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1.1 root 1: /* fix-header.c - Make C header file suitable for C++.
2: Copyright (C) 1993 Free Software Foundation, Inc.
3:
4: This program is free software; you can redistribute it and/or modify it
5: under the terms of the GNU General Public License as published by the
6: Free Software Foundation; either version 2, or (at your option) any
7: later version.
8:
9: This program is distributed in the hope that it will be useful,
10: but WITHOUT ANY WARRANTY; without even the implied warranty of
11: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12: GNU General Public License for more details.
13:
14: You should have received a copy of the GNU General Public License
15: along with this program; if not, write to the Free Software
16: Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
17:
18: /* This program massages a system include file (such as stdio.h),
19: into a form more conformant with ANSI/POSIX, and more suitable for C++:
20:
21: * extern "C" { ... } braces are added (inside #ifndef __cplusplus),
22: if they seem to be needed. These prevent C++ compilers from name
23: mangling the functions inside the braces.
24:
25: * If an old-style incomplete function declaration is seen (without
26: an argument list), and it is a "standard" function listed in
27: the file sys-protos.h (and with a non-empty argument list), then
28: the declaration is converted to a complete prototype by replacing
29: the empty parameter list with the argument lust from sys-protos.h.
30:
31: * The program can be given a list of (names of) required standard
32: functions (such as fclose for stdio.h). If a reqquired function
33: is not seen in the input, then a prototype for it will be
34: written to the output.
35:
36: * If all of the non-comment code of the original file is protected
37: against multiple inclusion:
38: #ifndef FOO
39: #define FOO
40: <body of include file>
41: #endif
42: then extra matter added to the include file is placed inside the <body>.
43:
44: * If the input file is OK (nothing needs to be done);
45: the output file is not written (nor removed if it exists).
46:
47: There are also some special actions that are done for certain
48: well-known standard include files:
49:
50: * If argv[1] is "sys/stat.h", the Posix.1 macros
51: S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISLNK, S_ISREG are added if
52: they were missing, and the corresponding "traditional" S_IFxxx
53: macros were defined.
54:
55: * If argv[1] is "errno.h", errno is declared if it was missing.
56:
57: * TODO: The input file should be read complete into memory, because:
58: a) it needs to be scanned twice anyway, and
59: b) it would be nice to allow update in place.
60:
61: Usage:
62: fix-header FOO.H INFILE.H OUTFILE.H REQUIRED_FUNCS <SCAN-FILE
63: where:
64: * FOO.H is the relative file name of the include file,
65: as it would be #include'd by a C file. (E.g. stdio.h)
66: * INFILE.H is a full pathname for the input file (e.g. /usr/include/stdio.h)
67: * OUTFILE.H is the full pathname for where to write the output file,
68: if anything needs to be done. (e.g. ./include/stdio.h)
69: * SCAN-FILE is the output of the scan-decls program.
70: * REQUIRED_FUNCS is a list of required function (e.g. fclose for stdio.h).
71:
72: Written by Per Bothner <[email protected]>, July 1993. */
73:
74: #include <stdio.h>
75: #include <ctype.h>
76: #include <sys/types.h>
77: #include <sys/stat.h>
78: #ifndef O_RDONLY
79: #define O_RDONLY 0
80: #endif
81: #include "hconfig.h"
82: #include "obstack.h"
83: #include "scan.h"
84:
85: int verbose = 0;
86: int partial_count = 0;
87: int missing_extern_C_count = 0;
88: int missing_errno = 0;
89:
90: #include "xsys-protos.h"
91:
92: char *inf_buffer;
93: char *inf_limit;
94: char *inf_ptr;
95:
96: /* Certain standard files get extra treatment */
97:
98: enum special_file
99: {
100: no_special,
101: errno_special,
102: sys_stat_special
103: };
104:
105: enum special_file special_file_handling = no_special;
106:
107: /* The following are only used when handling sys/stat.h */
108: /* They are set if the corresponding macro has been seen. */
109: int seen_S_IFBLK = 0, seen_S_ISBLK = 0;
110: int seen_S_IFCHR = 0, seen_S_ISCHR = 0;
111: int seen_S_IFDIR = 0, seen_S_ISDIR = 0;
112: int seen_S_IFIFO = 0, seen_S_ISFIFO = 0;
113: int seen_S_IFLNK = 0, seen_S_ISLNK = 0;
114: int seen_S_IFREG = 0, seen_S_ISREG = 0;
115:
116: /* Wrapper around free, to avoid prototype clashes. */
117:
118: void
119: xfree (ptr)
120: char *ptr;
121: {
122: free (ptr);
123: }
124:
125: /* Avoid error if config defines abort as fancy_abort.
126: It's not worth "really" implementing this because ordinary
127: compiler users never run fix-header. */
128:
129: void
130: fancy_abort ()
131: {
132: abort ();
133: }
134:
135: #define obstack_chunk_alloc xmalloc
136: #define obstack_chunk_free xfree
137: struct obstack scan_file_obstack;
138:
139: /* NOTE: If you edit this, also edit gen-protos.c !! */
140: struct fn_decl *
141: lookup_std_proto (name)
142: char *name;
143: {
144: int i = hash (name) % HASH_SIZE;
145: int i0 = i;
146: for (;;)
147: {
148: struct fn_decl *fn;
149: if (hash_tab[i] == 0)
150: return NULL;
151: fn = &std_protos[hash_tab[i]];
152: if (strcmp (fn->fname, name) == 0)
153: return fn;
154: i = (i+1) % HASH_SIZE;
155: if (i == i0)
156: abort ();
157: }
158: }
159:
160: char *inc_filename;
161: int inc_filename_length;
162: char *progname = "fix-header";
163: FILE *outf;
164: sstring buf;
165: sstring line;
166:
167: int lbrac_line, rbrac_line;
168:
169: char **required_functions;
170: int required_unseen_count;
171:
172: int
173: write_lbrac ()
174: {
175:
176: if (missing_extern_C_count + required_unseen_count > 0)
177: fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
178:
179: if (partial_count)
180: {
181: fprintf (outf, "#ifndef _PARAMS\n");
182: fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n");
183: fprintf (outf, "#define _PARAMS(ARGS) ARGS\n");
184: fprintf (outf, "#else\n");
185: fprintf (outf, "#define _PARAMS(ARGS) ()\n");
186: fprintf (outf, "#endif\n#endif /* _PARAMS */\n");
187: }
188: }
189:
190: struct partial_proto
191: {
192: struct partial_proto *next;
193: char *fname; /* name of function */
194: char *rtype; /* return type */
195: struct fn_decl *fn;
196: int line_seen;
197: };
198:
199: struct partial_proto *partial_proto_list = NULL;
200:
201: struct partial_proto required_dummy_proto;
202: #define REQUIRED(FN) ((FN)->partial == &required_dummy_proto)
203: #define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto)
204: #define CLEAR_REQUIRED(FN) ((FN)->partial = 0)
205:
206: void
207: recognized_macro (fname)
208: char *fname;
209: {
210: /* The original include file defines fname as a macro. */
211: struct fn_decl *fn = lookup_std_proto (fname);
212:
213: /* Since fname is a macro, don't require a prototype for it. */
214: if (fn && REQUIRED (fn))
215: {
216: CLEAR_REQUIRED (fn);
217: required_unseen_count--;
218: }
219:
220: switch (special_file_handling)
221: {
222: case errno_special:
223: if (strcmp (fname, "errno") == 0) missing_errno = 0;
224: break;
225: case sys_stat_special:
226: if (fname[0] == 'S' && fname[1] == '_')
227: {
228: if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++;
229: else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++;
230: else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++;
231: else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++;
232: else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++;
233: else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++;
234: else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++;
235: else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++;
236: else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++;
237: else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++;
238: else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++;
239: else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++;
240: }
241: }
242: }
243:
244: void
245: recognized_extern (name, type)
246: char *name;
247: char *type;
248: {
249: switch (special_file_handling)
250: {
251: case errno_special:
252: if (strcmp (name, "errno") == 0) missing_errno = 0;
253: break;
254: }
255: }
256:
257: /* Called by scan_decls if it saw a function definition for a function
258: named FNAME, with return type RTYPE, and argument list ARGS,
259: in source file FILE_SEEN on line LINE_SEEN.
