]>
Commit | Line | Data |
---|---|---|
6bd06916 | 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 | |
fef0883b | 3 | directory that GCC will search. |
6bd06916 | 4 | |
d9d1501a | 5 | Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. |
6bd06916 | 6 | |
fef0883b | 7 | This file is part of GCC. |
6bd06916 | 8 | |
fef0883b | 9 | GCC is free software; you can redistribute it and/or modify |
6bd06916 | 10 | it under the terms of the GNU General Public License as published by |
11 | the Free Software Foundation; either version 2, or (at your option) | |
12 | any later version. | |
13 | ||
fef0883b | 14 | GCC is distributed in the hope that it will be useful, |
6bd06916 | 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
fef0883b | 20 | along with GCC; see the file COPYING. If not, write to |
6bd06916 | 21 | the Free Software Foundation, 59 Temple Place - Suite 330, |
22 | Boston, MA 02111-1307, USA. */ | |
23 | ||
5daf7ede | 24 | #include "fixlib.h" |
25 | ||
f3329af2 | 26 | #if defined( HAVE_MMAP_FILE ) |
d940655c | 27 | #include <sys/mman.h> |
28 | #define BAD_ADDR ((void*)-1) | |
29 | #endif | |
6bd06916 | 30 | |
6b917287 | 31 | #if ! defined( SIGCHLD ) && defined( SIGCLD ) |
32 | # define SIGCHLD SIGCLD | |
33 | #endif | |
d3aacc3b | 34 | #ifndef SEPARATE_FIX_PROC |
6274714d | 35 | #include "server.h" |
70ba55fd | 36 | #endif |
6274714d | 37 | |
5daf7ede | 38 | /* The contents of this string are not very important. It is mostly |
39 | just used as part of the "I am alive and working" test. */ | |
6274714d | 40 | |
5daf7ede | 41 | static const char program_id[] = "fixincl version 1.1"; |
6274714d | 42 | |
cc42f3d4 | 43 | /* This format will be used at the start of every generated file */ |
44 | ||
45 | static const char z_std_preamble[] = | |
46 | "/* DO NOT EDIT THIS FILE.\n\n\ | |
47 | It has been auto-edited by fixincludes from:\n\n\ | |
48 | \t\"%s/%s\"\n\n\ | |
49 | This had to be done to correct non-standard usages in the\n\ | |
50 | original, manufacturer supplied header file. */\n\n"; | |
51 | ||
6bd06916 | 52 | /* Working environment strings. Essentially, invocation 'options'. */ |
cc42f3d4 | 53 | |
54 | #define _ENV_(v,m,n,t) tCC* v = NULL; | |
55 | ENV_TABLE | |
56 | #undef _ENV_ | |
57 | ||
198b32f6 | 58 | int find_base_len = 0; |
6bd06916 | 59 | |
3fc31df4 | 60 | typedef enum { |
61 | VERB_SILENT = 0, | |
62 | VERB_FIXES, | |
63 | VERB_APPLIES, | |
64 | VERB_PROGRESS, | |
65 | VERB_TESTS, | |
66 | VERB_EVERYTHING | |
67 | } te_verbose; | |
68 | ||
69 | te_verbose verbose_level = VERB_PROGRESS; | |
bb304030 | 70 | int have_tty = 0; |
3fc31df4 | 71 | |
0fd4500a | 72 | #define VLEVEL(l) ((unsigned int) verbose_level >= (unsigned int) l) |
3fc31df4 | 73 | #define NOT_SILENT VLEVEL(VERB_FIXES) |
74 | ||
6bd06916 | 75 | pid_t process_chain_head = (pid_t) -1; |
76 | ||
5daf7ede | 77 | char* pz_curr_file; /* name of the current file under test/fix */ |
78 | char* pz_curr_data; /* original contents of that file */ | |
70ba55fd | 79 | char* pz_temp_file; /* for DOS, a place to stash the temporary |
80 | fixed data between system(3) calls */ | |
5daf7ede | 81 | t_bool curr_data_mapped; |
82 | int data_map_fd; | |
83 | size_t data_map_size; | |
84 | size_t ttl_data_size = 0; | |
cc42f3d4 | 85 | |
5daf7ede | 86 | #ifdef DO_STATS |
87 | int process_ct = 0; | |
88 | int apply_ct = 0; | |
89 | int fixed_ct = 0; | |
90 | int altered_ct = 0; | |
91 | #endif /* DO_STATS */ | |
92 | ||
6bd06916 | 93 | const char incl_quote_pat[] = "^[ \t]*#[ \t]*include[ \t]*\"[^/]"; |
5daf7ede | 94 | tSCC z_fork_err[] = "Error %d (%s) starting filter process for %s\n"; |
6bd06916 | 95 | regex_t incl_quote_re; |
96 | ||
a95bcb36 | 97 | static void do_version (void) ATTRIBUTE_NORETURN; |
98 | char *load_file (const char *); | |
99 | void run_compiles (void); | |
100 | void initialize (int argc, char** argv); | |
101 | void process (void); | |
5daf7ede | 102 | |
103 | /* External Source Code */ | |
6274714d | 104 | |
105 | #include "fixincl.x" | |
106 | ||
6bd06916 | 107 | /* * * * * * * * * * * * * * * * * * * |
108 | * | |
109 | * MAIN ROUTINE | |
110 | */ | |
a95bcb36 | 111 | extern int main (int, char **); |
6274714d | 112 | int |
a95bcb36 | 113 | main (int argc, char** argv) |
6274714d | 114 | { |
5daf7ede | 115 | char *file_name_buf; |
6274714d | 116 | |
09fe1d5c | 117 | initialize ( argc, argv ); |
697b45c9 | 118 | |
bb304030 | 119 | have_tty = isatty (fileno (stderr)); |
120 | ||
5daf7ede | 121 | /* Before anything else, ensure we can allocate our file name buffer. */ |
122 | file_name_buf = load_file_data (stdin); | |
123 | ||
124 | /* Because of the way server shells work, you have to keep stdin, out | |
125 | and err open so that the proper input file does not get closed | |
126 | by accident */ | |
127 | ||
128 | freopen ("/dev/null", "r", stdin); | |
129 | ||
130 | if (file_name_buf == (char *) NULL) | |
131 | { | |
132 | fputs ("No file names listed for fixing\n", stderr); | |
133 | exit (EXIT_FAILURE); | |
134 | } | |
135 | ||
697b45c9 | 136 | for (;;) |
137 | { | |
5daf7ede | 138 | char* pz_end; |
697b45c9 | 139 | |
5daf7ede | 140 | /* skip to start of name, past any "./" prefixes */ |
697b45c9 | 141 | |
5daf7ede | 142 | while (ISSPACE (*file_name_buf)) file_name_buf++; |
143 | while ((file_name_buf[0] == '.') && (file_name_buf[1] == '/')) | |
144 | file_name_buf += 2; | |
697b45c9 | 145 | |
5daf7ede | 146 | /* Check for end of list */ |
147 | ||
148 | if (*file_name_buf == NUL) | |
149 | break; | |
150 | ||
151 | /* Set global file name pointer and find end of name */ | |
152 | ||
153 | pz_curr_file = file_name_buf; | |
154 | pz_end = strchr( pz_curr_file, '\n' ); | |
155 | if (pz_end == (char*)NULL) | |
156 | pz_end = file_name_buf = pz_curr_file + strlen (pz_curr_file); | |
157 | else | |
158 | file_name_buf = pz_end + 1; | |
159 | ||
160 | while ((pz_end > pz_curr_file) && ISSPACE( pz_end[-1])) pz_end--; | |
161 | ||
162 | /* IF no name is found (blank line) or comment marker, skip line */ | |
163 | ||
164 | if ((pz_curr_file == pz_end) || (*pz_curr_file == '#')) | |
165 | continue; | |
166 | *pz_end = NUL; | |
697b45c9 | 167 | |
5daf7ede | 168 | process (); |
5daf7ede | 169 | } /* for (;;) */ |
697b45c9 | 170 | |
5daf7ede | 171 | #ifdef DO_STATS |
3fc31df4 | 172 | if (VLEVEL( VERB_PROGRESS )) { |
