Dear friends!
The function ioctl return -1 (errno equal 95) if I use cygwin-x86_64 but return
0 if I use cygwin-x86.
#include <stdio.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <errno.h>
int main()
{
int c;
int fd = socket(AF_INET, SOCK_STREAM, 0);
if (ioctl(fd, FIONREAD, &c) == -1)
printf("errno:%u\n", errno);
close(fd);
return 0;
}
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