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#include <sys/cdefs.h>
#include "namespace.h"
#include <lib.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <net/gen/in.h>
#include <net/gen/tcp.h>
#include <net/gen/tcp_io.h>
#define DEBUG 0
static int _tcp_shutdown(int sock, int how);
static int _uds_shutdown(int sock, int how);
/*
* Shut down socket send and receive operations.
*/
static int
__shutdown(int fd, int how)
{
message m;
memset(&m, 0, sizeof(m));
m.m_lc_vfs_shutdown.fd = fd;
m.m_lc_vfs_shutdown.how = how;
return _syscall(VFS_PROC_NR, VFS_SHUTDOWN, &m);
}
int shutdown(int sock, int how)
{
int r;
struct sockaddr_un uds_addr;
nwio_tcpconf_t tcpconf;
r = __shutdown(sock, how);
if (r != -1 || (errno != ENOTSOCK && errno != ENOSYS))
return r;
r= ioctl(sock, NWIOGTCPCONF, &tcpconf);
if (r != -1 || errno != ENOTTY)
{
if (r == -1)
{
/* Bad file descriptor */
return -1;
}
return _tcp_shutdown(sock, how);
}
r= ioctl(sock, NWIOGUDSADDR, &uds_addr);
if (r != -1 || errno != ENOTTY)
{
if (r == -1)
{
/* Bad file descriptor */
return -1;
}
return _uds_shutdown(sock, how);
}
errno = ENOTSOCK;
return -1;
}
static int _tcp_shutdown(int sock, int how)
{
int r;
if (how == SHUT_WR || how == SHUT_RDWR)
{
r= ioctl(sock, NWIOTCPSHUTDOWN, NULL);
if (r == -1)
return -1;
if (how == SHUT_WR)
return 0;
}
/* We can't shutdown the read side of the socket. */
errno= ENOSYS;
return -1;
}
static int _uds_shutdown(int sock, int how)
{
return ioctl(sock, NWIOSUDSSHUT, &how);
}
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