5daf7ede | 173 | tSCC zFmt[] = |
174 | "\ | |
175 | Processed %5d files containing %d bytes \n\ | |
176 | Applying %5d fixes to %d files\n\ | |
177 | Altering %5d of them\n"; | |
178 | ||
179 | fprintf (stderr, zFmt, process_ct, ttl_data_size, apply_ct, | |
180 | fixed_ct, altered_ct); | |
181 | } | |
182 | #endif /* DO_STATS */ | |
70ba55fd | 183 | |
d3aacc3b | 184 | # ifdef SEPARATE_FIX_PROC |
70ba55fd | 185 | unlink( pz_temp_file ); |
186 | # endif | |
e49df37d | 187 | exit (EXIT_SUCCESS); |
697b45c9 | 188 | } |
189 | ||
190 | ||
8322672c | 191 | static void |
a95bcb36 | 192 | do_version (void) |
5daf7ede | 193 | { |
194 | static const char zFmt[] = "echo '%s'"; | |
195 | char zBuf[ 1024 ]; | |
196 | ||
197 | /* The 'version' option is really used to test that: | |
198 | 1. The program loads correctly (no missing libraries) | |
09fe1d5c | 199 | 2. that we can compile all the regular expressions. |
200 | 3. we can correctly run our server shell process | |
5daf7ede | 201 | */ |
202 | run_compiles (); | |
203 | sprintf (zBuf, zFmt, program_id); | |
d3aacc3b | 204 | #ifndef SEPARATE_FIX_PROC |
85f8461a | 205 | puts (zBuf + 5); |
5daf7ede | 206 | exit (strcmp (run_shell (zBuf), program_id)); |
70ba55fd | 207 | #else |
208 | exit (system (zBuf)); | |
209 | #endif | |
5daf7ede | 210 | } |
211 | ||
697b45c9 | 212 | /* * * * * * * * * * * * */ |
213 | ||
214 | void | |
a95bcb36 | 215 | initialize ( int argc, char** argv ) |
697b45c9 | 216 | { |
217 | static const char var_not_found[] = | |
4d4aa516 | 218 | #ifndef __STDC__ |
219 | "fixincl ERROR: %s environment variable not defined\n" | |
220 | #else | |
cc42f3d4 | 221 | "fixincl ERROR: %s environment variable not defined\n" |
cc42f3d4 | 222 | "each of these must be defined:\n" |
5fb17115 | 223 | # define _ENV_(vv,mm,nn,tt) "\t" nn " - " tt "\n" |
4d4aa516 | 224 | ENV_TABLE |
225 | # undef _ENV_ | |
cc42f3d4 | 226 | #endif |
227 | ; | |
697b45c9 | 228 | |
7cd86c4d | 229 | xmalloc_set_program_name (argv[0]); |
230 | ||
09fe1d5c | 231 | switch (argc) |
232 | { | |
233 | case 1: | |
234 | break; | |
235 | ||
236 | case 2: | |
237 | if (strcmp (argv[1], "-v") == 0) | |
238 | do_version (); | |
239 | if (freopen (argv[1], "r", stdin) == (FILE*)NULL) | |
240 | { | |
241 | fprintf (stderr, "Error %d (%s) reopening %s as stdin\n", | |
242 | errno, xstrerror (errno), argv[1] ); | |
243 | exit (EXIT_FAILURE); | |
244 | } | |
245 | break; | |
246 | ||
247 | default: | |
248 | fputs ("fixincl ERROR: too many command line arguments\n", stderr); | |
249 | exit (EXIT_FAILURE); | |
250 | } | |
251 | ||
6b917287 | 252 | #ifdef SIGCHLD |
253 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
254 | receive the signal. A different setting is inheritable */ | |
255 | signal (SIGCHLD, SIG_DFL); | |
256 | #endif | |
257 | ||
cc42f3d4 | 258 | #define _ENV_(v,m,n,t) { tSCC var[] = n; \ |
259 | v = getenv (var); if (m && (v == NULL)) { \ | |
260 | fprintf (stderr, var_not_found, var); \ | |
261 | exit (EXIT_FAILURE); } } | |
6274714d | 262 | |
cc42f3d4 | 263 | ENV_TABLE |
6274714d | 264 | |
cc42f3d4 | 265 | #undef _ENV_ |
6274714d | 266 | |
8322672c | 267 | if (ISDIGIT ( *pz_verbose )) |
cc42f3d4 | 268 | verbose_level = (te_verbose)atoi( pz_verbose ); |
269 | else | |
270 | switch (*pz_verbose) { | |
271 | case 's': | |
272 | case 'S': | |
273 | verbose_level = VERB_SILENT; break; | |
274 | ||
275 | case 'f': | |
276 | case 'F': | |
277 | verbose_level = VERB_FIXES; break; | |
278 | ||
279 | case 'a': | |
280 | case 'A': | |
281 | verbose_level = VERB_APPLIES; break; | |
282 | ||
4a050cc7 | 283 | default: |
cc42f3d4 | 284 | case 'p': |
285 | case 'P': | |
286 | verbose_level = VERB_PROGRESS; break; | |
287 | ||
288 | case 't': | |
289 | case 'T': | |
290 | verbose_level = VERB_TESTS; break; | |
291 | ||
292 | case 'e': | |
293 | case 'E': | |
294 | verbose_level = VERB_EVERYTHING; break; | |
295 | } | |
4a050cc7 | 296 | if (verbose_level >= VERB_EVERYTHING) { |
297 | verbose_level = VERB_EVERYTHING; | |
298 | fputs ("fixinc verbosity: EVERYTHING\n", stderr); | |
299 | } | |
300 | while ((pz_find_base[0] == '.') && (pz_find_base[1] == '/')) | |
301 | pz_find_base += 2; | |
302 | if ((pz_find_base[0] != '.') || (pz_find_base[1] != NUL)) | |
303 | find_base_len = strlen( pz_find_base ); | |
198b32f6 | 304 | |
6bd06916 | 305 | /* Compile all the regular expressions now. |
306 | That way, it is done only once for the whole run. | |
307 | */ | |
308 | run_compiles (); | |
6274714d | 309 | |
d3aacc3b | 310 | # ifdef SEPARATE_FIX_PROC |
70ba55fd | 311 | /* NULL as the first argument to `tempnam' causes it to DTRT |
312 | wrt the temporary directory where the file will be created. */ | |
313 | pz_temp_file = tempnam( NULL, "fxinc" ); | |
314 | # endif | |
315 | ||
6bd06916 | 316 | signal (SIGQUIT, SIG_IGN); |
09fe1d5c | 317 | #ifdef SIGIOT |
6bd06916 | 318 | signal (SIGIOT, SIG_IGN); |
09fe1d5c | 319 | #endif |
70ba55fd | 320 | #ifdef SIGPIPE |
6bd06916 | 321 | signal (SIGPIPE, SIG_IGN); |
70ba55fd | 322 | #endif |
6bd06916 | 323 | signal (SIGALRM, SIG_IGN); |
324 | signal (SIGTERM, SIG_IGN); | |
6274714d | 325 | } |
6274714d | 326 | |
6bd06916 | 327 | /* * * * * * * * * * * * * |
5daf7ede | 328 | |
6bd06916 | 329 | load_file loads all the contents of a file into malloc-ed memory. |
330 | Its argument is the name of the file to read in; the returned | |
331 | result is the NUL terminated contents of the file. The file | |
332 | is presumed to be an ASCII text file containing no NULs. */ | |
6274714d | 333 | char * |
a95bcb36 | 334 | load_file ( const char* fname ) |
6274714d | 335 | { |
5daf7ede | 336 | struct stat stbf; |
337 | char* res; | |
6274714d | 338 | |
5daf7ede | 339 | if (stat (fname, &stbf) != 0) |
6274714d | 340 | { |
3fc31df4 | 341 | if (NOT_SILENT) |
342 | fprintf (stderr, "error %d (%s) stat-ing %s\n", | |
58113712 | 343 | errno, xstrerror (errno), fname ); |
5daf7ede | 344 | return (char *) NULL; |
6274714d | 345 | } |
5daf7ede | 346 | if (stbf.st_size == 0) |
347 | return (char*)NULL; | |
6274714d | 348 | |
4b834650 | 349 | /* Make the data map size one larger than the file size for documentation |
350 | purposes. Truth is that there will be a following NUL character if | |
351 | the file size is not a multiple of the page size. If it is a multiple, | |
