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Diffstat (limited to 'openssl/crypto/des/read_pwd.c')
| -rw-r--r-- | openssl/crypto/des/read_pwd.c | 521 |
1 files changed, 521 insertions, 0 deletions
diff --git a/openssl/crypto/des/read_pwd.c b/openssl/crypto/des/read_pwd.c new file mode 100644 index 000000000..ce5fa00a3 --- /dev/null +++ b/openssl/crypto/des/read_pwd.c @@ -0,0 +1,521 @@ +/* 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 SIGACTION */ /* Define this if you have sigaction() */ + +#ifdef WIN16TTY +#undef OPENSSL_SYS_WIN16 +#undef _WINDOWS +#include <graph.h> +#endif + +/* 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$whatever */ +#include <starlet.h> +#ifdef __DECC +#pragma message disable DOLLARID +#endif +#endif + +#ifdef WIN_CONSOLE_BUG +#include <windows.h> +#ifndef OPENSSL_SYS_WINCE +#include <wincon.h> +#endif +#endif + + +/* There are 5 types of terminal interface supported, + * TERMIO, TERMIOS, VMS, MSDOS and SGTTY + */ + +#if defined(__sgi) && !defined(TERMIOS) +#define TERMIOS +#undef TERMIO +#undef SGTTY +#endif + +#if defined(linux) && !defined(TERMIO) +#undef TERMIOS +#define TERMIO +#undef SGTTY +#endif + +#ifdef _LIBC +#undef TERMIOS +#define TERMIO +#undef SGTTY +#endif + +#if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(MAC_OS_pre_X) && !defined(MAC_OS_GUSI_SOURCE) +#undef TERMIOS +#undef TERMIO +#define SGTTY +#endif + +#if defined(OPENSSL_SYS_VXWORKS) +#undef TERMIOS +#undef TERMIO +#undef SGTTY +#endif + +#ifdef TERMIOS +#include <termios.h> +#define TTY_STRUCT struct termios +#define TTY_FLAGS c_lflag +#define TTY_get(tty,data) tcgetattr(tty,data) +#define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data) +#endif + +#ifdef TERMIO +#include <termio.h> +#define TTY_STRUCT struct termio +#define TTY_FLAGS c_lflag +#define TTY_get(tty,data) ioctl(tty,TCGETA,data) +#define TTY_set(tty,data) ioctl(tty,TCSETA,data) +#endif + +#ifdef SGTTY +#include <sgtty.h> +#define TTY_STRUCT struct sgttyb +#define TTY_FLAGS sg_flags +#define TTY_get(tty,data) ioctl(tty,TIOCGETP,data) +#define TTY_set(tty,data) ioctl(tty,TIOCSETP,data) +#endif + +#if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(MAC_OS_pre_X) +#include <sys/ioctl.h> +#endif + +#if defined(OPENSSL_SYS_MSDOS) && !defined(__CYGWIN32__) && !defined(OPENSSL_SYS_WINCE) +#include <conio.h> +#define fgets(a,b,c) noecho_fgets(a,b,c) +#endif + +#ifdef OPENSSL_SYS_VMS +#include <ssdef.h> +#include <iodef.h> +#include <ttdef.h> +#include <descrip.h> +struct IOSB { + short iosb$w_value; + short iosb$w_count; + long iosb$l_info; + }; +#endif + +#if defined(MAC_OS_pre_X) || defined(MAC_OS_GUSI_SOURCE) +/* + * This one needs work. As a matter of fact the code is unoperational + * and this is only a trick to get it compiled. + * <appro@fy.chalmers.se> + */ +#define TTY_STRUCT int +#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) && !defined(OPENSSL_SYS_WIN16) +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); + } + +#elif defined(OPENSSL_SYS_WIN16) + +int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify) + { + memset(buf,0,size); + memset(buff,0,size); + return(0); + } + +#else /* !OPENSSL_SYS_WINCE && !OPENSSL_SYS_WIN16 */ + +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; + $DESCRIPTOR(terminal,"TT"); + long tty_orig[3], tty_new[3]; + long status; + unsigned short channel = 0; +#else +#if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__) + TTY_STRUCT tty_orig,tty_new; +#endif +#endif + int number; + int ok; + /* statics are simply to avoid warnings about longjmp clobbering + things */ + static int ps; + int is_a_tty; + static FILE *tty; + char *p; + + if (setjmp(save)) + { + ok=0; + goto error; + } + + number=5; + ok=0; + ps=0; + is_a_tty=1; + tty=NULL; + +#ifdef OPENSSL_SYS_MSDOS + if ((tty=fopen("con","r")) == NULL) + tty=stdin; +#elif defined(MAC_OS_pre_X) || defined(OPENSSL_SYS_VXWORKS) + tty=stdin; +#else +#ifndef OPENSSL_SYS_MPE + if ((tty=fopen("/dev/tty","r")) == NULL) +#endif + tty=stdin; +#endif + +#if defined(TTY_get) && !defined(OPENSSL_SYS_VMS) + if (TTY_get(fileno(tty),&tty_orig) == -1) + { +#ifdef ENOTTY + if (errno == ENOTTY) + is_a_tty=0; + else +#endif +#ifdef EINVAL + /* Ariel Glenn ariel@columbia.edu reports that solaris + * can return EINVAL instead. This should be ok */ + if (errno == EINVAL) + is_a_tty=0; + else +#endif + return(-1); + } + memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig)); +#endif +#ifdef OPENSSL_SYS_VMS + status = sys$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)) +#ifdef OPENSSL_SYS_MPE + ; /* MPE lies -- echo really has been disabled */ +#else + return(-1); +#endif +#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 LINT + i=i; +#endif + } + +#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--; +#ifdef WIN16TTY + i=_inchar(); +#else + i=getch(); +#endif + 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 && !WIN16 */ |