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annotate src/g23m-fad/tcpip/rnet/rnet_rt/rnet_rt_api_getproto.c @ 1:d393cd9bb723

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src/g23m-*: initial import from Magnetite
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 15 Jul 2018 04:40:46 +0000
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d393cd9bb723 src/g23m-*: initial import from Magnetite
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1 /**
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2 * @file rnet_rt_api_getproto.c
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3 *
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4 * RNET_RT API
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5 *
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6 * @author Regis Feneon
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7 * @version 0.1
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8 */
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9
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10 /*
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11 * $Id: rnet_rt_api_getproto.c,v 1.3 2002/10/30 15:23:34 rf Exp $
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12 * $Name: ti_20021030 $
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13 *
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14 * History:
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15 *
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16 * Date Author Modification
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17 * --------------------------------------------------
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18 * 3/29/2002 Regis Feneon Create
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19 *
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20 * (C) Copyright 2002 by TI, All Rights Reserved
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21 *
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22 */
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23
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24 #include "rnet_cfg.h"
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25 #ifdef RNET_CFG_REAL_TRANSPORT
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26
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27 #include "rnet_rt_i.h"
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28 #include "rnet_rt_env.h"
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29
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30 /*
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31 * Retrieves the protocol associated to a connection descriptor.
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32 * The protocol is retrieved with the SO_TYPE socket option.
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33 *
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34 * @param desc Connection identifier.
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35 * @return A value of the T_RNET_IPPROTO enumeration.
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36 */
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37
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38 T_RNET_IPPROTO rnet_rt_get_proto (T_RNET_DESC *desc)
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39 {
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40 int err, len, type;
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41
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42 len = sizeof( type);
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43
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44 /* get type of socket */
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45 rvf_lock_mutex( &rnet_rt_env_ctrl_blk_p->mutex);
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46 err = ngSAIOGetOption( (NGsock *) desc, NG_IOCTL_SOCKET, NG_SO_TYPE,
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47 &type, &len);
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48 rvf_unlock_mutex( &rnet_rt_env_ctrl_blk_p->mutex);
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49
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50 if( err == NG_EOK) {
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51 switch( type) {
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52 case NG_SOCK_STREAM:
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53 return( RNET_IPPROTO_TCP);
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54 case NG_SOCK_DGRAM:
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55 return( RNET_IPPROTO_UDP);
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56 default:
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57 break;
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58 }
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59 }
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60
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61 /* should not happen... */
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62 return( RNET_IPPROTO_UNDEFINED);
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63 }
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64
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65 #endif /* ifdef RNET_CFG_REAL_TRANSPORT */
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