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https://gitlab.com/libvirt/libvirt.git
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tools: Keep wireshark plugin registration code in git
In order to be able to dissect libvirt protocol the wireshark plugin needs to be registered. So far this plugin registration code was generated on every build using a script that was copied over from wireshark's tools/ directory. This is suboptimal, because the way that plugins register changes across wireshark releases. Therefore, let's keep the generated file in the git, put the command line used to generate the file into a comment and remove the script. This solution allows us to put different registration mechanism into one file (under #ifdef-s) and thus compile with wider range of wireshark releases. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Michal Privoznik
parent
b76f4dec37
commit
a87a75e579
1
.gitignore
vendored
1
.gitignore
vendored
@ -190,7 +190,6 @@
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/tools/virt-admin
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/tools/virt-*-validate
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/tools/virt-sanlock-cleanup
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/tools/wireshark/src/plugin.c
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/tools/wireshark/src/libvirt
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/update.log
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GPATH
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@ -444,9 +444,7 @@ uninstall-bash-completion:
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endif ! WITH_BASH_COMPLETION
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EXTRA_DIST += \
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wireshark/util/genxdrstub.pl \
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wireshark/util/make-dissector-reg
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EXTRA_DIST += wireshark/util/genxdrstub.pl
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if WITH_WIRESHARK_DISSECTOR
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@ -454,19 +452,14 @@ ws_plugin_LTLIBRARIES = wireshark/src/libvirt.la
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wireshark_src_libvirt_la_CFLAGS = \
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-I wireshark/src $(WIRESHARK_DISSECTOR_CFLAGS) $(XDR_CFLAGS)
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wireshark_src_libvirt_la_LDFLAGS = -avoid-version -module
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nodist_wireshark_src_libvirt_la_SOURCES = wireshark/src/plugin.c
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wireshark_src_libvirt_la_SOURCES = \
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wireshark/src/packet-libvirt.h \
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wireshark/src/packet-libvirt.c
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wireshark/src/packet-libvirt.c \
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wireshark/src/plugin.c
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wireshark/src/packet-libvirt.c: wireshark/src/packet-libvirt.h \
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wireshark/src/libvirt/protocol.h
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wireshark/src/plugin.c: wireshark/src/packet-libvirt.c
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$(AM_V_GEN)cd wireshark/src && \
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$(abs_top_srcdir)/tools/wireshark/util/make-dissector-reg \
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. plugin packet-libvirt.c
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WS_DISSECTOR_PROTO_FILES = \
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$(abs_top_srcdir)/src/remote/remote_protocol.x \
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$(abs_top_srcdir)/src/remote/qemu_protocol.x \
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@ -481,8 +474,6 @@ wireshark/src/libvirt/protocol.h: wireshark/util/genxdrstub.pl \
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$(PERL) $(abs_top_srcdir)/tools/wireshark/util/genxdrstub.pl \
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$(WS_DISSECTOR_PROTO_FILES)
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CLEANFILES += wireshark/src/plugin.c
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endif WITH_WIRESHARK_DISSECTOR
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if WITH_BSD_NSS
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45
tools/wireshark/src/plugin.c
Normal file
45
tools/wireshark/src/plugin.c
Normal file
@ -0,0 +1,45 @@
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/*
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* plugin.c: Wireshark's plugin registration
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*
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* The registration routines were generated using wireshark's
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* make-dissector-reg script (found under wirshark.git/tools/):
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*
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* libvirt.git/tools/wireshark/src $ \
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* /path/to/wireshark.git/tools/make-dissector-reg \
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* . plugin packet-libvirt.c
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*
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*/
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#include <config.h>
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#include <gmodule.h>
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/* plugins are DLLs */
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#define WS_BUILD_DLL
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#include <wireshark/ws_symbol_export.h>
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#include "packet-libvirt.h"
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/* In 1.12 wireshark WS_DLL_PUBLIC_NOEXTERN was substitued with
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* WS_DLL_PUBLIC_DEF. See wireshark's commit
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* 5d87a8c46171f572568db5a47c093423482e342f for more info. */
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#ifndef WS_DLL_PUBLIC_NOEXTERN
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# define WS_DLL_PUBLIC_NOEXTERN WS_DLL_PUBLIC_DEF
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#endif
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#ifndef ENABLE_STATIC
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WS_DLL_PUBLIC_NOEXTERN const gchar version[] = VERSION;
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/* Start the functions we need for the plugin stuff */
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WS_DLL_PUBLIC_NOEXTERN void
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plugin_register(void)
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{
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proto_register_libvirt();
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}
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WS_DLL_PUBLIC_NOEXTERN void
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plugin_reg_handoff(void)
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{
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proto_reg_handoff_libvirt();
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}
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#endif
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@ -1,205 +0,0 @@
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#! /bin/sh
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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#
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# Copied from Wireshark(http://www.wireshark.org/)
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#
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# The first argument is the directory in which the source files live.
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#
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srcdir="$1"
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shift
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#
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# The second argument is either "plugin" or "dissectors"; if it's
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# "plugin", we build a plugin.c for a plugin, and if it's
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# "dissectors", we build a register.c for libwireshark.
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#
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registertype="$1"
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shift
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if [ "$registertype" = plugin ]
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then
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outfile="plugin.c"
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elif [ "$registertype" = dissectors ]
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then
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outfile="register.c"
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else
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echo "Unknown output type '$registertype'" 1>&2
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exit 1
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fi
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#
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# All subsequent arguments are the files to scan.
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#
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rm -f ${outfile}-tmp
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echo '/* Do not modify this file. */' >${outfile}-tmp
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echo '/* It is created automatically by the Makefile. */'>>${outfile}-tmp
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if [ "$registertype" = plugin ]
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then
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cat <<"EOF" >>${outfile}-tmp
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#include "config.h"
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#include <gmodule.h>
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/* plugins are DLLs */
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#define WS_BUILD_DLL
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#include "ws_symbol_export.h"
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/* In 1.12 wireshark WS_DLL_PUBLIC_NOEXTERN was substitued with
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* WS_DLL_PUBLIC_DEF. See wireshark's commit
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* 5d87a8c46171f572568db5a47c093423482e342f for more info. */
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#ifndef WS_DLL_PUBLIC_NOEXTERN
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# define WS_DLL_PUBLIC_NOEXTERN WS_DLL_PUBLIC_DEF
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#endif
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#ifndef ENABLE_STATIC
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WS_DLL_PUBLIC_NOEXTERN const gchar version[] = VERSION;
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/* Start the functions we need for the plugin stuff */
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WS_DLL_PUBLIC_NOEXTERN void
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plugin_register (void)
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{
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EOF
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#
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# Build code to call all the protocol registration routines.
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#
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for f in "$@"
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do
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if [ -f $f ]
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then
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srcfile=$f
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else
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srcfile=$srcdir/$f
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fi
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grep '^proto_register_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
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done | sed -e 's/^.*://' -e 's/^\([a-z_0-9A-Z]*\).*/ {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
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for f in "$@"
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do
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if [ -f $f ]
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then
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srcfile=$f
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else
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srcfile=$srcdir/$f
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fi
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grep '^void proto_register_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
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done | sed -e 's/^.*://' -e 's/^void \([a-z_0-9A-Z]*\).*/ {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
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else
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cat <<"EOF" >>${outfile}-tmp
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#include "register.h"
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void
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register_all_protocols(register_cb cb, gpointer client_data)
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{
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EOF
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#
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# Build code to call all the protocol registration routines.
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#
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for f in "$@"
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do
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if [ -f $f ]
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then
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srcfile=$f
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else
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srcfile=$srcdir/$f
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fi
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grep '^proto_register_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
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done | sed -e 's/^.*://' -e 's/^\([a-z_0-9A-Z]*\).*/ {extern void \1 (void); if(cb) (*cb)(RA_REGISTER, \"\1\", client_data); \1 ();}/' >>${outfile}-tmp
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for f in "$@"
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do
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if [ -f $f ]
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then
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srcfile=$f
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else
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srcfile=$srcdir/$f
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fi
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grep '^void proto_register_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
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done | sed -e 's/^.*://' -e 's/^void \([a-z_0-9A-Z]*\).*/ {extern void \1 (void); if(cb) (*cb)(RA_REGISTER, \"\1\", client_data); \1 ();}/' >>${outfile}-tmp
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fi
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echo '}' >>${outfile}-tmp
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#
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# Build code to call all the protocol handoff registration routines.
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#
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if [ "$registertype" = plugin ]
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then
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cat <<"EOF" >>${outfile}-tmp
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WS_DLL_PUBLIC_NOEXTERN void
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plugin_reg_handoff(void)
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{
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EOF
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for f in "$@"
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do
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if [ -f $f ]
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then
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srcfile=$f
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else
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srcfile=$srcdir/$f
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fi
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grep '^proto_reg_handoff_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
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done | sed -e 's/^.*://' -e 's/^\([a-z_0-9A-Z]*\).*/ {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
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for f in "$@"
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do
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if [ -f $f ]
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then
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srcfile=$f
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else
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srcfile=$srcdir/$f
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fi
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grep '^void proto_reg_handoff_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
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done | sed -e 's/^.*://' -e 's/^void \([a-z_0-9A-Z]*\).*/ {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
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else
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cat <<"EOF" >>${outfile}-tmp
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void
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register_all_protocol_handoffs(register_cb cb, gpointer client_data)
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{
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EOF
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for f in "$@"
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do
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if [ -f $f ]
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then
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srcfile=$f
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else
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srcfile=$srcdir/$f
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fi
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grep '^proto_reg_handoff_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
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done | sed -e 's/^.*://' -e 's/^\([a-z_0-9A-Z]*\).*/ {extern void \1 (void); if(cb) (*cb)(RA_HANDOFF, \"\1\", client_data); \1 ();}/' >>${outfile}-tmp
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for f in "$@"
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do
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if [ -f $f ]
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then
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srcfile=$f
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else
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srcfile=$srcdir/$f
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fi
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grep '^void proto_reg_handoff_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
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done | sed -e 's/^.*://' -e 's/^void \([a-z_0-9A-Z]*\).*/ {extern void \1 (void); if(cb) (*cb)(RA_HANDOFF, \"\1\", client_data); \1 ();}/' >>${outfile}-tmp
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fi
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echo '}' >>${outfile}-tmp
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if [ "$registertype" = plugin ]
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then
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echo '#endif' >>${outfile}-tmp
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else
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cat <<"EOF" >>${outfile}-tmp
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gulong register_count(void)
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{
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EOF
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proto_regs=`grep RA_REGISTER ${outfile}-tmp | wc -l`
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handoff_regs=`grep RA_HANDOFF ${outfile}-tmp | wc -l`
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echo " return $proto_regs + $handoff_regs;" >>${outfile}-tmp
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echo '}' >>${outfile}-tmp
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fi
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# Only overwrite outfile if it differs from newly generated file
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mv ${outfile}-tmp ${outfile}
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