tests/id/zero.sh

   1 #!/bin/sh
   2 # Exercise "id --zero".
   3
   4 # Copyright (C) 2013-2024 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ id
  21
  22 u="$( id -nu )"
  23 id || fail=1
  24 id "$u" || fail=1
  25
  26 # id(1) should refuse --zero in default format.
  27 echo 'id: option --zero not permitted in default format' > err-exp \
  28   || framework_failure_
  29 id --zero > out 2>err && fail=1
  30 compare /dev/null out || fail=1
  31 compare err-exp   err || fail=1
  32
  33 # Create a nice list of users.
  34 # Add $USER to ensure we have at least one explicit entry.
  35 users="$u"
  36 # Add a few typical users to test single group and multiple groups.
  37 for u in root man postfix sshd nobody ; do
  38   id $u >/dev/null 2>&1 && users="$users $u"
  39 done
  40 # Add $users and '' (implicit $USER) to list to process.
  41 printf '%s\n' $users '' >> users || framework_failure_
  42
  43 # Exercise "id -z" with various options.
  44 printf '\n' > exp || framework_failure_
  45 > out || framework_failure_
  46
  47 while read u ; do
  48   for o in g gr G Gr u ur ; do
  49     for n in '' n ; do
  50       printf   '%s: ' "id -${o}${n}[z] $u" >> exp || framework_failure_
  51       printf '\n%s: ' "id -${o}${n}[z] $u" >> out || framework_failure_
  52       # There may be no name corresponding to an id, so don't check
  53       # exit status when in name lookup mode
  54       id -${o}${n}  $u >> exp ||
  55         { test $? -ne 1 || test -z "$n" && fail=1; }
  56       id -${o}${n}z $u  > tmp ||
  57         { test $? -ne 1 || test -z "$n" && fail=1; }
  58       head -c-1 < tmp >> out || framework_failure_
  59     done
  60   done
  61 done < users
  62 printf '\n' >> out || framework_failure_
  63 tr '\0' ' ' < out > out2 || framework_failure_
  64 compare exp out2 || fail=1
  65
  66 # multiuser testing with -z
  67 # test if the options work, these tests should pass if the above tests
  68 # do.
  69
  70 for o in g gr u ur ; do
  71   for n in '' n ; do
  72     id -${o}${n}  $users >> tmp1 ||
  73       { test $? -ne 1 || test -z "$n" && fail=1; }
  74     id -${o}${n}z $users  > tmp2 ||
  75       { test $? -ne 1 || test -z "$n" && fail=1; }
  76     tr '\0' '\n' < tmp2 >> tmp3
  77   done
  78 done
  79 compare tmp1 tmp3 || fail=1
  80
  81 # Separate checks when we are testing for multiple users && -G.
  82 # This is done because we terminate the records with two NULs
  83 # instead of a regular single NUL.
  84
  85 NL='
  86 '
  87
  88 for o in G Gr ; do
  89   for n in '' n ; do
  90     id -${o}${n}  $users >> gtmp1 ||
  91       { test $? -ne 1 || test -z "$n" && fail=1; }
  92     echo >> gtmp1 || framework_failure_
  93
  94     id -${o}${n}z $users  > gtmp2 ||
  95       { test $? -ne 1 || test -z "$n" && fail=1; }
  96     # we replace all NULs with spaces, the result we get is there are two
  97     # consecutive spaces instead of two NUL's, we pass this to sed
  98     # to replace more than 1 space with a newline. This is ideally where a new
  99     # line should be. This should make the output similar to without -z.
 100     { tr '\0' ' ' < gtmp2; echo; } | sed "s/  /\\$NL/g" >> gtmp3
 101   done
 102 done
 103 compare gtmp1 gtmp3 || fail=1
 104
 105 Exit $fail