1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
|
/* fix-header.c - Make C header file suitable for C++.
Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* This program massages a system include file (such as stdio.h),
into a form more conforming with ANSI/POSIX, and more suitable for C++:
* extern "C" { ... } braces are added (inside #ifndef __cplusplus),
if they seem to be needed. These prevent C++ compilers from name
mangling the functions inside the braces.
* If an old-style incomplete function declaration is seen (without
an argument list), and it is a "standard" function listed in
the file sys-protos.h (and with a non-empty argument list), then
the declaration is converted to a complete prototype by replacing
the empty parameter list with the argument lust from sys-protos.h.
* The program can be given a list of (names of) required standard
functions (such as fclose for stdio.h). If a required function
is not seen in the input, then a prototype for it will be
written to the output.
* If all of the non-comment code of the original file is protected
against multiple inclusion:
#ifndef FOO
#define FOO
<body of include file>
#endif
then extra matter added to the include file is placed inside the <body>.
* If the input file is OK (nothing needs to be done);
the output file is not written (nor removed if it exists).
There are also some special actions that are done for certain
well-known standard include files:
* If argv[1] is "sys/stat.h", the Posix.1 macros
S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISLNK, S_ISREG are added if
they were missing, and the corresponding "traditional" S_IFxxx
macros were defined.
* If argv[1] is "errno.h", errno is declared if it was missing.
* TODO: The input file should be read complete into memory, because:
a) it needs to be scanned twice anyway, and
b) it would be nice to allow update in place.
Usage:
fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS]
where:
* FOO.H is the relative file name of the include file,
as it would be #include'd by a C file. (E.g. stdio.h)
* INFILE.H is a full pathname for the input file (e.g. /usr/include/stdio.h)
* OUTFILE.H is the full pathname for where to write the output file,
if anything needs to be done. (e.g. ./include/stdio.h)
* OPTIONS are such as you would pass to cpp.
Written by Per Bothner <bothner@cygnus.com>, July 1993. */
#include <stdio.h>
#include <ctype.h>
#include "hconfig.h"
#include "obstack.h"
#include "scan.h"
#include "cpplib.h"
#ifndef O_RDONLY
#define O_RDONLY 0
#endif
#if !__STDC__
#define const /* nothing */
#endif
sstring buf;
int verbose = 0;
int partial_count = 0;
int warnings = 0;
/* We no longer need to add extern "C", because cpp implicitly
forces the standard include files to be treated as C. */
/*#define ADD_MISSING_EXTERN_C 1 */
#if ADD_MISSING_EXTERN_C
int missing_extern_C_count = 0;
#endif
int missing_errno = 0;
#include "xsys-protos.h"
#ifdef FIXPROTO_IGNORE_LIST
/* This is a currently unused feature. */
/* List of files and directories to ignore.
A directory name (ending in '/') means ignore anything in that
directory. (It might be more efficient to do directory pruning
earlier in fixproto, but this is simpler and easier to customize.) */
static char *files_to_ignore[] = {
"X11/",
FIXPROTO_IGNORE_LIST
0
};
#endif
char *inf_buffer;
char *inf_limit;
char *inf_ptr;
/* Certain standard files get extra treatment */
enum special_file
{
no_special,
errno_h,
stdio_h,
sys_stat_h
};
/* A NAMELIST is a sequence of names, separated by '\0', and terminated
by an empty name (i.e. by "\0\0"). */
typedef const char* namelist;
struct std_include_entry {
const char *name;
namelist required;
namelist extra;
int special;
};
/* End of namelist NAMES. */
namelist
namelist_end (names)
namelist names;
{
register namelist ptr;
for (ptr = names; ; ptr++)
{
if (*ptr == '\0')
{
ptr++;
if (*ptr == '\0')
return ptr;
}
}
}
const char NONE[] = "";
struct std_include_entry *include_entry;
struct std_include_entry std_include_table [] = {
{ "ctype.h",
"isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\
isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0", NONE },
{ "dirent.h", "closedir\0opendir\0readdir\0rewinddir\0", NONE},
{ "errno.h", NONE, "errno\0" },
{ "curses.h", "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\
mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\
scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\
waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\
wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0", NONE },
{ "fcntl.h", "creat\0fcntl\0open\0", NONE },
/* Maybe also "getgrent fgetgrent setgrent endgrent" */
{ "grp.h", "getgrgid\0getgrnam\0", NONE },
/*{ "limit.h", ... provided by gcc }, */
{ "locale.h", "localeconv\0setlocale\0", NONE },
{ "math.h", "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\
fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\
tan\0tanh\0", "HUGE_VAL\0" },
{ "pwd.h", "getpwnam\0getpwuid\0", NONE },
/* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */
{ "setjmp.h", "longjmp\0setjmp\0", NONE },
/* Left out signal() - its prototype is too complex for us!
