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be1d818d | 1 | /* fix-header.c - Make C header file suitable for C++. |
cf402459 | 2 | Copyright (C) 1993, 94-98, 1999 Free Software Foundation, Inc. |
41f8c0bb | 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 | |
a372a482 | 16 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
41f8c0bb | 17 | |
18 | /* This program massages a system include file (such as stdio.h), | |
65ba74c3 | 19 | into a form that is compatible with GNU C and GNU C++. |
41f8c0bb | 20 | |
21 | * extern "C" { ... } braces are added (inside #ifndef __cplusplus), | |
a2075ffb | 22 | if they seem to be needed. These prevent C++ compilers from name |
41f8c0bb | 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 | |
73439ee0 | 29 | the empty parameter list with the argument list from sys-protos.h. |
41f8c0bb | 30 | |
31 | * The program can be given a list of (names of) required standard | |
c3418f42 | 32 | functions (such as fclose for stdio.h). If a required function |
41f8c0bb | 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: | |
ff8281e4 | 62 | fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS] |
41f8c0bb | 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) | |
ff8281e4 | 69 | * OPTIONS are such as you would pass to cpp. |
41f8c0bb | 70 | |
a92771b8 | 71 | Written by Per Bothner <bothner@cygnus.com>, July 1993. */ |
41f8c0bb | 72 | |
59fb2f64 | 73 | #include "hconfig.h" |
1486870d | 74 | #include "system.h" |
41f8c0bb | 75 | #include "obstack.h" |
76 | #include "scan.h" | |
ff8281e4 | 77 | #include "cpplib.h" |
0e93a6ac | 78 | #include "cpphash.h" |
072eca60 | 79 | |
bbe68b80 | 80 | static void v_fatal PROTO ((const char *, va_list)) ATTRIBUTE_NORETURN; |
81 | void fatal PVPROTO ((const char *, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; | |
e7399c76 | 82 | |
ff8281e4 | 83 | sstring buf; |
58e13b61 | 84 | |
41f8c0bb | 85 | int verbose = 0; |
86 | int partial_count = 0; | |
ff8281e4 | 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 | |
41f8c0bb | 94 | int missing_extern_C_count = 0; |
d9730104 | 95 | #endif |
41f8c0bb | 96 | |
97 | #include "xsys-protos.h" | |
98 | ||
ff8281e4 | 99 | #ifdef FIXPROTO_IGNORE_LIST |
a92771b8 | 100 | /* This is a currently unused feature. */ |
ff8281e4 | 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 | ||
a2075ffb | 114 | char *inf_buffer; |
115 | char *inf_limit; | |
116 | char *inf_ptr; | |
a2075ffb | 117 | |
41f8c0bb | 118 | /* Certain standard files get extra treatment */ |
119 | ||
120 | enum special_file | |
121 | { | |
122 | no_special, | |
1df3cafa | 123 | #ifdef errno_h |
124 | #undef errno_h | |
125 | #endif | |
ff8281e4 | 126 | errno_h, |
1df3cafa | 127 | #ifdef stdio_h |
128 | #undef stdio_h | |
129 | #endif | |
ff8281e4 | 130 | stdio_h, |
1df3cafa | 131 | #ifdef stdlib_h |
132 | #undef stdlib_h | |
133 | #endif | |
a4cfa7e7 | 134 | stdlib_h, |
1df3cafa | 135 | #ifdef sys_stat_h |
136 | #undef sys_stat_h | |
137 | #endif | |
ff8281e4 | 138 | sys_stat_h |
139 | }; | |
140 | ||
141 | /* A NAMELIST is a sequence of names, separated by '\0', and terminated | |
a92771b8 | 142 | by an empty name (i.e. by "\0\0"). */ |
ff8281e4 | 143 | |
a92771b8 | 144 | typedef const char *namelist; |
ff8281e4 | 145 | |
a92771b8 | 146 | /* The following macros provide the bits for symbol_flags. */ |
b833afc8 | 147 | typedef int symbol_flags; |
148 | ||
a92771b8 | 149 | /* Used to mark names defined in the ANSI/ISO C standard. */ |
b833afc8 | 150 | #define ANSI_SYMBOL 1 |
151 | ||
65ba74c3 | 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 | |
a92771b8 | 160 | /* Used to mark names defined in the Posix.1 or Posix.2 standard. */ |
b833afc8 | 161 | #define POSIX1_SYMBOL 2 |
162 | #define POSIX2_SYMBOL 4 | |
65ba74c3 | 163 | #else |
164 | #define POSIX1_SYMBOL 0 | |
165 | #define POSIX2_SYMBOL 0 | |
166 | #endif | |
b833afc8 | 167 | |
65ba74c3 | 168 | #if ADD_MISSING_XOPEN |
a92771b8 | 169 | /* Used to mark names defined in X/Open Portability Guide. */ |
a4cfa7e7 | 170 | #define XOPEN_SYMBOL 8 |
a92771b8 | 171 | /* Used to mark names defined in X/Open UNIX Extensions. */ |
a4cfa7e7 | 172 | #define XOPEN_EXTENDED_SYMBOL 16 |
65ba74c3 | 173 | #else |
174 | #define XOPEN_SYMBOL 0 | |
175 | #define XOPEN_EXTENDED_SYMBOL 0 | |
176 | #endif | |
a4cfa7e7 | 177 | |
b833afc8 | 178 | /* Used to indicate names that are not functions */ |
a4cfa7e7 | 179 | #define MACRO_SYMBOL 512 |
b833afc8 | 180 | |
181 | struct symbol_list { | |
182 | symbol_flags flags; | |
183 | namelist names; | |
ff8281e4 | 184 | }; |
185 | ||
b833afc8 | 186 | #define SYMBOL_TABLE_SIZE 10 |
187 | struct symbol_list symbol_table[SYMBOL_TABLE_SIZE]; | |
188 | int cur_symbol_table_size; | |
ff8281e4 | 189 | |
b833afc8 | 190 | void |
191 | add_symbols (flags, names) | |
192 | symbol_flags flags; | |
ff8281e4 | 193 | namelist names; |
194 | { | |
b833afc8 | 195 | symbol_table[cur_symbol_table_size].flags = flags; |
196 | symbol_table[cur_symbol_table_size].names = names; | |
197 | cur_symbol_table_size++; | |
198 | if (cur_symbol_table_size >= SYMBOL_TABLE_SIZE) | |
199 | fatal ("too many calls to add_symbols"); | |
a92771b8 | 200 | symbol_table[cur_symbol_table_size].names = NULL; /* Termination. */ |
ff8281e4 | 201 | } |
202 | ||
b833afc8 | 203 | struct std_include_entry { |
204 | const char *name; | |
205 | symbol_flags flags; | |
206 | namelist names; | |
207 | }; | |
208 | ||
a92771b8 | 209 | const char NONE[] = ""; /* The empty namelist. */ |
b833afc8 | 210 | |
a92771b8 | 211 | /* Special name to indicate a continuation line in std_include_table. */ |
b833afc8 | 212 | const char CONTINUED[] = ""; |
ff8281e4 | 213 | |
214 | struct std_include_entry *include_entry; | |
215 | ||
216 | struct std_include_entry std_include_table [] = { | |
b833afc8 | 217 | { "ctype.h", ANSI_SYMBOL, |
ff8281e4 | 218 | "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\ |
b833afc8 | 219 | isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0" }, |
