blob: 1d3f80f1048da123cc4e9df4d15c9755736608fc [file] [log] [blame]
/** @file
* @brief Hostname configuration
*/
/*
* Copyright (c) 2017 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(net_hostname, CONFIG_NET_HOSTNAME_LOG_LEVEL);
#include <zephyr/zephyr.h>
#include <zephyr/net/hostname.h>
#include <zephyr/net/net_core.h>
static char hostname[NET_HOSTNAME_MAX_LEN + 1];
const char *net_hostname_get(void)
{
return hostname;
}
#if defined(CONFIG_NET_HOSTNAME_UNIQUE)
int net_hostname_set_postfix(const uint8_t *hostname_postfix,
int postfix_len)
{
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE)
static bool postfix_set;
#endif
int pos = 0;
int i;
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE)
if (postfix_set) {
return -EALREADY;
}
#endif
NET_ASSERT(postfix_len > 0);
/* Note that we convert the postfix to hex (2 chars / byte) */
if ((postfix_len * 2) >
(NET_HOSTNAME_MAX_LEN - (sizeof(CONFIG_NET_HOSTNAME) - 1))) {
return -EMSGSIZE;
}
for (i = 0; i < postfix_len; i++, pos += 2) {
snprintk(&hostname[sizeof(CONFIG_NET_HOSTNAME) - 1 + pos],
2 + 1, "%02x", hostname_postfix[i]);
}
NET_DBG("New hostname %s", hostname);
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE)
postfix_set = true;
#endif
return 0;
}
#endif /* CONFIG_NET_HOSTNAME_UNIQUE */
void net_hostname_init(void)
{
memcpy(hostname, CONFIG_NET_HOSTNAME, sizeof(CONFIG_NET_HOSTNAME) - 1);
NET_DBG("Hostname set to %s", CONFIG_NET_HOSTNAME);
}