352 | then this adjustment sometimes fails anyway. */ | |
5daf7ede | 353 | data_map_size = stbf.st_size+1; |
354 | data_map_fd = open (fname, O_RDONLY); | |
355 | ttl_data_size += data_map_size-1; | |
6274714d | 356 | |
5daf7ede | 357 | if (data_map_fd < 0) |
358 | { | |
3fc31df4 | 359 | if (NOT_SILENT) |
360 | fprintf (stderr, "error %d (%s) opening %s for read\n", | |
58113712 | 361 | errno, xstrerror (errno), fname); |
5daf7ede | 362 | return (char*)NULL; |
363 | } | |
6274714d | 364 | |
39af12e5 | 365 | #ifdef HAVE_MMAP_FILE |
5daf7ede | 366 | curr_data_mapped = BOOL_TRUE; |
4b834650 | 367 | |
368 | /* IF the file size is a multiple of the page size, | |
369 | THEN sometimes you will seg fault trying to access a trailing byte */ | |
c9d2e60d | 370 | if ((stbf.st_size & (getpagesize()-1)) == 0) |
4b834650 | 371 | res = (char*)BAD_ADDR; |
372 | else | |
373 | res = (char*)mmap ((void*)NULL, data_map_size, PROT_READ, | |
374 | MAP_PRIVATE, data_map_fd, 0); | |
5daf7ede | 375 | if (res == (char*)BAD_ADDR) |
7163922c | 376 | #endif |
5daf7ede | 377 | { |
7163922c | 378 | FILE* fp = fdopen (data_map_fd, "r"); |
5daf7ede | 379 | curr_data_mapped = BOOL_FALSE; |
7163922c | 380 | res = load_file_data (fp); |
381 | fclose (fp); | |
5daf7ede | 382 | } |
6274714d | 383 | |
5daf7ede | 384 | return res; |
6274714d | 385 | } |
386 | ||
8322672c | 387 | static int |
a95bcb36 | 388 | machine_matches( tFixDesc* p_fixd ) |
6bd06916 | 389 | { |
d3aacc3b | 390 | # ifndef SEPARATE_FIX_PROC |
5daf7ede | 391 | tSCC case_fmt[] = "case %s in\n"; /* 9 bytes, plus string */ |
d940655c | 392 | tSCC esac_fmt[] = |
393 | " )\n echo %s ;;\n* ) echo %s ;;\nesac";/* 4 bytes */ | |
5daf7ede | 394 | tSCC skip[] = "skip"; /* 4 bytes */ |
395 | tSCC run[] = "run"; /* 3 bytes */ | |
396 | /* total bytes to add to machine sum: 49 - see fixincl.tpl */ | |
397 | ||
6bd06916 | 398 | const char **papz_machs = p_fixd->papz_machs; |
5daf7ede | 399 | char *pz; |
8322672c | 400 | const char *pz_sep = ""; |
6bd06916 | 401 | tCC *pz_if_true; |
402 | tCC *pz_if_false; | |
5daf7ede | 403 | char cmd_buf[ MACH_LIST_SIZE_LIMIT ]; /* size lim from fixincl.tpl */ |
6bd06916 | 404 | |
5daf7ede | 405 | /* Start the case statement */ |
6bd06916 | 406 | |
5daf7ede | 407 | sprintf (cmd_buf, case_fmt, pz_machine); |
408 | pz = cmd_buf + strlen (cmd_buf); | |
6bd06916 | 409 | |
5daf7ede | 410 | /* Determine if a match means to apply the fix or not apply it */ |
6bd06916 | 411 | |
412 | if (p_fixd->fd_flags & FD_MACH_IFNOT) | |
413 | { | |
414 | pz_if_true = skip; | |
415 | pz_if_false = run; | |
416 | } | |
417 | else | |
418 | { | |
419 | pz_if_true = run; | |
420 | pz_if_false = skip; | |
421 | } | |
422 | ||
5daf7ede | 423 | /* Emit all the machine names. If there are more than one, |
424 | then we will insert " | \\\n" between the names */ | |
6bd06916 | 425 | |
426 | for (;;) | |
427 | { | |
428 | const char* pz_mach = *(papz_machs++); | |
429 | ||
430 | if (pz_mach == (const char*) NULL) | |
431 | break; | |
5daf7ede | 432 | sprintf (pz, "%s%s", pz_sep, pz_mach); |
6bd06916 | 433 | pz += strlen (pz); |
434 | pz_sep = " | \\\n"; | |
435 | } | |
5daf7ede | 436 | |
437 | /* Now emit the match and not-match actions and the esac */ | |
438 | ||
439 | sprintf (pz, esac_fmt, pz_if_true, pz_if_false); | |
6bd06916 | 440 | |
441 | /* Run the script. | |
442 | The result will start either with 's' or 'r'. */ | |
443 | ||
862bc769 | 444 | { |
445 | int skip; | |
5daf7ede | 446 | pz = run_shell (cmd_buf); |
862bc769 | 447 | skip = (*pz == 's'); |
448 | free ( (void*)pz ); | |
449 | if (skip) | |
450 | { | |
451 | p_fixd->fd_flags |= FD_SKIP_TEST; | |
70ba55fd | 452 | return BOOL_FALSE; |
453 | } | |
454 | } | |
455 | ||
456 | return BOOL_TRUE; | |
d3aacc3b | 457 | # else /* is SEPARATE_FIX_PROC */ |
70ba55fd | 458 | const char **papz_machs = p_fixd->papz_machs; |
459 | int invert = (p_fixd->fd_flags & FD_MACH_IFNOT) != 0; | |
460 | for (;;) | |
461 | { | |
462 | const char* pz_mach = *(papz_machs++); | |
463 | ||
464 | if (pz_mach == (const char*) NULL) | |
465 | break; | |
466 | if (strstr (pz_mach, "dos") != NULL && !invert) | |
467 | return BOOL_TRUE; | |
468 | } | |
469 | ||
470 | p_fixd->fd_flags |= FD_SKIP_TEST; | |
471 | return BOOL_FALSE; | |
472 | # endif | |
473 | } | |
474 | ||
475 | /* * * * * * * * * * * * * | |
476 | ||
477 | run_compiles run all the regexp compiles for all the fixes once. | |
478 | */ | |
479 | void | |
a95bcb36 | 480 | run_compiles (void) |
70ba55fd | 481 | { |
482 | tFixDesc *p_fixd = fixDescList; | |
483 | int fix_ct = FIX_COUNT; | |
9c985aec | 484 | regex_t *p_re = xcalloc (REGEX_COUNT, sizeof (regex_t)); |
70ba55fd | 485 | |
486 | /* Make sure compile_re does not stumble across invalid data */ | |
487 | ||
6edf18a6 | 488 | memset (&incl_quote_re, '\0', sizeof (regex_t)); |
70ba55fd | 489 | |
490 | compile_re (incl_quote_pat, &incl_quote_re, 1, | |
491 | "quoted include", "run_compiles"); | |
492 | ||
493 | /* Allow machine name tests to be ignored (testing, mainly) */ | |
494 | ||
495 | if (pz_machine && ((*pz_machine == '\0') || (*pz_machine == '*'))) | |
496 | pz_machine = (char*)NULL; | |
497 | ||
498 | /* FOR every fixup, ... */ | |
499 | do | |
500 | { | |
501 | tTestDesc *p_test = p_fixd->p_test_desc; | |
502 | int test_ct = p_fixd->test_ct; | |
503 | ||
504 | /* IF the machine type pointer is not NULL (we are not in test mode) | |
505 | AND this test is for or not done on particular machines | |
506 | THEN ... */ | |
507 | ||
508 | if ( (pz_machine != NULL) | |
509 | && (p_fixd->papz_machs != (const char**) NULL) | |
510 | && ! machine_matches (p_fixd) ) | |
511 | continue; | |
6274714d | 512 | |
6bd06916 | 513 | /* FOR every test for the fixup, ... */ |
514 | ||
515 | while (--test_ct >= 0) | |
6274714d | 516 | { |
6bd06916 | 517 | switch (p_test->type) |
6274714d | 518 | { |
519 | case TT_EGREP: | |
520 | case TT_NEGREP: | |
6bd06916 | 521 | p_test->p_test_regex = p_re++; |
09fe1d5c | 522 | compile_re (p_test->pz_test_text, p_test->p_test_regex, 0, |
523 | "select test", p_fixd->fix_name); | |
2548396b | 524 | default: break; |
09fe1d5c | 525 | } |
6bd06916 | 526 | p_test++; |
6274714d | 527 | } |
528 | } | |
6bd06916 | 529 | while (p_fixd++, --fix_ct > 0); |
6274714d | 530 | } |
531 | ||
532 | ||
6bd06916 | 533 | /* * * * * * * * * * * * * |
