lsof-linux/Customize at devel · lsof-org/lsof-linux · GitHub

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#!/bin/sh

# $Id: Customize,v 1.9 2005/05/11 13:02:18 abe Exp $

# Customize: customize dialect's machine.h header file.

# Allows easy modification of some important compile-time definitions for

# lsof, made in the dialect's machine.h header file, including:

# HASSECURITY the security option

# HASNOSOCKSECURITY

# the socket oberalization of HASSECURITY

# HASDCACHE enabling/disabling the device cache file

# (Note: changing the device cache file option isn't

# offered when machine.h contains NEVER_HASDCACHE

# anywhere, including in a comment.)

# HASENVDC enabling/disabling device cache path from environment

# HASKERNIDCK enabling/disabling the kernel identity check

# (not done for some dialects)

# HASPERSDC enabling/disabling personal device cache path

# construction

# HASPERSDCPATH enabling/disabling additional personal device cache

# path component

# HASSYSDC enabling/disabling system-wide device cache file path

# HASXOPT_ROOT enabling/disabling root use of the -X option

# WARNDEVACCESS enabling inaccessible /dev node warnings

# (Note: changing the inaccessible /dev/node warning

# option isn't offered when machine.h contains

# NEVER_WARNDEVACCESS anywhere, including in a

# comment.)

# WARNINGSTATE enable/disabling default warning message state

# Usage: Customize [dialect_directory]

# where: dialect_directory (optional) is the directory in which the dialect's

# dialect's sources, Makefile and scripts are found

OLD=machine.h

NEW=new_machine.h

# Save optional dialect directory.

if test $# -eq 1

then

DialDir=$1

else

DialDir=""

# Establish trap and stty handling.

ISIG=":"

trap 'rm -f $NEW; $ISIG; exit 1' 1 2 3 15

stty -a 2>&1 | grep isig > /dev/null

if test $? -eq 0

then

stty -a 2>&1 | egrep -e -isig > /dev/null

if test $? -eq 0

then

ISIG="stty -isig"

stty isig

# Decide how to use echo.

ECHO=`echo -n ""`

if test "X$ECHO" = "X-n "

then

EC="\c"

EO=""

else

EC=""

EO="-n"

# Decide how to use tail(1).

TMP1=`tail -n 1 $0 2> /dev/null`

if test $? -eq 0 -a "X$TMP1" = "X#LAST_LINE"

then

TA="-n 1"

else

TA="-1"

# Display the introduction and basic explanation.

cat << .CAT_MARK

You may now customize the machine.h header file for this UNIX

dialect. The customizations will take effect when you compile

lsof. You may also choose to skip customization and proceed to

the compilation of lsof.

If you don't know if you need to customize or want to know more

about what you can customize, consult the 00DCACHE, 00FAQ, 00PORTING,

and 00README files of the lsof distribution. You might also find

it helpful to examine the machine.h header file for the dialect

you're customizing.

You don't need to use this procedure to customize lsof; you can

edit the machine.h header file directly. If you later decide you

want to use this procedure to customize machine.h, execute the

./Customize script.

.CAT_MARK

END=0

while test $END -eq 0

echo ""

echo $EO "Do you want to customize (y|n) [y]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xn" -o "X$ANS" = "XN"

then

exit 0

if test "X$ANS" = "Xy" -o "X$ANS" = "XY" -o "X$ANS" = "X"

then

echo ""

echo "Customizing ..."

END=1

else

echo ""

echo "Please answer y|n [y]."

done

# See if $OLD exists.

if test ! -r $OLD

then

echo ""

echo "FATAL: The file \"$OLD\" doesn't exist. Customization can't"

echo "continue without it."

echo ""

echo "Did you run the Configure script?"

echo ""

echo "Customize quits."

echo ""

exit 1

# See if $NEW exists.

if test -r $NEW

then

echo ""

echo "====================================================================="

echo ""

echo "WARNING: \"$NEW\" exists. Customization will replace it."

END=0

while test $END -eq 0

echo ""

echo $EO "Do you want to remove $NEW (y|n) [y]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY" -o "X$ANS" = "X"

then

echo ""

echo "Removing $NEW"

echo ""

rm -f $NEW

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN"

then

echo ""

echo "FATAL: Customize quits; it must be able to create \"$NEW\"."

echo ""

exit 1

else

echo ""

echo "Please answer y|n [y]."

done

# Process HASSECURITY.

cat << .CAT_MARK

=====================================================================

When HASSECURITY is enabled, only the root user may use lsof to

examine all open files; other users may examine only the files

belonging to the real user ID of their lsof process. If

HASNOSOCKSECURITY is also defined, anyone may list anyone else's

open socket files, provided their listing is selected with the "-i"

option.

