1 #ifndef _GOT_COMPAT_H
2 #define _GOT_COMPAT_H
3 
4 #include <sys/types.h>
5 #include <sys/ioctl.h>
6 #include <sys/uio.h>
7 #if defined(__FreeBSD__)
8 #include <sys/endian.h>
9 #include <sys/capsicum.h>
10 #elif defined(__APPLE__)
11 #include <machine/endian.h>
12 #include <libkern/OSByteOrder.h>
13 #include "compat/bsd-poll.h"
14 
15 #define FMT_SCALED_STRSIZE	7  /* minus sign, 4 digits, suffix, null byte */
16 
17 #define htobe16(x) OSSwapHostToBigInt16(x)
18 #define htole16(x) OSSwapHostToLittleInt16(x)
19 #define be16toh(x) OSSwapBigToHostInt16(x)
20 #define le16toh(x) OSSwapLittleToHostInt16(x)
21 
22 #define htobe32(x) OSSwapHostToBigInt32(x)
23 #define htole32(x) OSSwapHostToLittleInt32(x)
24 #define be32toh(x) OSSwapBigToHostInt32(x)
25 #define le32toh(x) OSSwapLittleToHostInt32(x)
26 
27 #define htobe64(x) OSSwapHostToBigInt64(x)
28 #define htole64(x) OSSwapHostToLittleInt64(x)
29 #define be64toh(x) OSSwapBigToHostInt64(x)
30 #define le64toh(x) OSSwapLittleToHostInt64(x)
31 
32 #define st_atim st_atimespec
33 #define st_ctim st_ctimespec
34 #define st_mtim st_mtimespec
35 
36 #else /* Linux, etc... */
37 #include <endian.h>
38 #endif
39 
40 #include <fnmatch.h>
41 #include <limits.h>
42 #include <stdio.h>
43 #include <stdint.h>
44 
45 /* For flock. */
46 #ifndef O_EXLOCK
47 #define O_EXLOCK 0
48 #endif
49 
50 #ifndef HAVE_FLOCK
51 #define LOCK_SH 0
52 #define LOCK_EX 0
53 #define LOCK_NB 0
54 #define flock(fd, op) (0)
55 #else
56 #include <sys/file.h>
57 #endif
58 
59 /* POSIX doesn't define WAIT_ANY, so provide it if it's not found. */
60 #ifndef WAIT_ANY
61 #define WAIT_ANY (-1)
62 #endif
63 
64 /* SOCK_NONBLOCK isn't available across BSDs... */
65 #ifndef SOCK_NONBLOCK
66 #define SOCK_NONBLOCK 00004000
67 #endif
68 
69 /* On FreeBSD (and possibly others), EAI_NODATA was removed, in favour of
70  * using EAI_NONAME.
71  */
72 #ifndef EAI_NODATA
73 #define EAI_NODATA EAI_NONAME
74 #endif
75 
76 #ifndef __dead
77 #define __dead __attribute__ ((__noreturn__))
78 #endif
79 
80 #ifndef __unused
81 #define __unused __attribute__ ((__unused__))
82 #endif
83 
84 #ifndef __OpenBSD__
85 #define pledge(s, p) (0)
86 #define unveil(s, p) (0)
87 #endif
88 
89 #ifndef __FreeBSD__
90 #define cap_enter() (0)
91 #endif
92 
93 #ifndef HAVE_SETRESGID
94 #define setresgid(a, b, c) (0)
95 #endif
96 
97 #ifndef HAVE_SETRESUID
98 #define setresuid(a, b, c) (0)
99 #endif
100 
101 #ifndef HAVE_LINUX_LANDLOCK_H
102 #define landlock_no_fs() (0)
103 #else
104 int	landlock_no_fs(void);
105 #endif
106 
107 #ifndef INFTIM
108 #define INFTIM -1
109 #endif
110 
111 #ifndef HAVE_BSD_UUID
112 #include <uuid/uuid.h>
113 #define uuid_s_ok 0
114 #define uuid_s_bad_version  1
115 #define uuid_s_invalid_string_uuid 2
116 #define uuid_s_no_memory  3
117 
118 /* Length of a node address (an IEEE 802 address). */
119 #define _UUID_NODE_LEN  6
120 
121 struct uuid {
122 	uint32_t time_low;
123 	uint16_t time_mid;
124 	uint16_t time_hi_and_version;
125 	uint8_t  clock_seq_hi_and_reserved;
126 	uint8_t  clock_seq_low;
127 	uint8_t  node[_UUID_NODE_LEN];
128 };
129 
130 int32_t uuid_equal(struct uuid *, struct uuid *, uint32_t *);
131 int32_t uuid_is_nil(struct uuid *, uint32_t *);
132 void uuid_create(uuid_t *, uint32_t *);
133 void uuid_create_nil(struct uuid *, uint32_t *);
134 void uuid_from_string(const char *, uuid_t *, uint32_t *);
135 void uuid_to_string(uuid_t *, char **, uint32_t *);
136 #else
137 #include <uuid.h>
138 #endif
139 
140 #ifdef HAVE_STDINT_H
141 #include <stdint.h>
142 #else
143 #include <inttypes.h>
144 #endif
145 
146 #ifdef HAVE_QUEUE_H
147 #include <sys/queue.h>
148 #else
149 #include "compat/queue.h"
150 #endif
151 
152 #ifdef HAVE_TREE_H
153 #include <sys/tree.h>
154 #else
155 #include "compat/tree.h"
156 #endif
157 
158 #ifdef HAVE_UTIL_H
159 #include <util.h>
160 #endif
161 
162 #ifdef HAVE_LIBUTIL_H
163 #include <libutil.h>
164 #endif
165 
166 #ifdef HAVE_IMSG
167 #else
168 #include "compat/imsg.h"
169 #endif
170 
171 #ifdef HAVE_SIPHASH
172 #include <siphash.h>
173 #else
174 #include "compat/siphash.h"
175 #endif
176 
177 /* Include Apple-specific headers.  Mostly for crypto.*/
178 #if defined(__APPLE__)
179 #define COMMON_DIGEST_FOR_OPENSSL
180 #include <CommonCrypto/CommonDigest.h>
181 #endif
182 
183 #if defined(HAVE_LIBCRYPTO) && !defined(__APPLE__) && !defined(__DragonFly__)
184 #include <sha1.h>
185 #elif !defined(__APPLE__) && !defined(__DragonFly__)
186 #include <sha.h>
187 #elif defined(__DragonFly__)
188 #include <openssl/sha.h>
189 #endif
190 
191 #if !defined(HAVE_LIBCRYPTO) || defined(__APPLE__) || defined(__DragonFly__)
192 #define SHA1_DIGEST_LENGTH		SHA_DIGEST_LENGTH
193 #define SHA1_DIGEST_STRING_LENGTH	(SHA1_DIGEST_LENGTH * 2 + 1)
194 
195 #define SHA1_CTX	SHA_CTX
196 #define SHA1Init	SHA1_Init
197 #define SHA1Update	SHA1_Update
198 #define SHA1Final	SHA1_Final
199 #endif
200 
201 #ifndef HAVE_ASPRINTF
202 /* asprintf.c */
203 int		 asprintf(char **, const char *, ...);
204 int		 vasprintf(char **, const char *, va_list);
205 #endif
206 
207 #ifndef HAVE_EXPLICIT_BZERO
208 /* explicit_bzero.c */
209 void		 explicit_bzero(void *, size_t);
210 #endif
211 
212 #ifndef HAVE_GETDTABLECOUNT
213 /* getdtablecount.c */
214 int		 getdtablecount(void);
215 #endif
216 
217 #ifndef HAVE_CLOSEFROM
218 /* closefrom.c */
219 void		 closefrom(int);
220 #endif
221 
222 #if defined (__FreeBSD__)
223 #define closefrom(fd) (closefrom(fd), 0)
224 #endif
225 
226 #ifndef HAVE_STRSEP
227 /* strsep.c */
228 char		*strsep(char **, const char *);
229 #endif
230 
231 #ifndef HAVE_STRTONUM
232 /* strtonum.c */
233 long long	 strtonum(const char *, long long, long long, const char **);
234 #endif
235 
236 #ifndef HAVE_STRLCPY
237 /* strlcpy.c */
238 size_t	 	 strlcpy(char *, const char *, size_t);
239 #endif
