compile_re( z_no_wrap_pat, &no_wrapping_re, 0, "no-wrap pattern", | |
593 "wrap-fix" ); | |
594 | |
595 /* | |
596 * IF we do *not* match the no-wrap re, then we have a double negative. | |
597 * A double negative means YES. | |
598 */ | |
599 if (xregexec( &no_wrapping_re, text, 0, NULL, 0 ) != 0) | |
600 { | |
601 /* | |
602 * A single file can get wrapped more than once by different fixes. | |
603 * A single fix can wrap multiple files. Therefore, guard with | |
604 * *both* the fix name and the file name. | |
605 */ | |
606 size_t ln = strlen( filname ) + strlen( p_fixd->fix_name ) + 14; | |
607 char* pz = XNEWVEC (char, ln); | |
608 pz_name = pz; | |
609 sprintf( pz, "FIXINC_WRAP_%s-%s", filname, p_fixd->fix_name ); | |
610 | |
611 for (pz += 12; 1; pz++) { | |
612 char ch = *pz; | |
613 | |
614 if (ch == NUL) | |
615 break; | |
616 | |
617 if (! ISALNUM( ch )) { | |
618 *pz = '_'; | |
619 } | |
620 else { | |
621 *pz = TOUPPER( ch ); | |
622 } | |
623 } | |
624 | |
625 printf( "#ifndef %s\n", pz_name ); | |
626 printf( "#define %s 1\n\n", pz_name ); | |
627 } | |
628 | |
629 if (p_fixd->patch_args[1] == (tCC*)NULL) | |
630 fputs( text, stdout ); | |
631 | |
632 else { | |
633 fputs( p_fixd->patch_args[1], stdout ); | |
634 fputs( text, stdout ); | |
635 if (p_fixd->patch_args[2] != (tCC*)NULL) | |
636 fputs( p_fixd->patch_args[2], stdout ); | |
637 } | |
638 | |
639 if (pz_name != NULL) { | |
640 printf( "\n#endif /* %s */\n", pz_name ); | |
641 free( (void*)pz_name ); | |
642 } | |
643 } | |
644 | |
645 | |
646 /* | |
647 * Search for multiple copies of a regular expression. Each block | |
648 * of matched text is replaced with the format string, as described | |
649 * above in `format_write'. | |
650 */ | |
651 FIX_PROC_HEAD( gnu_type_fix ) | |
652 { | |
653 const char* pz_pat; | |
654 regex_t re; | |
655 regmatch_t rm[GTYPE_SE_CT+1]; | |
656 IGNORE_ARG(filname); | |
657 | |
658 { | |
659 tTestDesc* pTD = p_fixd->p_test_desc; | |
660 int ct = p_fixd->test_ct; | |
661 for (;;) | |
662 { | |
663 if (ct-- <= 0) | |
664 { | |
665 fprintf (stderr, zNeedsArg, p_fixd->fix_name, "search text", 1); | |
666 exit (EXIT_BROKEN); | |
667 } | |
668 | |
669 if (pTD->type == TT_EGREP) | |
670 { | |
671 pz_pat = pTD->pz_test_text; | |
672 break; | |
673 } | |
674 | |
675 pTD++; | |
676 } | |
677 } | |
678 | |
679 compile_re (pz_pat, &re, 1, "gnu type typedef", "gnu_type_fix"); | |
680 | |
681 while (xregexec (&re, text, GTYPE_SE_CT+1, rm, 0) == 0) | |
682 { | |
683 text = emit_gnu_type (text, rm); | |
684 } | |
685 | |
686 /* | |
687 * Dump out the rest of the file | |
688 */ | |
689 fputs (text, stdout); | |
690 } | |
691 | |
692 | |
693 /* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = | |
694 | |
695 test for fix selector | |
696 | |
697 THIS IS THE ONLY EXPORTED ROUTINE | |
698 | |
699 */ | |
700 void | |
701 apply_fix( tFixDesc* p_fixd, tCC* filname ) | |
702 { | |
703 #define _FT_(n,p) { n, p }, | |
704 static fix_entry_t fix_table[] = { FIXUP_TABLE { NULL, NULL }}; | |
