diff options
Diffstat (limited to 'source3')
-rw-r--r-- | source3/locking/locking.c | 45 |
1 files changed, 22 insertions, 23 deletions
diff --git a/source3/locking/locking.c b/source3/locking/locking.c index 9a707f80a4..d157c30c82 100644 --- a/source3/locking/locking.c +++ b/source3/locking/locking.c @@ -457,13 +457,12 @@ static BOOL parse_share_modes(TDB_DATA dbuf, struct share_mode_lock *lck) /* Get any delete token. */ if (data->u.s.delete_token_size) { - /* Each uid/gid is stored as a 4 byte value. */ - uint32 val; - uint32 *p = (uint32 *)(dbuf.dptr + sizeof(*data) + + char *p = dbuf.dptr + sizeof(*data) + (lck->num_share_modes * - sizeof(struct share_mode_entry))); + sizeof(struct share_mode_entry)); - if ((data->u.s.delete_token_size < 8) || (data->u.s.delete_token_size % 4) != 0) { + if ((data->u.s.delete_token_size < sizeof(uid_t) + sizeof(gid_t)) || + ((data->u.s.delete_token_size - sizeof(uid_t)) % sizeof(gid_t)) != 0) { DEBUG(0, ("parse_share_modes: invalid token size %d\n", data->u.s.delete_token_size)); smb_panic("parse_share_modes: invalid token size\n"); @@ -475,14 +474,16 @@ static BOOL parse_share_modes(TDB_DATA dbuf, struct share_mode_lock *lck) } /* Copy out the uid and gid. */ - memcpy(&val, p++, 4); - lck->delete_token->uid = (uid_t)val; - memcpy(&val, p++, 4); - lck->delete_token->gid = (gid_t)val; + memcpy(&lck->delete_token->uid, p, sizeof(uid_t)); + p += sizeof(uid_t); + memcpy(&lck->delete_token->gid, p, sizeof(gid_t)); + p += sizeof(gid_t); /* Any supplementary groups ? */ - lck->delete_token->ngroups = (data->u.s.delete_token_size > 8) ? - ((data->u.s.delete_token_size - 8)/4) : 0; + lck->delete_token->ngroups = (data->u.s.delete_token_size > (sizeof(uid_t) + sizeof(gid_t))) ? + ((data->u.s.delete_token_size - + (sizeof(uid_t) + sizeof(gid_t)))/sizeof(gid_t)) : 0; + if (lck->delete_token->ngroups) { /* Make this a talloc child of lck->delete_token. */ lck->delete_token->groups = TALLOC_ARRAY(lck->delete_token, gid_t, @@ -492,8 +493,8 @@ static BOOL parse_share_modes(TDB_DATA dbuf, struct share_mode_lock *lck) } for (i = 0; i < lck->delete_token->ngroups; i++) { - memcpy(&val, p++, 4); - lck->delete_token->groups[i] = (gid_t)val; + memcpy(&lck->delete_token->groups[i], p, sizeof(gid_t)); + p += sizeof(gid_t); } } @@ -557,7 +558,7 @@ static TDB_DATA unparse_share_modes(struct share_mode_lock *lck) sp_len = strlen(lck->servicepath); delete_token_size = (lck->delete_token ? - (8 + (lck->delete_token->ngroups*4)) : 0); + (sizeof(uid_t) + sizeof(gid_t) + (lck->delete_token->ngroups*sizeof(gid_t))) : 0); result.dsize = sizeof(*data) + lck->num_share_modes * sizeof(struct share_mode_entry) + @@ -588,20 +589,18 @@ static TDB_DATA unparse_share_modes(struct share_mode_lock *lck) /* Store any delete on close token. */ if (lck->delete_token) { - uint32 val; - uint32 *p = (uint32 *)(result.dptr + offset); + char *p = result.dptr + offset; - val = (uint32)lck->delete_token->uid; - memcpy(p++, &val, 4); + memcpy(p, &lck->delete_token->uid, sizeof(uid_t)); + p += sizeof(uid_t); - val = (uint32)lck->delete_token->uid; - memcpy(p++, &val, 4); + memcpy(p, &lck->delete_token->gid, sizeof(gid_t)); for (i = 0; i < lck->delete_token->ngroups; i++) { - val = (uint32)lck->delete_token->groups[i]; - memcpy(p++, &val, 4); + memcpy(p, &lck->delete_token->groups[i], sizeof(gid_t)); + p += sizeof(gid_t); } - offset = ((char *)p - result.dptr); + offset = p - result.dptr; } safe_strcpy(result.dptr + offset, lck->servicepath, |