1/*
2 * Copyright (c) 1990, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from the Stanford/CMU enet packet filter,
6 * (net/enet.c) distributed as part of 4.3BSD, and code contributed
7 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
8 * Berkeley Laboratory.
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32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)bpf.c 8.4 (Berkeley) 1/9/95
39 *
40 * $FreeBSD: head/sys/net/bpf.c 111119 2003-02-19 05:47:46Z imp $
41 */
42
43#include "opt_bpf.h"
44#include "opt_mac.h"
45#include "opt_netgraph.h"
46
47#include <sys/param.h>
48#include <sys/systm.h>
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223 if (hlen != 0) {
224 m->m_pkthdr.len -= hlen;
225 m->m_len -= hlen;
226#if BSD >= 199103
227 m->m_data += hlen; /* XXX */
228#else
229 m->m_off += hlen;
230#endif
231 error = uiomove((caddr_t)sockp->sa_data, hlen, uio);
232 if (error)
233 goto bad;
234 }
235 error = uiomove(mtod(m, caddr_t), len - hlen, uio);
236 if (!error)
237 return (0);
238bad:
239 m_freem(m);
240 return (error);
241}
242
243/*
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2 * Copyright (c) 1990, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from the Stanford/CMU enet packet filter,
6 * (net/enet.c) distributed as part of 4.3BSD, and code contributed
7 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
8 * Berkeley Laboratory.
--- 23 unchanged lines hidden (view full) ---
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)bpf.c 8.4 (Berkeley) 1/9/95
39 *
40 * $FreeBSD: head/sys/net/bpf.c 111119 2003-02-19 05:47:46Z imp $
41 */
42
43#include "opt_bpf.h"
44#include "opt_mac.h"
45#include "opt_netgraph.h"
46
47#include <sys/param.h>
48#include <sys/systm.h>
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223 if (hlen != 0) {
224 m->m_pkthdr.len -= hlen;
225 m->m_len -= hlen;
226#if BSD >= 199103
227 m->m_data += hlen; /* XXX */
228#else
229 m->m_off += hlen;
230#endif
231 error = uiomove((caddr_t)sockp->sa_data, hlen, uio);
232 if (error)
233 goto bad;
234 }
235 error = uiomove(mtod(m, caddr_t), len - hlen, uio);
236 if (!error)
237 return (0);
238bad:
239 m_freem(m);
240 return (error);
241}
242
243/*
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