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e7f9bcdc | 1 | /* fix-header.c - Make C header file suitable for C++. |
711d877c | 2 | Copyright (C) 1993, 94-99, 2000 Free Software Foundation, Inc. |
7936052f PB |
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 | |
1a10ad65 | 16 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
7936052f PB |
17 | |
18 | /* This program massages a system include file (such as stdio.h), | |
9e04c65a | 19 | into a form that is compatible with GNU C and GNU C++. |
7936052f PB |
20 | |
21 | * extern "C" { ... } braces are added (inside #ifndef __cplusplus), | |
05227b51 | 22 | if they seem to be needed. These prevent C++ compilers from name |
7936052f PB |
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 | |
081f5e7e | 29 | the empty parameter list with the argument list from sys-protos.h. |
7936052f PB |
30 | |
31 | * The program can be given a list of (names of) required standard | |
9faa82d8 | 32 | functions (such as fclose for stdio.h). If a required function |
7936052f PB |
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: | |
b3ca463c | 62 | fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS] |
7936052f PB |
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) | |
b3ca463c | 69 | * OPTIONS are such as you would pass to cpp. |
7936052f | 70 | |
0f41302f | 71 | Written by Per Bothner <bothner@cygnus.com>, July 1993. */ |
7936052f | 72 | |
39eda06e | 73 | #include "hconfig.h" |
b04cd507 | 74 | #include "system.h" |
7936052f PB |
75 | #include "obstack.h" |
76 | #include "scan.h" | |
b3ca463c | 77 | #include "cpplib.h" |
0afdf565 | 78 | |
711d877c KG |
79 | static void v_fatal PARAMS ((const char *, va_list)) ATTRIBUTE_NORETURN; |
80 | static void fatal PARAMS ((const char *, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; | |
35e93fb4 | 81 | |
b3ca463c | 82 | sstring buf; |
8fb0620c | 83 | |
7936052f PB |
84 | int verbose = 0; |
85 | int partial_count = 0; | |
b3ca463c PB |
86 | int warnings = 0; |
87 | ||
88 | /* We no longer need to add extern "C", because cpp implicitly | |
89 | forces the standard include files to be treated as C. */ | |
90 | /*#define ADD_MISSING_EXTERN_C 1 */ | |
91 | ||
92 | #if ADD_MISSING_EXTERN_C | |
7936052f | 93 | int missing_extern_C_count = 0; |
af86171d | 94 | #endif |
7936052f PB |
95 | |
96 | #include "xsys-protos.h" | |
97 | ||
b3ca463c | 98 | #ifdef FIXPROTO_IGNORE_LIST |
0f41302f | 99 | /* This is a currently unused feature. */ |
b3ca463c PB |
100 | |
101 | /* List of files and directories to ignore. | |
102 | A directory name (ending in '/') means ignore anything in that | |
103 | directory. (It might be more efficient to do directory pruning | |
104 | earlier in fixproto, but this is simpler and easier to customize.) */ | |
105 | ||
106 | static char *files_to_ignore[] = { | |
107 | "X11/", | |
108 | FIXPROTO_IGNORE_LIST | |
109 | 0 | |
110 | }; | |
111 | #endif | |
112 | ||
05227b51 PB |
113 | char *inf_buffer; |
114 | char *inf_limit; | |
115 | char *inf_ptr; | |
05227b51 | 116 | |
7936052f PB |
117 | /* Certain standard files get extra treatment */ |
118 | ||
119 | enum special_file | |
120 | { | |
121 | no_special, | |
4f1817ee MH |
122 | #ifdef errno_h |
123 | #undef errno_h | |
124 | #endif | |
b3ca463c | 125 | errno_h, |
4f1817ee MH |
126 | #ifdef stdio_h |
127 | #undef stdio_h | |
128 | #endif | |
b3ca463c | 129 | stdio_h, |
4f1817ee MH |
130 | #ifdef stdlib_h |
131 | #undef stdlib_h | |
132 | #endif | |
5a3f1ec3 | 133 | stdlib_h, |
4f1817ee MH |
134 | #ifdef sys_stat_h |
135 | #undef sys_stat_h | |
136 | #endif | |
b3ca463c PB |
137 | sys_stat_h |
138 | }; | |
139 | ||
140 | /* A NAMELIST is a sequence of names, separated by '\0', and terminated | |
0f41302f | 141 | by an empty name (i.e. by "\0\0"). */ |
b3ca463c | 142 | |
0f41302f | 143 | typedef const char *namelist; |
b3ca463c | 144 | |
0f41302f | 145 | /* The following macros provide the bits for symbol_flags. */ |
94442062 PB |
146 | typedef int symbol_flags; |
147 | ||
0f41302f | 148 | /* Used to mark names defined in the ANSI/ISO C standard. */ |
94442062 PB |
149 | #define ANSI_SYMBOL 1 |
150 | ||
9e04c65a KG |
151 | /* We no longer massage include files for POSIX or XOPEN symbols, |
152 | as there are now several versions of the POSIX and XOPEN standards, | |
153 | and it would be a maintenance nightmare for us to track them all. | |
154 | Better to be compatible with the system include files. */ | |
155 | /*#define ADD_MISSING_POSIX 1 */ | |
156 | /*#define ADD_MISSING_XOPEN 1 */ | |
157 | ||
158 | #if ADD_MISSING_POSIX | |
0f41302f | 159 | /* Used to mark names defined in the Posix.1 or Posix.2 standard. */ |
94442062 PB |
160 | #define POSIX1_SYMBOL 2 |
161 | #define POSIX2_SYMBOL 4 | |
9e04c65a KG |
162 | #else |
163 | #define POSIX1_SYMBOL 0 | |
164 | #define POSIX2_SYMBOL 0 | |
165 | #endif | |
94442062 | 166 | |
9e04c65a | 167 | #if ADD_MISSING_XOPEN |
0f41302f | 168 | /* Used to mark names defined in X/Open Portability Guide. */ |
5a3f1ec3 | 169 | #define XOPEN_SYMBOL 8 |
0f41302f | 170 | /* Used to mark names defined in X/Open UNIX Extensions. */ |
5a3f1ec3 | 171 | #define XOPEN_EXTENDED_SYMBOL 16 |
9e04c65a KG |
172 | #else |
173 | #define XOPEN_SYMBOL 0 | |
174 | #define XOPEN_EXTENDED_SYMBOL 0 | |
175 | #endif | |
5a3f1ec3 | 176 | |
94442062 | 177 | /* Used to indicate names that are not functions */ |
5a3f1ec3 | 178 | #define MACRO_SYMBOL 512 |
94442062 PB |
179 | |
180 | struct symbol_list { | |
181 | symbol_flags flags; | |
182 | namelist names; | |
b3ca463c PB |
183 | }; |
184 | ||
94442062 PB |
185 | #define SYMBOL_TABLE_SIZE 10 |
186 | struct symbol_list symbol_table[SYMBOL_TABLE_SIZE]; | |
187 | int cur_symbol_table_size; | |
b3ca463c | 188 | |
711d877c KG |
189 | static void add_symbols PARAMS ((symbol_flags, namelist)); |
190 | static struct fn_decl *lookup_std_proto PARAMS ((const char *, int)); | |
191 | static void write_lbrac PARAMS ((void)); | |
192 | static void recognized_macro PARAMS ((const char *)); | |
193 | static void check_macro_names PARAMS ((cpp_reader *, namelist)); | |
194 | static void read_scan_file PARAMS ((char *, int, char **)); | |
195 | static void write_rbrac PARAMS ((void)); | |
196 | static int inf_skip_spaces PARAMS ((int)); | |
