mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/*-
|
|
* Copyright (c) 1991, 1993
|
|
* The Regents of the University of California. 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)extern.h 8.1 (Berkeley) 6/6/93
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#define WR(p, size) do { \
|
|
if (write(STDOUT_FILENO, p, size) != (ssize_t)size) \
|
|
oerr(); \
|
|
} while(0)
|
|
|
|
#define TAILMAPLEN (4<<20)
|
|
|
|
struct mapinfo {
|
|
off_t mapoff;
|
|
off_t maxoff;
|
|
size_t maplen;
|
|
char *start;
|
|
int fd;
|
|
};
|
|
|
|
enum STYLE { NOTSET = 0, FBYTES, FLINES, RBYTES, RLINES, REVERSE };
|
|
|
|
void forward(FILE *, enum STYLE, off_t, struct stat *);
|
|
void reverse(FILE *, enum STYLE, off_t, struct stat *);
|
|
|
|
int bytes(FILE *, off_t);
|
|
int lines(FILE *, off_t);
|
|
|
|
void ierr(void);
|
|
void oerr(void);
|
|
int mapprint(struct mapinfo *, off_t, off_t);
|
|
int maparound(struct mapinfo *, off_t);
|
|
|
|
extern int Fflag, fflag, rflag, rval;
|
|
extern const char *fname;
|