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grep.h revision 1.1.1.2 
      1 /*	$NetBSD: grep.h,v 1.1.1.2 2004/01/02 15:00:34 cjep Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 James Howard and Dag-Erling Codan Smrgrav
      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 #include <sys/types.h>
     30 
     31 #include <regex.h>
     32 #include <stdio.h>
     33 #include <zlib.h>
     34 
     35 #define VERSION "20031230"
     36 
     37 #define	GREP_READ	0
     38 #define GREP_SKIP	1
     39 #define GREP_RECURSE	2
     40 
     41 #define BIN_FILE_BIN	0
     42 #define BIN_FILE_SKIP	1
     43 #define BIN_FILE_TEXT	2
     44 
     45 #define LINK_EXPLICIT	0
     46 #define LINK_FOLLOW	1
     47 #define LINK_SKIP	2
     48 
     49 #define MAX_LINE_MATCHES	30
     50 
     51 typedef struct {
     52 	size_t len;
     53 	int line_no;
     54 	int off;
     55 	char *file;
     56 	char *dat;
     57 } str_t;
     58 
     59 /* Flags passed to regcomp() and regexec() */
     60 extern int cflags, eflags;
     61 
     62 /* Command line flags */
     63 extern int Aflag, Bflag, Fflag, Lflag, bflag, cflag, lflag, mflag,
     64 	nflag, oflag, qflag, sflag, vflag, wflag, xflag;
     65 
     66 extern int colours;
     67 extern const char *grep_colour;
     68 extern char fn_endchar, fn_colonchar, fn_dashchar;
     69 extern char line_endchar;
     70 
     71 extern int output_filenames;
     72 
     73 extern int maxcount;
     74 
     75 /* Argv[0] flags */
     76 extern int zgrep;
     77 
     78 extern int binbehave, dirbehave, devbehave;
     79 /* extern int linkbehave; */
     80 extern char *stdin_label;
     81 
     82 extern int first, matchall, patterns, tail;
     83 extern char **pattern;
     84 extern regex_t *r_pattern;
     85 
     86 /*
     87  * For regex errors, 512 seems to be big enough
     88  */
     89 #define RE_ERROR_BUF 	512
     90 
     91 extern char re_error[RE_ERROR_BUF + 1];
     92 
     93 /* util.c */
     94 int procfile(char *fn);
     95 int grep_tree(char **argv);
     96 
     97 void *grep_malloc(size_t size);
     98 void *grep_realloc(void *ptr, size_t size);
     99 void printline(str_t *line, int sep, regmatch_t *matches, int m);
    100 
    101 /* queue.c */
    102 void initqueue(void);
    103 void enqueue(str_t *x);
    104 void printqueue(void);
    105 void clearqueue(void);
    106 
    107 /* mmfile.c */
    108 typedef struct mmfile {
    109 	int fd;
    110 	size_t len;
    111 	char *base, *end, *ptr;
    112 } mmf_t;
    113 
    114 mmf_t *mmopen(char *fn, char *mode);
    115 void mmclose(mmf_t *mmf);
    116 char *mmfgetln(mmf_t *mmf, size_t *l);
    117 void mmrewind(mmf_t *mmf);
    118 
    119 /* file.c */
    120 struct file;
    121 typedef struct file file_t;
    122 
    123 file_t *grep_fdopen(int fd, char *mode);
    124 file_t *grep_open(char *path, char *mode);
    125 
    126 int grep_bin_file(file_t *f);
    127 char *grep_fgetln(file_t *f, size_t *l);
    128 void grep_close(file_t *f);
    129 
    130 /* binary.c */
    131 int bin_file(FILE * f);
    132 int gzbin_file(gzFile * f);
    133 int mmbin_file(mmf_t *f);
    134 
    135