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lib: introduce Curl_peer

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`struct Curl_peer` keeps information about a communication endpoint
together. It will replace `conn->host` and `conn->conn_to_host` and
proxyinfo host. It will also become part of `struct ssl_peer`.

It has a reference counter, so an instance can be shared between
connections and filters.

Elminiates `conn->host` and `conn->connect_to_host`, used in the
proxyinfo structures. Passed to DNS resolution and socks filters, etc.

Pass peer to http proxy and socks tunnel filters. Use peer in dns filter
and resolving. Make `Curl_peer` a member in the `struct ssl_peer`.

Add `docs/internals/PEERS.md` for documentation.

Closes #21472
This commit is contained in:
Stefan Eissing 2026-05-05 12:58:22 +02:00 • committed by Daniel Stenberg
parent 9c9a4f3eab
commit bc40e09f63
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67 changed files with 1902 additions and 1295 deletions
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7
lib/smb.c
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@ -500,7 +500,7 @@ static CURLcode smb_connect(struct Curl_easy *data, bool *done)
}
else {
smbc->user = conn->user;
smbc->domain = curlx_strdup(conn->host.name);
smbc->domain = curlx_strdup(conn->origin->hostname);
if(!smbc->domain)
return CURLE_OUT_OF_MEMORY;
}
@ -720,7 +720,8 @@ static CURLcode smb_send_tree_connect(struct Curl_easy *data,
struct smb_tree_connect msg;
struct connectdata *conn = data->conn;
char *p = msg.bytes;
const size_t byte_count = strlen(conn->host.name) + strlen(smbc->share) +
const size_t byte_count = strlen(conn->origin->hostname) +
strlen(smbc->share) +
strlen(SERVICENAME) + 5; /* 2 nulls and 3 backslashes */
if(byte_count > sizeof(msg.bytes))
@ -735,7 +736,7 @@ static CURLcode smb_send_tree_connect(struct Curl_easy *data,
"\\\\%s\\" /* hostname */
"%s%c" /* share */
"%s", /* service */
conn->host.name, smbc->share, 0, SERVICENAME);
conn->origin->hostname, smbc->share, 0, SERVICENAME);
p++; /* count the final null-termination */
DEBUGASSERT(byte_count == (size_t)(p - msg.bytes));
msg.byte_count = smb_swap16((unsigned short)byte_count);