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    Length: 1925 (0x785)
    Types: TextFile
    Names: »connections.c«

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            └─⟦this⟧ »../../dtia/release_apollo_2.1/connections.c« 
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            └─⟦this⟧ »../../dtia/release_sun_2.1/connections.c« 
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TextFile

#ifndef	lint
#ifndef	DEBUG
static char SCCS_id[] = "@(#)connections.c 2.1 90/08/02 19:05:13  Copyright(c) 1990 by Rational.";
#else
static char SCCS_id[] = "@(#)connections.c DEBUG 2.1 90/08/02 19:05:13  Copyright(c) 1990 by Rational.";
#endif
#endif

#include	"dtia_server.h"

static	char                	host_name[MAXHOSTNAMELEN];
static	struct	hostent 	*host;
static	struct	sockaddr_in	sock_addr;
static		u_short		port_number;
static		int		sock_fd;
static		int		addr_type=0;

int	ok_port(p)
int	p; 
{
	port_number = p;
	return (port_number>IPPORT_RESERVED) ;
}

int	init_connections() {

	if ((gethostname(host_name,MAXHOSTNAMELEN)) ||
	    (!(host = gethostbyname(host_name)))) {
		perror("Host name");
		return -1;
	}

	addr_type = host->h_addrtype;

	if ((sock_fd = socket(addr_type,SOCK_STREAM,0)) == -1) {
		perror("Socket");
		return -1;
	}

	bzero((char *)&sock_addr,sizeof(sock_addr));
	sock_addr.sin_family = addr_type;
	sock_addr.sin_port = port_number;
	bcopy(host->h_addr,(char *)&sock_addr.sin_addr,host->h_length);
	if (bind(sock_fd,(struct sockaddr *)&sock_addr,
	    sizeof(sock_addr)) == -1) {
		perror("Bind");
		return -1;
	}

	if (listen(sock_fd,5) == -1) {
		perror("Listen");
		return -1;
	}

	return 0;
}

int	wait_for_connection(timeout)
struct	timeval	*timeout; 
{
	int	ret_select;
	fd_set	r;
	FD_ZERO(&r);
	FD_SET(sock_fd,&r);
	while ((ret_select=select(getdtablesize(),
	    &r, (fd_set *)NULL, (fd_set *)NULL, 
	    (nb_sons()==0)?NULL:timeout))==-1) {
		if (errno==EINTR)	continue;
		else	break;
	}
	return	ret_select;
}

int	get_connection() {
	int	addrlen;
	int	fd;
	bzero((char *)&sock_addr,sizeof(sock_addr));
	sock_addr.sin_family = addr_type;
	sock_addr.sin_port = port_number;
	bcopy(host->h_addr,(char *)&sock_addr.sin_addr,host->h_length);
	addrlen=sizeof(sock_addr);
	fd = accept(sock_fd,(struct sockaddr *)&sock_addr,&addrlen);
	if (fd == -1) {
		perror("Accept");
	}
	return fd;
}