handle header lines with name but no value after the ':'

src/pEpMIME.cc

@@ -129,27 +129,30 @@ message* parse_message2(const char* begin, const char* const end)
     NameValue nv;
     for(int i=0; i<headersize; ++i)
     {
-        sv line = lines[i];
+        sv line = lines.at(i);
         const int lineType = header_line_type(line);
         LOG << "Line #" << i << ": \"" << line << "\". type=" << lineType << ". \n";
         switch(lineType)
         {
             case -2: // line is bogus. But be robust: just skip that line and hope for the best...
                 //throw std::runtime_error("Cannot handle line \"" + std::string(line) + "\"");  return nullptr;  // TODO: C'mon, don't give up, yet! :-)
-                continue;
+                break;
             case -1: nv.value += std::string(line);
-                     break;
+                break;
             default: 
             {
                 if(!nv.name.empty())
                 {
                     headers.push_back(nv);
                 }
-                const int firstBody = lineType + 1; // 1st index _after_ the ':'
-                const char firstBodyChar = line.at(firstBody);  // if SPACE or TAB char: chop this char, too. but only the 1st!
                 nv.name  = std::string( line.substr(0, lineType) );
                 ascii_tolower(nv.name);
-                nv.value = std::string( line.substr( firstBody + ( (firstBodyChar==' '|| firstBodyChar=='\t') ? 1 : 0) ));
+                const int firstBody = lineType + 1; // 1st index _after_ the ':'
+                if(firstBody < line.size()) // there is something after the ':'
+                {
+                    const char firstBodyChar = line.at(firstBody);  // if SPACE or TAB char: chop this char, too. but only the 1st!
+                    nv.value = std::string( line.substr( firstBody + ( (firstBodyChar==' '|| firstBodyChar=='\t') ? 1 : 0) ));
+                }
             }
         }
     }