// STRING_PIECE_split finds the first occurence of |sep| in |in| and, if found,
// sets |*out_left| and |*out_right| to |in| split before and after it. It
// returns one if |sep| was found and zero otherwise.
static int STRING_PIECE_split(STRING_PIECE *out_left, STRING_PIECE *out_right,
const STRING_PIECE *in, char sep) {
const char *p = OPENSSL_memchr(in->data, sep, in->len);
if (p == NULL) {
return 0;
}
// |out_left| or |out_right| may alias |in|, so make a copy.
STRING_PIECE in_copy = *in;
out_left->data = in_copy.data;
out_left->len = p - in_copy.data;
out_right->data = in_copy.data + out_left->len + 1;
out_right->len = in_copy.len - out_left->len - 1;
return 1;
}
static int int_x509_param_set_hosts(X509_VERIFY_PARAM_ID *id, int mode,
const char *name, size_t namelen)
{
char *copy;
/*
* Refuse names with embedded NUL bytes.
* XXX: Do we need to push an error onto the error stack?
*/
if (name && OPENSSL_memchr(name, '\0', namelen))
return 0;
if (mode == SET_HOST && id->hosts) {
string_stack_free(id->hosts);
id->hosts = NULL;
}
if (name == NULL || namelen == 0)
return 1;
copy = BUF_strndup(name, namelen);
if (copy == NULL)
return 0;
if (id->hosts == NULL &&
(id->hosts = sk_OPENSSL_STRING_new_null()) == NULL) {
OPENSSL_free(copy);
return 0;
}
if (!sk_OPENSSL_STRING_push(id->hosts, copy)) {
OPENSSL_free(copy);
if (sk_OPENSSL_STRING_num(id->hosts) == 0) {
sk_OPENSSL_STRING_free(id->hosts);
id->hosts = NULL;
}
return 0;
}
return 1;
}
