svn_rev_307

some main.c cleanup:
- move the parser used when hush is disabled to parser.c
- move readline related functions to readline.c (with cmdline editing)
  and readline_simple.c (no cmdline editing)

6 files changed, 851 insertions, 855 deletions

diff --git a/common/Kconfig b/common/Kconfig
index 366a8b4b11..6dbe1d56bf 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -21,6 +21,11 @@ config CMDLINE_EDITING
 	bool
 	prompt "Enable command line editing"
 
+config SIMPLE_READLINE
+	bool
+	default y
+	depends on !CMDLINE_EDITING
+
 config LONGHELP
 	bool
 	prompt "Enable long help texts"
@@ -39,6 +44,11 @@ config HUSH_PARSER
 	bool
 	prompt "Use hush parser"
 
+config SIMPLE_PARSER
+	bool
+	default y
+	depends on !HUSH_PARSER
+
 config PROMPT_HUSH_PS2
 	string
 	depends on HUSH_PARSER
diff --git a/common/Makefile b/common/Makefile
index 8733a747a3..288b747a34 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -11,7 +11,11 @@ obj-$(CONFIG_CMD_LOADS)		+= s_record.o
 obj-$(CONFIG_CMD_SPLASH)	+= cmd_splash.o
 obj-$(CONFIG_CMD_MTEST)		+= cmd_memtest.o
 obj-$(CONFIG_CMD_SLEEP)		+= cmd_misc.o
-obj-$(CMD_EDIT)			+= cmd_edit.o
+obj-$(CONFIG_CMD_EDIT)		+= cmd_edit.o
+obj-$(CONFIG_HUSH_PARSER)	+= hush.o
+obj-$(CONFIG_SIMPLE_PARSER)	+= parser.o
+obj-$(CONFIG_CMDLINE_EDITING)	+= readline.o
+obj-$(CONFIG_SIMPLE_READLINE)	+= readline_simple.o
 
 obj-y += exports.o
 obj-y += main.o
@@ -20,7 +24,6 @@ obj-y += dlmalloc.o
 obj-y += clock.o
 obj-y += flash.o
 obj-y += command.o
-obj-y += hush.o
 obj-y += console.o
 obj-y += mtdpart.o
 obj-y += env.o
diff --git a/common/main.c b/common/main.c
index 779dd885c9..82851dda00 100644
--- a/common/main.c
+++ b/common/main.c
@@ -49,7 +49,6 @@ extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 
 #define MAX_DELAY_STOP_STR 32
 
-static int parse_line (char *, char *[]);
 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
 static int abortboot(int);
 #endif
@@ -58,12 +57,6 @@ static int abortboot(int);
 
 char        console_buffer[CONFIG_CBSIZE];		/* console I/O buffer	*/
 
-#ifndef CONFIG_CMDLINE_EDITING
-static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen);
-static char erase_seq[] = "\b \b";		/* erase sequence	*/
-static char   tab_seq[] = "        ";		/* used to expand TABs	*/
-#endif /* CONFIG_CMDLINE_EDITING */
-
 #ifdef CONFIG_BOOT_RETRY_TIME
 static uint64_t endtime = 0;  /* must be set, default is instant timeout */
 static int      retry_time = -1; /* -1 so can call readline before main_loop */
@@ -479,854 +472,8 @@ void reset_cmd_timeout(void)
 }
 #endif
 
-#ifdef CONFIG_CMDLINE_EDITING
-
-/*
- * cmdline-editing related codes from vivi.
- * Author: Janghoon Lyu <nandy@mizi.com>
- */
-
-#define putnstr(str,n)	do {			\
-		printf ("%.*s", n, str);	\
-	} while (0)
-
-#define CTL_CH(c)		((c) - 'a' + 1)
-
-#define MAX_CMDBUF_SIZE		256
-
-#define CTL_BACKSPACE		('\b')
-#define DEL			((char)255)
-#define DEL7			((char)127)
-#define CREAD_HIST_CHAR		('!')
-
-#define getcmd_putch(ch)	putc(ch)
-#define getcmd_getch()		getc()
-#define getcmd_cbeep()		getcmd_putch('\a')
-
-#define HIST_MAX		20
-#define HIST_SIZE		MAX_CMDBUF_SIZE
-
-static int hist_max = 0;
-static int hist_add_idx = 0;
-static int hist_cur = -1;
-unsigned hist_num = 0;
-
-char* hist_list[HIST_MAX];
-char hist_lines[HIST_MAX][HIST_SIZE];
-
-#define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1)
-
-static void hist_init(void)
-{
-	int i;
-
-	hist_max = 0;
-	hist_add_idx = 0;
-	hist_cur = -1;
-	hist_num = 0;
-
-	for (i = 0; i < HIST_MAX; i++) {
-		hist_list[i] = hist_lines[i];
-		hist_list[i][0] = '\0';
-	}
-}
-
-static void cread_add_to_hist(char *line)
-{
-	strcpy(hist_list[hist_add_idx], line);
-
-	if (++hist_add_idx >= HIST_MAX)
-		hist_add_idx = 0;
-
-	if (hist_add_idx > hist_max)
-		hist_max = hist_add_idx;
-
-	hist_num++;
-}
-
-static char* hist_prev(void)
-{
-	char *ret;
-	int old_cur;
-
-	if (hist_cur < 0)
-		return NULL;
-
-	old_cur = hist_cur;
-	if (--hist_cur < 0)
-		hist_cur = hist_max;
-
-	if (hist_cur == hist_add_idx) {
-		hist_cur = old_cur;
-		ret = NULL;
-	} else
-		ret = hist_list[hist_cur];
-
-	return (ret);
-}
-
-static char* hist_next(void)
-{
-	char *ret;
-
-	if (hist_cur < 0)
-		return NULL;
-
-	if (hist_cur == hist_add_idx)
-		return NULL;
-
-	if (++hist_cur > hist_max)
-		hist_cur = 0;
-
-	if (hist_cur == hist_add_idx) {
-		ret = "";
-	} else
-		ret = hist_list[hist_cur];
-
-	return (ret);
-}
-
-#ifndef CONFIG_CMDLINE_EDITING
-static void cread_print_hist_list(void)
-{
-	int i;
-	unsigned long n;
-
-	n = hist_num - hist_max;
-
-	i = hist_add_idx + 1;
-	while (1) {
-		if (i > hist_max)
-			i = 0;
-		if (i == hist_add_idx)
-			break;
-		printf("%s\n", hist_list[i]);
-		n++;
-		i++;
-	}
-}
-#endif /* CONFIG_CMDLINE_EDITING */
-
-#define BEGINNING_OF_LINE() {			\
-	while (num) {				\
-		getcmd_putch(CTL_BACKSPACE);	\
-		num--;				\
-	}					\
-}
-
-#define ERASE_TO_EOL() {				\
-	if (num < eol_num) {				\
-		int tmp;				\
-		for (tmp = num; tmp < eol_num; tmp++)	\
-			getcmd_putch(' ');		\