Also left out "sigaction sigaddset sigdelset sigemptyset
sigfillset sigismember sigpending sigprocmask sigsuspend"
because these need sigset_t or struct sigaction.
Most systems that provide them will also declare them. */
{ "signal.h", "kill\0raise\0", NONE },
{ "stdio.h", "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\
fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\
fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0pclose\0perror\0popen\0\
printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\
setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\
tmpnam\0ungetc\0", NONE },
/* Should perhaps also handle NULL, EOF, ... ? */
/* "div ldiv", - ignored because these depend on div_t, ldiv_t
ignore these: "mblen mbstowcs mbstowc wcstombs wctomb"
Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions.
Should perhaps also add NULL */
{ "stdlib.h", "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\
exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\
srand\0strtod\0strtol\0strtoul\0system\0", NONE },
{ "string.h", "memchr\0memcmp\0memcpy\0memmove\0memset\0\
strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\
strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\
strtok\0strxfrm\0", NONE },
/* Should perhaps also add NULL and size_t */
{ "sys/stat.h", "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0",
"S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\
S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" },
{ "sys/times.h", "times\0", NONE },
/* "sys/types.h" add types (not in old g++-include) */
{ "sys/utsname.h", "uname\0", NONE },
{ "sys/wait.h", "wait\0waitpid\0",
"WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\
WTERMSIG\0WNOHANG\0WNOTRACED\0" },
{ "tar.h", NONE, NONE },
{ "termios.h", "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0", NONE },
{ "time.h", "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0", NONE },
{ "unistd.h", "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\
dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\
getcwd\0getegid\0geteuid\0getgid\0getlogin\0getopt\0getpgrp\0getpid\0\
getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\
setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\
ttyname\0unlink\0write\0", NONE },
{ 0, NONE, NONE }
};
enum special_file special_file_handling = no_special;
/* The following are only used when handling sys/stat.h */
/* They are set if the corresponding macro has been seen. */
int seen_S_IFBLK = 0, seen_S_ISBLK = 0;
int seen_S_IFCHR = 0, seen_S_ISCHR = 0;
int seen_S_IFDIR = 0, seen_S_ISDIR = 0;
int seen_S_IFIFO = 0, seen_S_ISFIFO = 0;
int seen_S_IFLNK = 0, seen_S_ISLNK = 0;
int seen_S_IFREG = 0, seen_S_ISREG = 0;
/* Wrapper around free, to avoid prototype clashes. */
void
xfree (ptr)
char *ptr;
{
free (ptr);
}
/* Avoid error if config defines abort as fancy_abort.
