fix-header.c revision 52284
1/* fix-header.c - Make C header file suitable for C++. 2 Copyright (C) 1993, 94-98, 1999 Free Software Foundation, Inc. 3 4This program is free software; you can redistribute it and/or modify it 5under the terms of the GNU General Public License as published by the 6Free Software Foundation; either version 2, or (at your option) any 7later version. 8 9This program is distributed in the hope that it will be useful, 10but WITHOUT ANY WARRANTY; without even the implied warranty of 11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12GNU General Public License for more details. 13 14You should have received a copy of the GNU General Public License 15along with this program; if not, write to the Free Software 16Foundation, 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 that is compatible with GNU C and GNU 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 list 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 "hconfig.h" 74#include "system.h" 75#include "obstack.h" 76#include "scan.h" 77#include "cpplib.h" 78#include "cpphash.h" 79 80static void v_fatal PROTO ((const char *, va_list)) ATTRIBUTE_NORETURN; 81void fatal PVPROTO ((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 char *files_to_ignore[] = { 108 "X11/", 109 FIXPROTO_IGNORE_LIST 110 0 111}; 112#endif 113 114char *inf_buffer; 115char *inf_limit; 116char *inf_ptr; 117 118/* Certain standard files get extra treatment */ 119 120enum special_file 121{ 122 no_special, 123#ifdef errno_h 124#undef errno_h 125#endif 126 errno_h, 127#ifdef stdio_h 128#undef stdio_h 129#endif 130 stdio_h, 131#ifdef stdlib_h 132#undef stdlib_h 133#endif 134 stdlib_h, 135#ifdef sys_stat_h 136#undef sys_stat_h 137#endif 138 sys_stat_h 139}; 140 141/* A NAMELIST is a sequence of names, separated by '\0', and terminated 142 by an empty name (i.e. by "\0\0"). */ 143 144typedef const char *namelist; 145 146/* The following macros provide the bits for symbol_flags. */ 147typedef int symbol_flags; 148 149/* Used to mark names defined in the ANSI/ISO C standard. */ 150#define ANSI_SYMBOL 1 151 152/* We no longer massage include files for POSIX or XOPEN symbols, 153 as there are now several versions of the POSIX and XOPEN standards, 154 and it would be a maintenance nightmare for us to track them all. 155 Better to be compatible with the system include files. */ 156/*#define ADD_MISSING_POSIX 1 */ 157/*#define ADD_MISSING_XOPEN 1 */ 158 159#if ADD_MISSING_POSIX 160/* Used to mark names defined in the Posix.1 or Posix.2 standard. */ 161#define POSIX1_SYMBOL 2 162#define POSIX2_SYMBOL 4 163#else 164#define POSIX1_SYMBOL 0 165#define POSIX2_SYMBOL 0 166#endif 167 168#if ADD_MISSING_XOPEN 169/* Used to mark names defined in X/Open Portability Guide. */ 170#define XOPEN_SYMBOL 8 171/* Used to mark names defined in X/Open UNIX Extensions. */ 172#define XOPEN_EXTENDED_SYMBOL 16 173#else 174#define XOPEN_SYMBOL 0 175#define XOPEN_EXTENDED_SYMBOL 0 176#endif 177 178/* Used to indicate names that are not functions */ 179#define MACRO_SYMBOL 512 180 181struct symbol_list { 182 symbol_flags flags; 183 namelist names; 184}; 185 186#define SYMBOL_TABLE_SIZE 10 187struct symbol_list symbol_table[SYMBOL_TABLE_SIZE]; 188int cur_symbol_table_size; 189 190void 191add_symbols (flags, names) 192 symbol_flags flags; 193 namelist names; 194{ 195 symbol_table[cur_symbol_table_size].flags = flags; 196 symbol_table[cur_symbol_table_size].names = names; 197 cur_symbol_table_size++; 198 if (cur_symbol_table_size >= SYMBOL_TABLE_SIZE) 199 fatal ("too many calls to add_symbols"); 200 symbol_table[cur_symbol_table_size].names = NULL; /* Termination. */ 201} 202 203struct std_include_entry { 204 const char *name; 205 symbol_flags flags; 206 namelist names; 207}; 208 209const char NONE[] = ""; /* The empty namelist. */ 210 211/* Special name to indicate a continuation line in std_include_table. */ 212const char CONTINUED[] = ""; 213 214struct std_include_entry *include_entry; 215 216struct std_include_entry std_include_table [] = { 217 { "ctype.h", ANSI_SYMBOL, 218 "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\ 219isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" }, 220 221 { "dirent.h", POSIX1_SYMBOL, "closedir\0opendir\0readdir\0rewinddir\0"}, 222 223 { "errno.h", ANSI_SYMBOL|MACRO_SYMBOL, "errno\0" }, 224 225 /* ANSI_SYMBOL is wrong, but ... */ 226 { "curses.h", ANSI_SYMBOL, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\ 227mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\ 228scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\ 229waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\ 230wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" }, 231 232 { "fcntl.h", POSIX1_SYMBOL, "creat\0fcntl\0open\0" }, 233 234 /* Maybe also "getgrent fgetgrent setgrent endgrent" */ 235 { "grp.h", POSIX1_SYMBOL, "getgrgid\0getgrnam\0" }, 236 237/*{ "limit.h", ... provided by gcc }, */ 238 239 { "locale.h", ANSI_SYMBOL, "localeconv\0setlocale\0" }, 240 241 { "math.h", ANSI_SYMBOL, 242 "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\ 243fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\ 244tan\0tanh\0" }, 245 246 { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "HUGE_VAL\0" }, 247 248 { "pwd.h", POSIX1_SYMBOL, "getpwnam\0getpwuid\0" }, 249 250 /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */ 251 { "setjmp.h", ANSI_SYMBOL, "longjmp\0setjmp\0" }, 252 253 /* Left out signal() - its prototype is too complex for us! 254 Also left out "sigaction sigaddset sigdelset sigemptyset 255 sigfillset sigismember sigpending sigprocmask sigsuspend" 256 because these need sigset_t or struct sigaction. 257 Most systems that provide them will also declare them. */ 258 { "signal.h", ANSI_SYMBOL, "kill\0raise\0" }, 259 260 { "stdio.h", ANSI_SYMBOL, 261 "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\ 262fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\ 263fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0perror\0\ 264printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\ 265setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\ 266tmpnam\0ungetc\0" }, 267 { CONTINUED, POSIX1_SYMBOL, "fdopen\0fileno\0" }, 268 { CONTINUED, POSIX2_SYMBOL, "pclose\0popen\0" }, /* I think ... */ 269/* Should perhaps also handle NULL, EOF, ... ? */ 270 271 /* "div ldiv", - ignored because these depend on div_t, ldiv_t 272 ignore these: "mblen mbstowcs mbstowc wcstombs wctomb" 273 Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions. 274 Should perhaps also add NULL */ 275 { "stdlib.h", ANSI_SYMBOL, 276 "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\ 277exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\ 278srand\0strtod\0strtol\0strtoul\0system\0" }, 279 { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "EXIT_FAILURE\0EXIT_SUCCESS\0" }, 280 281 { "string.h", ANSI_SYMBOL, "memchr\0memcmp\0memcpy\0memmove\0memset\0\ 282strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\ 283strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\ 284strtok\0strxfrm\0" }, 285/* Should perhaps also add NULL and size_t */ 286 287 { "strings.h", XOPEN_EXTENDED_SYMBOL, 288 "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" }, 289 290 { "strops.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, 291 292 /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines 293 ioctl in <strops.h>. However, many systems have it is sys/ioctl.h, 294 and many systems do have <sys/ioctl.h> but not <strops.h>. */ 295 { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, 296 297 { "sys/socket.h", XOPEN_EXTENDED_SYMBOL, "socket\0" }, 298 299 { "sys/stat.h", POSIX1_SYMBOL, 300 "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" }, 301 { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, 302 "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\ 303S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" }, 304 { CONTINUED, XOPEN_EXTENDED_SYMBOL, "fchmod\0" }, 305 306#if 0 307/* How do we handle fd_set? */ 308 { "sys/time.h", XOPEN_EXTENDED_SYMBOL, "select\0" }, 309 { "sys/select.h", XOPEN_EXTENDED_SYMBOL /* fake */, "select\0" }, 310#endif 311 312 { "sys/times.h", POSIX1_SYMBOL, "times\0" }, 313 /* "sys/types.h" add types (not in old g++-include) */ 314 315 { "sys/utsname.h", POSIX1_SYMBOL, "uname\0" }, 316 317 { "sys/wait.h", POSIX1_SYMBOL, "wait\0waitpid\0" }, 318 { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, 319 "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\ 320WTERMSIG\0WNOHANG\0WNOTRACED\0" }, 321 322 { "tar.h", POSIX1_SYMBOL, NONE }, 323 324 { "termios.h", POSIX1_SYMBOL, 325 "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" }, 326 327 { "time.h", ANSI_SYMBOL, 328 "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" }, 329 330 { "unistd.h", POSIX1_SYMBOL, 331 "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\ 332dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\ 333getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\ 334getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\ 335setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\ 336ttyname\0unlink\0write\0" }, 337 { CONTINUED, POSIX2_SYMBOL, "getopt\0" }, 338 { CONTINUED, XOPEN_EXTENDED_SYMBOL, 339 "lockf\0gethostid\0gethostname\0readlink\0symlink\0" }, 340 341 { "utime.h", POSIX1_SYMBOL, "utime\0" }, 342 343 { NULL, 0, NONE } 344}; 345 346enum special_file special_file_handling = no_special; 347 348/* They are set if the corresponding macro has been seen. */ 349/* The following are only used when handling sys/stat.h */ 350int seen_S_IFBLK = 0, seen_S_ISBLK = 0; 351int seen_S_IFCHR = 0, seen_S_ISCHR = 0; 352int seen_S_IFDIR = 0, seen_S_ISDIR = 0; 353int seen_S_IFIFO = 0, seen_S_ISFIFO = 0; 354int seen_S_IFLNK = 0, seen_S_ISLNK = 0; 355int seen_S_IFREG = 0, seen_S_ISREG = 0; 356/* The following are only used when handling errno.h */ 357int seen_errno = 0; 358/* The following are only used when handling stdlib.h */ 359int seen_EXIT_FAILURE = 0, seen_EXIT_SUCCESS = 0; 360 361/* Wrapper around free, to avoid prototype clashes. */ 362 363void 364xfree (ptr) 365 char *ptr; 366{ 367 free (ptr); 368} 369 370#define obstack_chunk_alloc xmalloc 371#define obstack_chunk_free xfree 372struct obstack scan_file_obstack; 373 374/* NOTE: If you edit this, also edit gen-protos.c !! */ 375 376struct fn_decl * 377lookup_std_proto (name, name_length) 378 const char *name; 379 int name_length; 380{ 381 int i = hashf (name, name_length, HASH_SIZE); 382 int i0 = i; 383 for (;;) 384 { 385 struct fn_decl *fn; 386 if (hash_tab[i] == 0) 387 return NULL; 388 fn = &std_protos[hash_tab[i]]; 389 if ((int) strlen (fn->fname) == name_length 390 && strncmp (fn->fname, name, name_length) == 0) 391 return fn; 392 i = (i+1) % HASH_SIZE; 393 if (i == i0) 394 abort (); 395 } 396} 397 398char *inc_filename; 399int inc_filename_length; 400char *progname = "fix-header"; 401FILE *outf; 402sstring line; 403 404int lbrac_line, rbrac_line; 405 406int required_unseen_count = 0; 407int required_other = 0; 408 409void 410write_lbrac () 411{ 412 413#if ADD_MISSING_EXTERN_C 414 if (missing_extern_C_count + required_unseen_count > 0) 415 fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); 416#endif 417 418 if (partial_count) 419 { 420 fprintf (outf, "#ifndef _PARAMS\n"); 421 fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n"); 422 fprintf (outf, "#define _PARAMS(ARGS) ARGS\n"); 423 fprintf (outf, "#else\n"); 424 fprintf (outf, "#define _PARAMS(ARGS) ()\n"); 425 fprintf (outf, "#endif\n#endif /* _PARAMS */\n"); 426 } 427} 428 429struct partial_proto 430{ 431 struct partial_proto *next; 432 char *fname; /* name of function */ 433 char *rtype; /* return type */ 434 struct fn_decl *fn; 435 int line_seen; 436}; 437 438struct partial_proto *partial_proto_list = NULL; 439 440struct partial_proto required_dummy_proto, seen_dummy_proto; 441#define REQUIRED(FN) ((FN)->partial == &required_dummy_proto) 442#define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto) 443#define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto) 444#define SEEN(FN) ((FN)->partial == &seen_dummy_proto) 445 446void 447recognized_macro (fname) 448 char *fname; 449{ 450 /* The original include file defines fname as a macro. */ 451 struct fn_decl *fn = lookup_std_proto (fname, strlen (fname)); 452 453 /* Since fname is a macro, don't require a prototype for it. */ 454 if (fn) 455 { 456 if (REQUIRED (fn)) 457 required_unseen_count--; 458 SET_SEEN (fn); 459 } 460 461 switch (special_file_handling) 462 { 463 case errno_h: 464 if (strcmp (fname, "errno") == 0 && !seen_errno) 465 seen_errno = 1, required_other--; 466 break; 467 case stdlib_h: 468 if (strcmp (fname, "EXIT_FAILURE") == 0 && !seen_EXIT_FAILURE) 469 seen_EXIT_FAILURE = 1, required_other--; 470 if (strcmp (fname, "EXIT_SUCCESS") == 0 && !seen_EXIT_SUCCESS) 471 seen_EXIT_SUCCESS = 1, required_other--; 472 break; 473 case sys_stat_h: 474 if (fname[0] == 'S' && fname[1] == '_') 475 { 476 if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++; 477 else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++; 478 else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++; 479 else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++; 480 else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++; 481 else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++; 482 else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++; 483 else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++; 484 else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++; 485 else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++; 486 else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++; 487 else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++; 488 } 489 break; 490 491 default: 492 break; 493 } 494} 495 496void 497recognized_extern (name, name_length, type, type_length) 498 char *name; 499 char *type; 500 int name_length, type_length; 501{ 502 switch (special_file_handling) 503 { 504 case errno_h: 505 if (name_length == 5 && strncmp (name, "errno", 5) == 0 && !seen_errno) 506 seen_errno = 1, required_other--; 507 break; 508 509 default: 510 break; 511 } 512} 513 514/* Called by scan_decls if it saw a function definition for a function 515 named FNAME, with return type RTYPE, and argument list ARGS, 516 in source file FILE_SEEN on line LINE_SEEN. 517 KIND is 'I' for an inline function; 518 'F' if a normal function declaration preceded by 'extern "C"' 519 (or nested inside 'extern "C"' braces); or 520 'f' for other function declarations. */ 521 522void 523recognized_function (fname, fname_length, 524 kind, rtype, rtype_length, 525 have_arg_list, file_seen, line_seen) 526 char *fname; 527 int fname_length; 528 int kind; /* One of 'f' 'F' or 'I' */ 529 char *rtype; 530 int rtype_length; 531 int have_arg_list; 532 char *file_seen; 533 int line_seen; 534{ 535 struct partial_proto *partial; 536 int i; 537 struct fn_decl *fn; 538#if ADD_MISSING_EXTERN_C 539 if (kind == 'f') 540 missing_extern_C_count++; 541#endif 542 543 fn = lookup_std_proto (fname, fname_length); 544 545 /* Remove the function from the list of required function. */ 546 if (fn) 547 { 548 if (REQUIRED (fn)) 549 required_unseen_count--; 550 SET_SEEN (fn); 551 } 552 553 /* If we have a full prototype, we're done. */ 554 if (have_arg_list) 555 return; 556 557 if (kind == 'I') /* don't edit inline function */ 558 return; 559 560 /* If the partial prototype was included from some other file, 561 we don't need to patch it up (in this run). */ 562 i = strlen (file_seen); 563 if (i < inc_filename_length 564 || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0) 565 return; 566 567 if (fn == NULL) 568 return; 569 if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0) 570 return; 571 572 /* We only have a partial function declaration, 573 so remember that we have to add a complete prototype. */ 574 partial_count++; 575 partial = (struct partial_proto *) 576 obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto)); 577 partial->fname = obstack_alloc (&scan_file_obstack, fname_length + 1); 578 bcopy (fname, partial->fname, fname_length); 579 partial->fname[fname_length] = 0; 580 partial->rtype = obstack_alloc (&scan_file_obstack, rtype_length + 1); 581 sprintf (partial->rtype, "%.*s", rtype_length, rtype); 582 partial->line_seen = line_seen; 583 partial->fn = fn; 584 fn->partial = partial; 585 partial->next = partial_proto_list; 586 partial_proto_list = partial; 587 if (verbose) 588 { 589 fprintf (stderr, "(%s: %s non-prototype function declaration.)