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95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/*
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* Copyright (c) 1988 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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/*static char *sccsid = "from: @(#)isatty.c 5.6 (Berkeley) 2/23/91";*/
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static char *rcsid = "$Id$";
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#endif /* LIBC_SCCS and not lint */
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#include <pthread.h>
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#ifdef sunos4
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#include <sys/termio.h>
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#else
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#include <termios.h>
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#endif
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#include <unistd.h>
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/*
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* If TIOCGETA is not defined try TCGETATTR
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* If TCGETATTR is not defined try TCGETA
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* If that doesn't work try getting it from termio.h
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*/
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#ifndef TIOCGETA
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#ifdef TCGETATTR
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#define TIOCGETA TCGETATTR
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#else
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#ifndef TCGETA
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#include <termio.h>
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#endif
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#ifndef TIOCGETA
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#define TIOCGETA TCGETA
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#endif
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#endif
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#endif
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/* fd is the real fd to pass to the kernel */
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int isatty_basic(int fd)
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{
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#ifdef sunos4
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struct termio t;
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#else /* !sunos4 */
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struct termios t;
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#endif /* sunos4 */
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return (machdep_sys_ioctl(fd,
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#ifdef sunos4
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TCGETA,
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#else /* !sunos4 */
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TIOCGETA,
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#endif /* sunos4 */
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&t) ? 0 : 1);
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}
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int isatty(int fd)
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{
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int ret;
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if ((ret = fd_lock(fd, FD_READ, NULL)) == OK) {
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ret = isatty_basic(fd_table[fd]->fd.i);
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fd_unlock(fd, FD_READ);
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} else {
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/* Return 0 or 1 */
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ret = 0;
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}
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return(ret);
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}
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