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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 | ||
99d525c9 PDM |
27 | #if HAVE_MMAP |
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 | ||
78a0d70c ZW |
36 | #define NO_BOGOSITY |
37 | ||
5abc1f74 | 38 | /* Quality Assurance Marker :-) |
1f414ac4 | 39 | |
5abc1f74 BK |
40 | Any file that contains this string is presumed to have |
41 | been carefully constructed and will not be fixed */ | |
0083c904 | 42 | |
5abc1f74 BK |
43 | /* The contents of this string are not very important. It is mostly |
44 | just used as part of the "I am alive and working" test. */ | |
0083c904 | 45 | |
5abc1f74 | 46 | static const char program_id[] = "fixincl version 1.1"; |
0083c904 | 47 | |
1f414ac4 | 48 | /* Test Descriptor |
0083c904 | 49 | |
1f414ac4 BK |
50 | Each fix may have associated tests that determine |
51 | whether the fix needs to be applied or not. | |
52 | Each test has a type (from the te_test_type enumeration); | |
53 | associated test text; and, if the test is TT_EGREP or | |
54 | the negated form TT_NEGREP, a pointer to the compiled | |
55 | version of the text string. | |
56 | ||
57 | */ | |
0083c904 | 58 | typedef enum |
1f414ac4 | 59 | { |
5abc1f74 | 60 | TT_TEST, TT_EGREP, TT_NEGREP, TT_FUNCTION |
1f414ac4 | 61 | } te_test_type; |
0083c904 BK |
62 | |
63 | typedef struct test_desc tTestDesc; | |
64 | ||
65 | struct test_desc | |
1f414ac4 BK |
66 | { |
67 | te_test_type type; | |
68 | const char *pz_test_text; | |
69 | regex_t *p_test_regex; | |
70 | }; | |
0083c904 BK |
71 | |
72 | typedef struct patch_desc tPatchDesc; | |
73 | ||
1f414ac4 BK |
74 | /* Fix Descriptor |
75 | ||
76 | Everything you ever wanted to know about how to apply | |
77 | a particular fix (which files, how to qualify them, | |
78 | how to actually make the fix, etc...) | |
79 | ||
5abc1f74 BK |
80 | NB: the FD_ defines are BIT FLAGS |
81 | ||
1f414ac4 | 82 | */ |
0083c904 BK |
83 | #define FD_MACH_ONLY 0x0000 |
84 | #define FD_MACH_IFNOT 0x0001 | |
bb786201 | 85 | #define FD_SHELL_SCRIPT 0x0002 |
5abc1f74 BK |
86 | #define FD_SUBROUTINE 0x0004 |
87 | #define FD_REPLACEMENT 0x0008 | |
0083c904 BK |
88 | #define FD_SKIP_TEST 0x8000 |
89 | ||
90 | typedef struct fix_desc tFixDesc; | |
91 | struct fix_desc | |
1f414ac4 BK |
92 | { |
93 | const char* fix_name; /* Name of the fix */ | |
94 | const char* file_list; /* List of files it applies to */ | |
95 | const char** papz_machs; /* List of machine/os-es it applies to */ | |
96 | regex_t* unused; | |
97 | int test_ct; | |
98 | int fd_flags; | |
99 | tTestDesc* p_test_desc; | |
100 | const char** patch_args; | |
101 | }; | |
102 | ||
103 | /* Working environment strings. Essentially, invocation 'options'. */ | |
104 | char *pz_dest_dir = NULL; | |
105 | char *pz_src_dir = NULL; | |
106 | char *pz_machine = NULL; | |
7d9ccd90 | 107 | int find_base_len = 0; |
1f414ac4 | 108 | |
b35926b9 BK |
109 | typedef enum { |
110 | VERB_SILENT = 0, | |
111 | VERB_FIXES, | |
112 | VERB_APPLIES, | |
113 | VERB_PROGRESS, | |
114 | VERB_TESTS, | |
115 | VERB_EVERYTHING | |
116 | } te_verbose; | |
117 | ||
118 | te_verbose verbose_level = VERB_PROGRESS; | |
d7eb5a45 | 119 | int have_tty = 0; |
b35926b9 BK |
120 | |
121 | #define VLEVEL(l) (verbose_level >= l) | |
122 | #define NOT_SILENT VLEVEL(VERB_FIXES) | |
123 | ||
1f414ac4 BK |
124 | pid_t process_chain_head = (pid_t) -1; |
125 | ||
5abc1f74 BK |
126 | char* pz_curr_file; /* name of the current file under test/fix */ |
127 | char* pz_curr_data; /* original contents of that file */ | |
128 | t_bool curr_data_mapped; | |
129 | int data_map_fd; | |
130 | size_t data_map_size; | |
131 | size_t ttl_data_size = 0; | |
132 | #ifdef DO_STATS | |
133 | int process_ct = 0; | |
134 | int apply_ct = 0; | |
135 | int fixed_ct = 0; | |
136 | int altered_ct = 0; | |
137 | #endif /* DO_STATS */ | |
138 | ||
139 | #ifdef HAVE_MMAP | |
140 | #define UNLOAD_DATA() do { if (curr_data_mapped) { \ | |
141 | munmap ((void*)pz_curr_data, data_map_size); close (data_map_fd); } \ | |
142 | else free ((void*)pz_curr_data); } while(0) | |
143 | #else | |
144 | #define UNLOAD_DATA() free ((void*)pz_curr_data) | |
145 | #endif | |
146 | ||
1f414ac4 | 147 | const char incl_quote_pat[] = "^[ \t]*#[ \t]*include[ \t]*\"[^/]"; |
5abc1f74 | 148 | tSCC z_fork_err[] = "Error %d (%s) starting filter process for %s\n"; |
1f414ac4 BK |
149 | regex_t incl_quote_re; |
150 | ||
5abc1f74 | 151 | void do_version (); |
94db2f71 BK |
152 | char *load_file _P_((const char *)); |
153 | void process _P_((char *, const char *)); | |
d1c6a037 | 154 | void run_compiles (); |
d1c6a037 | 155 | void initialize (); |
5abc1f74 BK |
156 | void process (); |
157 | ||
158 | /* External Source Code */ | |
0083c904 BK |
159 | |
160 | #include "fixincl.x" | |
5abc1f74 BK |
161 | #include "fixtests.c" |
162 | #include "fixfixes.c" | |
0083c904 | 163 | |
1f414ac4 BK |
164 | /* * * * * * * * * * * * * * * * * * * |
165 | * | |
166 | * MAIN ROUTINE | |
167 | */ | |
0083c904 BK |
168 | int |
169 | main (argc, argv) | |
170 | int argc; | |
171 | char **argv; | |
172 | { | |
5abc1f74 | 173 | char *file_name_buf; |
0083c904 | 174 | |
1f414ac4 BK |
175 | switch (argc) |
176 | { | |
177 | case 1: | |
178 | break; | |
179 | ||
180 | case 2: | |
0083c904 | 181 | if (strcmp (argv[1], "-v") == 0) |
5abc1f74 BK |
182 | do_version (); |
183 | if (freopen (argv[1], "r", stdin) == (FILE*)NULL) | |
0083c904 | 184 | { |
5abc1f74 BK |
185 | fprintf (stderr, "Error %d (%s) reopening %s as stdin\n", |
186 | errno, strerror (errno), argv[1] ); | |
187 | exit (EXIT_FAILURE); | |
0083c904 | 188 | } |
1f414ac4 BK |
189 | break; |
190 | ||
191 | default: | |
192 | fputs ("fixincl ERROR: too many command line arguments\n", stderr); | |
193 | exit (EXIT_FAILURE); | |
0083c904 BK |
194 | } |
195 | ||
