summaryrefslogtreecommitdiff
path: root/install-sh
diff options
context:
space:
mode:
authorJörg Frings-Fürst <debian@jff-webhosting.net>2017-07-15 11:25:39 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2017-07-15 11:25:39 +0200
commit1edb02101a9306fc711cd422ed507d18165b1691 (patch)
treebd2d48a139bfbe869f4f49359b63097931a45e7b /install-sh
parent2ca8a81bd0d99fe4d75c229d0e988d8ef710285f (diff)
move from support/1.0.27 to feature/1.0.27
Diffstat (limited to 'install-sh')
-rwxr-xr-xinstall-sh21
1 files changed, 14 insertions, 7 deletions
diff --git a/install-sh b/install-sh
index 377bb86..756420d 100755
--- a/install-sh
+++ b/install-sh
@@ -345,34 +345,41 @@ do
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
;;
*)
+ # $RANDOM is not portable (e.g. dash); use it when possible to
+ # lower collision chance
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
- trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+ trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
+ # As "mkdir -p" follows symlinks and we work in /tmp possibly; so
+ # create the $tmpdir first (and fail if unsuccessful) to make sure
+ # that nobody tries to guess the $tmpdir name.
if (umask $mkdir_umask &&
- exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+ $mkdirprog $mkdir_mode "$tmpdir" &&
+ exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
then
if test -z "$dir_arg" || {
# Check for POSIX incompatibilities with -m.
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
# other-writable bit of parent directory when it shouldn't.
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
- ls_ld_tmpdir=`ls -ld "$tmpdir"`
+ test_tmpdir="$tmpdir/a"
+ ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
case $ls_ld_tmpdir in
d????-?r-*) different_mode=700;;
d????-?--*) different_mode=755;;
*) false;;
esac &&
- $mkdirprog -m$different_mode -p -- "$tmpdir" && {
- ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+ $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
+ ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
}
}
then posix_mkdir=:
fi
- rmdir "$tmpdir/d" "$tmpdir"
+ rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
else
# Remove any dirs left behind by ancient mkdir implementations.
- rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+ rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
fi
trap '' 0;;
esac;;