144 lines
3.7 KiB
C
144 lines
3.7 KiB
C
/*
|
|
* Copyright (c) 1988, 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char copyright[] =
|
|
"@(#) Copyright (c) 1988, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)tee.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <err.h>
|
|
#include <fcntl.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
typedef struct _list {
|
|
struct _list *next;
|
|
int fd;
|
|
const char *name;
|
|
} LIST;
|
|
LIST *head;
|
|
|
|
void add(int, const char *);
|
|
static void usage(void);
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
LIST *p;
|
|
int n, fd, rval, wval;
|
|
char *bp;
|
|
int append, ch, exitval;
|
|
char *buf;
|
|
#define BSIZE (8 * 1024)
|
|
|
|
append = 0;
|
|
while ((ch = getopt(argc, argv, "ai")) != -1)
|
|
switch((char)ch) {
|
|
case 'a':
|
|
append = 1;
|
|
break;
|
|
case 'i':
|
|
(void)signal(SIGINT, SIG_IGN);
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
argv += optind;
|
|
argc -= optind;
|
|
|
|
if ((buf = malloc(BSIZE)) == NULL)
|
|
err(1, "malloc");
|
|
|
|
add(STDOUT_FILENO, "stdout");
|
|
|
|
for (exitval = 0; *argv; ++argv)
|
|
if ((fd = open(*argv, append ? O_WRONLY|O_CREAT|O_APPEND :
|
|
O_WRONLY|O_CREAT|O_TRUNC, DEFFILEMODE)) < 0) {
|
|
warn("%s", *argv);
|
|
exitval = 1;
|
|
} else
|
|
add(fd, *argv);
|
|
|
|
while ((rval = read(STDIN_FILENO, buf, BSIZE)) > 0)
|
|
for (p = head; p; p = p->next) {
|
|
n = rval;
|
|
bp = buf;
|
|
do {
|
|
if ((wval = write(p->fd, bp, n)) == -1) {
|
|
warn("%s", p->name);
|
|
exitval = 1;
|
|
break;
|
|
}
|
|
bp += wval;
|
|
} while (n -= wval);
|
|
}
|
|
if (rval < 0)
|
|
err(1, "read");
|
|
exit(exitval);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr, "usage: tee [-ai] [file ...]\n");
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
add(int fd, const char *name)
|
|
{
|
|
LIST *p;
|
|
|
|
if ((p = malloc(sizeof(LIST))) == NULL)
|
|
err(1, "malloc");
|
|
p->fd = fd;
|
|
p->name = name;
|
|
p->next = head;
|
|
head = p;
|
|
}
|