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修改 ch14 错别字

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上官永石
2022-07-29 11:01:45 +08:00
parent c7428c258c
commit 8d76ea3be9
1 changed files with 2 additions and 2 deletions
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4
ch14/README.md
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@@ -43,7 +43,7 @@ setsockopt(send_sock,IPPROTO_IP,IP_MULTICAST_TTL,(void*)&time_live,sizeof(time_l
...
```
加入多播组也通过设置设置套接字可选项来完成。加入多播组相关的协议层为 IPPROTO_IP，选项名为 IP_ADD_MEMBERSHIP 。可通过如下代码加入多播组：
加入多播组也通过设置套接字可选项来完成。加入多播组相关的协议层为 IPPROTO_IP，选项名为 IP_ADD_MEMBERSHIP 。可通过如下代码加入多播组：
```c
int recv_sock;
@@ -53,7 +53,7 @@ recv_sock=socket(PF_INET,SOCK_DGRAM,0);
...
join_adr.imr_multiaddr.s_addr="多播组地址信息";
join_adr.imr_interface.s_addr="加入多播组的主机地址信息";
setsockopt(recv_sock,IPPROTO_IP,IP_ADD_MEMBERSHIP,(void*)&join_adr,sizeof(time_live);
setsockopt(recv_sock,IPPROTO_IP,IP_ADD_MEMBERSHIP,(void*)&join_adr,sizeof(join_adr);
...
```