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openssl/crypto/des/read_pwd.c
Corinna Vinschen 732c5a6b92 Drop redundant and outdated __CYGWIN32__ tests. 
Change OPENSSL_SYSNAME_CYGWIN32 to OPENSSL_SYSNAME_CYGWIN.
Drop outdated Cygwin targets.

RT#3605
Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 12:55:25 +01:00

496 lines
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/* crypto/des/read_pwd.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <openssl/e_os2.h>
#if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_WIN32)
# ifdef OPENSSL_UNISTD
# include OPENSSL_UNISTD
# else
# include <unistd.h>
# endif
/*
* If unistd.h defines _POSIX_VERSION, we conclude that we are on a POSIX
* system and have sigaction and termios.
*/
# if defined(_POSIX_VERSION)
# define SIGACTION
# if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
# define TERMIOS
# endif
# endif
#endif
/* Define this if you have sigaction() */
/* #define SIGACTION */
/* 06-Apr-92 Luke Brennan Support for VMS */
#include "des_locl.h"
#include "cryptlib.h"
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <setjmp.h>
#include <errno.h>
#ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */
# include <starlet.h>
# ifdef __DECC
# pragma message disable DOLLARID
# endif
#endif
#ifdef WIN_CONSOLE_BUG
# include <windows.h>
# ifndef OPENSSL_SYS_WINCE
# include <wincon.h>
# endif
#endif
/*
* There are 5 types of terminal interface supported, TERMIO, TERMIOS, VMS,
* MSDOS and SGTTY
*/
#if defined(__sgi) && !defined(TERMIOS)
# define TERMIOS
# undef TERMIO
# undef SGTTY
#endif
#if defined(linux) && !defined(TERMIO)
# undef TERMIOS
# define TERMIO
# undef SGTTY
#endif
#ifdef _LIBC
# undef TERMIOS
# define TERMIO
# undef SGTTY
#endif
#if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS)
# undef TERMIOS
# undef TERMIO
# define SGTTY
#endif
#if defined(OPENSSL_SYS_VXWORKS)
# undef TERMIOS
# undef TERMIO
# undef SGTTY
#endif
#ifdef TERMIOS
# include <termios.h>
# define TTY_STRUCT struct termios
# define TTY_FLAGS c_lflag
# define TTY_get(tty,data) tcgetattr(tty,data)
# define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data)
#endif
#ifdef TERMIO
# include <termio.h>
# define TTY_STRUCT struct termio
# define TTY_FLAGS c_lflag
# define TTY_get(tty,data) ioctl(tty,TCGETA,data)
# define TTY_set(tty,data) ioctl(tty,TCSETA,data)
#endif
#ifdef SGTTY
# include <sgtty.h>
# define TTY_STRUCT struct sgttyb
# define TTY_FLAGS sg_flags
# define TTY_get(tty,data) ioctl(tty,TIOCGETP,data)
# define TTY_set(tty,data) ioctl(tty,TIOCSETP,data)
#endif
#if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
# include <sys/ioctl.h>
#endif
#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WINCE)
# include <conio.h>
# define fgets(a,b,c) noecho_fgets(a,b,c)
#endif
#ifdef OPENSSL_SYS_VMS
# include <ssdef.h>
# include <iodef.h>
# include <ttdef.h>
# include <descrip.h>
struct IOSB {
short iosb$w_value;
short iosb$w_count;
long iosb$l_info;
};
#endif
#ifndef NX509_SIG
# define NX509_SIG 32
#endif
static void read_till_nl(FILE *);
static void recsig(int);
static void pushsig(void);
static void popsig(void);
#if defined(OPENSSL_SYS_MSDOS)
static int noecho_fgets(char *buf, int size, FILE *tty);
#endif
#ifdef SIGACTION
static struct sigaction savsig[NX509_SIG];
#else
static void (*savsig[NX509_SIG]) (int);
#endif
static jmp_buf save;
int des_read_pw_string(char *buf, int length, const char *prompt, int verify)
{
char buff[BUFSIZ];
int ret;
ret =
des_read_pw(buf, buff, (length > BUFSIZ) ? BUFSIZ : length, prompt,
verify);
OPENSSL_cleanse(buff, BUFSIZ);
return (ret);
}
#ifdef OPENSSL_SYS_WINCE
int des_read_pw(char *buf, char *buff, int size, const char *prompt,
int verify)
{
memset(buf, 0, size);
memset(buff, 0, size);
return (0);
}
#else /* !OPENSSL_SYS_WINCE */
static void read_till_nl(FILE *in)
{
# define SIZE 4
char buf[SIZE + 1];
do {
fgets(buf, SIZE, in);
} while (strchr(buf, '\n') == NULL);
}
/* return 0 if ok, 1 (or -1) otherwise */
int des_read_pw(char *buf, char *buff, int size, const char *prompt,
int verify)
{
# ifdef OPENSSL_SYS_VMS
struct IOSB iosb;
$DESCRIPTOR(terminal, "TT");
long tty_orig[3], tty_new[3];
long status;
unsigned short channel = 0;
