From 0b552f6928a362b701a7768fd3a6cdb200a83ce8 Mon Sep 17 00:00:00 2001
From: ningling <2907616355@qq.com>
Date: Tue, 9 May 2023 08:35:16 +0000
Subject: [PATCH] add 6/client.c.

Signed-off-by: ningling <2907616355@qq.com>
---
 6/client.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 6/client.c

diff --git a/6/client.c b/6/client.c
new file mode 100644
index 0000000..f42bc07
--- /dev/null
+++ b/6/client.c
@@ -0,0 +1,65 @@
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+ 
+#define MYPORT 8887
+char* SERVERIP = "127.0.0.1";
+ 
+#define ERR_EXIT(m) 
+    do 
+{ 
+    perror(m); 
+    exit(EXIT_FAILURE); 
+    } while(0)
+ 
+void echo_cli(int sock)
+{
+    struct sockaddr_in servaddr;
+    memset(&servaddr, 0, sizeof(servaddr));
+    servaddr.sin_family = AF_INET;
+    servaddr.sin_port = htons(MYPORT);
+    servaddr.sin_addr.s_addr = inet_addr(SERVERIP);
+    
+    int ret;
+    char sendbuf[1024] = {0};
+    char recvbuf[1024] = {0};
+    while (fgets(sendbuf, sizeof(sendbuf), stdin) != NULL)
+    {
+        
+        printf("向服务器发送：%s\n",sendbuf);
+        sendto(sock, sendbuf, strlen(sendbuf), 0, (struct sockaddr *)&servaddr, sizeof(servaddr));
+        
+        ret = recvfrom(sock, recvbuf, sizeof(recvbuf), 0, NULL, NULL);
+        if (ret == -1)
+        {
+            if (errno == EINTR)
+                continue;
+            ERR_EXIT("recvfrom");
+        }
+        printf("从服务器接收：%s\n",recvbuf);
+        
+        memset(sendbuf, 0, sizeof(sendbuf));
+        memset(recvbuf, 0, sizeof(recvbuf));
+    }
+    
+    close(sock);
+    
+    
+}
+ 
+int main(void)
+{
+    int sock;
+    if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
+        ERR_EXIT("socket");
+    
+    echo_cli(sock);
+    
+    return 0;
+}
\ No newline at end of file
-- 
Gitee