char getFileMode(char charSetter) {
    char fileType = 0; /*var to hold the value to be returned*/ 
    charSetter=0;
    fileType = charSetter;    
    return fileType; /*end function */
}

void dirTreeWalker(char fileType, char *dirName, char charSetter);

1.1 open dir
   1.2  if dp == NULL print ERROR
 2.1 else while dp != NULL 
    2.2 if  not ".." and  not "."  lstat
    2.3 if  lstat(path, &info) < 0) print error
    2.4 if ((S_ISDIR(info.st_mode))&&(fileType == 'd')) print path
         else if ((S_ISREG(info.st_mode))&&( fileType == 'f')) print path
         else if ((S_ISLNK(info.st_mode))&&(fileType == 'l')) print path
    2.5 else print all thre options
    2.6 closedir

    /*this set of vars for getopt*/
    int c;
    char *options = "t::dfl";
    extern char *optarg;
    extern int optind, optopt, opterr;
    char dir = 'd', 
        file = 'f', 
        slink = 'l', 
        charSetter = 0;

    /*this set of vars for the traversal and the test*/
    char fileType = 0;
    char *dirName = argv[argc-1];
    /* char *fileName =  */

while ((c = getopt(argc, argv, options)) != -1) {
    switch (c) {
        case 't':
            optarg = options;
            printf("Type is set: %c\n", charSetter);
            printf("option: %c\n",c);
            break;
            
        case 'd':
            printf("d is set\n");
            charSetter = dir;
            break;

        case 'f':
            printf("f is set\n");
            charSetter = file;
            printf("\ntype of file is f %c\n", fileType); /*test to be removed*/
            break;

        case 'l':
            printf("l is set\n");
            charSetter = slink;
            printf("\ntype of file is l %c\n", fileType); /*test to be removed*/
            break;

        case ':':
            printf("-%c without type\n", optopt);
            break;

        case '?':
            printf("unknown arg %c\n", optopt);
            fprintf(stderr, "Unrecognized option: -%c\n", optopt);
    }

}
    int i;
    for(i=1;i<argc;i++){
    printf("argv: %s\n",argv[i]);
    }

    for (; optind < argc; optind++) {
     fileType = getFileMode(charSetter);
     dirTreeWalker(fileType, dirName, charSetter);
    }