diff options
Diffstat (limited to 'builtin/fsck.c')
| -rw-r--r-- | builtin/fsck.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/builtin/fsck.c b/builtin/fsck.c index 0929c7f..5ae0366 100644 --- a/builtin/fsck.c +++ b/builtin/fsck.c @@ -74,7 +74,13 @@ static int mark_object(struct object *obj, int type, void *data) { struct object *parent = data; + /* + * The only case data is NULL or type is OBJ_ANY is when + * mark_object_reachable() calls us. All the callers of + * that function has non-NULL obj hence ... + */ if (!obj) { + /* ... these references to parent->fld are safe here */ printf("broken link from %7s %s\n", typename(parent->type), sha1_to_hex(parent->sha1)); printf("broken link from %7s %s\n", @@ -84,6 +90,7 @@ static int mark_object(struct object *obj, int type, void *data) } if (type != OBJ_ANY && obj->type != type) + /* ... and the reference to parent is safe here */ objerror(parent, "wrong object type in link"); if (obj->flags & REACHABLE) @@ -109,7 +116,7 @@ static void mark_object_reachable(struct object *obj) mark_object(obj, OBJ_ANY, NULL); } -static int traverse_one_object(struct object *obj, struct object *parent) +static int traverse_one_object(struct object *obj) { int result; struct tree *tree = NULL; @@ -133,12 +140,11 @@ static int traverse_reachable(void) int result = 0; while (pending.nr) { struct object_array_entry *entry; - struct object *obj, *parent; + struct object *obj; entry = pending.objects + --pending.nr; obj = entry->item; - parent = (struct object *) entry->name; - result |= traverse_one_object(obj, parent); + result |= traverse_one_object(obj); } return !!result; } @@ -385,10 +391,20 @@ static void add_sha1_list(unsigned char *sha1, unsigned long ino) sha1_list.nr = ++nr; } +static inline int is_loose_object_file(struct dirent *de, + char *name, unsigned char *sha1) +{ + if (strlen(de->d_name) != 38) + return 0; + memcpy(name + 2, de->d_name, 39); + return !get_sha1_hex(name, sha1); +} + static void fsck_dir(int i, char *path) { DIR *dir = opendir(path); struct dirent *de; + char name[100]; if (!dir) return; @@ -396,17 +412,13 @@ static void fsck_dir(int i, char *path) if (verbose) fprintf(stderr, "Checking directory %s\n", path); + sprintf(name, "%02x", i); while ((de = readdir(dir)) != NULL) { - char name[100]; unsigned char sha1[20]; if (is_dot_or_dotdot(de->d_name)) continue; - if (strlen(de->d_name) == 38) { - sprintf(name, "%02x", i); - memcpy(name+2, de->d_name, 39); - if (get_sha1_hex(name, sha1) < 0) - break; + if (is_loose_object_file(de, name, sha1)) { add_sha1_list(sha1, DIRENT_SORT_HINT(de)); continue; } @@ -556,8 +568,8 @@ static int fsck_cache_tree(struct cache_tree *it) sha1_to_hex(it->sha1)); return 1; } - mark_object_reachable(obj); obj->used = 1; + mark_object_reachable(obj); if (obj->type != OBJ_TREE) err |= objerror(obj, "non-tree in cache-tree"); } @@ -572,7 +584,7 @@ static char const * const fsck_usage[] = { }; static struct option fsck_opts[] = { - OPT__VERBOSE(&verbose), + OPT__VERBOSE(&verbose, "be verbose"), OPT_BOOLEAN(0, "unreachable", &show_unreachable, "show unreachable objects"), OPT_BOOLEAN(0, "tags", &show_tags, "report tags"), OPT_BOOLEAN(0, "root", &show_root, "report root nodes"), |