1 // ANNA - Anna is Not Nothingness Anymore
3 // (c) Copyright 2005-2014 Eduardo Ramos Testillano & Francisco Ruiz Rayo
5 // http://redmine.teslayout.com/projects/anna-suite
7 // Redistribution and use in source and binary forms, with or without
8 // modification, are permitted provided that the following conditions
11 // * Redistributions of source code must retain the above copyright
12 // notice, this list of conditions and the following disclaimer.
13 // * Redistributions in binary form must reproduce the above
14 // copyright notice, this list of conditions and the following disclaimer
15 // in the documentation and/or other materials provided with the
17 // * Neither the name of the copyright holder nor the names of its
18 // contributors may be used to endorse or promote products derived from
19 // this software without specific prior written permission.
21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 // Authors: eduardo.ramos.testillano@gmail.com
34 // cisco.tierra@gmail.com
40 #ifndef MAXHOSTNAMELEN
41 #define MAXHOSTNAMELEN 64
42 #pragma Definiendo MAXHOSTNAMELEN
45 #include <anna/comm/functions.hpp>
46 #include <anna/comm/Application.hpp>
47 #include <anna/comm/Communicator.hpp>
48 #include <anna/comm/Service.hpp>
49 #include <anna/comm/Server.hpp>
50 #include <anna/core/tracing/Logger.hpp>
55 comm::Application& comm::functions::getApp()
56 throw(RuntimeException) {
57 if(comm::Application::st_application == NULL)
58 throw RuntimeException("No Application class has been defined", ANNA_FILE_LOCATION);
60 if(comm::Application::st_application->supportCommunication() == false)
61 throw RuntimeException("Defined Application class has no communications support. Must inherit from anna::comm::Application or superior", ANNA_FILE_LOCATION);
63 return *(static_cast <comm::Application*>(comm::Application::st_application));
66 string comm::functions::getHostName()
67 throw(RuntimeException) {
68 char hostName [MAXHOSTNAMELEN];
70 if(gethostname(hostName, MAXHOSTNAMELEN) != 0)
71 throw RuntimeException("Cannot obtain the hostname", errno, ANNA_FILE_LOCATION);
73 return string(hostName);
79 std::string comm::functions::resolveIP(const char* hostname)
80 throw(RuntimeException) {
84 if((host = gethostbyname(hostname)) == NULL) {
85 string msg("comm::functions::resolveIP | Host to resolve: ");
88 msg += hstrerror(h_errno);
89 throw RuntimeException(msg, ANNA_FILE_LOCATION);
92 if(host->h_addrtype != AF_INET) {
93 string msg("comm::functions::resolveIP | Host to resolve: ");
95 msg += " | Address type unsupported";
96 throw RuntimeException(msg, ANNA_FILE_LOCATION);
100 string msg("comm::functions::resolveIP | Host to resolve: ");
103 if(host->h_name != NULL) { msg += " | Official name: "; msg += host->h_name; }
104 if(host->h_aliases[0] != NULL) {
105 msg += " | Aliases:";
107 for(int i = 0; host->h_aliases[i] != NULL; i ++) { msg += " "; msg += host->h_aliases[i]; }
109 msg += " | Address type: ";
110 msg += functions::asString(host->h_addrtype);
111 msg += " | Address length: ";
112 msg += functions::asString(host->h_length);
114 if(host->h_addr_list[0] != NULL) {
117 for(int i = 0; host->h_addr_list[i] != NULL; i ++) { msg += " "; msg += inet_ntoa(*reinterpret_cast <in_addr*>(host->h_addr_list[i])); }
119 Logger::debug(msg, ANNA_FILE_LOCATION);
122 if(host->h_addr_list[0] == NULL) {
123 string msg("comm::functions::resolveIP | Host to resolve: ");
125 msg += " | Address not resolved by the system";
126 throw RuntimeException(msg, ANNA_FILE_LOCATION);
130 result = inet_ntoa(*reinterpret_cast <in_addr*>(host->h_addr_list[0])); // inet_ntoa (const in_addr_t& address)