fix gethostby*_r result pointer value on error

[musl] / src / network / gethostbyname2_r.c

diff --git a/src/network/gethostbyname2_r.c b/src/network/gethostbyname2_r.c
index aa8b0a9..81f71d2 100644 (file)
--- a/src/network/gethostbyname2_r.c
+++ b/src/network/gethostbyname2_r.c
@@ -17,6 +17,7 @@ int gethostbyname2_r(const char *name, int af,
        int i, cnt;
        size_t align, need;
 
+       *res = 0;
        cnt = __lookup_name(addrs, canon, name, af, AI_CANONNAME);
        if (cnt<0) switch (cnt) {
        case EAI_NONAME: