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-rw-r--r--sys/svr4/svr4_filio.c245
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diff --git a/sys/svr4/svr4_filio.c b/sys/svr4/svr4_filio.c
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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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