Merge pull request #2447 from phkelley/pkt_assert

Fix assert when receiving uncommon sideband packet

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);