.__ __ .__
___________ ____ |__|/ |______ _______|__|__ __ _____
/ ___/\__ \ / \| \ __\__ \\_ __ \ | | \/ \
\___ \ / __ \| | \ || | / __ \| | \/ | | / Y Y \
/____ >(____ /___| /__||__| (____ /__| |__|____/|__|_| /
\/ \/ \/ \/ \/
Booting _
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
static int
create_and_bind (char *port)
{
struct addrinfo hints;
struct addrinfo *result, *rp;
int s, sfd;
memset (&hints, 0, sizeof (struct addrinfo));
hints.ai_family = AF_UNSPEC; /* Return IPv4 and IPv6 choices */
hints.ai_socktype = SOCK_STREAM; /* We want a TCP socket */
hints.ai_flags = AI_PASSIVE; /* All interfaces */
s = getaddrinfo (NULL, port, &hints, &result);
if (s != 0)
{
fprintf (stderr, "getaddrinfo: %s
", gai_strerror (s));
return -1;
}
for (rp = result; rp != NULL; rp = rp->ai_next)
{
sfd = socket (rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (sfd == -1)
continue;
s = bind (sfd, rp->ai_addr, rp->ai_addrlen);
if (s == 0)
{
/* We managed to bind successfully! */
break;
}
close (sfd);
}
if (rp == NULL)
{
fprintf (stderr, "Could not bind
");
return -1;
}
freeaddrinfo (result);
return sfd;
}
static int
make_socket_non_blocking (int sfd)
{
int flags, s;
flags = fcntl (sfd, F_GETFL, 0);
if (flags == -1)
{
perror ("fcntl");
return -1;
}
flags |= O_NONBLOCK;
s = fcntl (sfd, F_SETFL, flags);
if (s == -1)
{
perror ("fcntl");
return -1;
}
return 0;
}
#define MAXEVENTS 64
static const char reply[] =
"HTTP/1.0 200 OK
"
"Content-type: text/html
"
"Connection: close
"
"Content-Length: 82
"
"
"
"
"
"
"
"
"
"
"
"
"test
"
"
"
""
;
int
main (int argc, char *argv[])
{
int sfd, s;
int efd;
struct epoll_event event;
struct epoll_event *events;
if (argc != 2)
{
fprintf (stderr, "Usage: %s [port]
", argv[0]);
exit (EXIT_FAILURE);
}
sfd = create_and_bind (argv[1]);
if (sfd == -1)
abort ();
s = make_socket_non_blocking (sfd);
if (s == -1)
abort ();
s = listen (sfd, SOMAXCONN);
if (s == -1)
{
perror ("listen");
abort ();
}
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