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 /* #define SIGACTION */ /* Define this if you have sigaction() */
66 #if defined(WIN32) && !defined(WINNT)
67 #define WIN_CONSOLE_BUG
71 /* 06-Apr-92 Luke Brennan Support for VMS */
78 #ifdef WIN_CONSOLE_BUG
84 /* There are 5 types of terminal interface supported,
85 * TERMIO, TERMIOS, VMS, MSDOS and SGTTY
88 #if defined(__sgi) && !defined(TERMIOS)
94 #if defined(linux) && !defined(TERMIO)
106 #if !defined(TERMIO) && !defined(TERMIOS) && !defined(VMS) && !defined(MSDOS)
114 #define TTY_STRUCT struct termios
115 #define TTY_FLAGS c_lflag
116 #define TTY_get(tty,data) tcgetattr(tty,data)
117 #define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data)
122 #define TTY_STRUCT struct termio
123 #define TTY_FLAGS c_lflag
124 #define TTY_get(tty,data) ioctl(tty,TCGETA,data)
125 #define TTY_set(tty,data) ioctl(tty,TCSETA,data)
130 #define TTY_STRUCT struct sgttyb
131 #define TTY_FLAGS sg_flags
132 #define TTY_get(tty,data) ioctl(tty,TIOCGETP,data)
133 #define TTY_set(tty,data) ioctl(tty,TIOCSETP,data)
136 #if !defined(_LIBC) && !defined(MSDOS) && !defined(VMS)
137 #include <sys/ioctl.h>
142 #define fgets(a,b,c) noecho_fgets(a,b,c)
162 static void read_till_nl(FILE *);
163 static void recsig(int);
164 static void pushsig(void);
165 static void popsig(void);
166 #if defined(MSDOS) && !defined(WIN16)
167 static int noecho_fgets(char *buf, int size, FILE *tty);
170 static void read_till_nl();
171 static void recsig();
172 static void pushsig();
173 static void popsig();
174 #if defined(MSDOS) && !defined(WIN16)
175 static int noecho_fgets();
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(buf, length, prompt, verify)
199 ret=des_read_pw(buf,buff,(length>BUFSIZ)?BUFSIZ:length,prompt,verify);
200 memset(buff,0,BUFSIZ);
206 static void read_till_nl(in)
214 } while (strchr(buf,'\n') == NULL);
218 /* return 0 if ok, 1 (or -1) otherwise */
219 int des_read_pw(buf, buff, size, prompt, verify)
228 $DESCRIPTOR(terminal,"TT");
229 long tty_orig[3], tty_new[3];
231 unsigned short channel = 0;
234 TTY_STRUCT tty_orig,tty_new;
239 /* statics are simply to avoid warnings about longjmp clobbering
259 if ((tty=fopen("/dev/tty","r")) == NULL)
262 if ((tty=fopen("con","r")) == NULL)
266 #if defined(TTY_get) && !defined(VMS)
267 if (TTY_get(fileno(tty),&tty_orig) == -1)
275 /* Ariel Glenn ariel@columbia.edu reports that solaris
276 * can return EINVAL instead. This should be ok */
283 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
286 status = SYS$ASSIGN(&terminal,&channel,0,0);
287 if (status != SS$_NORMAL)
289 status=SYS$QIOW(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0);
290 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
298 tty_new.TTY_FLAGS &= ~ECHO;
301 #if defined(TTY_set) && !defined(VMS)
302 if (is_a_tty && (TTY_set(fileno(tty),&tty_new) == -1))
306 tty_new[0] = tty_orig[0];
307 tty_new[1] = tty_orig[1] | TT$M_NOECHO;
308 tty_new[2] = tty_orig[2];
309 status = SYS$QIOW(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
310 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
315 while ((!ok) && (number--))
317 fputs(prompt,stderr);
322 if (feof(tty)) goto error;
323 if (ferror(tty)) goto error;
324 if ((p=(char *)strchr(buf,'\n')) != NULL)
326 else read_till_nl(tty);
329 fprintf(stderr,"\nVerifying password - %s",prompt);
332 fgets(buff,size,tty);
333 if (feof(tty)) goto error;
334 if ((p=(char *)strchr(buff,'\n')) != NULL)
336 else read_till_nl(tty);
338 if (strcmp(buf,buff) != 0)
340 fprintf(stderr,"\nVerify failure");
350 fprintf(stderr,"\n");
352 perror("fgets(tty)");
354 /* What can we do if there is an error? */
355 #if defined(TTY_set) && !defined(VMS)
356 if (ps >= 2) TTY_set(fileno(tty),&tty_orig);
360 status = SYS$QIOW(0,channel,IO$_SETMODE,&iosb,0,0
361 ,tty_orig,12,0,0,0,0);
364 if (ps >= 1) popsig();
365 if (stdin != tty) fclose(tty);
367 status = SYS$DASSGN(channel);
374 int des_read_pw(buf, buff, size, prompt, verify)
388 static void pushsig()
392 for (i=1; i<NX509_SIG; i++)
403 sigaction(i,NULL,&savsig[i]);
405 savsig[i]=signal(i,recsig);
410 signal(SIGWINCH,SIG_DFL);
418 for (i=1; i<NX509_SIG; i++)
429 sigaction(i,&savsig[i],NULL);
436 static void recsig(i)
445 #if defined(MSDOS) && !defined(WIN16)
446 static int noecho_fgets(buf,size,tty)
468 if (i == '\r') i='\n';
476 #ifdef WIN_CONSOLE_BUG
477 /* Win95 has several evil console bugs: one of these is that the
478 * last character read using getch() is passed to the next read: this is
479 * usually a CR so this can be trouble. No STDIO fix seems to work but
480 * flushing the console appears to do the trick.
484 inh = GetStdHandle(STD_INPUT_HANDLE);
485 FlushConsoleInputBuffer(inh);