compat_defs.h revision 1.24 1 /* $NetBSD: compat_defs.h,v 1.24 2003/01/27 01:17:47 uwe 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 /* Prototypes for replacement functions. */
114
115 #if !HAVE_ASPRINTF
116 int asprintf(char **, const char *, ...);
117 #endif
118
119 #if !HAVE_ASNPRINTF
120 int asnprintf(char **, size_t, const char *, ...);
121 #endif
122
123 #if !HAVE_BASENAME
124 char *basename(char *);
125 #endif
126
127 #if !HAVE_DECL_OPTIND
128 int getopt(int, char *const *, const char *);
129 extern char *optarg;
130 extern int optind, opterr, optopt;
131 #endif
132
133 #if !HAVE_DIRNAME
134 char *dirname(char *);
135 #endif
136
137 #if !HAVE_DIRFD
138 #if HAVE_DIR_DD_FD
139 #define dirfd(dirp) ((dirp)->dd_fd)
140 #else
141 #error cannot figure out how to turn a DIR * into a fd
142 #endif
143 #endif
144
145 #if !HAVE_ERR_H
146 void err(int, const char *, ...);
147 void errx(int, const char *, ...);
148 void warn(const char *, ...);
149 void warnx(const char *, ...);
150 #endif
151
152 #if !HAVE_FGETLN
153 char *fgetln(FILE *, size_t *);
154 #endif
155
156 #if !HAVE_FLOCK
157 # define LOCK_SH 0x01
158 # define LOCK_EX 0x02
159 # define LOCK_NB 0x04
160 # define LOCK_UN 0x08
161 int flock(int, int);
162 #endif
163
164 #if !HAVE_FPARSELN
165 # define FPARSELN_UNESCESC 0x01
166 # define FPARSELN_UNESCCONT 0x02
167 # define FPARSELN_UNESCCOMM 0x04
168 # define FPARSELN_UNESCREST 0x08
169 # define FPARSELN_UNESCALL 0x0f
170 char *fparseln(FILE *, size_t *, size_t *, const char [3], int);
171 #endif
172
173 #if !HAVE_ISSETUGID
174 int issetugid(void);
175 #endif
176
177 #if !HAVE_ISBLANK && !defined(isblank)
178 #define isblank(x) ((x) == ' ' || (x) == '\t')
179 #endif
180
181 #if !HAVE_LCHFLAGS
182 int lchflags(const char *, u_long);
183 #endif
184
185 #if !HAVE_LCHMOD
186 int lchmod(const char *, mode_t);
187 #endif
188
189 #if !HAVE_LCHOWN
190 int lchown(const char *, uid_t, gid_t);
191 #endif
192
193 #if !HAVE_MACHINE_BSWAP_H
194 #define bswap16(x) ((((x) << 8) & 0xff00) | (((x) >> 8) & 0x00ff))
195
196 #define bswap32(x) ((((x) << 24) & 0xff000000) | \
197 (((x) << 8) & 0x00ff0000) | \
198 (((x) >> 8) & 0x0000ff00) | \
199 (((x) >> 24) & 0x000000ff))
200
201 #define bswap64(x) (((u_int64_t)bswap32((x)) << 32) | \
202 ((u_int64_t)bswap32((x) >> 32)))
203 #endif
204
205 #if !HAVE_MKSTEMP
206 int mkstemp(char *);
207 #endif
208
209 #if !HAVE_MKDTEMP
210 char *mkdtemp(char *);
211 #endif
212
213 #if !HAVE_MKSTEMP || !HAVE_MKDTEMP
214 /* This is a prototype for the internal function. */
215 int gettemp(char *, int *, int);
216 #endif
217
218 #if !HAVE_PREAD
219 ssize_t pread(int, void *, size_t, off_t);
220 #endif
221
222 #if !HAVE_PWCACHE_USERDB
223 int uid_from_user(const char *, uid_t *);
224 int pwcache_userdb(int (*)(int), void (*)(void),
225 struct passwd * (*)(const char *), struct passwd * (*)(uid_t));
226 int gid_from_group(const char *, gid_t *);
227 int pwcache_groupdb(int (*)(int), void (*)(void),
228 struct group * (*)(const char *), struct group * (*)(gid_t));
229 #endif
230
231 #if !HAVE_PWRITE
232 ssize_t pwrite(int, const void *, size_t, off_t);
233 #endif
234
235 #if !HAVE_SETENV
236 int setenv(const char *, const char *, int);
237 #endif
238
239 #if !HAVE_DECL_SETGROUPENT
240 int setgroupent(int);
241 #endif
242
243 #if !HAVE_DECL_SETPASSENT
244 int setpassent(int);
245 #endif
246
247 #if !HAVE_SETPROGNAME
248 const char *getprogname(void);
249 void setprogname(const char *);
250 #endif
251
252 #if !HAVE_SNPRINTF
253 int snprintf(char *, size_t, const char *, ...);
254 #endif
255
256 #if !HAVE_STRLCAT
257 size_t strlcat(char *, const char *, size_t);
258 #endif
259
260 #if !HAVE_STRLCPY
