62 lines
1.1 KiB
C
62 lines
1.1 KiB
C
/*
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* this example is derived from the netio example of the contrib-1.4.0
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*
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* see http://download.savannah.gnu.org/releases/lwip/
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*/
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#include <metalsvm/stddef.h>
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#include <lwip/opt.h>
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#if defined(CONFIG_LWIP)
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#include <lwip/opt.h>
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#include <lwip/tcp.h>
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/* See http://www.nwlab.net/art/netio/netio.html to get the netio tool */
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#if LWIP_TCP
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static err_t netio_recv(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err)
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{
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LWIP_UNUSED_ARG(arg);
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if (err == ERR_OK && p != NULL) {
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tcp_recved(pcb, p->tot_len);
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pbuf_free(p);
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} else {
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pbuf_free(p);
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}
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if (err == ERR_OK && p == NULL) {
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tcp_arg(pcb, NULL);
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tcp_sent(pcb, NULL);
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tcp_recv(pcb, NULL);
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tcp_close(pcb);
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}
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return ERR_OK;
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}
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static err_t netio_accept(void *arg, struct tcp_pcb *pcb, err_t err)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_UNUSED_ARG(err);
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tcp_arg(pcb, NULL);
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tcp_sent(pcb, NULL);
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tcp_recv(pcb, netio_recv);
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return ERR_OK;
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}
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void netio_init(void)
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{
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struct tcp_pcb *pcb;
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pcb = tcp_new();
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tcp_bind(pcb, IP_ADDR_ANY, 18767);
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pcb = tcp_listen(pcb);
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tcp_accept(pcb, netio_accept);
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}
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#endif /* LWIP_TCP */
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#endif
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