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net: Using const char * in net_hostname_set()

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When calling net_hostname_set() from C++, you will hit compile
errors if you attempt to use a const char *. Since the internals
of net_hostname_set() just uses memcpy(), we should pass in the
new hostname as a const char * to better support C++.

Tested using samples/cpp/hello_world, with an added call to
net_hostname_set().

Signed-off-by: Andrew Kontra <andrew@legatoxp.com>
This commit is contained in:
Andrew Kontra
2025-11-24 11:28:59 +01:00
committed by Fabio Baltieri
parent 15dabaa595
commit c47de21db3
2 changed files with 3 additions and 3 deletions
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4
include/zephyr/net/hostname.h
View File

@@ -76,9 +76,9 @@ static inline const char *net_hostname_get(void)
* @return 0 if ok, <0 on error
*/
#if defined(CONFIG_NET_HOSTNAME_DYNAMIC)
int net_hostname_set(char *host, size_t len);
int net_hostname_set(const char *host, size_t len);
#else
static inline int net_hostname_set(char *host, size_t len)
static inline int net_hostname_set(const char *host, size_t len)
{
ARG_UNUSED(host);
ARG_UNUSED(len);

2
subsys/net/hostname.c
View File

@@ -43,7 +43,7 @@ const char *net_hostname_get(void)
}
#if defined(CONFIG_NET_HOSTNAME_DYNAMIC)
int net_hostname_set(char *host, size_t len)
int net_hostname_set(const char *host, size_t len)
{
if (len > NET_HOSTNAME_MAX_LEN) {
return -ENOMEM;