builtin.c

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "common.h"

int check_builtin(char **arg, size_t size) {
    if (strcmp(arg[0], "cd") == 0 && size >= 2) {
        chdir(arg[1]);
        free_pointer_to_pointers(arg, size);
        return SUCESS;
    }
    if (strcmp(arg[0], "exit") == 0) {
        free_pointer_to_pointers(arg, size);
        exit(EXIT_SUCCESS);
    }
    if (strcmp(arg[0], "help") == 0) {
        help();
        free_pointer_to_pointers(arg, size);
        return SUCESS;
    }
    if (strcmp(arg[0], "jobs") == 0) {
        help();
        free_pointer_to_pointers(arg, size);
        return SUCESS;
    }
    if (strcmp(arg[0], "bg") == 0) {
        help();
        free_pointer_to_pointers(arg, size);
        return SUCESS;
    }
    if (strcmp(arg[0], "fg") == 0) {
        help();
        free_pointer_to_pointers(arg, size);
        return SUCESS;
    }
    return FAILURE;
}

void help(void) {
    FILE *readme = fopen("README", "r");
    char *read_string = NULL;
    size_t input_lenght;
    if (readme != NULL) {
        while (getline(&read_string, &input_lenght, readme) != FAILURE)
            printf("%s", read_string);
        fclose(readme);
    } else
        printf("Couldn't find README.\n");
    return;
}