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2714 cejka 1
/*  $NetBSD: exec.h,v 1.17 2000/05/22 10:18:47 elric Exp $  */
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/*-
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 * Copyright (c) 1991, 1993
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 *  The Regents of the University of California.  All rights reserved.
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 *
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 * This code is derived from software contributed to Berkeley by
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 * Kenneth Almquist.
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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. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *  This product includes software developed by the University of
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 *  California, Berkeley and its contributors.
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 * 4. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 *  @(#)exec.h  8.3 (Berkeley) 6/8/95
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 */
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/* values of cmdtype */
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#define CMDUNKNOWN -1       /* no entry in table for command */
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#define CMDNORMAL 0     /* command is an executable program */
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#define CMDBUILTIN 1        /* command is a shell builtin */
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#define CMDFUNCTION 2       /* command is a shell function */
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struct cmdentry {
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    int cmdtype;
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    union param {
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        int index;
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        union node *func;
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    } u;
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};
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#define DO_ERR  1       /* find_command prints errors */
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#define DO_ABS  2       /* find_command checks absolute paths */
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#define DO_NOFUN    4   /* find_command ignores functions */
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#define DO_BRUTE    8   /* find_command ignores hash table */
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extern const char *pathopt; /* set by padvance */
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extern int exerrno;     /* last exec error */
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void shellexec (char **, char **, const char *, int)
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    __attribute__((noreturn));
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char *padvance (const char **, const char *);
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int hashcmd (int, char **);
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void find_command (char *, struct cmdentry *, int, const char *);
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int find_builtin (char *);
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void hashcd (void);
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void changepath (const char *);
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void deletefuncs (void);
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void getcmdentry (char *, struct cmdentry *);
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void addcmdentry (char *, struct cmdentry *);
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void defun (char *, union node *);
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int unsetfunc (char *);
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int typecmd (int, char **);
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int commandcmd (int, char **);