| File: | jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c |
| Warning: | line 199, column 13 Value stored to 'byte3' is never read |
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| 1 | /* |
| 2 | * Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Oracle designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Oracle in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 22 | * or visit www.oracle.com if you need additional information or have any |
| 23 | * questions. |
| 24 | */ |
| 25 | |
| 26 | #include <stdlib.h> |
| 27 | #include <ctype.h> |
| 28 | |
| 29 | #include "jni.h" |
| 30 | |
| 31 | #include "utf_util.h" |
| 32 | |
| 33 | |
| 34 | /* Error and assert macros */ |
| 35 | #define UTF_ERROR(m)utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 35, m) utfError(__FILE__"/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c", __LINE__35, m) |
| 36 | #define UTF_ASSERT(x)( (x)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 36, "ASSERT ERROR " "x") : (void)0 ) ( (x)==0 ? UTF_ERROR("ASSERT ERROR " #x)utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 36, "ASSERT ERROR " #x) : (void)0 ) |
| 37 | |
| 38 | // Platform independed part |
| 39 | |
| 40 | static void utfError(char *file, int line, char *message) { |
| 41 | (void)fprintf(stderr, "UTF ERROR [\"%s\":%d]: %s\n", file, line, message)__fprintf_chk (stderr, 2 - 1, "UTF ERROR [\"%s\":%d]: %s\n", file , line, message); |
| 42 | abort(); |
| 43 | } |
| 44 | |
| 45 | /* Determine length of this Standard UTF-8 in Modified UTF-8. |
| 46 | * Validation is done of the basic UTF encoding rules, returns |
| 47 | * length (no change) when errors are detected in the UTF encoding. |
| 48 | * |
| 49 | * Note: Accepts Modified UTF-8 also, no verification on the |
| 50 | * correctness of Standard UTF-8 is done. e,g, 0xC080 input is ok. |
| 51 | */ |
| 52 | int JNICALL utf8sToUtf8mLength(jbyte *string, int length) { |
| 53 | int newLength; |
| 54 | int i; |
| 55 | |
| 56 | newLength = 0; |
| 57 | for ( i = 0 ; i < length ; i++ ) { |
| 58 | unsigned byte; |
| 59 | |
| 60 | byte = (unsigned char)string[i]; |
| 61 | if ( (byte & 0x80) == 0 ) { /* 1byte encoding */ |
| 62 | newLength++; |
| 63 | if ( byte == 0 ) { |
| 64 | newLength++; /* We gain one byte in length on NULL bytes */ |
| 65 | } |
| 66 | } else if ( (byte & 0xE0) == 0xC0 ) { /* 2byte encoding */ |
| 67 | /* Check encoding of following bytes */ |
| 68 | if ( (i+1) >= length || (string[i+1] & 0xC0) != 0x80 ) { |
| 69 | break; /* Error condition */ |
| 70 | } |
| 71 | i++; /* Skip next byte */ |
| 72 | newLength += 2; |
| 73 | } else if ( (byte & 0xF0) == 0xE0 ) { /* 3byte encoding */ |
| 74 | /* Check encoding of following bytes */ |
| 75 | if ( (i+2) >= length || (string[i+1] & 0xC0) != 0x80 |
| 76 | || (string[i+2] & 0xC0) != 0x80 ) { |
| 77 | break; /* Error condition */ |
| 78 | } |
| 79 | i += 2; /* Skip next two bytes */ |
| 80 | newLength += 3; |
| 81 | } else if ( (byte & 0xF8) == 0xF0 ) { /* 4byte encoding */ |
| 82 | /* Check encoding of following bytes */ |
| 83 | if ( (i+3) >= length || (string[i+1] & 0xC0) != 0x80 |
| 84 | || (string[i+2] & 0xC0) != 0x80 |
