configure: add --with-amissl

AmiSSL is an Amiga native library which provides a wrapper over OpenSSL.
It also requires all programs using it to use bsdsocket.library
directly, rather than accessing socket functions through clib, which
libcurl was not necessarily doing previously. Configure will now check
for the headers and ensure they are included if found.

Closes #3677

8 files changed, 194 insertions, 21 deletions

diff --git a/acinclude.m4 b/acinclude.m4
index 41909dec7..24dad3914 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1031,6 +1031,10 @@ AC_DEFUN([CURL_CHECK_FUNC_RECV], [
 #endif
 #endif
 #else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include <proto/bsdsocket.h>
+struct Library *SocketBase = NULL;
+#endif
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -1076,6 +1080,10 @@ AC_DEFUN([CURL_CHECK_FUNC_RECV], [
 #endif
 #define RECVCALLCONV PASCAL
 #else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include <proto/bsdsocket.h>
+struct Library *SocketBase = NULL;
+#endif
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -1084,8 +1092,10 @@ AC_DEFUN([CURL_CHECK_FUNC_RECV], [
 #endif
 #define RECVCALLCONV
 #endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
                       extern $recv_retv RECVCALLCONV
                       recv($recv_arg1, $recv_arg2, $recv_arg3, $recv_arg4);
+#endif
                     ]],[[
                       $recv_arg1 s=0;
                       $recv_arg2 buf=0;
@@ -1165,6 +1175,10 @@ AC_DEFUN([CURL_CHECK_FUNC_SEND], [
 #endif
 #endif
 #else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include <proto/bsdsocket.h>
+struct Library *SocketBase = NULL;
+#endif
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -1210,6 +1224,10 @@ AC_DEFUN([CURL_CHECK_FUNC_SEND], [
 #endif
 #define SENDCALLCONV PASCAL
 #else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include <proto/bsdsocket.h>
+struct Library *SocketBase = NULL;
+#endif
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -1218,8 +1236,10 @@ AC_DEFUN([CURL_CHECK_FUNC_SEND], [
 #endif
 #define SENDCALLCONV
 #endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
                       extern $send_retv SENDCALLCONV
                       send($send_arg1, $send_arg2, $send_arg3, $send_arg4);
+#endif
                     ]],[[
                       $send_arg1 s=0;
                       $send_arg3 len=0;
@@ -1321,6 +1341,10 @@ AC_DEFUN([CURL_CHECK_MSG_NOSIGNAL], [
 #endif
 #endif
 #else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include <proto/bsdsocket.h>
+struct Library *SocketBase = NULL;
+#endif
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -1714,6 +1738,7 @@ dnl using current libraries or if another one is required.
 
 AC_DEFUN([CURL_CHECK_LIBS_CONNECT], [
   AC_REQUIRE([CURL_INCLUDES_WINSOCK2])dnl
+  AC_REQUIRE([CURL_INCLUDES_BSDSOCKET])dnl
   AC_MSG_CHECKING([for connect in libraries])
   tst_connect_save_LIBS="$LIBS"
   tst_connect_need_LIBS="unknown"
@@ -1723,7 +1748,8 @@ AC_DEFUN([CURL_CHECK_LIBS_CONNECT], [
       AC_LINK_IFELSE([
         AC_LANG_PROGRAM([[
           $curl_includes_winsock2
-          #ifndef HAVE_WINDOWS_H
+          $curl_includes_bsdsocket
+          #if !defined(HAVE_WINDOWS_H) && !defined(HAVE_PROTO_BSDSOCKET_H)
             int connect(int, void*, int);
           #endif
         ]],[[
@@ -1854,6 +1880,11 @@ AC_DEFUN([CURL_CHECK_FUNC_SELECT], [
 #endif
 #endif
 #ifndef HAVE_WINDOWS_H
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include <proto/bsdsocket.h>
+struct Library *SocketBase = NULL;
+#define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
+#endif
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
 #endif
@@ -1912,6 +1943,11 @@ AC_DEFUN([CURL_CHECK_FUNC_SELECT], [
 #endif
 #endif
 #ifndef HAVE_WINDOWS_H
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include <proto/bsdsocket.h>
+struct Library *SocketBase = NULL;
+#define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
+#endif
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
 #endif
@@ -1926,12 +1962,14 @@ AC_DEFUN([CURL_CHECK_FUNC_SELECT], [
                       long tv_usec;
                     };
 #endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
                     extern $sel_retv SELECTCALLCONV
 				select($sel_arg1,
 					$sel_arg234,
 					$sel_arg234,
 					$sel_arg234,
 					$sel_arg5);
+#endif
                   ]],[[
                     $sel_arg1   nfds=0;
                     $sel_arg234 rfds=0;
diff --git a/configure.ac b/configure.ac
index 3707a886e..6d5ec2c0f 100755
--- a/configure.ac
+++ b/configure.ac
@@ -155,7 +155,7 @@ AC_SUBST(PKGADD_VENDOR)
 
