error: storage size of ‘server_addr’ isn’t known


test2.c: In function ‘main’:
test2.c:23:24: error: storage size of ‘server_addr’ isn’t known
     struct sockaddr_un server_addr;
                        ^

原因:

缺少头文件

#include <sys/un.h>

你可能感兴趣的:(error: storage size of ‘server_addr’ isn’t known)