| 85 | || (string[i+3] & 0xC0) != 0x80 ) { |
| 86 | break; /* Error condition */ |
| 87 | } |
| 88 | i += 3; /* Skip next 3 bytes */ |
| 89 | newLength += 6; /* 4byte encoding turns into 2 3byte ones */ |
| 90 | } else { |
| 91 | break; /* Error condition */ |
| 92 | } |
| 93 | } |
| 94 | if ( i != length ) { |
| 95 | /* Error in finding new length, return old length so no conversion */ |
| 96 | /* FIXUP: ERROR_MESSAGE? */ |
| 97 | return length; |
| 98 | } |
| 99 | return newLength; |
| 100 | } |
| 101 | |
| 102 | /* Convert Standard UTF-8 to Modified UTF-8. |
| 103 | * Assumes the UTF-8 encoding was validated by utf8mLength() above. |
| 104 | * |
| 105 | * Note: Accepts Modified UTF-8 also, no verification on the |
| 106 | * correctness of Standard UTF-8 is done. e,g, 0xC080 input is ok. |
| 107 | */ |
| 108 | void JNICALL utf8sToUtf8m(jbyte *string, int length, jbyte *newString, int newLength) { |
| 109 | int i; |
| 110 | int j; |
| 111 | |
| 112 | j = 0; |
| 113 | for ( i = 0 ; i < length ; i++ ) { |
| 114 | unsigned byte1; |
| 115 | |
| 116 | byte1 = (unsigned char)string[i]; |
| 117 | |
| 118 | /* NULL bytes and bytes starting with 11110xxx are special */ |
| 119 | if ( (byte1 & 0x80) == 0 ) { /* 1byte encoding */ |
| 120 | if ( byte1 == 0 ) { |
| 121 | /* Bits out: 11000000 10000000 */ |
| 122 | newString[j++] = (jbyte)0xC0; |
| 123 | newString[j++] = (jbyte)0x80; |
| 124 | } else { |
| 125 | /* Single byte */ |
| 126 | newString[j++] = byte1; |
| 127 | } |
| 128 | } else if ( (byte1 & 0xE0) == 0xC0 ) { /* 2byte encoding */ |
| 129 | newString[j++] = byte1; |
| 130 | newString[j++] = string[++i]; |
| 131 | } else if ( (byte1 & 0xF0) == 0xE0 ) { /* 3byte encoding */ |
| 132 | newString[j++] = byte1; |
| 133 | newString[j++] = string[++i]; |
| 134 | newString[j++] = string[++i]; |
| 135 | } else if ( (byte1 & 0xF8) == 0xF0 ) { /* 4byte encoding */ |
| 136 | /* Beginning of 4byte encoding, turn into 2 3byte encodings */ |
| 137 | unsigned byte2, byte3, byte4, u21; |
| 138 | |
| 139 | /* Bits in: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */ |
| 140 | byte2 = (unsigned char)string[++i]; |
| 141 | byte3 = (unsigned char)string[++i]; |
| 142 | byte4 = (unsigned char)string[++i]; |
| 143 | /* Reconstruct full 21bit value */ |
| 144 | u21 = (byte1 & 0x07) << 18; |
| 145 | u21 += (byte2 & 0x3F) << 12; |
| 146 | u21 += (byte3 & 0x3F) << 6; |
| 147 | u21 += (byte4 & 0x3F); |
| 148 | /* Bits out: 11101101 1010xxxx 10xxxxxx */ |
| 149 | newString[j++] = (jbyte)0xED; |
| 150 | newString[j++] = (jbyte)(0xA0 + (((u21 >> 16) - 1) & 0x0F)); |
| 151 | newString[j++] = (jbyte)(0x80 + ((u21 >> 10) & 0x3F)); |
| 152 | /* Bits out: 11101101 1011xxxx 10xxxxxx */ |
| 153 | newString[j++] = (jbyte)0xED; |
| 154 | newString[j++] = (jbyte)(0xB0 + ((u21 >> 6) & 0x0F)); |
| 155 | newString[j++] = byte4; |
| 156 | } |
| 157 | } |
| 158 | UTF_ASSERT(i==length)( (i==length)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 158, "ASSERT ERROR " "i==length") : (void)0 ); |
| 159 | UTF_ASSERT(j==newLength)( (j==newLength)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 159, "ASSERT ERROR " "j==newLength") : (void)0 ); |
| 160 | newString[j] = (jbyte)0; |
