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1f414ac4 BK |
1 | /* Install modified versions of certain ANSI-incompatible system header |
2 | files which are fixed to work correctly with ANSI C and placed in a | |
6e6a1681 | 3 | directory that GCC will search. |
1f414ac4 | 4 | |
90d04a44 | 5 | Copyright (C) 1997, 1998, 1999, 2000, 2004, 2009, 2012 |
748086b7 | 6 | Free Software Foundation, Inc. |
1f414ac4 | 7 | |
6e6a1681 | 8 | This file is part of GCC. |
1f414ac4 | 9 | |
6e6a1681 | 10 | GCC is free software; you can redistribute it and/or modify |
1f414ac4 | 11 | it under the terms of the GNU General Public License as published by |
748086b7 | 12 | the Free Software Foundation; either version 3, or (at your option) |
1f414ac4 BK |
13 | any later version. |
14 | ||
6e6a1681 | 15 | GCC is distributed in the hope that it will be useful, |
1f414ac4 BK |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
748086b7 | 18 | GNU General Public License for more details. |
1f414ac4 BK |
19 | |
20 | You should have received a copy of the GNU General Public License | |
748086b7 JJ |
21 | along with GCC; see the file COPYING3. If not see |
22 | <http://www.gnu.org/licenses/>. */ | |
1f414ac4 | 23 | |
5abc1f74 BK |
24 | #include "fixlib.h" |
25 | ||
401be4b6 | 26 | #include <fnmatch.h> |
ad643a75 | 27 | #include <sys/stat.h> |
8ba8f7e5 | 28 | #ifndef SEPARATE_FIX_PROC |
03a9fcb8 | 29 | #include <sys/wait.h> |
8ba8f7e5 | 30 | #endif |
ad643a75 | 31 | |
1e570a6a | 32 | #if defined( HAVE_MMAP_FILE ) |
99d525c9 PDM |
33 | #include <sys/mman.h> |
34 | #define BAD_ADDR ((void*)-1) | |
35 | #endif | |
1f414ac4 | 36 | |
283da1d3 | 37 | #ifndef SEPARATE_FIX_PROC |
0083c904 | 38 | #include "server.h" |
62a99405 | 39 | #endif |
0083c904 | 40 | |
5abc1f74 BK |
41 | /* The contents of this string are not very important. It is mostly |
42 | just used as part of the "I am alive and working" test. */ | |
0083c904 | 43 | |
5abc1f74 | 44 | static const char program_id[] = "fixincl version 1.1"; |
0083c904 | 45 | |
e02ecf39 BK |
46 | /* This format will be used at the start of every generated file */ |
47 | ||
48 | static const char z_std_preamble[] = | |
49 | "/* DO NOT EDIT THIS FILE.\n\n\ | |
50 | It has been auto-edited by fixincludes from:\n\n\ | |
51 | \t\"%s/%s\"\n\n\ | |
52 | This had to be done to correct non-standard usages in the\n\ | |
53 | original, manufacturer supplied header file. */\n\n"; | |
54 | ||
7d9ccd90 | 55 | int find_base_len = 0; |
d7eb5a45 | 56 | int have_tty = 0; |
b35926b9 | 57 | |
1f414ac4 BK |
58 | pid_t process_chain_head = (pid_t) -1; |
59 | ||
5abc1f74 BK |
60 | char* pz_curr_file; /* name of the current file under test/fix */ |
61 | char* pz_curr_data; /* original contents of that file */ | |
62a99405 BK |
62 | char* pz_temp_file; /* for DOS, a place to stash the temporary |
63 | fixed data between system(3) calls */ | |
5abc1f74 BK |
64 | t_bool curr_data_mapped; |
65 | int data_map_fd; | |
66 | size_t data_map_size; | |
67 | size_t ttl_data_size = 0; | |
e02ecf39 | 68 | |
5abc1f74 BK |
69 | #ifdef DO_STATS |
70 | int process_ct = 0; | |
71 | int apply_ct = 0; | |
72 | int fixed_ct = 0; | |
73 | int altered_ct = 0; | |
74 | #endif /* DO_STATS */ | |
75 | ||
1f414ac4 BK |
76 | const char incl_quote_pat[] = "^[ \t]*#[ \t]*include[ \t]*\"[^/]"; |
77 | regex_t incl_quote_re; | |
78 | ||
716028e4 TK |
79 | #ifndef SEPARATE_FIX_PROC |
80 | tSCC z_fork_err[] = "Error %d (%s) starting filter process for %s\n"; | |
81 | #endif | |
82 | ||
f4dbf936 NN |
83 | static void do_version (void) ATTRIBUTE_NORETURN; |
84 | char *load_file (const char *); | |
85 | void run_compiles (void); | |
86 | void initialize (int argc, char** argv); | |
87 | void process (void); | |
5abc1f74 BK |
88 | |
89 | /* External Source Code */ | |
0083c904 BK |
90 | |
91 | #include "fixincl.x" | |
92 | ||
1f414ac4 BK |
93 | /* * * * * * * * * * * * * * * * * * * |
94 | * | |
95 | * MAIN ROUTINE | |
96 | */ | |
f4dbf936 | 97 | extern int main (int, char **); |
0083c904 | 98 | int |
f4dbf936 | 99 | main (int argc, char** argv) |
0083c904 | 100 | { |
5abc1f74 | 101 | char *file_name_buf; |
0083c904 | 102 | |
35dfe415 | 103 | initialize ( argc, argv ); |
d1c6a037 | 104 | |
d7eb5a45 ZW |
105 | have_tty = isatty (fileno (stderr)); |
106 | ||
5abc1f74 BK |
107 | /* Before anything else, ensure we can allocate our file name buffer. */ |
108 | file_name_buf = load_file_data (stdin); | |
109 | ||
110 | /* Because of the way server shells work, you have to keep stdin, out | |
111 | and err open so that the proper input file does not get closed | |
112 | by accident */ | |
113 | ||
114 | freopen ("/dev/null", "r", stdin); | |
115 | ||
116 | if (file_name_buf == (char *) NULL) | |
117 | { | |
118 | fputs ("No file names listed for fixing\n", stderr); | |
119 | exit (EXIT_FAILURE); | |
120 | } | |
121 | ||
d1c6a037 BK |
122 | for (;;) |
123 | { | |
5abc1f74 | 124 | char* pz_end; |
d1c6a037 | 125 | |
5abc1f74 | 126 | /* skip to start of name, past any "./" prefixes */ |
d1c6a037 | 127 | |
5abc1f74 BK |
128 | while (ISSPACE (*file_name_buf)) file_name_buf++; |
129 | while ((file_name_buf[0] == '.') && (file_name_buf[1] == '/')) | |
130 | file_name_buf += 2; | |
d1c6a037 | 131 | |
5abc1f74 BK |
132 | /* Check for end of list */ |
133 | ||
134 | if (*file_name_buf == NUL) | |
135 | break; | |
136 | ||
137 | /* Set global file name pointer and find end of name */ | |
138 | ||
139 | pz_curr_file = file_name_buf; | |
140 | pz_end = strchr( pz_curr_file, '\n' ); | |
141 | if (pz_end == (char*)NULL) | |
142 | pz_end = file_name_buf = pz_curr_file + strlen (pz_curr_file); | |
143 | else | |
144 | file_name_buf = pz_end + 1; | |
145 | ||
146 | while ((pz_end > pz_curr_file) && ISSPACE( pz_end[-1])) pz_end--; | |
147 | ||
148 | /* IF no name is found (blank line) or comment marker, skip line */ | |
149 | ||
150 | if ((pz_curr_file == pz_end) || (*pz_curr_file == '#')) | |
151 | continue; | |
152 | *pz_end = NUL; | |
d1c6a037 | 153 | |
5abc1f74 | 154 | process (); |
5abc1f74 | 155 | } /* for (;;) */ |
d1c6a037 | 156 | |
5abc1f74 | 157 | #ifdef DO_STATS |
b35926b9 | 158 | if (VLEVEL( VERB_PROGRESS )) { |
5abc1f74 BK |
159 | tSCC zFmt[] = |
160 | "\ | |
161 | Processed %5d files containing %d bytes \n\ | |
162 | Applying %5d fixes to %d files\n\ | |
163 | Altering %5d of them\n"; | |
164 | ||
165 | fprintf (stderr, zFmt, process_ct, ttl_data_size, apply_ct, | |
166 | fixed_ct, altered_ct); | |
167 | } | |
168 | #endif /* DO_STATS */ | |
62a99405 | 169 | |
283da1d3 | 170 | # ifdef SEPARATE_FIX_PROC |
62a99405 BK |
171 | unlink( pz_temp_file ); |
172 | # endif | |
