TCP Protocols
Posted: Jul 9, 2007 @ 1:56pmHi ,
I needed some help with TCP protocols... I will paste some code here and I wanted to know if there is EDGE version for the code. I am using EDGE IDE for builiding and I want the code to run for Series 60(3rd edition). The code is in C and I wanted the manipulations that are to be made so that it can be used in EDGE IDE. Also I wanted to know how to send requests in TCP. Request sending is not there in the tutorial(It was there only for HTTP-- is it the same way?).
This is the code:
#include <stdio.h>
#include <winsock.h>
#include <stdlib.h>
#include "helper.h" /* Our own helper functions */
/* Global constants */
#define MAX_LINE (1000)
int ParseCmdLine(int argc, char *argv[], char **szAddress, char **szPort);
/* main() */
int main(int argc, char *argv[])
{
SOCKET conn_s; /* connection socket */
short int port; /* port number */
struct sockaddr_in servaddr; /* socket address structure */
char buffer[MAX_LINE]; /* character buffer */
char *szAddress; /* Holds remote IP address */
char *szPort; /* Holds remote port */
char *endptr; /* for strtol() */
struct hostent *he;
u_long nRemoteAddr;
WSADATA wsaData;
he=NULL;
/* Get command line arguments */
ParseCmdLine(argc, argv, &szAddress, &szPort);
/* Set the remote port */
port = strtol(szPort, &endptr, 0);
if ( *endptr )
{
printf("client: porta non riconosciuta.\n");
exit(EXIT_FAILURE);
}
if (WSAStartup(MAKEWORD(1,1), &wsaData) != 0)
{
printf("errore in WSAStartup()\n");
exit(EXIT_FAILURE);
}
/* Create the listening socket */
if ( (conn_s = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
{
fprintf(stderr, "client: errore durante la creazione della socket.\n");
exit(EXIT_FAILURE);
}
/* Set all bytes in socket address structure to
zero, and fill in the relevant data members */
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(port);
/* Set the remote IP address */
nRemoteAddr = inet_addr(szAddress);
if (nRemoteAddr == INADDR_NONE)
{
printf("client: indirizzo IP non valido.\nclient: risoluzione nome...");
if ( (he=gethostbyname(szAddress)) == 0)
{
printf("fallita.\n");
exit(EXIT_FAILURE);
}
printf("riuscita.\n\n");
nRemoteAddr = *((u_long *)he->h_addr_list[0]);
}
servaddr.sin_addr.s_addr = nRemoteAddr;
/* connect() to the remote echo server */
if ( connect(conn_s, (struct sockaddr *) &servaddr, sizeof(servaddr) ) == SOCKET_ERROR )
{
printf("client: errore durante la connect.\n");
exit(EXIT_FAILURE);
}
/* Get string to echo from user */
printf("Inserire la stringa da spedire: ");
fgets(buffer, MAX_LINE, stdin);
/* Send string to echo server, and retrieve response */
Writeline(conn_s, buffer, strlen(buffer));
memset(buffer, 0, sizeof(char)*(strlen(buffer)+1));
Readline(conn_s, buffer, MAX_LINE-1);
/* Output echoed string */
printf("Risposta del server: %s\n", buffer);
WSACleanup();
return EXIT_SUCCESS;
}
int ParseCmdLine(int argc, char *argv[], char **szAddress, char **szPort)
{
int n = 1;
while ( n < argc )
{
if ( !strncmp(argv[n], "-a", 2) || !strncmp(argv[n], "-A", 2) )
{
*szAddress = argv[++n];
}
else
if ( !strncmp(argv[n], "-p", 2) || !strncmp(argv[n], "-P", 2) )
{
*szPort = argv[++n];
}
else
if ( !strncmp(argv[n], "-h", 2) || !strncmp(argv[n], "-H", 2) )
{
printf("Sintassi:\n\n");
printf(" client -a (indirizzo server) -p (porta del server) [-h].\n\n");
exit(EXIT_SUCCESS);
}
++n;
}
if (argc==1)
{
printf("Sintassi:\n\n");
printf(" client -a (indirizzo server) -p (porta del server) [-h].\n\n");
exit(EXIT_SUCCESS);
}
return 0;
}
Hoping to get a reply soon.
