| /** @file |
| * @brief Hostname configuration |
| */ |
| |
| /* |
| * Copyright (c) 2017 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <logging/log.h> |
| LOG_MODULE_REGISTER(net_hostname, CONFIG_NET_HOSTNAME_LOG_LEVEL); |
| |
| #include <zephyr.h> |
| |
| #include <net/hostname.h> |
| #include <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", log_strdup(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); |
| } |