d1c6a037 BK |
196 | initialize (); |
197 | ||
d7eb5a45 ZW |
198 | have_tty = isatty (fileno (stderr)); |
199 | ||
5abc1f74 BK |
200 | /* Before anything else, ensure we can allocate our file name buffer. */ |
201 | file_name_buf = load_file_data (stdin); | |
202 | ||
203 | /* Because of the way server shells work, you have to keep stdin, out | |
204 | and err open so that the proper input file does not get closed | |
205 | by accident */ | |
206 | ||
207 | freopen ("/dev/null", "r", stdin); | |
208 | ||
209 | if (file_name_buf == (char *) NULL) | |
210 | { | |
211 | fputs ("No file names listed for fixing\n", stderr); | |
212 | exit (EXIT_FAILURE); | |
213 | } | |
214 | ||
d1c6a037 BK |
215 | for (;;) |
216 | { | |
5abc1f74 | 217 | char* pz_end; |
d1c6a037 | 218 | |
5abc1f74 | 219 | /* skip to start of name, past any "./" prefixes */ |
d1c6a037 | 220 | |
5abc1f74 BK |
221 | while (ISSPACE (*file_name_buf)) file_name_buf++; |
222 | while ((file_name_buf[0] == '.') && (file_name_buf[1] == '/')) | |
223 | file_name_buf += 2; | |
d1c6a037 | 224 | |
5abc1f74 BK |
225 | /* Check for end of list */ |
226 | ||
227 | if (*file_name_buf == NUL) | |
228 | break; | |
229 | ||
230 | /* Set global file name pointer and find end of name */ | |
231 | ||
232 | pz_curr_file = file_name_buf; | |
233 | pz_end = strchr( pz_curr_file, '\n' ); | |
234 | if (pz_end == (char*)NULL) | |
235 | pz_end = file_name_buf = pz_curr_file + strlen (pz_curr_file); | |
236 | else | |
237 | file_name_buf = pz_end + 1; | |
238 | ||
239 | while ((pz_end > pz_curr_file) && ISSPACE( pz_end[-1])) pz_end--; | |
240 | ||
241 | /* IF no name is found (blank line) or comment marker, skip line */ | |
242 | ||
243 | if ((pz_curr_file == pz_end) || (*pz_curr_file == '#')) | |
244 | continue; | |
245 | *pz_end = NUL; | |
d1c6a037 | 246 | |
5abc1f74 BK |
247 | #ifdef NO_BOGOSITY |
248 | process (); | |
249 | #else | |
250 | /* Prevent duplicate output by child process */ | |
d1c6a037 | 251 | |
94db2f71 BK |
252 | fflush (stdout); |
253 | fflush (stderr); | |
254 | ||
d1c6a037 | 255 | { |
5abc1f74 | 256 | void wait_for_pid _P_(( pid_t )); |
d1c6a037 BK |
257 | pid_t child = fork (); |
258 | if (child == NULLPROCESS) | |
5abc1f74 BK |
259 | { |
260 | process (); | |
261 | return EXIT_SUCCESS; | |
262 | } | |
d1c6a037 BK |
263 | |
264 | if (child == NOPROCESS) | |
265 | { | |
266 | fprintf (stderr, "Error %d (%s) forking in main\n", | |
267 | errno, strerror (errno)); | |
268 | exit (EXIT_FAILURE); | |
269 | } | |
270 | ||
5abc1f74 | 271 | wait_for_pid( child ); |
d1c6a037 | 272 | } |
d1c6a037 | 273 | #endif |
5abc1f74 | 274 | } /* for (;;) */ |
d1c6a037 | 275 | |
5abc1f74 | 276 | #ifdef DO_STATS |
b35926b9 | 277 | if (VLEVEL( VERB_PROGRESS )) { |
5abc1f74 BK |
278 | tSCC zFmt[] = |
279 | "\ | |
280 | Processed %5d files containing %d bytes \n\ | |
281 | Applying %5d fixes to %d files\n\ | |
282 | Altering %5d of them\n"; | |
283 | ||
284 | fprintf (stderr, zFmt, process_ct, ttl_data_size, apply_ct, | |
285 | fixed_ct, altered_ct); | |
286 | } | |
287 | #endif /* DO_STATS */ | |
d1c6a037 BK |
288 | return EXIT_SUCCESS; |
289 | } | |
290 | ||
291 | ||
5abc1f74 BK |
292 | void |
293 | do_version () | |
294 | { | |
295 | static const char zFmt[] = "echo '%s'"; | |
296 | char zBuf[ 1024 ]; | |
297 | ||
298 | /* The 'version' option is really used to test that: | |
299 | 1. The program loads correctly (no missing libraries) | |
300 | 2. we can correctly run our server shell process | |
301 | 3. that we can compile all the regular expressions. | |
302 | */ | |
303 | run_compiles (); | |
304 | sprintf (zBuf, zFmt, program_id); | |
305 | fputs (zBuf + 5, stdout); | |
306 | exit (strcmp (run_shell (zBuf), program_id)); | |
307 | } | |
308 | ||
d1c6a037 BK |
309 | /* * * * * * * * * * * * */ |
310 | ||
311 | void | |
5abc1f74 | 312 | initialize () |
d1c6a037 BK |
313 | { |
314 | static const char var_not_found[] = | |
5abc1f74 BK |
315 | "fixincl ERROR: %s environment variable not defined\n\ |
316 | \tTARGET_MACHINE, DESTDIR, SRCDIR and FIND_BASE are required\n"; | |
d1c6a037 | 317 | |
0083c904 | 318 | { |
1f414ac4 BK |
319 | static const char var[] = "TARGET_MACHINE"; |
320 | pz_machine = getenv (var); | |
321 | if (pz_machine == (char *) NULL) | |
0083c904 | 322 | { |
1f414ac4 | 323 | fprintf (stderr, var_not_found, var); |
0083c904 BK |
324 | exit (EXIT_FAILURE); |
325 | } | |
326 | } | |
327 | ||
328 | { | |
1f414ac4 BK |
329 | static const char var[] = "DESTDIR"; |
330 | pz_dest_dir = getenv (var); | |
331 | if (pz_dest_dir == (char *) NULL) | |
0083c904 | 332 | { |
1f414ac4 | 333 | fprintf (stderr, var_not_found, var); |
0083c904 BK |
334 | exit (EXIT_FAILURE); |
335 | } | |
336 | } | |
337 | ||
338 | { | |
1f414ac4 BK |
339 | static const char var[] = "SRCDIR"; |
340 | pz_src_dir = getenv (var); | |
341 | if (pz_src_dir == (char *) NULL) | |
0083c904 | 342 | { |
1f414ac4 | 343 | fprintf (stderr, var_not_found, var); |
0083c904 BK |
344 | exit (EXIT_FAILURE); |
345 | } | |
346 | } | |
347 | ||
b35926b9 BK |
348 | { |
349 | static const char var[] = "VERBOSE"; | |
350 | char* pz = getenv (var); | |
351 | if (pz != (char *) NULL) | |
352 | { | |
353 | if (isdigit( *pz )) | |
354 | verbose_level = (te_verbose)atoi( pz ); | |
355 | else | |
356 | switch (*pz) { | |
357 | case 's': | |
358 | case 'S': | |
359 | verbose_level = VERB_SILENT; break; | |
360 | ||
361 | case 'f': | |
362 | case 'F': | |
363 | verbose_level = VERB_FIXES; break; | |
364 | ||
365 | case 'a': | |
366 | case 'A': | |
367 | verbose_level = VERB_APPLIES; break; | |
368 | ||
369 | case 'p': | |
370 | case 'P': | |
371 | verbose_level = VERB_PROGRESS; break; | |
372 | ||
373 | case 't': | |
374 | case 'T': | |
375 | verbose_level = VERB_TESTS; break; | |
376 | ||
377 | case 'e': | |
378 | case 'E': | |
