compat_defs.h revision 1.26 1 /* $NetBSD: compat_defs.h,v 1.26 2003/03/13 04:30:39 thorpej Exp $ */
2
3 #ifndef __NETBSD_COMPAT_DEFS_H__
4 #define __NETBSD_COMPAT_DEFS_H__
5
6 /* Work around some complete brain damage. */
7
8 /*
9 * Linux: <features.h> turns on _POSIX_SOURCE by default, even though the
10 * program (not the OS) should do that. Preload <features.h> to keep any
11 * of this crap from being pulled in, and undefine _POSIX_SOURCE.
12 */
13
14 #if defined(__linux__) && HAVE_FEATURES_H
15 #include <features.h>
16 #endif
17
18 #undef _POSIX_SOURCE
19 #undef _POSIX_C_SOURCE
20
21 /* System headers needed for (re)definitions below. */
22
23 #include <sys/types.h>
24 #include <sys/mman.h>
25 #include <sys/param.h>
26 #include <sys/stat.h>
27 #include <sys/time.h>
28 #include <errno.h>
29 #include <fcntl.h>
30 #include <grp.h>
31 #include <limits.h>
32 #include <paths.h>
33 #include <stdarg.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37
38 #if HAVE_SYS_CDEFS_H
39 #include <sys/cdefs.h>
40 #endif
41 #if HAVE_SYS_SYSLIMITS_H
42 #include <sys/syslimits.h>
43 #endif
44 #if HAVE_SYS_SYSMACROS_H
45 /* major(), minor() on SVR4 */
46 #include <sys/sysmacros.h>
47 #endif
48 #if HAVE_INTTYPES_H
49 #include <inttypes.h>
50 #endif
51 #if HAVE_STDDEF_H
52 #include <stddef.h>
53 #endif
54
55 /* We don't include <pwd.h> here, so that "compat_pwd.h" works. */
56 struct passwd;
57
58 /* Assume an ANSI compiler for the host. */
59
60 #undef __P
61 #define __P(x) x
62
63 #ifndef __BEGIN_DECLS
64 #define __BEGIN_DECLS
65 #endif
66 #ifndef __END_DECLS
67 #define __END_DECLS
68 #endif
69
70 /* Some things usually in BSD <sys/cdefs.h>. */
71
72 #ifndef __CONCAT
73 #define __CONCAT(x,y) x ## y
74 #endif
75 #if !defined(__attribute__) && !defined(__GNUC__)
76 #define __attribute__(x)
77 #endif
78 #ifndef __RENAME
79 #define __RENAME(x)
80 #endif
81 #undef __aconst
82 #define __aconst
83 #undef __dead
84 #define __dead
85 #undef __restrict
86 #define __restrict
87
88 /* Dirent support. */
89
90 #if HAVE_DIRENT_H
91 # include <dirent.h>
92 # define NAMLEN(dirent) (strlen((dirent)->d_name))
93 #else
94 # define dirent direct
95 # define NAMLEN(dirent) ((dirent)->d_namlen)
96 # if HAVE_SYS_NDIR_H
97 # include <sys/ndir.h>
98 # endif
99 # if HAVE_SYS_DIR_H
100 # include <sys/dir.h>
101 # endif
102 # if HAVE_NDIR_H
103 # include <ndir.h>
104 # endif
105 #endif
106
107 /* Type substitutes. */
108
109 #if !HAVE_ID_T
110 typedef unsigned long id_t;
111 #endif
112
113 #if !HAVE_SOCKLEN_T
114 typedef int socklen_t;
115 #endif
116
117 /* Prototypes for replacement functions. */
118
119 #if !HAVE_ASPRINTF
120 int asprintf(char **, const char *, ...);
121 #endif
122
123 #if !HAVE_ASNPRINTF
124 int asnprintf(char **, size_t, const char *, ...);
125 #endif
126
127 #if !HAVE_BASENAME
128 char *basename(char *);
129 #endif
130
131 #if !HAVE_DECL_OPTIND
132 int getopt(int, char *const *, const char *);
133 extern char *optarg;
134 extern int optind, opterr, optopt;
135 #endif
136
137 #if !HAVE_DIRNAME
138 char *dirname(char *);
139 #endif
140
141 #if !HAVE_DIRFD
142 #if HAVE_DIR_DD_FD
143 #define dirfd(dirp) ((dirp)->dd_fd)
144 #else
145 #error cannot figure out how to turn a DIR * into a fd
146 #endif
147 #endif
148
149 #if !HAVE_ERR_H
150 void err(int, const char *, ...);
151 void errx(int, const char *, ...);
152 void warn(const char *, ...);
153 void warnx(const char *, ...);
154 #endif
155
156 #if !HAVE_FGETLN
157 char *fgetln(FILE *, size_t *);
158 #endif
159
160 #if !HAVE_FLOCK
161 # define LOCK_SH 0x01
162 # define LOCK_EX 0x02
163 # define LOCK_NB 0x04
