2 Copyright (C) 2010-2013 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program 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
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "signature.h"
22 SIGNATURE_CHECK (ptsname, char *, (int));
32 #include "same-inode.h"
36 /* Compare two slave names.
37 On some systems, there are hard links in the /dev/ directory.
38 For example, on OSF/1 5.1,
39 /dev/ttyp0 == /dev/pts/0
40 /dev/ttyp9 == /dev/pts/9
41 /dev/ttypa == /dev/pts/10
42 /dev/ttype == /dev/pts/14
45 same_slave (const char *slave_name1, const char *slave_name2)
50 return (strcmp (slave_name1, slave_name2) == 0
51 || (stat (slave_name1, &statbuf1) >= 0
52 && stat (slave_name2, &statbuf2) >= 0
53 && SAME_INODE (statbuf1, statbuf2)));
60 /* Declare failure if test takes too long, by using default abort
63 signal (SIGALRM, SIG_DFL);
71 result = ptsname (-1);
72 ASSERT (result == NULL);
73 ASSERT (errno == EBADF
74 || errno == ENOTTY /* seen on glibc */
82 /* Open the controlling tty of the current process. */
83 fd = open ("/dev/tty", O_RDONLY);
86 fprintf (stderr, "Skipping test: cannot open controlling tty\n");
90 result = ptsname (fd);
91 /* The result is usually NULL, because /dev/tty is a slave, not a
95 ASSERT (memcmp (result, "/dev/", 5) == 0);
102 /* Solaris has BSD-style /dev/pty[p-r][0-9a-f] files, but the function
103 ptsname() does not work on them. */
108 /* Open the controlling tty of the current process. */
109 fd = open ("/dev/ptmx", O_RDWR | O_NOCTTY);
112 fprintf (stderr, "Skipping test: cannot open pseudo-terminal\n");
116 result = ptsname (fd);
117 ASSERT (result != NULL);
118 ASSERT (memcmp (result, "/dev/pts/", 9) == 0);
125 /* Try various master names of Mac OS X: /dev/pty[p-w][0-9a-f] */
130 for (char1 = 'p'; char1 <= 'w'; char1++)
131 for (char2 = '0'; char2 <= 'f'; (char2 == '9' ? char2 = 'a' : char2++))
133 char master_name[32];
136 sprintf (master_name, "/dev/pty%c%c", char1, char2);
137 fd = open (master_name, O_RDONLY);
143 result = ptsname (fd);
144 ASSERT (result != NULL);
145 sprintf (slave_name, "/dev/tty%c%c", char1, char2);
146 ASSERT (same_slave (result, slave_name));
153 /* Try various master names of *BSD: /dev/pty[p-sP-S][0-9a-v] */
159 for (upper = 0; upper <= 1; upper++)
160 for (char1 = (upper ? 'P' : 'p'); char1 <= (upper ? 'S' : 's'); char1++)
161 for (char2 = '0'; char2 <= 'v'; (char2 == '9' ? char2 = 'a' : char2++))
163 char master_name[32];
166 sprintf (master_name, "/dev/pty%c%c", char1, char2);
167 fd = open (master_name, O_RDONLY);
173 result = ptsname (fd);
174 ASSERT (result != NULL);
175 sprintf (slave_name, "/dev/tty%c%c", char1, char2);
176 ASSERT (same_slave (result, slave_name));