currently i am creating a project with LAN based connection. Please show me some sample codes
for the winsock control in Visual Basic 6

#include <iostream.h>
        #include <winsock2.h>
      #include <windows.h>
      //#include <string>
      #include <stdio.h>
      #include <string.h>

      //using namespace std;




      #define MAX_LENGTH 1024
      #pragma argsused

char *fgets(char *line, int maxline, FILE *fp);
int fputs(char *line, FILE *fp);
int getline(char *line, int max);

      void main()
      {
          int s_len, r_len;
          int skt_Smtp;
          int success;
          struct sockaddr_in st_Sockaddr;
          char recv_Buf[MAX_LENGTH];
          char send_Buf[MAX_LENGTH];

          char abuf[MAX_LENGTH] = "";;
          char bbuf[MAX_LENGTH] = "";;
          //using namespace std;
          //string my_string;


          char text[1024] = "";



          //Initialize Sockets
          WSADATA wsa;
          WSAStartup(MAKEWORD(2, 0), &wsa);


          skt_Smtp = socket(AF_INET,SOCK_STREAM,0);
          if (skt_Smtp < 0)
          {
              cout<< "Error Creating Socket"<<endl;
              return;
          }
         else
         {
              st_Sockaddr.sin_family = AF_INET;
              st_Sockaddr.sin_port = htons(25);

             //Get the IP address and initialize the structure
             st_Sockaddr.sin_addr.s_addr = inet_addr("127.0.0.1");

             success = connect(skt_Smtp,(struct sockaddr *) &st_Sockaddr,sizeof(st_Sockaddr));

             r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
             recv_Buf[r_len] = '\0';

             cout<< recv_Buf<<endl;

             //Say Hello to the domain
             strcpy(send_Buf,"HELO [email]jameshernon123@oxymoron.homeip.net[/email]\r\n");

             s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

             r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
             recv_Buf[r_len] = '\0';

             cout<< recv_Buf<<endl;

             //Send from address

             strcpy(send_Buf ,  "MAIL FROM: <jahernon@gmail.com>\r\n");


             s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

             r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
             recv_Buf[r_len] = '\0';

             //cout<< recv_Buf<<endl;

             //Send RCPT address
             //strcpy(send_Buf,"RCPT TO: <jameshernon231@btinternet.com>\r\n");
             cout << "RCPT TO:";
             //strcpy(text,"RCPT TO:");
             strcat(bbuf,"RCPT TO:<");

             getline(text,255);

             text[strlen(text)-1] = 0; /* 'P' is not in `p` (and it isn't in `mystr` either) */

             strcat(bbuf, text );

             //cout << text;

             strcat(bbuf,">");


             strcpy(send_Buf,bbuf);

             s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

             strcpy(send_Buf,"\r\n");

             s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);


             cout<< send_Buf<<endl;

             r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);

             recv_Buf[r_len] = '\0';

             //cout<< recv_Buf<<endl;

             // Send DATA
             strcpy(send_Buf,"DATA\r\n");

             s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

             r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
             recv_Buf[r_len] = '\0';

             //cout<< recv_Buf<<endl;


             // Send DATA

            //strcpy(send_Buf,"Subject:new subject\r\n\r\n\r\n");
            cout << "Enter Subject:";
            strcpy(text,"Subject:");
            getline(&text[8],255);
            int t;
            //t=sizeof(text);
            t = strlen(text);
            strcpy(&text[t],"\r\n\r\n\r\n");

          //** printf("\nSubject:%s",text);

            strcpy(send_Buf,text);

            s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

            strcpy(send_Buf,"\r\n\r\n");

            s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

            //Send body
            cout << "Enter Message:";
             getline(text,1024);
            int q;
            q=sizeof(text);
            strcpy(&text[q],"\r\n.\r\n");

          //** printf("\nText:%s",text);

           strcpy(send_Buf, text );

            s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

                strcpy(send_Buf,"\r\n.\r\n");

            s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

            r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
            recv_Buf[r_len] = '\0';

            cout<< recv_Buf<<endl;

            //Send QUIT
            strcpy(send_Buf,"QUIT.\n");

            s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

            r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
            recv_Buf[r_len] = '\0';

            cout<< recv_Buf<<endl;

            closesocket(skt_Smtp);

         }

         WSACleanup();

     }



/* fgets:  get at most n chars from iop */
   char *fgets(char *s, int n, FILE *iop)
   {
       register int c;
       register char *cs;

       cs = s;
       while (--n > 0 && (c = getc(iop)) != EOF)
           if ((*cs++ = c) == '\n')
               break;
       *cs = '\0';
       return (c == EOF && cs == s) ? NULL : s;
   }

   /* fputs:  put string s on file iop */
   int fputs(char *s, FILE *iop)
   {
       int c;

       while (c = *s++)
           putc(c, iop);
       return ferror(iop) ? EOF : 0;
   }
 int getline(char *line, int max)
   {
       if (fgets(line, max, stdin) == NULL)
           return 0;
       else
           return strlen(line);
   }

Edited 3 Years Ago by Nick Evan: Fixed formatting

forgot to embed the code example in the code tags.

