1/* fix-header.c - Make C header file suitable for C++.
2   Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998,
3   1999, 2000, 2001 Free Software Foundation, Inc.
4
5This program is free software; you can redistribute it and/or modify it
6under the terms of the GNU General Public License as published by the
7Free Software Foundation; either version 2, or (at your option) any
8later version.
9
10This program is distributed in the hope that it will be useful,
11but WITHOUT ANY WARRANTY; without even the implied warranty of
12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License
16along with this program; if not, write to the Free Software
17Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
18
19/* This program massages a system include file (such as stdio.h),
20   into a form that is compatible with GNU C and GNU C++.
21
22   * extern "C" { ... } braces are added (inside #ifndef __cplusplus),
23   if they seem to be needed.  These prevent C++ compilers from name
24   mangling the functions inside the braces.
25
26   * If an old-style incomplete function declaration is seen (without
27   an argument list), and it is a "standard" function listed in
28   the file sys-protos.h (and with a non-empty argument list), then
29   the declaration is converted to a complete prototype by replacing
30   the empty parameter list with the argument list from sys-protos.h.
31
32   * The program can be given a list of (names of) required standard
33   functions (such as fclose for stdio.h).  If a required function
34   is not seen in the input, then a prototype for it will be
35   written to the output.
36
37   * If all of the non-comment code of the original file is protected
38   against multiple inclusion:
39	#ifndef FOO
40	#define FOO
41	<body of include file>
42	#endif
43   then extra matter added to the include file is placed inside the <body>.
44
45   * If the input file is OK (nothing needs to be done);
46   the output file is not written (nor removed if it exists).
47
48   There are also some special actions that are done for certain
49   well-known standard include files:
50
51   * If argv[1] is "sys/stat.h", the Posix.1 macros
52   S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISLNK, S_ISREG are added if
53   they were missing, and the corresponding "traditional" S_IFxxx
54   macros were defined.
55
56   * If argv[1] is "errno.h", errno is declared if it was missing.
57
58   * TODO:  The input file should be read complete into memory, because:
59   a) it needs to be scanned twice anyway, and
60   b) it would be nice to allow update in place.
61
62   Usage:
63	fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS]
64   where:
65   * FOO.H is the relative file name of the include file,
66   as it would be #include'd by a C file.  (E.g. stdio.h)
67   * INFILE.H is a full pathname for the input file (e.g. /usr/include/stdio.h)
68   * OUTFILE.H is the full pathname for where to write the output file,
69   if anything needs to be done.  (e.g. ./include/stdio.h)
70   * OPTIONS are such as you would pass to cpp.
71
72   Written by Per Bothner <bothner@cygnus.com>, July 1993.  */
73
74#include "hconfig.h"
75#include "system.h"
76#include "obstack.h"
77#include "scan.h"
78#include "cpplib.h"
79
80static void v_fatal PARAMS ((const char *, va_list)) ATTRIBUTE_PRINTF (1,0) ATTRIBUTE_NORETURN;
81static void fatal PARAMS ((const char *, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
82
83sstring buf;
84
85int verbose = 0;
86int partial_count = 0;
87int warnings = 0;
88
89/* We no longer need to add extern "C", because cpp implicitly
90   forces the standard include files to be treated as C.  */
91/*#define ADD_MISSING_EXTERN_C 1 */
92
93#if ADD_MISSING_EXTERN_C
94int missing_extern_C_count = 0;
95#endif
96
97#include "xsys-protos.h"
98
99#ifdef FIXPROTO_IGNORE_LIST
100/* This is a currently unused feature.  */
101
102/* List of files and directories to ignore.
103   A directory name (ending in '/') means ignore anything in that
104   directory.  (It might be more efficient to do directory pruning
105   earlier in fixproto, but this is simpler and easier to customize.) */
106
107static const char *const files_to_ignore[] = {
108  "X11/",
109  FIXPROTO_IGNORE_LIST
110  0
111};
112#endif
113
114char *inf_buffer;
115char *inf_limit;
116char *inf_ptr;
117static const char *cur_file;
118
119/* Certain standard files get extra treatment */
120
121enum special_file
122{
123  no_special,
124#ifdef errno_h
125#undef errno_h
126#endif
127  errno_h,
128#ifdef stdio_h
129#undef stdio_h
130#endif
131  stdio_h,
132#ifdef stdlib_h
133#undef stdlib_h
134#endif
135  stdlib_h,
136#ifdef sys_stat_h
137#undef sys_stat_h
138#endif
139  sys_stat_h
140};
141
142/* A NAMELIST is a sequence of names, separated by '\0', and terminated
143   by an empty name (i.e. by "\0\0").  */
144
145typedef const char *namelist;
146
147/* The following macros provide the bits for symbol_flags.  */
148typedef int symbol_flags;
149
150/* Used to mark names defined in the ANSI/ISO C standard.  */
151#define ANSI_SYMBOL 1
152
153/* We no longer massage include files for POSIX or XOPEN symbols,
154   as there are now several versions of the POSIX and XOPEN standards,
155   and it would be a maintenance nightmare for us to track them all.
156   Better to be compatible with the system include files.  */
157/*#define ADD_MISSING_POSIX 1 */
158/*#define ADD_MISSING_XOPEN 1 */
159
160#if ADD_MISSING_POSIX
161/* Used to mark names defined in the Posix.1 or Posix.2 standard.  */
162#define POSIX1_SYMBOL 2
163#define POSIX2_SYMBOL 4
164#else
165#define POSIX1_SYMBOL 0
166#define POSIX2_SYMBOL 0
167#endif
168
169#if ADD_MISSING_XOPEN
170/* Used to mark names defined in X/Open Portability Guide.  */
171#define XOPEN_SYMBOL 8
172/* Used to mark names defined in X/Open UNIX Extensions.  */
173#define XOPEN_EXTENDED_SYMBOL 16
174#else
175#define XOPEN_SYMBOL 0
176#define XOPEN_EXTENDED_SYMBOL 0
177#endif
178
179/* Used to indicate names that are not functions */
180#define MACRO_SYMBOL 512
181
182struct symbol_list {
183  symbol_flags flags;
184  namelist names;
185};
186
187#define SYMBOL_TABLE_SIZE 10
188struct symbol_list symbol_table[SYMBOL_TABLE_SIZE];
189int cur_symbol_table_size;
190
191static void add_symbols PARAMS ((symbol_flags, namelist));
192static struct fn_decl *lookup_std_proto PARAMS ((const char *, int));
193static void write_lbrac PARAMS ((void));
194static void recognized_macro PARAMS ((const char *));
195static void check_macro_names PARAMS ((cpp_reader *, namelist));
196static void read_scan_file PARAMS ((char *, int, char **));
197static void write_rbrac PARAMS ((void));
198static int inf_skip_spaces PARAMS ((int));
199static int inf_read_upto PARAMS ((sstring *, int));
200static int inf_scan_ident PARAMS ((sstring *, int));
201static int check_protection PARAMS ((int *, int *));
202static void cb_file_change PARAMS ((cpp_reader *, const struct line_map *));
203
204static void
205add_symbols (flags, names)
206     symbol_flags flags;
207     namelist names;
208{
209  symbol_table[cur_symbol_table_size].flags = flags;
210  symbol_table[cur_symbol_table_size].names = names;
211  cur_symbol_table_size++;
212  if (cur_symbol_table_size >= SYMBOL_TABLE_SIZE)
213    fatal ("too many calls to add_symbols");
214  symbol_table[cur_symbol_table_size].names = NULL; /* Termination.  */
215}
216
217struct std_include_entry {
218  const char *const name;
219  const symbol_flags flags;
220  const namelist names;
221};
222
223const char NONE[] = "";  /* The empty namelist.  */
224
225/* Special name to indicate a continuation line in std_include_table.  */
226const char CONTINUED[] = "";
227
228const struct std_include_entry *include_entry;
229
230const struct std_include_entry std_include_table [] = {
231  { "ctype.h", ANSI_SYMBOL,
232      "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\
233isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" },
234
235  { "dirent.h", POSIX1_SYMBOL, "closedir\0opendir\0readdir\0rewinddir\0"},
236
237  { "errno.h", ANSI_SYMBOL|MACRO_SYMBOL, "errno\0" },
238
239  /* ANSI_SYMBOL is wrong, but ...  */
240  { "curses.h", ANSI_SYMBOL, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\
241mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\
242scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\
243waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\
244wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" },
245
246  { "fcntl.h", POSIX1_SYMBOL, "creat\0fcntl\0open\0" },
247
248  /* Maybe also "getgrent fgetgrent setgrent endgrent" */
249  { "grp.h", POSIX1_SYMBOL, "getgrgid\0getgrnam\0" },
250
251/*{ "limit.h", ... provided by gcc }, */
252
253  { "locale.h", ANSI_SYMBOL, "localeconv\0setlocale\0" },
254
255  { "math.h", ANSI_SYMBOL,
256      "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\
257fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\
258tan\0tanh\0" },
259
260  { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "HUGE_VAL\0" },
261
262  { "pwd.h", POSIX1_SYMBOL, "getpwnam\0getpwuid\0" },
263
264  /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf.  */
265  { "setjmp.h", ANSI_SYMBOL, "longjmp\0setjmp\0" },
266
267  /* Left out signal() - its prototype is too complex for us!
268     Also left out "sigaction sigaddset sigdelset sigemptyset
269     sigfillset sigismember sigpending sigprocmask sigsuspend"
270     because these need sigset_t or struct sigaction.
271     Most systems that provide them will also declare them.  */
272  { "signal.h", ANSI_SYMBOL, "kill\0raise\0" },
273
274  { "stdio.h", ANSI_SYMBOL,
275      "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\
276fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\
277fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0perror\0\
278printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\
279setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\
280tmpnam\0ungetc\0" },
281  { CONTINUED, POSIX1_SYMBOL, "fdopen\0fileno\0" },
282  { CONTINUED, POSIX2_SYMBOL, "pclose\0popen\0" },  /* I think ...  */
283/* Should perhaps also handle NULL, EOF, ... ? */
284
285  /* "div ldiv", - ignored because these depend on div_t, ldiv_t
286     ignore these: "mblen mbstowcs mbstowc wcstombs wctomb"
287     Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions.
