1 /* $OpenBSD: grep.h,v 1.29 2022/06/26 10:57:36 op 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 #include <sys/stat.h> 31 32 #include <limits.h> 33 #include <regex.h> 34 #include <stdint.h> 35 #include <stdio.h> 36 #include <zlib.h> 37 38 #define VER_MAJ 0 39 #define VER_MIN 9 40 41 #define BIN_FILE_BIN 0 42 #define BIN_FILE_SKIP 1 43 #define BIN_FILE_TEXT 2 44 45 typedef struct { 46 size_t len; 47 long long line_no; 48 off_t off; 49 char *file; 50 char *dat; 51 } str_t; 52 53 typedef struct { 54 unsigned char *pattern; 55 int patternLen; 56 int qsBc[UCHAR_MAX + 1]; 57 /* flags */ 58 int bol; 59 int eol; 60 int wmatch; 61 int reversedSearch; 62 } fastgrep_t; 63 64 /* Flags passed to regcomp() and regexec() */ 65 extern int cflags, eflags; 66 67 /* Command line flags */ 68 extern int Aflag, Bflag, Eflag, Fflag, Hflag, Lflag, 69 Rflag, Zflag, 70 bflag, cflag, hflag, iflag, lflag, mflag, nflag, oflag, qflag, 71 sflag, vflag, wflag, xflag, nullflag; 72 extern int binbehave; 73 extern const char *labelname; 74 75 extern int first, matchall, patterns, tail, file_err; 76 extern char **pattern; 77 extern fastgrep_t *fg_pattern; 78 extern regex_t *r_pattern; 79 80 /* For -m max-count */ 81 extern long long mcount, mlimit; 82 83 /* For regex errors */ 84 #define RE_ERROR_BUF 512 85 extern char re_error[RE_ERROR_BUF + 1]; /* Seems big enough */ 86 87 /* util.c */ 88 int procfile(char *fn); 89 int grep_tree(char **argv); 90 void *grep_malloc(size_t size); 91 void *grep_calloc(size_t nmemb, size_t size); 92 void *grep_realloc(void *ptr, size_t size); 93 void *grep_reallocarray(void *ptr, size_t nmemb, size_t size); 94 void printline(str_t *line, int sep, regmatch_t *pmatch); 95 int fastcomp(fastgrep_t *, const char *); 96 void fgrepcomp(fastgrep_t *, const unsigned char *); 97 98 /* queue.c */ 99 void initqueue(void); 100 void enqueue(str_t *x); 101 void printqueue(void); 102 void clearqueue(void); 103 104 /* mmfile.c */ 105 typedef struct mmfile { 106 int fd; 107 size_t len; 108 char *base, *end, *ptr; 109 } mmf_t; 110 111 mmf_t *mmopen(int fd, struct stat *sb); 112 void mmclose(mmf_t *mmf); 113 char *mmfgetln(mmf_t *mmf, size_t *l); 114 115 /* file.c */ 116 struct file; 117 typedef struct file file_t; 118 119 file_t *grep_fdopen(int fd); 120 file_t *grep_open(char *path); 121 int grep_bin_file(file_t *f); 122 char *grep_fgetln(file_t *f, size_t *l); 123 void grep_close(file_t *f); 124 125 /* binary.c */ 126 int bin_file(FILE * f); 127 int gzbin_file(gzFile f); 128 int mmbin_file(mmf_t *f); 129 130