77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
![]() |
/*
|
||
|
*
|
||
|
* Wireless daemon for Linux
|
||
|
*
|
||
|
* Copyright (C) 2014 Intel Corporation. All rights reserved.
|
||
|
*
|
||
|
* This library is free software; you can redistribute it and/or
|
||
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
* License as published by the Free Software Foundation; either
|
||
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
*
|
||
|
* This library is distributed in the hope that it will be useful,
|
||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
* Lesser General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
* License along with this library; if not, write to the Free Software
|
||
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
#ifdef HAVE_CONFIG_H
|
||
|
#include <config.h>
|
||
|
#endif
|
||
|
|
||
|
#include <string.h>
|
||
|
|
||
|
#include <ell/string.h>
|
||
|
|
||
|
#include "util.h"
|
||
|
|
||
|
const char *util_ssid_to_utf8(size_t len, const uint8_t *ssid)
|
||
|
{
|
||
|
static char buf[3* 32 + 1];
|
||
|
size_t i = 0, pos = 0;
|
||
|
const uint8_t *start = ssid, *end;
|
||
|
|
||
|
memset(buf, 0, sizeof(buf));
|
||
|
|
||
|
if (len > 32)
|
||
|
goto no_ssid;
|
||
|
|
||
|
while (i < len && !ssid[i])
|
||
|
i++;
|
||
|
|
||
|
if (i == len)
|
||
|
goto no_ssid;
|
||
|
|
||
|
i = len;
|
||
|
|
||
|
while (i && (!l_utf8_validate((const char *)start, i,
|
||
|
(const char **)&end))) {
|
||
|
const char replacement[] = { 0xEF, 0xBF, 0xBD };
|
||
|
int bytes = end - start;
|
||
|
|
||
|
memcpy(&buf[pos], start, bytes);
|
||
|
pos += bytes;
|
||
|
|
||
|
memcpy(&buf[pos], replacement, sizeof(replacement));
|
||
|
pos += sizeof(replacement);
|
||
|
|
||
|
start = end + 1;
|
||
|
i -= (bytes + 1);
|
||
|
}
|
||
|
|
||
|
if (i) {
|
||
|
memcpy(&buf[pos], start, i);
|
||
|
pos += i;
|
||
|
}
|
||
|
|
||
|
no_ssid:
|
||
|
buf[pos] = '\0';
|
||
|
|
||
|
return buf;
|
||
|
}
|