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sysdeps/managarm: Convert sys_geteuid to bragi

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Signed-off-by: Dennisbonke <admin@dennisbonke.com>
This commit is contained in:
Dennisbonke 2020-06-18 21:53:50 +02:00
parent c5aee2d6bc
commit 828f0fc9a6
1 changed files with 13 additions and 25 deletions
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38
sysdeps/managarm/generic/fork-exec.cpp
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@ -408,36 +408,24 @@ int sys_setuid(uid_t uid) {
uid_t sys_geteuid() {
SignalGuard sguard;
HelAction actions[3];
globalQueue.trim();
managarm::posix::CntRequest<MemoryAllocator> req(getSysdepsAllocator());
req.set_request_type(managarm::posix::CntReqType::GET_EUID);
managarm::posix::GetEuidRequest<MemoryAllocator> req(getSysdepsAllocator());
frg::string<MemoryAllocator> ser(getSysdepsAllocator());
req.SerializeToString(&ser);
actions[0].type = kHelActionOffer;
actions[0].flags = kHelItemAncillary;
actions[1].type = kHelActionSendFromBuffer;
actions[1].flags = kHelItemChain;
actions[1].buffer = ser.data();
actions[1].length = ser.size();
actions[2].type = kHelActionRecvInline;
actions[2].flags = 0;
HEL_CHECK(helSubmitAsync(getPosixLane(), actions, 3,
globalQueue.getQueue(), 0, 0));
auto [offer, send_head, recv_resp] =
exchangeMsgsSync(
getPosixLane(),
helix_ng::offer(
helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
helix_ng::recvInline()
)
);
auto element = globalQueue.dequeueSingle();
auto offer = parseSimple(element);
auto send_req = parseSimple(element);
auto recv_resp = parseInline(element);
HEL_CHECK(offer->error);
HEL_CHECK(send_req->error);
HEL_CHECK(recv_resp->error);
HEL_CHECK(offer.error());
HEL_CHECK(send_head.error());
HEL_CHECK(recv_resp.error());
managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
resp.ParseFromArray(recv_resp->data, recv_resp->length);
resp.ParseFromArray(recv_resp.data(), recv_resp.length());
__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
return resp.uid();
}