guacamole-spice-protocol/src/protocols/rdp/unicode.c
2016-03-28 20:39:19 -07:00

75 lines
1.9 KiB
C

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#include "config.h"
#include <stdint.h>
#include <guacamole/unicode.h>
void guac_rdp_utf16_to_utf8(const unsigned char* utf16, int length,
char* utf8, int size) {
int i;
const uint16_t* in_codepoint = (const uint16_t*) utf16;
/* For each UTF-16 character */
for (i=0; i<length; i++) {
/* Get next codepoint */
uint16_t codepoint = *(in_codepoint++);
/* Save codepoint as UTF-8 */
int bytes_written = guac_utf8_write(codepoint, utf8, size);
size -= bytes_written;
utf8 += bytes_written;
}
/* Save NULL terminator */
*(utf8++) = 0;
}
void guac_rdp_utf8_to_utf16(const unsigned char* utf8, int length,
char* utf16, int size) {
int i;
uint16_t* out_codepoint = (uint16_t*) utf16;
/* For each UTF-8 character */
for (i=0; i<length; i++) {
/* Get next codepoint */
int codepoint;
utf8 += guac_utf8_read((const char*) utf8, 4, &codepoint);
/* Save codepoint as UTF-16 */
*(out_codepoint++) = codepoint;
/* Stop if buffer full */
size -= 2;
if (size < 2)
break;
}
}