15fe1a7e | 173 | exit (EXIT_SUCCESS); |
d1c6a037 BK |
174 | } |
175 | ||
176 | ||
6864a6c6 | 177 | static void |
f4dbf936 | 178 | do_version (void) |
5abc1f74 BK |
179 | { |
180 | static const char zFmt[] = "echo '%s'"; | |
181 | char zBuf[ 1024 ]; | |
182 | ||
183 | /* The 'version' option is really used to test that: | |
184 | 1. The program loads correctly (no missing libraries) | |
35dfe415 BK |
185 | 2. that we can compile all the regular expressions. |
186 | 3. we can correctly run our server shell process | |
5abc1f74 BK |
187 | */ |
188 | run_compiles (); | |
189 | sprintf (zBuf, zFmt, program_id); | |
283da1d3 | 190 | #ifndef SEPARATE_FIX_PROC |
6b151aa7 | 191 | puts (zBuf + 5); |
5abc1f74 | 192 | exit (strcmp (run_shell (zBuf), program_id)); |
62a99405 | 193 | #else |
716028e4 | 194 | exit (system_with_shell (zBuf)); |
62a99405 | 195 | #endif |
5abc1f74 BK |
196 | } |
197 | ||
d1c6a037 BK |
198 | /* * * * * * * * * * * * */ |
199 | ||
200 | void | |
f4dbf936 | 201 | initialize ( int argc, char** argv ) |
d1c6a037 | 202 | { |
878a5794 BK |
203 | xmalloc_set_program_name (argv[0]); |
204 | ||
35dfe415 BK |
205 | switch (argc) |
206 | { | |
207 | case 1: | |
208 | break; | |
209 | ||
210 | case 2: | |
211 | if (strcmp (argv[1], "-v") == 0) | |
212 | do_version (); | |
213 | if (freopen (argv[1], "r", stdin) == (FILE*)NULL) | |
214 | { | |
215 | fprintf (stderr, "Error %d (%s) reopening %s as stdin\n", | |
216 | errno, xstrerror (errno), argv[1] ); | |
217 | exit (EXIT_FAILURE); | |
218 | } | |
219 | break; | |
220 | ||
221 | default: | |
222 | fputs ("fixincl ERROR: too many command line arguments\n", stderr); | |
223 | exit (EXIT_FAILURE); | |
224 | } | |
225 | ||
798bdf70 BK |
226 | #ifdef SIGCHLD |
227 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
228 | receive the signal. A different setting is inheritable */ | |
229 | signal (SIGCHLD, SIG_DFL); | |
230 | #endif | |
231 | ||
ad643a75 | 232 | initialize_opts (); |
0083c904 | 233 | |
6864a6c6 | 234 | if (ISDIGIT ( *pz_verbose )) |
e02ecf39 BK |
235 | verbose_level = (te_verbose)atoi( pz_verbose ); |
236 | else | |
237 | switch (*pz_verbose) { | |
238 | case 's': | |
239 | case 'S': | |
240 | verbose_level = VERB_SILENT; break; | |
241 | ||
242 | case 'f': | |
243 | case 'F': | |
244 | verbose_level = VERB_FIXES; break; | |
245 | ||
246 | case 'a': | |
247 | case 'A': | |
248 | verbose_level = VERB_APPLIES; break; | |
249 | ||
7a9cdb10 | 250 | default: |
e02ecf39 BK |
251 | case 'p': |
252 | case 'P': | |
253 | verbose_level = VERB_PROGRESS; break; | |
254 | ||
255 | case 't': | |
256 | case 'T': | |
257 | verbose_level = VERB_TESTS; break; | |
258 | ||
259 | case 'e': | |
260 | case 'E': | |
261 | verbose_level = VERB_EVERYTHING; break; | |
262 | } | |
7a9cdb10 DD |
263 | if (verbose_level >= VERB_EVERYTHING) { |
264 | verbose_level = VERB_EVERYTHING; | |
265 | fputs ("fixinc verbosity: EVERYTHING\n", stderr); | |
266 | } | |
267 | while ((pz_find_base[0] == '.') && (pz_find_base[1] == '/')) | |
268 | pz_find_base += 2; | |
269 | if ((pz_find_base[0] != '.') || (pz_find_base[1] != NUL)) | |
270 | find_base_len = strlen( pz_find_base ); | |
7d9ccd90 | 271 | |
1f414ac4 BK |
272 | /* Compile all the regular expressions now. |
273 | That way, it is done only once for the whole run. | |
274 | */ | |
275 | run_compiles (); | |
0083c904 | 276 | |
283da1d3 | 277 | # ifdef SEPARATE_FIX_PROC |
62a99405 BK |
278 | /* NULL as the first argument to `tempnam' causes it to DTRT |
279 | wrt the temporary directory where the file will be created. */ | |
280 | pz_temp_file = tempnam( NULL, "fxinc" ); | |
716028e4 TK |
281 | |
282 | #if defined(__MINGW32__) | |
283 | fix_path_separators (pz_temp_file); | |
284 | #endif | |
285 | ||
62a99405 BK |
286 | # endif |
287 | ||
1f414ac4 BK |
288 | signal (SIGQUIT, SIG_IGN); |
289 | signal (SIGIOT, SIG_IGN); | |
290 | signal (SIGPIPE, SIG_IGN); | |
291 | signal (SIGALRM, SIG_IGN); | |
292 | signal (SIGTERM, SIG_IGN); | |
0083c904 | 293 | } |
0083c904 | 294 | |
1f414ac4 | 295 | /* * * * * * * * * * * * * |
5abc1f74 | 296 | |
1f414ac4 BK |
297 | load_file loads all the contents of a file into malloc-ed memory. |
298 | Its argument is the name of the file to read in; the returned | |
299 | result is the NUL terminated contents of the file. The file | |
300 | is presumed to be an ASCII text file containing no NULs. */ | |
0083c904 | 301 | char * |
f4dbf936 | 302 | load_file ( const char* fname ) |
0083c904 | 303 | { |
5abc1f74 BK |
304 | struct stat stbf; |
305 | char* res; | |
0083c904 | 306 | |
5abc1f74 | 307 | if (stat (fname, &stbf) != 0) |
0083c904 | 308 | { |
b35926b9 BK |
309 | if (NOT_SILENT) |
310 | fprintf (stderr, "error %d (%s) stat-ing %s\n", | |
f95e46b9 | 311 | errno, xstrerror (errno), fname ); |
5abc1f74 | 312 | return (char *) NULL; |
0083c904 | 313 | } |
5abc1f74 BK |
314 | if (stbf.st_size == 0) |
315 | return (char*)NULL; | |
0083c904 | 316 | |
a6efbece BK |
317 | /* Make the data map size one larger than the file size for documentation |
318 | purposes. Truth is that there will be a following NUL character if | |
319 | the file size is not a multiple of the page size. If it is a multiple, | |
320 | then this adjustment sometimes fails anyway. */ | |
5abc1f74 BK |
321 | data_map_size = stbf.st_size+1; |
322 | data_map_fd = open (fname, O_RDONLY); | |
323 | ttl_data_size += data_map_size-1; | |
0083c904 | 324 | |
5abc1f74 BK |
325 | if (data_map_fd < 0) |
326 | { | |
b35926b9 BK |
327 | if (NOT_SILENT) |
328 | fprintf (stderr, "error %d (%s) opening %s for read\n", | |
f95e46b9 | 329 | errno, xstrerror (errno), fname); |
5abc1f74 BK |
330 | return (char*)NULL; |
331 | } | |
0083c904 | 332 | |
56f02b88 | 333 | #ifdef HAVE_MMAP_FILE |
5abc1f74 | 334 | curr_data_mapped = BOOL_TRUE; |
a6efbece BK |
335 | |
336 | /* IF the file size is a multiple of the page size, | |
337 | THEN sometimes you will seg fault trying to access a trailing byte */ | |
dc46505a | 338 | if ((stbf.st_size & (getpagesize()-1)) == 0) |
a6efbece BK |
339 | res = (char*)BAD_ADDR; |
340 | else | |
341 | res = (char*)mmap ((void*)NULL, data_map_size, PROT_READ, | |
342 | MAP_PRIVATE, data_map_fd, 0); | |
5abc1f74 | 343 | if (res == (char*)BAD_ADDR) |
ca21b4a5 | 344 | #endif |
5abc1f74 | 345 | { |
ca21b4a5 | 346 | FILE* fp = fdopen (data_map_fd, "r"); |
5abc1f74 | 347 | curr_data_mapped = BOOL_FALSE; |
ca21b4a5 BK |
348 | res = load_file_data (fp); |
349 | fclose (fp); | |
5abc1f74 | 350 | } |
0083c904 | 351 | |
5abc1f74 | 352 | return res; |
0083c904 BK |
353 | } |
354 | ||
6864a6c6 | 355 | static int |
