Minimal test checking we can get public key in Turkish locale

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18069)
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5bd3234..3cab961 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -69,6 +69,8 @@
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+    - name: localegen
+      run: sudo locale-gen tr_TR.UTF-8
     - name: config
       run: CC=gcc ./config --banner=Configured enable-fips --strict-warnings && perl configdata.pm --dump
     - name: make
diff --git a/test/build.info b/test/build.info
index 8736f03..ec2e310 100644
--- a/test/build.info
+++ b/test/build.info
@@ -37,7 +37,7 @@
           sanitytest rsa_complex exdatatest bntest \
           ecstresstest gmdifftest pbelutest \
           destest mdc2test sha_test \
-          exptest pbetest \
+          exptest pbetest localetest \
           evp_pkey_provided_test evp_test evp_extra_test evp_extra_test2 \
           evp_fetch_prov_test evp_libctx_test ossl_store_test \
           v3nametest v3ext \
@@ -136,6 +136,10 @@
   INCLUDE[exptest]=../include ../apps/include
   DEPEND[exptest]=../libcrypto libtestutil.a
 
+  SOURCE[localetest]=localetest.c
+  INCLUDE[localetest]=../include ../apps/include
+  DEPEND[localetest]=../libcrypto libtestutil.a
+
   SOURCE[pbetest]=pbetest.c
   INCLUDE[pbetest]=../include ../apps/include
   DEPEND[pbetest]=../libcrypto libtestutil.a
diff --git a/test/localetest.c b/test/localetest.c
new file mode 100644
index 0000000..3db66b7
--- /dev/null
+++ b/test/localetest.c
@@ -0,0 +1,122 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <openssl/x509.h>
+#include "testutil.h"
+#include "testutil/output.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <locale.h>
+#ifdef OPENSSL_SYS_WINDOWS
+# define strcasecmp _stricmp
+#else
+# include <strings.h>
+#endif
+
+int setup_tests(void)
+{
+  const unsigned char der_bytes[] = {
+  0x30, 0x82, 0x03, 0x09, 0x30, 0x82, 0x01, 0xf1, 0xa0, 0x03, 0x02, 0x01,
+  0x02, 0x02, 0x14, 0x08, 0xe0, 0x8c, 0xd3, 0xf3, 0xbf, 0x2c, 0xf2, 0x0d,
+  0x0a, 0x75, 0xd1, 0xe8, 0xea, 0xbe, 0x70, 0x61, 0xd9, 0x67, 0xf9, 0x30,
+  0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b,
+  0x05, 0x00, 0x30, 0x14, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04,
+  0x03, 0x0c, 0x09, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x68, 0x6f, 0x73, 0x74,
+  0x30, 0x1e, 0x17, 0x0d, 0x32, 0x32, 0x30, 0x34, 0x31, 0x31, 0x31, 0x34,
+  0x31, 0x39, 0x35, 0x37, 0x5a, 0x17, 0x0d, 0x32, 0x32, 0x30, 0x35, 0x31,
+  0x31, 0x31, 0x34, 0x31, 0x39, 0x35, 0x37, 0x5a, 0x30, 0x14, 0x31, 0x12,
+  0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x09, 0x6c, 0x6f, 0x63,
+  0x61, 0x6c, 0x68, 0x6f, 0x73, 0x74, 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d,
+  0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05,
+  0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82,
+  0x01, 0x01, 0x00, 0xc3, 0x1f, 0x5c, 0x56, 0x46, 0x8d, 0x69, 0xb6, 0x48,
+  0x3c, 0xbf, 0xe2, 0x0f, 0xa7, 0x4a, 0x44, 0x72, 0x74, 0x36, 0xfe, 0xe8,
+  0x2f, 0x10, 0x4a, 0xe9, 0x46, 0x45, 0x72, 0x5e, 0x48, 0xdd, 0x75, 0xab,
+  0xd9, 0x63, 0x91, 0x37, 0x93, 0x46, 0x28, 0x7e, 0x45, 0x94, 0x4b, 0x8a,
+  0xd5, 0x05, 0x2b, 0x9a, 0x01, 0x96, 0x30, 0xde, 0xcc, 0x14, 0x2d, 0x06,
+  0x09, 0x1b, 0x7d, 0x50, 0x14, 0x99, 0x36, 0x6b, 0x97, 0x6e, 0xc9, 0xb1,
+  0x69, 0x70, 0xcd, 0x9b, 0x74, 0x24, 0x9a, 0xe2, 0xd4, 0xc0, 0x1e, 0xbc,
+  0xec, 0xf6, 0x7a, 0xbb, 0xa0, 0x53, 0x93, 0xf8, 0x68, 0x9a, 0x18, 0xa1,
+  0xa1, 0x5c, 0x47, 0x93, 0xd1, 0x4c, 0x36, 0x8c, 0x00, 0xb3, 0x66, 0xda,
+  0xf1, 0x05, 0xb2, 0x3a, 0xad, 0x7e, 0x4b, 0xf3, 0xd3, 0x93, 0xfa, 0x59,
+  0x09, 0x9c, 0x60, 0x37, 0x69, 0x61, 0xe8, 0x5a, 0x33, 0xc6, 0xb2, 0x1a,
+  0xba, 0x36, 0xe2, 0xb3, 0x58, 0xe9, 0x73, 0x01, 0x2d, 0x36, 0x48, 0x36,
+  0x94, 0xe4, 0xb2, 0xa4, 0x5b, 0xdf, 0x3d, 0x5f, 0x62, 0x9f, 0xd9, 0xf3,
+  0x24, 0x0c, 0xf0, 0x2f, 0x71, 0x44, 0x79, 0x13, 0x70, 0x95, 0xa7, 0xbe,
+  0xea, 0x0a, 0x08, 0x0a, 0xa6, 0x4b, 0xe9, 0x58, 0x6b, 0xa4, 0xc2, 0xed,
+  0x74, 0x1e, 0xb0, 0x3b, 0x59, 0xd5, 0xe6, 0xdb, 0x8f, 0x58, 0x6a, 0xa3,
+  0x7d, 0x52, 0x40, 0xec, 0x72, 0xb7, 0xba, 0x7e, 0x30, 0x9d, 0x12, 0x57,
+  0xf2, 0x48, 0xae, 0x80, 0x0d, 0x0a, 0xf4, 0xfd, 0x24, 0xed, 0xd8, 0x05,
+  0xb2, 0x96, 0x44, 0x02, 0x3e, 0x6e, 0x25, 0xb0, 0xc4, 0x93, 0xda, 0xfe,
+  0x78, 0xd9, 0xbb, 0xd2, 0x71, 0x69, 0x70, 0x7f, 0xba, 0xf7, 0xb0, 0x4f,
+  0x14, 0xf7, 0x98, 0x71, 0x01, 0x6c, 0xec, 0x6f, 0x76, 0x03, 0x59, 0xff,
+  0xe2, 0xba, 0x8d, 0xd9, 0x21, 0x08, 0xb3, 0x02, 0x03, 0x01, 0x00, 0x01,
+  0xa3, 0x53, 0x30, 0x51, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04,
+  0x16, 0x04, 0x14, 0x59, 0xb8, 0x6e, 0x1a, 0x72, 0xe9, 0x27, 0x1e, 0xbf,
+  0x80, 0x87, 0x0f, 0xa9, 0xd0, 0x06, 0x6a, 0x11, 0x30, 0x77, 0x8e, 0x30,
+  0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14,
+  0x59, 0xb8, 0x6e, 0x1a, 0x72, 0xe9, 0x27, 0x1e, 0xbf, 0x80, 0x87, 0x0f,
+  0xa9, 0xd0, 0x06, 0x6a, 0x11, 0x30, 0x77, 0x8e, 0x30, 0x0f, 0x06, 0x03,
+  0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01,
+  0xff, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
+  0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x98, 0x76, 0x9e,
+  0x3c, 0xfc, 0x3f, 0x58, 0xe8, 0xf2, 0x1f, 0x2e, 0x11, 0xa2, 0x59, 0xfa,
+  0x27, 0xb5, 0xec, 0x9d, 0x97, 0x05, 0x06, 0x2c, 0x95, 0xa5, 0x28, 0x88,
+  0x86, 0xeb, 0x4e, 0x8a, 0x62, 0xe9, 0x87, 0x78, 0xd8, 0x18, 0x22, 0x4e,
+  0xb1, 0x8d, 0x46, 0x4a, 0x4c, 0x6e, 0x7c, 0x53, 0x62, 0x2c, 0xf2, 0x7a,
+  0x95, 0xa0, 0x1a, 0x30, 0x18, 0x6a, 0x31, 0x6f, 0x3f, 0x55, 0x25, 0x9f,
+  0x67, 0x60, 0x68, 0x99, 0x0f, 0x41, 0x09, 0xc8, 0xe2, 0x04, 0x33, 0x22,
