1 /* crypto/des/read_pwd.c */
\r/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
\r * All rights reserved.
\r *
\r * This package is an SSL implementation written
\r * by Eric Young (eay@mincom.oz.au).
\r * The implementation was written so as to conform with Netscapes SSL.
\r *
\r * This library is free for commercial and non-commercial use as long as
\r * the following conditions are aheared to. The following conditions
\r * apply to all code found in this distribution, be it the RC4, RSA,
\r * lhash, DES, etc., code; not just the SSL code. The SSL documentation
\r * included with this distribution is covered by the same copyright terms
\r * except that the holder is Tim Hudson (tjh@mincom.oz.au).
\r *
\r * Copyright remains Eric Young's, and as such any Copyright notices in
\r * the code are not to be removed.
\r * If this package is used in a product, Eric Young should be given attribution
\r * as the author of the parts of the library used.
\r * This can be in the form of a textual message at program startup or
\r * in documentation (online or textual) provided with the package.
\r *
\r * Redistribution and use in source and binary forms, with or without
\r * modification, are permitted provided that the following conditions
\r * are met:
\r * 1. Redistributions of source code must retain the copyright
\r * notice, this list of conditions and the following disclaimer.
\r * 2. Redistributions in binary form must reproduce the above copyright
\r * notice, this list of conditions and the following disclaimer in the
\r * documentation and/or other materials provided with the distribution.
\r * 3. All advertising materials mentioning features or use of this software
\r * must display the following acknowledgement:
\r * "This product includes cryptographic software written by
\r * Eric Young (eay@mincom.oz.au)"
\r * The word 'cryptographic' can be left out if the rouines from the library
\r * being used are not cryptographic related :-).
\r * 4. If you include any Windows specific code (or a derivative thereof) from
\r * the apps directory (application code) you must include an acknowledgement:
\r * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
\r *
\r * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
\r * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
\r * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
\r * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
\r * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
\r * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
\r * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
\r * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
\r * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
\r * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
\r * SUCH DAMAGE.
\r *
\r * The licence and distribution terms for any publically available version or
\r * derivative of this code cannot be changed. i.e. this code cannot simply be
\r * copied and put under another distribution licence
\r * [including the GNU Public Licence.]
\r */
\r\r#ifdef WIN16TTY
\r#undef WIN16
\r#undef _WINDOWS
\r#include <graph.h>
\r#endif
\r\r/* 06-Apr-92 Luke Brennan Support for VMS */
\r#include "des_locl.h"
\r#include <signal.h>
\r#include <string.h>
\r#include <setjmp.h>
\r#include <errno.h>
\r\r/* There are 5 types of terminal interface supported,
\r * TERMIO, TERMIOS, VMS, MSDOS and SGTTY
\r */
\r\r#if defined(__sgi) && !defined(TERMIOS)
\r#define TERMIOS
\r#undef TERMIO
\r#undef SGTTY
\r#endif
\r\r#if defined(linux) && !defined(TERMIO)
\r#undef TERMIOS
\r#define TERMIO
\r#undef SGTTY
\r#endif
\r\r#ifdef _LIBC
\r#define TERMIO
\r#endif
\r\r#if !defined(TERMIO) && !defined(TERMIOS) && !defined(VMS) && !defined(MSDOS)
\r#define SGTTY
\r#endif
\r\r#ifdef TERMIOS
\r#include <termios.h>
\r#define TTY_STRUCT struct termios
\r#define TTY_FLAGS c_lflag
\r#define TTY_get(tty,data) tcgetattr(tty,data)
\r#define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data)
\r#endif
\r\r#ifdef TERMIO
\r#include <termio.h>
\r#define TTY_STRUCT struct termio
\r#define TTY_FLAGS c_lflag
\r#define TTY_get(tty,data) ioctl(tty,TCGETA,data)
\r#define TTY_set(tty,data) ioctl(tty,TCSETA,data)
\r#endif
\r\r#ifdef SGTTY
\r#include <sgtty.h>
\r#define TTY_STRUCT struct sgttyb
\r#define TTY_FLAGS sg_flags
\r#define TTY_get(tty,data) ioctl(tty,TIOCGETP,data)
\r#define TTY_set(tty,data) ioctl(tty,TIOCSETP,data)
\r#endif
\r\r#if !defined(_LIBC) && !defined(MSDOS) && !defined(VMS)
\r#include <sys/ioctl.h>
\r#endif
\r\r#ifdef MSDOS
\r#include <conio.h>
\r#define fgets(a,b,c) noecho_fgets(a,b,c)
\r#endif
\r\r#ifdef VMS
\r#include <ssdef.h>
\r#include <iodef.h>
\r#include <ttdef.h>
\r#include <descrip.h>
\rstruct IOSB {
\r short iosb$w_value;
\r short iosb$w_count;
\r long iosb$l_info;
\r };
\r#endif
\r\r#ifndef NX509_SIG
\r#define NX509_SIG 32
\r#endif
\r\r#ifndef NOPROTO
\rstatic void read_till_nl(FILE *);
\rstatic int read_pw(char *buf, char *buff, int size, char *prompt, int verify);
\rstatic void recsig(int);
\rstatic void pushsig(void);
\rstatic void popsig(void);
\r#if defined(MSDOS) && !defined(WIN16)
\rstatic int noecho_fgets(char *buf, int size, FILE *tty);
\r#endif
\r#else
\rstatic void read_till_nl();
\rstatic int read_pw();
\rstatic void recsig();
\rstatic void pushsig();
\rstatic void popsig();
\r#if defined(MSDOS) && !defined(WIN16)
\rstatic int noecho_fgets();
\r#endif
\r#endif
\r\r#ifndef NOPROTO
\rstatic void (*savsig[NX509_SIG])(int );
\r#else
\rstatic void (*savsig[NX509_SIG])();
\r#endif
\rstatic jmp_buf save;
\r\rint des_read_password(key, prompt, verify)
\rdes_cblock (*key);
\rchar *prompt;
\rint verify;
\r {
\r int ok;
\r char buf[BUFSIZ],buff[BUFSIZ];
\r\r if ((ok=read_pw(buf,buff,BUFSIZ,prompt,verify)) == 0)
\r des_string_to_key(buf,key);
\r memset(buf,0,BUFSIZ);
\r memset(buff,0,BUFSIZ);
\r return(ok);
\r }
\r\rint des_read_2passwords(key1, key2, prompt, verify)
\rdes_cblock (*key1);
\rdes_cblock (*key2);
\rchar *prompt;
\rint verify;
\r {
\r int ok;
\r char buf[BUFSIZ],buff[BUFSIZ];
\r\r if ((ok=read_pw(buf,buff,BUFSIZ,prompt,verify)) == 0)
\r des_string_to_2keys(buf,key1,key2);
\r memset(buf,0,BUFSIZ);
\r memset(buff,0,BUFSIZ);
\r return(ok);
\r }
\r\rint des_read_pw_string(buf, length, prompt, verify)
\rchar *buf;
\rint length;
\rchar *prompt;
\rint verify;
\r {
\r char buff[BUFSIZ];
\r int ret;
\r\r ret=read_pw(buf,buff,(length>BUFSIZ)?BUFSIZ:length,prompt,verify);
\r memset(buff,0,BUFSIZ);
\r return(ret);
\r }
\r\r#ifndef WIN16
\r\rstatic void read_till_nl(in)
\rFILE *in;
\r {
\r#define SIZE 4
\r char buf[SIZE+1];
\r\r do {
\r fgets(buf,SIZE,in);
\r } while (strchr(buf,'\n') == NULL);
\r }
\r\r\r/* return 0 if ok, 1 (or -1) otherwise */
\rstatic int read_pw(buf, buff, size, prompt, verify)
\rchar *buf;
\rchar *buff;
\rint size;
\rchar *prompt;
\rint verify;
\r {
\r#ifdef VMS
\r struct IOSB iosb;
\r $DESCRIPTOR(terminal,"TT");
\r long tty_orig[3], tty_new[3];
\r long status;
\r unsigned short channel = 0;
\r#else
\r#ifndef MSDOS
\r TTY_STRUCT tty_orig,tty_new;
\r#endif
\r#endif
\r int number=5;
\r int ok=0;
\r int ps=0;
\r int is_a_tty=1;
