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nss: implement data_pending method #10225

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nss: implement data_pending method #10225

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15 changes: 14 additions & 1 deletion lib/vtls/nss.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2404,6 +2404,19 @@ static ssize_t nss_send(struct Curl_cfilter *cf,
return rc; /* number of bytes */
}

static bool
nss_data_pending(struct Curl_cfilter *cf, const struct Curl_easy *data)
{
struct ssl_connect_data *connssl = cf->ctx;
PRFileDesc *fd = connssl->backend->handle->lower;
char buf;

(void) data;

/* Returns true in case of error to force reading. */
return PR_Recv(fd, (void *) &buf, 1, PR_MSG_PEEK, PR_INTERVAL_NO_WAIT) != 0;
}

static ssize_t nss_recv(struct Curl_cfilter *cf,
struct Curl_easy *data, /* transfer */
char *buf, /* store read data here */
Expand Down Expand Up @@ -2554,7 +2567,7 @@ const struct Curl_ssl Curl_ssl_nss = {
nss_check_cxn, /* check_cxn */
/* NSS has no shutdown function provided and thus always fail */
Curl_none_shutdown, /* shutdown */
Curl_none_data_pending, /* data_pending */
nss_data_pending, /* data_pending */
nss_random, /* random */
nss_cert_status_request, /* cert_status_request */
nss_connect, /* connect */
Expand Down