379 | verbose_level = VERB_EVERYTHING; break; | |
380 | } | |
381 | } | |
382 | } | |
383 | ||
7d9ccd90 BK |
384 | { |
385 | static const char var[] = "FIND_BASE"; | |
5abc1f74 BK |
386 | char *pz = getenv (var); |
387 | if (pz == (char *) NULL) | |
7d9ccd90 BK |
388 | { |
389 | fprintf (stderr, var_not_found, var); | |
390 | exit (EXIT_FAILURE); | |
391 | } | |
5abc1f74 BK |
392 | while ((pz[0] == '.') && (pz[1] == '/')) |
393 | pz += 2; | |
394 | if ((pz[0] != '.') || (pz[1] != NUL)) | |
395 | find_base_len = strlen( pz ); | |
7d9ccd90 BK |
396 | } |
397 | ||
1f414ac4 BK |
398 | /* Compile all the regular expressions now. |
399 | That way, it is done only once for the whole run. | |
400 | */ | |
401 | run_compiles (); | |
0083c904 | 402 | |
1f414ac4 BK |
403 | signal (SIGQUIT, SIG_IGN); |
404 | signal (SIGIOT, SIG_IGN); | |
405 | signal (SIGPIPE, SIG_IGN); | |
406 | signal (SIGALRM, SIG_IGN); | |
407 | signal (SIGTERM, SIG_IGN); | |
5abc1f74 | 408 | #ifndef NO_BOGOSITY |
d1c6a037 BK |
409 | /* |
410 | Make sure that if we opened a server process, we close it now. | |
411 | This is the grandparent process. We don't need the server anymore | |
412 | and our children should make their own. */ | |
0083c904 | 413 | |
d1c6a037 BK |
414 | close_server (); |
415 | (void)wait ( (int*)NULL ); | |
5abc1f74 | 416 | #endif |
d1c6a037 | 417 | } |
0083c904 | 418 | |
5abc1f74 | 419 | #ifndef NO_BOGOSITY |
d1c6a037 | 420 | /* * * * * * * * * * * * * |
5abc1f74 | 421 | |
d1c6a037 BK |
422 | wait_for_pid - Keep calling `wait(2)' until it returns |
423 | the process id we are looking for. Not every system has | |
424 | `waitpid(2)'. We also ensure that the children exit with success. */ | |
7d9ccd90 | 425 | |
d1c6a037 | 426 | void |
5abc1f74 | 427 | wait_for_pid(child) |
48ac9ce2 | 428 | pid_t child; |
d1c6a037 | 429 | { |
d1c6a037 BK |
430 | for (;;) { |
431 | int status; | |
432 | pid_t dead_kid = wait (&status); | |
7d9ccd90 | 433 | |
d1c6a037 BK |
434 | if (dead_kid == child) |
435 | { | |
436 | if (! WIFEXITED( status )) | |
437 | { | |
87ad679b BK |
438 | if (WSTOPSIG( status ) == 0) |
439 | break; | |
440 | ||
441 | fprintf (stderr, "child process %d is hung on signal %d\n", | |
442 | child, WSTOPSIG( status )); | |
d1c6a037 BK |
443 | exit (EXIT_FAILURE); |
444 | } | |
445 | if (WEXITSTATUS( status ) != 0) | |
446 | { | |
87ad679b BK |
447 | fprintf (stderr, "child process %d exited with status %d\n", |
448 | child, WEXITSTATUS( status )); | |
d1c6a037 BK |
449 | exit (EXIT_FAILURE); |
450 | } | |
d1c6a037 BK |
451 | break; /* normal child completion */ |
452 | } | |
1f414ac4 | 453 | |
d1c6a037 BK |
454 | /* |
455 | IF there is an error, THEN see if it is retryable. | |
456 | If it is not retryable, then break out of this loop. */ | |
457 | if (dead_kid == NOPROCESS) | |
458 | { | |
459 | switch (errno) { | |
460 | case EINTR: | |
461 | case EAGAIN: | |
462 | break; | |
463 | ||
464 | default: | |
b35926b9 BK |
465 | if (NOT_SILENT) |
466 | fprintf (stderr, "Error %d (%s) waiting for %d to finish\n", | |
467 | errno, strerror( errno ), child ); | |
d1c6a037 BK |
468 | /* FALLTHROUGH */ |
469 | ||
470 | case ECHILD: /* no children to wait for?? */ | |
471 | return; | |
0083c904 | 472 | } |
d1c6a037 BK |
473 | } |
474 | } done_waiting:; | |
0083c904 | 475 | } |
5abc1f74 | 476 | #endif /* NO_BOGOSITY */ |
0083c904 | 477 | |
1f414ac4 | 478 | /* * * * * * * * * * * * * |
5abc1f74 | 479 | |
1f414ac4 BK |
480 | load_file loads all the contents of a file into malloc-ed memory. |
481 | Its argument is the name of the file to read in; the returned | |
482 | result is the NUL terminated contents of the file. The file | |
483 | is presumed to be an ASCII text file containing no NULs. */ | |
0083c904 | 484 | char * |
5abc1f74 BK |
485 | load_file ( fname ) |
486 | const char* fname; | |
0083c904 | 487 | { |
5abc1f74 BK |
488 | struct stat stbf; |
489 | char* res; | |
0083c904 | 490 | |
5abc1f74 | 491 | if (stat (fname, &stbf) != 0) |
0083c904 | 492 | { |
b35926b9 BK |
493 | if (NOT_SILENT) |
494 | fprintf (stderr, "error %d (%s) stat-ing %s\n", | |
495 | errno, strerror (errno), fname ); | |
5abc1f74 | 496 | return (char *) NULL; |
0083c904 | 497 | } |
5abc1f74 BK |
498 | if (stbf.st_size == 0) |
499 | return (char*)NULL; | |
0083c904 | 500 | |
5abc1f74 BK |
501 | data_map_size = stbf.st_size+1; |
502 | data_map_fd = open (fname, O_RDONLY); | |
503 | ttl_data_size += data_map_size-1; | |
0083c904 | 504 | |
5abc1f74 BK |
505 | if (data_map_fd < 0) |
506 | { | |
b35926b9 BK |
507 | if (NOT_SILENT) |
508 | fprintf (stderr, "error %d (%s) opening %s for read\n", | |
509 | errno, strerror (errno), fname); | |
5abc1f74 BK |
510 | return (char*)NULL; |
511 | } | |
0083c904 | 512 | |
5abc1f74 BK |
513 | #ifdef HAVE_MMAP |
514 | curr_data_mapped = BOOL_TRUE; | |
515 | res = (char*)mmap ((void*)NULL, data_map_size, PROT_READ, MAP_PRIVATE, | |
516 | data_map_fd, 0); | |
517 | if (res == (char*)BAD_ADDR) | |
518 | { | |
519 | curr_data_mapped = BOOL_FALSE; | |
520 | res = load_file_data ( fdopen (data_map_fd, "r")); | |
521 | } | |
522 | #else | |
523 | curr_data_mapped = BOOL_FALSE; | |
524 | res = load_file_data ( fdopen (data_map_fd, "r")); | |
525 | #endif | |
0083c904 | 526 | |
5abc1f74 | 527 | return res; |
0083c904 BK |
528 | } |
529 | ||
530 | ||
1f414ac4 | 531 | /* * * * * * * * * * * * * |
5abc1f74 | 532 | |
1f414ac4 BK |
533 | run_compiles run all the regexp compiles for all the fixes once. |
534 | */ | |
0083c904 | 535 | void |
1f414ac4 | 536 | run_compiles () |
0083c904 | 537 | { |
1f414ac4 BK |
538 | tFixDesc *p_fixd = fixDescList; |
539 | int fix_ct = FIX_COUNT; | |
540 | tTestDesc *p_test; | |
541 | int test_ct; | |
542 | int re_ct = REGEX_COUNT; | |
543 | const char *pz_err; | |
544 | regex_t *p_re = (regex_t *) malloc (REGEX_COUNT * sizeof (regex_t)); | |
