73 lines
1.4 KiB
C
73 lines
1.4 KiB
C
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/** @file
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* @brief Hostname configuration
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*/
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/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#if defined(CONFIG_NET_DEBUG_HOSTNAME)
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#define SYS_LOG_DOMAIN "net/hostname"
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#define NET_LOG_ENABLED 1
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#endif
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#include <zephyr.h>
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#include <net/net_core.h>
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#if defined(CONFIG_NET_HOSTNAME_UNIQUE)
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/* Allocate extra space to append MAC address to hostname */
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#define EXTRA_SPACE (8 * 2)
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#else
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#define EXTRA_SPACE 0
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#endif /* CONFIG_NET_HOSTNAME_UNIQUE */
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static char hostname[sizeof(CONFIG_NET_HOSTNAME) - 1 + EXTRA_SPACE];
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const char *net_hostname_get(void)
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{
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return hostname;
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}
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#if defined(CONFIG_NET_HOSTNAME_UNIQUE)
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int net_hostname_set_postfix(const u8_t *hostname_postfix,
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int postfix_len)
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{
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static bool postfix_set;
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int pos = 0;
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int i;
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if (postfix_set) {
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return -EALREADY;
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}
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NET_ASSERT(postfix_len > 0);
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/* Note that we convert the postfix to hex (2 chars / byte) */
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if ((postfix_len * 2) >
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((sizeof(hostname) - 1) - (sizeof(CONFIG_NET_HOSTNAME) - 1))) {
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return -EMSGSIZE;
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}
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for (i = 0; i < postfix_len; i++, pos += 2) {
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snprintk(&hostname[sizeof(CONFIG_NET_HOSTNAME) - 1 + pos],
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2 + 1, "%02x", hostname_postfix[i]);
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}
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NET_DBG("New hostname %s", hostname);
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postfix_set = true;
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return 0;
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}
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#endif /* CONFIG_NET_HOSTNAME_UNIQUE */
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void net_hostname_init(void)
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{
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memcpy(hostname, CONFIG_NET_HOSTNAME, sizeof(CONFIG_NET_HOSTNAME) - 1);
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NET_DBG("Hostname set to %s", hostname);
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}
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