0ba59a6f70
the semantics in that the returned filename to use is now a kernel pointer rather than a user space pointer. This required changing the arguments to the CHECKALT*() macros some and changing the various system calls that used pathnames to use the kern_foo() functions that can accept kernel space filename pointers instead of calling the system call directly. - Use kern_open(), kern_access(), kern_execve(), kern_mkfifo(), kern_mknod(), kern_setitimer(), kern_getrusage(), kern_utimes(), kern_unlink(), kern_chdir(), kern_chmod(), kern_chown(), kern_symlink(), kern_readlink(), kern_select(), kern_statfs(), kern_fstatfs(), kern_stat(), kern_lstat(), kern_fstat(). - Drop the unused 'uap' argument from spx_open(). - Replace a stale duplication of vn_access() in xenix_access() lacking recent additions such as MAC checks, etc. with a call to kern_access().
124 lines
3.3 KiB
C
124 lines
3.3 KiB
C
/*-
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* Copyright (c) 1995 Steven Wallace
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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. 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* IBCS2 compatibility module.
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*/
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#include "opt_spx_hack.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sysproto.h>
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#include <i386/ibcs2/ibcs2_types.h>
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#include <i386/ibcs2/ibcs2_signal.h>
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#include <i386/ibcs2/ibcs2_util.h>
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#include <i386/ibcs2/ibcs2_proto.h>
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#define IBCS2_SECURE_GETLUID 1
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#define IBCS2_SECURE_SETLUID 2
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int
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ibcs2_secure(struct thread *td, struct ibcs2_secure_args *uap)
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{
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switch (uap->cmd) {
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case IBCS2_SECURE_GETLUID: /* get login uid */
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td->td_retval[0] = td->td_ucred->cr_uid;
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return 0;
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case IBCS2_SECURE_SETLUID: /* set login uid */
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return EPERM;
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default:
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printf("IBCS2: 'secure' cmd=%d not implemented\n", uap->cmd);
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}
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return EINVAL;
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}
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int
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ibcs2_lseek(struct thread *td, register struct ibcs2_lseek_args *uap)
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{
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struct lseek_args largs;
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int error;
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largs.fd = uap->fd;
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largs.offset = uap->offset;
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largs.whence = uap->whence;
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error = lseek(td, &largs);
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return (error);
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}
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#ifdef SPX_HACK
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#include <sys/socket.h>
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#include <sys/un.h>
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int
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spx_open(struct thread *td)
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{
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struct socket_args sock;
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struct connect_args conn;
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struct sockaddr_un *Xaddr;
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int fd, error;
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caddr_t sg = stackgap_init();
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/* obtain a socket. */
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DPRINTF(("SPX: open socket\n"));
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sock.domain = AF_UNIX;
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sock.type = SOCK_STREAM;
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sock.protocol = 0;
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error = socket(td, &sock);
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if (error)
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return error;
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/* connect the socket to standard X socket */
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DPRINTF(("SPX: connect to /tmp/X11-unix/X0\n"));
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Xaddr = stackgap_alloc(&sg, sizeof(struct sockaddr_un));
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Xaddr->sun_family = AF_UNIX;
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Xaddr->sun_len = sizeof(struct sockaddr_un) - sizeof(Xaddr->sun_path) +
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strlen(Xaddr->sun_path) + 1;
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copyout("/tmp/.X11-unix/X0", Xaddr->sun_path, 18);
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conn.s = fd = td->td_retval[0];
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conn.name = (caddr_t)Xaddr;
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conn.namelen = sizeof(struct sockaddr_un);
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error = connect(td, &conn);
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if (error) {
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struct close_args cl;
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cl.fd = fd;
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close(td, &cl);
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return error;
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}
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td->td_retval[0] = fd;
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return 0;
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}
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#endif /* SPX_HACK */
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