1 /* $NetBSD: grep.h,v 1.5 2011/02/27 17:33:37 joerg Exp $ */ 2 /* $OpenBSD: grep.h,v 1.15 2010/04/05 03:03:55 tedu Exp $ */ 3 /* $FreeBSD$ */ 4 5 /*- 6 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 7 * 8 * Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav 9 * Copyright (c) 2008-2009 Gabor Kovesdan <gabor@FreeBSD.org> 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <bzlib.h> 35 #include <limits.h> 36 #include <regex.h> 37 #include <stdbool.h> 38 #include <stdio.h> 39 #include <zlib.h> 40 41 #ifndef WITHOUT_FASTMATCH 42 #include "fastmatch.h" 43 #endif 44 45 #ifdef WITHOUT_NLS 46 #define getstr(n) errstr[n] 47 #else 48 #include <nl_types.h> 49 50 extern nl_catd catalog; 51 #define getstr(n) catgets(catalog, 1, n, errstr[n]) 52 #endif 53 54 extern const char *errstr[]; 55 56 #define VERSION "2.6.0-FreeBSD" 57 58 #define GREP_FIXED 0 59 #define GREP_BASIC 1 60 #define GREP_EXTENDED 2 61 62 #if !defined(REG_NOSPEC) && !defined(REG_LITERAL) 63 #define WITH_INTERNAL_NOSPEC 64 #endif 65 66 #define BINFILE_BIN 0 67 #define BINFILE_SKIP 1 68 #define BINFILE_TEXT 2 69 70 #define FILE_STDIO 0 71 #define FILE_MMAP 1 72 #define FILE_GZIP 2 73 #define FILE_BZIP 3 74 #define FILE_XZ 4 75 #define FILE_LZMA 5 76 77 #define DIR_READ 0 78 #define DIR_SKIP 1 79 #define DIR_RECURSE 2 80 81 #define DEV_READ 0 82 #define DEV_SKIP 1 83 84 #define LINK_READ 0 85 #define LINK_EXPLICIT 1 86 #define LINK_SKIP 2 87 88 #define EXCL_PAT 0 89 #define INCL_PAT 1 90 91 #define MAX_MATCHES 32 92 93 struct file { 94 int fd; 95 bool binary; 96 }; 97 98 struct str { 99 off_t boff; 100 off_t off; 101 size_t len; 102 char *dat; 103 char *file; 104 int line_no; 105 }; 106 107 struct pat { 108 char *pat; 109 int len; 110 }; 111 112 struct epat { 113 char *pat; 114 int mode; 115 }; 116 117 /* Flags passed to regcomp() and regexec() */ 118 extern int cflags, eflags; 119 120 /* Command line flags */ 121 extern bool Eflag, Fflag, Gflag, Hflag, Lflag, 122 bflag, cflag, hflag, iflag, lflag, mflag, nflag, oflag, 123 qflag, sflag, vflag, wflag, xflag; 124 extern bool dexclude, dinclude, fexclude, finclude, lbflag, nullflag; 125 extern long long Aflag, Bflag; 126 extern long long mcount; 127 extern long long mlimit; 128 extern char fileeol; 129 extern char *label; 130 extern const char *color; 131 extern int binbehave, devbehave, dirbehave, filebehave, grepbehave, linkbehave; 132 133 extern bool file_err, matchall; 134 extern unsigned int dpatterns, fpatterns, patterns; 135 extern struct pat *pattern; 136 extern struct epat *dpattern, *fpattern; 137 extern regex_t *er_pattern, *r_pattern; 138 #ifndef WITHOUT_FASTMATCH 139 extern fastmatch_t *fg_pattern; 140 #endif 141 142 /* For regex errors */ 143 #define RE_ERROR_BUF 512 144 extern char re_error[RE_ERROR_BUF + 1]; /* Seems big enough */ 145 146 /* util.c */ 147 bool file_matching(const char *fname); 148 int procfile(const char *fn); 149 int grep_tree(char **argv); 150 void *grep_malloc(size_t size); 151 void *grep_calloc(size_t nmemb, size_t size); 152 void *grep_realloc(void *ptr, size_t size); 153 char *grep_strdup(const char *str); 154 void grep_printline(struct str *line, int sep); 155 156 /* queue.c */ 157 bool enqueue(struct str *x); 158 void printqueue(void); 159 void clearqueue(void); 160 161 /* file.c */ 162 void grep_close(struct file *f); 163 struct file *grep_open(const char *path); 164 char *grep_fgetln(struct file *f, size_t *len); 165