ddidderr/zstd-rs
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protect 32-bits mode

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This commit is contained in:
Yann Collet
2015-11-28 16:03:22 +01:00
parent 53fbf01370
commit 00fd7a2110
7 changed files with 55 additions and 46 deletions
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lib/zstd_compress.c
+2 -1
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@@ -143,6 +143,7 @@ void ZSTD_validateParams(ZSTD_parameters* params)
const U32 btPlus = (params->strategy == ZSTD_btlazy2);
/* validate params */
if (MEM_32bits()) if (params->windowLog > 25) params->windowLog = 25; /* 32 bits mode cannot flush > 24 bits */
if (params->windowLog > ZSTD_WINDOWLOG_MAX) params->windowLog = ZSTD_WINDOWLOG_MAX;
if (params->windowLog < ZSTD_WINDOWLOG_MIN) params->windowLog = ZSTD_WINDOWLOG_MIN;
@@ -153,7 +154,7 @@ void ZSTD_validateParams(ZSTD_parameters* params)
if (params->windowLog > srcLog) params->windowLog = srcLog;
}
if (params->windowLog < ZSTD_WINDOWLOG_ABSOLUTEMIN) params->windowLog = ZSTD_WINDOWLOG_ABSOLUTEMIN; /* required for frame header */
if (params->windowLog < ZSTD_WINDOWLOG_ABSOLUTEMIN) params->windowLog = ZSTD_WINDOWLOG_ABSOLUTEMIN; /* required for frame header */
if (params->contentLog > params->windowLog+btPlus) params->contentLog = params->windowLog+btPlus; /* <= ZSTD_CONTENTLOG_MAX */
if (params->contentLog < ZSTD_CONTENTLOG_MIN) params->contentLog = ZSTD_CONTENTLOG_MIN;
if (params->hashLog > ZSTD_HASHLOG_MAX) params->hashLog = ZSTD_HASHLOG_MAX;