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Saleh Ahmed Khan
comp2023-2018-project-1
Commits
55dee9f4
Commit
55dee9f4
authored
7 years ago
by
Saleh Ahmed Khan
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Client/server temporary code
parent
2494a636
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Changes
3
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3 changed files
client.c
+38
-0
38 additions, 0 deletions
client.c
makefile
+7
-2
7 additions, 2 deletions
makefile
server.c
+13
-4
13 additions, 4 deletions
server.c
with
58 additions
and
6 deletions
client.c
+
38
−
0
View file @
55dee9f4
#include
<arpa/inet.h>
#include
<sys/socket.h>
#include
<netinet/in.h>
#include
<stdio.h>
#include
<string.h>
#include
<stdlib.h>
#include
<unistd.h>
#include
<netdb.h>
void
main
(
int
argc
,
char
*
argv
[])
{
int
sockfd
=
0
/*listenfd*/
,
connfd
=
0
,
n
=
0
;
char
recvBuff
[
1025
];
struct
sockaddr_in
serv_addr
;
struct
hostent
*
server
;
sockfd
=
socket
(
AF_INET
,
SOCK_STREAM
,
0
);
//create socket
server
=
gethostbyname
(
argv
[
1
]);
memset
(
&
serv_addr
,
'0'
,
sizeof
(
serv_addr
));
//initialise server address
memset
(
recvBuff
,
'0'
,
sizeof
(
recvBuff
));
//initialise RECEIVE buffer
bcopy
((
char
*
)
server
->
h_addr
,(
char
*
)
&
serv_addr
.
sin_addr
.
s_addr
,
server
->
h_length
);
serv_addr
.
sin_family
=
AF_INET
;
//Type of address – internet IP
serv_addr
.
sin_port
=
htons
(
atoi
(
argv
[
2
]));
// port no
if
(
connect
(
sockfd
,
(
struct
sockaddr
*
)
&
serv_addr
,
sizeof
(
serv_addr
))
<
0
)
{
printf
(
"Error connecting to server
\n
"
);
}
else
{
printf
(
"%s server
\n
"
,
(
char
*
)
&
serv_addr
);
}
while
((
n
=
read
(
connfd
,
recvBuff
,
sizeof
(
recvBuff
)
-
1
))
>
0
)
{
printf
(
"%s
\n\n
"
,
recvBuff
);
}
}
This diff is collapsed.
Click to expand it.
makefile
+
7
−
2
View file @
55dee9f4
server
:
server.c
server
:
server.c
gcc
-o
server server.c
gcc
-o
server server.c
client
:
client.c
gcc
-o
client client.c
clean
:
clean
:
rm
server
rm
server
rm
client
\ No newline at end of file
This diff is collapsed.
Click to expand it.
server.c
+
13
−
4
View file @
55dee9f4
...
@@ -3,25 +3,34 @@
...
@@ -3,25 +3,34 @@
#include
<netinet/in.h>
#include
<netinet/in.h>
#include
<stdio.h>
#include
<stdio.h>
#include
<string.h>
#include
<string.h>
#include
<stdlib.h>
#include
<unistd.h>
#include
<unistd.h>
void
main
()
{
void
main
(
int
argc
,
char
*
argv
[]
)
{
int
listenfd
=
0
,
connfd
=
0
;
int
listenfd
=
0
,
connfd
=
0
;
char
sendBuff
[
1025
];
char
sendBuff
[
1025
];
struct
sockaddr_in
serv_addr
;
struct
sockaddr_in
serv_addr
;
listenfd
=
socket
(
AF_INET
,
SOCK_STREAM
,
0
);
//create socket
listenfd
=
socket
(
AF_INET
,
SOCK_STREAM
,
0
);
//create socket
if
(
listenfd
<
0
)
{
printf
(
"Error creating socket
\n
"
);
}
memset
(
&
serv_addr
,
'0'
,
sizeof
(
serv_addr
));
//initialise server address
memset
(
&
serv_addr
,
'0'
,
sizeof
(
serv_addr
));
//initialise server address
memset
(
sendBuff
,
'0'
,
sizeof
(
sendBuff
));
//initialise send buffer
memset
(
sendBuff
,
'0'
,
sizeof
(
sendBuff
));
//initialise send buffer
serv_addr
.
sin_family
=
AF_INET
;
//Type of address – internet IP
serv_addr
.
sin_family
=
AF_INET
;
//Type of address – internet IP
serv_addr
.
sin_addr
.
s_addr
=
htonl
(
INADDR_ANY
);
//Listen on ANY IP Addr
serv_addr
.
sin_addr
.
s_addr
=
htonl
(
INADDR_ANY
);
//Listen on ANY IP Addr
serv_addr
.
sin_port
=
htons
(
5000
);
//Listen on port 5000
// serv_addr.sin_port = htons(5000); //Listen on port 5000
serv_addr
.
sin_port
=
htons
(
atoi
(
argv
[
1
]));
bind
(
listenfd
,
(
struct
sockaddr
*
)
&
serv_addr
,
sizeof
(
serv_addr
));
if
(
bind
(
listenfd
,
(
struct
sockaddr
*
)
&
serv_addr
,
sizeof
(
serv_addr
))
<
0
)
{
printf
(
"Error binding
\n
"
);
}
listen
(
listenfd
,
10
);
// maximum number of client connections to queue
listen
(
listenfd
,
10
);
// maximum number of client connections to queue
connfd
=
accept
(
listenfd
,
(
struct
sockaddr
*
)
NULL
,
NULL
);
connfd
=
accept
(
listenfd
,
(
struct
sockaddr
*
)
NULL
,
NULL
);
if
(
connfd
<
0
)
{
printf
(
"Error accepting
\n
"
);
}
snprintf
(
sendBuff
,
sizeof
(
sendBuff
),
"Hello World!"
);
snprintf
(
sendBuff
,
sizeof
(
sendBuff
),
"Hello World!"
);
write
(
connfd
,
sendBuff
,
strlen
(
sendBuff
));
write
(
connfd
,
sendBuff
,
strlen
(
sendBuff
));
close
(
connfd
);
close
(
connfd
);
...
...
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