1 /*

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

     3  *

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

     5  *

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

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

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

     9  * (at your option) any later version.

    10  *

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

    12  * WITHOUT ANY WARRANTY; without even the implied warranty of

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

    14  * General Public License for more details.

    15  *

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

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

    18  *

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

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

    21  */

    22 

    23 

    24 #ifndef SIN_UTIL_H

    25 #define SIN_UTIL_H

    26 

    27 

    28 #include <sys/types.h>

    29 #include <sys/socket.h>

    30 #include <netinet/in.h>

    31 #include <arpa/inet.h>

    32 

    33 

    34 

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

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

    37 

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

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

    40 

    41 /* Initialize a in_addr structure */

    42 int sin_initaddr(struct sockaddr_in *sin,

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

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

    45                  const char *protocol);

    46 #endif