add API to update hostname

carbonrobotics · Dec 13, 2024 · e306289 · e306289
1 parent 2fa63ad
commit e306289
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diff --git a/include/zephyr/net/hostname.h b/include/zephyr/net/hostname.h
@@ -27,6 +27,18 @@ extern "C" {
 	 (IS_ENABLED(CONFIG_NET_HOSTNAME_UNIQUE) ?	\
 	  sizeof("0011223344556677") - 1 : 0))
 
+/**
+ * @brief Set the device hostname
+ */
+#if defined(CONFIG_NET_HOSTNAME_ENABLE)
+int net_hostname_set(const char *newHostname);
+#else
+int net_hostname_set(const char *newHostname) {
+	return -ENOTSUP;
+}
+#endif
+
+
 /**
  * @brief Get the device hostname
  *

diff --git a/subsys/net/hostname.c b/subsys/net/hostname.c
@@ -11,18 +11,39 @@
 #include <zephyr/logging/log.h>
 LOG_MODULE_REGISTER(net_hostname, CONFIG_NET_HOSTNAME_LOG_LEVEL);
 
+#include <string.h>
+
 #include <zephyr/zephyr.h>
 
 #include <zephyr/net/hostname.h>
 #include <zephyr/net/net_core.h>
 
 static char hostname[NET_HOSTNAME_MAX_LEN + 1];
 
+#if IS_ENABLED(CONFIG_LOG_BACKEND_NET)
+extern int log_backend_net_set_hostname(const char *newHostname);
+#endif
+
 const char *net_hostname_get(void)
 {
 	return hostname;
 }
 
+int net_hostname_set(const char *newHostname) {
+	if(!newHostname) {
+		return -EFAULT;
+	}
+
+	strncpy(hostname, newHostname, NET_HOSTNAME_MAX_LEN);
+
+	// update syslog hostname if enabled
+#if IS_ENABLED(CONFIG_LOG_BACKEND_NET)
+	return log_backend_net_set_hostname(hostname);
+#else
+	return 0;
+#endif
+}
+
 #if defined(CONFIG_NET_HOSTNAME_UNIQUE)
 int net_hostname_set_postfix(const uint8_t *hostname_postfix,
 			     int postfix_len)