138 lines
3.8 KiB
C
138 lines
3.8 KiB
C
|
/*
|
||
|
* Copyright (c) 1988 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
|
||
|
char copyright[] =
|
||
|
"@(#) Copyright (c) 1988 Regents of the University of California.\n\
|
||
|
All rights reserved.\n";
|
||
|
#endif /* not lint */
|
||
|
|
||
|
#ifndef lint
|
||
|
static char sccsid[] = "@(#)tee.c 5.11 (Berkeley) 5/6/91";
|
||
|
#endif /* not lint */
|
||
|
|
||
|
#include <sys/types.h>
|
||
|
#include <sys/stat.h>
|
||
|
#include <fcntl.h>
|
||
|
#include <signal.h>
|
||
|
#include <unistd.h>
|
||
|
#include <stdio.h>
|
||
|
#include <stdlib.h>
|
||
|
#include <string.h>
|
||
|
|
||
|
typedef struct _list {
|
||
|
struct _list *next;
|
||
|
int fd;
|
||
|
char *name;
|
||
|
} LIST;
|
||
|
LIST *head;
|
||
|
|
||
|
main(argc, argv)
|
||
|
int argc;
|
||
|
char **argv;
|
||
|
{
|
||
|
extern int errno, optind;
|
||
|
register LIST *p;
|
||
|
register int n, fd, rval, wval;
|
||
|
register char *bp;
|
||
|
int append, ch, exitval;
|
||
|
char *buf;
|
||
|
off_t lseek();
|
||
|
|
||
|
append = 0;
|
||
|
while ((ch = getopt(argc, argv, "ai")) != EOF)
|
||
|
switch((char)ch) {
|
||
|
case 'a':
|
||
|
append = 1;
|
||
|
break;
|
||
|
case 'i':
|
||
|
(void)signal(SIGINT, SIG_IGN);
|
||
|
break;
|
||
|
case '?':
|
||
|
default:
|
||
|
(void)fprintf(stderr, "usage: tee [-ai] [file ...]\n");
|
||
|
exit(1);
|
||
|
}
|
||
|
argv += optind;
|
||
|
argc -= optind;
|
||
|
|
||
|
if (!(buf = malloc((u_int)8 * 1024))) {
|
||
|
(void)fprintf(stderr, "tee: out of space.\n");
|
||
|
exit(1);
|
||
|
}
|
||
|
add(STDOUT_FILENO, "stdout");
|
||
|
for (; *argv; ++argv)
|
||
|
if ((fd = open(*argv, append ? O_WRONLY|O_CREAT|O_APPEND :
|
||
|
O_WRONLY|O_CREAT|O_TRUNC, DEFFILEMODE)) < 0)
|
||
|
(void)fprintf(stderr, "tee: %s: %s.\n",
|
||
|
*argv, strerror(errno));
|
||
|
else
|
||
|
add(fd, *argv);
|
||
|
exitval = 0;
|
||
|
while ((rval = read(STDIN_FILENO, buf, sizeof(buf))) > 0)
|
||
|
for (p = head; p; p = p->next) {
|
||
|
n = rval;
|
||
|
bp = buf;
|
||
|
do {
|
||
|
if ((wval = write(p->fd, bp, n)) == -1) {
|
||
|
(void)fprintf(stderr, "tee: %s: %s.\n",
|
||
|
p->name, strerror(errno));
|
||
|
exitval = 1;
|
||
|
break;
|
||
|
}
|
||
|
bp += wval;
|
||
|
} while (n -= wval);
|
||
|
}
|
||
|
if (rval < 0) {
|
||
|
(void)fprintf(stderr, "tee: read: %s\n", strerror(errno));
|
||
|
exit(1);
|
||
|
}
|
||
|
exit(exitval);
|
||
|
}
|
||
|
|
||
|
add(fd, name)
|
||
|
int fd;
|
||
|
char *name;
|
||
|
{
|
||
|
LIST *p;
|
||
|
|
||
|
if (!(p = malloc((u_int)sizeof(LIST)))) {
|
||
|
(void)fprintf(stderr, "tee: out of space.\n");
|
||
|
exit(1);
|
||
|
}
|
||
|
p->fd = fd;
|
||
|
p->name = name;
|
||
|
p->next = head;
|
||
|
head = p;
|
||
|
}
|