/*****************************************************************************/
/*** test-port-client.c ***/
/*** ***/
/*****************************************************************************/
/**************************************************************************
* This is a port-read client. It will accept any IP address and port
* number on the commandline, connect to the server, send the message
* (if any defined), read the reply, and close.
**************************************************************************/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#define MAXBUF 1024
int main(int Count, char *Strings[])
{
int sockfd, bytes_read;
struct sockaddr_in dest;
char buffer[MAXBUF];
/*
* Make sure we have the right number of parameters
*/
if ( Count < 3 || Count > 4 )
{
fprintf(stderr, "usage: %s <IP-addr> <port> [<send-msg>]\n", Strings[0]);
exit(0);
}
/*
* Create socket for streaming
*/
if ( (sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0 )
{
perror("Socket");
exit(errno);
}
/*
* Initialize server address/port struct
*/
bzero(&dest, sizeof(dest));
dest.sin_family = AF_INET;
if ( inet_addr(Strings[1], &dest.sin_addr.s_addr) == 0 )
{
perror(Strings[1]);
exit(errno);
}
dest.sin_port = htons(atoi(Strings[2]));
/*
* Connect to server
*/
if ( connect(sockfd, (struct sockaddr *)&dest, sizeof(dest)) != 0 )
{
perror("Connect");
exit(errno);
}
/*
* To send message to server, send with a '\n' (newline)
*/
if ( Count == 4 )
{
sprintf(buffer, "%s\n", Strings[3]);
send(sockfd, buffer, strlen(buffer), 0);
}
/*
* While there's data, read and print it
*/
do
{
bzero(buffer, MAXBUF);
bytes_read = recv(sockfd, buffer, MAXBUF, 0);
if ( bytes_read > 0 )
printf("%s", buffer);
}
while ( bytes_read > 0 );
/*
* Clean up
*/
close(sockfd);
return 0;
}
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