3party/pugixml
0
0
Fork 0
mirror of https://github.com/zeux/pugixml.git synced 2024-12-28 06:10:55 +08:00
Code Issues Projects Releases Wiki Activity

Fix integer overflow detection with leading zeros

Browse Source 
Since they don't contribute to the resulting value just skip them before
parsing. This matches the behavior of strtol/strtoll and results in more
intuitive behavior.
This commit is contained in:
Arseny Kapoulkine 2015-10-17 10:33:50 -07:00
parent e8e54ea5de
commit 0e09571f21
2 changed files with 40 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/pugixml.cpp
View File

@ -4350,6 +4350,10 @@ PUGI__NS_BEGIN
{
s += 2;
// since overflow detection relies on length of the sequence skip leading zeros
while (*s == '0')
s++;
const char_t* start = s;
for (;;)
@ -4370,6 +4374,10 @@ PUGI__NS_BEGIN
}
else
{
// since overflow detection relies on length of the sequence skip leading zeros
while (*s == '0')
s++;
const char_t* start = s;
for (;;)

32
tests/test_dom_traverse.cpp
View File

@ -1188,6 +1188,22 @@ TEST_XML(dom_as_uint_hex_overflow, "<node attr1='-0x1' attr2='0x100000000' attr3
CHECK(node.attribute(STR("attr3")).as_uint() == 4294967295);
}
TEST_XML(dom_as_int_many_digits, "<node attr1='0000000000000000000000000000000000000000000000001' />")
{
xml_node node = doc.child(STR("node"));
CHECK(node.attribute(STR("attr1")).as_int() == 1);
CHECK(node.attribute(STR("attr1")).as_uint() == 1);
}
TEST_XML(dom_as_int_hex_many_digits, "<node attr1='0x0000000000000000000000000000000000000000000000001' />")
{
xml_node node = doc.child(STR("node"));
CHECK(node.attribute(STR("attr1")).as_int() == 1);
CHECK(node.attribute(STR("attr1")).as_uint() == 1);
}
#ifdef PUGIXML_HAS_LONG_LONG
TEST_XML(dom_as_llong_overflow, "<node attr1='-9223372036854775809' attr2='9223372036854775808' attr3='-18446744073709551616' />")
{
@ -1224,6 +1240,22 @@ TEST_XML(dom_as_ullong_hex_overflow, "<node attr1='-0x1' attr2='0x10000000000000
CHECK(node.attribute(STR("attr2")).as_ullong() == 18446744073709551615ull);
CHECK(node.attribute(STR("attr3")).as_ullong() == 18446744073709551615ull);
}
TEST_XML(dom_as_llong_many_digits, "<node attr1='0000000000000000000000000000000000000000000000001' />")
{
xml_node node = doc.child(STR("node"));
CHECK(node.attribute(STR("attr1")).as_llong() == 1);
CHECK(node.attribute(STR("attr1")).as_ullong() == 1);
}
TEST_XML(dom_as_llong_hex_many_digits, "<node attr1='0x0000000000000000000000000000000000000000000000001' />")
{
xml_node node = doc.child(STR("node"));
CHECK(node.attribute(STR("attr1")).as_llong() == 1);
CHECK(node.attribute(STR("attr1")).as_ullong() == 1);
}
#endif
TEST_XML(dom_as_int_plus, "<node attr1='+1' attr2='+0xa' />")