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util/perl/OpenSSL/config.pm: Prefer POSIX::uname() over piping the command

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POSIX::uname() has the advantage to work on non-POSIX systems as well,
such as the Windows command prompt and VMS.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11230)
This commit is contained in:
Richard Levitte 2020-03-02 18:42:30 +01:00
parent 33d5b4a68a
commit 69aa579e6d
1 changed files with 17 additions and 20 deletions
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37
util/perl/OpenSSL/config.pm
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@ -15,6 +15,7 @@ use strict;
use warnings;
use Getopt::Std;
use File::Basename;
use POSIX;
# These control our behavior.
my $DRYRUN;
@ -95,6 +96,19 @@ my $simple_guess_patterns = [
[ 'Darwin:.*Power', 'ppc-apple-darwin' ],
[ 'Darwin:.*x86_64', 'x86_64-apple-darwin' ],
[ 'Darwin:', 'i686-apple-darwin' ],
# Windows values found by looking at Perl 5's win32/win32.c
[ 'Windows NT:.*:amd64', 'VC-WIN64A' ],
[ 'Windows NT:.*:ia64', 'VC-WIN64I' ],
[ 'Windows NT:.*:x86', 'VC-WIN32' ],
# VMS values found by observation on existing machinery. Unfortunately,
# the machine part is a bit... overdone. It seems, though, that 'Alpha'
# exists in that part, making it distinguishable from Itanium. It will
# be interesting to see what we'll get in the upcoming x86_64 port...
[ 'OpenVMS:.*:.*:.*:.*Alpha*', 'vms-alpha' ],
[ 'OpenVMS:', 'vms-ia64' ],
];
# More complex cases that require run-time code.
@ -215,25 +229,6 @@ EOF
$WAIT = 0 if $opt_w;
}
# call uname with specified arg, return result.
sub uname {
my $arg = shift;
open UNAME, "uname $arg 2>/dev/null|" or return "unknown";
my $line = <UNAME>;
close UNAME;
$line =~ s/[\r\n]+$//;
return "unknown" if $line eq '';
return $line;
}
# Set machine type, release, etc., variables.
sub get_machine_etc {
$MACHINE = $ENV{MACHINE} // uname('-m');
$RELEASE = $ENV{RELEASE} // uname('-r');
$SYSTEM = $ENV{SYSTEM} // uname("-s");
$VERSION = uname('-v');
}
# Expand variable references in a string.
sub expand {
my $var = shift;
@ -282,6 +277,9 @@ sub get_sco_type {
# Return the cputype-vendor-osversion
sub guess_system {
($SYSTEM, undef, $RELEASE, $VERSION, $MACHINE) = POSIX::uname();
my $sys = "${SYSTEM}:${RELEASE}:${VERSION}:${MACHINE}";
# Special-cases for ISC, SCO, Unixware
my $REL = is_sco_uname();
if ( $REL ne "" ) {
@ -290,7 +288,6 @@ sub guess_system {
}
# Now pattern-match
my $sys = "${SYSTEM}:${RELEASE}:${VERSION}:${MACHINE}";
# Simple cases
foreach my $tuple ( @$simple_guess_patterns ) {