mirror of
https://github.com/riba2534/TCP-IP-NetworkNote.git
synced 2026-02-03 01:53:19 +08:00
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
#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 <arpa/inet.h>
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#include <sys/socket.h>
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#define BUF_SIZE 1024
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int main(int argc, char *argv[])
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{
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int serv_sock, clnt_sock;
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FILE *readfp;
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FILE *writefp;
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struct sockaddr_in serv_adr, clnt_adr;
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socklen_t clnt_adr_sz;
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char buf[BUF_SIZE] = {
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0,
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};
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serv_sock = socket(PF_INET, SOCK_STREAM, 0);
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memset(&serv_adr, 0, sizeof(serv_adr));
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serv_adr.sin_family = AF_INET;
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serv_adr.sin_addr.s_addr = htonl(INADDR_ANY);
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serv_adr.sin_port = htons(atoi(argv[1]));
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bind(serv_sock, (struct sockaddr *)&serv_adr, sizeof(serv_adr));
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listen(serv_sock, 5);
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clnt_adr_sz = sizeof(clnt_adr);
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clnt_sock = accept(serv_sock, (struct sockaddr *)&clnt_adr, &clnt_adr_sz);
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readfp = fdopen(clnt_sock, "r");
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writefp = fdopen(dup(clnt_sock), "w"); //复制文件描述符
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fputs("FROM SERVER: Hi~ client? \n", writefp);
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fputs("I love all of the world \n", writefp);
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fputs("You are awesome! \n", writefp);
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fflush(writefp);
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shutdown(fileno(writefp), SHUT_WR); //对 fileno 产生的文件描述符使用 shutdown 进入半关闭状态
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fclose(writefp);
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fgets(buf, sizeof(buf), readfp);
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fputs(buf, stdout);
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fclose(readfp);
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return 0;
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}
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