Recursive file and directory removal in C

rm_r.c

int rm_r(const char* e_path)
{
    DIR *dir = opendir(e_path);
    struct dirent *ent;
    
    if (dir == NULL)
        /* error while opening the directory */
        return -1;
    
    /* DA MAGICKS */
    while ((ent = readdir(dir)) != NULL)
    {
        if (strcmp(ent->d_name,".") != 0 && strcmp(ent->d_name,"..") != 0)
        {
            char temp_path[PATH_MAX];
            strcpy(temp_path, e_path);
            strcat(temp_path, "/");
            strcat(temp_path, ent->d_name);
            
            /* let's test if that entry is a file or a directory */
            DIR *test_dir = opendir(temp_path);
            if(test_dir)
                /* it's a directory, let's remove all of it's content */
                if (rm_r(temp_path) != 0) /* that's a recursive call */
                    return -1;
            if (remove(temp_path) != 0)
                return -1;
        }
    }
    
    if (closedir(dir) != 0)
        return -1;
    return 0;
}