It's not worth "really" implementing this because ordinary
compiler users never run fix-header. */
void
fancy_abort ()
{
abort ();
}
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free xfree
struct obstack scan_file_obstack;
/* NOTE: If you edit this, also edit gen-protos.c !! */
struct fn_decl *
lookup_std_proto (name, name_length)
const char *name;
int name_length;
{
int i = hashf (name, name_length, HASH_SIZE);
int i0 = i;
for (;;)
{
struct fn_decl *fn;
if (hash_tab[i] == 0)
return NULL;
fn = &std_protos[hash_tab[i]];
if (strlen (fn->fname) == name_length
&& strncmp (fn->fname, name, name_length) == 0)
return fn;
i = (i+1) % HASH_SIZE;
if (i == i0)
abort ();
}
}
char *inc_filename;
int inc_filename_length;
char *progname = "fix-header";
FILE *outf;
sstring line;
int lbrac_line, rbrac_line;
namelist required_functions_list;
int required_unseen_count = 0;
void
write_lbrac ()
{
#if ADD_MISSING_EXTERN_C
if (missing_extern_C_count + required_unseen_count > 0)
fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
#endif
if (partial_count)
{
fprintf (outf, "#ifndef _PARAMS\n");
fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n");
fprintf (outf, "#define _PARAMS(ARGS) ARGS\n");
fprintf (outf, "#else\n");
fprintf (outf, "#define _PARAMS(ARGS) ()\n");
fprintf (outf, "#endif\n#endif /* _PARAMS */\n");
}
}
struct partial_proto
{
struct partial_proto *next;
char *fname; /* name of function */
char *rtype; /* return type */
struct fn_decl *fn;
int line_seen;
};
struct partial_proto *partial_proto_list = NULL;
struct partial_proto required_dummy_proto, seen_dummy_proto;
#define REQUIRED(FN) ((FN)->partial == &required_dummy_proto)
#define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto)
#define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto)
#define SEEN(FN) ((FN)->partial == &seen_dummy_proto)
void
recognized_macro (fname)
char *fname;
{
/* The original include file defines fname as a macro. */
struct fn_decl *fn = lookup_std_proto (fname, strlen (fname));
/* Since fname is a macro, don't require a prototype for it. */
if (fn)
{
if (REQUIRED (fn))
required_unseen_count--;
SET_SEEN (fn);
}
switch (special_file_handling)
{
case errno_h:
if (strcmp (fname, "errno") == 0) missing_errno = 0;
break;
case sys_stat_h:
if (fname[0] == 'S' && fname[1] == '_')
{
if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++;
else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++;
else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++;
else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++;
else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++;
else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++;
else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++;
else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++;
else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++;
else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++;
else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++;
else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++;
}
}
}
void
recognized_extern (name, name_length, type, type_length)
char *name;
char *type;
int name_length, type_length;
{
switch (special_file_handling)
{
case errno_h:
if (strncmp (name, "errno", name_length) == 0) missing_errno = 0;
break;
}
}
/* Called by scan_decls if it saw a function definition for a function
named FNAME, with return type RTYPE, and argument list ARGS,
in source file FILE_SEEN on line LINE_SEEN.
KIND is 'I' for an inline function;
'F' if a normal function declaration preceded by 'extern "C"'
(or nested inside 'extern "C"' braces); or
'f' for other function declarations. */
void
recognized_function (fname, fname_length,
kind, rtype, rtype_length,
have_arg_list, file_seen, line_seen)
char *fname;
int fname_length;
int kind; /* One of 'f' 'F' or 'I' */
char *rtype;
int rtype_length;
int have_arg_list;
char *file_seen;
int line_seen;
{
struct partial_proto *partial;
int i;
struct fn_decl *fn;
#if ADD_MISSING_EXTERN_C
if (kind == 'f')
missing_extern_C_count++;
#endif
fn = lookup_std_proto (fname, fname_length);
/* Remove the function from the list of required function. */
if (fn)
{
if (REQUIRED (fn))
required_unseen_count--;
SET_SEEN (fn);
}
/* If we have a full prototype, we're done. */
if (have_arg_list)
return;
if (kind == 'I') /* don't edit inline function */
return;
/* If the partial prototype was included from some other file,
we don't need to patch it up (in this run). */
i = strlen (file_seen);
if (i < inc_filename_length
|| strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0)
return;
if (fn == NULL)
return;
if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0)
return;
/* We only have a partial function declaration,
so remember that we have to add a complete prototype. */
partial_count++;
partial = (struct partial_proto*)
obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto));
partial->fname = obstack_alloc (&scan_file_obstack, fname_length + 1);
bcopy (fname, partial->fname, fname_length);
partial->fname[fname_length] = 0;
partial->rtype = obstack_alloc (&scan_file_obstack, rtype_length + 1);
sprintf (partial->rtype, "%.*s", rtype_length, rtype);
partial->line_seen = line_seen;
partial->fn = fn;
fn->partial = partial;
partial->next = partial_proto_list;
partial_proto_list = partial;
if (verbose)
{
fprintf (stderr, "(%s: %s non-prototype function declaration.)\n",
inc_filename, partial->fname);
}
}
/* For any name in NAMES that is defined as a macro,
call recognized_macro on it. */
void
check_macro_names (pfile, names)
struct parse_file *pfile;
namelist names;
{
while (*names)
{
if (cpp_lookup (pfile, names, -1, -1))
recognized_macro (names);
names += strlen (names) + 1;
}
}
void
read_scan_file (in_fname, argc, argv)
char *in_fname;
int argc;
char **argv;
{
cpp_reader scan_in;
cpp_options scan_options;
struct fn_decl *fn;
int i;
obstack_init (&scan_file_obstack);
init_parse_file (&scan_in);
scan_in.data = &scan_options;
init_parse_options (&scan_options);
i = cpp_handle_options (&scan_in, argc, argv);
if (i < argc)
fatal ("Invalid option `%s'", argv[i]);
push_parse_file (&scan_in, in_fname);
CPP_OPTIONS (&scan_in)->no_line_commands = 1;
#ifdef FIXPROTO_INIT
/* Some targets may assume special definitions (for example
OSF header files assume __LANGUAGE_C__). These macros
are normally passed to cpplib by gcc - but we here invoke
cpplib directly, without going through gcc.
