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e7f9bcdc | 1 | /* fix-header.c - Make C header file suitable for C++. |
3b708058 JL |
2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, |
3 | 1999, 2000 Free Software Foundation, Inc. | |
7936052f PB |
4 | |
5 | This program is free software; you can redistribute it and/or modify it | |
6 | under the terms of the GNU General Public License as published by the | |
7 | Free Software Foundation; either version 2, or (at your option) any | |
8 | later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
1a10ad65 | 17 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
7936052f PB |
18 | |
19 | /* This program massages a system include file (such as stdio.h), | |
9e04c65a | 20 | into a form that is compatible with GNU C and GNU C++. |
7936052f PB |
21 | |
22 | * extern "C" { ... } braces are added (inside #ifndef __cplusplus), | |
05227b51 | 23 | if they seem to be needed. These prevent C++ compilers from name |
7936052f PB |
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 | |
081f5e7e | 30 | the empty parameter list with the argument list from sys-protos.h. |
7936052f PB |
31 | |
32 | * The program can be given a list of (names of) required standard | |
9faa82d8 | 33 | functions (such as fclose for stdio.h). If a required function |
7936052f PB |
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: | |
b3ca463c | 63 | fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS] |
7936052f PB |
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) | |
b3ca463c | 70 | * OPTIONS are such as you would pass to cpp. |
7936052f | 71 | |
0f41302f | 72 | Written by Per Bothner <bothner@cygnus.com>, July 1993. */ |
7936052f | 73 | |
39eda06e | 74 | #include "hconfig.h" |
b04cd507 | 75 | #include "system.h" |
7936052f PB |
76 | #include "obstack.h" |
77 | #include "scan.h" | |
b3ca463c | 78 | #include "cpplib.h" |
0afdf565 | 79 | |
ce1cc601 | 80 | static void v_fatal PARAMS ((const char *, va_list)) ATTRIBUTE_PRINTF (1,0) ATTRIBUTE_NORETURN; |
711d877c | 81 | static void fatal PARAMS ((const char *, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; |
35e93fb4 | 82 | |
b3ca463c | 83 | sstring buf; |
8fb0620c | 84 | |
7936052f PB |
85 | int verbose = 0; |
86 | int partial_count = 0; | |
b3ca463c PB |
87 | int 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 | |
7936052f | 94 | int missing_extern_C_count = 0; |
af86171d | 95 | #endif |
7936052f PB |
96 | |
97 | #include "xsys-protos.h" | |
98 | ||
b3ca463c | 99 | #ifdef FIXPROTO_IGNORE_LIST |
0f41302f | 100 | /* This is a currently unused feature. */ |
b3ca463c PB |
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 | ||
107 | static char *files_to_ignore[] = { | |
108 | "X11/", | |
109 | FIXPROTO_IGNORE_LIST | |
110 | 0 | |
111 | }; | |
112 | #endif | |
113 | ||
05227b51 PB |
114 | char *inf_buffer; |
115 | char *inf_limit; | |
116 | char *inf_ptr; | |
05227b51 | 117 | |
7936052f PB |
118 | /* Certain standard files get extra treatment */ |
119 | ||
120 | enum special_file | |
121 | { | |
122 | no_special, | |
4f1817ee MH |
123 | #ifdef errno_h |
124 | #undef errno_h | |
125 | #endif | |
b3ca463c | 126 | errno_h, |
4f1817ee MH |
127 | #ifdef stdio_h |
128 | #undef stdio_h | |
129 | #endif | |
b3ca463c | 130 | stdio_h, |
4f1817ee MH |
131 | #ifdef stdlib_h |
132 | #undef stdlib_h | |
133 | #endif | |
5a3f1ec3 | 134 | stdlib_h, |
4f1817ee MH |
135 | #ifdef sys_stat_h |
136 | #undef sys_stat_h | |
137 | #endif | |
b3ca463c PB |
138 | sys_stat_h |
139 | }; | |
140 | ||
141 | /* A NAMELIST is a sequence of names, separated by '\0', and terminated | |
0f41302f | 142 | by an empty name (i.e. by "\0\0"). */ |
b3ca463c | 143 | |
0f41302f | 144 | typedef const char *namelist; |
b3ca463c | 145 | |
0f41302f | 146 | /* The following macros provide the bits for symbol_flags. */ |
94442062 PB |
147 | typedef int symbol_flags; |
148 | ||
0f41302f | 149 | /* Used to mark names defined in the ANSI/ISO C standard. */ |
94442062 PB |
150 | #define ANSI_SYMBOL 1 |
151 | ||
9e04c65a KG |
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 | |
0f41302f | 160 | /* Used to mark names defined in the Posix.1 or Posix.2 standard. */ |
94442062 PB |
161 | #define POSIX1_SYMBOL 2 |
162 | #define POSIX2_SYMBOL 4 | |
9e04c65a KG |
163 | #else |
164 | #define POSIX1_SYMBOL 0 | |
165 | #define POSIX2_SYMBOL 0 | |
166 | #endif | |
94442062 | 167 | |
9e04c65a | 168 | #if ADD_MISSING_XOPEN |
0f41302f | 169 | /* Used to mark names defined in X/Open Portability Guide. */ |
5a3f1ec3 | 170 | #define XOPEN_SYMBOL 8 |
0f41302f | 171 | /* Used to mark names defined in X/Open UNIX Extensions. */ |
5a3f1ec3 | 172 | #define XOPEN_EXTENDED_SYMBOL 16 |
9e04c65a KG |
173 | #else |
174 | #define XOPEN_SYMBOL 0 | |
175 | #define XOPEN_EXTENDED_SYMBOL 0 | |
176 | #endif | |
5a3f1ec3 | 177 | |
94442062 | 178 | /* Used to indicate names that are not functions */ |
5a3f1ec3 | 179 | #define MACRO_SYMBOL 512 |
94442062 PB |
180 | |
181 | struct symbol_list { | |
182 | symbol_flags flags; | |
183 | namelist names; | |
b3ca463c PB |
184 | }; |
185 | ||
94442062 PB |
186 | #define SYMBOL_TABLE_SIZE 10 |
187 | struct symbol_list symbol_table[SYMBOL_TABLE_SIZE]; | |
188 | int cur_symbol_table_size; | |
b3ca463c | 189 | |
711d877c KG |
190 | static void add_symbols PARAMS ((symbol_flags, namelist)); |
191 | static struct fn_decl *lookup_std_proto PARAMS ((const char *, int)); | |
192 | static void write_lbrac PARAMS ((void)); | |
193 | static void recognized_macro PARAMS ((const char *)); | |
194 | static void check_macro_names PARAMS ((cpp_reader *, namelist)); | |
195 | static void read_scan_file PARAMS ((char *, int, char **)); | |
196 | static void write_rbrac PARAMS ((void)); | |
197 | static int inf_skip_spaces PARAMS ((int)); | |
198 | static int inf_read_upto PARAMS ((sstring *, int)); | |
199 | static int inf_scan_ident PARAMS ((sstring *, int)); | |
