1 /*
2 * $Id: ttyfdslot.c,v 1.4 2002/06/22 13:26:21 hiroo Exp $
3 */
4
5 /*
6 * FreeWnn is a network-extensible Kana-to-Kanji conversion system.
7 * This file is part of FreeWnn.
8 *
9 * Copyright Kyoto University Research Institute for Mathematical Sciences
10 * 1987, 1988, 1989, 1990, 1991, 1992
11 * Copyright OMRON Corporation. 1987, 1988, 1989, 1990, 1991, 1992, 1999
12 * Copyright ASTEC, Inc. 1987, 1988, 1989, 1990, 1991, 1992
13 * Copyright FreeWnn Project 1999, 2000, 2002
14 *
15 * Maintainer: FreeWnn Project <freewnn@tomo.gr.jp>
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 */
31 #ifdef HAVE_CONFIG_H
32 # include <config.h>
33 #endif
34
35 #include <stdio.h>
36 #if STDC_HEADERS
37 # include <string.h>
38 #else
39 # if HAVE_MEMORY_H
40 # include <memory.h>
41 # endif
42 # if HAVE_STRINGS_H
43 # include <strings.h>
44 # endif
45 #endif /* STDC_HEADERS */
46 #if HAVE_UNISTD_H
47 # include <unistd.h>
48 #endif
49
50 #include "commonhd.h"
51 #include "wnn_os.h"
52
53 /*
54 BSD42
55 */
56 #if defined(BSD42) && (! defined(BSD43)) || defined(linux)
57
58 #define SLOTSIZ 32
59
60 int
ttyfdslot(int fd)61 ttyfdslot (int fd)
62 {
63 char eachslot[SLOTSIZ];
64 register char *fullnamp;
65 register char *ttynamp;
66 register FILE *ttysfp;
67 register char *p;
68 register int slotnum;
69
70 if ((fullnamp = ttyname (fd)) == NULL)
71 return NULL;
72 if ((ttynamp = rindex (fullnamp, '/')) == NULL)
73 {
74 ttynamp = fullnamp;
75 }
76 else
77 {
78 ttynamp++;
79 }
80 if ((ttysfp = fopen ("/etc/ttys", "r")) == NULL)
81 return NULL;
82 for (slotnum = 0; fgets (eachslot, SLOTSIZ, ttysfp);)
83 {
84 p = eachslot + strlen (eachslot) - 1;
85 if (*p == '\n')
86 *p = '\0';
87 slotnum++;
88 if (strcmp (ttynamp, &eachslot[2]) == 0)
89 {
90 fclose (ttysfp);
91 return slotnum;
92 }
93 }
94 fclose (ttysfp);
95 return NULL;
96 }
97 #endif /* defined(BSD42) && (! defined(BSD43)) || defined(linux) */
98
99
100 /*
101 BSD43
102 */
103 #if defined(BSD43) && !defined(linux)
104
105 #include <ttyent.h>
106
107 int
ttyfdslot(int fd)108 ttyfdslot (int fd)
109 {
110 register char *fullnamp;
111 register char *ttynamp;
112 register int slotnum;
113 register struct ttyent *te;
114 if ((fullnamp = ttyname (fd)) == NULL)
115 return NULL;
116 if ((ttynamp = rindex (fullnamp, '/')) == NULL)
117 {
118 ttynamp = fullnamp;
119 }
120 else
121 {
122 ttynamp++;
123 }
124 for (slotnum = 1; (te = getttyent ()) != NULL; slotnum++)
125 {
126 if (strcmp (te->ty_name, ttynamp) == 0)
127 {
128 endttyent ();
129 return slotnum;
130 }
131 }
132 endttyent ();
133 return NULL;
134 }
135
136 #endif /* defined(BSD43) && !defined(linux) */
137