Handle these and other target-dependent initializations here. */
FIXPROTO_INIT (&scan_in);
#endif
/* Actually (pre-)process the header file. */
scan_decls (&scan_in, argc, argv);
check_macro_names (&scan_in, include_entry->required);
check_macro_names (&scan_in, include_entry->extra);
if (verbose && (scan_in.errors + warnings) > 0)
fprintf (stderr, "(%s: %d errors and %d warnings from cpp)\n",
inc_filename, scan_in.errors, warnings);
if (scan_in.errors)
exit (0);
/* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf.
If so, those functions are also required. */
if (special_file_handling == stdio_h
&& (fn = lookup_std_proto ("_filbuf", 7)) != NULL)
{
static char getchar_call[] = "getchar();";
cpp_buffer *buf =
cpp_push_buffer (&scan_in, getchar_call, sizeof(getchar_call) - 1);
int old_written = CPP_WRITTEN (&scan_in);
int seen_filbuf = 0;
/* Scan the macro expansion of "getchar();". */
for (;;)
{
enum cpp_token token = cpp_get_token (&scan_in);
int length = CPP_WRITTEN (&scan_in) - old_written;
CPP_SET_WRITTEN (&scan_in, old_written);
if (token == CPP_EOF) /* Should not happen ... */
break;
if (token == CPP_POP && CPP_BUFFER (&scan_in) == buf)
{
cpp_pop_buffer (&scan_in);
break;
}
if (token == CPP_NAME && length == 7
&& strcmp ("_filbuf", scan_in.token_buffer + old_written) == 0)
seen_filbuf++;
}
if (seen_filbuf)
{
int need_filbuf = !SEEN (fn) && !REQUIRED (fn);
struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7);
int need_flsbuf
= flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn);
/* Append "_filbuf" and/or "_flsbuf" to end of
required_functions_list. */
if (need_filbuf + need_flsbuf)
{
int old_len = namelist_end (required_functions_list)
- required_functions_list;
char *new_list = (char*) xmalloc (old_len + 20);
bcopy (required_functions_list, new_list, old_len);
if (need_filbuf)
{
strcpy (new_list + old_len, "_filbuf");
old_len += 8;
SET_REQUIRED (fn);
}
if (need_flsbuf)
{
strcpy (new_list + old_len, "_flsbuf");
old_len += 8;
SET_REQUIRED (flsbuf_fn);
}
new_list[old_len] = '\0';
required_functions_list = (namelist)new_list;
required_unseen_count += need_filbuf + need_flsbuf;
}
}
}
if (required_unseen_count + partial_count + missing_errno
#if ADD_MISSING_EXTERN_C
+ missing_extern_C_count
#endif
== 0)
{
if (verbose)
fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename);
exit (0);
}
if (!verbose)
fprintf (stderr, "%s: fixing %s\n", progname, inc_filename);
else
{
if (required_unseen_count)
fprintf (stderr, "%s: %d missing function declarations.\n",
inc_filename, required_unseen_count);
if (partial_count)
fprintf (stderr, "%s: %d non-prototype function declarations.\n",
inc_filename, partial_count);
#if ADD_MISSING_EXTERN_C
if (missing_extern_C_count)
fprintf (stderr,
"%s: %d declarations not protected by extern \"C\".\n",
inc_filename, missing_extern_C_count);
#endif
}
}
void
write_rbrac ()
{
struct fn_decl *fn;
const char *cptr;
if (required_unseen_count)
{
fprintf (outf,
"#if defined(__cplusplus) || defined(__USE_FIXED_PROTOTYPES__)\n");
#ifdef NO_IMPLICIT_EXTERN_C
fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
#endif
}
/* Now we print out prototypes for those functions that we haven't seen. */
for (cptr = required_functions_list; *cptr!= '\0'; )
{
int macro_protect = 0;
int name_len = strlen (cptr);
fn = lookup_std_proto (cptr, name_len);
cptr+= name_len + 1;
if (fn == NULL || !REQUIRED (fn))
continue;
/* In the case of memmove, protect in case the application
defines it as a macro before including the header. */
if (!strcmp (fn->fname, "memmove")
|| !strcmp (fn->fname, "vprintf")
|| !strcmp (fn->fname, "vfprintf")
|| !strcmp (fn->fname, "vsprintf")
|| !strcmp (fn->fname, "rewinddir"))
macro_protect = 1;
if (macro_protect)
fprintf (outf, "#ifndef %s\n", fn->fname);
fprintf (outf, "extern %s %s (%s);\n",
fn->rtype, fn->fname, fn->params);
if (macro_protect)
fprintf (outf, "#endif\n");
}
if (required_unseen_count)
{
#ifdef NO_IMPLICIT_EXTERN_C
fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
#endif
fprintf (outf,
"#endif /* defined(__cplusplus) || defined(__USE_FIXED_PROTOTYPES__*/\n");
}
switch (special_file_handling)
{
case errno_h:
if (missing_errno)
fprintf (outf, "extern int errno;\n");
break;
case sys_stat_h:
if (!seen_S_ISBLK && seen_S_IFBLK)
fprintf (outf,
"#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n");
if (!seen_S_ISCHR && seen_S_IFCHR)
fprintf (outf,
"#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n");
if (!seen_S_ISDIR && seen_S_IFDIR)
fprintf (outf,
"#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n");
if (!seen_S_ISFIFO && seen_S_IFIFO)
fprintf (outf,
"#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n");
if (!seen_S_ISLNK && seen_S_IFLNK)
fprintf (outf,
"#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n");
if (!seen_S_ISREG && seen_S_IFREG)
fprintf (outf,
"#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n");
break;
}
#if ADD_MISSING_EXTERN_C
if (missing_extern_C_count + required_unseen_count > 0)
fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
#endif
}
char *
xstrdup (str)
char *str;
{
char *copy = (char *) xmalloc (strlen (str) + 1);
strcpy (copy, str);
return copy;
}
/* Returns 1 iff the file is properly protected from multiple inclusion:
#ifndef PROTECT_NAME
#define PROTECT_NAME
#endif
*/
#define INF_GET() (inf_ptr < inf_limit ? *(unsigned char*)inf_ptr++ : EOF)
#define INF_UNGET(c) ((c)!=EOF && inf_ptr--)
int
inf_skip_spaces (c)
int c;
{
for (;;)
{
if (c == ' ' || c == '\t')
c = INF_GET ();
else if (c == '/')
{
c = INF_GET ();
if (c != '*')
{
INF_UNGET (c);
return '/';
}
c = INF_GET ();
for (;;)
{
if (c == EOF)
return EOF;
else if (c != '*')
{
if (c == '\n')
source_lineno++, lineno++;
c = INF_GET ();
}
else if ((c = INF_GET ()) == '/')
return INF_GET ();
}
}
else
break;
}
return c;
}
/* Read into STR from inf_buffer upto DELIM. */
int
inf_read_upto (str, delim)
sstring *str;
int delim;
{
int ch;
for (;;)
{
ch = INF_GET ();
if (ch == EOF || ch == delim)
break;
SSTRING_PUT (str, ch);
}
MAKE_SSTRING_SPACE (str, 1);
*str->ptr = 0;
return ch;
}
int
inf_scan_ident (s, c)
register sstring *s;
int c;
{
s->ptr = s->base;
if (isalpha (c) || c == '_')
{
for (;;)
{
SSTRING_PUT (s, c);
c = INF_GET ();
if (c == EOF || !(isalnum (c) || c == '_'))
break;
}
}
MAKE_SSTRING_SPACE (s, 1);
*s->ptr = 0;
return c;
}
/* Returns 1 if the file is correctly protected against multiple
inclusion, setting *ifndef_line to the line number of the initial #ifndef
and setting *endif_line to the final #endif.
