NAME

     skb_peek - peek an sk_buff

SYNOPSIS

     #include <linux/skbuff.h>

     struct sk_buff *skb_peek(struct sk_buff_head *list_);

DESCRIPTION

     The skb_peek function extracts the head  element  of  list_,
     without  modifying list_.  It is important to note that this
     is not necessarily a safe operation, as list_ maintains  the
     original  sk_buff,  and other operations on list_ may effect
     it.  To be safe, either  disable  interrupts  using  cli(9),
     call  skb_peek, copy the data necessary to continue, and re-
     enable interrupts using sti(9), or use skb_dequeue(9).

RETURN VALUE

     Returns a pointer to sk_buff if there is a next  element  on
     the list_.  Otherwise, returns NULL.

AVAILABILITY

     Linux 1.0+

SEE ALSO

     intro(9), skb_unlink(9), skb_dequeue(9)

     /usr/src/linux/net/appletalk/ddp.c
     /usr/src/linux/net/core/datagram.c
     /usr/src/linux/net/ipv4/tcp.c  /usr/src/linux/net/ipv4/udp.c
     /usr/src/linux/net/unix/af_unix.c

AUTHOR

     Cyrus Durgin <cider@speakeasy.org>