yaca: add yaca_zalloc

This allocator will be mostly used to allocate contexts/keys.

Change-Id: I5c3a5efcda5a243503ac80502c221157e18eaa2a
Signed-off-by: Mateusz Kulikowski <m.kulikowski@samsung.com>

diff --git a/api/yaca/crypto.h b/api/yaca/crypto.h
index cd30ff26bc87e81acfe004d5f583d6d104302c31..309d2f99617d2d92735a4fddbfc19c3af2a54b71 100644 (file)
--- a/api/yaca/crypto.h
+++ b/api/yaca/crypto.h
@@ -67,6 +67,16 @@ void yaca_exit(void);
 // TODO: this should be a macro to CRYPTO_*
 void *yaca_malloc(size_t size);
 
+/**
+ * @brief yaca_zalloc  Allocates the zeroed memory.
+ *
+ * @param[in] size  Size of the allocation (bytes).
+ *
+ * @return NULL on failure, pointer to allocated and zeroed memory otherwise.
+ */
+// TODO: this should be a macro to CRYPTO_*
+void *yaca_zalloc(size_t size);
+
 /**
  * @brief yaca_realloc  Re-allocates the memory.
  *

diff --git a/src/crypto.c b/src/crypto.c
index 4a490717a9a502a08b8a726a61e20b119d14e471..550abf0ae9f0a4d85c13acea00a08e9253a7656c 100644 (file)
--- a/src/crypto.c
+++ b/src/crypto.c
@@ -17,6 +17,7 @@
  */
 
 #include <assert.h>
+#include <string.h>
 
 #include <openssl/crypto.h>
 #include <openssl/evp.h>
@@ -54,6 +55,14 @@ API void *yaca_malloc(size_t size)
        return OPENSSL_malloc(size);
 }
 
+API void *yaca_zalloc(size_t size)
+{
+       void *blob = OPENSSL_malloc(size);
+       if (blob != NULL)
+               memset(blob, 0, size);
+       return blob;
+}
+
 API void *yaca_realloc(void *addr, size_t size)
 {
        return OPENSSL_realloc(addr, size);