+  0x1a, 0xe9, 0xf3, 0xae, 0xce, 0xb6, 0x83, 0x64, 0x78, 0x66, 0x14, 0xc9,
+  0x54, 0xc8, 0x34, 0x70, 0x96, 0xaf, 0x16, 0xcd, 0xb8, 0xdf, 0x81, 0x7e,
+  0xf0, 0xa6, 0x7d, 0xc1, 0x13, 0xb2, 0x76, 0x3a, 0xd5, 0x7e, 0x68, 0x8c,
+  0xd5, 0x00, 0x70, 0x82, 0x23, 0x7e, 0x5e, 0xc9, 0x31, 0x2f, 0x33, 0x54,
+  0xaa, 0xaf, 0xcd, 0xe9, 0x38, 0x9a, 0x23, 0x53, 0xad, 0x4e, 0x72, 0xa7,
+  0x6f, 0x47, 0x60, 0xc9, 0xd3, 0x06, 0x9b, 0x7a, 0x21, 0xc6, 0xe9, 0xdb,
+  0x3c, 0xaa, 0xc0, 0x21, 0x29, 0x5f, 0x44, 0x6a, 0x45, 0x90, 0x73, 0x5e,
+  0x6d, 0x78, 0x82, 0xcb, 0x42, 0xe6, 0xba, 0x67, 0xb2, 0xe6, 0xa2, 0x15,
+  0x04, 0xea, 0x69, 0xae, 0x3e, 0xc0, 0x0c, 0x10, 0x99, 0xec, 0xa9, 0xb0,
+  0x7e, 0xe8, 0x94, 0xe2, 0xf3, 0xaf, 0xf7, 0x9f, 0x65, 0xe7, 0xd7, 0xe2,
+  0x49, 0xfa, 0x52, 0x7d, 0xb5, 0xfd, 0xa0, 0xa5, 0xe0, 0x49, 0xa7, 0x3d,
+  0x94, 0x20, 0x2d, 0xec, 0x8c, 0x22, 0xa5, 0xa4, 0x43, 0xfa, 0x7e, 0xd0,
+  0x50, 0x21, 0xb8, 0x67, 0x18, 0x44, 0x69, 0x8f, 0xdd, 0x47, 0x41, 0xc6,
+  0x35, 0xe0, 0xe9, 0x2e, 0x41, 0xa9, 0x6f, 0x41, 0xee, 0xb9, 0xbd, 0x45,
+  0xf3, 0x88, 0xc1, 0x23, 0x35, 0x96, 0xba, 0xf8, 0xcd, 0x4b, 0x83, 0x73,
+  0x5f
+};
+
+    char str1[] = "SubjectPublicKeyInfo", str2[] = "subjectpublickeyinfo";
+    int res;
+    X509 *cert = NULL;
+    X509_PUBKEY *cert_pubkey = NULL;
+    const unsigned char *p = der_bytes;
+
+    TEST_ptr(setlocale(LC_ALL, ""));
+
+    res = strcasecmp(str1, str2);
+    TEST_note("Case-insensitive comparison via strcasecmp in current locale %s\n", res ? "failed" : "succeeded");
+
+    TEST_false(OPENSSL_strcasecmp(str1, str2));
+
+    cert = d2i_X509(NULL, &p, sizeof(der_bytes));
+    if (!TEST_ptr(cert))
+        return 0;
+
+    cert_pubkey = X509_get_X509_PUBKEY(cert);
+    if (!TEST_ptr(cert_pubkey)) {
+        X509_free(cert);
+        return 0;
+    }
+
+    if (!TEST_ptr(X509_PUBKEY_get0(cert_pubkey))) {
+        X509_free(cert);
+        return 0;
+    }
+
+    X509_free(cert);
+    return 1;
+}
+
+void cleanup_tests(void)
+{
+}
diff --git a/test/recipes/02-test_localetest.t b/test/recipes/02-test_localetest.t
new file mode 100644
index 0000000..1bccd57
--- /dev/null
+++ b/test/recipes/02-test_localetest.t
@@ -0,0 +1,24 @@
+#! /usr/bin/env perl
+# Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+# Copyright (c) 2017, Oracle and/or its affiliates.  All rights reserved.
+#
+# Licensed under the Apache License 2.0 (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+use OpenSSL::Test;
+use OpenSSL::Test::Utils;
+
+setup("locale tests");
+
+plan skip_all => "Locale tests not available on Windows or VMS"
+    if $^O =~ /^(VMS|MSWin32)$/;
+
+plan tests => 2;
+
+$ENV{LANG} = "C";
+ok(run(test(["localetest"])), "running localetest");
+
+$ENV{LANG} = "tr_TR.UTF-8";
+ok(run(test(["localetest"])), "running localetest with Turkish locale");