From dc0bcfa188cb24c5a34f592ece946682d5fb8afe Mon Sep 17 00:00:00 2001 From: Michael Adam Date: Wed, 15 Jul 2009 12:45:43 +0200 Subject: s3:registry: turn regdb_fetch_keys_internal() from int to WERROR return type This way, more error information is propagated to the callers. Michael --- source3/registry/reg_backend_db.c | 85 ++++++++++++++++++++++++--------------- 1 file changed, 53 insertions(+), 32 deletions(-) (limited to 'source3/registry') diff --git a/source3/registry/reg_backend_db.c b/source3/registry/reg_backend_db.c index 11e6f66760..7825edd5c2 100644 --- a/source3/registry/reg_backend_db.c +++ b/source3/registry/reg_backend_db.c @@ -29,8 +29,8 @@ static int regdb_refcount; static bool regdb_key_exists(struct db_context *db, const char *key); static bool regdb_key_is_base_key(const char *key); -static int regdb_fetch_keys_internal(struct db_context *db, const char *key, - struct regsubkey_ctr *ctr); +static WERROR regdb_fetch_keys_internal(struct db_context *db, const char *key, + struct regsubkey_ctr *ctr); static bool regdb_store_keys_internal(struct db_context *db, const char *key, struct regsubkey_ctr *ctr); static int regdb_fetch_values_internal(struct db_context *db, const char* key, @@ -182,7 +182,13 @@ static WERROR init_registry_key_internal(struct db_context *db, goto fail; } - regdb_fetch_keys_internal(db, base, subkeys); + werr = regdb_fetch_keys_internal(db, base, subkeys); + if (!W_ERROR_IS_OK(werr) && + !W_ERROR_EQUAL(werr, WERR_NOT_FOUND)) + { + goto fail; + } + if (*subkeyname) { werr = regsubkey_ctr_addkey(subkeys, subkeyname); if (!W_ERROR_IS_OK(werr)) { @@ -750,7 +756,12 @@ static NTSTATUS regdb_store_keys_action(struct db_context *db, werr = regsubkey_ctr_init(mem_ctx, &old_subkeys); W_ERROR_NOT_OK_GOTO_DONE(werr); - regdb_fetch_keys_internal(db, store_ctx->key, old_subkeys); + werr = regdb_fetch_keys_internal(db, store_ctx->key, old_subkeys); + if (!W_ERROR_IS_OK(werr) && + !W_ERROR_EQUAL(werr, WERR_NOT_FOUND)) + { + goto done; + } /* * Make the store operation as safe as possible without transactions: @@ -839,7 +850,8 @@ static NTSTATUS regdb_store_keys_action(struct db_context *db, werr = regsubkey_ctr_init(mem_ctx, &subkeys); W_ERROR_NOT_OK_GOTO_DONE(werr); - if (regdb_fetch_keys_internal(db, path, subkeys) == -1) { + werr = regdb_fetch_keys_internal(db, path, subkeys); + if (!W_ERROR_IS_OK(werr)) { /* create a record with 0 subkeys */ werr = regdb_store_keys_internal2(db, path, subkeys); if (!W_ERROR_IS_OK(werr)) { @@ -886,7 +898,12 @@ static bool regdb_store_keys_internal(struct db_context *db, const char *key, goto done; } - regdb_fetch_keys_internal(db, key, old_subkeys); + werr = regdb_fetch_keys_internal(db, key, old_subkeys); + if (!W_ERROR_IS_OK(werr) && + !W_ERROR_EQUAL(werr, WERR_NOT_FOUND)) + { + goto done; + } num_subkeys = regsubkey_ctr_numkeys(ctr); old_num_subkeys = regsubkey_ctr_numkeys(old_subkeys); @@ -956,10 +973,8 @@ static NTSTATUS regdb_create_subkey_action(struct db_context *db, werr = regsubkey_ctr_init(mem_ctx, &subkeys); W_ERROR_NOT_OK_GOTO_DONE(werr); - if (regdb_fetch_keys_internal(db, create_ctx->key, subkeys) < 0) { - werr = WERR_REG_IO_FAILURE; - goto done; - } + werr = regdb_fetch_keys_internal(db, create_ctx->key, subkeys); + W_ERROR_NOT_OK_GOTO_DONE(werr); werr = regsubkey_ctr_addkey(subkeys, create_ctx->subkey); W_ERROR_NOT_OK_GOTO_DONE(werr); @@ -991,10 +1006,8 @@ static WERROR regdb_create_subkey(const char *key, const char *subkey) werr = regsubkey_ctr_init(mem_ctx, &subkeys); W_ERROR_NOT_OK_GOTO_DONE(werr); - if (regdb_fetch_keys_internal(regdb, key, subkeys) < 0) { - werr = WERR_REG_IO_FAILURE; - goto done; - } + werr = regdb_fetch_keys_internal(regdb, key, subkeys); + W_ERROR_NOT_OK_GOTO_DONE(werr); if (regsubkey_ctr_key_exists(subkeys, subkey)) { werr = WERR_OK; @@ -1041,10 +1054,8 @@ static NTSTATUS regdb_delete_subkey_action(struct db_context *db, werr = regsubkey_ctr_init(mem_ctx, &subkeys); W_ERROR_NOT_OK_GOTO_DONE(werr); - if (regdb_fetch_keys_internal(db, delete_ctx->key, subkeys) < 0) { - werr = WERR_REG_IO_FAILURE; - goto done; - } + werr = regdb_fetch_keys_internal(db, delete_ctx->key, subkeys); + W_ERROR_NOT_OK_GOTO_DONE(werr); werr = regsubkey_ctr_delkey(subkeys, delete_ctx->subkey); W_ERROR_NOT_OK_GOTO_DONE(werr); @@ -1187,7 +1198,7 @@ static NTSTATUS create_sorted_subkeys_action(struct db_context *db, NTSTATUS status; char *buf; char *p; - int i, res; + int i; size_t len; int num_subkeys; struct create_sorted_subkeys_context *sorted_ctx; @@ -1212,9 +1223,12 @@ static NTSTATUS create_sorted_subkeys_action(struct db_context *db, goto done; } - res = regdb_fetch_keys_internal(db, sorted_ctx->key, ctr); - if (res == -1) { + status = werror_to_ntstatus(regdb_fetch_keys_internal(db, + sorted_ctx->key, + ctr)); + if (!NT_STATUS_IS_OK(status)) { /* don't treat this as an error */ + status = NT_STATUS_OK; goto done; } @@ -1423,36 +1437,36 @@ done: released by the caller. ***********************************************************************/ -static int regdb_fetch_keys_internal(struct db_context *db, const char *key, - struct regsubkey_ctr *ctr) +static WERROR regdb_fetch_keys_internal(struct db_context *db, const char *key, + struct regsubkey_ctr *ctr) { WERROR werr; - uint32 num_items; + uint32_t num_items; uint8 *buf; uint32 buflen, len; int i; fstring subkeyname; - int ret = -1; TALLOC_CTX *frame = talloc_stackframe(); TDB_DATA value; DEBUG(11,("regdb_fetch_keys: Enter key => [%s]\n", key ? key : "NULL")); + frame = talloc_stackframe(); + if (!regdb_key_exists(db, key)) { + DEBUG(10, ("key [%s] not found\n", key)); + werr = WERR_NOT_FOUND; goto done; } werr = regsubkey_ctr_set_seqnum(ctr, db->get_seqnum(db)); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } + W_ERROR_NOT_OK_GOTO_DONE(werr); value = regdb_fetch_key_internal(db, frame, key); if (value.dptr == NULL) { DEBUG(10, ("regdb_fetch_keys: no subkeys found for key [%s]\n", key)); - ret = 0; goto done; } @@ -1466,21 +1480,28 @@ static int regdb_fetch_keys_internal(struct db_context *db, const char *key, if (!W_ERROR_IS_OK(werr)) { DEBUG(5, ("regdb_fetch_keys: regsubkey_ctr_addkey " "failed: %s\n", win_errstr(werr))); + num_items = 0; goto done; } } DEBUG(11,("regdb_fetch_keys: Exit [%d] items\n", num_items)); - ret = num_items; done: TALLOC_FREE(frame); - return ret; + return werr; } int regdb_fetch_keys(const char *key, struct regsubkey_ctr *ctr) { - return regdb_fetch_keys_internal(regdb, key, ctr); + WERROR werr; + + werr = regdb_fetch_keys_internal(regdb, key, ctr); + if (!W_ERROR_IS_OK(werr)) { + return -1; + } + + return regsubkey_ctr_numkeys(ctr); } /**************************************************************************** -- cgit