using my_gethostbyname_r in Ndb_getInAddr

ndb/src/common/portlib/NdbTCP.cpp

@@ -16,29 +16,27 @@
 
 
 #include <ndb_global.h>
-#include <NdbMutex.h>
+#include <my_net.h>
 #include <NdbTCP.h>
 
-#if defined NDB_WIN32 || defined SCO
-static NdbMutex & LOCK_gethostbyname = * NdbMutex_Create();
-#else
-static NdbMutex LOCK_gethostbyname = NDB_MUTEX_INITIALIZER;
-#endif
-
 extern "C"
 int 
 Ndb_getInAddr(struct in_addr * dst, const char *address) {
   DBUG_ENTER("Ndb_getInAddr");
-  struct hostent * hostPtr;
-  NdbMutex_Lock(&LOCK_gethostbyname);
-  hostPtr = gethostbyname(address);
-  if (hostPtr != NULL) {
-    dst->s_addr = ((struct in_addr *) *hostPtr->h_addr_list)->s_addr;
-    NdbMutex_Unlock(&LOCK_gethostbyname);
+  {
+    int tmp_errno;
+    struct hostent tmp_hostent, *hp;
+    char buff[GETHOSTBYNAME_BUFF_SIZE];
+    hp = my_gethostbyname_r(address,&tmp_hostent,buff,sizeof(buff),
+			    &tmp_errno);
+    if (hp)
+    {
+      memcpy(dst, hp->h_addr, min(sizeof(*dst), (size_t) hp->h_length));
+      my_gethostbyname_r_free();
       DBUG_RETURN(0);
     }
-  NdbMutex_Unlock(&LOCK_gethostbyname);
-  
+    my_gethostbyname_r_free();
+  }
   /* Try it as aaa.bbb.ccc.ddd. */
   dst->s_addr = inet_addr(address);
   if (dst->s_addr !=