From 6343e2fac3fe4f1709ef9062a05c8ae91459c860 Mon Sep 17 00:00:00 2001
From: Richard Levitte <levitte@openssl.org>
Date: Thu, 15 Nov 2001 16:52:10 +0000
Subject: [PATCH] Make it possible to build completely static, independent
 error C files.

---
 util/mkerr.pl | 56 +++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 45 insertions(+), 11 deletions(-)

diff --git a/util/mkerr.pl b/util/mkerr.pl
index e812b9fc00..158b6af424 100644
--- a/util/mkerr.pl
+++ b/util/mkerr.pl
@@ -7,7 +7,7 @@ my $static = 1;
 my $recurse = 0;
 my $reindex = 0;
 my $dowrite = 0;
-
+my $staticloader = "";
 
 while (@ARGV) {
 	my $arg = $ARGV[0];
@@ -29,6 +29,9 @@ while (@ARGV) {
 	} elsif($arg eq "-nostatic") {
 		$static = 0;
 		shift @ARGV;
+	} elsif($arg eq "-staticloader") {
+		$staticloader = "static ";
+		shift @ARGV;
 	} elsif($arg eq "-write") {
 		$dowrite = 1;
 		shift @ARGV;
@@ -156,6 +159,7 @@ while (($hdr, $lib) = each %libinc)
 		if(/^#define\s+(\S+)\s+(\S+)/) {
 			$name = $1;
 			$code = $2;
+			next if $name =~ /^${lib}err/;
 			unless($name =~ /^${lib}_([RF])_(\w+)$/) {
 				print STDERR "Invalid error code $name\n";
 				next;
@@ -189,9 +193,11 @@ while (($hdr, $lib) = each %libinc)
 # so all those unreferenced can be printed out.
 
 
+print STDERR "Files loaded: " if $debug;
 foreach $file (@source) {
 	# Don't parse the error source file.
 	next if exists $cskip{$file};
+	print STDERR $file if $debug;
 	open(IN, "<$file") || die "Can't open source file $file\n";
 	while(<IN>) {
 		if(/(([A-Z0-9]+)_F_([A-Z0-9_]+))/) {
@@ -215,6 +221,7 @@ foreach $file (@source) {
 	}
 	close IN;
 }
+print STDERR "\n" if $debug;
 
 # Now process each library in turn.
 
@@ -258,8 +265,20 @@ foreach $lib (keys %csrc)
 /* The following lines are auto generated by the script mkerr.pl. Any changes
  * made after this point may be overwritten when the script is next run.
  */
-void ERR_load_${lib}_strings(void);
-
+EOF
+	if($static) {
+		print OUT <<"EOF";
+${staticloader}void ERR_load_${lib}_strings(void);
+EOF
+	} else {
+		print OUT <<"EOF";
+${staticloader}void ERR_load_${lib}_strings(void);
+${staticloader}void ERR_unload_${lib}_strings(void);
+${staticloader}void ERR_${lib}_error(int function, int reason, char *file, int line);
+#define ${lib}err(f,r) ERR_${lib}_error((f),(r),__FILE__,__LINE__)
+EOF
+	}
+	print OUT <<"EOF";
 /* Error codes for the $lib functions. */
 
 /* Function codes. */
@@ -426,7 +445,7 @@ if($static) {
 
 #endif
 
-void ERR_load_${lib}_strings(void)
+${staticloader}void ERR_load_${lib}_strings(void)
 	{
 	static int init=1;
 
@@ -457,18 +476,17 @@ static ERR_STRING_DATA ${lib}_lib_name[]=
 #endif
 
 
-int ${lib}_lib_error_code=0;
+static int ${lib}_lib_error_code=0;
+static int ${lib}_error_init=1;
 
-void ERR_load_${lib}_strings(void)
+${staticloader}void ERR_load_${lib}_strings(void)
 	{
-	static int init=1;
-
 	if (${lib}_lib_error_code == 0)
 		${lib}_lib_error_code=ERR_get_next_error_library();
 
-	if (init)
+	if (${lib}_error_init)
 		{
-		init=0;
+		${lib}_error_init=0;
 #ifndef OPENSSL_NO_ERR
 		ERR_load_strings(${lib}_lib_error_code,${lib}_str_functs);
 		ERR_load_strings(${lib}_lib_error_code,${lib}_str_reasons);
@@ -481,7 +499,23 @@ void ERR_load_${lib}_strings(void)
 		}
 	}
 
-void ERR_${lib}_error(int function, int reason, char *file, int line)
+${staticloader}void ERR_unload_${lib}_strings(void)
+	{
+	if (${lib}_error_init == 0)
+		{
+#ifndef OPENSSL_NO_ERR
+		ERR_unload_strings(${lib}_lib_error_code,${lib}_str_functs);
+		ERR_unload_strings(${lib}_lib_error_code,${lib}_str_reasons);
+#endif
+
+#ifdef ${lib}_LIB_NAME
+		ERR_unload_strings(0,${lib}_lib_name);
+#endif
+		${lib}_error_init=1;
+		}
+	}
+
+${staticloader}void ERR_${lib}_error(int function, int reason, char *file, int line)
 	{
 	if (${lib}_lib_error_code == 0)
 		${lib}_lib_error_code=ERR_get_next_error_library();
-- 
2.25.1