Advanced Networking Coding

Question 1

Server Bind and Listen

if (___(___, (struct ___*) &___, sizeof(___)) ___)
DieWithSystemMessage(“bind() failed”);

if (___(___, ___) ___)
DieWithSystemMessage(“listen() failed”);

Question 2

Server Socket
___ ___ = ___(argv[1]);

int ___;
if ((___ = ___ (___, ___, ___)) ___)
DieWithSystemMessage(“socket() failed”);

Question 3

Server Struct

struct ___ ___;
memset(&___, 0, sizeof(___));
___.___ = ___;
___.___.___ = ___(___);
___.___ = ___(___);

Question 4

Server Accept

for (;;) {
int ___ = ___(___, (struct ___ *) NULL, NULL);
if (___ < ___)
DieWithSystemMessage(“accept() failed”);

Question 5

Server Recv

while ((___ = ___(___, ___, ___ - ___, ___)) ___) {
___[___] = ‘\0’;
fputs(___, stdout);

if (strstr(\_\_\_, "\r\n") \_\_\_ )
	break;
}
if (\_\_\_ \_\_\_)
	DieWithSystemMessage("recv() failed");

Question 6

Server Send & Close

snprintf(___, sizeof(___), “%s”, ___);
ssize_t ___ = ___(___, ___, strlen(___), 0);
if (___ ___)
DieWithSystemMessage(“send() failed”);

close(___);

Question 7

Client Socket

___ ___ = ___(argv[2]);

int ___ = ___(___, ___, ___);
if (___ ___)
DieWithSystemMessage(“socket() failed”);

Question 8

Client Struct

struct ___ ___;
memset(&___, 0, sizeof(___));
___.___ = ___;

Question 9

Client Recv & Close

while ((___ = ___(___, ___, ___ - ___, ___)) ___) {
___[___] = ‘\0’;
fputs(___, stdout);
}
if (___ ___)
DieWithSystemMessage(“recv() failed”);

		fputc('\n', stdout);

close(\_\_\_);
exit(0);

Question 10

Client rtnVal

int ___ = ___(___, ___, &___.___.___);
if (___ ___)
DieWithUserMessage(“inet_pton() failed”, “invalid address string”);
else if (___ ___)
DieWithSystemMessage(“inet_pton() failed”);
___.___ = ___(___);

Question 11

Client Connect

if (___(___, (struct ___ *) &___, sizeof(___)) ___)
DieWithSystemMessage(“connect() failed”);

Question 12

Client Send

size_t echoStringLen = strlen(echoString);

snprintf(___, sizeof(___), “%s\r\n”, echoString);
ssize_t ___ = ___(___, ___, strlen(___), 0);
if (___ < 0)
DieWithSystemMessage(“send() failed”);

Question 13

Server Accept with Inet_ntop()

for (;;) {
struct ___ ___;
___ ___ = sizeof()
int ___ = accept(___(struct___*),&___,&___)
if(___ < 0)

inet_ntop(\_\_\_,&\_\_\_.\_\_\_,\_\_\_,sizeof(\_\_\_)), ntohs(\_\_\_.\_\_\_) }