GitHub user zwoop opened an issue:
https://github.com/apache/trafficserver/issues/1292
CID 1367515, CID 1367514, CID 1367513: ts_lua plugin
```
*** CID 1367515: Error handling issues (CHECKED_RETURN)
/plugins/experimental/ts_lua/ts_lua_server_response.c: 354 in
ts_lua_server_response_set_version()
348 GET_HTTP_CONTEXT(http_ctx, L);
349
350 TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx);
351
352 version = luaL_checklstring(L, 1, &len);
353
CID 1367515: Error handling issues (CHECKED_RETURN)
Calling "sscanf" without checking return value (as is done elsewhere 61
out of 67 times).
354 sscanf(version, "%2u.%2u", &major, &minor);
355
356 TSHttpHdrVersionSet(http_ctx->server_response_bufp,
http_ctx->server_response_hdrp, TS_HTTP_VERSION(major, minor));
357
358 return 0;
```
and
```
*** CID 1367514: Error handling issues (CHECKED_RETURN)
/plugins/experimental/ts_lua/ts_lua_client_request.c: 903 in
ts_lua_client_request_set_version()
897 ts_lua_http_ctx *http_ctx;
898
899 GET_HTTP_CONTEXT(http_ctx, L);
900
901 version = luaL_checklstring(L, 1, &len);
902
CID 1367514: Error handling issues (CHECKED_RETURN)
Calling "sscanf" without checking return value (as is done elsewhere 61
out of 67 times).
903 sscanf(version, "%2u.%2u", &major, &minor);
904
905 TSHttpHdrVersionSet(http_ctx->client_request_bufp,
http_ctx->client_request_hdrp, TS_HTTP_VERSION(major, minor));
906
907 return 0;
908 }
```
and
```
*** CID 1367513: Error handling issues (CHECKED_RETURN)
/plugins/experimental/ts_lua/ts_lua_client_response.c: 370 in
ts_lua_client_response_set_version()
364 GET_HTTP_CONTEXT(http_ctx, L);
365
366 TS_LUA_CHECK_CLIENT_RESPONSE_HDR(http_ctx);
367
368 version = luaL_checklstring(L, 1, &len);
369
CID 1367513: Error handling issues (CHECKED_RETURN)
Calling "sscanf" without checking return value (as is done elsewhere 61
out of 67 times).
370 sscanf(version, "%2u.%2u", &major, &minor);
371
372 TSHttpHdrVersionSet(http_ctx->client_response_bufp,
http_ctx->client_response_hdrp, TS_HTTP_VERSION(major, minor));
373
374 return 0;
375 }
```
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