164 # define LOCK_UN 0x08
165 int flock(int, int);
166 #endif
167
168 #if !HAVE_FPARSELN
169 # define FPARSELN_UNESCESC 0x01
170 # define FPARSELN_UNESCCONT 0x02
171 # define FPARSELN_UNESCCOMM 0x04
172 # define FPARSELN_UNESCREST 0x08
173 # define FPARSELN_UNESCALL 0x0f
174 char *fparseln(FILE *, size_t *, size_t *, const char [3], int);
175 #endif
176
177 #if !HAVE_ISSETUGID
178 int issetugid(void);
179 #endif
180
181 #if !HAVE_ISBLANK && !defined(isblank)
182 #define isblank(x) ((x) == ' ' || (x) == '\t')
183 #endif
184
185 #if !HAVE_LCHFLAGS
186 int lchflags(const char *, u_long);
187 #endif
188
189 #if !HAVE_LCHMOD
190 int lchmod(const char *, mode_t);
191 #endif
192
193 #if !HAVE_LCHOWN
194 int lchown(const char *, uid_t, gid_t);
195 #endif
196
197 #if !HAVE_MACHINE_BSWAP_H
198 #define bswap16(x) ((((x) << 8) & 0xff00) | (((x) >> 8) & 0x00ff))
199
200 #define bswap32(x) ((((x) << 24) & 0xff000000) | \
201 (((x) << 8) & 0x00ff0000) | \
202 (((x) >> 8) & 0x0000ff00) | \
203 (((x) >> 24) & 0x000000ff))
204
205 #define bswap64(x) (((u_int64_t)bswap32((x)) << 32) | \
206 ((u_int64_t)bswap32((x) >> 32)))
207 #endif
208
209 #if !HAVE_MKSTEMP
210 int mkstemp(char *);
211 #endif
212
213 #if !HAVE_MKDTEMP
214 char *mkdtemp(char *);
215 #endif
216
217 #if !HAVE_MKSTEMP || !HAVE_MKDTEMP
218 /* This is a prototype for the internal function. */
219 int gettemp(char *, int *, int);
220 #endif
221
222 #if !HAVE_PREAD
223 ssize_t pread(int, void *, size_t, off_t);
224 #endif
225
226 #if !HAVE_PWCACHE_USERDB
227 int uid_from_user(const char *, uid_t *);
228 int pwcache_userdb(int (*)(int), void (*)(void),
229 struct passwd * (*)(const char *), struct passwd * (*)(uid_t));
230 int gid_from_group(const char *, gid_t *);
231 int pwcache_groupdb(int (*)(int), void (*)(void),
232 struct group * (*)(const char *), struct group * (*)(gid_t));
233 #endif
234
235 #if !HAVE_PWRITE
236 ssize_t pwrite(int, const void *, size_t, off_t);
237 #endif
238
239 #if !HAVE_SETENV
240 int setenv(const char *, const char *, int);
241 #endif
242
243 #if !HAVE_DECL_SETGROUPENT
244 int setgroupent(int);
245 #endif
246
247 #if !HAVE_DECL_SETPASSENT
248 int setpassent(int);
249 #endif
250
251 #if !HAVE_SETPROGNAME
252 const char *getprogname(void);
253 void setprogname(const char *);
254 #endif
255
256 #if !HAVE_SNPRINTF
257 int snprintf(char *, size_t, const char *, ...);
258 #endif
259
260 #if !HAVE_STRLCAT
261 size_t strlcat(char *, const char *, size_t);
262 #endif
263
264 #if !HAVE_STRLCPY
265 size_t strlcpy(char *, const char *, size_t);
266 #endif
267
268 #if !HAVE_STRSEP
269 char *strsep(char **, const char *);
270 #endif
271
272 #if !HAVE_STRSUFTOLL
273 long long strsuftoll(const char *, const char *, long long, long long);
274 long long strsuftollx(const char *, const char *,
275 long long, long long, char *, size_t);
276 #endif
277
278 #if !HAVE_STRTOLL
279 long long strtoll(const char *, char **, int);
280 #endif
281
282 #if !HAVE_USER_FROM_UID
283 const char *user_from_uid(uid_t, int);
284 const char *group_from_gid(gid_t, int);
285 #endif
286
287 #if !HAVE_VASPRINTF
288 int vasprintf(char **, const char *, va_list);
289 #endif
290
291 #if !HAVE_VASNPRINTF
292 int vasnprintf(char **, size_t, const char *, va_list);
293 #endif
294
295 #if !HAVE_VSNPRINTF
296 int vsnprintf(char *, size_t, const char *, va_list);
297 #endif
298
299 /*
300 * getmode() and setmode() are always defined, as these function names
301 * exist but with very different meanings on other OS's. The compat
302 * versions here simply accept an octal mode number; the "u+x,g-w" type
303 * of syntax is not accepted.
