The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/compat/svr4/svr4_util.h

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    1 /*-
    2  * Copyright (c) 1998 Mark Newton
    3  * Copyright (c) 1994 Christos Zoulas
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. The name of the author may not be used to endorse or promote products
   15  *    derived from this software without specific prior written permission
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  * 
   28  * $FreeBSD: releng/11.1/sys/compat/svr4/svr4_util.h 295882 2016-02-22 09:08:04Z skra $
   29  */
   30 
   31 #ifndef _SVR4_UTIL_H_
   32 #define _SVR4_UTIL_H_
   33 
   34 /*#include <compat/common/compat_util.h>*/
   35 #include <vm/vm.h>
   36 #include <vm/vm_param.h>
   37 #include <vm/pmap.h>
   38 #include <sys/exec.h>
   39 #include <sys/sysent.h>
   40 #include <sys/cdefs.h>
   41 #include <sys/uio.h>
   42 
   43 #ifdef DEBUG_SVR4
   44 #define DPRINTF(a)      uprintf a;
   45 #else
   46 #define DPRINTF(a)
   47 #endif
   48 
   49 int     svr4_emul_find(struct thread *, char *, enum uio_seg, char **, int);
   50 
   51 #define CHECKALT(td, upath, pathp, i)                                   \
   52         do {                                                            \
   53                 int _error;                                             \
   54                                                                         \
   55                 _error = svr4_emul_find(td, upath, UIO_USERSPACE, pathp, i); \
   56                 if (*(pathp) == NULL)                                   \
   57                         return (_error);                                \
   58         } while (0)
   59 
   60 #define CHECKALTEXIST(td, upath, pathp) CHECKALT(td, upath, pathp, 0)
   61 #define CHECKALTCREAT(td, upath, pathp) CHECKALT(td, upath, pathp, 1)
   62 
   63 #endif /* !_SVR4_UTIL_H_ */

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