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src/java.instrument/unix/native/libinstrument/EncodingSupport_md.c

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   1 /*
   2  * Copyright (c) 2004, 2012, 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


  46 /* Global variables */
  47 static iconv_t iconvToPlatform          = (iconv_t)-1;
  48 static iconv_t iconvFromPlatform        = (iconv_t)-1;
  49 
  50 /*
  51  * Error handler
  52  */
  53 static void
  54 utfError(char *file, int line, char *message)
  55 {
  56     (void)fprintf(stderr, "UTF ERROR [\"%s\":%d]: %s\n", file, line, message);
  57     abort();
  58 }
  59 
  60 /*
  61  * Initialize all utf processing.
  62  */
  63 static void
  64 utfInitialize(void)
  65 {
  66     char *codeset;
  67 
  68     /* Set the locale from the environment */
  69     (void)setlocale(LC_ALL, "");
  70 
  71     /* Get the codeset name */
  72     codeset = (char*)nl_langinfo(CODESET);
  73     if ( codeset == NULL || codeset[0] == 0 ) {
  74         UTF_DEBUG(("NO codeset returned by nl_langinfo(CODESET)\n"));
  75         return;
  76     }
  77 
  78     UTF_DEBUG(("Codeset = %s\n", codeset));
  79 














  80     /* If we don't need this, skip it */
  81     if (strcmp(codeset, "UTF-8") == 0 || strcmp(codeset, "utf8") == 0 ) {
  82         UTF_DEBUG(("NO iconv() being used because it is not needed\n"));
  83         return;
  84     }
  85 
  86     /* Open conversion descriptors */
  87     iconvToPlatform   = iconv_open(codeset, "UTF-8");
  88     if ( iconvToPlatform == (iconv_t)-1 ) {
  89         UTF_ERROR("Failed to complete iconv_open() setup");
  90     }
  91     iconvFromPlatform = iconv_open("UTF-8", codeset);
  92     if ( iconvFromPlatform == (iconv_t)-1 ) {
  93         UTF_ERROR("Failed to complete iconv_open() setup");
  94     }
  95 }
  96 
  97 /*
  98  * Terminate all utf processing
  99  */


 129 
 130     if ( ic != (iconv_t)-1 ) {
 131         int          returnValue;
 132         size_t       inLeft;
 133         size_t       outLeft;
 134         char        *inbuf;
 135         char        *outbuf;
 136 
 137         inbuf        = bytes;
 138         outbuf       = output;
 139         inLeft       = len;
 140         outLeft      = outputMaxLen;
 141         returnValue  = iconv(ic, (void*)&inbuf, &inLeft, &outbuf, &outLeft);
 142         if ( returnValue >= 0 && inLeft==0 ) {
 143             outputLen = outputMaxLen-outLeft;
 144             output[outputLen] = 0;
 145             return outputLen;
 146         }
 147 
 148         /* Failed to do the conversion */

 149         return -1;
 150     }
 151 
 152     /* Just copy bytes */
 153     outputLen = len;
 154     (void)memcpy(output, bytes, len);
 155     output[len] = 0;
 156     return outputLen;
 157 }
 158 
 159 /*
 160  * Convert UTF-8 to Platform Encoding.
 161  *    Returns length or -1 if output overflows.
 162  */
 163 static int
 164 utf8ToPlatform(char *utf8, int len, char *output, int outputMaxLen)
 165 {
 166     return iconvConvert(iconvToPlatform, utf8, len, output, outputMaxLen);
 167 }
 168 
   1 /*
   2  * Copyright (c) 2004, 2018, 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


  46 /* Global variables */
  47 static iconv_t iconvToPlatform          = (iconv_t)-1;
  48 static iconv_t iconvFromPlatform        = (iconv_t)-1;
  49 
  50 /*
  51  * Error handler
  52  */
  53 static void
  54 utfError(char *file, int line, char *message)
  55 {
  56     (void)fprintf(stderr, "UTF ERROR [\"%s\":%d]: %s\n", file, line, message);
  57     abort();
  58 }
  59 
  60 /*
  61  * Initialize all utf processing.
  62  */
  63 static void
  64 utfInitialize(void)
  65 {
  66     const char* codeset;
  67 
  68     /* Set the locale from the environment */
  69     (void)setlocale(LC_ALL, "");
  70 
  71     /* Get the codeset name */
  72     codeset = (char*)nl_langinfo(CODESET);
  73     if ( codeset == NULL || codeset[0] == 0 ) {
  74         UTF_DEBUG(("NO codeset returned by nl_langinfo(CODESET)\n"));
  75         return;
  76     }
  77 
  78     UTF_DEBUG(("Codeset = %s\n", codeset));
  79 
  80 #ifdef MACOSX
  81     /* On Mac, if US-ASCII, but with no env hints, use UTF-8 */
  82     const char* env_lang = getenv("LANG");
  83     const char* env_lc_all = getenv("LC_ALL");
  84     const char* env_lc_ctype = getenv("LC_CTYPE");
  85 
  86     if (strcmp(codeset,"US-ASCII") == 0 &&
  87         (env_lang == NULL || strlen(env_lang) == 0) &&
  88         (env_lc_all == NULL || strlen(env_lc_all) == 0) &&
  89         (env_lc_ctype == NULL || strlen(env_lc_ctype) == 0)) {    
  90         codeset = "UTF-8";
  91     }
  92 #endif
  93     
  94     /* If we don't need this, skip it */
  95     if (strcmp(codeset, "UTF-8") == 0 || strcmp(codeset, "utf8") == 0 ) {
  96         UTF_DEBUG(("NO iconv() being used because it is not needed\n"));
  97         return;
  98     }
  99 
 100     /* Open conversion descriptors */
 101     iconvToPlatform   = iconv_open(codeset, "UTF-8");
 102     if ( iconvToPlatform == (iconv_t)-1 ) {
 103         UTF_ERROR("Failed to complete iconv_open() setup");
 104     }
 105     iconvFromPlatform = iconv_open("UTF-8", codeset);
 106     if ( iconvFromPlatform == (iconv_t)-1 ) {
 107         UTF_ERROR("Failed to complete iconv_open() setup");
 108     }
 109 }
 110 
 111 /*
 112  * Terminate all utf processing
 113  */


 143 
 144     if ( ic != (iconv_t)-1 ) {
 145         int          returnValue;
 146         size_t       inLeft;
 147         size_t       outLeft;
 148         char        *inbuf;
 149         char        *outbuf;
 150 
 151         inbuf        = bytes;
 152         outbuf       = output;
 153         inLeft       = len;
 154         outLeft      = outputMaxLen;
 155         returnValue  = iconv(ic, (void*)&inbuf, &inLeft, &outbuf, &outLeft);
 156         if ( returnValue >= 0 && inLeft==0 ) {
 157             outputLen = outputMaxLen-outLeft;
 158             output[outputLen] = 0;
 159             return outputLen;
 160         }
 161 
 162         /* Failed to do the conversion */
 163         UTF_DEBUG(("iconv() failed to do the conversion\n"));
 164         return -1;
 165     }
 166 
 167     /* Just copy bytes */
 168     outputLen = len;
 169     (void)memcpy(output, bytes, len);
 170     output[len] = 0;
 171     return outputLen;
 172 }
 173 
 174 /*
 175  * Convert UTF-8 to Platform Encoding.
 176  *    Returns length or -1 if output overflows.
 177  */
 178 static int
 179 utf8ToPlatform(char *utf8, int len, char *output, int outputMaxLen)
 180 {
 181     return iconvConvert(iconvToPlatform, utf8, len, output, outputMaxLen);
 182 }
 183 
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