-		while (tmp-- > num)			\
-			getcmd_putch(CTL_BACKSPACE);	\
-		eol_num = num;				\
-	}						\
-}
-
-#define REFRESH_TO_EOL() {			\
-	if (num < eol_num) {			\
-		wlen = eol_num - num;		\
-		putnstr(buf + num, wlen);	\
-		num = eol_num;			\
-	}					\
-}
-
-static void cread_add_char(char ichar, int insert, unsigned long *num,
-	       unsigned long *eol_num, char *buf, unsigned long len)
-{
-	unsigned long wlen;
-
-	/* room ??? */
-	if (insert || *num == *eol_num) {
-		if (*eol_num > len - 1) {
-			getcmd_cbeep();
-			return;
-		}
-		(*eol_num)++;
-	}
-
-	if (insert) {
-		wlen = *eol_num - *num;
-		if (wlen > 1) {
-			memmove(&buf[*num+1], &buf[*num], wlen-1);
-		}
-
-		buf[*num] = ichar;
-		putnstr(buf + *num, wlen);
-		(*num)++;
-		while (--wlen) {
-			getcmd_putch(CTL_BACKSPACE);
-		}
-	} else {
-		/* echo the character */
-		wlen = 1;
-		buf[*num] = ichar;
-		putnstr(buf + *num, wlen);
-		(*num)++;
-	}
-}
-
-static void cread_add_str(char *str, int strsize, int insert, unsigned long *num,
-	      unsigned long *eol_num, char *buf, unsigned long len)
-{
-	while (strsize--) {
-		cread_add_char(*str, insert, num, eol_num, buf, len);
-		str++;
-	}
-}
-
-static int cread_line(char *buf, unsigned int *len)
-{
-	unsigned long num = 0;
-	unsigned long eol_num = 0;
-	unsigned long rlen;
-	unsigned long wlen;
-	char ichar;
-	int insert = 1;
-	int esc_len = 0;
-	int rc = 0;
-	char esc_save[8];
-
-	while (1) {
-		rlen = 1;
-		ichar = getcmd_getch();
-
-		if ((ichar == '\n') || (ichar == '\r')) {
-			putc('\n');
-			break;
-		}
-
-		/*
-		 * handle standard linux xterm esc sequences for arrow key, etc.
-		 */
-		if (esc_len != 0) {
-			if (esc_len == 1) {
-				if (ichar == '[') {
-					esc_save[esc_len] = ichar;
-					esc_len = 2;
-				} else {
-					cread_add_str(esc_save, esc_len, insert,
-						      &num, &eol_num, buf, *len);
-					esc_len = 0;
-				}
-				continue;
-			}
-
-			switch (ichar) {
-
-			case 'D':	/* <- key */
-				ichar = CTL_CH('b');
-				esc_len = 0;
-				break;
-			case 'C':	/* -> key */
-				ichar = CTL_CH('f');
-				esc_len = 0;
-				break;	/* pass off to ^F handler */
-			case 'H':	/* Home key */
-				ichar = CTL_CH('a');
-				esc_len = 0;
-				break;	/* pass off to ^A handler */
-			case 'A':	/* up arrow */
-				ichar = CTL_CH('p');
-				esc_len = 0;
-				break;	/* pass off to ^P handler */
-			case 'B':	/* down arrow */
-				ichar = CTL_CH('n');
-				esc_len = 0;
-				break;	/* pass off to ^N handler */
-			default:
-				esc_save[esc_len++] = ichar;
-				cread_add_str(esc_save, esc_len, insert,
-					      &num, &eol_num, buf, *len);
-				esc_len = 0;
-				continue;
-			}
-		}
-
-		switch (ichar) {
-		case 0x1b:
-			if (esc_len == 0) {
-				esc_save[esc_len] = ichar;
-				esc_len = 1;
-			} else {
-				puts("impossible condition #876\n");
-				esc_len = 0;
-			}
-			break;
-
-		case CTL_CH('a'):
-			BEGINNING_OF_LINE();
-			break;
-		case CTL_CH('c'):	/* ^C - break */
-			*buf = '\0';	/* discard input */
-			return (-1);
-		case CTL_CH('f'):
-			if (num < eol_num) {
-				getcmd_putch(buf[num]);
-				num++;
-			}
-			break;
-		case CTL_CH('b'):
-			if (num) {
-				getcmd_putch(CTL_BACKSPACE);
-				num--;
-			}
-			break;
-		case CTL_CH('d'):
-			if (num < eol_num) {
-				wlen = eol_num - num - 1;
-				if (wlen) {
-					memmove(&buf[num], &buf[num+1], wlen);
-					putnstr(buf + num, wlen);
-				}
-
-				getcmd_putch(' ');
-				do {
-					getcmd_putch(CTL_BACKSPACE);
-				} while (wlen--);
-				eol_num--;
-			}
-			break;
-		case CTL_CH('k'):
-			ERASE_TO_EOL();
-			break;
-		case CTL_CH('e'):
-			REFRESH_TO_EOL();
-			break;
-		case CTL_CH('o'):
-			insert = !insert;
-			break;
-		case CTL_CH('x'):
-			BEGINNING_OF_LINE();
-			ERASE_TO_EOL();
-			break;
-		case DEL:
-		case DEL7:
-		case 8:
-			if (num) {
-				wlen = eol_num - num;
-				num--;
-				memmove(&buf[num], &buf[num+1], wlen);
-				getcmd_putch(CTL_BACKSPACE);
-				putnstr(buf + num, wlen);
-				getcmd_putch(' ');
-				do {
-					getcmd_putch(CTL_BACKSPACE);
-				} while (wlen--);
-				eol_num--;
-			}
-			break;
-		case CTL_CH('p'):
-		case CTL_CH('n'):
-		{
-			char * hline;
-
-			esc_len = 0;
-
-			if (ichar == CTL_CH('p'))
-				hline = hist_prev();
-			else
-				hline = hist_next();
-
-			if (!hline) {
-				getcmd_cbeep();
-				continue;
-			}
-
-			/* nuke the current line */
-			/* first, go home */
-			BEGINNING_OF_LINE();
-
-			/* erase to end of line */
-			ERASE_TO_EOL();
-
-			/* copy new line into place and display */
-			strcpy(buf, hline);
-			eol_num = strlen(buf);
-			REFRESH_TO_EOL();
-			continue;
-		}
-		default:
-			cread_add_char(ichar, insert, &num, &eol_num, buf, *len);
-			break;
-		}
-	}
-	*len = eol_num;
-	buf[eol_num] = '\0';	/* lose the newline */
-
-	if (buf[0] && buf[0] != CREAD_HIST_CHAR)
-		cread_add_to_hist(buf);
-	hist_cur = hist_add_idx;
-
-	return (rc);
-}
-
-#endif /* CONFIG_CMDLINE_EDITING */
-
 /****************************************************************************/
 
-/*
- * Prompt for input and read a line.