\n", 590 inc_filename, partial->fname); 591 } 592} 593 594/* For any name in NAMES that is defined as a macro, 595 call recognized_macro on it. */ 596 597void 598check_macro_names (pfile, names) 599 cpp_reader *pfile; 600 namelist names; 601{ 602 while (*names) 603 { 604 if (cpp_lookup (pfile, names, -1, -1)) 605 recognized_macro (names); 606 names += strlen (names) + 1; 607 } 608} 609 610void 611read_scan_file (in_fname, argc, argv) 612 char *in_fname; 613 int argc; 614 char **argv; 615{ 616 cpp_reader scan_in; 617 cpp_options scan_options; 618 struct fn_decl *fn; 619 int i; 620 register struct symbol_list *cur_symbols; 621 622 obstack_init (&scan_file_obstack); 623 624 cpp_reader_init (&scan_in); 625 scan_in.opts = &scan_options; 626 cpp_options_init (&scan_options); 627 i = cpp_handle_options (&scan_in, argc, argv); 628 if (i < argc && ! CPP_FATAL_ERRORS (&scan_in)) 629 cpp_fatal (&scan_in, "Invalid option `%s'", argv[i]); 630 if (CPP_FATAL_ERRORS (&scan_in)) 631 exit (FATAL_EXIT_CODE); 632 633 if (! cpp_start_read (&scan_in, in_fname)) 634 exit (FATAL_EXIT_CODE); 635 CPP_OPTIONS (&scan_in)->no_line_commands = 1; 636 637 scan_decls (&scan_in, argc, argv); 638 for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) 639 check_macro_names (&scan_in, cur_symbols->names); 640 641 if (verbose && (scan_in.errors + warnings) > 0) 642 fprintf (stderr, "(%s: %d errors and %d warnings from cpp)\n", 643 inc_filename, scan_in.errors, warnings); 644 if (scan_in.errors) 645 exit (SUCCESS_EXIT_CODE); 646 647 /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf. 648 If so, those functions are also required. */ 649 if (special_file_handling == stdio_h 650 && (fn = lookup_std_proto ("_filbuf", 7)) != NULL) 651 { 652 static char getchar_call[] = "getchar();"; 653 cpp_buffer *buf 654 = cpp_push_buffer (&scan_in, getchar_call, sizeof(getchar_call) - 1); 655 int old_written = CPP_WRITTEN (&scan_in); 656 int seen_filbuf = 0; 657 658 /* Scan the macro expansion of "getchar();". */ 659 for (;;) 660 { 661 enum cpp_token token = cpp_get_token (&scan_in); 662 int length = CPP_WRITTEN (&scan_in) - old_written; 663 CPP_SET_WRITTEN (&scan_in, old_written); 664 if (token == CPP_EOF) /* Should not happen ... */ 665 break; 666 if (token == CPP_POP && CPP_BUFFER (&scan_in) == buf) 667 { 668 cpp_pop_buffer (&scan_in); 669 break; 670 } 671 if (token == CPP_NAME && length == 7 672 && strcmp ("_filbuf", scan_in.token_buffer + old_written) == 0) 673 seen_filbuf++; 674 } 675 if (seen_filbuf) 676 { 677 int need_filbuf = !SEEN (fn) && !REQUIRED (fn); 678 struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7); 679 int need_flsbuf 680 = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn); 681 682 /* Append "_filbuf" and/or "_flsbuf" to the required functions. */ 683 if (need_filbuf + need_flsbuf) 684 { 685 const char *new_list; 686 if (need_filbuf) 687 SET_REQUIRED (fn); 688 if (need_flsbuf) 689 SET_REQUIRED (flsbuf_fn); 690 if (need_flsbuf + need_filbuf == 2) 691 new_list = "_filbuf\0_flsbuf\0"; 692 else if (need_flsbuf) 693 new_list = "_flsbuf\0"; 694 else /* if (need_flsbuf) */ 695 new_list = "_filbuf\0"; 696 add_symbols (ANSI_SYMBOL, new_list); 697 required_unseen_count += need_filbuf + need_flsbuf; 698 } 699 } 700 } 701 702 if (required_unseen_count + partial_count + required_other 703#if ADD_MISSING_EXTERN_C 704 + missing_extern_C_count 705#endif 706 == 0) 707 { 708 if (verbose) 709 fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename); 710 exit (SUCCESS_EXIT_CODE); 711 } 712 if (!verbose) 713 fprintf (stderr, "%s: fixing %s\n", progname, inc_filename); 714 else 715 { 716 if (required_unseen_count) 717 fprintf (stderr, "%s: %d missing function declarations.\n", 718 inc_filename, required_unseen_count); 719 if (partial_count) 720 fprintf (stderr, "%s: %d non-prototype function declarations.\n", 721 inc_filename, partial_count); 722#if ADD_MISSING_EXTERN_C 723 if (missing_extern_C_count) 724 fprintf (stderr, 725 "%s: %d declarations not protected by extern \"C\".