Otherwise return 0. */
int
check_protection (ifndef_line, endif_line)
int *ifndef_line, *endif_line;
{
int c;
int if_nesting = 1; /* Level of nesting of #if's */
char *protect_name = NULL; /* Identifier following initial #ifndef */
int define_seen = 0;
/* Skip initial white space (including comments). */
for (;; lineno++)
{
c = inf_skip_spaces (' ');
if (c == EOF)
return 0;
if (c != '\n')
break;
}
if (c != '#')
return 0;
c = inf_scan_ident (&buf, inf_skip_spaces (' '));
if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0)
return 0;
/* So far so good: We've seen an initial #ifndef. */
*ifndef_line = lineno;
c = inf_scan_ident (&buf, inf_skip_spaces (c));
if (SSTRING_LENGTH (&buf) == 0 || c == EOF)
return 0;
protect_name = xstrdup (buf.base);
INF_UNGET (c);
c = inf_read_upto (&buf, '\n');
if (c == EOF)
return 0;
lineno++;
for (;;)
{
c = inf_skip_spaces (' ');
if (c == EOF)
return 0;
if (c == '\n')
{
lineno++;
continue;
}
if (c != '#')
goto skip_to_eol;
c = inf_scan_ident (&buf, inf_skip_spaces (' '));
if (SSTRING_LENGTH (&buf) == 0)
;
else if (!strcmp (buf.base, "ifndef")
|| !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if"))
{
if_nesting++;
}
else if (!strcmp (buf.base, "endif"))
{
if_nesting--;
if (if_nesting == 0)
break;
}
else if (!strcmp (buf.base, "else"))
{
if (if_nesting == 1)
return 0;
}
else if (!strcmp (buf.base, "define"))
{
if (if_nesting != 1)
goto skip_to_eol;
c = inf_skip_spaces (c);
c = inf_scan_ident (&buf, c);
if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0)
define_seen = 1;
}
skip_to_eol:
for (;;)
{
if (c == '\n' || c == EOF)
break;
c = INF_GET ();
}
if (c == EOF)
return 0;
lineno++;
}
if (!define_seen)
return 0;
*endif_line = lineno;
/* Skip final white space (including comments). */
for (;;)
{
c = inf_skip_spaces (' ');
if (c == EOF)
break;
if (c != '\n')
return 0;
}
return 1;
}
int
main (argc, argv)
int argc;
char **argv;
{
int inf_fd;
struct stat sbuf;
int c;
int i, done;
const char *cptr, **pptr;
int ifndef_line;
int endif_line;
long to_read;
long int inf_size;
if (argv[0] && argv[0][0])
{
register char *p;
progname = 0;
for (p = argv[0]; *p; p++)
if (*p == '/')
progname = p;
progname = progname ? progname+1 : argv[0];
}
if (argc < 4)
{
fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n",
progname);
exit (-1);
}
inc_filename = argv[1];
inc_filename_length = strlen (inc_filename);
#ifdef FIXPROTO_IGNORE_LIST
for (i = 0; files_to_ignore[i] != NULL; i++)
{
char *ignore_name = files_to_ignore[i];
int ignore_len = strlen (ignore_name);
if (strncmp (inc_filename, ignore_name, ignore_len) == 0)
{
if (ignore_name[ignore_len-1] == '/'
|| inc_filename[ignore_len] == '\0')
{
if (verbose)
fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename);
exit (0);
}
}
}
#endif
if (strcmp (inc_filename, "sys/stat.h") == 0)
special_file_handling = sys_stat_h;
else if (strcmp (inc_filename, "errno.h") == 0)
special_file_handling = errno_h, missing_errno = 1;
else if (strcmp (inc_filename, "stdio.h") == 0)
special_file_handling = stdio_h;
include_entry = std_include_table;
while (include_entry->name != NULL
&& strcmp (inc_filename, include_entry->name) != 0)
include_entry++;
required_functions_list = include_entry->required;
/* Count and mark the prototypes required for this include file. */
for (cptr = required_functions_list; *cptr!= '\0'; )
{
int name_len = strlen (cptr);
struct fn_decl *fn = lookup_std_proto (cptr, name_len);
