2 * Copyright (c) 1998 Mark Newton
3 * Copyright (c) 1994 Christos Zoulas
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/svr4/svr4_filio.c,v 1.8 2000/01/15 15:30:44 newton Exp $
29 * $DragonFly: src/sys/emulation/svr4/Attic/svr4_filio.c,v 1.8 2005/06/22 01:33:29 dillon Exp $
32 #include <sys/param.h>
34 #include <sys/systm.h>
36 #include <sys/filio.h>
37 #include <sys/signal.h>
38 #include <sys/filedesc.h>
40 #include <sys/malloc.h>
41 #include <sys/file2.h>
43 #include <sys/sysproto.h>
46 #include "svr4_types.h"
47 #include "svr4_util.h"
48 #include "svr4_signal.h"
49 #include "svr4_proto.h"
50 #include "svr4_ioctl.h"
51 #include "svr4_filio.h"
53 /*#define GROTTY_READ_HACK*/
56 svr4_sys_poll(struct svr4_sys_poll_args *uap)
64 SCARG(&pa, fds) = SCARG(uap, fds);
65 SCARG(&pa, nfds) = SCARG(uap, nfds);
66 SCARG(&pa, timeout) = SCARG(uap, timeout);
68 siz = SCARG(uap, nfds) * sizeof(struct pollfd);
69 pfd = (struct pollfd *)malloc(siz, M_TEMP, M_WAITOK);
71 error = poll((struct poll_args *)uap);
73 if ((cerr = copyin(SCARG(uap, fds), pfd, siz)) != 0) {
78 for (idx = 0; idx < SCARG(uap, nfds); idx++) {
79 /* POLLWRNORM already equals POLLOUT, so we don't worry about that */
80 if (pfd[idx].revents & (POLLOUT | POLLWRNORM | POLLWRBAND))
81 pfd[idx].revents |= (POLLOUT | POLLWRNORM | POLLWRBAND);
83 if ((cerr = copyout(pfd, SCARG(uap, fds), siz)) != 0) {
85 goto done; /* yeah, I know it's the next line, but this way I won't
86 forget to update it if I add more code */
93 #if defined(READ_TEST)
95 svr4_sys_read(struct svr4_sys_read_args *uap)
98 struct filedesc *fdp = p->p_fd;
100 struct socket *so = NULL;
105 SCARG(&ra, fd) = SCARG(uap, fd);
106 SCARG(&ra, buf) = SCARG(uap, buf);
107 SCARG(&ra, nbyte) = SCARG(uap, nbyte);
109 if ((fp = fdp->fd_files[SCARG(uap, fd)].fp) == NULL) {
110 DPRINTF(("Something fishy with the user-supplied file descriptor...\n"));
114 if (fp->f_type == DTYPE_SOCKET) {
115 so = (struct socket *)fp->f_data;
116 DPRINTF(("fd %d is a socket\n", SCARG(uap, fd)));
117 if (so->so_state & SS_ASYNC) {
118 DPRINTF(("fd %d is an ASYNC socket!\n", SCARG(uap, fd)));
120 DPRINTF(("Here are its flags: 0x%x\n", so->so_state));
121 #if defined(GROTTY_READ_HACK)
122 so_state = so->so_state;
123 so->so_state &= ~SS_NBIO;
127 ra.sysmsg_result = 0;
129 uap->sysmsg_result = ra.sysmsg_result;
131 DPRINTF(("svr4_read(%d, 0x%0x, %d) = %d\n",
132 SCARG(uap, fd), SCARG(uap, buf), SCARG(uap, nbyte), rv));
134 DPRINTF(("sigmask = 0x%x\n", p->p_sigmask));
135 DPRINTF(("sigignore = 0x%x\n", p->p_sigignore));
136 DPRINTF(("sigcaught = 0x%x\n", p->p_sigcatch));
137 DPRINTF(("siglist = 0x%x\n", p->p_siglist));
140 #if defined(GROTTY_READ_HACK)
141 if (so) { /* We've already checked to see if this is a socket */
142 so->so_state = so_state;
148 #endif /* READ_TEST */
152 svr4_sys_write(struct svr4_sys_write_args *uap)
154 struct write_args wa;
155 struct filedesc *fdp;
159 SCARG(&wa, fd) = SCARG(uap, fd);
160 SCARG(&wa, buf) = SCARG(uap, buf);
161 SCARG(&wa, nbyte) = SCARG(uap, nbyte);
163 wa.sysmsg_result = 0;
165 uap->sysmsg_result = wa.sysmsg_result;
167 DPRINTF(("svr4_write(%d, 0x%0x, %d) = %d\n",
168 SCARG(uap, fd), SCARG(uap, buf), SCARG(uap, nbyte), rv));
175 svr4_fil_ioctl(fp, td, retval, fd, cmd, data)
183 struct proc *p = td->td_proc;
186 struct filedesc *fdp;
195 fdp->fd_files[fd].fileflags |= UF_EXCLOSE;
199 fdp->fd_files[fd].fileflags &= ~UF_EXCLOSE;
207 if ((error = copyin(data, &num, sizeof(num))) != 0)
211 case SVR4_FIOGETOWN: cmd = FIOGETOWN; break;
212 case SVR4_FIOSETOWN: cmd = FIOSETOWN; break;
213 case SVR4_FIOASYNC: cmd = FIOASYNC; break;
214 case SVR4_FIONBIO: cmd = FIONBIO; break;
215 case SVR4_FIONREAD: cmd = FIONREAD; break;
219 if (cmd == FIOASYNC) DPRINTF(("FIOASYNC\n"));
221 error = fo_ioctl(fp, cmd, (caddr_t) &num, td);
226 return copyout(&num, data, sizeof(num));
229 DPRINTF(("Unknown svr4 filio %lx\n", cmd));
230 return 0; /* ENOSYS really */