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 #ifndef __dead
60 #define __dead __attribute__ ((__noreturn__))
61 #endif
62 
63 #ifndef __OpenBSD__
64 #define pledge(s, p) (0)
65 #define unveil(s, p) (0)
66 #endif
67 
68 #ifndef __FreeBSD__
69 #define cap_enter() (0)
70 #endif
71 
72 #ifndef HAVE_LINUX_LANDLOCK_H
73 #define landlock_no_fs() (0)
74 #else
75 int	landlock_no_fs(void);
76 #endif
77 
78 #ifndef INFTIM
79 #define INFTIM -1
80 #endif
81 
82 #ifndef HAVE_BSD_UUID
83 #include <uuid/uuid.h>
84 #define uuid_s_ok 0
85 #define uuid_s_bad_version  1
86 #define uuid_s_invalid_string_uuid 2
87 #define uuid_s_no_memory  3
88 
89 /* Length of a node address (an IEEE 802 address). */
90 #define _UUID_NODE_LEN  6
91 
92 struct uuid {
93 	uint32_t time_low;
94 	uint16_t time_mid;
95 	uint16_t time_hi_and_version;
96 	uint8_t  clock_seq_hi_and_reserved;
97 	uint8_t  clock_seq_low;
98 	uint8_t  node[_UUID_NODE_LEN];
99 };
100 
101 int32_t uuid_equal(struct uuid *, struct uuid *, uint32_t *);
102 int32_t uuid_is_nil(struct uuid *, uint32_t *);
103 void uuid_create(uuid_t *, uint32_t *);
104 void uuid_create_nil(struct uuid *, uint32_t *);
105 void uuid_from_string(const char *, uuid_t *, uint32_t *);
106 void uuid_to_string(uuid_t *, char **, uint32_t *);
107 #else
108 #include <uuid.h>
109 #endif
110 
111 #ifdef HAVE_STDINT_H
112 #include <stdint.h>
113 #else
114 #include <inttypes.h>
115 #endif
116 
117 /* Only include sys/queue.h if it's not found on the system (libbsd provides
118  * a copy of this).
119  */
120 #if !defined(HAVE_QUEUE_H) && !defined(HAVE_LIBBSD)
121 #include "compat/queue.h"
122 #else
123 #include <sys/queue.h>
124 #endif
125 
126 #ifdef HAVE_TREE_H
127 #include <sys/tree.h>
128 #else
129 #include "compat/tree.h"
130 #endif
131 
132 #ifdef HAVE_UTIL_H
133 #include <util.h>
134 #endif
135 
136 #ifdef HAVE_LIBUTIL_H
137 #include <libutil.h>
138 #endif
139 
140 #ifdef HAVE_IMSG
141 #else
142 #include "compat/imsg.h"
143 #endif
144 
145 #ifdef HAVE_SIPHASH
146 #include <siphash.h>
147 #else
148 #include "compat/siphash.h"
149 #endif
150 
151 /* Include Apple-specific headers.  Mostly for crypto.*/
152 #if defined(__APPLE__)
153 #define COMMON_DIGEST_FOR_OPENSSL
154 #include <CommonCrypto/CommonDigest.h>
155 #endif
156 
157 #if defined(HAVE_LIBCRYPTO) && !defined(__APPLE__) && !defined(__DragonFly__)
158 #include <sha1.h>
159 #elif !defined(__APPLE__) && !defined(__DragonFly__)
160 #include <sha.h>
161 #elif defined(__DragonFly__)
162 #include <openssl/sha.h>
163 #endif
164 
165 #if !defined(HAVE_LIBCRYPTO) || defined(__APPLE__) || defined(__DragonFly__)
166 #define SHA1_DIGEST_LENGTH		SHA_DIGEST_LENGTH
167 #define SHA1_DIGEST_STRING_LENGTH	(SHA1_DIGEST_LENGTH * 2 + 1)
168 
169 #define SHA1_CTX	SHA_CTX
170 #define SHA1Init	SHA1_Init
171 #define SHA1Update	SHA1_Update
172 #define SHA1Final	SHA1_Final
173 #endif
174 
175 #ifndef HAVE_ASPRINTF
176 /* asprintf.c */
177 int		 asprintf(char **, const char *, ...);
178 int		 vasprintf(char **, const char *, va_list);
179 #endif
180 
181 #ifndef HAVE_EXPLICIT_BZERO
182 /* explicit_bzero.c */
183 void		 explicit_bzero(void *, size_t);
184 #endif
185 
186 #ifndef HAVE_GETDTABLECOUNT
187 /* getdtablecount.c */
188 int		 getdtablecount(void);
189 #endif
190 
191 #ifndef HAVE_CLOSEFROM
192 /* closefrom.c */
193 void		 closefrom(int);
194 #endif
195 
196 #if defined (__FreeBSD__)
197 #define closefrom(fd) (closefrom(fd), 0)
198 #endif
199 
200 #ifndef HAVE_STRSEP
201 /* strsep.c */
202 char		*strsep(char **, const char *);
203 #endif
204 
205 #ifndef HAVE_STRTONUM
206 /* strtonum.c */
207 long long	 strtonum(const char *, long long, long long, const char **);
208 #endif
209 
210 #ifndef HAVE_STRLCPY
211 /* strlcpy.c */
212 size_t	 	 strlcpy(char *, const char *, size_t);
213 #endif
214 
215 #ifndef HAVE_STRLCAT
216 /* strlcat.c */
217 size_t	 	 strlcat(char *, const char *, size_t);
218 #endif
219 
220 #ifndef HAVE_STRNLEN
221 /* strnlen.c */
222 size_t		 strnlen(const char *, size_t);
223 #endif
224 
225 #ifndef HAVE_STRNDUP
226 /* strndup.c */
227 char		*strndup(const char *, size_t);
228 #endif
229 
230 #ifndef HAVE_GETPROGNAME
231 /* getprogname.c */
232 const char	*getprogname(void);
233 #endif
234 
235 #ifndef HAVE_GETLINE
236 /* getline.c */
237 ssize_t		 getline(char **, size_t *, FILE *);
238 #endif
239 
240 #ifndef HAVE_FREEZERO
241 /* freezero.c */
242 void		 freezero(void *, size_t);
243 #endif
244 
245 #ifndef HAVE_GETDTABLECOUNT
246 /* getdtablecount.c */
247 int		 getdtablecount(void);
248 #endif
249 
250 #ifndef HAVE_REALLOCARRAY
251 /* reallocarray.c */
252 void		*reallocarray(void *, size_t, size_t);
253 #endif
254 
255 #ifndef HAVE_RECALLOCARRAY
256 /* recallocarray.c */
257 void		*recallocarray(void *, size_t, size_t, size_t);
258 #endif
259 
260 #ifndef HAVE_FMT_SCALED
261 /* fmt_scaled.c */
262 int fmt_scaled(long long, char *);
263 int scan_scaled(char *, long long *);
264 #define FMT_SCALED_STRSIZE	7  /* minus sign, 4 digits, suffix, null byte */
265 #endif
266 
267 #ifndef HAVE_LIBBSD
268 /* getopt.c */
269 extern int	BSDopterr;
270 extern int	BSDoptind;
271 extern int	BSDoptopt;
272 extern int	BSDoptreset;
273 extern char    *BSDoptarg;
274 int	BSDgetopt(int, char *const *, const char *);
275 #define getopt(ac, av, o)  BSDgetopt(ac, av, o)
276 #define opterr             BSDopterr
277 #define optind             BSDoptind
278 #define optopt             BSDoptopt
279 #define optreset           BSDoptreset
280 #define optarg             BSDoptarg
281 #endif
282 #endif
283 
284 /* Check for some of the non-portable timespec*() functions.
285  * This should largely come from libbsd for systems which
286  * aren't BSD, but this will depend on how old the library
287  * is.
288  */
289 #ifndef timespecisset
290 #define	timespecisset(tsp) \
291 	((tsp)->tv_sec || (tsp)->tv_nsec)
292 #endif
293 
294 #ifndef timespecsub
295 #define	timespecsub(tsp, usp, vsp)					\
296 	do {								\
297 		(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;		\
298 		(vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;	\
299 		if ((vsp)->tv_nsec < 0) {				\
300 			(vsp)->tv_sec--;				\
301 			(vsp)->tv_nsec += 1000000000L;			\
302 		}							\
303 	} while (0)
304 #endif
305 
306 #ifndef timespeccmp
307 #define timespeccmp(tvp, uvp, cmp) 					\
308 (((tvp)->tv_sec == (uvp)->tv_sec) ? 					\
309 	((tvp)->tv_nsec cmp (uvp)->tv_nsec) : 				\
310 	((tvp)->tv_sec cmp (uvp)->tv_sec))
311 #endif
312 
313 #ifndef HAVE_BSD_MERGESORT
314 /* mergesort.c */
315 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
316 #endif