- * If  CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0,
- * time out when time goes past endtime (timebase time in ticks).
- * Return:	number of read characters
- *		-1 if break
- *		-2 if timed out
- */
-int readline (const char *const prompt)
-{
-#ifdef CONFIG_CMDLINE_EDITING
-	char *p = console_buffer;
-	unsigned int len=MAX_CMDBUF_SIZE;
-	int rc;
-	static int initted = 0;
-
-	if (!initted) {
-		hist_init();
-		initted = 1;
-	}
-
-	puts (prompt);
-
-	rc = cread_line(p, &len);
-	return rc < 0 ? rc : len;
-#else
-	char   *p = console_buffer;
-	int	n = 0;				/* buffer index		*/
-	int	plen = 0;			/* prompt length	*/
-	int	col;				/* output column cnt	*/
-	char	c;
-
-	/* print prompt */
-	if (prompt) {
-		plen = strlen (prompt);
-		puts (prompt);
-	}
-	col = plen;
-
-	for (;;) {
-#ifdef CONFIG_BOOT_RETRY_TIME
-		while (!tstc()) {	/* while no incoming data */
-			if (retry_time >= 0 && get_ticks() > endtime)
-				return (-2);	/* timed out */
-		}
-#endif
-		WATCHDOG_RESET();		/* Trigger watchdog, if needed */
-
-#ifdef CONFIG_SHOW_ACTIVITY
-		while (!tstc()) {
-			extern void show_activity(int arg);
-			show_activity(0);
-		}
-#endif
-		c = getc();
-
-		/*
-		 * Special character handling
-		 */
-		switch (c) {
-		case '\r':				/* Enter		*/
-		case '\n':
-			*p = '\0';
-			puts ("\r\n");
-			return (p - console_buffer);
-
-		case '\0':				/* nul			*/
-			continue;
-
-		case 0x03:				/* ^C - break		*/
-			console_buffer[0] = '\0';	/* discard input */
-			return (-1);
-
-		case 0x15:				/* ^U - erase line	*/
-			while (col > plen) {
-				puts (erase_seq);
-				--col;
-			}
-			p = console_buffer;
-			n = 0;
-			continue;
-
-		case 0x17:				/* ^W - erase word 	*/
-			p=delete_char(console_buffer, p, &col, &n, plen);
-			while ((n > 0) && (*p != ' ')) {
-				p=delete_char(console_buffer, p, &col, &n, plen);
-			}
-			continue;
-
-		case 0x08:				/* ^H  - backspace	*/
-		case 0x7F:				/* DEL - backspace	*/
-			p=delete_char(console_buffer, p, &col, &n, plen);
-			continue;
-
-		default:
-			/*
-			 * Must be a normal character then
-			 */
-			if (n < CONFIG_CBSIZE-2) {
-				if (c == '\t') {	/* expand TABs		*/
-#ifdef CONFIG_AUTO_COMPLETE
-					/* if auto completion triggered just continue */
-					*p = '\0';
-					if (cmd_auto_complete(prompt, console_buffer, &n, &col)) {
-						p = console_buffer + n;	/* reset */
-						continue;
-					}
-#endif
-					puts (tab_seq+(col&07));
-					col += 8 - (col&07);
-				} else {
-					++col;		/* echo input		*/
-					putc (c);
-				}
-				*p++ = c;
-				++n;
-			} else {			/* Buffer full		*/
-				putc ('\a');
-			}
-		}
-	}
-#endif /* CONFIG_CMDLINE_EDITING */
-}
-
-/****************************************************************************/
-
-#ifndef CONFIG_CMDLINE_EDITING
-static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen)
-{
-	char *s;
-
-	if (*np == 0) {
-		return (p);
-	}
-
-	if (*(--p) == '\t') {			/* will retype the whole line	*/
-		while (*colp > plen) {
-			puts (erase_seq);
-			(*colp)--;
-		}
-		for (s=buffer; s<p; ++s) {
-			if (*s == '\t') {
-				puts (tab_seq+((*colp) & 07));
-				*colp += 8 - ((*colp) & 07);
-			} else {
-				++(*colp);
-				putc (*s);
-			}
-		}
-	} else {
-		puts (erase_seq);
-		(*colp)--;
-	}
-	(*np)--;
-	return (p);
-}
-#endif /* CONFIG_CMDLINE_EDITING */
-
-/****************************************************************************/
-
-int parse_line (char *line, char *argv[])
-{
-	int nargs = 0;
-
-#ifdef DEBUG_PARSER
-	printf ("parse_line: \"%s\"\n", line);
-#endif
-	while (nargs < CONFIG_MAXARGS) {
-
-		/* skip any white space */
-		while ((*line == ' ') || (*line == '\t')) {
-			++line;
-		}
-
-		if (*line == '\0') {	/* end of line, no more args	*/
-			argv[nargs] = NULL;
-#ifdef DEBUG_PARSER
-		printf ("parse_line: nargs=%d\n", nargs);
-#endif
-			return (nargs);
-		}
-
-		argv[nargs++] = line;	/* begin of argument string	*/
-
-		/* find end of string */
-		while (*line && (*line != ' ') && (*line != '\t')) {
-			++line;
-		}
-
-		if (*line == '\0') {	/* end of line, no more args	*/
-			argv[nargs] = NULL;
-#ifdef DEBUG_PARSER
-		printf ("parse_line: nargs=%d\n", nargs);
-#endif
-			return (nargs);
-		}
-
-		*line++ = '\0';		/* terminate current arg	 */
-	}
-
-	printf ("** Too many args (max. %d) **\n", CONFIG_MAXARGS);
-
-#ifdef DEBUG_PARSER
-	printf ("parse_line: nargs=%d\n", nargs);
-#endif
-	return (nargs);
-}
-
-/****************************************************************************/
-
-static void process_macros (const char *input, char *output)
-{
-	char c, prev;
-	const char *varname_start = NULL;
-	int inputcnt = strlen (input);
-	int outputcnt = CONFIG_CBSIZE;
-	int state = 0;		/* 0 = waiting for '$'  */
-
-	/* 1 = waiting for '(' or '{' */
-	/* 2 = waiting for ')' or '}' */
-	/* 3 = waiting for '''  */
-#ifdef DEBUG_PARSER
-	char *output_start = output;
-
-	printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input),
-		input);
-#endif
-
-	prev = '\0';		/* previous character   */
-
-	while (inputcnt && outputcnt) {
-		c = *input++;
-		inputcnt--;
-
-		if (state != 3) {
-			/* remove one level of escape characters */
-			if ((c == '\\') && (prev != '\\')) {
-				if (inputcnt-- == 0)
-					break;
-				prev = c;
-				c = *input++;
-			}
-		}
-
-		switch (state) {
-		case 0:	/* Waiting for (unescaped) $    */
-			if ((c == '\'') && (prev != '\\')) {
-				state = 3;
-				break;
-			}
-			if ((c == '$') && (prev != '\\')) {
-				state++;
-			} else {
-				*(output++) = c;
-				outputcnt--;
-			}
-			break;
-		case 1:	/* Waiting for (        */
-			if (c == '(' || c == '{') {
-				state++;
-				varname_start = input;
-			} else {
-				state = 0;
-				*(output++) = '$';
-				outputcnt--;
-
-				if (outputcnt) {
-					*(output++) = c;
-					outputcnt--;
-				}
-			}
-			break;
-		case 2:	/* Waiting for )        */
-			if (c == ')' || c == '}') {
-				int i;
-				char envname[CONFIG_CBSIZE], *envval;
-				int envcnt = input - varname_start - 1;	/* Varname # of chars */
-
-				/* Get the varname */
-				for (i = 0; i < envcnt; i++) {
-					envname[i] = varname_start[i];
-				}
-				envname[i] = 0;
-
-				/* Get its value */
-				envval = getenv (envname);
-
-				/* Copy into the line if it exists */
-				if (envval != NULL)
-					while ((*envval) && outputcnt) {
-						*(output++) = *(envval++);
-						outputcnt--;
-					}
-				/* Look for another '$' */
-				state = 0;
-			}
-			break;
-		case 3:	/* Waiting for '        */
-			if ((c == '\'') && (prev != '\\')) {
-				state = 0;
-			} else {
-				*(output++) = c;
-				outputcnt--;
-			}
-			break;
-		}
-		prev = c;
-	}
-
-	if (outputcnt)
-		*output = 0;
-
-#ifdef DEBUG_PARSER
-	printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n",
-		strlen (output_start), output_start);
-#endif
-}
-
-/****************************************************************************
- * returns:
- *	1  - command executed, repeatable
- *	0  - command executed but not repeatable, interrupted commands are
- *	     always considered not repeatable
- *	-1 - not executed (unrecognized, bootd recursion or too many args)
- *           (If cmd is NULL or "" or longer than CONFIG_CBSIZE-1 it is
- *           considered unrecognized)
- *
- * WARNING:
- *
- * We must create a temporary copy of the command since the command we get
- * may be the result from getenv(), which returns a pointer directly to
- * the environment data, which may change magicly when the command we run
- * creates or modifies environment variables (like "bootp" does).
