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