On 3/13/19 1:38 PM, Marc-André Lureau wrote:
> In order to make slirp a standalone project, the project must have a
> clear license, and be compatible with the GPL or LGPL.
>
> Since commit 2f5f89963186d42a7ded253bc6cf5b32abb45cec ("Remove the
> advertising clause from the slirp license"), slirp is BSD-3. But new
> files have been added under slirp/ with QEMU GPL license since then.
>
> The copyright holders have been asked to relicense files to BSD-3:
>
> - slirp/dhcpv6.{c,h}
>
> Subject: Re: Clearing slirp/ license
> To: "Marc-André Lureau" <marcandre.lur...@gmail.com>, QEMU
> <qemu-devel@nongnu.org>, Thomas Huth <th...@redhat.com>
> Cc: Peter Maydell <peter.mayd...@linaro.org>, Samuel Thibault
> <samuel.thiba...@ens-lyon.org>
> References:
> <caj+f1ckbrndlpb_wolhurdujd-j1rhy2tokstehcbt_zs4x...@mail.gmail.com>
> From: "Cédric Le Goater" <c...@kaod.org>
> Message-ID: <e942cdab-fe1b-fdf4-3b9f-da16a4afa...@kaod.org>
> Date: Mon, 11 Mar 2019 16:23:25 +0100
>
>> Could you reply that you have no objection in relicensing those files
>> are 3-Clause BSD?
>
> Fine for me. You can change the license of slirp/ncsi.c and
> slirp/ncsi-pkt.hto a 3-Clause BSD.
>
> Thanks,
>
> C.
>
> Subject: Re: [Qemu-devel] Clearing slirp/ license
> To: Peter Maydell <peter.mayd...@linaro.org>, Shan Gavin
> <shan.ga...@gmail.com>
> Cc: Alexey Kardashevskiy <a...@ozlabs.ru>, "Marc-André Lureau"
> <marcandre.lur...@gmail.com>, Gavin Shan <gws...@linux.vnet.ibm.com>, Thomas
> Huth <th...@redhat.com>, QEMU <qemu-devel@nongnu.org>, Samuel Thibault
> <samuel.thiba...@ens-lyon.org>
> References:
> <caj+f1ckbrndlpb_wolhurdujd-j1rhy2tokstehcbt_zs4x...@mail.gmail.com>
> <e942cdab-fe1b-fdf4-3b9f-da16a4afa...@kaod.org>
> <caj+f1c+hffsa5gcsdtttp5j+uydvndyjwrm9ojm26+zc1zq...@mail.gmail.com>
> <cc62e1fd-c564-e1b7-d10c-30665b481...@ozlabs.ru>
> <CAOL5TwkQXhPjdPP9v7n7mxAVxbDCSo6MEaG+E-Xys=mod_p...@mail.gmail.com>
> <CAFEAcA_g=L2LSo=b_5dpjhjjrqfiob6sswmvohqwpvgiki_...@mail.gmail.com>
> From: "Cédric Le Goater" <c...@kaod.org>
> Message-ID: <4ddf6031-0df1-b3b5-965e-a181266e4...@kaod.org>
> Date: Tue, 12 Mar 2019 11:49:21 +0100
>
>> Is the code in question copyright you personally, or copyright
>> IBM as your employer at the time ? If the latter, it is IBM that
>> would need to approve the relicensing.
>
> That was done. I had our legal team approve the change of license.
>
> Thanks,
>
> C.