197 | static int inf_read_upto PARAMS ((sstring *, int)); | |
198 | static int inf_scan_ident PARAMS ((sstring *, int)); | |
199 | static int check_protection PARAMS ((int *, int *)); | |
bcc5cac9 KG |
200 | |
201 | static void | |
94442062 PB |
202 | add_symbols (flags, names) |
203 | symbol_flags flags; | |
b3ca463c PB |
204 | namelist names; |
205 | { | |
94442062 PB |
206 | symbol_table[cur_symbol_table_size].flags = flags; |
207 | symbol_table[cur_symbol_table_size].names = names; | |
208 | cur_symbol_table_size++; | |
209 | if (cur_symbol_table_size >= SYMBOL_TABLE_SIZE) | |
210 | fatal ("too many calls to add_symbols"); | |
0f41302f | 211 | symbol_table[cur_symbol_table_size].names = NULL; /* Termination. */ |
b3ca463c PB |
212 | } |
213 | ||
94442062 PB |
214 | struct std_include_entry { |
215 | const char *name; | |
216 | symbol_flags flags; | |
217 | namelist names; | |
218 | }; | |
219 | ||
0f41302f | 220 | const char NONE[] = ""; /* The empty namelist. */ |
94442062 | 221 | |
0f41302f | 222 | /* Special name to indicate a continuation line in std_include_table. */ |
94442062 | 223 | const char CONTINUED[] = ""; |
b3ca463c PB |
224 | |
225 | struct std_include_entry *include_entry; | |
226 | ||
227 | struct std_include_entry std_include_table [] = { | |
94442062 | 228 | { "ctype.h", ANSI_SYMBOL, |
b3ca463c | 229 | "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\ |
94442062 | 230 | isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" }, |
b3ca463c | 231 | |
94442062 | 232 | { "dirent.h", POSIX1_SYMBOL, "closedir\0opendir\0readdir\0rewinddir\0"}, |
b3ca463c | 233 | |
94442062 | 234 | { "errno.h", ANSI_SYMBOL|MACRO_SYMBOL, "errno\0" }, |
b3ca463c | 235 | |
0f41302f | 236 | /* ANSI_SYMBOL is wrong, but ... */ |
94442062 | 237 | { "curses.h", ANSI_SYMBOL, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\ |
b3ca463c PB |
238 | mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\ |
239 | scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\ | |
240 | waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\ | |
94442062 | 241 | wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" }, |
b3ca463c | 242 | |
94442062 | 243 | { "fcntl.h", POSIX1_SYMBOL, "creat\0fcntl\0open\0" }, |
b3ca463c PB |
244 | |
245 | /* Maybe also "getgrent fgetgrent setgrent endgrent" */ | |
94442062 | 246 | { "grp.h", POSIX1_SYMBOL, "getgrgid\0getgrnam\0" }, |
b3ca463c PB |
247 | |
248 | /*{ "limit.h", ... provided by gcc }, */ | |
249 | ||
94442062 | 250 | { "locale.h", ANSI_SYMBOL, "localeconv\0setlocale\0" }, |
b3ca463c | 251 | |
94442062 PB |
252 | { "math.h", ANSI_SYMBOL, |
253 | "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\ | |
b3ca463c | 254 | fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\ |
94442062 PB |
255 | tan\0tanh\0" }, |
256 | ||
257 | { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "HUGE_VAL\0" }, | |
b3ca463c | 258 | |
94442062 | 259 | { "pwd.h", POSIX1_SYMBOL, "getpwnam\0getpwuid\0" }, |
b3ca463c | 260 | |
0f41302f | 261 | /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */ |
94442062 | 262 | { "setjmp.h", ANSI_SYMBOL, "longjmp\0setjmp\0" }, |
b3ca463c PB |
263 | |
264 | /* Left out signal() - its prototype is too complex for us! | |
265 | Also left out "sigaction sigaddset sigdelset sigemptyset | |
266 | sigfillset sigismember sigpending sigprocmask sigsuspend" | |
267 | because these need sigset_t or struct sigaction. | |
0f41302f | 268 | Most systems that provide them will also declare them. */ |
94442062 | 269 | { "signal.h", ANSI_SYMBOL, "kill\0raise\0" }, |
b3ca463c | 270 | |
94442062 PB |
271 | { "stdio.h", ANSI_SYMBOL, |
272 | "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\ | |
b3ca463c | 273 | fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\ |
9e04c65a | 274 | fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0perror\0\ |
b3ca463c PB |
275 | printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\ |
276 | setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\ | |
94442062 PB |
277 | tmpnam\0ungetc\0" }, |
278 | { CONTINUED, POSIX1_SYMBOL, "fdopen\0fileno\0" }, | |
0f41302f | 279 | { CONTINUED, POSIX2_SYMBOL, "pclose\0popen\0" }, /* I think ... */ |
b3ca463c PB |
280 | /* Should perhaps also handle NULL, EOF, ... ? */ |
281 | ||
282 | /* "div ldiv", - ignored because these depend on div_t, ldiv_t | |
283 | ignore these: "mblen mbstowcs mbstowc wcstombs wctomb" | |
284 | Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions. | |
285 | Should perhaps also add NULL */ | |
94442062 PB |
286 | { "stdlib.h", ANSI_SYMBOL, |
287 | "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\ | |
b3ca463c | 288 | exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\ |
94442062 | 289 | srand\0strtod\0strtol\0strtoul\0system\0" }, |
5a3f1ec3 | 290 | { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "EXIT_FAILURE\0EXIT_SUCCESS\0" }, |
b3ca463c | 291 | |
94442062 | 292 | { "string.h", ANSI_SYMBOL, "memchr\0memcmp\0memcpy\0memmove\0memset\0\ |
b3ca463c PB |
293 | strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\ |
294 | strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\ | |
94442062 | 295 | strtok\0strxfrm\0" }, |
b3ca463c PB |
296 | /* Should perhaps also add NULL and size_t */ |
297 | ||
5a3f1ec3 PB |
298 | { "strings.h", XOPEN_EXTENDED_SYMBOL, |
299 | "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" }, | |
300 | ||
301 | { "strops.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, | |
302 | ||
303 | /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines | |
304 | ioctl in <strops.h>. However, many systems have it is sys/ioctl.h, | |
0f41302f | 305 | and many systems do have <sys/ioctl.h> but not <strops.h>. */ |
5a3f1ec3 PB |
306 | { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, |
307 | ||
308 | { "sys/socket.h", XOPEN_EXTENDED_SYMBOL, "socket\0" }, | |
309 | ||
94442062 PB |
310 | { "sys/stat.h", POSIX1_SYMBOL, |
311 | "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" }, | |
312 | { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, | |
b3ca463c PB |
313 | "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\ |
314 | S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" }, | |
5a3f1ec3 PB |
315 | { CONTINUED, XOPEN_EXTENDED_SYMBOL, "fchmod\0" }, |