\n", 726 inc_filename, missing_extern_C_count); 727#endif 728 } 729} 730 731void 732write_rbrac () 733{ 734 struct fn_decl *fn; 735 const char *cptr; 736 register struct symbol_list *cur_symbols; 737 738 if (required_unseen_count) 739 { 740#ifdef NO_IMPLICIT_EXTERN_C 741 fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); 742#endif 743 } 744 745 /* Now we print out prototypes for those functions that we haven't seen. */ 746 for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) 747 { 748 int if_was_emitted = 0; 749 int name_len; 750 cptr = cur_symbols->names; 751 for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) 752 { 753 int macro_protect = 0; 754 755 if (cur_symbols->flags & MACRO_SYMBOL) 756 continue; 757 758 fn = lookup_std_proto (cptr, name_len); 759 if (fn == NULL || !REQUIRED (fn)) 760 continue; 761 762 if (!if_was_emitted) 763 { 764/* what about curses. ??? or _flsbuf/_filbuf ??? */ 765 if (cur_symbols->flags & ANSI_SYMBOL) 766 fprintf (outf, 767 "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n"); 768 else if (cur_symbols->flags & (POSIX1_SYMBOL|POSIX2_SYMBOL)) 769 fprintf (outf, 770 "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\ 771 ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\ 772 : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n"); 773 else if (cur_symbols->flags & XOPEN_SYMBOL) 774 { 775 fprintf (outf, 776 "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ 777 || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n"); 778 } 779 else if (cur_symbols->flags & XOPEN_EXTENDED_SYMBOL) 780 { 781 fprintf (outf, 782 "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ 783 || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n"); 784 } 785 else 786 { 787 fatal ("internal error for function %s", fn->fname); 788 } 789 if_was_emitted = 1; 790 } 791 792 /* In the case of memmove, protect in case the application 793 defines it as a macro before including the header. */ 794 if (!strcmp (fn->fname, "memmove") 795 || !strcmp (fn->fname, "vprintf") 796 || !strcmp (fn->fname, "vfprintf") 797 || !strcmp (fn->fname, "vsprintf") 798 || !strcmp (fn->fname, "rewinddir") 799 || !strcmp (fn->fname, "abort")) 800 macro_protect = 1; 801 802 if (macro_protect) 803 fprintf (outf, "#ifndef %s\n", fn->fname); 804 fprintf (outf, "extern %s %s (%s);\n", 805 fn->rtype, fn->fname, fn->params); 806 if (macro_protect) 807 fprintf (outf, "#endif\n"); 808 } 809 if (if_was_emitted) 810 fprintf (outf, 811 "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n"); 812 } 813 if (required_unseen_count) 814 { 815#ifdef NO_IMPLICIT_EXTERN_C 816 fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); 817#endif 818 } 819 820 switch (special_file_handling) 821 { 822 case errno_h: 823 if (!seen_errno) 824 fprintf (outf, "extern int errno;\n"); 825 break; 826 case stdlib_h: 827 if (!seen_EXIT_FAILURE) 828 fprintf (outf, "#define EXIT_FAILURE 1\n"); 829 if (!seen_EXIT_SUCCESS) 830 fprintf (outf, "#define EXIT_SUCCESS 0\n"); 831 break; 832 case sys_stat_h: 833 if (!seen_S_ISBLK && seen_S_IFBLK) 834 fprintf (outf, 835 "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n"); 836 if (!seen_S_ISCHR && seen_S_IFCHR) 837 fprintf (outf, 838 "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n"); 839 if (!seen_S_ISDIR && seen_S_IFDIR) 840 fprintf (outf, 841 "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n"); 842 if (!seen_S_ISFIFO && seen_S_IFIFO) 843 fprintf (outf, 844 "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n"); 845 if (!seen_S_ISLNK && seen_S_IFLNK) 846 fprintf (outf, 847 "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n"); 848 if (!seen_S_ISREG && seen_S_IFREG) 849 fprintf (outf, 850 "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n"); 851 break; 852 853 default: 854 break; 855 } 856 857 858#if ADD_MISSING_EXTERN_C 859 if (missing_extern_C_count + required_unseen_count > 0) 860 fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); 861#endif 862} 863 864/* Returns 1 iff the file is properly protected from multiple inclusion: 865 #ifndef PROTECT_NAME 866 #define PROTECT_NAME 867 #endif 868 869 */ 870 871#define INF_GET() (inf_ptr < inf_limit ? *(unsigned char *) inf_ptr++ : EOF) 872#define INF_UNGET(c) ((c)!=EOF && inf_ptr--) 873 874int 875inf_skip_spaces (c) 876 int c; 877{ 878 for (;;) 879 { 880 if (c == ' ' || c == '\t') 881 c = INF_GET (); 882 else if (c == '/') 883 { 884 c = INF_GET (); 885 if (c != '*') 886 { 887 (void) INF_UNGET (c); 888 return '/'; 889 } 890 c = INF_GET (); 891 for (;;) 892 { 893 if (c == EOF) 894 return EOF; 895 else if (c != '*') 896 { 897 if (c == '\n') 898 source_lineno++, lineno++; 899 c = INF_GET (); 900 } 901 else if ((c = INF_GET ()) == '/') 902 return INF_GET (); 903 } 904 } 905 else 906 break; 907 } 908 return c; 909} 910 911/* Read into STR from inf_buffer upto DELIM. */ 912 913int 914inf_read_upto (str, delim) 915 sstring *str; 916 int delim; 917{ 918 int ch; 919 for (;;) 920 { 921 ch = INF_GET (); 922 if (ch == EOF || ch == delim) 923 break; 924 SSTRING_PUT (str, ch); 925 } 926 MAKE_SSTRING_SPACE (str, 1); 927 *str->ptr = 0; 928 return ch; 929} 930 931int 932inf_scan_ident (s, c) 933 register sstring *s; 934 int c; 935{ 936 s->ptr = s->base; 937 if (ISALPHA (c) || c == '_') 938 { 939 for (;;) 940 { 941 SSTRING_PUT (s, c); 942 c = INF_GET (); 943 if (c == EOF || !(ISALNUM (c) || c == '_')) 944 break; 945 } 946 } 947 MAKE_SSTRING_SPACE (s, 1); 948 *s->ptr = 0; 949 return c; 950} 951 952/* Returns 1 if the file is correctly protected against multiple 953 inclusion, setting *ifndef_line to the line number of the initial #ifndef 954 and setting *endif_line to the final #endif. 955 Otherwise return 0. */ 956 957int 958check_protection (ifndef_line, endif_line) 959 int *ifndef_line, *endif_line; 960{ 961 int c; 962 int if_nesting = 1; /* Level of nesting of #if's */ 963 char *protect_name = NULL; /* Identifier following initial #ifndef */ 964 int define_seen = 0; 965 966 /* Skip initial white space (including comments). */ 967 for (;; lineno++) 968 { 969 c = inf_skip_spaces (' '); 970 if (c == EOF) 971 return 0; 972 if (c != '\n') 973 break; 974 } 975 if (c != '#') 976 return 0; 977 c = inf_scan_ident (&buf, inf_skip_spaces (' ')); 978 if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0) 979 return 0; 980 981 /* So far so good: We've seen an initial #ifndef. */ 982 *ifndef_line = lineno; 983 c = inf_scan_ident (&buf, inf_skip_spaces (c)); 984 if (SSTRING_LENGTH (&buf) == 0 || c == EOF) 985 return 0; 986 protect_name = xstrdup (buf.base); 987 988 (void) INF_UNGET (c); 989 c = inf_read_upto (&buf, '\n'); 990 if (c == EOF) 991 return 0; 992 lineno++; 993 994 for (;;) 995 { 996 c = inf_skip_spaces (' '); 997 if (c == EOF) 998 return 0; 999 if (c == '\n') 1000 { 1001 lineno++; 1002 continue; 1003 } 1004 if (c != '#') 1005 goto skip_to_eol; 1006 c = inf_scan_ident (&buf, inf_skip_spaces (' ')); 1007 if (SSTRING_LENGTH (&buf) == 0) 1008 ; 1009 else if (!strcmp (buf.base, "ifndef") 1010 || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if")) 1011 { 1012 if_nesting++; 1013 } 1014 else if (!strcmp (buf.base, "endif")) 1015 { 1016 if_nesting--; 1017 if (if_nesting == 0) 1018 break; 1019 } 1020 else if (!strcmp (buf.base, "else")) 1021 { 1022 if (if_nesting == 1) 1023 return 0; 1024 } 1025 else if (!strcmp (buf.base, "define")) 1026 { 1027 if (if_nesting != 1) 1028 goto skip_to_eol; 1029 c = inf_skip_spaces (c); 1030 c = inf_scan_ident (&buf, c); 1031 if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0) 1032 define_seen = 1; 1033 } 1034 skip_to_eol: 1035 for (;;) 1036 { 1037 if (c == '\n' || c == EOF) 1038 break; 1039 c = INF_GET (); 1040 } 1041 if (c == EOF) 1042 return 0; 1043 lineno++; 1044 } 1045 1046 if (!define_seen) 1047 return 0; 1048 *endif_line = lineno; 1049 /* Skip final white space (including comments). */ 1050 for (;;) 1051 { 1052 c = inf_skip_spaces (' '); 1053 if (c == EOF) 1054 break; 1055 if (c != '\n') 1056 return 0; 1057 } 1058 1059 return 1; 1060} 1061 1062int 1063main (argc, argv) 1064 int argc; 1065 char **argv; 1066{ 1067 int inf_fd; 1068 struct stat sbuf; 1069 int c; 1070#ifdef FIXPROTO_IGNORE_LIST 1071 int i; 1072#endif 1073 const