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0083c904 | 1 | |
1f414ac4 BK |
2 | /* Install modified versions of certain ANSI-incompatible system header |
3 | files which are fixed to work correctly with ANSI C and placed in a | |
4 | directory that GNU C will search. | |
5 | ||
3852e8af | 6 | Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. |
1f414ac4 BK |
7 | |
8 | This file is part of GNU CC. | |
9 | ||
10 | GNU CC is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2, or (at your option) | |
13 | any later version. | |
14 | ||
15 | GNU CC is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with GNU CC; see the file COPYING. If not, write to | |
22 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
24 | ||
5abc1f74 BK |
25 | #include "fixlib.h" |
26 | ||
56f02b88 | 27 | #if HAVE_MMAP_FILE |
99d525c9 PDM |
28 | #include <sys/mman.h> |
29 | #define BAD_ADDR ((void*)-1) | |
30 | #endif | |
1f414ac4 | 31 | |
0083c904 | 32 | #include <signal.h> |
0083c904 | 33 | |
0083c904 BK |
34 | #include "server.h" |
35 | ||
5abc1f74 BK |
36 | /* The contents of this string are not very important. It is mostly |
37 | just used as part of the "I am alive and working" test. */ | |
0083c904 | 38 | |
5abc1f74 | 39 | static const char program_id[] = "fixincl version 1.1"; |
0083c904 | 40 | |
1f414ac4 BK |
41 | /* Working environment strings. Essentially, invocation 'options'. */ |
42 | char *pz_dest_dir = NULL; | |
43 | char *pz_src_dir = NULL; | |
44 | char *pz_machine = NULL; | |
7d9ccd90 | 45 | int find_base_len = 0; |
1f414ac4 | 46 | |
b35926b9 BK |
47 | typedef enum { |
48 | VERB_SILENT = 0, | |
49 | VERB_FIXES, | |
50 | VERB_APPLIES, | |
51 | VERB_PROGRESS, | |
52 | VERB_TESTS, | |
53 | VERB_EVERYTHING | |
54 | } te_verbose; | |
55 | ||
56 | te_verbose verbose_level = VERB_PROGRESS; | |
d7eb5a45 | 57 | int have_tty = 0; |
b35926b9 BK |
58 | |
59 | #define VLEVEL(l) (verbose_level >= l) | |
60 | #define NOT_SILENT VLEVEL(VERB_FIXES) | |
61 | ||
1f414ac4 BK |
62 | pid_t process_chain_head = (pid_t) -1; |
63 | ||
5abc1f74 BK |
64 | char* pz_curr_file; /* name of the current file under test/fix */ |
65 | char* pz_curr_data; /* original contents of that file */ | |
66 | t_bool curr_data_mapped; | |
67 | int data_map_fd; | |
68 | size_t data_map_size; | |
69 | size_t ttl_data_size = 0; | |
70 | #ifdef DO_STATS | |
71 | int process_ct = 0; | |
72 | int apply_ct = 0; | |
73 | int fixed_ct = 0; | |
74 | int altered_ct = 0; | |
75 | #endif /* DO_STATS */ | |
76 | ||
56f02b88 | 77 | #ifdef HAVE_MMAP_FILE |
5abc1f74 BK |
78 | #define UNLOAD_DATA() do { if (curr_data_mapped) { \ |
79 | munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \ | |
80 | else free ((void*)pz_curr_data); } while(0) | |
81 | #else | |
82 | #define UNLOAD_DATA() free ((void*)pz_curr_data) | |
83 | #endif | |
84 | ||
1f414ac4 | 85 | const char incl_quote_pat[] = "^[ \t]*#[ \t]*include[ \t]*\"[^/]"; |
5abc1f74 | 86 | tSCC z_fork_err[] = "Error %d (%s) starting filter process for %s\n"; |
1f414ac4 BK |
87 | regex_t incl_quote_re; |
88 | ||
5abc1f74 | 89 | void do_version (); |
94db2f71 BK |
90 | char *load_file _P_((const char *)); |
91 | void process _P_((char *, const char *)); | |
d1c6a037 | 92 | void run_compiles (); |
35dfe415 | 93 | void initialize _P_((int argc,char** argv)); |
5abc1f74 BK |
94 | void process (); |
95 | ||
96 | /* External Source Code */ | |
0083c904 BK |
97 | |
98 | #include "fixincl.x" | |
99 | ||
1f414ac4 BK |
100 | /* * * * * * * * * * * * * * * * * * * |
101 | * | |
102 | * MAIN ROUTINE | |
103 | */ | |
0083c904 BK |
104 | int |
105 | main (argc, argv) | |
106 | int argc; | |
107 | char **argv; | |
108 | { | |
5abc1f74 | 109 | char *file_name_buf; |
0083c904 | 110 | |
35dfe415 | 111 | initialize ( argc, argv ); |
d1c6a037 | 112 | |
d7eb5a45 ZW |
113 | have_tty = isatty (fileno (stderr)); |
114 | ||
5abc1f74 BK |
115 | /* Before anything else, ensure we can allocate our file name buffer. */ |
116 | file_name_buf = load_file_data (stdin); | |
117 | ||
118 | /* Because of the way server shells work, you have to keep stdin, out | |
119 | and err open so that the proper input file does not get closed | |
120 | by accident */ | |
121 | ||
122 | freopen ("/dev/null", "r", stdin); | |
123 | ||
124 | if (file_name_buf == (char *) NULL) | |
125 | { | |
126 | fputs ("No file names listed for fixing\n", stderr); | |
127 | exit (EXIT_FAILURE); | |
128 | } | |
129 | ||
d1c6a037 BK |
130 | for (;;) |
131 | { | |
5abc1f74 | 132 | char* pz_end; |
d1c6a037 | 133 | |
5abc1f74 | 134 | /* skip to start of name, past any "./" prefixes */ |
d1c6a037 | 135 | |
5abc1f74 BK |
136 | while (ISSPACE (*file_name_buf)) file_name_buf++; |
137 | while ((file_name_buf[0] == '.') && (file_name_buf[1] == '/')) | |
138 | file_name_buf += 2; | |
d1c6a037 | 139 | |
5abc1f74 BK |
140 | /* Check for end of list */ |
141 | ||
142 | if (*file_name_buf == NUL) | |
143 | break; | |
144 | ||
145 | /* Set global file name pointer and find end of name */ | |
146 | ||
147 | pz_curr_file = file_name_buf; | |
148 | pz_end = strchr( pz_curr_file, '\n' ); | |
149 | if (pz_end == (char*)NULL) | |
150 | pz_end = file_name_buf = pz_curr_file + strlen (pz_curr_file); | |
151 | else | |
152 | file_name_buf = pz_end + 1; | |
153 | ||
154 | while ((pz_end > pz_curr_file) && ISSPACE( pz_end[-1])) pz_end--; | |
155 | ||
156 | /* IF no name is found (blank line) or comment marker, skip line */ | |
157 | ||
158 | if ((pz_curr_file == pz_end) || (*pz_curr_file == '#')) | |
159 | continue; | |
160 | *pz_end = NUL; | |
d1c6a037 | 161 | |
5abc1f74 | 162 | process (); |
5abc1f74 | 163 | } /* for (;;) */ |
d1c6a037 | 164 | |
5abc1f74 | 165 | #ifdef DO_STATS |
b35926b9 | 166 | if (VLEVEL( VERB_PROGRESS )) { |
5abc1f74 BK |
167 | tSCC zFmt[] = |
168 | "\ | |
169 | Processed %5d files containing %d bytes \n\ | |
170 | Applying %5d fixes to %d files\n\ | |
171 | Altering %5d of them\n"; | |
172 | ||
173 | fprintf (stderr, zFmt, process_ct, ttl_data_size, apply_ct, | |
174 | fixed_ct, altered_ct); | |
175 | } | |
176 | #endif /* DO_STATS */ | |
d1c6a037 BK |
177 | return EXIT_SUCCESS; |
178 | } | |
179 | ||
180 | ||
5abc1f74 BK |
181 | void |
182 | do_version () | |
183 | { | |
184 | static const char zFmt[] = "echo '%s'"; | |
185 | char zBuf[ 1024 ]; | |
186 | ||
187 | /* The 'version' option is really used to test that: | |
188 | 1. The program loads correctly (no missing libraries) | |
35dfe415 BK |
189 | 2. that we can compile all the regular expressions. |
190 | 3. we can correctly run our server shell process | |
5abc1f74 BK |
191 | */ |
192 | run_compiles (); | |
193 | sprintf (zBuf, zFmt, program_id); | |
6b151aa7 | 194 | puts (zBuf + 5); |
5abc1f74 BK |
195 | exit (strcmp (run_shell (zBuf), program_id)); |
196 | } | |
197 | ||
d1c6a037 BK |
198 | /* * * * * * * * * * * * */ |
199 | ||
200 | void | |
35dfe415 BK |
201 | initialize ( argc, argv ) |
202 | int argc; | |
203 | char** argv; | |
d1c6a037 BK |
204 | { |
205 | static const char var_not_found[] = | |
5abc1f74 BK |
206 | "fixincl ERROR: %s environment variable not defined\n\ |
207 | \tTARGET_MACHINE, DESTDIR, SRCDIR and FIND_BASE are required\n"; | |
d1c6a037 | 208 | |
35dfe415 BK |
209 | switch (argc) |
210 | { | |
211 | case 1: | |
212 | break; | |
213 | ||
214 | case 2: | |
215 | if (strcmp (argv[1], "-v") == 0) | |
216 | do_version (); | |
217 | if (freopen (argv[1], "r", stdin) == (FILE*)NULL) | |
218 | { | |
219 | fprintf (stderr, "Error %d (%s) reopening %s as stdin\n", | |
220 | errno, xstrerror (errno), argv[1] ); | |
221 | exit (EXIT_FAILURE); | |
222 | } | |
223 | break; | |
224 | ||
225 | default: | |
226 | fputs ("fixincl ERROR: too many command line arguments\n", stderr); | |
227 | exit (EXIT_FAILURE); | |
228 | } | |
229 | ||
0083c904 | 230 | { |
1f414ac4 BK |
231 | static const char var[] = "TARGET_MACHINE"; |
232 | pz_machine = getenv (var); | |
233 | if (pz_machine == (char *) NULL) | |
0083c904 | 234 | { |
1f414ac4 | 235 | fprintf (stderr, var_not_found, var); |
0083c904 BK |
236 | exit (EXIT_FAILURE); |
237 | } | |
238 | } | |
239 | ||
240 | { | |
1f414ac4 BK |
241 | static const char var[] = "DESTDIR"; |
242 | pz_dest_dir = getenv (var); | |
243 | if (pz_dest_dir == (char *) NULL) | |
0083c904 | 244 | { |
1f414ac4 | 245 | fprintf (stderr, var_not_found, var); |
0083c904 BK |
246 | exit (EXIT_FAILURE); |
247 | } | |
248 | } | |
249 | ||
250 | { | |
1f414ac4 BK |
251 | static const char var[] = "SRCDIR"; |
252 | pz_src_dir = getenv (var); | |
253 | if (pz_src_dir == (char *) NULL) | |
0083c904 | 254 | { |
1f414ac4 | 255 | fprintf (stderr, var_not_found, var); |
0083c904 BK |
256 | exit (EXIT_FAILURE); |
257 | } | |
258 | } | |
259 | ||
b35926b9 BK |
260 | { |
261 | static const char var[] = "VERBOSE"; | |
262 | char* pz = getenv (var); | |
263 | if (pz != (char *) NULL) | |
264 | { | |
265 | if (isdigit( *pz )) | |
266 | verbose_level = (te_verbose)atoi( pz ); | |
267 | else | |
268 | switch (*pz) { | |
269 | case 's': | |
270 | case 'S': | |
271 | verbose_level = VERB_SILENT; break; | |
272 | ||
273 | case 'f': | |
274 | case 'F': | |
275 | verbose_level = VERB_FIXES; break; | |
276 | ||
277 | case 'a': | |
278 | case 'A': | |
279 | verbose_level = VERB_APPLIES; break; | |
280 | ||
281 | case 'p': | |
282 | case 'P': | |
283 | verbose_level = VERB_PROGRESS; break; | |
284 | ||
285 | case 't': | |
286 | case 'T': | |
287 | verbose_level = VERB_TESTS; break; | |
288 | ||
289 | case 'e': | |
290 | case 'E': | |
291 | verbose_level = VERB_EVERYTHING; break; | |
292 | } | |
293 | } | |
294 | } | |
295 | ||
7d9ccd90 BK |
296 | { |
297 | static const char var[] = "FIND_BASE"; | |
5abc1f74 BK |
298 | char *pz = getenv (var); |
299 | if (pz == (char *) NULL) | |
7d9ccd90 BK |
300 | { |
301 | fprintf (stderr, var_not_found, var); | |
302 | exit (EXIT_FAILURE); | |
303 | } | |
5abc1f74 BK |
304 | while ((pz[0] == '.') && (pz[1] == '/')) |
305 | pz += 2; | |
306 | if ((pz[0] != '.') || (pz[1] != NUL)) | |
307 | find_base_len = strlen( pz ); | |
7d9ccd90 BK |
308 | } |
309 | ||
1f414ac4 BK |
310 | /* Compile all the regular expressions now. |
311 | That way, it is done only once for the whole run. | |
312 | */ | |
313 | run_compiles (); | |
0083c904 | 314 | |
1f414ac4 | 315 | signal (SIGQUIT, SIG_IGN); |
35dfe415 | 316 | #ifdef SIGIOT |
1f414ac4 | 317 | signal (SIGIOT, SIG_IGN); |
35dfe415 | 318 | #endif |
1f414ac4 BK |
319 | signal (SIGPIPE, SIG_IGN); |
320 | signal (SIGALRM, SIG_IGN); | |
321 | signal (SIGTERM, SIG_IGN); | |
0083c904 | 322 | } |
0083c904 | 323 | |
1f414ac4 | 324 | /* * * * * * * * * * * * * |
5abc1f74 | 325 | |
1f414ac4 BK |
326 | load_file loads all the contents of a file into malloc-ed memory. |
327 | Its argument is the name of the file to read in; the returned | |
328 | result is the NUL terminated contents of the file. The file | |
329 | is presumed to be an ASCII text file containing no NULs. */ | |
0083c904 | 330 | char * |
5abc1f74 BK |
331 | load_file ( fname ) |
332 | const char* fname; | |
0083c904 | 333 | { |
5abc1f74 BK |
334 | struct stat stbf; |
335 | char* res; | |
0083c904 | 336 | |
5abc1f74 | 337 | if (stat (fname, &stbf) != 0) |
0083c904 | 338 | { |
b35926b9 BK |
339 | if (NOT_SILENT) |
340 | fprintf (stderr, "error %d (%s) stat-ing %s\n", | |
f95e46b9 | 341 | errno, xstrerror (errno), fname ); |
5abc1f74 | 342 | return (char *) NULL; |
0083c904 | 343 | } |
5abc1f74 BK |
344 | if (stbf.st_size == 0) |
345 | return (char*)NULL; | |
0083c904 | 346 | |
5abc1f74 BK |
347 | data_map_size = stbf.st_size+1; |
348 | data_map_fd = open (fname, O_RDONLY); | |
349 | ttl_data_size += data_map_size-1; | |
0083c904 | 350 | |
5abc1f74 BK |
351 | if (data_map_fd < 0) |
352 | { | |
b35926b9 BK |
353 | if (NOT_SILENT) |
354 | fprintf (stderr, "error %d (%s) opening %s for read\n", | |
f95e46b9 | 355 | errno, xstrerror (errno), fname); |
5abc1f74 BK |
356 | return (char*)NULL; |
357 | } | |
0083c904 | 358 | |
56f02b88 | 359 | #ifdef HAVE_MMAP_FILE |
5abc1f74 BK |
360 | curr_data_mapped = BOOL_TRUE; |
361 | res = (char*)mmap ((void*)NULL, data_map_size, PROT_READ, MAP_PRIVATE, | |
362 | data_map_fd, 0); | |
363 | if (res == (char*)BAD_ADDR) | |
364 | { | |
365 | curr_data_mapped = BOOL_FALSE; | |
366 | res = load_file_data ( fdopen (data_map_fd, "r")); | |
367 | } | |
368 | #else | |
369 | curr_data_mapped = BOOL_FALSE; | |
370 | res = load_file_data ( fdopen (data_map_fd, "r")); | |
371 | #endif | |
0083c904 | 372 | |
5abc1f74 | 373 | return res; |
0083c904 BK |
374 | } |
375 | ||
376 | ||
1f414ac4 | 377 | /* * * * * * * * * * * * * |
5abc1f74 | 378 | |
1f414ac4 BK |
379 | run_compiles run all the regexp compiles for all the fixes once. |
380 | */ | |
0083c904 | 381 | void |
1f414ac4 | 382 | run_compiles () |
0083c904 | 383 | { |
1f414ac4 BK |
384 | tFixDesc *p_fixd = fixDescList; |
385 | int fix_ct = FIX_COUNT; | |
386 | tTestDesc *p_test; | |
387 | int test_ct; | |
1f414ac4 BK |
388 | const char *pz_err; |
389 | regex_t *p_re = (regex_t *) malloc (REGEX_COUNT * sizeof (regex_t)); | |
390 | ||
391 | if (p_re == (regex_t *) NULL) | |
0083c904 BK |
392 | { |
393 | fprintf (stderr, "fixincl ERROR: cannot allocate %d bytes for regex\n", | |
394 | REGEX_COUNT * sizeof (regex_t)); | |
395 | exit (EXIT_FAILURE); | |
396 | } | |
397 | ||
b51207a4 | 398 | /* Make sure compile_re does not stumble across invalid data */ |
d1c6a037 BK |
399 | |
400 | memset ( (void*)p_re, '\0', REGEX_COUNT * sizeof (regex_t) ); | |
401 | memset ( (void*)&incl_quote_re, '\0', sizeof (regex_t) ); | |
402 | ||
b51207a4 | 403 | compile_re (incl_quote_pat, &incl_quote_re, 1, |
35dfe415 BK |
404 | "quoted include", "run_compiles"); |
405 | ||
406 | /* Allow machine name tests to be ignored (testing, mainly) */ | |
407 | ||
48a259fc | 408 | if (pz_machine && ((*pz_machine == '\0') || (*pz_machine == '*'))) |
35dfe415 | 409 | pz_machine = (char*)NULL; |
0083c904 | 410 | |
1f414ac4 | 411 | /* FOR every fixup, ... */ |
0083c904 BK |
412 | do |
413 | { | |
1f414ac4 BK |
414 | p_test = p_fixd->p_test_desc; |
415 | test_ct = p_fixd->test_ct; | |
0083c904 | 416 | |
1f414ac4 BK |
417 | /* IF the machine type pointer is not NULL (we are not in test mode) |
418 | AND this test is for or not done on particular machines | |
419 | THEN ... */ | |
420 | ||
421 | if ( (pz_machine != NULL) | |
422 | && (p_fixd->papz_machs != (const char**) NULL) ) | |
423 | { | |
5abc1f74 | 424 | tSCC case_fmt[] = "case %s in\n"; /* 9 bytes, plus string */ |
99d525c9 PDM |
425 | tSCC esac_fmt[] = |
426 | " )\n echo %s ;;\n* ) echo %s ;;\nesac";/* 4 bytes */ | |
5abc1f74 BK |
427 | tSCC skip[] = "skip"; /* 4 bytes */ |
428 | tSCC run[] = "run"; /* 3 bytes */ | |
429 | /* total bytes to add to machine sum: 49 - see fixincl.tpl */ | |
430 | ||
1f414ac4 | 431 | const char **papz_machs = p_fixd->papz_machs; |
5abc1f74 | 432 | char *pz; |
1f414ac4 BK |
433 | char *pz_sep = ""; |
434 | tCC *pz_if_true; | |
435 | tCC *pz_if_false; | |
5abc1f74 | 436 | char cmd_buf[ MACH_LIST_SIZE_LIMIT ]; /* size lim from fixincl.tpl */ |
1f414ac4 | 437 | |
5abc1f74 | 438 | /* Start the case statement */ |
1f414ac4 | 439 | |
5abc1f74 BK |
440 | sprintf (cmd_buf, case_fmt, pz_machine); |
441 | pz = cmd_buf + strlen (cmd_buf); | |
1f414ac4 | 442 | |
5abc1f74 | 443 | /* Determine if a match means to apply the fix or not apply it */ |
1f414ac4 BK |
444 | |
445 | if (p_fixd->fd_flags & FD_MACH_IFNOT) | |
446 | { | |
447 | pz_if_true = skip; | |
448 | pz_if_false = run; | |
449 | } | |
450 | else | |
451 | { | |
452 | pz_if_true = run; | |
453 | pz_if_false = skip; | |
454 | } | |
455 | ||
5abc1f74 BK |
456 | /* Emit all the machine names. If there are more than one, |
457 | then we will insert " | \\\n" between the names */ | |
1f414ac4 BK |
458 | |
459 | for (;;) | |
460 | { | |
461 | const char* pz_mach = *(papz_machs++); | |
