hop-2012/relay.c

75 lines
1.7 KiB
C

/* Copyright (C) 2010 Tony Garnock-Jones. All rights reserved. */
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <fcntl.h>
#include <sys/wait.h>
#include <time.h>
#include <sys/time.h>
typedef unsigned char u_char;
#include <event.h>
#include "cmsg_private.h"
#include "harness.h"
#include "relay.h"
#include "net.h"
struct boot_args {
struct sockaddr_in peername;
int fd;
};
static void relay_main(struct boot_args *args) {
IOHandle *h = new_iohandle(args->fd);
{
char name[256];
endpoint_name(&args->peername, (cmsg_bytes_t) { .bytes = name, .len = sizeof(name) });
info("Accepted connection from %s on fd %d\n", name, args->fd);
}
free(args);
iohandle_settimeout(h, 3, 0);
while (1) {
cmsg_bytes_t buf = iohandle_readwait(h, 1);
if (buf.len == 0) {
switch (h->error_kind) {
case EVBUFFER_TIMEOUT:
info("Timeout\n");
iohandle_clear_error(h);
iohandle_write(h, cmsg_cstring_bytes("Timed out\n"));
break;
default:
info("Error! 0x%04X\n", h->error_kind);
break;
}
break;
} else {
info("Read %d: %.*s\n", buf.len, buf.len, buf.bytes);
iohandle_drain(h, buf.len);
}
iohandle_write(h, cmsg_cstring_bytes("OK, proceed\n"));
}
ICHECK(iohandle_flush(h), "iohandle_flush");
ICHECK(close(h->fd), "close");
delete_iohandle(h);
}
void start_relay(struct sockaddr_in const *peername, int fd) {
struct boot_args *args = malloc(sizeof(*args));
args->peername = *peername;
args->fd = fd;
spawn((process_main_t) relay_main, args);
}