65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
#include <sys/types.h>
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#include <sys/socket.h>
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#include <stdio.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <unistd.h>
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int main(void) {
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char bufor[1024], rBufor[1024], tBufor[1024]; //wiadomosc
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int gniazdo, gniazdo2, rGniazdo, tGniazdo;
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struct sockaddr_in adr, nadawca, rNadawca, tNadawca;
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socklen_t dl = sizeof(struct sockaddr_in);
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gniazdo = socket(PF_INET, SOCK_STREAM, 0);
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adr.sin_family = AF_INET;
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adr.sin_port = htons(44444); //port
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adr.sin_addr.s_addr = INADDR_ANY;
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printf("Slucham na %s:%d\n", inet_ntoa(adr.sin_addr), ntohs(adr.sin_port));
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if (bind(gniazdo, (struct sockaddr*) &adr, sizeof(adr)) < 0) { //bind
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printf("Bind nie powiodl sie.\n");
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return 1;
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}
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if (listen(gniazdo, 10) < 0) { //listen
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printf("Listen nie powiodl sie.\n");
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return 1;
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}
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printf("Czekam na polaczenie ...\n");
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while ((gniazdo2 = accept(gniazdo, (struct sockaddr*) &nadawca, &dl)) > 0) { //odbieranie
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memset(bufor, 0, 1024);
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recv(gniazdo2, bufor, 1024, 0);
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printf("Wiadomosc od %s: %s\n", inet_ntoa(nadawca.sin_addr), bufor);
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if (bufor[0] == 'T'){
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tGniazdo = gniazdo2;
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tNadawca = nadawca;
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if (fork() == 0){ //child wejdzie w while
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while (1){
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memset(tBufor, 0, 1024);
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recv(tGniazdo, tBufor, 1024, 0);
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printf("Wiadomosc od %s: %s\n", inet_ntoa(tNadawca.sin_addr), tBufor);
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}
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}
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} else {
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rGniazdo = gniazdo2;
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rNadawca = nadawca;
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if(fork() == 0){ //child wejdzie w while
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int licznik = 1;
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while(1){
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memset(rBufor, 0, 1024);
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rBufor[1] = licznik + '0';
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printf("Wysylam licznik\n");
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send(rGniazdo, rBufor, 1024, 0);
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licznik += 1;
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sleep(5);
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}
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}
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}
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close(gniazdo2);
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}
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close(gniazdo);
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return 0;
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} |