>
> From: Shan Gavin <shan.ga...@gmail.com>
> Date: Tue, 12 Mar 2019 15:04:54 +0800
> Message-ID:
> <CAOL5TwkQXhPjdPP9v7n7mxAVxbDCSo6MEaG+E-Xys=mod_p...@mail.gmail.com>
> Subject: Re: [Qemu-devel] Clearing slirp/ license
> To: Alexey Kardashevskiy <a...@ozlabs.ru>
> Cc: "Marc-André Lureau" <marcandre.lur...@gmail.com>, "Cédric Le Goater"
> <c...@kaod.org>, gws...@linux.vnet.ibm.com, Peter Maydell
> <peter.mayd...@linaro.org>, Thomas Huth <th...@redhat.com>, QEMU
> <qemu-devel@nongnu.org>, Samuel Thibault <samuel.thiba...@ens-lyon.org>
>
>> Gavin, could you reply that you have no objection in relicensing
>> ncsi-pkt.h as 3-Clause BSD?
>
> No objection. Please go ahead with the relicensing.
>
> Cheers,
> Gavin
>
> - ncsi.c, ncsi-pkt.h
>
> Subject: Re: Clearing slirp/ license
> To: "Marc-André Lureau" <marcandre.lur...@gmail.com>, QEMU
> <qemu-devel@nongnu.org>, "Cédric Le Goater" <c...@kaod.org>
> Cc: Peter Maydell <peter.mayd...@linaro.org>, Samuel Thibault
> <samuel.thiba...@ens-lyon.org>
> References:
> <caj+f1ckbrndlpb_wolhurdujd-j1rhy2tokstehcbt_zs4x...@mail.gmail.com>
> From: Thomas Huth <th...@redhat.com>
> Message-ID: <ed5a9f55-f2e5-298d-58ac-414759e9b...@redhat.com>
> Date: Wed, 13 Feb 2019 12:30:32 +0100
>
>> Could you reply that you have no objection in relicensing those files
>> are 3-Clause BSD?
>
> Ok, for the records: I'm fine if you change the license of dhcpv6.[ch]
> to either 3-Clause BSD or 2-Clause BSD.
>
> Thomas
>
> - vmstate.{c,h}
>
> From: Juan Quintela <quint...@redhat.com>
> To: "Marc-André Lureau" <marcandre.lur...@gmail.com>
> Cc: QEMU <qemu-devel@nongnu.org>, Peter Maydell <peter.mayd...@linaro.org>,
> Samuel Thibault <samuel.thiba...@ens-lyon.org>
> Subject: Re: Clearing slirp/ license
> Date: Tue, 12 Mar 2019 12:43:17 +0100
> Message-ID: <87k1h4qpwq....@trasno.org>
>
>> Juan, Could you reply that you have no objection in relicensing the
>> vmstate files as 3-Clause BSD?
>
> No problem at all on my side.
>
> Later, Juan.
>
> Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
Reviewed-by: Cédric Le Goater <c...@kaod.org>
Thanks,
C.
> ---
> slirp/src/bootp.h | 1 +
> slirp/src/debug.h | 4 +---
> slirp/src/dhcpv6.h | 4 +---
> slirp/src/if.h | 4 +---
> slirp/src/ip.h | 30 ++----------------------------
> slirp/src/ip6.h | 1 +
> slirp/src/ip6_icmp.h | 1 +
> slirp/src/ip_icmp.h | 30 ++----------------------------
> slirp/src/libslirp.h | 1 +
> slirp/src/main.h | 4 +---
> slirp/src/mbuf.h | 30 ++----------------------------
> slirp/src/misc.h | 4 +---
> slirp/src/ncsi-pkt.h | 6 +-----
> slirp/src/qtailq.h | 32 ++------------------------------
> slirp/src/sbuf.h | 4 +---
> slirp/src/slirp.h | 1 +
