From d63b8db852c8d0b97b62fc9e405d6343453ef871 Mon Sep 17 00:00:00 2001
From: Richard Levitte <levitte@openssl.org>
Date: Mon, 11 Sep 2000 20:04:58 +0000
Subject: [PATCH] mkdef.pl still needed better logic.  Also, the semantics of
 the platforms list is clarified (it's however not quite followed in the
 RSAREF case...).

RSAREF is also checked now.
---
 util/mkdef.pl | 57 +++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 49 insertions(+), 8 deletions(-)

diff --git a/util/mkdef.pl b/util/mkdef.pl
index 706073dd74..5bc02355ff 100755
--- a/util/mkdef.pl
+++ b/util/mkdef.pl
@@ -40,7 +40,14 @@
 #   symbol name replacements for platforms where the names are too long for the
 #   compiler or linker, or if the systems is case insensitive and there is a
 #   clash.  This script assumes those redefinitions are place in the file
-#   crypto/idhacks.h.
+#   crypto/symhacks.h.
+#   The semantics for the platforms list is a bit complicated.  The rule of
+#   thumb is that the list is exclusive, but it seems to mean different things.
+#   So, if the list is all negatives (like "!VMS,!WIN16"), the symbol exists
+#   on all platforms except those listed.  If the list is all positives (like
+#   "VMS,WIN16"), the symbol exists only on those platforms and nowhere else.
+#   The combination of positives and negatives will act as if the positives
+#   weren't there.
 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
 # - "algorithms" is a comma-separated list of algorithm names.  This helps
 #   exclude symbols that are part of an algorithm that some user wants to
@@ -96,6 +103,8 @@ foreach (@ARGV, split(/ /, $options))
 		$NT = 1;
 	}
 	$VMS=1 if $_ eq "VMS";
+	$rsaref=1 if $_ eq "rsaref";
+
 	$do_ssl=1 if $_ eq "ssleay";
 	$do_ssl=1 if $_ eq "ssl";
 	$do_crypto=1 if $_ eq "libeay";
@@ -104,7 +113,6 @@ foreach (@ARGV, split(/ /, $options))
 	$do_rewrite=1 if $_ eq "rewrite";
 	$do_ctest=1 if $_ eq "ctest";
 	$do_ctestall=1 if $_ eq "ctestall";
-	$rsaref=1 if $_ eq "rsaref";
 	#$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
 
 	if    (/^no-rc2$/)      { $no_rc2=1; }
@@ -692,15 +700,48 @@ EOF
 					if(!$do_update);
 		} else {
 			(my $n, my $i) = split /\\/, $nums{$s};
+			my %pf = ();
 			my @p = split(/,/, ($i =~ /^.*?:(.*?):/,$1));
+			# @p_purged must contain hardware platforms only
+			my @p_purged = ();
+			foreach $ptmp (@p) {
+				next if $ptmp =~ /^!?RSAREF$/;
+				push @p_purged, $ptmp;
+			}
+			my $negatives = !!grep(/^!/,@p);
 			# It is very important to check NT before W32
-			if (($NT && (!@p || (grep(/^WINNT$/,@p)
-					     || !grep(/^!WINNT$/,@p))))
-			    || ($W32 && (!@p || (grep(/^WIN32$/,@p)
-						 || !grep(/^!WIN32$/,@p))))
-			    || ($W16 && (!@p || (grep(/^WIN16$/,@p)
-						 || !grep(/^!WIN16$/,@p))))) {
+			if ((($NT && (!@p_purged
+				      || (!$negatives && grep(/^WINNT$/,@p))
+				      || ($negatives && !grep(/^!WINNT$/,@p))))
+			     || ($W32 && (!@p_purged
+					  || (!$negatives && grep(/^WIN32$/,@p))
+					  || ($negatives && !grep(/^!WIN32$/,@p))))
+			     || ($W16 && (!@p_purged
+					  || (!$negatives && grep(/^WIN16$/,@p))
+					  || ($negatives && !grep(/^!WIN16$/,@p)))))
+			    && (!@p
+				|| (!$negatives
+				    && ($rsaref || !grep(/^RSAREF$/,@p)))
+				|| ($negatives
+				    && (!$rsaref || !grep(/^!RSAREF$/,@p))))) {
 				printf OUT "    %s%-40s@%d\n",($W32)?"":"_",$s,$n;
+#			} else {
+#				print STDERR "DEBUG: \"$sym\" (@p):",
+#				" rsaref:", !!(!@p
+#					       || (!$negatives
+#						   && ($rsaref || !grep(/^RSAREF$/,@p)))
+#					       || ($negatives
+#						   && (!$rsaref || !grep(/^!RSAREF$/,@p))))?1:0,
+#				" 16:", !!($W16 && (!@p_purged
+#						    || (!$negatives && grep(/^WIN16$/,@p))
+#						    || ($negatives && !grep(/^!WIN16$/,@p)))),
+#				" 32:", !!($W32 && (!@p_purged
+#						    || (!$negatives && grep(/^WIN32$/,@p))
+#						    || ($negatives && !grep(/^!WIN32$/,@p)))),
+#				" NT:", !!($NT && (!@p_purged
+#						   || (!$negatives && grep(/^WINNT$/,@p))
+#						   || ($negatives && !grep(/^!WINNT$/,@p)))),
+#				"\n";
 			}
 		}
 	}
-- 
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