2 way ipc

[mmnoname]

Hi, I need to have one program Called Referee execute 2 other programs A and B that accept input with stdin and output to stdout. I need to be able to communicate with them and then close the pipe and the programs and execute a new set of programs in a cycle. Here is what I have right now. I am guessing it is wrong

pipe(p1Input); //input 
pipe for A  pipe(p1Output); //output pipe for A  
if((pid = fork()) == - 1){ //fork referee  	
//Error  	
    perror("There was an error creating a new process");  	
    exit(0);  }
else if(pid == 0){  	
//Child  	
    dup2(p1Input[0], fileno(stdin));  //set the input to be stdin
    close(p1Input[1]);//close the other end of the pipe
    dup2(p1Output[1], fileno(stdout));//set the output to be out
    close(p1Output[0]);//close the other end of the pipe
    setvbuf(stdout,(char*)NULL,_IONBF,0);	//not too sure if i ned hat
    execl(argv[pOne], NULL);//execute A
}else{  	//Parent
    dup2(p1Input[1], fileno(stdout)); //set the output to be stdout
    close(p1Input[0]);	//close the other end of the pipe
    dup2(p1Output[0], fileno(stdin)); //set the input to be stdin
    close(p1Output[1]);	//close the other end of the pipe
    setvbuf(stdout,(char*)NULL,_IONBF,0); //not too sure if i need that
     printf("INPUT\n");
     //Now im not too sure how i would read what A is sending me.
     wait(&status);
}

Sorry messed up had to reedit

Thank for your help

[Salem]

I'm guessing you need to press the edit button to make your code occupy more than ONE line

[mmnoname]

I fixed the code. Sorry about that. it should be alot more clear now. I hope someone can help me