200 | static int check_protection PARAMS ((int *, int *)); | |
bcc5cac9 KG |
201 | |
202 | static void | |
94442062 PB |
203 | add_symbols (flags, names) |
204 | symbol_flags flags; | |
b3ca463c PB |
205 | namelist names; |
206 | { | |
94442062 PB |
207 | symbol_table[cur_symbol_table_size].flags = flags; |
208 | symbol_table[cur_symbol_table_size].names = names; | |
209 | cur_symbol_table_size++; | |
210 | if (cur_symbol_table_size >= SYMBOL_TABLE_SIZE) | |
211 | fatal ("too many calls to add_symbols"); | |
0f41302f | 212 | symbol_table[cur_symbol_table_size].names = NULL; /* Termination. */ |
b3ca463c PB |
213 | } |
214 | ||
94442062 PB |
215 | struct std_include_entry { |
216 | const char *name; | |
217 | symbol_flags flags; | |
218 | namelist names; | |
219 | }; | |
220 | ||
0f41302f | 221 | const char NONE[] = ""; /* The empty namelist. */ |
94442062 | 222 | |
0f41302f | 223 | /* Special name to indicate a continuation line in std_include_table. */ |
94442062 | 224 | const char CONTINUED[] = ""; |
b3ca463c PB |
225 | |
226 | struct std_include_entry *include_entry; | |
227 | ||
228 | struct std_include_entry std_include_table [] = { | |
94442062 | 229 | { "ctype.h", ANSI_SYMBOL, |
b3ca463c | 230 | "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\ |
94442062 | 231 | isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" }, |
b3ca463c | 232 | |
94442062 | 233 | { "dirent.h", POSIX1_SYMBOL, "closedir\0opendir\0readdir\0rewinddir\0"}, |
b3ca463c | 234 | |
94442062 | 235 | { "errno.h", ANSI_SYMBOL|MACRO_SYMBOL, "errno\0" }, |
b3ca463c | 236 | |
0f41302f | 237 | /* ANSI_SYMBOL is wrong, but ... */ |
94442062 | 238 | { "curses.h", ANSI_SYMBOL, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\ |
b3ca463c PB |
239 | mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\ |
240 | scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\ | |
241 | waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\ | |
94442062 | 242 | wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" }, |
b3ca463c | 243 | |
94442062 | 244 | { "fcntl.h", POSIX1_SYMBOL, "creat\0fcntl\0open\0" }, |
b3ca463c PB |
245 | |
246 | /* Maybe also "getgrent fgetgrent setgrent endgrent" */ | |
94442062 | 247 | { "grp.h", POSIX1_SYMBOL, "getgrgid\0getgrnam\0" }, |
b3ca463c PB |
248 | |
249 | /*{ "limit.h", ... provided by gcc }, */ | |
250 | ||
94442062 | 251 | { "locale.h", ANSI_SYMBOL, "localeconv\0setlocale\0" }, |
b3ca463c | 252 | |
94442062 PB |
253 | { "math.h", ANSI_SYMBOL, |
254 | "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\ | |
b3ca463c | 255 | fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\ |
94442062 PB |
256 | tan\0tanh\0" }, |
257 | ||
258 | { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "HUGE_VAL\0" }, | |
b3ca463c | 259 | |
94442062 | 260 | { "pwd.h", POSIX1_SYMBOL, "getpwnam\0getpwuid\0" }, |
b3ca463c | 261 | |
0f41302f | 262 | /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */ |
94442062 | 263 | { "setjmp.h", ANSI_SYMBOL, "longjmp\0setjmp\0" }, |
b3ca463c PB |
264 | |
265 | /* Left out signal() - its prototype is too complex for us! | |
266 | Also left out "sigaction sigaddset sigdelset sigemptyset | |
267 | sigfillset sigismember sigpending sigprocmask sigsuspend" | |
268 | because these need sigset_t or struct sigaction. | |
0f41302f | 269 | Most systems that provide them will also declare them. */ |
94442062 | 270 | { "signal.h", ANSI_SYMBOL, "kill\0raise\0" }, |
b3ca463c | 271 | |
94442062 PB |
272 | { "stdio.h", ANSI_SYMBOL, |
273 | "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\ | |
b3ca463c | 274 | fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\ |
9e04c65a | 275 | fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0perror\0\ |
b3ca463c PB |
276 | printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\ |
277 | setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\ | |
94442062 PB |
278 | tmpnam\0ungetc\0" }, |
279 | { CONTINUED, POSIX1_SYMBOL, "fdopen\0fileno\0" }, | |
0f41302f | 280 | { CONTINUED, POSIX2_SYMBOL, "pclose\0popen\0" }, /* I think ... */ |
b3ca463c PB |
281 | /* Should perhaps also handle NULL, EOF, ... ? */ |
282 | ||
283 | /* "div ldiv", - ignored because these depend on div_t, ldiv_t | |
284 | ignore these: "mblen mbstowcs mbstowc wcstombs wctomb" | |
285 | Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions. | |
286 | Should perhaps also add NULL */ | |
94442062 PB |
287 | { "stdlib.h", ANSI_SYMBOL, |
288 | "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\ | |
b3ca463c | 289 | exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\ |
94442062 | 290 | srand\0strtod\0strtol\0strtoul\0system\0" }, |
5a3f1ec3 | 291 | { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "EXIT_FAILURE\0EXIT_SUCCESS\0" }, |
b3ca463c | 292 | |
94442062 | 293 | { "string.h", ANSI_SYMBOL, "memchr\0memcmp\0memcpy\0memmove\0memset\0\ |
b3ca463c PB |
294 | strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\ |
295 | strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\ | |
94442062 | 296 | strtok\0strxfrm\0" }, |
b3ca463c PB |
297 | /* Should perhaps also add NULL and size_t */ |
298 | ||
5a3f1ec3 PB |
299 | { "strings.h", XOPEN_EXTENDED_SYMBOL, |
300 | "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" }, | |
301 | ||
302 | { "strops.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, | |
303 | ||
304 | /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines | |
305 | ioctl in <strops.h>. However, many systems have it is sys/ioctl.h, | |
0f41302f | 306 | and many systems do have <sys/ioctl.h> but not <strops.h>. */ |
5a3f1ec3 PB |
307 | { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, |
308 | ||
309 | { "sys/socket.h", XOPEN_EXTENDED_SYMBOL, "socket\0" }, | |
310 | ||
94442062 PB |
311 | { "sys/stat.h", POSIX1_SYMBOL, |
312 | "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" }, | |