288     Should perhaps also add NULL */
289  { "stdlib.h", ANSI_SYMBOL,
290      "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\
291exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\
292srand\0strtod\0strtol\0strtoul\0system\0" },
293  { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "EXIT_FAILURE\0EXIT_SUCCESS\0" },
294
295  { "string.h", ANSI_SYMBOL, "memchr\0memcmp\0memcpy\0memmove\0memset\0\
296strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\
297strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\
298strtok\0strxfrm\0" },
299/* Should perhaps also add NULL and size_t */
300
301  { "strings.h", XOPEN_EXTENDED_SYMBOL,
302      "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" },
303
304  { "strops.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" },
305
306  /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines
307     ioctl in <strops.h>.  However, many systems have it is sys/ioctl.h,
308     and many systems do have <sys/ioctl.h> but not <strops.h>.  */
309  { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" },
310
311  { "sys/socket.h", XOPEN_EXTENDED_SYMBOL, "socket\0" },
312
313  { "sys/stat.h", POSIX1_SYMBOL,
314      "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" },
315  { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL,
316      "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\
317S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" },
318  { CONTINUED, XOPEN_EXTENDED_SYMBOL, "fchmod\0" },
319
320#if 0
321/* How do we handle fd_set? */
322  { "sys/time.h", XOPEN_EXTENDED_SYMBOL, "select\0" },
323  { "sys/select.h", XOPEN_EXTENDED_SYMBOL /* fake */, "select\0" },
324#endif
325
326  { "sys/times.h", POSIX1_SYMBOL, "times\0" },
327  /* "sys/types.h" add types (not in old g++-include) */
328
329  { "sys/utsname.h", POSIX1_SYMBOL, "uname\0" },
330
331  { "sys/wait.h", POSIX1_SYMBOL, "wait\0waitpid\0" },
332  { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL,
333      "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\
334WTERMSIG\0WNOHANG\0WNOTRACED\0" },
335
336  { "tar.h", POSIX1_SYMBOL, NONE },
337
338  { "termios.h", POSIX1_SYMBOL,
339      "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" },
340
341  { "time.h", ANSI_SYMBOL,
342      "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" },
343
344  { "unistd.h", POSIX1_SYMBOL,
345      "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\
346dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\
347getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\
348getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\
349setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\
350ttyname\0unlink\0write\0" },
351  { CONTINUED, POSIX2_SYMBOL, "getopt\0" },
352  { CONTINUED, XOPEN_EXTENDED_SYMBOL,
353      "lockf\0gethostid\0gethostname\0readlink\0symlink\0" },
354
355  { "utime.h", POSIX1_SYMBOL, "utime\0" },
356
357  { NULL, 0, NONE }
358};
359
360enum special_file special_file_handling = no_special;
361
362/* They are set if the corresponding macro has been seen.  */
363/* The following are only used when handling sys/stat.h */
364int seen_S_IFBLK = 0, seen_S_ISBLK  = 0;
365int seen_S_IFCHR = 0, seen_S_ISCHR  = 0;
366int seen_S_IFDIR = 0, seen_S_ISDIR  = 0;
367int seen_S_IFIFO = 0, seen_S_ISFIFO = 0;
368int seen_S_IFLNK = 0, seen_S_ISLNK  = 0;
369int seen_S_IFREG = 0, seen_S_ISREG  = 0;
370/* The following are only used when handling errno.h */
371int seen_errno = 0;
372/* The following are only used when handling stdlib.h */
373int seen_EXIT_FAILURE = 0, seen_EXIT_SUCCESS = 0;
374
375struct obstack scan_file_obstack;
376
377/* NOTE:  If you edit this, also edit gen-protos.c !! */
378
379static struct fn_decl *
380lookup_std_proto (name, name_length)
381     const char *name;
382     int name_length;
383{
384  int i = hashstr (name, name_length) % HASH_SIZE;
385  int i0 = i;
386  for (;;)
387    {
388      struct fn_decl *fn;
389      if (hash_tab[i] == 0)
390	return NULL;
391      fn = &std_protos[hash_tab[i]];
392      if ((int) strlen (fn->fname) == name_length
393	  && strncmp (fn->fname, name, name_length) == 0)
394	return fn;
395      i = (i+1) % HASH_SIZE;
396      if (i == i0)
397	abort ();
398    }
399}
400
401char *inc_filename;
402int inc_filename_length;
403const char *progname = "fix-header";
404FILE *outf;
405sstring line;
406
407int lbrac_line, rbrac_line;
408
409int required_unseen_count = 0;
410int required_other = 0;
411
412static void
413write_lbrac ()
414{
415
416#if ADD_MISSING_EXTERN_C
417  if (missing_extern_C_count + required_unseen_count > 0)
418    fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
419#endif
420
421  if (partial_count)
422    {
423      fprintf (outf, "#ifndef _PARAMS\n");
424      fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n");
425      fprintf (outf, "#define _PARAMS(ARGS) ARGS\n");
426      fprintf (outf, "#else\n");
427      fprintf (outf, "#define _PARAMS(ARGS) ()\n");
428      fprintf (outf, "#endif\n#endif /* _PARAMS */\n");
429    }
430}
431
432struct partial_proto
433{
434  struct partial_proto *next;
435  struct fn_decl *fn;
436  int line_seen;
437};
438
439struct partial_proto *partial_proto_list = NULL;
440
441struct partial_proto required_dummy_proto, seen_dummy_proto;
442#define REQUIRED(FN) ((FN)->partial == &required_dummy_proto)
443#define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto)
444#define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto)
445#define SEEN(FN) ((FN)->partial == &seen_dummy_proto)
446
447static void
448recognized_macro (fname)
449     const char *fname;
450{
451  /* The original include file defines fname as a macro.  */
452  struct fn_decl *fn = lookup_std_proto (fname, strlen (fname));
453
454  /* Since fname is a macro, don't require a prototype for it.  */
455  if (fn)
456    {
