]) # AC_DEFUN
+dnl CURL_CHECK_FUNC_RECV
+dnl -------------------------------------------------
+dnl Test if the socket recv() function is available,
+dnl and check its return type and the types of its
+dnl arguments. If the function succeeds HAVE_RECV
+dnl will be defined, defining the types of the arguments
+dnl in RECV_TYPE_ARG1, RECV_TYPE_ARG2, RECV_TYPE_ARG3
+dnl and RECV_TYPE_ARG4, defining the type of the function
+dnl return value in RECV_TYPE_RETV.
+
+AC_DEFUN([CURL_CHECK_FUNC_RECV], [
+ AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+ #
+ AC_MSG_CHECKING([for recv])
+ AC_TRY_LINK([
+#undef inline
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+ ],[
+ recv(0, 0, 0, 0);
+ ],[
+ AC_MSG_RESULT([yes])
+ curl_cv_recv="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ curl_cv_recv="no"
+ ])
+ #
+ if test "$curl_cv_recv" = "yes"; then
+ AC_CACHE_CHECK([types of arguments and return type for recv],
+ [curl_cv_func_recv_args], [
+ curl_cv_func_recv_args="unknown"
+ for recv_retv in 'int' 'ssize_t'; do
+ for recv_arg1 in 'int' 'ssize_t'; do
+ for recv_arg2 in 'void *' 'char *'; do
+ for recv_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int' 'DWORD'; do
+ for recv_arg4 in 'int' 'unsigned int'; do
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([
+#undef inline
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+ extern $recv_retv recv($recv_arg1, $recv_arg2, $recv_arg3, $recv_arg4);
+ ],[
+ $recv_arg1 s=0;
+ $recv_arg2 buf=0;
+ $recv_arg3 len=0;
+ $recv_arg4 flags=0;
+ $recv_retv res = recv(s, buf, len, flags);
+ ])
+ ],[
+ curl_cv_func_recv_args="$recv_arg1,$recv_arg2,$recv_arg3,$recv_arg4,$recv_retv"
+ break 5
+ ])
+ done
+ done
+ done
+ done
+ done
+ ]) # AC_CACHE_CHECK
+ if test "$curl_cv_func_recv_args" = "unknown"; then
+ AC_MSG_WARN([Cannot find proper types to use for recv args])
+ AC_MSG_WARN([HAVE_RECV will not be defined])
+ else
+ recv_prev_IFS=$IFS; IFS=','
+ set dummy `echo "$curl_cv_func_recv_args" | sed 's/\*/\*/g'`
+ IFS=$recv_prev_IFS
+ shift
+ #
+ AC_DEFINE_UNQUOTED(RECV_TYPE_ARG1, $[1],
+ [Define to the type of arg 1 for recv.])
+ AC_DEFINE_UNQUOTED(RECV_TYPE_ARG2, $[2],
+ [Define to the type of arg 2 for recv.])
+ AC_DEFINE_UNQUOTED(RECV_TYPE_ARG3, $[3],
+ [Define to the type of arg 3 for recv.])
+ AC_DEFINE_UNQUOTED(RECV_TYPE_ARG4, $[4],
+ [Define to the type of arg 4 for recv.])
+ AC_DEFINE_UNQUOTED(RECV_TYPE_RETV, $[5],
+ [Define to the function return type for recv.])
+ #
+ AC_DEFINE_UNQUOTED(HAVE_RECV, 1,
+ [Define to 1 if you have the recv function.])
+ ac_cv_func_recv="yes"
+ fi
+ fi
+]) # AC_DEFUN
+
+
+dnl CURL_CHECK_FUNC_SEND
+dnl -------------------------------------------------
+dnl Test if the socket send() function is available,
+dnl and check its return type and the types of its
+dnl arguments. If the function succeeds HAVE_SEND
+dnl will be defined, defining the types of the arguments
+dnl in SEND_TYPE_ARG1, SEND_TYPE_ARG2, SEND_TYPE_ARG3
+dnl and SEND_TYPE_ARG4, defining the type of the function
+dnl return value in SEND_TYPE_RETV.
+
+AC_DEFUN([CURL_CHECK_FUNC_SEND], [
+ AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+ #
+ AC_MSG_CHECKING([for send])
+ AC_TRY_LINK([
+#undef inline
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+ ],[
+ send(0, 0, 0, 0);
+ ],[
+ AC_MSG_RESULT([yes])
+ curl_cv_send="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ curl_cv_send="no"
+ ])
+ #
+ if test "$curl_cv_send" = "yes"; then
+ AC_CACHE_CHECK([types of arguments and return type for send],
+ [curl_cv_func_send_args], [
+ curl_cv_func_send_args="unknown"
+ for send_retv in 'int' 'ssize_t'; do
+ for send_arg1 in 'int' 'ssize_t'; do
+ for send_arg2 in 'void *' 'char *'; do
+ for send_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int' 'DWORD'; do
+ for send_arg4 in 'int' 'unsigned int'; do
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([
+#undef inline
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+ extern $send_retv send($send_arg1, $send_arg2, $send_arg3, $send_arg4);
+ ],[
+ $send_arg1 s=0;
+ $send_arg2 buf=0;
+ $send_arg3 len=0;
+ $send_arg4 flags=0;
+ $send_retv res = send(s, buf, len, flags);
+ ])
+ ],[
+ curl_cv_func_send_args="$send_arg1,$send_arg2,$send_arg3,$send_arg4,$send_retv"
+ break 5
+ ])
+ done
+ done
+ done
+ done
+ done
+ ]) # AC_CACHE_CHECK
+ if test "$curl_cv_func_send_args" = "unknown"; then
+ AC_MSG_WARN([Cannot find proper types to use for send args])
+ AC_MSG_WARN([HAVE_SEND will not be defined])
+ else
+ send_prev_IFS=$IFS; IFS=','
+ set dummy `echo "$curl_cv_func_send_args" | sed 's/\*/\*/g'`
+ IFS=$send_prev_IFS
+ shift
+ #
+ AC_DEFINE_UNQUOTED(SEND_TYPE_ARG1, $[1],
+ [Define to the type of arg 1 for send.])
+ AC_DEFINE_UNQUOTED(SEND_TYPE_ARG2, $[2],
+ [Define to the type of arg 2 for send.])
+ AC_DEFINE_UNQUOTED(SEND_TYPE_ARG3, $[3],
+ [Define to the type of arg 3 for send.])
+ AC_DEFINE_UNQUOTED(SEND_TYPE_ARG4, $[4],
+ [Define to the type of arg 4 for send.])
+ AC_DEFINE_UNQUOTED(SEND_TYPE_RETV, $[5],
+ [Define to the function return type for send.])
+ #
+ AC_DEFINE_UNQUOTED(HAVE_SEND, 1,
+ [Define to 1 if you have the send function.])
+ ac_cv_func_send="yes"
+ fi
+ fi
+]) # AC_DEFUN
+
+
dnl CURL_CHECK_NONBLOCKING_SOCKET
dnl -------------------------------------------------
dnl Check for how to set a socket to non-blocking state. There seems to exist