From 2ab7af7b08c5213ae85c2a4aa1c15fe8dfe92137 Mon Sep 17 00:00:00 2001
From: "Dr. Stephen Henson" <steve@openssl.org>
Date: Wed, 10 Feb 2016 23:54:52 +0000
Subject: [PATCH] Print out bad content octets.

If asn1parse doesn't like a structure print out the content octets
for diagnostic purposes.

Reviewed-by: Richard Levitte <levitte@openssl.org>
---
 crypto/asn1/asn1_par.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/crypto/asn1/asn1_par.c b/crypto/asn1/asn1_par.c
index e65dacd83a..d0de27207a 100644
--- a/crypto/asn1/asn1_par.c
+++ b/crypto/asn1/asn1_par.c
@@ -124,7 +124,7 @@ static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
     ASN1_OBJECT *o = NULL;
     ASN1_OCTET_STRING *os = NULL;
     /* ASN1_BMPSTRING *bmp=NULL; */
-    int dump_indent;
+    int dump_indent, dump_cont = 0;
 
     if (depth > ASN1_PARSE_MAXDEPTH) {
             BIO_puts(bp, "BAD RECURSION DEPTH\n");
@@ -221,11 +221,13 @@ static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
                 } else {
                     if (BIO_write(bp, ":BAD OBJECT", 11) <= 0)
                         goto end;
+                    dump_cont = 1;
                 }
             } else if (tag == V_ASN1_BOOLEAN) {
                 if (len != 1) {
-                    if (BIO_write(bp, "Bad boolean\n", 12) <= 0)
+                    if (BIO_puts(bp, "BAD BOOLEAN") <= 0)
                         goto end;
+                    dump_cont = 1;
                 }
                 BIO_printf(bp, ":%u", p[0]);
             } else if (tag == V_ASN1_BMPSTRING) {
@@ -309,6 +311,7 @@ static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
                 } else {
                     if (BIO_write(bp, "BAD INTEGER", 11) <= 0)
                         goto end;
+                    dump_cont = 1;
                 }
                 ASN1_INTEGER_free(bs);
             } else if (tag == V_ASN1_ENUMERATED) {
@@ -334,6 +337,7 @@ static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
                 } else {
                     if (BIO_write(bp, "BAD ENUMERATED", 14) <= 0)
                         goto end;
+                    dump_cont = 1;
                 }
                 ASN1_ENUMERATED_free(bs);
             } else if (len > 0 && dump) {
@@ -347,6 +351,18 @@ static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
                     goto end;
                 nl = 1;
             }
+            if (dump_cont) {
+                int i;
+                const unsigned char *tmp = op + hl;
+                if (BIO_puts(bp, ":[") <= 0)
+                    goto end;
+                for (i = 0; i < len; i++) {
+                    if (BIO_printf(bp, "%02X", tmp[i]) <= 0)
+                        goto end;
+                }
+                if (BIO_puts(bp, "]") <= 0)
+                    goto end;
+            }
 
             if (!nl) {
                 if (BIO_write(bp, "\n", 1) <= 0)
-- 
2.25.1