 dnl
 dnl initialize all the info variables
-    curl_ssl_msg="no      (--with-{ssl,gnutls,nss,polarssl,mbedtls,cyassl,schannel,secure-transport,mesalink} )"
+    curl_ssl_msg="no      (--with-{ssl,gnutls,nss,polarssl,mbedtls,cyassl,schannel,secure-transport,mesalink,amissl} )"
     curl_ssh_msg="no      (--with-libssh2)"
    curl_zlib_msg="no      (--with-zlib)"
  curl_brotli_msg="no      (--with-brotli)"
@@ -365,6 +365,7 @@ CURL_CHECK_WIN32_LARGEFILE
 CURL_MAC_CFLAGS
 CURL_SUPPORTS_BUILTIN_AVAILABLE
 
+
 dnl ************************************************************
 dnl switch off particular protocols
 dnl
@@ -839,6 +840,28 @@ fi
 
 if test "$HAVE_GETHOSTBYNAME" != "1"
 then
+  dnl This is for AmigaOS with bsdsocket.library - needs testing before -lnet
+  AC_MSG_CHECKING([for gethostbyname for AmigaOS bsdsocket.library])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+#include <proto/bsdsocket.h>
+struct Library *SocketBase = NULL;
+    ]],[[
+      gethostbyname("www.dummysite.com");
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    HAVE_GETHOSTBYNAME="1"
+    HAVE_PROTO_BSDSOCKET_H="1"
+    AC_DEFINE(HAVE_PROTO_BSDSOCKET_H, 1, [if Amiga bsdsocket.library is in use])
+    AC_SUBST(HAVE_PROTO_BSDSOCKET_H, [1])
+  ],[
+    AC_MSG_RESULT([no])
+  ])
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
   dnl gethostbyname in the network lib - for Haiku OS
   AC_CHECK_LIB(network, gethostbyname,
                [HAVE_GETHOSTBYNAME="1"
@@ -1539,6 +1562,35 @@ else
   AC_MSG_RESULT(no)
 fi
 
+OPT_AMISSL=no
+AC_ARG_WITH(amissl,dnl
+AC_HELP_STRING([--with-amissl],[enable Amiga native SSL/TLS (AmiSSL)])
+AC_HELP_STRING([--without-amissl], [disable Amiga native SSL/TLS (AmiSSL)]),
+  OPT_AMISSL=$withval)
+
+AC_MSG_CHECKING([whether to enable Amiga native SSL/TLS (AmiSSL)])
+if test "$HAVE_PROTO_BSDSOCKET_H" == "1"; then
+  if test -z "$ssl_backends" -o "x$OPT_AMISSL" != xno; then
+    ssl_msg=
+    if test "x$OPT_AMISSL" != "xno"; then
+      AC_MSG_RESULT(yes)
+      ssl_msg="AmiSSL"
+      test amissl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+      AMISSL_ENABLED=1
+      LIBS="-lamisslauto $LIBS"
+      AC_DEFINE(USE_AMISSL, 1, [if AmiSSL is in use])
+      AC_DEFINE(USE_OPENSSL, 1, [if OpenSSL is in use])
+    else
+      AC_MSG_RESULT(no)
+    fi
+    test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+  else
+    AC_MSG_RESULT(no)
+  fi
+else
+  AC_MSG_RESULT(no)
+fi
+
 dnl **********************************************************************
 dnl Check for the presence of SSL libraries and headers
 dnl **********************************************************************
@@ -2638,10 +2690,10 @@ if test -z "$ssl_backends" -o "x$OPT_NSS" != xno; then
   test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
 fi
 