f4dbf936 | 356 | machine_matches( tFixDesc* p_fixd ) |
401be4b6 BK |
357 | { |
358 | char const ** papz_machs = p_fixd->papz_machs; | |
359 | int have_match = BOOL_FALSE; | |
1f414ac4 | 360 | |
62a99405 BK |
361 | for (;;) |
362 | { | |
401be4b6 BK |
363 | char const * pz_mpat = *(papz_machs++); |
364 | if (pz_mpat == NULL) | |
62a99405 | 365 | break; |
401be4b6 BK |
366 | if (fnmatch(pz_mpat, pz_machine, 0) == 0) |
367 | { | |
368 | have_match = BOOL_TRUE; | |
369 | break; | |
370 | } | |
62a99405 BK |
371 | } |
372 | ||
2f82a97b | 373 | /* Check for sense inversion then set the "skip test" flag, if needed */ |
401be4b6 | 374 | if (p_fixd->fd_flags & FD_MACH_IFNOT) |
2f82a97b BK |
375 | have_match = ! have_match; |
376 | ||
377 | if (! have_match) | |
378 | p_fixd->fd_flags |= FD_SKIP_TEST; | |
379 | ||
401be4b6 | 380 | return have_match; |
62a99405 BK |
381 | } |
382 | ||
383 | /* * * * * * * * * * * * * | |
401be4b6 BK |
384 | * |
385 | * run_compiles run all the regexp compiles for all the fixes once. | |
386 | */ | |
62a99405 | 387 | void |
f4dbf936 | 388 | run_compiles (void) |
62a99405 BK |
389 | { |
390 | tFixDesc *p_fixd = fixDescList; | |
391 | int fix_ct = FIX_COUNT; | |
03a9fcb8 | 392 | regex_t *p_re = XCNEWVEC (regex_t, REGEX_COUNT); |
62a99405 BK |
393 | |
394 | /* Make sure compile_re does not stumble across invalid data */ | |
395 | ||
c68b0a84 | 396 | memset (&incl_quote_re, '\0', sizeof (regex_t)); |
62a99405 BK |
397 | |
398 | compile_re (incl_quote_pat, &incl_quote_re, 1, | |
399 | "quoted include", "run_compiles"); | |
400 | ||
401 | /* Allow machine name tests to be ignored (testing, mainly) */ | |
402 | ||
403 | if (pz_machine && ((*pz_machine == '\0') || (*pz_machine == '*'))) | |
404 | pz_machine = (char*)NULL; | |
405 | ||
406 | /* FOR every fixup, ... */ | |
407 | do | |
408 | { | |
7e416541 BK |
409 | tTestDesc *p_test; |
410 | int test_ct; | |
411 | ||
412 | if (fixinc_mode && (p_fixd->fd_flags & FD_REPLACEMENT)) | |
413 | { | |
414 | p_fixd->fd_flags |= FD_SKIP_TEST; | |
415 | continue; | |
416 | } | |
417 | ||
418 | p_test = p_fixd->p_test_desc; | |
419 | test_ct = p_fixd->test_ct; | |
62a99405 BK |
420 | |
421 | /* IF the machine type pointer is not NULL (we are not in test mode) | |
422 | AND this test is for or not done on particular machines | |
423 | THEN ... */ | |
424 | ||
425 | if ( (pz_machine != NULL) | |
426 | && (p_fixd->papz_machs != (const char**) NULL) | |
427 | && ! machine_matches (p_fixd) ) | |
428 | continue; | |
0083c904 | 429 | |
1f414ac4 BK |
430 | /* FOR every test for the fixup, ... */ |
431 | ||
432 | while (--test_ct >= 0) | |
0083c904 | 433 | { |
1f414ac4 | 434 | switch (p_test->type) |
0083c904 BK |
435 | { |
436 | case TT_EGREP: | |
437 | case TT_NEGREP: | |
1f414ac4 | 438 | p_test->p_test_regex = p_re++; |
35dfe415 BK |
439 | compile_re (p_test->pz_test_text, p_test->p_test_regex, 0, |
440 | "select test", p_fixd->fix_name); | |
3af556f7 | 441 | default: break; |
35dfe415 | 442 | } |
1f414ac4 | 443 | p_test++; |
0083c904 BK |
444 | } |
445 | } | |
1f414ac4 | 446 | while (p_fixd++, --fix_ct > 0); |
0083c904 BK |
447 | } |
448 | ||
449 | ||
1f414ac4 | 450 | /* * * * * * * * * * * * * |
5abc1f74 | 451 | |
1f414ac4 BK |
452 | create_file Create the output modified file. |
453 | Input: the name of the file to create | |
454 | Returns: a file pointer to the new, open file */ | |
455 | ||
063174ee BK |
456 | #if defined(S_IRUSR) && defined(S_IWUSR) && \ |
457 | defined(S_IRGRP) && defined(S_IROTH) | |
458 | ||
459 | # define S_IRALL (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) | |
460 | #else | |
461 | # define S_IRALL 0644 | |
462 | #endif | |
463 | ||
464 | #if defined(S_IRWXU) && defined(S_IRGRP) && defined(S_IXGRP) && \ | |
465 | defined(S_IROTH) && defined(S_IXOTH) | |
466 | ||
467 | # define S_DIRALL (S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) | |
468 | #else | |
469 | # define S_DIRALL 0755 | |
470 | #endif | |
471 | ||
1f414ac4 | 472 | |
6864a6c6 | 473 | static FILE * |
f4dbf936 | 474 | create_file (void) |
0083c904 BK |
475 | { |
476 | int fd; | |
477 | FILE *pf; | |
478 | char fname[MAXPATHLEN]; | |
479 | ||
5abc1f74 | 480 | sprintf (fname, "%s/%s", pz_dest_dir, pz_curr_file + find_base_len); |
0083c904 | 481 | |
1f414ac4 | 482 | fd = open (fname, O_WRONLY | O_CREAT | O_TRUNC, S_IRALL); |
0083c904 | 483 | |
1f414ac4 | 484 | /* We may need to create the directories needed... */ |
0083c904 BK |
485 | if ((fd < 0) && (errno == ENOENT)) |
486 | { | |
1f414ac4 | 487 | char *pz_dir = strchr (fname + 1, '/'); |
0083c904 BK |
488 | struct stat stbf; |
489 | ||
1f414ac4 | 490 | while (pz_dir != (char *) NULL) |
0083c904 | 491 | { |
1f414ac4 | 492 | *pz_dir = NUL; |
0083c904 BK |
493 | if (stat (fname, &stbf) < 0) |
494 | { | |
f4a8f279 AL |
495 | #ifdef _WIN32 |
496 | mkdir (fname); | |
497 | #else | |
063174ee | 498 | mkdir (fname, S_IFDIR | S_DIRALL); |
f4a8f279 | 499 | #endif |
0083c904 BK |
500 | } |
501 | ||
1f414ac4 BK |
502 | *pz_dir = '/'; |
503 | pz_dir = strchr (pz_dir + 1, '/'); | |
0083c904 | 504 | } |
1f414ac4 BK |
505 | |
506 | /* Now, lets try the open again... */ | |
507 | fd = open (fname, O_WRONLY | O_CREAT | O_TRUNC, S_IRALL); | |
0083c904 BK |
508 | } |
509 | if (fd < 0) | |
510 | { | |
511 | fprintf (stderr, "Error %d (%s) creating %s\n", | |
f95e46b9 | 512 | errno, xstrerror (errno), fname); |
0083c904 BK |
513 | exit (EXIT_FAILURE); |
514 | } | |
b35926b9 BK |
515 | if (NOT_SILENT) |
516 | fprintf (stderr, "Fixed: %s\n", pz_curr_file); | |
0083c904 BK |
517 | pf = fdopen (fd, "w"); |
518 | ||
e02ecf39 BK |
519 | /* |
520 | * IF pz_machine is NULL, then we are in some sort of test mode. | |
521 | * Do not insert the current directory name. Use a constant string. | |
522 | */ | |
523 | fprintf (pf, z_std_preamble, | |
524 | (pz_machine == NULL) | |
525 | ? "fixinc/tests/inc" | |
526 | : pz_input_dir, | |
527 | pz_curr_file); | |
1f414ac4 | 528 | |
0083c904 BK |
529 | return pf; |
530 | } | |
531 | ||
0083c904 | 532 | |
1f414ac4 | 533 | /* * * * * * * * * * * * * |
0083c904 | 534 | |
1f414ac4 BK |
535 | test_test make sure a shell-style test expression passes. |
536 | Input: a pointer to the descriptor of the test to run and | |
537 | the name of the file that we might want to fix | |
5abc1f74 | 538 | Result: APPLY_FIX or SKIP_FIX, depending on the result of the |
1f414ac4 | 539 | shell script we run. */ |
283da1d3 | 540 | #ifndef SEPARATE_FIX_PROC |
6864a6c6 | 541 | static int |
f4dbf936 | 542 | test_test (tTestDesc* p_test, char* pz_test_file) |
1f414ac4 | 543 | { |
94db2f71 BK |
544 | tSCC cmd_fmt[] = |
545 | "file=%s\n\ | |