- */
-
-int run_command (const char *cmd, int flag)
-{
-	cmd_tbl_t *cmdtp;
-	char cmdbuf[CONFIG_CBSIZE];	/* working copy of cmd		*/
-	char *token;			/* start of token in cmdbuf	*/
-	char *sep;			/* end of token (separator) in cmdbuf */
-	char finaltoken[CONFIG_CBSIZE];
-	char *str = cmdbuf;
-	char *argv[CONFIG_MAXARGS + 1];	/* NULL terminated	*/
-	int argc, inquotes;
-	int repeatable = 1;
-	int rc = 0;
-
-#ifdef DEBUG_PARSER
-	printf ("[RUN_COMMAND] cmd[%p]=\"", cmd);
-	puts (cmd ? cmd : "NULL");	/* use puts - string may be loooong */
-	puts ("\"\n");
-#endif
-
-	clear_ctrlc();		/* forget any previous Control C */
-
-	if (!cmd || !*cmd) {
-		return -1;	/* empty command */
-	}
-
-	if (strlen(cmd) >= CONFIG_CBSIZE) {
-		puts ("## Command too long!\n");
-		return -1;
-	}
-
-	strcpy (cmdbuf, cmd);
-
-	/* Process separators and check for invalid
-	 * repeatable commands
-	 */
-
-#ifdef DEBUG_PARSER
-	printf ("[PROCESS_SEPARATORS] %s\n", cmd);
-#endif
-	while (*str) {
-
-		/*
-		 * Find separator, or string end
-		 * Allow simple escape of ';' by writing "\;"
-		 */
-		for (inquotes = 0, sep = str; *sep; sep++) {
-			if ((*sep=='\'') &&
-			    (*(sep-1) != '\\'))
-				inquotes=!inquotes;
-
-			if (!inquotes &&
-			    (*sep == ';') &&	/* separator		*/
-			    ( sep != str) &&	/* past string start	*/
-			    (*(sep-1) != '\\'))	/* and NOT escaped	*/
-				break;
-		}
-
-		/*
-		 * Limit the token to data between separators
-		 */
-		token = str;
-		if (*sep) {
-			str = sep + 1;	/* start of command for next pass */
-			*sep = '\0';
-		}
-		else
-			str = sep;	/* no more commands for next pass */
-#ifdef DEBUG_PARSER
-		printf ("token: \"%s\"\n", token);
-#endif
-
-		/* find macros in this token and replace them */
-		process_macros (token, finaltoken);
-
-		/* Extract arguments */
-		if ((argc = parse_line (finaltoken, argv)) == 0) {
-			rc = -1;	/* no command at all */
-			continue;
-		}
-
-		/* Look up command in command table */
-		if ((cmdtp = find_cmd(argv[0])) == NULL) {
-			printf ("Unknown command '%s' - try 'help'\n", argv[0]);
-			rc = -1;	/* give up after bad command */
-			continue;
-		}
-
-		/* found - check max args */
-		if (argc > cmdtp->maxargs) {
-			printf ("Usage:\n%s\n", cmdtp->usage);
-			rc = -1;
-			continue;
-		}
-
-#if (CONFIG_COMMANDS & CFG_CMD_BOOTD)
-		/* avoid "bootd" recursion */
-		if (cmdtp->cmd == do_bootd) {
-#ifdef DEBUG_PARSER
-			printf ("[%s]\n", finaltoken);
-#endif
-			if (flag & CMD_FLAG_BOOTD) {
-				puts ("'bootd' recursion detected\n");
-				rc = -1;
-				continue;
-			} else {
-				flag |= CMD_FLAG_BOOTD;
-			}
-		}
-#endif	/* CFG_CMD_BOOTD */
-
-		/* OK - call function to do the command */
-		if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) {
-			rc = -1;
-		}
-
-		repeatable &= cmdtp->repeatable;
-
-		/* Did the user stop this? */
-		if (had_ctrlc ())
-			return 0;	/* if stopped then not repeatable */
-	}
-
-	return rc ? rc : repeatable;
-}
-
 /****************************************************************************/
 
 int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
diff --git a/common/parser.c b/common/parser.c
new file mode 100644
index 0000000000..5716a13212
--- /dev/null
+++ b/common/parser.c
@@ -0,0 +1,302 @@
+#include <common.h>
+#include <command.h>
+
+int parse_line (char *line, char *argv[])
+{
+	int nargs = 0;
+
+#ifdef DEBUG_PARSER
+	printf ("parse_line: \"%s\"\n", line);
+#endif
+	while (nargs < CONFIG_MAXARGS) {
+
+		/* skip any white space */
+		while ((*line == ' ') || (*line == '\t')) {
+			++line;
+		}
+
+		if (*line == '\0') {	/* end of line, no more args	*/
+			argv[nargs] = NULL;
+#ifdef DEBUG_PARSER
+		printf ("parse_line: nargs=%d\n", nargs);
+#endif
+			return (nargs);
+		}
+
+		argv[nargs++] = line;	/* begin of argument string	*/
+
+		/* find end of string */
+		while (*line && (*line != ' ') && (*line != '\t')) {
+			++line;
+		}
+
+		if (*line == '\0') {	/* end of line, no more args	*/
+			argv[nargs] = NULL;
+#ifdef DEBUG_PARSER
+		printf ("parse_line: nargs=%d\n", nargs);
+#endif
+			return (nargs);
+		}
+
+		*line++ = '\0';		/* terminate current arg	 */
+	}
+
+	printf ("** Too many args (max. %d) **\n", CONFIG_MAXARGS);
+
+#ifdef DEBUG_PARSER
+	printf ("parse_line: nargs=%d\n", nargs);
+#endif
+	return (nargs);
+}
+
+static void process_macros (const char *input, char *output)
+{
+	char c, prev;
+	const char *varname_start = NULL;
+	int inputcnt = strlen (input);
+	int outputcnt = CONFIG_CBSIZE;
+	int state = 0;		/* 0 = waiting for '$'  */
+
+	/* 1 = waiting for '(' or '{' */
+	/* 2 = waiting for ')' or '}' */
+	/* 3 = waiting for '''  */
+#ifdef DEBUG_PARSER
+	char *output_start = output;
+
+	printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input),
+		input);
+#endif
+
+	prev = '\0';		/* previous character   */
+
+	while (inputcnt && outputcnt) {
+		c = *input++;
+		inputcnt--;
+
+		if (state != 3) {
+			/* remove one level of escape characters */
+			if ((c == '\\') && (prev != '\\')) {
+				if (inputcnt-- == 0)
+					break;
+				prev = c;
+				c = *input++;
+			}
+		}
+
+		switch (state) {
+		case 0:	/* Waiting for (unescaped) $    */
+			if ((c == '\'') && (prev != '\\')) {
+				state = 3;
+				break;
+			}
+			if ((c == '$') && (prev != '\\')) {
+				state++;
+			} else {
+				*(output++) = c;
+				outputcnt--;
+			}
+			break;
+		case 1:	/* Waiting for (        */
+			if (c == '(' || c == '{') {
+				state++;
+				varname_start = input;
+			} else {
+				state = 0;
+				*(output++) = '$';
+				outputcnt--;
+
+				if (outputcnt) {
+					*(output++) = c;
+					outputcnt--;
+				}
+			}
+			break;
+		case 2:	/* Waiting for )        */
+			if (c == ')' || c == '}') {
+				int i;
+				char envname[CONFIG_CBSIZE], *envval;
+				int envcnt = input - varname_start - 1;	/* Varname # of chars */
+
+				/* Get the varname */
+				for (i = 0; i < envcnt; i++) {
+					envname[i] = varname_start[i];
+				}
+				envname[i] = 0;
+
+				/* Get its value */
+				envval = getenv (envname);
+
+				/* Copy into the line if it exists */
+				if (envval != NULL)
+					while ((*envval) && outputcnt) {
+						*(output++) = *(envval++);
+						outputcnt--;
+					}
+				/* Look for another '$' */
+				state = 0;
+			}
+			break;
+		case 3:	/* Waiting for '        */
+			if ((c == '\'') && (prev != '\\')) {
+				state = 0;
+			} else {
+				*(output++) = c;
+				outputcnt--;
+			}
+			break;
+		}
+		prev = c;
+	}
+
+	if (outputcnt)
+		*output = 0;
+
+#ifdef DEBUG_PARSER
+	printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n",
+		strlen (output_start), output_start);
+#endif
+}
+
+/****************************************************************************
+ * returns:
+ *	1  - command executed, repeatable
+ *	0  - command executed but not repeatable, interrupted commands are
+ *	     always considered not repeatable
+ *	-1 - not executed (unrecognized, bootd recursion or too many args)
+ *           (If cmd is NULL or "" or longer than CONFIG_CBSIZE-1 it is
+ *           considered unrecognized)
+ *
+ * WARNING:
+ *
+ * We must create a temporary copy of the command since the command we get
+ * may be the result from getenv(), which returns a pointer directly to
+ * the environment data, which may change magicly when the command we run
+ * creates or modifies environment variables (like "bootp" does).
+ */
+
+int run_command (const char *cmd, int flag)
+{
+	cmd_tbl_t *cmdtp;
+	char cmdbuf[CONFIG_CBSIZE];	/* working copy of cmd		*/
+	char *token;			/* start of token in cmdbuf	*/
+	char *sep;			/* end of token (separator) in cmdbuf */
+	char finaltoken[CONFIG_CBSIZE];
+	char *str = cmdbuf;
+	char *argv[CONFIG_MAXARGS + 1];	/* NULL terminated	*/
+	int argc, inquotes;
+	int repeatable = 1;
+	int rc = 0;
+
+#ifdef DEBUG_PARSER
+	printf ("[RUN_COMMAND] cmd[%p]=\"", cmd);
+	puts (cmd ? cmd : "NULL");	/* use puts - string may be loooong */
+	puts ("\"\n");
+#endif
+
+	clear_ctrlc();		/* forget any previous Control C */
+
+	if (!cmd || !*cmd) {
+		return -1;	/* empty command */
+	}
+
+	if (strlen(cmd) >= CONFIG_CBSIZE) {
+		puts ("## Command too long!\n");
+		return -1;
+	}
+
+	strcpy (cmdbuf, cmd);
+
+	/* Process separators and check for invalid
+	 * repeatable commands
+	 */
+
+#ifdef DEBUG_PARSER
+	printf ("[PROCESS_SEPARATORS] %s\n", cmd);
+#endif
+	while (*str) {
+
+		/*
+		 * Find separator, or string end
+		 * Allow simple escape of ';' by writing "\;"
+		 */
+		for (inquotes = 0, sep = str; *sep; sep++) {
+			if ((*sep=='\'') &&
+			    (*(sep-1) != '\\'))
+				inquotes=!inquotes;
+
+			if (!inquotes &&
+			    (*sep == ';') &&	/* separator		*/
+			    ( sep != str) &&	/* past string start	*/
+			    (*(sep-1) != '\\'))	/* and NOT escaped	*/
+				break;
+		}
+
+		/*
+		 * Limit the token to data between separators
+		 */
+		token = str;
+		if (*sep) {
+			str = sep + 1;	/* start of command for next pass */
+			*sep = '\0';
+		}
+		else
+			str = sep;	/* no more commands for next pass */
+#ifdef DEBUG_PARSER
+		printf ("token: \"%s\"\n", token);
+#endif
+
+		/* find macros in this token and replace them */
+		process_macros (token, finaltoken);
+
+		/* Extract arguments */
+		if ((argc = parse_line (finaltoken, argv)) == 0) {
+			rc = -1;	/* no command at all */
+			continue;
+		}
+
+		/* Look up command in command table */
+		if ((cmdtp = find_cmd(argv[0])) == NULL) {
+			printf ("Unknown command '%s' - try 'help'\n", argv[0]);
+			rc = -1;	/* give up after bad command */
+			continue;
+		}
+
+		/* found - check max args */
+		if (argc > cmdtp->maxargs) {
+			printf ("Usage:\n%s\n", cmdtp->usage);
+			rc = -1;
+			continue;
+		}
+
+#if (CONFIG_COMMANDS & CFG_CMD_BOOTD)
+		/* avoid "bootd" recursion */
+		if (cmdtp->cmd == do_bootd) {
+#ifdef DEBUG_PARSER
+			printf ("[%s]\n", finaltoken);
+#endif
+			if (flag & CMD_FLAG_BOOTD) {
+				puts ("'bootd' recursion detected\n");
+				rc = -1;
+				continue;
+			} else {
+				flag |= CMD_FLAG_BOOTD;
+			}
+		}
+#endif	/* CFG_CMD_BOOTD */
+
+		/* OK - call function to do the command */
+		if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) {
+			rc = -1;
+		}
+
+		repeatable &= cmdtp->repeatable;
+
+		/* Did the user stop this? */
+		if (had_ctrlc ())
+			return 0;	/* if stopped then not repeatable */
+	}
+
+	return rc ? rc : repeatable;
+}
+
+/****************************************************************************/
diff --git a/common/readline.c b/common/readline.c
new file mode 100644
index 0000000000..e45f51bc29
--- /dev/null
+++ b/common/readline.c
@@ -0,0 +1,390 @@
+#include <common.h>
+
+extern char console_buffer[CONFIG_CBSIZE];	/* console I/O buffer	*/
+
+/*
+ * cmdline-editing related codes from vivi.
