Building Server (ASM)

How Socket communicate

For two computers to communicate over network, both nodes needs to specify the mode at which they want to send and receive the data. One of the nodes need to listen, while the other connects. The node that listens is called a server, while that that connects is called the client.

Socket creation Process

 ----------------------------
 |        socket             |
  ----------------------------
              |
              |
 ----------------------------
 |           bind            |
  ----------------------------
              |
              |
 ----------------------------
 |        listen             |
  ----------------------------
              |
              |
  ---------------------------
 |        accept             |
  ----------------------------
              |
              |
 ----------------------------
 |        read/write         |
 -----------------------------

creating socket

int socket (
int domain,
type,
protocol
)

Binding Socket

bind(
sfd,
(struct sockaddr_in *) &my_addr,
sizeof(my_addr);
)

struct sockaddr_in {
sa_family_t sa_family;
in_port_t sin_port
char sa_data[14]
}

Listening

int listen (
int sockfd,
int backlog
)

Accepting

accept (
int sockfd,
(struct sockaddr_in *) &my_addr,
sizeof(my_addr);
)

references: https://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/