Allow syslog to be disabled, as in #128

Makefile

@@ -101,7 +101,7 @@ LED_SERIAL_PIN      ?= 14
 # --------------- esp-link modules config options ---------------
 
 # Optional Modules mqtt
-MODULES ?= mqtt rest syslog
+MODULES ?= mqtt rest #syslog
 
 # --------------- esphttpd config options ---------------
 

esp-link/cgiservices.c

@@ -2,9 +2,11 @@
 #include "cgiwifi.h"
 #include "cgi.h"
 #include "config.h"
-#include "syslog.h"
 #include "sntp.h"
 #include "cgimqtt.h"
+#ifdef SYSLOG
+#include "syslog.h"
+#endif
 
 #ifdef CGISERVICES_DBG
 #define DBG(format, ...) do { os_printf(format, ## __VA_ARGS__); } while(0)
@@ -109,21 +111,25 @@ int ICACHE_FLASH_ATTR cgiServicesInfo(HttpdConnData *connData) {
 
   os_sprintf(buff,
     "{ "
+#ifdef SYSLOG
       "\"syslog_host\": \"%s\", "
       "\"syslog_minheap\": %d, "
       "\"syslog_filter\": %d, "
       "\"syslog_showtick\": \"%s\", "
       "\"syslog_showdate\": \"%s\", "
+#endif
       "\"timezone_offset\": %d, "
       "\"sntp_server\": \"%s\", "
       "\"mdns_enable\": \"%s\", "
       "\"mdns_servername\": \"%s\""
     " }",
+#ifdef SYSLOG
     flashConfig.syslog_host,
     flashConfig.syslog_minheap,
     flashConfig.syslog_filter,
     flashConfig.syslog_showtick ? "enabled" : "disabled",
     flashConfig.syslog_showdate ? "enabled" : "disabled",
+#endif
     flashConfig.timezone_offset,
     flashConfig.sntp_server,
     flashConfig.mdns_enable ? "enabled" : "disabled",
@@ -151,9 +157,11 @@ int ICACHE_FLASH_ATTR cgiServicesSet(HttpdConnData *connData) {
   syslog |= getBoolArg(connData, "syslog_showdate", &flashConfig.syslog_showdate);
   if (syslog < 0) return HTTPD_CGI_DONE;
 
+#ifdef SYSLOG
   if (syslog > 0) {
     syslog_init(flashConfig.syslog_host);
   }
+#endif
 
   int8_t sntp = 0;
   sntp |= getInt8Arg(connData, "timezone_offset", &flashConfig.timezone_offset);

esp-link/main.c

@@ -29,13 +29,19 @@
 #include "config.h"
 #include "log.h"
 #include "gpio.h"
-#include "syslog.h"
 #include "cgiservices.h"
 
+#ifdef SYSLOG
+#include "syslog.h"
 #define NOTICE(format, ...) do {                                            \
   LOG_NOTICE(format, ## __VA_ARGS__ );                                      \
   os_printf(format "\n", ## __VA_ARGS__);                                   \
 } while ( 0 )
+#else
+#define NOTICE(format, ...) do {                                            \
+  os_printf(format "\n", ## __VA_ARGS__);                                   \
+} while ( 0 )
+#endif
 
 /*
 This is the main url->function dispatching data struct.

html/services.js

@@ -51,6 +51,7 @@ function displayServices(data) {
   $("#sntp-spinner").setAttribute("hidden", "");
   $("#mdns-spinner").setAttribute("hidden", "");
 
+  if (data.syslog_host !== undefined)
     $("#Syslog-form").removeAttribute("hidden");
   $("#SNTP-form").removeAttribute("hidden");
   $("#mDNS-form").removeAttribute("hidden");

serial/serbridge.c

@@ -10,7 +10,11 @@
 #include "console.h"
 #include "slip.h"
 #include "cmd.h"
+#ifdef SYSLOG
 #include "syslog.h"
+#else
+#define syslog(X1...)
+#endif
 
 #define SKIP_AT_RESET