util/wrap.pl.in

   1 #! {- $config{HASHBANGPERL} -}
   2
   3 use strict;
   4 use warnings;
   5
   6 use File::Basename;
   7 use File::Spec::Functions;
   8
   9 BEGIN {
  10     # This method corresponds exactly to 'use OpenSSL::Util',
  11     # but allows us to use a platform specific file spec.
  12     require {-
  13          use Cwd qw(abs_path);
  14
  15          "'" . abs_path(catfile($config{sourcedir},
  16                                 'util', 'perl', 'OpenSSL', 'Util.pm')) . "'";
  17          -};
  18     OpenSSL::Util->import();
  19 }
  20
  21 my $there = canonpath(catdir(dirname($0), updir()));
  22 my $std_engines = catdir($there, 'engines');
  23 my $std_providers = catdir($there, 'providers');
  24 my $std_openssl_conf = catdir($there, 'apps/openssl.cnf');
  25 my $unix_shlib_wrap = catfile($there, 'util/shlib_wrap.sh');
  26
  27 if ($ARGV[0] eq '-fips') {
  28     $std_openssl_conf = {-
  29          use Cwd qw(abs_path);
  30
  31          "'" . abs_path(catfile($config{sourcedir}, 'test/fips-and-base.cnf')) . "'";
  32          -};
  33     shift;
  34
  35     my $std_openssl_conf_include = catdir($there, 'providers');
  36     $ENV{OPENSSL_CONF_INCLUDE} = $std_openssl_conf_include
  37         if ($ENV{OPENSSL_CONF_INCLUDE} // '') eq ''
  38             && -d $std_openssl_conf_include;
  39 }
  40
  41 $ENV{OPENSSL_ENGINES} = $std_engines
  42     if ($ENV{OPENSSL_ENGINES} // '') eq '' && -d $std_engines;
  43 $ENV{OPENSSL_MODULES} = $std_providers
  44     if ($ENV{OPENSSL_MODULES} // '') eq '' && -d $std_providers;
  45 $ENV{OPENSSL_CONF} = $std_openssl_conf
  46     if ($ENV{OPENSSL_CONF} // '') eq '' && -f $std_openssl_conf;
  47
  48 my $use_system = 0;
  49 my @cmd;
  50
  51 if ($^O eq 'VMS') {
  52     # VMS needs the command to be appropriately quotified
  53     @cmd = fixup_cmd(@ARGV);
  54 } elsif (-x $unix_shlib_wrap) {
  55     @cmd = ( $unix_shlib_wrap, @ARGV );
  56 } else {
  57     # Hope for the best
  58     @cmd = ( @ARGV );
  59 }
  60
  61 # The exec() statement on MSWin32 doesn't seem to give back the exit code
  62 # from the call, so we resort to using system() instead.
  63 my $waitcode = system @cmd;
  64
  65 # According to documentation, -1 means that system() couldn't run the command,
  66 # otherwise, the value is similar to the Unix wait() status value
  67 # (exitcode << 8 | signalcode)
  68 die "wrap.pl: Failed to execute '", join(' ', @cmd), "': $!\n"
  69     if $waitcode == -1;
  70
  71 # When the subprocess aborted on a signal, we simply raise the same signal.
  72 kill(($? & 255) => $$) if ($? & 255) != 0;
  73
  74 # If that didn't stop this script, mimic what Unix shells do, by
  75 # converting the signal code to an exit code by setting the high bit.
  76 # This only happens on Unix flavored operating systems, the others don't
  77 # have this sort of signaling to date, and simply leave the low byte zero.
  78 exit(($? & 255) | 128) if ($? & 255) != 0;
  79
  80 # When not a signal, just shift down the subprocess exit code and use that.
  81 my $exitcode = $? >> 8;
  82
  83 # For VMS, perl recommendations is to emulate what the C library exit() does
  84 # for all non-zero exit codes, except we set the error severity rather than
  85 # success.
  86 # Ref: https://perldoc.perl.org/perlport#exit
  87 #      https://perldoc.perl.org/perlvms#$?
  88 if ($^O eq 'VMS' && $exitcode != 0) {
  89     $exitcode =
  90         0x35a000                # C facility code
  91         + ($exitcode * 8)       # shift up to make space for the 3 severity bits
  92         + 2                     # Severity: E(rror)
  93         + 0x10000000;           # bit 28 set => the shell stays silent
  94 }
  95 exit($exitcode);