gcc/fix-header.c

   1 /* fix-header.c - Make C header file suitable for C++.
   2    Copyright (C) 1993, 1994, 1995 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  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++:
  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 required 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 [OPTIONS]
  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    * OPTIONS are such as you would pass to cpp.
  70
  71    Written by Per Bothner <bothner@cygnus.com>, July 1993. */
  72
  73 #include <stdio.h>
  74 #include <ctype.h>
  75 #include "hconfig.h"
  76 #include "obstack.h"
  77 #include "scan.h"
  78 #include "cpplib.h"
  79 #ifndef O_RDONLY
  80 #define O_RDONLY 0
  81 #endif
  82
  83 #if !__STDC__
  84 #define const /* nothing */
  85 #endif
  86
  87 sstring buf;
  88
  89 int verbose = 0;
  90 int partial_count = 0;
  91 int warnings = 0;
  92
  93 /* We no longer need to add extern "C", because cpp implicitly
  94    forces the standard include files to be treated as C.  */
  95 /*#define ADD_MISSING_EXTERN_C 1 */
  96
  97 #if ADD_MISSING_EXTERN_C
  98 int missing_extern_C_count = 0;
  99 #endif
 100
 101 #include "xsys-protos.h"
 102
 103 #ifdef FIXPROTO_IGNORE_LIST
 104 /* This is a currently unused feature. */
 105
 106 /* List of files and directories to ignore.
 107    A directory name (ending in '/') means ignore anything in that
 108    directory.  (It might be more efficient to do directory pruning
 109    earlier in fixproto, but this is simpler and easier to customize.) */
 110
 111 static char *files_to_ignore[] = {
 112   "X11/",
 113   FIXPROTO_IGNORE_LIST
 114   0
 115 };
 116 #endif
 117
 118 char *inf_buffer;
 119 char *inf_limit;
 120 char *inf_ptr;
 121
 122 /* Certain standard files get extra treatment */
 123
 124 enum special_file
 125 {
 126   no_special,
 127   errno_h,
 128   stdio_h,
 129   stdlib_h,
 130   sys_stat_h
 131 };
 132
 133 /* A NAMELIST is a sequence of names, separated by '\0', and terminated
 134    by an empty name (i.e. by "\0\0"). */
 135
 136 typedef const char* namelist;
 137
 138 /* The following macros provide the bits for symbol_flags. */
 139 typedef int symbol_flags;
 140
 141 /* Used to mark names defined in the ANSI/ISO C standard. */
 142 #define ANSI_SYMBOL 1
 143
 144 /* Used to mark names defined in the Posix.1 or Posix.2 standard. */
 145 #define POSIX1_SYMBOL 2
 146 #define POSIX2_SYMBOL 4
 147
 148 /* Used to mark names defined in X/Open Portability Guide. */
 149 #define XOPEN_SYMBOL 8
 150 /* Used to mark names defined in X/Open UNIX Extensions. */
 151 #define XOPEN_EXTENDED_SYMBOL 16
 152
 153 /* Used to indicate names that are not functions */
 154 #define MACRO_SYMBOL 512
 155
 156 struct symbol_list {
 157   symbol_flags flags;
 158   namelist names;
 159 };
 160
 161 #define SYMBOL_TABLE_SIZE 10
 162 struct symbol_list symbol_table[SYMBOL_TABLE_SIZE];
 163 int cur_symbol_table_size;
 164
 165 void
 166 add_symbols (flags, names)
 167      symbol_flags flags;
 168      namelist names;
 169 {
 170   symbol_table[cur_symbol_table_size].flags = flags;
 171   symbol_table[cur_symbol_table_size].names = names;
 172   cur_symbol_table_size++;
 173   if (cur_symbol_table_size >= SYMBOL_TABLE_SIZE)
 174     fatal ("too many calls to add_symbols");
 175   symbol_table[cur_symbol_table_size].names = NULL; /* Termination. */
 176 }
 177
 178 struct std_include_entry {
 179   const char *name;
 180   symbol_flags flags;
 181   namelist names;
 182 };
 183
 184 const char NONE[] = "";  /* The empty namelist. */
 185
 186 /* Special name to indicate a continuation line in std_include_table. */
 187 const char CONTINUED[] = "";
 188
 189 struct std_include_entry *include_entry;
 190
 191 struct std_include_entry std_include_table [] = {
 192   { "ctype.h", ANSI_SYMBOL,
 193       "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\
 194 isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" },
 195
 196   { "dirent.h", POSIX1_SYMBOL, "closedir\0opendir\0readdir\0rewinddir\0"},
 197
 198   { "errno.h", ANSI_SYMBOL|MACRO_SYMBOL, "errno\0" },
 199
 200   /* ANSI_SYMBOL is wrong, but ... */
 201   { "curses.h", ANSI_SYMBOL, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\
 202 mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\
 203 scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\
 204 waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\
 205 wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" },
 206
 207   { "fcntl.h", POSIX1_SYMBOL, "creat\0fcntl\0open\0" },
 208
 209   /* Maybe also "getgrent fgetgrent setgrent endgrent" */
 210   { "grp.h", POSIX1_SYMBOL, "getgrgid\0getgrnam\0" },
 211
 212 /*{ "limit.h", ... provided by gcc }, */
 213
 214   { "locale.h", ANSI_SYMBOL, "localeconv\0setlocale\0" },
 215
 216   { "math.h", ANSI_SYMBOL,
 217       "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\
 218 fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\
 219 tan\0tanh\0" },
 220
 221   { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "HUGE_VAL\0" },
 222
 223   { "pwd.h", POSIX1_SYMBOL, "getpwnam\0getpwuid\0" },
 224
 225   /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */
 226   { "setjmp.h", ANSI_SYMBOL, "longjmp\0setjmp\0" },
 227
 228   /* Left out signal() - its prototype is too complex for us!
