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2002-12-23 Ben Elliston <bje@redhat.com>

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* config.guess (set_cc_for_build): Rework to do more secure tmp
	directory creation.  Remove temporary files and tmp directory on
	exit; remove redundant rm(1) and rmdir(1) commands throughout.
This commit is contained in:
Ben Elliston 2002-12-23 01:26:14 +00:00
parent 37209163a0
commit 0b4180adb1
2 changed files with 22 additions and 26 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2002-12-23 Ben Elliston <bje@redhat.com>
* config.guess (set_cc_for_build): Rework to do more secure tmp
directory creation. Remove temporary files and tmp directory on
exit; remove redundant rm(1) and rmdir(1) commands throughout.
2002-12-17 John David Anglin <dave@hiauly1.hia.nrc.ca> 2002-12-17 John David Anglin <dave@hiauly1.hia.nrc.ca>
* config.guess (hppa*): Remove tmpdir when CC_FOR_BUILD is set. * config.guess (hppa*): Remove tmpdir when CC_FOR_BUILD is set.

42
config.guess vendored
View File

@ -3,7 +3,7 @@
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
# 2000, 2001, 2002 Free Software Foundation, Inc. # 2000, 2001, 2002 Free Software Foundation, Inc.
timestamp='2002-12-17' timestamp='2002-12-23'
# This file is free software; you can redistribute it and/or modify it # This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by # under the terms of the GNU General Public License as published by
@ -98,14 +98,17 @@ trap 'exit 1' 1 2 15
# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still # Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
# use `HOST_CC' if defined, but it is deprecated. # use `HOST_CC' if defined, but it is deprecated.
# This shell variable is my proudest work .. or something. --bje # Portable tmp directory creation inspired by the Autoconf team.
set_cc_for_build='tmpdir=${TMPDIR-/tmp}/config-guess-$$ ; set_cc_for_build='
(old=`umask` && umask 077 && mkdir $tmpdir && umask $old && unset old) trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
|| (echo "$me: cannot create $tmpdir" >&2 && exit 1) ; trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
dummy=$tmpdir/dummy ; : ${TMPDIR=/tmp} ;
files="$dummy.c $dummy.o $dummy.rel $dummy" ; { tmp=`(umask 077 && mktemp -d -q "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
trap '"'"'rm -f $files; rmdir $tmpdir; exit 1'"'"' 1 2 15 ; { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
{ echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
dummy=$tmp/dummy ;
tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
case $CC_FOR_BUILD,$HOST_CC,$CC in case $CC_FOR_BUILD,$HOST_CC,$CC in
,,) echo "int x;" > $dummy.c ; ,,) echo "int x;" > $dummy.c ;
for c in cc gcc c89 c99 ; do for c in cc gcc c89 c99 ; do
@ -113,15 +116,13 @@ case $CC_FOR_BUILD,$HOST_CC,$CC in
CC_FOR_BUILD="$c"; break ; CC_FOR_BUILD="$c"; break ;
fi ; fi ;
done ; done ;
rm -f $files ;
if test x"$CC_FOR_BUILD" = x ; then if test x"$CC_FOR_BUILD" = x ; then
CC_FOR_BUILD=no_compiler_found ; CC_FOR_BUILD=no_compiler_found ;
fi fi
;; ;;
,,*) CC_FOR_BUILD=$CC ;; ,,*) CC_FOR_BUILD=$CC ;;
,*,*) CC_FOR_BUILD=$HOST_CC ;; ,*,*) CC_FOR_BUILD=$HOST_CC ;;
esac ; esac ;'
unset files'
# This is needed to find uname on a Pyramid OSx when run in the BSD universe. # This is needed to find uname on a Pyramid OSx when run in the BSD universe.
# (ghazi@noc.rutgers.edu 1994-08-24) # (ghazi@noc.rutgers.edu 1994-08-24)
@ -297,7 +298,6 @@ EOF
;; ;;
esac esac
fi fi
rm -f $dummy.s $dummy && rmdir $tmpdir
echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[VTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[VTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
exit 0 ;; exit 0 ;;
Alpha\ *:Windows_NT*:*) Alpha\ *:Windows_NT*:*)
@ -450,8 +450,7 @@ EOF
EOF EOF
$CC_FOR_BUILD -o $dummy $dummy.c \ $CC_FOR_BUILD -o $dummy $dummy.c \
&& $dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \ && $dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
&& rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0 && exit 0
rm -f $dummy.c $dummy && rmdir $tmpdir
echo mips-mips-riscos${UNAME_RELEASE} echo mips-mips-riscos${UNAME_RELEASE}
exit 0 ;; exit 0 ;;
Motorola:PowerMAX_OS:*:*) Motorola:PowerMAX_OS:*:*)
@ -535,8 +534,7 @@ EOF
exit(0); exit(0);
} }
EOF EOF
$CC_FOR_BUILD -o $dummy $dummy.c && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0 $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0
rm -f $dummy.c $dummy && rmdir $tmpdir
echo rs6000-ibm-aix3.2.5 echo rs6000-ibm-aix3.2.5
elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
echo rs6000-ibm-aix3.2.4 echo rs6000-ibm-aix3.2.4
@ -636,7 +634,6 @@ EOF
EOF EOF
(CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
test -z "$HP_ARCH" && HP_ARCH=hppa test -z "$HP_ARCH" && HP_ARCH=hppa
rm -f $dummy.c $dummy
fi ;; fi ;;
esac esac
if [ ${HP_ARCH} = "hppa2.0w" ] if [ ${HP_ARCH} = "hppa2.0w" ]
@ -650,7 +647,6 @@ EOF
HP_ARCH="hppa64" HP_ARCH="hppa64"
fi fi
fi fi
test -n "$CC_FOR_BUILD" && rmdir $tmpdir
echo ${HP_ARCH}-hp-hpux${HPUX_REV} echo ${HP_ARCH}-hp-hpux${HPUX_REV}
exit 0 ;; exit 0 ;;
ia64:HP-UX:*:*) ia64:HP-UX:*:*)
@ -684,8 +680,7 @@ EOF
exit (0); exit (0);
} }
EOF EOF
$CC_FOR_BUILD -o $dummy $dummy.c && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0 $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0
rm -f $dummy.c $dummy && rmdir $tmpdir
echo unknown-hitachi-hiuxwe2 echo unknown-hitachi-hiuxwe2
exit 0 ;; exit 0 ;;
9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
@ -779,7 +774,6 @@ EOF
#endif #endif
EOF EOF
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=` eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
rm -f $dummy.c && rmdir $tmpdir
echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`${LIBC:+-$LIBC} echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`${LIBC:+-$LIBC}
exit 0 ;; exit 0 ;;
i*:CYGWIN*:*) i*:CYGWIN*:*)
@ -844,7 +838,6 @@ EOF
#endif #endif
EOF EOF
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=` eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
rm -f $dummy.c && rmdir $tmpdir
test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0 test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0
;; ;;
mips64:Linux:*:*) mips64:Linux:*:*)
@ -864,7 +857,6 @@ EOF
#endif #endif
EOF EOF
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=` eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
rm -f $dummy.c && rmdir $tmpdir
test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0 test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0
;; ;;
ppc:Linux:*:*) ppc:Linux:*:*)
@ -960,7 +952,6 @@ EOF
#endif #endif
EOF EOF
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=` eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
rm -f $dummy.c && rmdir $tmpdir
test x"${LIBC}" != x && echo "${UNAME_MACHINE}-pc-linux-${LIBC}" && exit 0 test x"${LIBC}" != x && echo "${UNAME_MACHINE}-pc-linux-${LIBC}" && exit 0
test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0 test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0
;; ;;
@ -1332,8 +1323,7 @@ main ()
} }
EOF EOF
$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0 $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && $dummy && exit 0
rm -f $dummy.c $dummy && rmdir $tmpdir
# Apollos put the system type in the environment. # Apollos put the system type in the environment.