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switch to math/rand/v2 in most places

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this allows removing some ugly instantiations of an rng based on the current
time.

Intn is now IntN for our concurrency-safe prng wrapper to match the randv2 api.

v2 exists since go1.22, which we already require.
This commit is contained in:
Mechiel Lukkien
2024-11-29 13:45:19 +01:00
parent 96a3ecd52c
commit de435fceba
9 changed files with 24 additions and 30 deletions
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4
dmarc/dmarc.go
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@ -15,7 +15,7 @@ import (
"errors"
"fmt"
"log/slog"
mathrand "math/rand"
mathrand2 "math/rand/v2"
"time"
"github.com/mjl-/mox/dkim"
@ -257,7 +257,7 @@ func Verify(ctx context.Context, elog *slog.Logger, resolver dns.Resolver, msgFr
// Record can request sampling of messages to apply policy.
// See ../rfc/7489:1432
useResult = !applyRandomPercentage || record.Percentage == 100 || mathrand.Intn(100) < record.Percentage
useResult = !applyRandomPercentage || record.Percentage == 100 || mathrand2.IntN(100) < record.Percentage
// We treat "quarantine" and "reject" the same. Thus, we also don't "downgrade"
// from reject to quarantine if this message was sampled out.