5daf7ede | 534 | |
6bd06916 | 535 | create_file Create the output modified file. |
536 | Input: the name of the file to create | |
537 | Returns: a file pointer to the new, open file */ | |
538 | ||
27928b9a | 539 | #if defined(S_IRUSR) && defined(S_IWUSR) && \ |
540 | defined(S_IRGRP) && defined(S_IROTH) | |
541 | ||
542 | # define S_IRALL (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) | |
543 | #else | |
544 | # define S_IRALL 0644 | |
545 | #endif | |
546 | ||
547 | #if defined(S_IRWXU) && defined(S_IRGRP) && defined(S_IXGRP) && \ | |
548 | defined(S_IROTH) && defined(S_IXOTH) | |
549 | ||
550 | # define S_DIRALL (S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) | |
551 | #else | |
552 | # define S_DIRALL 0755 | |
553 | #endif | |
554 | ||
6bd06916 | 555 | |
8322672c | 556 | static FILE * |
a95bcb36 | 557 | create_file (void) |
6274714d | 558 | { |
559 | int fd; | |
560 | FILE *pf; | |
561 | char fname[MAXPATHLEN]; | |
562 | ||
5daf7ede | 563 | sprintf (fname, "%s/%s", pz_dest_dir, pz_curr_file + find_base_len); |
6274714d | 564 | |
6bd06916 | 565 | fd = open (fname, O_WRONLY | O_CREAT | O_TRUNC, S_IRALL); |
6274714d | 566 | |
6bd06916 | 567 | /* We may need to create the directories needed... */ |
6274714d | 568 | if ((fd < 0) && (errno == ENOENT)) |
569 | { | |
6bd06916 | 570 | char *pz_dir = strchr (fname + 1, '/'); |
6274714d | 571 | struct stat stbf; |
572 | ||
6bd06916 | 573 | while (pz_dir != (char *) NULL) |
6274714d | 574 | { |
6bd06916 | 575 | *pz_dir = NUL; |
6274714d | 576 | if (stat (fname, &stbf) < 0) |
577 | { | |
27928b9a | 578 | mkdir (fname, S_IFDIR | S_DIRALL); |
6274714d | 579 | } |
580 | ||
6bd06916 | 581 | *pz_dir = '/'; |
582 | pz_dir = strchr (pz_dir + 1, '/'); | |
6274714d | 583 | } |
6bd06916 | 584 | |
585 | /* Now, lets try the open again... */ | |
586 | fd = open (fname, O_WRONLY | O_CREAT | O_TRUNC, S_IRALL); | |
6274714d | 587 | } |
588 | if (fd < 0) | |
589 | { | |
590 | fprintf (stderr, "Error %d (%s) creating %s\n", | |
58113712 | 591 | errno, xstrerror (errno), fname); |
6274714d | 592 | exit (EXIT_FAILURE); |
593 | } | |
3fc31df4 | 594 | if (NOT_SILENT) |
595 | fprintf (stderr, "Fixed: %s\n", pz_curr_file); | |
6274714d | 596 | pf = fdopen (fd, "w"); |
597 | ||
cc42f3d4 | 598 | /* |
599 | * IF pz_machine is NULL, then we are in some sort of test mode. | |
600 | * Do not insert the current directory name. Use a constant string. | |
601 | */ | |
602 | fprintf (pf, z_std_preamble, | |
603 | (pz_machine == NULL) | |
604 | ? "fixinc/tests/inc" | |
605 | : pz_input_dir, | |
606 | pz_curr_file); | |
6bd06916 | 607 | |
6274714d | 608 | return pf; |
609 | } | |
610 | ||
6274714d | 611 | |
6bd06916 | 612 | /* * * * * * * * * * * * * |
6274714d | 613 | |
6bd06916 | 614 | test_test make sure a shell-style test expression passes. |
615 | Input: a pointer to the descriptor of the test to run and | |
616 | the name of the file that we might want to fix | |
5daf7ede | 617 | Result: APPLY_FIX or SKIP_FIX, depending on the result of the |
6bd06916 | 618 | shell script we run. */ |
d3aacc3b | 619 | #ifndef SEPARATE_FIX_PROC |
8322672c | 620 | static int |
a95bcb36 | 621 | test_test (tTestDesc* p_test, char* pz_test_file) |
6bd06916 | 622 | { |
09b00b9e | 623 | tSCC cmd_fmt[] = |
624 | "file=%s\n\ | |
625 | if ( test %s ) > /dev/null 2>&1\n\ | |
626 | then echo TRUE\n\ | |
627 | else echo FALSE\n\ | |
628 | fi"; | |
629 | ||
6bd06916 | 630 | char *pz_res; |
41cdbdba | 631 | int res; |
6bd06916 | 632 | |
633 | static char cmd_buf[4096]; | |
6bd06916 | 634 | |
5daf7ede | 635 | sprintf (cmd_buf, cmd_fmt, pz_test_file, p_test->pz_test_text); |
6bd06916 | 636 | pz_res = run_shell (cmd_buf); |
41cdbdba | 637 | |
638 | switch (*pz_res) { | |
639 | case 'T': | |
5daf7ede | 640 | res = APPLY_FIX; |
41cdbdba | 641 | break; |
642 | ||
643 | case 'F': | |
644 | res = SKIP_FIX; | |
645 | break; | |
646 | ||
647 | default: | |
648 | fprintf (stderr, "Script yielded bogus result of `%s':\n%s\n\n", | |
649 | pz_res, cmd_buf ); | |
4502ba69 | 650 | res = SKIP_FIX; |
41cdbdba | 651 | } |
652 | ||
6bd06916 | 653 | free ((void *) pz_res); |
6274714d | 654 | return res; |
655 | } | |
70ba55fd | 656 | #else |
657 | /* | |
658 | * IF we are in MS-DOS land, then whatever shell-type test is required | |
659 | * will, by definition, fail | |
660 | */ | |
661 | #define test_test(t,tf) SKIP_FIX | |
662 | #endif | |
6274714d | 663 | |
6bd06916 | 664 | /* * * * * * * * * * * * * |
5daf7ede | 665 | |
6bd06916 | 666 | egrep_test make sure an egrep expression is found in the file text. |
667 | Input: a pointer to the descriptor of the test to run and | |
668 | the pointer to the contents of the file under suspicion | |
5daf7ede | 669 | Result: APPLY_FIX if the pattern is found, SKIP_FIX otherwise |
6bd06916 | 670 | |
5daf7ede | 671 | The caller may choose to reverse meaning if the sense of the test |
6bd06916 | 672 | is inverted. */ |
673 | ||
8322672c | 674 | static int |
a95bcb36 | 675 | egrep_test (char* pz_data, tTestDesc* p_test) |
6274714d | 676 | { |
5daf7ede | 677 | #ifdef DEBUG |
6bd06916 | 678 | if (p_test->p_test_regex == 0) |
679 | fprintf (stderr, "fixincl ERROR RE not compiled: `%s'\n", | |
680 | p_test->pz_test_text); | |
6274714d | 681 | #endif |
30f9dc1c | 682 | if (xregexec (p_test->p_test_regex, pz_data, 0, 0, 0) == 0) |
5daf7ede | 683 | return APPLY_FIX; |
684 | return SKIP_FIX; | |
6274714d | 685 | } |
686 | ||
687 | ||
09b00b9e | 688 | /* * * * * * * * * * * * * |
689 | ||
690 | quoted_file_exists Make sure that a file exists before we emit | |
691 | the file name. If we emit the name, our invoking shell will try | |
692 | to copy a non-existing file into the destination directory. */ | |
693 | ||
8322672c | 694 | static int |
a95bcb36 | 695 | quoted_file_exists (const char* pz_src_path, |
696 | const char* pz_file_path, | |
697 | const char* pz_file) | |
09b00b9e | 698 | { |
699 | char z[ MAXPATHLEN ]; | |
700 | char* pz; | |
701 | sprintf (z, "%s/%s/", pz_src_path, pz_file_path); | |
702 | pz = z + strlen ( z ); | |
703 | ||
704 | for (;;) { | |
705 | char ch = *pz_file++; | |
5daf7ede | 706 | if (! ISGRAPH( ch )) |
09b00b9e | 707 | return 0; |
708 | if (ch == '"') | |
709 | break; | |
710 | *pz++ = ch; | |
711 | } | |
712 | *pz = '\0'; | |
713 | { | |
714 | struct stat s; | |
715 | if (stat (z, &s) != 0) | |
716 | return 0; | |
717 | return S_ISREG( s.st_mode ); | |
718 | } | |
719 | } | |
720 | ||
721 | ||
6bd06916 | 722 | /* * * * * * * * * * * * * |
723 | * | |
724 | extract_quoted_files | |
5daf7ede | 725 | |
6bd06916 | 726 | The syntax, `#include "file.h"' specifies that the compiler is to |
727 | search the local directory of the current file before the include | |
728 | list. Consequently, if we have modified a header and stored it in | |
729 | another directory, any files that are included by that modified | |
730 | file in that fashion must also be copied into this new directory. | |
731 | This routine finds those flavors of #include and for each one found | |
732 | emits a triple of: | |
5daf7ede | 733 | |
6bd06916 | 734 | 1. source directory of the original file |
735 | 2. the relative path file name of the #includ-ed file | |
736 | 3. the full destination path for this file | |
737 | ||
738 | Input: the text of the file, the file name and a pointer to the | |
739 | match list where the match information was stored. | |
740 | Result: internally nothing. The results are written to stdout | |
741 | for interpretation by the invoking shell */ | |
6274714d | 742 | |
09b00b9e | 743 | |
8322672c | 744 | static void |
a95bcb36 | 745 | extract_quoted_files (char* pz_data, |
746 | const char* pz_fixed_file, | |
747 | regmatch_t* p_re_match) | |
6274714d | 748 | { |
5daf7ede | 749 | char *pz_dir_end = strrchr (pz_fixed_file, '/'); |
6bd06916 | 750 | char *pz_incl_quot = pz_data; |
6274714d | 751 | |
3fc31df4 | 752 | if (VLEVEL( VERB_APPLIES )) |
753 | fprintf (stderr, "Quoted includes in %s\n", pz_fixed_file); | |
6274714d | 754 | |
5daf7ede | 755 | /* Set "pz_fixed_file" to point to the containing subdirectory of the source |
09b00b9e | 756 | If there is none, then it is in our current directory, ".". */ |
6bd06916 | 757 | |
758 | if (pz_dir_end == (char *) NULL) | |
5daf7ede | 759 | pz_fixed_file = "."; |
6274714d | 760 | else |
6bd06916 | 761 | *pz_dir_end = '\0'; |
6274714d | 762 | |
763 | for (;;) | |
764 | { | |
6bd06916 | 765 | pz_incl_quot += p_re_match->rm_so; |
766 | ||
767 | /* Skip forward to the included file name */ | |
93ce8ce4 | 768 | while (*pz_incl_quot != '"') |
6bd06916 | 769 | pz_incl_quot++; |
6bd06916 | 770 | |
5daf7ede | 771 | if (quoted_file_exists (pz_src_dir, pz_fixed_file, pz_incl_quot)) |
09b00b9e | 772 | { |
773 | /* Print the source directory and the subdirectory | |
774 | of the file in question. */ | |
5daf7ede | 775 | printf ("%s %s/", pz_src_dir, pz_fixed_file); |
09b00b9e | 776 | pz_dir_end = pz_incl_quot; |
777 | ||
778 | /* Append to the directory the relative path of the desired file */ | |
779 | while (*pz_incl_quot != '"') | |
780 | putc (*pz_incl_quot++, stdout); | |
781 | ||
782 | /* Now print the destination directory appended with the | |
783 | relative path of the desired file */ | |
5daf7ede | 784 | printf (" %s/%s/", pz_dest_dir, pz_fixed_file); |
09b00b9e | 785 | while (*pz_dir_end != '"') |
786 | putc (*pz_dir_end++, stdout); | |
787 | ||
788 | /* End of entry */ | |
789 | putc ('\n', stdout); | |
790 | } | |
6274714d | 791 | |
6bd06916 | 792 | /* Find the next entry */ |
30f9dc1c | 793 | if (xregexec (&incl_quote_re, pz_incl_quot, 1, p_re_match, 0) != 0) |
6274714d | 794 | break; |
795 | } | |
796 | } | |
797 | ||
798 | ||
5daf7ede | 799 | /* * * * * * * * * * * * * |
800 | ||
801 | Somebody wrote a *_fix subroutine that we must call. | |
802 | */ | |
d3aacc3b | 803 | #ifndef SEPARATE_FIX_PROC |
8322672c | 804 | static int |
a95bcb36 | 805 | internal_fix (int read_fd, tFixDesc* p_fixd) |
5daf7ede | 806 | { |
807 | int fd[2]; | |
808 | ||
809 | if (pipe( fd ) != 0) | |
810 | { | |
811 | fprintf (stderr, "Error %d on pipe(2) call\n", errno ); | |
812 | exit (EXIT_FAILURE); | |
813 | } | |
814 | ||
815 | for (;;) | |
816 | { | |
817 | pid_t childid = fork(); | |
818 | ||
819 | switch (childid) | |
820 | { | |
821 | case -1: | |
822 | break; | |
823 | ||
824 | case 0: | |
825 | close (fd[0]); | |
826 | goto do_child_task; | |
827 | ||
828 | default: | |
829 | /* | |
830 | * Parent process | |
831 | */ | |
832 | close (read_fd); | |
833 | close (fd[1]); | |
834 | return fd[0]; | |
835 | } | |
836 | ||
837 | /* | |
838 | * Parent in error | |
839 | */ | |
58113712 | 840 | fprintf (stderr, z_fork_err, errno, xstrerror (errno), |
5daf7ede | 841 | p_fixd->fix_name); |
842 | { | |
843 | static int failCt = 0; | |
844 | if ((errno != EAGAIN) || (++failCt > 10)) | |
845 | exit (EXIT_FAILURE); | |
846 | sleep (1); | |
847 | } | |
848 | } do_child_task:; | |
849 | ||
850 | /* | |
851 | * Close our current stdin and stdout | |
852 | */ | |
853 | close (STDIN_FILENO); | |
854 | close (STDOUT_FILENO); | |
855 | UNLOAD_DATA(); | |
856 | ||
857 | /* | |
858 | * Make the fd passed in the stdin, and the write end of | |
859 | * the new pipe become the stdout. | |
860 | */ | |
861 | fcntl (fd[1], F_DUPFD, STDOUT_FILENO); | |
862 | fcntl (read_fd, F_DUPFD, STDIN_FILENO); | |
5daf7ede | 863 | |
09fe1d5c | 864 | apply_fix (p_fixd, pz_curr_file); |
5daf7ede | 865 | exit (0); |
866 | } | |
d3aacc3b | 867 | #endif /* !SEPARATE_FIX_PROC */ |
70ba55fd | 868 | |
869 | ||
d3aacc3b | 870 | #ifdef SEPARATE_FIX_PROC |
70ba55fd | 871 | static void |
a95bcb36 | 872 | fix_with_system (tFixDesc* p_fixd, |
873 | tCC* pz_fix_file, | |
874 | tCC* pz_file_source, | |
875 | tCC* pz_temp_file) | |
70ba55fd | 876 | { |
877 | char* pz_cmd; | |
878 | char* pz_scan; | |
879 | size_t argsize; | |
880 | ||
881 | if (p_fixd->fd_flags & FD_SUBROUTINE) | |
882 | { | |
883 | tSCC z_applyfix_prog[] = "/fixinc/applyfix"; | |
884 | ||
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 | ||
6edf18a6 | 892 | pz_cmd = xmalloc (argsize); |
5daf7ede | 893 | |
70ba55fd | 894 | strcpy( pz_cmd, pz_orig_dir ); |
895 | pz_scan = pz_cmd + strlen( pz_orig_dir ); | |
896 | strcpy( pz_scan, z_applyfix_prog ); | |
897 | pz_scan += sizeof( z_applyfix_prog ) - 1; | |
898 | *(pz_scan++) = ' '; | |
899 | ||
900 | /* | |
901 | * Now add the fix number and file names that may be needed | |
902 | */ | |
d8f241ba | 903 | sprintf (pz_scan, "%ld \'%s\' \'%s\' \'%s\'", p_fixd - fixDescList, |
70ba55fd | 904 | pz_fix_file, pz_file_source, pz_temp_file); |
905 | } | |
906 | else /* NOT an "internal" fix: */ | |