304 */
305
306 #define getmode __nbcompat_getmode
307 #define setmode __nbcompat_setmode
308
309 mode_t getmode(const void *, mode_t);
310 void *setmode(const char *);
311
312 /* Eliminate assertions embedded in binaries. */
313
314 #undef _DIAGASSERT
315 #define _DIAGASSERT(x)
316
317 /* Heimdal expects this one. */
318
319 #undef RCSID
320 #define RCSID(x)
321
322 /* pwd_mkdb expects this one. */
323
324 #undef __SCCSID
325 #define __SCCSID(x)
326
327 /* Some definitions not available on all systems. */
328
329 /* <errno.h> */
330
331 #ifndef EFTYPE
332 #define EFTYPE EIO
333 #endif
334
335 /* <fcntl.h> */
336
337 #ifndef O_EXLOCK
338 #define O_EXLOCK 0
339 #endif
340 #ifndef O_SHLOCK
341 #define O_SHLOCK 0
342 #endif
343
344 /* <limits.h> */
345
346 #ifndef UID_MAX
347 #define UID_MAX 32767
348 #endif
349 #ifndef GID_MAX
350 #define GID_MAX UID_MAX
351 #endif
352
353 #ifndef UQUAD_MAX
354 #define UQUAD_MAX ((u_quad_t)-1)
355 #endif
356 #ifndef QUAD_MAX
357 #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
358 #endif
359 #ifndef QUAD_MIN
360 #define QUAD_MIN ((quad_t)(~QUAD_MAX))
361 #endif
362 #ifndef ULLONG_MAX
363 #define ULLONG_MAX ((unsigned long long)-1)
364 #endif
365 #ifndef LLONG_MAX
366 #define LLONG_MAX ((long long)(ULLONG_MAX >> 1))
367 #endif
368 #ifndef LLONG_MIN
369 #define LLONG_MIN ((long long)(~LLONG_MAX))
370 #endif
371
372 /* <paths.h> */
373
374 #ifndef _PATH_BSHELL
375 #define _PATH_BSHELL PATH_BSHELL
376 #endif
377 #ifndef _PATH_DEFPATH
378 #define _PATH_DEFPATH "/usr/bin:/bin:/usr/local/bin"
379 #endif
380 #ifndef _PATH_DEV
381 #define _PATH_DEV "/dev/"
382 #endif
383 #ifndef _PATH_DEVNULL
384 #define _PATH_DEVNULL _PATH_DEV "null"
385 #endif
386 #ifndef _PATH_TMP
387 #define _PATH_TMP "/tmp/"
388 #endif
389 #ifndef _PATH_DEFTAPE
390 #define _PATH_DEFTAPE "/dev/nrst0"
391 #endif
392
393 /* <stdarg.h> */
394
395 #ifndef _BSD_VA_LIST_
396 #define _BSD_VA_LIST_ va_list
397 #endif
398
399 /* <stdint.h> */
400
401 #ifndef UINT32_MAX
402 #define UINT32_MAX 0xffffffffU
403 #endif
404
405 /* <stdlib.h> */
406
407 #ifndef __GNUC__
408 # if HAVE_ALLOCA_H
409 # include <alloca.h>
410 # else
411 # ifndef alloca /* predefined by HP cc +Olibcalls */
412 char *alloca ();
413 # endif
414 # endif
415 #endif
416
417 /* avoid prototype conflicts with host */
418 #define cgetcap __nbcompat_cgetcap
419 #define cgetclose __nbcompat_cgetclose
420 #define cgetent __nbcompat_cgetent
421 #define cgetfirst __nbcompat_cgetfirst
422 #define cgetmatch __nbcompat_cgetmatch
423 #define cgetnext __nbcompat_cgetnext
424 #define cgetnum __nbcompat_cgetnum
425 #define cgetset __nbcompat_cgetset
426 #define cgetstr __nbcompat_cgetstr
427 #define cgetustr __nbcompat_cgetustr
428
429 char *cgetcap(char *, const char *, int);
430 int cgetclose(void);
431 int cgetent(char **, char **, const char *);
432 int cgetfirst(char **, char **);
433 int cgetmatch(const char *, const char *);
434 int cgetnext(char **, char **);
435 int cgetnum(char *, const char *, long *);
436 int cgetset(const char *);
437 int cgetstr(char *, const char *, char **);
438 int cgetustr(char *, const char *, char **);
439
440 /* <sys/endian.h> */
441
442 #ifndef HAVE_SYS_ENDIAN_H
443 #if WORDS_BIGENDIAN
444 #define htobe16(x) (x)
445 #define htobe32(x) (x)
446 #define htobe64(x) (x)
447 #define htole16(x) bswap16((u_int16_t)(x))
448 #define htole32(x) bswap32((u_int32_t)(x))
449 #define htole64(x) bswap64((u_int64_t)(x))
450 #else
451 #define htobe16(x) bswap16((u_int16_t)(x))
452 #define htobe32(x) bswap32((u_int32_t)(x))
453 #define htobe64(x) bswap64((u_int64_t)(x))
454 #define htole16(x) (x)
455 #define htole32(x) (x)
456 #define htole64(x) (x)
457 #endif
458 #define be16toh(x) htobe16(x)
459 #define be32toh(x) htobe32(x)
460 #define be64toh(x) htobe64(x)
461 #define le16toh(x) htole16(x)
462 #define le32toh(x) htole32(x)
463 #define le64toh(x) htole64(x)
464 #endif
465
466 /* <sys/mman.h> */
467
468 #ifndef MAP_FILE
469 #define MAP_FILE 0
470 #endif
471
472 /* HP-UX has MAP_ANONYMOUS but not MAP_ANON */
473 #ifndef MAP_ANON
474 #ifdef MAP_ANONYMOUS
475 #define MAP_ANON MAP_ANONYMOUS
476 #endif
477 #endif
478
479 /* <sys/param.h> */
480
481 #undef BIG_ENDIAN
482 #undef LITTLE_ENDIAN
483 #define BIG_ENDIAN 4321
484 #define LITTLE_ENDIAN 1234
485
486 #undef BYTE_ORDER
487 #if WORDS_BIGENDIAN
488 #define BYTE_ORDER BIG_ENDIAN
489 #else
490 #define BYTE_ORDER LITTLE_ENDIAN
491 #endif
492
493 #ifndef DEV_BSIZE
494 #define DEV_BSIZE (1 << 9)
495 #endif
496
497 #undef MIN
498 #undef MAX
499 #define MIN(a,b) ((a) < (b) ? (a) : (b))
500 #define MAX(a,b) ((a) > (b) ? (a) : (b))
501
502 #ifndef MAXBSIZE
503 #define MAXBSIZE (64 * 1024)
504 #endif
505 #ifndef MAXFRAG
506 #define MAXFRAG 8
507 #endif
508 #ifndef MAXPHYS
509 #define MAXPHYS (64 * 1024)
510 #endif
511
512 /* XXX needed by makefs; this should be done in a better way */
513 #undef btodb
514 #define btodb(x) ((x) << 9)
515
516 #undef setbit
517 #undef clrbit
518 #undef isset
519 #undef isclr
520 #define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY))
521 #define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
522 #define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY)))
523 #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
524
525 #ifndef powerof2
526 #define powerof2(x) ((((x)-1)&(x))==0)
527 #endif
528
529 #undef roundup
530 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
531
532 /* <sys/stat.h> */
533
534 #ifndef ALLPERMS
535 #define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
536 #endif
537 #ifndef DEFFILEMODE
538 #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
539 #endif
540 #ifndef S_ISTXT
541 #ifdef S_ISVTX
542 #define S_ISTXT S_ISVTX
543 #else
544 #define S_ISTXT 0
545 #endif
546 #endif
547
548 /* <sys/syslimits.h> */
549
550 #ifndef LINE_MAX
551 #define LINE_MAX 2048
552 #endif
553
554 /* <sys/time.h> */
555
556 #ifndef timercmp
557 #define timercmp(tvp, uvp, cmp) \
558 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
559 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
560 ((tvp)->tv_sec cmp (uvp)->tv_sec))
561 #endif
562 #ifndef timeradd
563 #define timeradd(tvp, uvp, vvp) \
564 do { \
565 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
566 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
567 if ((vvp)->tv_usec >= 1000000) { \
568 (vvp)->tv_sec++; \
569 (vvp)->tv_usec -= 1000000; \
570 } \
571 } while (/* CONSTCOND */ 0)
572 #endif
573 #ifndef timersub
574 #define timersub(tvp, uvp, vvp) \
575 do { \
576 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
577 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
578 if ((vvp)->tv_usec < 0) { \
579 (vvp)->tv_sec--; \
580 (vvp)->tv_usec += 1000000; \
581 } \
582 } while (/* CONSTCOND */ 0)
583 #endif
584
585 /* <sys/types.h> */
586
587 #if !HAVE_U_QUAD_T
588 /* #define, not typedef, as quad_t exists as a struct on some systems */
589 #define quad_t long long
590 #define u_quad_t unsigned long long
591 #define strtoq strtoll
592 #define strtouq strtoull
593 #endif
594
595 #endif /* !__NETBSD_COMPAT_DEFS_H__ */
596