316 | ||
317 | #if 0 | |
318 | /* How do we handle fd_set? */ | |
319 | { "sys/time.h", XOPEN_EXTENDED_SYMBOL, "select\0" }, | |
320 | { "sys/select.h", XOPEN_EXTENDED_SYMBOL /* fake */, "select\0" }, | |
321 | #endif | |
b3ca463c | 322 | |
94442062 | 323 | { "sys/times.h", POSIX1_SYMBOL, "times\0" }, |
b3ca463c PB |
324 | /* "sys/types.h" add types (not in old g++-include) */ |
325 | ||
94442062 | 326 | { "sys/utsname.h", POSIX1_SYMBOL, "uname\0" }, |
b3ca463c | 327 | |
94442062 PB |
328 | { "sys/wait.h", POSIX1_SYMBOL, "wait\0waitpid\0" }, |
329 | { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, | |
b3ca463c PB |
330 | "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\ |
331 | WTERMSIG\0WNOHANG\0WNOTRACED\0" }, | |
332 | ||
94442062 | 333 | { "tar.h", POSIX1_SYMBOL, NONE }, |
b3ca463c | 334 | |
94442062 PB |
335 | { "termios.h", POSIX1_SYMBOL, |
336 | "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" }, | |
b3ca463c | 337 | |
94442062 PB |
338 | { "time.h", ANSI_SYMBOL, |
339 | "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" }, | |
b3ca463c | 340 | |
94442062 PB |
341 | { "unistd.h", POSIX1_SYMBOL, |
342 | "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\ | |
b3ca463c | 343 | dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\ |
94442062 | 344 | getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\ |
b3ca463c PB |
345 | getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\ |
346 | setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\ | |
94442062 PB |
347 | ttyname\0unlink\0write\0" }, |
348 | { CONTINUED, POSIX2_SYMBOL, "getopt\0" }, | |
5a3f1ec3 | 349 | { CONTINUED, XOPEN_EXTENDED_SYMBOL, |
8a2cf1b4 | 350 | "lockf\0gethostid\0gethostname\0readlink\0symlink\0" }, |
5a3f1ec3 PB |
351 | |
352 | { "utime.h", POSIX1_SYMBOL, "utime\0" }, | |
b3ca463c | 353 | |
94442062 | 354 | { NULL, 0, NONE } |
7936052f PB |
355 | }; |
356 | ||
357 | enum special_file special_file_handling = no_special; | |
358 | ||
0f41302f | 359 | /* They are set if the corresponding macro has been seen. */ |
5a3f1ec3 | 360 | /* The following are only used when handling sys/stat.h */ |
7936052f PB |
361 | int seen_S_IFBLK = 0, seen_S_ISBLK = 0; |
362 | int seen_S_IFCHR = 0, seen_S_ISCHR = 0; | |
363 | int seen_S_IFDIR = 0, seen_S_ISDIR = 0; | |
364 | int seen_S_IFIFO = 0, seen_S_ISFIFO = 0; | |
365 | int seen_S_IFLNK = 0, seen_S_ISLNK = 0; | |
366 | int seen_S_IFREG = 0, seen_S_ISREG = 0; | |
5a3f1ec3 PB |
367 | /* The following are only used when handling errno.h */ |
368 | int seen_errno = 0; | |
369 | /* The following are only used when handling stdlib.h */ | |
370 | int seen_EXIT_FAILURE = 0, seen_EXIT_SUCCESS = 0; | |
10b8b0ba | 371 | \f |
7936052f | 372 | #define obstack_chunk_alloc xmalloc |
bcc5cac9 | 373 | #define obstack_chunk_free free |
7936052f PB |
374 | struct obstack scan_file_obstack; |
375 | ||
376 | /* NOTE: If you edit this, also edit gen-protos.c !! */ | |
0f41302f | 377 | |
bcc5cac9 | 378 | static struct fn_decl * |
b3ca463c PB |
379 | lookup_std_proto (name, name_length) |
380 | const char *name; | |
381 | int name_length; | |
7936052f | 382 | { |
5fa7f88c | 383 | int i = hashstr (name, name_length) % HASH_SIZE; |
7936052f PB |
384 | int i0 = i; |
385 | for (;;) | |
386 | { | |
387 | struct fn_decl *fn; | |
388 | if (hash_tab[i] == 0) | |
389 | return NULL; | |
390 | fn = &std_protos[hash_tab[i]]; | |
79c9824e | 391 | if ((int) strlen (fn->fname) == name_length |
b3ca463c | 392 | && strncmp (fn->fname, name, name_length) == 0) |
7936052f PB |
393 | return fn; |
394 | i = (i+1) % HASH_SIZE; | |
395 | if (i == i0) | |
c2b6b9a1 | 396 | abort (); |
7936052f PB |
397 | } |
398 | } | |
399 | ||
400 | char *inc_filename; | |
401 | int inc_filename_length; | |
bcc5cac9 | 402 | const char *progname = "fix-header"; |
7936052f | 403 | FILE *outf; |
7936052f PB |
404 | sstring line; |
405 | ||
406 | int lbrac_line, rbrac_line; | |
407 | ||
b3ca463c | 408 | int required_unseen_count = 0; |
5a3f1ec3 | 409 | int required_other = 0; |
7936052f | 410 | |
bcc5cac9 | 411 | static void |
7936052f PB |
412 | write_lbrac () |
413 | { | |
b156894e | 414 | |
b3ca463c | 415 | #if ADD_MISSING_EXTERN_C |
b156894e RS |
416 | if (missing_extern_C_count + required_unseen_count > 0) |
417 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); | |
af86171d | 418 | #endif |
7936052f PB |
419 | |
420 | if (partial_count) | |
421 | { | |
422 | fprintf (outf, "#ifndef _PARAMS\n"); | |
423 | fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n"); | |
424 | fprintf (outf, "#define _PARAMS(ARGS) ARGS\n"); | |
425 | fprintf (outf, "#else\n"); | |
426 | fprintf (outf, "#define _PARAMS(ARGS) ()\n"); | |
427 | fprintf (outf, "#endif\n#endif /* _PARAMS */\n"); | |
428 | } | |
429 | } | |
430 | ||
431 | struct partial_proto | |
432 | { | |
433 | struct partial_proto *next; | |
434 | char *fname; /* name of function */ | |
435 | char *rtype; /* return type */ | |
436 | struct fn_decl *fn; | |
437 | int line_seen; | |
438 | }; | |
439 | ||
440 | struct partial_proto *partial_proto_list = NULL; | |
441 | ||
b3ca463c | 442 | struct partial_proto required_dummy_proto, seen_dummy_proto; |
7936052f PB |
443 | #define REQUIRED(FN) ((FN)->partial == &required_dummy_proto) |
444 | #define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto) | |
b3ca463c PB |
445 | #define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto) |
446 | #define SEEN(FN) ((FN)->partial == &seen_dummy_proto) | |
7936052f | 447 | |
bcc5cac9 | 448 | static void |
05227b51 | 449 | recognized_macro (fname) |
bcc5cac9 | 450 | const char *fname; |
7936052f | 451 | { |
0f41302f | 452 | /* The original include file defines fname as a macro. */ |
b3ca463c | 453 | struct fn_decl *fn = lookup_std_proto (fname, strlen (fname)); |
7936052f | 454 | |
0f41302f | 455 | /* Since fname is a macro, don't require a prototype for it. */ |
b3ca463c | 456 | if (fn) |
7936052f | 457 | { |
b3ca463c PB |
458 | if (REQUIRED (fn)) |
459 | required_unseen_count--; | |
460 | SET_SEEN (fn); | |
05227b51 | 461 | } |
7936052f | 462 | |
05227b51 PB |
463 | switch (special_file_handling) |
464 | { | |
b3ca463c | 465 | case errno_h: |
5a3f1ec3 PB |
466 | if (strcmp (fname, "errno") == 0 && !seen_errno) |
