[PATCH] Removed warnings in nfs_sockaddr2universal()

[Steve Dickson <steved@redhat.com>]

in function 'nfs_sockaddr2universal',
    inlined from 'nsm_xmit_getaddr.constprop' at ../../support/nsm/rpc.c:251:17:
../../support/nfs/getport.c:459:24: warning: 'strndup' specified bound 108 exceeds source size 26 [-Wstringop-overread]
  459 |                 return strndup(sun->sun_path, sizeof(sun->sun_path));
      |                        ^

Signed-off-by: Steve Dickson <steved@redhat.com>
---
This is a chatgpt solution to remove the warning... untested (yet)
---
 support/nfs/getport.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/support/nfs/getport.c b/support/nfs/getport.c
index 813f7bf9..608e185b 100644
--- a/support/nfs/getport.c
+++ b/support/nfs/getport.c
@@ -452,11 +452,12 @@ char *nfs_sockaddr2universal(const struct sockaddr *sap)
 	uint16_t port;
 	size_t count;
 	char *result;
-	int len;
+	int len = sizeof(struct sockaddr);
 
 	switch (sap->sa_family) {
 	case AF_LOCAL:
-		return strndup(sun->sun_path, sizeof(sun->sun_path));
+		size_t path_len = len - offsetof(struct sockaddr_un, sun_path);
+		return strndup(sun->sun_path, path_len);
 	case AF_INET:
 		if (inet_ntop(AF_INET, (const void *)&sin->sin_addr.s_addr,
 					buf, (socklen_t)sizeof(buf)) == NULL)
-- 
2.54.0