How to make a menu that repeats in C

Question

I'm making a file compressor program in C, and I'm creating a friendly menu that appears in the beginning of the program.

That's the simplified code:

Compress.c

int main()
{

    char directory[100];
    char option;
    bool exit = false;

    do
    {

        printf("|------------------------------------|\n");
        printf("|             Welcome!               |\n");
        printf("|                                    |\n");
        printf("|Select one of the following options:|\n");
        printf("|    1 - Compress a file             |\n");
        printf("|    2 - Decompress a file           |\n");
        printf("|    3 - Exit                        |\n");
        printf("|------------------------------------|\n");

        scanf(" %c", &option);

        switch(option)
        {
            case '1':
                printf("Enter the FULL directory or drag HERE the file you want to COMPRESS: \n");
                scanf(" %s", directory);

                /* COMPRESS FILE */

                break;

            case '2':
                printf("Enter the FULL directory or drag HERE the file you want to UNCOMPRESS: \n");
                scanf(" %s", directory);

                /* DECOMPRESS FILE */

                break;

            case '3':
                exit = true;
                break;

            default:
                printf("Invalid option!\n\n");
                break;
        }
    }while(exit == false);

    return 0;
}

After typing '1', for example, and typing a CORRECT directory, the program prints 10 times the menu and returns 0. But when I type an INVALID or NONEXISTENT directory, it works, because it prints only 1 time the menu and waits for user types the option again!

Why is it doing that?

Answer 1

Changing scanf(" %s") to this, did the trick:

getchar();
gets(directory);

//AFTER READING THAT DIRECTORY, WE NEED TO CHECK IF IT HAS QUOTES ON IT:
if(directory[0] == '\"')  //IF IT HAS, ENTER HERE
{
    /* REMOVE ALL QUOTES IN THE DIRECTORY */
}