467 | seen_errno = 1, required_other--; | |
468 | break; | |
469 | case stdlib_h: | |
470 | if (strcmp (fname, "EXIT_FAILURE") == 0 && !seen_EXIT_FAILURE) | |
471 | seen_EXIT_FAILURE = 1, required_other--; | |
472 | if (strcmp (fname, "EXIT_SUCCESS") == 0 && !seen_EXIT_SUCCESS) | |
473 | seen_EXIT_SUCCESS = 1, required_other--; | |
05227b51 | 474 | break; |
b3ca463c | 475 | case sys_stat_h: |
05227b51 | 476 | if (fname[0] == 'S' && fname[1] == '_') |
7936052f | 477 | { |
05227b51 PB |
478 | if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++; |
479 | else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++; | |
480 | else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++; | |
481 | else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++; | |
482 | else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++; | |
483 | else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++; | |
484 | else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++; | |
485 | else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++; | |
486 | else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++; | |
487 | else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++; | |
488 | else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++; | |
489 | else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++; | |
7936052f | 490 | } |
9e04c65a KG |
491 | break; |
492 | ||
493 | default: | |
494 | break; | |
05227b51 PB |
495 | } |
496 | } | |
7936052f | 497 | |
05227b51 | 498 | void |
b3ca463c | 499 | recognized_extern (name, name_length, type, type_length) |
4b66e1c0 KG |
500 | const char *name; |
501 | const char *type ATTRIBUTE_UNUSED; | |
bcc5cac9 | 502 | int name_length, type_length ATTRIBUTE_UNUSED; |
05227b51 PB |
503 | { |
504 | switch (special_file_handling) | |
505 | { | |
b3ca463c | 506 | case errno_h: |
9e04c65a | 507 | if (name_length == 5 && strncmp (name, "errno", 5) == 0 && !seen_errno) |
5a3f1ec3 | 508 | seen_errno = 1, required_other--; |
05227b51 | 509 | break; |
9e04c65a KG |
510 | |
511 | default: | |
512 | break; | |
05227b51 PB |
513 | } |
514 | } | |
7936052f | 515 | |
05227b51 PB |
516 | /* Called by scan_decls if it saw a function definition for a function |
517 | named FNAME, with return type RTYPE, and argument list ARGS, | |
518 | in source file FILE_SEEN on line LINE_SEEN. | |
519 | KIND is 'I' for an inline function; | |
520 | 'F' if a normal function declaration preceded by 'extern "C"' | |
521 | (or nested inside 'extern "C"' braces); or | |
0f41302f | 522 | 'f' for other function declarations. */ |
7936052f | 523 | |
05227b51 | 524 | void |
b3ca463c PB |
525 | recognized_function (fname, fname_length, |
526 | kind, rtype, rtype_length, | |
527 | have_arg_list, file_seen, line_seen) | |
4b66e1c0 | 528 | const char *fname; |
b3ca463c | 529 | int fname_length; |
05227b51 | 530 | int kind; /* One of 'f' 'F' or 'I' */ |
4b66e1c0 | 531 | const char *rtype; |
b3ca463c PB |
532 | int rtype_length; |
533 | int have_arg_list; | |
4b66e1c0 | 534 | const char *file_seen; |
05227b51 PB |
535 | int line_seen; |
536 | { | |
537 | struct partial_proto *partial; | |
538 | int i; | |
539 | struct fn_decl *fn; | |
b3ca463c | 540 | #if ADD_MISSING_EXTERN_C |
05227b51 PB |
541 | if (kind == 'f') |
542 | missing_extern_C_count++; | |
af86171d | 543 | #endif |
7936052f | 544 | |
b3ca463c | 545 | fn = lookup_std_proto (fname, fname_length); |
7936052f | 546 | |
0f41302f | 547 | /* Remove the function from the list of required function. */ |
b3ca463c | 548 | if (fn) |
05227b51 | 549 | { |
b3ca463c PB |
550 | if (REQUIRED (fn)) |
551 | required_unseen_count--; | |
552 | SET_SEEN (fn); | |
05227b51 | 553 | } |
e9cd0b25 | 554 | |
0f41302f | 555 | /* If we have a full prototype, we're done. */ |
b3ca463c | 556 | if (have_arg_list) |
05227b51 PB |
557 | return; |
558 | ||
559 | if (kind == 'I') /* don't edit inline function */ | |
560 | return; | |
561 | ||
562 | /* If the partial prototype was included from some other file, | |
0f41302f | 563 | we don't need to patch it up (in this run). */ |
05227b51 PB |
564 | i = strlen (file_seen); |
565 | if (i < inc_filename_length | |
566 | || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0) | |
567 | return; | |
568 | ||
569 | if (fn == NULL) | |
570 | return; | |
c2b6b9a1 | 571 | if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0) |
05227b51 PB |
572 | return; |
573 | ||
574 | /* We only have a partial function declaration, | |
0f41302f | 575 | so remember that we have to add a complete prototype. */ |
05227b51 | 576 | partial_count++; |
0f41302f | 577 | partial = (struct partial_proto *) |
c2b6b9a1 | 578 | obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto)); |
b3ca463c PB |
579 | partial->fname = obstack_alloc (&scan_file_obstack, fname_length + 1); |
580 | bcopy (fname, partial->fname, fname_length); | |
581 | partial->fname[fname_length] = 0; | |
582 | partial->rtype = obstack_alloc (&scan_file_obstack, rtype_length + 1); | |
583 | sprintf (partial->rtype, "%.*s", rtype_length, rtype); | |
05227b51 PB |
584 | partial->line_seen = line_seen; |
585 | partial->fn = fn; | |
586 | fn->partial = partial; | |
587 | partial->next = partial_proto_list; | |
588 | partial_proto_list = partial; | |
589 | if (verbose) | |
590 | { | |
591 | fprintf (stderr, "(%s: %s non-prototype function declaration.)\n", | |
b3ca463c PB |
592 | inc_filename, partial->fname); |
593 | } | |
594 | } | |
595 | ||
596 | /* For any name in NAMES that is defined as a macro, | |
0f41302f | 597 | call recognized_macro on it. */ |
b3ca463c | 598 | |
bcc5cac9 | 599 | static void |
b3ca463c | 600 | check_macro_names (pfile, names) |
c57a4b7c | 601 | cpp_reader *pfile; |
b3ca463c PB |
602 | namelist names; |
603 | { | |
604 | while (*names) | |
605 | { | |
cf4ed945 | 606 | if (cpp_defined (pfile, names, -1)) |
b3ca463c PB |
607 | recognized_macro (names); |
608 | names += strlen (names) + 1; | |
05227b51 PB |
609 | } |
610 | } | |
7936052f | 611 | |
bcc5cac9 | 612 | static void |
b3ca463c PB |
613 | read_scan_file (in_fname, argc, argv) |
614 | char *in_fname; | |
615 | int argc; | |
616 | char **argv; | |
05227b51 | 617 | { |
b3ca463c PB |
618 | cpp_reader scan_in; |
619 | cpp_options scan_options; | |
620 | struct fn_decl *fn; | |
621 | int i; | |