705 #undef _FT_ | |
706 #define FIX_TABLE_CT (ARRAY_SIZE (fix_table)-1) | |
707 | |
708 tCC* fixname = p_fixd->patch_args[0]; | |
709 char* buf; | |
710 int ct = FIX_TABLE_CT; | |
711 fix_entry_t* pfe = fix_table; | |
712 | |
713 for (;;) | |
714 { | |
715 if (strcmp (pfe->fix_name, fixname) == 0) | |
716 break; | |
717 if (--ct <= 0) | |
718 { | |
719 fprintf (stderr, "fixincl error: the `%s' fix is unknown\n", | |
720 fixname ); | |
721 exit (EXIT_BROKEN); | |
722 } | |
723 pfe++; | |
724 } | |
725 | |
726 buf = load_file_data (stdin); | |
727 (*pfe->fix_proc)( filname, buf, p_fixd ); | |
728 } | |
729 | |
730 #ifdef SEPARATE_FIX_PROC | |
731 tSCC z_usage[] = | |
732 "USAGE: applyfix <fix-name> <file-to-fix> <file-source> <file-destination>\n"; | |
733 tSCC z_reopen[] = | |
734 "FS error %d (%s) reopening %s as std%s\n"; | |
735 | |
736 int | |
737 main( int argc, char** argv ) | |
738 { | |
739 tFixDesc* pFix; | |
740 char* pz_tmptmp; | |
741 char* pz_tmp_base; | |
742 char* pz_tmp_dot; | |
743 | |
744 if (argc != 5) | |
745 { | |
746 usage_failure: | |
747 fputs (z_usage, stderr); | |
748 return EXIT_FAILURE; | |
749 } | |
750 | |
751 initialize_opts (); | |
752 | |
753 { | |
754 char* pz = argv[1]; | |
755 long idx; | |
756 | |
757 if (! ISDIGIT ( *pz )) | |
758 goto usage_failure; | |
759 | |
760 idx = strtol (pz, &pz, 10); | |
761 if ((*pz != NUL) || ((unsigned)idx >= FIX_COUNT)) | |
762 goto usage_failure; | |
763 pFix = fixDescList + idx; | |
764 } | |
765 | |
766 if (freopen (argv[3], "r", stdin) != stdin) | |
767 { | |
768 fprintf (stderr, z_reopen, errno, strerror( errno ), argv[3], "in"); | |
769 return EXIT_FAILURE; | |
770 } | |
771 | |
772 pz_tmptmp = XNEWVEC (char, strlen (argv[4]) + 5); | |
773 strcpy( pz_tmptmp, argv[4] ); | |
774 | |
775 /* Don't lose because "12345678" and "12345678X" map to the same | |
776 file under DOS restricted 8+3 file namespace. Note that DOS | |
777 doesn't allow more than one dot in the trunk of a file name. */ | |
778 pz_tmp_base = basename( pz_tmptmp ); | |
779 pz_tmp_dot = strchr( pz_tmp_base, '.' ); | |
780 #ifdef _PC_NAME_MAX | |
781 if (pathconf( pz_tmptmp, _PC_NAME_MAX ) <= 12 /* is this DOS or Windows9X? */ | |
782 && pz_tmp_dot != (char*)NULL) | |
783 strcpy (pz_tmp_dot+1, "X"); /* nuke the original extension */ | |
784 else | |
785 #endif /* _PC_NAME_MAX */ | |
786 strcat (pz_tmptmp, ".X"); | |
787 if (freopen (pz_tmptmp, "w", stdout) != stdout) | |
788 { | |
789 fprintf (stderr, z_reopen, errno, strerror( errno ), pz_tmptmp, "out"); | |
790 return EXIT_FAILURE; | |
791 } | |
792 | |
793 apply_fix (pFix, argv[1]); | |
794 fclose (stdout); | |
795 fclose (stdin); | |
796 unlink (argv[4]); | |
797 if (rename (pz_tmptmp, argv[4]) != 0) | |
798 { | |
799 fprintf (stderr, "error %d (%s) renaming %s to %s\n", errno, | |
800 strerror( errno ), pz_tmptmp, argv[4]); | |
801 return EXIT_FAILURE; | |
802 } | |
803 | |
804 return EXIT_SUCCESS; | |
805 } | |
806 #endif |