AK: Make ByteBuffer::try_* functions return ErrorOr<void>

Same as Vector, ByteBuffer now also signals allocation failure by
returning an ENOMEM Error instead of a bool, allowing us to use the
TRY() and MUST() patterns.

2 files changed, 3 insertions, 3 deletions

diff --git a/Userland/Libraries/LibCrypto/ASN1/PEM.cpp b/Userland/Libraries/LibCrypto/ASN1/PEM.cpp
index c901febe41..90f957cfc9 100644
--- a/Userland/Libraries/LibCrypto/ASN1/PEM.cpp
+++ b/Userland/Libraries/LibCrypto/ASN1/PEM.cpp
@@ -39,7 +39,7 @@ ByteBuffer decode_pem(ReadonlyBytes data)
                 dbgln("Failed to decode PEM, likely bad Base64");
                 return {};
             }
-            if (!decoded.try_append(b64decoded.value().data(), b64decoded.value().size())) {
+            if (decoded.try_append(b64decoded.value().data(), b64decoded.value().size()).is_error()) {
                 dbgln("Failed to decode PEM, likely OOM condition");
                 return {};
             }
diff --git a/Userland/Libraries/LibCrypto/PK/Code/EMSA_PSS.h b/Userland/Libraries/LibCrypto/PK/Code/EMSA_PSS.h
index b1b1a569a9..3193c772d4 100644
--- a/Userland/Libraries/LibCrypto/PK/Code/EMSA_PSS.h
+++ b/Userland/Libraries/LibCrypto/PK/Code/EMSA_PSS.h
@@ -152,8 +152,8 @@ public:
         for (size_t counter = 0; counter < length / HashFunction::DigestSize - 1; ++counter) {
             hash_fn.update(seed);
             hash_fn.update((u8*)&counter, 4);
-            if (!T.try_append(hash_fn.digest().data, HashFunction::DigestSize)) {
-                dbgln("EMSA_PSS: MGF1 digest failed, not enough space");
+            if (auto result = T.try_append(hash_fn.digest().data, HashFunction::DigestSize); result.is_error()) {
+                dbgln("EMSA_PSS: MGF1 digest failed: {}", result.error());
                 return;
             }
         }