1 /* $OpenBSD: grep.h,v 1.15 2010/04/05 03:03:55 tedu Exp $ */ 2 /* $FreeBSD$ */ 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 43 extern nl_catd catalog; 44 #define getstr(n) catgets(catalog, 1, n, errstr[n]) 45 #endif 46 47 extern 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 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 81 struct file { 82 struct mmfile *mmf; 83 BZFILE *bzf; 84 FILE *f; 85 gzFile *gzf; 86 bool binary; 87 bool stdin; 88 }; 89 90 struct str { 91 off_t off; 92 size_t len; 93 char *dat; 94 char *file; 95 int line_no; 96 }; 97 98 struct epat { 99 char *pat; 100 int mode; 101 int type; 102 }; 103 104 typedef 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() */ 115 extern int cflags, eflags; 116 117 /* Command line flags */ 118 extern bool Eflag, Fflag, Gflag, Hflag, Lflag, 119 bflag, cflag, hflag, iflag, lflag, mflag, nflag, oflag, 120 qflag, sflag, vflag, wflag, xflag; 121 extern bool exclflag, nullflag; 122 extern unsigned long long Aflag, Bflag, mcount; 123 extern char *label; 124 extern const char *color; 125 extern int binbehave, devbehave, dirbehave, filebehave, grepbehave, linkbehave; 126 127 extern bool first, matchall, notfound, prev; 128 extern int tail; 129 extern unsigned int epatterns, patterns; 130 extern char **pattern; 131 extern struct epat *epattern; 132 extern regex_t *er_pattern, *r_pattern; 133 extern fastgrep_t *fg_pattern; 134 135 /* For regex errors */ 136 #define RE_ERROR_BUF 512 137 extern char re_error[RE_ERROR_BUF + 1]; /* Seems big enough */ 138 139 /* util.c */ 140 int procfile(const char *fn); 141 int grep_tree(char **argv); 142 void *grep_malloc(size_t size); 143 void *grep_calloc(size_t nmemb, size_t size); 144 void *grep_realloc(void *ptr, size_t size); 145 void printline(struct str *line, int sep, regmatch_t *matches, int m); 146 147 /* queue.c */ 148 void enqueue(struct str *x); 149 void printqueue(void); 150 void clearqueue(void); 151 152 /* file.c */ 153 void grep_close(struct file *f); 154 struct file *grep_stdin_open(void); 155 struct file *grep_open(const char *path); 156 int grep_feof(struct file *f); 157 int grep_fgetc(struct file *f); 158 char *grep_fgetln(struct file *f, size_t *len); 159 160 /* fastgrep.c */ 161 int fastcomp(fastgrep_t *, const char *); 162 void fgrepcomp(fastgrep_t *, const char *); 163 int grep_search(fastgrep_t *, unsigned char *, size_t, regmatch_t *); 164