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client.c
61 lines (48 loc) · 1.38 KB
/
client.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#define MAX_MSG_SIZE 1024
int main(int argc, char *argv[])
{
if (argc != 3)
{
fprintf(stderr, "Usage: %s <server_address> <port>\n", argv[0]);
exit(EXIT_FAILURE);
}
char *server_address = argv[1];
int port = atoi(argv[2]);
int sock = 0;
struct sockaddr_in serv_addr;
char buffer[MAX_MSG_SIZE] = {0};
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
perror("socket creation error");
return -1;
}
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(port);
if (inet_pton(AF_INET, server_address, &serv_addr.sin_addr) <= 0)
{
perror("invalid address / address not supported");
return -1;
}
if (connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0)
{
perror("connection failed");
return -1;
}
while (1)
{
printf("Enter message to send to server: ");
fgets(buffer, MAX_MSG_SIZE, stdin);
buffer[strcspn(buffer, "\n")] = 0; // remove newline from fgets
send(sock, buffer, strlen(buffer), 0);
printf("Message sent to server\n");
int valread = read(sock, buffer, MAX_MSG_SIZE);
printf("Server response: %s\n", buffer);
memset(buffer, 0, MAX_MSG_SIZE);
}
return 0;
}