Add an OPENSSL_NO_AUTOERRINIT option

This option disables automatic loading of the crypto/ssl error strings in
order to keep statically linked executable file size down
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Configure

@@ -228,6 +228,7 @@ my @disablables = (
     "asm",
     "async",
     "autoalginit",
+    "autoerrinit",
     "bf",
     "camellia",
     "capieng",
@@ -743,7 +744,7 @@ foreach (sort (keys %disabled))
 		($ALGO = $algo = $_) =~ tr/[\-a-z]/[_A-Z]/;
 
 		if (/^asm$/ || /^err$/ || /^hw$/ || /^hw-/ || /^async$/
-				|| /^autoalginit/)
+				|| /^autoalginit/ || /^autoerrinit/)
 			{
 			push @{$config{openssl_other_defines}}, "OPENSSL_NO_$ALGO";
 			print " OPENSSL_NO_$ALGO";

crypto/init.c

@@ -282,7 +282,11 @@ static void ossl_init_no_load_crypto_strings(void)
 
 static void ossl_init_load_crypto_strings(void)
 {
-#ifndef OPENSSL_NO_ERR
+    /*
+     * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
+     * pulling in all the error strings during static linking
+     */
+#if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
 # ifdef OPENSSL_INIT_DEBUG
     fprintf(stderr, "OPENSSL_INIT: ossl_init_load_crypto_strings: "
                     "err_load_crypto_strings_intern()\n");

ssl/ssl_init.c

@@ -253,11 +253,17 @@ static OPENSSL_INIT_ONCE ssl_strings = OPENSSL_INIT_ONCE_STATIC_INIT;
 static int ssl_strings_inited = 0;
 static void ossl_init_load_ssl_strings(void)
 {
-#ifdef OPENSSL_INIT_DEBUG
+    /*
+     * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
+     * pulling in all the error strings during static linking
+     */
+#if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
+# ifdef OPENSSL_INIT_DEBUG
         fprintf(stderr, "OPENSSL_INIT: ossl_init_load_ssl_strings: "
                         "ERR_load_SSL_strings()\n");
-#endif
+# endif
     ERR_load_SSL_strings();
+#endif
     ssl_strings_inited = 1;
 }
 

util/mk1mf.pl

@@ -144,6 +144,7 @@ and [options] can be one of
 	no-hw					- No hw
 	no-async				- No Async (use NULL)
 	no-autoalginit				- Don't auto load algorithms in libcrypto
+	no-autoerrinit				- Don't auto load error strings for libcrypto or libssl
 	nasm 					- Use NASM for x86 asm
 	nw-nasm					- Use NASM x86 asm for NetWare
 	nw-mwasm				- Use Metrowerks x86 asm for NetWare
@@ -300,6 +301,7 @@ $cflags.=" -DOPENSSL_NO_ENGINE"   if $no_engine;
 $cflags.=" -DOPENSSL_NO_HW"   if $no_hw;
 $cflags.=" -DOPENSSL_NO_ASYNC" if $no_async;
 $cflags.=" -DOPENSSL_NO_AUTOALGINIT" if $no_autoalginit;
+$cflags.=" -DOPENSSL_NO_AUTOERRINIT" if $no_autoerrinit;
 $cflags.=" -DOPENSSL_FIPS"    if $fips;
 $cflags.=" -DOPENSSL_NO_JPAKE"    if $no_jpake;
 $cflags.=" -DOPENSSL_NO_EC2M"    if $no_ec2m;
@@ -1417,6 +1419,7 @@ sub read_options
 		"no-hw" => \$no_hw,
 		"no-async" => \$no_async,
 		"no-autoalginit" => \$no_autoalginit,
+		"no-autoerrinit" => \$no_autoerrinit,
 		"just-ssl" =>
 			[\$no_rc2, \$no_idea, \$no_des, \$no_bf, \$no_cast,
 			  \$no_md2, \$no_mdc2, \$no_dsa, \$no_dh,