546 | if ( test %s ) > /dev/null 2>&1\n\ | |
547 | then echo TRUE\n\ | |
548 | else echo FALSE\n\ | |
549 | fi"; | |
550 | ||
1f414ac4 | 551 | char *pz_res; |
e9099386 | 552 | int res; |
1f414ac4 BK |
553 | |
554 | static char cmd_buf[4096]; | |
1f414ac4 | 555 | |
5abc1f74 | 556 | sprintf (cmd_buf, cmd_fmt, pz_test_file, p_test->pz_test_text); |
1f414ac4 | 557 | pz_res = run_shell (cmd_buf); |
e9099386 BK |
558 | |
559 | switch (*pz_res) { | |
560 | case 'T': | |
5abc1f74 | 561 | res = APPLY_FIX; |
e9099386 BK |
562 | break; |
563 | ||
564 | case 'F': | |
565 | res = SKIP_FIX; | |
566 | break; | |
567 | ||
568 | default: | |
569 | fprintf (stderr, "Script yielded bogus result of `%s':\n%s\n\n", | |
570 | pz_res, cmd_buf ); | |
9cdfc8e7 | 571 | res = SKIP_FIX; |
e9099386 BK |
572 | } |
573 | ||
1f414ac4 | 574 | free ((void *) pz_res); |
0083c904 BK |
575 | return res; |
576 | } | |
716028e4 TK |
577 | #elif defined(__MINGW32__) || defined(__DJGPP__) |
578 | static int | |
579 | test_test (tTestDesc* p_test, char* pz_test_file) | |
580 | { | |
581 | tSCC cmd_fmt[] = | |
582 | #if defined(__DJGPP__) | |
583 | "file=%s; test %s >/dev/null 2>/dev/null"; | |
584 | #else | |
585 | "file=%s; test %s > /dev/null 2>&1"; | |
586 | #endif | |
587 | int res; | |
588 | ||
589 | char *cmd_buf = XNEWVEC (char, strlen(cmd_fmt) + strlen(pz_test_file) + strlen(p_test->pz_test_text)); | |
590 | ||
591 | sprintf (cmd_buf, cmd_fmt, pz_test_file, p_test->pz_test_text); | |
592 | res = system_with_shell (cmd_buf); | |
593 | ||
594 | free (cmd_buf); | |
595 | return res ? SKIP_FIX : APPLY_FIX; | |
596 | } | |
62a99405 BK |
597 | #else |
598 | /* | |
599 | * IF we are in MS-DOS land, then whatever shell-type test is required | |
600 | * will, by definition, fail | |
601 | */ | |
602 | #define test_test(t,tf) SKIP_FIX | |
603 | #endif | |
0083c904 | 604 | |
1f414ac4 | 605 | /* * * * * * * * * * * * * |
5abc1f74 | 606 | |
1f414ac4 BK |
607 | egrep_test make sure an egrep expression is found in the file text. |
608 | Input: a pointer to the descriptor of the test to run and | |
609 | the pointer to the contents of the file under suspicion | |
5abc1f74 | 610 | Result: APPLY_FIX if the pattern is found, SKIP_FIX otherwise |
1f414ac4 | 611 | |
5abc1f74 | 612 | The caller may choose to reverse meaning if the sense of the test |
1f414ac4 BK |
613 | is inverted. */ |
614 | ||
6864a6c6 | 615 | static int |
f4dbf936 | 616 | egrep_test (char* pz_data, tTestDesc* p_test) |
0083c904 | 617 | { |
5abc1f74 | 618 | #ifdef DEBUG |
1f414ac4 BK |
619 | if (p_test->p_test_regex == 0) |
620 | fprintf (stderr, "fixincl ERROR RE not compiled: `%s'\n", | |
621 | p_test->pz_test_text); | |
0083c904 | 622 | #endif |
ab747408 | 623 | if (xregexec (p_test->p_test_regex, pz_data, 0, 0, 0) == 0) |
5abc1f74 BK |
624 | return APPLY_FIX; |
625 | return SKIP_FIX; | |
0083c904 BK |
626 | } |
627 | ||
11c3a68e BK |
628 | /* * * * * * * * * * * * * |
629 | ||
630 | cksum_test check the sum of the candidate file | |
631 | Input: the original file contents and the file name | |
632 | Result: APPLY_FIX if the check sum matches, SKIP_FIX otherwise | |
633 | ||
634 | The caller may choose to reverse meaning if the sense of the test | |
635 | is inverted. */ | |
636 | ||
637 | static int | |
638 | cksum_test (char * pz_data, tTestDesc * p_test, char * fname) | |
639 | { | |
640 | unsigned int cksum; | |
641 | ||
642 | /* | |
643 | * Testing is off in normal operation mode. | |
644 | * So, in testing mode, APPLY_FIX is always returned. | |
645 | */ | |
646 | if (fixinc_mode != TESTING_OFF) | |
647 | return APPLY_FIX; | |
648 | ||
649 | { | |
650 | char * fnm = strrchr(fname, '/'); | |
651 | if (fnm != NULL) | |
652 | fname = fnm + 1; | |
653 | ||
654 | errno = 0; | |
655 | cksum = (unsigned int)strtoul(p_test->pz_test_text, &fnm, 10); | |
656 | if (errno != 0) | |
657 | return SKIP_FIX; | |
658 | ||
659 | if (! ISSPACE(*fnm++)) | |
660 | return SKIP_FIX; | |
661 | while (ISSPACE(*fnm)) fnm++; | |
662 | ||
663 | if (! ISDIGIT(*fnm++)) | |
664 | return SKIP_FIX; | |
665 | while (ISDIGIT(*fnm)) fnm++; | |
666 | ||
667 | if (! ISSPACE(*fnm++)) | |
668 | return SKIP_FIX; | |
669 | while (ISSPACE(*fnm)) fnm++; | |
670 | ||
671 | if (strcmp(fnm, fname) != 0) | |
672 | return SKIP_FIX; | |
673 | } | |
674 | ||
675 | { | |
676 | unsigned int sum = 0; | |
677 | while (*pz_data != NUL) { | |
678 | sum = (sum >> 1) + ((sum & 1) << 15) + (unsigned)(*pz_data++); | |
679 | sum &= 0xFFFF; | |
680 | } | |
681 | ||
682 | return (sum == cksum) ? APPLY_FIX : SKIP_FIX; | |
683 | } | |
684 | } | |
0083c904 | 685 | |
94db2f71 BK |
686 | /* * * * * * * * * * * * * |
687 | ||
688 | quoted_file_exists Make sure that a file exists before we emit | |
689 | the file name. If we emit the name, our invoking shell will try | |
690 | to copy a non-existing file into the destination directory. */ | |
691 | ||
6864a6c6 | 692 | static int |
f4dbf936 NN |
693 | quoted_file_exists (const char* pz_src_path, |
694 | const char* pz_file_path, | |
695 | const char* pz_file) | |
94db2f71 BK |
696 | { |
697 | char z[ MAXPATHLEN ]; | |
698 | char* pz; | |
699 | sprintf (z, "%s/%s/", pz_src_path, pz_file_path); | |
700 | pz = z + strlen ( z ); | |
701 | ||
702 | for (;;) { | |
703 | char ch = *pz_file++; | |
5abc1f74 | 704 | if (! ISGRAPH( ch )) |
94db2f71 BK |
705 | return 0; |
706 | if (ch == '"') | |
707 | break; | |
708 | *pz++ = ch; | |
709 | } | |
710 | *pz = '\0'; | |
711 | { | |
712 | struct stat s; | |
713 | if (stat (z, &s) != 0) | |
714 | return 0; | |
715 | return S_ISREG( s.st_mode ); | |
716 | } | |
717 | } | |
718 | ||
719 | ||
1f414ac4 BK |
720 | /* * * * * * * * * * * * * |
721 | * | |
722 | extract_quoted_files | |
5abc1f74 | 723 | |
1f414ac4 BK |
724 | The syntax, `#include "file.h"' specifies that the compiler is to |
725 | search the local directory of the current file before the include | |
726 | list. Consequently, if we have modified a header and stored it in | |
727 | another directory, any files that are included by that modified | |
728 | file in that fashion must also be copied into this new directory. | |
729 | This routine finds those flavors of #include and for each one found | |
730 | emits a triple of: | |
5abc1f74 | 731 | |
1f414ac4 BK |
732 | 1. source directory of the original file |
733 | 2. the relative path file name of the #includ-ed file | |
734 | 3. the full destination path for this file | |
735 | ||
736 | Input: the text of the file, the file name and a pointer to the | |
737 | match list where the match information was stored. | |
738 | Result: internally nothing. The results are written to stdout | |
739 | for interpretation by the invoking shell */ | |
0083c904 | 740 | |
94db2f71 | 741 | |
6864a6c6 | 742 | static void |
f4dbf936 NN |
743 | extract_quoted_files (char* pz_data, |
744 | const char* pz_fixed_file, | |
745 | regmatch_t* p_re_match) | |
0083c904 | 746 | { |
5abc1f74 | 747 | char *pz_dir_end = strrchr (pz_fixed_file, '/'); |
1f414ac4 | 748 | char *pz_incl_quot = pz_data; |
0083c904 | 749 | |
b35926b9 BK |
750 | if (VLEVEL( VERB_APPLIES )) |
751 | fprintf (stderr, "Quoted includes in %s\n", pz_fixed_file); | |
0083c904 | 752 | |
5abc1f74 | 753 | /* Set "pz_fixed_file" to point to the containing subdirectory of the source |
94db2f71 | 754 | If there is none, then it is in our current directory, ".". */ |
1f414ac4 BK |
755 | |
756 | if (pz_dir_end == (char *) NULL) | |
5abc1f74 | 757 | pz_fixed_file = "."; |
0083c904 | 758 | else |
1f414ac4 | 759 | *pz_dir_end = '\0'; |
0083c904 BK |
760 | |
761 | for (;;) | |
762 | { | |
1f414ac4 BK |
763 | pz_incl_quot += p_re_match->rm_so; |
764 | ||
765 | /* Skip forward to the included file name */ | |
f6bbde28 | 766 | while (*pz_incl_quot != '"') |
1f414ac4 | 767 | pz_incl_quot++; |
1f414ac4 | 768 | |
5abc1f74 | 769 | if (quoted_file_exists (pz_src_dir, pz_fixed_file, pz_incl_quot)) |
94db2f71 BK |
770 | { |
771 | /* Print the source directory and the subdirectory | |
772 | of the file in question. */ | |
5abc1f74 | 773 | printf ("%s %s/", pz_src_dir, pz_fixed_file); |
94db2f71 BK |
774 | pz_dir_end = pz_incl_quot; |
775 | ||
776 | /* Append to the directory the relative path of the desired file */ | |
777 | while (*pz_incl_quot != '"') | |
778 | putc (*pz_incl_quot++, stdout); | |
779 | ||
780 | /* Now print the destination directory appended with the | |
781 | relative path of the desired file */ | |
5abc1f74 | 782 | printf (" %s/%s/", pz_dest_dir, pz_fixed_file); |
94db2f71 BK |
783 | while (*pz_dir_end != '"') |
784 | putc (*pz_dir_end++, stdout); | |
785 | ||
786 | /* End of entry */ | |
787 | putc ('\n', stdout); | |
788 | } | |
0083c904 | 789 | |
1f414ac4 | 790 | /* Find the next entry */ |
ab747408 | 791 | if (xregexec (&incl_quote_re, pz_incl_quot, 1, p_re_match, 0) != 0) |
0083c904 BK |
792 | break; |
793 | } | |
794 | } | |
795 | ||
796 | ||
5abc1f74 BK |
797 | /* * * * * * * * * * * * * |
798 | ||
799 | Somebody wrote a *_fix subroutine that we must call. | |
800 | */ | |
283da1d3 | 801 | #ifndef SEPARATE_FIX_PROC |
6864a6c6 | 802 | static int |
f4dbf936 | 803 | internal_fix (int read_fd, tFixDesc* p_fixd) |
5abc1f74 BK |
804 | { |
805 | int fd[2]; | |
806 | ||
807 | if (pipe( fd ) != 0) | |
808 | { | |
809 | fprintf (stderr, "Error %d on pipe(2) call\n", errno ); | |
810 | exit (EXIT_FAILURE); | |
811 | } | |
812 | ||
813 | for (;;) | |
814 | { | |
815 | pid_t childid = fork(); | |
816 | ||
817 | switch (childid) | |
818 | { | |
819 | case -1: | |
820 | break; | |
821 | ||
822 | case 0: | |
823 | close (fd[0]); | |
824 | goto do_child_task; | |
825 | ||
826 | default: | |
827 | /* | |
828 | * Parent process | |
829 | */ | |
830 | close (read_fd); | |
831 | close (fd[1]); | |
832 | return fd[0]; | |
833 | } | |
834 | ||
835 | /* | |
836 | * Parent in error | |
837 | */ | |
f95e46b9 | 838 | fprintf (stderr, z_fork_err, errno, xstrerror (errno), |
5abc1f74 BK |
839 | p_fixd->fix_name); |
840 | { | |
841 | static int failCt = 0; | |
842 | if ((errno != EAGAIN) || (++failCt > 10)) | |
843 | exit (EXIT_FAILURE); | |
844 | sleep (1); | |
845 | } | |
846 | } do_child_task:; | |
847 | ||
848 | /* | |
849 | * Close our current stdin and stdout | |
850 | */ | |
851 | close (STDIN_FILENO); | |
852 | close (STDOUT_FILENO); | |
853 | UNLOAD_DATA(); | |
854 | ||
855 | /* | |
856 | * Make the fd passed in the stdin, and the write end of | |
857 | * the new pipe become the stdout. | |
858 | */ | |
f4a8f279 AL |
859 | dup2 (fd[1], STDOUT_FILENO); |
860 | dup2 (read_fd, STDIN_FILENO); | |
5abc1f74 | 861 | |
35dfe415 | 862 | apply_fix (p_fixd, pz_curr_file); |
5abc1f74 BK |
863 | exit (0); |
864 | } | |
283da1d3 | 865 | #endif /* !SEPARATE_FIX_PROC */ |
62a99405 BK |
866 | |
867 | ||
283da1d3 | 868 | #ifdef SEPARATE_FIX_PROC |
62a99405 | 869 | static void |
f4dbf936 NN |
870 | fix_with_system (tFixDesc* p_fixd, |
871 | tCC* pz_fix_file, | |
872 | tCC* pz_file_source, | |
873 | tCC* pz_temp_file) | |
62a99405 BK |
874 | { |
875 | char* pz_cmd; | |
876 | char* pz_scan; | |
877 | size_t argsize; | |
878 | ||
879 | if (p_fixd->fd_flags & FD_SUBROUTINE) | |
43c1b5d2 BK |
880 | { |
881 | static const char z_applyfix_prog[] = | |
11c3a68e | 882 | "/../fixincludes/applyfix" EXE_EXT; |
43c1b5d2 BK |
883 | |
884 | struct stat buf; | |
885 | argsize = 32 | |
886 | + strlen (pz_orig_dir) | |
887 | + sizeof (z_applyfix_prog) | |
888 | + strlen (pz_fix_file) | |
889 | + strlen (pz_file_source) | |
890 | + strlen (pz_temp_file); | |
891 | ||
892 | /* Allocate something sure to be big enough for our purposes */ | |
03a9fcb8 | 893 | pz_cmd = XNEWVEC (char, argsize); |
43c1b5d2 BK |
894 | strcpy (pz_cmd, pz_orig_dir); |
895 | pz_scan = pz_cmd + strlen (pz_orig_dir); | |
896 | ||
897 | strcpy (pz_scan, z_applyfix_prog); | |
898 | ||
899 | /* IF we can't find the "applyfix" executable file at the first guess, | |
11c3a68e | 900 | try one level higher up */ |
43c1b5d2 | 901 | if (stat (pz_cmd, &buf) == -1) |
11c3a68e BK |
902 | { |
903 | strcpy (pz_scan, "/.."); | |
904 | strcpy (pz_scan+3, z_applyfix_prog); | |
905 | } | |
43c1b5d2 BK |
906 | |
907 | pz_scan += strlen (pz_scan); | |
908 | ||
909 | /* | |
910 | * Now add the fix number and file names that may be needed | |
911 | */ | |
c1041240 | 912 | sprintf (pz_scan, " %ld '%s' '%s' '%s'", (long) (p_fixd - fixDescList), |
11c3a68e | 913 | pz_fix_file, pz_file_source, pz_temp_file); |
43c1b5d2 | 914 | } |
62a99405 BK |
915 | else /* NOT an "internal" fix: */ |
916 | { | |
917 | size_t parg_size; | |
716028e4 | 918 | #if defined(__MSDOS__) && !defined(__DJGPP__) |
62a99405 | 919 | /* Don't use the "src > dstX; rm -f dst; mv -f dstX dst" trick: |
283da1d3 DB |
920 | dst is a temporary file anyway, so we know there's no other |
921 | file by that name; and DOS's system(3) doesn't mind to | |
dc13bad7 EZ |
922 | clobber existing file in redirection. Besides, with DOS 8+3 |
923 | limited file namespace, we can easily lose if dst already has | |
924 | an extension that is 3 or more characters long. | |
283da1d3 DB |
925 | |
926 | I do not think the 8+3 issue is relevant because all the files | |
927 | we operate on are named "*.h", making 8+2 adequate. Anyway, | |
928 | the following bizarre use of 'cat' only works on DOS boxes. | |
