- When there is no room for returning the result, nss backend

  have to return ERANGE and terminate with NS_RETURN.
- When gethostbyname_r(3) and the friends end with an error,
  set errno to the value nss backend returns, and return errno
  value.

PR:		kern/131623
MFC after:	2 weeks

1 files changed, 6 insertions, 2 deletions

diff --git a/lib/libc/net/getnetbydns.c b/lib/libc/net/getnetbydns.c
index 6fd7d2f..79e40a5 100644
--- a/lib/libc/net/getnetbydns.c
+++ b/lib/libc/net/getnetbydns.c
@@ -355,8 +355,10 @@ _dns_getnetbyaddr(void *rval, void *cb_data, va_list ap)
 			net >>= 8;
 		ne.n_net = net;
 		if (__copy_netent(&ne, nptr, buffer, buflen) != 0) {
+			*errnop = errno;
+			RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
 			*h_errnop = statp->res_h_errno;
-			return (NS_NOTFOUND);
+			return (NS_RETURN);
 		}
 		*((struct netent **)rval) = nptr;
 		return (NS_SUCCESS);
@@ -431,8 +433,10 @@ _dns_getnetbyname(void *rval, void *cb_data, va_list ap)
 		return (NS_NOTFOUND);
 	}
 	if (__copy_netent(&ne, nptr, buffer, buflen) != 0) {
+		*errnop = errno;
+		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
 		*h_errnop = statp->res_h_errno;
-		return (NS_NOTFOUND);
+		return (NS_RETURN);
 	}
 	*((struct netent **)rval) = nptr;
 	return (NS_SUCCESS);