/* Test of ptsname(3).
- Copyright (C) 2010 Free Software Foundation, Inc.
+ Copyright (C) 2010-2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "signature.h"
SIGNATURE_CHECK (ptsname, char *, (int));
+#include <errno.h>
#include <fcntl.h>
+#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
+#include <sys/stat.h>
+
+#include "same-inode.h"
#include "macros.h"
+/* Compare two slave names.
+ On some systems, there are hard links in the /dev/ directory.
+ For example, on OSF/1 5.1,
+ /dev/ttyp0 == /dev/pts/0
+ /dev/ttyp9 == /dev/pts/9
+ /dev/ttypa == /dev/pts/10
+ /dev/ttype == /dev/pts/14
+ */
+static int
+same_slave (const char *slave_name1, const char *slave_name2)
+{
+ struct stat statbuf1;
+ struct stat statbuf2;
+
+ return (strcmp (slave_name1, slave_name2) == 0
+ || (stat (slave_name1, &statbuf1) >= 0
+ && stat (slave_name2, &statbuf2) >= 0
+ && SAME_INODE (statbuf1, statbuf2)));
+}
+
int
main (void)
{
+#if HAVE_DECL_ALARM
+ /* Declare failure if test takes too long, by using default abort
+ caused by SIGALRM. */
+ int alarm_value = 5;
+ signal (SIGALRM, SIG_DFL);
+ alarm (alarm_value);
+#endif
+
+ {
+ char *result;
+
+ errno = 0;
+ result = ptsname (-1);
+ ASSERT (result == NULL);
+ ASSERT (errno == EBADF
+ || errno == ENOTTY /* seen on glibc */
+ );
+ }
+
{
int fd;
char *result;
close (fd);
}
- /* Try various master names of MacOS X: /dev/pty[p-w][0-9a-f] */
+#if defined __sun
+ /* Solaris has BSD-style /dev/pty[p-r][0-9a-f] files, but the function
+ ptsname() does not work on them. */
+ {
+ int fd;
+ char *result;
+
+ /* Open the controlling tty of the current process. */
+ fd = open ("/dev/ptmx", O_RDWR | O_NOCTTY);
+ if (fd < 0)
+ {
+ fprintf (stderr, "Skipping test: cannot open pseudo-terminal\n");
+ return 77;
+ }
+
+ result = ptsname (fd);
+ ASSERT (result != NULL);
+ ASSERT (memcmp (result, "/dev/pts/", 9) == 0);
+
+ close (fd);
+ }
+
+#else
+
+ /* Try various master names of Mac OS X: /dev/pty[p-w][0-9a-f] */
{
int char1;
int char2;
result = ptsname (fd);
ASSERT (result != NULL);
sprintf (slave_name, "/dev/tty%c%c", char1, char2);
- ASSERT (strcmp (result, slave_name) == 0);
+ ASSERT (same_slave (result, slave_name));
close (fd);
}
result = ptsname (fd);
ASSERT (result != NULL);
sprintf (slave_name, "/dev/tty%c%c", char1, char2);
- ASSERT (strcmp (result, slave_name) == 0);
+ ASSERT (same_slave (result, slave_name));
close (fd);
}
}
}
+#endif
+
return 0;
}