The last zlib_inflate update broke certain corner cases for ppp_deflate
decompression handling. This patch fixes some logic to make things work
properly again. Users other than ppp_deflate (the only Z_PACKET_FLUSH
user) should be unaffected.
Fixes bug 8405 (confirmed by the reporter).
Signed-off-by: Richard Purdie <[EMAIL PROTECTED]>
Index: linux/lib/zlib_inflate/inflate.c
===================================================================
--- linux.orig/lib/zlib_inflate/inflate.c 2007-05-03 23:08:27.000000000
+0100
+++ linux/lib/zlib_inflate/inflate.c 2007-05-03 23:09:39.000000000 +0100
@@ -743,12 +743,14 @@ int zlib_inflate(z_streamp strm, int flu
strm->data_type = state->bits + (state->last ? 64 : 0) +
(state->mode == TYPE ? 128 : 0);
- if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
- ret = Z_BUF_ERROR;
if (flush == Z_PACKET_FLUSH && ret == Z_OK &&
- (strm->avail_out != 0 || strm->avail_in == 0))
+ strm->avail_out != 0 && strm->avail_in == 0)
return zlib_inflateSyncPacket(strm);
+
+ if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
+ ret = Z_BUF_ERROR;
+
return ret;
}
-
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