Compilation fails: developer option: syslog-server

[Kornelius777]

As I cannot find any documentation about the developer option "syslog-server", I would like to ask how to implement that.
What will I have to put into the platformio.ini?

Thank you all for your nice work!

Kind regards,

[Kornelius777]

Okay. Got a little further:
I put the following into ahoy/src/config/config_override.h:

// to enable the syslog logging (will disable web-serial)
#define ENABLE_SYSLOG
#define SYSLOG_HOST  "10.10.8.200"
#define SYSLOG_APP  "ahoy"
#define SYSLOG_FACILITY FAC_USER
#define SYSLOG_PORT 514

However, when compiling, I get the following error:

Executing task: platformio run --environment esp32-wroom32 

Processing esp32-wroom32 (platform: espressif32@6.9.0; board: lolin_d32; framework: arduino)
---------------------------------------------------------------------
Verbose mode can be enabled via `-v, --verbose` option
Firmware Revision: ahoy_v0.8.156
'../patches/espMqttClientSemaphore.patch' already applied
'../patches/GxEPD2_HAL.patch' already applied
'../patches/RF24_Hal.patch' already applied
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/lolin_d32.html
PLATFORM: Espressif 32 (6.9.0) > WEMOS LOLIN D32
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
PACKAGES: 
 - framework-arduinoespressif32 @ 3.20017.241212+sha.dcc1105b 
 - tool-esptoolpy @ 1.40501.0 (4.5.1) 
 - toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch5
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 44 compatible libraries
Scanning dependencies...
Dependency Graph
|-- RF24 @ 1.4.8+sha.638095e
|-- Time @ 1.6.1
|-- espMqttClient @ 1.7.0+sha.70d3113
|-- ArduinoJson @ 6.21.5
|-- Timezone @ 1.2.6+sha.633b0dc
|-- U8g2 @ 2.36.15
|-- GxEPD2 @ 1.5.3+sha.17cf7f4
|-- ESPAsyncWebServer @ 3.3.12+sha.2bae2a8
|-- DNSServer @ 2.0.0
|-- ESPmDNS @ 2.0.0
|-- WiFi @ 2.0.0
|-- Adafruit GFX Library @ 1.12.4
|-- SPI @ 2.0.0
|-- LittleFS @ 2.0.0
|-- ESP32 Async UDP @ 2.0.0
|-- Ethernet @ 2.0.0
|-- Update @ 2.0.0
|-- FS @ 2.0.0
|-- AsyncTCP @ 3.3.2
|-- WebServer @ 2.0.0
|-- Adafruit BusIO @ 1.17.4
|-- WiFiClientSecure @ 2.0.0
|-- Wire @ 2.0.0
Building in release mode
Compiling .pio/build/esp32-wroom32/src/app.cpp.o
Compiling .pio/build/esp32-wroom32/src/main.cpp.o
Compiling .pio/build/esp32-wroom32/src/network/AhoyNetworkHelper.cpp.o
Compiling .pio/build/esp32-wroom32/src/plugins/Display/Display_ePaper.cpp.o
Compiling .pio/build/esp32-wroom32/src/utils/crc.cpp.o
Compiling .pio/build/esp32-wroom32/src/utils/dbg.cpp.o
Compiling .pio/build/esp32-wroom32/src/utils/helper.cpp.o
Compiling .pio/build/esp32-wroom32/src/utils/spiPatcher.cpp.o
Compiling .pio/build/esp32-wroom32/src/utils/syslog.cpp.o
Compiling .pio/build/esp32-wroom32/src/web/Protection.cpp.o
Building .pio/build/esp32-wroom32/bootloader.bin
Generating partitions .pio/build/esp32-wroom32/partitions.bin
esptool.py v4.5.1
Creating esp32 image...
Merged 1 ELF section
Successfully created esp32 image.
Compiling .pio/build/esp32-wroom32/libe42/SPI/SPI.cpp.o
Compiling .pio/build/esp32-wroom32/libb1f/RF24/RF24.cpp.o
Compiling .pio/build/esp32-wroom32/libb1f/RF24/RF24_hal.cpp.o
Compiling .pio/build/esp32-wroom32/libd3c/Time/DateStrings.cpp.o
Compiling .pio/build/esp32-wroom32/libd3c/Time/Time.cpp.o
Archiving .pio/build/esp32-wroom32/libe42/libSPI.a
utils/syslog.cpp: In member function 'void DbgSyslog::syslogCb(String)':
utils/syslog.cpp:26:20: error: 'class IPAddress' has no member named 'isSet'
     if (!mSyslogIP.isSet()) {
                    ^~~~~
utils/syslog.cpp:32:20: error: 'class IPAddress' has no member named 'isSet'
     if (!mSyslogIP.isSet()) {
                    ^~~~~
utils/syslog.cpp: In member function 'void DbgSyslog::log(const char*, uint8_t, uint8_t, char*)':
utils/syslog.cpp:95:49: error: invalid static_cast from type 'uint8_t [256]' {aka 'unsigned char [256]'} to type 'char*'
     int len = snprintf(static_cast<char*>(buffer), SYSLOG_MAX_PACKET_SIZE, "<%d>%s %s: %s", priority, hostname, SYSLOG_APP, msg);
                                                 ^
Compiling .pio/build/esp32-wroom32/lib95a/AsyncTCP/AsyncTCP.cpp.o
Compiling .pio/build/esp32-wroom32/lib9e0/WiFi/WiFi.cpp.o
*** [.pio/build/esp32-wroom32/src/utils/syslog.cpp.o] Error 1
==================== [FAILED] Took 24.06 seconds ====================

Environment    Status    Duration
-------------  --------  ------------
esp32-wroom32  FAILED    00:00:24.059
=============== 1 failed, 0 succeeded in 00:00:24.059 ===============

 *  The terminal process "platformio 'run', '--environment', 'esp32-wroom32'" terminated with exit code: 1. 
 *  Terminal will be reused by tasks, press any key to close it. 

What the heck?

Would somebody please be so kind as to look into this?

[stefan123t]

@Kornelius777 I have not used the syslog-server myself.
But given that it complains about mSyslogIP.isSet() an ESP8266 Arduino method have you tried changing that to work with your ESP32 target base ?

• Line 26 & 32 'class IPAddress' has no member named 'isSet'
  The isSet() method for checking if an IP address is valid has been deprecated or does not exist in newer versions of the ESP32 Arduino core
  Replace mSyslogIP.isSet() with mSyslogIP == INADDR_NONE.

See for example the implementation here: LennartHennigs/ESPTelnet@4a195c8

• Line 95 invalid static_cast from type 'uint8_t [256]' to type 'char*'
  C++ does not allow casting an array type (uint8_t[]) directly to char*.
  Use a reinterpret_cast: reinterpret_cast<char*>(buffer) or a simpler C-style cast: (char*)buffer.