Index: openssl-1.0.1i/apps/apps.c
===================================================================
--- openssl-1.0.1i.orig/apps/apps.c	2017-11-03 12:16:48.419869928 +0100
+++ openssl-1.0.1i/apps/apps.c	2017-11-03 12:38:30.809334129 +0100
@@ -2365,6 +2365,8 @@ int args_verify(char ***pargs, int *parg
 		flags |= X509_V_FLAG_NOTIFY_POLICY;
 	else if (!strcmp(arg, "-check_ss_sig"))
 		flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
+	else if (!strcmp(arg, "-trusted_first"))
+		flags |= X509_V_FLAG_TRUSTED_FIRST;
 	else
 		return 0;
 
Index: openssl-1.0.1i/apps/cms.c
===================================================================
--- openssl-1.0.1i.orig/apps/cms.c	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/apps/cms.c	2017-11-03 12:38:30.809334129 +0100
@@ -642,6 +642,7 @@ int MAIN(int argc, char **argv)
 		BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
 		BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
 		BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
+		BIO_printf (bio_err, "-trusted_first use trusted certificates first when building the trust chain\n");
 		BIO_printf (bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
 		BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
 #ifndef OPENSSL_NO_ENGINE
Index: openssl-1.0.1i/apps/ocsp.c
===================================================================
--- openssl-1.0.1i.orig/apps/ocsp.c	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/apps/ocsp.c	2017-11-03 12:38:30.809334129 +0100
@@ -605,6 +605,7 @@ int MAIN(int argc, char **argv)
 		BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 		BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 		BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
+		BIO_printf (bio_err, "-trusted_first     use trusted certificates first when building the trust chain\n");
 		BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 		BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 		BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
Index: openssl-1.0.1i/apps/s_client.c
===================================================================
--- openssl-1.0.1i.orig/apps/s_client.c	2017-11-03 12:16:47.991862995 +0100
+++ openssl-1.0.1i/apps/s_client.c	2017-11-03 12:38:30.809334129 +0100
@@ -299,6 +299,7 @@ static void sc_usage(void)
 	BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 	BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 	BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
+	BIO_printf(bio_err," -trusted_first - Use trusted CA's first when building the trust chain\n");
 	BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 	BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 	BIO_printf(bio_err," -prexit       - print session information even on connection failure\n");
Index: openssl-1.0.1i/apps/smime.c
===================================================================
--- openssl-1.0.1i.orig/apps/smime.c	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/apps/smime.c	2017-11-03 12:38:30.809334129 +0100
@@ -479,6 +479,7 @@ int MAIN(int argc, char **argv)
 		BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
 		BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
 		BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
+		BIO_printf (bio_err, "-trusted_first use trusted certificates first when building the trust chain\n");
 		BIO_printf (bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
 		BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
 #ifndef OPENSSL_NO_ENGINE
Index: openssl-1.0.1i/apps/s_server.c
===================================================================
--- openssl-1.0.1i.orig/apps/s_server.c	2017-11-03 12:16:48.283867725 +0100
+++ openssl-1.0.1i/apps/s_server.c	2017-11-03 12:38:30.809334129 +0100
@@ -522,6 +522,7 @@ static void sv_usage(void)
 	BIO_printf(bio_err," -state        - Print the SSL states\n");
 	BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 	BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
+	BIO_printf(bio_err," -trusted_first - Use trusted CA's first when building the trust chain\n");
 	BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 	BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 	BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
Index: openssl-1.0.1i/apps/s_time.c
===================================================================
--- openssl-1.0.1i.orig/apps/s_time.c	2017-11-03 12:16:47.831860403 +0100
+++ openssl-1.0.1i/apps/s_time.c	2017-11-03 12:16:48.531871742 +0100
@@ -179,6 +179,7 @@ static void s_time_usage(void)
                 file if not specified by this option\n\
 -CApath arg   - PEM format directory of CA's\n\
 -CAfile arg   - PEM format file of CA's\n\
+-trusted_first - Use trusted CA's first when building the trust chain\n\
 -cipher       - preferred cipher to use, play with 'openssl ciphers'\n\n";
 