-case "x$OPENSSL_ENABLED$GNUTLS_ENABLED$NSS_ENABLED$POLARSSL_ENABLED$MBEDTLS_ENABLED$CYASSL_ENABLED$WINSSL_ENABLED$SECURETRANSPORT_ENABLED$MESALINK_ENABLED" in
+case "x$OPENSSL_ENABLED$GNUTLS_ENABLED$NSS_ENABLED$POLARSSL_ENABLED$MBEDTLS_ENABLED$CYASSL_ENABLED$WINSSL_ENABLED$SECURETRANSPORT_ENABLED$MESALINK_ENABLED$AMISSL_ENABLED" in
 x)
   AC_MSG_WARN([SSL disabled, you will not be able to use HTTPS, FTPS, NTLM and more.])
-  AC_MSG_WARN([Use --with-ssl, --with-gnutls, --with-polarssl, --with-cyassl, --with-nss, --with-schannel, --with-secure-transport, or --with-mesalink to address this.])
+  AC_MSG_WARN([Use --with-ssl, --with-gnutls, --with-polarssl, --with-cyassl, --with-nss, --with-schannel, --with-secure-transport, --with-mesalink or --with-amissl to address this.])
   ;;
 x1)
   # one SSL backend is enabled
@@ -3522,6 +3574,7 @@ dnl default includes
 ]
 )
 
+
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 CURL_CHECK_VARIADIC_MACROS
diff --git a/lib/amigaos.c b/lib/amigaos.c
index 4f55b30e7..cf44bdc8d 100644
--- a/lib/amigaos.c
+++ b/lib/amigaos.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2019, 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
@@ -22,17 +22,26 @@
 
 #include "curl_setup.h"
 
-#if defined(__AMIGA__) && !defined(__ixemul__)
-
-#include <amitcp/socketbasetags.h>
+#ifdef __AMIGA__
+#  include "amigaos.h"
+#  if defined(HAVE_PROTO_BSDSOCKET_H) && !defined(USE_AMISSL)
+#    include <amitcp/socketbasetags.h>
+#  endif
+#  ifdef __libnix__
+#    include <stabs.h>
+#  endif
+#endif
 
-#include "amigaos.h"
+/* The last #include files should be: */
+#include "curl_memory.h"
+#include "memdebug.h"
 
+#ifdef __AMIGA__
+#if defined(HAVE_PROTO_BSDSOCKET_H) && !defined(USE_AMISSL)
 struct Library *SocketBase = NULL;
 extern int errno, h_errno;
 
 #ifdef __libnix__
-#include <stabs.h>
 void __request(const char *msg);
 #else
 # define __request(msg)       Printf(msg "\n\a")
@@ -74,4 +83,13 @@ bool Curl_amiga_init()
 ADD2EXIT(Curl_amiga_cleanup, -50);
 #endif
 
-#endif /* __AMIGA__ && ! __ixemul__ */
+#endif /* HAVE_PROTO_BSDSOCKET_H */
+
+#ifdef USE_AMISSL
+void Curl_amiga_X509_free(X509 *a)
+{
+  X509_free(a);
+}
+#endif /* USE_AMISSL */
+#endif /* __AMIGA__ */
+
diff --git a/lib/amigaos.h b/lib/amigaos.h
index 7c0926cc3..c776c9c9b 100644
--- a/lib/amigaos.h
+++ b/lib/amigaos.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2019, 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
@@ -23,7 +23,7 @@
  ***************************************************************************/
 #include "curl_setup.h"
 
-#if defined(__AMIGA__) && !defined(__ixemul__)
+#if defined(__AMIGA__) && defined(HAVE_BSDSOCKET_H) && !defined(USE_AMISSL)
 
 bool Curl_amiga_init();
 void Curl_amiga_cleanup();
@@ -35,4 +35,10 @@ void Curl_amiga_cleanup();
 
 #endif
 
+#ifdef USE_AMISSL
+#include <openssl/x509v3.h>
+void Curl_amiga_X509_free(X509 *a);
+#endif /* USE_AMISSL */
+
 #endif /* HEADER_CURL_AMIGAOS_H */
+
diff --git a/lib/curl_setup.h b/lib/curl_setup.h
index 742665440..4c3a17359 100644
--- a/lib/curl_setup.h
+++ b/lib/curl_setup.h
@@ -310,11 +310,12 @@
 #endif
 
 #ifdef __AMIGA__
-#  ifndef __ixemul__
-#    include <exec/types.h>
-#    include <exec/execbase.h>
-#    include <proto/exec.h>
-#    include <proto/dos.h>
+#  include <exec/types.h>
+#  include <exec/execbase.h>
+#  include <proto/exec.h>
+#  include <proto/dos.h>
+#  ifdef HAVE_PROTO_BSDSOCKET_H
+#    include <proto/bsdsocket.h> /* ensure bsdsocket.library use */
 #    define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
 #  endif
 #endif
diff --git a/lib/md5.c b/lib/md5.c
index a17a58fa6..db4cc2656 100644
--- a/lib/md5.c
+++ b/lib/md5.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2019, 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
@@ -83,7 +83,7 @@ static void MD5_Final(unsigned char digest[16], MD5_CTX * ctx)
   gcry_md_close(*ctx);
 }
 
-#elif defined(USE_OPENSSL)
+#elif defined(USE_OPENSSL) && !defined(USE_AMISSL)
 /* When OpenSSL is available we use the MD5-function from OpenSSL */
 #include <openssl/md5.h>
 #include "curl_memory.h"
diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 56e2ba2ca..186ee34e5 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -65,6 +65,10 @@
 #include <openssl/buffer.h>
 #include <openssl/pkcs12.h>
 
+#ifdef USE_AMISSL
+#include "amigaos.h"
+#endif
+
 #if (OPENSSL_VERSION_NUMBER >= 0x0090808fL) && !defined(OPENSSL_NO_OCSP)
 #include <openssl/ocsp.h>
 #endif
@@ -820,8 +824,11 @@ int cert_stuff(struct connectdata *conn,
   fail:
       EVP_PKEY_free(pri);
       X509_free(x509);
+#ifdef USE_AMISSL
+      sk_X509_pop_free(ca, Curl_amiga_X509_free);
+#else
       sk_X509_pop_free(ca, X509_free);
-
+#endif
       if(!cert_done)
         return 0; /* failure! */
       break;
diff --git a/m4/curl-functions.m4 b/m4/curl-functions.m4
index 92a017b62..8249108bb 100644
--- a/m4/curl-functions.m4
+++ b/m4/curl-functions.m4
@@ -545,6 +545,25 @@ curl_includes_ws2tcpip="\
 ])
 
