b40ce4165d
Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
162 lines
4.4 KiB
C
162 lines
4.4 KiB
C
/*
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* Copyright (c) 1998 Mark Newton
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* Copyright (c) 1994 Christos Zoulas
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/fcntl.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/systm.h>
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#include <compat/svr4/svr4.h>
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#include <compat/svr4/svr4_types.h>
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#include <compat/svr4/svr4_util.h>
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#include <compat/svr4/svr4_signal.h>
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#include <compat/svr4/svr4_proto.h>
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#include <compat/svr4/svr4_stropts.h>
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#include <compat/svr4/svr4_ioctl.h>
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#include <compat/svr4/svr4_termios.h>
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#include <compat/svr4/svr4_ttold.h>
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#include <compat/svr4/svr4_filio.h>
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#include <compat/svr4/svr4_sockio.h>
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#ifdef DEBUG_SVR4
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static void svr4_decode_cmd __P((u_long, char *, char *, int *, int *));
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/*
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* Decode an ioctl command symbolically
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*/
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static void
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svr4_decode_cmd(cmd, dir, c, num, argsiz)
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u_long cmd;
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char *dir, *c;
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int *num, *argsiz;
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{
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if (cmd & SVR4_IOC_VOID)
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*dir++ = 'V';
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if (cmd & SVR4_IOC_IN)
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*dir++ = 'R';
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if (cmd & SVR4_IOC_OUT)
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*dir++ = 'W';
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*dir = '\0';
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if (cmd & SVR4_IOC_INOUT)
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*argsiz = (cmd >> 16) & 0xff;
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else
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*argsiz = -1;
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*c = (cmd >> 8) & 0xff;
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*num = cmd & 0xff;
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}
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#endif
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int
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svr4_sys_ioctl(td, uap)
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register struct thread *td;
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struct svr4_sys_ioctl_args *uap;
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{
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int *retval;
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struct file *fp;
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struct filedesc *fdp;
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u_long cmd;
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int (*fun) __P((struct file *, struct thread *, register_t *,
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int, u_long, caddr_t));
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#ifdef DEBUG_SVR4
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char dir[4];
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char c;
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int num;
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int argsiz;
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svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz);
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DPRINTF(("svr4_ioctl[%lx](%d, _IO%s(%c, %d, %d), %p);\n", SCARG(uap, com), SCARG(uap, fd),
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dir, c, num, argsiz, SCARG(uap, data)));
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#endif
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retval = td->td_retval;
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fdp = td->td_proc->p_fd;
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cmd = SCARG(uap, com);
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if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
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(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
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return EBADF;
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if ((fp->f_flag & (FREAD | FWRITE)) == 0)
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return EBADF;
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#if defined(DEBUG_SVR4)
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if (fp->f_type == DTYPE_SOCKET) {
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struct socket *so = (struct socket *)fp->f_data;
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DPRINTF(("<<< IN: so_state = 0x%x\n", so->so_state));
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}
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#endif
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switch (cmd & 0xff00) {
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case SVR4_tIOC:
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DPRINTF(("ttold\n"));
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fun = svr4_ttold_ioctl;
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break;
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case SVR4_TIOC:
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DPRINTF(("term\n"));
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fun = svr4_term_ioctl;
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break;
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case SVR4_STR:
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DPRINTF(("stream\n"));
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fun = svr4_stream_ioctl;
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break;
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case SVR4_FIOC:
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DPRINTF(("file\n"));
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fun = svr4_fil_ioctl;
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break;
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case SVR4_SIOC:
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DPRINTF(("socket\n"));
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fun = svr4_sock_ioctl;
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break;
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case SVR4_XIOC:
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/* We do not support those */
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return EINVAL;
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default:
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DPRINTF(("Unimplemented ioctl %lx\n", cmd));
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return 0; /* XXX: really ENOSYS */
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}
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#if defined(DEBUG_SVR4)
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if (fp->f_type == DTYPE_SOCKET) {
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struct socket *so = (struct socket *)fp->f_data;
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DPRINTF((">>> OUT: so_state = 0x%x\n", so->so_state));
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}
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#endif
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return (*fun)(fp, td, retval, SCARG(uap, fd), cmd, SCARG(uap, data));
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}
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