545 | ||
546 | if (p_re == (regex_t *) NULL) | |
0083c904 BK |
547 | { |
548 | fprintf (stderr, "fixincl ERROR: cannot allocate %d bytes for regex\n", | |
549 | REGEX_COUNT * sizeof (regex_t)); | |
550 | exit (EXIT_FAILURE); | |
551 | } | |
552 | ||
b51207a4 | 553 | /* Make sure compile_re does not stumble across invalid data */ |
d1c6a037 BK |
554 | |
555 | memset ( (void*)p_re, '\0', REGEX_COUNT * sizeof (regex_t) ); | |
556 | memset ( (void*)&incl_quote_re, '\0', sizeof (regex_t) ); | |
557 | ||
b51207a4 ZW |
558 | compile_re (incl_quote_pat, &incl_quote_re, 1, |
559 | "quoted include", "run_compiles"); | |
0083c904 | 560 | |
1f414ac4 | 561 | /* FOR every fixup, ... */ |
0083c904 BK |
562 | do |
563 | { | |
1f414ac4 BK |
564 | p_test = p_fixd->p_test_desc; |
565 | test_ct = p_fixd->test_ct; | |
0083c904 | 566 | |
1f414ac4 BK |
567 | /* IF the machine type pointer is not NULL (we are not in test mode) |
568 | AND this test is for or not done on particular machines | |
569 | THEN ... */ | |
570 | ||
571 | if ( (pz_machine != NULL) | |
572 | && (p_fixd->papz_machs != (const char**) NULL) ) | |
573 | { | |
5abc1f74 | 574 | tSCC case_fmt[] = "case %s in\n"; /* 9 bytes, plus string */ |
99d525c9 PDM |
575 | tSCC esac_fmt[] = |
576 | " )\n echo %s ;;\n* ) echo %s ;;\nesac";/* 4 bytes */ | |
5abc1f74 BK |
577 | tSCC skip[] = "skip"; /* 4 bytes */ |
578 | tSCC run[] = "run"; /* 3 bytes */ | |
579 | /* total bytes to add to machine sum: 49 - see fixincl.tpl */ | |
580 | ||
1f414ac4 | 581 | const char **papz_machs = p_fixd->papz_machs; |
5abc1f74 | 582 | char *pz; |
1f414ac4 BK |
583 | char *pz_sep = ""; |
584 | tCC *pz_if_true; | |
585 | tCC *pz_if_false; | |
5abc1f74 | 586 | char cmd_buf[ MACH_LIST_SIZE_LIMIT ]; /* size lim from fixincl.tpl */ |
1f414ac4 | 587 | |
5abc1f74 | 588 | /* Start the case statement */ |
1f414ac4 | 589 | |
5abc1f74 BK |
590 | sprintf (cmd_buf, case_fmt, pz_machine); |
591 | pz = cmd_buf + strlen (cmd_buf); | |
1f414ac4 | 592 | |
5abc1f74 | 593 | /* Determine if a match means to apply the fix or not apply it */ |
1f414ac4 BK |
594 | |
595 | if (p_fixd->fd_flags & FD_MACH_IFNOT) | |
596 | { | |
597 | pz_if_true = skip; | |
598 | pz_if_false = run; | |
599 | } | |
600 | else | |
601 | { | |
602 | pz_if_true = run; | |
603 | pz_if_false = skip; | |
604 | } | |
605 | ||
5abc1f74 BK |
606 | /* Emit all the machine names. If there are more than one, |
607 | then we will insert " | \\\n" between the names */ | |
1f414ac4 BK |
608 | |
609 | for (;;) | |
610 | { | |
611 | const char* pz_mach = *(papz_machs++); | |
612 | ||
613 | if (pz_mach == (const char*) NULL) | |
614 | break; | |
5abc1f74 | 615 | sprintf (pz, "%s%s", pz_sep, pz_mach); |
1f414ac4 BK |
616 | pz += strlen (pz); |
617 | pz_sep = " | \\\n"; | |
618 | } | |
5abc1f74 BK |
619 | |
620 | /* Now emit the match and not-match actions and the esac */ | |
621 | ||
622 | sprintf (pz, esac_fmt, pz_if_true, pz_if_false); | |
1f414ac4 BK |
623 | |
624 | /* Run the script. | |
625 | The result will start either with 's' or 'r'. */ | |
626 | ||
7d032a4f RO |
627 | { |
628 | int skip; | |
5abc1f74 | 629 | pz = run_shell (cmd_buf); |
7d032a4f RO |
630 | skip = (*pz == 's'); |
631 | free ( (void*)pz ); | |
632 | if (skip) | |
633 | { | |
634 | p_fixd->fd_flags |= FD_SKIP_TEST; | |
635 | continue; | |
636 | } | |
637 | } | |
0083c904 | 638 | } |
0083c904 | 639 | |
1f414ac4 BK |
640 | /* FOR every test for the fixup, ... */ |
641 | ||
642 | while (--test_ct >= 0) | |
0083c904 | 643 | { |
1f414ac4 | 644 | switch (p_test->type) |
0083c904 BK |
645 | { |
646 | case TT_EGREP: | |
647 | case TT_NEGREP: | |
1f414ac4 BK |
648 | /* You might consider putting the following under #ifdef. |
649 | The number of re's used is computed by autogen. | |
650 | So, it is static and known at compile time. */ | |
651 | ||
652 | if (--re_ct < 0) | |
0083c904 BK |
653 | { |
654 | fputs ("out of RE's\n", stderr); | |
655 | exit (EXIT_FAILURE); | |
656 | } | |
657 | ||
1f414ac4 | 658 | p_test->p_test_regex = p_re++; |
b51207a4 ZW |
659 | compile_re (p_test->pz_test_text, p_test->p_test_regex, 0, |
660 | "select test", p_fixd->fix_name); | |
661 | } | |
1f414ac4 | 662 | p_test++; |
0083c904 BK |
663 | } |
664 | } | |
1f414ac4 | 665 | while (p_fixd++, --fix_ct > 0); |
0083c904 BK |
666 | } |
667 | ||
668 | ||
1f414ac4 | 669 | /* * * * * * * * * * * * * |
5abc1f74 | 670 | |
1f414ac4 BK |
671 | create_file Create the output modified file. |
672 | Input: the name of the file to create | |
673 | Returns: a file pointer to the new, open file */ | |
674 | ||
063174ee BK |
675 | #if defined(S_IRUSR) && defined(S_IWUSR) && \ |
676 | defined(S_IRGRP) && defined(S_IROTH) | |
677 | ||
678 | # define S_IRALL (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) | |
679 | #else | |
680 | # define S_IRALL 0644 | |
681 | #endif | |
682 | ||
683 | #if defined(S_IRWXU) && defined(S_IRGRP) && defined(S_IXGRP) && \ | |
684 | defined(S_IROTH) && defined(S_IXOTH) | |
685 | ||
686 | # define S_DIRALL (S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) | |
687 | #else | |
688 | # define S_DIRALL 0755 | |
689 | #endif | |
690 | ||
1f414ac4 | 691 | |
0083c904 | 692 | FILE * |
5abc1f74 | 693 | create_file () |
0083c904 BK |
694 | { |
695 | int fd; | |
696 | FILE *pf; | |
697 | char fname[MAXPATHLEN]; | |
698 | ||
5abc1f74 | 699 | sprintf (fname, "%s/%s", pz_dest_dir, pz_curr_file + find_base_len); |
0083c904 | 700 | |
1f414ac4 | 701 | fd = open (fname, O_WRONLY | O_CREAT | O_TRUNC, S_IRALL); |
0083c904 | 702 | |
1f414ac4 | 703 | /* We may need to create the directories needed... */ |
0083c904 BK |
704 | if ((fd < 0) && (errno == ENOENT)) |
705 | { | |
1f414ac4 | 706 | char *pz_dir = strchr (fname + 1, '/'); |
0083c904 BK |
707 | struct stat stbf; |
708 | ||
1f414ac4 | 709 | while (pz_dir != (char *) NULL) |
