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Merge bitcoin/bitcoin#26261: p2p: cleanup LookupIntern, Lookup and LookupHost

Browse Source 
5c832c3820 p2p, refactor: return `std::optional<CNetAddr>` in `LookupHost` (brunoerg)
34bcdfc6a6 p2p, refactor: return vector/optional<CService> in `Lookup` (brunoerg)
7799eb125b p2p, refactor: return `std::vector<CNetAddr>` in `LookupHost` (brunoerg)
5c1774a563 p2p, refactor: return `std::vector<CNetAddr>` in `LookupIntern` (brunoerg)

Pull request description:

  Continuation of #26078.

  To improve readability instead of returning a bool and passing stuff by reference, this PR changes:

  - `LookupHost` to return `std::vector<CNetAddr>`
  - `LookupHost` to return `std::optional<CNetAddr>`
  - `Lookup` to return `std::vector<CService>`
  - `Lookup` to return `std::optional<CService>`.
  - `LookupIntern` to return `std::vector<CNetAddr>`

  As discussed in #26078, it would be better to avoid using `optional` in some cases, but for specific `Lookup` and `LookupHost` functions it's necessary to use `optional` to verify if they were able to catch some data from their overloaded function.

ACKs for top commit:
  achow101:
    ACK 5c832c3820
  stickies-v:
    re-ACK 5c832c3820 - just addressing two nits, no other changes
  theStack:
    re-ACK 5c832c3820

Tree-SHA512: ea346fdc54463999646269bd600cd4a1590ef958001d2f0fc2be608ca51e1b4365efccca76dd4972b023e12fcc6e67d226608b0df7beb901bdeadd19948df840
This commit is contained in:
Andrew Chow
2023-05-30 11:29:11 -04:00
parent 05ec664632 5c832c3820
commit 71300489af
16 changed files with 171 additions and 225 deletions
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8
src/net_permissions.cpp
View File

@@ -88,18 +88,18 @@ bool NetWhitebindPermissions::TryParse(const std::string& str, NetWhitebindPermi
if (!TryParsePermissionFlags(str, flags, offset, error)) return false;
const std::string strBind = str.substr(offset);
CService addrBind;
if (!Lookup(strBind, addrBind, 0, false)) {
const std::optional<CService> addrBind{Lookup(strBind, 0, false)};
if (!addrBind.has_value()) {
error = ResolveErrMsg("whitebind", strBind);
return false;
}
if (addrBind.GetPort() == 0) {
if (addrBind.value().GetPort() == 0) {
error = strprintf(_("Need to specify a port with -whitebind: '%s'"), strBind);
return false;
}
output.m_flags = flags;
output.m_service = addrBind;
output.m_service = addrBind.value();
error = Untranslated("");
return true;
}