261 size_t strlcpy(char *, const char *, size_t);
262 #endif
263
264 #if !HAVE_STRSEP
265 char *strsep(char **, const char *);
266 #endif
267
268 #if !HAVE_STRSUFTOLL
269 long long strsuftoll(const char *, const char *, long long, long long);
270 long long strsuftollx(const char *, const char *,
271 long long, long long, char *, size_t);
272 #endif
273
274 #if !HAVE_STRTOLL
275 long long strtoll(const char *, char **, int);
276 #endif
277
278 #if !HAVE_USER_FROM_UID
279 const char *user_from_uid(uid_t, int);
280 const char *group_from_gid(gid_t, int);
281 #endif
282
283 #if !HAVE_VASPRINTF
284 int vasprintf(char **, const char *, va_list);
285 #endif
286
287 #if !HAVE_VASNPRINTF
288 int vasnprintf(char **, size_t, const char *, va_list);
289 #endif
290
291 #if !HAVE_VSNPRINTF
292 int vsnprintf(char *, size_t, const char *, va_list);
293 #endif
294
295 /*
296 * getmode() and setmode() are always defined, as these function names
297 * exist but with very different meanings on other OS's. The compat
298 * versions here simply accept an octal mode number; the "u+x,g-w" type
299 * of syntax is not accepted.
300 */
301
302 #define getmode __nbcompat_getmode
303 #define setmode __nbcompat_setmode
304
305 mode_t getmode(const void *, mode_t);
306 void *setmode(const char *);
307
308 /* Eliminate assertions embedded in binaries. */
309
310 #undef _DIAGASSERT
311 #define _DIAGASSERT(x)
312
313 /* Heimdal expects this one. */
314
315 #undef RCSID
316 #define RCSID(x)
317
318 /* pwd_mkdb expects this one. */
319
320 #undef __SCCSID
321 #define __SCCSID(x)
322
323 /* Some definitions not available on all systems. */
324
325 /* <errno.h> */
326
327 #ifndef EFTYPE
328 #define EFTYPE EIO
329 #endif
330
331 /* <fcntl.h> */
332
333 #ifndef O_EXLOCK
334 #define O_EXLOCK 0
335 #endif
336 #ifndef O_SHLOCK
337 #define O_SHLOCK 0
338 #endif
339
340 /* <limits.h> */
341
342 #ifndef UID_MAX
343 #define UID_MAX 32767
344 #endif
345 #ifndef GID_MAX
346 #define GID_MAX UID_MAX
347 #endif
348
349 #ifndef UQUAD_MAX
350 #define UQUAD_MAX ((u_quad_t)-1)
351 #endif
352 #ifndef QUAD_MAX
353 #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
354 #endif
355 #ifndef QUAD_MIN
356 #define QUAD_MIN ((quad_t)(~QUAD_MAX))
357 #endif
358 #ifndef ULLONG_MAX
359 #define ULLONG_MAX ((unsigned long long)-1)
360 #endif
361 #ifndef LLONG_MAX
362 #define LLONG_MAX ((long long)(ULLONG_MAX >> 1))
363 #endif
364 #ifndef LLONG_MIN
365 #define LLONG_MIN ((long long)(~LLONG_MAX))
366 #endif
367
368 /* <paths.h> */
369
370 #ifndef _PATH_BSHELL
371 #define _PATH_BSHELL PATH_BSHELL
372 #endif
373 #ifndef _PATH_DEFPATH
374 #define _PATH_DEFPATH "/usr/bin:/bin:/usr/local/bin"
375 #endif
376 #ifndef _PATH_DEV
377 #define _PATH_DEV "/dev/"
378 #endif
379 #ifndef _PATH_DEVNULL
380 #define _PATH_DEVNULL _PATH_DEV "null"
381 #endif
382 #ifndef _PATH_TMP
383 #define _PATH_TMP "/tmp/"
384 #endif
385 #ifndef _PATH_DEFTAPE
386 #define _PATH_DEFTAPE "/dev/nrst0"
387 #endif
388
389 /* <stdarg.h> */
390
391 #ifndef _BSD_VA_LIST_
392 #define _BSD_VA_LIST_ va_list
393 #endif
394
395 /* <stdint.h> */
396
397 #ifndef UINT32_MAX
398 #define UINT32_MAX 0xffffffffU
399 #endif
400
401 /* <stdlib.h> */
402
403 #ifndef __GNUC__
404 # if HAVE_ALLOCA_H
405 # include <alloca.h>
406 # else
407 # ifndef alloca /* predefined by HP cc +Olibcalls */
408 char *alloca ();
409 # endif
410 # endif
411 #endif
412
413 /* <sys/endian.h> */
414
415 #ifndef HAVE_SYS_ENDIAN_H
416 #if WORDS_BIGENDIAN
417 #define htobe16(x) (x)
418 #define htobe32(x) (x)
419 #define htobe64(x) (x)
420 #define htole16(x) bswap16((u_int16_t)(x))
421 #define htole32(x) bswap32((u_int32_t)(x))
