text: /*
   * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #pragma once
  
  #include <AK/Types.h>
  
  #define PERF_EVENT_MALLOC 1
  #define PERF_EVENT_FREE 2
  
  #define WNOHANG 1
  #define WUNTRACED 2
  #define WSTOPPED WUNTRACED
  #define WEXITED 4
  #define WCONTINUED 8
  
  #define R_OK 4
  #define W_OK 2
  #define X_OK 1
  #define F_OK 0
  
  #define SIG_DFL ((void*)0)
  #define SIG_ERR ((void*)-1)
  #define SIG_IGN ((void*)1)
  
  #define SEEK_SET 0
  #define SEEK_CUR 1
  #define SEEK_END 2
  
  #define MAP_SHARED 0x01
  #define MAP_PRIVATE 0x02
  #define MAP_FIXED 0x10
  #define MAP_ANONYMOUS 0x20
  #define MAP_ANON MAP_ANONYMOUS
  #define MAP_STACK 0x40
  #define MAP_PURGEABLE 0x80
  
  #define PROT_READ 0x1
  #define PROT_WRITE 0x2
  #define PROT_EXEC 0x4
  #define PROT_NONE 0x0
  
  #define MADV_SET_VOLATILE 0x100
  #define MADV_SET_NONVOLATILE 0x200
  #define MADV_GET_VOLATILE 0x400
  
  #define F_DUPFD 0
  #define F_GETFD 1
  #define F_SETFD 2
  #define F_GETFL 3
  #define F_SETFL 4
  
  #define FD_CLOEXEC 1
  
  #define FUTEX_WAIT 1
  #define FUTEX_WAKE 2
  
  /* c_cc characters */
  #define VINTR 0
  #define VQUIT 1
  #define VERASE 2
  #define VKILL 3
  #define VEOF 4
  #define VTIME 5
  #define VMIN 6
  #define VSWTC 7
  #define VSTART 8
  #define VSTOP 9
  #define VSUSP 10
  #define VEOL 11
  #define VREPRINT 12
  #define VDISCARD 13
  #define VWERASE 14
  #define VLNEXT 15
  #define VEOL2 16
  
  /* c_iflag bits */
  #define IGNBRK 0000001
  #define BRKINT 0000002
  #define IGNPAR 0000004
  #define PARMRK 0000010
  #define INPCK 0000020
  #define ISTRIP 0000040
  #define INLCR 0000100
  #define IGNCR 0000200
  #define ICRNL 0000400
  #define IUCLC 0001000
  #define IXON 0002000
  #define IXANY 0004000
  #define IXOFF 0010000
  #define IMAXBEL 0020000
  #define IUTF8 0040000
  
  /* c_oflag bits */
  #define OPOST 0000001
  #define OLCUC 0000002
  #define ONLCR 0000004
  #define OCRNL 0000010
  #define ONOCR 0000020
  #define ONLRET 0000040
  #define OFILL 0000100
  #define OFDEL 0000200
  #if defined __USE_MISC || defined __USE_XOPEN
  #    define NLDLY 0000400
  #    define NL0 0000000
  #    define NL1 0000400
  #    define CRDLY 0003000
  #    define CR0 0000000
  #    define CR1 0001000
  #    define CR2 0002000
  #    define CR3 0003000
  #    define TABDLY 0014000
  #    define TAB0 0000000
  #    define TAB1 0004000
  #    define TAB2 0010000
  #    define TAB3 0014000
  #    define BSDLY 0020000
  #    define BS0 0000000
  #    define BS1 0020000
  #    define FFDLY 0100000
  #    define FF0 0000000
  #    define FF1 0100000
  #endif
  
  #define VTDLY 0040000
  #define VT0 0000000
  #define VT1 0040000
  
  #ifdef __USE_MISC
  #    define XTABS 0014000
  #endif
  
  /* c_cflag bit meaning */
  #ifdef __USE_MISC
  #    define CBAUD 0010017
  #endif
  #define B0 0000000 /* hang up */
  #define B50 0000001
  #define B75 0000002
  #define B110 0000003
  #define B134 0000004
  #define B150 0000005
  #define B200 0000006
  #define B300 0000007
  #define B600 0000010
  #define B1200 0000011
  #define B1800 0000012
  #define B2400 0000013
  #define B4800 0000014
  #define B9600 0000015
  #define B19200 0000016
  #define B38400 0000017
  #ifdef __USE_MISC
  #    define EXTA B19200
  #    define EXTB B38400
  #endif
  #define CSIZE 0000060
  #define CS5 0000000
  #define CS6 0000020
  #define CS7 0000040
  #define CS8 0000060
  #define CSTOPB 0000100
  #define CREAD 0000200
  #define PARENB 0000400
  #define PARODD 0001000
  #define HUPCL 0002000
  #define CLOCAL 0004000
  #ifdef __USE_MISC
  #    define CBAUDEX 0010000
  #endif
  #define B57600 0010001
  #define B115200 0010002
  #define B230400 0010003
  #define B460800 0010004
  #define B500000 0010005
  #define B576000 0010006
  #define B921600 0010007
  #define B1000000 0010010
  #define B1152000 0010011
  #define B1500000 0010012
  #define B2000000 0010013
  #define B2500000 0010014
  #define B3000000 0010015
  #define B3500000 0010016
  #define B4000000 0010017
  #define __MAX_BAUD B4000000
  #ifdef __USE_MISC
  #    define CIBAUD 002003600000  /* input baud rate (not used) */
  #    define CMSPAR 010000000000  /* mark or space (stick) parity */
  #    define CRTSCTS 020000000000 /* flow control */
  #endif
  
  /* c_lflag bits */
  #define ISIG 0000001
  #define ICANON 0000002
  #if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
  #    define XCASE 0000004
  #endif
  #define ECHO 0000010
  #define ECHOE 0000020
  #define ECHOK 0000040
  #define ECHONL 0000100
  #define NOFLSH 0000200
  #define TOSTOP 0000400
  #ifdef __USE_MISC
  #    define ECHOCTL 0001000
  #    define ECHOPRT 0002000
  #    define ECHOKE 0004000
  #    define FLUSHO 0010000
  #    define PENDIN 0040000
  #endif
  #define IEXTEN 0100000
  #ifdef __USE_MISC
  #    define EXTPROC 0200000
  #endif
  
  /* tcflow() and TCXONC use these */
  #define TCOOFF 0
  #define TCOON 1
  #define TCIOFF 2
  #define TCION 3
  
  /* tcflush() and TCFLSH use these */
  #define TCIFLUSH 0
  #define TCOFLUSH 1
  #define TCIOFLUSH 2
  
  /* tcsetattr uses these */
  #define TCSANOW 0
  #define TCSADRAIN 1
  #define TCSAFLUSH 2
  
  typedef u32 dev_t;
  typedef u32 ino_t;
  typedef u16 mode_t;
  typedef u32 nlink_t;
  typedef u32 uid_t;
  typedef u32 gid_t;
  typedef u32 clock_t;
  typedef u32 socklen_t;
  typedef int pid_t;
  
  struct tms {
      clock_t tms_utime;
      clock_t tms_stime;
      clock_t tms_cutime;
      clock_t tms_cstime;
  };
  
  typedef void (*__sighandler_t)(int);
  typedef __sighandler_t sighandler_t;
  
  typedef u32 sigset_t;
  
  union sigval {
      int sival_int;
      void* sival_ptr;
  };
  
  typedef struct siginfo {
      int si_signo;
      int si_code;
      pid_t si_pid;
      uid_t si_uid;
      void* si_addr;
      int si_status;
      union sigval si_value;
  } siginfo_t;
  
  struct sigaction {
      union {
          void (*sa_handler)(int);
          void (*sa_sigaction)(int, siginfo_t*, void*);
      };
      sigset_t sa_mask;
      int sa_flags;
  };
  
  #define SA_NOCLDSTOP 1
  #define SA_NOCLDWAIT 2
  #define SA_SIGINFO 4
  #define SA_NODEFER 0x40000000
  
  #define SIG_BLOCK 0
  #define SIG_UNBLOCK 1
  #define SIG_SETMASK 2
  
  #define CLD_EXITED 0
  #define CLD_KILLED 1
  #define CLD_DUMPED 2
  #define CLD_TRAPPED 3
  #define CLD_STOPPED 4
  #define CLD_CONTINUED 5
  
  #define OFF_T_MAX 2147483647
  
  typedef i32 off_t;
  typedef i64 time_t;
  
  struct utimbuf {
      time_t actime;
      time_t modtime;
  };
  
  typedef u32 blksize_t;
  typedef u32 blkcnt_t;
  
  #define NCCS 32
  
  typedef uint32_t tcflag_t;
  typedef uint8_t cc_t;
  typedef uint32_t speed_t;
  
  struct termios {
      tcflag_t c_iflag;
      tcflag_t c_oflag;
      tcflag_t c_cflag;
      tcflag_t c_lflag;
      cc_t c_cc[NCCS];
      speed_t c_ispeed;
      speed_t c_ospeed;
  };
  
  struct stat {
      dev_t st_dev;         /* ID of device containing file */
      ino_t st_ino;         /* inode number */
      mode_t st_mode;       /* protection */
      nlink_t st_nlink;     /* number of hard links */
      uid_t st_uid;         /* user ID of owner */
      gid_t st_gid;         /* group ID of owner */
      dev_t st_rdev;        /* device ID (if special file) */
      off_t st_size;        /* total size, in bytes */
      blksize_t st_blksize; /* blocksize for file system I/O */
      blkcnt_t st_blocks;   /* number of 512B blocks allocated */
      time_t st_atime;      /* time of last access */
      time_t st_mtime;      /* time of last modification */
      time_t st_ctime;      /* time of last status change */
  };
  
  #define POLLIN (1u << 0)
  #define POLLPRI (1u << 2)
  #define POLLOUT (1u << 3)
  #define POLLERR (1u << 4)
  #define POLLHUP (1u << 5)
  #define POLLNVAL (1u << 6)
  
  struct pollfd {
      int fd;
      short events;
      short revents;
  };
  
  #define AF_MASK 0xff
  #define AF_UNSPEC 0
  #define AF_LOCAL 1
  #define AF_INET 2
  #define PF_LOCAL AF_LOCAL
  #define PF_INET AF_INET
  
  #define SOCK_TYPE_MASK 0xff
  #define SOCK_STREAM 1
  #define SOCK_RAW 3
  #define SOCK_DGRAM 2
  #define SOCK_NONBLOCK 04000
  #define SOCK_CLOEXEC 02000000
  
  #define MSG_DONTWAIT 0x40
  
  #define SOL_SOCKET 1
  
  #define SO_RCVTIMEO 1
  #define SO_SNDTIMEO 2
  #define SO_KEEPALIVE 3
  #define SO_ERROR 4
  #define SO_PEERCRED 5
  
  #define IPPROTO_IP 0
  #define IPPROTO_ICMP 1
  #define IPPROTO_TCP 6
  #define IPPROTO_UDP 17
  
  #define IP_TTL 2
  
  struct ucred {
      pid_t pid;
      uid_t uid;
      gid_t gid;
  };
  
  struct sockaddr {
      u16 sa_family;
      char sa_data[14];
  };
  
  #define S_IFSOCK 0140000
  #define UNIX_PATH_MAX 108
  
  struct sockaddr_un {
      u16 sun_family;
      char sun_path[UNIX_PATH_MAX];
  };
  
  struct in_addr {
      uint32_t s_addr;
  };
  
  struct sockaddr_in {
      int16_t sin_family;
      uint16_t sin_port;
      struct in_addr sin_addr;
      char sin_zero[8];
  };
  
  typedef u32 __u32;
  typedef u16 __u16;
  typedef u8 __u8;
  typedef int __s32;
  typedef short __s16;
  
  typedef u32 useconds_t;
  typedef i32 suseconds_t;
  
  struct timeval {
      time_t tv_sec;
      suseconds_t tv_usec;
  };
  
  struct timespec {
      time_t tv_sec;
      long tv_nsec;
  };
  
  typedef enum {
      P_ALL = 1,
      P_PID,
      P_PGID
  } idtype_t;
  
  typedef int clockid_t;
  
  #define CLOCK_MONOTONIC 1
  #define TIMER_ABSTIME 99
  
  #define UTSNAME_ENTRY_LEN 65
  
  struct utsname {
      char sysname[UTSNAME_ENTRY_LEN];
      char nodename[UTSNAME_ENTRY_LEN];
      char release[UTSNAME_ENTRY_LEN];
      char version[UTSNAME_ENTRY_LEN];
      char machine[UTSNAME_ENTRY_LEN];
  };
  
  struct [[gnu::packed]] FarPtr
  {
      u32 offset { 0 };
      u16 selector { 0 };
  };
  
  struct iovec {
      void* iov_base;
      size_t iov_len;
  };
  
  struct sched_param {
      int sched_priority;
  };
  
  struct ifreq {
  #define IFNAMSIZ 16
      char ifr_name[IFNAMSIZ];
      union {
          struct sockaddr ifru_addr;
          struct sockaddr ifru_dstaddr;
          struct sockaddr ifru_broadaddr;
          struct sockaddr ifru_hwaddr;
          short ifru_flags;
          int ifru_metric;
          int64_t ifru_vnetid;
          uint64_t ifru_media;
          void* ifru_data;
          unsigned int ifru_index;
      } ifr_ifru;
  #define ifr_addr ifr_ifru.ifru_addr           // address
  #define ifr_dstaddr ifr_ifru.ifru_dstaddr     // other end of p-to-p link
  #define ifr_broadaddr ifr_ifru.ifru_broadaddr // broadcast address
  #define ifr_flags ifr_ifru.ifru_flags         // flags
  #define ifr_metric ifr_ifru.ifru_metric       // metric
  #define ifr_mtu ifr_ifru.ifru_metric          // mtu (overload)
  #define ifr_hardmtu ifr_ifru.ifru_metric      // hardmtu (overload)
  #define ifr_media ifr_ifru.ifru_media         // media options
  #define ifr_rdomainid ifr_ifru.ifru_metric    // VRF instance (overload)
  #define ifr_vnetid ifr_ifru.ifru_vnetid       // Virtual Net Id
  #define ifr_ttl ifr_ifru.ifru_metric          // tunnel TTL (overload)
  #define ifr_data ifr_ifru.ifru_data           // for use by interface
  #define ifr_index ifr_ifru.ifru_index         // interface index
  #define ifr_llprio ifr_ifru.ifru_metric       // link layer priority
  #define ifr_hwaddr ifr_ifru.ifru_hwaddr       // MAC address
  };
  
  #define AT_FDCWD -100
  
  #define PURGE_ALL_VOLATILE 0x1
  #define PURGE_ALL_CLEAN_INODE 0x2
  