0083c904 | 710 | { |
1f414ac4 | 711 | *pz_dir = NUL; |
0083c904 BK |
712 | if (stat (fname, &stbf) < 0) |
713 | { | |
063174ee | 714 | mkdir (fname, S_IFDIR | S_DIRALL); |
0083c904 BK |
715 | } |
716 | ||
1f414ac4 BK |
717 | *pz_dir = '/'; |
718 | pz_dir = strchr (pz_dir + 1, '/'); | |
0083c904 | 719 | } |
1f414ac4 BK |
720 | |
721 | /* Now, lets try the open again... */ | |
722 | fd = open (fname, O_WRONLY | O_CREAT | O_TRUNC, S_IRALL); | |
0083c904 BK |
723 | } |
724 | if (fd < 0) | |
725 | { | |
726 | fprintf (stderr, "Error %d (%s) creating %s\n", | |
727 | errno, strerror (errno), fname); | |
728 | exit (EXIT_FAILURE); | |
729 | } | |
b35926b9 BK |
730 | if (NOT_SILENT) |
731 | fprintf (stderr, "Fixed: %s\n", pz_curr_file); | |
0083c904 BK |
732 | pf = fdopen (fd, "w"); |
733 | ||
734 | #ifdef LATER | |
735 | { | |
1f414ac4 BK |
736 | static const char hdr[] = |
737 | "/* DO NOT EDIT THIS FILE.\n\n" | |
738 | " It has been auto-edited by fixincludes from /usr/include/%s\n" | |
739 | " This had to be done to correct non-standard usages in the\n" | |
740 | " original, manufacturer supplied header file. */\n\n"; | |
741 | ||
5abc1f74 | 742 | fprintf (pf, hdr, pz_curr_file); |
0083c904 BK |
743 | } |
744 | #endif | |
745 | return pf; | |
746 | } | |
747 | ||
0083c904 | 748 | |
1f414ac4 | 749 | /* * * * * * * * * * * * * |
0083c904 | 750 | |
1f414ac4 BK |
751 | test_test make sure a shell-style test expression passes. |
752 | Input: a pointer to the descriptor of the test to run and | |
753 | the name of the file that we might want to fix | |
5abc1f74 | 754 | Result: APPLY_FIX or SKIP_FIX, depending on the result of the |
1f414ac4 BK |
755 | shell script we run. */ |
756 | ||
5abc1f74 BK |
757 | int |
758 | test_test (p_test, pz_test_file) | |
1f414ac4 | 759 | tTestDesc *p_test; |
5abc1f74 | 760 | char* pz_test_file; |
1f414ac4 | 761 | { |
94db2f71 BK |
762 | tSCC cmd_fmt[] = |
763 | "file=%s\n\ | |
764 | if ( test %s ) > /dev/null 2>&1\n\ | |
765 | then echo TRUE\n\ | |
766 | else echo FALSE\n\ | |
767 | fi"; | |
768 | ||
1f414ac4 | 769 | char *pz_res; |
5abc1f74 | 770 | int res = SKIP_FIX; |
1f414ac4 BK |
771 | |
772 | static char cmd_buf[4096]; | |
1f414ac4 | 773 | |
5abc1f74 | 774 | sprintf (cmd_buf, cmd_fmt, pz_test_file, p_test->pz_test_text); |
1f414ac4 BK |
775 | pz_res = run_shell (cmd_buf); |
776 | if (*pz_res == 'T') | |
5abc1f74 | 777 | res = APPLY_FIX; |
1f414ac4 | 778 | free ((void *) pz_res); |
0083c904 BK |
779 | return res; |
780 | } | |
781 | ||
782 | ||
1f414ac4 | 783 | /* * * * * * * * * * * * * |
5abc1f74 | 784 | |
1f414ac4 BK |
785 | egrep_test make sure an egrep expression is found in the file text. |
786 | Input: a pointer to the descriptor of the test to run and | |
787 | the pointer to the contents of the file under suspicion | |
5abc1f74 | 788 | Result: APPLY_FIX if the pattern is found, SKIP_FIX otherwise |
1f414ac4 | 789 | |
5abc1f74 | 790 | The caller may choose to reverse meaning if the sense of the test |
1f414ac4 BK |
791 | is inverted. */ |
792 | ||
5abc1f74 | 793 | int |
1f414ac4 BK |
794 | egrep_test (pz_data, p_test) |
795 | char *pz_data; | |
796 | tTestDesc *p_test; | |
0083c904 | 797 | { |
5abc1f74 | 798 | #ifdef DEBUG |
1f414ac4 BK |
799 | if (p_test->p_test_regex == 0) |
800 | fprintf (stderr, "fixincl ERROR RE not compiled: `%s'\n", | |
801 | p_test->pz_test_text); | |
0083c904 | 802 | #endif |
b51207a4 | 803 | if (regexec (p_test->p_test_regex, pz_data, 0, 0, 0) == 0) |
5abc1f74 BK |
804 | return APPLY_FIX; |
805 | return SKIP_FIX; | |
0083c904 BK |
806 | } |
807 | ||
808 | ||
94db2f71 BK |
809 | /* * * * * * * * * * * * * |
810 | ||
811 | quoted_file_exists Make sure that a file exists before we emit | |
812 | the file name. If we emit the name, our invoking shell will try | |
813 | to copy a non-existing file into the destination directory. */ | |
814 | ||
815 | int | |
816 | quoted_file_exists (pz_src_path, pz_file_path, pz_file) | |
817 | char* pz_src_path; | |
818 | char* pz_file_path; | |
819 | char* pz_file; | |
820 | { | |
821 | char z[ MAXPATHLEN ]; | |
822 | char* pz; | |
823 | sprintf (z, "%s/%s/", pz_src_path, pz_file_path); | |
824 | pz = z + strlen ( z ); | |
825 | ||
826 | for (;;) { | |
827 | char ch = *pz_file++; | |
5abc1f74 | 828 | if (! ISGRAPH( ch )) |
94db2f71 BK |
829 | return 0; |
830 | if (ch == '"') | |
831 | break; | |
832 | *pz++ = ch; | |
833 | } | |
834 | *pz = '\0'; | |
835 | { | |
836 | struct stat s; | |
837 | if (stat (z, &s) != 0) | |
838 | return 0; | |
839 | return S_ISREG( s.st_mode ); | |
840 | } | |
841 | } | |
842 | ||
843 | ||
1f414ac4 BK |
844 | /* * * * * * * * * * * * * |
845 | * | |
846 | extract_quoted_files | |
5abc1f74 | 847 | |
1f414ac4 BK |
848 | The syntax, `#include "file.h"' specifies that the compiler is to |
849 | search the local directory of the current file before the include | |
850 | list. Consequently, if we have modified a header and stored it in | |
851 | another directory, any files that are included by that modified | |
852 | file in that fashion must also be copied into this new directory. | |
853 | This routine finds those flavors of #include and for each one found | |
854 | emits a triple of: | |
5abc1f74 | 855 | |
1f414ac4 BK |
856 | 1. source directory of the original file |
857 | 2. the relative path file name of the #includ-ed file | |
858 | 3. the full destination path for this file | |
859 | ||
860 | Input: the text of the file, the file name and a pointer to the | |
861 | match list where the match information was stored. | |
862 | Result: internally nothing. The results are written to stdout | |
863 | for interpretation by the invoking shell */ | |
0083c904 | 864 | |
94db2f71 | 865 | |
0083c904 | 866 | void |
5abc1f74 | 867 | extract_quoted_files (pz_data, pz_fixed_file, p_re_match) |
1f414ac4 | 868 | char *pz_data; |
