grep.h revision 211496 
1/*	$OpenBSD: grep.h,v 1.15 2010/04/05 03:03:55 tedu Exp $	*/
2/*	$FreeBSD: head/usr.bin/grep/grep.h 211496 2010-08-19 09:28:59Z des $	*/
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_READ	0
64#define DIR_SKIP	1
65#define DIR_RECURSE	2
66
67#define DEV_READ	0
68#define DEV_SKIP	1
69
70#define LINK_READ	0
71#define LINK_EXPLICIT	1
72#define LINK_SKIP	2
73
74#define EXCL_PAT	0
75#define INCL_PAT	1
76
77#define MAX_LINE_MATCHES	32
78
79struct file {
80	int		 fd;
81	bool		 binary;
82};
83
84struct str {
85	off_t		 off;
86	size_t		 len;
87	char		*dat;
88	char		*file;
89	int		 line_no;
90};
91
92struct epat {
93	char		*pat;
94	int		 mode;
95};
96
97typedef struct {
98	size_t		 len;
99	unsigned char	*pattern;
100	int		 qsBc[UCHAR_MAX + 1];
101	/* flags */
102	bool		 bol;
103	bool		 eol;
104	bool		 reversed;
105} fastgrep_t;
106
107/* Flags passed to regcomp() and regexec() */
108extern int	 cflags, eflags;
109
110/* Command line flags */
111extern bool	 Eflag, Fflag, Gflag, Hflag, Lflag,
112		 bflag, cflag, hflag, iflag, lflag, mflag, nflag, oflag,
113		 qflag, sflag, vflag, wflag, xflag;
114extern bool	 dexclude, dinclude, fexclude, finclude, lbflag, nullflag;
115extern unsigned long long Aflag, Bflag, mcount;
116extern char	*label;
117extern const char *color;
118extern int	 binbehave, devbehave, dirbehave, filebehave, grepbehave, linkbehave;
119
120extern bool	 first, matchall, notfound, prev;
121extern int	 tail;
122extern unsigned int dpatterns, fpatterns, patterns;
123extern char    **pattern;
124extern struct epat *dpattern, *fpattern;
125extern regex_t	*er_pattern, *r_pattern;
126extern fastgrep_t *fg_pattern;
127
128/* For regex errors  */
129#define RE_ERROR_BUF	512
130extern char	 re_error[RE_ERROR_BUF + 1];	/* Seems big enough */
131
132/* util.c */
133bool	 file_matching(const char *fname);
134int	 procfile(const char *fn);
135int	 grep_tree(char **argv);
136void	*grep_malloc(size_t size);
137void	*grep_calloc(size_t nmemb, size_t size);
138void	*grep_realloc(void *ptr, size_t size);
139char	*grep_strdup(const char *str);
140void	 printline(struct str *line, int sep, regmatch_t *matches, int m);
141
142/* queue.c */
143void	 enqueue(struct str *x);
144void	 printqueue(void);
145void	 clearqueue(void);
146
147/* file.c */
148void		 grep_close(struct file *f);
149struct file	*grep_open(const char *path);
150char		*grep_fgetln(struct file *f, size_t *len);
151
152/* fastgrep.c */
153int		 fastcomp(fastgrep_t *, const char *);
154void		 fgrepcomp(fastgrep_t *, const char *);
155int		 grep_search(fastgrep_t *, const unsigned char *, size_t, regmatch_t *);
156