From 96ffc06f72f693d80f05059a1f0e5ca9007d5f1b Mon Sep 17 00:00:00 2001 From: Jeff King Date: Mon, 22 Feb 2016 17:44:32 -0500 Subject: convert trivial cases to FLEX_ARRAY macros Using FLEX_ARRAY macros reduces the amount of manual computation size we have to do. It also ensures we don't overflow size_t, and it makes sure we write the same number of bytes that we allocated. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- refs/files-backend.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) (limited to 'refs/files-backend.c') diff --git a/refs/files-backend.c b/refs/files-backend.c index 3a27f27585..de9af1615c 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -199,17 +199,14 @@ static struct ref_entry *create_ref_entry(const char *refname, const unsigned char *sha1, int flag, int check_name) { - int len; struct ref_entry *ref; if (check_name && check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) die("Reference has invalid format: '%s'", refname); - len = strlen(refname) + 1; - ref = xmalloc(sizeof(struct ref_entry) + len); + FLEX_ALLOC_STR(ref, name, refname); hashcpy(ref->u.value.oid.hash, sha1); oidclr(&ref->u.value.peeled); - memcpy(ref->name, refname, len); ref->flag = flag; return ref; } @@ -268,9 +265,7 @@ static struct ref_entry *create_dir_entry(struct ref_cache *ref_cache, int incomplete) { struct ref_entry *direntry; - direntry = xcalloc(1, sizeof(struct ref_entry) + len + 1); - memcpy(direntry->name, dirname, len); - direntry->name[len] = '\0'; + FLEX_ALLOC_MEM(direntry, name, dirname, len); direntry->u.subdir.ref_cache = ref_cache; direntry->flag = REF_DIR | (incomplete ? REF_INCOMPLETE : 0); return direntry; @@ -939,13 +934,10 @@ static void clear_loose_ref_cache(struct ref_cache *refs) */ static struct ref_cache *create_ref_cache(const char *submodule) { - int len; struct ref_cache *refs; if (!submodule) submodule = ""; - len = strlen(submodule) + 1; - refs = xcalloc(1, sizeof(struct ref_cache) + len); - memcpy(refs->name, submodule, len); + FLEX_ALLOC_STR(refs, name, submodule); refs->next = submodule_ref_caches; submodule_ref_caches = refs; return refs; @@ -2191,10 +2183,9 @@ static int pack_if_possible_fn(struct ref_entry *entry, void *cb_data) /* Schedule the loose reference for pruning if requested. */ if ((cb->flags & PACK_REFS_PRUNE)) { - int namelen = strlen(entry->name) + 1; - struct ref_to_prune *n = xcalloc(1, sizeof(*n) + namelen); + struct ref_to_prune *n; + FLEX_ALLOC_STR(n, name, entry->name); hashcpy(n->sha1, entry->u.value.oid.hash); - memcpy(n->name, entry->name, namelen); /* includes NUL */ n->next = cb->ref_to_prune; cb->ref_to_prune = n; } -- cgit v1.2.3