xref: /freebsd/include/wordexp.h (revision a0409676120c1e558d0ade943019934e0f15118d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2002 Tim J. Robbins.
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  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _WORDEXP_H_
32 #define	_WORDEXP_H_
33 
34 #include <sys/cdefs.h>
35 #include <sys/_types.h>
36 
37 #if __XSI_VISIBLE && !defined(_SIZE_T_DECLARED)
38 typedef	__size_t	size_t;
39 #define	_SIZE_T_DECLARED
40 #endif
41 
42 typedef struct {
43 	__size_t	we_wordc;	/* count of words matched */
44 	char		**we_wordv;	/* pointer to list of words */
45 	__size_t	we_offs;	/* slots to reserve in we_wordv */
46 	char		*we_strings;	/* storage for wordv strings */
47 	__size_t	we_nbytes;	/* size of we_strings */
48 } wordexp_t;
49 
50 /*
51  * Flags for wordexp().
52  */
53 #define	WRDE_APPEND	0x1		/* append to previously generated */
54 #define	WRDE_DOOFFS	0x2		/* we_offs member is valid */
55 #define	WRDE_NOCMD	0x4		/* disallow command substitution */
56 #define	WRDE_REUSE	0x8		/* reuse wordexp_t */
57 #define	WRDE_SHOWERR	0x10		/* don't redirect stderr to /dev/null */
58 #define	WRDE_UNDEF	0x20		/* disallow undefined shell vars */
59 
60 /*
61  * Return values from wordexp().
62  */
63 #define	WRDE_BADCHAR	1		/* unquoted special character */
64 #define	WRDE_BADVAL	2		/* undefined variable */
65 #define	WRDE_CMDSUB	3		/* command substitution not allowed */
66 #define	WRDE_NOSPACE	4		/* no memory for result */
67 #if __XSI_VISIBLE
68 #define	WRDE_NOSYS	5		/* obsolete, reserved */
69 #endif
70 #define	WRDE_SYNTAX	6		/* shell syntax error */
71 
72 __BEGIN_DECLS
73 int	wordexp(const char * __restrict, wordexp_t * __restrict, int);
74 void	wordfree(wordexp_t *);
75 __END_DECLS
76 
77 #endif /* !_WORDEXP_H_ */
78