getservbyport_r: fix wrong result if getnameinfo fails with EAI_OVERFLOW

EAI_OVERFLOW should be propagated as ERANGE to inform the caller about
the need to expand the buffer.

diff --git a/src/network/getservbyport_r.c b/src/network/getservbyport_r.c
index d3a22b8..e4cc307 100644 (file)
--- a/src/network/getservbyport_r.c
+++ b/src/network/getservbyport_r.c
@@ -46,6 +46,8 @@ int getservbyport_r(int port, const char *prots,
        case EAI_MEMORY:
        case EAI_SYSTEM:
                return ENOMEM;
+       case EAI_OVERFLOW:
+               return ERANGE;
        default:
                return ENOENT;
        case 0: