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| 1 /* crypto/bio/bss_file.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 /* | |
| 60 * 03-Dec-1997 rdenny@dc3.com Fix bug preventing use of stdin/stdout | |
| 61 * with binary data (e.g. asn1parse -inform DER < xxx) under | |
| 62 * Windows | |
| 63 */ | |
| 64 | |
| 65 #ifndef HEADER_BSS_FILE_C | |
| 66 #define HEADER_BSS_FILE_C | |
| 67 | |
| 68 #if defined(__linux) || defined(__sun) || defined(__hpux) | |
| 69 /* Following definition aliases fopen to fopen64 on above mentioned | |
| 70 * platforms. This makes it possible to open and sequentially access | |
| 71 * files larger than 2GB from 32-bit application. It does not allow to | |
| 72 * traverse them beyond 2GB with fseek/ftell, but on the other hand *no* | |
| 73 * 32-bit platform permits that, not with fseek/ftell. Not to mention | |
| 74 * that breaking 2GB limit for seeking would require surgery to *our* | |
| 75 * API. But sequential access suffices for practical cases when you | |
| 76 * can run into large files, such as fingerprinting, so we can let API | |
| 77 * alone. For reference, the list of 32-bit platforms which allow for | |
| 78 * sequential access of large files without extra "magic" comprise *BSD, | |
| 79 * Darwin, IRIX... | |
| 80 */ | |
| 81 #ifndef _FILE_OFFSET_BITS | |
| 82 #define _FILE_OFFSET_BITS 64 | |
| 83 #endif | |
| 84 #endif | |
| 85 | |
| 86 #include <stdio.h> | |
| 87 #include <errno.h> | |
| 88 #include "cryptlib.h" | |
| 89 #include "bio_lcl.h" | |
| 90 #include <openssl/err.h> | |
| 91 | |
| 92 #if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB) | |
| 93 #include <nwfileio.h> | |
| 94 #endif | |
| 95 | |
| 96 #if !defined(OPENSSL_NO_STDIO) | |
| 97 | |
| 98 static int MS_CALLBACK file_write(BIO *h, const char *buf, int num); | |
| 99 static int MS_CALLBACK file_read(BIO *h, char *buf, int size); | |
| 100 static int MS_CALLBACK file_puts(BIO *h, const char *str); | |
| 101 static int MS_CALLBACK file_gets(BIO *h, char *str, int size); | |
| 102 static long MS_CALLBACK file_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
| 103 static int MS_CALLBACK file_new(BIO *h); | |
| 104 static int MS_CALLBACK file_free(BIO *data); | |
| 105 static BIO_METHOD methods_filep= | |
| 106 { | |
| 107 BIO_TYPE_FILE, | |
| 108 "FILE pointer", | |
| 109 file_write, | |
| 110 file_read, | |
| 111 file_puts, | |
| 112 file_gets, | |
| 113 file_ctrl, | |
| 114 file_new, | |
| 115 file_free, | |
| 116 NULL, | |
| 117 }; | |
| 118 | |
| 119 BIO *BIO_new_file(const char *filename, const char *mode) | |
| 120 { | |
| 121 BIO *ret; | |
| 122 FILE *file=NULL; | |
| 123 | |
| 124 #if defined(_WIN32) && defined(CP_UTF8) | |
| 125 int sz, len_0 = (int)strlen(filename)+1; | |