| 161 | } |
| 162 | |
| 163 | /* Given a Modified UTF-8 string, calculate the Standard UTF-8 length. |
| 164 | * Basic validation of the UTF encoding rules is done, and length is |
| 165 | * returned (no change) when errors are detected. |
| 166 | * |
| 167 | * Note: No validation is made that this is indeed Modified UTF-8 coming in. |
| 168 | * |
| 169 | */ |
| 170 | int JNICALL utf8mToUtf8sLength(jbyte *string, int length) { |
| 171 | int newLength; |
| 172 | int i; |
| 173 | |
| 174 | newLength = 0; |
| 175 | for ( i = 0 ; i < length ; i++ ) { |
| 176 | unsigned byte1, byte2, byte3, byte4, byte5, byte6; |
| 177 | |
| 178 | byte1 = (unsigned char)string[i]; |
| 179 | if ( (byte1 & 0x80) == 0 ) { /* 1byte encoding */ |
| 180 | newLength++; |
| 181 | } else if ( (byte1 & 0xE0) == 0xC0 ) { /* 2byte encoding */ |
| 182 | /* Check encoding of following bytes */ |
| 183 | if ( (i+1) >= length || (string[i+1] & 0xC0) != 0x80 ) { |
| 184 | break; /* Error condition */ |
| 185 | } |
| 186 | byte2 = (unsigned char)string[++i]; |
| 187 | if ( byte1 != 0xC0 || byte2 != 0x80 ) { |
| 188 | newLength += 2; /* Normal 2byte encoding, not 0xC080 */ |
| 189 | } else { |
| 190 | newLength++; /* We will turn 0xC080 into 0 */ |
| 191 | } |
| 192 | } else if ( (byte1 & 0xF0) == 0xE0 ) { /* 3byte encoding */ |
| 193 | /* Check encoding of following bytes */ |
| 194 | if ( (i+2) >= length || (string[i+1] & 0xC0) != 0x80 |
| 195 | || (string[i+2] & 0xC0) != 0x80 ) { |
| 196 | break; /* Error condition */ |
| 197 | } |
| 198 | byte2 = (unsigned char)string[++i]; |
| 199 | byte3 = (unsigned char)string[++i]; |
Value stored to 'byte3' is never read | |
| 200 | newLength += 3; |
| 201 | /* Possible process a second 3byte encoding */ |
| 202 | if ( (i+3) < length && byte1 == 0xED && (byte2 & 0xF0) == 0xA0 ) { |
| 203 | /* See if this is a pair of 3byte encodings */ |
| 204 | byte4 = (unsigned char)string[i+1]; |
| 205 | byte5 = (unsigned char)string[i+2]; |
| 206 | byte6 = (unsigned char)string[i+3]; |
| 207 | if ( byte4 == 0xED && (byte5 & 0xF0) == 0xB0 ) { |
| 208 | /* Check encoding of 3rd byte */ |
| 209 | if ( (byte6 & 0xC0) != 0x80 ) { |
| 210 | break; /* Error condition */ |
| 211 | } |
| 212 | newLength++; /* New string will have 4byte encoding */ |
| 213 | i += 3; /* Skip next 3 bytes */ |
| 214 | } |
| 215 | } |
| 216 | } else { |
| 217 | break; /* Error condition */ |
| 218 | } |
| 219 | } |
| 220 | if ( i != length ) { |
| 221 | /* Error in UTF encoding */ |
| 222 | /* FIXUP: ERROR_MESSAGE()? */ |
| 223 | return length; |
| 224 | } |
| 225 | return newLength; |
| 226 | } |
| 227 | |
| 228 | /* Convert a Modified UTF-8 string into a Standard UTF-8 string |
| 229 | * It is assumed that this string has been validated in terms of the |
| 230 | * basic UTF encoding rules by utf8Length() above. |
| 231 | * |
| 232 | * Note: No validation is made that this is indeed Modified UTF-8 coming in. |
| 233 | * |
| 234 | */ |
| 235 | void JNICALL utf8mToUtf8s(jbyte *string, int length, jbyte *newString, int newLength) { |
| 236 | int i; |
| 237 | int j; |
| 238 | |
| 239 | j = 0; |
| 240 | for ( i = 0 ; i < length ; i++ ) { |
