75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
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#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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#include <sys/time.h>
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#define BUFFER_SIZE 30000
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#define ATTEMPTS 100
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char buf[BUFFER_SIZE];
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/*
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argv[1] - nazwa hosta
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argv[2] - numer portu
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*/
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int main(int argc, char **argv)
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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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struct timeval time_b, time_e;
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if (argc<3) {
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printf("podaj nazwe hosta i numer portu jako parametry (provide hostname and port number in command line)\n");
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return 1;
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}
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he = gethostbyname(argv[1]);
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if (he == NULL) {
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printf("Nieznany host (unknown kost): %s\n",argv[1]);
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return 0;
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}
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endpoint.sin_family = AF_INET;
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endpoint.sin_port = htons(atoi(argv[2]));
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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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gettimeofday(&time_b, NULL);
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for (i=0; i<ATTEMPTS; i++) {
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if ((sdsocket = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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printf("socket() %d nie powiodl sie (failed)\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 (failed)\n", i);
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return 0;
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}
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send(sdsocket, buf, BUFFER_SIZE, 0);
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received = 0;
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while (received < BUFFER_SIZE)
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{
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received += recv(sdsocket,
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buf+received,
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BUFFER_SIZE-received,
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0);
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}
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close(sdsocket);
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}
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gettimeofday(&time_e, NULL);
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printf("czas: %.6f s\n",
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(((double) (time_e.tv_sec - time_b.tv_sec) * 1000000) +
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((double) (time_e.tv_usec - time_b.tv_usec)))
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/ (1000000.0 * ATTEMPTS));
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return 0;
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}
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