error: ‘struct hostent’ has no member named ‘h_addr’

缺乏、安全感 2022-09-23 11:00 114阅读 0赞

编译网络程序是出现错误：
error: ‘struct hostent’ has no member named ‘h_addr’
查看相应的头文件里面有h_addr 成员

  1. /* Description of data base entry for a single host.  */
  2. struct hostent
  3. {
  4.   char *h_name;         /* Official name of host.  */
  5.   char **h_aliases;     /* Alias list.  */
  6.   int h_addrtype;       /* Host address type.  */
  7.   int h_length;         /* Length of address.  */
  8.   char **h_addr_list;       /* List of addresses from name server.  */
  9. #if defined __USE_MISC || defined __USE_GNU
  10. # define    h_addr  h_addr_list[0] /* Address, for backward compatibility.*/
  11. #endif
  12. };

原因是编译是没有加相应的选项-D_GNU_SOURCE

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