Add workaround for libressl missing new openssl APIs.

If supporting libressl is trivial, then mupdf should support it.
Should libressl and openssl diverge too much, we might need to
reconsider this decision.

1 files changed, 16 insertions, 0 deletions

diff --git a/source/helpers/pkcs7/pkcs7-openssl.c b/source/helpers/pkcs7/pkcs7-openssl.c
index 5856721ea..4875bb534 100644
--- a/source/helpers/pkcs7/pkcs7-openssl.c
+++ b/source/helpers/pkcs7/pkcs7-openssl.c
@@ -116,6 +116,22 @@ static const char AdobeCA_p7c[] = {
 #warning detect version of openssl at compile time
 #endif
 
+#ifdef LIBRESSL_VERSION_NUMBER
+
+static inline const STACK_OF(PKCS12_SAFEBAG) *
+PKCS12_SAFEBAG_get0_safes(const PKCS12_SAFEBAG *bag)
+{
+        return (OBJ_obj2nid(bag->type) == NID_safeContentsBag) ? bag->value.safes : NULL;
+}
+
+static inline const PKCS8_PRIV_KEY_INFO *
+PKCS12_SAFEBAG_get0_p8inf(const PKCS12_SAFEBAG *bag)
+{
+        return (OBJ_obj2nid(bag->type) == NID_keyBag) ? bag->value.keybag : NULL;
+}
+
+#endif
+
 typedef struct
 {
         fz_context *ctx;