Hello, first of all i'm glad to be a member here. Nice to be with you!
I wrote a simple dum port scanner. For practicing purposes. It worked fine under linux, i ported to windows, i linked it to winsock libraries. I keep getting errors, such as
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|29|error C3861: 'getaddrinfo': identifier not found|
Anyway here is my code if you want to see it:
#include<iostream>
#include<string>
#include<sstream>
#include"WinSock2.h"
using namespace std;
struct addrinfo hints; //fill your host info - hints is input
struct addrinfo *results; //gets your host info - results is output
char *remoteIP = new char[40]; //holds inserted remote IP
string tempPort; //holds ports temporarly
int startingPort; //stores the starting range of port number
int status; //receives the status of your pc address
int currentPort; //holds current port
//program description
void progDesc()
{
cout<<"This is a simple port scanner, scan range of\n";
cout<<"ports on your local machine...\n"<<endl;
}
//getaddrinfe locates your machine, more specific
//details of your host address is returned to results.
void getAddrIn()
{
status = getaddrinfo(remoteIP, NULL , &hints, &results);
if(status != 0)
{
fprintf(stderr, "getaddrinfo error: %s\n", gai_strerror(status));
exit(1);
}
}
//Run the program
int main()
{
int endingPort; //stores the ending rage of port number
WORD wVersionRequested;
WSADATA wsaData;
int err;
/* Use the MAKEWORD(lowbyte, highbyte) macro declared in Windef.h */
wVersionRequested = MAKEWORD(2, 2);
err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0) {
/* Tell the user that we could not find a usable */
/* Winsock DLL. */
printf("WSAStartup failed with error: %d\n", err);
return 1;
}
system("clear");
//tell user what program does
progDesc();
//set size of hints to zero
memset(&hints, 0, sizeof hints);
//fill some of your host address info
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
//ask for remote IP
cout<<"Please enter your target IP: ";
cin>>remoteIP;
getAddrIn();
//ask port range from user
cout<<"Enter Starting Port: ";
cin>>startingPort;
cout<<"Enter Ending Port: ";
cin>>endingPort;
cout<<endl;
cout<<"Start Checking: "<<endl;
//check the status
while(startingPort <= endingPort)
{
//call getaddrinfo()
getAddrIn();
//create a socket.
int socketfd;
socketfd = socket(results->ai_family, results->ai_socktype, results->ai_protocol);
if(socketfd == -1 )
{
cout<<"Error: failed to create a socket.\n";
return 2;
}
struct sockaddr_in *specifyPort = (struct sockaddr_in *)results->ai_addr;
specifyPort->sin_port = htons(startingPort);
int connectStatus;
connectStatus = connect(socketfd, results->ai_addr, results->ai_addrlen);
if(connectStatus == -1 )
{
if(errno == ECONNREFUSED)
cout<<"Port "<<startingPort<<" is Closed or Blocked.\n";
//Alternatively, you can do:
//cout << "connect failed; reason = " << strerror(errno) <<endl;
}else{
cout<<"Port "<<startingPort<<" is OPEN.\n";
}
closesocket(socketfd);
//move to the next port in the specified range
startingPort++;
}
//deallocate memory
delete[] remoteIP;
//free linkedlist of struct addrinfo *results
freeaddrinfo(results);
WSACleanup();
return 0;
}
Errors:
C:\Program Files\Microsoft Visual Studio 9.0\VC\include\xlocale|342|warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify /EHsc|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|7|error C2079: 'hints' uses undefined struct 'addrinfo'|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|29|error C3861: 'getaddrinfo': identifier not found|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|33|error C3861: 'gai_strerror': identifier not found|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|53|error C2228: left of '.ai_family' must have class/struct/union|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|54|error C2228: left of '.ai_socktype' must have class/struct/union|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|82|error C2027: use of undefined type 'addrinfo'|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|82|error C2227: left of '->ai_family' must point to class/struct/union/generic type|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|82|error C2027: use of undefined type 'addrinfo'|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|82|error C2227: left of '->ai_socktype' must point to class/struct/union/generic type|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|82|error C2027: use of undefined type 'addrinfo'|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|82|error C2227: left of '->ai_protocol' must point to class/struct/union/generic type|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|90|error C2027: use of undefined type 'addrinfo'|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|90|error C2227: left of '->ai_addr' must point to class/struct/union/generic type|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|95|error C2027: use of undefined type 'addrinfo'|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|95|error C2227: left of '->ai_addr' must point to class/struct/union/generic type|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|95|error C2027: use of undefined type 'addrinfo'|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|95|error C2227: left of '->ai_addrlen' must point to class/struct/union/generic type|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|99|error C2065: 'ECONNREFUSED' : undeclared identifier|
C:\Documents and Settings\Fahmi\Desktop\test\main.cpp|119|error C3861: 'freeaddrinfo': identifier not found|
||=== Build finished: 19 errors, 1 warnings ===|
PLZ HELP.... I ALREADY DID ALL I CAN. I'm about to give up....
