#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <conio.h>
 
int p_count = 1;
int flag = 0;
char i_c = '0';
char stringCom[12] = "mpc play 1";
char stringComStop[10] = "mpc stop";
int stringDat[9];
int i = 0;
int res = 0;
char c;

int decode (int res)
    {
        flag = 1;
        switch (res)
        {
        case 114 : {//r net_radio
          p_count = 1;
                  }
                  break;
    case 115 : {//s stop
                  system (stringComStop);
          flag = 0;
                  }
                  break;
        case 49 : {//1
                  p_count = 1;
                  }
                  break;
    case 50 :  {//2
          p_count = 2;
          }
          break;
        case 51 : {//3
           p_count = 3;
          }
                  break;
        case 52 : {//4
                  p_count = 4;
                  }
                  break;
        case 53 : {//5
                  p_count = 5;
                  }
                  break;
        case 54 : {//6
                  p_count = 6;
                  }
                  break;
    case 55 : {//7
                  p_count = 7;
                  }
                  break;
     case 56 : {//8
                  p_count = 8;
                  }
                  break;
    case 57 : {//9
                  p_count = 9;
                  }
                  break;
     case 48 : {//0
                  p_count = 0;
                  }
                  break;
    case 104 : p_count ++;//h kanal op
                  break;
        case 118 : p_count --;//v kanal ned
                  break;
        default:
                  {
                  flag = 0;
          return 0;
                  }
                }
                if (flag == 1)
                {
                if (p_count > 9)
                  {
                  p_count = 1;
                  }
                if (p_count < 1)
                  {
                  p_count = 9;
                  }
                i_c = p_count + 48;//int to char max 9
                stringCom[9] = i_c;
                system (stringCom);
                }
        return 0;
}

int main (void)
{
  while (1)
    {
    c = getch();
    if (c == 46)
    break;
    res = (int) (c);
    decode (res);
    sleep(.5);
    }
  return 0 ;
}

Compile med: g++ -o net_radio net_radio.c

Bemærk: dette er ekspermentel software der er ingen garanti for brugbarhed, det kan derimod sandsynligvis være skadeligt, kun til brug i Danmark.