required_unseen_count++;
if (fn == NULL)
fprintf (stderr, "Internal error: No prototype for %s\n", cptr);
else
SET_REQUIRED (fn);
cptr += name_len + 1;
}
read_scan_file (argv[2], argc - 4, argv + 4);
inf_fd = open (argv[2], O_RDONLY, 0666);
if (inf_fd < 0)
{
fprintf (stderr, "%s: Cannot open '%s' for reading -",
progname, argv[2]);
perror (NULL);
exit (-1);
}
if (fstat (inf_fd, &sbuf) < 0)
{
fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]);
perror (NULL);
exit (-1);
}
inf_size = sbuf.st_size;
inf_buffer = (char*) xmalloc (inf_size + 2);
inf_buffer[inf_size] = '\n';
inf_buffer[inf_size + 1] = '\0';
inf_limit = inf_buffer + inf_size;
inf_ptr = inf_buffer;
to_read = inf_size;
while (to_read > 0)
{
long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read);
if (i < 0)
{
fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]);
perror (NULL);
exit (-1);
}
if (i == 0)
{
inf_size -= to_read;
break;
}
to_read -= i;
}
close (inf_fd);
/* If file doesn't end with '\n', add one. */
if (inf_limit > inf_buffer && inf_limit[-1] != '\n')
inf_limit++;
unlink (argv[3]);
outf = fopen (argv[3], "w");
if (outf == NULL)
{
fprintf (stderr, "%s: Cannot open '%s' for writing -",
progname, argv[3]);
perror (NULL);
exit (-1);
}
lineno = 1;
if (check_protection (&ifndef_line, &endif_line))
{
lbrac_line = ifndef_line+1;
rbrac_line = endif_line;
}
else
{
lbrac_line = 1;
rbrac_line = -1;
}
/* Reset input file. */
inf_ptr = inf_buffer;
lineno = 1;
for (;;)
{
if (lineno == lbrac_line)
write_lbrac ();
if (lineno == rbrac_line)
write_rbrac ();
for (;;)
{
struct fn_decl *fn;
c = INF_GET ();
if (c == EOF)
break;
if (isalpha (c) || c == '_')
{
c = inf_scan_ident (&buf, c);
INF_UNGET (c);
fputs (buf.base, outf);
fn = lookup_std_proto (buf.base, strlen (buf.base));
/* We only want to edit the declaration matching the one
seen by scan-decls, as there can be multiple
declarations, selected by #ifdef __STDC__ or whatever. */
if (fn && fn->partial && fn->partial->line_seen == lineno)
{
c = inf_skip_spaces (' ');
if (c == EOF)
break;
if (c == '(')
{
c = inf_skip_spaces (' ');
if (c == ')')
{
fprintf (outf, " _PARAMS((%s))", fn->params);
}
else
{
putc ('(', outf);
INF_UNGET (c);
}
}
else
fprintf (outf, " %c", c);
}
}
else
{
putc (c, outf);
if (c == '\n')
break;
}
}
if (c == EOF)
break;
lineno++;
}
if (rbrac_line < 0)
write_rbrac ();
fclose (outf);
return 0;
}
/* Stub error functions. These replace cpperror.c,
because we want to suppress error messages. */
void
cpp_file_line_for_message (pfile, filename, line, column)
cpp_reader *pfile;
char *filename;
int line, column;
{
if (!verbose)
return;
if (column > 0)
fprintf (stderr, "%s:%d:%d: ", filename, line, column);
else
fprintf (stderr, "%s:%d: ", filename, line);
}
void
cpp_print_containing_files (pfile)
cpp_reader *pfile;
{
}
/* IS_ERROR is 1 for error, 0 for warning */
void cpp_message (pfile, is_error, msg, arg1, arg2, arg3)
int is_error;
cpp_reader *pfile;
char *msg;
char *arg1, *arg2, *arg3;
{
if (is_error)
pfile->errors++;
if (!verbose)
return;
if (!is_error)
fprintf (stderr, "warning: ");
fprintf (stderr, msg, arg1, arg2, arg3);
fprintf (stderr, "\n");
}
void
fatal (str, arg)
char *str, *arg;
{
fprintf (stderr, "%s: %s: ", progname, inc_filename);
fprintf (stderr, str, arg);
fprintf (stderr, "\n");
exit (FATAL_EXIT_CODE);
}
void
cpp_pfatal_with_name (pfile, name)
cpp_reader *pfile;
char *name;
{
cpp_perror_with_name (pfile, name);
exit (FATAL_EXIT_CODE);
}
|
