DOS 2.10 changes the first space character to a NUL byte.

Author: FozzTexx

sys/init.c

@@ -129,7 +129,6 @@ uint8_t get_set_time(uint8_t set_flag)
   uint16_t year_wcen;
 
 
-  consolef("Getting FujiNet time\n");
   cmd.device = DEVICEID_APETIME;
   cmd.comnd = CMD_APETIME_GETTZTIME;
 
@@ -200,7 +199,7 @@ void check_uart()
 }
 
 /* Parse CONFIG.SYS command line, returns number of bytes remaining in config_env */
-#define IS_CONFIG_EOL(c) (!c || c == '\r' || c == '\n')
+#define IS_CONFIG_EOL(c) (c == '\r' || c == '\n')
 uint16_t parse_config(const uint8_t far *config_sys)
 {
   int idx, count;
@@ -210,25 +209,29 @@ uint16_t parse_config(const uint8_t far *config_sys)
   uint8_t eq_flag;
 
 
+#ifdef CONFIG_SYS_DEBUG
   consolef("CONFIG.SYS: ");
   for (cfg = config_sys; cfg && !IS_CONFIG_EOL(*cfg); cfg++)
     printChar(*cfg);
   consolef("\n");
+  dumpHex(config_sys, 64);
+#endif /* CONFIG_SYS_DEBUG */
   *cfg_env = NULL;
   buf = (char *) &cfg_env[1];
   buf_max = (char *) cfg_env + ((uint16_t) &driver_end - (uint16_t) &config_env);
 
   // Driver filename is everything before the first space
-  for (cfg = config_sys; cfg && *cfg != ' ' && !IS_CONFIG_EOL(*cfg); cfg++)
+  for (cfg = config_sys; cfg && *cfg > ' ' && !IS_CONFIG_EOL(*cfg); cfg++)
     ;
 
-  if (*cfg != ' ')
+  if (*cfg && *cfg != ' ')
     goto done;
 
-  // Skip any trailing spaces
+  cfg++;
+  // Skip any extra spaces
   while (*cfg == ' ')
     cfg++;
-  if (!*cfg || *cfg == '\r' || *cfg == '\n')
+  if (IS_CONFIG_EOL(*cfg))
     goto done;
 
   bcfg = cfg;