The function ioctl bug

Marco Atzeri marco.atzeri@gmail.com
Fri Jul 1 05:38:00 GMT 2016



On 01/07/2016 07:21, Бабенко Вячеслав wrote:
> Dear friends!
>
> The function ioctl return -1 (errno equal 95) if I use cygwin-x86_64. See my code:
> ...
> int fd = socket(AF_INET, SOCK_STREAM, 0);
> if (ioctl(fd, FIONREAD, &c) == -1)
>     printf("%u", errno);
> ...
> The function ioctl return 0 if I use cygwin-x86.
>
>

the test case must be a complete minimal program that anyone could build.



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