Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

pad octet array to the left to avoid weirdness with values >= 2^23 #241

Open
wants to merge 1 commit into
base: master
Choose a base branch
from

Conversation

bhammond-internap
Copy link

Noticed there was some weirdness with snmpwalk when I tried to set Counter64 to values greater than or equal to 8388608 (aka 8mb aka 2^23):

.1.3.6.1.2.1.31.1.1.1.6.1 = Counter64: 18374967954639945728
.1.3.6.1.2.1.31.1.1.1.6.2 = Counter64: 8388607

This seems to be caused by the uint64_t.prototype.toOctets method not padding the array:

toOctets: hi:0, lo: 8388608 -> 128,0,0
toOctets: hi:0, lo: 8388607 -> 127,255,255

Once I padded the array by prepending 0's, things look better:

.1.3.6.1.2.1.31.1.1.1.6.1 = Counter64: 8388608
.1.3.6.1.2.1.31.1.1.1.6.2 = Counter64: 8388607

The change is very small: while (a.length<8) a.unshift(0);

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant