xref: /freebsd/include/wordexp.h (revision 031beb4e239bfce798af17f5fe8dba8bcaf13d99)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
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 
29 #ifndef _WORDEXP_H_
30 #define	_WORDEXP_H_
31 
32 #include <sys/cdefs.h>
33 #include <sys/_types.h>
34 
35 #if __XSI_VISIBLE && !defined(_SIZE_T_DECLARED)
36 typedef	__size_t	size_t;
37 #define	_SIZE_T_DECLARED
38 #endif
39 
40 typedef struct {
41 	__size_t	we_wordc;	/* count of words matched */
42 	char		**we_wordv;	/* pointer to list of words */
43 	__size_t	we_offs;	/* slots to reserve in we_wordv */
44 	char		*we_strings;	/* storage for wordv strings */
45 	__size_t	we_nbytes;	/* size of we_strings */
46 } wordexp_t;
47 
48 /*
49  * Flags for wordexp().
50  */
51 #define	WRDE_APPEND	0x1		/* append to previously generated */
52 #define	WRDE_DOOFFS	0x2		/* we_offs member is valid */
53 #define	WRDE_NOCMD	0x4		/* disallow command substitution */
54 #define	WRDE_REUSE	0x8		/* reuse wordexp_t */
55 #define	WRDE_SHOWERR	0x10		/* don't redirect stderr to /dev/null */
56 #define	WRDE_UNDEF	0x20		/* disallow undefined shell vars */
57 
58 /*
59  * Return values from wordexp().
60  */
61 #define	WRDE_BADCHAR	1		/* unquoted special character */
62 #define	WRDE_BADVAL	2		/* undefined variable */
63 #define	WRDE_CMDSUB	3		/* command substitution not allowed */
64 #define	WRDE_NOSPACE	4		/* no memory for result */
65 #if __XSI_VISIBLE
66 #define	WRDE_NOSYS	5		/* obsolete, reserved */
67 #endif
68 #define	WRDE_SYNTAX	6		/* shell syntax error */
69 
70 __BEGIN_DECLS
71 int	wordexp(const char * __restrict, wordexp_t * __restrict, int);
72 void	wordfree(wordexp_t *);
73 __END_DECLS
74 
75 #endif /* !_WORDEXP_H_ */
76