diff options
Diffstat (limited to 'winsup/cygwin/fhandler_tty.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_tty.cc | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc index a8a56598e..c68211b66 100644 --- a/winsup/cygwin/fhandler_tty.cc +++ b/winsup/cygwin/fhandler_tty.cc @@ -1419,13 +1419,19 @@ fhandler_pty_master::ioctl (unsigned int cmd, void *arg) return 0; } -char * -fhandler_pty_master::ptsname () +int +fhandler_pty_master::ptsname_r (char *buf, size_t buflen) { - static char buf[TTY_NAME_MAX]; + char tmpbuf[TTY_NAME_MAX]; - __small_sprintf (buf, "/dev/pty%d", get_unit ()); - return buf; + __small_sprintf (tmpbuf, "/dev/pty%d", get_unit ()); + if (buflen <= strlen (tmpbuf)) + { + set_errno (ERANGE); + return ERANGE; + } + strcpy (buf, tmpbuf); + return 0; } void |