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authorShea Levy <shea@shealevy.com>2018-03-15T03·53-0400
committerShea Levy <shea@shealevy.com>2018-03-15T03·53-0400
commitcfdbfa6b2cc27ae5b98c5f27599bbc0fc6a104c1 (patch)
treefa0e753bcbb8091d6768b737eb6bf58897335d73 /src/libstore/download.cc
parentd25d9f7cecad24e16b8e831077996e3b50c04468 (diff)
Catch more possible instances of passing NULL to memcpy.
Actually fixes #1976.
Diffstat (limited to 'src/libstore/download.cc')
-rw-r--r--src/libstore/download.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libstore/download.cc b/src/libstore/download.cc
index 5ab625f42288..9d9f1153f4d5 100644
--- a/src/libstore/download.cc
+++ b/src/libstore/download.cc
@@ -195,6 +195,7 @@ struct CurlDownloader : public Downloader
             if (readOffset == request.data->length())
                 return 0;
             auto count = std::min(size * nitems, request.data->length() - readOffset);
+            assert(count);
             memcpy(buffer, request.data->data() + readOffset, count);
             readOffset += count;
             return count;