Merging

BitKeeper/etc/logging_ok:
  auto-union
include/mysql.h:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/sql_show.cc:
  Auto merged

include/mysql.h

@@ -122,7 +122,8 @@ typedef struct st_mysql_data {
 struct st_mysql_options {
   unsigned int connect_timeout,client_flag;
   unsigned int port;
-  char *host,*init_command,*user,*password,*unix_socket,*db;
+  char *host,*user,*password,*unix_socket,*db;
+  struct st_dynamic_array *init_commands;
   char *my_cnf_file,*my_cnf_group, *charset_dir, *charset_name;
   char *ssl_key;				/* PEM key file */
   char *ssl_cert;				/* PEM cert file */

libmysql/libmysql.c

@@ -935,6 +935,27 @@ static const char *default_options[]=
 static TYPELIB option_types={array_elements(default_options)-1,
 			     "options",default_options};
 
+static int add_init_command(struct st_mysql_options *options, const char *cmd)
+{
+  char **ptr, *tmp;
+
+  if (!options->init_commands)
+  {
+    options->init_commands= (DYNAMIC_ARRAY*)my_malloc(sizeof(DYNAMIC_ARRAY),
+						      MYF(MY_WME));
+    init_dynamic_array(options->init_commands,sizeof(char*),0,5 CALLER_INFO);
+  }
+
+  if (!(tmp= my_strdup(cmd,MYF(MY_WME))) ||
+      insert_dynamic(options->init_commands, &tmp))
+  {
+    my_free(tmp, MYF(MY_ALLOW_ZERO_PTR));
+    return 1;
+  }
+
+  return 0;
+}
+
 static void mysql_read_default_options(struct st_mysql_options *options,
 				       const char *filename,const char *group)
 {
@@ -1003,11 +1024,7 @@ static void mysql_read_default_options(struct st_mysql_options *options,
 	  }
 	  break;
 	case 8:				/* init-command */
-	  if (opt_arg)
+	  add_init_command(options,opt_arg);
-	  {
-	    my_free(options->init_command,MYF(MY_ALLOW_ZERO_PTR));
-	    options->init_command=my_strdup(opt_arg,MYF(MY_WME));
-	  }
 	  break;
 	case 9:				/* host */
 	  if (opt_arg)
@@ -2328,13 +2345,29 @@ Try also with PIPE or TCP/IP
     net->compress=1;
   if (db && mysql_select_db(mysql,db))
     goto error;
-  if (mysql->options.init_command)
+
+  if (mysql->options.init_commands)
   {
+    DYNAMIC_ARRAY *init_commands= mysql->options.init_commands;
+    char **ptr= (char**)init_commands->buffer;
+    char **end= ptr + init_commands->elements;
+
     my_bool reconnect=mysql->reconnect;
     mysql->reconnect=0;
-    if (mysql_query(mysql,mysql->options.init_command))
+
+    for (; ptr<end; ptr++)
+    {
+      MYSQL_RES *res;
+      if (mysql_query(mysql,*ptr))
 	goto error;
-    mysql_free_result(mysql_use_result(mysql));
+      if (mysql->fields)
+      {
+	if (!(res= mysql_use_result(mysql)))
+	  goto error;
+	mysql_free_result(res);
+      }
+    }
+
     mysql->reconnect=reconnect;
   }
 
@@ -2579,7 +2612,6 @@ mysql_close(MYSQL *mysql)
     my_free(mysql->user,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->passwd,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->db,MYF(MY_ALLOW_ZERO_PTR));
-    my_free(mysql->options.init_command,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.user,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.host,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.password,MYF(MY_ALLOW_ZERO_PTR));
@@ -2589,6 +2621,11 @@ mysql_close(MYSQL *mysql)
     my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.charset_dir,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.charset_name,MYF(MY_ALLOW_ZERO_PTR));
+    if (mysql->options.init_commands)
+    {
+      delete_dynamic(mysql->options.init_commands);
+      my_free((char*)mysql->options.init_commands,MYF(MY_WME));
+    }
 #ifdef HAVE_OPENSSL
     mysql_ssl_free(mysql);
 #endif /* HAVE_OPENSSL */
@@ -3334,8 +3371,7 @@ mysql_options(MYSQL *mysql,enum mysql_option option, const char *arg)
       mysql->options.client_flag&= ~CLIENT_LOCAL_FILES;
     break;
   case MYSQL_INIT_COMMAND:
-    my_free(mysql->options.init_command,MYF(MY_ALLOW_ZERO_PTR));
+    add_init_command(&mysql->options,arg);
-    mysql->options.init_command=my_strdup(arg,MYF(MY_WME));
     break;
   case MYSQL_READ_DEFAULT_FILE:
     my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));

libmysqld/libmysqld.c

@@ -219,6 +219,27 @@ static const char *default_options[]=
 static TYPELIB option_types={array_elements(default_options)-1,
 			     "options",default_options};
 
+static int add_init_command(struct st_mysql_options *options, const char *cmd)
+{
+  char **ptr, *tmp;
+
+  if (!options->init_commands)
+  {
+    options->init_commands= (DYNAMIC_ARRAY*)my_malloc(sizeof(DYNAMIC_ARRAY),
+						      MYF(MY_WME));
+    init_dynamic_array(options->init_commands,sizeof(char*),0,5 CALLER_INFO);
+  }
+
+  if (!(tmp= my_strdup(cmd,MYF(MY_WME))) ||
+      insert_dynamic(options->init_commands, &tmp))
+  {
+    my_free(tmp, MYF(MY_ALLOW_ZERO_PTR));
+    return 1;
+  }
+
+  return 0;
+}
+
 static void mysql_read_default_options(struct st_mysql_options *options,
 				       const char *filename,const char *group)
 {
@@ -288,11 +309,7 @@ static void mysql_read_default_options(struct st_mysql_options *options,
 	  }
 	  break;
 	case 8:				/* init-command */
-	  if (opt_arg)
+	  add_init_command(options,opt_arg);
-	  {
-	    my_free(options->init_command,MYF(MY_ALLOW_ZERO_PTR));
-	    options->init_command=my_strdup(opt_arg,MYF(MY_WME));
-	  }
 	  break;
 	case 9:				/* host */
 	  if (opt_arg)
@@ -589,7 +606,6 @@ mysql_close(MYSQL *mysql)
   DBUG_ENTER("mysql_close");
   if (mysql)					/* Some simple safety */
   {
-    my_free(mysql->options.init_command,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.user,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.host,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.password,MYF(MY_ALLOW_ZERO_PTR));
@@ -599,6 +615,11 @@ mysql_close(MYSQL *mysql)
     my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.charset_dir,MYF(MY_ALLOW_ZERO_PTR));
     my_free(mysql->options.charset_name,MYF(MY_ALLOW_ZERO_PTR));
+    if (mysql->options.init_commands)
+    {
+      delete_dynamic(mysql->options.init_commands);
+      my_free((char*)mysql->options.init_commands,MYF(MY_WME));
+    }
     /* Clear pointers for better safety */
     bzero((char*) &mysql->options,sizeof(mysql->options));
 #ifdef HAVE_OPENSSL
@@ -1161,8 +1182,7 @@ mysql_options(MYSQL *mysql,enum mysql_option option, const char *arg)
       mysql->options.client_flag&= ~CLIENT_LOCAL_FILES;
     break;
   case MYSQL_INIT_COMMAND:
-    my_free(mysql->options.init_command,MYF(MY_ALLOW_ZERO_PTR));
+    add_init_command(&mysql->options,arg);
-    mysql->options.init_command=my_strdup(arg,MYF(MY_WME));
     break;
   case MYSQL_READ_DEFAULT_FILE:
     my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));

sql/field.cc

@@ -199,7 +199,7 @@ void Field::copy_from_tmp(int row_offset)
 bool Field::send_binary(Protocol *protocol)
 {
   char buff[MAX_FIELD_WIDTH];
-  String tmp(buff,sizeof(buff),default_charset_info);
+  String tmp(buff,sizeof(buff),charset());
   val_str(&tmp,&tmp);
   return protocol->store(tmp.ptr(), tmp.length());
 }
@@ -207,11 +207,17 @@ bool Field::send_binary(Protocol *protocol)
 
 void Field_num::add_zerofill_and_unsigned(String &res) const
 {
-  res.length((uint) strlen(res.ptr()));		// Fix length
+  uint oldlen=res.length();
-  if (unsigned_flag)
+  if (oldlen < res.alloced_length())
-    res.append(" unsigned");
+  {
-  if (zerofill)
+    uint len=res.alloced_length()-oldlen;
-    res.append(" zerofill");
+    char *end=(char*)(res.ptr()+oldlen);
+    CHARSET_INFO *cs=res.charset();
+    len=cs->snprintf(cs,end,len,"%s%s",
+			unsigned_flag ? " unsigned" : "",
+			zerofill      ? " zerofill" : "");
+    res.length(len+oldlen);
+  }
 }
 
 void Field_num::make_field(Send_field *field)
@@ -241,6 +247,22 @@ void Field_str::make_field(Send_field *field)
   field->decimals=0;
 }
 
