[2500] extracted createName() from soa.cc so it can be commonly used.

src/lib/dns/Makefile.am

@@ -23,6 +23,7 @@ EXTRA_DIST += rdata/generic/cname_5.cc
 EXTRA_DIST += rdata/generic/cname_5.h
 EXTRA_DIST += rdata/generic/detail/char_string.cc
 EXTRA_DIST += rdata/generic/detail/char_string.h
+EXTRA_DIST += rdata/generic/detail/lexer_util.h
 EXTRA_DIST += rdata/generic/detail/nsec_bitmap.cc
 EXTRA_DIST += rdata/generic/detail/nsec_bitmap.h
 EXTRA_DIST += rdata/generic/detail/nsec3param_common.cc

src/lib/dns/rdata/generic/detail/lexer_util.h

@@ -0,0 +1,70 @@
+// Copyright (C) 2013  Internet Systems Consortium, Inc. ("ISC")
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+#ifndef DNS_RDATA_LEXER_UTIL_H
+#define DNS_RDATA_LEXER_UTIL_H 1
+
+#include <dns/name.h>
+#include <dns/master_lexer.h>
+
+/// \file lexer_util.h
+/// \brief Utilities for extracting RDATA fields from lexer.
+///
+/// This file intends to define convenient small routines that can be
+/// commonly used in the RDATA implementation to build RDATA fields from
+/// a \c MasterLexer.
+
+namespace isc {
+namespace dns {
+namespace rdata {
+namespace generic {
+namespace detail {
+
+/// \brief Construct a Name object using a master lexer and optional origin.
+///
+/// This is a convenient shortcut of commonly used code pattern that would
+/// be used to build RDATA that contain a domain name field.
+///
+/// Note that this function throws an exception against invalid input.
+/// The (direct or indirect) caller's responsibility needs to expect and
+/// handle exceptions appropriately.
+///
+/// \throw MasterLexer::LexerError The next token from lexer is not string.
+/// \throw Other Exceptions from the \c Name class constructor if the next
+/// string token from the lexer does not represent a valid name.
+///
+/// \param lexer A \c MasterLexer object.  Its next token is expected to be
+/// a string that represent a domain name.
+/// \param origin If non NULL, specifies the origin of the name to be
+/// constructed.
+///
+/// \return A new Name object that corresponds to the next string token of
+/// the \c lexer.
+inline Name
+createNameFromLexer(MasterLexer& lexer, const Name* origin) {
+    const MasterToken::StringRegion& str_region =
+        lexer.getNextToken(MasterToken::STRING).getStringRegion();
+    return (Name(str_region.beg, str_region.len, origin));
+}
+
+} // namespace detail
+} // namespace generic
+} // namespace rdata
+} // namespace dns
+} // namespace isc
+#endif  // DNS_RDATA_LEXER_UTIL_H
+
+// Local Variables:
+// mode: c++
+// End:

src/lib/dns/rdata/generic/soa_6.cc

@@ -25,6 +25,8 @@
 #include <dns/rdata.h>
 #include <dns/rdataclass.h>
 
+#include <dns/rdata/generic/detail/lexer_util.h>
+
 #include <boost/static_assert.hpp>
 #include <boost/lexical_cast.hpp>
 
@@ -34,6 +36,7 @@
 using namespace std;
 using boost::lexical_cast;
 using namespace isc::util;
+using isc::dns::rdata::generic::detail::createNameFromLexer;
 
 // BEGIN_ISC_NAMESPACE
 // BEGIN_RDATA_NAMESPACE
@@ -47,13 +50,6 @@ SOA::SOA(InputBuffer& buffer, size_t) :
 }
 
 namespace {
-Name
-createName(MasterLexer& lexer, const Name* origin) {
-    const MasterToken::StringRegion& str_region =
-        lexer.getNextToken(MasterToken::STRING).getStringRegion();
-    return (Name(str_region.beg, str_region.len, origin));
-}
-
 void
 fillParameters(MasterLexer& lexer, uint8_t numdata[20]) {
     // Copy serial, refresh, retry, expire, minimum.  We accept the extended
@@ -84,6 +80,7 @@ fillParameters(MasterLexer& lexer, uint8_t numdata[20]) {
 /// \throw Others Exception from the Name and RRTTL constructors.
 /// \throw InvalidRdataText Other general syntax errors.
 SOA::SOA(const std::string& soastr) :
+    // Fill in dummy name and replace them soon below.
     mname_(Name::ROOT_NAME()), rname_(Name::ROOT_NAME())
 {
     try {
@@ -91,8 +88,8 @@ SOA::SOA(const std::string& soastr) :
         MasterLexer lexer;
         lexer.pushSource(ss);
 
-        mname_ = createName(lexer, NULL);
-        rname_ = createName(lexer, NULL);
+        mname_ = createNameFromLexer(lexer, NULL);
+        rname_ = createNameFromLexer(lexer, NULL);
         fillParameters(lexer, numdata_);
 
         if (lexer.getNextToken().getType() != MasterToken::END_OF_FILE) {
@@ -126,7 +123,8 @@ SOA::SOA(const std::string& soastr) :
 /// they are non absolute.
 SOA::SOA(MasterLexer& lexer, const Name* origin,
          MasterLoader::Options, MasterLoaderCallbacks&) :
-    mname_(createName(lexer, origin)), rname_(createName(lexer, origin))
+    mname_(createNameFromLexer(lexer, origin)),
+    rname_(createNameFromLexer(lexer, origin))
 {
     fillParameters(lexer, numdata_);
 }

src/lib/dns/tests/rdata_soa_unittest.cc

@@ -106,6 +106,13 @@ TEST_F(Rdata_SOA_Test, createFromText) {
     checkFromBadTexxt<EmptyLabel, EmptyLabel>(
         ". bad..example. 2010012601 1H 5M 1000H 20M");
 
+    // Names shouldn't be quoted. (Note: on completion of #2534, the resulting
+    // exception will be different).
+    checkFromBadTexxt<MissingNameOrigin, MissingNameOrigin>(
+        "\".\" . 0 0 0 0 0");
+    checkFromBadTexxt<MissingNameOrigin, MissingNameOrigin>(
+        ". \".\" 0 0 0 0 0");
+
     // Missing MAME or RNAME: for the string version, the serial would be
     // tried as RNAME and result in "not absolute".  For the lexer version,
     // it reaches the end-of-line, missing min TTL.