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-rw-r--r--ext/openssl/ossl_asn1.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/ext/openssl/ossl_asn1.c b/ext/openssl/ossl_asn1.c
index 51f0475424d..03822b5c267 100644
--- a/ext/openssl/ossl_asn1.c
+++ b/ext/openssl/ossl_asn1.c
@@ -357,14 +357,15 @@ obj_to_asn1derstr(VALUE obj)
static VALUE
decode_bool(unsigned char* der, long length)
{
- int val;
- const unsigned char *p;
+ const unsigned char *p = der;
- p = der;
- if((val = d2i_ASN1_BOOLEAN(NULL, &p, length)) < 0)
- ossl_raise(eASN1Error, NULL);
+ assert(length == 3);
+ if (*p++ != 1)
+ ossl_raise(eASN1Error, "not a boolean");
+ if (*p++ != 1)
+ ossl_raise(eASN1Error, "length is not 1");
- return val ? Qtrue : Qfalse;
+ return *p ? Qtrue : Qfalse;
}
static VALUE