94442062 | 622 | register struct symbol_list *cur_symbols; |
b3ca463c | 623 | |
c2b6b9a1 | 624 | obstack_init (&scan_file_obstack); |
7936052f | 625 | |
c57a4b7c | 626 | cpp_reader_init (&scan_in); |
c50bca08 | 627 | scan_in.opts = &scan_options; |
c57a4b7c | 628 | cpp_options_init (&scan_options); |
cf4ed945 ZW |
629 | /* We are going to be scanning a header file out of its proper context, |
630 | so ignore warnings and errors. */ | |
631 | scan_options.inhibit_warnings = 1; | |
632 | scan_options.inhibit_errors = 1; | |
b3ca463c | 633 | i = cpp_handle_options (&scan_in, argc, argv); |
35e93fb4 | 634 | if (i < argc && ! CPP_FATAL_ERRORS (&scan_in)) |
c57a4b7c | 635 | cpp_fatal (&scan_in, "Invalid option `%s'", argv[i]); |
35e93fb4 | 636 | if (CPP_FATAL_ERRORS (&scan_in)) |
c57a4b7c PB |
637 | exit (FATAL_EXIT_CODE); |
638 | ||
639 | if (! cpp_start_read (&scan_in, in_fname)) | |
640 | exit (FATAL_EXIT_CODE); | |
b3ca463c PB |
641 | CPP_OPTIONS (&scan_in)->no_line_commands = 1; |
642 | ||
643 | scan_decls (&scan_in, argc, argv); | |
94442062 PB |
644 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
645 | check_macro_names (&scan_in, cur_symbols->names); | |
b3ca463c PB |
646 | |
647 | if (verbose && (scan_in.errors + warnings) > 0) | |
648 | fprintf (stderr, "(%s: %d errors and %d warnings from cpp)\n", | |
649 | inc_filename, scan_in.errors, warnings); | |
650 | if (scan_in.errors) | |
2e3f9f3d | 651 | exit (SUCCESS_EXIT_CODE); |
b3ca463c PB |
652 | |
653 | /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf. | |
0f41302f | 654 | If so, those functions are also required. */ |
b3ca463c PB |
655 | if (special_file_handling == stdio_h |
656 | && (fn = lookup_std_proto ("_filbuf", 7)) != NULL) | |
657 | { | |
658 | static char getchar_call[] = "getchar();"; | |
db3cf6fb MS |
659 | cpp_buffer *buf |
660 | = cpp_push_buffer (&scan_in, getchar_call, sizeof(getchar_call) - 1); | |
b3ca463c PB |
661 | int old_written = CPP_WRITTEN (&scan_in); |
662 | int seen_filbuf = 0; | |
663 | ||
0f41302f | 664 | /* Scan the macro expansion of "getchar();". */ |
b3ca463c PB |
665 | for (;;) |
666 | { | |
667 | enum cpp_token token = cpp_get_token (&scan_in); | |
668 | int length = CPP_WRITTEN (&scan_in) - old_written; | |
669 | CPP_SET_WRITTEN (&scan_in, old_written); | |
0f41302f | 670 | if (token == CPP_EOF) /* Should not happen ... */ |
b3ca463c PB |
671 | break; |
672 | if (token == CPP_POP && CPP_BUFFER (&scan_in) == buf) | |
673 | { | |
674 | cpp_pop_buffer (&scan_in); | |
675 | break; | |
676 | } | |
677 | if (token == CPP_NAME && length == 7 | |
678 | && strcmp ("_filbuf", scan_in.token_buffer + old_written) == 0) | |
679 | seen_filbuf++; | |
680 | } | |
681 | if (seen_filbuf) | |
682 | { | |
683 | int need_filbuf = !SEEN (fn) && !REQUIRED (fn); | |
684 | struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7); | |
685 | int need_flsbuf | |
686 | = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn); | |
687 | ||
0f41302f | 688 | /* Append "_filbuf" and/or "_flsbuf" to the required functions. */ |
b3ca463c PB |
689 | if (need_filbuf + need_flsbuf) |
690 | { | |
9b3142b3 | 691 | const char *new_list; |
b3ca463c | 692 | if (need_filbuf) |
94442062 | 693 | SET_REQUIRED (fn); |
b3ca463c | 694 | if (need_flsbuf) |
94442062 PB |
695 | SET_REQUIRED (flsbuf_fn); |
696 | if (need_flsbuf + need_filbuf == 2) | |
697 | new_list = "_filbuf\0_flsbuf\0"; | |
698 | else if (need_flsbuf) | |
699 | new_list = "_flsbuf\0"; | |
700 | else /* if (need_flsbuf) */ | |
701 | new_list = "_filbuf\0"; | |
702 | add_symbols (ANSI_SYMBOL, new_list); | |
b3ca463c PB |
703 | required_unseen_count += need_filbuf + need_flsbuf; |
704 | } | |
705 | } | |
706 | } | |
7936052f | 707 | |
5a3f1ec3 | 708 | if (required_unseen_count + partial_count + required_other |
b3ca463c | 709 | #if ADD_MISSING_EXTERN_C |
af86171d JW |
710 | + missing_extern_C_count |
711 | #endif | |
712 | == 0) | |
7936052f PB |
713 | { |
714 | if (verbose) | |
715 | fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename); | |
2e3f9f3d | 716 | exit (SUCCESS_EXIT_CODE); |
7936052f | 717 | } |
e9cd0b25 PB |
718 | if (!verbose) |
719 | fprintf (stderr, "%s: fixing %s\n", progname, inc_filename); | |
720 | else | |
721 | { | |
722 | if (required_unseen_count) | |
723 | fprintf (stderr, "%s: %d missing function declarations.\n", | |
724 | inc_filename, required_unseen_count); | |
725 | if (partial_count) | |
726 | fprintf (stderr, "%s: %d non-prototype function declarations.\n", | |
727 | inc_filename, partial_count); | |
b3ca463c | 728 | #if ADD_MISSING_EXTERN_C |
e9cd0b25 PB |
729 | if (missing_extern_C_count) |
730 | fprintf (stderr, | |
731 | "%s: %d declarations not protected by extern \"C\".\n", | |
732 | inc_filename, missing_extern_C_count); | |
af86171d | 733 | #endif |
e9cd0b25 | 734 | } |
7936052f PB |
735 | } |
736 | ||
bcc5cac9 | 737 | static void |
7936052f PB |
738 | write_rbrac () |
739 | { | |
740 | struct fn_decl *fn; | |
b3ca463c | 741 | const char *cptr; |
94442062 | 742 | register struct symbol_list *cur_symbols; |
7936052f PB |
743 | |
744 | if (required_unseen_count) | |
b4e21e27 | 745 | { |
b4e21e27 | 746 | #ifdef NO_IMPLICIT_EXTERN_C |
55e2b88e | 747 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); |
b4e21e27 PB |
748 | #endif |
749 | } | |
7936052f | 750 | |
0f41302f | 751 | /* Now we print out prototypes for those functions that we haven't seen. */ |
94442062 | 752 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
7936052f | 753 | { |
94442062 PB |
754 | int if_was_emitted = 0; |
755 | int name_len; | |
756 | cptr = cur_symbols->names; | |
757 | for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) | |
758 | { | |
759 | int macro_protect = 0; | |
10b8b0ba | 760 | |
94442062 PB |
761 | if (cur_symbols->flags & MACRO_SYMBOL) |
762 | continue; | |
763 | ||
764 | fn = lookup_std_proto (cptr, name_len); | |
765 | if (fn == NULL || !REQUIRED (fn)) | |
766 | continue; | |
767 | ||
768 | if (!if_was_emitted) | |
769 | { | |
770 | /* what about curses. ??? or _flsbuf/_filbuf ??? */ | |
771 | if (cur_symbols->flags & ANSI_SYMBOL) | |
772 | fprintf (outf, | |
773 | "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n"); | |
5a3f1ec3 | 774 | else if (cur_symbols->flags & (POSIX1_SYMBOL|POSIX2_SYMBOL)) |
