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authorKurt Roeckx <kurt@roeckx.be>2016-12-07 23:04:35 +0100
committerKurt Roeckx <kurt@roeckx.be>2016-12-08 19:06:17 +0100
commit231f13370b52cdf52f286b8cadb0e61308841736 (patch)
tree9175b2047719324895de11ec734dd82c8568f17d /fuzz
parent7d152a3c4f58bc2c4e94946e2a8dbf1a855a52f2 (diff)
downloadopenssl-231f13370b52cdf52f286b8cadb0e61308841736.tar.gz
Make asn1 fuzzer more reproducible
Reviewed-by: Rich Salz <rsalz@openssl.org> GH: #2041
Diffstat (limited to 'fuzz')
-rw-r--r--fuzz/asn1.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/fuzz/asn1.c b/fuzz/asn1.c
index f7b5571d4f..f29fde5d4d 100644
--- a/fuzz/asn1.c
+++ b/fuzz/asn1.c
@@ -27,6 +27,7 @@
#include <openssl/ts.h>
#include <openssl/x509v3.h>
#include <openssl/cms.h>
+#include <openssl/err.h>
#include "fuzzer.h"
static ASN1_ITEM_EXP *item_type[] = {
@@ -183,8 +184,21 @@ static ASN1_ITEM_EXP *item_type[] = {
NULL
};
+static ASN1_PCTX *pctx;
+
int FuzzerInitialize(int *argc, char ***argv)
{
+ pctx = ASN1_PCTX_new();
+ ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT |
+ ASN1_PCTX_FLAGS_SHOW_SEQUENCE | ASN1_PCTX_FLAGS_SHOW_SSOF |
+ ASN1_PCTX_FLAGS_SHOW_TYPE | ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME);
+ ASN1_PCTX_set_str_flags(pctx, ASN1_STRFLGS_UTF8_CONVERT |
+ ASN1_STRFLGS_SHOW_TYPE | ASN1_STRFLGS_DUMP_ALL);
+
+ OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
+ ERR_get_state();
+ CRYPTO_free_ex_index(0, -1);
+
return 1;
}
@@ -192,13 +206,6 @@ int FuzzerTestOneInput(const uint8_t *buf, size_t len)
{
int n;
- ASN1_PCTX *pctx = ASN1_PCTX_new();
-
- ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT |
- ASN1_PCTX_FLAGS_SHOW_SEQUENCE | ASN1_PCTX_FLAGS_SHOW_SSOF |
- ASN1_PCTX_FLAGS_SHOW_TYPE | ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME);
- ASN1_PCTX_set_str_flags(pctx, ASN1_STRFLGS_UTF8_CONVERT |
- ASN1_STRFLGS_SHOW_TYPE | ASN1_STRFLGS_DUMP_ALL);
for (n = 0; item_type[n] != NULL; ++n) {
const uint8_t *b = buf;
@@ -218,11 +225,12 @@ int FuzzerTestOneInput(const uint8_t *buf, size_t len)
}
}
- ASN1_PCTX_free(pctx);
+ ERR_clear_error();
return 0;
}
void FuzzerCleanup(void)
{
+ ASN1_PCTX_free(pctx);
}