usr/src/lib/libast/common/features/preroot.sh

   1 ########################################################################
   2 #                                                                      #
   3 #               This software is part of the ast package               #
   4 #          Copyright (c) 1985-2010 AT&T Intellectual Property          #
   5 #                      and is licensed under the                       #
   6 #                  Common Public License, Version 1.0                  #
   7 #                    by AT&T Intellectual Property                     #
   8 #                                                                      #
   9 #                A copy of the License is available at                 #
  10 #            http://www.opensource.org/licenses/cpl1.0.txt             #
  11 #         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         #
  12 #                                                                      #
  13 #              Information and Software Systems Research               #
  14 #                            AT&T Research                             #
  15 #                           Florham Park NJ                            #
  16 #                                                                      #
  17 #                 Glenn Fowler <gsf@research.att.com>                  #
  18 #                  David Korn <dgk@research.att.com>                   #
  19 #                   Phong Vo <kpv@research.att.com>                    #
  20 #                                                                      #
  21 ########################################################################
  22 : generate preroot features
  23 case $# in
  24 0)      ;;
  25 *)      eval $1
  26         shift
  27         ;;
  28 esac
  29 if      /etc/preroot / /bin/echo >/dev/null
  30 then    cat <<!
  31 #pragma prototyped
  32
  33 #define FS_PREROOT      1                       /* preroot enabled      */
  34 #define PR_BASE         "CCS"                   /* preroot base env var */
  35 #define PR_COMMAND      "/etc/preroot"          /* the preroot command  */
  36 #define PR_REAL         "/dev/.."               /* real root pathname   */
  37 #define PR_SILENT       "CCSQUIET"              /* no command trace     */
  38
  39 extern char*            getpreroot(char*, const char*);
  40 extern int              ispreroot(const char*);
  41 extern int              realopen(const char*, int, int);
  42 extern void             setpreroot(char**, const char*);
  43
  44 !
  45 else    echo "/* preroot not enabled */"
  46 fi