| 241 | unsigned byte1, byte2, byte3, byte4, byte5, byte6; |
| 242 | |
| 243 | byte1 = (unsigned char)string[i]; |
| 244 | if ( (byte1 & 0x80) == 0 ) { /* 1byte encoding */ |
| 245 | /* Single byte */ |
| 246 | newString[j++] = byte1; |
| 247 | } else if ( (byte1 & 0xE0) == 0xC0 ) { /* 2byte encoding */ |
| 248 | byte2 = (unsigned char)string[++i]; |
| 249 | if ( byte1 != 0xC0 || byte2 != 0x80 ) { |
| 250 | newString[j++] = byte1; |
| 251 | newString[j++] = byte2; |
| 252 | } else { |
| 253 | newString[j++] = 0; |
| 254 | } |
| 255 | } else if ( (byte1 & 0xF0) == 0xE0 ) { /* 3byte encoding */ |
| 256 | byte2 = (unsigned char)string[++i]; |
| 257 | byte3 = (unsigned char)string[++i]; |
| 258 | if ( i+3 < length && byte1 == 0xED && (byte2 & 0xF0) == 0xA0 ) { |
| 259 | /* See if this is a pair of 3byte encodings */ |
| 260 | byte4 = (unsigned char)string[i+1]; |
| 261 | byte5 = (unsigned char)string[i+2]; |
| 262 | byte6 = (unsigned char)string[i+3]; |
| 263 | if ( byte4 == 0xED && (byte5 & 0xF0) == 0xB0 ) { |
| 264 | unsigned u21; |
| 265 | |
| 266 | /* Bits in: 11101101 1010xxxx 10xxxxxx */ |
| 267 | /* Bits in: 11101101 1011xxxx 10xxxxxx */ |
| 268 | i += 3; |
| 269 | |
| 270 | /* Reconstruct 21 bit code */ |
| 271 | u21 = ((byte2 & 0x0F) + 1) << 16; |
| 272 | u21 += (byte3 & 0x3F) << 10; |
| 273 | u21 += (byte5 & 0x0F) << 6; |
| 274 | u21 += (byte6 & 0x3F); |
| 275 | |
| 276 | /* Bits out: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */ |
| 277 | |
| 278 | /* Convert to 4byte encoding */ |
| 279 | newString[j++] = 0xF0 + ((u21 >> 18) & 0x07); |
| 280 | newString[j++] = 0x80 + ((u21 >> 12) & 0x3F); |
| 281 | newString[j++] = 0x80 + ((u21 >> 6) & 0x3F); |
| 282 | newString[j++] = 0x80 + (u21 & 0x3F); |
| 283 | continue; |
| 284 | } |
| 285 | } |
| 286 | /* Normal 3byte encoding */ |
| 287 | newString[j++] = byte1; |
| 288 | newString[j++] = byte2; |
| 289 | newString[j++] = byte3; |
| 290 | } |
| 291 | } |
| 292 | UTF_ASSERT(i==length)( (i==length)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 292, "ASSERT ERROR " "i==length") : (void)0 ); |
| 293 | UTF_ASSERT(j==newLength)( (j==newLength)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 293, "ASSERT ERROR " "j==newLength") : (void)0 ); |
| 294 | newString[j] = 0; |
| 295 | } |
| 296 | |
| 297 | #ifdef _WIN32 |
| 298 | // Microsoft Windows specific part |
| 299 | |
| 300 | #include <windows.h> |
| 301 | |
| 302 | static UINT getCodepage() { |
| 303 | LANGID langID; |
| 304 | LCID localeID; |
| 305 | TCHAR strCodePage[7]; // ANSI code page id |
| 306 | |
| 307 | static UINT intCodePage = -1; |
| 308 | |
| 309 | if (intCodePage == -1) { |
| 310 | // Firts call, get codepage from the os |
| 311 | langID = LANGIDFROMLCID(GetUserDefaultLCID()); |
| 312 | localeID = MAKELCID(langID, SORT_DEFAULT); |
| 313 | if (GetLocaleInfo(localeID, LOCALE_IDEFAULTANSICODEPAGE, |
| 314 | strCodePage, sizeof(strCodePage)/sizeof(TCHAR)) > 0 ) { |
| 315 | intCodePage = atoi(strCodePage); |
| 316 | } |
| 317 | else { |
| 318 | intCodePage = GetACP(); |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | return intCodePage; |
| 323 | } |
| 324 | |
| 325 | /* |
