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libcares/setup_once.h  view on Meta::CPAN

#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 */