Function cupsdCheckLogFile

scheduler/log.c:109–300

 */

int					/* O  - 1 if log file open */
cupsdCheckLogFile(cups_file_t **lf,	/* IO - Log file */
	          const char  *logname)	/* I  - Log filename */
{
  char		backname[1024],		/* Backup log filename */
		filename[1024],		/* Formatted log filename */
		*ptr;			/* Pointer into filename */
  const char	*logptr;		/* Pointer into log filename */


 /*
  * See if we have a log file to check...
  */

  if (!lf || !logname || !logname[0])
    return (1);

 /*
  * Handle logging to stderr...
  */

  if (!strcmp(logname, "stderr"))
  {
    *lf = LogStderr;
    return (1);
  }

 /*
  * Format the filename as needed...
  */

  if (!*lf ||
      (strncmp(logname, "/dev/", 5) && cupsFileTell(*lf) > MaxLogSize &&
       MaxLogSize > 0))
  {
   /*
    * Handle format strings...
    */

    filename[sizeof(filename) - 1] = '\0';

    if (logname[0] != '/')
    {
      strlcpy(filename, ServerRoot, sizeof(filename));
      strlcat(filename, "/", sizeof(filename));
    }
    else
    {
      filename[0] = '\0';
    }

    for (logptr = logname, ptr = filename + strlen(filename); *logptr && ptr < (filename + sizeof(filename) - 1); logptr ++)
    {
      if (*logptr == '%')
      {
       /*
        * Format spec...
	*/