HP-UX Reference (11i v1 05/09) - 4 File Formats (vol 8)

tun(4) tun(4)

TUIOGNAME Get the interface name.

FIONBIO Set or clear non-blocking mode for I/O operations.

EXAMPLES

#include <net/tun.h>

int tun_fd = -1, len;

char *packet;

tun_fd = open("/dev/tun0", O_RDWR);

ioctl(tun_fd, TUIOSNAME, "du");

len = read(tun_fd, packet, size);

write(tun_fd, packet, len);

ERRORS

If a packet is delivered to the interface for an address family other than

AF_INET, EAFNOSUPPORT will

be returned.

FILES

/dev/tun0 through /dev/tunM-1 ‘inbound’ tunnel devices

/dev/tunM through /dev/tun2*M-1 ‘outbound’ tunnel devices

AUTHOR

tun was developed by the Progressive Systems.