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Make sure error and status replies emitted by Lua scripts can never have more than a newline, otherwise it is a protocol violation and clients will desync.

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This commit is contained in:
antirez
2011-05-24 19:43:11 +02:00
parent 449286a588
commit 3bb818df40
4 changed files with 39 additions and 4 deletions
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12
src/scripting.c
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@ -332,8 +332,10 @@ void luaReplyToRedisReply(redisClient *c, lua_State *lua) {
lua_gettable(lua,-2);
t = lua_type(lua,-1);
if (t == LUA_TSTRING) {
addReplySds(c,sdscatprintf(sdsempty(),
"-%s\r\n",(char*)lua_tostring(lua,-1)));
sds err = sdsnew(lua_tostring(lua,-1));
sdsmapchars(err,"\r\n"," ",2);
addReplySds(c,sdscatprintf(sdsempty(),"-%s\r\n",err));
sdsfree(err);
lua_pop(lua,2);
return;
}
@ -343,8 +345,10 @@ void luaReplyToRedisReply(redisClient *c, lua_State *lua) {
lua_gettable(lua,-2);
t = lua_type(lua,-1);
if (t == LUA_TSTRING) {
addReplySds(c,sdscatprintf(sdsempty(),
"+%s\r\n",(char*)lua_tostring(lua,-1)));
sds ok = sdsnew(lua_tostring(lua,-1));
sdsmapchars(ok,"\r\n"," ",2);
addReplySds(c,sdscatprintf(sdsempty(),"+%s\r\n",ok));
sdsfree(ok);
lua_pop(lua,1);
} else {
void *replylen = addDeferredMultiBulkLength(c);