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      1 /*
      2 
      3 Copyright 1996, 1998  The Open Group
      4 
      5 Permission to use, copy, modify, distribute, and sell this software and its
      6 documentation for any purpose is hereby granted without fee, provided that
      7 the above copyright notice appear in all copies and that both that
      8 copyright notice and this permission notice appear in supporting
      9 documentation.
     10 
     11 The above copyright notice and this permission notice shall be included in
     12 all copies or substantial portions of the Software.
     13 
     14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     20 
     21 Except as contained in this notice, the name of The Open Group shall not be
     22 used in advertising or otherwise to promote the sale, use or other dealings
     23 in this Software without prior written authorization from The Open Group.
     24 
     25 */
     26 
     27 
     28 /* Author: Ralph Mor, X Consortium */
     29 
     30 #ifdef HAVE_CONFIG_H
     31 #include <config.h>
     32 #endif
     33 #include <X11/ICE/ICElib.h>
     34 #include "ICElibint.h"
     35 #include <X11/Xtrans/Xtrans.h>
     36 #include <stdio.h>
     37 
     38 
     39 Status
     40 IceListenForWellKnownConnections (
     41 	char		*port,
     42 	int		*countRet,
     43 	IceListenObj	**listenObjsRet,
     44 	int		errorLength,
     45 	char		*errorStringRet
     46 )
     47 {
     48     struct _IceListenObj	*listenObjs;
     49     char			*networkId;
     50     int				transCount, partial, i, j;
     51     Status			status = 1;
     52     XtransConnInfo		*transConns = NULL;
     53 
     54 
     55     if ((_IceTransMakeAllCOTSServerListeners (port, &partial,
     56 	&transCount, &transConns) < 0) || (transCount < 1))
     57     {
     58 	*listenObjsRet = NULL;
     59 	*countRet = 0;
     60 
     61 	if (errorStringRet && errorLength > 0) {
     62             strncpy (errorStringRet,
     63 		"Cannot establish any listening sockets", errorLength);
     64 	    errorStringRet[errorLength - 1] = '\0';
     65 	}
     66 
     67 	free (transConns);
     68 	return (0);
     69     }
     70 
     71     listenObjs = calloc (transCount, sizeof (struct _IceListenObj));
     72     if (listenObjs == NULL)
     73     {
     74 	for (i = 0; i < transCount; i++)
     75 	    _IceTransClose (transConns[i]);
     76 	free (transConns);
     77 
     78 	strncpy (errorStringRet, "Malloc failed", errorLength);
     79 	return (0);
     80     }
     81 
     82     *countRet = 0;
     83 
     84     for (i = 0; i < transCount; i++)
     85     {
     86 	networkId = _IceTransGetMyNetworkId (transConns[i]);
     87 
     88 	if (networkId)
     89 	{
     90 	    listenObjs[*countRet].trans_conn = transConns[i];
     91 	    listenObjs[*countRet].network_id = networkId;
     92 
     93 	    (*countRet)++;
     94 	}
     95     }
     96 
     97     if (*countRet == 0)
     98     {
     99 	*listenObjsRet = NULL;
    100 
    101 	if (errorStringRet && errorLength > 0) {
    102             strncpy (errorStringRet,
    103 		"Cannot establish any listening sockets", errorLength);
    104 	    errorStringRet[errorLength - 1] = '\0';
    105 	}
    106 
    107 	status = 0;
    108     }
    109     else
    110     {
    111 	*listenObjsRet = malloc (*countRet * sizeof (IceListenObj));
    112 
    113 	if (*listenObjsRet == NULL)
    114 	{
    115 	    if (errorStringRet && errorLength > 0) {
    116 		strncpy (errorStringRet, "Malloc failed", errorLength);
    117 		errorStringRet[errorLength - 1] = '\0';
    118 	    }
    119 
    120 	    status = 0;
    121 	}
    122 	else
    123 	{
    124 	    for (i = 0; i < *countRet; i++)
    125 	    {
    126 		(*listenObjsRet)[i] = malloc (sizeof (struct _IceListenObj));
    127 
    128 		if ((*listenObjsRet)[i] == NULL)
    129 		{
    130 		    if (errorStringRet && errorLength > 0) {
    131 		        strncpy (errorStringRet, "Malloc failed", errorLength);
    132 			errorStringRet[errorLength - 1] = '\0';
    133 		    }
    134 
    135 		    for (j = 0; j < i; j++)
    136 			free ((*listenObjsRet)[j]);
    137 
    138 		    free (*listenObjsRet);
    139 		    *listenObjsRet = NULL;
    140 
    141 		    status = 0;
    142 		    break;
    143 		}
    144 		else
    145 		{
    146 		    *((*listenObjsRet)[i]) = listenObjs[i];
    147 		}
    148 	    }
    149 	}
    150     }
    151 
    152     if (status == 1)
    153     {
    154 	if (errorStringRet && errorLength > 0)
    155 	    *errorStringRet = '\0';
    156 
    157 	for (i = 0; i < *countRet; i++)
    158 	{
    159 	    (*listenObjsRet)[i]->host_based_auth_proc = NULL;
    160 	}
    161     }
    162     else
    163     {
    164 	for (i = 0; i < transCount; i++)
    165 	    _IceTransClose (transConns[i]);
    166     }
    167 
    168     free (listenObjs);
    169     free (transConns);
    170 
    171     return (status);
    172 }
    173