Merge branch 'jk/tighten-alloc'

Update various codepaths to avoid manually-counted malloc().

* jk/tighten-alloc: (22 commits)
  ewah: convert to REALLOC_ARRAY, etc
  convert ewah/bitmap code to use xmalloc
  diff_populate_gitlink: use a strbuf
  transport_anonymize_url: use xstrfmt
  git-compat-util: drop mempcpy compat code
  sequencer: simplify memory allocation of get_message
  test-path-utils: fix normalize_path_copy output buffer size
  fetch-pack: simplify add_sought_entry
  fast-import: simplify allocation in start_packfile
  write_untracked_extension: use FLEX_ALLOC helper
  prepare_{git,shell}_cmd: use argv_array
  use st_add and st_mult for allocation size computation
  convert trivial cases to FLEX_ARRAY macros
  use xmallocz to avoid size arithmetic
  convert trivial cases to ALLOC_ARRAY
  convert manual allocations to argv_array
  argv-array: add detach function
  add helpers for allocating flex-array structs
  harden REALLOC_ARRAY and xcalloc against size_t overflow
  tree-diff: catch integer overflow in combine_diff_path allocation
  ...

1 files changed, 2 insertions, 3 deletions

diff --git a/setup.c b/setup.c
index 59ec6587aa..de1a2a7ea5 100644
--- a/setup.c
+++ b/setup.c
@@ -88,7 +88,7 @@ char *prefix_path_gently(const char *prefix, int len,
 	const char *orig = path;
 	char *sanitized;
 	if (is_absolute_path(orig)) {
-		sanitized = xmalloc(strlen(path) + 1);
+		sanitized = xmallocz(strlen(path));
 		if (remaining_prefix)
 			*remaining_prefix = 0;
 		if (normalize_path_copy_len(sanitized, path, remaining_prefix)) {
@@ -486,14 +486,13 @@ const char *read_gitfile_gently(const char *path, int *return_error_code)
 		error_code = READ_GITFILE_ERR_OPEN_FAILED;
 		goto cleanup_return;
 	}
-	buf = xmalloc(st.st_size + 1);
+	buf = xmallocz(st.st_size);
 	len = read_in_full(fd, buf, st.st_size);
 	close(fd);
 	if (len != st.st_size) {
 		error_code = READ_GITFILE_ERR_READ_FAILED;
 		goto cleanup_return;
 	}
-	buf[len] = '\0';
 	if (!starts_with(buf, "gitdir: ")) {
 		error_code = READ_GITFILE_ERR_INVALID_FORMAT;
 		goto cleanup_return;