ff8281e4 | 220 | |
b833afc8 | 221 | { "dirent.h", POSIX1_SYMBOL, "closedir\0opendir\0readdir\0rewinddir\0"}, |
ff8281e4 | 222 | |
b833afc8 | 223 | { "errno.h", ANSI_SYMBOL|MACRO_SYMBOL, "errno\0" }, |
ff8281e4 | 224 | |
a92771b8 | 225 | /* ANSI_SYMBOL is wrong, but ... */ |
b833afc8 | 226 | { "curses.h", ANSI_SYMBOL, "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\ |
ff8281e4 | 227 | mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\ |
228 | scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\ | |
229 | waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\ | |
b833afc8 | 230 | wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0" }, |
ff8281e4 | 231 | |
b833afc8 | 232 | { "fcntl.h", POSIX1_SYMBOL, "creat\0fcntl\0open\0" }, |
ff8281e4 | 233 | |
234 | /* Maybe also "getgrent fgetgrent setgrent endgrent" */ | |
b833afc8 | 235 | { "grp.h", POSIX1_SYMBOL, "getgrgid\0getgrnam\0" }, |
ff8281e4 | 236 | |
237 | /*{ "limit.h", ... provided by gcc }, */ | |
238 | ||
b833afc8 | 239 | { "locale.h", ANSI_SYMBOL, "localeconv\0setlocale\0" }, |
ff8281e4 | 240 | |
b833afc8 | 241 | { "math.h", ANSI_SYMBOL, |
242 | "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\ | |
ff8281e4 | 243 | fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\ |
b833afc8 | 244 | tan\0tanh\0" }, |
245 | ||
246 | { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "HUGE_VAL\0" }, | |
ff8281e4 | 247 | |
b833afc8 | 248 | { "pwd.h", POSIX1_SYMBOL, "getpwnam\0getpwuid\0" }, |
ff8281e4 | 249 | |
a92771b8 | 250 | /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */ |
b833afc8 | 251 | { "setjmp.h", ANSI_SYMBOL, "longjmp\0setjmp\0" }, |
ff8281e4 | 252 | |
253 | /* Left out signal() - its prototype is too complex for us! | |
254 | Also left out "sigaction sigaddset sigdelset sigemptyset | |
255 | sigfillset sigismember sigpending sigprocmask sigsuspend" | |
256 | because these need sigset_t or struct sigaction. | |
a92771b8 | 257 | Most systems that provide them will also declare them. */ |
b833afc8 | 258 | { "signal.h", ANSI_SYMBOL, "kill\0raise\0" }, |
ff8281e4 | 259 | |
b833afc8 | 260 | { "stdio.h", ANSI_SYMBOL, |
261 | "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\ | |
ff8281e4 | 262 | fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\ |
65ba74c3 | 263 | fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0perror\0\ |
ff8281e4 | 264 | printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\ |
265 | setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\ | |
b833afc8 | 266 | tmpnam\0ungetc\0" }, |
267 | { CONTINUED, POSIX1_SYMBOL, "fdopen\0fileno\0" }, | |
a92771b8 | 268 | { CONTINUED, POSIX2_SYMBOL, "pclose\0popen\0" }, /* I think ... */ |
ff8281e4 | 269 | /* Should perhaps also handle NULL, EOF, ... ? */ |
270 | ||
271 | /* "div ldiv", - ignored because these depend on div_t, ldiv_t | |
272 | ignore these: "mblen mbstowcs mbstowc wcstombs wctomb" | |
273 | Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions. | |
274 | Should perhaps also add NULL */ | |
b833afc8 | 275 | { "stdlib.h", ANSI_SYMBOL, |
276 | "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\ | |
ff8281e4 | 277 | exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\ |
b833afc8 | 278 | srand\0strtod\0strtol\0strtoul\0system\0" }, |
a4cfa7e7 | 279 | { CONTINUED, ANSI_SYMBOL|MACRO_SYMBOL, "EXIT_FAILURE\0EXIT_SUCCESS\0" }, |
ff8281e4 | 280 | |
b833afc8 | 281 | { "string.h", ANSI_SYMBOL, "memchr\0memcmp\0memcpy\0memmove\0memset\0\ |
ff8281e4 | 282 | strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\ |
283 | strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\ | |
b833afc8 | 284 | strtok\0strxfrm\0" }, |
ff8281e4 | 285 | /* Should perhaps also add NULL and size_t */ |
286 | ||
a4cfa7e7 | 287 | { "strings.h", XOPEN_EXTENDED_SYMBOL, |
288 | "bcmp\0bcopy\0bzero\0ffs\0index\0rindex\0strcasecmp\0strncasecmp\0" }, | |
289 | ||
290 | { "strops.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, | |
291 | ||
292 | /* Actually, XPG4 does not seem to have <sys/ioctl.h>, but defines | |
293 | ioctl in <strops.h>. However, many systems have it is sys/ioctl.h, | |
a92771b8 | 294 | and many systems do have <sys/ioctl.h> but not <strops.h>. */ |
a4cfa7e7 | 295 | { "sys/ioctl.h", XOPEN_EXTENDED_SYMBOL, "ioctl\0" }, |
296 | ||
297 | { "sys/socket.h", XOPEN_EXTENDED_SYMBOL, "socket\0" }, | |
298 | ||
b833afc8 | 299 | { "sys/stat.h", POSIX1_SYMBOL, |
300 | "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0" }, | |
301 | { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, | |
ff8281e4 | 302 | "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\ |
303 | S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" }, | |
a4cfa7e7 | 304 | { CONTINUED, XOPEN_EXTENDED_SYMBOL, "fchmod\0" }, |
305 | ||
306 | #if 0 | |
307 | /* How do we handle fd_set? */ | |
308 | { "sys/time.h", XOPEN_EXTENDED_SYMBOL, "select\0" }, | |
309 | { "sys/select.h", XOPEN_EXTENDED_SYMBOL /* fake */, "select\0" }, | |
310 | #endif | |
ff8281e4 | 311 | |
b833afc8 | 312 | { "sys/times.h", POSIX1_SYMBOL, "times\0" }, |
ff8281e4 | 313 | /* "sys/types.h" add types (not in old g++-include) */ |
314 | ||
b833afc8 | 315 | { "sys/utsname.h", POSIX1_SYMBOL, "uname\0" }, |
ff8281e4 | 316 | |
b833afc8 | 317 | { "sys/wait.h", POSIX1_SYMBOL, "wait\0waitpid\0" }, |
318 | { CONTINUED, POSIX1_SYMBOL|MACRO_SYMBOL, | |
ff8281e4 | 319 | "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\ |
320 | WTERMSIG\0WNOHANG\0WNOTRACED\0" }, | |
321 | ||
b833afc8 | 322 | { "tar.h", POSIX1_SYMBOL, NONE }, |
ff8281e4 | 323 | |
b833afc8 | 324 | { "termios.h", POSIX1_SYMBOL, |
325 | "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0" }, | |
ff8281e4 | 326 | |
b833afc8 | 327 | { "time.h", ANSI_SYMBOL, |
328 | "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0" }, | |
ff8281e4 | 329 | |
b833afc8 | 330 | { "unistd.h", POSIX1_SYMBOL, |
331 | "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\ | |
ff8281e4 | 332 | dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\ |