313 | { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, | |
b3ca463c PB |
314 | "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\ |
315 | S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" }, | |
5a3f1ec3 PB |
316 | { CONTINUED, XOPEN_EXTENDED_SYMBOL, "fchmod\0" }, |
317 | ||
318 | #if 0 | |
319 | /* How do we handle fd_set? */ | |
320 | { "sys/time.h", XOPEN_EXTENDED_SYMBOL, "select\0" }, | |
321 | { "sys/select.h", XOPEN_EXTENDED_SYMBOL /* fake */, "select\0" }, | |
322 | #endif | |
b3ca463c | 323 | |
94442062 | 324 | { "sys/times.h", POSIX1_SYMBOL, "times\0" }, |
b3ca463c PB |
325 | /* "sys/types.h" add types (not in old g++-include) */ |
326 | ||
94442062 | 327 | { "sys/utsname.h", POSIX1_SYMBOL, "uname\0" }, |
b3ca463c | 328 | |
94442062 PB |
329 | { "sys/wait.h", POSIX1_SYMBOL, "wait\0waitpid\0" }, |
330 | { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, | |
b3ca463c PB |
331 | "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\ |
332 | WTERMSIG\0WNOHANG\0WNOTRACED\0" }, | |
333 | ||
94442062 | 334 | { "tar.h", POSIX1_SYMBOL, NONE }, |
b3ca463c | 335 | |
94442062 PB |
336 | { "termios.h", POSIX1_SYMBOL, |
337 | "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" }, | |
b3ca463c | 338 | |
94442062 PB |
339 | { "time.h", ANSI_SYMBOL, |
340 | "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" }, | |
b3ca463c | 341 | |
94442062 PB |
342 | { "unistd.h", POSIX1_SYMBOL, |
343 | "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\ | |
b3ca463c | 344 | dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\ |
94442062 | 345 | getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\ |
b3ca463c PB |
346 | getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\ |
347 | setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\ | |
94442062 PB |
348 | ttyname\0unlink\0write\0" }, |
349 | { CONTINUED, POSIX2_SYMBOL, "getopt\0" }, | |
5a3f1ec3 | 350 | { CONTINUED, XOPEN_EXTENDED_SYMBOL, |
8a2cf1b4 | 351 | "lockf\0gethostid\0gethostname\0readlink\0symlink\0" }, |
5a3f1ec3 PB |
352 | |
353 | { "utime.h", POSIX1_SYMBOL, "utime\0" }, | |
b3ca463c | 354 | |
94442062 | 355 | { NULL, 0, NONE } |
7936052f PB |
356 | }; |
357 | ||
358 | enum special_file special_file_handling = no_special; | |
359 | ||
0f41302f | 360 | /* They are set if the corresponding macro has been seen. */ |
5a3f1ec3 | 361 | /* The following are only used when handling sys/stat.h */ |
7936052f PB |
362 | int seen_S_IFBLK = 0, seen_S_ISBLK = 0; |
363 | int seen_S_IFCHR = 0, seen_S_ISCHR = 0; | |
364 | int seen_S_IFDIR = 0, seen_S_ISDIR = 0; | |
365 | int seen_S_IFIFO = 0, seen_S_ISFIFO = 0; | |
366 | int seen_S_IFLNK = 0, seen_S_ISLNK = 0; | |
367 | int seen_S_IFREG = 0, seen_S_ISREG = 0; | |
5a3f1ec3 PB |
368 | /* The following are only used when handling errno.h */ |
369 | int seen_errno = 0; | |
370 | /* The following are only used when handling stdlib.h */ | |
371 | int seen_EXIT_FAILURE = 0, seen_EXIT_SUCCESS = 0; | |
10b8b0ba | 372 | \f |
7936052f | 373 | #define obstack_chunk_alloc xmalloc |
bcc5cac9 | 374 | #define obstack_chunk_free free |
7936052f PB |
375 | struct obstack scan_file_obstack; |
376 | ||
377 | /* NOTE: If you edit this, also edit gen-protos.c !! */ | |
0f41302f | 378 | |
bcc5cac9 | 379 | static struct fn_decl * |
b3ca463c PB |
380 | lookup_std_proto (name, name_length) |
381 | const char *name; | |
382 | int name_length; | |
7936052f | 383 | { |
5fa7f88c | 384 | int i = hashstr (name, name_length) % HASH_SIZE; |
7936052f PB |
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]]; | |
79c9824e | 392 | if ((int) strlen (fn->fname) == name_length |
b3ca463c | 393 | && strncmp (fn->fname, name, name_length) == 0) |
7936052f PB |
394 | return fn; |
395 | i = (i+1) % HASH_SIZE; | |
396 | if (i == i0) | |
c2b6b9a1 | 397 | abort (); |
7936052f PB |
398 | } |
399 | } | |
400 | ||
401 | char *inc_filename; | |
402 | int inc_filename_length; | |
bcc5cac9 | 403 | const char *progname = "fix-header"; |
7936052f | 404 | FILE *outf; |
7936052f PB |
405 | sstring line; |
406 | ||
407 | int lbrac_line, rbrac_line; | |
408 | ||
b3ca463c | 409 | int required_unseen_count = 0; |
5a3f1ec3 | 410 | int required_other = 0; |
7936052f | 411 | |
bcc5cac9 | 412 | static void |
7936052f PB |
413 | write_lbrac () |
414 | { | |
b156894e | 415 | |
b3ca463c | 416 | #if ADD_MISSING_EXTERN_C |
b156894e RS |
417 | if (missing_extern_C_count + required_unseen_count > 0) |
418 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); | |
af86171d | 419 | #endif |
7936052f PB |
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 | ||
432 | struct partial_proto | |
433 | { | |
434 | struct partial_proto *next; | |
7936052f PB |
435 | struct fn_decl *fn; |
436 | int line_seen; | |
437 | }; | |
438 | ||
439 | struct partial_proto *partial_proto_list = NULL; | |
440 | ||
b3ca463c | 441 | struct partial_proto required_dummy_proto, seen_dummy_proto; |
7936052f PB |
442 | #define REQUIRED(FN) ((FN)->partial == &required_dummy_proto) |
443 | #define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto) | |
b3ca463c PB |
444 | #define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto) |
445 | #define SEEN(FN) ((FN)->partial == &seen_dummy_proto) | |
7936052f | 446 | |
bcc5cac9 | 447 | static void |
05227b51 | 448 | recognized_macro (fname) |
bcc5cac9 | 449 | const char *fname; |
7936052f | 450 | { |
0f41302f | 451 | /* The original include file defines fname as a macro. */ |
b3ca463c | 452 | struct fn_decl *fn = lookup_std_proto (fname, strlen (fname)); |
7936052f | 453 | |
0f41302f | 454 | /* Since fname is a macro, don't require a prototype for it. */ |
b3ca463c | 455 | if (fn) |
7936052f | 456 | { |
b3ca463c PB |
457 | if (REQUIRED (fn)) |
458 | required_unseen_count--; | |
459 | SET_SEEN (fn); | |
05227b51 | 460 | } |
7936052f | 461 | |
05227b51 PB |
462 | switch (special_file_handling) |
463 | { | |
b3ca463c | 464 | case errno_h: |