 
+dnl CURL_INCLUDES_BSDSOCKET
+dnl -------------------------------------------------
+dnl Set up variable with list of headers that must be
+dnl included when bsdsocket.h is to be included.
+
+AC_DEFUN([CURL_INCLUDES_BSDSOCKET], [
+curl_includes_bsdsocket="\
+/* includes start */
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#  include <proto/bsdsocket.h>
+  struct Library *SocketBase = NULL;
+#endif
+/* includes end */"
+  AC_CHECK_HEADERS(
+    proto/bsdsocket.h,
+    [], [], [      $curl_includes_bsdsocket])
+])
+
+
 dnl CURL_PREPROCESS_CALLCONV
 dnl -------------------------------------------------
 dnl Set up variable with a preprocessor block which
@@ -759,6 +778,7 @@ AC_DEFUN([CURL_CHECK_FUNC_CLOSESOCKET], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_socket
     ]],[[
       if(0 != closesocket(0))
@@ -776,6 +796,7 @@ AC_DEFUN([CURL_CHECK_FUNC_CLOSESOCKET], [
     AC_MSG_CHECKING([if closesocket is prototyped])
     AC_EGREP_CPP([closesocket],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_socket
     ],[
       AC_MSG_RESULT([yes])
@@ -791,6 +812,7 @@ AC_DEFUN([CURL_CHECK_FUNC_CLOSESOCKET], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_socket
       ]],[[
         if(0 != closesocket(0))
@@ -944,6 +966,7 @@ AC_DEFUN([CURL_CHECK_FUNC_CONNECT], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_sys_socket
       $curl_includes_socket
     ]],[[
@@ -962,6 +985,7 @@ AC_DEFUN([CURL_CHECK_FUNC_CONNECT], [
     AC_MSG_CHECKING([if connect is prototyped])
     AC_EGREP_CPP([connect],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_sys_socket
       $curl_includes_socket
     ],[
@@ -978,6 +1002,7 @@ AC_DEFUN([CURL_CHECK_FUNC_CONNECT], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_sys_socket
         $curl_includes_socket
       ]],[[
@@ -2206,6 +2231,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTBYADDR], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_netdb
     ]],[[
       if(0 != gethostbyaddr(0, 0, 0))
@@ -2223,6 +2249,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTBYADDR], [
     AC_MSG_CHECKING([if gethostbyaddr is prototyped])
     AC_EGREP_CPP([gethostbyaddr],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_netdb
     ],[
       AC_MSG_RESULT([yes])
@@ -2238,6 +2265,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTBYADDR], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_netdb
       ]],[[
         if(0 != gethostbyaddr(0, 0, 0))
@@ -2299,6 +2327,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GAI_STRERROR], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_netdb
     ]],[[
       if(0 != gai_strerror(0))
@@ -2316,6 +2345,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GAI_STRERROR], [
     AC_MSG_CHECKING([if gai_strerror is prototyped])
     AC_EGREP_CPP([gai_strerror],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_netdb
     ],[
       AC_MSG_RESULT([yes])
@@ -2331,6 +2361,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GAI_STRERROR], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_netdb
       ]],[[
         if(0 != gai_strerror(0))
@@ -2535,6 +2566,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTBYNAME], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_netdb
     ]],[[
       if(0 != gethostbyname(0))
@@ -2552,6 +2584,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTBYNAME], [
     AC_MSG_CHECKING([if gethostbyname is prototyped])
     AC_EGREP_CPP([gethostbyname],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_netdb
     ],[
       AC_MSG_RESULT([yes])
@@ -2567,6 +2600,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTBYNAME], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_netdb
       ]],[[
         if(0 != gethostbyname(0))