Thank you,
coolkc
I needed some help with TCP protocols... I will paste some code here and I wanted to know if there is EDGE version for the code. I am using EDGE IDE for builiding and I want the code to run for Series 60(3rd edition). The code is in C and I wanted the manipulations that are to be made so that it can be used in EDGE IDE. Also I wanted to know how to send requests in TCP. Request sending is not there in the tutorial(It was there only for HTTP-- is it the same way?).
This is the code:
#include <stdio.h>
#include <winsock.h>
#include <stdlib.h>
#include "helper.h" /* Our own helper functions */
/* Global constants */
#define MAX_LINE (1000)
int ParseCmdLine(int argc, char *argv[], char **szAddress, char **szPort);
/* main() */
int main(int argc, char *argv[])
{
SOCKET conn_s; /* connection socket */
short int port; /* port number */
struct sockaddr_in servaddr; /* socket address structure */
char buffer[MAX_LINE]; /* character buffer */
char *szAddress; /* Holds remote IP address */
char *szPort; /* Holds remote port */
char *endptr; /* for strtol() */
struct hostent *he;
u_long nRemoteAddr;
WSADATA wsaData;
he=NULL;
/* Get command line arguments */
ParseCmdLine(argc, argv, &szAddress, &szPort);
/* Set the remote port */
port = strtol(szPort, &endptr, 0);
if ( *endptr )
{
printf("client: porta non riconosciuta.\n");
exit(EXIT_FAILURE);
}
if (WSAStartup(MAKEWORD(1,1), &wsaData) != 0)
{
printf("errore in WSAStartup()\n");
exit(EXIT_FAILURE);
}
/* Create the listening socket */
if ( (conn_s = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
{
fprintf(stderr, "client: errore durante la creazione della socket.\n");
exit(EXIT_FAILURE);
}
/* Set all bytes in socket address structure to
zero, and fill in the relevant data members */
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(port);
/* Set the remote IP address */
nRemoteAddr = inet_addr(szAddress);
if (nRemoteAddr == INADDR_NONE)
{
printf("client: indirizzo IP non valido.\nclient: risoluzione nome...");
if ( (he=gethostbyname(szAddress)) == 0)
{
printf("fallita.\n");
exit(EXIT_FAILURE);
}
printf("riuscita.\n\n");
nRemoteAddr = *((u_long *)he->h_addr_list[0]);
}
servaddr.sin_addr.s_addr = nRemoteAddr;
/* connect() to the remote echo server */
if ( connect(conn_s, (struct sockaddr *) &servaddr, sizeof(servaddr) ) == SOCKET_ERROR )
{
printf("client: errore durante la connect.\n");
exit(EXIT_FAILURE);
}
/* Get string to echo from user */
printf("Inserire la stringa da spedire: ");
fgets(buffer, MAX_LINE, stdin);
/* Send string to echo server, and retrieve response */
Writeline(conn_s, buffer, strlen(buffer));
memset(buffer, 0, sizeof(char)*(strlen(buffer)+1));
Readline(conn_s, buffer, MAX_LINE-1);
/* Output echoed string */
printf("Risposta del server: %s\n", buffer);
WSACleanup();
return EXIT_SUCCESS;
}
int ParseCmdLine(int argc, char *argv[], char **szAddress, char **szPort)
{
int n = 1;
while ( n < argc )
{
if ( !strncmp(argv[n], "-a", 2) || !strncmp(argv[n], "-A", 2) )
{
*szAddress = argv[++n];
}
else
if ( !strncmp(argv[n], "-p", 2) || !strncmp(argv[n], "-P", 2) )
{
*szPort = argv[++n];
}
else
if ( !strncmp(argv[n], "-h", 2) || !strncmp(argv[n], "-H", 2) )
{
printf("Sintassi:\n\n");
printf(" client -a (indirizzo server) -p (porta del server) [-h].\n\n");
exit(EXIT_SUCCESS);
}
++n;
}
if (argc==1)
{
printf("Sintassi:\n\n");
printf(" client -a (indirizzo server) -p (porta del server) [-h].\n\n");
exit(EXIT_SUCCESS);
}
return 0;
}
Hoping to get a reply soon.
Thank you,
coolkc
