NetBSD/lib/libc/gen/ttyslot.c

78 lines
2.4 KiB
C

/* $NetBSD: ttyslot.c,v 1.11 2003/08/07 16:42:58 agc Exp $ */
/*
* 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. 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.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)ttyslot.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: ttyslot.c,v 1.11 2003/08/07 16:42:58 agc Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <ttyent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef __weak_alias
__weak_alias(ttyslot,_ttyslot)
#endif
int
ttyslot()
{
struct ttyent *ttyp;
int slot;
char *p;
int cnt;
char *name;
setttyent();
for (cnt = 0; cnt < 3; ++cnt)
if ((name = ttyname(cnt)) != NULL) {
if ((p = strrchr(name, '/')) != NULL)
++p;
else
p = name;
for (slot = 1; (ttyp = getttyent()) != NULL; ++slot)
if (!strcmp(ttyp->ty_name, p)) {
endttyent();
return(slot);
}
break;
}
endttyent();
return(0);
}