From b4ff12c8eefff9cba73ba3cb7492111adfa31d87 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Tue, 6 Feb 2024 07:35:27 +0100 Subject: reftable: introduce macros to allocate arrays Similar to the preceding commit, let's carry over macros to allocate arrays with `REFTABLE_ALLOC_ARRAY()` and `REFTABLE_CALLOC_ARRAY()`. This requires us to change the signature of `reftable_calloc()`, which only takes a single argument right now and thus puts the burden on the caller to calculate the final array's size. This is a net improvement though as it means that we can now provide proper overflow checks when multiplying the array size with the member size. Convert callsites of `reftable_calloc()` to the new signature and start using the new macros where possible. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- reftable/blocksource.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'reftable/blocksource.c') diff --git a/reftable/blocksource.c b/reftable/blocksource.c index 8c41e3c70f..eeed254ba9 100644 --- a/reftable/blocksource.c +++ b/reftable/blocksource.c @@ -29,7 +29,7 @@ static int strbuf_read_block(void *v, struct reftable_block *dest, uint64_t off, { struct strbuf *b = v; assert(off + size <= b->len); - dest->data = reftable_calloc(size); + REFTABLE_CALLOC_ARRAY(dest->data, size); memcpy(dest->data, b->buf + off, size); dest->len = size; return size; @@ -132,7 +132,7 @@ int reftable_block_source_from_file(struct reftable_block_source *bs, return REFTABLE_IO_ERROR; } - p = reftable_calloc(sizeof(*p)); + REFTABLE_CALLOC_ARRAY(p, 1); p->size = st.st_size; p->data = xmmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0); close(fd); -- cgit v1.3