Update sock_check to sock_has_pending

src/async.c

@@ -58,7 +58,7 @@ static int async_exec(evt_listen_t *evt, short r_events) {
     int ret, e = errno;
     if (r_events & evt->events) {
         // specified event(s) occurred
-        if (evt->socket && !sock_check(evt->socket)) {
+        if (evt->socket && !sock_has_pending(evt->socket)) {
             evt->err_cb(evt->err_arg);
             ret = 0;
         } else {

src/lib/proxy.c

@@ -226,7 +226,7 @@ proxy_ctx_t *proxy_init(http_req *req, http_res *res, http_status_ctx *ctx, host
     proxy_ctx_t *proxy = proxy_get_by_conf(conf);
     proxy->in_use = 1;
 
-    if (proxy->initialized && sock_check(&proxy->proxy) == 0)
+    if (proxy->initialized && sock_has_pending(&proxy->proxy) == 0)
         goto proxy;
 
     retry:

src/lib/sock.c

@@ -151,8 +151,8 @@ int sock_close(sock *s) {
     return 0;
 }
 
-int sock_check(sock *s) {
+int sock_has_pending(sock *s) {
-    char buf;
+    char buf[1];
     int e = errno;
     long ret = sock_recv(s, &buf, 1, MSG_PEEK | MSG_DONTWAIT);
     errno = e;

src/lib/sock.h

@@ -46,7 +46,7 @@ long sock_splice_chunked(sock *dst, sock *src, void *buf, unsigned long buf_len)
 
 int sock_close(sock *s);
 
-int sock_check(sock *s);
+int sock_has_pending(sock *s);
 
 int sock_poll(sock *sockets[], sock *ready[], sock *error[], int n_sock, int *n_ready, int *n_error, short events, int timeout_ms);