5abc1f74 | 869 | const char *pz_fixed_file; |
1f414ac4 | 870 | regmatch_t *p_re_match; |
0083c904 | 871 | { |
5abc1f74 | 872 | char *pz_dir_end = strrchr (pz_fixed_file, '/'); |
1f414ac4 | 873 | char *pz_incl_quot = pz_data; |
0083c904 | 874 | |
b35926b9 BK |
875 | if (VLEVEL( VERB_APPLIES )) |
876 | fprintf (stderr, "Quoted includes in %s\n", pz_fixed_file); | |
0083c904 | 877 | |
5abc1f74 | 878 | /* Set "pz_fixed_file" to point to the containing subdirectory of the source |
94db2f71 | 879 | If there is none, then it is in our current directory, ".". */ |
1f414ac4 BK |
880 | |
881 | if (pz_dir_end == (char *) NULL) | |
5abc1f74 | 882 | pz_fixed_file = "."; |
0083c904 | 883 | else |
1f414ac4 | 884 | *pz_dir_end = '\0'; |
0083c904 BK |
885 | |
886 | for (;;) | |
887 | { | |
1f414ac4 BK |
888 | pz_incl_quot += p_re_match->rm_so; |
889 | ||
890 | /* Skip forward to the included file name */ | |
92a438d1 | 891 | while (ISSPACE (*pz_incl_quot)) |
1f414ac4 | 892 | pz_incl_quot++; |
92a438d1 | 893 | /* ISSPACE() may evaluate is argument more than once! */ |
5abc1f74 | 894 | while (++pz_incl_quot, ISSPACE (*pz_incl_quot)) |
1f414ac4 BK |
895 | ; |
896 | pz_incl_quot += sizeof ("include") - 1; | |
897 | while (*pz_incl_quot++ != '"') | |
898 | ; | |
899 | ||
5abc1f74 | 900 | if (quoted_file_exists (pz_src_dir, pz_fixed_file, pz_incl_quot)) |
94db2f71 BK |
901 | { |
902 | /* Print the source directory and the subdirectory | |
903 | of the file in question. */ | |
5abc1f74 | 904 | printf ("%s %s/", pz_src_dir, pz_fixed_file); |
94db2f71 BK |
905 | pz_dir_end = pz_incl_quot; |
906 | ||
907 | /* Append to the directory the relative path of the desired file */ | |
908 | while (*pz_incl_quot != '"') | |
909 | putc (*pz_incl_quot++, stdout); | |
910 | ||
911 | /* Now print the destination directory appended with the | |
912 | relative path of the desired file */ | |
5abc1f74 | 913 | printf (" %s/%s/", pz_dest_dir, pz_fixed_file); |
94db2f71 BK |
914 | while (*pz_dir_end != '"') |
915 | putc (*pz_dir_end++, stdout); | |
916 | ||
917 | /* End of entry */ | |
918 | putc ('\n', stdout); | |
919 | } | |
0083c904 | 920 | |
1f414ac4 BK |
921 | /* Find the next entry */ |
922 | if (regexec (&incl_quote_re, pz_incl_quot, 1, p_re_match, 0) != 0) | |
0083c904 BK |
923 | break; |
924 | } | |
925 | } | |
926 | ||
927 | ||
5abc1f74 BK |
928 | /* * * * * * * * * * * * * |
929 | ||
930 | Somebody wrote a *_fix subroutine that we must call. | |
931 | */ | |
932 | ||
933 | int | |
934 | internal_fix (read_fd, p_fixd) | |
935 | int read_fd; | |
936 | tFixDesc* p_fixd; | |
937 | { | |
938 | int fd[2]; | |
939 | ||
940 | if (pipe( fd ) != 0) | |
941 | { | |
942 | fprintf (stderr, "Error %d on pipe(2) call\n", errno ); | |
943 | exit (EXIT_FAILURE); | |
944 | } | |
945 | ||
946 | for (;;) | |
947 | { | |
948 | pid_t childid = fork(); | |
949 | ||
950 | switch (childid) | |
951 | { | |
952 | case -1: | |
953 | break; | |
954 | ||
955 | case 0: | |
956 | close (fd[0]); | |
957 | goto do_child_task; | |
958 | ||
959 | default: | |
960 | /* | |
961 | * Parent process | |
962 | */ | |
963 | close (read_fd); | |
964 | close (fd[1]); | |
965 | return fd[0]; | |
966 | } | |
967 | ||
968 | /* | |
969 | * Parent in error | |
970 | */ | |
971 | fprintf (stderr, z_fork_err, errno, strerror (errno), | |
972 | p_fixd->fix_name); | |
973 | { | |
974 | static int failCt = 0; | |
975 | if ((errno != EAGAIN) || (++failCt > 10)) | |
976 | exit (EXIT_FAILURE); | |
977 | sleep (1); | |
978 | } | |
979 | } do_child_task:; | |
980 | ||
981 | /* | |
982 | * Close our current stdin and stdout | |
983 | */ | |
984 | close (STDIN_FILENO); | |
985 | close (STDOUT_FILENO); | |
986 | UNLOAD_DATA(); | |
987 | ||
988 | /* | |
989 | * Make the fd passed in the stdin, and the write end of | |
990 | * the new pipe become the stdout. | |
991 | */ | |
992 | fcntl (fd[1], F_DUPFD, STDOUT_FILENO); | |
993 | fcntl (read_fd, F_DUPFD, STDIN_FILENO); | |
994 | fdopen (STDIN_FILENO, "r"); | |
995 | fdopen (STDOUT_FILENO, "w"); | |
996 | ||
997 | apply_fix (p_fixd->patch_args[0], pz_curr_file); | |
998 | exit (0); | |
999 | } | |
1000 | ||
bb786201 BK |
1001 | |
1002 | /* * * * * * * * * * * * * | |
1003 | ||
1004 | This loop should only cycle for 1/2 of one loop. | |
1005 | "chain_open" starts a process that uses "read_fd" as | |
1006 | its stdin and returns the new fd this process will use | |
1007 | for stdout. */ | |
1008 | ||
1009 | int | |
5abc1f74 | 1010 | start_fixer (read_fd, p_fixd, pz_fix_file) |
bb786201 BK |
1011 | int read_fd; |
1012 | tFixDesc* p_fixd; | |
5abc1f74 | 1013 | char* pz_fix_file; |
bb786201 | 1014 | { |
bb786201 BK |
1015 | tCC* pz_cmd_save; |
1016 | char* pz_cmd; | |
1017 | ||
5abc1f74 BK |
1018 | if ((p_fixd->fd_flags & FD_SUBROUTINE) != 0) |
1019 | return internal_fix (read_fd, p_fixd); | |
1020 | ||
bb786201 BK |
1021 | if ((p_fixd->fd_flags & FD_SHELL_SCRIPT) == 0) |
1022 | pz_cmd = (char*)NULL; | |
1023 | else | |
1024 | { | |
1025 | tSCC z_cmd_fmt[] = "file='%s'\n%s"; | |
5abc1f74 | 1026 | pz_cmd = (char*)malloc (strlen (p_fixd->patch_args[2]) |
bb786201 | 1027 | + sizeof( z_cmd_fmt ) |
5abc1f74 BK |
1028 | + strlen( pz_fix_file )); |
1029 | if (pz_cmd == (char*)NULL) | |
1030 | { | |
1031 | fputs ("allocation failure\n", stderr); | |
1032 | exit (EXIT_FAILURE); | |
1033 | } | |
1034 | sprintf (pz_cmd, z_cmd_fmt, pz_fix_file, p_fixd->patch_args[2]); | |
bb786201 BK |
1035 | pz_cmd_save = p_fixd->patch_args[2]; |
1036 | p_fixd->patch_args[2] = pz_cmd; | |
1037 | } | |
1038 | ||
b35926b9 BK |
1039 | /* Start a fix process, handing off the previous read fd for its |
1040 | stdin and getting a new fd that reads from the fix process' stdout. | |
1041 | We normally will not loop, but we will up to 10 times if we keep | |
1042 | getting "EAGAIN" errors. | |
1043 | ||