| 326 | * Get wide string (assumes len>0) |
| 327 | */ |
| 328 | static WCHAR* getWideString(UINT codePage, char* str, int len, int *pwlen) { |
| 329 | int wlen; |
| 330 | WCHAR* wstr; |
| 331 | |
| 332 | /* Convert the string to WIDE string */ |
| 333 | wlen = MultiByteToWideChar(codePage, 0, str, len, NULL((void*)0), 0); |
| 334 | *pwlen = wlen; |
| 335 | if (wlen <= 0) { |
| 336 | UTF_ERROR(("Can't get WIDE string length"))utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 336, ("Can't get WIDE string length")); |
| 337 | return NULL((void*)0); |
| 338 | } |
| 339 | wstr = (WCHAR*)malloc(wlen * sizeof(WCHAR)); |
| 340 | if (wstr == NULL((void*)0)) { |
| 341 | UTF_ERROR(("Can't malloc() any space"))utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 341, ("Can't malloc() any space")); |
| 342 | return NULL((void*)0); |
| 343 | } |
| 344 | if (MultiByteToWideChar(codePage, 0, str, len, wstr, wlen) == 0) { |
| 345 | UTF_ERROR(("Can't get WIDE string"))utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 345, ("Can't get WIDE string")); |
| 346 | return NULL((void*)0); |
| 347 | } |
| 348 | return wstr; |
| 349 | } |
| 350 | |
| 351 | /* |
| 352 | * Convert UTF-8 to a platform string |
| 353 | * NOTE: outputBufSize includes the space for the trailing 0. |
| 354 | */ |
| 355 | int JNICALL utf8ToPlatform(jbyte *utf8, int len, char* output, int outputBufSize) { |
| 356 | int wlen; |
| 357 | int plen; |
| 358 | WCHAR* wstr; |
| 359 | UINT codepage; |
| 360 | int outputMaxLen; |
| 361 | |
| 362 | UTF_ASSERT(utf8)( (utf8)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 362, "ASSERT ERROR " "utf8") : (void)0 ); |
| 363 | UTF_ASSERT(output)( (output)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 363, "ASSERT ERROR " "output") : (void)0 ); |
| 364 | UTF_ASSERT(len >= 0)( (len >= 0)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 364, "ASSERT ERROR " "len >= 0") : (void)0 ); |
| 365 | UTF_ASSERT(outputBufSize > len)( (outputBufSize > len)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 365, "ASSERT ERROR " "outputBufSize > len") : (void)0 ); |
| 366 | outputMaxLen = outputBufSize - 1; // leave space for trailing 0 |
| 367 | |
| 368 | /* Zero length is ok, but we don't need to do much */ |
| 369 | if ( len == 0 ) { |
| 370 | output[0] = 0; |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | /* Get WIDE string version (assumes len>0) */ |
| 375 | wstr = getWideString(CP_UTF8, (char*)utf8, len, &wlen); |
| 376 | if ( wstr == NULL((void*)0) ) { |
| 377 | // Can't allocate WIDE string |
| 378 | goto just_copy_bytes; |
| 379 | } |
| 380 | |
| 381 | /* Convert WIDE string to MultiByte string */ |
| 382 | codepage = getCodepage(); |
| 383 | plen = WideCharToMultiByte(codepage, 0, wstr, wlen, |
| 384 | output, outputMaxLen, NULL((void*)0), NULL((void*)0)); |
| 385 | free(wstr); |
| 386 | if (plen <= 0) { |
| 387 | // Can't convert WIDE string to multi-byte |
| 388 | goto just_copy_bytes; |
| 389 | } |
| 390 | output[plen] = '\0'; |
| 391 | return plen; |
| 392 | |
| 393 | just_copy_bytes: |
| 394 | (void)memcpy(output, utf8, len); |
| 395 | output[len] = 0; |
| 396 | return len; |
| 397 | } |
| 398 | |
| 399 | /* |
