diff options
Diffstat (limited to 'boost/beast/http/detail/basic_parser.hpp')
| -rw-r--r-- | boost/beast/http/detail/basic_parser.hpp | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/boost/beast/http/detail/basic_parser.hpp b/boost/beast/http/detail/basic_parser.hpp index 0936862add..818277bea5 100644 --- a/boost/beast/http/detail/basic_parser.hpp +++ b/boost/beast/http/detail/basic_parser.hpp @@ -19,6 +19,7 @@ #include <boost/version.hpp> #include <algorithm> #include <cstddef> +#include <limits> #include <utility> namespace boost { @@ -26,9 +27,8 @@ namespace beast { namespace http { namespace detail { -class basic_parser_base +struct basic_parser_base { -protected: // limit on the size of the obs-fold buffer // // https://stackoverflow.com/questions/686217/maximum-on-http-header-values @@ -299,25 +299,30 @@ protected: return p; } - template<class Iter, class Unsigned> + template<class Iter, class T> static - bool - parse_dec(Iter it, Iter last, Unsigned& v) + typename std::enable_if< + std::numeric_limits<T>::is_integer && + ! std::numeric_limits<T>::is_signed, bool>::type + parse_dec(Iter it, Iter last, T& v) { - if(! is_digit(*it)) + if(it == last) return false; - v = *it - '0'; - for(;;) + T tmp = 0; + do { - if(! is_digit(*++it)) - break; - auto const d = *it - '0'; - if(v > ((std::numeric_limits< - Unsigned>::max)() - 10) / 10) + if((! is_digit(*it)) || + tmp > (std::numeric_limits<T>::max)() / 10) return false; - v = 10 * v + d; + tmp *= 10; + T const d = *it - '0'; + if((std::numeric_limits<T>::max)() - tmp < d) + return false; + tmp += d; } - return it == last; + while(++it != last); + v = tmp; + return true; } template<class Iter, class Unsigned> |