+void Field_str::add_binary_or_charset(String &res) const
+{
+  uint oldlen=res.length();
+  if (oldlen < res.alloced_length())
+  {
+    CHARSET_INFO *cs=res.charset();
+    uint len=res.alloced_length() - oldlen;
+    char *end=(char*)(res.ptr()+oldlen);
+    if (binary())
+      len=cs->snprintf(cs,end,len," binary");
+    else
+      len=cs->snprintf(cs,end,len," character set %s",field_charset->name);
+    res.length(oldlen+len);
+  }
+}
+
 
 uint Field::fill_cache_field(CACHE_FIELD *copy)
 {
@@ -317,6 +339,19 @@ bool Field::optimize_range(uint idx)
   return test(table->file->index_flags(idx) & HA_READ_NEXT);
 }
 
+/****************************************************************************
+  Functions for the Field_null
+****************************************************************************/
+
+void Field_null::sql_type(String &res) const
+{
+  CHARSET_INFO *cs=res.charset();
+  uint len;
+  len=cs->snprintf(cs,(char*)res.ptr(),res.alloced_length(),"null");
+  res.length(len);
+}
+
+
 /****************************************************************************
   Functions for the Field_decimal class
   This is an number stored as a pre-space (or pre-zero) string
@@ -889,12 +924,16 @@ void Field_decimal::sort_string(char *to,uint length)
 
 void Field_decimal::sql_type(String &res) const
 {
+  CHARSET_INFO *cs=res.charset();
   uint tmp=field_length;
+  uint len;
   if (!unsigned_flag)
     tmp--;
   if (dec)
     tmp--;
-  sprintf((char*) res.ptr(),"decimal(%d,%d)",tmp,dec);
+  len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),
+		   "decimal(%d,%d)",tmp,dec);
+  res.length(len);
   add_zerofill_and_unsigned(res);
 }
 
@@ -1093,7 +1132,10 @@ void Field_tiny::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_tiny::sql_type(String &res) const
 {
-  sprintf((char*) res.ptr(),"tinyint(%d)",(int) field_length);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),
+			"tinyint(%d)",(int) field_length);
+  res.length(len);
   add_zerofill_and_unsigned(res);
 }
 
@@ -1364,7 +1406,10 @@ void Field_short::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_short::sql_type(String &res) const
 {
-  sprintf((char*) res.ptr(),"smallint(%d)",(int) field_length);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),
+			"smallint(%d)",(int) field_length);
+  res.length(len);
   add_zerofill_and_unsigned(res);
 }
 
@@ -1579,7 +1624,10 @@ void Field_medium::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_medium::sql_type(String &res) const
 {
-  sprintf((char*) res.ptr(),"mediumint(%d)",(int) field_length);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(), 
+			"mediumint(%d)",(int) field_length);
+  res.length(len);
   add_zerofill_and_unsigned(res);
 }
 
@@ -1840,7 +1888,10 @@ void Field_long::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_long::sql_type(String &res) const
 {
-  sprintf((char*) res.ptr(),"int(%d)",(int) field_length);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),
+			"int(%d)",(int) field_length);
+  res.length(len);
   add_zerofill_and_unsigned(res);
 }
 
@@ -2069,7 +2120,10 @@ void Field_longlong::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_longlong::sql_type(String &res) const
 {
-  sprintf((char*) res.ptr(),"bigint(%d)",(int) field_length);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),
+			"bigint(%d)",(int) field_length);
+  res.length(len);
   add_zerofill_and_unsigned(res);
 }
 
