GitHub - BrunoBasseto/Hermes: Tiny TCP suite for PIC24/PIC32 processors based on CronOS kernel

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Name		Name	Last commit message	Last commit date
Latest commit History 3 Commits
.gitignore		.gitignore
README		README
arp.c		arp.c
arp.h		arp.h
checksum.c		checksum.c
checksum.h		checksum.h
defs.h		defs.h
dhcp.c		dhcp.c
dhcp.h		dhcp.h
dns.c		dns.c
dns.h		dns.h
hermes.c		hermes.c
hermes.h		hermes.h
hermes_config.h		hermes_config.h
icmp.c		icmp.c
icmp.h		icmp.h
ip.c		ip.c
ip.h		ip.h
net.h		net.h
smtp.c		smtp.c
smtp.h		smtp.h
tcp.c		tcp.c
tcp.h		tcp.h
udp.c		udp.c
udp.h		udp.h

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README

Hermes is a tiny TCP stack suite for 16-bit PIC24 and 32-bit PIC32 microprocessors and runs over the Cronos multi-threading executive. It features:
* Small memory requirements
* Customizable protocols selection
* Multi-threaded operation
* Multiple network interfaces allowed (ethernet, PPP, wi-fi)
* Protocols already supported: 
** Link layer: ARP, PPP
** Network layer: ICMP, IP
** Transport layer: TCP, UDP
** Application layer: DHCP, DNSP, SMTP

Examples of use:

#include "cronos.h"
#include "hermes.h"
void send_email(void)
{
    IPV4 server = dns_get_ip("smtp.openmind.net", 0);
	if(!server.d) return;                                    // IP not found
	
	if(!smtp_new(server, 0)) return;                         // start mail session
	if(!smtp_from("bruno@openmind.net")) return;             // sender
	if(!smtp_to("jjpeavey@gmail.com")) return;
	if(!smtp_to("rdmiranda@yahoo.com")) return;
	if(!smtp_data("Hello everybody")) return;                // email body...
	if(!smtp_data("This is Hermes SMTP client")) return;
	if(!smtp_data("Pretty cool, ahn?")) return;
	smtp_send();
}


#include "cronos.h"
#include "hermes.h"
void simple_httpd(void)
{
    PPBUF buf;
    while(os_not_terminated()) {
        // initiates a service at the port 80 and waits for a client--
        tcp_reset(SOCKET_0);
        if(tcp_listen(SOCKET_0, 80)) {
            // client is connected--
            while(os_not_terminated() && tcp_is_open(SOCKET_0)) {
                // read and parse a command--
                buf = tcp_read(SOCKET_0);
                if(buf) {
                    if(compare_string(buf, "GET / HTTP")) {
                    	// HTTP "GET" command - send a dummy message --
                        release_buffer(buf);
                        buf = tcp_new(SOCKET_0);
                        write_string(buf, "HTTP/1.0 200 OK\r\n\r\n");
                        write_string(buf, "<BODY>Hello World!</BODY>");
                        tcp_send(SOCKET_0, buf);
                        release_buffer(buf);
                    } else
                        release_buffer(buf);
                }	
                tcp_close(SOCKET_0);
            }
        }
    }
}