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| author | Lasse Collin <lasse.collin@tukaani.org> | 2014-11-10 18:54:40 +0200 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2014-11-10 18:54:40 +0200 |
| commit | 7b03a15cea8cd4f19ed680b51c4bcbae3ce4142f (patch) | |
| tree | 73e6abf722be50f71c92537c60a62514d845014e /src/scripts/xzdiff.in | |
| parent | xzdiff: Create a temporary directory to hold a temporary file. (diff) | |
| download | xz-7b03a15cea8cd4f19ed680b51c4bcbae3ce4142f.tar.xz | |
xzdiff: Use mkdir if mktemp isn't available.
Diffstat (limited to 'src/scripts/xzdiff.in')
| -rw-r--r-- | src/scripts/xzdiff.in | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/scripts/xzdiff.in b/src/scripts/xzdiff.in index ea35d26b..79df3836 100644 --- a/src/scripts/xzdiff.in +++ b/src/scripts/xzdiff.in @@ -139,7 +139,22 @@ elif test $# -eq 2; then test -n "$tmp" && rm -rf "$tmp" (exit 2); exit 2 ' HUP INT PIPE TERM 0 - tmp=`mktemp -t -d -- "$prog.XXXXXXXXXX"` || exit 2 + if type mktemp >/dev/null 2>&1; then + tmp=`mktemp -t -d -- "$prog.XXXXXXXXXX"` || exit 2 + else + # Fallback code if mktemp is missing. This isn't as + # robust as using mktemp since this doesn't try with + # different file names in case of a file name conflict. + # + # There's no need to save the original umask since + # we don't create any non-temp files. Note that using + # mkdir -m 0077 isn't secure since some mkdir implementations + # create the dir with the default umask and chmod the + # the dir afterwards. + umask 0077 + mkdir -- "${TMPDIR-/tmp}/$prog.$$" || exit 2 + tmp="${TMPDIR-/tmp}/$prog.$$" + fi $xz2 -cdfq -- "$2" > "$tmp/$F" || exit 2 xz_status=$( exec 4>&1 |