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socket-client.cpp
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socket-client.cpp
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#include <arpa/inet.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
#define PORT 5000
int main(int argc, char const* argv[])
{
int sock = 0, valread, client_fd;
struct sockaddr_in serv_addr;
const char* hello = "Hello from client";
char buffer[1024] = { 0 };
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
printf("\n Socket creation error \n");
return -1;
}
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(PORT);
// Convert IPv4 and IPv6 addresses from text to binary
// form
if (inet_pton(AF_INET, "127.0.0.1", &serv_addr.sin_addr)
<= 0) {
printf(
"\nInvalid address/ Address not supported \n");
return -1;
}
if ((client_fd
= connect(sock, (struct sockaddr*)&serv_addr,
sizeof(serv_addr)))
< 0) {
printf("\nConnection Failed \n");
return -1;
}
send(sock, hello, strlen(hello), 0);
printf("Hello message sent\n");
valread = read(sock, buffer, 1024);
printf("%s\n", buffer);
// closing the connected socket
close(client_fd);
return 0;
}