94442062 PB |
775 | fprintf (outf, |
776 | "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\ | |
5a3f1ec3 PB |
777 | ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\ |
778 | : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n"); | |
779 | else if (cur_symbols->flags & XOPEN_SYMBOL) | |
780 | { | |
781 | fprintf (outf, | |
782 | "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ | |
783 | || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n"); | |
784 | } | |
785 | else if (cur_symbols->flags & XOPEN_EXTENDED_SYMBOL) | |
786 | { | |
787 | fprintf (outf, | |
788 | "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ | |
789 | || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n"); | |
790 | } | |
791 | else | |
792 | { | |
793 | fatal ("internal error for function %s", fn->fname); | |
794 | } | |
94442062 PB |
795 | if_was_emitted = 1; |
796 | } | |
10b8b0ba | 797 | |
94442062 PB |
798 | /* In the case of memmove, protect in case the application |
799 | defines it as a macro before including the header. */ | |
800 | if (!strcmp (fn->fname, "memmove") | |
801 | || !strcmp (fn->fname, "vprintf") | |
802 | || !strcmp (fn->fname, "vfprintf") | |
803 | || !strcmp (fn->fname, "vsprintf") | |
25cf40e2 MH |
804 | || !strcmp (fn->fname, "rewinddir") |
805 | || !strcmp (fn->fname, "abort")) | |
94442062 PB |
806 | macro_protect = 1; |
807 | ||
808 | if (macro_protect) | |
809 | fprintf (outf, "#ifndef %s\n", fn->fname); | |
810 | fprintf (outf, "extern %s %s (%s);\n", | |
811 | fn->rtype, fn->fname, fn->params); | |
812 | if (macro_protect) | |
813 | fprintf (outf, "#endif\n"); | |
814 | } | |
815 | if (if_was_emitted) | |
816 | fprintf (outf, | |
817 | "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n"); | |
7936052f PB |
818 | } |
819 | if (required_unseen_count) | |
b4e21e27 PB |
820 | { |
821 | #ifdef NO_IMPLICIT_EXTERN_C | |
55e2b88e | 822 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); |
b4e21e27 | 823 | #endif |
b4e21e27 | 824 | } |
7936052f PB |
825 | |
826 | switch (special_file_handling) | |
827 | { | |
b3ca463c | 828 | case errno_h: |
5a3f1ec3 | 829 | if (!seen_errno) |
7936052f PB |
830 | fprintf (outf, "extern int errno;\n"); |
831 | break; | |
5a3f1ec3 PB |
832 | case stdlib_h: |
833 | if (!seen_EXIT_FAILURE) | |
834 | fprintf (outf, "#define EXIT_FAILURE 1\n"); | |
835 | if (!seen_EXIT_SUCCESS) | |
836 | fprintf (outf, "#define EXIT_SUCCESS 0\n"); | |
837 | break; | |
b3ca463c | 838 | case sys_stat_h: |
7936052f PB |
839 | if (!seen_S_ISBLK && seen_S_IFBLK) |
840 | fprintf (outf, | |
841 | "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n"); | |
842 | if (!seen_S_ISCHR && seen_S_IFCHR) | |
843 | fprintf (outf, | |
844 | "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n"); | |
845 | if (!seen_S_ISDIR && seen_S_IFDIR) | |
846 | fprintf (outf, | |
847 | "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n"); | |
848 | if (!seen_S_ISFIFO && seen_S_IFIFO) | |
849 | fprintf (outf, | |
850 | "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n"); | |
851 | if (!seen_S_ISLNK && seen_S_IFLNK) | |
852 | fprintf (outf, | |
853 | "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n"); | |
854 | if (!seen_S_ISREG && seen_S_IFREG) | |
855 | fprintf (outf, | |
856 | "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n"); | |
857 | break; | |
9e04c65a KG |
858 | |
859 | default: | |
860 | break; | |
7936052f PB |
861 | } |
862 | ||
863 | ||
b3ca463c | 864 | #if ADD_MISSING_EXTERN_C |
b156894e RS |
865 | if (missing_extern_C_count + required_unseen_count > 0) |
866 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); | |
af86171d | 867 | #endif |
7936052f PB |
868 | } |
869 | ||
7936052f PB |
870 | /* Returns 1 iff the file is properly protected from multiple inclusion: |
871 | #ifndef PROTECT_NAME | |
872 | #define PROTECT_NAME | |
873 | #endif | |
874 | ||
875 | */ | |
876 | ||
0f41302f | 877 | #define INF_GET() (inf_ptr < inf_limit ? *(unsigned char *) inf_ptr++ : EOF) |
c2b6b9a1 | 878 | #define INF_UNGET(c) ((c)!=EOF && inf_ptr--) |
05227b51 | 879 | |
bcc5cac9 | 880 | static int |
05227b51 PB |
881 | inf_skip_spaces (c) |
882 | int c; | |
883 | { | |
884 | for (;;) | |
885 | { | |
886 | if (c == ' ' || c == '\t') | |
c2b6b9a1 | 887 | c = INF_GET (); |
05227b51 PB |
888 | else if (c == '/') |
889 | { | |
c2b6b9a1 | 890 | c = INF_GET (); |
05227b51 PB |
891 | if (c != '*') |
892 | { | |
081f5e7e | 893 | (void) INF_UNGET (c); |
05227b51 PB |
894 | return '/'; |
895 | } | |
c2b6b9a1 | 896 | c = INF_GET (); |
05227b51 PB |
897 | for (;;) |
898 | { | |
899 | if (c == EOF) | |
900 | return EOF; | |
901 | else if (c != '*') | |
902 | { | |
903 | if (c == '\n') | |
904 | source_lineno++, lineno++; | |
905 | c = INF_GET (); | |
906 | } | |
c2b6b9a1 RS |
907 | else if ((c = INF_GET ()) == '/') |
908 | return INF_GET (); | |
05227b51 PB |
909 | } |
910 | } | |
911 | else | |
912 | break; | |
913 | } | |
914 | return c; | |
915 | } | |
916 | ||
0f41302f | 917 | /* Read into STR from inf_buffer upto DELIM. */ |
05227b51 | 918 | |
bcc5cac9 | 919 | static int |
05227b51 PB |
920 | inf_read_upto (str, delim) |
921 | sstring *str; | |
922 | int delim; | |
923 | { | |
924 | int ch; | |
925 | for (;;) | |
926 | { | |
927 | ch = INF_GET (); | |
928 | if (ch == EOF || ch == delim) | |
929 | break; | |
c2b6b9a1 | 930 | SSTRING_PUT (str, ch); |
05227b51 | 931 | } |
c2b6b9a1 | 932 | MAKE_SSTRING_SPACE (str, 1); |
05227b51 PB |
933 | *str->ptr = 0; |
934 | return ch; | |
935 | } | |
936 | ||
bcc5cac9 | 937 | static int |
05227b51 PB |
938 | inf_scan_ident (s, c) |
939 | register sstring *s; | |
940 | int c; | |
941 | { | |
942 | s->ptr = s->base; | |
e9a780ec | 943 | if (ISALPHA (c) || c == '_') |
05227b51 PB |
944 | { |
945 | for (;;) | |
946 | { | |
c2b6b9a1 | 947 | SSTRING_PUT (s, c); |
05227b51 | 948 | c = INF_GET (); |
e9a780ec | 949 | if (c == EOF || !(ISALNUM (c) || c == '_')) |
05227b51 PB |
950 | break; |
951 | } | |
952 | } | |
c2b6b9a1 | 953 | MAKE_SSTRING_SPACE (s, 1); |
05227b51 PB |
954 | *s->ptr = 0; |
955 | return c; | |
956 | } | |
957 | ||
958 | /* Returns 1 if the file is correctly protected against multiple | |
959 | inclusion, setting *ifndef_line to the line number of the initial #ifndef | |
