pish/src/Pish.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
#include "Integrated.h"
#include "Pish.h"

// Prints a prompt and then reads a command from the terminal
char* getInput(void)
{
    return "echo hello world";
}

// Executes a command to the system
void exec(char* command)
{
    system(command);
}

// Main function for Pish program
void Pish(void)
{
    char* command;
    int retval;
    while (1)
    {
        command = getInput();
        IntegratedCheck(command);
        retval = fork();
        // Child
        if (retval == 0)
        {
            // This is the child process
            // Setup the child's process environment here
            // E.g., where is standard I/O, how to handle signals?
            exec(command);
            // exec does not return if it succeeds
            printf("ERROR: Could not execute %s\n", command);
            exit(1);
        }
        // Parent
        else
        {
            // This is the parent process; Wait for the child to finish
            int pid = retval;
            wait(pid);
        }
        // TODO: Remove break when while loop doesn't break program
        break;
    }
}