66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <netinet/in.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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int main(int argc, char **argv)
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{
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if (argc < 2) {
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printf("podaj numer portu jako parametr\n");
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return 1;
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}
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struct sockaddr_in endpoint;
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int sdsocket, addrlen, i, received;
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struct hostent *he;
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char *port = argv[1];
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// char host[100] = "150.254.79.244";
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char host[100] = "127.0.1.1";
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long message = 426083, receivedMessage;
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he = gethostbyname(host);
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endpoint.sin_family = AF_INET;
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endpoint.sin_port = htons(atoi(port));
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endpoint.sin_addr = *(struct in_addr*) he->h_addr;
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addrlen = sizeof(struct sockaddr_in);
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if ((sdsocket = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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printf("socket() %d nie powiodl sie\n", i);
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return 1;
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}
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if (connect(sdsocket,(struct sockaddr*) &endpoint, addrlen) < 0) {
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printf("connect() %d nie powiodl sie\n", i);
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return 0;
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}
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message = htonl(message);
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send(sdsocket, &message, sizeof(message), 0);
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received = 0;
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while (received < sizeof(long))
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{
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received += recv(sdsocket,
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&receivedMessage,
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sizeof(long),
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0);
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}
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receivedMessage = ntohl(receivedMessage);
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receivedMessage += 1;
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receivedMessage = htonl(receivedMessage);
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send(sdsocket, &receivedMessage, sizeof(long), 0);
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return 0;
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}
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