929 | It causes the file to be dropped into a temporary file for | |
dc13bad7 | 930 | 'cat' to read (pipes do not work on DOS). */ |
ecb0d20e | 931 | tSCC z_cmd_fmt[] = " '%s' | cat > '%s'"; |
283da1d3 DB |
932 | #else |
933 | /* Don't use positional formatting arguments because some lame-o | |
934 | implementations cannot cope :-(. */ | |
935 | tSCC z_cmd_fmt[] = " %s > %sX ; rm -f %s; mv -f %sX %s"; | |
936 | #endif | |
716028e4 TK |
937 | tSCC z_subshell_start[] = "( "; |
938 | tSCC z_subshell_end[] = " ) < "; | |
62a99405 BK |
939 | tCC** ppArgs = p_fixd->patch_args; |
940 | ||
941 | argsize = sizeof( z_cmd_fmt ) + strlen( pz_temp_file ) | |
942 | + strlen( pz_file_source ); | |
943 | parg_size = argsize; | |
944 | ||
716028e4 TK |
945 | if (p_fixd->fd_flags & FD_SHELL_SCRIPT) |
946 | { | |
947 | argsize += strlen( z_subshell_start ) + strlen ( z_subshell_end ); | |
948 | } | |
62a99405 BK |
949 | |
950 | /* | |
951 | * Compute the size of the command line. Add lotsa extra space | |
952 | * because some of the args to sed use lotsa single quotes. | |
953 | * (This requires three extra bytes per quote. Here we allow | |
954 | * for up to 8 single quotes for each argument, including the | |
955 | * command name "sed" itself. Nobody will *ever* need more. :) | |
956 | */ | |
957 | for (;;) | |
958 | { | |
959 | tCC* p_arg = *(ppArgs++); | |
960 | if (p_arg == NULL) | |
961 | break; | |
962 | argsize += 24 + strlen( p_arg ); | |
963 | } | |
964 | ||
965 | /* Estimated buffer size we will need. */ | |
03a9fcb8 | 966 | pz_scan = pz_cmd = XNEWVEC (char, argsize); |
62a99405 BK |
967 | /* How much of it do we allot to the program name and its |
968 | arguments. */ | |
969 | parg_size = argsize - parg_size; | |
970 | ||
971 | ppArgs = p_fixd->patch_args; | |
972 | ||
716028e4 TK |
973 | /* |
974 | * If it's shell script, enclose it in parentheses and skip "sh -c". | |
975 | */ | |
976 | if (p_fixd->fd_flags & FD_SHELL_SCRIPT) | |
977 | { | |
978 | strcpy (pz_scan, z_subshell_start); | |
979 | pz_scan += strlen (z_subshell_start); | |
980 | ppArgs += 2; | |
981 | } | |
982 | ||
62a99405 BK |
983 | /* |
984 | * Copy the program name, unquoted | |
985 | */ | |
986 | { | |
987 | tCC* pArg = *(ppArgs++); | |
988 | for (;;) | |
989 | { | |
990 | char ch = *(pArg++); | |
991 | if (ch == NUL) | |
992 | break; | |
993 | *(pz_scan++) = ch; | |
994 | } | |
995 | } | |
996 | ||
997 | /* | |
998 | * Copy the program arguments, quoted | |
999 | */ | |
1000 | for (;;) | |
1001 | { | |
1002 | tCC* pArg = *(ppArgs++); | |
11c3a68e | 1003 | char* pz_scan_save; |
62a99405 BK |
1004 | if (pArg == NULL) |
1005 | break; | |
1006 | *(pz_scan++) = ' '; | |
1007 | pz_scan = make_raw_shell_str( pz_scan_save = pz_scan, pArg, | |
11c3a68e BK |
1008 | parg_size - (pz_scan - pz_cmd) ); |
1009 | /* | |
1010 | * Make sure we don't overflow the buffer due to sloppy | |
1011 | * size estimation. | |
1012 | */ | |
1013 | while (pz_scan == (char*)NULL) | |
1014 | { | |
1015 | size_t already_filled = pz_scan_save - pz_cmd; | |
1016 | pz_cmd = xrealloc (pz_cmd, argsize += 100); | |
1017 | pz_scan_save = pz_scan = pz_cmd + already_filled; | |
1018 | parg_size += 100; | |
1019 | pz_scan = make_raw_shell_str( pz_scan, pArg, | |
1020 | parg_size - (pz_scan - pz_cmd) ); | |
1021 | } | |
62a99405 BK |
1022 | } |
1023 | ||
716028e4 TK |
1024 | /* |
1025 | * Close parenthesis if it's shell script. | |
1026 | */ | |
1027 | if (p_fixd->fd_flags & FD_SHELL_SCRIPT) | |
1028 | { | |
1029 | strcpy (pz_scan, z_subshell_end); | |
1030 | pz_scan += strlen (z_subshell_end); | |
1031 | } | |
1032 | ||
62a99405 BK |
1033 | /* |
1034 | * add the file machinations. | |
1035 | */ | |
716028e4 | 1036 | #if defined(__MSDOS__) && !defined(__DJGPP__) |
283da1d3 DB |
1037 | sprintf (pz_scan, z_cmd_fmt, pz_file_source, pz_temp_file ); |
1038 | #else | |
1039 | sprintf (pz_scan, z_cmd_fmt, pz_file_source, pz_temp_file, | |
1040 | pz_temp_file, pz_temp_file, pz_temp_file); | |
1041 | #endif | |
62a99405 | 1042 | } |
716028e4 TK |
1043 | system_with_shell (pz_cmd); |
1044 | free (pz_cmd); | |
62a99405 | 1045 | } |
bb786201 BK |
1046 | |
1047 | /* * * * * * * * * * * * * | |
1048 | ||
1049 | This loop should only cycle for 1/2 of one loop. | |
1050 | "chain_open" starts a process that uses "read_fd" as | |
1051 | its stdin and returns the new fd this process will use | |
1052 | for stdout. */ | |
1053 | ||
283da1d3 | 1054 | #else /* is *NOT* SEPARATE_FIX_PROC */ |
6864a6c6 | 1055 | static int |
f4dbf936 | 1056 | start_fixer (int read_fd, tFixDesc* p_fixd, char* pz_fix_file) |
bb786201 | 1057 | { |
bb786201 BK |
1058 | tCC* pz_cmd_save; |
1059 | char* pz_cmd; | |
1060 | ||
5abc1f74 BK |
1061 | if ((p_fixd->fd_flags & FD_SUBROUTINE) != 0) |
1062 | return internal_fix (read_fd, p_fixd); | |
1063 | ||
bb786201 | 1064 | if ((p_fixd->fd_flags & FD_SHELL_SCRIPT) == 0) |
9cdfc8e7 JM |
1065 | { |
1066 | pz_cmd = NULL; | |
1067 | pz_cmd_save = NULL; | |
1068 | } | |
bb786201 BK |
1069 | else |
1070 | { | |
1071 | tSCC z_cmd_fmt[] = "file='%s'\n%s"; | |
03a9fcb8 | 1072 | pz_cmd = XNEWVEC (char, strlen (p_fixd->patch_args[2]) |
11c3a68e | 1073 | + sizeof (z_cmd_fmt) + strlen (pz_fix_file)); |
5abc1f74 | 1074 | sprintf (pz_cmd, z_cmd_fmt, pz_fix_file, p_fixd->patch_args[2]); |
bb786201 BK |
1075 | pz_cmd_save = p_fixd->patch_args[2]; |
1076 | p_fixd->patch_args[2] = pz_cmd; | |
1077 | } | |
1078 | ||
b35926b9 BK |
1079 | /* Start a fix process, handing off the previous read fd for its |
1080 | stdin and getting a new fd that reads from the fix process' stdout. | |
1081 | We normally will not loop, but we will up to 10 times if we keep | |
1082 | getting "EAGAIN" errors. | |
1083 | ||
1084 | */ | |
bb786201 BK |
1085 | for (;;) |
1086 | { | |
1087 | static int failCt = 0; | |
1088 | int fd; | |
1089 | ||
1090 | fd = chain_open (read_fd, | |
2629a114 | 1091 | (tCC **) p_fixd->patch_args, |
bb786201 BK |
1092 | (process_chain_head == -1) |
1093 | ? &process_chain_head : (pid_t *) NULL); | |
1094 | ||
1095 | if (fd != -1) | |
1096 | { | |
1097 | read_fd = fd; | |
1098 | break; | |
1099 | } | |
1100 | ||
f95e46b9 | 1101 | fprintf (stderr, z_fork_err, errno, xstrerror (errno), |
bb786201 BK |
1102 | p_fixd->fix_name); |
1103 | ||
1104 | if ((errno != EAGAIN) || (++failCt > 10)) | |
1105 | exit (EXIT_FAILURE); | |
1106 | sleep (1); | |
1107 | } | |
1108 | ||
b35926b9 BK |
1109 | /* IF we allocated a shell script command, |
1110 | THEN free it and restore the command format to the fix description */ | |
bb786201 BK |
1111 | if (pz_cmd != (char*)NULL) |
1112 | { | |
