2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * @(#)extern.h 8.1 (Berkeley) 6/6/93
36 #define WR(p, size) do { \
38 res = write(STDOUT_FILENO, p, size); \
39 if (res != (ssize_t)size) { \
47 #define TAILMAPLEN (4<<20)
59 const char *file_name;
63 typedef struct file_info file_info_t;
65 enum STYLE { NOTSET = 0, FBYTES, FLINES, RBYTES, RLINES, REVERSE };
67 void follow(file_info_t *, enum STYLE, off_t);
68 void forward(FILE *, const char *, enum STYLE, off_t, struct stat *);
69 void reverse(FILE *, const char *, enum STYLE, off_t, struct stat *);
71 int bytes(FILE *, const char *, off_t);
72 int lines(FILE *, const char *, off_t);
74 void ierr(const char *);
76 int mapprint(struct mapinfo *, off_t, off_t);
77 int maparound(struct mapinfo *, off_t);
78 void printfn(const char *, int);
80 extern int Fflag, fflag, qflag, rflag, rval, no_files, vflag;
81 extern fileargs_t *fa;