5a3f1ec3 PB |
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--; | |
05227b51 | 473 | break; |
b3ca463c | 474 | case sys_stat_h: |
05227b51 | 475 | if (fname[0] == 'S' && fname[1] == '_') |
7936052f | 476 | { |
05227b51 PB |
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++; | |
7936052f | 489 | } |
9e04c65a KG |
490 | break; |
491 | ||
492 | default: | |
493 | break; | |
05227b51 PB |
494 | } |
495 | } | |
7936052f | 496 | |
05227b51 | 497 | void |
041c3194 ZW |
498 | recognized_extern (name) |
499 | const cpp_token *name; | |
05227b51 PB |
500 | { |
501 | switch (special_file_handling) | |
502 | { | |
b3ca463c | 503 | case errno_h: |
bfb9dc7f | 504 | if (cpp_ideq (name, "errno")) |
5a3f1ec3 | 505 | seen_errno = 1, required_other--; |
05227b51 | 506 | break; |
9e04c65a KG |
507 | |
508 | default: | |
509 | break; | |
05227b51 PB |
510 | } |
511 | } | |
7936052f | 512 | |
05227b51 | 513 | /* Called by scan_decls if it saw a function definition for a function |
041c3194 ZW |
514 | named FNAME, in source file FILE_SEEN on line LINE_SEEN. KIND is |
515 | 'I' for an inline function; 'F' if a normal function declaration | |
516 | preceded by 'extern "C"' (or nested inside 'extern "C"' braces); or | |
0f41302f | 517 | 'f' for other function declarations. */ |
7936052f | 518 | |
05227b51 | 519 | void |
93c80368 | 520 | recognized_function (fname, line, kind, have_arg_list, file_seen) |
041c3194 | 521 | const cpp_token *fname; |
93c80368 | 522 | unsigned int line; |
05227b51 | 523 | int kind; /* One of 'f' 'F' or 'I' */ |
b3ca463c | 524 | int have_arg_list; |
4b66e1c0 | 525 | const char *file_seen; |
05227b51 PB |
526 | { |
527 | struct partial_proto *partial; | |
528 | int i; | |
529 | struct fn_decl *fn; | |
b3ca463c | 530 | #if ADD_MISSING_EXTERN_C |
05227b51 PB |
531 | if (kind == 'f') |
532 | missing_extern_C_count++; | |
af86171d | 533 | #endif |
7936052f | 534 | |
bfb9dc7f ZW |
535 | fn = lookup_std_proto ((const char *)fname->val.node->name, |
536 | fname->val.node->length); | |
7936052f | 537 | |
0f41302f | 538 | /* Remove the function from the list of required function. */ |
b3ca463c | 539 | if (fn) |
05227b51 | 540 | { |
b3ca463c PB |
541 | if (REQUIRED (fn)) |
542 | required_unseen_count--; | |
543 | SET_SEEN (fn); | |
05227b51 | 544 | } |
e9cd0b25 | 545 | |
0f41302f | 546 | /* If we have a full prototype, we're done. */ |
b3ca463c | 547 | if (have_arg_list) |
05227b51 PB |
548 | return; |
549 | ||
550 | if (kind == 'I') /* don't edit inline function */ | |
551 | return; | |
552 | ||
553 | /* If the partial prototype was included from some other file, | |
0f41302f | 554 | we don't need to patch it up (in this run). */ |
05227b51 PB |
555 | i = strlen (file_seen); |
556 | if (i < inc_filename_length | |
557 | || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0) | |
558 | return; | |
559 | ||
560 | if (fn == NULL) | |
561 | return; | |
ad3ffa44 | 562 | if (fn->params[0] == '\0') |
05227b51 PB |
563 | return; |
564 | ||
565 | /* We only have a partial function declaration, | |
0f41302f | 566 | so remember that we have to add a complete prototype. */ |
05227b51 | 567 | partial_count++; |
0f41302f | 568 | partial = (struct partial_proto *) |
c2b6b9a1 | 569 | obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto)); |
93c80368 | 570 | partial->line_seen = line; |
05227b51 PB |
571 | partial->fn = fn; |
572 | fn->partial = partial; | |
573 | partial->next = partial_proto_list; | |
574 | partial_proto_list = partial; | |
575 | if (verbose) | |
576 | { | |
577 | fprintf (stderr, "(%s: %s non-prototype function declaration.)\n", | |
041c3194 | 578 | inc_filename, fn->fname); |
b3ca463c PB |
579 | } |
580 | } | |
581 | ||
582 | /* For any name in NAMES that is defined as a macro, | |
0f41302f | 583 | call recognized_macro on it. */ |
b3ca463c | 584 | |
bcc5cac9 | 585 | static void |
b3ca463c | 586 | check_macro_names (pfile, names) |
c57a4b7c | 587 | cpp_reader *pfile; |
b3ca463c PB |
588 | namelist names; |
589 | { | |
6d2c2047 | 590 | size_t len; |
b3ca463c PB |
591 | while (*names) |
592 | { | |
6d2c2047 | 593 | len = strlen (names); |
e605b040 | 594 | if (cpp_defined (pfile, (const unsigned char *)names, len)) |
b3ca463c | 595 | recognized_macro (names); |
6d2c2047 | 596 | names += len + 1; |
05227b51 PB |
597 | } |
598 | } | |
7936052f | 599 | |
bcc5cac9 | 600 | static void |
b3ca463c PB |
601 | read_scan_file (in_fname, argc, argv) |
602 | char *in_fname; | |
603 | int argc; | |
604 | char **argv; | |
05227b51 | 605 | { |
b3ca463c | 606 | cpp_reader scan_in; |
b3ca463c PB |
607 | struct fn_decl *fn; |
608 | int i; | |
94442062 | 609 | register struct symbol_list *cur_symbols; |
b3ca463c | 610 | |
c2b6b9a1 | 611 | obstack_init (&scan_file_obstack); |
7936052f | 612 | |
1293daae | 613 | cpp_init (); /* Initialize cpplib. */ |
dd07b884 | 614 | cpp_reader_init (&scan_in, CLK_GNUC89); |
1293daae | 615 | |
cf4ed945 ZW |
616 | /* We are going to be scanning a header file out of its proper context, |
617 | so ignore warnings and errors. */ | |
ae79697b ZW |
618 | CPP_OPTION (&scan_in, inhibit_warnings) = 1; |
619 | CPP_OPTION (&scan_in, inhibit_errors) = 1; | |
b3ca463c | 620 | i = cpp_handle_options (&scan_in, argc, argv); |
35e93fb4 | 621 | if (i < argc && ! CPP_FATAL_ERRORS (&scan_in)) |
c57a4b7c | 622 | cpp_fatal (&scan_in, "Invalid option `%s'", argv[i]); |
35e93fb4 | 623 | if (CPP_FATAL_ERRORS (&scan_in)) |
c57a4b7c PB |
624 | exit (FATAL_EXIT_CODE); |
625 | ||
93c80368 | 626 | if (! cpp_start_read (&scan_in, in_fname)) |
c57a4b7c | 627 | exit (FATAL_EXIT_CODE); |
b3ca463c | 628 | |
6d2c2047 | 629 | /* We are scanning a system header, so mark it as such. */ |
e605b040 | 630 | cpp_make_system_header (&scan_in, CPP_BUFFER (&scan_in), 1); |
6d2c2047 | 631 | |
b3ca463c | 632 | scan_decls (&scan_in, argc, argv); |
94442062 PB |
633 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
