27 lines
941 B
Diff
27 lines
941 B
Diff
From 02a6049eb3884c430268bb0fe3296d597a03174c Mon Sep 17 00:00:00 2001
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From: Mark Adler <madler@alumni.caltech.edu>
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Date: Mon, 26 Dec 2022 23:36:01 -0800
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Subject: [PATCH] Fix crash when gzsetparams() attempted for transparent write.
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gzsetparams() now returns a Z_STREAM_ERROR in this case.i
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Reference:https://github.com/madler/zlib/commit/02a6049eb3884c430268bb0fe3296d597a03174c
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Conflict:NA
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---
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gzwrite.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/gzwrite.c b/gzwrite.c
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index eb8a0e589..3030d74d6 100644
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--- a/gzwrite.c
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+++ b/gzwrite.c
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@@ -609,7 +609,7 @@ int ZEXPORT gzsetparams(file, level, strategy)
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strm = &(state->strm);
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/* check that we're writing and that there's no error */
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- if (state->mode != GZ_WRITE || state->err != Z_OK)
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+ if (state->mode != GZ_WRITE || state->err != Z_OK || state->direct)
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return Z_STREAM_ERROR;
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/* if no change is requested, then do nothing */
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