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| 1 /* crypto/des/read_pwd.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 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. | |
| 8 * | |
| 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). | |
| 15 * | |
| 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. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 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)" | |
| 40 * | |
| 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 | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 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.] | |
| 57 */ | |
| 58 | |
| 59 #include <openssl/e_os2.h> | |
| 60 #if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL
_SYS_WIN32) | |
| 61 #ifdef OPENSSL_UNISTD | |
| 62 # include OPENSSL_UNISTD | |
| 63 #else | |
| 64 # include <unistd.h> | |
| 65 #endif | |
| 66 /* If unistd.h defines _POSIX_VERSION, we conclude that we | |
| 67 * are on a POSIX system and have sigaction and termios. */ | |
| 68 #if defined(_POSIX_VERSION) | |
| 69 | |
| 70 # define SIGACTION | |
| 71 # if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY) | |
| 72 # define TERMIOS | |
| 73 # endif | |
| 74 | |
| 75 #endif | |
| 76 #endif | |
| 77 | |
| 78 /* #define SIGACTION */ /* Define this if you have sigaction() */ | |
| 79 | |
| 80 #ifdef WIN16TTY | |
| 81 #undef OPENSSL_SYS_WIN16 | |
| 82 #undef _WINDOWS | |
| 83 #include <graph.h> | |
| 84 #endif | |
| 85 | |
| 86 /* 06-Apr-92 Luke Brennan Support for VMS */ | |
| 87 #include "des_locl.h" | |
| 88 #include "cryptlib.h" | |
| 89 #include <signal.h> | |
| 90 #include <stdio.h> | |
| 91 #include <string.h> | |
| 92 #include <setjmp.h> | |
| 93 #include <errno.h> | |
| 94 | |
| 95 #ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */ | |
| 96 #include <starlet.h> | |
| 97 #ifdef __DECC | |
| 98 #pragma message disable DOLLARID | |
| 99 #endif | |
| 100 #endif | |
| 101 | |
| 102 #ifdef WIN_CONSOLE_BUG | |
| 103 #include <windows.h> | |
| 104 #ifndef OPENSSL_SYS_WINCE | |
| 105 #include <wincon.h> | |
| 106 #endif | |
| 107 #endif | |
| 108 | |
| 109 | |
| 110 /* There are 5 types of terminal interface supported, | |
| 111 * TERMIO, TERMIOS, VMS, MSDOS and SGTTY | |
| 112 */ | |
| 113 | |
| 114 #if defined(__sgi) && !defined(TERMIOS) | |
| 115 #define TERMIOS | |
| 116 #undef TERMIO | |
| 117 #undef SGTTY | |
| 118 #endif | |
| 119 | |
| 120 #if defined(linux) && !defined(TERMIO) | |
| 121 #undef TERMIOS | |
| 122 #define TERMIO | |
| 123 #undef SGTTY | |
| 124 #endif | |
| 125 | |
| 126 #ifdef _LIBC | |
| 127 #undef TERMIOS | |
| 128 #define TERMIO | |
| 129 #undef SGTTY | |
| 130 #endif | |
| 131 | |
| 132 #if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defin
ed(OPENSSL_SYS_MSDOS) && !defined(MAC_OS_pre_X) && !defined(MAC_OS_GUSI_SOURCE) | |
| 133 #undef TERMIOS | |
| 134 #undef TERMIO | |
| 135 #define SGTTY | |
| 136 #endif | |
| 137 | |
| 138 #if defined(OPENSSL_SYS_VXWORKS) | |
| 139 #undef TERMIOS | |
| 140 #undef TERMIO | |
| 141 #undef SGTTY | |
| 142 #endif | |
| 143 | |
| 144 #ifdef TERMIOS | |
| 145 #include <termios.h> | |
| 146 #define TTY_STRUCT struct termios | |
| 147 #define TTY_FLAGS c_lflag | |
| 148 #define TTY_get(tty,data) tcgetattr(tty,data) | |
| 149 #define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data) | |
| 150 #endif | |
| 151 | |
| 152 #ifdef TERMIO | |
| 153 #include <termio.h> | |
| 154 #define TTY_STRUCT struct termio | |
| 155 #define TTY_FLAGS c_lflag | |
| 156 #define TTY_get(tty,data) ioctl(tty,TCGETA,data) | |
| 157 #define TTY_set(tty,data) ioctl(tty,TCSETA,data) | |
| 158 #endif | |
| 159 | |
| 160 #ifdef SGTTY | |
| 161 #include <sgtty.h> | |
| 162 #define TTY_STRUCT struct sgttyb | |
| 163 #define TTY_FLAGS sg_flags | |
| 164 #define TTY_get(tty,data) ioctl(tty,TIOCGETP,data) | |
| 165 #define TTY_set(tty,data) ioctl(tty,TIOCSETP,data) | |
| 166 #endif | |
| 167 | |
| 168 #if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
&& !defined(MAC_OS_pre_X) | |
| 169 #include <sys/ioctl.h> | |
| 170 #endif | |
| 171 | |
| 172 #if defined(OPENSSL_SYS_MSDOS) && !defined(__CYGWIN32__) && !defined(OPENSSL_SYS
_WINCE) | |
| 173 #include <conio.h> | |
| 174 #define fgets(a,b,c) noecho_fgets(a,b,c) | |
| 175 #endif | |
| 176 | |
| 177 #ifdef OPENSSL_SYS_VMS | |
| 178 #include <ssdef.h> | |
| 179 #include <iodef.h> | |
| 180 #include <ttdef.h> | |
| 181 #include <descrip.h> | |
| 182 struct IOSB { | |
| 183 short iosb$w_value; | |
| 184 short iosb$w_count; | |
| 185 long iosb$l_info; | |
| 186 }; | |
| 187 #endif | |
| 188 | |
| 189 #if defined(MAC_OS_pre_X) || defined(MAC_OS_GUSI_SOURCE) | |
| 190 /* | |
| 191 * This one needs work. As a matter of fact the code is unoperational | |
| 192 * and this is only a trick to get it compiled. | |
| 193 * <appro@fy.chalmers.se> | |
| 194 */ | |
| 195 #define TTY_STRUCT int | |
| 196 #endif | |
| 197 | |
| 198 #ifndef NX509_SIG | |
| 199 #define NX509_SIG 32 | |
| 200 #endif | |
| 201 | |
| 202 static void read_till_nl(FILE *); | |
| 203 static void recsig(int); | |
| 204 static void pushsig(void); | |
| 205 static void popsig(void); | |
| 206 #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) | |
| 207 static int noecho_fgets(char *buf, int size, FILE *tty); | |
| 208 #endif | |
| 209 #ifdef SIGACTION | |
| 210 static struct sigaction savsig[NX509_SIG]; | |
| 211 #else | |
| 212 static void (*savsig[NX509_SIG])(int ); | |
| 213 #endif | |
| 214 static jmp_buf save; | |
| 215 | |
| 216 int des_read_pw_string(char *buf, int length, const char *prompt, | |
| 217 int verify) | |
| 218 { | |
| 219 char buff[BUFSIZ]; | |
| 220 int ret; | |
| 221 | |
| 222 ret=des_read_pw(buf,buff,(length>BUFSIZ)?BUFSIZ:length,prompt,verify); | |
| 223 OPENSSL_cleanse(buff,BUFSIZ); | |
| 224 return(ret); | |
| 225 } | |
| 226 | |
| 227 #ifdef OPENSSL_SYS_WINCE | |
| 228 | |
| 229 int des_read_pw(char *buf, char *buff, int size, const char *prompt, int verify) | |
| 230 { | |
| 231 memset(buf,0,size); | |
| 232 memset(buff,0,size); | |
| 233 return(0); | |
| 234 } | |
| 235 | |
| 236 #elif defined(OPENSSL_SYS_WIN16) | |
| 237 | |
| 238 int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify) | |
| 239 { | |
| 240 memset(buf,0,size); | |
| 241 memset(buff,0,size); | |
| 242 return(0); | |
| 243 } | |
| 244 | |
| 245 #else /* !OPENSSL_SYS_WINCE && !OPENSSL_SYS_WIN16 */ | |
| 246 | |
| 247 static void read_till_nl(FILE *in) | |
| 248 { | |
| 249 #define SIZE 4 | |
| 250 char buf[SIZE+1]; | |
| 251 | |
| 252 do { | |
| 253 fgets(buf,SIZE,in); | |
| 254 } while (strchr(buf,'\n') == NULL); | |
| 255 } | |
| 256 | |
| 257 | |
| 258 /* return 0 if ok, 1 (or -1) otherwise */ | |
| 259 int des_read_pw(char *buf, char *buff, int size, const char *prompt, | |
| 260 int verify) | |
| 261 { | |
| 262 #ifdef OPENSSL_SYS_VMS | |
| 263 struct IOSB iosb; | |
| 264 $DESCRIPTOR(terminal,"TT"); | |
| 265 long tty_orig[3], tty_new[3]; | |
| 266 long status; | |
| 267 unsigned short channel = 0; | |
| 268 #else | |
| 269 #if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__) | |
| 270 TTY_STRUCT tty_orig,tty_new; | |
| 271 #endif | |
| 272 #endif | |
| 273 int number; | |
| 274 int ok; | |
| 275 /* statics are simply to avoid warnings about longjmp clobbering | |
| 276 things */ | |
| 277 static int ps; | |
| 278 int is_a_tty; | |
| 279 static FILE *tty; | |
| 280 char *p; | |
| 281 | |
| 282 if (setjmp(save)) | |
| 283 { | |
| 284 ok=0; | |
| 285 goto error; | |
| 286 } | |
| 287 | |
| 288 number=5; | |
| 289 ok=0; | |
| 290 ps=0; | |
| 291 is_a_tty=1; | |
| 292 tty=NULL; | |
| 293 | |
| 294 #ifdef OPENSSL_SYS_MSDOS | |
| 295 if ((tty=fopen("con","r")) == NULL) | |
| 296 tty=stdin; | |
| 297 #elif defined(MAC_OS_pre_X) || defined(OPENSSL_SYS_VXWORKS) | |
| 298 tty=stdin; | |
| 299 #else | |
| 300 #ifndef OPENSSL_SYS_MPE | |
| 301 if ((tty=fopen("/dev/tty","r")) == NULL) | |
| 302 #endif | |
| 303 tty=stdin; | |
| 304 #endif | |
| 305 | |
| 306 #if defined(TTY_get) && !defined(OPENSSL_SYS_VMS) | |
| 307 if (TTY_get(fileno(tty),&tty_orig) == -1) | |
| 308 { | |
| 309 #ifdef ENOTTY | |
| 310 if (errno == ENOTTY) | |
| 311 is_a_tty=0; | |
| 312 else | |
| 313 #endif | |
| 314 #ifdef EINVAL | |
| 315 /* Ariel Glenn ariel@columbia.edu reports that solaris | |
| 316 * can return EINVAL instead. This should be ok */ | |
| 317 if (errno == EINVAL) | |
| 318 is_a_tty=0; | |
| 319 else | |
| 320 #endif | |
| 321 return(-1); | |
| 322 } | |
| 323 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig)); | |
| 324 #endif | |
| 325 #ifdef OPENSSL_SYS_VMS | |
| 326 status = sys$assign(&terminal,&channel,0,0); | |
| 327 if (status != SS$_NORMAL) | |
| 328 return(-1); | |
| 329 status=sys$qiow(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0); | |
| 330 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL)) | |
| 331 return(-1); | |
| 332 #endif | |
| 333 | |
| 334 pushsig(); | |
| 335 ps=1; | |
| 336 | |
| 337 #ifdef TTY_FLAGS | |
| 338 tty_new.TTY_FLAGS &= ~ECHO; | |
| 339 #endif | |
| 340 | |
| 341 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS) | |
| 342 if (is_a_tty && (TTY_set(fileno(tty),&tty_new) == -1)) | |
| 343 #ifdef OPENSSL_SYS_MPE | |
| 344 ; /* MPE lies -- echo really has been disabled */ | |
| 345 #else | |
| 346 return(-1); | |
| 347 #endif | |
| 348 #endif | |
| 349 #ifdef OPENSSL_SYS_VMS | |
| 350 tty_new[0] = tty_orig[0]; | |
| 351 tty_new[1] = tty_orig[1] | TT$M_NOECHO; | |
| 352 tty_new[2] = tty_orig[2]; | |
| 353 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0); | |
| 354 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL)) | |
| 355 return(-1); | |
| 356 #endif | |
| 357 ps=2; | |
| 358 | |
| 359 while ((!ok) && (number--)) | |
| 360 { | |
| 361 fputs(prompt,stderr); | |
| 362 fflush(stderr); | |
| 363 | |
| 364 buf[0]='\0'; | |
| 365 fgets(buf,size,tty); | |
| 366 if (feof(tty)) goto error; | |
| 367 if (ferror(tty)) goto error; | |
| 368 if ((p=(char *)strchr(buf,'\n')) != NULL) | |
| 369 *p='\0'; | |
| 370 else read_till_nl(tty); | |
| 371 if (verify) | |
| 372 { | |
| 373 fprintf(stderr,"\nVerifying password - %s",prompt); | |
| 374 fflush(stderr); | |
| 375 buff[0]='\0'; | |
| 376 fgets(buff,size,tty); | |
| 377 if (feof(tty)) goto error; | |
| 378 if ((p=(char *)strchr(buff,'\n')) != NULL) | |
| 379 *p='\0'; | |
| 380 else read_till_nl(tty); | |
| 381 | |
| 382 if (strcmp(buf,buff) != 0) | |
| 383 { | |
| 384 fprintf(stderr,"\nVerify failure"); | |
| 385 fflush(stderr); | |
| 386 break; | |
| 387 /* continue; */ | |
| 388 } | |
| 389 } | |
| 390 ok=1; | |
| 391 } | |
| 392 | |
| 393 error: | |
| 394 fprintf(stderr,"\n"); | |
| 395 #if 0 | |
| 396 perror("fgets(tty)"); | |
| 397 #endif | |
| 398 /* What can we do if there is an error? */ | |
| 399 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS) | |
| 400 if (ps >= 2) TTY_set(fileno(tty),&tty_orig); | |
| 401 #endif | |
| 402 #ifdef OPENSSL_SYS_VMS | |
| 403 if (ps >= 2) | |
| 404 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0 | |
| 405 ,tty_orig,12,0,0,0,0); | |
| 406 #endif | |
| 407 | |
| 408 if (ps >= 1) popsig(); | |
| 409 if (stdin != tty) fclose(tty); | |
| 410 #ifdef OPENSSL_SYS_VMS | |
| 411 status = sys$dassgn(channel); | |
| 412 #endif | |
| 413 return(!ok); | |
| 414 } | |
| 415 | |
| 416 static void pushsig(void) | |
| 417 { | |
| 418 int i; | |
| 419 #ifdef SIGACTION | |
| 420 struct sigaction sa; | |
| 421 | |
| 422 memset(&sa,0,sizeof sa); | |
| 423 sa.sa_handler=recsig; | |
| 424 #endif | |
| 425 | |
| 426 for (i=1; i<NX509_SIG; i++) | |
| 427 { | |
| 428 #ifdef SIGUSR1 | |
| 429 if (i == SIGUSR1) | |
| 430 continue; | |
| 431 #endif | |
| 432 #ifdef SIGUSR2 | |
| 433 if (i == SIGUSR2) | |
| 434 continue; | |
| 435 #endif | |
| 436 #ifdef SIGACTION | |
| 437 sigaction(i,&sa,&savsig[i]); | |
| 438 #else | |
| 439 savsig[i]=signal(i,recsig); | |
| 440 #endif | |
| 441 } | |
| 442 | |
| 443 #ifdef SIGWINCH | |
| 444 signal(SIGWINCH,SIG_DFL); | |
| 445 #endif | |
| 446 } | |
| 447 | |
| 448 static void popsig(void) | |
| 449 { | |
| 450 int i; | |
| 451 | |
| 452 for (i=1; i<NX509_SIG; i++) | |
| 453 { | |
| 454 #ifdef SIGUSR1 | |
| 455 if (i == SIGUSR1) | |
| 456 continue; | |
| 457 #endif | |
| 458 #ifdef SIGUSR2 | |
| 459 if (i == SIGUSR2) | |
| 460 continue; | |
| 461 #endif | |
| 462 #ifdef SIGACTION | |
| 463 sigaction(i,&savsig[i],NULL); | |
| 464 #else | |
| 465 signal(i,savsig[i]); | |
| 466 #endif | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 static void recsig(int i) | |
| 471 { | |
| 472 longjmp(save,1); | |
| 473 #ifdef LINT | |
| 474 i=i; | |
| 475 #endif | |
| 476 } | |
| 477 | |
| 478 #ifdef OPENSSL_SYS_MSDOS | |
| 479 static int noecho_fgets(char *buf, int size, FILE *tty) | |
| 480 { | |
| 481 int i; | |
| 482 char *p; | |
| 483 | |
| 484 p=buf; | |
| 485 for (;;) | |
| 486 { | |
| 487 if (size == 0) | |
| 488 { | |
| 489 *p='\0'; | |
| 490 break; | |
| 491 } | |
| 492 size--; | |
| 493 #ifdef WIN16TTY | |
| 494 i=_inchar(); | |
| 495 #else | |
| 496 i=getch(); | |
| 497 #endif | |
| 498 if (i == '\r') i='\n'; | |
| 499 *(p++)=i; | |
| 500 if (i == '\n') | |
| 501 { | |
| 502 *p='\0'; | |
| 503 break; | |
| 504 } | |
| 505 } | |
| 506 #ifdef WIN_CONSOLE_BUG | |
| 507 /* Win95 has several evil console bugs: one of these is that the | |
| 508 * last character read using getch() is passed to the next read: this is | |
| 509 * usually a CR so this can be trouble. No STDIO fix seems to work but | |
| 510 * flushing the console appears to do the trick. | |
| 511 */ | |
| 512 { | |
| 513 HANDLE inh; | |
| 514 inh = GetStdHandle(STD_INPUT_HANDLE); | |
| 515 FlushConsoleInputBuffer(inh); | |
| 516 } | |
| 517 #endif | |
| 518 return(strlen(buf)); | |
| 519 } | |
| 520 #endif | |
| 521 #endif /* !OPENSSL_SYS_WINCE && !WIN16 */ | |
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