Revision 1995b5e03e1cc97116be58cdc0502d4a23547856 authored by Jeff King on 02 May 2018, 21:20:35 UTC, committed by Jeff King on 22 May 2018, 03:55:12 UTC
Now that the internal fsck code is capable of checking
.gitmodules files, we just need to teach its callers to use
the "finish" function to check any queued objects.

With this, we can now catch the malicious case in t7415 with
git-fsck.

Signed-off-by: Jeff King <peff@peff.net>
1 parent ed8b10f
Raw File
oidmap.c
#include "cache.h"
#include "oidmap.h"

static int cmpfn(const void *hashmap_cmp_fn_data,
		 const void *entry, const void *entry_or_key,
		 const void *keydata)
{
	const struct oidmap_entry *entry_ = entry;
	if (keydata)
		return oidcmp(&entry_->oid, (const struct object_id *) keydata);
	return oidcmp(&entry_->oid,
		      &((const struct oidmap_entry *) entry_or_key)->oid);
}

static int hash(const struct object_id *oid)
{
	int hash;
	memcpy(&hash, oid->hash, sizeof(hash));
	return hash;
}

void oidmap_init(struct oidmap *map, size_t initial_size)
{
	hashmap_init(&map->map, cmpfn, NULL, initial_size);
}

void oidmap_free(struct oidmap *map, int free_entries)
{
	if (!map)
		return;
	hashmap_free(&map->map, free_entries);
}

void *oidmap_get(const struct oidmap *map, const struct object_id *key)
{
	if (!map->map.cmpfn)
		return NULL;

	return hashmap_get_from_hash(&map->map, hash(key), key);
}

void *oidmap_remove(struct oidmap *map, const struct object_id *key)
{
	struct hashmap_entry entry;

	if (!map->map.cmpfn)
		oidmap_init(map, 0);

	hashmap_entry_init(&entry, hash(key));
	return hashmap_remove(&map->map, &entry, key);
}

void *oidmap_put(struct oidmap *map, void *entry)
{
	struct oidmap_entry *to_put = entry;

	if (!map->map.cmpfn)
		oidmap_init(map, 0);

	hashmap_entry_init(&to_put->internal_entry, hash(&to_put->oid));
	return hashmap_put(&map->map, to_put);
}
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