1044 | */ | |
bb786201 BK |
1045 | for (;;) |
1046 | { | |
1047 | static int failCt = 0; | |
1048 | int fd; | |
1049 | ||
1050 | fd = chain_open (read_fd, | |
1051 | (t_pchar *) p_fixd->patch_args, | |
1052 | (process_chain_head == -1) | |
1053 | ? &process_chain_head : (pid_t *) NULL); | |
1054 | ||
1055 | if (fd != -1) | |
1056 | { | |
1057 | read_fd = fd; | |
1058 | break; | |
1059 | } | |
1060 | ||
5abc1f74 | 1061 | fprintf (stderr, z_fork_err, errno, strerror (errno), |
bb786201 BK |
1062 | p_fixd->fix_name); |
1063 | ||
1064 | if ((errno != EAGAIN) || (++failCt > 10)) | |
1065 | exit (EXIT_FAILURE); | |
1066 | sleep (1); | |
1067 | } | |
1068 | ||
b35926b9 BK |
1069 | /* IF we allocated a shell script command, |
1070 | THEN free it and restore the command format to the fix description */ | |
bb786201 BK |
1071 | if (pz_cmd != (char*)NULL) |
1072 | { | |
1073 | free ((void*)pz_cmd); | |
1074 | p_fixd->patch_args[2] = pz_cmd_save; | |
1075 | } | |
1076 | ||
1077 | return read_fd; | |
1078 | } | |
1079 | ||
5abc1f74 | 1080 | |
1f414ac4 BK |
1081 | /* * * * * * * * * * * * * |
1082 | ||
1083 | Process the potential fixes for a particular include file. | |
1084 | Input: the original text of the file and the file's name | |
1085 | Result: none. A new file may or may not be created. */ | |
1086 | ||
5abc1f74 BK |
1087 | t_bool |
1088 | fix_applies (p_fixd) | |
1089 | tFixDesc *p_fixd; | |
0083c904 | 1090 | { |
b35926b9 BK |
1091 | #ifdef DEBUG |
1092 | static const char z_failed[] = "not applying %s to %s - test %d failed\n"; | |
1093 | #endif | |
ae5c839b ZW |
1094 | const char *pz_fname = pz_curr_file; |
1095 | const char *pz_scan = p_fixd->file_list; | |
5abc1f74 BK |
1096 | int test_ct; |
1097 | tTestDesc *p_test; | |
0083c904 | 1098 | |
5abc1f74 BK |
1099 | if (p_fixd->fd_flags & FD_SKIP_TEST) |
1100 | return BOOL_FALSE; | |
0083c904 | 1101 | |
5abc1f74 BK |
1102 | /* IF there is a file name restriction, |
1103 | THEN ensure the current file name matches one in the pattern */ | |
1104 | ||
ae5c839b | 1105 | if (pz_scan != (char *) NULL) |
5abc1f74 | 1106 | { |
5abc1f74 | 1107 | size_t name_len; |
0083c904 | 1108 | |
5abc1f74 BK |
1109 | while ((pz_fname[0] == '.') && (pz_fname[1] == '/')) |
1110 | pz_fname += 2; | |
1111 | name_len = strlen (pz_fname); | |
1f414ac4 | 1112 | |
5abc1f74 | 1113 | for (;;) |
0083c904 | 1114 | { |
5abc1f74 BK |
1115 | pz_scan = strstr (pz_scan + 1, pz_fname); |
1116 | /* IF we can't match the string at all, | |
1117 | THEN bail */ | |
b35926b9 BK |
1118 | if (pz_scan == (char *) NULL) { |
1119 | #ifdef DEBUG | |
1120 | if (VLEVEL( VERB_EVERYTHING )) | |
1121 | fprintf (stderr, "file %s not in list for %s\n", | |
1122 | pz_fname, p_fixd->fix_name ); | |
1123 | #endif | |
5abc1f74 | 1124 | return BOOL_FALSE; |
b35926b9 | 1125 | } |
0083c904 | 1126 | |
5abc1f74 BK |
1127 | /* IF the match is surrounded by the '|' markers, |
1128 | THEN we found a full match -- time to run the tests */ | |
0083c904 | 1129 | |
5abc1f74 BK |
1130 | if ((pz_scan[-1] == '|') && (pz_scan[name_len] == '|')) |
1131 | break; | |
1132 | } | |
1133 | } | |
0083c904 | 1134 | |
5abc1f74 BK |
1135 | /* FOR each test, see if it fails. |
1136 | IF it does fail, then we go on to the next test */ | |
1f414ac4 | 1137 | |
5abc1f74 BK |
1138 | for (p_test = p_fixd->p_test_desc, test_ct = p_fixd->test_ct; |
1139 | test_ct-- > 0; | |
1140 | p_test++) | |
1141 | { | |
1142 | switch (p_test->type) | |
1143 | { | |
1144 | case TT_TEST: | |
b35926b9 BK |
1145 | if (test_test (p_test, pz_curr_file) != APPLY_FIX) { |
1146 | #ifdef DEBUG | |
1147 | if (VLEVEL( VERB_EVERYTHING )) | |
1148 | fprintf (stderr, z_failed, p_fixd->fix_name, pz_fname, | |
1149 | p_fixd->test_ct - test_ct); | |
1150 | #endif | |
5abc1f74 | 1151 | return BOOL_FALSE; |
b35926b9 | 1152 | } |
5abc1f74 BK |
1153 | break; |
1154 | ||
1155 | case TT_EGREP: | |
b35926b9 BK |
1156 | if (egrep_test (pz_curr_data, p_test) != APPLY_FIX) { |
1157 | #ifdef DEBUG | |
1158 | if (VLEVEL( VERB_EVERYTHING )) | |
1159 | fprintf (stderr, z_failed, p_fixd->fix_name, pz_fname, | |
1160 | p_fixd->test_ct - test_ct); | |
1161 | #endif | |
5abc1f74 | 1162 | return BOOL_FALSE; |
b35926b9 | 1163 | } |
5abc1f74 BK |
1164 | break; |
1165 | ||
1166 | case TT_NEGREP: | |
b35926b9 BK |
1167 | if (egrep_test (pz_curr_data, p_test) == APPLY_FIX) { |
1168 | #ifdef DEBUG | |
1169 | if (VLEVEL( VERB_EVERYTHING )) | |
1170 | fprintf (stderr, z_failed, p_fixd->fix_name, pz_fname, | |
1171 | p_fixd->test_ct - test_ct); | |
1172 | #endif | |
5abc1f74 BK |
1173 | /* Negated sense */ |
1174 | return BOOL_FALSE; | |
b35926b9 | 1175 | } |
5abc1f74 BK |
1176 | break; |
1177 | ||
1178 | case TT_FUNCTION: | |
1179 | if (run_test (p_test->pz_test_text, pz_curr_file, pz_curr_data) | |
b35926b9 BK |
1180 | != APPLY_FIX) { |
1181 | #ifdef DEBUG | |
1182 | if (VLEVEL( VERB_EVERYTHING )) | |
1183 | fprintf (stderr, z_failed, p_fixd->fix_name, pz_fname, | |
1184 | p_fixd->test_ct - test_ct); | |
1185 | #endif | |
5abc1f74 | 1186 | return BOOL_FALSE; |
b35926b9 | 1187 | } |
5abc1f74 | 1188 | break; |
0083c904 | 1189 | } |
5abc1f74 | 1190 | } |
0083c904 | 1191 | |
5abc1f74 BK |
1192 | return BOOL_TRUE; |
1193 | } | |
0083c904 | 1194 | |
0083c904 | 1195 | |
5abc1f74 BK |
1196 | /* * * * * * * * * * * * * |
1197 | ||
1198 | Write out a replacement file */ | |
1199 | ||
1200 | void | |
1201 | write_replacement (p_fixd) | |
1202 | tFixDesc *p_fixd; | |
1203 | { | |
1204 | const char* pz_text = p_fixd->patch_args[0]; | |
1205 | ||
1206 | if ((pz_text == (char*)NULL) || (*pz_text == NUL)) | |
1207 | return; | |
1208 | ||
1209 | { | |
1210 | FILE* out_fp = create_file (pz_curr_file); | |
1211 | fputs (pz_text, out_fp); | |
1212 | fclose (out_fp); | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | ||
1217 | /* * * * * * * * * * * * * | |
