Annotation of src/lib/libc/gen/ttyslot.c, Revision 1.6
1.6 ! christos 1: /* $NetBSD: ttyslot.c,v 1.5 1995/02/27 05:55:04 cgd Exp $ */
1.5 cgd 2:
1.1 cgd 3: /*
1.5 cgd 4: * Copyright (c) 1988, 1993
5: * The Regents of the University of California. All rights reserved.
1.1 cgd 6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by the University of
18: * California, Berkeley and its contributors.
19: * 4. Neither the name of the University nor the names of its contributors
20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: */
35:
1.6 ! christos 36: #include <sys/cdefs.h>
1.1 cgd 37: #if defined(LIBC_SCCS) && !defined(lint)
1.5 cgd 38: #if 0
39: static char sccsid[] = "@(#)ttyslot.c 8.1 (Berkeley) 6/4/93";
40: #else
1.6 ! christos 41: __RCSID("$NetBSD$");
1.5 cgd 42: #endif
1.1 cgd 43: #endif /* LIBC_SCCS and not lint */
44:
45: #include <ttyent.h>
46: #include <stdio.h>
47: #include <string.h>
48: #include <unistd.h>
49:
50: int
51: ttyslot()
52: {
53: register struct ttyent *ttyp;
54: register int slot;
55: register char *p;
56: int cnt;
57: char *name;
58:
59: setttyent();
60: for (cnt = 0; cnt < 3; ++cnt)
1.6 ! christos 61: if ((name = ttyname(cnt)) != NULL) {
! 62: if ((p = strrchr(name, '/')) != NULL)
1.1 cgd 63: ++p;
64: else
65: p = name;
1.6 ! christos 66: for (slot = 1; (ttyp = getttyent()) != NULL; ++slot)
1.1 cgd 67: if (!strcmp(ttyp->ty_name, p)) {
68: endttyent();
69: return(slot);
70: }
71: break;
72: }
73: endttyent();
74: return(0);
75: }
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