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b168057a | 1 | /* Copyright (C) 1994-2015 Free Software Foundation, Inc. |
2c6fe0bd | 2 | This file is part of the GNU C Library. |
60478656 | 3 | |
2c6fe0bd | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
60478656 | 8 | |
2c6fe0bd UD |
9 | The GNU C Library 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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
60478656 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
60478656 RM |
17 | |
18 | #include <errno.h> | |
19 | #include <string.h> | |
20 | #include <unistd.h> | |
21 | #include <hurd.h> | |
22 | #include <hurd/term.h> | |
23 | #include <hurd/fd.h> | |
24 | ||
25 | /* Store at most BUFLEN characters of the pathname of the terminal FD is | |
26 | open on in BUF. Return 0 on success, -1 otherwise. */ | |
27 | int | |
6259ec0d | 28 | __ttyname_r (int fd, char *buf, size_t buflen) |
60478656 RM |
29 | { |
30 | error_t err; | |
31 | char nodename[1024]; /* XXX */ | |
2c6fe0bd | 32 | size_t len; |
60478656 RM |
33 | |
34 | nodename[0] = '\0'; | |
35 | if (err = HURD_DPORT_USE (fd, __term_get_nodename (port, nodename))) | |
fd3ebeda ST |
36 | { |
37 | if (err == MIG_BAD_ID || err == EOPNOTSUPP) | |
38 | err = ENOTTY; | |
39 | return __hurd_dfail (fd, err), errno; | |
40 | } | |
60478656 | 41 | |
2c6fe0bd | 42 | len = strlen (nodename) + 1; |
60478656 RM |
43 | if (len > buflen) |
44 | { | |
d653abb7 | 45 | errno = ERANGE; |
6cffee36 | 46 | return errno; |
60478656 RM |
47 | } |
48 | ||
49 | memcpy (buf, nodename, len); | |
50 | return 0; | |
51 | } | |
6259ec0d UD |
52 | |
53 | weak_alias (__ttyname_r, ttyname_r) |