#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <signal.h>
#include <unistd.h>
#include <stdlib.h>
#include <assert.h>
#include <stdio.h>
#include <string.h>
static
bool
stop =
false
;
static
void
handle_term(
int
sig)
{
stop =
true
;
}
int
main(
int
argc,
char
*argv[])
{
signal(SIGTERM, handle_term);
if
(argc <= 3)
{
printf(
"usage: %s ip_address port_number backlog\n"
, basename(argv[0]));
return
1;
}
const
char
*ip = argv[1];
int
port = atoi(argv[2]);
int
backlog = atoi(argv[3]);
int
sock = socket(PF_INET, SOCK_STREAM, 0);
assert(sock >= 0);
struct
sockaddr_in address;
bzero(&address,
sizeof
(address));
address.sin_family = AF_INET;
inet_pton(AF_INET, ip, &address.sin_addr);
address.sin_port = htons(port);
int
ret = bind(sock, (
struct
sockaddr*)&address,
sizeof
(address));
assert(ret != -1);
ret = listen(sock, backlog);
assert(ret != -1);
while
(!stop)
{
sleep(1);
}
close(sock);
return
0;
}