462 | ||
463 | if (pz_mach == (const char*) NULL) | |
464 | break; | |
5abc1f74 | 465 | sprintf (pz, "%s%s", pz_sep, pz_mach); |
1f414ac4 BK |
466 | pz += strlen (pz); |
467 | pz_sep = " | \\\n"; | |
468 | } | |
5abc1f74 BK |
469 | |
470 | /* Now emit the match and not-match actions and the esac */ | |
471 | ||
472 | sprintf (pz, esac_fmt, pz_if_true, pz_if_false); | |
1f414ac4 BK |
473 | |
474 | /* Run the script. | |
475 | The result will start either with 's' or 'r'. */ | |
476 | ||
7d032a4f RO |
477 | { |
478 | int skip; | |
5abc1f74 | 479 | pz = run_shell (cmd_buf); |
7d032a4f RO |
480 | skip = (*pz == 's'); |
481 | free ( (void*)pz ); | |
482 | if (skip) | |
483 | { | |
484 | p_fixd->fd_flags |= FD_SKIP_TEST; | |
485 | continue; | |
486 | } | |
487 | } | |
0083c904 | 488 | } |
0083c904 | 489 | |
1f414ac4 BK |
490 | /* FOR every test for the fixup, ... */ |
491 | ||
492 | while (--test_ct >= 0) | |
0083c904 | 493 | { |
1f414ac4 | 494 | switch (p_test->type) |
0083c904 BK |
495 | { |
496 | case TT_EGREP: | |
497 | case TT_NEGREP: | |
35dfe415 BK |
498 | #ifdef DEBUG |
499 | { | |
500 | static int re_ct = REGEX_COUNT; | |
0083c904 | 501 | |
35dfe415 BK |
502 | if (--re_ct < 0) |
503 | { | |
504 | fputs ("out of RE's\n", stderr); | |
505 | exit (EXIT_FAILURE); | |
506 | } | |
507 | } | |
508 | #endif | |
1f414ac4 | 509 | p_test->p_test_regex = p_re++; |
35dfe415 BK |
510 | compile_re (p_test->pz_test_text, p_test->p_test_regex, 0, |
511 | "select test", p_fixd->fix_name); | |
512 | } | |
1f414ac4 | 513 | p_test++; |
0083c904 BK |
514 | } |
515 | } | |
1f414ac4 | 516 | while (p_fixd++, --fix_ct > 0); |
0083c904 BK |
517 | } |
518 | ||
519 | ||
1f414ac4 | 520 | /* * * * * * * * * * * * * |
5abc1f74 | 521 | |
1f414ac4 BK |
522 | create_file Create the output modified file. |
523 | Input: the name of the file to create | |
524 | Returns: a file pointer to the new, open file */ | |
525 | ||
063174ee BK |
526 | #if defined(S_IRUSR) && defined(S_IWUSR) && \ |
527 | defined(S_IRGRP) && defined(S_IROTH) | |
528 | ||
529 | # define S_IRALL (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) | |
530 | #else | |
531 | # define S_IRALL 0644 | |
532 | #endif | |
533 | ||
534 | #if defined(S_IRWXU) && defined(S_IRGRP) && defined(S_IXGRP) && \ | |
535 | defined(S_IROTH) && defined(S_IXOTH) | |
536 | ||
537 | # define S_DIRALL (S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) | |
538 | #else | |
539 | # define S_DIRALL 0755 | |
540 | #endif | |
541 | ||
1f414ac4 | 542 | |
0083c904 | 543 | FILE * |
5abc1f74 | 544 | create_file () |
0083c904 BK |
545 | { |
546 | int fd; | |
547 | FILE *pf; | |
548 | char fname[MAXPATHLEN]; | |
549 | ||
5abc1f74 | 550 | sprintf (fname, "%s/%s", pz_dest_dir, pz_curr_file + find_base_len); |
0083c904 | 551 | |
1f414ac4 | 552 | fd = open (fname, O_WRONLY | O_CREAT | O_TRUNC, S_IRALL); |
0083c904 | 553 | |
1f414ac4 | 554 | /* We may need to create the directories needed... */ |
0083c904 BK |
555 | if ((fd < 0) && (errno == ENOENT)) |
556 | { | |
1f414ac4 | 557 | char *pz_dir = strchr (fname + 1, '/'); |
0083c904 BK |
558 | struct stat stbf; |
559 | ||
1f414ac4 | 560 | while (pz_dir != (char *) NULL) |
0083c904 | 561 | { |
1f414ac4 | 562 | *pz_dir = NUL; |
0083c904 BK |
563 | if (stat (fname, &stbf) < 0) |
564 | { | |
063174ee | 565 | mkdir (fname, S_IFDIR | S_DIRALL); |
0083c904 BK |
566 | } |
567 | ||
1f414ac4 BK |
568 | *pz_dir = '/'; |
569 | pz_dir = strchr (pz_dir + 1, '/'); | |
0083c904 | 570 | } |
1f414ac4 BK |
571 | |
572 | /* Now, lets try the open again... */ | |
573 | fd = open (fname, O_WRONLY | O_CREAT | O_TRUNC, S_IRALL); | |
0083c904 BK |
574 | } |
575 | if (fd < 0) | |
576 | { | |
577 | fprintf (stderr, "Error %d (%s) creating %s\n", | |
f95e46b9 | 578 | errno, xstrerror (errno), fname); |
0083c904 BK |
579 | exit (EXIT_FAILURE); |
580 | } | |
b35926b9 BK |
581 | if (NOT_SILENT) |
582 | fprintf (stderr, "Fixed: %s\n", pz_curr_file); | |
0083c904 BK |
583 | pf = fdopen (fd, "w"); |
584 | ||
585 | #ifdef LATER | |
586 | { | |
1f414ac4 BK |
587 | static const char hdr[] = |
588 | "/* DO NOT EDIT THIS FILE.\n\n" | |
589 | " It has been auto-edited by fixincludes from /usr/include/%s\n" | |
590 | " This had to be done to correct non-standard usages in the\n" | |
591 | " original, manufacturer supplied header file. */\n\n"; | |
592 | ||
5abc1f74 | 593 | fprintf (pf, hdr, pz_curr_file); |
0083c904 BK |
594 | } |
595 | #endif | |
596 | return pf; | |
597 | } | |
598 | ||
0083c904 | 599 | |
1f414ac4 | 600 | /* * * * * * * * * * * * * |
0083c904 | 601 | |
1f414ac4 BK |
602 | test_test make sure a shell-style test expression passes. |
603 | Input: a pointer to the descriptor of the test to run and | |
604 | the name of the file that we might want to fix | |
5abc1f74 | 605 | Result: APPLY_FIX or SKIP_FIX, depending on the result of the |
1f414ac4 BK |
606 | shell script we run. */ |
607 | ||
5abc1f74 BK |
608 | int |
609 | test_test (p_test, pz_test_file) | |
1f414ac4 | 610 | tTestDesc *p_test; |
5abc1f74 | 611 | char* pz_test_file; |
1f414ac4 | 612 | { |
94db2f71 BK |
613 | tSCC cmd_fmt[] = |
614 | "file=%s\n\ | |
615 | if ( test %s ) > /dev/null 2>&1\n\ | |
616 | then echo TRUE\n\ | |
617 | else echo FALSE\n\ | |
618 | fi"; | |
