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Make asn1 fuzzer more reproducible

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Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #2041
This commit is contained in:
Kurt Roeckx 2016-12-07 23:04:35 +01:00
parent 7d152a3c4f
commit 231f13370b
1 changed files with 16 additions and 8 deletions
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24
fuzz/asn1.c
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@ -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);
}