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/*
* clientTcp.c : generate an executable to test the TCP Sockets.
* the RTEMS target must be configured as server.
* Don't forget to change the IP address.
*/
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <arpa/inet.h>
#include <netinet/ip_icmp.h>
#include <netdb.h>
#include "../buffer.h"
#define DEFAULT_IP "194.2.81.61"
#define DEFAULT_LISTEN_IP "194.2.81.126"
int main(int argc, char** argv )
{
int sd;
struct sockaddr_in server;
struct hostent *hp;
struct sockaddr_in from;
int fromlen;
int i,retval;
char *tabChar;
char *server_name= "localhost";
unsigned short port;
unsigned long lenChar;
struct timespec timeToWait, timeRem;
printf("main begin...\n");
port = DEFAULT_PORT_SERVER;
server_name = DEFAULT_IP;
bzero(&server, sizeof(server));
sd = socket (AF_INET,SOCK_STREAM,0);
printf("socket() result:<%d>\n", sd);
if (sd<0) {
printf("opening stream socket\n");
exit(-1);
}
if (inet_aton (server_name, (struct in_addr*)&(server.sin_addr.s_addr)) == 0) {
printf("%s : IP address: bad format\n",
argv[0]);
}
server.sin_family = AF_INET;
server.sin_port = htons(port);
/* Connect to TCP/SERVER */
if ( (retval = connect(sd, &server, sizeof(server))) < 0 ) {
close(sd);
perror("connecting stream socket");
exit(0);
}
printf("connect() result:<%d>\n", retval);
fromlen = sizeof(from);
if ( (retval = getpeername(sd,&from,&fromlen)) <0){
perror("could't get peername\n");
exit(1);
}
printf("getpeername() result:<%d>\n", retval);
printf("Connected to TCP/Server:");
printf("%s:%d\n", inet_ntoa(from.sin_addr), ntohs(from.sin_port));
if ((hp = gethostbyaddr((const char *)(&from.sin_addr.s_addr),
sizeof(from.sin_addr.s_addr),AF_INET)) == NULL)
fprintf(stderr, "Can't find host %s\n", inet_ntoa(from.sin_addr));
else
printf("(Name is : %s)\n", hp->h_name);
printf("Now, let's send packets...");
while(1) {
tabChar = BuildBuffer();
lenChar = *((unsigned long *)(tabChar));
i = send(sd, tabChar, lenChar, 0);
if (i == -1)
{
fprintf(stderr,"send() failed (at least locally detected errors)\n");
return -1;
}
timeToWait.tv_sec = 1;
timeToWait.tv_nsec = 0;
nanosleep(&timeToWait, &timeRem);
FreeBuffer(tabChar);
}
close(sd);
exit (0);
}
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