如何将字符串转换为 IP 地址，反之亦然

2021-12-23 00:00:00 string ip-address struct c++ in-addr

如何转换字符串 ipAddress (struct in_addr)，反之亦然?以及如何上交无符号长 ipAddress?谢谢

how can I convert a string ipAddress (struct in_addr) and vice versa? and how do I turn in unsigned long ipAddress? thanks

推荐答案

如果您需要其他方式，请使用 inet_ntop() 和 inet_pton().不要使用 inet_ntoa()、inet_aton() 和类似的，因为它们已被弃用且不支持 ipv6.

Use inet_ntop() and inet_pton() if you need it other way around. Do not use inet_ntoa(), inet_aton() and similar as they are deprecated and don't support ipv6.

这是一个很好的指南，其中包含很多示例.

Here is a nice guide with quite a few examples.

// IPv4 demo of inet_ntop() and inet_pton()

struct sockaddr_in sa;
char str[INET_ADDRSTRLEN];

// store this IP address in sa:
inet_pton(AF_INET, "192.0.2.33", &(sa.sin_addr));

// now get it back and print it
inet_ntop(AF_INET, &(sa.sin_addr), str, INET_ADDRSTRLEN);

printf("%s
", str); // prints "192.0.2.33"

相关文章