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diff --git a/erts/emulator/nifs/common/socket_int.h b/erts/emulator/nifs/common/socket_int.h
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+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2018-2018. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * %CopyrightEnd%
+ *
+ * ----------------------------------------------------------------------
+ * Purpose : Utility "stuff" for socket and net.
+ * ----------------------------------------------------------------------
+ *
+ */
+
+#ifndef SOCKET_INT_H__
+#define SOCKET_INT_H__
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef __WIN32__
+
+/* All this just to replace sys/socket.h, netinet/in.h and sys/un.h??? */
+#define INCL_WINSOCK_API_TYPEDEFS 1
+#ifndef WINDOWS_H_INCLUDES_WINSOCK2_H
+#include <winsock2.h>
+#endif
+#include <windows.h>
+#include <Ws2tcpip.h> /* NEED VC 6.0 or higher */
+/* Visual studio 2008+: NTDDI_VERSION needs to be set for iphlpapi.h
+ * to define the right structures. It needs to be set to WINXP (or LONGHORN)
+ * for IPV6 to work and it's set lower by default, so we need to change it.
+ */
+#ifdef HAVE_SDKDDKVER_H
+# include <sdkddkver.h>
+# ifdef NTDDI_VERSION
+# undef NTDDI_VERSION
+# endif
+# define NTDDI_VERSION NTDDI_WINXP
+#endif
+#include <iphlpapi.h>
+
+#else /* !__WIN32__ */
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#ifdef HAVE_SYS_UN_H
+#include <sys/un.h>
+#endif
+
+#endif
+
+#include <erl_nif.h>
+
+/* The general purpose sockaddr */
+typedef union {
+ /* General sockaddr */
+ struct sockaddr in;
+
+ /* IPv4 sockaddr */
+ struct sockaddr_in in4;
+
+ /* IPv6 sockaddr */
+#if defined(HAVE_IN6) && defined(AF_INET6)
+ struct sockaddr_in6 in6;
+#endif
+
+ /* Unix Domain Socket sockaddr */
+#if defined(HAVE_SYS_UN_H)
+ struct sockaddr_un un;
+#endif
+
+} SocketAddress;
+
+
+typedef unsigned int BOOLEAN_T;
+#define TRUE 1
+#define FALSE 0
+
+
+/* Misc error strings */
+#define ESOCK_STR_EINVAL "einval"
+#define ESOCK_STR_EAFNOSUPPORT "eafnosupport"
+
+
+/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ * Misc atoms
+ */
+extern ERL_NIF_TERM esock_atom_addr;
+extern ERL_NIF_TERM esock_atom_any;
+extern ERL_NIF_TERM esock_atom_dgram;
+extern ERL_NIF_TERM esock_atom_error;
+extern ERL_NIF_TERM esock_atom_family;
+extern ERL_NIF_TERM esock_atom_flowinfo;
+extern ERL_NIF_TERM esock_atom_inet;
+extern ERL_NIF_TERM esock_atom_inet6;
+extern ERL_NIF_TERM esock_atom_local;
+extern ERL_NIF_TERM esock_atom_loopback;
+extern ERL_NIF_TERM esock_atom_ok;
+extern ERL_NIF_TERM esock_atom_path;
+extern ERL_NIF_TERM esock_atom_port;
+extern ERL_NIF_TERM esock_atom_raw;
+extern ERL_NIF_TERM esock_atom_scope_id;
+extern ERL_NIF_TERM esock_atom_seqpacket;
+extern ERL_NIF_TERM esock_atom_stream;
+extern ERL_NIF_TERM esock_atom_undefined;
+
+
+/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ * Error value (=reason) atoms
+ */
+extern ERL_NIF_TERM esock_atom_eagain;
+extern ERL_NIF_TERM esock_atom_eafnosupport;