#include <iostream.h>
#include <winsock2.h>
#include <windows.h>
//#include <string>
#include <stdio.h>
#include <string.h>

//using namespace std;




#define MAX_LENGTH 1024
#pragma argsused

char *fgets(char *line, int maxline, FILE *fp);
int fputs(char *line, FILE *fp);
int getline(char *line, int max);

void main()
{
int s_len, r_len;
int skt_Smtp;
int success;
struct sockaddr_in st_Sockaddr;
char recv_Buf[MAX_LENGTH];
char send_Buf[MAX_LENGTH];

char abuf[MAX_LENGTH] = "";;
char bbuf[MAX_LENGTH] = "";;
//using namespace std;
//string my_string;


char text[1024] = "";



//Initialize Sockets
WSADATA wsa;
WSAStartup(MAKEWORD(2, 0), &wsa);


skt_Smtp = socket(AF_INET,SOCK_STREAM,0);
if (skt_Smtp < 0)
{
cout<< "Error Creating Socket"<<endl;
return;
}
else
{
st_Sockaddr.sin_family = AF_INET;
st_Sockaddr.sin_port = htons(25);

//Get the IP address and initialize the structure
st_Sockaddr.sin_addr.s_addr = inet_addr("127.0.0.1");

success = connect(skt_Smtp,(struct sockaddr *) &st_Sockaddr,sizeof(st_Sockaddr));

r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
recv_Buf[r_len] = '\0';

cout<< recv_Buf<<endl;

//Say Hello to the domain
strcpy(send_Buf,"HELO someone@someserver.net\r\n");

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
recv_Buf[r_len] = '\0';

cout<< recv_Buf<<endl;

//Send from address

strcpy(send_Buf , "MAIL FROM: <someone@gmail.com>\r\n");


s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
recv_Buf[r_len] = '\0';

//cout<< recv_Buf<<endl;

//Send RCPT address
//strcpy(send_Buf,"RCPT TO: <someone@somewhere.com>\r\n");
cout << "RCPT TO:";
//strcpy(text,"RCPT TO:");
strcat(bbuf,"RCPT TO:<");

getline(text,255);

text[strlen(text)-1] = 0; /* 'P' is not in `p` (and it isn't in `mystr` either) */

strcat(bbuf, text );

//cout << text;

strcat(bbuf,">");


strcpy(send_Buf,bbuf);

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

strcpy(send_Buf,"\r\n");

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);


cout<< send_Buf<<endl;

r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);

recv_Buf[r_len] = '\0';

//cout<< recv_Buf<<endl;

// Send DATA
strcpy(send_Buf,"DATA\r\n");

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
recv_Buf[r_len] = '\0';

//cout<< recv_Buf<<endl;


// Send DATA

//strcpy(send_Buf,"Subject:new subject\r\n\r\n\r\n");
cout << "Enter Subject:";
strcpy(text,"Subject:");
getline(&text[8],255);
int t;
//t=sizeof(text);
t = strlen(text);
strcpy(&text[t],"\r\n\r\n\r\n");

//** printf("\nSubject:%s",text);

strcpy(send_Buf,text);

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

strcpy(send_Buf,"\r\n\r\n");

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

//Send body
cout << "Enter Message:";
getline(text,1024);
int q;
q=sizeof(text);
strcpy(&text[q],"\r\n.\r\n");

//** printf("\nText:%s",text);

strcpy(send_Buf, text );

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

strcpy(send_Buf,"\r\n.\r\n");

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
recv_Buf[r_len] = '\0';

cout<< recv_Buf<<endl;

//Send QUIT
strcpy(send_Buf,"QUIT.\n");

s_len = send(skt_Smtp,send_Buf,strlen(send_Buf),0);

r_len = recv(skt_Smtp,recv_Buf,MAX_LENGTH,0);
recv_Buf[r_len] = '\0';

cout<< recv_Buf<<endl;

closesocket(skt_Smtp);

}

WSACleanup();

}



/* fgets: get at most n chars from iop */
char *fgets(char *s, int n, FILE *iop)
{
register int c;
register char *cs;

cs = s;
while (--n > 0 && (c = getc(iop)) != EOF)
if ((*cs++ = c) == '\n')
break;
*cs = '\0';
return (c == EOF && cs == s) ? NULL : s;
}

/* fputs: put string s on file iop */
int fputs(char *s, FILE *iop)
{
int c;

while (c = *s++)
putc(c, iop);
return ferror(iop) ? EOF : 0;
}
int getline(char *line, int max)
{
if (fgets(line, max, stdin) == NULL)
return 0;
else
return strlen(line);
}

What type of program you are trying to develop? Are you trying to develop a simple chat program using Winsock? or trying to developed other online programs.
thanks

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