b833afc8 | 333 | getcwd\0getegid\0geteuid\0getgid\0getlogin\0getpgrp\0getpid\0\ |
ff8281e4 | 334 | getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\ |
335 | setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\ | |
b833afc8 | 336 | ttyname\0unlink\0write\0" }, |
337 | { CONTINUED, POSIX2_SYMBOL, "getopt\0" }, | |
a4cfa7e7 | 338 | { CONTINUED, XOPEN_EXTENDED_SYMBOL, |
0b3436f1 | 339 | "lockf\0gethostid\0gethostname\0readlink\0symlink\0" }, |
a4cfa7e7 | 340 | |
341 | { "utime.h", POSIX1_SYMBOL, "utime\0" }, | |
ff8281e4 | 342 | |
b833afc8 | 343 | { NULL, 0, NONE } |
41f8c0bb | 344 | }; |
345 | ||
346 | enum special_file special_file_handling = no_special; | |
347 | ||
a92771b8 | 348 | /* They are set if the corresponding macro has been seen. */ |
a4cfa7e7 | 349 | /* The following are only used when handling sys/stat.h */ |
41f8c0bb | 350 | int seen_S_IFBLK = 0, seen_S_ISBLK = 0; |
351 | int seen_S_IFCHR = 0, seen_S_ISCHR = 0; | |
352 | int seen_S_IFDIR = 0, seen_S_ISDIR = 0; | |
353 | int seen_S_IFIFO = 0, seen_S_ISFIFO = 0; | |
354 | int seen_S_IFLNK = 0, seen_S_ISLNK = 0; | |
355 | int seen_S_IFREG = 0, seen_S_ISREG = 0; | |
a4cfa7e7 | 356 | /* The following are only used when handling errno.h */ |
357 | int seen_errno = 0; | |
358 | /* The following are only used when handling stdlib.h */ | |
359 | int seen_EXIT_FAILURE = 0, seen_EXIT_SUCCESS = 0; | |
54244b90 | 360 | \f |
a92771b8 | 361 | /* Wrapper around free, to avoid prototype clashes. */ |
41f8c0bb | 362 | |
54244b90 | 363 | void |
364 | xfree (ptr) | |
41f8c0bb | 365 | char *ptr; |
366 | { | |
9ebdb4ae | 367 | free (ptr); |
41f8c0bb | 368 | } |
369 | ||
54244b90 | 370 | /* Avoid error if config defines abort as fancy_abort. |
371 | It's not worth "really" implementing this because ordinary | |
372 | compiler users never run fix-header. */ | |
373 | ||
374 | void | |
375 | fancy_abort () | |
376 | { | |
377 | abort (); | |
378 | } | |
379 | \f | |
41f8c0bb | 380 | #define obstack_chunk_alloc xmalloc |
381 | #define obstack_chunk_free xfree | |
382 | struct obstack scan_file_obstack; | |
383 | ||
384 | /* NOTE: If you edit this, also edit gen-protos.c !! */ | |
a92771b8 | 385 | |
41f8c0bb | 386 | struct fn_decl * |
ff8281e4 | 387 | lookup_std_proto (name, name_length) |
388 | const char *name; | |
389 | int name_length; | |
41f8c0bb | 390 | { |
ff8281e4 | 391 | int i = hashf (name, name_length, HASH_SIZE); |
41f8c0bb | 392 | int i0 = i; |
393 | for (;;) | |
394 | { | |
395 | struct fn_decl *fn; | |
396 | if (hash_tab[i] == 0) | |
397 | return NULL; | |
398 | fn = &std_protos[hash_tab[i]]; | |
ba1c8484 | 399 | if ((int) strlen (fn->fname) == name_length |
ff8281e4 | 400 | && strncmp (fn->fname, name, name_length) == 0) |
41f8c0bb | 401 | return fn; |
402 | i = (i+1) % HASH_SIZE; | |
403 | if (i == i0) | |
9ebdb4ae | 404 | abort (); |
41f8c0bb | 405 | } |
406 | } | |
407 | ||
408 | char *inc_filename; | |
409 | int inc_filename_length; | |
be1d818d | 410 | char *progname = "fix-header"; |
41f8c0bb | 411 | FILE *outf; |
41f8c0bb | 412 | sstring line; |
413 | ||
414 | int lbrac_line, rbrac_line; | |
415 | ||
ff8281e4 | 416 | int required_unseen_count = 0; |
a4cfa7e7 | 417 | int required_other = 0; |
41f8c0bb | 418 | |
2b513c70 | 419 | void |
41f8c0bb | 420 | write_lbrac () |
421 | { | |
fd2e14b3 | 422 | |
ff8281e4 | 423 | #if ADD_MISSING_EXTERN_C |
fd2e14b3 | 424 | if (missing_extern_C_count + required_unseen_count > 0) |
425 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); | |
d9730104 | 426 | #endif |
41f8c0bb | 427 | |
428 | if (partial_count) | |
429 | { | |
430 | fprintf (outf, "#ifndef _PARAMS\n"); | |
431 | fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n"); | |
432 | fprintf (outf, "#define _PARAMS(ARGS) ARGS\n"); | |
433 | fprintf (outf, "#else\n"); | |
434 | fprintf (outf, "#define _PARAMS(ARGS) ()\n"); | |
435 | fprintf (outf, "#endif\n#endif /* _PARAMS */\n"); | |
436 | } | |
437 | } | |
438 | ||
439 | struct partial_proto | |
440 | { | |
441 | struct partial_proto *next; | |
442 | char *fname; /* name of function */ | |
443 | char *rtype; /* return type */ | |
444 | struct fn_decl *fn; | |
445 | int line_seen; | |
446 | }; | |
447 | ||
448 | struct partial_proto *partial_proto_list = NULL; | |
449 | ||
ff8281e4 | 450 | struct partial_proto required_dummy_proto, seen_dummy_proto; |
41f8c0bb | 451 | #define REQUIRED(FN) ((FN)->partial == &required_dummy_proto) |
452 | #define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto) | |
ff8281e4 | 453 | #define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto) |
454 | #define SEEN(FN) ((FN)->partial == &seen_dummy_proto) | |
41f8c0bb | 455 | |
456 | void | |
a2075ffb | 457 | recognized_macro (fname) |
458 | char *fname; | |
41f8c0bb | 459 | { |
a92771b8 | 460 | /* The original include file defines fname as a macro. */ |
ff8281e4 | 461 | struct fn_decl *fn = lookup_std_proto (fname, strlen (fname)); |
41f8c0bb | 462 | |
a92771b8 | 463 | /* Since fname is a macro, don't require a prototype for it. */ |
ff8281e4 | 464 | if (fn) |
41f8c0bb | 465 | { |
ff8281e4 | 466 | if (REQUIRED (fn)) |
467 | required_unseen_count--; | |
468 | SET_SEEN (fn); | |
a2075ffb | 469 | } |
41f8c0bb | 470 | |
a2075ffb | 471 | switch (special_file_handling) |
472 | { | |
ff8281e4 | 473 | case errno_h: |
a4cfa7e7 | 474 | if (strcmp (fname, "errno") == 0 && !seen_errno) |
475 | seen_errno = 1, required_other--; | |
476 | break; | |
477 | case stdlib_h: | |
478 | if (strcmp (fname, "EXIT_FAILURE") == 0 && !seen_EXIT_FAILURE) | |
479 | seen_EXIT_FAILURE = 1, required_other--; | |
480 | if (strcmp (fname, "EXIT_SUCCESS") == 0 && !seen_EXIT_SUCCESS) | |
481 | seen_EXIT_SUCCESS = 1, required_other--; | |
a2075ffb | 482 | break; |
ff8281e4 | 483 | case sys_stat_h: |
a2075ffb | 484 | if (fname[0] == 'S' && fname[1] == '_') |
41f8c0bb | 485 | { |
a2075ffb | 486 | if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++; |
