2
操作系统是Ubuntu。 我正在为基本的IPv6操作进行简单的测试。 。 PC可通过轮毂与IP相机(支持IPv6)的连接 ping6测试成功IPv6:connect()总是失败,errno 22
$ ping6 -I eth1 fe80::240:8cff:fe94:451e
PING fe80::240:8cff:fe94:451e(fe80::240:8cff:fe94:451e) from fe80::224:8cff:fe90:ad3b eth1: 56 data bytes
64 bytes from fe80::240:8cff:fe94:451e: icmp_seq=1 ttl=64 time=3.86 ms
64 bytes from fe80::240:8cff:fe94:451e: icmp_seq=2 ttl=64 time=0.471 ms
的代码如下:
#include <linux/in6.h>
#include <sys/socket.h>
#include <stdio.h>
#include <errno.h>
void main()
{
int s, ret, err;
struct sockaddr_in6 addr;
s = socket(AF_INET6, SOCK_STREAM, 0);
addr.sin6_family = AF_INET6;
addr.sin6_port = htons(554);
addr.sin6_flowinfo = 0;
addr.sin6_scope_id = 0;
addr.sin6_addr.s6_addr[0] = 0xfe;
addr.sin6_addr.s6_addr[1] = 0x80;
addr.sin6_addr.s6_addr[2] = 0x00;
addr.sin6_addr.s6_addr[3] = 0x00;
addr.sin6_addr.s6_addr[4] = 0x00;
addr.sin6_addr.s6_addr[5] = 0x00;
addr.sin6_addr.s6_addr[6] = 0x00;
addr.sin6_addr.s6_addr[7] = 0x00;
addr.sin6_addr.s6_addr[8] = 0x02;
addr.sin6_addr.s6_addr[9] = 0x40;
addr.sin6_addr.s6_addr[10] = 0x8c;
addr.sin6_addr.s6_addr[11] = 0xff;
addr.sin6_addr.s6_addr[12] = 0xfe;
addr.sin6_addr.s6_addr[13] = 0x94;
addr.sin6_addr.s6_addr[14] = 0x45;
addr.sin6_addr.s6_addr[15] = 0x1e;
ret = connect(s, (struct sockaddr*)&addr, sizeof(addr));
if (ret == -1)
{
err = errno;
printf("connect failure, errno = %d\n", err);
}
}
结果总是“连接失败, errno = 22“ 问题在哪里?
你打算接受一个答案? – glglgl
而不是打印err,打印strerror(err),使用%s作为格式。 –