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fix(launcher): harden LA11 gate evidence

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Erik 2026-08-15 01:45:15 +02:00
parent accd01a008
commit 9f9c116792
7 changed files with 514 additions and 89 deletions
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9
tools/new-campaign-la-update-fixture.ps1
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@ -208,10 +208,11 @@ function Set-DeterministicZipHostPlatform([string]$Path) {
(Get-LittleEndianUInt32 $bytes ([int]$cursor)) -ne 0x02014b50) {
throw "Generated ZIP central-directory entry is invalid: $Path"
}
# ZipArchive intentionally stamps the creating host (FAT on Windows,
# Unix on Linux) in the upper byte of "version made by". Normalize it
# to FAT; permissions are already explicit in ExternalAttributes.
$bytes[[int]$cursor + 5] = 0
# ZipArchive stamps the creating host (FAT on Windows, Unix on Linux)
# in the upper byte of "version made by". Normalize to Unix so native
# extraction honors the explicit regular-file type and 0755/0644 mode
# bits already stored in ExternalAttributes.
$bytes[[int]$cursor + 5] = 3
$nameLength = Get-LittleEndianUInt16 $bytes ([int]$cursor + 28)
$extraLength = Get-LittleEndianUInt16 $bytes ([int]$cursor + 30)
$commentLength = Get-LittleEndianUInt16 $bytes ([int]$cursor + 32)