From: Martin Lindsay <m.t.lindsay@gmail.com>
Date: Mon, 22 Feb 2021 15:57:35 +0000 (-0500)
Subject: ZSTD_seekable_decompress() example that hangs.
X-Git-Tag: v1.4.10~29^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3cbdbb888bae6068149b7a60476c4b1ac4d14a35;p=thirdparty%2Fzstd.git

ZSTD_seekable_decompress() example that hangs.
---

diff --git a/contrib/seekable_format/tests/seekable_tests.c b/contrib/seekable_format/tests/seekable_tests.c
index f2556b518..44efe2b01 100644
--- a/contrib/seekable_format/tests/seekable_tests.c
+++ b/contrib/seekable_format/tests/seekable_tests.c
@@ -53,6 +53,60 @@ int main(int argc, const char** argv)
     }
     printf("Success!\n");
 
+    printf("Test %u - check that seekable decompress does not hang: ", testNb++);
+    {   /* Github issue #FIXME */
+        const size_t compressed_size = 27;
+        const uint8_t compressed_data[27] = {
+	    '\x28',
+	    '\xb5',
+	    '\x2f',
+	    '\xfd',
+	    '\x00',
+	    '\x32',
+	    '\x91',
+	    '\x00',
+	    '\x00',
+	    '\x00',
+	    '\x5e',
+	    '\x2a',
+	    '\x4d',
+	    '\x18',
+	    '\x09',
+	    '\x00',
+	    '\x00',
+	    '\x00',
+	    '\x00',
+	    '\x00',
+	    '\x00',
+	    '\x00',
+	    '\x00',
+	    '\xb1',
+	    '\xea',
+	    '\x92',
+	    '\x8f',
+	};
+        const size_t uncompressed_size = 8936;
+        uint8_t uncompressed_data[8936];
+
+        ZSTD_seekable* stream = ZSTD_seekable_create();
+        size_t status = ZSTD_seekable_initBuff(stream, compressed_data, compressed_size);
+        if (ZSTD_isError(status)) {
+            ZSTD_seekable_free(stream);
+            goto _test_error;
+        }
+
+        const size_t offset = 2;
+        /* Should return an error, but not hang */
+        status = ZSTD_seekable_decompress(stream, uncompressed_data, uncompressed_size, offset);
+        if (!ZSTD_isError(status)) {
+            ZSTD_seekable_free(stream);
+            goto _test_error;
+        }
+
+        ZSTD_seekable_free(stream);
+    }
+    printf("Success!\n");
+
     /* TODO: Add more tests */
     printf("Finished tests\n");
     return 0;