1113 | free ((void*)pz_cmd); | |
1114 | p_fixd->patch_args[2] = pz_cmd_save; | |
1115 | } | |
1116 | ||
1117 | return read_fd; | |
1118 | } | |
62a99405 | 1119 | #endif |
11c3a68e BK |
1120 | #ifdef DEBUG |
1121 | # define NOTE_SKIP(_ttyp) do { \ | |
1122 | if (VLEVEL( VERB_EVERYTHING )) \ | |
1123 | fprintf (stderr, z_failed, _ttyp, p_fixd->fix_name, \ | |
1124 | pz_fname, p_fixd->test_ct - test_ct); \ | |
1125 | } while (0) | |
1126 | #else | |
1127 | # define NOTE_SKIP(_ttyp) | |
1128 | #endif | |
5abc1f74 | 1129 | |
1f414ac4 | 1130 | /* * * * * * * * * * * * * |
401be4b6 BK |
1131 | * |
1132 | * Process the potential fixes for a particular include file. | |
1133 | * Input: the original text of the file and the file's name | |
1134 | * Result: none. A new file may or may not be created. | |
1135 | */ | |
6864a6c6 | 1136 | static t_bool |
f4dbf936 | 1137 | fix_applies (tFixDesc* p_fixd) |
0083c904 | 1138 | { |
ae5c839b ZW |
1139 | const char *pz_fname = pz_curr_file; |
1140 | const char *pz_scan = p_fixd->file_list; | |
5abc1f74 BK |
1141 | int test_ct; |
1142 | tTestDesc *p_test; | |
11c3a68e BK |
1143 | t_bool saw_sum_test = BOOL_FALSE; |
1144 | t_bool one_sum_passed = BOOL_FALSE; | |
0083c904 | 1145 | |
716028e4 | 1146 | #if defined(__MSDOS__) && !defined(__DJGPP__) |
62a99405 BK |
1147 | /* |
1148 | * There is only one fix that uses a shell script as of this writing. | |
1149 | * I hope to nuke it anyway, it does not apply to DOS and it would | |
1150 | * be painful to implement. Therefore, no "shell" fixes for DOS. | |
1151 | */ | |
1152 | if (p_fixd->fd_flags & (FD_SHELL_SCRIPT | FD_SKIP_TEST)) | |
1153 | return BOOL_FALSE; | |
401be4b6 | 1154 | #else |
5abc1f74 BK |
1155 | if (p_fixd->fd_flags & FD_SKIP_TEST) |
1156 | return BOOL_FALSE; | |
401be4b6 | 1157 | #endif |
0083c904 | 1158 | |
5abc1f74 BK |
1159 | /* IF there is a file name restriction, |
1160 | THEN ensure the current file name matches one in the pattern */ | |
1161 | ||
ae5c839b | 1162 | if (pz_scan != (char *) NULL) |
5abc1f74 | 1163 | { |
5abc1f74 BK |
1164 | while ((pz_fname[0] == '.') && (pz_fname[1] == '/')) |
1165 | pz_fname += 2; | |
1f414ac4 | 1166 | |
5abc1f74 | 1167 | for (;;) |
0083c904 | 1168 | { |
401be4b6 | 1169 | if (fnmatch (pz_scan, pz_fname, 0) == 0) |
5abc1f74 | 1170 | break; |
401be4b6 BK |
1171 | pz_scan += strlen (pz_scan) + 1; |
1172 | if (*pz_scan == NUL) | |
1173 | return BOOL_FALSE; | |
5abc1f74 BK |
1174 | } |
1175 | } | |
0083c904 | 1176 | |
5abc1f74 | 1177 | /* FOR each test, see if it fails. |
11c3a68e | 1178 | "sum" fails only if all "sum" tests fail. |
5abc1f74 | 1179 | IF it does fail, then we go on to the next test */ |
1f414ac4 | 1180 | |
5abc1f74 BK |
1181 | for (p_test = p_fixd->p_test_desc, test_ct = p_fixd->test_ct; |
1182 | test_ct-- > 0; | |
1183 | p_test++) | |
1184 | { | |
1185 | switch (p_test->type) | |
1186 | { | |
1187 | case TT_TEST: | |
b35926b9 | 1188 | if (test_test (p_test, pz_curr_file) != APPLY_FIX) { |
11c3a68e | 1189 | NOTE_SKIP("TEST"); |
5abc1f74 | 1190 | return BOOL_FALSE; |
b35926b9 | 1191 | } |
5abc1f74 BK |
1192 | break; |
1193 | ||
1194 | case TT_EGREP: | |
b35926b9 | 1195 | if (egrep_test (pz_curr_data, p_test) != APPLY_FIX) { |
11c3a68e | 1196 | NOTE_SKIP("EGREP"); |
5abc1f74 | 1197 | return BOOL_FALSE; |
b35926b9 | 1198 | } |
5abc1f74 BK |
1199 | break; |
1200 | ||
1201 | case TT_NEGREP: | |
b35926b9 | 1202 | if (egrep_test (pz_curr_data, p_test) == APPLY_FIX) { |
11c3a68e | 1203 | NOTE_SKIP("NEGREP"); |
5abc1f74 BK |
1204 | /* Negated sense */ |
1205 | return BOOL_FALSE; | |
b35926b9 | 1206 | } |
5abc1f74 BK |
1207 | break; |
1208 | ||
11c3a68e BK |
1209 | case TT_CKSUM: |
1210 | if (one_sum_passed) | |
efdfdb24 | 1211 | break; /* No need to check any more */ |
11c3a68e BK |
1212 | |
1213 | saw_sum_test = BOOL_TRUE; | |
1214 | if (cksum_test (pz_curr_data, p_test, pz_curr_file) != APPLY_FIX) { | |
1215 | NOTE_SKIP("CKSUM"); | |
1216 | } else { | |
1217 | one_sum_passed = BOOL_TRUE; | |
1218 | } | |
1219 | break; | |
1220 | ||
5abc1f74 BK |
1221 | case TT_FUNCTION: |
1222 | if (run_test (p_test->pz_test_text, pz_curr_file, pz_curr_data) | |
b35926b9 | 1223 | != APPLY_FIX) { |
11c3a68e | 1224 | NOTE_SKIP("FTEST"); |
5abc1f74 | 1225 | return BOOL_FALSE; |
b35926b9 | 1226 | } |
5abc1f74 | 1227 | break; |
0083c904 | 1228 | } |
5abc1f74 | 1229 | } |
0083c904 | 1230 | |
11c3a68e BK |
1231 | if (saw_sum_test) |
1232 | return one_sum_passed; | |
1233 | ||
5abc1f74 BK |
1234 | return BOOL_TRUE; |
1235 | } | |
0083c904 | 1236 | |
0083c904 | 1237 | |
5abc1f74 BK |
1238 | /* * * * * * * * * * * * * |
1239 | ||
1240 | Write out a replacement file */ | |
1241 | ||
6864a6c6 | 1242 | static void |
f4dbf936 | 1243 | write_replacement (tFixDesc* p_fixd) |
5abc1f74 BK |
1244 | { |
1245 | const char* pz_text = p_fixd->patch_args[0]; | |
1246 | ||
1247 | if ((pz_text == (char*)NULL) || (*pz_text == NUL)) | |
1248 | return; | |
1249 | ||
1250 | { | |
6864a6c6 | 1251 | FILE* out_fp = create_file (); |
66f788b0 BK |
1252 | size_t sz = strlen (pz_text); |
1253 | fwrite (pz_text, sz, 1, out_fp); | |
1254 | if (pz_text[ sz-1 ] != '\n') | |
1255 | fputc ('\n', out_fp); | |
5abc1f74 BK |
1256 | fclose (out_fp); |
1257 | } | |
1258 | } | |
1259 | ||
1260 | ||
1261 | /* * * * * * * * * * * * * | |
1262 | ||
1263 | We have work to do. Read back in the output | |
1264 | of the filtering chain. Compare each byte as we read it with | |
1265 | the contents of the original file. As soon as we find any | |
1266 | difference, we will create the output file, write out all | |
1267 | the matched text and then copy any remaining data from the | |
1268 | output of the filter chain. | |
1269 | */ | |
6864a6c6 | 1270 | static void |
f4dbf936 | 1271 | test_for_changes (int read_fd) |
5abc1f74 BK |
1272 | { |
1273 | FILE *in_fp = fdopen (read_fd, "r"); | |
1274 | FILE *out_fp = (FILE *) NULL; | |
90376ae2 | 1275 | unsigned char *pz_cmp = (unsigned char*)pz_curr_data; |
5abc1f74 BK |
1276 | |
1277 | #ifdef DO_STATS | |
1278 | fixed_ct++; | |
1f414ac4 | 1279 | #endif |
5abc1f74 BK |
1280 | for (;;) |
1281 | { | |
1282 | int ch; | |
0083c904 | 1283 | |
5abc1f74 BK |
1284 | ch = getc (in_fp); |
1285 | if (ch == EOF) | |
1286 | break; | |
90376ae2 | 1287 | ch &= 0xFF; /* all bytes are 8 bits */ |
5abc1f74 BK |
1288 | |
1289 | /* IF we are emitting the output | |
1290 | THEN emit this character, too. | |
1291 | */ | |
1292 | if (out_fp != (FILE *) NULL) | |
1293 | putc (ch, out_fp); | |
1294 | ||
1295 | /* ELSE if this character does not match the original, | |
1296 | THEN now is the time to start the output. | |
1297 | */ | |
