Comments (2)
/**
* characters used for Base64 encoding
*/
static const char *BASE64_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
/**
* encode three bytes using base64 (RFC 3548)
*
* @param triple three bytes that should be encoded
* @param result buffer of four characters where the result is stored
*/
static void _base64_encode_triple(unsigned char triple[3], char result[4])
{
int tripleValue, i;
tripleValue = triple[0];
tripleValue *= 256;
tripleValue += triple[1];
tripleValue *= 256;
tripleValue += triple[2];
for (i = 0; i<4; i++)
{
result[3 - i] = BASE64_CHARS[tripleValue % 64];
tripleValue /= 64;
}
}
/**
* encode an array of bytes using Base64 (RFC 3548)
*
* @param source the source buffer
* @param sourcelen the length of the source buffer
* @param target the target buffer
* @param targetlen the length of the target buffer
* @return 1 on success, 0 otherwise
*/
static int base64_encode(char *target, size_t targetlen, unsigned char *source, size_t sourcelen)
{
/* check if the result will fit in the target buffer */
if ((sourcelen + 2) / 3 * 4 > targetlen - 1)
return 0;
/* encode all full triples */
while (sourcelen >= 3)
{
_base64_encode_triple(source, target);
sourcelen -= 3;
source += 3;
target += 4;
}
/* encode the last one or two characters */
if (sourcelen > 0)
{
unsigned char temp[3];
memset(temp, 0, sizeof(temp));
memcpy(temp, source, sourcelen);
_base64_encode_triple(temp, target);
target[3] = '=';
if (sourcelen == 1)
target[2] = '=';
target += 4;
}
/* terminate the string */
target[0] = 0;
return 1;
}
use this base64_encode. from
https://github.com/payden/libwebsock/blob/master/src/base64.c
from cwebsocket.
Notice the call parameters are different order and return value:
base64_encode(shaHash, 20, responseKey, length);
size_t base64Length = base64len(20);
then it seems to work fine!
from cwebsocket.
Related Issues (19)
- Support for newer browser HOT 14
- Send Large String To The WebSocket Server HOT 1
- Memory Leak
- MemoryLeak: Not all calls to getUptoLinefeed are freeing memory with prepare macro HOT 1
- BUF_LEN is HUGE HOT 1
- frameType set and then overwritten in wsParseHandshake HOT 6
- Modified main.c to handle multiple clients using pthread_create
- Where is SIZE_MAX declared in websocket.c? HOT 2
- lib depends on GPL components HOT 3
- "undefined reference to 'htons'" for arduino HOT 1
- Incorrect handling of long size packet HOT 2
- Firefox Handshake
- base64 encode bug HOT 1
- Project is not compatible with PlatformIo HOT 1
- *buf++ = (((n - 1 - i) >> 31) & '=') | *buf++ = (((n - 1 - i) >> 24) & '=') | aw-base64.h HOT 3
- Memory Leaks? HOT 1
- Improper Handling of Invalid Resource IDs HOT 2
- Multiple Clients HOT 2
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from cwebsocket.