compat.h

   1 /*
   2  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
   3  *
   4  * Permission to use, copy, modify, and distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  13  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  14  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef COMPAT_H
  18 #define COMPAT_H
  19
  20 #include <sys/types.h>
  21 #include <sys/ioctl.h>
  22 #include <sys/uio.h>
  23
  24 #include <fnmatch.h>
  25 #include <limits.h>
  26 #include <stdio.h>
  27 #include <termios.h>
  28 #include <wchar.h>
  29
  30 #ifdef HAVE_EVENT2_EVENT_H
  31 #include <event2/event.h>
  32 #include <event2/event_compat.h>
  33 #include <event2/event_struct.h>
  34 #include <event2/buffer.h>
  35 #include <event2/buffer_compat.h>
  36 #include <event2/bufferevent.h>
  37 #include <event2/bufferevent_struct.h>
  38 #include <event2/bufferevent_compat.h>
  39 #else
  40 #include <event.h>
  41 #endif
  42
  43 #ifdef HAVE_MALLOC_TRIM
  44 #include <malloc.h>
  45 #endif
  46
  47 #ifdef HAVE_UTF8PROC
  48 #include <utf8proc.h>
  49 #endif
  50
  51 #ifndef __GNUC__
  52 #define __attribute__(a)
  53 #endif
  54
  55 #ifdef BROKEN___DEAD
  56 #undef __dead
  57 #endif
  58
  59 #ifndef __unused
  60 #define __unused __attribute__ ((__unused__))
  61 #endif
  62 #ifndef __dead
  63 #define __dead __attribute__ ((__noreturn__))
  64 #endif
  65 #ifndef __packed
  66 #define __packed __attribute__ ((__packed__))
  67 #endif
  68 #ifndef __weak
  69 #define __weak __attribute__ ((__weak__))
  70 #endif
  71
  72 #ifndef ECHOPRT
  73 #define ECHOPRT 0
  74 #endif
  75
  76 #ifndef ACCESSPERMS
  77 #define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO)
  78 #endif
  79
  80 #if !defined(FIONREAD) && defined(__sun)
  81 #include <sys/filio.h>
  82 #endif
  83
  84 #ifdef HAVE_ERR_H
  85 #include <err.h>
  86 #else
  87 void    err(int, const char *, ...);
  88 void    errx(int, const char *, ...);
  89 void    warn(const char *, ...);
  90 void    warnx(const char *, ...);
  91 #endif
  92
  93 #ifdef HAVE_PATHS_H
  94 #include <paths.h>
  95 #endif
  96
  97 #ifndef _PATH_BSHELL
  98 #define _PATH_BSHELL    "/bin/sh"
  99 #endif
 100
 101 #ifndef _PATH_TMP
 102 #define _PATH_TMP       "/tmp/"
 103 #endif
 104
 105 #ifndef _PATH_DEVNULL
 106 #define _PATH_DEVNULL   "/dev/null"
 107 #endif
 108
 109 #ifndef _PATH_TTY
 110 #define _PATH_TTY       "/dev/tty"
 111 #endif
 112
 113 #ifndef _PATH_DEV
 114 #define _PATH_DEV       "/dev/"
 115 #endif
 116
 117 #ifndef _PATH_DEFPATH
 118 #define _PATH_DEFPATH   "/usr/bin:/bin"
 119 #endif
 120
 121 #ifndef _PATH_VI
 122 #define _PATH_VI        "/usr/bin/vi"
 123 #endif
 124
 125 #ifndef __OpenBSD__
 126 #define pledge(s, p) (0)
 127 #endif
 128
 129 #ifndef IMAXBEL
 130 #define IMAXBEL 0
 131 #endif
 132
 133 #ifdef HAVE_STDINT_H
 134 #include <stdint.h>
 135 #else
 136 #include <inttypes.h>
 137 #endif
 138
 139 #ifdef HAVE_QUEUE_H
 140 #include <sys/queue.h>
 141 #else
 142 #include "compat/queue.h"
 143 #endif
 144
 145 #ifdef HAVE_TREE_H
 146 #include <sys/tree.h>
 147 #else
 148 #include "compat/tree.h"
 149 #endif
 150
 151 #ifdef HAVE_BITSTRING_H
 152 #include <bitstring.h>
 153 #else
 154 #include "compat/bitstring.h"
 155 #endif
 156
 157 #ifdef HAVE_LIBUTIL_H
 158 #include <libutil.h>
 159 #endif
 160
 161 #ifdef HAVE_PTY_H
 162 #include <pty.h>
 163 #endif
 164
 165 #ifdef HAVE_UTIL_H
 166 #include <util.h>
 167 #endif
 168
 169 #ifdef HAVE_VIS
 170 #include <vis.h>
 171 #else
 172 #include "compat/vis.h"
 173 #endif
 174
 175 #ifdef HAVE_IMSG
 176 #include <imsg.h>
 177 #else
 178 #include "compat/imsg.h"
 179 #endif
 180
 181 #ifdef BROKEN_CMSG_FIRSTHDR
 182 #undef CMSG_FIRSTHDR
 183 #define CMSG_FIRSTHDR(mhdr) \
 184         ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
 185             (struct cmsghdr *)(mhdr)->msg_control :         \
 186             (struct cmsghdr *)NULL)
 187 #endif
 188
 189 #ifndef CMSG_ALIGN
 190 #ifdef _CMSG_DATA_ALIGN
 191 #define CMSG_ALIGN _CMSG_DATA_ALIGN
 192 #else
 193 #define CMSG_ALIGN(len) (((len) + sizeof(long) - 1) & ~(sizeof(long) - 1))
 194 #endif
 195 #endif
 196
 197 #ifndef CMSG_SPACE
 198 #define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))
 199 #endif
 200
 201 #ifndef CMSG_LEN
 202 #define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
 203 #endif
 204
 205 #ifndef O_DIRECTORY
 206 #define O_DIRECTORY 0
 207 #endif
 208
 209 #ifndef FNM_CASEFOLD
 210 #ifdef FNM_IGNORECASE
 211 #define FNM_CASEFOLD FNM_IGNORECASE
 212 #else
 213 #define FNM_CASEFOLD 0
 214 #endif
 215 #endif
 216
 217 #ifndef INFTIM
 218 #define INFTIM -1
 219 #endif
 220
 221 #ifndef WAIT_ANY
 222 #define WAIT_ANY -1
 223 #endif
 224
 225 #ifndef SUN_LEN
 226 #define SUN_LEN(sun) (sizeof (sun)->sun_path)
 227 #endif
 228
 229 #ifndef timercmp
 230 #define timercmp(tvp, uvp, cmp)                                         \
 231         (((tvp)->tv_sec == (uvp)->tv_sec) ?                             \
 232             ((tvp)->tv_usec cmp (uvp)->tv_usec) :                       \
 233             ((tvp)->tv_sec cmp (uvp)->tv_sec))
 234 #endif
 235
 236 #ifndef timeradd
 237 #define timeradd(tvp, uvp, vvp)                                         \
 238         do {                                                            \
 239                 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;          \
 240                 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;       \
 241                 if ((vvp)->tv_usec >= 1000000) {                        \
 242                         (vvp)->tv_sec++;                                \
 243                         (vvp)->tv_usec -= 1000000;                      \
 244                 }                                                       \
 245         } while (0)
 246 #endif
 247
 248 #ifndef timersub
 249 #define timersub(tvp, uvp, vvp)                                         \
 250         do {                                                            \
 251                 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;          \
 252                 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \
 253                 if ((vvp)->tv_usec < 0) {                               \
 254                         (vvp)->tv_sec--;                                \
 255                         (vvp)->tv_usec += 1000000;                      \
 256                 }                                                       \
 257         } while (0)
 258 #endif
 259
 260 #ifndef TTY_NAME_MAX
 261 #define TTY_NAME_MAX 32
 262 #endif
 263
 264 #ifndef HOST_NAME_MAX
 265 #define HOST_NAME_MAX 255
 266 #endif
 267
 268 #ifndef CLOCK_REALTIME
 269 #define CLOCK_REALTIME 0
 270 #endif
 271 #ifndef CLOCK_MONOTONIC
 272 #define CLOCK_MONOTONIC CLOCK_REALTIME
 273 #endif
 274
 275 #ifndef HAVE_FLOCK
 276 #define LOCK_SH 0
 277 #define LOCK_EX 0
 278 #define LOCK_NB 0
 279 #define flock(fd, op) (0)
 280 #endif
 281
 282 #ifndef HAVE_EXPLICIT_BZERO
 283 /* explicit_bzero.c */
 284 void             explicit_bzero(void *, size_t);
 285 #endif
 286
 287 #ifndef HAVE_GETDTABLECOUNT
 288 /* getdtablecount.c */
 289 int              getdtablecount(void);
 290 #endif
 291
 292 #ifndef HAVE_GETDTABLESIZE
 293 /* getdtablesize.c */
 294 int              getdtablesize(void);
 295 #endif
 296
 297 #ifndef HAVE_CLOSEFROM
 298 /* closefrom.c */
 299 void             closefrom(int);
 300 #endif
 301
 302 #ifndef HAVE_STRCASESTR
 303 /* strcasestr.c */
 304 char            *strcasestr(const char *, const char *);
 305 #endif
 306
 307 #ifndef HAVE_STRSEP
 308 /* strsep.c */
 309 char            *strsep(char **, const char *);
 310 #endif
 311
 312 #ifndef HAVE_STRTONUM
 313 /* strtonum.c */
 314 long long        strtonum(const char *, long long, long long, const char **);
 315 #endif
 316
 317 #ifndef HAVE_STRLCPY
 318 /* strlcpy.c */
 319 size_t           strlcpy(char *, const char *, size_t);
 320 #endif
 321
 322 #ifndef HAVE_STRLCAT
 323 /* strlcat.c */
 324 size_t           strlcat(char *, const char *, size_t);
 325 #endif
 326
 327 #ifndef HAVE_STRNLEN
 328 /* strnlen.c */
 329 size_t           strnlen(const char *, size_t);
 330 #endif
 331
 332 #ifndef HAVE_STRNDUP
 333 /* strndup.c */
 334 char            *strndup(const char *, size_t);
 335 #endif
 336
 337 #ifndef HAVE_MEMMEM
 338 /* memmem.c */
 339 void            *memmem(const void *, size_t, const void *, size_t);
 340 #endif
 341
 342 #ifndef HAVE_HTONLL
 343 /* htonll.c */
 344 #undef htonll
 345 uint64_t         htonll(uint64_t);
 346 #endif
 347
 348 #ifndef HAVE_NTOHLL
 349 /* ntohll.c */
 350 #undef ntohll
 351 uint64_t         ntohll(uint64_t);
 352 #endif
 353
 354 #ifndef HAVE_GETPEEREID
 355 /* getpeereid.c */
 356 int             getpeereid(int, uid_t *, gid_t *);
 357 #endif
 358
 359 #ifndef HAVE_DAEMON
 360 /* daemon.c */
 361 int              daemon(int, int);
 362 #endif
 363
 364 #ifndef HAVE_GETPROGNAME
 365 /* getprogname.c */
 366 const char      *getprogname(void);
 367 #endif
 368
 369 #ifndef HAVE_SETPROCTITLE
 370 /* setproctitle.c */
 371 void             setproctitle(const char *, ...);
 372 #endif
 373
 374 #ifndef HAVE_CLOCK_GETTIME
 375 /* clock_gettime.c */
 376 int              clock_gettime(int, struct timespec *);
 377 #endif
 378
 379 #ifndef HAVE_B64_NTOP
 380 /* base64.c */
 381 #undef b64_ntop
 382 #undef b64_pton
 383 int              b64_ntop(const char *, size_t, char *, size_t);
 384 int              b64_pton(const char *, u_char *, size_t);
 385 #endif
 386
 387 #ifndef HAVE_FDFORKPTY
 388 /* fdforkpty.c */
 389 int              getptmfd(void);
 390 pid_t            fdforkpty(int, int *, char *, struct termios *,
 391                      struct winsize *);
 392 #endif
 393
 394 #ifndef HAVE_FORKPTY
 395 /* forkpty.c */
 396 pid_t            forkpty(int *, char *, struct termios *, struct winsize *);
 397 #endif
 398
 399 #ifndef HAVE_ASPRINTF
 400 /* asprintf.c */
 401 int              asprintf(char **, const char *, ...);
 402 int              vasprintf(char **, const char *, va_list);
 403 #endif
 404
 405 #ifndef HAVE_FGETLN
 406 /* fgetln.c */
 407 char            *fgetln(FILE *, size_t *);
 408 #endif
 409
 410 #ifndef HAVE_GETLINE
 411 /* getline.c */
 412 ssize_t          getline(char **, size_t *, FILE *);
 413 #endif
 414
 415 #ifndef HAVE_SETENV
 416 /* setenv.c */
 417 int              setenv(const char *, const char *, int);
 418 int              unsetenv(const char *);
 419 #endif
 420
 421 #ifndef HAVE_CFMAKERAW
 422 /* cfmakeraw.c */
 423 void             cfmakeraw(struct termios *);
 424 #endif
 425
 426 #ifndef HAVE_FREEZERO
 427 /* freezero.c */
 428 void             freezero(void *, size_t);
 429 #endif
 430
 431 #ifndef HAVE_REALLOCARRAY
 432 /* reallocarray.c */
 433 void            *reallocarray(void *, size_t, size_t);
 434 #endif
 435
 436 #ifndef HAVE_RECALLOCARRAY
 437 /* recallocarray.c */
 438 void            *recallocarray(void *, size_t, size_t, size_t);
 439 #endif
 440
 441 #ifdef HAVE_SYSTEMD
 442 /* systemd.c */
 443 int              systemd_activated(void);
 444 int              systemd_create_socket(int, char **);
 445 int              systemd_move_pid_to_new_cgroup(pid_t, char **);
 446 #endif
 447
 448 #ifdef HAVE_UTF8PROC
 449 /* utf8proc.c */
 450 int              utf8proc_wcwidth(wchar_t);
 451 int              utf8proc_mbtowc(wchar_t *, const char *, size_t);
 452 int              utf8proc_wctomb(char *, wchar_t);
 453 #endif
 454
 455 #ifdef NEED_FUZZING
 456 /* tmux.c */
 457 #define main __weak main
 458 #endif
 459
 460 /* getopt.c */
 461 extern int      BSDopterr;
 462 extern int      BSDoptind;
 463 extern int      BSDoptopt;
 464 extern int      BSDoptreset;
 465 extern char    *BSDoptarg;
 466 int     BSDgetopt(int, char *const *, const char *);
 467 #define getopt(ac, av, o)  BSDgetopt(ac, av, o)
 468 #define opterr             BSDopterr
 469 #define optind             BSDoptind
 470 #define optopt             BSDoptopt
 471 #define optreset           BSDoptreset
 472 #define optarg             BSDoptarg
 473
 474 #endif /* COMPAT_H */