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Do not leave empty, invalid chunks in buffers during buf_pullup

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This fixes an assertion failure bug in 15083; bugfix on 0.2.0.10-alpha.

Patch from 'cypherpunks'
This commit is contained in:
Nick Mathewson
2015-03-03 22:20:17 +01:00
parent c3f8f5ab0e
commit 71ee53fe9b
2 changed files with 7 additions and 1 deletions
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src/or/buffers.c
+1 -1
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@@ -426,7 +426,7 @@ buf_pullup(buf_t *buf, size_t bytes, int nulterminate)
size_t n = bytes - dest->datalen;
src = dest->next;
tor_assert(src);
if (n > src->datalen) {
if (n >= src->datalen) {
memcpy(CHUNK_WRITE_PTR(dest), src->data, src->datalen);
dest->datalen += src->datalen;
dest->next = src->next;