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/*

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 * Copyright (c) 2016 Mario de Sousa (msousa@fe.up.pt)

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 *

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 * This file is part of the Modbus library for Beremiz and matiec.

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 *

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 * This Modbus library is free software: you can redistribute it and/or modify

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 * it under the terms of the GNU Lesser General Public License as published by

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 * the Free Software Foundation, either version 3 of the License, or

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 * (at your option) any later version.

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 *

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 * This program is distributed in the hope that it will be useful, but

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 * WITHOUT ANY WARRANTY; without even the implied warranty of

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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 

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 * General Public License for more details.

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 *

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 * You should have received a copy of the GNU Lesser General Public License

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 * along with this Modbus library.  If not, see <http://www.gnu.org/licenses/>.

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 *

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 * This code is made available on the understanding that it will not be

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 * used in safety-critical situations without a full and competent review.

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 */

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#ifndef SIN_UTIL_H

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#define SIN_UTIL_H

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#include <sys/types.h>

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#include <sys/socket.h>

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#include <netinet/in.h>

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#include <arpa/inet.h>

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/* Create a socket for the IP protocol family, and connect to remote host. */

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int sin_connsock(const char *host, const char *service, const char *protocol);

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/* Create a socket for the IP protocol family, and bind to local host's port. */

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int sin_bindsock(const char *host, const char *service, const char *protocol);

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/* Initialize a in_addr structure */

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int sin_initaddr(struct sockaddr_in *sin,

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                 const char *host,    int allow_null_host, // 1 => allow host NULL, "" or "*" -> INADDR_ANY

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                 const char *service, int allow_null_serv, // 1 => allow serivce NULL or ""   -> port = 0

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                 const char *protocol);

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#endif