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Commitffac8ac

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Make fallback MD5 implementation thread-safe on big-endian systems
Replace a static scratch buffer with a local variable, because astatic buffer makes the function not thread-safe. This function isused in client-code in libpq, so it needs to be thread-safe. It wasuntil commitb67b57a, which replaced the implementation with theone from pgcrypto.Backpatch to v14, where we switched to the new implementation.Reviewed-by: Robert Haas, Michael PaquierDiscussion:https://www.postgresql.org/message-id/dfa2015d-ad21-4802-a4cc-3850fc5fff3f@iki.fi
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‎src/common/md5.c‎

Lines changed: 1 addition & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -150,10 +150,6 @@ static const uint8 md5_paddat[MD5_BUFLEN] = {
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0,0,0,0,0,0,0,0,
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};
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#ifdefWORDS_BIGENDIAN
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staticuint32X[16];
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#endif
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staticvoid
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md5_calc(constuint8*b64,pg_md5_ctx*ctx)
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{
@@ -167,6 +163,7 @@ md5_calc(const uint8 *b64, pg_md5_ctx *ctx)
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#else
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/* 4 byte words */
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/* what a brute force but fast! */
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uint32X[16];
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uint8*y= (uint8*)X;
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y[0]=b64[3];

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