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Fixe an issue with aux buffer init overwriting optional parameters in receive() (#334)

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Fixes use on Lua >= 5.4.3
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Paul Kulchenko 2022-03-18 02:23:09 -07:00 committed by GitHub
parent 5b18e475f3
commit d9cc531e3b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 1 deletions
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src/buffer.c
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@ -103,11 +103,14 @@ int buffer_meth_send(lua_State *L, p_buffer buf) {
* object:receive() interface * object:receive() interface
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int buffer_meth_receive(lua_State *L, p_buffer buf) { int buffer_meth_receive(lua_State *L, p_buffer buf) {
int err = IO_DONE, top = lua_gettop(L); int err = IO_DONE, top;
luaL_Buffer b; luaL_Buffer b;
size_t size; size_t size;
const char *part = luaL_optlstring(L, 3, "", &size); const char *part = luaL_optlstring(L, 3, "", &size);
timeout_markstart(buf->tm); timeout_markstart(buf->tm);
/* make sure we don't confuse buffer stuff with arguments */
lua_settop(L, 3);
top = lua_gettop(L);
/* initialize buffer with optional extra prefix /* initialize buffer with optional extra prefix
* (useful for concatenating previous partial results) */ * (useful for concatenating previous partial results) */
luaL_buffinit(L, &b); luaL_buffinit(L, &b);