+extern ERL_NIF_TERM esock_atom_einval;
+
+
+/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ * Various wrapper macros for enif functions
+ */
+#define MALLOC(SZ) enif_alloc((SZ))
+#define FREE(P) enif_free((P))
+
+#define MKA(E,S) enif_make_atom((E), (S))
+#define MKBIN(E,B) enif_make_binary((E), (B))
+#define MKI(E,I) enif_make_int((E), (I))
+#define MKLA(E,A,L) enif_make_list_from_array((E), (A), (L))
+#define MKEL(E) enif_make_list((E), 0)
+#define MKMA(E,KA,VA,L,M) enif_make_map_from_arrays((E), (KA), (VA), (L), (M))
+#define MKREF(E) enif_make_ref((E))
+#define MKS(E,S) enif_make_string((E), (S), ERL_NIF_LATIN1)
+#define MKSL(E,S,L) enif_make_string_len((E), (S), (L), ERL_NIF_LATIN1)
+#define MKSBIN(E,B,ST,SZ) enif_make_sub_binary((E), (B), (ST), (SZ))
+#define MKT2(E,E1,E2) enif_make_tuple2((E), (E1), (E2))
+#define MKT3(E,E1,E2,E3) enif_make_tuple3((E), (E1), (E2), (E3))
+#define MKT4(E,E1,E2,E3,E4) enif_make_tuple4((E), (E1), (E2), (E3), (E4))
+#define MKT5(E,E1,E2,E3,E4,E5) \
+ enif_make_tuple5((E), (E1), (E2), (E3), (E4), (E5))
+#define MKT8(E,E1,E2,E3,E4,E5,E6,E7,E8) \
+ enif_make_tuple8((E), (E1), (E2), (E3), (E4), (E5), (E6), (E7), (E8))
+#define MKTA(E, A, AL) enif_make_tuple_from_array((E), (A), (AL))
+
+#define MCREATE(N) enif_mutex_create((N))
+#define MDESTROY(M) enif_mutex_destroy((M))
+#define MLOCK(M) enif_mutex_lock((M))
+#define MUNLOCK(M) enif_mutex_unlock((M))
+
+#define MONP(E,D,P,M) enif_monitor_process((E), (D), (P), (M))
+#define DEMONP(E,D,M) enif_demonitor_process((E), (D), (M))
+
+#define SELECT(E,FD,M,O,P,R) \
+ if (enif_select((E), (FD), (M), (O), (P), (R)) < 0) \
+ return enif_make_badarg((E));
+
+#define COMPARE(A, B) enif_compare((A), (B))
+
+#define IS_ATOM(E, TE) enif_is_atom((E), (TE))
+#define IS_BIN(E, TE) enif_is_binary((E), (TE))
+#define IS_LIST(E, TE) enif_is_list((E), (TE))
+#define IS_MAP(E, TE) enif_is_map((E), (TE))
+#define IS_NUM(E, TE) enif_is_number((E), (TE))
+#define IS_TUPLE(E, TE) enif_is_tuple((E), (TE))
+
+#define GET_ATOM_LEN(E, TE, LP) \
+ enif_get_atom_length((E), (TE), (LP), ERL_NIF_LATIN1)
+#define GET_ATOM(E, TE, BP, MAX) \
+ enif_get_atom((E), (TE), (BP), (MAX), ERL_NIF_LATIN1)
+#define GET_BIN(E, TE, BP) enif_inspect_iolist_as_binary((E), (TE), (BP))
+#define GET_INT(E, TE, IP) enif_get_int((E), (TE), (IP))
+#define GET_LIST_ELEM(E, L, HP, TP) enif_get_list_cell((E), (L), (HP), (TP))
+#define GET_LIST_LEN(E, L, LP) enif_get_list_length((E), (L), (LP))
+#define GET_STR(E, L, B, SZ) \
+ enif_get_string((E), (L), (B), (SZ), ERL_NIF_LATIN1)
+#define GET_UINT(E, TE, IP) enif_get_uint((E), (TE), (IP))
+#define GET_TUPLE(E, TE, TSZ, TA) enif_get_tuple((E), (TE), (TSZ), (TA))
+#define GET_MAP_VAL(E, M, K, V) enif_get_map_value((E), (M), (K), (V))
+
+#define ALLOC_BIN(SZ, BP) enif_alloc_binary((SZ), (BP))
+#define REALLOC_BIN(SZ, BP) enif_realloc_binary((SZ), (BP))
+
+
+#endif // SOCKET_INT_H__
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