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better error code when compressing using NULL CDict

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which is not allowed (but detected, and generates an error).
This commit is contained in:
Yann Collet 2017-05-12 13:53:46 -07:00
parent db8e21d5a0
commit ef738c1b23
1 changed files with 4 additions and 3 deletions
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7
lib/compress/zstd_compress.c
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@ -177,6 +177,7 @@ size_t ZSTD_sizeof_CCtx(const ZSTD_CCtx* cctx)
+ cctx->outBuffSize + cctx->inBuffSize;
}
/* older variant; will be deprecated */
size_t ZSTD_setCCtxParameter(ZSTD_CCtx* cctx, ZSTD_CCtxParameter param, unsigned value)
{
switch(param)
@ -3078,7 +3079,7 @@ size_t ZSTD_compressBegin_usingCDict_advanced(
ZSTD_CCtx* const cctx, const ZSTD_CDict* const cdict,
ZSTD_frameParameters const fParams, unsigned long long const pledgedSrcSize)
{
if (cdict==NULL) return ERROR(GENERIC); /* does not support NULL cdict */
if (cdict==NULL) return ERROR(dictionary_wrong); /* does not support NULL cdict */
DEBUGLOG(5, "ZSTD_compressBegin_usingCDict_advanced : dictIDFlag == %u \n", !fParams.noDictIDFlag);
if (cdict->dictContentSize)
CHECK_F( ZSTD_copyCCtx_internal(cctx, cdict->refContext, fParams, pledgedSrcSize) )
@ -3231,7 +3232,7 @@ static size_t ZSTD_initCStream_stage2(ZSTD_CStream* zcs,
* same as ZSTD_initCStream_usingCDict(), with control over frame parameters */
size_t ZSTD_initCStream_usingCDict_advanced(ZSTD_CStream* zcs, const ZSTD_CDict* cdict, unsigned long long pledgedSrcSize, ZSTD_frameParameters fParams)
{
if (!cdict) return ERROR(GENERIC); /* cannot handle NULL cdict (does not know what to do) */
if (!cdict) return ERROR(dictionary_wrong); /* cannot handle NULL cdict (does not know what to do) */
{ ZSTD_parameters params = ZSTD_getParamsFromCDict(cdict);
params.fParams = fParams;
zcs->cdict = cdict;
@ -3242,7 +3243,7 @@ size_t ZSTD_initCStream_usingCDict_advanced(ZSTD_CStream* zcs, const ZSTD_CDict*
/* note : cdict must outlive compression session */
size_t ZSTD_initCStream_usingCDict(ZSTD_CStream* zcs, const ZSTD_CDict* cdict)
{
ZSTD_frameParameters const fParams = { 0 /* content */, 0 /* checksum */, 0 /* noDictID */ };
ZSTD_frameParameters const fParams = { 0 /* contentSize */, 0 /* checksum */, 0 /* hideDictID */ };
return ZSTD_initCStream_usingCDict_advanced(zcs, cdict, 0, fParams);
}