619 | ||
1f414ac4 | 620 | char *pz_res; |
5abc1f74 | 621 | int res = SKIP_FIX; |
1f414ac4 BK |
622 | |
623 | static char cmd_buf[4096]; | |
1f414ac4 | 624 | |
5abc1f74 | 625 | sprintf (cmd_buf, cmd_fmt, pz_test_file, p_test->pz_test_text); |
1f414ac4 BK |
626 | pz_res = run_shell (cmd_buf); |
627 | if (*pz_res == 'T') | |
5abc1f74 | 628 | res = APPLY_FIX; |
1f414ac4 | 629 | free ((void *) pz_res); |
0083c904 BK |
630 | return res; |
631 | } | |
632 | ||
633 | ||
1f414ac4 | 634 | /* * * * * * * * * * * * * |
5abc1f74 | 635 | |
1f414ac4 BK |
636 | egrep_test make sure an egrep expression is found in the file text. |
637 | Input: a pointer to the descriptor of the test to run and | |
638 | the pointer to the contents of the file under suspicion | |
5abc1f74 | 639 | Result: APPLY_FIX if the pattern is found, SKIP_FIX otherwise |
1f414ac4 | 640 | |
5abc1f74 | 641 | The caller may choose to reverse meaning if the sense of the test |
1f414ac4 BK |
642 | is inverted. */ |
643 | ||
5abc1f74 | 644 | int |
1f414ac4 BK |
645 | egrep_test (pz_data, p_test) |
646 | char *pz_data; | |
647 | tTestDesc *p_test; | |
0083c904 | 648 | { |
5abc1f74 | 649 | #ifdef DEBUG |
1f414ac4 BK |
650 | if (p_test->p_test_regex == 0) |
651 | fprintf (stderr, "fixincl ERROR RE not compiled: `%s'\n", | |
652 | p_test->pz_test_text); | |
0083c904 | 653 | #endif |
b51207a4 | 654 | if (regexec (p_test->p_test_regex, pz_data, 0, 0, 0) == 0) |
5abc1f74 BK |
655 | return APPLY_FIX; |
656 | return SKIP_FIX; | |
0083c904 BK |
657 | } |
658 | ||
659 | ||
94db2f71 BK |
660 | /* * * * * * * * * * * * * |
661 | ||
662 | quoted_file_exists Make sure that a file exists before we emit | |
663 | the file name. If we emit the name, our invoking shell will try | |
664 | to copy a non-existing file into the destination directory. */ | |
665 | ||
666 | int | |
667 | quoted_file_exists (pz_src_path, pz_file_path, pz_file) | |
668 | char* pz_src_path; | |
669 | char* pz_file_path; | |
670 | char* pz_file; | |
671 | { | |
672 | char z[ MAXPATHLEN ]; | |
673 | char* pz; | |
674 | sprintf (z, "%s/%s/", pz_src_path, pz_file_path); | |
675 | pz = z + strlen ( z ); | |
676 | ||
677 | for (;;) { | |
678 | char ch = *pz_file++; | |
5abc1f74 | 679 | if (! ISGRAPH( ch )) |
94db2f71 BK |
680 | return 0; |
681 | if (ch == '"') | |
682 | break; | |
683 | *pz++ = ch; | |
684 | } | |
685 | *pz = '\0'; | |
686 | { | |
687 | struct stat s; | |
688 | if (stat (z, &s) != 0) | |
689 | return 0; | |
690 | return S_ISREG( s.st_mode ); | |
691 | } | |
692 | } | |
693 | ||
694 | ||
1f414ac4 BK |
695 | /* * * * * * * * * * * * * |
696 | * | |
697 | extract_quoted_files | |
5abc1f74 | 698 | |
1f414ac4 BK |
699 | The syntax, `#include "file.h"' specifies that the compiler is to |
700 | search the local directory of the current file before the include | |
701 | list. Consequently, if we have modified a header and stored it in | |
702 | another directory, any files that are included by that modified | |
703 | file in that fashion must also be copied into this new directory. | |
704 | This routine finds those flavors of #include and for each one found | |
705 | emits a triple of: | |
5abc1f74 | 706 | |
1f414ac4 BK |
707 | 1. source directory of the original file |
708 | 2. the relative path file name of the #includ-ed file | |
709 | 3. the full destination path for this file | |
710 | ||
711 | Input: the text of the file, the file name and a pointer to the | |
712 | match list where the match information was stored. | |
713 | Result: internally nothing. The results are written to stdout | |
714 | for interpretation by the invoking shell */ | |
0083c904 | 715 | |
94db2f71 | 716 | |
0083c904 | 717 | void |
5abc1f74 | 718 | extract_quoted_files (pz_data, pz_fixed_file, p_re_match) |
1f414ac4 | 719 | char *pz_data; |
5abc1f74 | 720 | const char *pz_fixed_file; |
1f414ac4 | 721 | regmatch_t *p_re_match; |
0083c904 | 722 | { |
5abc1f74 | 723 | char *pz_dir_end = strrchr (pz_fixed_file, '/'); |
1f414ac4 | 724 | char *pz_incl_quot = pz_data; |
0083c904 | 725 | |
b35926b9 BK |
726 | if (VLEVEL( VERB_APPLIES )) |
727 | fprintf (stderr, "Quoted includes in %s\n", pz_fixed_file); | |
0083c904 | 728 | |
5abc1f74 | 729 | /* Set "pz_fixed_file" to point to the containing subdirectory of the source |
94db2f71 | 730 | If there is none, then it is in our current directory, ".". */ |
1f414ac4 BK |
731 | |
732 | if (pz_dir_end == (char *) NULL) | |
5abc1f74 | 733 | pz_fixed_file = "."; |
0083c904 | 734 | else |
1f414ac4 | 735 | *pz_dir_end = '\0'; |
0083c904 BK |
736 | |
737 | for (;;) | |
738 | { | |
1f414ac4 BK |
739 | pz_incl_quot += p_re_match->rm_so; |
740 | ||
741 | /* Skip forward to the included file name */ | |
92a438d1 | 742 | while (ISSPACE (*pz_incl_quot)) |
1f414ac4 | 743 | pz_incl_quot++; |
92a438d1 | 744 | /* ISSPACE() may evaluate is argument more than once! */ |
5abc1f74 | 745 | while (++pz_incl_quot, ISSPACE (*pz_incl_quot)) |
1f414ac4 BK |
746 | ; |
747 | pz_incl_quot += sizeof ("include") - 1; | |
748 | while (*pz_incl_quot++ != '"') | |
749 | ; | |
750 | ||
5abc1f74 | 751 | if (quoted_file_exists (pz_src_dir, pz_fixed_file, pz_incl_quot)) |
94db2f71 BK |
752 | { |
753 | /* Print the source directory and the subdirectory | |
754 | of the file in question. */ | |
5abc1f74 | 755 | printf ("%s %s/", pz_src_dir, pz_fixed_file); |
94db2f71 BK |
756 | pz_dir_end = pz_incl_quot; |
757 | ||
758 | /* Append to the directory the relative path of the desired file */ | |
759 | while (*pz_incl_quot != '"') | |
760 | putc (*pz_incl_quot++, stdout); | |
761 | ||
762 | /* Now print the destination directory appended with the | |
763 | relative path of the desired file */ | |
5abc1f74 | 764 | printf (" %s/%s/", pz_dest_dir, pz_fixed_file); |
94db2f71 BK |
765 | while (*pz_dir_end != '"') |
766 | putc (*pz_dir_end++, stdout); | |
767 | ||
768 | /* End of entry */ | |
769 | putc ('\n', stdout); | |
770 | } | |
0083c904 | 771 | |
1f414ac4 BK |
772 | /* Find the next entry */ |
773 | if (regexec (&incl_quote_re, pz_incl_quot, 1, p_re_match, 0) != 0) | |
0083c904 BK |
774 | break; |
775 | } | |
776 | } | |
777 | ||
778 | ||
5abc1f74 BK |
779 | /* * * * * * * * * * * * * |
780 | ||
781 | Somebody wrote a *_fix subroutine that we must call. | |
782 | */ | |
783 | ||
784 | int | |
785 | internal_fix (read_fd, p_fixd) | |
786 | int read_fd; | |
787 | tFixDesc* p_fixd; | |
788 | { | |
789 | int fd[2]; | |
790 | ||
791 | if (pipe( fd ) != 0) | |
792 | { | |
793 | fprintf (stderr, "Error %d on pipe(2) call\n", errno ); | |
794 | exit (EXIT_FAILURE); | |
795 | } | |
796 | ||
797 | for (;;) | |
798 | { | |
799 | pid_t childid = fork(); | |
800 | ||
801 | switch (childid) | |
802 | { | |
803 | case -1: | |
804 | break; | |
805 | ||
806 | case 0: | |
807 | close (fd[0]); | |
808 | goto do_child_task; | |
809 | ||
810 | default: | |
811 | /* | |
812 | * Parent process | |
813 | */ | |
814 | close (read_fd); | |
815 | close (fd[1]); | |
816 | return fd[0]; | |
817 | } | |
818 | ||
819 | /* | |
820 | * Parent in error | |
821 | */ | |
f95e46b9 | 822 | fprintf (stderr, z_fork_err, errno, xstrerror (errno), |
5abc1f74 BK |
823 | p_fixd->fix_name); |
824 | { | |
825 | static int failCt = 0; | |
826 | if ((errno != EAGAIN) || (++failCt > 10)) | |
827 | exit (EXIT_FAILURE); | |
828 | sleep (1); | |
829 | } | |
830 | } do_child_task:; | |
831 | ||
832 | /* | |
833 | * Close our current stdin and stdout | |
834 | */ | |
835 | close (STDIN_FILENO); | |
836 | close (STDOUT_FILENO); | |
837 | UNLOAD_DATA(); | |
838 | ||
839 | /* | |
840 | * Make the fd passed in the stdin, and the write end of | |
841 | * the new pipe become the stdout. | |
842 | */ | |
843 | fcntl (fd[1], F_DUPFD, STDOUT_FILENO); | |
844 | fcntl (read_fd, F_DUPFD, STDIN_FILENO); | |
5abc1f74 | 845 | |
35dfe415 | 846 | apply_fix (p_fixd, pz_curr_file); |
5abc1f74 BK |
847 | exit (0); |
848 | } | |
849 | ||
bb786201 BK |
850 | |
851 | /* * * * * * * * * * * * * | |
852 | ||
853 | This loop should only cycle for 1/2 of one loop. | |
854 | "chain_open" starts a process that uses "read_fd" as | |
855 | its stdin and returns the new fd this process will use | |
856 | for stdout. */ | |
857 | ||
858 | int | |
5abc1f74 | 859 | start_fixer (read_fd, p_fixd, pz_fix_file) |
bb786201 BK |
860 | int read_fd; |
861 | tFixDesc* p_fixd; | |
5abc1f74 | 862 | char* pz_fix_file; |
bb786201 | 863 | { |
bb786201 BK |
864 | tCC* pz_cmd_save; |
865 | char* pz_cmd; | |
866 | ||
5abc1f74 BK |
867 | if ((p_fixd->fd_flags & FD_SUBROUTINE) != 0) |
868 | return internal_fix (read_fd, p_fixd); | |
869 | ||
bb786201 BK |
870 | if ((p_fixd->fd_flags & FD_SHELL_SCRIPT) == 0) |
871 | pz_cmd = (char*)NULL; | |
872 | else | |
873 | { | |
874 | tSCC z_cmd_fmt[] = "file='%s'\n%s"; | |
5abc1f74 | 875 | pz_cmd = (char*)malloc (strlen (p_fixd->patch_args[2]) |
bb786201 | 876 | + sizeof( z_cmd_fmt ) |
5abc1f74 BK |
877 | + strlen( pz_fix_file )); |
878 | if (pz_cmd == (char*)NULL) | |
879 | { | |
880 | fputs ("allocation failure\n", stderr); | |
881 | exit (EXIT_FAILURE); | |
882 | } | |
883 | sprintf (pz_cmd, z_cmd_fmt, pz_fix_file, p_fixd->patch_args[2]); | |
bb786201 BK |
884 | pz_cmd_save = p_fixd->patch_args[2]; |
885 | p_fixd->patch_args[2] = pz_cmd; | |
886 | } | |
887 | ||
b35926b9 BK |
888 | /* Start a fix process, handing off the previous read fd for its |
889 | stdin and getting a new fd that reads from the fix process' stdout. | |
890 | We normally will not loop, but we will up to 10 times if we keep | |
891 | getting "EAGAIN" errors. | |
892 | ||
893 | */ | |
bb786201 BK |
894 | for (;;) |
895 | { | |
896 | static int failCt = 0; | |
897 | int fd; | |
898 | ||
899 | fd = chain_open (read_fd, | |
900 | (t_pchar *) p_fixd->patch_args, | |
901 | (process_chain_head == -1) | |
902 | ? &process_chain_head : (pid_t *) NULL); | |
903 | ||
904 | if (fd != -1) | |
905 | { | |
906 | read_fd = fd; | |
907 | break; | |
908 | } | |
909 | ||
f95e46b9 | 910 | fprintf (stderr, z_fork_err, errno, xstrerror (errno), |
bb786201 BK |
911 | p_fixd->fix_name); |
912 | ||
913 | if ((errno != EAGAIN) || (++failCt > 10)) | |
914 | exit (EXIT_FAILURE); | |
915 | sleep (1); | |
916 | } | |
917 | ||
b35926b9 BK |
918 | /* IF we allocated a shell script command, |
919 | THEN free it and restore the command format to the fix description */ | |
bb786201 BK |
920 | if (pz_cmd != (char*)NULL) |
921 | { | |
922 | free ((void*)pz_cmd); | |
923 | p_fixd->patch_args[2] = pz_cmd_save; | |
924 | } | |
925 | ||
926 | return read_fd; | |
927 | } | |
928 | ||
5abc1f74 | 929 | |
1f414ac4 BK |
