/socket

Simple Linux socket wrapper

Primary LanguageC

SOCKET

Simple INET/UNIX Socket API

API

Create server
  • Create an INET server if port is valid. Otherwise, create an UNIX server with sockfile.
  • queue_length is the length of connection waitting queue.
  • Return server fd for success, negative value for failure.
	int sock_server(int port, const char *sockfile, int queue_length);

Accept a client and create a session.
  • You can set addr=NULL, addrlen=NULL to ignore client info.
  • Return sessionfd for success, negative value for failure
	int sock_accept(int serverfd, struct sockaddr *addr, socklen_t *addrlen);

 Create a client connected to a server
  • Create an INET client If host and port are valid. Otherwise, create an UNIX client. > * Return client fd for success, negative value for failure.
	int sock_client(const char *host, int port, const char *sockfile);

Close a server/client/session

	void sock_close(int fd);

Send message
  • Return message length sent for success, negative value for failure.
	ssize_t sock_send(int sockfd, const void *buf, size_t len);

Receive message
  • Return message length received for success, negative value for failure.
	ssize_t sock_recv(int sockfd, void *buf, size_t len);

Example

A Simple Chatroom Demo

chatroom.c

Usage

Start server
Default port is 6666, use option `-p` to change it.

$ ./chatroom -s [-p PORT]
Start Client
Default server ip is 127.0.0.1, use option `-i` to change it , domain name like `localhost` is also supported.
Default port is 6666, use option `-p` to change it.

$ ./chatroom -c [-i IP] [-p PORT]

Client commands

Some client commands is supported when sending message.
COMMAND DESCRIPTION
:quit Quit
:q
:info Get client info
:i
:renmae [name] Rename client
:r [name]
:users Get all users info
:u
:help Get help message
:h
:private [id|name] [msg] Send private message
:p [id|name] [msg]
[msg] Send public message
:file [id|name] [file] Send private file (< 1K)
:f [id|name] [file]