907 | { | |
908 | size_t parg_size; | |
d3aacc3b | 909 | #ifdef __MSDOS__ |
70ba55fd | 910 | /* Don't use the "src > dstX; rm -f dst; mv -f dstX dst" trick: |
d3aacc3b | 911 | dst is a temporary file anyway, so we know there's no other |
912 | file by that name; and DOS's system(3) doesn't mind to | |
d8c5d866 | 913 | clobber existing file in redirection. Besides, with DOS 8+3 |
914 | limited file namespace, we can easily lose if dst already has | |
915 | an extension that is 3 or more characters long. | |
d3aacc3b | 916 | |
917 | I do not think the 8+3 issue is relevant because all the files | |
918 | we operate on are named "*.h", making 8+2 adequate. Anyway, | |
919 | the following bizarre use of 'cat' only works on DOS boxes. | |
920 | It causes the file to be dropped into a temporary file for | |
d8c5d866 | 921 | 'cat' to read (pipes do not work on DOS). */ |
d8f241ba | 922 | tSCC z_cmd_fmt[] = " \'%s\' | cat > \'%s\'"; |
d3aacc3b | 923 | #else |
924 | /* Don't use positional formatting arguments because some lame-o | |
925 | implementations cannot cope :-(. */ | |
926 | tSCC z_cmd_fmt[] = " %s > %sX ; rm -f %s; mv -f %sX %s"; | |
927 | #endif | |
70ba55fd | 928 | tCC** ppArgs = p_fixd->patch_args; |
929 | ||
930 | argsize = sizeof( z_cmd_fmt ) + strlen( pz_temp_file ) | |
931 | + strlen( pz_file_source ); | |
932 | parg_size = argsize; | |
933 | ||
934 | ||
935 | /* | |
936 | * Compute the size of the command line. Add lotsa extra space | |
937 | * because some of the args to sed use lotsa single quotes. | |
938 | * (This requires three extra bytes per quote. Here we allow | |
939 | * for up to 8 single quotes for each argument, including the | |
940 | * command name "sed" itself. Nobody will *ever* need more. :) | |
941 | */ | |
942 | for (;;) | |
943 | { | |
944 | tCC* p_arg = *(ppArgs++); | |
945 | if (p_arg == NULL) | |
946 | break; | |
947 | argsize += 24 + strlen( p_arg ); | |
948 | } | |
949 | ||
950 | /* Estimated buffer size we will need. */ | |
6edf18a6 | 951 | pz_scan = pz_cmd = xmalloc (argsize); |
70ba55fd | 952 | /* How much of it do we allot to the program name and its |
953 | arguments. */ | |
954 | parg_size = argsize - parg_size; | |
955 | ||
956 | ppArgs = p_fixd->patch_args; | |
957 | ||
958 | /* | |
959 | * Copy the program name, unquoted | |
960 | */ | |
961 | { | |
962 | tCC* pArg = *(ppArgs++); | |
963 | for (;;) | |
964 | { | |
965 | char ch = *(pArg++); | |
966 | if (ch == NUL) | |
967 | break; | |
968 | *(pz_scan++) = ch; | |
969 | } | |
970 | } | |
971 | ||
972 | /* | |
973 | * Copy the program arguments, quoted | |
974 | */ | |
975 | for (;;) | |
976 | { | |
977 | tCC* pArg = *(ppArgs++); | |
978 | char* pz_scan_save; | |
979 | if (pArg == NULL) | |
980 | break; | |
981 | *(pz_scan++) = ' '; | |
982 | pz_scan = make_raw_shell_str( pz_scan_save = pz_scan, pArg, | |
983 | parg_size - (pz_scan - pz_cmd) ); | |
984 | /* | |
985 | * Make sure we don't overflow the buffer due to sloppy | |
986 | * size estimation. | |
987 | */ | |
988 | while (pz_scan == (char*)NULL) | |
989 | { | |
990 | size_t already_filled = pz_scan_save - pz_cmd; | |
6edf18a6 | 991 | pz_cmd = xrealloc (pz_cmd, argsize += 100); |
70ba55fd | 992 | pz_scan_save = pz_scan = pz_cmd + already_filled; |
993 | parg_size += 100; | |
994 | pz_scan = make_raw_shell_str( pz_scan, pArg, | |
995 | parg_size - (pz_scan - pz_cmd) ); | |
996 | } | |
997 | } | |
998 | ||
999 | /* | |
1000 | * add the file machinations. | |
1001 | */ | |
103b4d3e | 1002 | #ifdef __MSDOS__ |
d3aacc3b | 1003 | sprintf (pz_scan, z_cmd_fmt, pz_file_source, pz_temp_file ); |
1004 | #else | |
1005 | sprintf (pz_scan, z_cmd_fmt, pz_file_source, pz_temp_file, | |
1006 | pz_temp_file, pz_temp_file, pz_temp_file); | |
1007 | #endif | |
70ba55fd | 1008 | } |
1009 | system( pz_cmd ); | |
1010 | free( (void*)pz_cmd ); | |
1011 | } | |
a99c7b98 | 1012 | |
1013 | /* * * * * * * * * * * * * | |
1014 | ||
1015 | This loop should only cycle for 1/2 of one loop. | |
1016 | "chain_open" starts a process that uses "read_fd" as | |
1017 | its stdin and returns the new fd this process will use | |
1018 | for stdout. */ | |
1019 | ||
d3aacc3b | 1020 | #else /* is *NOT* SEPARATE_FIX_PROC */ |
8322672c | 1021 | static int |
a95bcb36 | 1022 | start_fixer (int read_fd, tFixDesc* p_fixd, char* pz_fix_file) |
a99c7b98 | 1023 | { |
a99c7b98 | 1024 | tCC* pz_cmd_save; |
1025 | char* pz_cmd; | |
1026 | ||
5daf7ede | 1027 | if ((p_fixd->fd_flags & FD_SUBROUTINE) != 0) |
1028 | return internal_fix (read_fd, p_fixd); | |
1029 | ||
a99c7b98 | 1030 | if ((p_fixd->fd_flags & FD_SHELL_SCRIPT) == 0) |
4502ba69 | 1031 | { |
1032 | pz_cmd = NULL; | |
1033 | pz_cmd_save = NULL; | |
1034 | } | |
a99c7b98 | 1035 | else |
1036 | { | |
1037 | tSCC z_cmd_fmt[] = "file='%s'\n%s"; | |
6edf18a6 | 1038 | pz_cmd = xmalloc (strlen (p_fixd->patch_args[2]) |
1039 | + sizeof (z_cmd_fmt) + strlen (pz_fix_file)); | |
5daf7ede | 1040 | sprintf (pz_cmd, z_cmd_fmt, pz_fix_file, p_fixd->patch_args[2]); |
a99c7b98 | 1041 | pz_cmd_save = p_fixd->patch_args[2]; |
1042 | p_fixd->patch_args[2] = pz_cmd; | |
1043 | } | |
1044 | ||
3fc31df4 | 1045 | /* Start a fix process, handing off the previous read fd for its |
1046 | stdin and getting a new fd that reads from the fix process' stdout. | |
1047 | We normally will not loop, but we will up to 10 times if we keep | |
1048 | getting "EAGAIN" errors. | |
1049 | ||
1050 | */ | |
a99c7b98 | 1051 | for (;;) |
1052 | { | |
1053 | static int failCt = 0; | |
1054 | int fd; | |
1055 | ||
1056 | fd = chain_open (read_fd, | |
5beb4ba0 | 1057 | (tCC **) p_fixd->patch_args, |
a99c7b98 | 1058 | (process_chain_head == -1) |
1059 | ? &process_chain_head : (pid_t *) NULL); | |
1060 | ||
1061 | if (fd != -1) | |
1062 | { | |
1063 | read_fd = fd; | |
1064 | break; | |
1065 | } | |
1066 | ||
58113712 | 1067 | fprintf (stderr, z_fork_err, errno, xstrerror (errno), |
a99c7b98 | 1068 | p_fixd->fix_name); |
1069 | ||
1070 | if ((errno != EAGAIN) || (++failCt > 10)) | |
1071 | exit (EXIT_FAILURE); | |
1072 | sleep (1); | |
1073 | } | |
1074 | ||
3fc31df4 | 1075 | /* IF we allocated a shell script command, |
1076 | THEN free it and restore the command format to the fix description */ | |
a99c7b98 | 1077 | if (pz_cmd != (char*)NULL) |
1078 | { | |
1079 | free ((void*)pz_cmd); | |
