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/*
* Copyright (c) 1998 Mark Newton
* Copyright (c) 1994 Christos Zoulas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/file.h>
#include <sys/filio.h>
#include <sys/fcntl.h>
#include <sys/signal.h>
#include <sys/unistd.h>
#include <sys/filedesc.h>
#include <sys/termios.h>
#include <sys/tty.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/mount.h>
#include <net/if.h>
#include <sys/malloc.h>
#include <sys/sysproto.h>
#include <svr4/svr4.h>
#include <svr4/svr4_types.h>
#include <svr4/svr4_util.h>
#include <svr4/svr4_signal.h>
#include <svr4/svr4_proto.h>
#include <svr4/svr4_ioctl.h>
#include <svr4/svr4_filio.h>
/*#define GROTTY_READ_HACK*/
int
svr4_sys_poll(p, uap)
struct proc *p;
struct svr4_sys_poll_args *uap;
{
int error;
struct poll_args pa;
struct pollfd *pfd;
int idx = 0, cerr;
u_long siz;
SCARG(&pa, fds) = SCARG(uap, fds);
SCARG(&pa, nfds) = SCARG(uap, nfds);
SCARG(&pa, timeout) = SCARG(uap, timeout);
siz = SCARG(uap, nfds) * sizeof(struct pollfd);
pfd = (struct pollfd *)malloc(siz, M_TEMP, M_WAITOK);
error = poll(p, (struct poll_args *)uap);
if ((cerr = copyin(SCARG(uap, fds), pfd, siz)) != 0) {
error = cerr;
goto done;
}
for (idx = 0; idx < SCARG(uap, nfds); idx++) {
/* POLLWRNORM already equals POLLOUT, so we don't worry about that */
if (pfd[idx].revents & (POLLIN | POLLRDNORM | POLLRDBAND | POLLPRI))
pfd[idx].revents |= (POLLIN | POLLRDBAND | POLLRDNORM | POLLPRI);
if (pfd[idx].revents & (POLLOUT | POLLWRNORM | POLLWRBAND))
pfd[idx].revents |= (POLLOUT | POLLWRNORM | POLLWRBAND);
pfd[idx].revents &= POLLSTANDARD; /* don't want to surprise SysV */
DPRINTF(("pollfd[%d]->fd = %d\n", idx, pfd[idx].fd));
DPRINTF(("pollfd[%d]->events = %x\n", idx, pfd[idx].events));
DPRINTF(("pollfd[%d]->revents = %x\n", idx, pfd[idx].revents));
}
DPRINTF(("poll(%x, %x, %d) = %d\n", SCARG(uap, fds), SCARG(uap, nfds),
SCARG(uap, timeout), p->p_retval[0]));
if ((cerr = copyout(pfd, SCARG(uap, fds), siz)) != 0) {
error = cerr;
goto done; /* yeah, I know it's the next line, but this way I won't
forget to update it if I add more code */
}
done:
free(pfd, M_TEMP);
return error;
}
#if defined(READ_TEST)
int
svr4_sys_read(p, uap)
struct proc *p;
struct svr4_sys_read_args *uap;
{
struct read_args ra;
struct filedesc *fdp = p->p_fd;
struct file *fp;
struct socket *so = NULL;
int so_state;
sigset_t sigmask;
int rv;
SCARG(&ra, fd) = SCARG(uap, fd);
SCARG(&ra, buf) = SCARG(uap, buf);
SCARG(&ra, nbyte) = SCARG(uap, nbyte);
if ((fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL) {
DPRINTF(("Something fishy with the user-supplied file descriptor...\n"));
return EBADF;
}
if (fp->f_type == DTYPE_SOCKET) {
so = (struct socket *)fp->f_data;
DPRINTF(("fd %d is a socket\n", SCARG(uap, fd)));
if (so->so_state & SS_ASYNC) {
DPRINTF(("fd %d is an ASYNC socket!\n", SCARG(uap, fd)));
}
DPRINTF(("Here are its flags: 0x%x\n", so->so_state));
#if defined(GROTTY_READ_HACK)
so_state = so->so_state;
so->so_state &= ~SS_NBIO;
#endif
}
rv = read(p, &ra);
DPRINTF(("svr4_read(%d, 0x%0x, %d) = %d\n",
SCARG(uap, fd), SCARG(uap, buf), SCARG(uap, nbyte), rv));
if (rv == EAGAIN) {
DPRINTF(("sigmask = 0x%x\n", p->p_sigmask));
DPRINTF(("sigignore = 0x%x\n", p->p_sigignore));
DPRINTF(("sigcaught = 0x%x\n", p->p_sigcatch));
DPRINTF(("siglist = 0x%x\n", p->p_siglist));
}
#if defined(GROTTY_READ_HACK)
if (so) { /* We've already checked to see if this is a socket */
so->so_state = so_state;
}
#endif
return(rv);
}
#endif /* READ_TEST */
#if defined(BOGUS)
int
svr4_sys_write(p, uap)
struct proc *p;
struct svr4_sys_write_args *uap;
{
struct write_args wa;
struct filedesc *fdp;
struct file *fp;
int rv;
SCARG(&wa, fd) = SCARG(uap, fd);
SCARG(&wa, buf) = SCARG(uap, buf);
SCARG(&wa, nbyte) = SCARG(uap, nbyte);
rv = write(p, &wa);
DPRINTF(("svr4_write(%d, 0x%0x, %d) = %d\n",
SCARG(uap, fd), SCARG(uap, buf), SCARG(uap, nbyte), rv));
return(rv);
}
#endif /* BOGUS */
int
svr4_fil_ioctl(fp, p, retval, fd, cmd, data)
struct file *fp;
struct proc *p;
register_t *retval;
int fd;
u_long cmd;
caddr_t data;
{
int error;
int num;
struct filedesc *fdp = p->p_fd;
int (*ctl) __P((struct file *, u_long, caddr_t, struct proc *)) =
fp->f_ops->fo_ioctl;
*retval = 0;
switch (cmd) {
case SVR4_FIOCLEX:
fdp->fd_ofileflags[fd] |= UF_EXCLOSE;
return 0;
case SVR4_FIONCLEX:
fdp->fd_ofileflags[fd] &= ~UF_EXCLOSE;
return 0;
case SVR4_FIOGETOWN:
case SVR4_FIOSETOWN:
case SVR4_FIOASYNC:
case SVR4_FIONBIO:
case SVR4_FIONREAD:
if ((error = copyin(data, &num, sizeof(num))) != 0)
return error;
switch (cmd) {
case SVR4_FIOGETOWN: cmd = FIOGETOWN; break;
case SVR4_FIOSETOWN: cmd = FIOSETOWN; break;
case SVR4_FIOASYNC: cmd = FIOASYNC; break;
case SVR4_FIONBIO: cmd = FIONBIO; break;
case SVR4_FIONREAD: cmd = FIONREAD; break;
}
#ifdef SVR4_DEBUG
if (cmd == FIOASYNC) DPRINTF(("FIOASYNC\n"));
#endif
error = (*ctl)(fp, cmd, (caddr_t) &num, p);
if (error)
return error;
return copyout(&num, data, sizeof(num));
default:
DPRINTF(("Unknown svr4 filio %lx\n", cmd));
return 0; /* ENOSYS really */
}
}
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