socket-programming

name	socket-programming
description	Low-level socket programming including BSD sockets, Winsock, and network byte manipulation
sasmp_version	1.3.0
version	2.0.0
bonded_agent	02-networking-specialist
bond_type	SECONDARY_BOND
parameters	{"required":["socket_type"],"optional":["buffer_size","non_blocking"],"validation":{"socket_type":{"type":"string","enum":["tcp","udp","raw"]},"buffer_size":{"type":"integer","min":1024,"max":65536,"default":8192},"non_blocking":{"type":"boolean","default":true}}}
retry_config	{"max_attempts":3,"backoff":"exponential","initial_delay_ms":100,"retryable_errors":["ECONNREFUSED","ETIMEDOUT"]}
observability	{"logging":{"level":"debug","fields":["socket_fd","bytes_transferred"]},"metrics":[{"name":"socket_bytes_sent","type":"counter"},{"name":"socket_bytes_received","type":"counter"}]}

Socket Programming for Games

Master low-level socket programming for custom game networking.

Socket Types

Type	Protocol	Use Case
SOCK_STREAM	TCP	Reliable data
SOCK_DGRAM	UDP	Real-time
SOCK_RAW	Raw IP	Custom protocols

BSD Socket (C)

#include <sys/socket.h>
#include <netinet/in.h>

int create_game_server(int port) {
    int sockfd = socket(AF_INET, SOCK_DGRAM, 0);

    struct sockaddr_in addr = {
        .sin_family = AF_INET,
        .sin_port = htons(port),
        .sin_addr.s_addr = INADDR_ANY
    };

    bind(sockfd, (struct sockaddr*)&addr, sizeof(addr));
    fcntl(sockfd, F_SETFL, O_NONBLOCK);

    return sockfd;
}

Socket Options

// Disable Nagle (reduce latency)
int flag = 1;
setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof(flag));

// Enable address reuse
setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &flag, sizeof(flag));

// Set buffer size
int bufsize = 65536;
setsockopt(sockfd, SOL_SOCKET, SO_RCVBUF, &bufsize, sizeof(bufsize));

Byte Order

// Network byte order
uint16_t port_net = htons(8080);
 ip_net = htonl(ip_host);


 port_host = ntohs(port_net);