char *cptr; 1074 int ifndef_line; 1075 int endif_line; 1076 long to_read; 1077 long int inf_size; 1078 register struct symbol_list *cur_symbols; 1079 1080 if (argv[0] && argv[0][0]) 1081 { 1082 register char *p; 1083 1084 progname = 0; 1085 for (p = argv[0]; *p; p++) 1086 if (*p == '/') 1087 progname = p; 1088 progname = progname ? progname+1 : argv[0]; 1089 } 1090 1091 if (argc < 4) 1092 { 1093 fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n", 1094 progname); 1095 exit (FATAL_EXIT_CODE); 1096 } 1097 1098 inc_filename = argv[1]; 1099 inc_filename_length = strlen (inc_filename); 1100 1101#ifdef FIXPROTO_IGNORE_LIST 1102 for (i = 0; files_to_ignore[i] != NULL; i++) 1103 { 1104 char *ignore_name = files_to_ignore[i]; 1105 int ignore_len = strlen (ignore_name); 1106 if (strncmp (inc_filename, ignore_name, ignore_len) == 0) 1107 { 1108 if (ignore_name[ignore_len-1] == '/' 1109 || inc_filename[ignore_len] == '\0') 1110 { 1111 if (verbose) 1112 fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename); 1113 exit (SUCCESS_EXIT_CODE); 1114 } 1115 } 1116 1117 } 1118#endif 1119 1120 if (strcmp (inc_filename, "sys/stat.h") == 0) 1121 special_file_handling = sys_stat_h; 1122 else if (strcmp (inc_filename, "errno.h") == 0) 1123 special_file_handling = errno_h, required_other++; 1124 else if (strcmp (inc_filename, "stdlib.h") == 0) 1125 special_file_handling = stdlib_h, required_other+=2; 1126 else if (strcmp (inc_filename, "stdio.h") == 0) 1127 special_file_handling = stdio_h; 1128 include_entry = std_include_table; 1129 while (include_entry->name != NULL 1130 && ((strcmp (include_entry->name, CONTINUED) == 0) 1131 || strcmp (inc_filename, include_entry->name) != 0)) 1132 include_entry++; 1133 1134 if (include_entry->name != NULL) 1135 { 1136 struct std_include_entry *entry; 1137 cur_symbol_table_size = 0; 1138 for (entry = include_entry; ;) 1139 { 1140 if (entry->flags) 1141 add_symbols (entry->flags, entry->names); 1142 entry++; 1143 if (strcmp (entry->name, CONTINUED) != 0) 1144 break; 1145 } 1146 } 1147 else 1148 symbol_table[0].names = NULL; 1149 1150 /* Count and mark the prototypes required for this include file. */ 1151 for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) 1152 { 1153 int name_len; 1154 if (cur_symbols->flags & MACRO_SYMBOL) 1155 continue; 1156 cptr = cur_symbols->names; 1157 for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) 1158 { 1159 struct fn_decl *fn = lookup_std_proto (cptr, name_len); 1160 required_unseen_count++; 1161 if (fn == NULL) 1162 fprintf (stderr, "Internal error: No prototype for %s\n", cptr); 1163 else 1164 SET_REQUIRED (fn); 1165 } 1166 } 1167 1168 read_scan_file (argv[2], argc - 4, argv + 4); 1169 1170 inf_fd = open (argv[2], O_RDONLY, 0666); 1171 if (inf_fd < 0) 1172 { 1173 fprintf (stderr, "%s: Cannot open '%s' for reading -", 1174 progname, argv[2]); 1175 perror (NULL); 1176 exit (FATAL_EXIT_CODE); 1177 } 1178 if (fstat (inf_fd, &sbuf) < 0) 1179 { 1180 fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]); 1181 perror (NULL); 1182 exit (FATAL_EXIT_CODE); 1183 } 1184 inf_size = sbuf.st_size; 1185 inf_buffer = (char *) xmalloc (inf_size + 2); 1186 inf_buffer[inf_size] = '\n'; 1187 inf_buffer[inf_size + 1] = '\0'; 1188 inf_limit = inf_buffer + inf_size; 1189 inf_ptr = inf_buffer; 1190 1191 to_read = inf_size; 1192 while (to_read > 0) 1193 { 1194 long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read); 1195 if (i < 0) 1196 { 1197 fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]); 1198 perror (NULL); 1199 exit (FATAL_EXIT_CODE); 1200 } 1201 if (i == 0) 1202 { 1203 inf_size -= to_read; 1204 break; 1205 } 1206 to_read -= i; 1207 } 1208 1209 close (inf_fd); 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 (ISALPHA (c) || 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 1317void 1318fatal VPROTO ((const char *str, ...)) 1319{ 1320#ifndef ANSI_PROTOTYPES 1321 const char *str; 1322#endif 1323 va_list ap; 1324 1325 VA_START(ap, str); 1326 1327#ifndef ANSI_PROTOTYPES 1328 str = va_arg (ap, const char *); 1329#endif 1330 1331 v_fatal(str, ap); 1332 va_end(ap); 1333} 1334