@@ -2333,10 +2387,18 @@ bool Field_float::send_binary(Protocol *protocol)
 
 void Field_float::sql_type(String &res) const
 {
+  CHARSET_INFO *cs=res.charset();
+  uint len;
   if (dec == NOT_FIXED_DEC)
-    strmov((char*) res.ptr(),"float");
+  {
+    len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),"float");
+  }
   else
-    sprintf((char*) res.ptr(),"float(%d,%d)",(int) field_length,dec);
+  {
+    len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),
+		     "float(%d,%d)",(int) field_length,dec);
+  }
+  res.length(len);
   add_zerofill_and_unsigned(res);
 }
 
@@ -2585,10 +2647,18 @@ void Field_double::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_double::sql_type(String &res) const
 {
+  CHARSET_INFO *cs=res.charset();
+  uint len;
   if (dec == NOT_FIXED_DEC)
-    strmov((char*) res.ptr(),"double");
+  {
+    len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),"double");
+  }
   else
-    sprintf((char*) res.ptr(),"double(%d,%d)",(int) field_length,dec);
+  {
+    len=cs->snprintf(cs,(char*) res.ptr(),res.alloced_length(),
+		     "double(%d,%d)",(int) field_length,dec);
+  }
+  res.length(len);
   add_zerofill_and_unsigned(res);
 }
 
@@ -2919,7 +2989,9 @@ void Field_timestamp::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_timestamp::sql_type(String &res) const
 {
-  res.set("timestamp", 9, default_charset_info);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*)res.ptr(),res.alloced_length(),"timestamp");
+  res.length(len);
 }
 
 
@@ -3111,7 +3183,9 @@ void Field_time::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_time::sql_type(String &res) const
 {
-  res.set("time",4,default_charset_info);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*)res.ptr(),res.alloced_length(),"time");
+  res.length(len);
 }
 
 /****************************************************************************
@@ -3201,9 +3275,10 @@ String *Field_year::val_str(String *val_buffer,
 
 void Field_year::sql_type(String &res) const
 {
-  ulong length=my_sprintf((char*) res.ptr(),
+  CHARSET_INFO *cs=res.charset();
-			  ((char*) res.ptr(),"year(%d)",(int) field_length));
+  ulong len=cs->snprintf(cs,(char*)res.ptr(),res.alloced_length(),
-  res.length(length);
+			 "year(%d)",(int) field_length);
+  res.length(len);
 }
 
 
@@ -3373,7 +3448,9 @@ void Field_date::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_date::sql_type(String &res) const
 {
-  res.set("date",4,default_charset_info);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*)res.ptr(),res.alloced_length(),"date");
+  res.length(len);
 }
 
 /****************************************************************************
@@ -3536,7 +3613,9 @@ void Field_newdate::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_newdate::sql_type(String &res) const
 {
-  res.set("date",4,default_charset_info);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*)res.ptr(),res.alloced_length(),"date");
+  res.length(len);
 }
 
 
@@ -3760,7 +3839,9 @@ void Field_datetime::sort_string(char *to,uint length __attribute__((unused)))
 
 void Field_datetime::sql_type(String &res) const
 {
-  res.set("datetime",8,default_charset_info);
+  CHARSET_INFO *cs=res.charset();
+  uint len=cs->snprintf(cs,(char*)res.ptr(),res.alloced_length(),"datetime");
+  res.length(len);
 }
 
 /****************************************************************************
@@ -3889,21 +3970,16 @@ void Field_string::sort_string(char *to,uint length)
 
 void Field_string::sql_type(String &res) const
 {
-  ulong length= my_sprintf((char*) res.ptr(),
+  CHARSET_INFO *cs=res.charset();
-			   ((char*) res.ptr(), "%s(%d)",
+  ulong length= cs->snprintf(cs,(char*) res.ptr(),
+			    res.alloced_length(), "%s(%d)",
 			    (field_length > 3 &&
 			     (table->db_options_in_use &
 			      HA_OPTION_PACK_RECORD) ?
 			     "varchar" : "char"),
-			    (int) field_length));
+			    (int) field_length);
-  res.length((uint) length);
+  res.length(length);
-  if (binary())
+  add_binary_or_charset(res);
-    res.append(" binary");
-  else
-  {
-    res.append(" character set ");
-    res.append(field_charset->name);
-  }
 }
 
 
@@ -4091,17 +4167,12 @@ void Field_varstring::sort_string(char *to,uint length)
 
 void Field_varstring::sql_type(String &res) const
 {
-  ulong length= my_sprintf((char*) res.ptr(),
+  CHARSET_INFO *cs=res.charset();
-			   ((char*) res.ptr(),"varchar(%u)",
+  ulong length= cs->snprintf(cs,(char*) res.ptr(),
-			    field_length));
+			     res.alloced_length(),"varchar(%u)",
-  res.length((uint) length);
+			     field_length);
-  if (binary())
+  res.length(length);
-    res.append(" binary");
+  add_binary_or_charset(res);
-  else
-  {
-    res.append(" character set ");
-    res.append(field_charset->name);
-  }
 }
 
 char *Field_varstring::pack(char *to, const char *from, uint max_length)
@@ -4597,20 +4668,22 @@ void Field_blob::sort_string(char *to,uint length)
 
 void Field_blob::sql_type(String &res) const
 {
+  CHARSET_INFO *cs=res.charset();
   const char *str;
+  uint len;
   switch (packlength) {
   default: str="tiny"; break;
   case 2:  str=""; break;
   case 3:  str="medium"; break;
   case 4:  str="long"; break;
   }
-  res.set(str,(uint) strlen(str),my_charset_latin1);
+  
-  res.append(binary() ? "blob" : "text");
+  len=cs->snprintf(cs,(char*)res.ptr(),res.alloced_length(),"%s%s%s%s",
-  if (!binary())
+		   str,
-  {
+		   binary() ? "blob" : "text",
-    res.append(" character set ");
+		   binary() ? "" : " character set ",
-    res.append(field_charset->name);
+		   binary() ? "" : field_charset->name);
-  }
+  res.length(len);
 }
 
 
@@ -4982,15 +5055,7 @@ void Field_enum::sql_type(String &res) const
     flag=1;
   }
   res.append(')');
-  if (binary())
+  add_binary_or_charset(res);
-  {
-    res.append(" binary");
-  }
-  else
-  {
-    res.append(" character set ");
-    res.append(field_charset->name);
-  }
 }
 
 
@@ -5112,15 +5177,7 @@ void Field_set::sql_type(String &res) const
     flag=1;
   }
   res.append(')');
-  if (binary())
+  add_binary_or_charset(res);
-  {
-    res.append(" binary");
-  }
-  else
-  {
-    res.append(" character set ");
-    res.append(field_charset->name);
-  }
 }
 
 /* returns 1 if the fields are equally defined */

sql/field.h

@@ -262,6 +262,7 @@ public:
 	   unireg_check_arg, field_name_arg, table_arg)
     { field_charset=charset; }
   Item_result result_type () const { return STRING_RESULT; }
+  void add_binary_or_charset(String &res) const;
   uint decimals() const { return NOT_FIXED_DEC; }
   void make_field(Send_field *);
   uint size_of() const { return sizeof(*this); }
@@ -556,7 +557,7 @@ public:
   int cmp(const char *a, const char *b) { return 0;}
   void sort_string(char *buff, uint length)  {}
   uint32 pack_length() const { return 0; }
-  void sql_type(String &str) const { str.set("null",4,my_thd_charset); }
+  void sql_type(String &str) const;
   uint size_of() const { return sizeof(*this); }
 };
 

sql/sql_show.cc

@@ -711,7 +711,7 @@ mysqld_show_fields(THD *thd, TABLE_LIST *table_list,const char *wild,
       {
         byte *pos;
         uint flags=field->flags;
-        String type(tmp,sizeof(tmp),default_charset_info);
+        String type(tmp,sizeof(tmp),current_thd->thd_charset);
         uint col_access;
         bool null_default_value=0;
 

sql/udf_example.cc

@@ -126,6 +126,8 @@ typedef long long longlong;
 #include <m_ctype.h>
 #include <m_string.h>		// To get strmov()
 
+static pthread_mutex_t LOCK_hostname;
+
 #ifdef HAVE_DLOPEN
 
 /* These must be right or mysqld will not find the symbol! */
@@ -282,8 +284,8 @@ char *metaphon(UDF_INIT *initid, UDF_ARGS *args, char *result,
 
   for (n = ntrans + 1, n_end = ntrans + sizeof(ntrans)-2;
 	word != w_end && n < n_end; word++ )
-    if ( isalpha ( *word ))
+    if ( my_isalpha ( my_charset_latin1, *word ))
-      *n++ = toupper ( *word );
+      *n++ = my_toupper ( my_charset_latin1, *word );
 
   if ( n == ntrans + 1 )	/* return empty string if 0 bytes */
   {
@@ -583,6 +585,8 @@ longlong myfunc_int(UDF_INIT *initid, UDF_ARGS *args, char *is_null,
     case REAL_RESULT:			// Add numers as longlong
       val += (longlong) *((double*) args->args[i]);
       break;
+    default:
+      break;
     }
   }
   return val;
@@ -642,8 +646,6 @@ longlong sequence(UDF_INIT *initid, UDF_ARGS *args, char *is_null,
 **
 ****************************************************************************/
 
-#if defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
-
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
@@ -651,9 +653,11 @@ longlong sequence(UDF_INIT *initid, UDF_ARGS *args, char *is_null,
 
 extern "C" {
 my_bool lookup_init(UDF_INIT *initid, UDF_ARGS *args, char *message);
+void lookup_deinit(UDF_INIT *initid);
 char *lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
 	     unsigned long *length, char *null_value, char *error);
 my_bool reverse_lookup_init(UDF_INIT *initid, UDF_ARGS *args, char *message);
+void reverse_lookup_deinit(UDF_INIT *initid);
 char *reverse_lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
 		     unsigned long *length, char *null_value, char *error);
 }
@@ -676,9 +680,19 @@ my_bool lookup_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
   }
   initid->max_length=11;
   initid->maybe_null=1;
+#if !defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
+  (void) pthread_mutex_init(&LOCK_hostname,MY_MUTEX_INIT_SLOW);
+#endif
   return 0;
 }
 
+void lookup_deinit(UDF_INIT *initid)
+{
+#if !defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
+  (void) pthread_mutex_destroy(&LOCK_hostname);
+#endif
+}
+
 char *lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
 	     unsigned long *res_length, char *null_value, char *error)
 {
@@ -696,13 +710,23 @@ char *lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
     length=sizeof(name_buff)-1;
   memcpy(name_buff,args->args[0],length);
   name_buff[length]=0;
-
+#if defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
   if (!(hostent=gethostbyname_r(name_buff,&tmp_hostent,hostname_buff,
 				sizeof(hostname_buff), &tmp_errno)))
   {
     *null_value=1;
     return 0;
   }
+#else
+  VOID(pthread_mutex_lock(&LOCK_hostname));
+  if (!(hostent= gethostbyname((char*) name_buff)))
+  {
+    VOID(pthread_mutex_unlock(&LOCK_hostname));
+    *null_value= 1;
+    return 0;
+  }
+  VOID(pthread_mutex_unlock(&LOCK_hostname));
+#endif
   struct in_addr in;
   memcpy_fixed((char*) &in,(char*) *hostent->h_addr_list, sizeof(in.s_addr));
   *res_length= (ulong) (strmov(result, inet_ntoa(in)) - result);
@@ -731,9 +755,18 @@ my_bool reverse_lookup_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
   }
   initid->max_length=32;
   initid->maybe_null=1;
+#if !defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
+  (void) pthread_mutex_init(&LOCK_hostname,MY_MUTEX_INIT_SLOW);
+#endif
   return 0;
 }
 
+void reverse_lookup_deinit(UDF_INIT *initid) 
+{
+#if !defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
+  (void) pthread_mutex_destroy(&LOCK_hostname);
+#endif
+}
 
 char *reverse_lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
 		     unsigned long *res_length, char *null_value, char *error)
@@ -776,6 +809,7 @@ char *reverse_lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
     return 0;
   }
   struct hostent *hp;
+#if defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
   int tmp_errno;
   if (!(hp=gethostbyaddr_r((char*) &taddr,sizeof(taddr), AF_INET,
 			   &tmp_hostent, name_buff,sizeof(name_buff),
@@ -784,10 +818,19 @@ char *reverse_lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
     *null_value=1;
     return 0;
   }
+#else
+  VOID(pthread_mutex_lock(&LOCK_hostname));
+  if (!(hp= gethostbyaddr((char*) &taddr, sizeof(taddr), AF_INET)))
+  {
+    VOID(pthread_mutex_unlock(&LOCK_hostname));
+    *null_value= 1;
+    return 0;
+  }
+  VOID(pthread_mutex_unlock(&LOCK_hostname));
+#endif
   *res_length=(ulong) (strmov(result,hp->h_name) - result);
   return result;
 }
-#endif // defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
 
 /*
 ** Syntax for the new aggregate commands are: