1 /* fix-header.c - Make C header file suitable for C++.
2 Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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
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.
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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* This program massages a system include file (such as stdio.h),
19 into a form more conforming with ANSI/POSIX, and more suitable for C++:
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.
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.
31 * The program can be given a list of (names of) required standard
32 functions (such as fclose for stdio.h). If a required function
33 is not seen in the input, then a prototype for it will be
34 written to the output.
36 * If all of the non-comment code of the original file is protected
37 against multiple inclusion:
40 <body of include file>
42 then extra matter added to the include file is placed inside the <body>.
44 * If the input file is OK (nothing needs to be done);
45 the output file is not written (nor removed if it exists).
47 There are also some special actions that are done for certain
48 well-known standard include files:
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
55 * If argv[1] is "errno.h", errno is declared if it was missing.
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.
62 fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS]
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 * OPTIONS are such as you would pass to cpp.
71 Written by Per Bothner <bothner@cygnus.com>, July 1993. */
79 #include "gansidecl.h"
85 extern void cpp_fatal ();
87 #if !__STDC__ && !defined(const)
88 #define const /* nothing */
94 int partial_count
= 0;
97 /* We no longer need to add extern "C", because cpp implicitly
98 forces the standard include files to be treated as C. */
99 /*#define ADD_MISSING_EXTERN_C 1 */
101 #if ADD_MISSING_EXTERN_C
102 int missing_extern_C_count
= 0;
105 #include "xsys-protos.h"
107 #ifdef FIXPROTO_IGNORE_LIST
108 /* This is a currently unused feature. */
110 /* List of files and directories to ignore.
111 A directory name (ending in '/') means ignore anything in that
112 directory. (It might be more efficient to do directory pruning
113 earlier in fixproto, but this is simpler and easier to customize.) */
115 static char *files_to_ignore
[] = {
126 /* Certain standard files get extra treatment */
137 /* A NAMELIST is a sequence of names, separated by '\0', and terminated
138 by an empty name (i.e. by "\0\0"). */
140 typedef const char *namelist
;
142 /* The following macros provide the bits for symbol_flags. */
143 typedef int symbol_flags
;
145 /* Used to mark names defined in the ANSI/ISO C standard. */
146 #define ANSI_SYMBOL 1
148 /* Used to mark names defined in the Posix.1 or Posix.2 standard. */
149 #define POSIX1_SYMBOL 2
150 #define POSIX2_SYMBOL 4
152 /* Used to mark names defined in X/Open Portability Guide. */
153 #define XOPEN_SYMBOL 8
154 /* Used to mark names defined in X/Open UNIX Extensions. */
155 #define XOPEN_EXTENDED_SYMBOL 16
157 /* Used to indicate names that are not functions */
158 #define MACRO_SYMBOL 512
165 #define SYMBOL_TABLE_SIZE 10
166 struct symbol_list symbol_table
[SYMBOL_TABLE_SIZE
];
167 int cur_symbol_table_size
;
170 add_symbols (flags
, names
)
174 symbol_table
[cur_symbol_table_size
].flags
= flags
;
175 symbol_table
[cur_symbol_table_size
].names
= names
;
176 cur_symbol_table_size
++;
177 if (cur_symbol_table_size
>= SYMBOL_TABLE_SIZE
)
178 fatal ("too many calls to add_symbols");
179 symbol_table
[cur_symbol_table_size
].names
= NULL
; /* Termination. */
182 struct std_include_entry
{
188 const char NONE
[] = ""; /* The empty namelist. */
190 /* Special name to indicate a continuation line in std_include_table. */
191 const char CONTINUED
[] = "";
193 struct std_include_entry
*include_entry
;
195 struct std_include_entry std_include_table
[] = {
196 { "ctype.h", ANSI_SYMBOL
,
197 "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\
198 isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" },
200 { "dirent.h", POSIX1_SYMBOL
, "closedir\0opendir\0readdir\0rewinddir\0"},
202 { "errno.h", ANSI_SYMBOL
|MACRO_SYMBOL
, "errno\0" },
204 /* ANSI_SYMBOL is wrong, but ... */
205 { "curses.h", ANSI_SYMBOL
, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\
206 mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\
207 scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\
208 waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\
209 wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" },
211 { "fcntl.h", POSIX1_SYMBOL
, "creat\0fcntl\0open\0" },
213 /* Maybe also "getgrent fgetgrent setgrent endgrent" */
214 { "grp.h", POSIX1_SYMBOL
, "getgrgid\0getgrnam\0" },
216 /*{ "limit.h", ... provided by gcc }, */
218 { "locale.h", ANSI_SYMBOL
, "localeconv\0setlocale\0" },
220 { "math.h", ANSI_SYMBOL
,
221 "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\
222 fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\
225 { CONTINUED
, ANSI_SYMBOL
|MACRO_SYMBOL
, "HUGE_VAL\0" },
227 { "pwd.h", POSIX1_SYMBOL
, "getpwnam\0getpwuid\0" },
229 /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */
230 { "setjmp.h", ANSI_SYMBOL
, "longjmp\0setjmp\0" },
232 /* Left out signal() - its prototype is too complex for us!
233 Also left out "sigaction sigaddset sigdelset sigemptyset
234 sigfillset sigismember sigpending sigprocmask sigsuspend"
235 because these need sigset_t or struct sigaction.
236 Most systems that provide them will also declare them. */
237 { "signal.h", ANSI_SYMBOL
, "kill\0raise\0" },
239 { "stdio.h", ANSI_SYMBOL
,
240 "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\
241 fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\
242 fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\00perror\0popen\0\
243 printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\
244 setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\
246 { CONTINUED
, POSIX1_SYMBOL
, "fdopen\0fileno\0" },
247 { CONTINUED
, POSIX2_SYMBOL
, "pclose\0popen\0" }, /* I think ... */
248 /* Should perhaps also handle NULL, EOF, ... ? */
250 /* "div ldiv", - ignored because these depend on div_t, ldiv_t
251 ignore these: "mblen mbstowcs mbstowc wcstombs wctomb"
252 Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions.
253 Should perhaps also add NULL */
254 { "stdlib.h", ANSI_SYMBOL
,
255 "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\
256 exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\
257 srand\0strtod\0strtol\0strtoul\0system\0" },
258 { CONTINUED
, ANSI_SYMBOL
|MACRO_SYMBOL
, "EXIT_FAILURE\0EXIT_SUCCESS\0" },
260 { "string.h", ANSI_SYMBOL
, "memchr\0memcmp\0memcpy\0memmove\0memset\0\
261 strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\
262 strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\
263 strtok\0strxfrm\0" },
264 /* Should perhaps also add NULL and size_t */
266 { "strings.h", XOPEN_EXTENDED_SYMBOL
,
267 "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" },
269 { "strops.h", XOPEN_EXTENDED_SYMBOL
, "ioctl\0" },
271 /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines
272 ioctl in <strops.h>. However, many systems have it is sys/ioctl.h,
273 and many systems do have <sys/ioctl.h> but not <strops.h>. */
274 { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL
, "ioctl\0" },
276 { "sys/socket.h", XOPEN_EXTENDED_SYMBOL
, "socket\0" },
278 { "sys/stat.h", POSIX1_SYMBOL
,
279 "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" },
280 { CONTINUED
, POSIX1_SYMBOL
|MACRO_SYMBOL
,
281 "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\
282 S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" },
283 { CONTINUED
, XOPEN_EXTENDED_SYMBOL
, "fchmod\0" },
286 /* How do we handle fd_set? */
287 { "sys/time.h", XOPEN_EXTENDED_SYMBOL
, "select\0" },
288 { "sys/select.h", XOPEN_EXTENDED_SYMBOL
/* fake */, "select\0" },
291 { "sys/times.h", POSIX1_SYMBOL
, "times\0" },
292 /* "sys/types.h" add types (not in old g++-include) */
294 { "sys/utsname.h", POSIX1_SYMBOL
, "uname\0" },
296 { "sys/wait.h", POSIX1_SYMBOL
, "wait\0waitpid\0" },
297 { CONTINUED
, POSIX1_SYMBOL
|MACRO_SYMBOL
,
298 "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\
299 WTERMSIG\0WNOHANG\0WNOTRACED\0" },
301 { "tar.h", POSIX1_SYMBOL
, NONE
},
303 { "termios.h", POSIX1_SYMBOL
,
304 "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" },
306 { "time.h", ANSI_SYMBOL
,
307 "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" },
309 { "unistd.h", POSIX1_SYMBOL
,
310 "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\
311 dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\
312 getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\
313 getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\
314 setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\
315 ttyname\0unlink\0write\0" },
316 { CONTINUED
, POSIX2_SYMBOL
, "getopt\0" },
317 { CONTINUED
, XOPEN_EXTENDED_SYMBOL
,
318 "lockf\0gethostid\0gethostname\0readlink\0" },
320 { "utime.h", POSIX1_SYMBOL
, "utime\0" },
325 enum special_file special_file_handling
= no_special
;
327 /* They are set if the corresponding macro has been seen. */
328 /* The following are only used when handling sys/stat.h */
329 int seen_S_IFBLK
= 0, seen_S_ISBLK
= 0;
330 int seen_S_IFCHR
= 0, seen_S_ISCHR
= 0;
331 int seen_S_IFDIR
= 0, seen_S_ISDIR
= 0;
332 int seen_S_IFIFO
= 0, seen_S_ISFIFO
= 0;
333 int seen_S_IFLNK
= 0, seen_S_ISLNK
= 0;
334 int seen_S_IFREG
= 0, seen_S_ISREG
= 0;
335 /* The following are only used when handling errno.h */
337 /* The following are only used when handling stdlib.h */
338 int seen_EXIT_FAILURE
= 0, seen_EXIT_SUCCESS
= 0;
340 /* Wrapper around free, to avoid prototype clashes. */
349 /* Avoid error if config defines abort as fancy_abort.
350 It's not worth "really" implementing this because ordinary
351 compiler users never run fix-header. */
359 #define obstack_chunk_alloc xmalloc
360 #define obstack_chunk_free xfree
361 struct obstack scan_file_obstack
;
363 /* NOTE: If you edit this, also edit gen-protos.c !! */
366 lookup_std_proto (name
, name_length
)
370 int i
= hashf (name
, name_length
, HASH_SIZE
);
375 if (hash_tab
[i
] == 0)
377 fn
= &std_protos
[hash_tab
[i
]];
378 if (strlen (fn
->fname
) == name_length
379 && strncmp (fn
->fname
, name
, name_length
) == 0)
381 i
= (i
+1) % HASH_SIZE
;
388 int inc_filename_length
;
389 char *progname
= "fix-header";
393 int lbrac_line
, rbrac_line
;
395 int required_unseen_count
= 0;
396 int required_other
= 0;
402 #if ADD_MISSING_EXTERN_C
403 if (missing_extern_C_count
+ required_unseen_count
> 0)
404 fprintf (outf
, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
409 fprintf (outf
, "#ifndef _PARAMS\n");
410 fprintf (outf
, "#if defined(__STDC__) || defined(__cplusplus)\n");
411 fprintf (outf
, "#define _PARAMS(ARGS) ARGS\n");
412 fprintf (outf
, "#else\n");
413 fprintf (outf
, "#define _PARAMS(ARGS) ()\n");
414 fprintf (outf
, "#endif\n#endif /* _PARAMS */\n");
420 struct partial_proto
*next
;
421 char *fname
; /* name of function */
422 char *rtype
; /* return type */
427 struct partial_proto
*partial_proto_list
= NULL
;
429 struct partial_proto required_dummy_proto
, seen_dummy_proto
;
430 #define REQUIRED(FN) ((FN)->partial == &required_dummy_proto)
431 #define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto)
432 #define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto)
433 #define SEEN(FN) ((FN)->partial == &seen_dummy_proto)
436 recognized_macro (fname
)
439 /* The original include file defines fname as a macro. */
440 struct fn_decl
*fn
= lookup_std_proto (fname
, strlen (fname
));
442 /* Since fname is a macro, don't require a prototype for it. */
446 required_unseen_count
--;
450 switch (special_file_handling
)
453 if (strcmp (fname
, "errno") == 0 && !seen_errno
)
454 seen_errno
= 1, required_other
--;
457 if (strcmp (fname
, "EXIT_FAILURE") == 0 && !seen_EXIT_FAILURE
)
458 seen_EXIT_FAILURE
= 1, required_other
--;
459 if (strcmp (fname
, "EXIT_SUCCESS") == 0 && !seen_EXIT_SUCCESS
)
460 seen_EXIT_SUCCESS
= 1, required_other
--;
463 if (fname
[0] == 'S' && fname
[1] == '_')
465 if (strcmp (fname
, "S_IFBLK") == 0) seen_S_IFBLK
++;
466 else if (strcmp (fname
, "S_ISBLK") == 0) seen_S_ISBLK
++;
467 else if (strcmp (fname
, "S_IFCHR") == 0) seen_S_IFCHR
++;
468 else if (strcmp (fname
, "S_ISCHR") == 0) seen_S_ISCHR
++;
469 else if (strcmp (fname
, "S_IFDIR") == 0) seen_S_IFDIR
++;
470 else if (strcmp (fname
, "S_ISDIR") == 0) seen_S_ISDIR
++;
471 else if (strcmp (fname
, "S_IFIFO") == 0) seen_S_IFIFO
++;
472 else if (strcmp (fname
, "S_ISFIFO") == 0) seen_S_ISFIFO
++;
473 else if (strcmp (fname
, "S_IFLNK") == 0) seen_S_IFLNK
++;
474 else if (strcmp (fname
, "S_ISLNK") == 0) seen_S_ISLNK
++;
475 else if (strcmp (fname
, "S_IFREG") == 0) seen_S_IFREG
++;
476 else if (strcmp (fname
, "S_ISREG") == 0) seen_S_ISREG
++;
482 recognized_extern (name
, name_length
, type
, type_length
)
485 int name_length
, type_length
;
487 switch (special_file_handling
)
490 if (strcmp (name
, "errno") == 0 && !seen_errno
)
491 seen_errno
= 1, required_other
--;
496 /* Called by scan_decls if it saw a function definition for a function
497 named FNAME, with return type RTYPE, and argument list ARGS,
498 in source file FILE_SEEN on line LINE_SEEN.
499 KIND is 'I' for an inline function;
500 'F' if a normal function declaration preceded by 'extern "C"'
501 (or nested inside 'extern "C"' braces); or
502 'f' for other function declarations. */
505 recognized_function (fname
, fname_length
,
506 kind
, rtype
, rtype_length
,
507 have_arg_list
, file_seen
, line_seen
)
510 int kind
; /* One of 'f' 'F' or 'I' */
517 struct partial_proto
*partial
;
520 #if ADD_MISSING_EXTERN_C
522 missing_extern_C_count
++;
525 fn
= lookup_std_proto (fname
, fname_length
);
527 /* Remove the function from the list of required function. */
531 required_unseen_count
--;
535 /* If we have a full prototype, we're done. */
539 if (kind
== 'I') /* don't edit inline function */
542 /* If the partial prototype was included from some other file,
543 we don't need to patch it up (in this run). */
544 i
= strlen (file_seen
);
545 if (i
< inc_filename_length
546 || strcmp (inc_filename
, file_seen
+ (i
- inc_filename_length
)) != 0)
551 if (fn
->params
[0] == '\0' || strcmp (fn
->params
, "void") == 0)
554 /* We only have a partial function declaration,
555 so remember that we have to add a complete prototype. */
557 partial
= (struct partial_proto
*)
558 obstack_alloc (&scan_file_obstack
, sizeof (struct partial_proto
));
559 partial
->fname
= obstack_alloc (&scan_file_obstack
, fname_length
+ 1);
560 bcopy (fname
, partial
->fname
, fname_length
);
561 partial
->fname
[fname_length
] = 0;
562 partial
->rtype
= obstack_alloc (&scan_file_obstack
, rtype_length
+ 1);
563 sprintf (partial
->rtype
, "%.*s", rtype_length
, rtype
);
564 partial
->line_seen
= line_seen
;
566 fn
->partial
= partial
;
567 partial
->next
= partial_proto_list
;
568 partial_proto_list
= partial
;
571 fprintf (stderr
, "(%s: %s non-prototype function declaration.)\n",
572 inc_filename
, partial
->fname
);
576 /* For any name in NAMES that is defined as a macro,
577 call recognized_macro on it. */
580 check_macro_names (pfile
, names
)
586 if (cpp_lookup (pfile
, names
, -1, -1))
587 recognized_macro (names
);
588 names
+= strlen (names
) + 1;
593 read_scan_file (in_fname
, argc
, argv
)
599 cpp_options scan_options
;
602 register struct symbol_list
*cur_symbols
;
604 obstack_init (&scan_file_obstack
);
606 cpp_reader_init (&scan_in
);
607 scan_in
.data
= &scan_options
;
608 cpp_options_init (&scan_options
);
609 i
= cpp_handle_options (&scan_in
, argc
, argv
);
610 if (i
< argc
&& ! CPP_FATAL_ERRORS (&scan_in
))
611 cpp_fatal (&scan_in
, "Invalid option `%s'", argv
[i
]);
612 if (CPP_FATAL_ERRORS (&scan_in
))
613 exit (FATAL_EXIT_CODE
);
615 if (! cpp_start_read (&scan_in
, in_fname
))
616 exit (FATAL_EXIT_CODE
);
617 CPP_OPTIONS (&scan_in
)->no_line_commands
= 1;
619 scan_decls (&scan_in
, argc
, argv
);
620 for (cur_symbols
= &symbol_table
[0]; cur_symbols
->names
; cur_symbols
++)
621 check_macro_names (&scan_in
, cur_symbols
->names
);
623 if (verbose
&& (scan_in
.errors
+ warnings
) > 0)
624 fprintf (stderr
, "(%s: %d errors and %d warnings from cpp)\n",
625 inc_filename
, scan_in
.errors
, warnings
);
627 exit (SUCCESS_EXIT_CODE
);
629 /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf.
630 If so, those functions are also required. */
631 if (special_file_handling
== stdio_h
632 && (fn
= lookup_std_proto ("_filbuf", 7)) != NULL
)
634 static char getchar_call
[] = "getchar();";
636 = cpp_push_buffer (&scan_in
, getchar_call
, sizeof(getchar_call
) - 1);
637 int old_written
= CPP_WRITTEN (&scan_in
);
640 /* Scan the macro expansion of "getchar();". */
643 enum cpp_token token
= cpp_get_token (&scan_in
);
644 int length
= CPP_WRITTEN (&scan_in
) - old_written
;
645 CPP_SET_WRITTEN (&scan_in
, old_written
);
646 if (token
== CPP_EOF
) /* Should not happen ... */
648 if (token
== CPP_POP
&& CPP_BUFFER (&scan_in
) == buf
)
650 cpp_pop_buffer (&scan_in
);
653 if (token
== CPP_NAME
&& length
== 7
654 && strcmp ("_filbuf", scan_in
.token_buffer
+ old_written
) == 0)
659 int need_filbuf
= !SEEN (fn
) && !REQUIRED (fn
);
660 struct fn_decl
*flsbuf_fn
= lookup_std_proto ("_flsbuf", 7);
662 = flsbuf_fn
&& !SEEN (flsbuf_fn
) && !REQUIRED (flsbuf_fn
);
664 /* Append "_filbuf" and/or "_flsbuf" to the required functions. */
665 if (need_filbuf
+ need_flsbuf
)
671 SET_REQUIRED (flsbuf_fn
);
672 if (need_flsbuf
+ need_filbuf
== 2)
673 new_list
= "_filbuf\0_flsbuf\0";
674 else if (need_flsbuf
)
675 new_list
= "_flsbuf\0";
676 else /* if (need_flsbuf) */
677 new_list
= "_filbuf\0";
678 add_symbols (ANSI_SYMBOL
, new_list
);
679 required_unseen_count
+= need_filbuf
+ need_flsbuf
;
684 if (required_unseen_count
+ partial_count
+ required_other
685 #if ADD_MISSING_EXTERN_C
686 + missing_extern_C_count
691 fprintf (stderr
, "%s: OK, nothing needs to be done.\n", inc_filename
);
692 exit (SUCCESS_EXIT_CODE
);
695 fprintf (stderr
, "%s: fixing %s\n", progname
, inc_filename
);
698 if (required_unseen_count
)
699 fprintf (stderr
, "%s: %d missing function declarations.\n",
700 inc_filename
, required_unseen_count
);
702 fprintf (stderr
, "%s: %d non-prototype function declarations.\n",
703 inc_filename
, partial_count
);
704 #if ADD_MISSING_EXTERN_C
705 if (missing_extern_C_count
)
707 "%s: %d declarations not protected by extern \"C\".\n",
708 inc_filename
, missing_extern_C_count
);
718 register struct symbol_list
*cur_symbols
;
720 if (required_unseen_count
)
722 #ifdef NO_IMPLICIT_EXTERN_C
723 fprintf (outf
, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
727 /* Now we print out prototypes for those functions that we haven't seen. */
728 for (cur_symbols
= &symbol_table
[0]; cur_symbols
->names
; cur_symbols
++)
730 int if_was_emitted
= 0;
732 cptr
= cur_symbols
->names
;
733 for ( ; (name_len
= strlen (cptr
)) != 0; cptr
+= name_len
+ 1)
735 int macro_protect
= 0;
737 if (cur_symbols
->flags
& MACRO_SYMBOL
)
740 fn
= lookup_std_proto (cptr
, name_len
);
741 if (fn
== NULL
|| !REQUIRED (fn
))
746 /* what about curses. ??? or _flsbuf/_filbuf ??? */
747 if (cur_symbols
->flags
& ANSI_SYMBOL
)
749 "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n");
750 else if (cur_symbols
->flags
& (POSIX1_SYMBOL
|POSIX2_SYMBOL
))
752 "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\
753 ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\
