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The World of Computer Software
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World_Of_Computer_Software-02-386-Vol-2of3.iso
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xhearts.zip
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CONNECT.C
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C/C++ Source or Header
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1992-01-07
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1KB
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54 lines
/*
* connect.c
*
* client connection to hearts server
*/
#include <stdio.h>
#include "defs.h"
#include "local.h"
char *getenv();
/*
* Make connection to host running the hearts distributor server,
* return fd of new socket.
*/
connect_to(servhost, port)
char *servhost; /* name of host running server */
int port;
{
int sock;
struct hostent *host;
struct servent *distributor;
struct sockaddr_in sockaddr;
char buf[64];
if ((host = gethostbyname(servhost)) == NULL) {
perror("gethostbyname");
exit(1);
}
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
perror("socket");
exit(1);
}
bzero((char *) &sockaddr, sizeof (sockaddr));
bcopy(host->h_addr, (char *) &sockaddr.sin_addr, host->h_length);
sockaddr.sin_family = AF_INET;
if (port)
sockaddr.sin_port = htons(port);
else {
if ((distributor = getservbyname(SERVICE, PROTO)) == NULL) {
(void) sprintf(buf, "%s: service not found\n", SERVICE);
fputs(buf, stderr);
exit(1);
}
sockaddr.sin_port = distributor->s_port;
}
if (connect(sock, (struct sockaddr *) &sockaddr, sizeof(sockaddr)) < 0) {
(void) close (sock);
return(0);
}
return(sock);
}