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-rw-r--r--nss/getXXbyYY_r.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/nss/getXXbyYY_r.c b/nss/getXXbyYY_r.c
index 7e567a1325..3c7f2a14bb 100644
--- a/nss/getXXbyYY_r.c
+++ b/nss/getXXbyYY_r.c
@@ -115,6 +115,14 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
#endif
#ifdef HANDLE_DIGITS_DOTS
+ /* We have to test for the use of IPv6 which can only be done by
+ examining `_res'. */
+ if ((_res.options & RES_INIT) == 0 && res_init () == -1)
+ {
+ *h_errnop = NETDB_INTERNAL;
+ *result = NULL;
+ return -1;
+ }
# define resbuf (*resbuf)
# include "digits_dots.c"
# undef resbuf