422 #define htole64(x) bswap64((u_int64_t)(x))
423 #else
424 #define htobe16(x) bswap16((u_int16_t)(x))
425 #define htobe32(x) bswap32((u_int32_t)(x))
426 #define htobe64(x) bswap64((u_int64_t)(x))
427 #define htole16(x) (x)
428 #define htole32(x) (x)
429 #define htole64(x) (x)
430 #endif
431 #define be16toh(x) htobe16(x)
432 #define be32toh(x) htobe32(x)
433 #define be64toh(x) htobe64(x)
434 #define le16toh(x) htole16(x)
435 #define le32toh(x) htole32(x)
436 #define le64toh(x) htole64(x)
437 #endif
438
439 /* <sys/mman.h> */
440
441 #ifndef MAP_FILE
442 #define MAP_FILE 0
443 #endif
444
445 /* HP-UX has MAP_ANONYMOUS but not MAP_ANON */
446 #ifndef MAP_ANON
447 #ifdef MAP_ANONYMOUS
448 #define MAP_ANON MAP_ANONYMOUS
449 #endif
450 #endif
451
452 /* <sys/param.h> */
453
454 #undef BIG_ENDIAN
455 #undef LITTLE_ENDIAN
456 #define BIG_ENDIAN 4321
457 #define LITTLE_ENDIAN 1234
458
459 #undef BYTE_ORDER
460 #if WORDS_BIGENDIAN
461 #define BYTE_ORDER BIG_ENDIAN
462 #else
463 #define BYTE_ORDER LITTLE_ENDIAN
464 #endif
465
466 #ifndef DEV_BSIZE
467 #define DEV_BSIZE (1 << 9)
468 #endif
469
470 #undef MIN
471 #undef MAX
472 #define MIN(a,b) ((a) < (b) ? (a) : (b))
473 #define MAX(a,b) ((a) > (b) ? (a) : (b))
474
475 #ifndef MAXBSIZE
476 #define MAXBSIZE (64 * 1024)
477 #endif
478 #ifndef MAXFRAG
479 #define MAXFRAG 8
480 #endif
481 #ifndef MAXPHYS
482 #define MAXPHYS (64 * 1024)
483 #endif
484
485 /* XXX needed by makefs; this should be done in a better way */
486 #undef btodb
487 #define btodb(x) ((x) << 9)
488
489 #undef setbit
490 #undef clrbit
491 #undef isset
492 #undef isclr
493 #define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY))
494 #define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
495 #define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY)))
496 #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
497
498 #ifndef powerof2
499 #define powerof2(x) ((((x)-1)&(x))==0)
500 #endif
501
502 #undef roundup
503 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
504
505 /* <sys/stat.h> */
506
507 #ifndef ALLPERMS
508 #define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
509 #endif
510 #ifndef DEFFILEMODE
511 #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
512 #endif
513 #ifndef S_ISTXT
514 #ifdef S_ISVTX
515 #define S_ISTXT S_ISVTX
516 #else
517 #define S_ISTXT 0
518 #endif
519 #endif
520
521 /* <sys/syslimits.h> */
522
523 #ifndef LINE_MAX
524 #define LINE_MAX 2048
525 #endif
526
527 /* <sys/time.h> */
528
529 #ifndef timercmp
530 #define timercmp(tvp, uvp, cmp) \
531 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
532 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
533 ((tvp)->tv_sec cmp (uvp)->tv_sec))
534 #endif
535 #ifndef timeradd
536 #define timeradd(tvp, uvp, vvp) \
537 do { \
538 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
539 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
540 if ((vvp)->tv_usec >= 1000000) { \
541 (vvp)->tv_sec++; \
542 (vvp)->tv_usec -= 1000000; \
543 } \
544 } while (/* CONSTCOND */ 0)
545 #endif
546 #ifndef timersub
547 #define timersub(tvp, uvp, vvp) \
548 do { \
549 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
550 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
551 if ((vvp)->tv_usec < 0) { \
552 (vvp)->tv_sec--; \
553 (vvp)->tv_usec += 1000000; \
554 } \
555 } while (/* CONSTCOND */ 0)
556 #endif
557
558 /* <sys/types.h> */
559
560 #if !HAVE_U_QUAD_T
561 /* #define, not typedef, as quad_t exists as a struct on some systems */
562 #define quad_t long long
563 #define u_quad_t unsigned long long
564 #define strtoq strtoll
565 #define strtouq strtoull
566 #endif
567
568 #endif /* !__NETBSD_COMPAT_DEFS_H__ */
569