| 126 DWORD flags; | |
| 127 | |
| 128 /* | |
| 129 * Basically there are three cases to cover: a) filename is | |
| 130 * pure ASCII string; b) actual UTF-8 encoded string and | |
| 131 * c) locale-ized string, i.e. one containing 8-bit | |
| 132 * characters that are meaningful in current system locale. | |
| 133 * If filename is pure ASCII or real UTF-8 encoded string, | |
| 134 * MultiByteToWideChar succeeds and _wfopen works. If | |
| 135 * filename is locale-ized string, chances are that | |
| 136 * MultiByteToWideChar fails reporting | |
| 137 * ERROR_NO_UNICODE_TRANSLATION, in which case we fall | |
| 138 * back to fopen... | |
| 139 */ | |
| 140 if ((sz=MultiByteToWideChar(CP_UTF8,(flags=MB_ERR_INVALID_CHARS), | |
| 141 filename,len_0,NULL,0))>0 || | |
| 142 (GetLastError()==ERROR_INVALID_FLAGS && | |
| 143 (sz=MultiByteToWideChar(CP_UTF8,(flags=0), | |
| 144 filename,len_0,NULL,0))>0) | |
| 145 ) | |
| 146 { | |
| 147 WCHAR wmode[8]; | |
| 148 WCHAR *wfilename = _alloca(sz*sizeof(WCHAR)); | |
| 149 | |
| 150 if (MultiByteToWideChar(CP_UTF8,flags, | |
| 151 filename,len_0,wfilename,sz) && | |
| 152 MultiByteToWideChar(CP_UTF8,0,mode,strlen(mode)+1, | |
| 153 wmode,sizeof(wmode)/sizeof(wmode[0])) && | |
| 154 (file=_wfopen(wfilename,wmode))==NULL && | |
| 155 (errno==ENOENT || errno==EBADF) | |
| 156 ) /* UTF-8 decode succeeded, but no file, filename | |
| 157 * could still have been locale-ized... */ | |
| 158 file = fopen(filename,mode); | |
| 159 } | |
| 160 else if (GetLastError()==ERROR_NO_UNICODE_TRANSLATION) | |
| 161 { | |
| 162 file = fopen(filename,mode); | |
| 163 } | |
| 164 #else | |
| 165 file=fopen(filename,mode); | |
| 166 #endif | |
| 167 if (file == NULL) | |
| 168 { | |
| 169 SYSerr(SYS_F_FOPEN,get_last_sys_error()); | |
| 170 ERR_add_error_data(5,"fopen('",filename,"','",mode,"')"); | |
| 171 if (errno == ENOENT) | |
| 172 BIOerr(BIO_F_BIO_NEW_FILE,BIO_R_NO_SUCH_FILE); | |
| 173 else | |
| 174 BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB); | |
| 175 return(NULL); | |
| 176 } | |
| 177 if ((ret=BIO_new(BIO_s_file())) == NULL) | |
| 178 { | |
| 179 fclose(file); | |
| 180 return(NULL); | |
| 181 } | |
| 182 | |
| 183 BIO_clear_flags(ret,BIO_FLAGS_UPLINK); /* we did fopen -> we disengage U
PLINK */ | |
| 184 BIO_set_fp(ret,file,BIO_CLOSE); | |
| 185 return(ret); | |
| 186 } | |
| 187 | |
| 188 BIO *BIO_new_fp(FILE *stream, int close_flag) | |
| 189 { | |
| 190 BIO *ret; | |
| 191 | |
| 192 if ((ret=BIO_new(BIO_s_file())) == NULL) | |
| 193 return(NULL); | |
| 194 | |
| 195 BIO_set_flags(ret,BIO_FLAGS_UPLINK); /* redundant, left for documentatio
n puposes */ | |
| 196 BIO_set_fp(ret,stream,close_flag); | |
| 197 return(ret); | |
