cd.c

#include "cd.h"
#include "prompt.h"
#include "headers.h"
#include "cwd.h"

void cd(char **path, char * prev, bool prevset)
{
    if(path[1] == NULL)
    {
        printf("No argument for cd provided!\n");
    }

    else if(path[2] != NULL)
    {
        printf("cd: too many arguments!\n");
    }

    else if(!strcmp(path[1], "~"))
    {
        if(chdir(HOME) != 0)
        {
            perror("Error");
        }
    }

    else if(!strcmp(path[1], "-"))
    {
        if(prevset)
        {
            if(chdir(prev) != 0)
            {
                perror("Error");
            }

            pwd();
        }

        else
        {
            printf("Error: No previous directory set yet\n");
        }
        
    }

    else
    {
        if(chdir(path[1]) != 0)
        {
            perror("Error");
        }
    } 
}