634 | check_macro_names (&scan_in, cur_symbols->names); | |
b3ca463c | 635 | |
b3ca463c | 636 | /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf. |
0f41302f | 637 | If so, those functions are also required. */ |
b3ca463c PB |
638 | if (special_file_handling == stdio_h |
639 | && (fn = lookup_std_proto ("_filbuf", 7)) != NULL) | |
640 | { | |
e605b040 | 641 | static const unsigned char getchar_call[] = "getchar();"; |
b3ca463c | 642 | int seen_filbuf = 0; |
c56c2073 ZW |
643 | cpp_buffer *buf = CPP_BUFFER (&scan_in); |
644 | if (cpp_push_buffer (&scan_in, getchar_call, | |
645 | sizeof(getchar_call) - 1) == NULL) | |
646 | return; | |
b3ca463c | 647 | |
0f41302f | 648 | /* Scan the macro expansion of "getchar();". */ |
b3ca463c PB |
649 | for (;;) |
650 | { | |
93c80368 | 651 | cpp_token t; |
041c3194 | 652 | |
93c80368 NB |
653 | cpp_get_token (&scan_in, &t); |
654 | if (t.type == CPP_EOF) | |
041c3194 ZW |
655 | { |
656 | cpp_pop_buffer (&scan_in); | |
657 | if (CPP_BUFFER (&scan_in) == buf) | |
658 | break; | |
659 | } | |
93c80368 | 660 | else if (cpp_ideq (&t, "_filbuf")) |
b3ca463c PB |
661 | seen_filbuf++; |
662 | } | |
663 | if (seen_filbuf) | |
664 | { | |
665 | int need_filbuf = !SEEN (fn) && !REQUIRED (fn); | |
666 | struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7); | |
667 | int need_flsbuf | |
668 | = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn); | |
669 | ||
0f41302f | 670 | /* Append "_filbuf" and/or "_flsbuf" to the required functions. */ |
b3ca463c PB |
671 | if (need_filbuf + need_flsbuf) |
672 | { | |
9b3142b3 | 673 | const char *new_list; |
b3ca463c | 674 | if (need_filbuf) |
94442062 | 675 | SET_REQUIRED (fn); |
b3ca463c | 676 | if (need_flsbuf) |
94442062 | 677 | SET_REQUIRED (flsbuf_fn); |
6d2c2047 | 678 | if (need_flsbuf && need_filbuf) |
94442062 PB |
679 | new_list = "_filbuf\0_flsbuf\0"; |
680 | else if (need_flsbuf) | |
681 | new_list = "_flsbuf\0"; | |
682 | else /* if (need_flsbuf) */ | |
683 | new_list = "_filbuf\0"; | |
684 | add_symbols (ANSI_SYMBOL, new_list); | |
b3ca463c PB |
685 | required_unseen_count += need_filbuf + need_flsbuf; |
686 | } | |
687 | } | |
688 | } | |
7936052f | 689 | |
5a3f1ec3 | 690 | if (required_unseen_count + partial_count + required_other |
b3ca463c | 691 | #if ADD_MISSING_EXTERN_C |
af86171d JW |
692 | + missing_extern_C_count |
693 | #endif | |
694 | == 0) | |
7936052f PB |
695 | { |
696 | if (verbose) | |
697 | fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename); | |
2e3f9f3d | 698 | exit (SUCCESS_EXIT_CODE); |
7936052f | 699 | } |
e9cd0b25 PB |
700 | if (!verbose) |
701 | fprintf (stderr, "%s: fixing %s\n", progname, inc_filename); | |
702 | else | |
703 | { | |
704 | if (required_unseen_count) | |
705 | fprintf (stderr, "%s: %d missing function declarations.\n", | |
706 | inc_filename, required_unseen_count); | |
707 | if (partial_count) | |
708 | fprintf (stderr, "%s: %d non-prototype function declarations.\n", | |
709 | inc_filename, partial_count); | |
b3ca463c | 710 | #if ADD_MISSING_EXTERN_C |
e9cd0b25 PB |
711 | if (missing_extern_C_count) |
712 | fprintf (stderr, | |
713 | "%s: %d declarations not protected by extern \"C\".\n", | |
714 | inc_filename, missing_extern_C_count); | |
af86171d | 715 | #endif |
e9cd0b25 | 716 | } |
7936052f PB |
717 | } |
718 | ||
bcc5cac9 | 719 | static void |
7936052f PB |
720 | write_rbrac () |
721 | { | |
722 | struct fn_decl *fn; | |
b3ca463c | 723 | const char *cptr; |
94442062 | 724 | register struct symbol_list *cur_symbols; |
7936052f PB |
725 | |
726 | if (required_unseen_count) | |
b4e21e27 | 727 | { |
b4e21e27 | 728 | #ifdef NO_IMPLICIT_EXTERN_C |
55e2b88e | 729 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); |
b4e21e27 PB |
730 | #endif |
731 | } | |
7936052f | 732 | |
0f41302f | 733 | /* Now we print out prototypes for those functions that we haven't seen. */ |
94442062 | 734 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
7936052f | 735 | { |
94442062 PB |
736 | int if_was_emitted = 0; |
737 | int name_len; | |
738 | cptr = cur_symbols->names; | |
739 | for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) | |
740 | { | |
741 | int macro_protect = 0; | |
10b8b0ba | 742 | |
94442062 PB |
743 | if (cur_symbols->flags & MACRO_SYMBOL) |
744 | continue; | |
745 | ||
746 | fn = lookup_std_proto (cptr, name_len); | |
747 | if (fn == NULL || !REQUIRED (fn)) | |
748 | continue; | |
749 | ||
750 | if (!if_was_emitted) | |
751 | { | |
752 | /* what about curses. ??? or _flsbuf/_filbuf ??? */ | |
753 | if (cur_symbols->flags & ANSI_SYMBOL) | |
754 | fprintf (outf, | |
755 | "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n"); | |
5a3f1ec3 | 756 | else if (cur_symbols->flags & (POSIX1_SYMBOL|POSIX2_SYMBOL)) |
94442062 PB |
757 | fprintf (outf, |
758 | "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\ | |
5a3f1ec3 PB |
759 | ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\ |
760 | : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n"); | |
761 | else if (cur_symbols->flags & XOPEN_SYMBOL) | |
762 | { | |
763 | fprintf (outf, | |
764 | "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ | |
765 | || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n"); | |
766 | } | |
767 | else if (cur_symbols->flags & XOPEN_EXTENDED_SYMBOL) | |
768 | { | |
769 | fprintf (outf, | |
770 | "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ | |
771 | || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n"); | |
772 | } | |
773 | else | |
774 | { | |
775 | fatal ("internal error for function %s", fn->fname); | |
776 | } | |
94442062 PB |
777 | if_was_emitted = 1; |
778 | } | |
10b8b0ba | 779 | |
94442062 PB |
780 | /* In the case of memmove, protect in case the application |
781 | defines it as a macro before including the header. */ | |
782 | if (!strcmp (fn->fname, "memmove") | |
1b4f90cd FF |
