#ifndef __SETUP_ONCE_H

#define __SETUP_ONCE_H

/* Copyright (C) 2004 - 2013 by Daniel Stenberg et al

 *

 * Permission to use, copy, modify, and distribute this software and its

 * documentation for any purpose and without fee is hereby granted, provided

 * that the above copyright notice appear in all copies and that both that

 * copyright notice and this permission notice appear in supporting

 * documentation, and that the name of M.I.T. not be used in advertising or

 * publicity pertaining to distribution of the software without specific,

 * written prior permission.  M.I.T. makes no representations about the

 * suitability of this software for any purpose.  It is provided "as is"

 * without express or implied warranty.

 */

/********************************************************************

 *                              NOTICE                              *

 *                             ========                             *

 *                                                                  *

 *  Content of header files lib/setup_once.h and ares/setup_once.h  *

 *  must be kept in sync. Modify the other one if you change this.  *

 *                                                                  *

 ********************************************************************/

/*

 * Inclusion of common header files.

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <stdarg.h>

#include <ctype.h>

#ifdef HAVE_ERRNO_H

#include <errno.h>

#endif

#ifdef HAVE_SYS_TYPES_H

#include <sys/types.h>

#endif

#ifdef NEED_MALLOC_H

#include <malloc.h>

#endif

#ifdef NEED_MEMORY_H

#include <memory.h>

#endif

#ifdef HAVE_SYS_STAT_H

#include <sys/stat.h>

#endif

#ifdef HAVE_SYS_TIME_H

#include <sys/time.h>

#ifdef TIME_WITH_SYS_TIME

#include <time.h>

#endif

#else

#ifdef HAVE_TIME_H

#include <time.h>

#endif

#endif

#ifdef WIN32

#include <io.h>

#include <fcntl.h>

#endif

#if defined(HAVE_STDBOOL_H) && defined(HAVE_BOOL_T)

#include <stdbool.h>

#endif

#ifdef HAVE_UNISTD_H

#include <unistd.h>

#endif

#ifdef __hpux

#  if !defined(_XOPEN_SOURCE_EXTENDED) || defined(_KERNEL)

#    ifdef _APP32_64BIT_OFF_T

#      define OLD_APP32_64BIT_OFF_T _APP32_64BIT_OFF_T

#      undef _APP32_64BIT_OFF_T

#    else

#      undef OLD_APP32_64BIT_OFF_T

#    endif

#  endif

#endif

#ifdef HAVE_SYS_SOCKET_H

#include <sys/socket.h>

#endif

#ifdef __hpux

#  if !defined(_XOPEN_SOURCE_EXTENDED) || defined(_KERNEL)

#    ifdef OLD_APP32_64BIT_OFF_T

#      define _APP32_64BIT_OFF_T OLD_APP32_64BIT_OFF_T

#      undef OLD_APP32_64BIT_OFF_T

#    endif

#  endif

#endif

/*

 * Definition of timeval struct for platforms that don't have it.

 */

#ifndef HAVE_STRUCT_TIMEVAL

struct timeval {

 long tv_sec;

 long tv_usec;

};

#endif

/*

 * If we have the MSG_NOSIGNAL define, make sure we use

 * it as the fourth argument of function send()

 */

#ifdef HAVE_MSG_NOSIGNAL

#define SEND_4TH_ARG MSG_NOSIGNAL

#else

#define SEND_4TH_ARG 0

#endif

#if defined(__minix)

/* Minix doesn't support recv on TCP sockets */

#define sread(x,y,z) (ares_ssize_t)read((RECV_TYPE_ARG1)(x), \

                                   (RECV_TYPE_ARG2)(y), \

                                   (RECV_TYPE_ARG3)(z))

#elif defined(HAVE_RECV)

/*

 * The definitions for the return type and arguments types

 * of functions recv() and send() belong and come from the

 * configuration file. Do not define them in any other place.

 *

 * HAVE_RECV is defined if you have a function named recv()

 * which is used to read incoming data from sockets. If your

 * function has another name then don't define HAVE_RECV.

 *

 * If HAVE_RECV is defined then RECV_TYPE_ARG1, RECV_TYPE_ARG2,

 * RECV_TYPE_ARG3, RECV_TYPE_ARG4 and RECV_TYPE_RETV must also

 * be defined.

 *

 * HAVE_SEND is defined if you have a function named send()

 * which is used to write outgoing data on a connected socket.

 * If yours has another name then don't define HAVE_SEND.

 *

 * If HAVE_SEND is defined then SEND_TYPE_ARG1, SEND_QUAL_ARG2,

 * SEND_TYPE_ARG2, SEND_TYPE_ARG3, SEND_TYPE_ARG4 and

 * SEND_TYPE_RETV must also be defined.

 */

#if !defined(RECV_TYPE_ARG1) || \

    !defined(RECV_TYPE_ARG2) || \

    !defined(RECV_TYPE_ARG3) || \

    !defined(RECV_TYPE_ARG4) || \

    !defined(RECV_TYPE_RETV)

  /* */

  Error Missing_definition_of_return_and_arguments_types_of_recv

  /* */

#else

#define sread(x,y,z) (ares_ssize_t)recv((RECV_TYPE_ARG1)(x), \

                                   (RECV_TYPE_ARG2)(y), \

                                   (RECV_TYPE_ARG3)(z), \

                                   (RECV_TYPE_ARG4)(0))

#endif

#else /* HAVE_RECV */

#ifndef sread

  /* */

  Error Missing_definition_of_macro_sread

  /* */

#endif

#endif /* HAVE_RECV */

#if defined(__minix)

/* Minix doesn't support send on TCP sockets */

#define swrite(x,y,z) (ares_ssize_t)write((SEND_TYPE_ARG1)(x), \

                                    (SEND_TYPE_ARG2)(y), \

                                    (SEND_TYPE_ARG3)(z))

#elif defined(HAVE_SEND)

#if !defined(SEND_TYPE_ARG1) || \

    !defined(SEND_QUAL_ARG2) || \

    !defined(SEND_TYPE_ARG2) || \

    !defined(SEND_TYPE_ARG3) || \

    !defined(SEND_TYPE_ARG4) || \

    !defined(SEND_TYPE_RETV)

  /* */

  Error Missing_definition_of_return_and_arguments_types_of_send

  /* */

#else

#define swrite(x,y,z) (ares_ssize_t)send((SEND_TYPE_ARG1)(x), \

                                    (SEND_TYPE_ARG2)(y), \

                                    (SEND_TYPE_ARG3)(z), \

                                    (SEND_TYPE_ARG4)(SEND_4TH_ARG))

#endif

#else /* HAVE_SEND */

#ifndef swrite

  /* */

  Error Missing_definition_of_macro_swrite

  /* */

#endif

#endif /* HAVE_SEND */

#if 0

#if defined(HAVE_RECVFROM)

/*

 * Currently recvfrom is only used on udp sockets.

 */

#if !defined(RECVFROM_TYPE_ARG1) || \

    !defined(RECVFROM_TYPE_ARG2) || \

    !defined(RECVFROM_TYPE_ARG3) || \

    !defined(RECVFROM_TYPE_ARG4) || \

    !defined(RECVFROM_TYPE_ARG5) || \

    !defined(RECVFROM_TYPE_ARG6) || \

    !defined(RECVFROM_TYPE_RETV)

  /* */

  Error Missing_definition_of_return_and_arguments_types_of_recvfrom

  /* */

#else

#define sreadfrom(s,b,bl,f,fl) (ares_ssize_t)recvfrom((RECVFROM_TYPE_ARG1)  (s),  \

                                                 (RECVFROM_TYPE_ARG2 *)(b),  \

                                                 (RECVFROM_TYPE_ARG3)  (bl), \

                                                 (RECVFROM_TYPE_ARG4)  (0),  \

                                                 (RECVFROM_TYPE_ARG5 *)(f),  \

                                                 (RECVFROM_TYPE_ARG6 *)(fl))

#endif

#else /* HAVE_RECVFROM */

#ifndef sreadfrom

  /* */

  Error Missing_definition_of_macro_sreadfrom

  /* */

#endif

#endif /* HAVE_RECVFROM */

#ifdef RECVFROM_TYPE_ARG6_IS_VOID

#  define RECVFROM_ARG6_T int

#else

#  define RECVFROM_ARG6_T RECVFROM_TYPE_ARG6

#endif

#endif /* if 0 */

/*

 * Function-like macro definition used to close a socket.

 */

#if defined(HAVE_CLOSESOCKET)

#  define sclose(x)  closesocket((x))

#elif defined(HAVE_CLOSESOCKET_CAMEL)

#  define sclose(x)  CloseSocket((x))

#elif defined(HAVE_CLOSE_S)

#  define sclose(x)  close_s((x))

#else

#  define sclose(x)  close((x))

#endif

/*

 * Uppercase macro versions of ANSI/ISO is*() functions/macros which

 * avoid negative number inputs with argument byte codes > 127.

 */

#define ISSPACE(x)  (isspace((int)  ((unsigned char)x)))

#define ISDIGIT(x)  (isdigit((int)  ((unsigned char)x)))

#define ISALNUM(x)  (isalnum((int)  ((unsigned char)x)))

#define ISXDIGIT(x) (isxdigit((int) ((unsigned char)x)))

#define ISGRAPH(x)  (isgraph((int)  ((unsigned char)x)))

#define ISALPHA(x)  (isalpha((int)  ((unsigned char)x)))

#define ISPRINT(x)  (isprint((int)  ((unsigned char)x)))

#define ISUPPER(x)  (isupper((int)  ((unsigned char)x)))

#define ISLOWER(x)  (islower((int)  ((unsigned char)x)))

#define ISASCII(x)  (isascii((int)  ((unsigned char)x)))

#define ISBLANK(x)  (int)((((unsigned char)x) == ' ') || \

                          (((unsigned char)x) == '\t'))

#define TOLOWER(x)  (tolower((int)  ((unsigned char)x)))

/*

 * 'bool' stuff compatible with HP-UX headers.

 */

#if defined(__hpux) && !defined(HAVE_BOOL_T)

   typedef int bool;

#  define false 0

#  define true 1

#  define HAVE_BOOL_T

#endif

/*

 * 'bool' exists on platforms with <stdbool.h>, i.e. C99 platforms.

 * On non-C99 platforms there's no bool, so define an enum for that.

 * On C99 platforms 'false' and 'true' also exist. Enum uses a

 * global namespace though, so use bool_false and bool_true.

 */

#ifndef HAVE_BOOL_T

  typedef enum {

      bool_false = 0,

      bool_true  = 1

  } bool;

/*

 * Use a define to let 'true' and 'false' use those enums.  There

 * are currently no use of true and false in libcurl proper, but

 * there are some in the examples. This will cater for any later

 * code happening to use true and false.

 */

#  define false bool_false

#  define true  bool_true

#  define HAVE_BOOL_T

#endif

/*

 * Redefine TRUE and FALSE too, to catch current use. With this

 * change, 'bool found = 1' will give a warning on MIPSPro, but

 * 'bool found = TRUE' will not. Change tested on IRIX/MIPSPro,

 * AIX 5.1/Xlc, Tru64 5.1/cc, w/make test too.

 */

#ifndef TRUE

#define TRUE true

#endif

#ifndef FALSE

#define FALSE false

#endif

/*

 * Macro WHILE_FALSE may be used to build single-iteration do-while loops,

 * avoiding compiler warnings. Mostly intended for other macro definitions.

 */

#define WHILE_FALSE  while(0)

#if defined(_MSC_VER) && !defined(__POCC__)

#  undef WHILE_FALSE

#  if (_MSC_VER < 1500)

#    define WHILE_FALSE  while(1, 0)

#  else

#    define WHILE_FALSE \

__pragma(warning(push)) \

__pragma(warning(disable:4127)) \

while(0) \

__pragma(warning(pop))

#  endif

#endif

/*

 * Typedef to 'int' if sig_atomic_t is not an available 'typedefed' type.

 */

#ifndef HAVE_SIG_ATOMIC_T

typedef int sig_atomic_t;

#define HAVE_SIG_ATOMIC_T

#endif

/*

 * Convenience SIG_ATOMIC_T definition

 */

#ifdef HAVE_SIG_ATOMIC_T_VOLATILE

#define SIG_ATOMIC_T static sig_atomic_t

#else

#define SIG_ATOMIC_T static volatile sig_atomic_t

#endif

/*

 * Default return type for signal handlers.

 */

#ifndef RETSIGTYPE

#define RETSIGTYPE void

#endif

/*

 * Macro used to include code only in debug builds.

 */

#ifdef DEBUGBUILD

#define DEBUGF(x) x

#else

#define DEBUGF(x) do { } WHILE_FALSE

#endif

/*

 * Macro used to include assertion code only in debug builds.

 */

#if defined(DEBUGBUILD) && defined(HAVE_ASSERT_H)

#define DEBUGASSERT(x) assert(x)

#else

#define DEBUGASSERT(x) do { } WHILE_FALSE

#endif

/*

 * Macro SOCKERRNO / SET_SOCKERRNO() returns / sets the *socket-related* errno

 * (or equivalent) on this platform to hide platform details to code using it.

 */

#ifdef USE_WINSOCK

#define SOCKERRNO         ((int)WSAGetLastError())

#define SET_SOCKERRNO(x)  (WSASetLastError((int)(x)))

#else

#define SOCKERRNO         (errno)

#define SET_SOCKERRNO(x)  (errno = (x))

#endif

/*

 * Macro ERRNO / SET_ERRNO() returns / sets the NOT *socket-related* errno

 * (or equivalent) on this platform to hide platform details to code using it.

 */

#if defined(WIN32) && !defined(WATT32)

#define ERRNO         ((int)GetLastError())

#define SET_ERRNO(x)  (SetLastError((DWORD)(x)))

#else

#define ERRNO         (errno)

#define SET_ERRNO(x)  (errno = (x))

#endif

/*

 * Portable error number symbolic names defined to Winsock error codes.

 */

#ifdef USE_WINSOCK

#undef  EBADF            /* override definition in errno.h */

#define EBADF            WSAEBADF

#undef  EINTR            /* override definition in errno.h */

#define EINTR            WSAEINTR

#undef  EINVAL           /* override definition in errno.h */

#define EINVAL           WSAEINVAL

#undef  EWOULDBLOCK      /* override definition in errno.h */

#define EWOULDBLOCK      WSAEWOULDBLOCK

#undef  EINPROGRESS      /* override definition in errno.h */

#define EINPROGRESS      WSAEINPROGRESS

#undef  EALREADY         /* override definition in errno.h */

#define EALREADY         WSAEALREADY

#undef  ENOTSOCK         /* override definition in errno.h */

#define ENOTSOCK         WSAENOTSOCK

#undef  EDESTADDRREQ     /* override definition in errno.h */

#define EDESTADDRREQ     WSAEDESTADDRREQ

#undef  EMSGSIZE         /* override definition in errno.h */

#define EMSGSIZE         WSAEMSGSIZE

#undef  EPROTOTYPE       /* override definition in errno.h */

#define EPROTOTYPE       WSAEPROTOTYPE

#undef  ENOPROTOOPT      /* override definition in errno.h */

#define ENOPROTOOPT      WSAENOPROTOOPT

#undef  EPROTONOSUPPORT  /* override definition in errno.h */

#define EPROTONOSUPPORT  WSAEPROTONOSUPPORT

#define ESOCKTNOSUPPORT  WSAESOCKTNOSUPPORT

#undef  EOPNOTSUPP       /* override definition in errno.h */

#define EOPNOTSUPP       WSAEOPNOTSUPP

#define EPFNOSUPPORT     WSAEPFNOSUPPORT

#undef  EAFNOSUPPORT     /* override definition in errno.h */

#define EAFNOSUPPORT     WSAEAFNOSUPPORT

#undef  EADDRINUSE       /* override definition in errno.h */

#define EADDRINUSE       WSAEADDRINUSE

#undef  EADDRNOTAVAIL    /* override definition in errno.h */

#define EADDRNOTAVAIL    WSAEADDRNOTAVAIL

#undef  ENETDOWN         /* override definition in errno.h */

#define ENETDOWN         WSAENETDOWN

#undef  ENETUNREACH      /* override definition in errno.h */

#define ENETUNREACH      WSAENETUNREACH

#undef  ENETRESET        /* override definition in errno.h */

#define ENETRESET        WSAENETRESET

#undef  ECONNABORTED     /* override definition in errno.h */

#define ECONNABORTED     WSAECONNABORTED

#undef  ECONNRESET       /* override definition in errno.h */

#define ECONNRESET       WSAECONNRESET

#undef  ENOBUFS          /* override definition in errno.h */

#define ENOBUFS          WSAENOBUFS

#undef  EISCONN          /* override definition in errno.h */

#define EISCONN          WSAEISCONN

#undef  ENOTCONN         /* override definition in errno.h */

#define ENOTCONN         WSAENOTCONN

#define ESHUTDOWN        WSAESHUTDOWN

#define ETOOMANYREFS     WSAETOOMANYREFS

#undef  ETIMEDOUT        /* override definition in errno.h */

#define ETIMEDOUT        WSAETIMEDOUT

#undef  ECONNREFUSED     /* override definition in errno.h */

#define ECONNREFUSED     WSAECONNREFUSED

#undef  ELOOP            /* override definition in errno.h */

#define ELOOP            WSAELOOP

#ifndef ENAMETOOLONG     /* possible previous definition in errno.h */

#define ENAMETOOLONG     WSAENAMETOOLONG

#endif

#define EHOSTDOWN        WSAEHOSTDOWN

#undef  EHOSTUNREACH     /* override definition in errno.h */

#define EHOSTUNREACH     WSAEHOSTUNREACH

#ifndef ENOTEMPTY        /* possible previous definition in errno.h */

#define ENOTEMPTY        WSAENOTEMPTY

#endif

#define EPROCLIM         WSAEPROCLIM

#define EUSERS           WSAEUSERS

#define EDQUOT           WSAEDQUOT

#define ESTALE           WSAESTALE

#define EREMOTE          WSAEREMOTE

#endif

/*

 *  Actually use __32_getpwuid() on 64-bit VMS builds for getpwuid()

 */

#if defined(__VMS) && \

    defined(__INITIAL_POINTER_SIZE) && (__INITIAL_POINTER_SIZE == 64)

#define getpwuid __32_getpwuid

#endif

/*

 * Macro argv_item_t hides platform details to code using it.

 */

#ifdef __VMS

#define argv_item_t  __char_ptr32

#else

#define argv_item_t  char *

#endif

/*

 * We use this ZERO_NULL to avoid picky compiler warnings,

 * when assigning a NULL pointer to a function pointer var.

 */

#define ZERO_NULL 0

#endif /* __SETUP_ONCE_H */