 229      Also left out "sigaction sigaddset sigdelset sigemptyset
 230      sigfillset sigismember sigpending sigprocmask sigsuspend"
 231      because these need sigset_t or struct sigaction.
 232      Most systems that provide them will also declare them. */
 233   { "signal.h", ANSI_SYMBOL, "kill\0raise\0" },
 234
 235   { "stdio.h", ANSI_SYMBOL,
 236       "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\
 237 fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\
 238 fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\00perror\0popen\0\
 239 printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\
 240 setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\
 241 tmpnam\0ungetc\0" },
 242   { CONTINUED, POSIX1_SYMBOL, "fdopen\0fileno\0" },
 243   { CONTINUED, POSIX2_SYMBOL, "pclose\0popen\0" },  /* I think ... */
 244 /* Should perhaps also handle NULL, EOF, ... ? */
 245
 246   /* "div ldiv", - ignored because these depend on div_t, ldiv_t
 247      ignore these: "mblen mbstowcs mbstowc wcstombs wctomb"
 248      Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions.
 249      Should perhaps also add NULL */
 250   { "stdlib.h", ANSI_SYMBOL,
 251       "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\
 252 exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\
 253 srand\0strtod\0strtol\0strtoul\0system\0" },
 254   { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "EXIT_FAILURE\0EXIT_SUCCESS\0" },
 255
 256   { "string.h", ANSI_SYMBOL, "memchr\0memcmp\0memcpy\0memmove\0memset\0\
 257 strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\
 258 strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\
 259 strtok\0strxfrm\0" },
 260 /* Should perhaps also add NULL and size_t */
 261
 262   { "strings.h", XOPEN_EXTENDED_SYMBOL,
 263       "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" },
 264
 265   { "strops.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" },
 266
 267   /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines
 268      ioctl in <strops.h>.  However, many systems have it is sys/ioctl.h,
 269      and many systems do have <sys/ioctl.h> but not <strops.h>. */
 270   { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" },
 271
 272   { "sys/socket.h", XOPEN_EXTENDED_SYMBOL, "socket\0" },
 273
 274   { "sys/stat.h", POSIX1_SYMBOL,
 275       "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" },
 276   { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL,
 277       "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\
 278 S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" },
 279   { CONTINUED, XOPEN_EXTENDED_SYMBOL, "fchmod\0" },
 280
 281 #if 0
 282 /* How do we handle fd_set? */
 283   { "sys/time.h", XOPEN_EXTENDED_SYMBOL, "select\0" },
 284   { "sys/select.h", XOPEN_EXTENDED_SYMBOL /* fake */, "select\0" },
 285 #endif
 286
 287   { "sys/times.h", POSIX1_SYMBOL, "times\0" },
 288   /* "sys/types.h" add types (not in old g++-include) */
 289
 290   { "sys/utsname.h", POSIX1_SYMBOL, "uname\0" },
 291
 292   { "sys/wait.h", POSIX1_SYMBOL, "wait\0waitpid\0" },
 293   { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL,
 294       "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\
 295 WTERMSIG\0WNOHANG\0WNOTRACED\0" },
 296
 297   { "tar.h", POSIX1_SYMBOL, NONE },
 298
 299   { "termios.h", POSIX1_SYMBOL,
 300       "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" },
 301
 302   { "time.h", ANSI_SYMBOL,
 303       "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" },
 304
 305   { "unistd.h", POSIX1_SYMBOL,
 306       "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\
 307 dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\
 308 getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\
 309 getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\
 310 setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\
 311 ttyname\0unlink\0write\0" },
 312   { CONTINUED, POSIX2_SYMBOL, "getopt\0" },
 313   { CONTINUED, XOPEN_EXTENDED_SYMBOL,
 314       "lockf\0gethostid\0gethostname\0readlink\0" },
 315
 316   { "utime.h", POSIX1_SYMBOL, "utime\0" },
 317
 318   { NULL, 0, NONE }
 319 };
 320
 321 enum special_file special_file_handling = no_special;
 322
 323 /* They are set if the corresponding macro has been seen. */
 324 /* The following are only used when handling sys/stat.h */
 325 int seen_S_IFBLK = 0, seen_S_ISBLK  = 0;
 326 int seen_S_IFCHR = 0, seen_S_ISCHR  = 0;
 327 int seen_S_IFDIR = 0, seen_S_ISDIR  = 0;
 328 int seen_S_IFIFO = 0, seen_S_ISFIFO = 0;
 329 int seen_S_IFLNK = 0, seen_S_ISLNK  = 0;
 330 int seen_S_IFREG = 0, seen_S_ISREG  = 0;
 331 /* The following are only used when handling errno.h */
 332 int seen_errno = 0;
 333 /* The following are only used when handling stdlib.h */
 334 int seen_EXIT_FAILURE = 0, seen_EXIT_SUCCESS = 0;
 335 \f
 336 /* Wrapper around free, to avoid prototype clashes. */
 337
 338 void
 339 xfree (ptr)
 340      char *ptr;
 341 {
 342   free (ptr);
 343 }
 344
 345 /* Avoid error if config defines abort as fancy_abort.
