lib/t-idcache

   1 #!/bin/sh
   2 # Compare the two halves (user and group) of idcache.c.
   3 # Once xformed, they'd better be the same:
   4
   5 pwd=`pwd`
   6 t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
   7 trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
   8 trap '(exit $?); exit $?' 1 2 13 15
   9
  10 srcdir=../..
  11 framework_failure=0
  12 mkdir -p $tmp || framework_failure=1
  13 cd $tmp || framework_failure=1
  14
  15 if test $framework_failure = 1; then
  16   echo "$0: failure in testing framework" 1>&2
  17   (exit 1); exit 1
  18 fi
  19
  20 # Extract user-oriented functions.
  21 perl -ne \
  22   'print if /^static struct.*user_alist/ .. /^static struct.*group_alist/' \
  23   $srcdir/idcache.c | head -n -3 > u
  24 # Extract group-oriented functions.
  25 perl -ne 'print if /^static struct.*group_alist/ .. eof' $srcdir/idcache.c > g
  26
  27 # Convert user-specific strings of "u" into corresponding group-specific strings
  28 subst='
  29 s/user_/group_/g;
  30 s/\buser\b/group/g;
  31 s/USER/GROUP/g;
  32 s/\bu\b/g/g;
  33 s/passwd/group/g;
  34 s/pw_uid/gr_gid/g;
  35 s/pwnam/grnam/g;
  36 s/pwent/grent/g;
  37 s/getpw/getgr/g;
  38 s/pw_/gr_/g;
  39 s/UID/GID/g;
  40 s/uid/gid/g;
  41 s/getuser/getgroup/;
  42 s/login name/group name/;
  43 s/to be the/to belong to/;
  44 s/pwd fun/grp fun/;
  45 '
  46
  47 fail=0
  48 # Ensure that the transformed "u" is the same as g.
  49 # Any differences here constitute an error.
  50 perl -pe "$subst" u | diff -u - g || fail=1
  51
  52 exit $fail