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1.1 root 1: /*
2: * Copyright (c) 1982, 1986, 1990 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
1.1.1.2 ! root 33: * from: @(#)sys_socket.c 7.11 (Berkeley) 4/16/91
! 34: * sys_socket.c,v 1.4 1993/06/27 06:01:56 andrew Exp
1.1 root 35: */
36:
37: #include "param.h"
38: #include "systm.h"
39: #include "file.h"
40: #include "mbuf.h"
41: #include "protosw.h"
42: #include "socket.h"
43: #include "socketvar.h"
44: #include "ioctl.h"
45: #include "stat.h"
46:
47: #include "net/if.h"
48: #include "net/route.h"
49:
50: struct fileops socketops =
51: { soo_read, soo_write, soo_ioctl, soo_select, soo_close };
52:
53: /* ARGSUSED */
1.1.1.2 ! root 54: int
1.1 root 55: soo_read(fp, uio, cred)
56: struct file *fp;
57: struct uio *uio;
58: struct ucred *cred;
59: {
60:
61: return (soreceive((struct socket *)fp->f_data, (struct mbuf **)0,
62: uio, (struct mbuf **)0, (struct mbuf **)0, (int *)0));
63: }
64:
65: /* ARGSUSED */
1.1.1.2 ! root 66: int
1.1 root 67: soo_write(fp, uio, cred)
68: struct file *fp;
69: struct uio *uio;
70: struct ucred *cred;
71: {
72:
73: return (sosend((struct socket *)fp->f_data, (struct mbuf *)0,
74: uio, (struct mbuf *)0, (struct mbuf *)0, 0));
75: }
76:
1.1.1.2 ! root 77: int
1.1 root 78: soo_ioctl(fp, cmd, data, p)
79: struct file *fp;
80: int cmd;
81: register caddr_t data;
82: struct proc *p;
83: {
84: register struct socket *so = (struct socket *)fp->f_data;
85:
86: switch (cmd) {
87:
88: case FIONBIO:
89: if (*(int *)data)
90: so->so_state |= SS_NBIO;
91: else
92: so->so_state &= ~SS_NBIO;
93: return (0);
94:
95: case FIOASYNC:
96: if (*(int *)data) {
97: so->so_state |= SS_ASYNC;
98: so->so_rcv.sb_flags |= SB_ASYNC;
99: so->so_snd.sb_flags |= SB_ASYNC;
100: } else {
101: so->so_state &= ~SS_ASYNC;
102: so->so_rcv.sb_flags &= ~SB_ASYNC;
103: so->so_snd.sb_flags &= ~SB_ASYNC;
104: }
105: return (0);
106:
107: case FIONREAD:
108: *(int *)data = so->so_rcv.sb_cc;
109: return (0);
110:
111: case SIOCSPGRP:
112: so->so_pgid = *(int *)data;
113: return (0);
114:
115: case SIOCGPGRP:
116: *(int *)data = so->so_pgid;
117: return (0);
118:
119: case SIOCATMARK:
120: *(int *)data = (so->so_state&SS_RCVATMARK) != 0;
121: return (0);
122: }
123: /*
124: * Interface/routing/protocol specific ioctls:
125: * interface and routing ioctls should have a
126: * different entry since a socket's unnecessary
127: */
128: if (IOCGROUP(cmd) == 'i')
129: return (ifioctl(so, cmd, data, p));
130: if (IOCGROUP(cmd) == 'r')
131: return (rtioctl(cmd, data, p));
132: return ((*so->so_proto->pr_usrreq)(so, PRU_CONTROL,
133: (struct mbuf *)cmd, (struct mbuf *)data, (struct mbuf *)0));
134: }
135:
1.1.1.2 ! root 136: int
1.1 root 137: soo_select(fp, which, p)
138: struct file *fp;
139: int which;
140: struct proc *p;
141: {
142: register struct socket *so = (struct socket *)fp->f_data;
143: register int s = splnet();
144:
145: switch (which) {
146:
147: case FREAD:
148: if (soreadable(so)) {
149: splx(s);
150: return (1);
151: }
152: sbselqueue(&so->so_rcv, p);
153: break;
154:
155: case FWRITE:
156: if (sowriteable(so)) {
157: splx(s);
158: return (1);
159: }
160: sbselqueue(&so->so_snd, p);
161: break;
162:
163: case 0:
164: if (so->so_oobmark ||
165: (so->so_state & SS_RCVATMARK)) {
166: splx(s);
167: return (1);
168: }
169: sbselqueue(&so->so_rcv, p);
170: break;
171: }
172: splx(s);
173: return (0);
174: }
175:
1.1.1.2 ! root 176: int
1.1 root 177: soo_stat(so, ub)
178: register struct socket *so;
179: register struct stat *ub;
180: {
181:
182: bzero((caddr_t)ub, sizeof (*ub));
183: return ((*so->so_proto->pr_usrreq)(so, PRU_SENSE,
184: (struct mbuf *)ub, (struct mbuf *)0,
185: (struct mbuf *)0));
186: }
187:
188: /* ARGSUSED */
1.1.1.2 ! root 189: int
1.1 root 190: soo_close(fp, p)
191: struct file *fp;
192: struct proc *p;
193: {
194: int error = 0;
195:
196: if (fp->f_data)
197: error = soclose((struct socket *)fp->f_data);
198: fp->f_data = 0;
199: return (error);
200: }
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