73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
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//
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// main.c
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// presonal poster client
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//
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// Created by Eric on 16-2-17.
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// Copyright (c) 2016年 Bakantu Eric. All rights reserved.
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//
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <string.h>
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#define PROT 8884
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#define N_MAX 256
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int main(int argc, const char * argv[]) {
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int sockfd;
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int len;
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struct sockaddr_in addr;
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int newsockfd;
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char buf[N_MAX];
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int len2;
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char rebuf[N_MAX];
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int i,key;
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char ch;
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printf("Input key: (<= 6)");
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scanf("%d",&key);
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getchar();
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while (1){
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sockfd = socket(AF_INET, SOCK_STREAM, 0);
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addr.sin_family = AF_INET;
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addr.sin_addr.s_addr = htonl(INADDR_ANY);
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addr.sin_port = PROT;
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len = sizeof(addr);
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newsockfd = connect(sockfd, (struct sockaddr *)&addr, len);
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if (newsockfd == -1){
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printf("Fail in connect the Server!");
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return -1;
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}
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printf("SEND: ");
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i = 0;
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while ((ch = getchar()) != '\n'){
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buf[i] = ch;
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i++;
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}
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buf[i] = '\0';
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if (!strcmp(buf, "quit")) break;
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for (i = 0; i < strlen(buf); i++){
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if (buf[i] == ' ') buf[i] = '_';
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buf[i] += key;
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}
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len2 = sizeof(buf);
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send(sockfd, buf, len2, 0);
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usleep(1000);
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recv(sockfd, rebuf, N_MAX, 0);
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rebuf[strlen(rebuf)+1] = '\0';
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printf("Receive message: %s\n",rebuf);
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close(sockfd);
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}
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return 0;
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}
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