 	printf( "usage: s_time <args>\n\n" );
Index: openssl-1.0.1i/apps/ts.c
===================================================================
--- openssl-1.0.1i.orig/apps/ts.c	2014-07-22 21:43:11.000000000 +0200
+++ openssl-1.0.1i/apps/ts.c	2017-11-03 12:16:48.531871742 +0100
@@ -383,7 +383,7 @@ int MAIN(int argc, char **argv)
 		   "ts -verify [-data file_to_hash] [-digest digest_bytes] "
 		   "[-queryfile request.tsq] "
 		   "-in response.tsr [-token_in] "
-		   "-CApath ca_path -CAfile ca_file.pem "
+		   "-CApath ca_path -CAfile ca_file.pem -trusted_first"
 		   "-untrusted cert_file.pem\n");
  cleanup:
 	/* Clean up. */
Index: openssl-1.0.1i/apps/verify.c
===================================================================
--- openssl-1.0.1i.orig/apps/verify.c	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/apps/verify.c	2017-11-03 12:38:30.809334129 +0100
@@ -237,7 +237,7 @@ int MAIN(int argc, char **argv)
 
 end:
 	if (ret == 1) {
-		BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]");
+		BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-trusted_first] [-purpose purpose] [-crl_check]");
 		BIO_printf(bio_err," [-attime timestamp]");
 #ifndef OPENSSL_NO_ENGINE
 		BIO_printf(bio_err," [-engine e]");
Index: openssl-1.0.1i/crypto/x509/x509_vfy.c
===================================================================
--- openssl-1.0.1i.orig/crypto/x509/x509_vfy.c	2017-11-03 12:16:48.123865133 +0100
+++ openssl-1.0.1i/crypto/x509/x509_vfy.c	2017-11-03 12:38:30.809334129 +0100
@@ -205,6 +205,21 @@ int X509_verify_cert(X509_STORE_CTX *ctx
 
 		/* If we are self signed, we break */
 		if (ctx->check_issued(ctx, x,x)) break;
+		/* If asked see if we can find issuer in trusted store first */
+		if (ctx->param->flags & X509_V_FLAG_TRUSTED_FIRST)
+			{
+			ok = ctx->get_issuer(&xtmp, ctx, x);
+			if (ok < 0)
+				return ok;
+			/* If successful for now free up cert so it
+			 * will be picked up again later.
+			 */
+			if (ok > 0)
+				{
+				X509_free(xtmp);
+				break;
+				}
+			}
 
 		/* If we were passed a cert chain, use it first */
 		if (ctx->untrusted != NULL)
Index: openssl-1.0.1i/crypto/x509/x509_vfy.h
===================================================================
--- openssl-1.0.1i.orig/crypto/x509/x509_vfy.h	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/crypto/x509/x509_vfy.h	2017-11-03 12:38:30.809334129 +0100
@@ -389,6 +389,8 @@ void X509_STORE_CTX_set_depth(X509_STORE
 #define X509_V_FLAG_USE_DELTAS			0x2000
 /* Check selfsigned CA signature */
 #define X509_V_FLAG_CHECK_SS_SIGNATURE		0x4000
+/* Use trusted store first */
+#define X509_V_FLAG_TRUSTED_FIRST		0x8000
 
 
 #define X509_VP_FLAG_DEFAULT			0x1
Index: openssl-1.0.1i/doc/apps/cms.pod
===================================================================
--- openssl-1.0.1i.orig/doc/apps/cms.pod	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/doc/apps/cms.pod	2017-11-03 12:38:30.809334129 +0100
@@ -35,6 +35,7 @@ B<openssl> B<cms>
 [B<-print>]
 [B<-CAfile file>]
 [B<-CApath dir>]
+[B<-trusted_first>]
 [B<-md digest>]
 [B<-[cipher]>]
 [B<-nointern>]
@@ -243,6 +244,12 @@ B<-verify>. This directory must be a sta
 is a hash of each subject name (using B<x509 -hash>) should be linked
 to each certificate.
 