> slirp/src/socket.h | 4 +---
> slirp/src/stream.h | 1 +
> slirp/src/tcp.h | 30 ++----------------------------
> slirp/src/tcp_var.h | 30 ++----------------------------
> slirp/src/tcpip.h | 30 ++----------------------------
> slirp/src/tftp.h | 1 +
> slirp/src/udp.h | 30 ++----------------------------
> slirp/src/util.h | 19 +------------------
> slirp/src/vmstate.h | 19 +------------------
> slirp/src/arp_table.c | 19 +------------------
> slirp/src/bootp.c | 19 +------------------
> slirp/src/cksum.c | 30 ++----------------------------
> slirp/src/dhcpv6.c | 14 +-------------
> slirp/src/dnssearch.c | 19 +------------------
> slirp/src/if.c | 4 +---
> slirp/src/ip6_icmp.c | 1 +
> slirp/src/ip6_input.c | 1 +
> slirp/src/ip6_output.c | 1 +
> slirp/src/ip_icmp.c | 30 ++----------------------------
> slirp/src/ip_input.c | 35 ++---------------------------------
> slirp/src/ip_output.c | 35 ++---------------------------------
> slirp/src/mbuf.c | 4 +---
> slirp/src/misc.c | 4 +---
> slirp/src/ncsi.c | 4 +---
> slirp/src/ndp_table.c | 1 +
> slirp/src/sbuf.c | 4 +---
> slirp/src/slirp.c | 19 +------------------
> slirp/src/socket.c | 4 +---
> slirp/src/state.c | 19 +------------------
> slirp/src/stream.c | 19 +------------------
> slirp/src/tcp_input.c | 33 ++-------------------------------
> slirp/src/tcp_output.c | 33 ++-------------------------------
> slirp/src/tcp_subr.c | 33 ++-------------------------------
> slirp/src/tcp_timer.c | 30 ++----------------------------
> slirp/src/tftp.c | 19 +------------------
> slirp/src/udp.c | 33 ++-------------------------------
> slirp/src/udp6.c | 1 +
> slirp/src/util.c | 19 +------------------
> slirp/src/vmstate.c | 4 +---
> 55 files changed, 72 insertions(+), 740 deletions(-)
>
> diff --git a/slirp/src/bootp.h b/slirp/src/bootp.h
> index 4043489835..d881ad620a 100644
> --- a/slirp/src/bootp.h
> +++ b/slirp/src/bootp.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /* bootp/dhcp defines */
>
> #ifndef SLIRP_BOOTP_H
> diff --git a/slirp/src/debug.h b/slirp/src/debug.h
> index 44d922df37..c95fd8ffd2 100644
> --- a/slirp/src/debug.h
> +++ b/slirp/src/debug.h
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #ifndef DEBUG_H_
> diff --git a/slirp/src/dhcpv6.h b/slirp/src/dhcpv6.h
> index 3373f6cb89..8b5ad064f0 100644
> --- a/slirp/src/dhcpv6.h
> +++ b/slirp/src/dhcpv6.h
> @@ -1,10 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Definitions and prototypes for SLIRP stateless DHCPv6
> *
> * Copyright 2016 Thomas Huth, Red Hat Inc.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2
> - * or later. See the COPYING file in the top-level directory.
> */
> #ifndef SLIRP_DHCPV6_H
> #define SLIRP_DHCPV6_H
> diff --git a/slirp/src/if.h b/slirp/src/if.h
> index 69569c10df..b71c37d6ea 100644
> --- a/slirp/src/if.h
> +++ b/slirp/src/if.h
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #ifndef IF_H
> diff --git a/slirp/src/ip.h b/slirp/src/ip.h
> index 73a4d2a3d2..bc6a26eba5 100644
> --- a/slirp/src/ip.h
> +++ b/slirp/src/ip.h
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)ip.h 8.1 (Berkeley) 6/10/93
> - * ip.h,v 1.3 1994/08/21 05:27:30 paul Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #ifndef IP_H
> diff --git a/slirp/src/ip6.h b/slirp/src/ip6.h
> index 1b3364f960..33683c8e20 100644
> --- a/slirp/src/ip6.h
> +++ b/slirp/src/ip6.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 2013
> * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
> diff --git a/slirp/src/ip6_icmp.h b/slirp/src/ip6_icmp.h
> index e8ed753db5..d8d13e30fc 100644
> --- a/slirp/src/ip6_icmp.h
> +++ b/slirp/src/ip6_icmp.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 2013
> * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
> diff --git a/slirp/src/ip_icmp.h b/slirp/src/ip_icmp.h
> index a4e5b8b265..765943c1d1 100644
> --- a/slirp/src/ip_icmp.h
> +++ b/slirp/src/ip_icmp.h
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
> - * ip_icmp.h,v 1.4 1995/05/30 08:09:43 rgrimes Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #ifndef NETINET_IP_ICMP_H
> diff --git a/slirp/src/libslirp.h b/slirp/src/libslirp.h
> index 2d13950065..3b28764bec 100644
> --- a/slirp/src/libslirp.h
> +++ b/slirp/src/libslirp.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> #ifndef LIBSLIRP_H
> #define LIBSLIRP_H
>
> diff --git a/slirp/src/main.h b/slirp/src/main.h
> index f11d4572b7..3b3f883703 100644
> --- a/slirp/src/main.h
> +++ b/slirp/src/main.h
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #ifndef SLIRP_MAIN_H
> diff --git a/slirp/src/mbuf.h b/slirp/src/mbuf.h
> index e2d443418a..b618c75cba 100644
> --- a/slirp/src/mbuf.h
> +++ b/slirp/src/mbuf.h
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)mbuf.h 8.3 (Berkeley) 1/21/94
> - * mbuf.h,v 1.9 1994/11/14 13:54:20 bde Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #ifndef MBUF_H
> diff --git a/slirp/src/misc.h b/slirp/src/misc.h
> index c2ceadb591..23b7490448 100644
> --- a/slirp/src/misc.h
> +++ b/slirp/src/misc.h
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #ifndef MISC_H
> diff --git a/slirp/src/ncsi-pkt.h b/slirp/src/ncsi-pkt.h
> index ea07d1cd0f..aced7960ea 100644
> --- a/slirp/src/ncsi-pkt.h
> +++ b/slirp/src/ncsi-pkt.h
> @@ -1,10 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright Gavin Shan, IBM Corporation 2016.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License, or
> - * (at your option) any later version.
> */
>
> #ifndef NCSI_PKT_H
> diff --git a/slirp/src/qtailq.h b/slirp/src/qtailq.h
> index a89b0c439a..a809692625 100644
> --- a/slirp/src/qtailq.h
> +++ b/slirp/src/qtailq.h
> @@ -1,38 +1,10 @@
> -/* $NetBSD: queue.h,v 1.52 2009/04/20 09:56:08 mschuett Exp $ */
> +/* SPDX-License-Identifier: BSD-3-Clause */
>
> /*
> * slirp version: Copy from QEMU, removed all but tail queues.
