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authorDr. Stephen Henson <steve@openssl.org>2001-01-10 01:06:31 +0000
committerDr. Stephen Henson <steve@openssl.org>2001-01-10 01:06:31 +0000
commitcbf0f45f90ce316360f07c8b6c5f37b913d9c24d (patch)
tree722770356da2ec03615d60123a1f65e269817cd0
parentb2293b1e9bb0f2ddb9fdae8130f6103cce2df608 (diff)
downloadopenssl-cbf0f45f90ce316360f07c8b6c5f37b913d9c24d.tar.gz
Fix uni2asc() so it can properly convert zero length
unicode strings. Certain PKCS#12 files contain these in BMPStrings and it used to crash on them.
-rw-r--r--CHANGES4
-rw-r--r--crypto/pkcs12/p12_utl.c2
2 files changed, 5 insertions, 1 deletions
diff --git a/CHANGES b/CHANGES
index 75fdcc509b..e5371b98dc 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3,6 +3,10 @@
Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
+ *) Fix to uni2asc() to cope with zero length Unicode strings.
+ These are present in some PKCS#12 files.
+ [Steve Henson]
+
*) Finish off removing the remaining LHASH function pointer casts.
There should no longer be any prototype-casting required when using
the LHASH abstraction, and any casts that remain are "bugs". See
diff --git a/crypto/pkcs12/p12_utl.c b/crypto/pkcs12/p12_utl.c
index 2c2166e8d7..8ed3e0d0c7 100644
--- a/crypto/pkcs12/p12_utl.c
+++ b/crypto/pkcs12/p12_utl.c
@@ -83,7 +83,7 @@ char *uni2asc (unsigned char *uni, int unilen)
char *asctmp;
asclen = unilen / 2;
/* If no terminating zero allow for one */
- if (uni[unilen - 1]) asclen++;
+ if (!unilen || uni[unilen - 1]) asclen++;
uni++;
if (!(asctmp = OPENSSL_malloc (asclen))) return NULL;
for (i = 0; i < unilen; i+=2) asctmp[i>>1] = uni[i];