64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
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//
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// main.c
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// personal poster
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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 <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 8096
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int main(int argc, const char * argv[]) {
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char string_send[255] = "Success";
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char buf[256];
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int s_fd, c_fd;
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int s_len, c_len;
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struct sockaddr_in s_addr;
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struct sockaddr_in c_addr;
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if ((s_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
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{
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printf("Socket failed");
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return -1;
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}
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s_addr.sin_family = AF_INET;
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s_addr.sin_addr.s_addr = htonl(INADDR_ANY);
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s_addr.sin_port = PROT;
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s_len = sizeof(s_addr);
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if (bind(s_fd, (struct sockaddr *)&s_addr, s_len) == -1) { printf("Bind failed!"); return -1;}
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listen(s_fd, 10);
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int key;
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pid_t pid;
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printf("Input key: (<= 6)");
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scanf("%d",&key);
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while(1){
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c_len = sizeof(c_addr);
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c_fd = accept(s_fd, (struct sockaddr *)&c_addr, (socklen_t*__restrict)&c_len);
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printf("#+# %s Login\n",inet_ntoa(c_addr.sin_addr));
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pid=fork();
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if(pid==-1)
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{
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printf("Fork failed");
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}
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if (pid == 0){
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recv(c_fd, buf, 256, 0);
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buf[strlen(buf)+1] = '\0';
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printf("#!#Receive message: %s From %s\n",buf,inet_ntoa(c_addr.sin_addr));
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write(c_fd,buf,sizeof(buf));
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send(c_fd, string_send, sizeof(string_send), 0);
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}
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if(pid>0){
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close(c_fd);
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}
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}
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return 0;
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}
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