[Tarantool-patches] [PATCH v1 1/1] box: check STRING length when it is cast to UUID

[Timur Safin]

LGTM,
(with unimportant correction)

: From: imeevma at tarantool.org <imeevma at tarantool.org>
: Sent: Friday, June 4, 2021 1:49 PM
: To: tsafin at tarantool.org
: Cc: tarantool-patches at dev.tarantool.org
: Subject: [PATCH v1 1/1] box: check STRING length when it is cast to UUID
: 
: After this patch, the tt_uuid_from_strl() function will check the length
: of the given string before converting it to a UUID.
: 
: Follow up #5886
: ---
: https://github.com/tarantool/tarantool/issues/5886
: https://github.com/tarantool/tarantool/tree/imeevma/gh-5886-follow-up
: 
:  src/lib/uuid/tt_uuid.c     |  2 ++
:  test/sql-tap/uuid.test.lua | 19 ++++++++++++++++++-
:  2 files changed, 20 insertions(+), 1 deletion(-)
: 
: diff --git a/src/lib/uuid/tt_uuid.c b/src/lib/uuid/tt_uuid.c
: index 8bc9bc7af..d92376650 100644
: --- a/src/lib/uuid/tt_uuid.c
: +++ b/src/lib/uuid/tt_uuid.c
: @@ -98,6 +98,8 @@ tt_uuid_str(const struct tt_uuid *uu)
:  int
:  tt_uuid_from_strl(const char *in, size_t len, struct tt_uuid *uu)
:  {
: +	if (len != UUID_STR_LEN)
: +		return 1;
:  	char buf[UUID_STR_LEN + 1];
:  	snprintf(buf, sizeof(buf), "%.*s", (int) len, in);
:  	return tt_uuid_from_string(buf, uu);
: diff --git a/test/sql-tap/uuid.test.lua b/test/sql-tap/uuid.test.lua
: index 83fcc3d0e..77ba06c2d 100755
: --- a/test/sql-tap/uuid.test.lua
: +++ b/test/sql-tap/uuid.test.lua
: @@ -3,7 +3,7 @@ local build_path = os.getenv("BUILDDIR")
:  package.cpath = build_path..'/test/sql-tap/?.so;'..build_path..'/test/sql-
: tap/?.dylib;'..package.cpath
: 
:  local test = require("sqltester")
: -test:plan(145)
: +test:plan(147)
: 
:  local uuid = require("uuid")
:  local uuid1 = uuid.fromstr("11111111-1111-1111-1111-111111111111")
: @@ -1316,6 +1316,23 @@ test:do_execsql_test(
:          true
:      })
: 
: +-- Make sure STRING of wrong length cannot be cast to UUID.

'cannot be casted'

: +test:do_catchsql_test(
: +    "uuid-17.1",
: +    [[
: +        SELECT CAST('11111111-1111-1111-1111-111111111111111222222222' AS
: UUID);
: +    ]], {
: +        1, "Type mismatch: can not convert 11111111-1111-1111-1111-
: 111111111111111222222222 to uuid"
: +    })
: +
: +test:do_catchsql_test(
: +    "uuid-17.2",
: +    [[
: +        SELECT CAST('11111111-1111-1111-1111-11111' AS UUID);
: +    ]], {
: +        1, "Type mismatch: can not convert 11111111-1111-1111-1111-11111 to
: uuid"
: +    })
: +
:  test:execsql([[
:      DROP TRIGGER t;
:      DROP VIEW v;
: --
: 2.25.1