+ * Author: Janghoon Lyu <nandy@mizi.com>
+ */
+
+#define putnstr(str,n)	do {			\
+		printf ("%.*s", n, str);	\
+	} while (0)
+
+#define CTL_CH(c)		((c) - 'a' + 1)
+
+#define MAX_CMDBUF_SIZE		256
+
+#define CTL_BACKSPACE		('\b')
+#define DEL			((char)255)
+#define DEL7			((char)127)
+#define CREAD_HIST_CHAR		('!')
+
+#define getcmd_putch(ch)	putc(ch)
+#define getcmd_getch()		getc()
+#define getcmd_cbeep()		getcmd_putch('\a')
+
+#define HIST_MAX		20
+#define HIST_SIZE		MAX_CMDBUF_SIZE
+
+static int hist_max = 0;
+static int hist_add_idx = 0;
+static int hist_cur = -1;
+unsigned hist_num = 0;
+
+char* hist_list[HIST_MAX];
+char hist_lines[HIST_MAX][HIST_SIZE];
+
+#define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1)
+
+static void hist_init(void)
+{
+	int i;
+
+	hist_max = 0;
+	hist_add_idx = 0;
+	hist_cur = -1;
+	hist_num = 0;
+
+	for (i = 0; i < HIST_MAX; i++) {
+		hist_list[i] = hist_lines[i];
+		hist_list[i][0] = '\0';
+	}
+}
+
+static void cread_add_to_hist(char *line)
+{
+	strcpy(hist_list[hist_add_idx], line);
+
+	if (++hist_add_idx >= HIST_MAX)
+		hist_add_idx = 0;
+
+	if (hist_add_idx > hist_max)
+		hist_max = hist_add_idx;
+
+	hist_num++;
+}
+
+static char* hist_prev(void)
+{
+	char *ret;
+	int old_cur;
+
+	if (hist_cur < 0)
+		return NULL;
+
+	old_cur = hist_cur;
+	if (--hist_cur < 0)
+		hist_cur = hist_max;
+
+	if (hist_cur == hist_add_idx) {
+		hist_cur = old_cur;
+		ret = NULL;
+	} else
+		ret = hist_list[hist_cur];
+
+	return (ret);
+}
+
+static char* hist_next(void)
+{
+	char *ret;
+
+	if (hist_cur < 0)
+		return NULL;
+
+	if (hist_cur == hist_add_idx)
+		return NULL;
+
+	if (++hist_cur > hist_max)
+		hist_cur = 0;
+
+	if (hist_cur == hist_add_idx) {
+		ret = "";
+	} else
+		ret = hist_list[hist_cur];
+
+	return (ret);
+}
+
+#define BEGINNING_OF_LINE() {			\
+	while (num) {				\
+		getcmd_putch(CTL_BACKSPACE);	\
+		num--;				\
+	}					\
+}
+
+#define ERASE_TO_EOL() {				\
+	if (num < eol_num) {				\
+		int tmp;				\
+		for (tmp = num; tmp < eol_num; tmp++)	\
+			getcmd_putch(' ');		\
+		while (tmp-- > num)			\
+			getcmd_putch(CTL_BACKSPACE);	\
+		eol_num = num;				\
+	}						\
+}
+
+#define REFRESH_TO_EOL() {			\
+	if (num < eol_num) {			\
+		wlen = eol_num - num;		\
+		putnstr(buf + num, wlen);	\
+		num = eol_num;			\
+	}					\
+}
+
+static void cread_add_char(char ichar, int insert, unsigned long *num,
+	       unsigned long *eol_num, char *buf, unsigned long len)
+{
+	unsigned long wlen;
+
+	/* room ??? */
+	if (insert || *num == *eol_num) {
+		if (*eol_num > len - 1) {
+			getcmd_cbeep();
+			return;
+		}
+		(*eol_num)++;
+	}
+
+	if (insert) {
+		wlen = *eol_num - *num;
+		if (wlen > 1) {
+			memmove(&buf[*num+1], &buf[*num], wlen-1);
+		}
+
+		buf[*num] = ichar;
+		putnstr(buf + *num, wlen);
+		(*num)++;
+		while (--wlen) {
+			getcmd_putch(CTL_BACKSPACE);
+		}
+	} else {
+		/* echo the character */
+		wlen = 1;
+		buf[*num] = ichar;
+		putnstr(buf + *num, wlen);
+		(*num)++;
+	}
+}
+
+static void cread_add_str(char *str, int strsize, int insert, unsigned long *num,
+	      unsigned long *eol_num, char *buf, unsigned long len)
+{
+	while (strsize--) {
+		cread_add_char(*str, insert, num, eol_num, buf, len);
+		str++;
+	}
+}
+
+static int cread_line(char *buf, unsigned int *len)
+{
+	unsigned long num = 0;
+	unsigned long eol_num = 0;
+	unsigned long rlen;
+	unsigned long wlen;
+	char ichar;
+	int insert = 1;
+	int esc_len = 0;
+	int rc = 0;
+	char esc_save[8];
+
+	while (1) {
+		rlen = 1;
+		ichar = getcmd_getch();
+
+		if ((ichar == '\n') || (ichar == '\r')) {
+			putc('\n');
+			break;
+		}
+
+		/*
+		 * handle standard linux xterm esc sequences for arrow key, etc.