754 : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n");
755 else if (cur_symbols
->flags
& XOPEN_SYMBOL
)
758 "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\
759 || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n");
761 else if (cur_symbols
->flags
& XOPEN_EXTENDED_SYMBOL
)
764 "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\
765 || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n");
769 fatal ("internal error for function %s", fn
->fname
);
774 /* In the case of memmove, protect in case the application
775 defines it as a macro before including the header. */
776 if (!strcmp (fn
->fname
, "memmove")
777 || !strcmp (fn
->fname
, "vprintf")
778 || !strcmp (fn
->fname
, "vfprintf")
779 || !strcmp (fn
->fname
, "vsprintf")
780 || !strcmp (fn
->fname
, "rewinddir"))
784 fprintf (outf
, "#ifndef %s\n", fn
->fname
);
785 fprintf (outf
, "extern %s %s (%s);\n",
786 fn
->rtype
, fn
->fname
, fn
->params
);
788 fprintf (outf
, "#endif\n");
792 "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n");
794 if (required_unseen_count
)
796 #ifdef NO_IMPLICIT_EXTERN_C
797 fprintf (outf
, "#ifdef __cplusplus\n}\n#endif\n");
801 switch (special_file_handling
)
805 fprintf (outf
, "extern int errno;\n");
808 if (!seen_EXIT_FAILURE
)
809 fprintf (outf
, "#define EXIT_FAILURE 1\n");
810 if (!seen_EXIT_SUCCESS
)
811 fprintf (outf
, "#define EXIT_SUCCESS 0\n");
814 if (!seen_S_ISBLK
&& seen_S_IFBLK
)
816 "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n");
817 if (!seen_S_ISCHR
&& seen_S_IFCHR
)
819 "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n");
820 if (!seen_S_ISDIR
&& seen_S_IFDIR
)
822 "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n");
823 if (!seen_S_ISFIFO
&& seen_S_IFIFO
)
825 "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n");
826 if (!seen_S_ISLNK
&& seen_S_IFLNK
)
828 "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n");
829 if (!seen_S_ISREG
&& seen_S_IFREG
)
831 "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n");
836 #if ADD_MISSING_EXTERN_C
837 if (missing_extern_C_count
+ required_unseen_count
> 0)
838 fprintf (outf
, "#ifdef __cplusplus\n}\n#endif\n");
846 char *copy
= (char *) xmalloc (strlen (str
) + 1);
851 /* Returns 1 iff the file is properly protected from multiple inclusion:
858 #define INF_GET() (inf_ptr < inf_limit ? *(unsigned char *) inf_ptr++ : EOF)
859 #define INF_UNGET(c) ((c)!=EOF && inf_ptr--)
867 if (c
== ' ' || c
== '\t')
885 source_lineno
++, lineno
++;
888 else if ((c
= INF_GET ()) == '/')
898 /* Read into STR from inf_buffer upto DELIM. */
901 inf_read_upto (str
, delim
)
909 if (ch
== EOF
|| ch
== delim
)
911 SSTRING_PUT (str
, ch
);
913 MAKE_SSTRING_SPACE (str
, 1);
919 inf_scan_ident (s
, c
)
924 if (isalpha (c
) || c
== '_')
930 if (c
== EOF
|| !(isalnum (c
) || c
== '_'))
934 MAKE_SSTRING_SPACE (s
, 1);
939 /* Returns 1 if the file is correctly protected against multiple
940 inclusion, setting *ifndef_line to the line number of the initial #ifndef
941 and setting *endif_line to the final #endif.
942 Otherwise return 0. */
945 check_protection (ifndef_line
, endif_line
)
946 int *ifndef_line
, *endif_line
;
949 int if_nesting
= 1; /* Level of nesting of #if's */
950 char *protect_name
= NULL
; /* Identifier following initial #ifndef */
953 /* Skip initial white space (including comments). */
956 c
= inf_skip_spaces (' ');
964 c
= inf_scan_ident (&buf
, inf_skip_spaces (' '));
965 if (SSTRING_LENGTH (&buf
) == 0 || strcmp (buf
.base
, "ifndef") != 0)
968 /* So far so good: We've seen an initial #ifndef. */
969 *ifndef_line
= lineno
;
970 c
= inf_scan_ident (&buf
, inf_skip_spaces (c
));
971 if (SSTRING_LENGTH (&buf
) == 0 || c
== EOF
)
973 protect_name
= xstrdup (buf
.base
);
976 c
= inf_read_upto (&buf
, '\n');
983 c
= inf_skip_spaces (' ');
993 c
= inf_scan_ident (&buf
, inf_skip_spaces (' '));
994 if (SSTRING_LENGTH (&buf
) == 0)
996 else if (!strcmp (buf
.base
, "ifndef")
997 || !strcmp (buf
.base
, "ifdef") || !strcmp (buf
.base
, "if"))
1001 else if (!strcmp (buf
.base
, "endif"))
1004 if (if_nesting
== 0)
1007 else if (!strcmp (buf
.base
, "else"))
1009 if (if_nesting
== 1)
1012 else if (!strcmp (buf
.base
, "define"))
1014 if (if_nesting
!= 1)
1016 c
= inf_skip_spaces (c
);
1017 c
= inf_scan_ident (&buf
, c
);
1018 if (buf
.base
[0] > 0 && strcmp (buf
.base
, protect_name
) == 0)
1024 if (c
== '\n' || c
== EOF
)
1035 *endif_line
= lineno
;
1036 /* Skip final white space (including comments). */
1039 c
= inf_skip_spaces (' ');
1058 const char *cptr
, **pptr
;
1063 register struct symbol_list
*cur_symbols
;
1065 if (argv
[0] && argv
[0][0])
1070 for (p
= argv
[0]; *p
; p
++)
1073 progname
= progname
? progname
+1 : argv
[0];
1078 fprintf (stderr
, "%s: Usage: foo.h infile.h outfile.h options\n",
1080 exit (FATAL_EXIT_CODE
);
1083 inc_filename
= argv
[1];
1084 inc_filename_length
= strlen (inc_filename
);
1086 #ifdef FIXPROTO_IGNORE_LIST
1087 for (i
= 0; files_to_ignore
[i
] != NULL
; i
++)
1089 char *ignore_name
= files_to_ignore
[i
];
1090 int ignore_len
= strlen (ignore_name
);
1091 if (strncmp (inc_filename
, ignore_name
, ignore_len
) == 0)
1093 if (ignore_name
[ignore_len
-1] == '/'
1094 || inc_filename
[ignore_len
] == '\0')
1097 fprintf (stderr
, "%s: ignoring %s\n", progname
, inc_filename
);
1098 exit (SUCCESS_EXIT_CODE
);
1105 if (strcmp (inc_filename
, "sys/stat.h") == 0)
1106 special_file_handling
= sys_stat_h
;
1107 else if (strcmp (inc_filename
, "errno.h") == 0)
1108 special_file_handling
= errno_h
, required_other
++;
1109 else if (strcmp (inc_filename
, "stdlib.h") == 0)
1110 special_file_handling
= stdlib_h
, required_other
+=2;
1111 else if (strcmp (inc_filename
, "stdio.h") == 0)
1112 special_file_handling
= stdio_h
;
1113 include_entry
= std_include_table
;
1114 while (include_entry
->name
!= NULL
1115 && (include_entry
->name
== CONTINUED
1116 || strcmp (inc_filename
, include_entry
->name
) != 0))
1119 if (include_entry
->name
!= NULL
)
1121 struct std_include_entry
*entry
;
1122 cur_symbol_table_size
= 0;
1123 for (entry
= include_entry
; ;)
1125 add_symbols (entry
->flags
, entry
->names
);
1127 if (entry
->name
!= CONTINUED
)
1132 symbol_table
[0].names
= NULL
;
1134 /* Count and mark the prototypes required for this include file. */
