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lib/uuid: Make bt_uuid_to_string always use the same format

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The convention has been to use 128 Bits UUID strings so other types must
be converted first.
This commit is contained in:
Luiz Augusto von Dentz 2015-12-02 10:49:12 +02:00
parent 4064a3e98d
commit 0a4ac85042
1 changed files with 20 additions and 31 deletions
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51
lib/uuid.c
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@ -138,46 +138,35 @@ int bt_uuid_cmp(const bt_uuid_t *uuid1, const bt_uuid_t *uuid2)
*/
int bt_uuid_to_string(const bt_uuid_t *uuid, char *str, size_t n)
{
if (!uuid) {
bt_uuid_t tmp;
unsigned int data0;
unsigned short data1;
unsigned short data2;
unsigned short data3;
unsigned int data4;
unsigned short data5;
const uint8_t *data;
if (!uuid || uuid->type == BT_UUID_UNSPEC) {
snprintf(str, n, "NULL");
return -EINVAL;
}
switch (uuid->type) {
case BT_UUID16:
snprintf(str, n, "%.4x", uuid->value.u16);
break;
case BT_UUID32:
snprintf(str, n, "%.8x", uuid->value.u32);
break;
case BT_UUID128: {
unsigned int data0;
unsigned short data1;
unsigned short data2;
unsigned short data3;
unsigned int data4;
unsigned short data5;
/* Convert to 128 Bit format */
bt_uuid_to_uuid128(uuid, &tmp);
data = (uint8_t *) &tmp.value.u128;
const uint8_t *data = (uint8_t *) &uuid->value.u128;
memcpy(&data0, &data[0], 4);
memcpy(&data1, &data[4], 2);
memcpy(&data2, &data[6], 2);
memcpy(&data3, &data[8], 2);
memcpy(&data4, &data[10], 4);
memcpy(&data5, &data[14], 2);
memcpy(&data0, &data[0], 4);
memcpy(&data1, &data[4], 2);
memcpy(&data2, &data[6], 2);
memcpy(&data3, &data[8], 2);
memcpy(&data4, &data[10], 4);
memcpy(&data5, &data[14], 2);
snprintf(str, n, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x",
snprintf(str, n, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x",
ntohl(data0), ntohs(data1),
ntohs(data2), ntohs(data3),
ntohl(data4), ntohs(data5));
}
break;
case BT_UUID_UNSPEC:
default:
snprintf(str, n, "Type of UUID (%x) unknown.", uuid->type);
return -EINVAL; /* Enum type of UUID not set */
}
return 0;
}