960 | and setting *endif_line to the final #endif. | |
0f41302f | 961 | Otherwise return 0. */ |
05227b51 | 962 | |
bcc5cac9 | 963 | static int |
05227b51 | 964 | check_protection (ifndef_line, endif_line) |
7936052f PB |
965 | int *ifndef_line, *endif_line; |
966 | { | |
967 | int c; | |
968 | int if_nesting = 1; /* Level of nesting of #if's */ | |
969 | char *protect_name = NULL; /* Identifier following initial #ifndef */ | |
970 | int define_seen = 0; | |
971 | ||
0f41302f | 972 | /* Skip initial white space (including comments). */ |
7936052f PB |
973 | for (;; lineno++) |
974 | { | |
05227b51 | 975 | c = inf_skip_spaces (' '); |
7936052f PB |
976 | if (c == EOF) |
977 | return 0; | |
978 | if (c != '\n') | |
979 | break; | |
980 | } | |
981 | if (c != '#') | |
982 | return 0; | |
05227b51 | 983 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
c2b6b9a1 | 984 | if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0) |
7936052f PB |
985 | return 0; |
986 | ||
0f41302f | 987 | /* So far so good: We've seen an initial #ifndef. */ |
7936052f | 988 | *ifndef_line = lineno; |
05227b51 | 989 | c = inf_scan_ident (&buf, inf_skip_spaces (c)); |
c2b6b9a1 | 990 | if (SSTRING_LENGTH (&buf) == 0 || c == EOF) |
7936052f | 991 | return 0; |
1bc61c04 | 992 | protect_name = xstrdup (buf.base); |
7936052f | 993 | |
081f5e7e | 994 | (void) INF_UNGET (c); |
05227b51 | 995 | c = inf_read_upto (&buf, '\n'); |
7936052f PB |
996 | if (c == EOF) |
997 | return 0; | |
998 | lineno++; | |
999 | ||
1000 | for (;;) | |
1001 | { | |
c2b6b9a1 | 1002 | c = inf_skip_spaces (' '); |
7936052f PB |
1003 | if (c == EOF) |
1004 | return 0; | |
1005 | if (c == '\n') | |
1006 | { | |
1007 | lineno++; | |
1008 | continue; | |
1009 | } | |
1010 | if (c != '#') | |
1011 | goto skip_to_eol; | |
05227b51 | 1012 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
c2b6b9a1 | 1013 | if (SSTRING_LENGTH (&buf) == 0) |
7936052f PB |
1014 | ; |
1015 | else if (!strcmp (buf.base, "ifndef") | |
1016 | || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if")) | |
1017 | { | |
1018 | if_nesting++; | |
1019 | } | |
1020 | else if (!strcmp (buf.base, "endif")) | |
1021 | { | |
1022 | if_nesting--; | |
1023 | if (if_nesting == 0) | |
1024 | break; | |
1025 | } | |
1026 | else if (!strcmp (buf.base, "else")) | |
1027 | { | |
1028 | if (if_nesting == 1) | |
1029 | return 0; | |
1030 | } | |
1031 | else if (!strcmp (buf.base, "define")) | |
1032 | { | |
1033 | if (if_nesting != 1) | |
1034 | goto skip_to_eol; | |
05227b51 PB |
1035 | c = inf_skip_spaces (c); |
1036 | c = inf_scan_ident (&buf, c); | |
c2b6b9a1 | 1037 | if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0) |
7936052f PB |
1038 | define_seen = 1; |
1039 | } | |
1040 | skip_to_eol: | |
1041 | for (;;) | |
1042 | { | |
1043 | if (c == '\n' || c == EOF) | |
1044 | break; | |
c2b6b9a1 | 1045 | c = INF_GET (); |
7936052f PB |
1046 | } |
1047 | if (c == EOF) | |
1048 | return 0; | |
1049 | lineno++; | |
1050 | } | |
1051 | ||
1052 | if (!define_seen) | |
1053 | return 0; | |
1054 | *endif_line = lineno; | |
0f41302f | 1055 | /* Skip final white space (including comments). */ |
7936052f PB |
1056 | for (;;) |
1057 | { | |
05227b51 | 1058 | c = inf_skip_spaces (' '); |
7936052f PB |
1059 | if (c == EOF) |
1060 | break; | |
1061 | if (c != '\n') | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | return 1; | |
1066 | } | |
1067 | ||
711d877c | 1068 | extern int main PARAMS ((int, char **)); |
bcc5cac9 | 1069 | |
7936052f | 1070 | int |
c2b6b9a1 | 1071 | main (argc, argv) |
7936052f PB |
1072 | int argc; |
1073 | char **argv; | |
1074 | { | |
05227b51 PB |
1075 | int inf_fd; |
1076 | struct stat sbuf; | |
7936052f | 1077 | int c; |
9870475c JL |
1078 | #ifdef FIXPROTO_IGNORE_LIST |
1079 | int i; | |
1080 | #endif | |
1081 | const char *cptr; | |
7936052f | 1082 | int ifndef_line; |
05227b51 PB |
1083 | int endif_line; |
1084 | long to_read; | |
c2b6b9a1 | 1085 | long int inf_size; |
94442062 | 1086 | register struct symbol_list *cur_symbols; |
7936052f PB |
1087 | |
1088 | if (argv[0] && argv[0][0]) | |
9bbd1091 RS |
1089 | { |
1090 | register char *p; | |
1091 | ||
1092 | progname = 0; | |
1093 | for (p = argv[0]; *p; p++) | |
1094 | if (*p == '/') | |
1095 | progname = p; | |
1096 | progname = progname ? progname+1 : argv[0]; | |
1097 | } | |
7936052f PB |
1098 | |
1099 | if (argc < 4) | |
1100 | { | |
b3ca463c | 1101 | fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n", |
7936052f | 1102 | progname); |
2e3f9f3d | 1103 | exit (FATAL_EXIT_CODE); |
7936052f PB |
1104 | } |
1105 | ||
1106 | inc_filename = argv[1]; | |
1107 | inc_filename_length = strlen (inc_filename); | |
b3ca463c PB |
1108 | |
1109 | #ifdef FIXPROTO_IGNORE_LIST | |
1110 | for (i = 0; files_to_ignore[i] != NULL; i++) | |
1111 | { | |
1112 | char *ignore_name = files_to_ignore[i]; | |
1113 | int ignore_len = strlen (ignore_name); | |
1114 | if (strncmp (inc_filename, ignore_name, ignore_len) == 0) | |
1115 | { | |
1116 | if (ignore_name[ignore_len-1] == '/' | |
1117 | || inc_filename[ignore_len] == '\0') | |
1118 | { | |
1119 | if (verbose) | |
1120 | fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename); | |
2e3f9f3d | 1121 | exit (SUCCESS_EXIT_CODE); |
b3ca463c PB |
1122 | } |
1123 | } | |
1124 | ||
1125 | } | |
1126 | #endif | |
1127 | ||
7936052f | 1128 | if (strcmp (inc_filename, "sys/stat.h") == 0) |
b3ca463c | 1129 | special_file_handling = sys_stat_h; |
7936052f | 1130 | else if (strcmp (inc_filename, "errno.h") == 0) |
5a3f1ec3 PB |
1131 | special_file_handling = errno_h, required_other++; |
1132 | else if (strcmp (inc_filename, "stdlib.h") == 0) | |
1133 | special_file_handling = stdlib_h, required_other+=2; | |
b3ca463c PB |
1134 | else if (strcmp (inc_filename, "stdio.h") == 0) |
1135 | special_file_handling = stdio_h; | |
1136 | include_entry = std_include_table; | |
1137 | while (include_entry->name != NULL | |
93b9cce7 | 1138 | && ((strcmp (include_entry->name, CONTINUED) == 0) |
94442062 | 1139 | || strcmp (inc_filename, include_entry->name) != 0)) |
b3ca463c PB |
1140 | include_entry++; |
1141 | ||
94442062 PB |
1142 | if (include_entry->name != NULL) |
1143 | { | |
1144 | struct std_include_entry *entry; | |
1145 | cur_symbol_table_size = 0; | |