487 | else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++; | |
488 | else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++; | |
489 | else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++; | |
490 | else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++; | |
491 | else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++; | |
492 | else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++; | |
493 | else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++; | |
494 | else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++; | |
495 | else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++; | |
496 | else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++; | |
497 | else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++; | |
41f8c0bb | 498 | } |
65ba74c3 | 499 | break; |
500 | ||
501 | default: | |
502 | break; | |
a2075ffb | 503 | } |
504 | } | |
41f8c0bb | 505 | |
a2075ffb | 506 | void |
ff8281e4 | 507 | recognized_extern (name, name_length, type, type_length) |
a2075ffb | 508 | char *name; |
509 | char *type; | |
ff8281e4 | 510 | int name_length, type_length; |
a2075ffb | 511 | { |
512 | switch (special_file_handling) | |
513 | { | |
ff8281e4 | 514 | case errno_h: |
65ba74c3 | 515 | if (name_length == 5 && strncmp (name, "errno", 5) == 0 && !seen_errno) |
a4cfa7e7 | 516 | seen_errno = 1, required_other--; |
a2075ffb | 517 | break; |
65ba74c3 | 518 | |
519 | default: | |
520 | break; | |
a2075ffb | 521 | } |
522 | } | |
41f8c0bb | 523 | |
a2075ffb | 524 | /* Called by scan_decls if it saw a function definition for a function |
525 | named FNAME, with return type RTYPE, and argument list ARGS, | |
526 | in source file FILE_SEEN on line LINE_SEEN. | |
527 | KIND is 'I' for an inline function; | |
528 | 'F' if a normal function declaration preceded by 'extern "C"' | |
529 | (or nested inside 'extern "C"' braces); or | |
a92771b8 | 530 | 'f' for other function declarations. */ |
41f8c0bb | 531 | |
a2075ffb | 532 | void |
ff8281e4 | 533 | recognized_function (fname, fname_length, |
534 | kind, rtype, rtype_length, | |
535 | have_arg_list, file_seen, line_seen) | |
a2075ffb | 536 | char *fname; |
ff8281e4 | 537 | int fname_length; |
a2075ffb | 538 | int kind; /* One of 'f' 'F' or 'I' */ |
539 | char *rtype; | |
ff8281e4 | 540 | int rtype_length; |
541 | int have_arg_list; | |
a2075ffb | 542 | char *file_seen; |
543 | int line_seen; | |
544 | { | |
545 | struct partial_proto *partial; | |
546 | int i; | |
547 | struct fn_decl *fn; | |
ff8281e4 | 548 | #if ADD_MISSING_EXTERN_C |
a2075ffb | 549 | if (kind == 'f') |
550 | missing_extern_C_count++; | |
d9730104 | 551 | #endif |
41f8c0bb | 552 | |
ff8281e4 | 553 | fn = lookup_std_proto (fname, fname_length); |
41f8c0bb | 554 | |
a92771b8 | 555 | /* Remove the function from the list of required function. */ |
ff8281e4 | 556 | if (fn) |
a2075ffb | 557 | { |
ff8281e4 | 558 | if (REQUIRED (fn)) |
559 | required_unseen_count--; | |
560 | SET_SEEN (fn); | |
a2075ffb | 561 | } |
f8b1eeaa | 562 | |
a92771b8 | 563 | /* If we have a full prototype, we're done. */ |
ff8281e4 | 564 | if (have_arg_list) |
a2075ffb | 565 | return; |
566 | ||
567 | if (kind == 'I') /* don't edit inline function */ | |
568 | return; | |
569 | ||
570 | /* If the partial prototype was included from some other file, | |
a92771b8 | 571 | we don't need to patch it up (in this run). */ |
a2075ffb | 572 | i = strlen (file_seen); |
573 | if (i < inc_filename_length | |
574 | || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0) | |
575 | return; | |
576 | ||
577 | if (fn == NULL) | |
578 | return; | |
9ebdb4ae | 579 | if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0) |
a2075ffb | 580 | return; |
581 | ||
582 | /* We only have a partial function declaration, | |
a92771b8 | 583 | so remember that we have to add a complete prototype. */ |
a2075ffb | 584 | partial_count++; |
a92771b8 | 585 | partial = (struct partial_proto *) |
9ebdb4ae | 586 | obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto)); |
ff8281e4 | 587 | partial->fname = obstack_alloc (&scan_file_obstack, fname_length + 1); |
588 | bcopy (fname, partial->fname, fname_length); | |
589 | partial->fname[fname_length] = 0; | |
590 | partial->rtype = obstack_alloc (&scan_file_obstack, rtype_length + 1); | |
591 | sprintf (partial->rtype, "%.*s", rtype_length, rtype); | |
a2075ffb | 592 | partial->line_seen = line_seen; |
593 | partial->fn = fn; | |
594 | fn->partial = partial; | |
595 | partial->next = partial_proto_list; | |
596 | partial_proto_list = partial; | |
597 | if (verbose) | |
598 | { | |
599 | fprintf (stderr, "(%s: %s non-prototype function declaration.)\n", | |
ff8281e4 | 600 | inc_filename, partial->fname); |
601 | } | |
602 | } | |
603 | ||
604 | /* For any name in NAMES that is defined as a macro, | |
a92771b8 | 605 | call recognized_macro on it. */ |
ff8281e4 | 606 | |
607 | void | |
608 | check_macro_names (pfile, names) | |
307ea935 | 609 | cpp_reader *pfile; |
ff8281e4 | 610 | namelist names; |
611 | { | |
612 | while (*names) | |
613 | { | |
614 | if (cpp_lookup (pfile, names, -1, -1)) | |
615 | recognized_macro (names); | |
616 | names += strlen (names) + 1; | |
a2075ffb | 617 | } |
618 | } | |
41f8c0bb | 619 | |
a2075ffb | 620 | void |
ff8281e4 | 621 | read_scan_file (in_fname, argc, argv) |
622 | char *in_fname; | |
623 | int argc; | |
624 | char **argv; | |
a2075ffb | 625 | { |
ff8281e4 | 626 | cpp_reader scan_in; |
627 | cpp_options scan_options; | |
628 | struct fn_decl *fn; | |
629 | int i; | |
b833afc8 | 630 | register struct symbol_list *cur_symbols; |
ff8281e4 | 631 | |
9ebdb4ae | 632 | obstack_init (&scan_file_obstack); |
41f8c0bb | 633 | |
307ea935 | 634 | cpp_reader_init (&scan_in); |
e2fba115 | 635 | scan_in.opts = &scan_options; |
307ea935 | 636 | cpp_options_init (&scan_options); |
ff8281e4 | 637 | i = cpp_handle_options (&scan_in, argc, argv); |
e7399c76 | 638 | if (i < argc && ! CPP_FATAL_ERRORS (&scan_in)) |
307ea935 | 639 | cpp_fatal (&scan_in, "Invalid option `%s'", argv[i]); |
e7399c76 | 640 | if (CPP_FATAL_ERRORS (&scan_in)) |
307ea935 | 641 | exit (FATAL_EXIT_CODE); |
642 | ||
643 | if (! cpp_start_read (&scan_in, in_fname)) | |
644 | exit (FATAL_EXIT_CODE); | |
ff8281e4 | 645 | CPP_OPTIONS (&scan_in)->no_line_commands = 1; |
646 | ||
647 | scan_decls (&scan_in, argc, argv); | |
b833afc8 | 648 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
649 | check_macro_names (&scan_in, cur_symbols->names); | |
ff8281e4 | 650 | |
651 | if (verbose && (scan_in.errors + warnings) > 0) | |
652 | fprintf (stderr, "(%s: %d errors and %d warnings from cpp)\n", | |
653 | inc_filename, scan_in.errors, warnings); | |
654 | if (scan_in.errors) | |
a5659160 | 655 | exit (SUCCESS_EXIT_CODE); |
ff8281e4 | 656 | |
657 | /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf. | |
a92771b8 | 658 | If so, those functions are also required. */ |
ff8281e4 | 659 | if (special_file_handling == stdio_h |
660 | && (fn = lookup_std_proto ("_filbuf", 7)) != NULL) | |
661 | { | |
662 | static char getchar_call[] = "getchar();"; | |
0bc644e0 | 663 | cpp_buffer *buf |
664 | = cpp_push_buffer (&scan_in, getchar_call, sizeof(getchar_call) - 1); | |
ff8281e4 | 665 | int old_written = CPP_WRITTEN (&scan_in); |
666 | int seen_filbuf = 0; | |
667 | ||
a92771b8 | 668 | /* Scan the macro expansion of "getchar();". */ |
ff8281e4 | 669 | for (;;) |
670 | { | |
671 | enum cpp_token token = cpp_get_token (&scan_in); | |
672 | int length = CPP_WRITTEN (&scan_in) - old_written; | |
673 | CPP_SET_WRITTEN (&scan_in, old_written); | |
a92771b8 | 674 | if (token == CPP_EOF) /* Should not happen ... */ |
ff8281e4 | 675 | break; |
676 | if (token == CPP_POP && CPP_BUFFER (&scan_in) == buf) | |
677 | { | |
678 | cpp_pop_buffer (&scan_in); | |
679 | break; | |
680 | } | |
681 | if (token == CPP_NAME && length == 7 | |
682 | && strcmp ("_filbuf", scan_in.token_buffer + old_written) == 0) | |
683 | seen_filbuf++; | |
684 | } | |
685 | if (seen_filbuf) | |
686 | { | |
687 | int need_filbuf = !SEEN (fn) && !REQUIRED (fn); | |
688 | struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7); | |
689 | int need_flsbuf | |
690 | = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn); | |
691 | ||
a92771b8 | 692 | /* Append "_filbuf" and/or "_flsbuf" to the required functions. */ |
ff8281e4 | 693 | if (need_filbuf + need_flsbuf) |
694 | { | |
a8482e91 | 695 | const char *new_list; |
ff8281e4 | 696 | if (need_filbuf) |
b833afc8 | 697 | SET_REQUIRED (fn); |
ff8281e4 | 698 | if (need_flsbuf) |
b833afc8 | 699 | SET_REQUIRED (flsbuf_fn); |
700 | if (need_flsbuf + need_filbuf == 2) | |
701 | new_list = "_filbuf\0_flsbuf\0"; | |
702 | else if (need_flsbuf) | |
703 | new_list = "_flsbuf\0"; | |
704 | else /* if (need_flsbuf) */ | |
705 | new_list = "_filbuf\0"; | |
706 | add_symbols (ANSI_SYMBOL, new_list); | |
ff8281e4 | 707 | required_unseen_count += need_filbuf + need_flsbuf; |
708 | } | |
709 | } | |
710 | } | |
41f8c0bb | 711 | |
a4cfa7e7 | 712 | if (required_unseen_count + partial_count + required_other |
ff8281e4 | 713 | #if ADD_MISSING_EXTERN_C |
d9730104 | 714 | + missing_extern_C_count |
715 | #endif | |
716 | == 0) | |
41f8c0bb | 717 | { |
718 | if (verbose) | |
719 | fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename); | |
a5659160 | 720 | exit (SUCCESS_EXIT_CODE); |
41f8c0bb | 721 | } |
f8b1eeaa | 722 | if (!verbose) |
723 | fprintf (stderr, "%s: fixing %s\n", progname, inc_filename); | |
724 | else | |
725 | { | |
726 | if (required_unseen_count) | |
727 | fprintf (stderr, "%s: %d missing function declarations.\n", | |
728 | inc_filename, required_unseen_count); | |
729 | if (partial_count) | |
730 | fprintf (stderr, "%s: %d non-prototype function declarations.\n", | |
731 | inc_filename, partial_count); | |
ff8281e4 | 732 | #if ADD_MISSING_EXTERN_C |
f8b1eeaa | 733 | if (missing_extern_C_count) |
734 | fprintf (stderr, | |
735 | "%s: %d declarations not protected by extern \"C\".\n", | |
736 | inc_filename, missing_extern_C_count); | |
d9730104 | 737 | #endif |
f8b1eeaa | 738 | } |
41f8c0bb | 739 | } |
740 | ||
2b513c70 | 741 | void |
41f8c0bb | 742 | write_rbrac () |
743 | { | |
744 | struct fn_decl *fn; | |
ff8281e4 | 745 | const char *cptr; |
b833afc8 | 746 | register struct symbol_list *cur_symbols; |
41f8c0bb | 747 | |
748 | if (required_unseen_count) | |
93aa68b4 | 749 | { |
93aa68b4 | 750 | #ifdef NO_IMPLICIT_EXTERN_C |
5062cdac | 751 | fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); |
93aa68b4 | 752 | #endif |
753 | } | |
41f8c0bb | 754 | |
a92771b8 | 755 | /* Now we print out prototypes for those functions that we haven't seen. */ |
b833afc8 | 756 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
41f8c0bb | 757 | { |
b833afc8 | 758 | int if_was_emitted = 0; |
759 | int name_len; | |
760 | cptr = cur_symbols->names; | |
761 | for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) | |
762 | { | |
763 | int macro_protect = 0; | |
54244b90 | 764 | |
b833afc8 | 765 | if (cur_symbols->flags & MACRO_SYMBOL) |
766 | continue; | |
767 | ||
768 | fn = lookup_std_proto (cptr, name_len); | |
769 | if (fn == NULL || !REQUIRED (fn)) | |
770 | continue; | |
771 | ||
772 | if (!if_was_emitted) | |
773 | { | |
774 | /* what about curses. ??? or _flsbuf/_filbuf ??? */ | |
775 | if (cur_symbols->flags & ANSI_SYMBOL) | |
776 | fprintf (outf, | |
777 | "#if defined(__USE_FIXED_PROTOTYPES__) || defined(__cplusplus) || defined (__STRICT_ANSI__)\n"); | |
a4cfa7e7 | 778 | else if (cur_symbols->flags & (POSIX1_SYMBOL|POSIX2_SYMBOL)) |
b833afc8 | 779 | fprintf (outf, |
780 | "#if defined(__USE_FIXED_PROTOTYPES__) || (defined(__cplusplus) \\\n\ | |
a4cfa7e7 | 781 | ? (!defined(__STRICT_ANSI__) || defined(_POSIX_SOURCE)) \\\n\ |
782 | : (defined(__STRICT_ANSI__) && defined(_POSIX_SOURCE)))\n"); | |
783 | else if (cur_symbols->flags & XOPEN_SYMBOL) | |
784 | { | |
785 | fprintf (outf, | |
786 | "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ | |
787 | || (defined(__STRICT_ANSI__) && defined(_XOPEN_SOURCE))\n"); | |
788 | } | |
789 | else if (cur_symbols->flags & XOPEN_EXTENDED_SYMBOL) | |
790 | { | |
791 | fprintf (outf, | |
792 | "#if defined(__USE_FIXED_PROTOTYPES__) \\\n\ | |
793 | || (defined(__STRICT_ANSI__) && defined(_XOPEN_EXTENDED_SOURCE))\n"); | |
794 | } | |
795 | else | |
796 | { | |
797 | fatal ("internal error for function %s", fn->fname); | |
798 | } | |
b833afc8 | 799 | if_was_emitted = 1; |
800 | } | |
54244b90 | 801 | |
b833afc8 | 802 | /* In the case of memmove, protect in case the application |
803 | defines it as a macro before including the header. */ | |
804 | if (!strcmp (fn->fname, "memmove") | |
805 | || !strcmp (fn->fname, "vprintf") | |
806 | || !strcmp (fn->fname, "vfprintf") | |
807 | || !strcmp (fn->fname, "vsprintf") | |
84d5a010 | 808 | || !strcmp (fn->fname, "rewinddir") |
809 | || !strcmp (fn->fname, "abort")) | |
b833afc8 | 810 | macro_protect = 1; |
811 | ||
812 | if (macro_protect) | |
813 | fprintf (outf, "#ifndef %s\n", fn->fname); | |
814 | fprintf (outf, "extern %s %s (%s);\n", | |
815 | fn->rtype, fn->fname, fn->params); | |
816 | if (macro_protect) | |
817 | fprintf (outf, "#endif\n"); | |
818 | } | |
819 | if (if_was_emitted) | |
820 | fprintf (outf, | |
821 | "#endif /* defined(__USE_FIXED_PROTOTYPES__) || ... */\n"); | |
41f8c0bb | 822 | } |
823 | if (required_unseen_count) | |
93aa68b4 | 824 | { |
825 | #ifdef NO_IMPLICIT_EXTERN_C | |
5062cdac | 826 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); |
93aa68b4 | 827 | #endif |
93aa68b4 | 828 | } |
41f8c0bb | 829 | |
830 | switch (special_file_handling) | |
831 | { | |
ff8281e4 | 832 | case errno_h: |
a4cfa7e7 | 833 | if (!seen_errno) |
41f8c0bb | 834 | fprintf (outf, "extern int errno;\n"); |
835 | break; | |
a4cfa7e7 | 836 | case stdlib_h: |
837 | if (!seen_EXIT_FAILURE) | |
838 | fprintf (outf, "#define EXIT_FAILURE 1\n"); | |
839 | if (!seen_EXIT_SUCCESS) | |
840 | fprintf (outf, "#define EXIT_SUCCESS 0\n"); | |
841 | break; | |
ff8281e4 | 842 | case sys_stat_h: |
41f8c0bb | 843 | if (!seen_S_ISBLK && seen_S_IFBLK) |
844 | fprintf (outf, | |
845 | "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n"); | |
846 | if (!seen_S_ISCHR && seen_S_IFCHR) | |
847 | fprintf (outf, | |
848 | "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n"); | |
849 | if (!seen_S_ISDIR && seen_S_IFDIR) | |
850 | fprintf (outf, | |
851 | "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n"); | |
852 | if (!seen_S_ISFIFO && seen_S_IFIFO) | |
853 | fprintf (outf, | |
854 | "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n"); | |
855 | if (!seen_S_ISLNK && seen_S_IFLNK) | |
856 | fprintf (outf, | |
857 | "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n"); | |
858 | if (!seen_S_ISREG && seen_S_IFREG) | |
859 | fprintf (outf, | |
860 | "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n"); | |
861 | break; | |
65ba74c3 | 862 | |
863 | default: | |
864 | break; | |
41f8c0bb | 865 | } |
866 | ||
867 | ||
ff8281e4 | 868 | #if ADD_MISSING_EXTERN_C |
fd2e14b3 | 869 | if (missing_extern_C_count + required_unseen_count > 0) |
870 | fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n"); | |
d9730104 | 871 | #endif |
41f8c0bb | 872 | } |
873 | ||
41f8c0bb | 874 | /* Returns 1 iff the file is properly protected from multiple inclusion: |
875 | #ifndef PROTECT_NAME | |
876 | #define PROTECT_NAME | |
877 | #endif | |
878 | ||
879 | */ | |
880 | ||
a92771b8 | 881 | #define INF_GET() (inf_ptr < inf_limit ? *(unsigned char *) inf_ptr++ : EOF) |
9ebdb4ae | 882 | #define INF_UNGET(c) ((c)!=EOF && inf_ptr--) |
a2075ffb | 883 | |
884 | int | |
885 | inf_skip_spaces (c) | |
886 | int c; | |
887 | { | |
888 | for (;;) | |
889 | { | |
890 | if (c == ' ' || c == '\t') | |
9ebdb4ae | 891 | c = INF_GET (); |
a2075ffb | 892 | else if (c == '/') |
893 | { | |
9ebdb4ae | 894 | c = INF_GET (); |
a2075ffb | 895 | if (c != '*') |
896 | { | |
73439ee0 | 897 | (void) INF_UNGET (c); |
a2075ffb | 898 | return '/'; |
899 | } | |
9ebdb4ae | 900 | c = INF_GET (); |
a2075ffb | 901 | for (;;) |
902 | { | |
903 | if (c == EOF) | |
904 | return EOF; | |
905 | else if (c != '*') | |
906 | { | |
907 | if (c == '\n') | |
908 | source_lineno++, lineno++; | |
909 | c = INF_GET (); | |
910 | } | |
9ebdb4ae | 911 | else if ((c = INF_GET ()) == '/') |
912 | return INF_GET (); | |
a2075ffb | 913 | } |
914 | } | |
915 | else | |
916 | break; | |
917 | } | |
918 | return c; | |
919 | } | |
920 | ||
a92771b8 | 921 | /* Read into STR from inf_buffer upto DELIM. */ |
a2075ffb | 922 | |
923 | int | |
924 | inf_read_upto (str, delim) | |
925 | sstring *str; | |
926 | int delim; | |
927 | { | |
928 | int ch; | |
929 | for (;;) | |
930 | { | |
931 | ch = INF_GET (); | |
932 | if (ch == EOF || ch == delim) | |
933 | break; | |
9ebdb4ae | 934 | SSTRING_PUT (str, ch); |
a2075ffb | 935 | } |
9ebdb4ae | 936 | MAKE_SSTRING_SPACE (str, 1); |
a2075ffb | 937 | *str->ptr = 0; |
938 | return ch; | |
939 | } | |
940 | ||
41f8c0bb | 941 | int |
a2075ffb | 942 | inf_scan_ident (s, c) |
943 | register sstring *s; | |
944 | int c; | |
945 | { | |
946 | s->ptr = s->base; | |
cc404a47 | 947 | if (ISALPHA (c) || c == '_') |
a2075ffb | 948 | { |
949 | for (;;) | |
950 | { | |
9ebdb4ae | 951 | SSTRING_PUT (s, c); |
a2075ffb | 952 | c = INF_GET (); |
cc404a47 | 953 | if (c == EOF || !(ISALNUM (c) || c == '_')) |
a2075ffb | 954 | break; |
955 | } | |
956 | } | |
9ebdb4ae | 957 | MAKE_SSTRING_SPACE (s, 1); |
a2075ffb | 958 | *s->ptr = 0; |
959 | return c; | |
960 | } | |
961 | ||
962 | /* Returns 1 if the file is correctly protected against multiple | |
963 | inclusion, setting *ifndef_line to the line number of the initial #ifndef | |
964 | and setting *endif_line to the final #endif. | |
a92771b8 | 965 | Otherwise return 0. */ |
a2075ffb | 966 | |
967 | int | |
968 | check_protection (ifndef_line, endif_line) | |
41f8c0bb | 969 | int *ifndef_line, *endif_line; |
970 | { | |
