lib-compression: ostream-lzma - Compressed output could have been truncated

The compression wasn't fully finished, resulting in truncated compressed
output that couldn't be fully read back. Reading would result in "Broken
pipe" errors.

Broken by 6080aa16e1bd50cd661acc31203d9f4986a9450a

diff --git a/src/lib-compression/ostream-lzma.c b/src/lib-compression/ostream-lzma.c
index 55716422583778fb3be78cb8bf61f5aa3237c7f3..fe8bc161ad4fdb62badfce4bd9f38b6ea9be158e 100644 (file)
--- a/src/lib-compression/ostream-lzma.c
+++ b/src/lib-compression/ostream-lzma.c
@@ -140,7 +140,10 @@ static int o_stream_lzma_send_flush(struct lzma_ostream *zstream, bool final)
                ret = lzma_code(zs, LZMA_FINISH);
                switch (ret) {
                case LZMA_OK:
+                       /* still unfinished - need to call lzma_code() again */
+                       break;
                case LZMA_STREAM_END:
+                       /* output is fully finished */
                        done = TRUE;
                        break;
                case LZMA_MEM_ERROR: