From: Mergen Imeev via Tarantool-patches <tarantool-patches@dev.tarantool.org> To: Vladislav Shpilevoy <v.shpilevoy@tarantool.org> Cc: tarantool-patches@dev.tarantool.org Subject: Re: [Tarantool-patches] [PATCH v1 2/2] sql: ignore \0 in string passed to Lua-function Date: Fri, 2 Apr 2021 01:50:10 +0300 [thread overview] Message-ID: <20210401225010.GA7318@tarantool.org> (raw) In-Reply-To: <1da9dba4-2c42-d827-3f61-c30910ff7a1b@tarantool.org> Hi! Thank you for the review. My asnwer and new patch below. On Thu, Apr 01, 2021 at 09:51:06PM +0200, Vladislav Shpilevoy wrote: > Hi! Thanks for the fixes! > > > diff --git "a/changelogs/unreleased/fix-crop-strings-by-\\0-in-user-functions.md" "b/changelogs/unreleased/fix-crop-strings-by-\\0-in-user-functions.md" > > new file mode 100644 > > index 000000000..a0aa8a425 > > --- /dev/null > > +++ "b/changelogs/unreleased/fix-crop-strings-by-\\0-in-user-functions.md" > > @@ -0,0 +1,4 @@ > > +## bugfix/sql > > + > > +* Fixed cropping of a string if it contains '\0' when passing a string > > + to user-defined Lua or C functions. > > In the changelog records we use imperative, like in commit titles (because it > seems to be a commonly used way of writing them). Also you need to add the > issue reference to the text in a form `(gh-####)`. Look at the other changelog > files for examples. Thank you. Fixed. New patch: commit 3a9ba7639621c0afd8af1e4de8ef6bb639edeb6e Author: Mergen Imeev <imeevma@gmail.com> Date: Tue Mar 30 09:41:34 2021 +0300 sql: ignore \0 in string passed to Lua-function Prior to this patch string passed to user-defined Lua-function from SQL was cropped in case it contains '\0'. At the same time, it wasn't cropped if it is passed to the function from BOX. After this patch the string won't be cropped when passed from SQL if it contain '\0'. Closes #5938 diff --git a/changelogs/unreleased/fix-string-cropping-in-user-functions.md b/changelogs/unreleased/fix-string-cropping-in-user-functions.md new file mode 100644 index 000000000..f883aa0e0 --- /dev/null +++ b/changelogs/unreleased/fix-string-cropping-in-user-functions.md @@ -0,0 +1,5 @@ +## bugfix/sql + +* The string received by the user-defined C or Lua function could be different + from the string passed to the function. This could happen if the string passed + from SQL contains '\0' (gh-5938). diff --git a/src/box/sql/func.c b/src/box/sql/func.c index c3c14bd22..9b6179f3a 100644 --- a/src/box/sql/func.c +++ b/src/box/sql/func.c @@ -120,7 +120,8 @@ port_vdbemem_dump_lua(struct port *base, struct lua_State *L, bool is_flat) lua_pushnumber(L, sql_value_double(param)); break; case MP_STR: - lua_pushstring(L, (const char *) sql_value_text(param)); + lua_pushlstring(L, (const char *)sql_value_text(param), + (size_t)sql_value_bytes(param)); break; case MP_BIN: case MP_ARRAY: diff --git a/test/sql-tap/gh-5938-wrong-string-length.test.lua b/test/sql-tap/gh-5938-wrong-string-length.test.lua index 943389e34..415fc7729 100755 --- a/test/sql-tap/gh-5938-wrong-string-length.test.lua +++ b/test/sql-tap/gh-5938-wrong-string-length.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(1) +test:plan(2) box.schema.func.create("gh-5938-wrong-string-length.ret_str", { language = "C", @@ -25,4 +25,21 @@ test:do_execsql_test( "This is a complete string","This is a cropped\0 string" }) +box.schema.func.create("ret_str", { + language = "Lua", + body = [[function(str) return str end]], + param_list = { "string" }, + returns = "string", + exports = { "LUA", "SQL" }, + is_deterministic = true +}) + +test:do_execsql_test( + "gh-5938-2", + [[ + SELECT "ret_str"(s) from t; + ]], { + "This is a complete string","This is a cropped\0 string" + }) + test:finish_test()
next prev parent reply other threads:[~2021-04-01 22:50 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-30 11:21 [Tarantool-patches] [PATCH v1 0/2] sql: ignore \0 in string passed to user function Mergen Imeev via Tarantool-patches 2021-03-30 11:21 ` [Tarantool-patches] [PATCH v1 1/2] sql: ignore \0 in string passed to C-function Mergen Imeev via Tarantool-patches 2021-03-31 20:25 ` Vladislav Shpilevoy via Tarantool-patches 2021-04-01 8:32 ` Mergen Imeev via Tarantool-patches 2021-03-30 11:21 ` [Tarantool-patches] [PATCH v1 2/2] sql: ignore \0 in string passed to Lua-function Mergen Imeev via Tarantool-patches 2021-03-31 20:25 ` Vladislav Shpilevoy via Tarantool-patches 2021-04-01 8:41 ` Mergen Imeev via Tarantool-patches 2021-04-01 12:01 ` Mergen Imeev via Tarantool-patches 2021-04-01 19:51 ` Vladislav Shpilevoy via Tarantool-patches 2021-04-01 22:50 ` Mergen Imeev via Tarantool-patches [this message] 2021-04-01 23:09 ` [Tarantool-patches] [PATCH v1 0/2] sql: ignore \0 in string passed to user function Vladislav Shpilevoy via Tarantool-patches 2021-04-02 7:55 ` Kirill Yukhin via Tarantool-patches
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210401225010.GA7318@tarantool.org \ --to=tarantool-patches@dev.tarantool.org \ --cc=imeevma@tarantool.org \ --cc=v.shpilevoy@tarantool.org \ --subject='Re: [Tarantool-patches] [PATCH v1 2/2] sql: ignore \0 in string passed to Lua-function' \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox