IP: Fix formatting issue with IPSpace iteration and BWF.

Author: SolidWallOfCode

code/include/swoc/IPRange.h

@@ -1801,7 +1801,7 @@ inline IPRange::IPRange(string_view const &text) {
 inline IPRange::IPRange(IPRangeView const& view) {
   if (AF_INET == view._family) {
     *this = *view._raw._4;
-  } else if (AF_INET6 == _family) {
+  } else if (AF_INET6 == view._family) {
     *this = *view._raw._6;
   }
 }

code/include/swoc/bwf_ip.h

@@ -54,6 +54,8 @@ BufferWriter &bwformat(BufferWriter &w, bwf::Spec const &spec, IP6Range const &r
 
 BufferWriter &bwformat(BufferWriter &w, bwf::Spec const &spec, IPRange const &range);
 
+BufferWriter &bwformat(BufferWriter &w, bwf::Spec const &spec, IPRangeView const &range);
+
 BufferWriter &bwformat(BufferWriter &w, bwf::Spec const &spec, IPNet const &net);
 
 BufferWriter &bwformat(BufferWriter &w, bwf::Spec const &spec, IP4Net const &net);
@@ -108,4 +110,5 @@ operator<<(ostream &s, swoc::IPRange const &Range) {
   swoc::LocalBufferWriter<swoc::IP_STREAM_SIZE> w;
   return s << bwformat(w, swoc::bwf::Spec::DEFAULT, Range);
 }
+
 } // namespace std

code/src/bw_ip_format.cc

@@ -345,6 +345,12 @@ bwformat(BufferWriter &w, Spec const &spec, IPRange const &range) {
                              range.is(AF_INET6) ? bwformat(w, spec, range.ip6()) : w.write("*-*"_tv);
 }
 
+BufferWriter &
+bwformat(BufferWriter &w, Spec const &spec, IPRangeView const &rv) {
+  return rv.is(AF_INET) ? bwformat(w, spec, rv.ip4()) :
+         rv.is(AF_INET6) ? bwformat(w, spec, rv.ip6()) : w.write("*-*"_tv);
+}
+
 BufferWriter &
 bwformat(BufferWriter &w, Spec const &spec, IP4Net const &net) {
   bwformat(w, spec, net.min());

example/CMakeLists.txt

@@ -30,7 +30,7 @@ if (CMAKE_COMPILER_IS_GNUCXX)
     target_compile_options(ex_flat_space PRIVATE -Wall -Wextra -Werror)
 endif()
 
-add_executable(ex_diskstats ex_diskstats.cc ../image/include/swoc/IntrusiveDList.h)
+add_executable(ex_diskstats ex_diskstats.cc ../code/include/swoc/IntrusiveDList.h)
 target_link_libraries(ex_diskstats PUBLIC libswoc-static)
 if (CMAKE_COMPILER_IS_GNUCXX)
     target_compile_options(ex_diskstats PRIVATE -Wall -Wextra -Werror)

unit_tests/test_ip.cc

@@ -875,6 +875,7 @@ TEST_CASE("IP ranges and networks", "[libswoc][ip][net][range]") {
     CHECK(*r5_net == swoc::IPNet{a, m});
     ++r5_net;
   }
+
 }
 
 TEST_CASE("IP Space Int", "[libswoc][ip][ipspace]") {
@@ -1083,6 +1084,31 @@ TEST_CASE("IP Space Int", "[libswoc][ip][ipspace]") {
     auto [ r, p ] = *space.find(IPAddr{"2001:4997:58:400::1E"});
     REQUIRE(r.empty());
   }
+
+  space.clear();
+  // Test a mix
+  unsigned idx = 0;
+  std::array<TextView, 6> mix_r { "1.1.1.1-1.1.1.111", "2.2.2.2-2.2.2.222", "3.3.3.3-3.255.255.255",
+                   "1:2:3:4:5:6:7:8-1:2:3:4:5:6:7:ffff",
+                   "11:2:3:4:5:6:7:8-11:2:3:4:5:6:7:ffff",
+                   "111:2:3:4:5:6:7:8-111:2:3:4:5:6:7:ffff"
+       };
+  for ( auto && r : mix_r) {
+    space.mark(IPRange(r), idx);
+    ++idx;
+  }
+
+  idx = 0;
+  std::string s;
+  for (auto [r,p] : space) {
+    REQUIRE(!r.empty());
+    REQUIRE(p == idx);
+    swoc::LocalBufferWriter<64> dbg;
+    bwformat(dbg, swoc::bwf::Spec::DEFAULT, r);
+    bwprint(s, "{}", r);
+    REQUIRE(s == mix_r[idx]);
+    ++idx;
+  }
 }
 
 TEST_CASE("IPSpace bitset", "[libswoc][ipspace][bitset]") {