diff options
Diffstat (limited to 'winsup/cygwin/passwd.cc')
| -rw-r--r-- | winsup/cygwin/passwd.cc | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/winsup/cygwin/passwd.cc b/winsup/cygwin/passwd.cc index 6e012ed68..c6abb0205 100644 --- a/winsup/cygwin/passwd.cc +++ b/winsup/cygwin/passwd.cc @@ -281,6 +281,7 @@ getpass (const char * prompt) { char *pass = _my_tls.locals.pass; struct termios ti, newti; + bool tc_set = false; /* Try to use controlling tty in the first place. Use stdin and stderr only as fallback. */ @@ -295,19 +296,23 @@ getpass (const char * prompt) } /* Make sure to notice if stdin is closed. */ - if (tcgetattr (fileno (in), &ti) == -1) - pass[0] = '\0'; - else + if (fileno (in) >= 0) { flockfile (in); - newti = ti; - newti.c_lflag &= ~(ECHO | ISIG); /* No echo, no signal handling. */ - tcsetattr (fileno (in), TCSANOW, &newti); + /* Change tty attributes if possible. */ + if (!tcgetattr (fileno (in), &ti)) + { + newti = ti; + newti.c_lflag &= ~(ECHO | ISIG); /* No echo, no signal handling. */ + if (!tcsetattr (fileno (in), TCSANOW, &newti)) + tc_set = true; + } fputs (prompt, err); fflush (err); fgets (pass, _PASSWORD_LEN, in); fprintf (err, "\n"); - tcsetattr (fileno (in), TCSANOW, &ti); + if (tc_set) + tcsetattr (fileno (in), TCSANOW, &ti); funlockfile (in); char *crlf = strpbrk (pass, "\r\n"); if (crlf) |