112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
/*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*/
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#include <arpa/inet.h>
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#include <linux/if_packet.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/ether.h>
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#include <sys/sendfile.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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//#include <sys/fcntl.h>
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#define ETH_P_IP 0x0800 /* Internet Protocol packet */
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#define ETH_ALEN 6 /* from <net/ethernet.h> */
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#define ETH_P_ALL 0x0003
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#define MY_DEST_MAC0 0xba
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#define MY_DEST_MAC1 0xf6
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#define MY_DEST_MAC2 0xb1
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#define MY_DEST_MAC3 0x71
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#define MY_DEST_MAC4 0x09
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#define MY_DEST_MAC5 0x64
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#define DEFAULT_IF "wlan0"
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#define BUF_SIZ 8192
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int main(int argc, char *argv[])
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{
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int sockfd, listenfd;
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socklen_t clilen;
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struct ifreq if_idx;
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struct ifreq if_mac;
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int tx_len = 0;
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char sendbuf[BUF_SIZ];
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// struct ether_header *eh = (struct ether_header *) sendbuf;
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// struct iphdr *iph = (struct iphdr *) (sendbuf + sizeof(struct ether_header));
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// struct sockaddr_ll socket_address;
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// char ifName[IFNAMSIZ];
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int i, j, ret, sendsize=1458, packet_num, offset = 0, port = 32000;
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int fd; /* file descriptor for file to send */
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struct timeval t_start,t_end;
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struct sockaddr_in servaddr,cliaddr;
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//printf("init");
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if (argc > 1)
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packet_num = atoi(argv[1]);
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else
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packet_num = 166666*sendsize;
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if (argc > 2)
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port = atoi(argv[2]);
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sockfd = socket(AF_INET, SOCK_DGRAM, 0);
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//printf("sockfd");
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bzero(&servaddr,sizeof(servaddr));
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servaddr.sin_family = AF_INET;
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servaddr.sin_addr.s_addr=inet_addr("192.168.1.15");
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servaddr.sin_port=htons(port);
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//printf("servaddr");
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// bind(sockfd, (struct sockaddr *)&servaddr,sizeof(servaddr));
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fd = open("/data/local/tmp/bigfile_w", O_WRONLY | O_CREAT | O_TRUNC);
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if (fd == -1) {
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fprintf(stderr, "unable to open the file.\n");
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exit(1);
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}
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gettimeofday(&t_start, NULL);
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//printf("gettime");
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// if (bind(sockfd, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0)
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// {
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// fprintf(stderr, "unable to connect the server.\n");
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// exit(1);
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// }
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// printf("bind");
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sendto(sockfd, "0\n",strlen("0\n"),0, (struct sockaddr *)&servaddr, sizeof(servaddr));
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while (offset < packet_num)
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{
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// clilen= sizeof(cliaddr);
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ret = recvfrom(sockfd, sendbuf, sendsize, 0, NULL, NULL);
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// printf("%d\t%d\n", ret, errno);
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if (ret <= 0)
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{
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printf("recv fail\n");
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usleep(100);
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continue;
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}
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if (sendbuf[50] != '0') continue;
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write(fd, sendbuf, ret);
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offset += ret;
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// printf("%d\n", offset);
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}
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// close(sockfd);
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gettimeofday(&t_end, NULL);
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printf("%lf\n", (t_end.tv_sec-t_start.tv_sec)*1000.0+(t_end.tv_usec-t_start.tv_usec)/1000.0);
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close(fd);
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return 0;
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}
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