Re: Re: [lwip-users] is it possible to have ppp without an os?

#include "lwip/opt.h"

#include "lwip/arch.h"

#include "lwip/api.h"

extern struct ip_addr cliaddr;

#if LWIP_NETCONN

const static char http_html_hdr[] = "HTTP/1.1 200 OK\r\nContent-type: text/html\r\n\r\n";

const static char http_index_html[] = "<html><head><title>Congrats!</title></head><body><h1>Welcome to our lwIP HTTP server!</h1><p>This is a small test page.</body></html>";

void http_server_serve(struct netconn *conn) {

struct netbuf *inbuf;

char *buf;

u16_t buflen;

/* Read the data from the port, blocking if nothing yet there.

We assume the request (the part we care about) is in one netbuf */

inbuf = netconn_recv(conn);

if (netconn_err(conn) == ERR_OK) {

netbuf_data(inbuf, (void *)&buf, &buflen);

/* Is this an HTTP GET command? (only check the first 5 chars, since

there are other formats for GET, and we're keeping it very simple )*/

if (buflen >= 5 &&

buf[0]=='G' &&

buf[1]=='E' &&

buf[2]=='T' &&

buf[3]==' ' &&

buf[4]=='/' ) {

/* Send the HTML header

* subtract 1 from the size, since we dont send the \0 in the string

* NETCONN_NOCOPY: our data is const static, so no need to copy it

netconn_write(conn, http_html_hdr, sizeof(http_html_hdr)-1, NETCONN_NOCOPY);

/* Send our HTML page */

netconn_write(conn, http_index_html, sizeof(http_index_html)-1, NETCONN_NOCOPY);

}

/* Close the connection (server closes in HTTP) */

netconn_close(conn);

/* Delete the buffer (netconn_recv gives us ownership,

so we have to make sure to deallocate the buffer) */

netbuf_delete(inbuf);

}

void http_server (void *arg)

//int http_server (void)

{

struct netconn *conn, *newconn;

/* Create a new TCP connection handle */

conn = netconn_new(NETCONN_TCP);

LWIP_ERROR("http_server: invalid conn", (conn != NULL), return -1;);

/* Bind to port 80 (HTTP) with default IP address */

netconn_bind(conn, &cliaddr, 80);

/* Put the connection into LISTEN state */

netconn_listen(conn);

while(1) {

newconn = netconn_accept(conn);

http_server_serve(newconn);

netconn_delete(newconn);

}

// return 0;

}

void http_init (void)

{

sys_thread_new("http_thread", http_server, NULL, LWIP_STK_SIZE, HTTP_THREAD_PRIO);

}

#endif /* LWIP_NETCONN*/

From:	hnclcj
Subject:	Re: Re: [lwip-users] is it possible to have ppp without an os?
Date:	Wed, 23 Dec 2009 09:35:58 +0800