783 | || !strcmp (fn->fname, "putc") |
784 | || !strcmp (fn->fname, "getc") | |
94442062 PB |
785 | || !strcmp (fn->fname, "vprintf") |
786 | || !strcmp (fn->fname, "vfprintf") | |
787 | || !strcmp (fn->fname, "vsprintf") | |
25cf40e2 MH |
788 | || !strcmp (fn->fname, "rewinddir") |
789 | || !strcmp (fn->fname, "abort")) | |
94442062 PB |
790 | macro_protect = 1; |
791 | ||
792 | if (macro_protect) | |
793 | fprintf (outf, "#ifndef %s\n", fn->fname); | |
794 | fprintf (outf, "extern %s %s (%s);\n", | |
795 | fn->rtype, fn->fname, fn->params); | |
796 | if (macro_protect) | |
797 | fprintf (outf, "#endif\n"); | |
798 | } | |
799 | if (if_was_emitted) | |
800 | fprintf (outf, | |
801 | "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n"); | |
7936052f PB |
802 | } |
803 | if (required_unseen_count) | |
b4e21e27 PB |
804 | { |
805 | #ifdef NO_IMPLICIT_EXTERN_C | |
55e2b88e | 806 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); |
b4e21e27 | 807 | #endif |
b4e21e27 | 808 | } |
7936052f PB |
809 | |
810 | switch (special_file_handling) | |
811 | { | |
b3ca463c | 812 | case errno_h: |
5a3f1ec3 | 813 | if (!seen_errno) |
7936052f PB |
814 | fprintf (outf, "extern int errno;\n"); |
815 | break; | |
5a3f1ec3 PB |
816 | case stdlib_h: |
817 | if (!seen_EXIT_FAILURE) | |
818 | fprintf (outf, "#define EXIT_FAILURE 1\n"); | |
819 | if (!seen_EXIT_SUCCESS) | |
820 | fprintf (outf, "#define EXIT_SUCCESS 0\n"); | |
821 | break; | |
b3ca463c | 822 | case sys_stat_h: |
7936052f PB |
823 | if (!seen_S_ISBLK && seen_S_IFBLK) |
824 | fprintf (outf, | |
825 | "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n"); | |
826 | if (!seen_S_ISCHR && seen_S_IFCHR) | |
827 | fprintf (outf, | |
828 | "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n"); | |
829 | if (!seen_S_ISDIR && seen_S_IFDIR) | |
830 | fprintf (outf, | |
831 | "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n"); | |
832 | if (!seen_S_ISFIFO && seen_S_IFIFO) | |
833 | fprintf (outf, | |
834 | "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n"); | |
835 | if (!seen_S_ISLNK && seen_S_IFLNK) | |
836 | fprintf (outf, | |
837 | "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n"); | |
838 | if (!seen_S_ISREG && seen_S_IFREG) | |
839 | fprintf (outf, | |
840 | "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n"); | |
841 | break; | |
9e04c65a KG |
842 | |
843 | default: | |
844 | break; | |
7936052f PB |
845 | } |
846 | ||
847 | ||
b3ca463c | 848 | #if ADD_MISSING_EXTERN_C |
b156894e RS |
849 | if (missing_extern_C_count + required_unseen_count > 0) |
850 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); | |
af86171d | 851 | #endif |
7936052f PB |
852 | } |
853 | ||
7936052f PB |
854 | /* Returns 1 iff the file is properly protected from multiple inclusion: |
855 | #ifndef PROTECT_NAME | |
856 | #define PROTECT_NAME | |
857 | #endif | |
858 | ||
859 | */ | |
860 | ||
0f41302f | 861 | #define INF_GET() (inf_ptr < inf_limit ? *(unsigned char *) inf_ptr++ : EOF) |
c2b6b9a1 | 862 | #define INF_UNGET(c) ((c)!=EOF && inf_ptr--) |
05227b51 | 863 | |
bcc5cac9 | 864 | static int |
05227b51 PB |
865 | inf_skip_spaces (c) |
866 | int c; | |
867 | { | |
868 | for (;;) | |
869 | { | |
870 | if (c == ' ' || c == '\t') | |
c2b6b9a1 | 871 | c = INF_GET (); |
05227b51 PB |
872 | else if (c == '/') |
873 | { | |
c2b6b9a1 | 874 | c = INF_GET (); |
05227b51 PB |
875 | if (c != '*') |
876 | { | |
081f5e7e | 877 | (void) INF_UNGET (c); |
05227b51 PB |
878 | return '/'; |
879 | } | |
c2b6b9a1 | 880 | c = INF_GET (); |
05227b51 PB |
881 | for (;;) |
882 | { | |
883 | if (c == EOF) | |
884 | return EOF; | |
885 | else if (c != '*') | |
886 | { | |
887 | if (c == '\n') | |
888 | source_lineno++, lineno++; | |
889 | c = INF_GET (); | |
890 | } | |
c2b6b9a1 RS |
891 | else if ((c = INF_GET ()) == '/') |
892 | return INF_GET (); | |
05227b51 PB |
893 | } |
894 | } | |
895 | else | |
896 | break; | |
897 | } | |
898 | return c; | |
899 | } | |
900 | ||
0f41302f | 901 | /* Read into STR from inf_buffer upto DELIM. */ |
05227b51 | 902 | |
bcc5cac9 | 903 | static int |
05227b51 PB |
904 | inf_read_upto (str, delim) |
905 | sstring *str; | |
906 | int delim; | |
907 | { | |
908 | int ch; | |
909 | for (;;) | |
910 | { | |
911 | ch = INF_GET (); | |
912 | if (ch == EOF || ch == delim) | |
913 | break; | |
c2b6b9a1 | 914 | SSTRING_PUT (str, ch); |
05227b51 | 915 | } |
c2b6b9a1 | 916 | MAKE_SSTRING_SPACE (str, 1); |
05227b51 PB |
917 | *str->ptr = 0; |
918 | return ch; | |
919 | } | |
920 | ||
bcc5cac9 | 921 | static int |
05227b51 PB |
922 | inf_scan_ident (s, c) |
923 | register sstring *s; | |
924 | int c; | |
925 | { | |
926 | s->ptr = s->base; | |
e9a780ec | 927 | if (ISALPHA (c) || c == '_') |
05227b51 PB |
928 | { |
929 | for (;;) | |
930 | { | |
c2b6b9a1 | 931 | SSTRING_PUT (s, c); |
05227b51 | 932 | c = INF_GET (); |
e9a780ec | 933 | if (c == EOF || !(ISALNUM (c) || c == '_')) |
05227b51 PB |
934 | break; |
935 | } | |
936 | } | |
c2b6b9a1 | 937 | MAKE_SSTRING_SPACE (s, 1); |
05227b51 PB |
938 | *s->ptr = 0; |
939 | return c; | |
940 | } | |
941 | ||
942 | /* Returns 1 if the file is correctly protected against multiple | |
943 | inclusion, setting *ifndef_line to the line number of the initial #ifndef | |
944 | and setting *endif_line to the final #endif. | |
0f41302f | 945 | Otherwise return 0. */ |
05227b51 | 946 | |
bcc5cac9 | 947 | static int |
05227b51 | 948 | check_protection (ifndef_line, endif_line) |
7936052f PB |
949 | int *ifndef_line, *endif_line; |
950 | { | |
951 | int c; | |
952 | int if_nesting = 1; /* Level of nesting of #if's */ | |
953 | char *protect_name = NULL; /* Identifier following initial #ifndef */ | |
954 | int define_seen = 0; | |
955 | ||
0f41302f | 956 | /* Skip initial white space (including comments). */ |
7936052f PB |
957 | for (;; lineno++) |
958 | { | |
05227b51 | 959 | c = inf_skip_spaces (' '); |
7936052f PB |