> - */
> -
> -/*
> + *
> * Copyright (c) 1991, 1993
> * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)queue.h 8.5 (Berkeley) 8/20/94
> */
>
> #ifndef QTAILQ_H
> diff --git a/slirp/src/sbuf.h b/slirp/src/sbuf.h
> index 1cb9a42834..337af1bbde 100644
> --- a/slirp/src/sbuf.h
> +++ b/slirp/src/sbuf.h
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #ifndef SBUF_H
> diff --git a/slirp/src/slirp.h b/slirp/src/slirp.h
> index 8068ba1d1e..39580934f3 100644
> --- a/slirp/src/slirp.h
> +++ b/slirp/src/slirp.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> #ifndef SLIRP_H
> #define SLIRP_H
>
> diff --git a/slirp/src/socket.h b/slirp/src/socket.h
> index e4d12cd591..25403898cd 100644
> --- a/slirp/src/socket.h
> +++ b/slirp/src/socket.h
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #ifndef SLIRP_SOCKET_H
> diff --git a/slirp/src/stream.h b/slirp/src/stream.h
> index 985334c043..08bb5b6610 100644
> --- a/slirp/src/stream.h
> +++ b/slirp/src/stream.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> #ifndef STREAM_H_
> #define STREAM_H_
>
> diff --git a/slirp/src/tcp.h b/slirp/src/tcp.h
> index 47aaea6c5b..07ac4a5db5 100644
> --- a/slirp/src/tcp.h
> +++ b/slirp/src/tcp.h
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)tcp.h 8.1 (Berkeley) 6/10/93
> - * tcp.h,v 1.3 1994/08/21 05:27:34 paul Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #ifndef TCP_H
> diff --git a/slirp/src/tcp_var.h b/slirp/src/tcp_var.h
> index 27ef1a51cb..1c59e0dba3 100644
> --- a/slirp/src/tcp_var.h
> +++ b/slirp/src/tcp_var.h
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1993, 1994
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)tcp_var.h 8.3 (Berkeley) 4/10/94
> - * tcp_var.h,v 1.3 1994/08/21 05:27:39 paul Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #ifndef TCP_VAR_H
> diff --git a/slirp/src/tcpip.h b/slirp/src/tcpip.h
> index 07dbf2c432..ff115a2718 100644
> --- a/slirp/src/tcpip.h
> +++ b/slirp/src/tcpip.h
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)tcpip.h 8.1 (Berkeley) 6/10/93
> - * tcpip.h,v 1.3 1994/08/21 05:27:40 paul Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #ifndef TCPIP_H
> diff --git a/slirp/src/tftp.h b/slirp/src/tftp.h
> index a4c4a64e64..3fe3b70205 100644
> --- a/slirp/src/tftp.h
> +++ b/slirp/src/tftp.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /* tftp defines */
>
> #ifndef SLIRP_TFTP_H
> diff --git a/slirp/src/udp.h b/slirp/src/udp.h
> index 3d29504caa..912e16705d 100644
> --- a/slirp/src/udp.h
> +++ b/slirp/src/udp.h
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)udp.h 8.1 (Berkeley) 6/10/93
> - * udp.h,v 1.3 1994/08/21 05:27:41 paul Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #ifndef UDP_H
> diff --git a/slirp/src/util.h b/slirp/src/util.h
> index e94ee4e7f1..843a0635f9 100644
> --- a/slirp/src/util.h
> +++ b/slirp/src/util.h
> @@ -1,24 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 2003-2008 Fabrice Bellard
> * Copyright (c) 2010-2019 Red Hat, Inc.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
> #ifndef UTIL_H_
> #define UTIL_H_
> diff --git a/slirp/src/vmstate.h b/slirp/src/vmstate.h
> index cfa7b8c825..5ce06fd7b9 100644
> --- a/slirp/src/vmstate.h
> +++ b/slirp/src/vmstate.h
> @@ -1,27 +1,10 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * QEMU migration/snapshot declarations
> *
> * Copyright (c) 2009-2011 Red Hat, Inc.
> *
> * Original author: Juan Quintela <quint...@redhat.com>
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
> #ifndef VMSTATE_H_
> #define VMSTATE_H_
> diff --git a/slirp/src/arp_table.c b/slirp/src/arp_table.c
> index 58eafdcfd8..d4c1d725e1 100644
> --- a/slirp/src/arp_table.c
> +++ b/slirp/src/arp_table.c
> @@ -1,25 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * ARP table
> *
> * Copyright (c) 2011 AdaCore
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/bootp.c b/slirp/src/bootp.c
> index d396849a05..d486110f2e 100644
> --- a/slirp/src/bootp.c
> +++ b/slirp/src/bootp.c
> @@ -1,25 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * QEMU BOOTP/DHCP server
> *
> * Copyright (c) 2004 Fabrice Bellard
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
> #include "slirp.h"
>
> diff --git a/slirp/src/cksum.c b/slirp/src/cksum.c
> index 25bfa67348..76414ea699 100644
> --- a/slirp/src/cksum.c
> +++ b/slirp/src/cksum.c
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1988, 1992, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)in_cksum.c 8.1 (Berkeley) 6/10/93
> - * in_cksum.c,v 1.2 1994/08/02 07:48:16 davidg Exp
> + * he Regents of the University of California. All rights reserved.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/dhcpv6.c b/slirp/src/dhcpv6.c
> index e655c7d5b1..33cd44ad67 100644
> --- a/slirp/src/dhcpv6.c
> +++ b/slirp/src/dhcpv6.c
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * SLIRP stateless DHCPv6
> *
> @@ -5,19 +6,6 @@
> * See RFC 3315, RFC 3736, RFC 3646 and RFC 5970 for details.
