1 /* Copyright (C) 1992-1998 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 3 of the
7 License, or (at your option) any later version.
9 The GNU C Library 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 GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, see <http://www.gnu.org/licenses/>. */
18 /* Modified to use with samba by Jeremy Allison, 8th July 1995. */
22 #if defined(HAVE_TERMIOS_H)
23 /* POSIX terminal handling. */
25 #elif defined(HAVE_TERMIO_H)
26 /* Older SYSV terminal handling - don't use if we can avoid it. */
28 #elif defined(HAVE_SYS_TERMIO_H)
29 /* Older SYSV terminal handling - don't use if we can avoid it. */
30 #include <sys/termio.h>
33 #ifdef HAVE_SYS_WAIT_H
38 * Define additional missing types
40 #ifndef HAVE_SIG_ATOMIC_T_TYPE
41 typedef int sig_atomic_t;
45 #define SIGCLD SIGCHLD
49 #define SIGNAL_CAST (RETSIGTYPE (*)(int))
52 #ifdef REPLACE_GETPASS
56 /* SYSTEM V TERMIO HANDLING */
58 static struct termio t;
60 #define ECHO_IS_ON(t) ((t).c_lflag & ECHO)
61 #define TURN_ECHO_OFF(t) ((t).c_lflag &= ~ECHO)
62 #define TURN_ECHO_ON(t) ((t).c_lflag |= ECHO)
72 static int tcgetattr(int fd, struct termio *_t)
74 return ioctl(fd, TCGETA, _t);
77 static int tcsetattr(int fd, int flags, struct termio *_t)
80 ioctl(fd, TCFLSH, TCIOFLUSH);
81 return ioctl(fd, TCSETS, _t);
84 #elif !defined(TCSAFLUSH)
86 /* BSD TERMIO HANDLING */
88 static struct sgttyb t;
90 #define ECHO_IS_ON(t) ((t).sg_flags & ECHO)
91 #define TURN_ECHO_OFF(t) ((t).sg_flags &= ~ECHO)
92 #define TURN_ECHO_ON(t) ((t).sg_flags |= ECHO)
97 static int tcgetattr(int fd, struct sgttyb *_t)
99 return ioctl(fd, TIOCGETP, (char *)_t);
102 static int tcsetattr(int fd, int flags, struct sgttyb *_t)
104 return ioctl(fd, TIOCSETP, (char *)_t);
107 #else /* POSIX TERMIO HANDLING */
108 #define ECHO_IS_ON(t) ((t).c_lflag & ECHO)
109 #define TURN_ECHO_OFF(t) ((t).c_lflag &= ~ECHO)
110 #define TURN_ECHO_ON(t) ((t).c_lflag |= ECHO)
112 static struct termios t;
113 #endif /* SYSV_TERMIO */
115 static void catch_signal(int signum,void (*handler)(int ))
117 #ifdef HAVE_SIGACTION
118 struct sigaction act;
119 struct sigaction oldact;
121 memset(&act, 0, sizeof(act));
123 act.sa_handler = handler;
126 * We *want* SIGALRM to interrupt a system call.
128 if(signum != SIGALRM)
129 act.sa_flags = SA_RESTART;
131 sigemptyset(&act.sa_mask);
132 sigaddset(&act.sa_mask,signum);
133 sigaction(signum,&act,&oldact);
134 return oldact.sa_handler;
135 #else /* !HAVE_SIGACTION */
136 /* FIXME: need to handle sigvec and systems with broken signal() */
137 return signal(signum, handler);
141 char *getsmbpass(const char *prompt)
145 static char buf[256];
146 static size_t bufsize = sizeof(buf);
149 /* Catch problematic signals */
150 catch_signal(SIGINT, SIGNAL_CAST SIG_IGN);
152 /* Try to write to and read from the terminal if we can.
153 If we can't open the terminal, use stderr and stdin. */
155 in = fopen ("/dev/tty", "w+");
164 setvbuf(in, NULL, _IONBF, 0);
166 /* Turn echoing off if it is on now. */
168 if (tcgetattr (fileno (in), &t) == 0)
173 echo_off = tcsetattr (fileno (in), TCSAFLUSH, &t) == 0;
182 /* Write the prompt. */
186 /* Read the password. */
188 fgets(buf, bufsize, in);
190 if (buf[nread - 1] == '\n')
191 buf[nread - 1] = '\0';
193 /* Restore echoing. */
195 (void) tcsetattr (fileno (in), TCSANOW, &t);
198 /* We opened the terminal; now close it. */
201 /* Catch problematic signals */
202 catch_signal(SIGINT, SIGNAL_CAST SIG_DFL);
209 void getsmbpasswd_dummy(void);
210 void getsmbpasswd_dummy(void) {;}