 346    It's not worth "really" implementing this because ordinary
 347    compiler users never run fix-header.  */
 348
 349 void
 350 fancy_abort ()
 351 {
 352   abort ();
 353 }
 354 \f
 355 #define obstack_chunk_alloc xmalloc
 356 #define obstack_chunk_free xfree
 357 struct obstack scan_file_obstack;
 358
 359 /* NOTE:  If you edit this, also edit gen-protos.c !! */
 360 struct fn_decl *
 361 lookup_std_proto (name, name_length)
 362      const char *name;
 363      int name_length;
 364 {
 365   int i = hashf (name, name_length, HASH_SIZE);
 366   int i0 = i;
 367   for (;;)
 368     {
 369       struct fn_decl *fn;
 370       if (hash_tab[i] == 0)
 371         return NULL;
 372       fn = &std_protos[hash_tab[i]];
 373       if (strlen (fn->fname) == name_length
 374           && strncmp (fn->fname, name, name_length) == 0)
 375         return fn;
 376       i = (i+1) % HASH_SIZE;
 377       if (i == i0)
 378         abort ();
 379     }
 380 }
 381
 382 char *inc_filename;
 383 int inc_filename_length;
 384 char *progname = "fix-header";
 385 FILE *outf;
 386 sstring line;
 387
 388 int lbrac_line, rbrac_line;
 389
 390 int required_unseen_count = 0;
 391 int required_other = 0;
 392
 393 void
 394 write_lbrac ()
 395 {
 396
 397 #if ADD_MISSING_EXTERN_C
 398   if (missing_extern_C_count + required_unseen_count > 0)
 399     fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
 400 #endif
 401
 402   if (partial_count)
 403     {
 404       fprintf (outf, "#ifndef _PARAMS\n");
 405       fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n");
 406       fprintf (outf, "#define _PARAMS(ARGS) ARGS\n");
 407       fprintf (outf, "#else\n");
 408       fprintf (outf, "#define _PARAMS(ARGS) ()\n");
 409       fprintf (outf, "#endif\n#endif /* _PARAMS */\n");
 410     }
 411 }
 412
 413 struct partial_proto
 414 {
 415   struct partial_proto *next;
 416   char *fname;  /* name of function */
 417   char *rtype;  /* return type */
 418   struct fn_decl *fn;
 419   int line_seen;
 420 };
 421
 422 struct partial_proto *partial_proto_list = NULL;
 423
 424 struct partial_proto required_dummy_proto, seen_dummy_proto;
 425 #define REQUIRED(FN) ((FN)->partial == &required_dummy_proto)
 426 #define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto)
 427 #define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto)
 428 #define SEEN(FN) ((FN)->partial == &seen_dummy_proto)
 429
 430 void
 431 recognized_macro (fname)
 432      char *fname;
 433 {
 434   /* The original include file defines fname as a macro. */
 435   struct fn_decl *fn = lookup_std_proto (fname, strlen (fname));
 436
 437   /* Since fname is a macro, don't require a prototype for it. */
 438   if (fn)
 439     {
 440       if (REQUIRED (fn))
 441         required_unseen_count--;
 442       SET_SEEN (fn);
 443     }
 444
 445   switch (special_file_handling)
 446     {
 447     case errno_h:
 448       if (strcmp (fname, "errno") == 0 && !seen_errno)
 449         seen_errno = 1, required_other--;
 450       break;
 451     case stdlib_h:
 452       if (strcmp (fname, "EXIT_FAILURE") == 0 && !seen_EXIT_FAILURE)
 453         seen_EXIT_FAILURE = 1, required_other--;
 454       if (strcmp (fname, "EXIT_SUCCESS") == 0 && !seen_EXIT_SUCCESS)
 455         seen_EXIT_SUCCESS = 1, required_other--;
 456       break;
 457     case sys_stat_h:
 458       if (fname[0] == 'S' && fname[1] == '_')
 459         {
 460           if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++;
 461           else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++;
 462           else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++;
 463           else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++;
 464           else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++;
 465           else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++;
 466           else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++;
 467           else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++;
 468           else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++;
 469           else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++;
 470           else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++;
 471           else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++;
 472         }
 473     }
 474 }
 475
 476 void
 477 recognized_extern (name, name_length, type, type_length)
 478      char *name;
 479      char *type;
 480      int name_length, type_length;
 481 {
 482   switch (special_file_handling)
 483     {
 484     case errno_h:
 485       if (strcmp (name, "errno") == 0 && !seen_errno)
 486         seen_errno = 1, required_other--;
 487       break;
 488     }
 489 }
 490
 491 /* Called by scan_decls if it saw a function definition for a function
 492    named FNAME, with return type RTYPE, and argument list ARGS,
 493    in source file FILE_SEEN on line LINE_SEEN.
