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mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-08-31 06:25:31 +00:00

Unify DoH URI making throughout the codebase

This commit adds new function isc_nm_http_makeuri() which is supposed
to unify DoH URI construction throughout the codebase.

It handles IPv6 addresses, hostnames, and IPv6 addresses given as
hostnames properly, and replaces similar ad-hoc code in the codebase.
This commit is contained in:
Artem Boldariev
2021-08-12 10:14:30 +03:00
parent 2d36920d6a
commit 530133c10f
4 changed files with 198 additions and 52 deletions

View File

@@ -392,35 +392,6 @@ connect_cb(isc_nmhandle_t *handle, isc_result_t eresult, void *cbarg) {
isc_nm_send(handle, &message, send_cb, NULL);
}
#if HAVE_LIBNGHTTP2
static void
sockaddr_to_url(isc_sockaddr_t *sa, const bool https, char *outbuf,
size_t outbuf_len, const char *append) {
uint16_t sa_port;
char saddr[INET6_ADDRSTRLEN] = { 0 };
int sa_family;
if (sa == NULL || outbuf == NULL || outbuf_len == 0) {
return;
}
sa_family = ((struct sockaddr *)&sa->type.sa)->sa_family;
sa_port = ntohs(sa_family == AF_INET ? sa->type.sin.sin_port
: sa->type.sin6.sin6_port);
inet_ntop(sa_family,
sa_family == AF_INET
? (struct sockaddr *)&sa->type.sin.sin_addr
: (struct sockaddr *)&sa->type.sin6.sin6_addr,
saddr, sizeof(saddr));
snprintf(outbuf, outbuf_len, "%s://%s%s%s:%u%s",
https ? "https" : "http", sa_family == AF_INET ? "" : "[",
saddr, sa_family == AF_INET ? "" : "]", sa_port,
append ? append : "");
}
#endif
static void
run(void) {
switch (protocol) {
@@ -449,8 +420,8 @@ run(void) {
bool is_post = (protocol == HTTPS_POST ||
protocol == HTTP_POST);
char req_url[256];
sockaddr_to_url(&sockaddr_remote, is_https, req_url,
sizeof(req_url), DEFAULT_DOH_PATH);
isc_nm_http_makeuri(is_https, &sockaddr_remote, NULL, 0,
DEFAULT_DOH_PATH, req_url, sizeof(req_url));
if (is_https) {
isc_tlsctx_createclient(&tls_ctx);
}