960 | if (c == EOF) |
961 | return 0; | |
962 | if (c != '\n') | |
963 | break; | |
964 | } | |
965 | if (c != '#') | |
966 | return 0; | |
05227b51 | 967 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
c2b6b9a1 | 968 | if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0) |
7936052f PB |
969 | return 0; |
970 | ||
0f41302f | 971 | /* So far so good: We've seen an initial #ifndef. */ |
7936052f | 972 | *ifndef_line = lineno; |
05227b51 | 973 | c = inf_scan_ident (&buf, inf_skip_spaces (c)); |
c2b6b9a1 | 974 | if (SSTRING_LENGTH (&buf) == 0 || c == EOF) |
7936052f | 975 | return 0; |
1bc61c04 | 976 | protect_name = xstrdup (buf.base); |
7936052f | 977 | |
081f5e7e | 978 | (void) INF_UNGET (c); |
05227b51 | 979 | c = inf_read_upto (&buf, '\n'); |
7936052f PB |
980 | if (c == EOF) |
981 | return 0; | |
982 | lineno++; | |
983 | ||
984 | for (;;) | |
985 | { | |
c2b6b9a1 | 986 | c = inf_skip_spaces (' '); |
7936052f PB |
987 | if (c == EOF) |
988 | return 0; | |
989 | if (c == '\n') | |
990 | { | |
991 | lineno++; | |
992 | continue; | |
993 | } | |
994 | if (c != '#') | |
995 | goto skip_to_eol; | |
05227b51 | 996 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
c2b6b9a1 | 997 | if (SSTRING_LENGTH (&buf) == 0) |
7936052f PB |
998 | ; |
999 | else if (!strcmp (buf.base, "ifndef") | |
1000 | || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if")) | |
1001 | { | |
1002 | if_nesting++; | |
1003 | } | |
1004 | else if (!strcmp (buf.base, "endif")) | |
1005 | { | |
1006 | if_nesting--; | |
1007 | if (if_nesting == 0) | |
1008 | break; | |
1009 | } | |
1010 | else if (!strcmp (buf.base, "else")) | |
1011 | { | |
1012 | if (if_nesting == 1) | |
1013 | return 0; | |
1014 | } | |
1015 | else if (!strcmp (buf.base, "define")) | |
1016 | { | |
05227b51 PB |
1017 | c = inf_skip_spaces (c); |
1018 | c = inf_scan_ident (&buf, c); | |
c2b6b9a1 | 1019 | if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0) |
7936052f PB |
1020 | define_seen = 1; |
1021 | } | |
1022 | skip_to_eol: | |
1023 | for (;;) | |
1024 | { | |
1025 | if (c == '\n' || c == EOF) | |
1026 | break; | |
c2b6b9a1 | 1027 | c = INF_GET (); |
7936052f PB |
1028 | } |
1029 | if (c == EOF) | |
1030 | return 0; | |
1031 | lineno++; | |
1032 | } | |
1033 | ||
1034 | if (!define_seen) | |
1035 | return 0; | |
1036 | *endif_line = lineno; | |
0f41302f | 1037 | /* Skip final white space (including comments). */ |
7936052f PB |
1038 | for (;;) |
1039 | { | |
05227b51 | 1040 | c = inf_skip_spaces (' '); |
7936052f PB |
1041 | if (c == EOF) |
1042 | break; | |
1043 | if (c != '\n') | |
1044 | return 0; | |
1045 | } | |
1046 | ||
1047 | return 1; | |
1048 | } | |
1049 | ||
711d877c | 1050 | extern int main PARAMS ((int, char **)); |
bcc5cac9 | 1051 | |
7936052f | 1052 | int |
c2b6b9a1 | 1053 | main (argc, argv) |
7936052f PB |
1054 | int argc; |
1055 | char **argv; | |
1056 | { | |
05227b51 PB |
1057 | int inf_fd; |
1058 | struct stat sbuf; | |
7936052f | 1059 | int c; |
9870475c JL |
1060 | #ifdef FIXPROTO_IGNORE_LIST |
1061 | int i; | |
1062 | #endif | |
1063 | const char *cptr; | |
7936052f | 1064 | int ifndef_line; |
05227b51 PB |
1065 | int endif_line; |
1066 | long to_read; | |
c2b6b9a1 | 1067 | long int inf_size; |
94442062 | 1068 | register struct symbol_list *cur_symbols; |
7936052f PB |
1069 | |
1070 | if (argv[0] && argv[0][0]) | |
9bbd1091 RS |
1071 | { |
1072 | register char *p; | |
1073 | ||
1074 | progname = 0; | |
1075 | for (p = argv[0]; *p; p++) | |
1076 | if (*p == '/') | |
1077 | progname = p; | |
1078 | progname = progname ? progname+1 : argv[0]; | |
1079 | } | |
7936052f PB |
1080 | |
1081 | if (argc < 4) | |
1082 | { | |
b3ca463c | 1083 | fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n", |
7936052f | 1084 | progname); |
2e3f9f3d | 1085 | exit (FATAL_EXIT_CODE); |
7936052f PB |
1086 | } |
1087 | ||
1088 | inc_filename = argv[1]; | |
1089 | inc_filename_length = strlen (inc_filename); | |
b3ca463c PB |
1090 | |
1091 | #ifdef FIXPROTO_IGNORE_LIST | |
1092 | for (i = 0; files_to_ignore[i] != NULL; i++) | |
1093 | { | |
1094 | char *ignore_name = files_to_ignore[i]; | |
1095 | int ignore_len = strlen (ignore_name); | |
1096 | if (strncmp (inc_filename, ignore_name, ignore_len) == 0) | |
1097 | { | |
1098 | if (ignore_name[ignore_len-1] == '/' | |
1099 | || inc_filename[ignore_len] == '\0') | |
1100 | { | |
1101 | if (verbose) | |
1102 | fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename); | |
2e3f9f3d | 1103 | exit (SUCCESS_EXIT_CODE); |
b3ca463c PB |
1104 | } |
1105 | } | |
1106 | ||
1107 | } | |
1108 | #endif | |
1109 | ||
7936052f | 1110 | if (strcmp (inc_filename, "sys/stat.h") == 0) |
b3ca463c | 1111 | special_file_handling = sys_stat_h; |
7936052f | 1112 | else if (strcmp (inc_filename, "errno.h") == 0) |
5a3f1ec3 PB |
1113 | special_file_handling = errno_h, required_other++; |
1114 | else if (strcmp (inc_filename, "stdlib.h") == 0) | |
1115 | special_file_handling = stdlib_h, required_other+=2; | |
b3ca463c PB |
1116 | else if (strcmp (inc_filename, "stdio.h") == 0) |
1117 | special_file_handling = stdio_h; | |
1118 | include_entry = std_include_table; | |
1119 | while (include_entry->name != NULL | |
93b9cce7 | 1120 | && ((strcmp (include_entry->name, CONTINUED) == 0) |
94442062 | 1121 | || strcmp (inc_filename, include_entry->name) != 0)) |
b3ca463c PB |
1122 | include_entry++; |
1123 | ||
94442062 PB |
1124 | if (include_entry->name != NULL) |
1125 | { | |
1126 | struct std_include_entry *entry; | |
1127 | cur_symbol_table_size = 0; | |
1128 | for (entry = include_entry; ;) | |
1129 | { | |
9e04c65a KG |
1130 | if (entry->flags) |
1131 | add_symbols (entry->flags, entry->names); | |
94442062 | 1132 | entry++; |
ceb45eb8 | 1133 | if (!entry->name || strcmp (entry->name, CONTINUED) != 0) |
94442062 PB |
1134 | break; |
1135 | } | |
1136 | } | |
1137 | else | |
1138 | symbol_table[0].names = NULL; | |