930 | /* * * * * * * * * * * * * |
931 | ||
932 | Process the potential fixes for a particular include file. | |
933 | Input: the original text of the file and the file's name | |
934 | Result: none. A new file may or may not be created. */ | |
935 | ||
5abc1f74 BK |
936 | t_bool |
937 | fix_applies (p_fixd) | |
938 | tFixDesc *p_fixd; | |
0083c904 | 939 | { |
b35926b9 BK |
940 | #ifdef DEBUG |
941 | static const char z_failed[] = "not applying %s to %s - test %d failed\n"; | |
942 | #endif | |
ae5c839b ZW |
943 | const char *pz_fname = pz_curr_file; |
944 | const char *pz_scan = p_fixd->file_list; | |
5abc1f74 BK |
945 | int test_ct; |
946 | tTestDesc *p_test; | |
0083c904 | 947 | |
5abc1f74 BK |
948 | if (p_fixd->fd_flags & FD_SKIP_TEST) |
949 | return BOOL_FALSE; | |
0083c904 | 950 | |
5abc1f74 BK |
951 | /* IF there is a file name restriction, |
952 | THEN ensure the current file name matches one in the pattern */ | |
953 | ||
ae5c839b | 954 | if (pz_scan != (char *) NULL) |
5abc1f74 | 955 | { |
5abc1f74 | 956 | size_t name_len; |
0083c904 | 957 | |
5abc1f74 BK |
958 | while ((pz_fname[0] == '.') && (pz_fname[1] == '/')) |
959 | pz_fname += 2; | |
960 | name_len = strlen (pz_fname); | |
1f414ac4 | 961 | |
5abc1f74 | 962 | for (;;) |
0083c904 | 963 | { |
5abc1f74 BK |
964 | pz_scan = strstr (pz_scan + 1, pz_fname); |
965 | /* IF we can't match the string at all, | |
966 | THEN bail */ | |
b35926b9 BK |
967 | if (pz_scan == (char *) NULL) { |
968 | #ifdef DEBUG | |
969 | if (VLEVEL( VERB_EVERYTHING )) | |
970 | fprintf (stderr, "file %s not in list for %s\n", | |
971 | pz_fname, p_fixd->fix_name ); | |
972 | #endif | |
5abc1f74 | 973 | return BOOL_FALSE; |
b35926b9 | 974 | } |
0083c904 | 975 | |
5abc1f74 BK |
976 | /* IF the match is surrounded by the '|' markers, |
977 | THEN we found a full match -- time to run the tests */ | |
0083c904 | 978 | |
5abc1f74 BK |
979 | if ((pz_scan[-1] == '|') && (pz_scan[name_len] == '|')) |
980 | break; | |
981 | } | |
982 | } | |
0083c904 | 983 | |
5abc1f74 BK |
984 | /* FOR each test, see if it fails. |
985 | IF it does fail, then we go on to the next test */ | |
1f414ac4 | 986 | |
5abc1f74 BK |
987 | for (p_test = p_fixd->p_test_desc, test_ct = p_fixd->test_ct; |
988 | test_ct-- > 0; | |
989 | p_test++) | |
990 | { | |
991 | switch (p_test->type) | |
992 | { | |
993 | case TT_TEST: | |
b35926b9 BK |
994 | if (test_test (p_test, pz_curr_file) != APPLY_FIX) { |
995 | #ifdef DEBUG | |
996 | if (VLEVEL( VERB_EVERYTHING )) | |
997 | fprintf (stderr, z_failed, p_fixd->fix_name, pz_fname, | |
998 | p_fixd->test_ct - test_ct); | |
999 | #endif | |
5abc1f74 | 1000 | return BOOL_FALSE; |
b35926b9 | 1001 | } |
5abc1f74 BK |
1002 | break; |
1003 | ||
1004 | case TT_EGREP: | |
b35926b9 BK |
1005 | if (egrep_test (pz_curr_data, p_test) != APPLY_FIX) { |
1006 | #ifdef DEBUG | |
1007 | if (VLEVEL( VERB_EVERYTHING )) | |
1008 | fprintf (stderr, z_failed, p_fixd->fix_name, pz_fname, | |
1009 | p_fixd->test_ct - test_ct); | |
1010 | #endif | |
5abc1f74 | 1011 | return BOOL_FALSE; |
b35926b9 | 1012 | } |
5abc1f74 BK |
1013 | break; |
1014 | ||
1015 | case TT_NEGREP: | |
b35926b9 BK |
1016 | if (egrep_test (pz_curr_data, p_test) == APPLY_FIX) { |
1017 | #ifdef DEBUG | |
1018 | if (VLEVEL( VERB_EVERYTHING )) | |
1019 | fprintf (stderr, z_failed, p_fixd->fix_name, pz_fname, | |
1020 | p_fixd->test_ct - test_ct); | |
1021 | #endif | |
5abc1f74 BK |
1022 | /* Negated sense */ |
1023 | return BOOL_FALSE; | |
b35926b9 | 1024 | } |
5abc1f74 BK |
1025 | break; |
1026 | ||
1027 | case TT_FUNCTION: | |
1028 | if (run_test (p_test->pz_test_text, pz_curr_file, pz_curr_data) | |
b35926b9 BK |
1029 | != APPLY_FIX) { |
1030 | #ifdef DEBUG | |
1031 | if (VLEVEL( VERB_EVERYTHING )) | |
1032 | fprintf (stderr, z_failed, p_fixd->fix_name, pz_fname, | |
1033 | p_fixd->test_ct - test_ct); | |
1034 | #endif | |
5abc1f74 | 1035 | return BOOL_FALSE; |
b35926b9 | 1036 | } |
5abc1f74 | 1037 | break; |
0083c904 | 1038 | } |
5abc1f74 | 1039 | } |
0083c904 | 1040 | |
5abc1f74 BK |
1041 | return BOOL_TRUE; |
1042 | } | |
0083c904 | 1043 | |
0083c904 | 1044 | |
5abc1f74 BK |
1045 | /* * * * * * * * * * * * * |
1046 | ||
1047 | Write out a replacement file */ | |
1048 | ||
1049 | void | |
1050 | write_replacement (p_fixd) | |
1051 | tFixDesc *p_fixd; | |
1052 | { | |
1053 | const char* pz_text = p_fixd->patch_args[0]; | |
1054 | ||
1055 | if ((pz_text == (char*)NULL) || (*pz_text == NUL)) | |
1056 | return; | |
1057 | ||
1058 | { | |
1059 | FILE* out_fp = create_file (pz_curr_file); | |
1060 | fputs (pz_text, out_fp); | |
1061 | fclose (out_fp); | |
1062 | } | |
1063 | } | |
1064 | ||
1065 | ||
1066 | /* * * * * * * * * * * * * | |
1067 | ||
1068 | We have work to do. Read back in the output | |
1069 | of the filtering chain. Compare each byte as we read it with | |
1070 | the contents of the original file. As soon as we find any | |
1071 | difference, we will create the output file, write out all | |
1072 | the matched text and then copy any remaining data from the | |
1073 | output of the filter chain. | |
1074 | */ | |
1075 | void | |
1076 | test_for_changes (read_fd) | |
1077 | int read_fd; | |
1078 | { | |
1079 | FILE *in_fp = fdopen (read_fd, "r"); | |
1080 | FILE *out_fp = (FILE *) NULL; | |
