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Support for falling back through the list of addresses returned from

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a DNS lookup, whether they're IPv4, v6 or a mixture of both.

[originally from svn r5119]
[this svn revision also touched putty-wishlist]
This commit is contained in:
Simon Tatham
2005-01-16 14:29:34 +00:00
parent 0f754aac82
commit f70efc5cc6
10 changed files with 648 additions and 352 deletions
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24
raw.c
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@ -29,6 +29,22 @@ static void c_write(Raw raw, char *buf, int len)
sk_set_frozen(raw->s, backlog > RAW_MAX_BACKLOG);
}
static void raw_log(Plug plug, int type, SockAddr addr, int port,
const char *error_msg, int error_code)
{
Raw raw = (Raw) plug;
char addrbuf[256], *msg;
sk_getaddr(addr, addrbuf, lenof(addrbuf));
if (type == 0)
msg = dupprintf("Connecting to %s port %d", addrbuf, port);
else
msg = dupprintf("Failed to connect to %s: %s", addrbuf, error_msg);
logevent(raw->frontend, msg);
}
static int raw_closing(Plug plug, const char *error_msg, int error_code,
int calling_back)
{
@ -74,6 +90,7 @@ static const char *raw_init(void *frontend_handle, void **backend_handle,
int keepalive)
{
static const struct plug_function_table fn_table = {
raw_log,
raw_closing,
raw_receive,
raw_sent
@ -113,13 +130,6 @@ static const char *raw_init(void *frontend_handle, void **backend_handle,
/*
* Open socket.
*/
{
char *buf, addrbuf[100];
sk_getaddr(addr, addrbuf, 100);
buf = dupprintf("Connecting to %s port %d", addrbuf, port);
logevent(raw->frontend, buf);
sfree(buf);
}
raw->s = new_connection(addr, *realhost, port, 0, 1, nodelay, keepalive,
(Plug) raw, cfg);
if ((err = sk_socket_error(raw->s)) != NULL)