The given size must be the size of the destination buffer, not the size of the (binary) address representation.
This fixes GitHub issue #1599. The bug was introduced in 92149f9a82a9b55c598f1cc815bc330c555f3561 which is in 2.4+. The fix must be backported there. --- src/tools.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools.c b/src/tools.c index 9e629e5bd..b9a1121c6 100644 --- a/src/tools.c +++ b/src/tools.c @@ -1374,7 +1374,7 @@ char * sa2str(const struct sockaddr_storage *addr, int port, int map_ports) default: return NULL; } - inet_ntop(addr->ss_family, ptr, buffer, get_addr_len(addr)); + inet_ntop(addr->ss_family, ptr, buffer, sizeof(buffer)); if (map_ports) return memprintf(&out, "%s:%+d", buffer, port); else -- 2.36.1