1081 | char *pz_cmp = pz_curr_data; | |
1082 | ||
1083 | #ifdef DO_STATS | |
1084 | fixed_ct++; | |
1f414ac4 | 1085 | #endif |
5abc1f74 BK |
1086 | for (;;) |
1087 | { | |
1088 | int ch; | |
0083c904 | 1089 | |
5abc1f74 BK |
1090 | ch = getc (in_fp); |
1091 | if (ch == EOF) | |
1092 | break; | |
1093 | ||
1094 | /* IF we are emitting the output | |
1095 | THEN emit this character, too. | |
1096 | */ | |
1097 | if (out_fp != (FILE *) NULL) | |
1098 | putc (ch, out_fp); | |
1099 | ||
1100 | /* ELSE if this character does not match the original, | |
1101 | THEN now is the time to start the output. | |
1102 | */ | |
1103 | else if (ch != *pz_cmp) | |
1104 | { | |
1105 | out_fp = create_file (pz_curr_file); | |
1106 | ||
1107 | #ifdef DO_STATS | |
1108 | altered_ct++; | |
1f414ac4 | 1109 | #endif |
5abc1f74 BK |
1110 | /* IF there are matched data, write the matched part now. */ |
1111 | if (pz_cmp != pz_curr_data) | |
1112 | fwrite (pz_curr_data, (size_t)(pz_cmp - pz_curr_data), 1, out_fp); | |
1113 | ||
1114 | /* Emit the current unmatching character */ | |
1115 | putc (ch, out_fp); | |
0083c904 | 1116 | } |
5abc1f74 BK |
1117 | else |
1118 | /* ELSE the character matches. Advance the compare ptr */ | |
1119 | pz_cmp++; | |
1120 | } | |
1121 | ||
1122 | /* IF we created the output file, ... */ | |
1123 | if (out_fp != (FILE *) NULL) | |
1124 | { | |
1125 | regmatch_t match; | |
1126 | ||
1127 | /* Close the file and see if we have to worry about | |
1128 | `#include "file.h"' constructs. */ | |
1129 | fclose (out_fp); | |
1130 | if (regexec (&incl_quote_re, pz_curr_data, 1, &match, 0) == 0) | |
1131 | extract_quoted_files (pz_curr_data, pz_curr_file, &match); | |
1132 | } | |
1133 | ||
1134 | fclose (in_fp); | |
1135 | close (read_fd); /* probably redundant, but I'm paranoid */ | |
1136 | } | |
1137 | ||
1138 | ||
1139 | /* * * * * * * * * * * * * | |
1140 | ||
1141 | Process the potential fixes for a particular include file. | |
1142 | Input: the original text of the file and the file's name | |
1143 | Result: none. A new file may or may not be created. */ | |
1144 | ||
1145 | void | |
1146 | process () | |
1147 | { | |
1148 | static char env_current_file[1024]; | |
1149 | tFixDesc *p_fixd = fixDescList; | |
1150 | int todo_ct = FIX_COUNT; | |
1151 | int read_fd = -1; | |
1152 | int num_children = 0; | |
1153 | ||
1154 | if (access (pz_curr_file, R_OK) != 0) | |
1155 | { | |
1156 | int erno = errno; | |
1157 | fprintf (stderr, "Cannot access %s from %s\n\terror %d (%s)\n", | |
1158 | pz_curr_file, getcwd ((char *) NULL, MAXPATHLEN), | |
f95e46b9 | 1159 | erno, xstrerror (erno)); |
5abc1f74 BK |
1160 | return; |
1161 | } | |
1162 | ||
1163 | pz_curr_data = load_file (pz_curr_file); | |
1164 | if (pz_curr_data == (char *) NULL) | |
1165 | return; | |
1166 | ||
1167 | #ifdef DO_STATS | |
1168 | process_ct++; | |
1169 | #endif | |
d7eb5a45 | 1170 | if (VLEVEL( VERB_PROGRESS ) && have_tty) |
b35926b9 | 1171 | fprintf (stderr, "%6d %-50s \r", data_map_size, pz_curr_file ); |
5abc1f74 BK |
1172 | |
1173 | process_chain_head = NOPROCESS; | |
1174 | ||
1175 | /* For every fix in our fix list, ... */ | |
1176 | for (; todo_ct > 0; p_fixd++, todo_ct--) | |
1177 | { | |
1178 | if (! fix_applies (p_fixd)) | |
1179 | continue; | |
0083c904 | 1180 | |
b35926b9 BK |
1181 | if (VLEVEL( VERB_APPLIES )) |
1182 | fprintf (stderr, "Applying %-24s to %s\n", | |
1183 | p_fixd->fix_name, pz_curr_file); | |
5abc1f74 BK |
1184 | |
1185 | if (p_fixd->fd_flags & FD_REPLACEMENT) | |
1186 | { | |
1187 | write_replacement (p_fixd); | |
1188 | UNLOAD_DATA(); | |
1189 | return; | |
1190 | } | |
1f414ac4 BK |
1191 | |
1192 | /* IF we do not have a read pointer, | |
1193 | THEN this is the first fix for the current file. | |
1194 | Open the source file. That will be used as stdin for | |
1195 | the first fix. Any subsequent fixes will use the | |
5abc1f74 | 1196 | stdout descriptor of the previous fix for its stdin. */ |
0083c904 | 1197 | |
48ac9ce2 | 1198 | if (read_fd == -1) |
1f414ac4 | 1199 | { |
5abc1f74 | 1200 | read_fd = open (pz_curr_file, O_RDONLY); |
48ac9ce2 | 1201 | if (read_fd < 0) |
0083c904 | 1202 | { |
1f414ac4 | 1203 | fprintf (stderr, "Error %d (%s) opening %s\n", errno, |
f95e46b9 | 1204 | xstrerror (errno), pz_curr_file); |
1f414ac4 | 1205 | exit (EXIT_FAILURE); |
0083c904 | 1206 | } |
5abc1f74 BK |
1207 | |
1208 | /* Ensure we do not get duplicate output */ | |
1209 | ||
1210 | fflush (stdout); | |
1f414ac4 | 1211 | } |
0083c904 | 1212 | |
5abc1f74 | 1213 | read_fd = start_fixer (read_fd, p_fixd, pz_curr_file); |
bb786201 | 1214 | num_children++; |
0083c904 BK |
1215 | } |
1216 | ||
5abc1f74 BK |
1217 | /* IF we have a read-back file descriptor, |
1218 | THEN check for changes and write output if changed. */ | |
1f414ac4 | 1219 | |
5abc1f74 BK |
1220 | if (read_fd >= 0) |
1221 | { | |
1222 | test_for_changes (read_fd); | |
1223 | #ifdef DO_STATS | |
1224 | apply_ct += num_children; | |
1225 | #endif | |
1226 | /* Wait for child processes created by chain_open() | |
1227 | to avoid leaving zombies. */ | |
1228 | do { | |
1229 | wait ((int *) NULL); | |
1230 | } while (--num_children > 0); | |
1231 | } | |
9f8eec39 | 1232 | |
5abc1f74 | 1233 | UNLOAD_DATA(); |
0083c904 | 1234 | } |