When HASSECURITY is disabled, anyone may use lsof to examine all

open files.

.CAT_MARK

grep HASSECURITY $OLD | tail $TA | egrep "^#define" > /dev/null

if test $? -eq 0

then

echo "HASSECURITY is enabled."

NSEC=1

else

echo "HASSECURITY is disabled."

NSEC=0

END=0

while test $END -eq 0

echo ""

if test $NSEC -eq 1

then

echo $EO "Disable HASSECURITY (y|n) [n]? $EC"

else

echo $EO "Enable HASSECURITY (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

echo ""

if test $NSEC -eq 1

then

NSEC=0

echo "HASSECURITY will be disabled."

else

NSEC=1

echo "HASSECURITY will be enabled."

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN" -o "X$ANS" = "X"

then

echo ""

echo "HASSECURITY will not be changed."

END=1

else

echo ""

echo "Please answer y|n [n]."

done

# If HASSECURITY is enabled, see if HASNOSOCKSECURITY should also be defined.

if test $NSEC -eq 1

then

cat << .CAT_MARK

====================================================================

When HASSECURITY is enabled, you may also define HASNOSOCKSECURITY.

When both are defined, no one but root may list all of anyone else's

open files -- only their own open files -- but anyone may list

anyone else's open socket files.

This option is useful with ntop (http://www.ntop.org).

.CAT_MARK

grep HASNOSOCKSECURITY $OLD | tail $TA | egrep "^#define" > /dev/null

if test $? -eq 0

then

echo "HASNOSOCKSECURITY is enabled."

SOCKSEC=1

else

echo "HASNOSOCKSECURITY is disabled."

SOCKSEC=0

END=0

while test $END -eq 0

echo ""

if test $SOCKSEC -eq 1

then

echo $EO "Disable HASNOSOCKSECURITY (y|n) [n]? $EC"

else

echo $EO "Enable HASNOSOCKSECURITY (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

echo ""

if test $SOCKSEC -eq 1

then

SOCKSEC=0

echo "HASNOSOCKSECURITY will be disabled."

else

SOCKSEC=1

echo "HASNOSOCKSECURITY will be enabled."

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN" -o "X$ANS" = "X"

then

echo ""

echo "HASNOSOCKSECURITY will not be changed."

END=1

else

echo ""

echo "Please answer y|n [n]."

done

else

SOCKSEC=0

# Process WARNINGSTATE.

cat << .CAT_MARK

=====================================================================

When WARNINGSTATE is enabled, lsof will will issue whatever warning

messages it finds necessary. When WARNINGSTATE is disabled, lsof

will issue no warning messages. For individual uses of lsof, -w

disables warning state and +w enables it.

.CAT_MARK

grep WARNINGSTATE $OLD | tail $TA | egrep "^#define" > /dev/null

if test $? -eq 0

then

echo "WARNINGSTATE is disabled."

WST=0

else

echo "WARNINGSTATE is enabled."

WST=1

END=0

NWST=$WST

while test $END -eq 0

echo ""

if test $NWST -eq 0

then

echo $EO "Enable WARNINGSTATE? (y|n) [n]? $EC"

else

echo $EO "Disable WARNINGSTATE? (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

echo ""

if test $NWST -eq 0

then

echo "WARNINGSTATE will be enabled."

NWST=1

else

echo "WARNINGSTATE will be disabled."

NWST=0

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN" -o "X$ANS" = "X"

then

echo ""

echo "WARNINGSTATE will not be changed."

END=1

else

echo ""

echo "Please answer y|n [n]."

done

# Process WARNDEVACCESS, unless the dialect's machine.h header file contains

# NEVER_WARNDEVACCESS.

grep NEVER_WARNDEVACCESS $OLD > /dev/null

if test $? -eq 0

then

NEVERWDA=1

NWDA=0

else

NEVERWDA=0

cat << .CAT_MARK

=====================================================================

When WARNDEVACCESS is enabled, lsof will issue warning messages

when it can't access nodes in /dev (or /devices), subject to the

default or explicit (-w) WARNINGSTATE.

When WARNDEVACCESS is disabled, lsof will silently skip nodes in

/dev (or /devices) that it can't access.

.CAT_MARK

grep WARNDEVACCESS $OLD | tail $TA | egrep "^#define" > /dev/null

if test $? -eq 0

then

echo "WARNDEVACCESS is enabled."

WDA=1

else

echo "WARNDEVACCESS is disabled."