971 | int c; | |
972 | int if_nesting = 1; /* Level of nesting of #if's */ | |
973 | char *protect_name = NULL; /* Identifier following initial #ifndef */ | |
974 | int define_seen = 0; | |
975 | ||
a92771b8 | 976 | /* Skip initial white space (including comments). */ |
41f8c0bb | 977 | for (;; lineno++) |
978 | { | |
a2075ffb | 979 | c = inf_skip_spaces (' '); |
41f8c0bb | 980 | if (c == EOF) |
981 | return 0; | |
982 | if (c != '\n') | |
983 | break; | |
984 | } | |
985 | if (c != '#') | |
986 | return 0; | |
a2075ffb | 987 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
9ebdb4ae | 988 | if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0) |
41f8c0bb | 989 | return 0; |
990 | ||
a92771b8 | 991 | /* So far so good: We've seen an initial #ifndef. */ |
41f8c0bb | 992 | *ifndef_line = lineno; |
a2075ffb | 993 | c = inf_scan_ident (&buf, inf_skip_spaces (c)); |
9ebdb4ae | 994 | if (SSTRING_LENGTH (&buf) == 0 || c == EOF) |
41f8c0bb | 995 | return 0; |
592ef3a0 | 996 | protect_name = xstrdup (buf.base); |
41f8c0bb | 997 | |
73439ee0 | 998 | (void) INF_UNGET (c); |
a2075ffb | 999 | c = inf_read_upto (&buf, '\n'); |
41f8c0bb | 1000 | if (c == EOF) |
1001 | return 0; | |
1002 | lineno++; | |
1003 | ||
1004 | for (;;) | |
1005 | { | |
9ebdb4ae | 1006 | c = inf_skip_spaces (' '); |
41f8c0bb | 1007 | if (c == EOF) |
1008 | return 0; | |
1009 | if (c == '\n') | |
1010 | { | |
1011 | lineno++; | |
1012 | continue; | |
1013 | } | |
1014 | if (c != '#') | |
1015 | goto skip_to_eol; | |
a2075ffb | 1016 | c = inf_scan_ident (&buf, inf_skip_spaces (' ')); |
9ebdb4ae | 1017 | if (SSTRING_LENGTH (&buf) == 0) |
41f8c0bb | 1018 | ; |
1019 | else if (!strcmp (buf.base, "ifndef") | |
1020 | || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if")) | |
1021 | { | |
1022 | if_nesting++; | |
1023 | } | |
1024 | else if (!strcmp (buf.base, "endif")) | |
1025 | { | |
1026 | if_nesting--; | |
1027 | if (if_nesting == 0) | |
1028 | break; | |
1029 | } | |
1030 | else if (!strcmp (buf.base, "else")) | |
1031 | { | |
1032 | if (if_nesting == 1) | |
1033 | return 0; | |
1034 | } | |
1035 | else if (!strcmp (buf.base, "define")) | |
1036 | { | |
1037 | if (if_nesting != 1) | |
1038 | goto skip_to_eol; | |
a2075ffb | 1039 | c = inf_skip_spaces (c); |
1040 | c = inf_scan_ident (&buf, c); | |
9ebdb4ae | 1041 | if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0) |
41f8c0bb | 1042 | define_seen = 1; |
1043 | } | |
1044 | skip_to_eol: | |
1045 | for (;;) | |
1046 | { | |
1047 | if (c == '\n' || c == EOF) | |
1048 | break; | |
9ebdb4ae | 1049 | c = INF_GET (); |
41f8c0bb | 1050 | } |
1051 | if (c == EOF) | |
1052 | return 0; | |
1053 | lineno++; | |
1054 | } | |
1055 | ||
1056 | if (!define_seen) | |
1057 | return 0; | |
1058 | *endif_line = lineno; | |
a92771b8 | 1059 | /* Skip final white space (including comments). */ |
41f8c0bb | 1060 | for (;;) |
1061 | { | |
a2075ffb | 1062 | c = inf_skip_spaces (' '); |
41f8c0bb | 1063 | if (c == EOF) |
1064 | break; | |
1065 | if (c != '\n') | |
1066 | return 0; | |
1067 | } | |
1068 | ||
1069 | return 1; | |
1070 | } | |
1071 | ||
1072 | int | |
9ebdb4ae | 1073 | main (argc, argv) |
41f8c0bb | 1074 | int argc; |
1075 | char **argv; | |
1076 | { | |
a2075ffb | 1077 | int inf_fd; |
1078 | struct stat sbuf; | |
41f8c0bb | 1079 | int c; |
9e51f23f | 1080 | #ifdef FIXPROTO_IGNORE_LIST |
1081 | int i; | |
1082 | #endif | |
1083 | const char *cptr; | |
41f8c0bb | 1084 | int ifndef_line; |
a2075ffb | 1085 | int endif_line; |
1086 | long to_read; | |
9ebdb4ae | 1087 | long int inf_size; |
b833afc8 | 1088 | register struct symbol_list *cur_symbols; |
41f8c0bb | 1089 | |
1090 | if (argv[0] && argv[0][0]) | |
c0769a69 | 1091 | { |
1092 | register char *p; | |
1093 | ||
1094 | progname = 0; | |
1095 | for (p = argv[0]; *p; p++) | |
1096 | if (*p == '/') | |
1097 | progname = p; | |
1098 | progname = progname ? progname+1 : argv[0]; | |
1099 | } | |
41f8c0bb | 1100 | |
1101 | if (argc < 4) | |
1102 | { | |
ff8281e4 | 1103 | fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n", |
41f8c0bb | 1104 | progname); |
a5659160 | 1105 | exit (FATAL_EXIT_CODE); |
41f8c0bb | 1106 | } |
1107 | ||
1108 | inc_filename = argv[1]; | |
1109 | inc_filename_length = strlen (inc_filename); | |
ff8281e4 | 1110 | |
1111 | #ifdef FIXPROTO_IGNORE_LIST | |
1112 | for (i = 0; files_to_ignore[i] != NULL; i++) | |
1113 | { | |
1114 | char *ignore_name = files_to_ignore[i]; | |
1115 | int ignore_len = strlen (ignore_name); | |
1116 | if (strncmp (inc_filename, ignore_name, ignore_len) == 0) | |
1117 | { | |
1118 | if (ignore_name[ignore_len-1] == '/' | |
1119 | || inc_filename[ignore_len] == '\0') | |
1120 | { | |
1121 | if (verbose) | |
1122 | fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename); | |
a5659160 | 1123 | exit (SUCCESS_EXIT_CODE); |
ff8281e4 | 1124 | } |
1125 | } | |
1126 | ||
1127 | } | |
1128 | #endif | |
1129 | ||
41f8c0bb | 1130 | if (strcmp (inc_filename, "sys/stat.h") == 0) |
ff8281e4 | 1131 | special_file_handling = sys_stat_h; |
41f8c0bb | 1132 | else if (strcmp (inc_filename, "errno.h") == 0) |
a4cfa7e7 | 1133 | special_file_handling = errno_h, required_other++; |
1134 | else if (strcmp (inc_filename, "stdlib.h") == 0) | |
1135 | special_file_handling = stdlib_h, required_other+=2; | |
ff8281e4 | 1136 | else if (strcmp (inc_filename, "stdio.h") == 0) |
1137 | special_file_handling = stdio_h; | |
1138 | include_entry = std_include_table; | |
1139 | while (include_entry->name != NULL | |
b833afc8 | 1140 | && (include_entry->name == CONTINUED |
1141 | || strcmp (inc_filename, include_entry->name) != 0)) | |
ff8281e4 | 1142 | include_entry++; |
1143 | ||
b833afc8 | 1144 | if (include_entry->name != NULL) |
1145 | { | |
1146 | struct std_include_entry *entry; | |
1147 | cur_symbol_table_size = 0; | |
1148 | for (entry = include_entry; ;) | |
1149 | { | |
65ba74c3 | 1150 | if (entry->flags) |
1151 | add_symbols (entry->flags, entry->names); | |
b833afc8 | 1152 | entry++; |