| 198 } | |
| 199 | |
| 200 BIO_METHOD *BIO_s_file(void) | |
| 201 { | |
| 202 return(&methods_filep); | |
| 203 } | |
| 204 | |
| 205 static int MS_CALLBACK file_new(BIO *bi) | |
| 206 { | |
| 207 bi->init=0; | |
| 208 bi->num=0; | |
| 209 bi->ptr=NULL; | |
| 210 bi->flags=BIO_FLAGS_UPLINK; /* default to UPLINK */ | |
| 211 return(1); | |
| 212 } | |
| 213 | |
| 214 static int MS_CALLBACK file_free(BIO *a) | |
| 215 { | |
| 216 if (a == NULL) return(0); | |
| 217 if (a->shutdown) | |
| 218 { | |
| 219 if ((a->init) && (a->ptr != NULL)) | |
| 220 { | |
| 221 if (a->flags&BIO_FLAGS_UPLINK) | |
| 222 UP_fclose (a->ptr); | |
| 223 else | |
| 224 fclose (a->ptr); | |
| 225 a->ptr=NULL; | |
| 226 a->flags=BIO_FLAGS_UPLINK; | |
| 227 } | |
| 228 a->init=0; | |
| 229 } | |
| 230 return(1); | |
| 231 } | |
| 232 | |
| 233 static int MS_CALLBACK file_read(BIO *b, char *out, int outl) | |
| 234 { | |
| 235 int ret=0; | |
| 236 | |
| 237 if (b->init && (out != NULL)) | |
| 238 { | |
| 239 if (b->flags&BIO_FLAGS_UPLINK) | |
| 240 ret=UP_fread(out,1,(int)outl,b->ptr); | |
| 241 else | |
| 242 ret=fread(out,1,(int)outl,(FILE *)b->ptr); | |
| 243 if(ret == 0 && (b->flags&BIO_FLAGS_UPLINK)?UP_ferror((FILE *)b->
ptr):ferror((FILE *)b->ptr)) | |
| 244 { | |
| 245 SYSerr(SYS_F_FREAD,get_last_sys_error()); | |
| 246 BIOerr(BIO_F_FILE_READ,ERR_R_SYS_LIB); | |
| 247 ret=-1; | |
| 248 } | |
| 249 } | |
| 250 return(ret); | |
| 251 } | |
| 252 | |
| 253 static int MS_CALLBACK file_write(BIO *b, const char *in, int inl) | |
| 254 { | |
| 255 int ret=0; | |
| 256 | |
| 257 if (b->init && (in != NULL)) | |
| 258 { | |
| 259 if (b->flags&BIO_FLAGS_UPLINK) | |
| 260 ret=UP_fwrite(in,(int)inl,1,b->ptr); | |
| 261 else | |
| 262 ret=fwrite(in,(int)inl,1,(FILE *)b->ptr); | |
| 263 if (ret) | |
| 264 ret=inl; | |
| 265 /* ret=fwrite(in,1,(int)inl,(FILE *)b->ptr); */ | |
| 266 /* according to Tim Hudson <tjh@cryptsoft.com>, the commented | |
| 267 * out version above can cause 'inl' write calls under | |
| 268 * some stupid stdio implementations (VMS) */ | |
| 269 } | |
| 270 return(ret); | |
| 271 } | |
| 272 | |
| 273 static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr) | |
| 274 { | |
| 275 long ret=1; | |
| 276 FILE *fp=(FILE *)b->ptr; | |
| 277 FILE **fpp; | |
| 278 char p[4]; | |
| 279 | |
| 280 switch (cmd) | |
| 281 { | |
| 282 case BIO_C_FILE_SEEK: | |
| 283 case BIO_CTRL_RESET: | |
| 284 if (b->flags&BIO_FLAGS_UPLINK) | |
| 285 ret=(long)UP_fseek(b->ptr,num,0); | |
| 286 else | |
| 287 ret=(long)fseek(fp,num,0); | |
| 288 break; | |
| 289 case BIO_CTRL_EOF: | |
| 290 if (b->flags&BIO_FLAGS_UPLINK) | |
| 291 ret=(long)UP_feof(fp); | |
| 292 else | |
| 293 ret=(long)feof(fp); | |
| 294 break; | |
