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  1. /*  $NetBSD: exec.h,v 1.17 2000/05/22 10:18:47 elric Exp $  */
  2.  
  3. /*-
  4.  * Copyright (c) 1991, 1993
  5.  *  The Regents of the University of California.  All rights reserved.
  6.  *
  7.  * This code is derived from software contributed to Berkeley by
  8.  * Kenneth Almquist.
  9.  *
  10.  * Redistribution and use in source and binary forms, with or without
  11.  * modification, are permitted provided that the following conditions
  12.  * are met:
  13.  * 1. Redistributions of source code must retain the above copyright
  14.  *    notice, this list of conditions and the following disclaimer.
  15.  * 2. Redistributions in binary form must reproduce the above copyright
  16.  *    notice, this list of conditions and the following disclaimer in the
  17.  *    documentation and/or other materials provided with the distribution.
  18.  * 3. All advertising materials mentioning features or use of this software
  19.  *    must display the following acknowledgement:
  20.  *  This product includes software developed by the University of
  21.  *  California, Berkeley and its contributors.
  22.  * 4. Neither the name of the University nor the names of its contributors
  23.  *    may be used to endorse or promote products derived from this software
  24.  *    without specific prior written permission.
  25.  *
  26.  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30.  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31.  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34.  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36.  * SUCH DAMAGE.
  37.  *
  38.  *  @(#)exec.h  8.3 (Berkeley) 6/8/95
  39.  */
  40.  
  41. /* values of cmdtype */
  42. #define CMDUNKNOWN -1       /* no entry in table for command */
  43. #define CMDNORMAL 0     /* command is an executable program */
  44. #define CMDBUILTIN 1        /* command is a shell builtin */
  45. #define CMDFUNCTION 2       /* command is a shell function */
  46.  
  47.  
  48. struct cmdentry {
  49.     int cmdtype;
  50.     union param {
  51.         int index;
  52.         union node *func;
  53.     } u;
  54. };
  55.  
  56.  
  57. #define DO_ERR  1       /* find_command prints errors */
  58. #define DO_ABS  2       /* find_command checks absolute paths */
  59. #define DO_NOFUN    4   /* find_command ignores functions */
  60. #define DO_BRUTE    8   /* find_command ignores hash table */
  61.  
  62. extern const char *pathopt; /* set by padvance */
  63. extern int exerrno;     /* last exec error */
  64.  
  65. void shellexec (char **, char **, const char *, int)
  66.     __attribute__((noreturn));
  67. char *padvance (const char **, const char *);
  68. int hashcmd (int, char **);
  69. void find_command (char *, struct cmdentry *, int, const char *);
  70. int find_builtin (char *);
  71. void hashcd (void);
  72. void changepath (const char *);
  73. void deletefuncs (void);
  74. void getcmdentry (char *, struct cmdentry *);
  75. void addcmdentry (char *, struct cmdentry *);
  76. void defun (char *, union node *);
  77. int unsetfunc (char *);
  78. int typecmd (int, char **);
  79. int commandcmd (int, char **);
  80.