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client: connect report actual socket error to user callback rather than EINPROGRESS

https://github.com/warmcat/libwebsockets/pull/2452
This commit is contained in:
Felipe Gasper 2021-10-15 09:46:21 -04:00 committed by Andy Green
parent 6d88669b69
commit 76a5a9e2f2

View file

@ -71,7 +71,7 @@ typedef enum {
} lcccr_t;
static lcccr_t
lws_client_connect_check(struct lws *wsi)
lws_client_connect_check(struct lws *wsi, int *real_errno)
{
#if !defined(LWS_WITH_NO_LOGS)
char t16[16];
@ -103,6 +103,8 @@ lws_client_connect_check(struct lws *wsi)
lwsl_wsi_notice(wsi, "getsockopt fd %d says %s", wsi->desc.sockfd,
lws_errno_describe(e, t16, sizeof(t16)));
*real_errno = e;
return LCCCR_FAILED;
}
@ -133,7 +135,7 @@ lws_client_connect_check(struct lws *wsi)
#endif
lwsl_wsi_notice(wsi, "connect check FAILED: %s",
lws_errno_describe(en, t16, sizeof(t16)));
lws_errno_describe(*real_errno || en, t16, sizeof(t16)));
return LCCCR_FAILED;
}
@ -238,7 +240,15 @@ lws_client_connect_3_connect(struct lws *wsi, const char *ads,
/* no dns results and no ongoing timeout for one */
goto connect_to;
switch (lws_client_connect_check(wsi)) {
/*
* If the connection failed, the OS-level errno may be
* something like EINPROGRESS rather than the actual problem
* that prevented a connection. This value will represent the
* real problem that we should report to the caller.
*/
int real_errno = 0;
switch (lws_client_connect_check(wsi, &real_errno)) {
case LCCCR_CONNECTED:
/*
* Oh, it has happened...
@ -247,9 +257,11 @@ lws_client_connect_3_connect(struct lws *wsi, const char *ads,
case LCCCR_CONTINUE:
return NULL;
default:
en = LWS_ERRNO;
if (!real_errno)
real_errno = LWS_ERRNO;
lws_snprintf(dcce, sizeof(dcce), "conn fail: %s",
lws_errno_describe(en, t16, sizeof(t16)));
lws_errno_describe(real_errno, t16, sizeof(t16)));
cce = dcce;
lwsl_wsi_debug(wsi, "%s", dcce);
lws_metrics_caliper_report(wsi->cal_conn, METRES_NOGO);