File: utilities.cpp

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/************************************************************************
 ************************************************************************
 FAUST compiler
 Copyright (C) 2003-2013 GRAME, Centre National de Creation Musicale
 ---------------------------------------------------------------------
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 ************************************************************************
 ************************************************************************/

#include "utilities.h"

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
#include <fstream>

//Verify if the word is a number
bool isInt(const char* word)
{
    bool returning = true;
    for (size_t i = 0; i < strlen(word); i++){
        if (!isdigit(word[i])){
            returning = false;
            break;
        }
    }
    return returning;
}

long lopt(const char* argv[], const char* name, long def)
{
    for (int i = 0; argv[i]; i++) if (!strcmp(argv[i], name)) return atoi(argv[i+1]);
    return def;
}

const char* loptions(const char* argv[], const char* name, const char* def)
{
    for (int i = 0; argv[i]; i++) if (!strcmp(argv[i], name)) return argv[i+1];
    return def;
}

const char* loptions(int argc, const char* argv[], const char* name, const char* def)
{
    for (int i = 0; i < argc; i++) if (!strcmp(argv[i], name)) return argv[i+1];
    return def;
}

bool isopt(const char* argv[], const char* name)
{
    for (int i = 0; argv[i]; i++) if (!strcmp(argv[i], name)) return true;
    return false;
}

bool isopt(int argc, const char* argv[], const char* name)
{
    for (int i = 0; i < argc; i++) if (!strcmp(argv[i], name)) return true;
    return false;
}

int lopt_spe(int i, const char* argv[], const char* name, char* path)
{
    if (!strcmp(argv[i], name)){
        strcpy(path, argv[i+1]);
        if (argv[i+2] && !strcmp(argv[i+2], "--n")) {
            return atoi(argv[i+3]);
        } else {
            return 1;
        }
    }
    return 0;
}

string nameWithoutSpaces(const string& name)
{
    string newname = name;
    while (newname.find(' ') != string::npos) {
        newname.replace(newname.find(' '), 1, "_");
    }
    return newname;
}

void printOptions(int argc, const char* argv[])
{
    for (int i = 0; i < argc; i++) {
        printf("argv[%i] = %s\n", i, argv[i]);
    }
}

//------------------------REGISTRATION TO DISCOVERY SYSTEM
#include <stdio.h>
#include <sys/types.h>
#include <ifaddrs.h>
#include <netinet/in.h>
#include <string.h>
#include <arpa/inet.h>
#include <netdb.h>

string searchIP()
{
    // Works also on OSX...
    
    //#ifdef __linux__
    struct ifaddrs * ifAddrStruct = NULL;
    struct ifaddrs * ifa = NULL;
    void * tmpAddrPtr = NULL;
    string res = "127.0.0.1";
    
    getifaddrs(&ifAddrStruct);
    
    for (ifa = ifAddrStruct; ifa != NULL; ifa = ifa->ifa_next) {
        if (ifa ->ifa_addr->sa_family == AF_INET) { // check it is IP4
            // is a valid IP4 Address
            tmpAddrPtr = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr;
            char addressBuffer[INET_ADDRSTRLEN];
            inet_ntop(AF_INET, tmpAddrPtr, addressBuffer, INET_ADDRSTRLEN);
            printf("%s IP Address %s\n", ifa->ifa_name, addressBuffer);
            if (strcmp(addressBuffer, "127.0.0.1") != 0) {
                res = addressBuffer;
                break;
            }
        }
    }
    if (ifAddrStruct != NULL) freeifaddrs(ifAddrStruct);
    return res;
    /*
     #else
     char host_name[256];
     gethostname(host_name, sizeof(host_name));
     struct hostent* host = gethostbyname(host_name);
     string res = "127.0.0.1";
     
     if (host) {
         for (int i=0; host->h_addr_list[i] != 0; i++) {
            struct in_addr addr;
            memcpy(&addr, host->h_addr_list[i], sizeof(struct in_addr));
            if (strcmp(inet_ntoa(addr), "127.0.0.1") != 0) {
                 res = inet_ntoa(addr);
                 break;
            }
         }
     }
     return res;
     #endif
    */
}