2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)extern.h 8.1 (Berkeley) 6/6/93
31 * $FreeBSD: src/usr.bin/tail/extern.h,v 1.4.6.2 2001/12/19 20:29:29 iedowse Exp $
32 * $DragonFly: src/usr.bin/tail/extern.h,v 1.6 2005/03/01 21:37:33 cpressey Exp $
35 #define WR(p, size) do { \
36 if (write(STDOUT_FILENO, p, size) != size) \
40 #define TAILMAPLEN (4<<20)
56 typedef struct file_info file_info_t
;
58 enum STYLE
{ FBYTES
, FLINES
, RBYTES
, RLINES
, REVERSE
};
60 void follow(file_info_t
*, enum STYLE
, off_t
);
61 void forward(FILE *, enum STYLE
, off_t
, struct stat
*);
62 void reverse(FILE *, enum STYLE
, off_t
, struct stat
*);
64 int display_bytes(FILE *, off_t
);
65 int display_lines(FILE *, off_t
);
69 int mapprint(struct mapinfo
*, off_t
, off_t
);
70 int maparound(struct mapinfo
*, off_t
);
71 void showfilename(int, const char *);
73 extern int Fflag
, fflag
, qflag
, rflag
, rval
, no_files
;
74 extern const char *fname
;