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#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
#include <stdbool.h>
int serversock(int PORT, char* addr, int backlog) {
int opt = 1;
int sock, new_sock;
struct sockaddr_in address;
int addrlen = sizeof(address);
if((sock = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
perror("socket failed");
exit(EXIT_FAILURE);
}
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt)) < 0 ) {
perror("setsockopt");
exit(EXIT_FAILURE);
}
address.sin_family = AF_INET;
if (sequals(addr, "auto")) {
address.sin_addr.s_addr = INADDR_ANY;
} else {
inet_aton(addr, &address.sin_addr.s_addr);
}
address.sin_port = htons(PORT);
if (bind(sock, (struct sockaddr*)&address, sizeof(address)) < 0) {
perror("bind");
exit(EXIT_FAILURE);
}
if (listen(sock, backlog) < 0) {
perror("listen");
exit(EXIT_FAILURE);
}
if ((new_sock = accept(sock, (struct sockaddr*)&address, (socklen_t*)&addrlen)) < 0) {
perror("accept");
exit(EXIT_FAILURE);
}
return new_sock;
}
int clientsock(int PORT, char* server_ip) {
struct sockaddr_in serv_addr;
int sock = socket(PF_INET, SOCK_STREAM, 0);
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(PORT);
inet_pton(AF_INET, server_ip, &serv_addr.sin_addr);
int status = connect(sock, (struct sockaddr*)&serv_addr, sizeof(serv_addr));
return sock;
}
char* recvsock(int soc) {
char* buf = malloc(1024);
int valread = read(soc, buf, 1024);
return buf;
}
void sendsock(char* msg, int soc) {
send(soc, msg, strlen(msg), 0);
}
void closesock(int soc, bool server) {
close(soc);
if (server) {
shutdown(soc, SHUT_RDWR);
}
}
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