diff options
Diffstat (limited to 'inet/gethstbyad_r.c')
| -rw-r--r-- | inet/gethstbyad_r.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/inet/gethstbyad_r.c b/inet/gethstbyad_r.c index 366cd55f17..137bdf9323 100644 --- a/inet/gethstbyad_r.c +++ b/inet/gethstbyad_r.c @@ -18,6 +18,7 @@ Boston, MA 02111-1307, USA. */ #include <netdb.h> +#include <string.h> #define LOOKUP_TYPE struct hostent @@ -28,6 +29,17 @@ #define NEED_H_ERRNO 1 #define NEED__RES 1 #define NEED__RES_HCONF 1 +/* If the addr parameter is the IPv6 unspecified address no query must + be performed. */ +#define PREPROCESS \ + if (__builtin_expect (len == sizeof (struct in6_addr) \ + && memcmp (&in6addr_any, addr, \ + sizeof (struct in6_addr)) == 0, 0)) \ + { \ + *h_errnop = HOST_NOT_FOUND; \ + *result = NULL; \ + return ENOENT; \ + } #define POSTPROCESS \ if (status == NSS_STATUS_SUCCESS) \ { \ |