#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <fcntl.h>
#include <sys/file.h>
void checkport(char *host);               
#define MAXPORT 1024
#define STARTPORT 1
#define COLOR "\E[32m"
#define WHITE "\E[m"
#define COLORS "\E[33m"
#define RED "\E[31m"
main(int argc, char *argv[])
{
	int sockfd, port;
	struct sockaddr_in sin;
	struct hostent *h;
	struct servent *s;
	int x, y;
	int secport;
	char b[100];
	char buffer[100];
	struct sockaddr_in sins;
	int socks;
if(argc < 2) {
fprintf(stderr, COLORS "             [Scooby's Internet Port Scanner]\n");
fprintf(stderr, WHITE "                  Scooby@bluecat.org    \n\n");
fprintf(stderr, "usage: %s [-help] <hostname> [start-port] [max-port]\n", argv[0]);
exit(1);
}
if(strcmp(argv[1], "-help") == 0) {
printf(COLOR "\n        ____________-=HELP SCREEN=-_____________\n\n");
                                                        
printf(RED "Argument                         Description\n");
printf(WHITE "-----------------------------------------------\n");
                 
printf("Hostname                        The hostname is the address of\n");
printf("                                the computer that you want to \n");
printf("                                scan the ports on. It can be a\n");
printf("                                numerical address (IP) in the \n");
printf("                                form of 127.0.0.1. Or it can be\n");
printf("                                in the form of a hostname, such \n");
printf("                                as samba.berkeley.edu. Port scanning\n");
printf("                                is not illegal but you could get\n");
printf("                                kicked off of your ISP.\n");
printf("\n");     
printf("Start/End Port                  Computers have things called ports.\n");
printf("                                These ports could have possible vulnerabilites\n");
printf("                                that can possibly be exploited. So, try to\n");
printf("                                scan as high as you can, I think its 650000 or\n");
printf("                                something. By default, the ports are 1 to 1024\n");
printf("\n");
printf("Help                            This help screen\n");
printf("\n");
exit(0);
}
if((h = gethostbyname(argv[1])) == NULL) {
herror(argv[1]);
exit(1);
}
if(argc > 2)
x = atoi(argv[2]);
else
x = STARTPORT;
if(argc > 3)
y = atoi(argv[3]);
else
y = MAXPORT;
printf(COLOR "Scanning %s:\n\n", argv[1]);
printf(WHITE "Scanning...\n");
sin.sin_family = AF_INET;
sin.sin_addr = *((struct in_addr *)h->h_addr);
printf(COLORS "Port			Protocol		  Service\n");                
printf(WHITE "------------------------------------------------------------\n");              
for(port = x; port <= y; port++) {                   
sockfd = socket(AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons(port);
s = getservbyport(htons(port), "tcp");
                                            
if(connect(sockfd, (struct sockaddr *)&sin, sizeof(sin)) == 0)
                 
                                
            
printf("%i			%s  			    %s\n", port, (s == NULL) ? "NULL" : s->s_proto, (s == NULL) ? "UNKNOWN" : s->s_name);                                                       
if(port == 7000 || port == 31337 || port == 30464 || port == 12345) {                                                                                                     
printf(COLOR "\t*** Port: %d is most likeley a Trojan Horse ***", port);     
printf(WHITE ".\n");
 
}             
close(sockfd);
}
                
close(sockfd);
printf("-------------------------------------------------------------\n");                 
checkport(argv[1]);             
close(sockfd);                             
 
return 0;
}
void checkport(char *host) {                      
char buffers[100];
char bufsalot[100];
int portsalot;
int sock;
struct sockaddr_in newsin;
struct hostent *hostent;
                        
if((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
perror("socket failed");
exit(1);
}

if((hostent = gethostbyname(host)) == NULL) {
herror(host);
exit(1);
}

printf("Mai doresti informatii? [Y/N] ");
scanf("%s", &buffers);
if(strstr(buffers, "y")) {
printf("Ce port? ");
scanf("%d", &portsalot);


newsin.sin_family = AF_INET;
newsin.sin_addr = *((struct in_addr *)hostent->h_addr);
newsin.sin_port = htons(portsalot);

if(connect(sock, (struct sockaddr *)&newsin, sizeof(newsin)) == 0) {
while(read(sock, bufsalot, sizeof(bufsalot)) > 0) {
printf(COLOR "%s\n", bufsalot);      
printf(WHITE "[Created by Scooby aka al1n and #BlueCat]\n");
exit(0);
}
exit(0);
} else {
printf("Conexiune esuata.\n");
exit(0);
}
}
}