> *
> * Copyright 2016 Thomas Huth, Red Hat Inc.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License,
> - * or (at your option) any later version.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, see <http://www.gnu.org/licenses/>.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/dnssearch.c b/slirp/src/dnssearch.c
> index c459cece8d..5a7ab63327 100644
> --- a/slirp/src/dnssearch.c
> +++ b/slirp/src/dnssearch.c
> @@ -1,25 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Domain search option for DHCP (RFC 3397)
> *
> * Copyright (c) 2012 Klaus Stengel
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/if.c b/slirp/src/if.c
> index 1830cc396c..6eaac7292a 100644
> --- a/slirp/src/if.c
> +++ b/slirp/src/if.c
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/ip6_icmp.c b/slirp/src/ip6_icmp.c
> index c1e3d30470..5642457fdd 100644
> --- a/slirp/src/ip6_icmp.c
> +++ b/slirp/src/ip6_icmp.c
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 2013
> * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
> diff --git a/slirp/src/ip6_input.c b/slirp/src/ip6_input.c
> index 1b8c003c66..d9d2b7e9cd 100644
> --- a/slirp/src/ip6_input.c
> +++ b/slirp/src/ip6_input.c
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 2013
> * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
> diff --git a/slirp/src/ip6_output.c b/slirp/src/ip6_output.c
> index 19d1ae7748..b86110662c 100644
> --- a/slirp/src/ip6_output.c
> +++ b/slirp/src/ip6_output.c
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 2013
> * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
> diff --git a/slirp/src/ip_icmp.c b/slirp/src/ip_icmp.c
> index 120108f582..fd69e3e743 100644
> --- a/slirp/src/ip_icmp.c
> +++ b/slirp/src/ip_icmp.c
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)ip_icmp.c 8.2 (Berkeley) 1/4/94
> - * ip_icmp.c,v 1.7 1995/05/30 08:09:42 rgrimes Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/ip_input.c b/slirp/src/ip_input.c
> index e0b94b0e42..a31358cc16 100644
> --- a/slirp/src/ip_input.c
> +++ b/slirp/src/ip_input.c
> @@ -1,41 +1,10 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1993
> - * The Regents of the University of California. All rights reserved.
> + * The Regents of the University of California. All rights reserved.
> *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)ip_input.c 8.2 (Berkeley) 1/4/94
> - * ip_input.c,v 1.11 1994/11/16 10:17:08 jkh Exp
> - */
> -
> -/*
> * Changes and additions relating to SLiRP are
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/ip_output.c b/slirp/src/ip_output.c
> index f6ec141df5..9fb7124309 100644
> --- a/slirp/src/ip_output.c
> +++ b/slirp/src/ip_output.c
> @@ -1,41 +1,10 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1990, 1993
> - * The Regents of the University of California. All rights reserved.
> + * The Regents of the University of California. All rights reserved.
