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authorBjörn-Egil Dahlberg <[email protected]>2013-02-18 17:22:37 +0100
committerBjörn-Egil Dahlberg <[email protected]>2013-02-19 10:00:06 +0100
commit568397e6ad87270c581b7787fce44985e131eb7e (patch)
tree743e57758873d49473ae51c275ec13646f6f291c /erts
parent0b3617b7118e7b6e40c73d730734904ffa8b68cc (diff)
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erts: Fix atom hash for latin1 characters
Non ASCII latin1 characters were hashed as utf8 which breaks compatability.
Diffstat (limited to 'erts')
-rw-r--r--erts/emulator/beam/atom.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/erts/emulator/beam/atom.c b/erts/emulator/beam/atom.c
index b69f979397..84d2d5e3ed 100644
--- a/erts/emulator/beam/atom.c
+++ b/erts/emulator/beam/atom.c
@@ -132,9 +132,17 @@ atom_hash(Atom* obj)
byte* p = obj->name;
int len = obj->len;
HashValue h = 0, g;
+ byte v;
while(len--) {
- h = (h << 4) + *p++;
+ v = *p++;
+ /* latin1 clutch for r16 */
+ if ((v & 0xFE) == 0xC2 && (*p & 0xC0) == 0x80) {
+ v = (v << 6) | (*p & 0x3F);
+ p++; len--;
+ }
+ /* normal hashpjw follows for v */
+ h = (h << 4) + v;
if ((g = h & 0xf0000000)) {
h ^= (g >> 24);
h ^= g;