457      if (REQUIRED (fn))
458	required_unseen_count--;
459      SET_SEEN (fn);
460    }
461
462  switch (special_file_handling)
463    {
464    case errno_h:
465      if (strcmp (fname, "errno") == 0 && !seen_errno)
466	seen_errno = 1, required_other--;
467      break;
468    case stdlib_h:
469      if (strcmp (fname, "EXIT_FAILURE") == 0 && !seen_EXIT_FAILURE)
470	seen_EXIT_FAILURE = 1, required_other--;
471      if (strcmp (fname, "EXIT_SUCCESS") == 0 && !seen_EXIT_SUCCESS)
472	seen_EXIT_SUCCESS = 1, required_other--;
473      break;
474    case sys_stat_h:
475      if (fname[0] == 'S' && fname[1] == '_')
476	{
477	  if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++;
478	  else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++;
479	  else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++;
480	  else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++;
481	  else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++;
482	  else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++;
483	  else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++;
484	  else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++;
485	  else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++;
486	  else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++;
487	  else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++;
488	  else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++;
489	}
490      break;
491
492    default:
493      break;
494    }
495}
496
497void
498recognized_extern (name)
499     const cpp_token *name;
500{
501  switch (special_file_handling)
502    {
503    case errno_h:
504      if (cpp_ideq (name, "errno"))
505	seen_errno = 1, required_other--;
506      break;
507
508    default:
509      break;
510    }
511}
512
513/* Called by scan_decls if it saw a function definition for a function
514   named FNAME.  KIND is 'I' for an inline function; 'F' if a normal
515   function declaration preceded by 'extern "C"' (or nested inside
516   'extern "C"' braces); or 'f' for other function declarations.  */
517
518void
519recognized_function (fname, line, kind, have_arg_list)
520     const cpp_token *fname;
521     unsigned int line;
522     int kind; /* One of 'f' 'F' or 'I' */
523     int have_arg_list;
524{
525  struct partial_proto *partial;
526  int i;
527  struct fn_decl *fn;
528#if ADD_MISSING_EXTERN_C
529  if (kind == 'f')
530    missing_extern_C_count++;
531#endif
532
533  fn = lookup_std_proto ((const char *) NODE_NAME (fname->val.node),
534			 NODE_LEN (fname->val.node));
535
536  /* Remove the function from the list of required function.  */
537  if (fn)
538    {
539      if (REQUIRED (fn))
540	required_unseen_count--;
541      SET_SEEN (fn);
542    }
543
544  /* If we have a full prototype, we're done.  */
545  if (have_arg_list)
546    return;
547
548  if (kind == 'I')  /* don't edit inline function */
549    return;
550
551  /* If the partial prototype was included from some other file,
552     we don't need to patch it up (in this run).  */
553  i = strlen (cur_file);
554  if (i < inc_filename_length
555      || strcmp (inc_filename, cur_file + (i - inc_filename_length)) != 0)
556    return;
557
558  if (fn == NULL)
559    return;
560  if (fn->params[0] == '\0')
561    return;
562
563  /* We only have a partial function declaration,
564     so remember that we have to add a complete prototype.  */
565  partial_count++;
566  partial = (struct partial_proto *)
567    obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto));
568  partial->line_seen = line;
569  partial->fn = fn;
570  fn->partial = partial;
571  partial->next = partial_proto_list;
572  partial_proto_list = partial;
573  if (verbose)
574    {
575      fprintf (stderr, "(%s: %s non-prototype function declaration.)\n",
576	       inc_filename, fn->fname);
577    }
578}
579
580/* For any name in NAMES that is defined as a macro,
581   call recognized_macro on it.  */
582
583static void
584check_macro_names (pfile, names)
585     cpp_reader *pfile;
586     namelist names;
587{
588  size_t len;
589  while (*names)
590    {
591      len = strlen (names);
592      if (cpp_defined (pfile, (const unsigned char *)names, len))
593	recognized_macro (names);
594      names += len + 1;
595    }
596}
597
598static void
599cb_file_change (pfile, map)
600     cpp_reader *pfile ATTRIBUTE_UNUSED;
601     const struct line_map *map;
602{
603  /* Just keep track of current file name.  */
604  cur_file = map->to_file;
605}
606
607static void
608read_scan_file (in_fname, argc, argv)
609     char *in_fname;
610     int argc;
611     char **argv;
612{
613  cpp_reader *scan_in;
614  cpp_callbacks *cb;
615  cpp_options *options;
616  struct fn_decl *fn;
617  int i;
618  struct symbol_list *cur_symbols;
619
620  obstack_init (&scan_file_obstack);
621
622  scan_in = cpp_create_reader (CLK_GNUC89);
623  cb = cpp_get_callbacks (scan_in);
624  cb->file_change = cb_file_change;
625
626  /* We are going to be scanning a header file out of its proper context,
627     so ignore warnings and errors.  */
628  options = cpp_get_options (scan_in);
629  options->inhibit_warnings = 1;
630  options->inhibit_errors = 1;
631
632  i = cpp_handle_options (scan_in, argc, argv);
633  if (i < argc)
634    cpp_error (scan_in, DL_ERROR, "invalid option `%s'", argv[i]);
635  if (cpp_errors (scan_in))
636    exit (FATAL_EXIT_CODE);
637
638  if (! cpp_read_main_file (scan_in, in_fname, NULL))
639    exit (FATAL_EXIT_CODE);
640
641  cpp_finish_options (scan_in);
642
643  /* We are scanning a system header, so mark it as such.  */
644  cpp_make_system_header (scan_in, 1, 0);
645
646  scan_decls (scan_in, argc, argv);
647  for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++)
648    check_macro_names (scan_in, cur_symbols->names);
649
650  /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf.
