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#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "ndelay.h"
#include "select.h"
#include "error.h"
#include "readwrite.h"
#include "ip.h"
#include "byte.h"
#include "timeoutconn.h"
int timeoutconn(s,ip,port,timeout)
int s;
struct ip_address *ip;
unsigned int port;
int timeout;
{
char ch;
struct sockaddr_in sin;
char *x;
fd_set wfds;
struct timeval tv;
byte_zero(&sin,sizeof(sin));
byte_copy(&sin.sin_addr,4,ip);
x = (char *) &sin.sin_port;
x[1] = port; port >>= 8; x[0] = port;
sin.sin_family = AF_INET;
if (ndelay_on(s) == -1) return -1;
/* XXX: could bind s */
if (connect(s,(struct sockaddr *) &sin,sizeof(sin)) == 0) {
ndelay_off(s);
return 0;
}
if ((errno != error_inprogress) && (errno != error_wouldblock)) return -1;
FD_ZERO(&wfds);
FD_SET(s,&wfds);
tv.tv_sec = timeout; tv.tv_usec = 0;
if (select(s + 1,(fd_set *) 0,&wfds,(fd_set *) 0,&tv) == -1) return -1;
if (FD_ISSET(s,&wfds)) {
int dummy;
dummy = sizeof(sin);
if (getpeername(s,(struct sockaddr *) &sin,&dummy) == -1) {
read(s,&ch,1);
return -1;
}
ndelay_off(s);
return 0;
}
errno = error_timeout; /* note that connect attempt is continuing */
return -1;
}
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