std::vector mangles a char*

[kerzack]

char* cFileIO::readStringFromFile()
{
   string line;
   getline(*readFile, line);
   char str[70];
   strcpy(str, line.c_str());
   printf("%s\n", str);
   char* tosaveto = str;
   return tosaveto;
}

for(int x=0; x<map->numCountries; x++)
   {
      char* t = readStringFromFile();
      printf("%s\n", t);
      map->countryNames.push_back(t);
      printf("%s\n", map->countryNames[x]);
      map->countryRects.push_back(readRectFromFile());
   }

When I call push_back(t), the string gets mangled. The first time I printf it it's fine, but the second time it's mangled. Anyone have any ideas?

The rectangle vertices come out printed fine, it's just the char*s that don't.