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/* startserver.c --- open a connection to the CVS server under Windows NT
Jim Blandy <jimb@cyclic.com> --- August 1995 */
#include "cvs.h"
#include "rcmd.h"
#include <stdlib.h>
#include <winsock.h>
#include <malloc.h>
#include <io.h>
#include <errno.h>
/* Apply the Winsock shutdown function to a CRT file descriptor. */
static void
shutdown_fd (int fd, int how)
{
SOCKET s;
if ((s = _get_osfhandle (fd)) < 0)
error (1, errno, "couldn't get socket handle from file descriptor");
if (shutdown (s, how) == SOCKET_ERROR)
error (1, 0, "couldn't shut down socket half");
}
void
wnt_start_server (int *tofd, int *fromfd,
char *client_user,
char *server_user,
char *server_host,
char *server_cvsroot)
{
char *cvs_server;
char *command;
struct servent *s;
unsigned short port;
int read_fd, write_fd;
if (! (cvs_server = getenv ("CVS_SERVER")))
cvs_server = "cvs";
command = alloca (strlen (cvs_server)
+ strlen (server_cvsroot)
+ 50);
sprintf (command, "%s -d %s server", cvs_server, server_cvsroot);
if ((s = getservbyname("shell", "tcp")) == NULL)
port = IPPORT_CMDSERVER;
else
port = ntohs (s->s_port);
read_fd = rcmd (&server_host,
port,
client_user,
(server_user ? server_user : client_user),
command,
0);
if (read_fd < 0)
error (1, errno, "cannot start server via rcmd");
/* Split the socket into a reading and a writing half. */
if ((write_fd = dup (read_fd)) < 0)
error (1, errno, "duplicating server connection");
#if 0
/* This ought to be legal, since I've duped it, but shutting
down the writing end of read_fd seems to terminate the
whole connection. */
shutdown_fd (read_fd, 1);
shutdown_fd (write_fd, 0);
#endif
*tofd = write_fd;
*fromfd = read_fd;
}
void
wnt_shutdown_server (int fd)
{
SOCKET s;
if ((s = _get_osfhandle (fd)) < 0)
error (1, errno, "couldn't get handle of server connection");
if (shutdown (s, 2) == SOCKET_ERROR)
error (1, 0, "couldn't shutdown server connection");
if (closesocket (s) == SOCKET_ERROR)
error (1, 0, "couldn't close server connection");
}
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