windows 将 IP 从 C 字符串转换为无符号整数？
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Converting IP from C string to unsigned int?
提问by KaiserJohaan
I've got a quick question; I have an IPv4 in a C string (say "192.168.0.1") and I want to convert it to an uint32_t. I'm sure there should be some function for that but I havn't found it. Any ideas?
我有一个简短的问题；我在 C 字符串中有一个 IPv4（比如“192.168.0.1”），我想将它转换为 uint32_t。我确定应该有一些功能，但我还没有找到。有任何想法吗？
回答by cnicutar
The function is called inet_aton.
该函数被调用inet_aton。
int inet_aton(const char *cp, struct in_addr *inp);
The structure in_addr is defined in <netinet/in.h>as:
in_addr 结构体定义<netinet/in.h>为：
typedef uint32_t in_addr_t;
struct in_addr {
in_addr_t s_addr;
};
Of course you can also use the newer function inet_pton.
当然你也可以使用较新的函数inet_pton。