+=item B<-trusted_first>
+
+Use certificates in CA file or CA directory before untrusted certificates
+from the message when building the trust chain to verify certificates.
+This is mainly useful in environments with Bridge CA or Cross-Certified CAs.
+
 =item B<-md digest>
 
 digest algorithm to use when signing or resigning. If not present then the
Index: openssl-1.0.1i/doc/apps/ocsp.pod
===================================================================
--- openssl-1.0.1i.orig/doc/apps/ocsp.pod	2014-07-22 21:43:11.000000000 +0200
+++ openssl-1.0.1i/doc/apps/ocsp.pod	2017-11-03 12:38:30.809334129 +0100
@@ -29,6 +29,7 @@ B<openssl> B<ocsp>
 [B<-path>]
 [B<-CApath dir>]
 [B<-CAfile file>]
+[B<-trusted_first>]
 [B<-VAfile file>]
 [B<-validity_period n>]
 [B<-status_age n>]
@@ -138,6 +139,13 @@ or "/" by default.
 file or pathname containing trusted CA certificates. These are used to verify
 the signature on the OCSP response.
 
+=item B<-trusted_first>
+
+Use certificates in CA file or CA directory over certificates provided
+in the response or residing in other certificates file when building the trust
+chain to verify responder certificate.
+This is mainly useful in environments with Bridge CA or Cross-Certified CAs.
+
 =item B<-verify_other file>
 
 file containing additional certificates to search when attempting to locate
Index: openssl-1.0.1i/doc/apps/s_client.pod
===================================================================
--- openssl-1.0.1i.orig/doc/apps/s_client.pod	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/doc/apps/s_client.pod	2017-11-03 12:38:30.809334129 +0100
@@ -19,6 +19,7 @@ B<openssl> B<s_client>
 [B<-pass arg>]
 [B<-CApath directory>]
 [B<-CAfile filename>]
+[B<-trusted_first>]
 [B<-reconnect>]
 [B<-pause>]
 [B<-showcerts>]
@@ -116,7 +117,7 @@ also used when building the client certi
 A file containing trusted certificates to use during server authentication
 and to use when attempting to build the client certificate chain.
 
-=item B<-purpose, -ignore_critical, -issuer_checks, -crl_check, -crl_check_all, -policy_check, -extended_crl, -x509_strict, -policy -check_ss_sig>
+=item B<-purpose, -ignore_critical, -issuer_checks, -crl_check, -crl_check_all, -policy_check, -extended_crl, -x509_strict, -policy -check_ss_sig, -trusted_first>
 
 Set various certificate chain valiadition option. See the
 L<B<verify>|verify(1)> manual page for details.
Index: openssl-1.0.1i/doc/apps/smime.pod
===================================================================
--- openssl-1.0.1i.orig/doc/apps/smime.pod	2014-07-22 21:43:11.000000000 +0200
+++ openssl-1.0.1i/doc/apps/smime.pod	2017-11-03 12:38:30.809334129 +0100
@@ -15,6 +15,9 @@ B<openssl> B<smime>
 [B<-pk7out>]
 [B<-[cipher]>]
 [B<-in file>]
+[B<-CAfile file>]
+[B<-CApath dir>]
+[B<-trusted_first>]
 [B<-certfile file>]
 [B<-signer file>]
 [B<-recip  file>]
@@ -146,6 +149,12 @@ B<-verify>. This directory must be a sta
 is a hash of each subject name (using B<x509 -hash>) should be linked
 to each certificate.
 
+=item B<-trusted_first>
+
+Use certificates in CA file or CA directory over certificates provided
+in the message when building the trust chain to verify a certificate.
+This is mainly useful in environments with Bridge CA or Cross-Certified CAs.
+
 =item B<-md digest>
 
 digest algorithm to use when signing or resigning. If not present then the
Index: openssl-1.0.1i/doc/apps/s_server.pod
===================================================================
--- openssl-1.0.1i.orig/doc/apps/s_server.pod	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/doc/apps/s_server.pod	2017-11-03 12:38:30.809334129 +0100
@@ -33,6 +33,7 @@ B<openssl> B<s_server>
 [B<-state>]
 [B<-CApath directory>]
 [B<-CAfile filename>]
+[B<-trusted_first>]
 [B<-nocert>]
 [B<-cipher cipherlist>]
 [B<-serverpref>]
@@ -178,6 +179,12 @@ and to use when attempting to build the
 is also used in the list of acceptable client CAs passed to the client when
 a certificate is requested.
 
+=item B<-trusted_first>
+
+Use certificates in CA file or CA directory before other certificates 
+when building the trust chain to verify client certificates.
+This is mainly useful in environments with Bridge CA or Cross-Certified CAs.
+
 =item B<-state>
 
 prints out the SSL session states.
Index: openssl-1.0.1i/doc/apps/s_time.pod
===================================================================
--- openssl-1.0.1i.orig/doc/apps/s_time.pod	2014-07-22 21:41:23.000000000 +0200
+++ openssl-1.0.1i/doc/apps/s_time.pod	2017-11-03 12:16:48.531871742 +0100
@@ -14,6 +14,7 @@ B<openssl> B<s_time>
 [B<-key filename>]
 [B<-CApath directory>]
 [B<-CAfile filename>]
+[B<-trusted_first>]
 [B<-reuse>]
 [B<-new>]
 [B<-verify depth>]
@@ -76,6 +77,12 @@ also used when building the client certi
 A file containing trusted certificates to use during server authentication
 and to use when attempting to build the client certificate chain.
 
+=item B<-trusted_first>
+
+Use certificates in CA file or CA directory over the certificates provided
+by the server when building the trust chain to verify server certificate.
+This is mainly useful in environments with Bridge CA or Cross-Certified CAs.
+
 =item B<-new>
 
 performs the timing test using a new session ID for each connection.
Index: openssl-1.0.1i/doc/apps/ts.pod
===================================================================
--- openssl-1.0.1i.orig/doc/apps/ts.pod	2017-11-03 12:16:47.795859820 +0100
+++ openssl-1.0.1i/doc/apps/ts.pod	2017-11-03 12:16:48.531871742 +0100
@@ -46,6 +46,7 @@ B<-verify>
 [B<-token_in>]
 [B<-CApath> trusted_cert_path]
 [B<-CAfile> trusted_certs.pem]
+[B<-trusted_first>]
 [B<-untrusted> cert_file.pem]
 
 =head1 DESCRIPTION
@@ -324,6 +325,12 @@ L<verify(1)|verify(1)> for additional de
 or B<-CApath> must be specified.
 (Optional)
 
+=item B<-trusted_first>
+
+Use certificates in CA file or CA directory before other certificates
+when building the trust chain to verify certificates.
+This is mainly useful in environments with Bridge CA or Cross-Certified CAs.
+
 =item B<-untrusted> cert_file.pem
 
 Set of additional untrusted certificates in PEM format which may be
Index: openssl-1.0.1i/doc/apps/verify.pod
===================================================================
--- openssl-1.0.1i.orig/doc/apps/verify.pod	2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i/doc/apps/verify.pod	2017-11-03 12:38:30.809334129 +0100
@@ -9,6 +9,7 @@ verify - Utility to verify certificates.
 B<openssl> B<verify>
 [B<-CApath directory>]
 [B<-CAfile file>]
+[B<-trusted_first>]
 [B<-purpose purpose>]
 [B<-policy arg>]
 [B<-ignore_critical>]
@@ -56,6 +57,12 @@ in PEM format concatenated together.
 A file of untrusted certificates. The file should contain multiple certificates
 in PEM format concatenated together.
 
+=item B<-trusted_first>
+
+Use certificates in CA file or CA directory before the certificates in the untrusted
+file when building the trust chain to verify certificates.
+This is mainly useful in environments with Bridge CA or Cross-Certified CAs.
+
 =item B<-purpose purpose>
 
 The intended use for the certificate. If this option is not specified,