651     If so, those functions are also required.  */
652  if (special_file_handling == stdio_h
653      && (fn = lookup_std_proto ("_filbuf", 7)) != NULL)
654    {
655      static const unsigned char getchar_call[] = "getchar();";
656      int seen_filbuf = 0;
657
658      /* Scan the macro expansion of "getchar();".  */
659      cpp_push_buffer (scan_in, getchar_call, sizeof(getchar_call) - 1,
660		       /* from_stage3 */ true, 1);
661      for (;;)
662	{
663	  const cpp_token *t = cpp_get_token (scan_in);
664
665	  if (t->type == CPP_EOF)
666	    break;
667	  else if (cpp_ideq (t, "_filbuf"))
668	    seen_filbuf++;
669	}
670
671      if (seen_filbuf)
672	{
673	  int need_filbuf = !SEEN (fn) && !REQUIRED (fn);
674	  struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7);
675	  int need_flsbuf
676	    = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn);
677
678	  /* Append "_filbuf" and/or "_flsbuf" to the required functions.  */
679	  if (need_filbuf + need_flsbuf)
680	    {
681	      const char *new_list;
682	      if (need_filbuf)
683		SET_REQUIRED (fn);
684	      if (need_flsbuf)
685		SET_REQUIRED (flsbuf_fn);
686	      if (need_flsbuf && need_filbuf)
687		new_list = "_filbuf\0_flsbuf\0";
688	      else if (need_flsbuf)
689		new_list = "_flsbuf\0";
690	      else /* if (need_flsbuf) */
691		new_list = "_filbuf\0";
692	      add_symbols (ANSI_SYMBOL, new_list);
693	      required_unseen_count += need_filbuf + need_flsbuf;
694	    }
695	}
696    }
697
698  if (required_unseen_count + partial_count + required_other
699#if ADD_MISSING_EXTERN_C
700      + missing_extern_C_count
701#endif
702      == 0)
703    {
704      if (verbose)
705	fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename);
706      exit (SUCCESS_EXIT_CODE);
707    }
708  if (!verbose)
709    fprintf (stderr, "%s: fixing %s\n", progname, inc_filename);
710  else
711    {
712      if (required_unseen_count)
713	fprintf (stderr, "%s: %d missing function declarations.\n",
714		 inc_filename, required_unseen_count);
715      if (partial_count)
716	fprintf (stderr, "%s: %d non-prototype function declarations.\n",
717		 inc_filename, partial_count);
718#if ADD_MISSING_EXTERN_C
719      if (missing_extern_C_count)
720	fprintf (stderr,
721		 "%s: %d declarations not protected by extern \"C\".\n",
722		 inc_filename, missing_extern_C_count);
723#endif
724    }
725}
726
727static void
728write_rbrac ()
729{
730  struct fn_decl *fn;
731  const char *cptr;
732  struct symbol_list *cur_symbols;
733
734  if (required_unseen_count)
735    {
736#ifdef NO_IMPLICIT_EXTERN_C
737      fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
738#endif
739    }
740
741  /* Now we print out prototypes for those functions that we haven't seen.  */
742  for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++)
743    {
744      int if_was_emitted = 0;
745      int name_len;
746      cptr = cur_symbols->names;
747      for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1)
748	{
749	  int macro_protect = 0;
750
751	  if (cur_symbols->flags & MACRO_SYMBOL)
752	    continue;
753
754	  fn = lookup_std_proto (cptr, name_len);
755	  if (fn == NULL || !REQUIRED (fn))
756	    continue;
757
758	  if (!if_was_emitted)
759	    {
760/*	      what about curses. ??? or _flsbuf/_filbuf ??? */
761	      if (cur_symbols->flags & ANSI_SYMBOL)
762		fprintf (outf,
763	 "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n");
764	      else if (cur_symbols->flags & (POSIX1_SYMBOL|POSIX2_SYMBOL))
765		fprintf (outf,
766       "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\
767    ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\
768    : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n");
769	      else if (cur_symbols->flags & XOPEN_SYMBOL)
770		{
771		fprintf (outf,
772       "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\
773   || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n");
774		}
775	      else if (cur_symbols->flags & XOPEN_EXTENDED_SYMBOL)
776		{
777		fprintf (outf,
778       "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\
779   || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n");
780		}
781	      else
782		{
783		  fatal ("internal error for function %s", fn->fname);
784		}
785	      if_was_emitted = 1;
786	    }
787
788	  /* In the case of memmove, protect in case the application
789	     defines it as a macro before including the header.  */
790	  if (!strcmp (fn->fname, "memmove")
791	      || !strcmp (fn->fname, "putc")
792	      || !strcmp (fn->fname, "getc")
793	      || !strcmp (fn->fname, "vprintf")
794	      || !strcmp (fn->fname, "vfprintf")
795	      || !strcmp (fn->fname, "vsprintf")
796	      || !strcmp (fn->fname, "rewinddir")
797	      || !strcmp (fn->fname, "abort"))
798	    macro_protect = 1;
799
800	  if (macro_protect)
801	    fprintf (outf, "#ifndef %s\n", fn->fname);
802	  fprintf (outf, "extern %s %s (%s);\n",
803		   fn->rtype, fn->fname, fn->params);
804	  if (macro_protect)
805	    fprintf (outf, "#endif\n");
806	}
807      if (if_was_emitted)
808	fprintf (outf,
809		 "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n");
810    }
811  if (required_unseen_count)
812    {
813#ifdef NO_IMPLICIT_EXTERN_C
814      fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
815#endif
816    }
817
818  switch (special_file_handling)
819    {
820    case errno_h:
821      if (!seen_errno)
822	fprintf (outf, "extern int errno;\n");
823      break;
824    case stdlib_h:
825      if (!seen_EXIT_FAILURE)
826	fprintf (outf, "#define EXIT_FAILURE 1\n");
827      if (!seen_EXIT_SUCCESS)
828	fprintf (outf, "#define EXIT_SUCCESS 0\n");
829      break;
830    case sys_stat_h:
831      if (!seen_S_ISBLK && seen_S_IFBLK)
832	fprintf (outf,
833		 "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n");
834      if (!seen_S_ISCHR && seen_S_IFCHR)
835	fprintf (outf,
836		 "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n");
837      if (!seen_S_ISDIR && seen_S_IFDIR)
838	fprintf (outf,
839		 "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n");
840      if (!seen_S_ISFIFO && seen_S_IFIFO)
841	fprintf (outf,
842		 "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n");
843      if (!seen_S_ISLNK && seen_S_IFLNK)
844	fprintf (outf,
845		 "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n");
846      if (!seen_S_ISREG && seen_S_IFREG)
847	fprintf (outf,
848		 "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n");
849      break;
850
851    default:
852      break;
853    }
854
855
856#if ADD_MISSING_EXTERN_C
857  if (missing_extern_C_count + required_unseen_count > 0)
858    fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
859#endif
860}
861
862/* Returns 1 iff the file is properly protected from multiple inclusion:
863   #ifndef PROTECT_NAME
864   #define PROTECT_NAME
865   #endif
866
867 */
868
869#define INF_GET() (inf_ptr < inf_limit ? *(unsigned char *) inf_ptr++ : EOF)
870#define INF_UNGET(c) ((c)!=EOF && inf_ptr--)
871
872static int
873inf_skip_spaces (c)
874     int c;
875{
876  for (;;)
877    {
878      if (c == ' ' || c == '\t')
879	c = INF_GET ();
880      else if (c == '/')
881	{
882	  c = INF_GET ();
883	  if (c != '*')
884	    {
885	      (void) INF_UNGET (c);
886	      return '/';
887	    }
888	  c = INF_GET ();
889	  for (;;)
890	    {
891	      if (c == EOF)
892		return EOF;
893	      else if (c != '*')
894		{
895		  if (c == '\n')
896		    source_lineno++, lineno++;
897		  c = INF_GET ();
898		}
899	      else if ((c = INF_GET ()) == '/')
900		return INF_GET ();
901	    }
902	}
903      else
904	break;
905    }
906  return c;
907}
908
909/* Read into STR from inf_buffer upto DELIM.  */
910
911static int
912inf_read_upto (str, delim)
913     sstring *str;
914     int delim;
915{
916  int ch;
917  for (;;)
918    {
919      ch = INF_GET ();
920      if (ch == EOF || ch == delim)
921	break;
922      SSTRING_PUT (str, ch);
923    }
924  MAKE_SSTRING_SPACE (str, 1);
925  *str->ptr = 0;
926  return ch;
927}
928
929static int
930inf_scan_ident (s, c)
931     sstring *s;
932     int c;
933{
934  s->ptr = s->base;
935  if (ISIDST (c))
936    {
937      for (;;)
938	{
939	  SSTRING_PUT (s, c);
940	  c = INF_GET ();
941	  if (c == EOF || !(ISIDNUM (c)))
942	    break;
943	}
944    }
945  MAKE_SSTRING_SPACE (s, 1);
946  *s->ptr = 0;
947  return c;
948}
949
950/* Returns 1 if the file is correctly protected against multiple
951   inclusion, setting *ifndef_line to the line number of the initial #ifndef
952   and setting *endif_line to the final #endif.