1080 | p_fixd->patch_args[2] = pz_cmd_save; | |
1081 | } | |
1082 | ||
1083 | return read_fd; | |
1084 | } | |
70ba55fd | 1085 | #endif |
a99c7b98 | 1086 | |
5daf7ede | 1087 | |
6bd06916 | 1088 | /* * * * * * * * * * * * * |
1089 | ||
1090 | Process the potential fixes for a particular include file. | |
1091 | Input: the original text of the file and the file's name | |
1092 | Result: none. A new file may or may not be created. */ | |
1093 | ||
8322672c | 1094 | static t_bool |
a95bcb36 | 1095 | fix_applies (tFixDesc* p_fixd) |
6274714d | 1096 | { |
137f9f6b | 1097 | const char *pz_fname = pz_curr_file; |
1098 | const char *pz_scan = p_fixd->file_list; | |
5daf7ede | 1099 | int test_ct; |
1100 | tTestDesc *p_test; | |
6274714d | 1101 | |
d3aacc3b | 1102 | # ifdef SEPARATE_FIX_PROC |
70ba55fd | 1103 | /* |
1104 | * There is only one fix that uses a shell script as of this writing. | |
1105 | * I hope to nuke it anyway, it does not apply to DOS and it would | |
1106 | * be painful to implement. Therefore, no "shell" fixes for DOS. | |
1107 | */ | |
1108 | if (p_fixd->fd_flags & (FD_SHELL_SCRIPT | FD_SKIP_TEST)) | |
1109 | return BOOL_FALSE; | |
1110 | # else | |
5daf7ede | 1111 | if (p_fixd->fd_flags & FD_SKIP_TEST) |
1112 | return BOOL_FALSE; | |
70ba55fd | 1113 | # endif |
6274714d | 1114 | |
5daf7ede | 1115 | /* IF there is a file name restriction, |
1116 | THEN ensure the current file name matches one in the pattern */ | |
1117 | ||
137f9f6b | 1118 | if (pz_scan != (char *) NULL) |
5daf7ede | 1119 | { |
5daf7ede | 1120 | size_t name_len; |
6274714d | 1121 | |
5daf7ede | 1122 | while ((pz_fname[0] == '.') && (pz_fname[1] == '/')) |
1123 | pz_fname += 2; | |
1124 | name_len = strlen (pz_fname); | |
6bd06916 | 1125 | |
5daf7ede | 1126 | for (;;) |
6274714d | 1127 | { |
5daf7ede | 1128 | pz_scan = strstr (pz_scan + 1, pz_fname); |
1129 | /* IF we can't match the string at all, | |
1130 | THEN bail */ | |
70ba55fd | 1131 | if (pz_scan == (char *) NULL) |
5daf7ede | 1132 | return BOOL_FALSE; |
6274714d | 1133 | |
5daf7ede | 1134 | /* IF the match is surrounded by the '|' markers, |
1135 | THEN we found a full match -- time to run the tests */ | |
6274714d | 1136 | |
5daf7ede | 1137 | if ((pz_scan[-1] == '|') && (pz_scan[name_len] == '|')) |
1138 | break; | |
1139 | } | |
1140 | } | |
6274714d | 1141 | |
5daf7ede | 1142 | /* FOR each test, see if it fails. |
1143 | IF it does fail, then we go on to the next test */ | |
6bd06916 | 1144 | |
5daf7ede | 1145 | for (p_test = p_fixd->p_test_desc, test_ct = p_fixd->test_ct; |
1146 | test_ct-- > 0; | |
1147 | p_test++) | |
1148 | { | |
1149 | switch (p_test->type) | |
1150 | { | |
1151 | case TT_TEST: | |
3fc31df4 | 1152 | if (test_test (p_test, pz_curr_file) != APPLY_FIX) { |
1153 | #ifdef DEBUG | |
1154 | if (VLEVEL( VERB_EVERYTHING )) | |
41cdbdba | 1155 | fprintf (stderr, z_failed, "TEST", p_fixd->fix_name, |
1156 | pz_fname, p_fixd->test_ct - test_ct); | |
3fc31df4 | 1157 | #endif |
5daf7ede | 1158 | return BOOL_FALSE; |
3fc31df4 | 1159 | } |
5daf7ede | 1160 | break; |
1161 | ||
1162 | case TT_EGREP: | |
3fc31df4 | 1163 | if (egrep_test (pz_curr_data, p_test) != APPLY_FIX) { |
1164 | #ifdef DEBUG | |
1165 | if (VLEVEL( VERB_EVERYTHING )) | |
41cdbdba | 1166 | fprintf (stderr, z_failed, "EGREP", p_fixd->fix_name, |
1167 | pz_fname, p_fixd->test_ct - test_ct); | |
3fc31df4 | 1168 | #endif |
5daf7ede | 1169 | return BOOL_FALSE; |
3fc31df4 | 1170 | } |
5daf7ede | 1171 | break; |
1172 | ||
1173 | case TT_NEGREP: | |
3fc31df4 | 1174 | if (egrep_test (pz_curr_data, p_test) == APPLY_FIX) { |
1175 | #ifdef DEBUG | |
1176 | if (VLEVEL( VERB_EVERYTHING )) | |
41cdbdba | 1177 | fprintf (stderr, z_failed, "NEGREP", p_fixd->fix_name, |
1178 | pz_fname, p_fixd->test_ct - test_ct); | |
3fc31df4 | 1179 | #endif |
5daf7ede | 1180 | /* Negated sense */ |
1181 | return BOOL_FALSE; | |
3fc31df4 | 1182 | } |
5daf7ede | 1183 | break; |
1184 | ||
1185 | case TT_FUNCTION: | |
1186 | if (run_test (p_test->pz_test_text, pz_curr_file, pz_curr_data) | |
3fc31df4 | 1187 | != APPLY_FIX) { |
1188 | #ifdef DEBUG | |
1189 | if (VLEVEL( VERB_EVERYTHING )) | |
41cdbdba | 1190 | fprintf (stderr, z_failed, "FTEST", p_fixd->fix_name, |
1191 | pz_fname, p_fixd->test_ct - test_ct); | |
3fc31df4 | 1192 | #endif |
5daf7ede | 1193 | return BOOL_FALSE; |
3fc31df4 | 1194 | } |
5daf7ede | 1195 | break; |
6274714d | 1196 | } |
5daf7ede | 1197 | } |
6274714d | 1198 | |
5daf7ede | 1199 | return BOOL_TRUE; |
1200 | } | |
6274714d | 1201 | |
6274714d | 1202 | |
5daf7ede | 1203 | /* * * * * * * * * * * * * |
1204 | ||
1205 | Write out a replacement file */ | |
1206 | ||
8322672c | 1207 | static void |
a95bcb36 | 1208 | write_replacement (tFixDesc* p_fixd) |
5daf7ede | 1209 | { |
1210 | const char* pz_text = p_fixd->patch_args[0]; | |
1211 | ||
1212 | if ((pz_text == (char*)NULL) || (*pz_text == NUL)) | |
1213 | return; | |
1214 | ||
1215 | { | |
8322672c | 1216 | FILE* out_fp = create_file (); |
5daf7ede | 1217 | fputs (pz_text, out_fp); |
1218 | fclose (out_fp); | |
1219 | } | |
1220 | } | |
1221 | ||
1222 | ||
1223 | /* * * * * * * * * * * * * | |
1224 | ||
1225 | We have work to do. Read back in the output | |
1226 | of the filtering chain. Compare each byte as we read it with | |
1227 | the contents of the original file. As soon as we find any | |
1228 | difference, we will create the output file, write out all | |
1229 | the matched text and then copy any remaining data from the | |
1230 | output of the filter chain. | |
1231 | */ | |
8322672c | 1232 | static void |
a95bcb36 | 1233 | test_for_changes (int read_fd) |
5daf7ede | 1234 | { |
1235 | FILE *in_fp = fdopen (read_fd, "r"); | |
1236 | FILE *out_fp = (FILE *) NULL; | |
4a9dceb8 | 1237 | unsigned char *pz_cmp = (unsigned char*)pz_curr_data; |
5daf7ede | 1238 | |
1239 | #ifdef DO_STATS | |
1240 | fixed_ct++; | |
6bd06916 | 1241 | #endif |
5daf7ede | 1242 | for (;;) |
1243 | { | |
1244 | int ch; | |
6274714d | 1245 | |
5daf7ede | 1246 | ch = getc (in_fp); |
1247 | if (ch == EOF) | |
1248 | break; | |
4a9dceb8 | 1249 | ch &= 0xFF; /* all bytes are 8 bits */ |
5daf7ede | 1250 | |
1251 | /* IF we are emitting the output | |
1252 | THEN emit this character, too. | |
1253 | */ | |
1254 | if (out_fp != (FILE *) NULL) | |
1255 | putc (ch, out_fp); | |