1298 | else if (ch != *pz_cmp) | |
1299 | { | |
6864a6c6 | 1300 | out_fp = create_file (); |
5abc1f74 BK |
1301 | |
1302 | #ifdef DO_STATS | |
1303 | altered_ct++; | |
1f414ac4 | 1304 | #endif |
5abc1f74 | 1305 | /* IF there are matched data, write the matched part now. */ |
c8b0c191 BK |
1306 | if ((char*)pz_cmp != pz_curr_data) |
1307 | fwrite (pz_curr_data, (size_t)((char*)pz_cmp - pz_curr_data), | |
11c3a68e | 1308 | 1, out_fp); |
5abc1f74 BK |
1309 | |
1310 | /* Emit the current unmatching character */ | |
1311 | putc (ch, out_fp); | |
0083c904 | 1312 | } |
5abc1f74 BK |
1313 | else |
1314 | /* ELSE the character matches. Advance the compare ptr */ | |
1315 | pz_cmp++; | |
1316 | } | |
1317 | ||
1318 | /* IF we created the output file, ... */ | |
1319 | if (out_fp != (FILE *) NULL) | |
1320 | { | |
1321 | regmatch_t match; | |
1322 | ||
1323 | /* Close the file and see if we have to worry about | |
1324 | `#include "file.h"' constructs. */ | |
1325 | fclose (out_fp); | |
ab747408 | 1326 | if (xregexec (&incl_quote_re, pz_curr_data, 1, &match, 0) == 0) |
5abc1f74 BK |
1327 | extract_quoted_files (pz_curr_data, pz_curr_file, &match); |
1328 | } | |
1329 | ||
1330 | fclose (in_fp); | |
1331 | close (read_fd); /* probably redundant, but I'm paranoid */ | |
1332 | } | |
1333 | ||
1334 | ||
1335 | /* * * * * * * * * * * * * | |
1336 | ||
1337 | Process the potential fixes for a particular include file. | |
1338 | Input: the original text of the file and the file's name | |
1339 | Result: none. A new file may or may not be created. */ | |
1340 | ||
1341 | void | |
f4dbf936 | 1342 | process (void) |
5abc1f74 | 1343 | { |
5abc1f74 BK |
1344 | tFixDesc *p_fixd = fixDescList; |
1345 | int todo_ct = FIX_COUNT; | |
1346 | int read_fd = -1; | |
283da1d3 | 1347 | # ifndef SEPARATE_FIX_PROC |
5abc1f74 | 1348 | int num_children = 0; |
283da1d3 | 1349 | # else /* is SEPARATE_FIX_PROC */ |
62a99405 BK |
1350 | char* pz_file_source = pz_curr_file; |
1351 | # endif | |
5abc1f74 BK |
1352 | |
1353 | if (access (pz_curr_file, R_OK) != 0) | |
1354 | { | |
3363022e XR |
1355 | /* It may happens if for e. g. the distro ships some broken symlinks |
1356 | in /usr/include. */ | |
1357 | ||
1358 | /* "INPUT" is exported in fixinc.sh, which is the pwd where fixincl | |
1359 | runs. It's used instead of getcwd to avoid allocating a buffer | |
1360 | with unknown length. */ | |
1361 | const char *cwd = getenv ("INPUT"); | |
1362 | if (!cwd) | |
1363 | cwd = "the working directory"; | |
1364 | ||
1365 | fprintf (stderr, "Cannot access %s from %s: %s\n", pz_curr_file, cwd, | |
04c5a91d | 1366 | xstrerror (errno)); |
3363022e | 1367 | return; |
5abc1f74 BK |
1368 | } |
1369 | ||
1370 | pz_curr_data = load_file (pz_curr_file); | |
1371 | if (pz_curr_data == (char *) NULL) | |
1372 | return; | |
1373 | ||
1374 | #ifdef DO_STATS | |
1375 | process_ct++; | |
1376 | #endif | |
d7eb5a45 | 1377 | if (VLEVEL( VERB_PROGRESS ) && have_tty) |
1c99d804 | 1378 | fprintf (stderr, "%6lu %-50s \r", |
11c3a68e | 1379 | (unsigned long) data_map_size, pz_curr_file); |
5abc1f74 | 1380 | |
283da1d3 | 1381 | # ifndef SEPARATE_FIX_PROC |
5abc1f74 BK |
1382 | process_chain_head = NOPROCESS; |
1383 | ||
1384 | /* For every fix in our fix list, ... */ | |
1385 | for (; todo_ct > 0; p_fixd++, todo_ct--) | |
1386 | { | |
1387 | if (! fix_applies (p_fixd)) | |
1388 | continue; | |
0083c904 | 1389 | |
b35926b9 BK |
1390 | if (VLEVEL( VERB_APPLIES )) |
1391 | fprintf (stderr, "Applying %-24s to %s\n", | |
1392 | p_fixd->fix_name, pz_curr_file); | |
5abc1f74 BK |
1393 | |
1394 | if (p_fixd->fd_flags & FD_REPLACEMENT) | |
1395 | { | |
1396 | write_replacement (p_fixd); | |
1397 | UNLOAD_DATA(); | |
1398 | return; | |
1399 | } | |
1f414ac4 BK |
1400 | |
1401 | /* IF we do not have a read pointer, | |
1402 | THEN this is the first fix for the current file. | |
1403 | Open the source file. That will be used as stdin for | |
1404 | the first fix. Any subsequent fixes will use the | |
5abc1f74 | 1405 | stdout descriptor of the previous fix for its stdin. */ |
0083c904 | 1406 | |
48ac9ce2 | 1407 | if (read_fd == -1) |
1f414ac4 | 1408 | { |
5abc1f74 | 1409 | read_fd = open (pz_curr_file, O_RDONLY); |
48ac9ce2 | 1410 | if (read_fd < 0) |
0083c904 | 1411 | { |
1f414ac4 | 1412 | fprintf (stderr, "Error %d (%s) opening %s\n", errno, |
f95e46b9 | 1413 | xstrerror (errno), pz_curr_file); |
1f414ac4 | 1414 | exit (EXIT_FAILURE); |
0083c904 | 1415 | } |
5abc1f74 BK |
1416 | |
1417 | /* Ensure we do not get duplicate output */ | |
1418 | ||
1419 | fflush (stdout); | |
1f414ac4 | 1420 | } |
0083c904 | 1421 | |
5abc1f74 | 1422 | read_fd = start_fixer (read_fd, p_fixd, pz_curr_file); |
bb786201 | 1423 | num_children++; |
0083c904 BK |
1424 | } |
1425 | ||
5abc1f74 BK |
1426 | /* IF we have a read-back file descriptor, |
1427 | THEN check for changes and write output if changed. */ | |
1f414ac4 | 1428 | |
5abc1f74 BK |
1429 | if (read_fd >= 0) |
1430 | { | |
1431 | test_for_changes (read_fd); | |
1432 | #ifdef DO_STATS | |
1433 | apply_ct += num_children; | |
1434 | #endif | |
1435 | /* Wait for child processes created by chain_open() | |
1436 | to avoid leaving zombies. */ | |
1437 | do { | |
1438 | wait ((int *) NULL); | |
1439 | } while (--num_children > 0); | |
1440 | } | |
9f8eec39 | 1441 | |
283da1d3 | 1442 | # else /* is SEPARATE_FIX_PROC */ |
62a99405 BK |
1443 | |
1444 | for (; todo_ct > 0; p_fixd++, todo_ct--) | |
1445 | { | |
1446 | if (! fix_applies (p_fixd)) | |
1447 | continue; | |
1448 | ||
1449 | if (VLEVEL( VERB_APPLIES )) | |
1450 | fprintf (stderr, "Applying %-24s to %s\n", | |
1451 | p_fixd->fix_name, pz_curr_file); | |
1452 | ||
1453 | if (p_fixd->fd_flags & FD_REPLACEMENT) | |
1454 | { | |
1455 | write_replacement (p_fixd); | |
1456 | UNLOAD_DATA(); | |
1457 | return; | |
1458 | } | |
1459 | fix_with_system (p_fixd, pz_curr_file, pz_file_source, pz_temp_file); | |
1460 | pz_file_source = pz_temp_file; | |
1461 | } | |
1462 | ||
283da1d3 DB |
1463 | read_fd = open (pz_temp_file, O_RDONLY); |
1464 | if (read_fd < 0) | |
1465 | { | |
ca21b4a5 BK |
1466 | if (errno != ENOENT) |
1467 | fprintf (stderr, "error %d (%s) opening output (%s) for read\n", | |
1468 | errno, xstrerror (errno), pz_temp_file); | |
283da1d3 DB |
1469 | } |
1470 | else | |
1471 | { | |
1472 | test_for_changes (read_fd); | |
1473 | /* Unlinking a file while it is still open is a Bad Idea on | |
1474 | DOS/Windows. */ | |
1475 | close (read_fd); | |
1476 | unlink (pz_temp_file); | |
1477 | } | |
62a99405 BK |
1478 | |
1479 | # endif | |
5abc1f74 | 1480 | UNLOAD_DATA(); |
0083c904 | 1481 | } |