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 Coïdan Smørgrav 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 EXCL_PAT 0 75 #define INCL_PAT 1 76 77 #define MAX_LINE_MATCHES 32 78 79 struct file { 80 int fd; 81 bool binary; 82 }; 83 84 struct str { 85 off_t off; 86 size_t len; 87 char *dat; 88 char *file; 89 int line_no; 90 }; 91 92 struct epat { 93 char *pat; 94 int mode; 95 }; 96 97 typedef 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 bool word; 106 } fastgrep_t; 107 108 /* Flags passed to regcomp() and regexec() */ 109 extern int cflags, eflags; 110 111 /* Command line flags */ 112 extern bool Eflag, Fflag, Gflag, Hflag, Lflag, 113 bflag, cflag, hflag, iflag, lflag, mflag, nflag, oflag, 114 qflag, sflag, vflag, wflag, xflag; 115 extern bool dexclude, dinclude, fexclude, finclude, lbflag, nullflag; 116 extern unsigned long long Aflag, Bflag, mcount; 117 extern char *label; 118 extern const char *color; 119 extern int binbehave, devbehave, dirbehave, filebehave, grepbehave, linkbehave; 120 121 extern bool first, matchall, notfound, prev; 122 extern int tail; 123 extern unsigned int dpatterns, fpatterns, patterns; 124 extern char **pattern; 125 extern struct epat *dpattern, *fpattern; 126 extern regex_t *er_pattern, *r_pattern; 127 extern fastgrep_t *fg_pattern; 128 129 /* For regex errors */ 130 #define RE_ERROR_BUF 512 131 extern char re_error[RE_ERROR_BUF + 1]; /* Seems big enough */ 132 133 /* util.c */ 134 bool file_matching(const char *fname); 135 int procfile(const char *fn); 136 int grep_tree(char **argv); 137 void *grep_malloc(size_t size); 138 void *grep_calloc(size_t nmemb, size_t size); 139 void *grep_realloc(void *ptr, size_t size); 140 char *grep_strdup(const char *str); 141 void printline(struct str *line, int sep, regmatch_t *matches, int m); 142 143 /* queue.c */ 144 void enqueue(struct str *x); 145 void printqueue(void); 146 void clearqueue(void); 147 148 /* file.c */ 149 void grep_close(struct file *f); 150 struct file *grep_open(const char *path); 151 char *grep_fgetln(struct file *f, size_t *len); 152 153 /* fastgrep.c */ 154 int fastcomp(fastgrep_t *, const char *); 155 void fgrepcomp(fastgrep_t *, const char *); 156 int grep_search(fastgrep_t *, const unsigned char *, size_t, regmatch_t *); 157