1 /* $OpenBSD: grep.h,v 1.19 2013/11/26 13:21:16 deraadt Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 James Howard and Dag-Erling Co�dan Sm�rgrav 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 #ifndef __minix 31 #include <sys/limits.h> 32 #else 33 #include <limits.h> 34 #endif /* __minix */ 35 36 #include <regex.h> 37 #include <stdio.h> 38 #include <zlib.h> 39 40 #define VER_MAJ 0 41 #define VER_MIN 9 42 43 #define BIN_FILE_BIN 0 44 #define BIN_FILE_SKIP 1 45 #define BIN_FILE_TEXT 2 46 47 typedef struct { 48 size_t len; 49 int line_no; 50 off_t off; 51 const char *file; 52 char *dat; 53 } str_t; 54 55 typedef struct { 56 unsigned char *pattern; 57 int patternLen; 58 int qsBc[UCHAR_MAX + 1]; 59 /* flags */ 60 int bol; 61 int eol; 62 int wmatch; 63 int reversedSearch; 64 } fastgrep_t; 65 66 /* Flags passed to regcomp() and regexec() */ 67 extern int cflags, eflags; 68 69 /* Command line flags */ 70 extern int Aflag, Bflag, Eflag, Fflag, Gflag, Hflag, Lflag, 71 Rflag, Zflag, 72 bflag, cflag, hflag, iflag, lflag, nflag, oflag, qflag, sflag, 73 vflag, wflag, xflag; 74 extern int binbehave; 75 76 extern int first, matchall, patterns, tail, file_err; 77 extern char **pattern; 78 extern fastgrep_t *fg_pattern; 79 extern regex_t *r_pattern; 80 81 /* For regex errors */ 82 #define RE_ERROR_BUF 512 83 extern char re_error[RE_ERROR_BUF + 1]; /* Seems big enough */ 84 85 /* util.c */ 86 int procfile(const char *fn); 87 int grep_tree(char **argv); 88 void *grep_malloc(size_t size); 89 void *grep_calloc(size_t nmemb, size_t size); 90 void *grep_realloc(void *ptr, size_t size); 91 void printline(str_t *line, int sep, regmatch_t *pmatch); 92 int fastcomp(fastgrep_t *, const char *); 93 void fgrepcomp(fastgrep_t *, const unsigned char *); 94 95 /* queue.c */ 96 void initqueue(void); 97 void enqueue(str_t *x); 98 void printqueue(void); 99 void clearqueue(void); 100 101 /* mmfile.c */ 102 typedef struct mmfile { 103 int fd; 104 size_t len; 105 char *base, *end, *ptr; 106 } mmf_t; 107 108 mmf_t *mmopen(const char *fn, const char *mode); 109 void mmclose(mmf_t *mmf); 110 char *mmfgetln(mmf_t *mmf, size_t *l); 111 112 /* file.c */ 113 struct file; 114 typedef struct file file_t; 115 116 file_t *grep_fdopen(int fd, const char *mode); 117 file_t *grep_open(const char *path, const char *mode); 118 int grep_bin_file(file_t *f); 119 char *grep_fgetln(file_t *f, size_t *l); 120 void grep_close(file_t *f); 121 122 /* binary.c */ 123 int bin_file(FILE * f); 124 int gzbin_file(gzFile * f); 125 int mmbin_file(mmf_t *f); 126 127