1: #! /bin/sh
    2: 
    3: # Use stat to find a writable directory on a file system different from that
    4: # of the current directory.  If one is found, create a temporary directory
    5: # inside it.
    6: 
    7: # Copyright (C) 1998, 1999, 2001, 2002, 2005 Free Software Foundation, Inc.
    8: 
    9: # This program is free software; you can redistribute it and/or modify
   10: # it under the terms of the GNU General Public License as published by
   11: # the Free Software Foundation; either version 2 of the License, or
   12: # (at your option) any later version.
   13: 
   14: # This program is distributed in the hope that it will be useful,
   15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   17: # GNU General Public License for more details.
   18: 
   19: # You should have received a copy of the GNU General Public License
   20: # along with this program; if not, write to the Free Software
   21: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   22: # 02110-1301, USA.
   23: 
   24: test "${CANDIDATE_TMP_DIRS+set}" = set \
   25:   || CANDIDATE_TMP_DIRS="$TMPDIR /tmp /var/tmp /usr/tmp $HOME"
   26: 
   27: other_partition_tmpdir=
   28: 
   29: dot_mount_point=`stat -c %d .`
   30: for d in $CANDIDATE_TMP_DIRS; do
   31: 
   32:   # Skip nonexistent directories.
   33:   test -d $d || continue
   34: 
   35:   d_mount_point=`stat -L -c %d $d`
   36: 
   37:   # Same partition?  Skip it.
   38:   test x$d_mount_point = x$dot_mount_point && continue
   39: 
   40:   # See if we can create a directory in it.
   41:   if mkdir "$d/tmp$$" > /dev/null 2>&1; then
   42:     other_partition_tmpdir="$d/tmp$$"
   43:     break
   44:   fi
   45: 
   46: done
   47: 
   48: if test -z "$other_partition_tmpdir"; then
   49:   cat <<EOF 1>&2
   50: **************************************
   51: This test requires a writable directory on a different
   52: disk partition, and I couldn't find one.  I tried these:
   53:   $CANDIDATE_TMP_DIRS
   54: Set your environment variable CANDIDATE_TMP_DIRS to make
   55: this test use a different list.
   56: **************************************
   57: EOF
   58:     #'
   59: fi
   60: 
   61: test "$VERBOSE" = yes && set -x