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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2013 Intel Corporation. All rights reserved.
*
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#define PROPERTY_VALUE_MAX 32
#define PROPERTY_KEY_MAX 32
#define BLUETOOTH_MODE_PROPERTY_NAME "persist.sys.bluetooth.mode"
#define BLUETOOTH_MODE_PROPERTY_HANDSFREE "persist.sys.bluetooth.handsfree"
static inline int property_get(const char *key, char *value,
const char *default_value)
{
const char *prop = NULL;
if (!strcmp(key, BLUETOOTH_MODE_PROPERTY_NAME))
prop = getenv("BLUETOOTH_MODE");
if (!strcmp(key, BLUETOOTH_MODE_PROPERTY_HANDSFREE))
prop = getenv("BLUETOOTH_HANDSFREE_MODE");
if (!prop)
prop = default_value;
if (prop) {
strncpy(value, prop, PROPERTY_VALUE_MAX);
value[PROPERTY_VALUE_MAX - 1] = '\0';
return strlen(value);
}
return 0;
}
/* property_set: returns 0 on success, < 0 on failure
*/
static inline int property_set(const char *key, const char *value)
{
static const char SYSTEM_SOCKET_PATH[] = "\0android_system";
struct sockaddr_un addr;
char msg[256];
int fd, len;
fd = socket(PF_LOCAL, SOCK_DGRAM, 0);
if (fd < 0)
return -1;
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
memcpy(addr.sun_path, SYSTEM_SOCKET_PATH, sizeof(SYSTEM_SOCKET_PATH));
if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
close(fd);
return 0;
}
len = snprintf(msg, sizeof(msg), "%s=%s", key, value);
if (send(fd, msg, len + 1, 0) < 0) {
close(fd);
return -1;
}
close(fd);
return 0;
}
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