- const char *str, int len)
- {
- int i, nidcount;
- const int *nids;
- EVP_PKEY_ASN1_METHOD *ameth;
- if (!e->pkey_asn1_meths)
- return NULL;
- if (len == -1)
- len = strlen(str);
- nidcount = e->pkey_asn1_meths(e, NULL, &nids, 0);
- for (i = 0; i < nidcount; i++)
- {
- e->pkey_asn1_meths(e, &ameth, NULL, nids[i]);
- if (((int)strlen(ameth->pem_str) == len) &&
- !strncasecmp(ameth->pem_str, str, len))
- return ameth;
- }
- return NULL;
- }
+ const char *str,
+ int len)
+{
+ int i, nidcount;
+ const int *nids;
+ EVP_PKEY_ASN1_METHOD *ameth;
+ if (!e->pkey_asn1_meths)
+ return NULL;
+ if (len == -1)
+ len = strlen(str);
+ nidcount = e->pkey_asn1_meths(e, NULL, &nids, 0);
+ for (i = 0; i < nidcount; i++) {
+ e->pkey_asn1_meths(e, &ameth, NULL, nids[i]);
+ if (((int)strlen(ameth->pem_str) == len)
+ && strncasecmp(ameth->pem_str, str, len) == 0)
+ return ameth;
+ }
+ return NULL;
+}
+
+typedef struct {
+ ENGINE *e;
+ const EVP_PKEY_ASN1_METHOD *ameth;
+ const char *str;
+ int len;
+} ENGINE_FIND_STR;
+
+static void look_str_cb(int nid, STACK_OF(ENGINE) *sk, ENGINE *def, void *arg)
+{
+ ENGINE_FIND_STR *lk = arg;
+ int i;
+ if (lk->ameth)
+ return;
+ for (i = 0; i < sk_ENGINE_num(sk); i++) {
+ ENGINE *e = sk_ENGINE_value(sk, i);
+ EVP_PKEY_ASN1_METHOD *ameth;
+ e->pkey_asn1_meths(e, &ameth, NULL, nid);
+ if (((int)strlen(ameth->pem_str) == lk->len)
+ && strncasecmp(ameth->pem_str, lk->str, lk->len) == 0) {
+ lk->e = e;
+ lk->ameth = ameth;
+ return;
+ }
+ }
+}
+
+const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe,
+ const char *str,
+ int len)
+{
+ ENGINE_FIND_STR fstr;
+ fstr.e = NULL;
+ fstr.ameth = NULL;
+ fstr.str = str;
+ fstr.len = len;
+ CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
+ engine_table_doall(pkey_asn1_meth_table, look_str_cb, &fstr);
+ /* If found obtain a structural reference to engine */
+ if (fstr.e) {
+ fstr.e->struct_ref++;
+ engine_ref_debug(fstr.e, 0, 1)
+ }
+ *pe = fstr.e;
+ CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
+ return fstr.ameth;
+}