Create Process/Redirect Output

CreateProcess-RedictOutput.c

pid_t create_process(char *cmd, int file_input, int file_output)
{
    pid_t pid = -1;

    char **array_args = NULL;
    pid = fork();

    if(pid == 0)
    {
        //child
        quick_dup(file_input, file_output);
        execvp(cmd, cmd);
        //if execvp fails output error and kill child.
        fprintf(stderr, COLOR_RED "%s: Bad command or filename?\n" COLOR_RESET, strtok(cmd, " "));
        exit(EXIT_FAILURE);
    }
  	// Parent
    return pid;
}

void quick_dup(int file_input, int file_output)
{
    //avoid closing 0 for first input
    if(file_input != STDIN_FILENO)
    {
        dup2(file_input, STDIN_FILENO);
        close(file_input);
    }
    //avoid closing output for last output
    if(file_output != STDOUT_FILENO)
    {
        dup2(file_output, STDOUT_FILENO);
        close(file_output);
    }
}