| 400 | * Convert Platform Encoding to UTF-8. |
| 401 | * NOTE: outputBufSize includes the space for the trailing 0. |
| 402 | */ |
| 403 | int JNICALL utf8FromPlatform(char *str, int len, jbyte *output, int outputBufSize) { |
| 404 | int wlen; |
| 405 | int plen; |
| 406 | WCHAR* wstr; |
| 407 | UINT codepage; |
| 408 | int outputMaxLen; |
| 409 | |
| 410 | UTF_ASSERT(str)( (str)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 410, "ASSERT ERROR " "str") : (void)0 ); |
| 411 | UTF_ASSERT(output)( (output)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 411, "ASSERT ERROR " "output") : (void)0 ); |
| 412 | UTF_ASSERT(len >= 0)( (len >= 0)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 412, "ASSERT ERROR " "len >= 0") : (void)0 ); |
| 413 | UTF_ASSERT(outputBufSize > len)( (outputBufSize > len)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 413, "ASSERT ERROR " "outputBufSize > len") : (void)0 ); |
| 414 | outputMaxLen = outputBufSize - 1; // leave space for trailing 0 |
| 415 | |
| 416 | /* Zero length is ok, but we don't need to do much */ |
| 417 | if ( len == 0 ) { |
| 418 | output[0] = 0; |
| 419 | return 0; |
| 420 | } |
| 421 | |
| 422 | /* Get WIDE string version (assumes len>0) */ |
| 423 | codepage = getCodepage(); |
| 424 | wstr = getWideString(codepage, str, len, &wlen); |
| 425 | if ( wstr == NULL((void*)0) ) { |
| 426 | goto just_copy_bytes; |
| 427 | } |
| 428 | |
| 429 | /* Convert WIDE string to UTF-8 string */ |
| 430 | plen = WideCharToMultiByte(CP_UTF8, 0, wstr, wlen, |
| 431 | (char*)output, outputMaxLen, NULL((void*)0), NULL((void*)0)); |
| 432 | free(wstr); |
| 433 | if (plen <= 0) { |
| 434 | UTF_ERROR(("Can't convert WIDE string to multi-byte"))utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 434, ("Can't convert WIDE string to multi-byte")); |
| 435 | goto just_copy_bytes; |
| 436 | } |
| 437 | output[plen] = '\0'; |
| 438 | return plen; |
| 439 | |
| 440 | just_copy_bytes: |
| 441 | (void)memcpy(output, str, len); |
| 442 | output[len] = 0; |
| 443 | return len; |
| 444 | } |
| 445 | |
| 446 | |
| 447 | #else |
| 448 | // *NIX specific part |
| 449 | |
| 450 | #include <iconv.h> |
| 451 | #include <locale.h> |
| 452 | #include <langinfo.h> |
| 453 | #include <string.h> |
| 454 | |
| 455 | typedef enum {TO_UTF8, FROM_UTF8} conv_direction; |
| 456 | |
| 457 | /* |
| 458 | * Do iconv() conversion. |
| 459 | * Returns length or -1 if output overflows. |
| 460 | * NOTE: outputBufSize includes the space for the trailing 0. |
| 461 | */ |
| 462 | static int iconvConvert(conv_direction drn, char *bytes, size_t len, char *output, size_t outputBufSize) { |
| 463 | |
| 464 | static char *codeset = 0; |
| 465 | iconv_t func; |
| 466 | size_t bytes_converted; |
| 467 | size_t inLeft, outLeft; |
| 468 | char *inbuf, *outbuf; |
| 469 | int outputMaxLen; |
| 470 | |
| 471 | UTF_ASSERT(bytes)( (bytes)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 471, "ASSERT ERROR " "bytes") : (void)0 ); |
| 472 | UTF_ASSERT(output)( (output)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 472, "ASSERT ERROR " "output") : (void)0 ); |
