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Fail loudly on big-endian systems

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AJ Martinez 2023-03-27 23:12:27 -07:00 • committed by James R
parent 119f23bd7b
commit 6510628586
1 changed files with 8 additions and 0 deletions
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8
src/d_clisrv.c
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@ -247,6 +247,10 @@ static int IsExternalAddress (const void *p)
// Generate a message for an authenticating client to sign, with some guarantees about who we are.
void GenerateChallenge(uint8_t *buf)
{
#ifndef SRB2_LITTLE_ENDIAN
#error "FIXME: 64-bit timestamp field is not supported on Big Endian"
#endif
UINT64 now = time(NULL);
csprng(buf, sizeof(&buf)); // Random noise as a baseline, but...
memcpy(buf, &now, sizeof(now)); // Timestamp limits the reuse window.
@ -273,6 +277,10 @@ void GenerateChallenge(uint8_t *buf)
// Don't sign anything that wasn't generated just for us!
shouldsign_t ShouldSignChallenge(uint8_t *message)
{
#ifndef SRB2_LITTLE_ENDIAN
#error "FIXME: 64-bit timestamp field is not supported on Big Endian"
#endif
UINT64 then, now;
UINT32 claimedIP, realIP;