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Diffstat (limited to 'drive-sdk/deps/bzle/src/uuid.c')
-rw-r--r--drive-sdk/deps/bzle/src/uuid.c278
1 files changed, 278 insertions, 0 deletions
diff --git a/drive-sdk/deps/bzle/src/uuid.c b/drive-sdk/deps/bzle/src/uuid.c
new file mode 100644
index 0000000..08278be
--- /dev/null
+++ b/drive-sdk/deps/bzle/src/uuid.c
@@ -0,0 +1,278 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2011 Nokia Corporation
+ * Copyright (C) 2011 Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; 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 <stdlib.h>
+#include <errno.h>
+
+#include <bzle/bluetooth/uuid.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+static uint128_t bluetooth_base_uuid = {
+ .data = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+ 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB }
+};
+
+#define BASE_UUID16_OFFSET 2
+#define BASE_UUID32_OFFSET 0
+
+#else
+static uint128_t bluetooth_base_uuid = {
+ .data = { 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
+ 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+};
+
+#define BASE_UUID16_OFFSET 12
+#define BASE_UUID32_OFFSET BASE_UUID16_OFFSET
+
+#endif
+
+static void bt_uuid16_to_uuid128(const bt_uuid_t *src, bt_uuid_t *dst)
+{
+ dst->value.u128 = bluetooth_base_uuid;
+ dst->type = BT_UUID128;
+
+ memcpy(&dst->value.u128.data[BASE_UUID16_OFFSET],
+ &src->value.u16, sizeof(src->value.u16));
+}
+
+static void bt_uuid32_to_uuid128(const bt_uuid_t *src, bt_uuid_t *dst)
+{
+ dst->value.u128 = bluetooth_base_uuid;
+ dst->type = BT_UUID128;
+
+ memcpy(&dst->value.u128.data[BASE_UUID32_OFFSET],
+ &src->value.u32, sizeof(src->value.u32));
+}
+
+void bt_uuid_to_uuid128(const bt_uuid_t *src, bt_uuid_t *dst)
+{
+ switch (src->type) {
+ case BT_UUID128:
+ *dst = *src;
+ break;
+ case BT_UUID32:
+ bt_uuid32_to_uuid128(src, dst);
+ break;
+ case BT_UUID16:
+ bt_uuid16_to_uuid128(src, dst);
+ break;
+ default:
+ break;
+ }
+}
+
+static int bt_uuid128_cmp(const bt_uuid_t *u1, const bt_uuid_t *u2)
+{
+ return memcmp(&u1->value.u128, &u2->value.u128, sizeof(uint128_t));
+}
+
+int bt_uuid16_create(bt_uuid_t *btuuid, uint16_t value)
+{
+ memset(btuuid, 0, sizeof(bt_uuid_t));
+ btuuid->type = BT_UUID16;
+ btuuid->value.u16 = value;
+
+ return 0;
+}
+
+int bt_uuid32_create(bt_uuid_t *btuuid, uint32_t value)
+{
+ memset(btuuid, 0, sizeof(bt_uuid_t));
+ btuuid->type = BT_UUID32;
+ btuuid->value.u32 = value;
+
+ return 0;
+}
+
+int bt_uuid128_create(bt_uuid_t *btuuid, uint128_t value)
+{
+ memset(btuuid, 0, sizeof(bt_uuid_t));
+ btuuid->type = BT_UUID128;
+ btuuid->value.u128 = value;
+
+ return 0;
+}
+
+int bt_uuid_cmp(const bt_uuid_t *uuid1, const bt_uuid_t *uuid2)
+{
+ bt_uuid_t u1, u2;
+
+ bt_uuid_to_uuid128(uuid1, &u1);
+ bt_uuid_to_uuid128(uuid2, &u2);
+
+ return bt_uuid128_cmp(&u1, &u2);
+}
+
+/*
+ * convert the UUID to string, copying a maximum of n characters.
+ */
+int bt_uuid_to_string(const bt_uuid_t *uuid, char *str, size_t n)
+{
+ if (!uuid) {
+ 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;
+
+ uint128_t nvalue;
+ const uint8_t *data = (uint8_t *) &nvalue;
+
+ hton128(&uuid->value.u128, &nvalue);
+
+ 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",
+ ntohl(data0), ntohs(data1),
+ ntohs(data2), ntohs(data3),
+ ntohl(data4), ntohs(data5));
+ }
+ break;
+ default:
+ snprintf(str, n, "Type of UUID (%x) unknown.", uuid->type);
+ return -EINVAL; /* Enum type of UUID not set */
+ }
+
+ return 0;
+}
+
+static inline int is_uuid128(const char *string)
+{
+ return (strlen(string) == 36 &&
+ string[8] == '-' &&
+ string[13] == '-' &&
+ string[18] == '-' &&
+ string[23] == '-');
+}
+
+static inline int is_uuid32(const char *string)
+{
+ return (strlen(string) == 8 || strlen(string) == 10);
+}
+
+static inline int is_uuid16(const char *string)
+{
+ return (strlen(string) == 4 || strlen(string) == 6);
+}
+
+static int bt_string_to_uuid16(bt_uuid_t *uuid, const char *string)
+{
+ uint16_t u16;
+ char *endptr = NULL;
+
+ u16 = strtol(string, &endptr, 16);
+ if (endptr && *endptr == '\0') {
+ bt_uuid16_create(uuid, u16);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int bt_string_to_uuid32(bt_uuid_t *uuid, const char *string)
+{
+ uint32_t u32;
+ char *endptr = NULL;
+
+ u32 = strtol(string, &endptr, 16);
+ if (endptr && *endptr == '\0') {
+ bt_uuid32_create(uuid, u32);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int bt_string_to_uuid128(bt_uuid_t *uuid, const char *string)
+{
+ uint32_t data0, data4;
+ uint16_t data1, data2, data3, data5;
+ uint128_t n128, u128;
+ uint8_t *val = (uint8_t *) &n128;
+
+ if (sscanf(string, "%08x-%04hx-%04hx-%04hx-%08x%04hx",
+ &data0, &data1, &data2,
+ &data3, &data4, &data5) != 6)
+ return -EINVAL;
+
+ data0 = htonl(data0);
+ data1 = htons(data1);
+ data2 = htons(data2);
+ data3 = htons(data3);
+ data4 = htonl(data4);
+ data5 = htons(data5);
+
+ memcpy(&val[0], &data0, 4);
+ memcpy(&val[4], &data1, 2);
+ memcpy(&val[6], &data2, 2);
+ memcpy(&val[8], &data3, 2);
+ memcpy(&val[10], &data4, 4);
+ memcpy(&val[14], &data5, 2);
+
+ ntoh128(&n128, &u128);
+
+ bt_uuid128_create(uuid, u128);
+
+ return 0;
+}
+
+int bt_string_to_uuid(bt_uuid_t *uuid, const char *string)
+{
+ if (is_uuid128(string))
+ return bt_string_to_uuid128(uuid, string);
+ else if (is_uuid32(string))
+ return bt_string_to_uuid32(uuid, string);
+ else if (is_uuid16(string))
+ return bt_string_to_uuid16(uuid, string);
+
+ return -EINVAL;
+}
+
+int bt_uuid_strcmp(const void *a, const void *b)
+{
+ return strcasecmp(a, b);
+}