sys/i386/ibcs2/ibcs2_util.h

   1 /*-
   2  * Copyright (c) 1994 Christos Zoulas
   3  * Copyright (c) 1995 Frank van der Linden
   4  * Copyright (c) 1995 Scott Bartram
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. The name of the author may not be used to endorse or promote products
  16  *    derived from this software without specific prior written permission
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp
  30  * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp
  31  *
  32  * $FreeBSD$
  33  */
  34
  35 /*
  36  * This file is pretty much the same as Christos' svr4_util.h
  37  * (for now).
  38  */
  39
  40 #ifndef _IBCS2_UTIL_H_
  41 #define _IBCS2_UTIL_H_
  42
  43 #include <sys/proc.h>
  44 #include <sys/uio.h>
  45
  46 #ifdef DEBUG_IBCS2
  47 #define DPRINTF(a)      printf a;
  48 #else
  49 #define DPRINTF(a)
  50 #endif
  51
  52 extern const char ibcs2_emul_path[];
  53
  54 int     ibcs2_emul_find(struct thread *, char *, enum uio_seg, char **, int);
  55
  56 #define CHECKALT(td, upath, pathp, i)                                   \
  57         do {                                                            \
  58                 int _error;                                             \
  59                                                                         \
  60                 _error = ibcs2_emul_find(td, upath, UIO_USERSPACE, pathp, i); \
  61                 if (*(pathp) == NULL)                                   \
  62                         return (_error);                                \
  63         } while (0)
  64
  65 #define CHECKALTEXIST(td, upath, pathp) CHECKALT(td, upath, pathp, 0)
  66 #define CHECKALTCREAT(td, upath, pathp) CHECKALT(td, upath, pathp, 1)
  67
  68 #ifdef SPX_HACK
  69 int     spx_open(struct thread *td);
  70 #endif
  71
  72 #endif /* !_IBCS2_UTIL_H_ */