diff options
Diffstat (limited to 'crypto/ui/ui_openssl.c')
| -rw-r--r-- | crypto/ui/ui_openssl.c | 575 |
1 files changed, 575 insertions, 0 deletions
diff --git a/crypto/ui/ui_openssl.c b/crypto/ui/ui_openssl.c new file mode 100644 index 0000000000..821b1d5d42 --- /dev/null +++ b/crypto/ui/ui_openssl.c @@ -0,0 +1,575 @@ +/* crypto/ui/ui_openssl.c -*- mode:C; c-file-style: "eay" -*- */ +/* Written by Richard Levitte (levitte@stacken.kth.se) for the OpenSSL + * project 2000. + */ +/* ==================================================================== + * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. + * + * 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 above 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 acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED 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 OpenSSL PROJECT OR + * ITS 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. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#if !defined(MSDOS) && !defined(VMS) && !defined(WIN32) +#include <openssl/opensslconf.h> +#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 WIN16 +#undef _WINDOWS +#include <graph.h> +#endif + +/* 06-Apr-92 Luke Brennan Support for VMS */ +#include "ui_locl.h" +#include "cryptlib.h" +#include <signal.h> +#include <stdio.h> +#include <string.h> +#include <setjmp.h> +#include <errno.h> + +#ifdef VMS /* prototypes for sys$whatever */ +#include <starlet.h> +#ifdef __DECC +#pragma message disable DOLLARID +#endif +#endif + +#ifdef WIN_CONSOLE_BUG +#include <windows.h> +#include <wincon.h> +#endif + + +/* There are 5 types of terminal interface supported, + * TERMIO, TERMIOS, VMS, MSDOS and SGTTY + */ + +#if defined(__sgi) && !defined(TERMIOS) +#define TERMIOS +#undef TERMIO +#undef SGTTY +#endif + +#if defined(linux) && !defined(TERMIO) +#undef TERMIOS +#define TERMIO +#undef SGTTY +#endif + +#ifdef _LIBC +#undef TERMIOS +#define TERMIO +#undef SGTTY +#endif + +#if !defined(TERMIO) && !defined(TERMIOS) && !defined(VMS) && !defined(MSDOS) && !defined(MAC_OS_pre_X) && !defined(MAC_OS_GUSI_SOURCE) +#undef TERMIOS +#undef TERMIO +#define SGTTY +#endif + +#ifdef TERMIOS +#include <termios.h> +#define TTY_STRUCT struct termios +#define TTY_FLAGS c_lflag +#define TTY_get(tty,data) tcgetattr(tty,data) +#define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data) +#endif + +#ifdef TERMIO +#include <termio.h> +#define TTY_STRUCT struct termio +#define TTY_FLAGS c_lflag +#define TTY_get(tty,data) ioctl(tty,TCGETA,data) +#define TTY_set(tty,data) ioctl(tty,TCSETA,data) +#endif + +#ifdef SGTTY +#include <sgtty.h> +#define TTY_STRUCT struct sgttyb +#define TTY_FLAGS sg_flags +#define TTY_get(tty,data) ioctl(tty,TIOCGETP,data) +#define TTY_set(tty,data) ioctl(tty,TIOCSETP,data) +#endif + +#if !defined(_LIBC) && !defined(MSDOS) && !defined(VMS) && !defined(MAC_OS_pre_X) +#include <sys/ioctl.h> +#endif + +#ifdef MSDOS +#include <conio.h> +#define fgets(a,b,c) noecho_fgets(a,b,c) +#endif + +#ifdef VMS +#include <ssdef.h> +#include <iodef.h> +#include <ttdef.h> +#include <descrip.h> +struct IOSB { + short iosb$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 + + +/* Define globals. They are protected by a lock */ +#ifdef SIGACTION +static struct sigaction savsig[NX509_SIG]; +#else +static void (*savsig[NX509_SIG])(int ); +#endif +static jmp_buf save; + +#ifdef VMS +static struct IOSB iosb; +static $DESCRIPTOR(terminal,"TT"); +static long tty_orig[3], tty_new[3]; +static long status; +static unsigned short channel = 0; +#else +#ifndef MSDOS +static TTY_STRUCT tty_orig,tty_new; +#endif +#endif +static FILE *tty; +static int is_a_tty; + +/* Declare static functions */ +static void read_till_nl(FILE *); +static void recsig(int); +static void pushsig(void); +static void popsig(void); +#if defined(MSDOS) && !defined(WIN16) +static int noecho_fgets(char *buf, int size, FILE *tty); +#endif +static int read_string_inner(UI *ui, UI_STRING *uis, int echo); + +static int read_string(UI *ui, UI_STRING *uis); + +static int open_console(UI *ui); +static int echo_console(UI *ui); +static int noecho_console(UI *ui); +static int close_console(UI *ui); + +static UI_METHOD ui_openssl = + { + "OpenSSL default user interface", + open_console, + read_string, + NULL, /* The reader function writes as well */ + close_console, + }; + +/* The method with all the built-in thingies */ +UI_METHOD *UI_OpenSSL(void) + { + return &ui_openssl; + } + +static int read_string(UI *ui, UI_STRING *uis) + { + switch (UI_get_string_type(uis)) + { + case UI_VERIFY_NOECHO: + fprintf(tty,"Verifying - %s", + UI_get0_output_string(uis)); + fflush(tty); + if (read_string_inner(ui, uis, 0) == 0) + return 0; + if (strcmp(UI_get0_result_string(uis), + UI_get0_test_string(uis)) != 0) + { + fprintf(tty,"Verify failure\n"); + fflush(tty); + return 0; + } + break; + case UI_VERIFY_ECHO: + fprintf(tty,"Verifying - %s", + UI_get0_output_string(uis)); + fflush(tty); + if (read_string_inner(ui, uis, 1) == 0) + return 0; + if (strcmp(UI_get0_result_string(uis), + UI_get0_test_string(uis)) != 0) + { + fprintf(tty,"Verify failure\n"); + fflush(tty); + return 0; + } + break; + case UI_STRING_NOECHO: + fputs(UI_get0_output_string(uis), tty); + fflush(tty); + return read_string_inner(ui, uis, 0); + case UI_STRING_ECHO: + fputs(UI_get0_output_string(uis), tty); + fflush(tty); + return read_string_inner(ui, uis, 1); + default: + fputs(UI_get0_output_string(uis), tty); + fflush(tty); + break; + } + return 1; + } + + +/* Internal functions to read a string without echoing */ +static void read_till_nl(FILE *in) + { +#define SIZE 4 + char buf[SIZE+1]; + + do { + fgets(buf,SIZE,in); + } while (strchr(buf,'\n') == NULL); + } + +static int read_string_inner(UI *ui, UI_STRING *uis, int echo) + { + static int ps; + int ok; + char *result = OPENSSL_malloc(BUFSIZ); + int maxsize = BUFSIZ-1; + +#ifndef WIN16 + if (setjmp(save)) + { + ok=0; + goto error; + } + ok=0; + ps=0; + + pushsig(); + ps=1; + + if (!echo) noecho_console(ui); + ps=2; + + while (!ok) + { + char *p; + + result[0]='\0'; + fgets(result,maxsize,tty); + if (feof(tty)) goto error; + if (ferror(tty)) goto error; + if ((p=(char *)strchr(result,'\n')) != NULL) + *p='\0'; + else read_till_nl(tty); + if (UI_set_result(uis, result) >= 0) + ok=1; + } + +error: + if (!echo) fprintf(tty,"\n"); + if (ps >= 2 && !echo) + echo_console(ui); + + if (ps >= 1) + popsig(); +#else + memset(result,0,BUFSIZ); + ok=1; +#endif + + OPENSSL_free(result); + return ok; + } + + +/* Internal functions to open, handle and close a channel to the console. */ +static int open_console(UI *ui) + { + CRYPTO_w_lock(CRYPTO_LOCK_UI); + is_a_tty = 1; + +#ifdef MSDOS + if ((tty=fopen("con","w+")) == NULL) + tty=stdin; +#elif defined(MAC_OS_pre_X) + tty=stdin; +#else + if ((tty=fopen("/dev/tty","w+")) == NULL) + tty=stdin; +#endif + +#if defined(TTY_get) && !defined(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 0; + } +#endif +#ifdef VMS + status = sys$assign(&terminal,&channel,0,0); + if (status != SS$_NORMAL) + return 0; + status=sys$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 0; +#endif + return 1; + } + +static int noecho_console(UI *ui) + { +#ifdef TTY_FLAGS + memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig)); + tty_new.TTY_FLAGS &= ~ECHO; +#endif + +#if defined(TTY_set) && !defined(VMS) + if (is_a_tty && (TTY_set(fileno(tty),&tty_new) == -1)) + return 0; +#endif +#ifdef 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 0; +#endif + return 1; + } + +static int echo_console(UI *ui) + { +#if defined(TTY_set) && !defined(VMS) + memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig)); + tty_new.TTY_FLAGS |= ECHO; +#endif + +#if defined(TTY_set) && !defined(VMS) + if (is_a_tty && (TTY_set(fileno(tty),&tty_new) == -1)) + return 0; +#endif +#ifdef 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 0; +#endif + return 1; + } + +static int close_console(UI *ui) + { + if (stdin != tty) fclose(tty); +#ifdef VMS + status = sys$dassgn(channel); +#endif + CRYPTO_w_unlock(CRYPTO_LOCK_UI); + + return 1; + } + + +/* Internal functions to handle signals and act on them */ +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 SIGKILL + if (i == SIGKILL) /* We can't make any action on that. */ + 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 + } + + +/* Internal functions specific for Windows */ +#if defined(MSDOS) && !defined(WIN16) +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 |