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Make more private.

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This commit is contained in:
Jeroen van Rijn
2023-03-03 13:00:43 +01:00
parent 96ac405952
commit d5ea492ef5
16 changed files with 266 additions and 916 deletions
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core/net/dns.odin
+24 -12
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@@ -113,6 +113,7 @@ resolve :: proc(hostname_and_maybe_port: string) -> (ep4, ep6: Endpoint, err: Ne
}
unreachable()
}
resolve_ip4 :: proc(hostname_and_maybe_port: string) -> (ep4: Endpoint, err: Network_Error) {
target := parse_hostname_or_endpoint(hostname_and_maybe_port) or_return
switch t in target {
@@ -139,6 +140,7 @@ resolve_ip4 :: proc(hostname_and_maybe_port: string) -> (ep4: Endpoint, err: Net
}
unreachable()
}
resolve_ip6 :: proc(hostname_and_maybe_port: string) -> (ep6: Endpoint, err: Network_Error) {
target := parse_hostname_or_endpoint(hostname_and_maybe_port) or_return
switch t in target {
@@ -166,13 +168,18 @@ resolve_ip6 :: proc(hostname_and_maybe_port: string) -> (ep6: Endpoint, err: Net
unreachable()
}
// `get_dns_records` uses OS-specific methods to query DNS records.
when ODIN_OS == .Windows {
get_dns_records_from_os :: get_dns_records_windows
} else when ODIN_OS == .Linux || ODIN_OS == .Darwin || ODIN_OS == .OpenBSD {
get_dns_records_from_os :: get_dns_records_unix
} else {
#panic("get_dns_records_from_os not implemented on this OS")
/*
Performs a recursive DNS query for records of a particular type for the hostname using the OS.
NOTE: This procedure instructs the DNS resolver to recursively perform CNAME requests on our behalf,
meaning that DNS queries for a hostname will resolve through CNAME records until an
IP address is reached.
IMPORTANT: This procedure allocates memory for each record returned; deleting just the returned slice is not enough!
See `destroy_records`.
*/
get_dns_records_from_os :: proc(hostname: string, type: DNS_Record_Type, allocator := context.allocator) -> (records: []DNS_Record, err: DNS_Error) {
return _get_dns_records_os(hostname, type, allocator)
}
/*
@@ -182,6 +189,9 @@ when ODIN_OS == .Windows {
NOTE: This procedure instructs the DNS resolver to recursively perform CNAME requests on our behalf,
meaning that DNS queries for a hostname will resolve through CNAME records until an
IP address is reached.
IMPORTANT: This procedure allocates memory for each record returned; deleting just the returned slice is not enough!
See `destroy_records`.
*/
get_dns_records_from_nameservers :: proc(hostname: string, type: DNS_Record_Type, name_servers: []Endpoint, host_overrides: []DNS_Record, allocator := context.allocator) -> (records: []DNS_Record, err: DNS_Error) {
context.allocator = allocator
@@ -771,14 +781,16 @@ parse_record :: proc(packet: []u8, cur_off: ^int, filter: DNS_Record_Type = nil)
*/
parse_response :: proc(response: []u8, filter: DNS_Record_Type = nil, allocator := context.allocator) -> (records: []DNS_Record, ok: bool) {
header_size_bytes :: 12
if len(response) < header_size_bytes {
context.allocator = allocator
HEADER_SIZE_BYTES :: 12
if len(response) < HEADER_SIZE_BYTES {
return
}
_records := make([dynamic]DNS_Record, 0)
dns_hdr_chunks := mem.slice_data_cast([]u16be, response[:header_size_bytes])
dns_hdr_chunks := mem.slice_data_cast([]u16be, response[:HEADER_SIZE_BYTES])
hdr := unpack_dns_header(dns_hdr_chunks[0], dns_hdr_chunks[1])
if !hdr.is_response {
return
@@ -792,7 +804,7 @@ parse_response :: proc(response: []u8, filter: DNS_Record_Type = nil, allocator
authority_count := int(dns_hdr_chunks[4])
additional_count := int(dns_hdr_chunks[5])
cur_idx := header_size_bytes
cur_idx := HEADER_SIZE_BYTES
for _ in 0..<question_count {
if cur_idx == len(response) {
@@ -846,4 +858,4 @@ parse_response :: proc(response: []u8, filter: DNS_Record_Type = nil, allocator
}
return _records[:], true
}
}