> *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)ip_output.c 8.3 (Berkeley) 1/21/94
> - * ip_output.c,v 1.9 1994/11/16 10:17:10 jkh Exp
> - */
> -
> -/*
> * Changes and additions relating to SLiRP are
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/mbuf.c b/slirp/src/mbuf.c
> index 521c02c967..800406ca9e 100644
> --- a/slirp/src/mbuf.c
> +++ b/slirp/src/mbuf.c
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> /*
> diff --git a/slirp/src/misc.c b/slirp/src/misc.c
> index 937a418d4e..7c5db0e0aa 100644
> --- a/slirp/src/misc.c
> +++ b/slirp/src/misc.c
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/ncsi.c b/slirp/src/ncsi.c
> index 359f52c284..8fd461381f 100644
> --- a/slirp/src/ncsi.c
> +++ b/slirp/src/ncsi.c
> @@ -1,10 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * NC-SI (Network Controller Sideband Interface) "echo" model
> *
> * Copyright (C) 2016-2018 IBM Corp.
> - *
> - * This code is licensed under the GPL version 2 or later. See the
> - * COPYING file in the top-level directory.
> */
> #include "slirp.h"
>
> diff --git a/slirp/src/ndp_table.c b/slirp/src/ndp_table.c
> index 34ea4fdf1f..78324877e2 100644
> --- a/slirp/src/ndp_table.c
> +++ b/slirp/src/ndp_table.c
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 2013
> * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
> diff --git a/slirp/src/sbuf.c b/slirp/src/sbuf.c
> index 51a9f0cc7d..9c0b31b513 100644
> --- a/slirp/src/sbuf.c
> +++ b/slirp/src/sbuf.c
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/slirp.c b/slirp/src/slirp.c
> index 18af670a0a..d9ea835a13 100644
> --- a/slirp/src/slirp.c
> +++ b/slirp/src/slirp.c
> @@ -1,25 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * libslirp glue
> *
> * Copyright (c) 2004-2008 Fabrice Bellard
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
> #include "slirp.h"
>
> diff --git a/slirp/src/socket.c b/slirp/src/socket.c
> index f2428a3ae8..4a3c935e25 100644
> --- a/slirp/src/socket.c
> +++ b/slirp/src/socket.c
> @@ -1,8 +1,6 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/state.c b/slirp/src/state.c
> index f5dd80cdc8..11ba93c132 100644
> --- a/slirp/src/state.c
> +++ b/slirp/src/state.c
> @@ -1,25 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * libslirp
> *
> * Copyright (c) 2004-2008 Fabrice Bellard
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
> #include "slirp.h"
> #include "vmstate.h"
> diff --git a/slirp/src/stream.c b/slirp/src/stream.c
> index d114dde334..9caf7df5ed 100644
> --- a/slirp/src/stream.c
> +++ b/slirp/src/stream.c
> @@ -1,25 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * libslirp io streams
> *
> * Copyright (c) 2018 Red Hat, Inc.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
> #include "stream.h"
> #include <glib.h>
> diff --git a/slirp/src/tcp_input.c b/slirp/src/tcp_input.c
> index b10477fc57..2987ebd4f9 100644
> --- a/slirp/src/tcp_input.c
> +++ b/slirp/src/tcp_input.c
> @@ -1,41 +1,12 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1994
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)tcp_input.c 8.5 (Berkeley) 4/10/94
> - * tcp_input.c,v 1.10 1994/10/13 18:36:32 wollman Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> /*
> * Changes and additions relating to SLiRP
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/tcp_output.c b/slirp/src/tcp_output.c
> index e9674df121..143c4fbf85 100644
> --- a/slirp/src/tcp_output.c
> +++ b/slirp/src/tcp_output.c
> @@ -1,41 +1,12 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1990, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)tcp_output.c 8.3 (Berkeley) 12/30/93
> - * tcp_output.c,v 1.3 1994/09/15 10:36:55 davidg Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> /*
> * Changes and additions relating to SLiRP
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/tcp_subr.c b/slirp/src/tcp_subr.c
> index 1db59caa89..1c93bae6c1 100644
> --- a/slirp/src/tcp_subr.c
> +++ b/slirp/src/tcp_subr.c
> @@ -1,41 +1,12 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1990, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)tcp_subr.c 8.1 (Berkeley) 6/10/93
> - * tcp_subr.c,v 1.5 1994/10/08 22:39:58 phk Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> /*
> * Changes and additions relating to SLiRP
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/tcp_timer.c b/slirp/src/tcp_timer.c
> index 7be54570af..774737c565 100644
> --- a/slirp/src/tcp_timer.c
> +++ b/slirp/src/tcp_timer.c
> @@ -1,33 +1,7 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1990, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)tcp_timer.c 8.1 (Berkeley) 6/10/93
> - * tcp_timer.c,v 1.2 1994/08/02 07:49:10 davidg Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/tftp.c b/slirp/src/tftp.c
> index 2d8f978786..411a9f4ba4 100644
> --- a/slirp/src/tftp.c
> +++ b/slirp/src/tftp.c
> @@ -1,25 +1,8 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * tftp.c - a simple, read-only tftp server for qemu
> *
> * Copyright (c) 2004 Magnus Damm <d...@opensource.se>
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/udp.c b/slirp/src/udp.c
> index fa9f4a08bd..0c001757a4 100644
> --- a/slirp/src/udp.c
> +++ b/slirp/src/udp.c
> @@ -1,41 +1,12 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 1982, 1986, 1988, 1990, 1993
> - * The Regents of the University of California. All rights reserved.
> - *
> - * Redistribution and use in source and binary forms, with or without
> - * modification, are permitted provided that the following conditions
> - * are met:
> - * 1. Redistributions of source code must retain the above copyright
> - * notice, this list of conditions and the following disclaimer.
> - * 2. Redistributions in binary form must reproduce the above copyright
> - * notice, this list of conditions and the following disclaimer in the
> - * documentation and/or other materials provided with the distribution.
> - * 3. Neither the name of the University nor the names of its contributors
> - * may be used to endorse or promote products derived from this software
> - * without specific prior written permission.
> - *
> - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
> - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
> - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> - * SUCH DAMAGE.
> - *
> - * @(#)udp_usrreq.c 8.4 (Berkeley) 1/21/94
> - * udp_usrreq.c,v 1.4 1994/10/02 17:48:45 phk Exp
> + * The Regents of the University of California. All rights reserved.
> */
>
> /*
> * Changes and additions relating to SLiRP
> * Copyright (c) 1995 Danny Gasparovski.
> - *
> - * Please read the file COPYRIGHT for the
> - * terms and conditions of the copyright.
> */
>
> #include "slirp.h"
> diff --git a/slirp/src/udp6.c b/slirp/src/udp6.c
> index be5cba1f54..bfcc7ec6fa 100644
> --- a/slirp/src/udp6.c
> +++ b/slirp/src/udp6.c
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * Copyright (c) 2013
> * Guillaume Subiron
> diff --git a/slirp/src/util.c b/slirp/src/util.c
> index 5ec2fa87ab..d1f7811adf 100644
> --- a/slirp/src/util.c
> +++ b/slirp/src/util.c
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * util.c (mostly based on QEMU os-win32.c)
> *
> @@ -6,24 +7,6 @@
> *
> * QEMU library functions for win32 which are shared between QEMU and
> * the QEMU tools.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> */
> #include "util.h"
>
> diff --git a/slirp/src/vmstate.c b/slirp/src/vmstate.c
> index 4d08b47c61..f1c9311743 100644
> --- a/slirp/src/vmstate.c
> +++ b/slirp/src/vmstate.c
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: BSD-3-Clause */
> /*
> * VMState interpreter
> *
> @@ -5,9 +6,6 @@
> *
> * Authors:
> * Juan Quintela <quint...@redhat.com>
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2 or later.
> - * See the COPYING file in the top-level directory.
> */
> #include <assert.h>
> #include <errno.h>
>