240 
241 #ifndef HAVE_STRLCAT
242 /* strlcat.c */
243 size_t	 	 strlcat(char *, const char *, size_t);
244 #endif
245 
246 #ifndef HAVE_STRNLEN
247 /* strnlen.c */
248 size_t		 strnlen(const char *, size_t);
249 #endif
250 
251 #ifndef HAVE_STRNDUP
252 /* strndup.c */
253 char		*strndup(const char *, size_t);
254 #endif
255 
256 #ifndef HAVE_GETPROGNAME
257 /* getprogname.c */
258 const char	*getprogname(void);
259 #endif
260 
261 #ifndef HAVE_GETLINE
262 /* getline.c */
263 ssize_t		 getline(char **, size_t *, FILE *);
264 #endif
265 
266 #ifndef HAVE_FREEZERO
267 /* freezero.c */
268 void		 freezero(void *, size_t);
269 #endif
270 
271 #ifndef HAVE_GETDTABLECOUNT
272 /* getdtablecount.c */
273 int		 getdtablecount(void);
274 #endif
275 
276 #ifndef HAVE_REALLOCARRAY
277 /* reallocarray.c */
278 void		*reallocarray(void *, size_t, size_t);
279 #endif
280 
281 #ifndef HAVE_RECALLOCARRAY
282 /* recallocarray.c */
283 void		*recallocarray(void *, size_t, size_t, size_t);
284 #endif
285 
286 #ifndef HAVE_SETPROCTITLE
287 /* setproctitle.c */
288 void 		 setproctitle(const char *, ...);
289 #endif
290 
291 #ifndef HAVE_FMT_SCALED
292 /* fmt_scaled.c */
293 int fmt_scaled(long long, char *);
294 int scan_scaled(char *, long long *);
295 #define FMT_SCALED_STRSIZE	7  /* minus sign, 4 digits, suffix, null byte */
296 #endif
297 
298 #ifndef HAVE_LIBBSD
299 /* getopt.c */
300 extern int	BSDopterr;
301 extern int	BSDoptind;
302 extern int	BSDoptopt;
303 extern int	BSDoptreset;
304 extern char    *BSDoptarg;
305 int	BSDgetopt(int, char *const *, const char *);
306 #define getopt(ac, av, o)  BSDgetopt(ac, av, o)
307 #define opterr             BSDopterr
308 #define optind             BSDoptind
309 #define optopt             BSDoptopt
310 #define optreset           BSDoptreset
311 #define optarg             BSDoptarg
312 #endif
313 #endif
314 
315 /* Check for some of the non-portable timespec*() functions.
316  * This should largely come from libbsd for systems which
317  * aren't BSD, but this will depend on how old the library
318  * is.
319  */
320 #ifndef timespecisset
321 #define	timespecisset(tsp) \
322 	((tsp)->tv_sec || (tsp)->tv_nsec)
323 #endif
324 
325 #ifndef timespecsub
326 #define	timespecsub(tsp, usp, vsp)					\
327 	do {								\
328 		(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;		\
329 		(vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;	\
330 		if ((vsp)->tv_nsec < 0) {				\
331 			(vsp)->tv_sec--;				\
332 			(vsp)->tv_nsec += 1000000000L;			\
333 		}							\
334 	} while (0)
335 #endif
336 
337 #ifndef timespeccmp
338 #define timespeccmp(tvp, uvp, cmp) 					\
339 (((tvp)->tv_sec == (uvp)->tv_sec) ? 					\
340 	((tvp)->tv_nsec cmp (uvp)->tv_nsec) : 				\
341 	((tvp)->tv_sec cmp (uvp)->tv_sec))
342 #endif
343 
344 #ifndef HAVE_BSD_MERGESORT
345 /* mergesort.c */
346 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
347 #endif