xcode 函数“ether_ntoa”的隐式声明在 C99 中无效
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原文地址: http://stackoverflow.com/questions/11245280/
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Implicit declaration of function 'ether_ntoa' is invalid in C99
提问by Orchid
It's part of a series of functions that retrieve IP & Mac addresses from the phone.
它是从电话中检索 IP 和 Mac 地址的一系列功能的一部分。
strcpy(temp, (char *)ether_ntoa((const struct ether_addr *)LLADDR(sdl)));
EDIT: No equivalent function needed, there were just a few missing headers.
编辑：不需要等效的功能，只是缺少一些标题。
EDIT: Added cast to LLADDR(sdl)
编辑：将演员表添加到 LLADDR(sdl)
回答by Phillip Mills
As I read it, the error message isn't claiming that the function is missing, only that you don't include its declaration. (I don't knowthat it exists, only that the message has a different complaint.)
当我读到它时，错误消息并没有声称该函数丢失了，只是您没有包含它的声明。（我不知道它是否存在，只知道该消息有不同的抱怨。）
In case it helps, man ether_ntoatells me:
如果有帮助，请man ether_ntoa告诉我：
#include <sys/types.h>
#include <sys/socket.h>
#include <net/ethernet.h>
回答by rjobidon
I included following header file and source code compiled successfully:
我包含了以下头文件和成功编译的源代码：
#import <arpa/inet.h>
