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--- src/parser/sax_token_parser.cpp
+++ src/parser/sax_token_parser.cpp
@@ -10,6 +10,7 @@
#include <mdds/sorted_string_map.hpp>
#include <cctype>
+#include <limits>
namespace orcus {
@@ -329,6 +330,28 @@
m_elem.raw_name = elem.name;
}
+static uint8_t readUint8(char const * begin, char const * end, char const ** endptr) {
+ unsigned n = 0;
+ char const * p = begin;
+ for (; p != end; ++p) {
+ char const c = *p;
+ if (c < '0' || c > '9') {
+ break;
+ }
+ n = 10 * n + (c - '0');
+ if (n > std::numeric_limits<uint8_t>::max()) {
+ *endptr = nullptr;
+ return 0;
+ }
+ }
+ if (p == begin) {
+ *endptr = nullptr;
+ return 0;
+ }
+ *endptr = p;
+ return n;
+}
+
void sax_token_handler_wrapper_base::attribute(std::string_view name, std::string_view val)
{
decl_attr_type dat = decl_attr::get().find(name.data(), name.size());
@@ -340,18 +362,18 @@
const char* p = val.data();
const char* p_end = p + val.size();
- char* endptr = nullptr;
- long v = std::strtol(p, &endptr, 10);
+ const char* endptr = nullptr;
+ uint8_t v = readUint8(p, p_end, &endptr);
- if (!endptr || endptr >= p_end || *endptr != '.')
+ if (!endptr || endptr == p_end || *endptr != '.')
break;
m_declaration.version_major = v;
p = endptr + 1;
- v = std::strtol(p, &endptr, 10);
+ v = readUint8(p, p_end, &endptr);
- if (!endptr || endptr > p_end)
+ if (!endptr)
break;
m_declaration.version_minor = v;
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