在我的项目中,我包含pfring.h,但是编译出错了:net/if.h和linux/if.h中的一些函数被重新定义了。我发现pfring.h包含了linux/if.h。
所以,我测试了一个程序,我的测试代码:
#include <linux/if.h>
#include <net/if.h>
int main(void) {
return 0;
}
我预计会出现编译错误。 那么,linux/if.h和net/if.h有什么问题吗? 我不能一次性包含它们吗?
错误信息:
In file included from test.c:1:0:
/usr/include/linux/if.h:178:19: error: field 'ifru_addr' has incomplete type
/usr/include/linux/if.h:179:19: error: field 'ifru_dstaddr' has incomplete type
/usr/include/linux/if.h:180:19: error: field 'ifru_broadaddr' has incomplete type
/usr/include/linux/if.h:181:19: error: field 'ifru_netmask' has incomplete type
/usr/include/linux/if.h:182:20: error: field 'ifru_hwaddr' has incomplete type
In file included from test.c:2:0:
/usr/include/net/if.h:45:5: error: expected identifier before numeric constant
/usr/include/net/if.h:112:8: error: redefinition of 'struct ifmap'
/usr/include/linux/if.h:136:8: note: originally defined here
/usr/include/net/if.h:127:8: error: redefinition of 'struct ifreq'
/usr/include/linux/if.h:170:8: note: originally defined here
/usr/include/net/if.h:177:8: error: redefinition of 'struct ifconf'
/usr/include/linux/if.h:219:8: note: originally defined here