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-rw-r--r--src/indexer.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/indexer.c b/src/indexer.c
index eb8b23e92..8daff3dc4 100644
--- a/src/indexer.c
+++ b/src/indexer.c
@@ -435,6 +435,8 @@ static int write_at(git_indexer *idx, const void *data, git_off_t offset, size_t
git_map map;
int error;
+ assert(data && size);
+
/* the offset needs to be at the beginning of the a page boundary */
page_start = (offset / page_size) * page_size;
page_offset = offset - page_start;
@@ -453,6 +455,9 @@ static int append_to_pack(git_indexer *idx, const void *data, size_t size)
{
git_off_t current_size = idx->pack->mwf.size;
+ if (!size)
+ return 0;
+
/* add the extra space we need at the end */
if (p_ftruncate(idx->pack->mwf.fd, current_size + size) < 0) {
giterr_system_set(errno);