File: [local] / src / usr.bin / tail / extern.h (download)
Revision 1.10, Fri Oct 17 11:38:20 2008 UTC (15 years, 7 months ago) by landry
Branch: MAIN
Changes since 1.9: +2 -1 lines
Permit tail -f to follow multiple files, useful when you want to monitor
several logfiles in a single terminal. split forward() and move the
corresponding -rewritten- code to follow().
Closes PR 5092.
ok millert@ gilles@ sobrado@
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/* $OpenBSD: extern.h,v 1.10 2008/10/17 11:38:20 landry Exp $ */
/* $NetBSD: extern.h,v 1.3 1994/11/23 07:42:00 jtc Exp $ */
/*-
* 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. 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
*/
#define WR(p, size) \
if (write(STDOUT_FILENO, p, size) != size) \
oerr();
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 *);
void follow(char **, int, enum STYLE, off_t);
int bytes(FILE *, off_t);
int lines(FILE *, off_t);
void ierr(void);
void oerr(void);
extern int fflag, rflag, rval;
extern char *fname;
extern int is_stdin;