1218 | ||
1219 | We have work to do. Read back in the output | |
1220 | of the filtering chain. Compare each byte as we read it with | |
1221 | the contents of the original file. As soon as we find any | |
1222 | difference, we will create the output file, write out all | |
1223 | the matched text and then copy any remaining data from the | |
1224 | output of the filter chain. | |
1225 | */ | |
1226 | void | |
1227 | test_for_changes (read_fd) | |
1228 | int read_fd; | |
1229 | { | |
1230 | FILE *in_fp = fdopen (read_fd, "r"); | |
1231 | FILE *out_fp = (FILE *) NULL; | |
1232 | char *pz_cmp = pz_curr_data; | |
1233 | ||
1234 | #ifdef DO_STATS | |
1235 | fixed_ct++; | |
1f414ac4 | 1236 | #endif |
5abc1f74 BK |
1237 | for (;;) |
1238 | { | |
1239 | int ch; | |
0083c904 | 1240 | |
5abc1f74 BK |
1241 | ch = getc (in_fp); |
1242 | if (ch == EOF) | |
1243 | break; | |
1244 | ||
1245 | /* IF we are emitting the output | |
1246 | THEN emit this character, too. | |
1247 | */ | |
1248 | if (out_fp != (FILE *) NULL) | |
1249 | putc (ch, out_fp); | |
1250 | ||
1251 | /* ELSE if this character does not match the original, | |
1252 | THEN now is the time to start the output. | |
1253 | */ | |
1254 | else if (ch != *pz_cmp) | |
1255 | { | |
1256 | out_fp = create_file (pz_curr_file); | |
1257 | ||
1258 | #ifdef DO_STATS | |
1259 | altered_ct++; | |
1f414ac4 | 1260 | #endif |
5abc1f74 BK |
1261 | /* IF there are matched data, write the matched part now. */ |
1262 | if (pz_cmp != pz_curr_data) | |
1263 | fwrite (pz_curr_data, (size_t)(pz_cmp - pz_curr_data), 1, out_fp); | |
1264 | ||
1265 | /* Emit the current unmatching character */ | |
1266 | putc (ch, out_fp); | |
0083c904 | 1267 | } |
5abc1f74 BK |
1268 | else |
1269 | /* ELSE the character matches. Advance the compare ptr */ | |
1270 | pz_cmp++; | |
1271 | } | |
1272 | ||
1273 | /* IF we created the output file, ... */ | |
1274 | if (out_fp != (FILE *) NULL) | |
1275 | { | |
1276 | regmatch_t match; | |
1277 | ||
1278 | /* Close the file and see if we have to worry about | |
1279 | `#include "file.h"' constructs. */ | |
1280 | fclose (out_fp); | |
1281 | if (regexec (&incl_quote_re, pz_curr_data, 1, &match, 0) == 0) | |
1282 | extract_quoted_files (pz_curr_data, pz_curr_file, &match); | |
1283 | } | |
1284 | ||
1285 | fclose (in_fp); | |
1286 | close (read_fd); /* probably redundant, but I'm paranoid */ | |
1287 | } | |
1288 | ||
1289 | ||
1290 | /* * * * * * * * * * * * * | |
1291 | ||
1292 | Process the potential fixes for a particular include file. | |
1293 | Input: the original text of the file and the file's name | |
1294 | Result: none. A new file may or may not be created. */ | |
1295 | ||
1296 | void | |
1297 | process () | |
1298 | { | |
1299 | static char env_current_file[1024]; | |
1300 | tFixDesc *p_fixd = fixDescList; | |
1301 | int todo_ct = FIX_COUNT; | |
1302 | int read_fd = -1; | |
1303 | int num_children = 0; | |
1304 | ||
1305 | if (access (pz_curr_file, R_OK) != 0) | |
1306 | { | |
1307 | int erno = errno; | |
1308 | fprintf (stderr, "Cannot access %s from %s\n\terror %d (%s)\n", | |
1309 | pz_curr_file, getcwd ((char *) NULL, MAXPATHLEN), | |
1310 | erno, strerror (erno)); | |
1311 | return; | |
1312 | } | |
1313 | ||
1314 | pz_curr_data = load_file (pz_curr_file); | |
1315 | if (pz_curr_data == (char *) NULL) | |
1316 | return; | |
1317 | ||
1318 | #ifdef DO_STATS | |
1319 | process_ct++; | |
1320 | #endif | |
d7eb5a45 | 1321 | if (VLEVEL( VERB_PROGRESS ) && have_tty) |
b35926b9 | 1322 | fprintf (stderr, "%6d %-50s \r", data_map_size, pz_curr_file ); |
5abc1f74 BK |
1323 | |
1324 | process_chain_head = NOPROCESS; | |
1325 | ||
1326 | /* For every fix in our fix list, ... */ | |
1327 | for (; todo_ct > 0; p_fixd++, todo_ct--) | |
1328 | { | |
1329 | if (! fix_applies (p_fixd)) | |
1330 | continue; | |
0083c904 | 1331 | |
b35926b9 BK |
1332 | if (VLEVEL( VERB_APPLIES )) |
1333 | fprintf (stderr, "Applying %-24s to %s\n", | |
1334 | p_fixd->fix_name, pz_curr_file); | |
5abc1f74 BK |
1335 | |
1336 | if (p_fixd->fd_flags & FD_REPLACEMENT) | |
1337 | { | |
1338 | write_replacement (p_fixd); | |
1339 | UNLOAD_DATA(); | |
1340 | return; | |
1341 | } | |
1f414ac4 BK |
1342 | |
1343 | /* IF we do not have a read pointer, | |
1344 | THEN this is the first fix for the current file. | |
1345 | Open the source file. That will be used as stdin for | |
1346 | the first fix. Any subsequent fixes will use the | |
5abc1f74 | 1347 | stdout descriptor of the previous fix for its stdin. */ |
0083c904 | 1348 | |
48ac9ce2 | 1349 | if (read_fd == -1) |
1f414ac4 | 1350 | { |
5abc1f74 | 1351 | read_fd = open (pz_curr_file, O_RDONLY); |
48ac9ce2 | 1352 | if (read_fd < 0) |
0083c904 | 1353 | { |
1f414ac4 | 1354 | fprintf (stderr, "Error %d (%s) opening %s\n", errno, |
5abc1f74 | 1355 | strerror (errno), pz_curr_file); |
1f414ac4 | 1356 | exit (EXIT_FAILURE); |
0083c904 | 1357 | } |
5abc1f74 BK |
1358 | |
1359 | /* Ensure we do not get duplicate output */ | |
1360 | ||
1361 | fflush (stdout); | |
1f414ac4 | 1362 | } |
0083c904 | 1363 | |
5abc1f74 | 1364 | read_fd = start_fixer (read_fd, p_fixd, pz_curr_file); |
bb786201 | 1365 | num_children++; |
0083c904 BK |
1366 | } |
1367 | ||
5abc1f74 BK |
1368 | /* IF we have a read-back file descriptor, |
1369 | THEN check for changes and write output if changed. */ | |
1f414ac4 | 1370 | |
5abc1f74 BK |
1371 | if (read_fd >= 0) |
1372 | { | |
1373 | test_for_changes (read_fd); | |
1374 | #ifdef DO_STATS | |
1375 | apply_ct += num_children; | |
1376 | #endif | |
1377 | /* Wait for child processes created by chain_open() | |
1378 | to avoid leaving zombies. */ | |
1379 | do { | |
1380 | wait ((int *) NULL); | |
1381 | } while (--num_children > 0); | |
1382 | } | |
9f8eec39 | 1383 | |
5abc1f74 | 1384 | UNLOAD_DATA(); |
0083c904 | 1385 | } |