/* * Copyright (c) 1988 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that: (1) source distributions retain this entire copyright * notice and comment, and (2) distributions including binaries display * the following acknowledgement: ``This product includes software * developed by the University of California, Berkeley and its contributors'' * in the documentation or other materials provided with the distribution * and in all advertising materials mentioning features or use of this * software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #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 5.10 (Berkeley) 6/1/90"; #endif /* not lint */ #include <sys/types.h> #include <sys/file.h> #include <signal.h> #include <stdio.h> #include <unistd.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, *malloc(), *strerror(); 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, 0600)) < 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; char *malloc(), *strerror(); /* NOSTRICT */ if (!(p = (LIST *)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; }