1135 for (cur_symbols
= &symbol_table
[0]; cur_symbols
->names
; cur_symbols
++)
1138 if (cur_symbols
->flags
& MACRO_SYMBOL
)
1140 cptr
= cur_symbols
->names
;
1141 for ( ; (name_len
= strlen (cptr
)) != 0; cptr
+= name_len
+ 1)
1143 struct fn_decl
*fn
= lookup_std_proto (cptr
, name_len
);
1144 required_unseen_count
++;
1146 fprintf (stderr
, "Internal error: No prototype for %s\n", cptr
);
1152 read_scan_file (argv
[2], argc
- 4, argv
+ 4);
1154 inf_fd
= open (argv
[2], O_RDONLY
, 0666);
1157 fprintf (stderr
, "%s: Cannot open '%s' for reading -",
1160 exit (FATAL_EXIT_CODE
);
1162 if (fstat (inf_fd
, &sbuf
) < 0)
1164 fprintf (stderr
, "%s: Cannot get size of '%s' -", progname
, argv
[2]);
1166 exit (FATAL_EXIT_CODE
);
1168 inf_size
= sbuf
.st_size
;
1169 inf_buffer
= (char *) xmalloc (inf_size
+ 2);
1170 inf_buffer
[inf_size
] = '\n';
1171 inf_buffer
[inf_size
+ 1] = '\0';
1172 inf_limit
= inf_buffer
+ inf_size
;
1173 inf_ptr
= inf_buffer
;
1178 long i
= read (inf_fd
, inf_buffer
+ inf_size
- to_read
, to_read
);
1181 fprintf (stderr
, "%s: Failed to read '%s' -", progname
, argv
[2]);
1183 exit (FATAL_EXIT_CODE
);
1187 inf_size
-= to_read
;
1195 /* If file doesn't end with '\n', add one. */
1196 if (inf_limit
> inf_buffer
&& inf_limit
[-1] != '\n')
1200 outf
= fopen (argv
[3], "w");
1203 fprintf (stderr
, "%s: Cannot open '%s' for writing -",
1206 exit (FATAL_EXIT_CODE
);
1211 if (check_protection (&ifndef_line
, &endif_line
))
1213 lbrac_line
= ifndef_line
+1;
1214 rbrac_line
= endif_line
;
1222 /* Reset input file. */
1223 inf_ptr
= inf_buffer
;
1228 if (lineno
== lbrac_line
)
1230 if (lineno
== rbrac_line
)
1238 if (isalpha (c
) || c
== '_')
1240 c
= inf_scan_ident (&buf
, c
);
1242 fputs (buf
.base
, outf
);
1243 fn
= lookup_std_proto (buf
.base
, strlen (buf
.base
));
1244 /* We only want to edit the declaration matching the one
1245 seen by scan-decls, as there can be multiple
1246 declarations, selected by #ifdef __STDC__ or whatever. */
1247 if (fn
&& fn
->partial
&& fn
->partial
->line_seen
== lineno
)
1249 c
= inf_skip_spaces (' ');
1254 c
= inf_skip_spaces (' ');
1257 fprintf (outf
, " _PARAMS((%s))", fn
->params
);
1266 fprintf (outf
, " %c", c
);
1288 /* Stub error functions. These replace cpperror.c,
1289 because we want to suppress error messages. */
1292 cpp_file_line_for_message (pfile
, filename
, line
, column
)
1300 fprintf (stderr
, "%s:%d:%d: ", filename
, line
, column
);
1302 fprintf (stderr
, "%s:%d: ", filename
, line
);
1306 cpp_print_containing_files (pfile
)
1311 /* IS_ERROR is 2 for fatal error, 1 for error, 0 for warning */
1313 void cpp_message (pfile
, is_error
, msg
, arg1
, arg2
, arg3
)
1317 char *arg1
, *arg2
, *arg3
;
1321 else if (is_error
> 1)
1322 pfile
->errors
= CPP_FATAL_LIMIT
;
1326 fprintf (stderr
, "warning: ");
1327 fprintf (stderr
, msg
, arg1
, arg2
, arg3
);
1328 fprintf (stderr
, "\n");
1335 fprintf (stderr
, "%s: %s: ", progname
, inc_filename
);
1336 fprintf (stderr
, str
, arg
);
1337 fprintf (stderr
, "\n");
1338 exit (FATAL_EXIT_CODE
);
1342 cpp_fatal (pfile
, str
, arg
)
1350 cpp_pfatal_with_name (pfile
, name
)
1354 cpp_perror_with_name (pfile
, name
);
1355 exit (FATAL_EXIT_CODE
);