| 473 | UTF_ASSERT(outputBufSize > len)( (outputBufSize > len)==0 ? utfError("/home/daniel/Projects/java/jdk/src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c" , 473, "ASSERT ERROR " "outputBufSize > len") : (void)0 ); |
| 474 | outputMaxLen = outputBufSize - 1; // leave space for trailing 0 |
| 475 | |
| 476 | /* Zero length is ok, but we don't need to do much */ |
| 477 | if ( len == 0 ) { |
| 478 | output[0] = 0; |
| 479 | return 0; |
| 480 | } |
| 481 | |
| 482 | if (codeset == NULL((void*)0) && codeset != (char *) -1) { |
| 483 | // locale is not initialized, do it now |
| 484 | if (setlocale(LC_ALL6, "") != NULL((void*)0)) { |
| 485 | // nl_langinfo returns ANSI_X3.4-1968 by default |
| 486 | codeset = (char*)nl_langinfo(CODESETCODESET); |
| 487 | } |
| 488 | |
| 489 | if (codeset == NULL((void*)0)) { |
| 490 | // Not able to intialize process locale from platform one. |
| 491 | codeset = (char *) -1; |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | if (codeset == (char *) -1) { |
| 496 | // There was an error during initialization, so just bail out |
| 497 | goto just_copy_bytes; |
| 498 | } |
| 499 | |
| 500 | func = (drn == TO_UTF8) ? iconv_open(codeset, "UTF-8") : iconv_open("UTF-8", codeset); |
| 501 | if (func == (iconv_t) -1) { |
| 502 | // Requested charset combination is not supported, conversion couldn't be done. |
| 503 | // make sure we will not try it again |
| 504 | codeset = (char *) -1; |
| 505 | goto just_copy_bytes; |
| 506 | } |
| 507 | |
| 508 | // perform conversion |
| 509 | inbuf = bytes; |
| 510 | outbuf = output; |
| 511 | inLeft = len; |
| 512 | outLeft = outputMaxLen; |
| 513 | |
| 514 | bytes_converted = iconv(func, (void*)&inbuf, &inLeft, &outbuf, &outLeft); |
| 515 | if (bytes_converted == (size_t) -1 || bytes_converted == 0 || inLeft != 0) { |
| 516 | // Input string is invalid, not able to convert entire string |
| 517 | // or some other iconv error happens. |
| 518 | iconv_close(func); |
| 519 | goto just_copy_bytes; |
| 520 | } |
| 521 | |
| 522 | iconv_close(func); |
| 523 | // Overwrite bytes_converted with value of actually stored bytes |
| 524 | bytes_converted = outputMaxLen-outLeft; |
| 525 | output[bytes_converted] = 0; |
| 526 | return bytes_converted; |
| 527 | |
| 528 | |
| 529 | just_copy_bytes: |
| 530 | (void)memcpy(output, bytes, len); |
| 531 | output[len] = 0; |
| 532 | return len; |
| 533 | } |
| 534 | |
| 535 | /* |
| 536 | * Convert UTF-8 to Platform Encoding. |
| 537 | * Returns length or -1 if output overflows. |
| 538 | * NOTE: outputBufSize includes the space for the trailing 0. |
| 539 | */ |
| 540 | int JNICALL utf8ToPlatform(jbyte *utf8, int len, char *output, int outputBufSize) { |
| 541 | return iconvConvert(FROM_UTF8, (char*)utf8, len, output, outputBufSize); |
| 542 | } |
| 543 | |
| 544 | /* |
| 545 | * Convert Platform Encoding to UTF-8. |
| 546 | * Returns length or -1 if output overflows. |
| 547 | * NOTE: outputBufSize includes the space for the trailing 0. |
| 548 | */ |
| 549 | int JNICALL utf8FromPlatform(char *str, int len, jbyte *output, int outputBufSize) { |
| 550 | return iconvConvert(TO_UTF8, str, len, (char*) output, outputBufSize); |
| 551 | } |
| 552 | |
| 553 | #endif |