Get and log PID of current process to avoid ambiguities when more tha…

…n one pihole-FTL instance is logging into the same file

Signed-off-by: DL6ER <dl6er@dl6er.de>

log.c

@@ -70,10 +70,14 @@ void logg(const char *format, ...)
 
  get_timestr(timestring);
 
+ // Get and log PID of current process to avoid ambiguities when more than one
+ // pihole-FTL instance is logging into the same file
+ long pid = (long)getpid();
+
  // Print to stdout before writing to file
  if(!daemonmode)
  {
- printf("[%s] ", timestring);
+ printf("[%s %ld] ", timestring, pid);
  va_start(args, format);
  vprintf(format, args);
  va_end(args);
@@ -86,7 +90,7 @@ void logg(const char *format, ...)
  // Write to log file
  if(logfile != NULL)
  {
- fprintf(logfile, "[%s] ", timestring);
+ fprintf(logfile, "[%s %ld] ", timestring, pid);
  va_start(args, format);
  vfprintf(logfile, format, args);
  va_end(args);