 494    KIND is 'I' for an inline function;
 495    'F' if a normal function declaration preceded by 'extern "C"'
 496    (or nested inside 'extern "C"' braces); or
 497    'f' for other function declarations. */
 498
 499 void
 500 recognized_function (fname, fname_length,
 501                      kind, rtype, rtype_length,
 502                      have_arg_list, file_seen, line_seen)
 503      char *fname;
 504      int fname_length;
 505      int kind; /* One of 'f' 'F' or 'I' */
 506      char *rtype;
 507      int rtype_length;
 508      int have_arg_list;
 509      char *file_seen;
 510      int line_seen;
 511 {
 512   struct partial_proto *partial;
 513   int i;
 514   struct fn_decl *fn;
 515 #if ADD_MISSING_EXTERN_C
 516   if (kind == 'f')
 517     missing_extern_C_count++;
 518 #endif
 519
 520   fn = lookup_std_proto (fname, fname_length);
 521
 522   /* Remove the function from the list of required function. */
 523   if (fn)
 524     {
 525       if (REQUIRED (fn))
 526         required_unseen_count--;
 527       SET_SEEN (fn);
 528     }
 529
 530   /* If we have a full prototype, we're done. */
 531   if (have_arg_list)
 532     return;
 533
 534   if (kind == 'I')  /* don't edit inline function */
 535     return;
 536
 537   /* If the partial prototype was included from some other file,
 538      we don't need to patch it up (in this run). */
 539   i = strlen (file_seen);
 540   if (i < inc_filename_length
 541       || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0)
 542     return;
 543
 544   if (fn == NULL)
 545     return;
 546   if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0)
 547     return;
 548
 549   /* We only have a partial function declaration,
 550      so remember that we have to add a complete prototype. */
 551   partial_count++;
 552   partial = (struct partial_proto*)
 553     obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto));
 554   partial->fname = obstack_alloc (&scan_file_obstack, fname_length + 1);
 555   bcopy (fname, partial->fname, fname_length);
 556   partial->fname[fname_length] = 0;
 557   partial->rtype = obstack_alloc (&scan_file_obstack, rtype_length + 1);
 558   sprintf (partial->rtype, "%.*s", rtype_length, rtype);
 559   partial->line_seen = line_seen;
 560   partial->fn = fn;
 561   fn->partial = partial;
 562   partial->next = partial_proto_list;
 563   partial_proto_list = partial;
 564   if (verbose)
 565     {
 566       fprintf (stderr, "(%s: %s non-prototype function declaration.)\n",
 567                inc_filename, partial->fname);
 568     }
 569 }
 570
 571 /* For any name in NAMES that is defined as a macro,
 572    call recognized_macro on it. */
 573
 574 void
 575 check_macro_names (pfile, names)
 576      struct parse_file *pfile;
 577      namelist names;
 578 {
 579   while (*names)
 580     {
 581       if (cpp_lookup (pfile, names, -1, -1))
 582         recognized_macro (names);
 583       names += strlen (names) + 1;
 584     }
 585 }
 586
 587 void
 588 read_scan_file (in_fname, argc, argv)
 589      char *in_fname;
 590      int argc;
 591      char **argv;
 592 {
 593   cpp_reader scan_in;
 594   cpp_options scan_options;
 595   struct fn_decl *fn;
 596   int i;
 597   register struct symbol_list *cur_symbols;
 598
 599   obstack_init (&scan_file_obstack);
 600
 601   init_parse_file (&scan_in);
 602   scan_in.data = &scan_options;
 603   init_parse_options (&scan_options);
 604   i = cpp_handle_options (&scan_in, argc, argv);
 605   if (i < argc)
 606     fatal ("Invalid option `%s'", argv[i]);
 607   push_parse_file (&scan_in, in_fname);
 608   CPP_OPTIONS (&scan_in)->no_line_commands = 1;
 609
 610   scan_decls (&scan_in, argc, argv);
 611   for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++)
 612     check_macro_names (&scan_in, cur_symbols->names);
 613
 614   if (verbose && (scan_in.errors + warnings) > 0)
 615     fprintf (stderr, "(%s: %d errors and %d warnings from cpp)\n",
 616              inc_filename, scan_in.errors, warnings);
 617   if (scan_in.errors)
 618     exit (0);
 619
 620   /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf.
