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- /*
- * 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;
- }
-