lib/mbedtls
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Initialise return values to an error

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Initialising the return values to and error is best practice and makes
the library more robust.
This commit is contained in:
Janos Follath
2019-11-22 13:21:35 +00:00
parent a13b905d8d
commit 24eed8d2d2
43 changed files with 322 additions and 279 deletions
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9
library/ctr_drbg.c
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@@ -34,6 +34,7 @@
#include "mbedtls/ctr_drbg.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
@@ -319,7 +320,7 @@ int mbedtls_ctr_drbg_update_ret( mbedtls_ctr_drbg_context *ctx,
size_t add_len )
{
unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN];
int ret;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( add_len == 0 )
return( 0 );
@@ -367,7 +368,7 @@ static int mbedtls_ctr_drbg_reseed_internal( mbedtls_ctr_drbg_context *ctx,
{
unsigned char seed[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT];
size_t seedlen = 0;
int ret;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
@@ -452,7 +453,7 @@ int mbedtls_ctr_drbg_seed( mbedtls_ctr_drbg_context *ctx,
const unsigned char *custom,
size_t len )
{
int ret;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE];
size_t nonce_len;
@@ -590,7 +591,7 @@ exit:
int mbedtls_ctr_drbg_random( void *p_rng, unsigned char *output,
size_t output_len )
{
int ret;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng;
#if defined(MBEDTLS_THREADING_C)