/*-
 * Copyright (c) 1999 James Howard
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <regex.h>
#include <stdio.h>
#include <zlib.h>

#define VER_MAJ 0
#define VER_MIN 3

typedef struct {
    size_t len;
    int line_no;
    int off;
    char *dat;
    char *file;
} str_t;

/*  Useful stuff from elsewhere... */
extern char *__progname;

/*  Flags passed to regcomp() and regexec() */
extern int cflags, eflags;

/*  Command line flags */
extern int Lflag, Zflag, aflag, bflag, cflag, hflag, lflag, nflag, qflag, sflag, vflag, wflag, xflag;

extern int patterns;

extern char *pattern;

extern regex_t *pat;

/*  For regex errors  */
#define RE_ERROR_BUF 512
extern char re_error[RE_ERROR_BUF + 1];   /*  Seems big enough */

int bin_file(FILE *f);
int gzbin_file(gzFile *f);
char *gzfgetln(gzFile *f, size_t *len);
int gzseekable(gzFile *f);
int procfile(char *fn);
int procline(str_t ln);
int seekable(FILE *f);
void usage(void);
void *grep_malloc(size_t size);
void *grep_realloc(void *ptr, size_t size);
