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X509: add check if function succeeds

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Addresses feedback of GH-1634
This commit is contained in:
Johanna Amann 2021-07-05 09:40:04 +01:00
parent 8972676e92
commit 43ef7d43fb
1 changed files with 5 additions and 0 deletions
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5
src/file_analysis/analyzer/x509/functions.bif
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@ -1088,6 +1088,11 @@ function x509_check_cert_hostname%(cert_opaque: opaque of x509, hostname: string
{ {
char buf[2048]; char buf[2048];
BIO *bio = BIO_new(BIO_s_mem()); BIO *bio = BIO_new(BIO_s_mem());
if ( ! bio )
{
zeek::emit_builtin_error(zeek::util::fmt("Could create bio"));
return zeek::make_intrusive<zeek::StringVal>("");
}
ASN1_STRING_print(bio, X509_NAME_ENTRY_get_data(X509_NAME_get_entry(subject, found_nid))); ASN1_STRING_print(bio, X509_NAME_ENTRY_get_data(X509_NAME_get_entry(subject, found_nid)));
size_t len = BIO_gets(bio, buf, sizeof(buf)); size_t len = BIO_gets(bio, buf, sizeof(buf));
BIO_free(bio); BIO_free(bio);