1146 | for (entry = include_entry; ;) | |
1147 | { | |
9e04c65a KG |
1148 | if (entry->flags) |
1149 | add_symbols (entry->flags, entry->names); | |
94442062 | 1150 | entry++; |
ceb45eb8 | 1151 | if (!entry->name || strcmp (entry->name, CONTINUED) != 0) |
94442062 PB |
1152 | break; |
1153 | } | |
1154 | } | |
1155 | else | |
1156 | symbol_table[0].names = NULL; | |
b3ca463c | 1157 | |
0f41302f | 1158 | /* Count and mark the prototypes required for this include file. */ |
94442062 | 1159 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
7936052f | 1160 | { |
94442062 PB |
1161 | int name_len; |
1162 | if (cur_symbols->flags & MACRO_SYMBOL) | |
1163 | continue; | |
1164 | cptr = cur_symbols->names; | |
1165 | for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) | |
1166 | { | |
1167 | struct fn_decl *fn = lookup_std_proto (cptr, name_len); | |
1168 | required_unseen_count++; | |
1169 | if (fn == NULL) | |
1170 | fprintf (stderr, "Internal error: No prototype for %s\n", cptr); | |
1171 | else | |
1172 | SET_REQUIRED (fn); | |
1173 | } | |
7936052f | 1174 | } |
7936052f | 1175 | |
b3ca463c | 1176 | read_scan_file (argv[2], argc - 4, argv + 4); |
7936052f | 1177 | |
05227b51 PB |
1178 | inf_fd = open (argv[2], O_RDONLY, 0666); |
1179 | if (inf_fd < 0) | |
7936052f PB |
1180 | { |
1181 | fprintf (stderr, "%s: Cannot open '%s' for reading -", | |
1182 | progname, argv[2]); | |
1183 | perror (NULL); | |
2e3f9f3d | 1184 | exit (FATAL_EXIT_CODE); |
7936052f | 1185 | } |
05227b51 PB |
1186 | if (fstat (inf_fd, &sbuf) < 0) |
1187 | { | |
1188 | fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]); | |
1189 | perror (NULL); | |
2e3f9f3d | 1190 | exit (FATAL_EXIT_CODE); |
05227b51 PB |
1191 | } |
1192 | inf_size = sbuf.st_size; | |
0f41302f | 1193 | inf_buffer = (char *) xmalloc (inf_size + 2); |
05227b51 PB |
1194 | inf_buffer[inf_size] = '\n'; |
1195 | inf_buffer[inf_size + 1] = '\0'; | |
1196 | inf_limit = inf_buffer + inf_size; | |
1197 | inf_ptr = inf_buffer; | |
1198 | ||
1199 | to_read = inf_size; | |
1200 | while (to_read > 0) | |
1201 | { | |
1202 | long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read); | |
1203 | if (i < 0) | |
1204 | { | |
1205 | fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]); | |
1206 | perror (NULL); | |
2e3f9f3d | 1207 | exit (FATAL_EXIT_CODE); |
05227b51 PB |
1208 | } |
1209 | if (i == 0) | |
1210 | { | |
1211 | inf_size -= to_read; | |
1212 | break; | |
1213 | } | |
1214 | to_read -= i; | |
1215 | } | |
1216 | ||
1217 | close (inf_fd); | |
7936052f | 1218 | |
0f41302f | 1219 | /* If file doesn't end with '\n', add one. */ |
c2b6b9a1 RS |
1220 | if (inf_limit > inf_buffer && inf_limit[-1] != '\n') |
1221 | inf_limit++; | |
1222 | ||
9bbd1091 | 1223 | unlink (argv[3]); |
7936052f PB |
1224 | outf = fopen (argv[3], "w"); |
1225 | if (outf == NULL) | |
1226 | { | |
1227 | fprintf (stderr, "%s: Cannot open '%s' for writing -", | |
1228 | progname, argv[3]); | |
1229 | perror (NULL); | |
2e3f9f3d | 1230 | exit (FATAL_EXIT_CODE); |
7936052f PB |
1231 | } |
1232 | ||
05227b51 PB |
1233 | lineno = 1; |
1234 | ||
1235 | if (check_protection (&ifndef_line, &endif_line)) | |
7936052f | 1236 | { |
7936052f PB |
1237 | lbrac_line = ifndef_line+1; |
1238 | rbrac_line = endif_line; | |
1239 | } | |
1240 | else | |
1241 | { | |
1242 | lbrac_line = 1; | |
1243 | rbrac_line = -1; | |
1244 | } | |
1245 | ||
0f41302f | 1246 | /* Reset input file. */ |
05227b51 | 1247 | inf_ptr = inf_buffer; |
7936052f PB |
1248 | lineno = 1; |
1249 | ||
1250 | for (;;) | |
1251 | { | |
1252 | if (lineno == lbrac_line) | |
1253 | write_lbrac (); | |
1254 | if (lineno == rbrac_line) | |
1255 | write_rbrac (); | |
1256 | for (;;) | |
1257 | { | |
1258 | struct fn_decl *fn; | |
c2b6b9a1 | 1259 | c = INF_GET (); |
7936052f PB |
1260 | if (c == EOF) |
1261 | break; | |
e9a780ec | 1262 | if (ISALPHA (c) || c == '_') |
7936052f | 1263 | { |
05227b51 | 1264 | c = inf_scan_ident (&buf, c); |
081f5e7e | 1265 | (void) INF_UNGET (c); |
7936052f | 1266 | fputs (buf.base, outf); |
b3ca463c | 1267 | fn = lookup_std_proto (buf.base, strlen (buf.base)); |
7936052f PB |
1268 | /* We only want to edit the declaration matching the one |
1269 | seen by scan-decls, as there can be multiple | |
0f41302f | 1270 | declarations, selected by #ifdef __STDC__ or whatever. */ |
7936052f PB |
1271 | if (fn && fn->partial && fn->partial->line_seen == lineno) |
1272 | { | |
05227b51 | 1273 | c = inf_skip_spaces (' '); |
7936052f PB |
1274 | if (c == EOF) |
1275 | break; | |
1276 | if (c == '(') | |
1277 | { | |
05227b51 | 1278 | c = inf_skip_spaces (' '); |
7936052f PB |
1279 | if (c == ')') |
1280 | { | |
1281 | fprintf (outf, " _PARAMS((%s))", fn->params); | |
1282 | } | |
1283 | else | |
1284 | { | |
1285 | putc ('(', outf); | |
081f5e7e | 1286 | (void) INF_UNGET (c); |
7936052f PB |
1287 | } |
1288 | } | |
1289 | else | |
e9cd0b25 | 1290 | fprintf (outf, " %c", c); |
7936052f PB |
1291 | } |
1292 | } | |
1293 | else | |
05227b51 PB |
1294 | { |
1295 | putc (c, outf); | |
1296 | if (c == '\n') | |
1297 | break; | |
1298 | } | |
7936052f PB |
1299 | } |
1300 | if (c == EOF) | |
1301 | break; | |
1302 | lineno++; | |
1303 | } | |
1304 | if (rbrac_line < 0) | |
1305 | write_rbrac (); | |
1306 | ||
7936052f PB |
1307 | fclose (outf); |
1308 | ||
1309 | return 0; | |
1310 | } | |
b3ca463c | 1311 | \f |
487a6e06 KG |
1312 | |
1313 | static void | |
1314 | v_fatal (str, ap) | |
1315 | const char * str; | |
1316 | va_list ap; | |
b3ca463c | 1317 | { |
ebc27362 | 1318 | fprintf (stderr, "%s: %s: ", progname, inc_filename); |
487a6e06 | 1319 | vfprintf (stderr, str, ap); |
b3ca463c | 1320 | fprintf (stderr, "\n"); |
487a6e06 | 1321 | |
3efba298 | 1322 | exit (FATAL_EXIT_CODE); |
b3ca463c PB |
1323 | } |
1324 | ||
bcc5cac9 | 1325 | static void |
711d877c | 1326 | fatal VPARAMS ((const char *str, ...)) |
c57a4b7c | 1327 | { |
5148a72b | 1328 | #ifndef ANSI_PROTOTYPES |
487a6e06 KG |
1329 | const char *str; |
1330 | #endif | |
1331 | va_list ap; | |
1332 | ||
1333 | VA_START(ap, str); | |
1334 | ||
5148a72b | 1335 | #ifndef ANSI_PROTOTYPES |
487a6e06 KG |
1336 | str = va_arg (ap, const char *); |
1337 | #endif | |
1338 | ||
1339 | v_fatal(str, ap); | |
1340 | va_end(ap); | |
1341 | } |