260: KIND is 'I' for an inline function;
261: 'F' if a normal function declaration preceded by 'extern "C"'
262: (or nested inside 'extern "C"' braces); or
263: 'f' for other function declarations. */
264:
265: void
266: recognized_function (fname, kind, rtype, args, file_seen, line_seen)
267: char *fname;
268: int kind; /* One of 'f' 'F' or 'I' */
269: char *rtype;
270: char *args;
271: char *file_seen;
272: int line_seen;
273: {
274: struct partial_proto *partial;
275: int i;
276: struct fn_decl *fn;
277: if (kind == 'f')
278: missing_extern_C_count++;
279:
280: fn = lookup_std_proto (fname);
281:
282: /* Remove the function from the list of required function. */
283: if (fn && REQUIRED (fn))
284: {
285: CLEAR_REQUIRED (fn);
286: required_unseen_count--;
287: }
288:
289: /* If we have a full prototype, we're done. */
290: if (args[0] != '\0')
291: return;
292:
293: if (kind == 'I') /* don't edit inline function */
294: return;
295:
296: /* If the partial prototype was included from some other file,
297: we don't need to patch it up (in this run). */
298: i = strlen (file_seen);
299: if (i < inc_filename_length
300: || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0)
301: return;
302:
303: if (fn == NULL)
304: return;
305: if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0)
306: return;
307:
308: /* We only have a partial function declaration,
309: so remember that we have to add a complete prototype. */
310: partial_count++;
311: partial = (struct partial_proto*)
312: obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto));
313: partial->fname = obstack_alloc (&scan_file_obstack, strlen (fname) + 1);
314: strcpy (partial->fname, fname);
315: partial->rtype = obstack_alloc (&scan_file_obstack, strlen (rtype) + 1);
316: strcpy (partial->rtype, rtype);
317: partial->line_seen = line_seen;
318: partial->fn = fn;
319: fn->partial = partial;
320: partial->next = partial_proto_list;
321: partial_proto_list = partial;
322: if (verbose)
323: {
324: fprintf (stderr, "(%s: %s non-prototype function declaration.)\n",
325: inc_filename, fname);
326: }
327: }
328:
329: void
330: read_scan_file (scan_file)
331: FILE *scan_file;
332: {
333: char **rptr;
334: obstack_init (&scan_file_obstack);
335:
336: scan_decls (scan_file);
337:
338: if (missing_extern_C_count + required_unseen_count + partial_count
339: + missing_errno == 0)
340: {
341: if (verbose)
342: fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename);
343: exit (0);
344: }
345: if (!verbose)
346: fprintf (stderr, "%s: fixing %s\n", progname, inc_filename);
347: else
348: {
349: if (required_unseen_count)
350: fprintf (stderr, "%s: %d missing function declarations.\n",
351: inc_filename, required_unseen_count);
352: if (partial_count)
353: fprintf (stderr, "%s: %d non-prototype function declarations.\n",
354: inc_filename, partial_count);
355: if (missing_extern_C_count)
356: fprintf (stderr,
357: "%s: %d declarations not protected by extern \"C\".\n",
358: inc_filename, missing_extern_C_count);
359: }
360: }
361:
362: write_rbrac ()
363: {
364: struct fn_decl *fn;
365: char **rptr;
366: register struct partial_proto *partial;
367:
368: if (required_unseen_count)
369: fprintf (outf, "#ifdef __cplusplus\n");
370:
371: /* Now we print out prototypes for those functions that we haven't seen. */
372: for (rptr = required_functions; *rptr; rptr++)
373: {
374: int macro_protect = 0;
375:
376: fn = lookup_std_proto (*rptr);
377: if (fn == NULL || !REQUIRED (fn))
378: continue;
379:
380: /* In the case of memmove, protect in case the application
381: defines it as a macro before including the header. */
