Created
May 31, 2012 13:13
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Client
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#include <stdio.h> | |
#include <sys/socket.h> | |
#include <arpa/inet.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <unistd.h> | |
#include <netinet/in.h> | |
#define BUFFSIZE 32 | |
void Die(char *mess) { perror(mess); exit(1); } | |
int main (int argc, char *argv[]) | |
{ | |
int sock; | |
struct sockaddr_in echoserver; | |
char buffer[BUFFSIZE]; | |
unsigned int echolen; | |
int received = 0; | |
if (argc != 4) | |
{ | |
fprintf(stderr, "USAGE: client <server_ip> <word> <port>\n"); | |
exit(1); | |
} | |
if ((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) | |
{ | |
Die("Failed to create socket"); | |
} | |
printf("Sock is : %i\n", sock); | |
memset (&echoserver, 0, sizeof(echoserver)); | |
echoserver.sin_family = AF_INET; | |
echoserver.sin_addr.s_addr = inet_addr(argv[1]); | |
echoserver.sin_port = htons(atoi(argv[3])); | |
if (connect(sock, (struct sockaddr *) &echoserver, sizeof(echoserver)) < 0) | |
{ | |
Die("Failed to connect with server"); | |
} | |
echolen = strlen(argv[2]); | |
if (send(sock, argv[2], echolen, 0) != echolen) | |
{ | |
Die("Mismatch in number of sent bytes"); | |
} | |
fprintf(stdout, "Received: "); | |
while (received < echolen) | |
{ | |
int bytes = 0; | |
if ((bytes = recv(sock, buffer, BUFFSIZE-1, 0)) < 1) | |
{ | |
Die("Failed to receive bytes from server"); | |
} | |
received += bytes; | |
buffer[bytes] = '\0'; | |
fprintf(stdout, buffer); | |
} | |
fprintf(stdout, "\n"); | |
close(sock); | |
exit(0); | |
} |
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