953   Otherwise return 0.  */
954
955static int
956check_protection (ifndef_line, endif_line)
957     int *ifndef_line, *endif_line;
958{
959  int c;
960  int if_nesting = 1; /* Level of nesting of #if's */
961  char *protect_name = NULL; /* Identifier following initial #ifndef */
962  int define_seen = 0;
963
964  /* Skip initial white space (including comments).  */
965  for (;; lineno++)
966    {
967      c = inf_skip_spaces (' ');
968      if (c == EOF)
969	return 0;
970      if (c != '\n')
971	break;
972    }
973  if (c != '#')
974    return 0;
975  c = inf_scan_ident (&buf, inf_skip_spaces (' '));
976  if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0)
977    return 0;
978
979  /* So far so good: We've seen an initial #ifndef.  */
980  *ifndef_line = lineno;
981  c = inf_scan_ident (&buf, inf_skip_spaces (c));
982  if (SSTRING_LENGTH (&buf) == 0 || c == EOF)
983    return 0;
984  protect_name = xstrdup (buf.base);
985
986  (void) INF_UNGET (c);
987  c = inf_read_upto (&buf, '\n');
988  if (c == EOF)
989    return 0;
990  lineno++;
991
992  for (;;)
993    {
994      c = inf_skip_spaces (' ');
995      if (c == EOF)
996	return 0;
997      if (c == '\n')
998	{
999	  lineno++;
1000	  continue;
1001	}
1002      if (c != '#')
1003	goto skip_to_eol;
1004      c = inf_scan_ident (&buf, inf_skip_spaces (' '));
1005      if (SSTRING_LENGTH (&buf) == 0)
1006	;
1007      else if (!strcmp (buf.base, "ifndef")
1008	  || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if"))
1009	{
1010	  if_nesting++;
1011	}
1012      else if (!strcmp (buf.base, "endif"))
1013	{
1014	  if_nesting--;
1015	  if (if_nesting == 0)
1016	    break;
1017	}
1018      else if (!strcmp (buf.base, "else"))
1019	{
1020	  if (if_nesting == 1)
1021	    return 0;
1022	}
1023      else if (!strcmp (buf.base, "define"))
1024	{
1025	  c = inf_skip_spaces (c);
1026	  c = inf_scan_ident (&buf, c);
1027	  if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0)
1028	    define_seen = 1;
1029	}
1030    skip_to_eol:
1031      for (;;)
1032	{
1033	  if (c == '\n' || c == EOF)
1034	    break;
1035	  c = INF_GET ();
1036	}
1037      if (c == EOF)
1038	return 0;
1039      lineno++;
1040    }
1041
1042  if (!define_seen)
1043     return 0;
1044  *endif_line = lineno;
1045  /* Skip final white space (including comments).  */
1046  for (;;)
1047    {
1048      c = inf_skip_spaces (' ');
1049      if (c == EOF)
1050	break;
1051      if (c != '\n')
1052	return 0;
1053    }
1054
1055  return 1;
1056}
1057
1058extern int main			PARAMS ((int, char **));
1059
1060int
1061main (argc, argv)
1062     int argc;
1063     char **argv;
1064{
1065  int inf_fd;
1066  struct stat sbuf;
1067  int c;
1068#ifdef FIXPROTO_IGNORE_LIST
1069  int i;
1070#endif
1071  const char *cptr;
1072  int ifndef_line;
1073  int endif_line;
1074  long to_read;
1075  long int inf_size;
1076  struct symbol_list *cur_symbols;
1077
1078  if (argv[0] && argv[0][0])
1079    {
1080      char *p;
1081
1082      progname = 0;
1083      for (p = argv[0]; *p; p++)
1084	if (*p == '/')
1085	  progname = p;
1086      progname = progname ? progname+1 : argv[0];
1087    }
1088
1089  if (argc < 4)
1090    {
1091      fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n",
1092	       progname);
1093      exit (FATAL_EXIT_CODE);
1094    }
1095
1096  inc_filename = argv[1];
1097  inc_filename_length = strlen (inc_filename);
1098
1099#ifdef FIXPROTO_IGNORE_LIST
1100  for (i = 0; files_to_ignore[i] != NULL; i++)
1101    {
1102      const char *const ignore_name = files_to_ignore[i];
1103      int ignore_len = strlen (ignore_name);
1104      if (strncmp (inc_filename, ignore_name, ignore_len) == 0)
1105	{
1106	  if (ignore_name[ignore_len-1] == '/'
1107	      || inc_filename[ignore_len] == '\0')
1108	    {
1109	      if (verbose)
1110		fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename);
1111	      exit (SUCCESS_EXIT_CODE);
1112	    }
1113	}
1114
1115    }
1116#endif
1117
1118  if (strcmp (inc_filename, "sys/stat.h") == 0)
1119    special_file_handling = sys_stat_h;
1120  else if (strcmp (inc_filename, "errno.h") == 0)
1121    special_file_handling = errno_h, required_other++;
1122  else if (strcmp (inc_filename, "stdlib.h") == 0)
1123    special_file_handling = stdlib_h, required_other+=2;
1124  else if (strcmp (inc_filename, "stdio.h") == 0)
1125    special_file_handling = stdio_h;
1126  include_entry = std_include_table;
1127  while (include_entry->name != NULL
1128	 && ((strcmp (include_entry->name, CONTINUED) == 0)
1129	     || strcmp (inc_filename, include_entry->name) != 0))
1130    include_entry++;
1131
1132  if (include_entry->name != NULL)
1133    {
1134      const struct std_include_entry *entry;
1135      cur_symbol_table_size = 0;
