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81fea2b1 JL |
1 | /* Copyright (C) 1995, 1996 Free Software Foundation, Inc. |
2 | This file is part of GNU Fortran libU77 library. | |
3 | ||
4 | This library is free software; you can redistribute it and/or modify it | |
5 | under the terms of the GNU Library General Public License as published | |
6 | by the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | GNU Fortran is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with GNU Fortran; see the file COPYING.LIB. If | |
16 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
18 | ||
19 | #ifdef HAVE_CONFIG_H | |
20 | #include "config.h" | |
21 | #endif | |
22 | #include <sys/types.h> | |
23 | #if STDC_HEADERS | |
24 | # include <stdlib.h> | |
25 | #endif | |
26 | #if HAVE_UNISTD_H | |
27 | # include <unistd.h> /* POSIX for ttyname */ | |
28 | #endif | |
29 | #include <stdio.h> | |
30 | #if HAVE_STRING_H | |
31 | # include <string.h> | |
32 | #else | |
33 | # include <strings.h> | |
34 | #endif | |
35 | #include <errno.h> /* for ENOSYS */ | |
36 | #include "f2c.h" | |
37 | ||
38 | #ifdef KR_headers | |
39 | extern void s_copy (); | |
40 | extern integer G77_fnum_0 (); | |
41 | /* Character */ void G77_ttynam_0 (ret_val, ret_val_len, lunit) | |
42 | char *ret_val; ftnlen ret_val_len; integer *lunit | |
43 | #else | |
44 | extern integer G77_fnum_0 (integer *lunit); | |
45 | extern void s_copy(register char *a, register char *b, ftnlen la, ftnlen lb); | |
46 | /* Character */ void G77_ttynam_0 (char *ret_val, ftnlen ret_val_len, integer *lunit) | |
47 | #endif | |
48 | { | |
49 | #if defined (HAVE_TTYNAME) | |
50 | size_t i; | |
51 | char *p; | |
52 | ||
53 | p = ttyname (G77_fnum_0 (lunit)); | |
54 | if (p != NULL) { | |
55 | i = strlen (p); | |
56 | s_copy (ret_val, p, ret_val_len, i); | |
57 | } else { | |
58 | s_copy (ret_val, " ", ret_val_len, 1); | |
59 | } | |
60 | #else | |
61 | errno = ENOSYS; | |
749f840d | 62 | s_copy (ret_val, " ", ret_val_len, 1); |
81fea2b1 JL |
63 | #endif |
64 | } |