From 7ba967a36cead5cb79c6ef7911873cf5eae2775d Mon Sep 17 00:00:00 2001
From: tastytea <tastytea@tastytea.de>
Date: Thu, 9 Jan 2020 15:54:52 +0100
Subject: [PATCH] Fix answer_type::get_header().

The previous implementation returned a reference to an out-of-scope string.
---
 include/answer.hpp | 4 +++-
 src/answer.cpp     | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/answer.hpp b/include/answer.hpp
index 56a8324..b0cafdf 100644
--- a/include/answer.hpp
+++ b/include/answer.hpp
@@ -103,7 +103,9 @@ struct answer_type
     /*!
      *  @brief  Returns the value of a header field.
      *
-     *  Case insensitive, only ASCII.
+     *  Is only valid for as long as the answer_type is in scope.
+     *
+     *  @param  field Case insensitive, only ASCII.
      *
      *  @since  0.1.0
      */
diff --git a/src/answer.cpp b/src/answer.cpp
index 8cc9236..0db9176 100644
--- a/src/answer.cpp
+++ b/src/answer.cpp
@@ -54,7 +54,7 @@ string_view answer_type::get_header(const string_view field) const
         auto pos{static_cast<size_t>(it - headers.begin())};
         pos = headers.find(':', pos) + 2;
         const auto endpos{headers.find('\n', pos)};
-        return headers.substr(pos, endpos - pos);
+        return string_view(&headers[pos], endpos - pos);
     }
 
     return {};