xref: /openssl/util/wrap.pl.in (revision bf16ee4f) 
1#! {- $config{HASHBANGPERL} -}
2
3use strict;
4use warnings;
5
6use File::Basename;
7use File::Spec::Functions;
8
9BEGIN {
10    # This method corresponds exactly to 'use OpenSSL::Util',
11    # but allows us to use a platform specific file spec.
12    require {-
13         use Cwd qw(abs_path);
14
15         "'" . abs_path(catfile($config{sourcedir},
16                                'util', 'perl', 'OpenSSL', 'Util.pm')) . "'";
17         -};
18    OpenSSL::Util->import();
19}
20
21my $there = canonpath(catdir(dirname($0), updir()));
22my $std_engines = catdir($there, 'engines');
23my $std_providers = catdir($there, 'providers');
24my $std_openssl_conf = catdir($there, 'apps/openssl.cnf');
25my $unix_shlib_wrap = catfile($there, 'util/shlib_wrap.sh');
26
27if ($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
48my $use_system = 0;
49my @cmd;
50
51if ($^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.
63my $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)
68die "wrap.pl: Failed to execute '", join(' ', @cmd), "': $!\n"
69    if $waitcode == -1;
70
71# When the subprocess aborted on a signal, we simply raise the same signal.
72kill ($? & 255) => $$ if ($? & 255) != 0;
73
74# If that didn't stop this script, mimic what Unix shells do, by
75# converting the signal code to an exit code by setting the high bit.
76# This only happens on Unix flavored operating systems, the others don't
77# have this sort of signaling to date, and simply leave the low byte zero.
78exit(($? & 255) | 128) if ($? & 255) != 0;
79
80# When not a signal, just shift down the subprocess exit code and use that.
81my $exitcode = $? >> 8;
82
83# For VMS, perl recommendations is to emulate what the C library exit() does
84# for all non-zero exit codes, except we set the error severity rather than
85# success.
86# Ref: https://perldoc.perl.org/perlport#exit
87#      https://perldoc.perl.org/perlvms#$?
88if ($^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}
95exit($exitcode);
96