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-rw-r--r--src/libstrongswan/crypto/prfs/mac_prf.c3
-rw-r--r--src/libstrongswan/crypto/prfs/prf.h4
2 files changed, 5 insertions, 2 deletions
diff --git a/src/libstrongswan/crypto/prfs/mac_prf.c b/src/libstrongswan/crypto/prfs/mac_prf.c
index 489797fb7..cd39586af 100644
--- a/src/libstrongswan/crypto/prfs/mac_prf.c
+++ b/src/libstrongswan/crypto/prfs/mac_prf.c
@@ -42,7 +42,7 @@ METHOD(prf_t, get_bytes, bool,
return TRUE;
}
-METHOD(prf_t, allocate_bytes, void,
+METHOD(prf_t, allocate_bytes, bool,
private_prf_t *this, chunk_t seed, chunk_t *chunk)
{
if (!chunk)
@@ -54,6 +54,7 @@ METHOD(prf_t, allocate_bytes, void,
*chunk = chunk_alloc(this->mac->get_mac_size(this->mac));
this->mac->get_mac(this->mac, seed, chunk->ptr);
}
+ return TRUE;
}
METHOD(prf_t, get_block_size, size_t,
diff --git a/src/libstrongswan/crypto/prfs/prf.h b/src/libstrongswan/crypto/prfs/prf.h
index 8b98b41aa..05380b5f2 100644
--- a/src/libstrongswan/crypto/prfs/prf.h
+++ b/src/libstrongswan/crypto/prfs/prf.h
@@ -87,8 +87,10 @@ struct prf_t {
*
* @param seed a chunk containing the seed for the next bytes
* @param chunk chunk which will hold generated bytes
+ * @return TRUE if bytes allocated and generated successfully
*/
- void (*allocate_bytes) (prf_t *this, chunk_t seed, chunk_t *chunk);
+ __attribute__((warn_unused_result))
+ bool (*allocate_bytes) (prf_t *this, chunk_t seed, chunk_t *chunk);
/**
* Get the block size of this prf_t object.