1 /* crypto/des/read_pwd.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
59 #if !defined(MSDOS) && !defined(VMS) && !defined(WIN32)
61 /* If unistd.h defines _POSIX_VERSION, we conclude that we
62 * are on a POSIX system and have sigaction and termios. */
63 #if defined(_POSIX_VERSION)
66 # if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
73 /* #define SIGACTION */ /* Define this if you have sigaction() */
81 /* 06-Apr-92 Luke Brennan Support for VMS */
89 #ifdef WIN_CONSOLE_BUG
95 /* There are 5 types of terminal interface supported,
96 * TERMIO, TERMIOS, VMS, MSDOS and SGTTY
99 #if defined(__sgi) && !defined(TERMIOS)
105 #if defined(linux) && !defined(TERMIO)
117 #if !defined(TERMIO) && !defined(TERMIOS) && !defined(VMS) && !defined(MSDOS)
125 #define TTY_STRUCT struct termios
126 #define TTY_FLAGS c_lflag
127 #define TTY_get(tty,data) tcgetattr(tty,data)
128 #define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data)
133 #define TTY_STRUCT struct termio
134 #define TTY_FLAGS c_lflag
135 #define TTY_get(tty,data) ioctl(tty,TCGETA,data)
136 #define TTY_set(tty,data) ioctl(tty,TCSETA,data)
141 #define TTY_STRUCT struct sgttyb
142 #define TTY_FLAGS sg_flags
143 #define TTY_get(tty,data) ioctl(tty,TIOCGETP,data)
144 #define TTY_set(tty,data) ioctl(tty,TIOCSETP,data)
147 #if !defined(_LIBC) && !defined(MSDOS) && !defined(VMS)
148 #include <sys/ioctl.h>
153 #define fgets(a,b,c) noecho_fgets(a,b,c)
172 static void read_till_nl(FILE *);
173 static void recsig(int);
174 static void pushsig(void);
175 static void popsig(void);
176 #if defined(MSDOS) && !defined(WIN16)
177 static int noecho_fgets(char *buf, int size, FILE *tty);
180 static struct sigaction savsig[NX509_SIG];
183 static void (*savsig[NX509_SIG])(int );
185 static void (*savsig[NX509_SIG])();
190 int des_read_pw_string(char *buf, int length, const char *prompt,
196 ret=des_read_pw(buf,buff,(length>BUFSIZ)?BUFSIZ:length,prompt,verify);
197 memset(buff,0,BUFSIZ);
203 static void read_till_nl(FILE *in)
210 } while (strchr(buf,'\n') == NULL);
214 /* return 0 if ok, 1 (or -1) otherwise */
215 int des_read_pw(char *buf, char *buff, int size, const char *prompt,
220 $DESCRIPTOR(terminal,"TT");
221 long tty_orig[3], tty_new[3];
223 unsigned short channel = 0;
226 TTY_STRUCT tty_orig,tty_new;
231 /* statics are simply to avoid warnings about longjmp clobbering
251 if ((tty=fopen("/dev/tty","r")) == NULL)
254 if ((tty=fopen("con","r")) == NULL)
258 #if defined(TTY_get) && !defined(VMS)
259 if (TTY_get(fileno(tty),&tty_orig) == -1)
267 /* Ariel Glenn ariel@columbia.edu reports that solaris
268 * can return EINVAL instead. This should be ok */
275 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
278 status = SYS$ASSIGN(&terminal,&channel,0,0);
279 if (status != SS$_NORMAL)
281 status=SYS$QIOW(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0);
282 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
290 tty_new.TTY_FLAGS &= ~ECHO;
293 #if defined(TTY_set) && !defined(VMS)
294 if (is_a_tty && (TTY_set(fileno(tty),&tty_new) == -1))
298 tty_new[0] = tty_orig[0];
299 tty_new[1] = tty_orig[1] | TT$M_NOECHO;
300 tty_new[2] = tty_orig[2];
301 status = SYS$QIOW(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
302 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
307 while ((!ok) && (number--))
309 fputs(prompt,stderr);
314 if (feof(tty)) goto error;
315 if (ferror(tty)) goto error;
316 if ((p=(char *)strchr(buf,'\n')) != NULL)
318 else read_till_nl(tty);
321 fprintf(stderr,"\nVerifying password - %s",prompt);
324 fgets(buff,size,tty);
325 if (feof(tty)) goto error;
326 if ((p=(char *)strchr(buff,'\n')) != NULL)
328 else read_till_nl(tty);
330 if (strcmp(buf,buff) != 0)
332 fprintf(stderr,"\nVerify failure");
342 fprintf(stderr,"\n");
344 perror("fgets(tty)");
346 /* What can we do if there is an error? */
347 #if defined(TTY_set) && !defined(VMS)
348 if (ps >= 2) TTY_set(fileno(tty),&tty_orig);
352 status = SYS$QIOW(0,channel,IO$_SETMODE,&iosb,0,0
353 ,tty_orig,12,0,0,0,0);
356 if (ps >= 1) popsig();
357 if (stdin != tty) fclose(tty);
359 status = SYS$DASSGN(channel);
366 int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify)
375 static void pushsig(void)
381 memset(&sa,0,sizeof sa);
382 sa.sa_handler=recsig;
385 for (i=1; i<NX509_SIG; i++)
396 sigaction(i,&sa,&savsig[i]);
398 savsig[i]=signal(i,recsig);
403 signal(SIGWINCH,SIG_DFL);
407 static void popsig(void)
411 for (i=1; i<NX509_SIG; i++)
422 sigaction(i,&savsig[i],NULL);
429 static void recsig(int i)
437 #if defined(MSDOS) && !defined(WIN16)
438 static int noecho_fgets(char *buf, int size, FILE *tty)
457 if (i == '\r') i='\n';
465 #ifdef WIN_CONSOLE_BUG
466 /* Win95 has several evil console bugs: one of these is that the
467 * last character read using getch() is passed to the next read: this is
468 * usually a CR so this can be trouble. No STDIO fix seems to work but
469 * flushing the console appears to do the trick.
473 inh = GetStdHandle(STD_INPUT_HANDLE);
474 FlushConsoleInputBuffer(inh);