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Add comment to each added function and fix return value of wolfSSL_EVP_DecodedFinal

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This commit is contained in:
TakayukiMatsuo
2021-03-04 18:39:47 +09:00
parent c0a9f86de3
commit da75a4f803
1 changed files with 34 additions and 1 deletions
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35
wolfcrypt/src/evp.c
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@@ -6881,10 +6881,16 @@ int wolfSSL_EVP_get_hashinfo(const WOLFSSL_EVP_MD* evp,
/* Base64 encoding APIs */
#if defined(WOLFSSL_BASE64_ENCODE) || defined(WOLFSSL_BASE64_DECODE)
static struct WOLFSSL_EVP_ENCODE_CTX* wolfSSL_EVP_ENCODE_CTX_new_ex(void* heap);
/* wolfSSL_EVP_ENCODE_CTX_new allocates WOLFSSL_EVP_ENCODE_CTX
* Returns WOLFSSL_EVP_ENCODE_CTX structure on success, NULL on failure.
*/
struct WOLFSSL_EVP_ENCODE_CTX* wolfSSL_EVP_ENCODE_CTX_new(void)
{
return wolfSSL_EVP_ENCODE_CTX_new_ex(NULL);
}
/* wolfSSL_EVP_ENCODE_CTX_new_ex is a helper function of
* wolfSSL_EVP_ENCODE_CTX_new to allocate WOLFSSL_EVP_ENCODE_CTX structure.
*/
static struct WOLFSSL_EVP_ENCODE_CTX* wolfSSL_EVP_ENCODE_CTX_new_ex(void* heap)
{
WOLFSSL_EVP_ENCODE_CTX* ctx = NULL;
@@ -6898,6 +6904,8 @@ static struct WOLFSSL_EVP_ENCODE_CTX* wolfSSL_EVP_ENCODE_CTX_new_ex(void* heap)
}
return NULL;
}
/* wolfSSL_EVP_ENCODE_CTX_free frees specified WOLFSSL_EVP_ENCODE_CTX struc.
*/
void wolfSSL_EVP_ENCODE_CTX_free(WOLFSSL_EVP_ENCODE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_EVP_ENCODE_CTX_free");
@@ -6907,6 +6915,9 @@ void wolfSSL_EVP_ENCODE_CTX_free(WOLFSSL_EVP_ENCODE_CTX* ctx)
}
#endif /* WOLFSSL_BASE64_ENCODE || WOLFSSL_BASE64_DECODE */
#if defined(WOLFSSL_BASE64_ENCODE)
/* wolfSSL_EVP_EncodeInit initializes specified WOLFSSL_EVP_ENCODE_CTX ojbect
* for the subsequent wolfSSL_EVP_EncodeUpdate.
*/
void wolfSSL_EVP_EncodeInit(WOLFSSL_EVP_ENCODE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_EVP_EncodeInit");
@@ -6917,6 +6928,12 @@ void wolfSSL_EVP_EncodeInit(WOLFSSL_EVP_ENCODE_CTX* ctx)
XMEMSET(ctx->data,0, sizeof(ctx->data));
}
}
/* wolfSSL_EVP_EncodeUpdate encodes the input data in 64-byte units
* and outputs it to out. If less than 64 bytes of data remain, save it in
* ctx. The data given in the subsequent wolfSSL_EVP_EncodeUpdate
* is combined with the data stored in CTX and used for encoding.
* Returns 1 on success, 0 on error.
*/
int wolfSSL_EVP_EncodeUpdate(WOLFSSL_EVP_ENCODE_CTX* ctx,
unsigned char*out, int *outl, const unsigned char*in, int inl)
{
@@ -6981,6 +6998,8 @@ int wolfSSL_EVP_EncodeUpdate(WOLFSSL_EVP_ENCODE_CTX* ctx,
return 1; /* returns 1 on success, 0 on error */
}
/* wolfSSL_EVP_EncodeFinal encodes data in ctx and outputs to out.
*/
void wolfSSL_EVP_EncodeFinal(WOLFSSL_EVP_ENCODE_CTX* ctx,
unsigned char*out, int *outl)
{
@@ -7042,6 +7061,9 @@ static WC_INLINE int Base64_SkipNewline(const byte* in, word32* inLen,
*outJ = j;
return 0;
}
/* wolfSSL_EVP_DecodeInit initializes specified WOLFSSL_EVP_ENCODE_CTX struct
* for subsequent wolfSSL_EVP_DecodeUpdate.
*/
void wolfSSL_EVP_DecodeInit(WOLFSSL_EVP_ENCODE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_EVP_DecodeInit");
@@ -7051,6 +7073,13 @@ void wolfSSL_EVP_DecodeInit(WOLFSSL_EVP_ENCODE_CTX* ctx)
XMEMSET(ctx->data,0, sizeof(ctx->data));
}
}
/* wolfSSL_EVP_DecodeUpdate encodes the input data in 4-byte units
* and outputs it to out. If less than 4 bytes of data remain, save it in
* ctx. The data given in the subsequent wolfSSL_EVP_DecodeUpdate
* is combined with the data stored in CTX and used for decoding.
* Returns 1 or 0 on success, -1 on error. Return value 0 indicates that
* clients should call wolfSSL_EVP_DecodeFinal as next call.
*/
int wolfSSL_EVP_DecodeUpdate(WOLFSSL_EVP_ENCODE_CTX* ctx,
unsigned char*out, int *outl, const unsigned char*in, int inl)
{
@@ -7242,6 +7271,10 @@ int wolfSSL_EVP_DecodeUpdate(WOLFSSL_EVP_ENCODE_CTX* ctx,
return 1;
}
/* wolfSSL_EVP_DecodeFinal decode remaining data in ctx
* to outputs to out.
* Returns 1 on success, -1 on failure.
*/
int wolfSSL_EVP_DecodeFinal(WOLFSSL_EVP_ENCODE_CTX* ctx,
unsigned char*out, int *outl)
{
@@ -7272,7 +7305,7 @@ int wolfSSL_EVP_DecodeFinal(WOLFSSL_EVP_ENCODE_CTX* ctx,
}
else {
*outl = 0;
return 0;
return -1;
}
}
else {