forked from osmocom/wireshark
4ce4e3a41e
* use grep -c instead of a grep/wc combo; * use cmp instead of diff, since we're only interested in whether the files are identical; * remove the temporary file if it's the same as the existing one. Change-Id: If61c5675535c483b9dc2aee179d7be58c7bd6e4f Reviewed-on: https://code.wireshark.org/review/2894 Reviewed-by: Evan Huus <eapache@gmail.com> Reviewed-by: Anders Broman <a.broman58@gmail.com>
147 lines
4 KiB
Bash
Executable file
147 lines
4 KiB
Bash
Executable file
#! /bin/sh
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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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files=''
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for f in "$@"
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do
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# This won't work if any filenames contain spaces.
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# However, this script is called by make, which doesn't support
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# spaces either.
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if [ -f "$f" ]
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then
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files="$files $f"
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else
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files="$files $srcdir/$f"
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fi
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done
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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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#include "moduleinfo.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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#ifndef ENABLE_STATIC
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WS_DLL_PUBLIC_DEF const gchar version[] = VERSION;
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/* Start the functions we need for the plugin stuff */
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WS_DLL_PUBLIC_DEF 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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grep '^proto_register_[a-z_0-9A-Z]* *(' $files 2>/dev/null | grep -v ';' \
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| sed -e 's/^.*://' -e 's/^\([a-z_0-9A-Z]*\).*/ {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
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grep '^void proto_register_[a-z_0-9A-Z]* *(' $files 2>/dev/null | grep -v ';' \
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| 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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grep '^proto_register_[a-z_0-9A-Z]* *(' $files 2>/dev/null | grep -v ';' \
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| 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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grep '^void proto_register_[a-z_0-9A-Z]* *(' $files 2>/dev/null | grep -v ';' \
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| 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_DEF void
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plugin_reg_handoff(void)
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{
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EOF
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grep '^proto_reg_handoff_[a-z_0-9A-Z]* *(' $files 2>/dev/null | grep -v ';' \
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| sed -e 's/^.*://' -e 's/^\([a-z_0-9A-Z]*\).*/ {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
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grep '^void proto_reg_handoff_[a-z_0-9A-Z]* *(' $files 2>/dev/null | grep -v ';' \
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| 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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grep '^proto_reg_handoff_[a-z_0-9A-Z]* *(' $files 2>/dev/null | grep -v ';' \
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| 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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grep '^void proto_reg_handoff_[a-z_0-9A-Z]* *(' $files 2>/dev/null | grep -v ';' \
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| 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 -c RA_REGISTER ${outfile}-tmp`
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handoff_regs=`grep -c RA_HANDOFF ${outfile}-tmp`
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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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if cmp -s ${outfile}-tmp ${outfile}
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then
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rm ${outfile}-tmp
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else
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mv ${outfile}-tmp ${outfile}
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fi
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