| 295 case BIO_C_FILE_TELL: | |
| 296 case BIO_CTRL_INFO: | |
| 297 if (b->flags&BIO_FLAGS_UPLINK) | |
| 298 ret=UP_ftell(b->ptr); | |
| 299 else | |
| 300 ret=ftell(fp); | |
| 301 break; | |
| 302 case BIO_C_SET_FILE_PTR: | |
| 303 file_free(b); | |
| 304 b->shutdown=(int)num&BIO_CLOSE; | |
| 305 b->ptr=ptr; | |
| 306 b->init=1; | |
| 307 #if BIO_FLAGS_UPLINK!=0 | |
| 308 #if defined(__MINGW32__) && defined(__MSVCRT__) && !defined(_IOB_ENTRIES) | |
| 309 #define _IOB_ENTRIES 20 | |
| 310 #endif | |
| 311 #if defined(_IOB_ENTRIES) | |
| 312 /* Safety net to catch purely internal BIO_set_fp calls */ | |
| 313 if ((size_t)ptr >= (size_t)stdin && | |
| 314 (size_t)ptr < (size_t)(stdin+_IOB_ENTRIES)) | |
| 315 BIO_clear_flags(b,BIO_FLAGS_UPLINK); | |
| 316 #endif | |
| 317 #endif | |
| 318 #ifdef UP_fsetmod | |
| 319 if (b->flags&BIO_FLAGS_UPLINK) | |
| 320 UP_fsetmod(b->ptr,(char)((num&BIO_FP_TEXT)?'t':'b')); | |
| 321 else | |
| 322 #endif | |
| 323 { | |
| 324 #if defined(OPENSSL_SYS_WINDOWS) | |
| 325 int fd = _fileno((FILE*)ptr); | |
| 326 if (num & BIO_FP_TEXT) | |
| 327 _setmode(fd,_O_TEXT); | |
| 328 else | |
| 329 _setmode(fd,_O_BINARY); | |
| 330 #elif defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB) | |
| 331 int fd = fileno((FILE*)ptr); | |
| 332 /* Under CLib there are differences in file modes */ | |
| 333 if (num & BIO_FP_TEXT) | |
| 334 setmode(fd,O_TEXT); | |
| 335 else | |
| 336 setmode(fd,O_BINARY); | |
| 337 #elif defined(OPENSSL_SYS_MSDOS) | |
| 338 int fd = fileno((FILE*)ptr); | |
| 339 /* Set correct text/binary mode */ | |
| 340 if (num & BIO_FP_TEXT) | |
| 341 _setmode(fd,_O_TEXT); | |
| 342 /* Dangerous to set stdin/stdout to raw (unless redirected) */ | |
| 343 else | |
| 344 { | |
| 345 if (fd == STDIN_FILENO || fd == STDOUT_FILENO) | |
| 346 { | |
| 347 if (isatty(fd) <= 0) | |
| 348 _setmode(fd,_O_BINARY); | |
| 349 } | |
| 350 else | |
| 351 _setmode(fd,_O_BINARY); | |
| 352 } | |
| 353 #elif defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_WIN32_CYGWIN) | |
| 354 int fd = fileno((FILE*)ptr); | |
| 355 if (num & BIO_FP_TEXT) | |
| 356 setmode(fd, O_TEXT); | |
| 357 else | |
| 358 setmode(fd, O_BINARY); | |
| 359 #endif | |
| 360 } | |
| 361 break; | |
| 362 case BIO_C_SET_FILENAME: | |
| 363 file_free(b); | |
| 364 b->shutdown=(int)num&BIO_CLOSE; | |
| 365 if (num & BIO_FP_APPEND) | |
| 366 { | |
| 367 if (num & BIO_FP_READ) | |
| 368 BUF_strlcpy(p,"a+",sizeof p); | |
| 369 else BUF_strlcpy(p,"a",sizeof p); | |
| 370 } | |
| 371 else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE)) | |
| 372 BUF_strlcpy(p,"r+",sizeof p); | |
| 373 else if (num & BIO_FP_WRITE) | |
| 374 BUF_strlcpy(p,"w",sizeof p); | |
| 375 else if (num & BIO_FP_READ) | |
