Change func ptrs to have ret val in MD layer
This patch modifies the internal md context structure in md_wrap.c to
add return values to the function pointers. This enables us to use the
new API in the corresponding MD modules so that failures can be
found at any point in an MD computation.
diff --git a/include/mbedtls/md_internal.h b/include/mbedtls/md_internal.h
index e2441bb..c202598 100644
--- a/include/mbedtls/md_internal.h
+++ b/include/mbedtls/md_internal.h
@@ -58,17 +58,17 @@
int block_size;
/** Digest initialisation function */
- void (*starts_func)( void *ctx );
+ int (*starts_func)( void *ctx );
/** Digest update function */
- void (*update_func)( void *ctx, const unsigned char *input, size_t ilen );
+ int (*update_func)( void *ctx, const unsigned char *input, size_t ilen );
/** Digest finalisation function */
- void (*finish_func)( void *ctx, unsigned char *output );
+ int (*finish_func)( void *ctx, unsigned char *output );
/** Generic digest function */
- void (*digest_func)( const unsigned char *input, size_t ilen,
- unsigned char *output );
+ int (*digest_func)( const unsigned char *input, size_t ilen,
+ unsigned char *output );
/** Allocate a new context */
void * (*ctx_alloc_func)( void );
@@ -80,7 +80,7 @@
void (*clone_func)( void *dst, const void *src );
/** Internal use only */
- void (*process_func)( void *ctx, const unsigned char *input );
+ int (*process_func)( void *ctx, const unsigned char *input );
};
#if defined(MBEDTLS_MD2_C)