3 * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
6 * For copying and distribution information, please see the file
9 * This routine prints the supplied string to standard
10 * output as a prompt, and reads a password string without
14 #include <afs/param.h>
15 #include <mit-cpyright.h>
21 #if defined(AFS_SUN5_ENV) || defined(AFS_NT40_ENV)
31 #if defined(AFS_FBSD_ENV)
34 #include <sys/ioctl.h>
39 #if defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
45 #include <sys/ttold.h>
50 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN5_ENV)
54 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
62 #if defined(AFS_SGI_ENV) || defined (AFS_AIX_ENV) /*|| defined (AFS_HPUX_ENV) || defined(AFS_SUN5_ENV)*/
77 static sigtype sig_restore();
78 static push_signals(), pop_signals();
79 int des_read_pw_string();
82 /*** Routines ****************************************************** */
84 des_read_password(k,prompt,verify)
90 char key_string[BUFSIZ];
99 ok = des_read_pw_string(key_string, BUFSIZ, prompt, verify);
101 des_string_to_key(key_string, k);
104 bzero(key_string, sizeof (key_string));
108 #if defined (AFS_AIX_ENV) || defined (AFS_HPUX_ENV) || defined(AFS_SGI_ENV) || defined(AFS_SUN_ENV) || defined(AFS_LINUX20_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
109 static void catch(int);
112 #if !defined(BSDUNIX) && (defined(AFS_AIX_ENV) || defined (AFS_HPUX_ENV) || defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV))
117 * This version just returns the string, doesn't map to key.
119 * Returns 0 on success, non-zero on failure.
122 des_read_pw_string(s,maxa,prompt,verify)
130 #if defined(AFS_HPUX_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
132 struct sigaction newsig, oldsig;
133 struct termios save_ttyb, ttyb;
135 #if defined(AFS_DARWIN_ENV)
138 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN5_ENV)
140 struct sigaction osa, sa;
145 struct sgttyb tty_state, echo_off_tty_state;
148 #if defined (AFS_AIX_ENV) || defined (AFS_HPUX_ENV) || defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV)
153 extern void setbuf();
154 extern int kill(), fclose();
159 DWORD oldConMode, newConMode;
160 BOOL resetConMode = FALSE;
162 char key_string[BUFSIZ];
168 #if defined(AFS_HPUX_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
169 if ((fi = fopen("/dev/tty", "r")) == NULL)
171 setbuf(fi, (char *)NULL); /* We don't want any buffering for our i/o. */
173 * Install signal handler for SIGINT so that we can restore
174 * the tty settings after we change them. The handler merely
175 * increments the variable "intrupt" to tell us that an
176 * interrupt signal was received.
178 newsig.sa_handler = catch;
179 sigemptyset(&newsig.sa_mask);
181 sigaction(SIGINT, &newsig, &oldsig);
185 * Get the terminal characters (save for later restoration) and
186 * reset them so that echo is off
189 tcgetattr(fno, &ttyb);
191 ttyb.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
192 tcsetattr(fno, TCSAFLUSH, &ttyb);
194 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN5_ENV)
195 if((fi = fopen("/dev/tty", "r")) == NULL) {
199 setbuf(fi, (char*)NULL);
200 sa.sa_handler = catch;
202 sa.sa_flags = SA_INTERRUPT;
203 (void) sigaction(SIGINT, &sa, &osa);
205 (void) ioctl(fileno(fi), TCGETS, &ttyb);
206 flags = ttyb.c_lflag;
207 ttyb.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