1136      for (entry = include_entry; ;)
1137	{
1138	  if (entry->flags)
1139	    add_symbols (entry->flags, entry->names);
1140	  entry++;
1141	  if (!entry->name || strcmp (entry->name, CONTINUED) != 0)
1142	    break;
1143	}
1144    }
1145  else
1146    symbol_table[0].names = NULL;
1147
1148  /* Count and mark the prototypes required for this include file.  */
1149  for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++)
1150    {
1151      int name_len;
1152      if (cur_symbols->flags & MACRO_SYMBOL)
1153	continue;
1154      cptr = cur_symbols->names;
1155      for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1)
1156	{
1157	  struct fn_decl *fn = lookup_std_proto (cptr, name_len);
1158	  required_unseen_count++;
1159	  if (fn == NULL)
1160	    fprintf (stderr, "Internal error:  No prototype for %s\n", cptr);
1161	  else
1162	    SET_REQUIRED (fn);
1163	}
1164    }
1165
1166  read_scan_file (argv[2], argc - 4, argv + 4);
1167
1168  inf_fd = open (argv[2], O_RDONLY, 0666);
1169  if (inf_fd < 0)
1170    {
1171      fprintf (stderr, "%s: Cannot open '%s' for reading -",
1172	       progname, argv[2]);
1173      perror (NULL);
1174      exit (FATAL_EXIT_CODE);
1175    }
1176  if (fstat (inf_fd, &sbuf) < 0)
1177    {
1178      fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]);
1179      perror (NULL);
1180      exit (FATAL_EXIT_CODE);
1181    }
1182  inf_size = sbuf.st_size;
1183  inf_buffer = (char *) xmalloc (inf_size + 2);
1184  inf_ptr = inf_buffer;
1185
1186  to_read = inf_size;
1187  while (to_read > 0)
1188    {
1189      long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read);
1190      if (i < 0)
1191	{
1192	  fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]);
1193	  perror (NULL);
1194	  exit (FATAL_EXIT_CODE);
1195	}
1196      if (i == 0)
1197	{
1198	  inf_size -= to_read;
1199	  break;
1200	}
1201      to_read -= i;
1202    }
1203
1204  close (inf_fd);
1205
1206  /* Inf_size may have changed if read was short (as on VMS) */
1207  inf_buffer[inf_size] = '\n';
1208  inf_buffer[inf_size + 1] = '\0';
1209  inf_limit = inf_buffer + inf_size;
1210
1211  /* If file doesn't end with '\n', add one.  */
1212  if (inf_limit > inf_buffer && inf_limit[-1] != '\n')
1213    inf_limit++;
1214
1215  unlink (argv[3]);
1216  outf = fopen (argv[3], "w");
1217  if (outf == NULL)
1218    {
1219      fprintf (stderr, "%s: Cannot open '%s' for writing -",
1220	       progname, argv[3]);
1221      perror (NULL);
1222      exit (FATAL_EXIT_CODE);
1223    }
1224
1225  lineno = 1;
1226
1227  if (check_protection (&ifndef_line, &endif_line))
1228    {
1229      lbrac_line = ifndef_line+1;
1230      rbrac_line = endif_line;
1231    }
1232  else
1233    {
1234      lbrac_line = 1;
1235      rbrac_line = -1;
1236    }
1237
1238  /* Reset input file.  */
1239  inf_ptr = inf_buffer;
1240  lineno = 1;
1241
1242  for (;;)
1243    {
1244      if (lineno == lbrac_line)
1245	write_lbrac ();
1246      if (lineno == rbrac_line)
1247	write_rbrac ();
1248      for (;;)
1249	{
1250	  struct fn_decl *fn;
1251	  c = INF_GET ();
1252	  if (c == EOF)
1253	    break;
1254	  if (ISIDST (c))
1255	    {
1256	      c = inf_scan_ident (&buf, c);
1257	      (void) INF_UNGET (c);
1258	      fputs (buf.base, outf);
1259	      fn = lookup_std_proto (buf.base, strlen (buf.base));
1260	      /* We only want to edit the declaration matching the one
1261		 seen by scan-decls, as there can be multiple
1262		 declarations, selected by #ifdef __STDC__ or whatever.  */
1263	      if (fn && fn->partial && fn->partial->line_seen == lineno)
1264		{
1265		  c = inf_skip_spaces (' ');
1266		  if (c == EOF)
1267		    break;
1268		  if (c == '(')
1269		    {
1270		      c = inf_skip_spaces (' ');
1271		      if (c == ')')
1272			{
1273			  fprintf (outf, " _PARAMS((%s))", fn->params);
1274			}
1275		      else
1276			{
1277			  putc ('(', outf);
1278			  (void) INF_UNGET (c);
1279			}
1280		    }
1281		  else
1282		    fprintf (outf, " %c", c);
1283		}
1284	    }
1285	  else
1286	    {
1287	      putc (c, outf);
1288	      if (c == '\n')
1289		break;
1290	    }
1291	}
1292      if (c == EOF)
1293	break;
1294      lineno++;
1295    }
1296  if (rbrac_line < 0)
1297    write_rbrac ();
1298
1299  fclose (outf);
1300
1301  return 0;
1302}
1303
1304
1305static void
1306v_fatal (str, ap)
1307  const char * str;
1308  va_list ap;
1309{
1310  fprintf (stderr, "%s: %s: ", progname, inc_filename);
1311  vfprintf (stderr, str, ap);
1312  fprintf (stderr, "\n");
1313
1314  exit (FATAL_EXIT_CODE);
1315}
1316
1317static void
1318fatal VPARAMS ((const char *str, ...))
1319{
1320  VA_OPEN (ap, str);
1321  VA_FIXEDARG (ap, const char *, str);
1322
1323  v_fatal (str, ap);
1324  VA_CLOSE (ap);
1325}
1326