# else
# if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)
TTY_STRUCT tty_orig, tty_new;
# endif
# endif
int number;
int ok;
/*
* statics are simply to avoid warnings about longjmp clobbering things
*/
static int ps;
int is_a_tty;
static FILE *tty;
char *p;
if (setjmp(save)) {
ok = 0;
goto error;
}
number = 5;
ok = 0;
ps = 0;
is_a_tty = 1;
tty = NULL;
# ifdef OPENSSL_SYS_MSDOS
if ((tty = fopen("con", "r")) == NULL)
tty = stdin;
# elif defined(OPENSSL_SYS_VXWORKS)
tty = stdin;
# else
if ((tty = fopen("/dev/tty", "r")) == NULL)
tty = stdin;
# endif
# if defined(TTY_get) && !defined(OPENSSL_SYS_VMS)
if (TTY_get(fileno(tty), &tty_orig) == -1) {
# ifdef ENOTTY
if (errno == ENOTTY)
is_a_tty = 0;
else
# endif
# ifdef EINVAL
/*
* Ariel Glenn ariel@columbia.edu reports that solaris can return
* EINVAL instead. This should be ok
*/
if (errno == EINVAL)
is_a_tty = 0;
else
# endif
return (-1);
}
memcpy(&(tty_new), &(tty_orig), sizeof(tty_orig));
# endif
# ifdef OPENSSL_SYS_VMS
status = sys$assign(&terminal, &channel, 0, 0);
if (status != SS$_NORMAL)
return (-1);
status =
sys$qiow(0, channel, IO$_SENSEMODE, &iosb, 0, 0, tty_orig, 12, 0, 0,
0, 0);
if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
return (-1);
# endif
pushsig();
ps = 1;
# ifdef TTY_FLAGS
tty_new.TTY_FLAGS &= ~ECHO;
# endif
# if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
if (is_a_tty && (TTY_set(fileno(tty), &tty_new) == -1))
return (-1);
# endif
# ifdef OPENSSL_SYS_VMS
tty_new[0] = tty_orig[0];
tty_new[1] = tty_orig[1] | TT$M_NOECHO;
tty_new[2] = tty_orig[2];
status =
sys$qiow(0, channel, IO$_SETMODE, &iosb, 0, 0, tty_new, 12, 0, 0, 0,
0);
if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
return (-1);
# endif
ps = 2;
while ((!ok) && (number--)) {
fputs(prompt, stderr);
fflush(stderr);
buf[0] = '\0';
fgets(buf, size, tty);
if (feof(tty))
goto error;
if (ferror(tty))
goto error;
if ((p = (char *)strchr(buf, '\n')) != NULL)
*p = '\0';
else
read_till_nl(tty);
if (verify) {
fprintf(stderr, "\nVerifying password - %s", prompt);
fflush(stderr);
buff[0] = '\0';
fgets(buff, size, tty);
if (feof(tty))
goto error;
if ((p = (char *)strchr(buff, '\n')) != NULL)
*p = '\0';
else
read_till_nl(tty);
if (strcmp(buf, buff) != 0) {
fprintf(stderr, "\nVerify failure");
fflush(stderr);
break;
/* continue; */
}
}
ok = 1;
}
error:
fprintf(stderr, "\n");
# if 0
perror("fgets(tty)");
# endif
/* What can we do if there is an error? */
# if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
if (ps >= 2)
TTY_set(fileno(tty), &tty_orig);
# endif
# ifdef OPENSSL_SYS_VMS
if (ps >= 2)
status =
sys$qiow(0, channel, IO$_SETMODE, &iosb, 0, 0, tty_orig, 12, 0, 0,
0, 0);
# endif
if (ps >= 1)
popsig();
if (stdin != tty)
fclose(tty);
# ifdef OPENSSL_SYS_VMS
status = sys$dassgn(channel);
# endif
return (!ok);
}
static void pushsig(void)
{
int i;
# ifdef SIGACTION
struct sigaction sa;
memset(&sa, 0, sizeof sa);
sa.sa_handler = recsig;
# endif
for (i = 1; i < NX509_SIG; i++) {
# ifdef SIGUSR1
if (i == SIGUSR1)
continue;
# endif
# ifdef SIGUSR2
if (i == SIGUSR2)
continue;
# endif
# ifdef SIGACTION
sigaction(i, &sa, &savsig[i]);
# else
savsig[i] = signal(i, recsig);
# endif
}
# ifdef SIGWINCH
signal(SIGWINCH, SIG_DFL);
# endif
}
static void popsig(void)
{
int i;
for (i = 1; i < NX509_SIG; i++) {
# ifdef SIGUSR1
if (i == SIGUSR1)
continue;
# endif
# ifdef SIGUSR2
if (i == SIGUSR2)
continue;
# endif
# ifdef SIGACTION
sigaction(i, &savsig[i], NULL);
# else
signal(i, savsig[i]);
# endif
}
}
static void recsig(int i)
{
longjmp(save, 1);
}
# ifdef OPENSSL_SYS_MSDOS
static int noecho_fgets(char *buf, int size, FILE *tty)
{
int i;
char *p;
p = buf;
for (;;) {
if (size == 0) {
*p = '\0';
break;
}
size--;
i = getch();
if (i == '\r')
i = '\n';
*(p++) = i;
if (i == '\n') {
*p = '\0';
break;
}
}
# ifdef WIN_CONSOLE_BUG
/*
* Win95 has several evil console bugs: one of these is that the last
* character read using getch() is passed to the next read: this is
* usually a CR so this can be trouble. No STDIO fix seems to work but
* flushing the console appears to do the trick.
*/
{
HANDLE inh;
inh = GetStdHandle(STD_INPUT_HANDLE);
FlushConsoleInputBuffer(inh);
}
# endif
return (strlen(buf));
}
# endif
#endif /* !OPENSSL_SYS_WINCE */
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