b3ca463c | 1139 | |
0f41302f | 1140 | /* Count and mark the prototypes required for this include file. */ |
94442062 | 1141 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
7936052f | 1142 | { |
94442062 PB |
1143 | int name_len; |
1144 | if (cur_symbols->flags & MACRO_SYMBOL) | |
1145 | continue; | |
1146 | cptr = cur_symbols->names; | |
1147 | for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) | |
1148 | { | |
1149 | struct fn_decl *fn = lookup_std_proto (cptr, name_len); | |
1150 | required_unseen_count++; | |
1151 | if (fn == NULL) | |
1152 | fprintf (stderr, "Internal error: No prototype for %s\n", cptr); | |
1153 | else | |
1154 | SET_REQUIRED (fn); | |
1155 | } | |
7936052f | 1156 | } |
7936052f | 1157 | |
b3ca463c | 1158 | read_scan_file (argv[2], argc - 4, argv + 4); |
7936052f | 1159 | |
05227b51 PB |
1160 | inf_fd = open (argv[2], O_RDONLY, 0666); |
1161 | if (inf_fd < 0) | |
7936052f PB |
1162 | { |
1163 | fprintf (stderr, "%s: Cannot open '%s' for reading -", | |
1164 | progname, argv[2]); | |
1165 | perror (NULL); | |
2e3f9f3d | 1166 | exit (FATAL_EXIT_CODE); |
7936052f | 1167 | } |
05227b51 PB |
1168 | if (fstat (inf_fd, &sbuf) < 0) |
1169 | { | |
1170 | fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]); | |
1171 | perror (NULL); | |
2e3f9f3d | 1172 | exit (FATAL_EXIT_CODE); |
05227b51 PB |
1173 | } |
1174 | inf_size = sbuf.st_size; | |
0f41302f | 1175 | inf_buffer = (char *) xmalloc (inf_size + 2); |
05227b51 PB |
1176 | inf_buffer[inf_size] = '\n'; |
1177 | inf_buffer[inf_size + 1] = '\0'; | |
1178 | inf_limit = inf_buffer + inf_size; | |
1179 | inf_ptr = inf_buffer; | |
1180 | ||
1181 | to_read = inf_size; | |
1182 | while (to_read > 0) | |
1183 | { | |
1184 | long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read); | |
1185 | if (i < 0) | |
1186 | { | |
1187 | fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]); | |
1188 | perror (NULL); | |
2e3f9f3d | 1189 | exit (FATAL_EXIT_CODE); |
05227b51 PB |
1190 | } |
1191 | if (i == 0) | |
1192 | { | |
1193 | inf_size -= to_read; | |
1194 | break; | |
1195 | } | |
1196 | to_read -= i; | |
1197 | } | |
1198 | ||
1199 | close (inf_fd); | |
7936052f | 1200 | |
0f41302f | 1201 | /* If file doesn't end with '\n', add one. */ |
c2b6b9a1 RS |
1202 | if (inf_limit > inf_buffer && inf_limit[-1] != '\n') |
1203 | inf_limit++; | |
1204 | ||
9bbd1091 | 1205 | unlink (argv[3]); |
7936052f PB |
1206 | outf = fopen (argv[3], "w"); |
1207 | if (outf == NULL) | |
1208 | { | |
1209 | fprintf (stderr, "%s: Cannot open '%s' for writing -", | |
1210 | progname, argv[3]); | |
1211 | perror (NULL); | |
2e3f9f3d | 1212 | exit (FATAL_EXIT_CODE); |
7936052f PB |
1213 | } |
1214 | ||
05227b51 PB |
1215 | lineno = 1; |
1216 | ||
1217 | if (check_protection (&ifndef_line, &endif_line)) | |
7936052f | 1218 | { |
7936052f PB |
1219 | lbrac_line = ifndef_line+1; |
1220 | rbrac_line = endif_line; | |
1221 | } | |
1222 | else | |
1223 | { | |
1224 | lbrac_line = 1; | |
1225 | rbrac_line = -1; | |
1226 | } | |
1227 | ||
0f41302f | 1228 | /* Reset input file. */ |
05227b51 | 1229 | inf_ptr = inf_buffer; |
7936052f PB |
1230 | lineno = 1; |
1231 | ||
1232 | for (;;) | |
1233 | { | |
1234 | if (lineno == lbrac_line) | |
1235 | write_lbrac (); | |
1236 | if (lineno == rbrac_line) | |
1237 | write_rbrac (); | |
1238 | for (;;) | |
1239 | { | |
1240 | struct fn_decl *fn; | |
c2b6b9a1 | 1241 | c = INF_GET (); |
7936052f PB |
1242 | if (c == EOF) |
1243 | break; | |
e9a780ec | 1244 | if (ISALPHA (c) || c == '_') |
7936052f | 1245 | { |
05227b51 | 1246 | c = inf_scan_ident (&buf, c); |
081f5e7e | 1247 | (void) INF_UNGET (c); |
7936052f | 1248 | fputs (buf.base, outf); |
b3ca463c | 1249 | fn = lookup_std_proto (buf.base, strlen (buf.base)); |
7936052f PB |
1250 | /* We only want to edit the declaration matching the one |
1251 | seen by scan-decls, as there can be multiple | |
0f41302f | 1252 | declarations, selected by #ifdef __STDC__ or whatever. */ |
7936052f PB |
1253 | if (fn && fn->partial && fn->partial->line_seen == lineno) |
1254 | { | |
05227b51 | 1255 | c = inf_skip_spaces (' '); |
7936052f PB |
1256 | if (c == EOF) |
1257 | break; | |
1258 | if (c == '(') | |
1259 | { | |
05227b51 | 1260 | c = inf_skip_spaces (' '); |
7936052f PB |
1261 | if (c == ')') |
1262 | { | |
1263 | fprintf (outf, " _PARAMS((%s))", fn->params); | |
1264 | } | |
1265 | else | |
1266 | { | |
1267 | putc ('(', outf); | |
081f5e7e | 1268 | (void) INF_UNGET (c); |
7936052f PB |
1269 | } |
1270 | } | |
1271 | else | |
e9cd0b25 | 1272 | fprintf (outf, " %c", c); |
7936052f PB |
1273 | } |
1274 | } | |
1275 | else | |
05227b51 PB |
1276 | { |
1277 | putc (c, outf); | |
1278 | if (c == '\n') | |
1279 | break; | |
1280 | } | |
7936052f PB |
1281 | } |
1282 | if (c == EOF) | |
1283 | break; | |
1284 | lineno++; | |
1285 | } | |
1286 | if (rbrac_line < 0) | |
1287 | write_rbrac (); | |
1288 | ||
7936052f PB |
1289 | fclose (outf); |
1290 | ||
1291 | return 0; | |
1292 | } | |
b3ca463c | 1293 | \f |
487a6e06 KG |
1294 | |
1295 | static void | |
1296 | v_fatal (str, ap) | |
1297 | const char * str; | |
1298 | va_list ap; | |
b3ca463c | 1299 | { |
ebc27362 | 1300 | fprintf (stderr, "%s: %s: ", progname, inc_filename); |
487a6e06 | 1301 | vfprintf (stderr, str, ap); |
b3ca463c | 1302 | fprintf (stderr, "\n"); |
487a6e06 | 1303 | |
3efba298 | 1304 | exit (FATAL_EXIT_CODE); |
b3ca463c PB |
1305 | } |
1306 | ||
bcc5cac9 | 1307 | static void |
711d877c | 1308 | fatal VPARAMS ((const char *str, ...)) |
c57a4b7c | 1309 | { |
5148a72b | 1310 | #ifndef ANSI_PROTOTYPES |
487a6e06 KG |
1311 | const char *str; |
1312 | #endif | |
1313 | va_list ap; | |
1314 | ||
1315 | VA_START(ap, str); | |
1316 | ||
5148a72b | 1317 | #ifndef ANSI_PROTOTYPES |
487a6e06 KG |
1318 | str = va_arg (ap, const char *); |
1319 | #endif | |
1320 | ||
1321 | v_fatal(str, ap); | |
1322 | va_end(ap); | |
1323 | } |