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added function tcp_listen_with_backlog_and_err() to get the error reason when listening fails (bug #49861)

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sg
2016-12-31 15:36:31 +01:00
parent 1884c7e83f
commit 98fc82fa71
4 changed files with 53 additions and 13 deletions
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src/include/lwip/tcp.h
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@@ -387,6 +387,7 @@ err_t tcp_bind (struct tcp_pcb *pcb, const ip_addr_t *ipaddr,
err_t tcp_connect (struct tcp_pcb *pcb, const ip_addr_t *ipaddr,
u16_t port, tcp_connected_fn connected);
struct tcp_pcb * tcp_listen_with_backlog_and_err(struct tcp_pcb *pcb, u8_t backlog, err_t *err);
struct tcp_pcb * tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog);
/** @ingroup tcp_raw */
#define tcp_listen(pcb) tcp_listen_with_backlog(pcb, TCP_DEFAULT_LISTEN_BACKLOG)