-# func_tmpdir
-# creates a temporary directory.
-# Sets variable
-# - tmp pathname of freshly created temporary directory
-func_tmpdir ()
-{
- # Use the environment variable TMPDIR, falling back to /tmp. This allows
- # users to specify a different temporary directory, for example, if their
- # /tmp is filled up or too small.
- : ${TMPDIR=/tmp}
- {
- # Use the mktemp program if available. If not available, hide the error
- # message.
- tmp=`(umask 077 && mktemp -d "$TMPDIR/glXXXXXX") 2>/dev/null` &&
- test -n "$tmp" && test -d "$tmp"
- } ||
- {
- # Use a simple mkdir command. It is guaranteed to fail if the directory
- # already exists. $RANDOM is bash specific and expands to empty in shells
- # other than bash, ksh and zsh. Its use does not increase security;
- # rather, it minimizes the probability of failure in a very cluttered /tmp
- # directory.
- tmp=$TMPDIR/gl$$-$RANDOM
- (umask 077 && mkdir "$tmp")
- } ||
- {
- echo "$0: cannot create a temporary directory in $TMPDIR" >&2
- { (exit 1); exit 1; }
- }
-}
-