Macintosh-SW
/
lwip-contrib-mac
mirror of https://github.com/ep00ch/lwip-contrib-mac.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Example application of httpserver for netconn/netbuf.

This commit is contained in:
jgrubb 2007-07-13 20:03:25 +00:00
parent daf7d26762
commit f82c5e5d34
2 changed files with 74 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
apps/httpserver/README Normal file
View File

@ -0,0 +1,12 @@
HTTPSERVER
This is a demonstration of how to make the most basic kind
of server using lWIP.
* httpserver-raw.c - uses raw TCP calls (coming soon!)
* httpserver-netconn.c - uses netconn and netbuf API
This code updates the examples in Adam Dunkel's original
lwIP documentation to match changes in the code since that
PDF release.

62
apps/httpserver/httpserver-netconn.c Normal file
View File

@ -0,0 +1,62 @@
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 (conn->err == ERR_OK) {
netbuf_data(inbuf, &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);
}
int http_server() {
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, NULL, 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;
}