\r\r FILE *tty=NULL;
\r char *p;
\r\r#ifdef __CYGWIN32__
\r tty = stdin;
\r#elif !defined(MSDOS)
\r if ((tty=fopen("/dev/tty","r")) == NULL)
\r tty=stdin;
\r#else /* MSDOS */
\r if ((tty=fopen("con","r")) == NULL)
\r tty=stdin;
\r#endif /* MSDOS */
\r\r#if defined(TTY_get) && !defined(VMS)
\r if (TTY_get(fileno(tty),&tty_orig) == -1)
\r {
\r#ifdef ENOTTY
\r if (errno == ENOTTY)
\r is_a_tty=0;
\r else
\r#endif
\r return(-1);
\r }
\r memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
\r#endif
\r#ifdef VMS
\r status = SYS$ASSIGN(&terminal,&channel,0,0);
\r if (status != SS$_NORMAL)
\r return(-1);
\r status=SYS$QIOW(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0);
\r if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
\r return(-1);
\r#endif
\r\r if (setjmp(save))
\r {
\r ok=0;
\r goto error;
\r }
\r pushsig();
\r ps=1;
\r\r#ifdef TTY_FLAGS
\r tty_new.TTY_FLAGS &= ~ECHO;
\r#endif
\r\r#if defined(TTY_set) && !defined(VMS)
\r if (is_a_tty && (TTY_set(fileno(tty),&tty_new) == -1))
\r return(-1);
\r#endif
\r#ifdef VMS
\r tty_new[0] = tty_orig[0];
\r tty_new[1] = tty_orig[1] | TT$M_NOECHO;
\r tty_new[2] = tty_orig[2];
\r status = SYS$QIOW(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
\r if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
\r return(-1);
\r#endif
\r ps=2;
\r\r while ((!ok) && (number--))
\r {
\r fputs(prompt,stderr);
\r fflush(stderr);
\r\r buf[0]='\0';
\r fgets(buf,size,tty);
\r if (feof(tty)) goto error;
\r if (ferror(tty)) goto error;
\r if ((p=(char *)strchr(buf,'\n')) != NULL)
\r *p='\0';
\r else read_till_nl(tty);
\r if (verify)
\r {
\r fprintf(stderr,"\nVerifying password - %s",prompt);
\r fflush(stderr);
\r buff[0]='\0';
\r fgets(buff,size,tty);
\r if (feof(tty)) goto error;
\r if ((p=(char *)strchr(buff,'\n')) != NULL)
\r *p='\0';
\r else read_till_nl(tty);
\r \r if (strcmp(buf,buff) != 0)
\r {
\r fprintf(stderr,"\nVerify failure");
\r fflush(stderr);
\r break;
\r /* continue; */
\r }
\r }
\r ok=1;
\r }
\r\rerror:
\r fprintf(stderr,"\n");
\r#ifdef DEBUG
\r perror("fgets(tty)");
\r#endif
\r /* What can we do if there is an error? */
\r#if defined(TTY_set) && !defined(VMS)
\r if (ps >= 2) TTY_set(fileno(tty),&tty_orig);
\r#endif
\r#ifdef VMS
\r if (ps >= 2)
\r status = SYS$QIOW(0,channel,IO$_SETMODE,&iosb,0,0
\r ,tty_orig,12,0,0,0,0);
\r#endif
\r \r if (ps >= 1) popsig();
\r if (stdin != tty) fclose(tty);
\r#ifdef VMS
\r status = SYS$DASSGN(channel);
\r#endif
\r return(!ok);
\r }
\r\r#else /* WIN16 */
\r\rstatic int read_pw(buf, buff, size, prompt, verify)
\rchar *buf;
\rchar *buff;
\rint size;
\rchar *prompt;
\rint verify;
\r {
\r memset(buf,0,size);
\r memset(buff,0,size);
\r return(0);
\r }
\r\r#endif
\r\rstatic void pushsig()
\r {
\r int i;
\r\r for (i=1; i<NX509_SIG; i++)
\r savsig[i]=signal(i,recsig);
\r\r#ifdef SIGWINCH
\r signal(SIGWINCH,SIG_DFL);
\r#endif
\r }
\r\rstatic void popsig()
\r {
\r int i;
\r\r for (i=1; i<NX509_SIG; i++)
\r signal(i,savsig[i]);
\r }
\r\rstatic void recsig(i)
\rint i;
\r {
\r longjmp(save,1);
\r#ifdef LINT
\r i=i;
\r#endif
\r }
\r\r#if defined(MSDOS) && !defined(WIN16)
\rstatic int noecho_fgets(buf,size,tty)
\rchar *buf;
\rint size;
\rFILE *tty;
\r {
\r int i;
\r char *p;
\r\r p=buf;
\r for (;;)
\r {
\r if (size == 0)
\r {
\r *p='\0';
\r break;
\r }
\r size--;
\r#ifdef WIN16TTY
\r i=_inchar();
\r#else
\r i=getch();
\r#endif
\r if (i == '\r') i='\n';
\r *(p++)=i;
\r if (i == '\n')
\r {
\r *p='\0';
\r break;
\r }
\r }
\r return(strlen(buf));
\r }
\r#endif
\r
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