WDA=0

END=0

NWDA=$WDA

while test $END -eq 0

echo ""

if test $NWDA -eq 1

then

echo $EO "Disable WARNDEVACCESS (y|n) [n]? $EC"

else

echo $EO "Enable WARNDEVACCESS (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

echo ""

if test $NWDA -eq 1

then

echo "WARNDEVACCESS will be disabled."

NWDA=0

else

echo "WARNDEVACCESS will be enabled."

NWDA=1

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN" -o "X$ANS" = "X"

then

echo ""

echo "WARNDEVACCESS will not be changed."

END=1

else

echo ""

echo "Please answer y|n [n]."

done

# Process HASDCACHE, unless the dialect's machine.h header file contains

# NEVER_HASDCACHE.

ENVV=""

ENVN=0

PDCV=""

PDCN=0

PDCPV=""

PDCPN=0

SDCV=""

SDCN=0

grep NEVER_HASDCACHE $OLD > /dev/null

if test $? -eq 0

then

NEVERDC=1

CDC=0

DC=0

NDC=0

else

NEVERDC=0

cat << .CAT_MARK

=====================================================================

When HASDCACHE is enabled, lsof will write a device cache file that

contains information about the nodes in /dev (or /devices). The

options HASENVDC, HASPERSDC, HASPERSDCPATH, and HASSYSDC define

the device cache file path.

When HASDCACHE is disabled, lsof won't write a device cache file.

Consult the 00DCACHE and 00FAQ files of the lsof distribution for

more information.

.CAT_MARK

grep HASDCACHE $OLD | tail $TA | egrep "^#define" > /dev/null

if test $? -eq 0

then

echo "HASDCACHE is enabled."

DC=1

else

echo "HASDCACHE is disabled."

DC=0

END=0

NDC=$DC

while test $END -eq 0

echo ""

if test $NDC -eq 1

then

echo $EO "Disable HASDCACHE (y|n) [n]? $EC"

else

echo $EO "Enable HASDCACHE (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

echo ""

if test $NDC -eq 1

then

echo "HASDCACHE will be disabled."

NDC=0

else

echo "HASDCACHE will be enabled."

NDC=1

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN" -o "X$ANS" = "X"

then

echo ""

echo "HASDCACHE will not be changed."

END=1

else

echo ""

echo "Please answer y|n [n]."

done

# See if other device cache options need to be declared.

if test $DC -eq 1 -a $NDC -eq 1

then

cat << .CAT_MARK

=====================================================================

You have decided that HASDCACHE should be defined. There are other

definitions associated with HASDCACHE that specify options for the

formation of the device cache file path. You may change them.

Consult the 00DCACHE and 00FAQ files of the lsof distribution for

more information.

The current path options are:

.CAT_MARK

grep HASENVDC $OLD | tail $TA | egrep "^#define"

egrep "HASPERSDC$|HASPERSDC[ ]" $OLD | tail $TA | egrep "^#define"

grep HASPERSDCPATH $OLD | tail $TA | egrep "^#define"

grep HASSYSDC $OLD | tail $TA | egrep "^#define"

END=0

while test $END -eq 0

echo ""

echo $EO "Do you want to change path options (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

CDC=1

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN"

then

CDC=0

END=1

else

if test "X$ANS" = "X"

then

echo ""

echo "The path options will not be changed."

CDC=0

END=1

else

echo ""

echo "Please answer y|n [n]."

done

else

CDC=0

if test $ $NDC -eq 1 -a $DC -eq 0 $ -o $ $DC -eq 1 -a $CDC -eq 1 $

then

cat << .CAT_MARK

=====================================================================

You may specify for HASENVDC the name of the environment variable

from which lsof should take the device cache file path for non-root

users. Press ENTER to use the current value of HASENVDC:

.CAT_MARK

echo $EO " $EC"

TMP1=`grep HASENVDC $OLD | tail $TA | egrep "^#define"`

if test "X$TMP1" != "X"

then

TMP1=`echo "$TMP1" | sed 's/^#define[ ]HASENVDC[ ]"$[^"]*$".*$/\1/'`

echo "$TMP1"

else

echo "no current HASENVDC value"

END=0

GV=0

while test $END -eq 0

echo ""

echo $EO "Do you want to define a name for HASENVDC (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xn" -o "X$ANS" = "XN"

then

ENVV=""

END=1

else

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

GV=1

END=1

else

if test "X$ANS" = "X"

then

echo ""

echo "HASENVDC will not be changed."

ENVV=$TMP1

END=1

else

echo ""

echo "Please answer y|n [n]."

done

if test $GV -eq 1

then

echo ""

echo $EO "Please enter the HASENVDC name (no quotes): $EC"

read TMP1 EXCESS

ENVV=`echo $TMP1 | sed 's/^\"//' | sed 's/\"$//'`

if test "X$ENVV" = "X"

then

ENVN=1

cat << .CAT_MARK

=====================================================================

HASPERSDC is a format that specifies how the personal device cache

path is constructed. Consult the 00DCACHE and 00FAQ files of the

lsof distribution for information on the conversions supported in

HASPERSDC. Press ENTER to use the curent HASPERSDC format:

.CAT_MARK

echo $EO " $EC"

TMP1=`egrep "HASPERSDC$|HASPERSDC[ ]" $OLD | tail $TA | egrep "^#define"`

if test "X$TMP1" != "X"

then

TMP1=`echo "$TMP1" | sed 's/^#define[ ]HASPERSDC[ ]"$[^"]*$".*$/\1/'`

echo "$TMP1"

else

echo "no current HASPERSDC format"

END=0

GV=0

while test $END -eq 0

echo ""

echo $EO "Do you want to define a format for HASPERSDC (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xn" -o "X$ANS" = "XN"

then

END=1

else

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

GV=1

END=1

else

if test "X$ANS" = "X"

then

echo ""

echo "HASPERSDC will not be changed."

PDCV=$TMP1

END=1

else

echo ""

echo "Please answer y|n [n]."

done

if test $GV -eq 1

then

echo ""

echo $EO "Please enter the HASPERSDC format (no quotes): $EC"

read TMP1 EXCESS

PDCV=`echo $TMP1 | sed 's/^\"//' | sed 's/\"$//'`

if test "X$PDCV" = "X"

then

PDCN=1

cat << .CAT_MARK

=====================================================================

Specify for HASPERSDCPATH the name of the environment variable from

which lsof should take a path name component to insert at the %p

conversion in the HASPERSDC format.

Consult the 00FAQ and 00DCACHE files of the lsof distribution for

more information on HASPERSDCPATH usage.

Press ENTER to use the current value for HASPERSDCPATH:

.CAT_MARK

echo $EO " $EC"

TMP1=`grep HASPERSDCPATH $OLD | tail $TA | egrep "^#define"`

if test "X$TMP1" != "X"

then

TMP1=`echo "$TMP1" | sed 's/^#define[ ]HASPERSDCPATH[ ]"$[^"]*$".*$/\1/'`

echo "$TMP1"

else

echo "no current HASPERSDCPATH value"

END=0

GV=0

while test $END -eq 0

echo ""

echo $EO "Do you want to change HASPERSDCPATH (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xn" -o "X$ANS" = "XN" -o "X$ANS" = "X"

then

echo ""

echo "HASPERSDCPATH will not be changed."

PDCPV=$TMP1

END=1

else

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

GV=1

END=1

else

echo ""

echo "Please answer y|n [n]."

done

if test $GV -eq 1

then

echo ""

echo $EO "Please enter the HASPERSDCPATH name (no quotes): $EC"

read TMP1 EXCESS

PDCPV=`echo $TMP1 | sed 's/^\"//' | sed 's/\"$//'`

if test "X$PDCPV" = "X"

then

PDCPN=1

cat << .CAT_MARK

=====================================================================

Specify for HASSYSDC the system-wide device cache file path. Press

ENTER to use the current HASSYSDC value:

.CAT_MARK

echo $EO " $EC"

TMP1=`grep HASSYSDC $OLD | tail $TA | egrep "^#define"`

if test "X$TMP1" != "X"

then

TMP1=`echo "$TMP1" | sed 's/^#define[ ]HASSYSDC[ ]"$[^"]*$".*$/\1/'`

echo "$TMP1"

else

echo "no current HASSYSDC value"

END=0

GV=0

while test $END -eq 0

echo ""

echo $EO "Do you want to define a system-device path (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xn" -o "X$ANS" = "XN"

then

END=1

else

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

GV=1

END=1

else

if test "X$ANS" = "X"

then

echo ""

echo "No HASSYSDC change will be made."

SDCV=$TMP1

END=1

else

echo ""

echo "Please answer y|n [n]."

done

if test $GV -eq 1

then

echo ""

echo $EO "Please enter the system-wide path (no quotes): $EC"

read TMP1 EXCESS

SDCV=`echo $TMP1 | sed 's/^\"//' | sed 's/\"$//'`

if test "X$SDCV" = "X"

then

SDCN=1

# If HASXOPT is defined, and HASXOPT_ROOT is mentioned,

# ask about changing HASXOPT_ROOT.

HXRC=0

grep HASXOPT $OLD | tail $TA | egrep "^#define" > /dev/null

if test $? -eq 0

then

grep HASXOPT_ROOT $OLD > /dev/null

if test $? -eq 0

then

cat << .CAT_MARK

=====================================================================

HASXOPT is defined. If the dialect for which you are customizing

appears in the following list, you may want to change the definition

of HASXOPT_ROOT to restrict the use of the X option to lsof processes

whose real user ID is root, or enable use of it by all user IDs.

AIX the -X option enables the risky operation of letting

lsof read library entry structures with readx().

If HASXOPT_ROOT is defined, only processes whose

real user ID is root will be allowed to use -X.

If HASXOPT_ROOT is undefined, any process will be

allowed to use -X. Consult the 00FAQ file of the

lsof distribution for more information on why

readx() may be risky.

.CAT_MARK

grep HASXOPT_ROOT $OLD | tail $TA | egrep "^#define" > /dev/null

if test $? -eq 0

then

echo "HASXOPT_ROOT is defined."

HXR="undefine"

HXRS=1

else

echo "HASXOPT_ROOT is not defined."

HXR="define"

HXRS=0

END=0

while test $END -eq 0

echo ""

echo $EO "Do you want to $HXR HASXOPT_ROOT (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

HXRA=1

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN" -o "X$ANS" = "X"

then

echo ""

echo "HASXOPT_ROOT will not be changed."

HXRA=0

END=1

else

echo ""

echo "Please answer y|n [n]."

done

if test $HXRA -eq 1

then

HXRC=1

# Process HASKERNIDCK. Skip processing for selected dialect directories.

case $DialDir in

linux/proc)

NIDCK=0

;;

cat << .CAT_MARK

=====================================================================

When HASKERNIDCK is enabled, lsof compares the identity of the

kernel where it was built to the identity of the kernel where it

is running. This check can detect an lsof executable inappropriate

for the system on which it is being run.

The kernel identity check can take considerable time on some UNIX

dialects -- e.g., AIX -- so there may be occasions when it is

desirable to disable it, in spite of the increased risk of using

an inappropriate lsof executable.

.CAT_MARK

grep HASKERNIDCK $OLD | tail $TA | grep "^#define" > /dev/null

if test $? -eq 0

then

echo "HASKERNIDCK is enabled."

IDCK=1

else

echo "HASKERNIDCK is disabled."

IDCK=0

END=0

NIDCK=$IDCK

while test $END -eq 0

echo ""

if test $NIDCK -eq 1

then

echo $EO "Disable HASKERNIDCK (y|n) [n]? $EC"

else

echo $EO "Enable HASKERNIDCK (y|n) [n]? $EC"

read ANS EXCESS

if test "X$ANS" = "Xy" -o "X$ANS" = "XY"

then

echo ""

if test $NIDCK -eq 1

then

NIDCK=0

echo "HASKERNIDCK will be disabled."

else

NIDCK=1

echo "HASKERNIDCK will be enabled."

END=1

else

if test "X$ANS" = "Xn" -o "X$ANS" = "XN" -o "X$ANS" = "X"

then

echo ""

echo "HASKERNIDCK will not be changed."

END=1

NIDCK=$IDCK

else

echo ""

echo "Please answer y|n [n]."

done

;;

esac

# Initialize new machine.h.

rm -f $NEW

cp $OLD $NEW

chmod 0644 $NEW

echo "" >> $NEW

echo "/*" >> $NEW

echo $EO " * Added by Customize on $EC" >> $NEW

date >> $NEW

echo " */" >> $NEW

echo "" >> $NEW

# Change HASSECURITY and HASNOSOCKSECURITY, as required.

echo "#undef HASSECURITY" >> $NEW

echo "#undef HASNOSOCKSECURITY" >> $NEW

if test $NSEC -eq 1

then

echo "#define HASSECURITY 1" >> $NEW

if test $SOCKSEC -eq 1

then

echo "#define HASNOSOCKSECURITY 1" >> $NEW

# Change WARNDEVACCESS, as required.

if test $NEVERWDA -eq 0

then

echo "#undef WARNDEVACCESS" >> $NEW

if test $NWDA -eq 1

then

echo "#define WARNDEVACCESS 1" >> $NEW

# Change WARNINGSTATE, as required.

echo "#undef WARNINGSTATE" >> $NEW

if test $NWST -eq 0

then

View remainder of file in raw view

lsof-linux/Customize at devel · lsof-org/lsof-linux · GitHub

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