1256 | ||
1257 | /* ELSE if this character does not match the original, | |
1258 | THEN now is the time to start the output. | |
1259 | */ | |
1260 | else if (ch != *pz_cmp) | |
1261 | { | |
8322672c | 1262 | out_fp = create_file (); |
5daf7ede | 1263 | |
1264 | #ifdef DO_STATS | |
1265 | altered_ct++; | |
6bd06916 | 1266 | #endif |
5daf7ede | 1267 | /* IF there are matched data, write the matched part now. */ |
5a96ff5f | 1268 | if ((char*)pz_cmp != pz_curr_data) |
1269 | fwrite (pz_curr_data, (size_t)((char*)pz_cmp - pz_curr_data), | |
1270 | 1, out_fp); | |
5daf7ede | 1271 | |
1272 | /* Emit the current unmatching character */ | |
1273 | putc (ch, out_fp); | |
6274714d | 1274 | } |
5daf7ede | 1275 | else |
1276 | /* ELSE the character matches. Advance the compare ptr */ | |
1277 | pz_cmp++; | |
1278 | } | |
1279 | ||
1280 | /* IF we created the output file, ... */ | |
1281 | if (out_fp != (FILE *) NULL) | |
1282 | { | |
1283 | regmatch_t match; | |
1284 | ||
1285 | /* Close the file and see if we have to worry about | |
1286 | `#include "file.h"' constructs. */ | |
1287 | fclose (out_fp); | |
30f9dc1c | 1288 | if (xregexec (&incl_quote_re, pz_curr_data, 1, &match, 0) == 0) |
5daf7ede | 1289 | extract_quoted_files (pz_curr_data, pz_curr_file, &match); |
1290 | } | |
1291 | ||
1292 | fclose (in_fp); | |
1293 | close (read_fd); /* probably redundant, but I'm paranoid */ | |
1294 | } | |
1295 | ||
1296 | ||
1297 | /* * * * * * * * * * * * * | |
1298 | ||
1299 | Process the potential fixes for a particular include file. | |
1300 | Input: the original text of the file and the file's name | |
1301 | Result: none. A new file may or may not be created. */ | |
1302 | ||
1303 | void | |
a95bcb36 | 1304 | process (void) |
5daf7ede | 1305 | { |
5daf7ede | 1306 | tFixDesc *p_fixd = fixDescList; |
1307 | int todo_ct = FIX_COUNT; | |
1308 | int read_fd = -1; | |
d3aacc3b | 1309 | # ifndef SEPARATE_FIX_PROC |
5daf7ede | 1310 | int num_children = 0; |
d3aacc3b | 1311 | # else /* is SEPARATE_FIX_PROC */ |
70ba55fd | 1312 | char* pz_file_source = pz_curr_file; |
1313 | # endif | |
5daf7ede | 1314 | |
1315 | if (access (pz_curr_file, R_OK) != 0) | |
1316 | { | |
1317 | int erno = errno; | |
1318 | fprintf (stderr, "Cannot access %s from %s\n\terror %d (%s)\n", | |
1319 | pz_curr_file, getcwd ((char *) NULL, MAXPATHLEN), | |
58113712 | 1320 | erno, xstrerror (erno)); |
5daf7ede | 1321 | return; |
1322 | } | |
1323 | ||
1324 | pz_curr_data = load_file (pz_curr_file); | |
1325 | if (pz_curr_data == (char *) NULL) | |
1326 | return; | |
1327 | ||
1328 | #ifdef DO_STATS | |
1329 | process_ct++; | |
1330 | #endif | |
bb304030 | 1331 | if (VLEVEL( VERB_PROGRESS ) && have_tty) |
9ddf8721 | 1332 | fprintf (stderr, "%6lu %-50s \r", |
1333 | (unsigned long) data_map_size, pz_curr_file); | |
5daf7ede | 1334 | |
d3aacc3b | 1335 | # ifndef SEPARATE_FIX_PROC |
5daf7ede | 1336 | process_chain_head = NOPROCESS; |
1337 | ||
1338 | /* For every fix in our fix list, ... */ | |
1339 | for (; todo_ct > 0; p_fixd++, todo_ct--) | |
1340 | { | |
1341 | if (! fix_applies (p_fixd)) | |
1342 | continue; | |
6274714d | 1343 | |
3fc31df4 | 1344 | if (VLEVEL( VERB_APPLIES )) |
1345 | fprintf (stderr, "Applying %-24s to %s\n", | |
1346 | p_fixd->fix_name, pz_curr_file); | |
5daf7ede | 1347 | |
1348 | if (p_fixd->fd_flags & FD_REPLACEMENT) | |
1349 | { | |
1350 | write_replacement (p_fixd); | |
1351 | UNLOAD_DATA(); | |
1352 | return; | |
1353 | } | |
6bd06916 | 1354 | |
1355 | /* IF we do not have a read pointer, | |
1356 | THEN this is the first fix for the current file. | |
1357 | Open the source file. That will be used as stdin for | |
1358 | the first fix. Any subsequent fixes will use the | |
5daf7ede | 1359 | stdout descriptor of the previous fix for its stdin. */ |
6274714d | 1360 | |
063938a0 | 1361 | if (read_fd == -1) |
6bd06916 | 1362 | { |
5daf7ede | 1363 | read_fd = open (pz_curr_file, O_RDONLY); |
063938a0 | 1364 | if (read_fd < 0) |
6274714d | 1365 | { |
6bd06916 | 1366 | fprintf (stderr, "Error %d (%s) opening %s\n", errno, |
58113712 | 1367 | xstrerror (errno), pz_curr_file); |
6bd06916 | 1368 | exit (EXIT_FAILURE); |
6274714d | 1369 | } |
5daf7ede | 1370 | |
1371 | /* Ensure we do not get duplicate output */ | |
1372 | ||
1373 | fflush (stdout); | |
6bd06916 | 1374 | } |
6274714d | 1375 | |
5daf7ede | 1376 | read_fd = start_fixer (read_fd, p_fixd, pz_curr_file); |
a99c7b98 | 1377 | num_children++; |
6274714d | 1378 | } |
1379 | ||
5daf7ede | 1380 | /* IF we have a read-back file descriptor, |
1381 | THEN check for changes and write output if changed. */ | |
6bd06916 | 1382 | |
5daf7ede | 1383 | if (read_fd >= 0) |
1384 | { | |
1385 | test_for_changes (read_fd); | |
1386 | #ifdef DO_STATS | |
1387 | apply_ct += num_children; | |
1388 | #endif | |
1389 | /* Wait for child processes created by chain_open() | |
1390 | to avoid leaving zombies. */ | |
1391 | do { | |
1392 | wait ((int *) NULL); | |
1393 | } while (--num_children > 0); | |
1394 | } | |
3e7a39cd | 1395 | |
d3aacc3b | 1396 | # else /* is SEPARATE_FIX_PROC */ |
70ba55fd | 1397 | |
1398 | for (; todo_ct > 0; p_fixd++, todo_ct--) | |
1399 | { | |
1400 | if (! fix_applies (p_fixd)) | |
1401 | continue; | |
1402 | ||
1403 | if (VLEVEL( VERB_APPLIES )) | |
1404 | fprintf (stderr, "Applying %-24s to %s\n", | |
1405 | p_fixd->fix_name, pz_curr_file); | |
1406 | ||
1407 | if (p_fixd->fd_flags & FD_REPLACEMENT) | |
1408 | { | |
1409 | write_replacement (p_fixd); | |
1410 | UNLOAD_DATA(); | |
1411 | return; | |
1412 | } | |
1413 | fix_with_system (p_fixd, pz_curr_file, pz_file_source, pz_temp_file); | |
1414 | pz_file_source = pz_temp_file; | |
1415 | } | |
1416 | ||
d3aacc3b | 1417 | read_fd = open (pz_temp_file, O_RDONLY); |
1418 | if (read_fd < 0) | |
1419 | { | |
7163922c | 1420 | if (errno != ENOENT) |
1421 | fprintf (stderr, "error %d (%s) opening output (%s) for read\n", | |
1422 | errno, xstrerror (errno), pz_temp_file); | |
d3aacc3b | 1423 | } |
1424 | else | |
1425 | { | |
1426 | test_for_changes (read_fd); | |
1427 | /* Unlinking a file while it is still open is a Bad Idea on | |
1428 | DOS/Windows. */ | |
1429 | close (read_fd); | |
1430 | unlink (pz_temp_file); | |
1431 | } | |
70ba55fd | 1432 | |
1433 | # endif | |
5daf7ede | 1434 | UNLOAD_DATA(); |
6274714d | 1435 | } |