Make initdb safe against using

a) mismatching backend program, by checking --version output
b) mismatching bki files, by putting a version-identifying comment atop
   those files.
This commit is contained in:
Peter Eisentraut 2000-10-28 22:14:14 +00:00
parent c44323176e
commit 3280cba2ac
3 changed files with 75 additions and 39 deletions

View File

@ -2,7 +2,7 @@
#
# Makefile for catalog
#
# $Header: /cvsroot/pgsql/src/backend/catalog/Makefile,v 1.31 2000/10/24 01:38:23 tgl Exp $
# $Header: /cvsroot/pgsql/src/backend/catalog/Makefile,v 1.32 2000/10/28 22:14:14 petere Exp $
#
#-------------------------------------------------------------------------
@ -39,11 +39,11 @@ pg_includes := $(sort -I$(top_srcdir)/src/include -I$(top_builddir)/src/include)
global.bki global.description: genbki.sh $(GLOBAL_BKI_SRCS) $(top_srcdir)/src/include/catalog/indexing.h \
$(top_srcdir)/src/include/postgres_ext.h $(top_builddir)/src/include/config.h
CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o global $(pg_includes) $(GLOBAL_BKI_SRCS)
CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o global $(pg_includes) $(GLOBAL_BKI_SRCS) --set-version=$(VERSION)
template1.bki template1.description: genbki.sh $(TEMPLATE1_BKI_SRCS) \
$(top_srcdir)/src/include/postgres_ext.h $(top_builddir)/src/include/config.h
CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o template1 $(pg_includes) $(TEMPLATE1_BKI_SRCS)
CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o template1 $(pg_includes) $(TEMPLATE1_BKI_SRCS) --set-version=$(VERSION)
.PHONY: install-bki
install-bki: $(BKIFILES) installdirs

View File

@ -10,7 +10,7 @@
#
#
# IDENTIFICATION
# $Header: /cvsroot/pgsql/src/backend/catalog/Attic/genbki.sh,v 1.17 2000/10/20 21:03:42 petere Exp $
# $Header: /cvsroot/pgsql/src/backend/catalog/Attic/genbki.sh,v 1.18 2000/10/28 22:14:14 petere Exp $
#
# NOTES
# non-essential whitespace is removed from the generated file.
@ -28,6 +28,7 @@ BKIOPTS=
INCLUDE_DIRS=
OUTPUT_PREFIX=
INFILES=
major_version=
#
# Process command line switches.
@ -54,15 +55,20 @@ do
-o*)
OUTPUT_PREFIX=`echo $1 | sed -e 's/^-o//'`
;;
--set-version=*)
arg=`expr x"$1" : x"--set-version=\(.*\)"`
major_version=`expr x"$arg" : x'\([0-9][0-9]*\.[0-9][0-9]*\)'`
;;
--help)
echo "$CMDNAME generates system catalog bootstrapping files."
echo
echo "Usage:"
echo " $CMDNAME [ -D define [...] ] [ -I dir ] [ -o prefix ]"
echo " $CMDNAME [ -D define [...] ] [ -I dir ] --set-version=VERSION -o prefix files..."
echo
echo "Options:"
echo " -I path to postgres_ext.h and config.h files"
echo " -o prefix of output files"
echo " --set-version PostgreSQL version number for initdb cross-check"
echo
echo "The environment variables CPP and AWK determine which C"
echo "preprocessor and Awk program to use. The defaults are"
@ -97,6 +103,10 @@ if [ x"$INCLUDE_DIRS" = x"" ] ; then
exit 1
fi
if [ x"$major_version" = x"" ] ; then
echo "$CMDNAME: invalid or no version number specified" 1>&2
exit 1
fi
if [ x"$TMPDIR" = x"" ] ; then
TMPDIR=/tmp
@ -105,12 +115,7 @@ fi
TMPFILE="$TMPDIR/genbkitmp.c"
trap "rm -f $TMPFILE" 0 1 2 3 15
# clear output files
> ${OUTPUT_PREFIX}.bki
> ${OUTPUT_PREFIX}.description
trap "rm -f $TMPFILE ${OUTPUT_PREFIX}.bki.$$ ${OUTPUT_PREFIX}.description.$$" 0 1 2 3 15
# Get NAMEDATALEN from postgres_ext.h
@ -136,6 +141,8 @@ done
INDEXMAXKEYS2=`expr $INDEXMAXKEYS '*' 2` || exit
INDEXMAXKEYS4=`expr $INDEXMAXKEYS '*' 4` || exit
touch ${OUTPUT_PREFIX}.description.$$
# ----------------
# strip comments and trash from .h before we generate
# the .bki file...
@ -360,11 +367,15 @@ END {
reln_open = 0;
}
}
' "descriptionfile=${OUTPUT_PREFIX}.description" > $TMPFILE || exit
' "descriptionfile=${OUTPUT_PREFIX}.description.$$" > $TMPFILE || exit
echo "# PostgreSQL $major_version" >${OUTPUT_PREFIX}.bki.$$
$CPP $BKIOPTS $TMPFILE | \
sed -e '/^[ ]*$/d' \
-e 's/[ ][ ]*/ /g' > ${OUTPUT_PREFIX}.bki || exit
-e 's/[ ][ ]*/ /g' >>${OUTPUT_PREFIX}.bki.$$ || exit
mv ${OUTPUT_PREFIX}.bki.$$ ${OUTPUT_PREFIX}.bki || exit
mv ${OUTPUT_PREFIX}.description.$$ ${OUTPUT_PREFIX}.description || exit
exit 0

View File

@ -1,17 +1,17 @@
#! /bin/sh
#-------------------------------------------------------------------------
#
# initdb creates (initializes) a Postgres database cluster (site,
# initdb creates (initializes) a PostgreSQL database cluster (site,
# instance, installation, whatever). A database cluster is a
# collection of Postgres databases all managed by the same postmaster.
# collection of PostgreSQL databases all managed by the same postmaster.
#
# To create the database cluster, we create the directory that contains
# all its data, create the files that hold the global tables, create
# a few other control files for it, and create one database: the
# template database.
#
# The template database is an ordinary Postgres database. Its data
# never changes, though. It exists to make it easy for Postgres to
# The template database is an ordinary PostgreSQL database. Its data
# never changes, though. It exists to make it easy for PostgreSQL to
# create other databases -- it just copies.
#
# Optionally, we can skip creating the complete database cluster and
@ -23,7 +23,7 @@
#
# Copyright (c) 1994, Regents of the University of California
#
# $Header: /cvsroot/pgsql/src/bin/initdb/Attic/initdb.sh,v 1.106 2000/10/22 17:55:45 pjw Exp $
# $Header: /cvsroot/pgsql/src/bin/initdb/Attic/initdb.sh,v 1.107 2000/10/28 22:14:14 petere Exp $
#
#-------------------------------------------------------------------------
@ -85,7 +85,7 @@ fi
if echo "$0" | grep '/' > /dev/null 2>&1
then
# explicit dir name given
PGPATH=`echo $0 | sed 's,/[^/]*$,,'` # (dirname command is not portable)
self_path=`echo $0 | sed 's,/[^/]*$,,'` # (dirname command is not portable)
else
# look for it in PATH ('which' command is not portable)
for dir in `echo "$PATH" | sed 's/:/ /g'`
@ -94,36 +94,52 @@ else
[ -z "$dir" ] && dir='.'
if [ -f "$dir/$CMDNAME" ]
then
PGPATH="$dir"
self_path="$dir"
break
fi
done
fi
if [ x"$PGPATH" = x"" ] ; then
PGPATH=$bindir
# Check for right version of backend. First we check for an
# executable in the same directory is this initdb script (presuming
# the above code worked). Then we fall back to the hard-wired bindir.
# We do it in this order because during upgrades users might move
# their trees to backup places, so $bindir might be inaccurate.
if [ x"$self_path" != x"" ] \
&& [ -x "$self_path/postgres" ] \
&& [ x"`$self_path/postgres --version 2>/dev/null`" == x"postgres (PostgreSQL) $VERSION" ]
then
PGPATH=$self_path
elif [ -x "$bindir/postgres" ]; then
if [ x"`$bindir/postgres --version 2>/dev/null`" == x"postgres (PostgreSQL) $VERSION" ]
then
PGPATH=$bindir
else
echo "The program '$bindir/postgres' needed by $CMDNAME does not belong to"
echo "PostgreSQL version $VERSION. Check your installation."
exit 1
fi
else
echo "The program 'postgres' is needed by $CMDNAME but was not found in"
echo "the directory '$bindir'. Check your installation."
exit 1
fi
# Check if needed programs actually exist in path
for prog in postgres pg_id
do
if [ ! -x "$PGPATH/$prog" ]
then
echo "The program \`$prog' needed by $CMDNAME could not be found. It was"
echo "expected at:"
echo " $PGPATH/$prog"
echo "If this is not the correct directory, please start $CMDNAME"
echo "with a full search path. Otherwise make sure that the program"
echo "was installed successfully."
exit 1
fi
done
# Now we can assume that 'pg_id' belongs to the same version as the
# verified 'postgres' in the same directory.
if [ ! -x "$PGPATH/pg_id" ]; then
echo "The program 'pg_id' is needed by $CMDNAME but was not found in"
echo "the directory '$PGPATH'. Check your installation."
exit 1
fi
# Gotta wait for pg_id existence check above
EffectiveUser=`$PGPATH/pg_id -n -u`
if [ -z "$EffectiveUser" ]; then
echo "Could not determine current user name. You are really hosed."
echo "$CMDNAME: could not determine current user name"
exit 1
fi
@ -275,7 +291,7 @@ fi
if [ "$MULTIBYTE" ]
then
MULTIBYTEID=`$PGPATH/pg_encoding $MULTIBYTE 2> /dev/null`
MULTIBYTEID=`$PGPATH/pg_encoding $MULTIBYTE`
if [ "$?" -ne 0 ]
then
echo "$CMDNAME: pg_encoding failed"
@ -354,6 +370,15 @@ do
fi
done
for file in "$TEMPLATE1_BKI" "$GLOBAL_BKI"; do
if [ x"`sed 1q $file`" != x"# PostgreSQL $short_version" ]; then
echo "The input file '$file' needed by $CMDNAME does not"
echo "belong to PostgreSQL $VERSION. Check your installation or specify the"
echo "correct path using the -L option."
exit 1
fi
done
trap 'echo "Caught signal." ; exit_nicely' 1 2 3 15