208 (void) ioctl(fileno(fi), TCSETSF, &ttyb);
211 /* XXX assume jmp_buf is typedef'ed to an array */
212 bcopy((char *)old_env, (char *)env, sizeof(env));
215 /* save terminal state*/
216 if (ioctl(0,TIOCGETP,(char *)&tty_state) == -1)
220 bcopy (&tty_state, &echo_off_tty_state, sizeof (tty_state));
221 echo_off_tty_state.sg_flags &= ~ECHO;
222 if (ioctl(0,TIOCSETP,(char *)&echo_off_tty_state) == -1)
225 #if defined (AFS_AIX_ENV) || defined (AFS_HPUX_ENV) || defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV)
226 if((fi = fopen("/dev/tty", "r+")) == NULL)
229 setbuf(fi, (char*)NULL);
230 sig = signal(SIGINT, catch);
232 (void) ioctl(fileno(fi), TCGETA, &ttyb);
235 flags = ttyb.c_lflag;
236 ttyb.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
237 (void) ioctl(fileno(fi), TCSETAF, &ttyb);
240 /* turn off console input echoing */
241 if ((hConStdin = GetStdHandle(STD_INPUT_HANDLE)) != INVALID_HANDLE_VALUE) {
242 if (GetConsoleMode(hConStdin, &oldConMode)) {
243 newConMode = (oldConMode & ~(ENABLE_ECHO_INPUT));
244 if (SetConsoleMode(hConStdin, newConMode)) {
255 (void) printf(prompt);
256 (void) fflush(stdout);
258 h19line(s,sizeof(s),0);
262 if (!fgets(s, maxa, stdin)) {
267 * Otherwise hitting ctrl-d will always leave us inside this loop forever!
273 if ((ptr = index(s, '\n')))
277 printf("\nVerifying, please re-enter %s",prompt);
278 (void) fflush(stdout);
280 h19line(key_string,sizeof(key_string),0);
281 if (!strlen(key_string))
284 if (!fgets(key_string, sizeof(key_string), stdin)) {
288 if ((ptr = index(key_string, '\n')))
291 if (strcmp(s,key_string)) {
292 printf("\n\07\07Mismatch - try again\n");
293 (void) fflush(stdout);
306 * Restore the terminal to its previous characteristics.
307 * Restore the old signal handler for SIGINT.
309 tcsetattr(fno, TCSANOW, &save_ttyb);
310 sigaction(SIGINT, &oldsig, (struct sigaction *)0);
315 * If we got a SIGINT while we were doing things, send the SIGINT
316 * to ourselves so that the calling program receives it (since we
317 * were intercepting it for a period of time.)
320 kill(getpid(), SIGINT);
322 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN5_ENV)
323 ttyb.c_lflag = flags;
324 (void) ioctl(fileno(fi), TCSETSW, &ttyb);
325 (void) sigaction(SIGINT, &osa, (struct sigaction *)NULL);
330 if (ioctl(0,TIOCSETP,(char *)&tty_state))
333 bcopy((char *)env, (char *)old_env, sizeof(env));
335 #if defined (AFS_AIX_ENV) /*|| defined (AFS_HPUX_ENV)*/ || defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV)
336 ttyb.c_lflag = flags;
338 (void) ioctl(fileno(fi), TCSETAW, &ttyb);
339 (void) signal(SIGINT, sig);
343 (void) kill(getpid(), SIGINT);
346 /* restore console to original mode settings */
348 (void)SetConsoleMode(hConStdin, oldConMode);
356 bzero(key_string, sizeof (key_string));
357 s[maxa-1] = 0; /* force termination */
358 return !ok; /* return nonzero if not okay */
363 * this can be static since we should never have more than
367 void static (*old_sigfunc[NSIG])();
369 static sigtype (*old_sigfunc[NSIG])();
372 static push_signals()
375 for (i = 0; i < NSIG; i++)
376 old_sigfunc[i] = signal(i,sig_restore);
382 for (i = 0; i < NSIG; i++)
383 (void) signal(i,old_sigfunc[i]);
394 #if defined (AFS_AIX_ENV) || defined (AFS_HPUX_ENV) || defined(AFS_SGI_ENV) || defined(AFS_SUN_ENV) || defined(AFS_LINUX20_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)