| 376 BUF_strlcpy(p,"r",sizeof p); | |
| 377 else | |
| 378 { | |
| 379 BIOerr(BIO_F_FILE_CTRL,BIO_R_BAD_FOPEN_MODE); | |
| 380 ret=0; | |
| 381 break; | |
| 382 } | |
| 383 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || defined(OPENSS
L_SYS_OS2) || defined(OPENSSL_SYS_WIN32_CYGWIN) | |
| 384 if (!(num & BIO_FP_TEXT)) | |
| 385 strcat(p,"b"); | |
| 386 else | |
| 387 strcat(p,"t"); | |
| 388 #endif | |
| 389 #if defined(OPENSSL_SYS_NETWARE) | |
| 390 if (!(num & BIO_FP_TEXT)) | |
| 391 strcat(p,"b"); | |
| 392 else | |
| 393 strcat(p,"t"); | |
| 394 #endif | |
| 395 fp=fopen(ptr,p); | |
| 396 if (fp == NULL) | |
| 397 { | |
| 398 SYSerr(SYS_F_FOPEN,get_last_sys_error()); | |
| 399 ERR_add_error_data(5,"fopen('",ptr,"','",p,"')"); | |
| 400 BIOerr(BIO_F_FILE_CTRL,ERR_R_SYS_LIB); | |
| 401 ret=0; | |
| 402 break; | |
| 403 } | |
| 404 b->ptr=fp; | |
| 405 b->init=1; | |
| 406 BIO_clear_flags(b,BIO_FLAGS_UPLINK); /* we did fopen -> we disen
gage UPLINK */ | |
| 407 break; | |
| 408 case BIO_C_GET_FILE_PTR: | |
| 409 /* the ptr parameter is actually a FILE ** in this case. */ | |
| 410 if (ptr != NULL) | |
| 411 { | |
| 412 fpp=(FILE **)ptr; | |
| 413 *fpp=(FILE *)b->ptr; | |
| 414 } | |
| 415 break; | |
| 416 case BIO_CTRL_GET_CLOSE: | |
| 417 ret=(long)b->shutdown; | |
| 418 break; | |
| 419 case BIO_CTRL_SET_CLOSE: | |
| 420 b->shutdown=(int)num; | |
| 421 break; | |
| 422 case BIO_CTRL_FLUSH: | |
| 423 if (b->flags&BIO_FLAGS_UPLINK) | |
| 424 UP_fflush(b->ptr); | |
| 425 else | |
| 426 fflush((FILE *)b->ptr); | |
| 427 break; | |
| 428 case BIO_CTRL_DUP: | |
| 429 ret=1; | |
| 430 break; | |
| 431 | |
| 432 case BIO_CTRL_WPENDING: | |
| 433 case BIO_CTRL_PENDING: | |
| 434 case BIO_CTRL_PUSH: | |
| 435 case BIO_CTRL_POP: | |
| 436 default: | |
| 437 ret=0; | |
| 438 break; | |
| 439 } | |
| 440 return(ret); | |
| 441 } | |
| 442 | |
| 443 static int MS_CALLBACK file_gets(BIO *bp, char *buf, int size) | |
| 444 { | |
| 445 int ret=0; | |
| 446 | |
| 447 buf[0]='\0'; | |
| 448 if (bp->flags&BIO_FLAGS_UPLINK) | |
| 449 { | |
| 450 if (!UP_fgets(buf,size,bp->ptr)) | |
| 451 goto err; | |
| 452 } | |
| 453 else | |
| 454 { | |
| 455 if (!fgets(buf,size,(FILE *)bp->ptr)) | |
| 456 goto err; | |
| 457 } | |
| 458 if (buf[0] != '\0') | |
| 459 ret=strlen(buf); | |
| 460 err: | |
| 461 return(ret); | |
| 462 } | |
| 463 | |
| 464 static int MS_CALLBACK file_puts(BIO *bp, const char *str) | |
| 465 { | |
| 466 int n,ret; | |
| 467 | |
| 468 n=strlen(str); | |
| 469 ret=file_write(bp,str,n); | |
| 470 return(ret); | |
| 471 } | |
| 472 | |
| 473 #endif /* OPENSSL_NO_STDIO */ | |
| 474 | |
| 475 #endif /* HEADER_BSS_FILE_C */ | |
| 476 | |
| 477 | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master