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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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
33 * @(#)extern.h 8.1 (Berkeley) 6/6/93
35 * $FreeBSD: src/usr.bin/tail/extern.h,v 1.4.6.2 2001/12/19 20:29:29 iedowse Exp $
36 * $DragonFly: src/usr.bin/tail/extern.h,v 1.6 2005/03/01 21:37:33 cpressey Exp $
39 #define WR(p, size) do { \
40 if (write(STDOUT_FILENO, p, size) != size) \
44 #define TAILMAPLEN (4<<20)
60 typedef struct file_info file_info_t;
62 enum STYLE { FBYTES, FLINES, RBYTES, RLINES, REVERSE };
64 void follow(file_info_t *, enum STYLE, off_t);
65 void forward(FILE *, enum STYLE, off_t, struct stat *);
66 void reverse(FILE *, enum STYLE, off_t, struct stat *);
68 int display_bytes(FILE *, off_t);
69 int display_lines(FILE *, off_t);
73 int mapprint(struct mapinfo *, off_t, off_t);
74 int maparound(struct mapinfo *, off_t);
75 void showfilename(int, const char *);
77 extern int Fflag, fflag, rflag, rval, no_files;
78 extern const char *fname;