2 Copyright (C) 2010-2011 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));
31 #include "same-inode.h"
35 /* Compare two slave names.
36 On some systems, there are hard links in the /dev/ directory.
37 For example, on OSF/1 5.1,
38 /dev/ttyp0 == /dev/pts/0
39 /dev/ttyp9 == /dev/pts/9
40 /dev/ttypa == /dev/pts/10
41 /dev/ttype == /dev/pts/14
44 same_slave (const char *slave_name1, const char *slave_name2)
49 return (strcmp (slave_name1, slave_name2) == 0
50 || (stat (slave_name1, &statbuf1) >= 0
51 && stat (slave_name2, &statbuf2) >= 0
52 && SAME_INODE (statbuf1, statbuf2)));
59 /* Declare failure if test takes too long, by using default abort
61 signal (SIGALRM, SIG_DFL);
69 /* Open the controlling tty of the current process. */
70 fd = open ("/dev/tty", O_RDONLY);
73 fprintf (stderr, "Skipping test: cannot open controlling tty\n");
77 result = ptsname (fd);
78 /* The result is usually NULL, because /dev/tty is a slave, not a
82 ASSERT (memcmp (result, "/dev/", 5) == 0);
89 /* Solaris has BSD-style /dev/pty[p-r][0-9a-f] files, but the function
90 ptsname() does not work on them. */
95 /* Open the controlling tty of the current process. */
96 fd = open ("/dev/ptmx", O_RDWR | O_NOCTTY);
99 fprintf (stderr, "Skipping test: cannot open pseudo-terminal\n");
103 result = ptsname (fd);
104 ASSERT (result != NULL);
105 ASSERT (memcmp (result, "/dev/pts/", 9) == 0);
112 /* Try various master names of MacOS X: /dev/pty[p-w][0-9a-f] */
117 for (char1 = 'p'; char1 <= 'w'; char1++)
118 for (char2 = '0'; char2 <= 'f'; (char2 == '9' ? char2 = 'a' : char2++))
120 char master_name[32];
123 sprintf (master_name, "/dev/pty%c%c", char1, char2);
124 fd = open (master_name, O_RDONLY);
130 result = ptsname (fd);
131 ASSERT (result != NULL);
132 sprintf (slave_name, "/dev/tty%c%c", char1, char2);
133 ASSERT (same_slave (result, slave_name));
140 /* Try various master names of *BSD: /dev/pty[p-sP-S][0-9a-v] */
146 for (upper = 0; upper <= 1; upper++)
147 for (char1 = (upper ? 'P' : 'p'); char1 <= (upper ? 'S' : 's'); char1++)
148 for (char2 = '0'; char2 <= 'v'; (char2 == '9' ? char2 = 'a' : char2++))
150 char master_name[32];
153 sprintf (master_name, "/dev/pty%c%c", char1, char2);
154 fd = open (master_name, O_RDONLY);
160 result = ptsname (fd);
161 ASSERT (result != NULL);
162 sprintf (slave_name, "/dev/tty%c%c", char1, char2);
163 ASSERT (same_slave (result, slave_name));