usr.bin/tset/misc.c

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   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.
  20  *
  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
  31  * SUCH DAMAGE.
  32  *
  33  * @(#)misc.c   8.1 (Berkeley) 6/9/93
  34  * $FreeBSD: src/usr.bin/tset/misc.c,v 1.4 1999/08/28 01:06:58 peter Exp $
  35  * $DragonFly: src/usr.bin/tset/misc.c,v 1.3 2003/10/04 20:36:53 hmp Exp $
  36  */
  37
  38 #include <fcntl.h>
  39 #include <err.h>
  40 #include <unistd.h>
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43 #include <string.h>
  44 #include "extern.h"
  45
  46 void
  47 cat(char *file)
  48 {
  49         register int fd, nr, nw;
  50         char buf[1024];
  51
  52         if ((fd = open(file, O_RDONLY, 0)) < 0)
  53                 err(1, "%s", file);
  54
  55         while ((nr = read(fd, buf, sizeof(buf))) > 0)
  56                 if ((nw = write(STDERR_FILENO, buf, nr)) == -1)
  57                         err(1, "write to stderr");
  58         if (nr != 0)
  59                 err(1, "%s", file);
  60         (void)close(fd);
  61 }
  62
  63 int
  64 outc(int c)
  65 {
  66         return putc(c, stderr);
  67 }