 621      If so, those functions are also required. */
 622   if (special_file_handling == stdio_h
 623       && (fn = lookup_std_proto ("_filbuf", 7)) != NULL)
 624     {
 625       static char getchar_call[] = "getchar();";
 626       cpp_buffer *buf =
 627         cpp_push_buffer (&scan_in, getchar_call, sizeof(getchar_call) - 1);
 628       int old_written = CPP_WRITTEN (&scan_in);
 629       int seen_filbuf = 0;
 630
 631       /* Scan the macro expansion of "getchar();". */
 632       for (;;)
 633         {
 634           enum cpp_token token = cpp_get_token (&scan_in);
 635           int length = CPP_WRITTEN (&scan_in) - old_written;
 636           CPP_SET_WRITTEN (&scan_in, old_written);
 637           if (token == CPP_EOF) /* Should not happen ... */
 638             break;
 639           if (token == CPP_POP && CPP_BUFFER (&scan_in) == buf)
 640             {
 641               cpp_pop_buffer (&scan_in);
 642               break;
 643             }
 644           if (token == CPP_NAME && length == 7
 645               && strcmp ("_filbuf", scan_in.token_buffer + old_written) == 0)
 646             seen_filbuf++;
 647         }
 648       if (seen_filbuf)
 649         {
 650           int need_filbuf = !SEEN (fn) && !REQUIRED (fn);
 651           struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7);
 652           int need_flsbuf
 653             = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn);
 654
 655           /* Append "_filbuf" and/or "_flsbuf" to the required functions. */
 656           if (need_filbuf + need_flsbuf)
 657             {
 658               char *new_list;
 659               if (need_filbuf)
 660                 SET_REQUIRED (fn);
 661               if (need_flsbuf)
 662                 SET_REQUIRED (flsbuf_fn);
 663               if (need_flsbuf + need_filbuf == 2)
 664                 new_list = "_filbuf\0_flsbuf\0";
 665               else if (need_flsbuf)
 666                 new_list = "_flsbuf\0";
 667               else /* if (need_flsbuf) */
 668                 new_list = "_filbuf\0";
 669               add_symbols (ANSI_SYMBOL, new_list);
 670               required_unseen_count += need_filbuf + need_flsbuf;
 671             }
 672         }
 673     }
 674
 675   if (required_unseen_count + partial_count + required_other
 676 #if ADD_MISSING_EXTERN_C
 677       + missing_extern_C_count
 678 #endif
 679       == 0)
 680     {
 681       if (verbose)
 682         fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename);
 683       exit (0);
 684     }
 685   if (!verbose)
 686     fprintf (stderr, "%s: fixing %s\n", progname, inc_filename);
 687   else
 688     {
 689       if (required_unseen_count)
 690         fprintf (stderr, "%s: %d missing function declarations.\n",
 691                  inc_filename, required_unseen_count);
 692       if (partial_count)
 693         fprintf (stderr, "%s: %d non-prototype function declarations.\n",
 694                  inc_filename, partial_count);
 695 #if ADD_MISSING_EXTERN_C
 696       if (missing_extern_C_count)
 697         fprintf (stderr,
 698                  "%s: %d declarations not protected by extern \"C\".\n",
 699                  inc_filename, missing_extern_C_count);
 700 #endif
 701     }
 702 }
 703
 704 void
 705 write_rbrac ()
 706 {
 707   struct fn_decl *fn;
 708   const char *cptr;
 709   register struct symbol_list *cur_symbols;
 710
 711   if (required_unseen_count)
 712     {
 713 #ifdef NO_IMPLICIT_EXTERN_C
 714       fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
 715 #endif
 716     }
 717
 718   /* Now we print out prototypes for those functions that we haven't seen. */
 719   for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++)
 720     {
 721       int if_was_emitted = 0;
 722       int name_len;
 723       cptr = cur_symbols->names;
 724       for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1)
 725         {
 726           int macro_protect = 0;
 727
 728           if (cur_symbols->flags & MACRO_SYMBOL)
 729             continue;
 730
 731           fn = lookup_std_proto (cptr, name_len);
 732           if (fn == NULL || !REQUIRED (fn))
 733             continue;
 734
 735           if (!if_was_emitted)
 736             {
 737 /*            what about curses. ??? or _flsbuf/_filbuf ??? */
 738               if (cur_symbols->flags & ANSI_SYMBOL)
 739                 fprintf (outf,
 740          "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n");
 741               else if (cur_symbols->flags & (POSIX1_SYMBOL|POSIX2_SYMBOL))
 742                 fprintf (outf,
 743        "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\
 744     ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\
 745     : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n");
 746               else if (cur_symbols->flags & XOPEN_SYMBOL)
 747                 {
 748                 fprintf (outf,
 749        "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\
 750    || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n");
 751                 }
 752               else if (cur_symbols->flags & XOPEN_EXTENDED_SYMBOL)
 753                 {
 754                 fprintf (outf,
 755        "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\
 756    || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n");
 757                 }
 758               else
 759                 {
 760                   fatal ("internal error for function %s", fn->fname);
 761                 }
 762               if_was_emitted = 1;
 763             }
 764
 765           /* In the case of memmove, protect in case the application
 766              defines it as a macro before including the header.  */
 767           if (!strcmp (fn->fname, "memmove")
 768               || !strcmp (fn->fname, "vprintf")
 769               || !strcmp (fn->fname, "vfprintf")
 770               || !strcmp (fn->fname, "vsprintf")
 771               || !strcmp (fn->fname, "rewinddir"))
 772             macro_protect = 1;
 773
 774           if (macro_protect)
 775             fprintf (outf, "#ifndef %s\n", fn->fname);
 776           fprintf (outf, "extern %s %s (%s);\n",
 777                    fn->rtype, fn->fname, fn->params);
 778           if (macro_protect)
 779             fprintf (outf, "#endif\n");
 780         }
 781       if (if_was_emitted)
 782         fprintf (outf,
 783                  "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n");
 784     }
 785   if (required_unseen_count)
 786     {
 787 #ifdef NO_IMPLICIT_EXTERN_C
 788       fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
 789 #endif
 790     }
 791
 792   switch (special_file_handling)
 793     {
 794     case errno_h:
 795       if (!seen_errno)
 796         fprintf (outf, "extern int errno;\n");
 797       break;
 798     case stdlib_h:
 799       if (!seen_EXIT_FAILURE)
 800         fprintf (outf, "#define EXIT_FAILURE 1\n");
 801       if (!seen_EXIT_SUCCESS)
 802         fprintf (outf, "#define EXIT_SUCCESS 0\n");
 803       break;
 804     case sys_stat_h:
 805       if (!seen_S_ISBLK && seen_S_IFBLK)
 806         fprintf (outf,
 807                  "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n");
 808       if (!seen_S_ISCHR && seen_S_IFCHR)
 809         fprintf (outf,
 810                  "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n");
 811       if (!seen_S_ISDIR && seen_S_IFDIR)
 812         fprintf (outf,
 813                  "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n");
 814       if (!seen_S_ISFIFO && seen_S_IFIFO)
 815         fprintf (outf,
 816                  "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n");
 817       if (!seen_S_ISLNK && seen_S_IFLNK)
 818         fprintf (outf,
 819                  "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n");
 820       if (!seen_S_ISREG && seen_S_IFREG)
 821         fprintf (outf,
 822                  "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n");
 823       break;
 824     }
 825
 826
 827 #if ADD_MISSING_EXTERN_C
 828   if (missing_extern_C_count + required_unseen_count > 0)
 829     fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
 830 #endif
 831 }
 832
 833 char *
 834 xstrdup (str)
 835      char *str;
 836 {
 837   char *copy = (char *) xmalloc (strlen (str) + 1);
 838   strcpy (copy, str);
 839   return copy;
 840 }
 841
 842 /* Returns 1 iff the file is properly protected from multiple inclusion:
 843    #ifndef PROTECT_NAME
 844    #define PROTECT_NAME
 845    #endif
 846
 847  */
 848
 849 #define INF_GET() (inf_ptr < inf_limit ? *(unsigned char*)inf_ptr++ : EOF)
 850 #define INF_UNGET(c) ((c)!=EOF && inf_ptr--)
 851
 852 int
 853 inf_skip_spaces (c)
 854      int c;
 855 {
 856   for (;;)
 857     {
 858       if (c == ' ' || c == '\t')
 859         c = INF_GET ();
 860       else if (c == '/')
 861         {
 862           c = INF_GET ();
 863           if (c != '*')
 864             {
 865               INF_UNGET (c);
 866               return '/';
 867             }
 868           c = INF_GET ();
 869           for (;;)
 870             {
 871               if (c == EOF)
 872                 return EOF;
 873               else if (c != '*')
 874                 {
 875                   if (c == '\n')
 876                     source_lineno++, lineno++;
 877                   c = INF_GET ();
 878                 }
 879               else if ((c = INF_GET ()) == '/')
 880                 return INF_GET ();
 881             }
 882         }
 883       else
 884         break;
 885     }
 886   return c;
 887 }
 888
 889 /* Read into STR from inf_buffer upto DELIM. */
 890
 891 int
 892 inf_read_upto (str, delim)
 893      sstring *str;
 894      int delim;
 895 {
 896   int ch;
 897   for (;;)
 898     {
 899       ch = INF_GET ();
 900       if (ch == EOF || ch == delim)
 901         break;
 902       SSTRING_PUT (str, ch);
 903     }
 904   MAKE_SSTRING_SPACE (str, 1);
 905   *str->ptr = 0;
 906   return ch;
 907 }
 908
 909 int
 910 inf_scan_ident (s, c)
 911      register sstring *s;
 912      int c;
 913 {
 914   s->ptr = s->base;
 915   if (isalpha (c) || c == '_')
 916     {
 917       for (;;)
 918         {
 919           SSTRING_PUT (s, c);
 920           c = INF_GET ();
 921           if (c == EOF || !(isalnum (c) || c == '_'))
 922             break;
 923         }
 924     }
 925   MAKE_SSTRING_SPACE (s, 1);
 926   *s->ptr = 0;
 927   return c;
 928 }
 929
 930 /* Returns 1 if the file is correctly protected against multiple
 931    inclusion, setting *ifndef_line to the line number of the initial #ifndef
 932    and setting *endif_line to the final #endif.