1153 | if (entry->name != CONTINUED) | |
1154 | break; | |
1155 | } | |
1156 | } | |
1157 | else | |
1158 | symbol_table[0].names = NULL; | |
ff8281e4 | 1159 | |
a92771b8 | 1160 | /* Count and mark the prototypes required for this include file. */ |
b833afc8 | 1161 | for (cur_symbols = &symbol_table[0]; cur_symbols->names; cur_symbols++) |
41f8c0bb | 1162 | { |
b833afc8 | 1163 | int name_len; |
1164 | if (cur_symbols->flags & MACRO_SYMBOL) | |
1165 | continue; | |
1166 | cptr = cur_symbols->names; | |
1167 | for ( ; (name_len = strlen (cptr)) != 0; cptr+= name_len + 1) | |
1168 | { | |
1169 | struct fn_decl *fn = lookup_std_proto (cptr, name_len); | |
1170 | required_unseen_count++; | |
1171 | if (fn == NULL) | |
1172 | fprintf (stderr, "Internal error: No prototype for %s\n", cptr); | |
1173 | else | |
1174 | SET_REQUIRED (fn); | |
1175 | } | |
41f8c0bb | 1176 | } |
41f8c0bb | 1177 | |
ff8281e4 | 1178 | read_scan_file (argv[2], argc - 4, argv + 4); |
41f8c0bb | 1179 | |
a2075ffb | 1180 | inf_fd = open (argv[2], O_RDONLY, 0666); |
1181 | if (inf_fd < 0) | |
41f8c0bb | 1182 | { |
1183 | fprintf (stderr, "%s: Cannot open '%s' for reading -", | |
1184 | progname, argv[2]); | |
1185 | perror (NULL); | |
a5659160 | 1186 | exit (FATAL_EXIT_CODE); |
41f8c0bb | 1187 | } |
a2075ffb | 1188 | if (fstat (inf_fd, &sbuf) < 0) |
1189 | { | |
1190 | fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]); | |
1191 | perror (NULL); | |
a5659160 | 1192 | exit (FATAL_EXIT_CODE); |
a2075ffb | 1193 | } |
1194 | inf_size = sbuf.st_size; | |
a92771b8 | 1195 | inf_buffer = (char *) xmalloc (inf_size + 2); |
a2075ffb | 1196 | inf_buffer[inf_size] = '\n'; |
1197 | inf_buffer[inf_size + 1] = '\0'; | |
1198 | inf_limit = inf_buffer + inf_size; | |
1199 | inf_ptr = inf_buffer; | |
1200 | ||
1201 | to_read = inf_size; | |
1202 | while (to_read > 0) | |
1203 | { | |
1204 | long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read); | |
1205 | if (i < 0) | |
1206 | { | |
1207 | fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]); | |
1208 | perror (NULL); | |
a5659160 | 1209 | exit (FATAL_EXIT_CODE); |
a2075ffb | 1210 | } |
1211 | if (i == 0) | |
1212 | { | |
1213 | inf_size -= to_read; | |
1214 | break; | |
1215 | } | |
1216 | to_read -= i; | |
1217 | } | |
1218 | ||
1219 | close (inf_fd); | |
41f8c0bb | 1220 | |
a92771b8 | 1221 | /* If file doesn't end with '\n', add one. */ |
9ebdb4ae | 1222 | if (inf_limit > inf_buffer && inf_limit[-1] != '\n') |
1223 | inf_limit++; | |
1224 | ||
c0769a69 | 1225 | unlink (argv[3]); |
41f8c0bb | 1226 | outf = fopen (argv[3], "w"); |
1227 | if (outf == NULL) | |
1228 | { | |
1229 | fprintf (stderr, "%s: Cannot open '%s' for writing -", | |
1230 | progname, argv[3]); | |
1231 | perror (NULL); | |
a5659160 | 1232 | exit (FATAL_EXIT_CODE); |
41f8c0bb | 1233 | } |
1234 | ||
a2075ffb | 1235 | lineno = 1; |
1236 | ||
1237 | if (check_protection (&ifndef_line, &endif_line)) | |
41f8c0bb | 1238 | { |
41f8c0bb | 1239 | lbrac_line = ifndef_line+1; |
1240 | rbrac_line = endif_line; | |
1241 | } | |
1242 | else | |
1243 | { | |
1244 | lbrac_line = 1; | |
1245 | rbrac_line = -1; | |
1246 | } | |
1247 | ||
a92771b8 | 1248 | /* Reset input file. */ |
a2075ffb | 1249 | inf_ptr = inf_buffer; |
41f8c0bb | 1250 | lineno = 1; |
1251 | ||
1252 | for (;;) | |
1253 | { | |
1254 | if (lineno == lbrac_line) | |
1255 | write_lbrac (); | |
1256 | if (lineno == rbrac_line) | |
1257 | write_rbrac (); | |
1258 | for (;;) | |
1259 | { | |
1260 | struct fn_decl *fn; | |
9ebdb4ae | 1261 | c = INF_GET (); |
41f8c0bb | 1262 | if (c == EOF) |
1263 | break; | |
cc404a47 | 1264 | if (ISALPHA (c) || c == '_') |
41f8c0bb | 1265 | { |
a2075ffb | 1266 | c = inf_scan_ident (&buf, c); |
73439ee0 | 1267 | (void) INF_UNGET (c); |
41f8c0bb | 1268 | fputs (buf.base, outf); |
ff8281e4 | 1269 | fn = lookup_std_proto (buf.base, strlen (buf.base)); |
41f8c0bb | 1270 | /* We only want to edit the declaration matching the one |
1271 | seen by scan-decls, as there can be multiple | |
a92771b8 | 1272 | declarations, selected by #ifdef __STDC__ or whatever. */ |
41f8c0bb | 1273 | if (fn && fn->partial && fn->partial->line_seen == lineno) |
1274 | { | |
a2075ffb | 1275 | c = inf_skip_spaces (' '); |
41f8c0bb | 1276 | if (c == EOF) |
1277 | break; | |
1278 | if (c == '(') | |
1279 | { | |
a2075ffb | 1280 | c = inf_skip_spaces (' '); |
41f8c0bb | 1281 | if (c == ')') |
1282 | { | |
1283 | fprintf (outf, " _PARAMS((%s))", fn->params); | |
1284 | } | |
1285 | else | |
1286 | { | |
1287 | putc ('(', outf); | |
73439ee0 | 1288 | (void) INF_UNGET (c); |
41f8c0bb | 1289 | } |
1290 | } | |
1291 | else | |
f8b1eeaa | 1292 | fprintf (outf, " %c", c); |
41f8c0bb | 1293 | } |
1294 | } | |
1295 | else | |
a2075ffb | 1296 | { |
1297 | putc (c, outf); | |
1298 | if (c == '\n') | |
1299 | break; | |
1300 | } | |
41f8c0bb | 1301 | } |
1302 | if (c == EOF) | |
1303 | break; | |
1304 | lineno++; | |
1305 | } | |
1306 | if (rbrac_line < 0) | |
1307 | write_rbrac (); | |
1308 | ||
41f8c0bb | 1309 | fclose (outf); |
1310 | ||
1311 | return 0; | |
1312 | } | |
ff8281e4 | 1313 | \f |
0e93a6ac | 1314 | |
1315 | static void | |
1316 | v_fatal (str, ap) | |
1317 | const char * str; | |
1318 | va_list ap; | |
ff8281e4 | 1319 | { |
1a44422d | 1320 | fprintf (stderr, "%s: %s: ", progname, inc_filename); |
0e93a6ac | 1321 | vfprintf (stderr, str, ap); |
ff8281e4 | 1322 | fprintf (stderr, "\n"); |
0e93a6ac | 1323 | |
548525a3 | 1324 | exit (FATAL_EXIT_CODE); |
ff8281e4 | 1325 | } |
1326 | ||
307ea935 | 1327 | void |
0e93a6ac | 1328 | fatal VPROTO ((const char *str, ...)) |
307ea935 | 1329 | { |
7bca031c | 1330 | #ifndef ANSI_PROTOTYPES |
0e93a6ac | 1331 | const char *str; |
1332 | #endif | |
1333 | va_list ap; | |
1334 | ||
1335 | VA_START(ap, str); | |
1336 | ||
7bca031c | 1337 | #ifndef ANSI_PROTOTYPES |
0e93a6ac | 1338 | str = va_arg (ap, const char *); |
1339 | #endif | |
1340 | ||
1341 | v_fatal(str, ap); | |
1342 | va_end(ap); | |
1343 | } |