/*

 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>

 *

 * Permission to use, copy, modify, and distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER

 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING

 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#ifndef COMPAT_H

#define COMPAT_H

#include <sys/types.h>

#include <sys/ioctl.h>

#include <sys/uio.h>

#include <fnmatch.h>

#include <limits.h>

#include <stdio.h>

#include <termios.h>

#include <wchar.h>

#ifdef HAVE_EVENT2_EVENT_H

#include <event2/event.h>

#include <event2/event_compat.h>

#include <event2/event_struct.h>

#include <event2/buffer.h>

#include <event2/buffer_compat.h>

#include <event2/bufferevent.h>

#include <event2/bufferevent_struct.h>

#include <event2/bufferevent_compat.h>

#else

#include <event.h>

#ifndef EVBUFFER_EOL_LF

/*

 * This doesn't really work because evbuffer_readline is broken, but gets us to

 * build with very old (older than 1.4.14) libevent.

 */

#define EVBUFFER_EOL_LF

#define evbuffer_readln(a, b, c) evbuffer_readline(a)

#endif

#endif

#ifdef HAVE_MALLOC_TRIM

#include <malloc.h>

#endif

#ifdef HAVE_UTF8PROC

#include <utf8proc.h>

#endif

#ifndef __GNUC__

#define __attribute__(a)

#endif

#ifdef BROKEN___DEAD

#undef __dead

#endif

#ifndef __unused

#define __unused __attribute__ ((__unused__))

#endif

#ifndef __dead

#define __dead __attribute__ ((__noreturn__))

#endif

#ifndef __packed

#define __packed __attribute__ ((__packed__))

#endif

#ifndef __weak

#define __weak __attribute__ ((__weak__))

#endif

#ifndef ECHOPRT

#define ECHOPRT 0

#endif

#ifndef ACCESSPERMS

#define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO)

#endif

#if !defined(FIONREAD) && defined(__sun)

#include <sys/filio.h>

#endif

#ifdef HAVE_ERR_H

#include <err.h>

#else

void  err(int, const char *, ...);

void  errx(int, const char *, ...);

void  warn(const char *, ...);

void  warnx(const char *, ...);

#endif

#ifdef HAVE_PATHS_H

#include <paths.h>

#endif

#ifndef _PATH_BSHELL

#define _PATH_BSHELL  "/bin/sh"

#endif

#ifndef _PATH_TMP

#define _PATH_TMP "/tmp/"

#endif

#ifndef _PATH_DEVNULL

#define _PATH_DEVNULL "/dev/null"

#endif

#ifndef _PATH_TTY

#define _PATH_TTY "/dev/tty"

#endif

#ifndef _PATH_DEV

#define _PATH_DEV "/dev/"

#endif

#ifndef _PATH_DEFPATH

#define _PATH_DEFPATH "/usr/bin:/bin"

#endif

#ifndef _PATH_VI

#define _PATH_VI  "/usr/bin/vi"

#endif

#ifndef __OpenBSD__

#define pledge(s, p) (0)

#endif

#ifndef IMAXBEL

#define IMAXBEL 0

#endif

#ifdef HAVE_STDINT_H

#include <stdint.h>

#else

#include <inttypes.h>

#endif

#ifdef HAVE_QUEUE_H

#include <sys/queue.h>

#else

#include "compat/queue.h"

#endif

#ifdef HAVE_TREE_H

#include <sys/tree.h>

#else

#include "compat/tree.h"

#endif

#ifdef HAVE_BITSTRING_H

#include <bitstring.h>

#else

#include "compat/bitstring.h"

#endif

#ifdef HAVE_LIBUTIL_H

#include <libutil.h>

#endif

#ifdef HAVE_PTY_H

#include <pty.h>

#endif

#ifdef HAVE_UTIL_H

#include <util.h>

#endif

#ifdef HAVE_VIS

#include <vis.h>

#else

#include "compat/vis.h"

#endif

#ifdef HAVE_IMSG

#include <imsg.h>

#else

#include "compat/imsg.h"

#endif

#ifdef BROKEN_CMSG_FIRSTHDR

#undef CMSG_FIRSTHDR

#define CMSG_FIRSTHDR(mhdr) \

  ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \

      (struct cmsghdr *)(mhdr)->msg_control :     \

      (struct cmsghdr *)NULL)

#endif

#ifndef CMSG_ALIGN

#ifdef _CMSG_DATA_ALIGN

#define CMSG_ALIGN _CMSG_DATA_ALIGN

#else

#define CMSG_ALIGN(len) (((len) + sizeof(long) - 1) & ~(sizeof(long) - 1))

#endif

#endif

#ifndef CMSG_SPACE

#define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))

#endif

#ifndef CMSG_LEN

#define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))

#endif

#ifndef O_DIRECTORY

#define O_DIRECTORY 0

#endif

#ifndef FNM_CASEFOLD

#ifdef FNM_IGNORECASE

#define FNM_CASEFOLD FNM_IGNORECASE

#else

#define FNM_CASEFOLD 0

#endif

#endif

#ifndef INFTIM

#define INFTIM -1

#endif

#ifndef WAIT_ANY

#define WAIT_ANY -1

#endif

#ifndef SUN_LEN

#define SUN_LEN(sun) (sizeof (sun)->sun_path)

#endif

#ifndef timercmp

#define timercmp(tvp, uvp, cmp)           \

  (((tvp)->tv_sec == (uvp)->tv_sec) ?       \

      ((tvp)->tv_usec cmp (uvp)->tv_usec) :     \

      ((tvp)->tv_sec cmp (uvp)->tv_sec))

#endif

#ifndef timeradd

#define timeradd(tvp, uvp, vvp)           \

  do {                \

    (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;    \

    (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \

    if ((vvp)->tv_usec >= 1000000) {      \

      (vvp)->tv_sec++;        \

      (vvp)->tv_usec -= 1000000;      \

    }             \

  } while (0)

#endif

#ifndef timersub

#define timersub(tvp, uvp, vvp)                                         \

  do {                                                            \

    (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;          \

    (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \

    if ((vvp)->tv_usec < 0) {                               \

      (vvp)->tv_sec--;                                \

      (vvp)->tv_usec += 1000000;                      \

    }                                                       \

  } while (0)

#endif

#ifndef TTY_NAME_MAX

#define TTY_NAME_MAX 32

#endif

#ifndef HOST_NAME_MAX

#define HOST_NAME_MAX 255

#endif

#ifndef CLOCK_REALTIME

#define CLOCK_REALTIME 0

#endif

#ifndef CLOCK_MONOTONIC

#define CLOCK_MONOTONIC CLOCK_REALTIME

#endif

#ifndef HAVE_FLOCK

#define LOCK_SH 0

#define LOCK_EX 0

#define LOCK_NB 0

#define flock(fd, op) (0)

#endif

#ifndef HAVE_EXPLICIT_BZERO

/* explicit_bzero.c */

void     explicit_bzero(void *, size_t);

#endif

#ifndef HAVE_GETDTABLECOUNT

/* getdtablecount.c */

int    getdtablecount(void);

#endif

#ifndef HAVE_GETDTABLESIZE

/* getdtablesize.c */

int    getdtablesize(void);

#endif

#ifndef HAVE_CLOSEFROM

/* closefrom.c */

void     closefrom(int);

#endif

#ifndef HAVE_STRCASESTR

/* strcasestr.c */

char    *strcasestr(const char *, const char *);

#endif

#ifndef HAVE_STRSEP

/* strsep.c */

char    *strsep(char **, const char *);

#endif

#ifndef HAVE_STRTONUM

/* strtonum.c */

long long  strtonum(const char *, long long, long long, const char **);

#endif

#ifndef HAVE_STRLCPY

/* strlcpy.c */

size_t     strlcpy(char *, const char *, size_t);

#endif

#ifndef HAVE_STRLCAT

/* strlcat.c */

size_t     strlcat(char *, const char *, size_t);

#endif

#ifndef HAVE_STRNLEN

/* strnlen.c */

size_t     strnlen(const char *, size_t);

#endif

#ifndef HAVE_STRNDUP

/* strndup.c */

char    *strndup(const char *, size_t);

#endif

#ifndef HAVE_MEMMEM

/* memmem.c */

void    *memmem(const void *, size_t, const void *, size_t);

#endif

#ifndef HAVE_HTONLL

/* htonll.c */

#undef htonll

uint64_t   htonll(uint64_t);

#endif

#ifndef HAVE_NTOHLL

/* ntohll.c */

#undef ntohll

uint64_t   ntohll(uint64_t);

#endif

#ifndef HAVE_GETPEEREID

/* getpeereid.c */

int   getpeereid(int, uid_t *, gid_t *);

#endif

#ifndef HAVE_DAEMON

/* daemon.c */

int    daemon(int, int);

#endif

#ifndef HAVE_GETPROGNAME

/* getprogname.c */

const char  *getprogname(void);

#endif

#ifndef HAVE_SETPROCTITLE

/* setproctitle.c */

void     setproctitle(const char *, ...);

#endif

#ifndef HAVE_CLOCK_GETTIME

/* clock_gettime.c */

int    clock_gettime(int, struct timespec *);

#endif

#ifndef HAVE_B64_NTOP

/* base64.c */

#undef b64_ntop

#undef b64_pton

int    b64_ntop(const char *, size_t, char *, size_t);

int    b64_pton(const char *, u_char *, size_t);

#endif

#ifndef HAVE_FDFORKPTY

/* fdforkpty.c */

int    getptmfd(void);

pid_t    fdforkpty(int, int *, char *, struct termios *,

         struct winsize *);

#endif

#ifndef HAVE_FORKPTY

/* forkpty.c */

pid_t    forkpty(int *, char *, struct termios *, struct winsize *);

#endif

#ifndef HAVE_ASPRINTF

/* asprintf.c */

int    asprintf(char **, const char *, ...);

int    vasprintf(char **, const char *, va_list);

#endif

#ifndef HAVE_FGETLN

/* fgetln.c */

char    *fgetln(FILE *, size_t *);

#endif

#ifndef HAVE_GETLINE

/* getline.c */

ssize_t    getline(char **, size_t *, FILE *);

#endif

#ifndef HAVE_SETENV

/* setenv.c */

int    setenv(const char *, const char *, int);

int    unsetenv(const char *);

#endif

#ifndef HAVE_CFMAKERAW

/* cfmakeraw.c */

void     cfmakeraw(struct termios *);

#endif

#ifndef HAVE_FREEZERO

/* freezero.c */

void     freezero(void *, size_t);

#endif

#ifndef HAVE_REALLOCARRAY

/* reallocarray.c */

void    *reallocarray(void *, size_t, size_t);

#endif

#ifndef HAVE_RECALLOCARRAY

/* recallocarray.c */

void    *recallocarray(void *, size_t, size_t, size_t);

#endif

#ifdef HAVE_SYSTEMD

/* systemd.c */

int    systemd_activated(void);

int    systemd_create_socket(int, char **);

int    systemd_move_to_new_cgroup(char **);

#endif

#ifdef HAVE_UTF8PROC

/* utf8proc.c */

int    utf8proc_wcwidth(wchar_t);

int    utf8proc_mbtowc(wchar_t *, const char *, size_t);

int    utf8proc_wctomb(char *, wchar_t);

#endif

#ifdef NEED_FUZZING

/* tmux.c */

#define main __weak main

#endif

/* getopt.c */

extern int   BSDopterr;

extern int   BSDoptind;

extern int   BSDoptopt;

extern int   BSDoptreset;

extern char *BSDoptarg;

int BSDgetopt(int, char *const *, const char *);

#define getopt(ac, av, o)  BSDgetopt(ac, av, o)

#define opterr             BSDopterr

#define optind             BSDoptind

#define optopt             BSDoptopt

#define optreset           BSDoptreset

#define optarg             BSDoptarg

#endif /* COMPAT_H */