 933    Otherwise return 0. */
 934
 935 int
 936 check_protection (ifndef_line, endif_line)
 937      int *ifndef_line, *endif_line;
 938 {
 939   int c;
 940   int if_nesting = 1; /* Level of nesting of #if's */
 941   char *protect_name = NULL; /* Identifier following initial #ifndef */
 942   int define_seen = 0;
 943
 944   /* Skip initial white space (including comments). */
 945   for (;; lineno++)
 946     {
 947       c = inf_skip_spaces (' ');
 948       if (c == EOF)
 949         return 0;
 950       if (c != '\n')
 951         break;
 952     }
 953   if (c != '#')
 954     return 0;
 955   c = inf_scan_ident (&buf, inf_skip_spaces (' '));
 956   if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0)
 957     return 0;
 958
 959   /* So far so good: We've seen an initial #ifndef. */
 960   *ifndef_line = lineno;
 961   c = inf_scan_ident (&buf, inf_skip_spaces (c));
 962   if (SSTRING_LENGTH (&buf) == 0 || c == EOF)
 963     return 0;
 964   protect_name = xstrdup (buf.base);
 965
 966   INF_UNGET (c);
 967   c = inf_read_upto (&buf, '\n');
 968   if (c == EOF)
 969     return 0;
 970   lineno++;
 971
 972   for (;;)
 973     {
 974       c = inf_skip_spaces (' ');
 975       if (c == EOF)
 976         return 0;
 977       if (c == '\n')
 978         {
 979           lineno++;
 980           continue;
 981         }
 982       if (c != '#')
 983         goto skip_to_eol;
 984       c = inf_scan_ident (&buf, inf_skip_spaces (' '));
 985       if (SSTRING_LENGTH (&buf) == 0)
 986         ;
 987       else if (!strcmp (buf.base, "ifndef")
 988           || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if"))
 989         {
 990           if_nesting++;
 991         }
 992       else if (!strcmp (buf.base, "endif"))
 993         {
 994           if_nesting--;
 995           if (if_nesting == 0)
 996             break;
 997         }
 998       else if (!strcmp (buf.base, "else"))
 999         {
1000           if (if_nesting == 1)
1001             return 0;
1002         }
1003       else if (!strcmp (buf.base, "define"))
1004         {
1005           if (if_nesting != 1)
1006             goto skip_to_eol;
1007           c = inf_skip_spaces (c);
1008           c = inf_scan_ident (&buf, c);
1009           if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0)
1010             define_seen = 1;
1011         }
1012     skip_to_eol:
1013       for (;;)
1014         {
1015           if (c == '\n' || c == EOF)
1016             break;
1017           c = INF_GET ();
1018         }
1019       if (c == EOF)
1020         return 0;
1021       lineno++;
1022     }
1023
1024   if (!define_seen)
1025      return 0;
1026   *endif_line = lineno;
1027   /* Skip final white space (including comments). */
1028   for (;;)
1029     {
1030       c = inf_skip_spaces (' ');
1031       if (c == EOF)
1032         break;
1033       if (c != '\n')
1034         return 0;
1035     }
1036
1037   return 1;
1038 }
1039
1040 int
1041 main (argc, argv)
1042      int argc;
1043      char **argv;
1044 {
1045   int inf_fd;
1046   struct stat sbuf;
1047   int c;
1048   int i, done;
1049   const char *cptr, **pptr;
1050   int ifndef_line;
1051   int endif_line;
1052   long to_read;
1053   long int inf_size;
1054   register struct symbol_list *cur_symbols;
1055
1056   if (argv[0] && argv[0][0])
1057     {
1058       register char *p;
1059
1060       progname = 0;
1061       for (p = argv[0]; *p; p++)
1062         if (*p == '/')
1063           progname = p;
1064       progname = progname ? progname+1 : argv[0];
1065     }
1066
1067   if (argc < 4)
1068     {
1069       fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n",
1070                progname);
1071       exit (-1);
1072     }
1073
1074   inc_filename = argv[1];
1075   inc_filename_length = strlen (inc_filename);
1076
1077 #ifdef FIXPROTO_IGNORE_LIST
1078   for (i = 0; files_to_ignore[i] != NULL; i++)
1079     {
1080       char *ignore_name = files_to_ignore[i];
1081       int ignore_len = strlen (ignore_name);
1082       if (strncmp (inc_filename, ignore_name, ignore_len) == 0)
1083         {
1084           if (ignore_name[ignore_len-1] == '/'
1085               || inc_filename[ignore_len] == '\0')
1086             {
1087               if (verbose)
1088                 fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename);
1089               exit (0);
1090             }
1091         }
1092
1093     }
1094 #endif
1095
1096   if (strcmp (inc_filename, "sys/stat.h") == 0)
1097     special_file_handling = sys_stat_h;
1098   else if (strcmp (inc_filename, "errno.h") == 0)
1099     special_file_handling = errno_h, required_other++;
1100   else if (strcmp (inc_filename, "stdlib.h") == 0)
1101     special_file_handling = stdlib_h, required_other+=2;
1102   else if (strcmp (inc_filename, "stdio.h") == 0)
1103     special_file_handling = stdio_h;
1104   include_entry = std_include_table;
1105   while (include_entry->name != NULL
1106          && (include_entry->name == CONTINUED
1107              || strcmp (inc_filename, include_entry->name) != 0))
1108     include_entry++;
1109
1110   if (include_entry->name != NULL)
1111     {
1112       struct std_include_entry *entry;
1113       cur_symbol_table_size = 0;
1114       for (entry = include_entry; ;)
1115         {
1116           add_symbols (entry->flags, entry->names);
1117           entry++;
1118           if (entry->name != CONTINUED)
1119             break;
1120         }
1121     }
1122   else
1123     symbol_table[0].names = NULL;
1124
1125   /* Count and mark the prototypes required for this include file. */
1126   for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++)
1127     {
1128       int name_len;
1129       if (cur_symbols->flags & MACRO_SYMBOL)
1130         continue;
1131       cptr = cur_symbols->names;