@@ -2762,6 +2796,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTNAME], [
   AC_REQUIRE([CURL_INCLUDES_WINSOCK2])dnl
   AC_REQUIRE([CURL_INCLUDES_UNISTD])dnl
   AC_REQUIRE([CURL_PREPROCESS_CALLCONV])dnl
+  AC_REQUIRE([CURL_INCLUDES_BSDSOCKET])dnl
   #
   tst_links_gethostname="unknown"
   tst_proto_gethostname="unknown"
@@ -2772,6 +2807,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTNAME], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_unistd
     ]],[[
       if(0 != gethostname(0, 0))
@@ -2789,6 +2825,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTNAME], [
     AC_MSG_CHECKING([if gethostname is prototyped])
     AC_EGREP_CPP([gethostname],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_unistd
     ],[
       AC_MSG_RESULT([yes])
@@ -2804,6 +2841,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTNAME], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_unistd
       ]],[[
         if(0 != gethostname(0, 0))
@@ -2827,6 +2865,7 @@ AC_DEFUN([CURL_CHECK_FUNC_GETHOSTNAME], [
           AC_COMPILE_IFELSE([
             AC_LANG_PROGRAM([[
               $curl_includes_winsock2
+      $curl_includes_bsdsocket
               $curl_includes_unistd
               $curl_preprocess_callconv
               extern int FUNCALLCONV gethostname($tst_arg1, $tst_arg2);
@@ -4023,6 +4062,7 @@ AC_DEFUN([CURL_CHECK_FUNC_IOCTLSOCKET], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
     ]],[[
       if(0 != ioctlsocket(0, 0, 0))
         return 1;
@@ -4039,6 +4079,7 @@ AC_DEFUN([CURL_CHECK_FUNC_IOCTLSOCKET], [
     AC_MSG_CHECKING([if ioctlsocket is prototyped])
     AC_EGREP_CPP([ioctlsocket],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
     ],[
       AC_MSG_RESULT([yes])
       tst_proto_ioctlsocket="yes"
@@ -4053,6 +4094,7 @@ AC_DEFUN([CURL_CHECK_FUNC_IOCTLSOCKET], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
       ]],[[
         if(0 != ioctlsocket(0, 0, 0))
           return 1;
@@ -4111,6 +4153,7 @@ AC_DEFUN([CURL_CHECK_FUNC_IOCTLSOCKET_FIONBIO], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
       ]],[[
         int flags = 0;
         if(0 != ioctlsocket(0, FIONBIO, &flags))
@@ -4925,6 +4968,7 @@ AC_DEFUN([CURL_CHECK_FUNC_SETSOCKOPT], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_sys_socket
     ]],[[
       if(0 != setsockopt(0, 0, 0, 0, 0))
@@ -4942,6 +4986,7 @@ AC_DEFUN([CURL_CHECK_FUNC_SETSOCKOPT], [
     AC_MSG_CHECKING([if setsockopt is prototyped])
     AC_EGREP_CPP([setsockopt],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_sys_socket
     ],[
       AC_MSG_RESULT([yes])
@@ -4957,6 +5002,7 @@ AC_DEFUN([CURL_CHECK_FUNC_SETSOCKOPT], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_sys_socket
       ]],[[
         if(0 != setsockopt(0, 0, 0, 0, 0))
@@ -5016,6 +5062,7 @@ AC_DEFUN([CURL_CHECK_FUNC_SETSOCKOPT_SO_NONBLOCK], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_sys_socket
       ]],[[
         if(0 != setsockopt(0, SOL_SOCKET, SO_NONBLOCK, 0, 0))
@@ -5561,6 +5608,7 @@ AC_DEFUN([CURL_CHECK_FUNC_SOCKET], [
   AC_LINK_IFELSE([
     AC_LANG_PROGRAM([[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_sys_socket
       $curl_includes_socket
     ]],[[
@@ -5579,6 +5627,7 @@ AC_DEFUN([CURL_CHECK_FUNC_SOCKET], [
     AC_MSG_CHECKING([if socket is prototyped])
     AC_EGREP_CPP([socket],[
       $curl_includes_winsock2
+      $curl_includes_bsdsocket
       $curl_includes_sys_socket
       $curl_includes_socket
     ],[
@@ -5595,6 +5644,7 @@ AC_DEFUN([CURL_CHECK_FUNC_SOCKET], [
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM([[
         $curl_includes_winsock2
+      $curl_includes_bsdsocket
         $curl_includes_sys_socket
         $curl_includes_socket
       ]],[[