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- Added regular error codes for generic message digest layer

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This commit is contained in:
Paul Bakker
2011-06-09 15:55:11 +00:00
parent c65ab340a7
commit 9c021adeff
3 changed files with 60 additions and 28 deletions
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8
library/error.c
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@ -137,6 +137,14 @@ void error_strerror( int ret, char *buf, size_t buflen )
#if defined(POLARSSL_MD_C)
if( use_ret == -(POLARSSL_ERR_MD_FEATURE_UNAVAILABLE) )
snprintf( buf, buflen, "MD - The selected feature is not available" );
if( use_ret == -(POLARSSL_ERR_MD_BAD_INPUT_DATA) )
snprintf( buf, buflen, "MD - Bad input parameters to function" );
if( use_ret == -(POLARSSL_ERR_MD_ALLOC_FAILED) )
snprintf( buf, buflen, "MD - Failed to allocate memory" );
if( use_ret == -(POLARSSL_ERR_MD_FILE_OPEN_FAILED) )
snprintf( buf, buflen, "MD - Opening of file failed" );
if( use_ret == -(POLARSSL_ERR_MD_FILE_READ_FAILED) )
snprintf( buf, buflen, "MD - Failure when reading from file" );
#endif /* POLARSSL_MD_C */
#if defined(POLARSSL_PEM_C)

38
library/md.c
View File

@ -153,13 +153,13 @@ const md_info_t *md_info_from_type( md_type_t md_type )
int md_init_ctx( md_context_t *ctx, const md_info_t *md_info )
{
if( md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
if( ctx == NULL || ctx->md_ctx != NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
if( ( ctx->md_ctx = md_info->ctx_alloc_func() ) == NULL )
return 1;
return POLARSSL_ERR_MD_ALLOC_FAILED;
ctx->md_info = md_info;
@ -171,7 +171,7 @@ int md_init_ctx( md_context_t *ctx, const md_info_t *md_info )
int md_free_ctx( md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
ctx->md_info->ctx_free_func( ctx->md_ctx );
ctx->md_ctx = NULL;
@ -182,7 +182,7 @@ int md_free_ctx( md_context_t *ctx )
int md_starts( md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
ctx->md_info->starts_func( ctx->md_ctx );
@ -192,7 +192,7 @@ int md_starts( md_context_t *ctx )
int md_update( md_context_t *ctx, const unsigned char *input, size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
ctx->md_info->update_func( ctx->md_ctx, input, ilen );
@ -202,7 +202,7 @@ int md_update( md_context_t *ctx, const unsigned char *input, size_t ilen )
int md_finish( md_context_t *ctx, unsigned char *output )
{
if( ctx == NULL || ctx->md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
ctx->md_info->finish_func( ctx->md_ctx, output );
@ -213,7 +213,7 @@ int md( const md_info_t *md_info, const unsigned char *input, size_t ilen,
unsigned char *output )
{
if ( md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
md_info->digest_func( input, ilen, output );
@ -222,11 +222,19 @@ int md( const md_info_t *md_info, const unsigned char *input, size_t ilen,
int md_file( const md_info_t *md_info, const char *path, unsigned char *output )
{
int ret;
if( md_info == NULL )
return 3;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
#if defined(POLARSSL_FS_IO)
return md_info->file_func( path, output );
ret = md_info->file_func( path, output );
if( ret == 2 )
return POLARSSL_ERR_MD_FILE_OPEN_FAILED;
if( ret == 3 )
return POLARSSL_ERR_MD_FILE_READ_FAILED;
return ret;
#else
((void) path);
((void) output);
@ -238,7 +246,7 @@ int md_file( const md_info_t *md_info, const char *path, unsigned char *output )
int md_hmac_starts( md_context_t *ctx, const unsigned char *key, size_t keylen )
{
if( ctx == NULL || ctx->md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
ctx->md_info->hmac_starts_func( ctx->md_ctx, key, keylen);
@ -248,7 +256,7 @@ int md_hmac_starts( md_context_t *ctx, const unsigned char *key, size_t keylen )
int md_hmac_update( md_context_t *ctx, const unsigned char *input, size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
ctx->md_info->hmac_update_func( ctx->md_ctx, input, ilen );
@ -258,7 +266,7 @@ int md_hmac_update( md_context_t *ctx, const unsigned char *input, size_t ilen )
int md_hmac_finish( md_context_t *ctx, unsigned char *output)
{
if( ctx == NULL || ctx->md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
ctx->md_info->hmac_finish_func( ctx->md_ctx, output);
@ -268,7 +276,7 @@ int md_hmac_finish( md_context_t *ctx, unsigned char *output)
int md_hmac_reset( md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
ctx->md_info->hmac_reset_func( ctx->md_ctx);
@ -280,7 +288,7 @@ int md_hmac( const md_info_t *md_info, const unsigned char *key, size_t keylen,
unsigned char *output )
{
if( md_info == NULL )
return 1;
return POLARSSL_ERR_MD_BAD_INPUT_DATA;
md_info->hmac_func( key, keylen, input, ilen, output );