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#ifndef __SETUP_ONCE_H
#define __SETUP_ONCE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* $Id$
***************************************************************************/


/********************************************************************
* 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>
#include <errno.h>

#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

#ifdef HAVE_STDBOOL_H
#include <stdbool.h>
#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) (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) (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) (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) (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) (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))
#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 ISBLANK(x) (int)((((unsigned char)x) == ' ') || \
(((unsigned char)x) == '\t'))


/*
* Typedef to 'unsigned char' if bool is not an available 'typedefed' type.
*/

#ifndef HAVE_BOOL_T
typedef unsigned char bool;
#define HAVE_BOOL_T
#endif


/*
* Default definition of uppercase TRUE and FALSE.
*/

#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#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 (0)
#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 (0)
#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.
*/

#ifdef WIN32
#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
#define EWOULDBLOCK WSAEWOULDBLOCK
#define EINPROGRESS WSAEINPROGRESS
#define EALREADY WSAEALREADY
#define ENOTSOCK WSAENOTSOCK
#define EDESTADDRREQ WSAEDESTADDRREQ
#define EMSGSIZE WSAEMSGSIZE
#define EPROTOTYPE WSAEPROTOTYPE
#define ENOPROTOOPT WSAENOPROTOOPT
#define EPROTONOSUPPORT WSAEPROTONOSUPPORT
#define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
#define EOPNOTSUPP WSAEOPNOTSUPP
#define EPFNOSUPPORT WSAEPFNOSUPPORT
#define EAFNOSUPPORT WSAEAFNOSUPPORT
#define EADDRINUSE WSAEADDRINUSE
#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
#define ENETDOWN WSAENETDOWN
#define ENETUNREACH WSAENETUNREACH
#define ENETRESET WSAENETRESET
#define ECONNABORTED WSAECONNABORTED
#define ECONNRESET WSAECONNRESET
#define ENOBUFS WSAENOBUFS
#define EISCONN WSAEISCONN
#define ENOTCONN WSAENOTCONN
#define ESHUTDOWN WSAESHUTDOWN
#define ETOOMANYREFS WSAETOOMANYREFS
#define ETIMEDOUT WSAETIMEDOUT
#define ECONNREFUSED WSAECONNREFUSED
#define ELOOP WSAELOOP
#ifndef ENAMETOOLONG /* possible previous definition in errno.h */
#define ENAMETOOLONG WSAENAMETOOLONG
#endif
#define EHOSTDOWN WSAEHOSTDOWN
#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 */
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