1132       for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1)
1133         {
1134           struct fn_decl *fn = lookup_std_proto (cptr, name_len);
1135           required_unseen_count++;
1136           if (fn == NULL)
1137             fprintf (stderr, "Internal error:  No prototype for %s\n", cptr);
1138           else
1139             SET_REQUIRED (fn);
1140         }
1141     }
1142
1143   read_scan_file (argv[2], argc - 4, argv + 4);
1144
1145   inf_fd = open (argv[2], O_RDONLY, 0666);
1146   if (inf_fd < 0)
1147     {
1148       fprintf (stderr, "%s: Cannot open '%s' for reading -",
1149                progname, argv[2]);
1150       perror (NULL);
1151       exit (-1);
1152     }
1153   if (fstat (inf_fd, &sbuf) < 0)
1154     {
1155       fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]);
1156       perror (NULL);
1157       exit (-1);
1158     }
1159   inf_size = sbuf.st_size;
1160   inf_buffer = (char*) xmalloc (inf_size + 2);
1161   inf_buffer[inf_size] = '\n';
1162   inf_buffer[inf_size + 1] = '\0';
1163   inf_limit = inf_buffer + inf_size;
1164   inf_ptr = inf_buffer;
1165
1166   to_read = inf_size;
1167   while (to_read > 0)
1168     {
1169       long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read);
1170       if (i < 0)
1171         {
1172           fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]);
1173           perror (NULL);
1174           exit (-1);
1175         }
1176       if (i == 0)
1177         {
1178           inf_size -= to_read;
1179           break;
1180         }
1181       to_read -= i;
1182     }
1183
1184   close (inf_fd);
1185
1186   /* If file doesn't end with '\n', add one. */
1187   if (inf_limit > inf_buffer && inf_limit[-1] != '\n')
1188     inf_limit++;
1189
1190   unlink (argv[3]);
1191   outf = fopen (argv[3], "w");
1192   if (outf == NULL)
1193     {
1194       fprintf (stderr, "%s: Cannot open '%s' for writing -",
1195                progname, argv[3]);
1196       perror (NULL);
1197       exit (-1);
1198     }
1199
1200   lineno = 1;
1201
1202   if (check_protection (&ifndef_line, &endif_line))
1203     {
1204       lbrac_line = ifndef_line+1;
1205       rbrac_line = endif_line;
1206     }
1207   else
1208     {
1209       lbrac_line = 1;
1210       rbrac_line = -1;
1211     }
1212
1213   /* Reset input file. */
1214   inf_ptr = inf_buffer;
1215   lineno = 1;
1216
1217   for (;;)
1218     {
1219       if (lineno == lbrac_line)
1220         write_lbrac ();
1221       if (lineno == rbrac_line)
1222         write_rbrac ();
1223       for (;;)
1224         {
1225           struct fn_decl *fn;
1226           c = INF_GET ();
1227           if (c == EOF)
1228             break;
1229           if (isalpha (c) || c == '_')
1230             {
1231               c = inf_scan_ident (&buf, c);
1232               INF_UNGET (c);
1233               fputs (buf.base, outf);
1234               fn = lookup_std_proto (buf.base, strlen (buf.base));
1235               /* We only want to edit the declaration matching the one
1236                  seen by scan-decls, as there can be multiple
1237                  declarations, selected by #ifdef __STDC__ or whatever. */
1238               if (fn && fn->partial && fn->partial->line_seen == lineno)
1239                 {
1240                   c = inf_skip_spaces (' ');
1241                   if (c == EOF)
1242                     break;
1243                   if (c == '(')
1244                     {
1245                       c = inf_skip_spaces (' ');
1246                       if (c == ')')
1247                         {
1248                           fprintf (outf, " _PARAMS((%s))", fn->params);
1249                         }
1250                       else
1251                         {
1252                           putc ('(', outf);
1253                           INF_UNGET (c);
1254                         }
1255                     }
1256                   else
1257                     fprintf (outf, " %c", c);
1258                 }
1259             }
1260           else
1261             {
1262               putc (c, outf);
1263               if (c == '\n')
1264                 break;
1265             }
1266         }
1267       if (c == EOF)
1268         break;
1269       lineno++;
1270     }
1271   if (rbrac_line < 0)
1272     write_rbrac ();
1273
1274   fclose (outf);
1275
1276   return 0;
1277 }
1278 \f
1279 /* Stub error functions.  These replace cpperror.c,
1280    because we want to suppress error messages. */
1281
1282 void
1283 cpp_file_line_for_message (pfile, filename, line, column)
1284      cpp_reader *pfile;
1285      char *filename;
1286      int line, column;
1287 {
1288   if (!verbose)
1289     return;
1290   if (column > 0)
1291     fprintf (stderr, "%s:%d:%d: ", filename, line, column);
1292   else
1293     fprintf (stderr, "%s:%d: ", filename, line);
1294 }
1295
1296 void
1297 cpp_print_containing_files (pfile)
1298      cpp_reader *pfile;
1299 {
1300 }
1301
1302 /* IS_ERROR is 1 for error, 0 for warning */
1303 void cpp_message (pfile, is_error, msg, arg1, arg2, arg3)
1304      int is_error;
1305      cpp_reader *pfile;
1306      char *msg;
1307      char *arg1, *arg2, *arg3;
1308 {
1309   if (is_error)
1310     pfile->errors++;
1311   if (!verbose)
1312     return;
1313   if (!is_error)
1314     fprintf (stderr, "warning: ");
1315   fprintf (stderr, msg, arg1, arg2, arg3);
1316   fprintf (stderr, "\n");
1317 }
1318
1319 void
1320 fatal (str, arg)
1321      char *str, *arg;
1322 {
1323   fprintf (stderr, "%s: %s: ", progname, inc_filename);
1324   fprintf (stderr, str, arg);
1325   fprintf (stderr, "\n");
1326   exit (FATAL_EXIT_CODE);
1327 }
1328
1329 void
1330 cpp_pfatal_with_name (pfile, name)
1331      cpp_reader *pfile;
1332      char *name;
1333 {
1334   cpp_perror_with_name (pfile, name);
1335   exit (FATAL_EXIT_CODE);
1336 }