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15 * This product includes software developed by the University of
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33 * @(#)sys_socket.c 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/kern/sys_socket.c,v 1.28.2.2 2001/02/26 04:23:16 jlemon Exp $
35 * $DragonFly: src/sys/kern/sys_socket.c,v 1.3 2003/06/25 03:55:57 dillon Exp $
38 #include <sys/param.h>
39 #include <sys/systm.h>
41 #include <sys/protosw.h>
42 #include <sys/socket.h>
43 #include <sys/socketvar.h>
44 #include <sys/filio.h> /* XXX */
45 #include <sys/sockio.h>
48 #include <sys/filedesc.h>
49 #include <sys/ucred.h>
52 #include <net/route.h>
54 struct fileops socketops = {
55 soo_read, soo_write, soo_ioctl, soo_poll, sokqfilter,
68 struct socket *so = (struct socket *)fp->f_data;
69 return so->so_proto->pr_usrreqs->pru_soreceive(so, 0, uio, 0, 0, 0);
81 struct socket *so = (struct socket *)fp->f_data;
82 return so->so_proto->pr_usrreqs->pru_sosend(so, 0, uio, 0, 0, 0,
87 soo_ioctl(struct file *fp, u_long cmd, caddr_t data, struct thread *td)
89 register struct socket *so = (struct socket *)fp->f_data;
95 so->so_state |= SS_NBIO;
97 so->so_state &= ~SS_NBIO;
102 so->so_state |= SS_ASYNC;
103 so->so_rcv.sb_flags |= SB_ASYNC;
104 so->so_snd.sb_flags |= SB_ASYNC;
106 so->so_state &= ~SS_ASYNC;
107 so->so_rcv.sb_flags &= ~SB_ASYNC;
108 so->so_snd.sb_flags &= ~SB_ASYNC;
113 *(int *)data = so->so_rcv.sb_cc;
117 return (fsetown(*(int *)data, &so->so_sigio));
120 *(int *)data = fgetown(so->so_sigio);
124 return (fsetown(-(*(int *)data), &so->so_sigio));
127 *(int *)data = -fgetown(so->so_sigio);
131 *(int *)data = (so->so_state&SS_RCVATMARK) != 0;
135 * Interface/routing/protocol specific ioctls:
136 * interface and routing ioctls should have a
137 * different entry since a socket's unnecessary
139 if (IOCGROUP(cmd) == 'i')
140 return (ifioctl(so, cmd, data, td));
141 if (IOCGROUP(cmd) == 'r')
142 return (rtioctl(cmd, data, td));
143 return ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, td));
147 soo_poll(struct file *fp, int events, struct ucred *cred, struct thread *td)
149 struct socket *so = (struct socket *)fp->f_data;
150 return so->so_proto->pr_usrreqs->pru_sopoll(so, events, cred, td);
154 soo_stat(struct file *fp, struct stat *ub, struct thread *td)
156 struct socket *so = (struct socket *)fp->f_data;
158 bzero((caddr_t)ub, sizeof (*ub));
159 ub->st_mode = S_IFSOCK;
161 * If SS_CANTRCVMORE is set, but there's still data left in the
162 * receive buffer, the socket is still readable.
164 if ((so->so_state & SS_CANTRCVMORE) == 0 ||
165 so->so_rcv.sb_cc != 0)
166 ub->st_mode |= S_IRUSR | S_IRGRP | S_IROTH;
167 if ((so->so_state & SS_CANTSENDMORE) == 0)
168 ub->st_mode |= S_IWUSR | S_IWGRP | S_IWOTH;
169 ub->st_size = so->so_rcv.sb_cc;
170 ub->st_uid = so->so_cred->cr_uid;
171 ub->st_gid = so->so_cred->cr_gid;
172 return ((*so->so_proto->pr_usrreqs->pru_sense)(so, ub));
177 soo_close(struct file *fp, struct thread *td)
181 fp->f_ops = &badfileops;
183 error = soclose((struct socket *)fp->f_data);