382: if (!strcmp (fn->fname, "memmove")
383: || !strcmp (fn->fname, "vprintf")
384: || !strcmp (fn->fname, "vfprintf")
385: || !strcmp (fn->fname, "vsprintf")
386: || !strcmp (fn->fname, "rewinddir"))
387: macro_protect = 1;
388:
389: if (macro_protect)
390: fprintf (outf, "#ifndef %s\n", fn->fname);
391: fprintf (outf, "extern %s %s (%s);\n",
392: fn->rtype, fn->fname, fn->params);
393: if (macro_protect)
394: fprintf (outf, "#endif\n");
395: }
396: if (required_unseen_count)
397: fprintf (outf,
398: "#endif /* defined(__cplusplus) */\n");
399:
400: switch (special_file_handling)
401: {
402: case errno_special:
403: if (missing_errno)
404: fprintf (outf, "extern int errno;\n");
405: break;
406: case sys_stat_special:
407: if (!seen_S_ISBLK && seen_S_IFBLK)
408: fprintf (outf,
409: "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n");
410: if (!seen_S_ISCHR && seen_S_IFCHR)
411: fprintf (outf,
412: "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n");
413: if (!seen_S_ISDIR && seen_S_IFDIR)
414: fprintf (outf,
415: "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n");
416: if (!seen_S_ISFIFO && seen_S_IFIFO)
417: fprintf (outf,
418: "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n");
419: if (!seen_S_ISLNK && seen_S_IFLNK)
420: fprintf (outf,
421: "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n");
422: if (!seen_S_ISREG && seen_S_IFREG)
423: fprintf (outf,
424: "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n");
425: break;
426: }
427:
428:
429: if (missing_extern_C_count + required_unseen_count > 0)
430: fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
431: }
432:
433: char *
434: strdup (str)
435: char *str;
436: {
437: char *copy = (char *) xmalloc (strlen (str) + 1);
438: strcpy (copy, str);
439: return copy;
440: }
441:
442: /* Returns 1 iff the file is properly protected from multiple inclusion:
443: #ifndef PROTECT_NAME
444: #define PROTECT_NAME
445: #endif
446:
447: */
448:
449: #define INF_GET() (inf_ptr < inf_limit ? *(unsigned char*)inf_ptr++ : EOF)
450: #define INF_UNGET(c) ((c)!=EOF && inf_ptr--)
451:
452: int
453: inf_skip_spaces (c)
454: int c;
455: {
456: for (;;)
457: {
458: if (c == ' ' || c == '\t')
459: c = INF_GET ();
460: else if (c == '/')
461: {
462: c = INF_GET ();
463: if (c != '*')
464: {
465: INF_UNGET (c);
466: return '/';
467: }
468: c = INF_GET ();
469: for (;;)
470: {
471: if (c == EOF)
472: return EOF;
473: else if (c != '*')
474: {
475: if (c == '\n')
476: source_lineno++, lineno++;
477: c = INF_GET ();
478: }
479: else if ((c = INF_GET ()) == '/')
480: return INF_GET ();
481: }
482: }
483: else
484: break;
485: }
486: return c;
487: }
488:
489: /* Read into STR from inf_buffer upto DELIM. */
490:
491: int
492: inf_read_upto (str, delim)
493: sstring *str;
494: int delim;
495: {
496: int ch;
497: for (;;)
498: {
499: ch = INF_GET ();
500: if (ch == EOF || ch == delim)
501: break;
502: SSTRING_PUT (str, ch);
503: }
504: MAKE_SSTRING_SPACE (str, 1);
505: *str->ptr = 0;
506: return ch;
507: }
508:
509: int
510: inf_scan_ident (s, c)
511: register sstring *s;
512: int c;
513: {
514: s->ptr = s->base;
515: if (isalpha (c) || c == '_')
516: {
517: for (;;)
518: {
519: SSTRING_PUT (s, c);
520: c = INF_GET ();
521: if (c == EOF || !(isalnum (c) || c == '_'))
522: break;
523: }
524: }
525: MAKE_SSTRING_SPACE (s, 1);
526: *s->ptr = 0;
527: return c;
528: }
529:
530: /* Returns 1 if the file is correctly protected against multiple
531: inclusion, setting *ifndef_line to the line number of the initial #ifndef
532: and setting *endif_line to the final #endif.
533: Otherwise return 0. */
534:
535: int
536: check_protection (ifndef_line, endif_line)
537: int *ifndef_line, *endif_line;
538: {
539: int c;
540: int if_nesting = 1; /* Level of nesting of #if's */
541: char *protect_name = NULL; /* Identifier following initial #ifndef */
542: int define_seen = 0;
543:
544: /* Skip initial white space (including comments). */
545: for (;; lineno++)
546: {
547: c = inf_skip_spaces (' ');
548: if (c == EOF)
549: return 0;
550: if (c != '\n')
551: break;
552: }
553: if (c != '#')
554: return 0;
555: c = inf_scan_ident (&buf, inf_skip_spaces (' '));
556: if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0)
557: return 0;
558:
559: /* So far so good: We've seen an initial #ifndef. */
560: *ifndef_line = lineno;
561: c = inf_scan_ident (&buf, inf_skip_spaces (c));
562: if (SSTRING_LENGTH (&buf) == 0 || c == EOF)
563: return 0;
564: protect_name = strdup (buf.base);
565:
566: INF_UNGET (c);
567: c = inf_read_upto (&buf, '\n');
568: if (c == EOF)
569: return 0;
570: lineno++;
571:
572: for (;;)
573: {
574: c = inf_skip_spaces (' ');
575: if (c == EOF)
576: return 0;
577: if (c == '\n')
578: {
579: lineno++;
580: continue;
581: }
582: if (c != '#')
583: goto skip_to_eol;
584: c = inf_scan_ident (&buf, inf_skip_spaces (' '));
585: if (SSTRING_LENGTH (&buf) == 0)
586: ;
587: else if (!strcmp (buf.base, "ifndef")
588: || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if"))
589: {
590: if_nesting++;
591: }
592: else if (!strcmp (buf.base, "endif"))
593: {
594: if_nesting--;
595: if (if_nesting == 0)
596: break;
597: }
598: else if (!strcmp (buf.base, "else"))
599: {
600: if (if_nesting == 1)
601: return 0;
602: }
603: else if (!strcmp (buf.base, "define"))
604: {
605: if (if_nesting != 1)
606: goto skip_to_eol;
607: c = inf_skip_spaces (c);
608: c = inf_scan_ident (&buf, c);
609: if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0)
610: define_seen = 1;
611: }
612: skip_to_eol:
613: for (;;)
614: {
615: if (c == '\n' || c == EOF)
616: break;
617: c = INF_GET ();
618: }
619: if (c == EOF)
620: return 0;
621: lineno++;
622: }
623:
624: if (!define_seen)
625: return 0;
626: *endif_line = lineno;
627: /* Skip final white space (including comments). */
628: for (;;)
629: {
630: c = inf_skip_spaces (' ');
631: if (c == EOF)
632: break;
633: if (c != '\n')
634: return 0;
635: }
636:
637: return 1;
638: }
639:
640: int
641: main (argc, argv)
642: int argc;
643: char **argv;
644: {
645: int inf_fd;
646: struct stat sbuf;
647: int c;
648: int i, done;
649: char *cptr, *cptr0, **pptr;
650: int ifndef_line;
651: int endif_line;
652: long to_read;
653: long int inf_size;
654:
655: if (argv[0] && argv[0][0])
656: {
657: register char *p;
658:
659: progname = 0;
660: for (p = argv[0]; *p; p++)
661: if (*p == '/')
662: progname = p;
663: progname = progname ? progname+1 : argv[0];
664: }
665:
666: if (argc < 4)
667: {
668: fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h req_funcs <scan-file-name\n",
669: progname);
670: exit (-1);
671: }
672:
673: inc_filename = argv[1];
674: inc_filename_length = strlen (inc_filename);
675: if (strcmp (inc_filename, "sys/stat.h") == 0)
676: special_file_handling = sys_stat_special;
677: else if (strcmp (inc_filename, "errno.h") == 0)
678: special_file_handling = errno_special, missing_errno = 1;
679:
680: /* Calculate an upper bound of the number of function names in argv[4] */
681: for (i = 1, cptr = argv[4]; *cptr; cptr++)
682: if (*cptr == ' ') i++;
683: /* Find the list of prototypes required for this include file. */
684: required_functions = (char**)xmalloc ((i+1) * sizeof (char*));
685: for (cptr = argv[4], cptr0 = cptr, pptr = required_functions, done = 0;
686: !done; cptr++)
687: {
688: done = *cptr == '\0';
689: if (*cptr == ' ' || done)
690: {
691: *cptr = '\0';
692: if (cptr > cptr0)
693: {
694: struct fn_decl *fn = lookup_std_proto (cptr0);
695: *pptr++ = cptr0;
696: if (fn == NULL)
697: fprintf (stderr, "Internal error: No prototype for %s\n",
698: cptr0);
699: else
700: SET_REQUIRED (fn);
701: }
702: cptr0 = cptr + 1;
703: }
704: }
705: required_unseen_count = pptr - required_functions;
706: *pptr = 0;
707:
708: read_scan_file (stdin);
709:
710: inf_fd = open (argv[2], O_RDONLY, 0666);
711: if (inf_fd < 0)
712: {
713: fprintf (stderr, "%s: Cannot open '%s' for reading -",
714: progname, argv[2]);
715: perror (NULL);
716: exit (-1);
717: }
718: if (fstat (inf_fd, &sbuf) < 0)
719: {
720: fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]);
721: perror (NULL);
722: exit (-1);
723: }
724: inf_size = sbuf.st_size;
725: inf_buffer = (char*) xmalloc (inf_size + 2);
726: inf_buffer[inf_size] = '\n';
727: inf_buffer[inf_size + 1] = '\0';
728: inf_limit = inf_buffer + inf_size;
729: inf_ptr = inf_buffer;
730:
731: to_read = inf_size;
732: while (to_read > 0)
733: {
734: long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read);
735: if (i < 0)
736: {
737: fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]);
738: perror (NULL);
739: exit (-1);
740: }
741: if (i == 0)
742: {
743: inf_size -= to_read;
744: break;
745: }
746: to_read -= i;
747: }
748:
749: close (inf_fd);
750:
751: /* If file doesn't end with '\n', add one. */
752: if (inf_limit > inf_buffer && inf_limit[-1] != '\n')
753: inf_limit++;
754:
755: unlink (argv[3]);
756: outf = fopen (argv[3], "w");
757: if (outf == NULL)
758: {
759: fprintf (stderr, "%s: Cannot open '%s' for writing -",
760: progname, argv[3]);
761: perror (NULL);
762: exit (-1);
763: }
764:
765: lineno = 1;
766:
767: if (check_protection (&ifndef_line, &endif_line))
768: {
769: #if 0
770: fprintf (stderr, "#ifndef %s on line %d; #endif on line %d\n",
771: protect_name, ifndef_line, endif_line);
772: #endif
773: lbrac_line = ifndef_line+1;
774: rbrac_line = endif_line;
775: }
776: else
777: {
778: lbrac_line = 1;
779: rbrac_line = -1;
780: }
781:
782: /* Reset input file. */
783: inf_ptr = inf_buffer;
784: lineno = 1;
785:
786: for (;;)
787: {
788: if (lineno == lbrac_line)
789: write_lbrac ();
790: if (lineno == rbrac_line)
791: write_rbrac ();
792: for (;;)
793: {
794: struct fn_decl *fn;
795: c = INF_GET ();
796: if (c == EOF)
797: break;
798: if (isalpha (c) || c == '_')
799: {
800: struct partial_proto *partial;
801: c = inf_scan_ident (&buf, c);
802: INF_UNGET (c);
803: fputs (buf.base, outf);
804: fn = lookup_std_proto (buf.base);
805: /* We only want to edit the declaration matching the one
806: seen by scan-decls, as there can be multiple
807: declarations, selected by #ifdef __STDC__ or whatever. */
808: if (fn && fn->partial && fn->partial->line_seen == lineno)
809: {
810: c = inf_skip_spaces (' ');
811: if (c == EOF)
812: break;
813: if (c == '(')
814: {
815: c = inf_skip_spaces (' ');
816: if (c == ')')
817: {
818: fprintf (outf, " _PARAMS((%s))", fn->params);
819: }
820: else
821: {
822: putc ('(', outf);
823: INF_UNGET (c);
824: }
825: }
826: else
827: fprintf (outf, " %c", c);
828: }
829: }
830: else
831: {
832: putc (c, outf);
833: if (c == '\n')
834: break;
835: }
836: }
837: if (c == EOF)
838: break;
839: lineno++;
840: }
841: if (rbrac_line < 0)
842: write_rbrac ();
843:
844: fclose (outf);
845:
846: return 0;
847: }
848:
849:
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