grep.h revision 210389 
1/*	$OpenBSD: grep.h,v 1.15 2010/04/05 03:03:55 tedu Exp $	*/
2/*	$FreeBSD: head/usr.bin/grep/grep.h 210389 2010-07-22 19:11:57Z gabor $	*/
3
4/*-
5 * Copyright (c) 1999 James Howard and Dag-Erling Co�dan Sm�rgrav
6 * Copyright (c) 2008-2009 Gabor Kovesdan <gabor@FreeBSD.org>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <bzlib.h>
32#include <limits.h>
33#include <regex.h>
34#include <stdbool.h>
35#include <stdio.h>
36#include <zlib.h>
37
38#ifdef WITHOUT_NLS
39#define getstr(n)	 errstr[n]
40#else
41#include <nl_types.h>
42
43extern nl_catd		 catalog;
44#define getstr(n)	 catgets(catalog, 1, n, errstr[n])
45#endif
46
47extern const char		*errstr[];
48
49#define VERSION		"2.5.1-FreeBSD"
50
51#define GREP_FIXED	0
52#define GREP_BASIC	1
53#define GREP_EXTENDED	2
54
55#define BINFILE_BIN	0
56#define BINFILE_SKIP	1
57#define BINFILE_TEXT	2
58
59#define FILE_STDIO	0
60#define FILE_GZIP	1
61#define FILE_BZIP	2
62
63#define DIR_GREP	0
64#define DIR_SKIP	1
65#define DIR_RECURSE	2
66
67#define DEV_GREP	0
68#define DEV_SKIP	1
69
70#define LINK_GREP	0
71#define LINK_EXPLICIT	1
72#define LINK_SKIP	2
73
74#define FILE_PAT	0
75#define DIR_PAT		1
76#define EXCL_PAT	0
77#define INCL_PAT	1
78
79#define MAX_LINE_MATCHES	32
80
81struct file {
82	struct mmfile	*mmf;
83	BZFILE		*bzf;
84	FILE		*f;
85	gzFile		*gzf;
86	bool		 binary;
87	bool		 stdin;
88};
89
90struct str {
91	off_t		 off;
92	size_t		 len;
93	char		*dat;
94	char		*file;
95	int		 line_no;
96};
97
98struct epat {
99	char		*pat;
100	int		 mode;
101	int		 type;
102};
103
104typedef struct {
105	size_t		 len;
106	unsigned char	*pattern;
107	int		 qsBc[UCHAR_MAX + 1];
108	/* flags */
109	bool		 bol;
110	bool		 eol;
111	bool		 reversed;
112} fastgrep_t;
113
114/* Flags passed to regcomp() and regexec() */
115extern int	 cflags, eflags;
116
117/* Command line flags */
118extern bool	 Eflag, Fflag, Gflag, Hflag, Lflag,
119		 bflag, cflag, hflag, iflag, lflag, mflag, nflag, oflag,
120		 qflag, sflag, vflag, wflag, xflag;
121extern bool	 exclflag, nullflag;
122extern unsigned long long Aflag, Bflag, mcount;
123extern char	*color, *label;
124extern int	 binbehave, devbehave, dirbehave, filebehave, grepbehave, linkbehave;
125
126extern bool	 first, matchall, notfound, prev;
127extern int	 tail;
128extern unsigned int epatterns, patterns;
129extern char    **pattern;
130extern struct epat *epattern;
131extern regex_t	*er_pattern, *r_pattern;
132extern fastgrep_t *fg_pattern;
133
134/* For regex errors  */
135#define RE_ERROR_BUF	512
136extern char	 re_error[RE_ERROR_BUF + 1];	/* Seems big enough */
137
138/* util.c */
139int	 procfile(const char *fn);
140int	 grep_tree(char **argv);
141void	*grep_malloc(size_t size);
142void	*grep_calloc(size_t nmemb, size_t size);
143void	*grep_realloc(void *ptr, size_t size);
144void	 printline(struct str *line, int sep, regmatch_t *matches, int m);
145
146/* queue.c */
147void	 enqueue(struct str *x);
148void	 printqueue(void);
149void	 clearqueue(void);
150
151/* file.c */
152void		 grep_close(struct file *f);
153struct file	*grep_stdin_open(void);
154struct file	*grep_open(const char *path);
155int		 grep_feof(struct file *f);
156int		 grep_fgetc(struct file *f);
157char		*grep_fgetln(struct file *f, size_t *len);
158
159/* fastgrep.c */
160int		 fastcomp(fastgrep_t *, const char *);
161void		 fgrepcomp(fastgrep_t *, const char *);
162int		 grep_search(fastgrep_t *, unsigned char *, size_t, regmatch_t *);
163