+		 */
+		if (esc_len != 0) {
+			if (esc_len == 1) {
+				if (ichar == '[') {
+					esc_save[esc_len] = ichar;
+					esc_len = 2;
+				} else {
+					cread_add_str(esc_save, esc_len, insert,
+						      &num, &eol_num, buf, *len);
+					esc_len = 0;
+				}
+				continue;
+			}
+
+			switch (ichar) {
+
+			case 'D':	/* <- key */
+				ichar = CTL_CH('b');
+				esc_len = 0;
+				break;
+			case 'C':	/* -> key */
+				ichar = CTL_CH('f');
+				esc_len = 0;
+				break;	/* pass off to ^F handler */
+			case 'H':	/* Home key */
+				ichar = CTL_CH('a');
+				esc_len = 0;
+				break;	/* pass off to ^A handler */
+			case 'A':	/* up arrow */
+				ichar = CTL_CH('p');
+				esc_len = 0;
+				break;	/* pass off to ^P handler */
+			case 'B':	/* down arrow */
+				ichar = CTL_CH('n');
+				esc_len = 0;
+				break;	/* pass off to ^N handler */
+			default:
+				esc_save[esc_len++] = ichar;
+				cread_add_str(esc_save, esc_len, insert,
+					      &num, &eol_num, buf, *len);
+				esc_len = 0;
+				continue;
+			}
+		}
+
+		switch (ichar) {
+		case 0x1b:
+			if (esc_len == 0) {
+				esc_save[esc_len] = ichar;
+				esc_len = 1;
+			} else {
+				puts("impossible condition #876\n");
+				esc_len = 0;
+			}
+			break;
+
+		case CTL_CH('a'):
+			BEGINNING_OF_LINE();
+			break;
+		case CTL_CH('c'):	/* ^C - break */
+			*buf = '\0';	/* discard input */
+			return (-1);
+		case CTL_CH('f'):
+			if (num < eol_num) {
+				getcmd_putch(buf[num]);
+				num++;
+			}
+			break;
+		case CTL_CH('b'):
+			if (num) {
+				getcmd_putch(CTL_BACKSPACE);
+				num--;
+			}
+			break;
+		case CTL_CH('d'):
+			if (num < eol_num) {
+				wlen = eol_num - num - 1;
+				if (wlen) {
+					memmove(&buf[num], &buf[num+1], wlen);
+					putnstr(buf + num, wlen);
+				}
+
+				getcmd_putch(' ');
+				do {
+					getcmd_putch(CTL_BACKSPACE);
+				} while (wlen--);
+				eol_num--;
+			}
+			break;
+		case CTL_CH('k'):
+			ERASE_TO_EOL();
+			break;
+		case CTL_CH('e'):
+			REFRESH_TO_EOL();
+			break;
+		case CTL_CH('o'):
+			insert = !insert;
+			break;
+		case CTL_CH('x'):
+			BEGINNING_OF_LINE();
+			ERASE_TO_EOL();
+			break;
+		case DEL:
+		case DEL7:
+		case 8:
+			if (num) {
+				wlen = eol_num - num;
+				num--;
+				memmove(&buf[num], &buf[num+1], wlen);
+				getcmd_putch(CTL_BACKSPACE);
+				putnstr(buf + num, wlen);
+				getcmd_putch(' ');
+				do {
+					getcmd_putch(CTL_BACKSPACE);
+				} while (wlen--);
+				eol_num--;
+			}
+			break;
+		case CTL_CH('p'):
+		case CTL_CH('n'):
+		{
+			char * hline;
+
+			esc_len = 0;
+
+			if (ichar == CTL_CH('p'))
+				hline = hist_prev();
+			else
+				hline = hist_next();
+
+			if (!hline) {
+				getcmd_cbeep();
+				continue;
+			}
+
+			/* nuke the current line */
+			/* first, go home */
+			BEGINNING_OF_LINE();
+
+			/* erase to end of line */
+			ERASE_TO_EOL();
+
+			/* copy new line into place and display */
+			strcpy(buf, hline);
+			eol_num = strlen(buf);
+			REFRESH_TO_EOL();
+			continue;
+		}
+		default:
+			cread_add_char(ichar, insert, &num, &eol_num, buf, *len);
+			break;
+		}
+	}
+	*len = eol_num;
+	buf[eol_num] = '\0';	/* lose the newline */
+
+	if (buf[0] && buf[0] != CREAD_HIST_CHAR)
+		cread_add_to_hist(buf);
+	hist_cur = hist_add_idx;
+
+	return (rc);
+}
+
+/*
+ * Prompt for input and read a line.
+ * If  CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0,
+ * time out when time goes past endtime (timebase time in ticks).
+ * Return:	number of read characters
+ *		-1 if break
+ *		-2 if timed out
+ */
+int readline (const char *const prompt)
+{
+	char *p = console_buffer;
+	unsigned int len=MAX_CMDBUF_SIZE;
+	int rc;
+	static int initted = 0;
+
+	if (!initted) {
+		hist_init();
+		initted = 1;
+	}
+
+	puts (prompt);
+
+	rc = cread_line(p, &len);
+	return rc < 0 ? rc : len;
+}
diff --git a/common/readline_simple.c b/common/readline_simple.c
new file mode 100644
index 0000000000..51b5f09484
--- /dev/null
+++ b/common/readline_simple.c
@@ -0,0 +1,144 @@
+#include <common.h>
+#include <watchdog.h>
+
+extern char console_buffer[CONFIG_CBSIZE];	/* console I/O buffer	*/
+
+static char erase_seq[] = "\b \b";		/* erase sequence	*/
+static char   tab_seq[] = "        ";		/* used to expand TABs	*/
+
+static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen)
+{
+	char *s;
+
+	if (*np == 0) {
+		return (p);
+	}
+
+	if (*(--p) == '\t') {			/* will retype the whole line	*/
+		while (*colp > plen) {
+			puts (erase_seq);
+			(*colp)--;
+		}
+		for (s=buffer; s<p; ++s) {
+			if (*s == '\t') {
+				puts (tab_seq+((*colp) & 07));
+				*colp += 8 - ((*colp) & 07);
+			} else {
+				++(*colp);
+				putc (*s);
+			}
+		}
+	} else {
+		puts (erase_seq);
+		(*colp)--;
+	}
+	(*np)--;
+	return (p);
+}
+
+/*
+ * Prompt for input and read a line.
+ * If  CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0,
+ * time out when time goes past endtime (timebase time in ticks).
+ * Return:	number of read characters
+ *		-1 if break
+ *		-2 if timed out
+ */
+int readline (const char *const prompt)
+{
+	char   *p = console_buffer;
+	int	n = 0;				/* buffer index		*/
+	int	plen = 0;			/* prompt length	*/
+	int	col;				/* output column cnt	*/
+	char	c;
+
+	/* print prompt */
+	if (prompt) {
+		plen = strlen (prompt);
+		puts (prompt);
+	}
+	col = plen;
+
+	for (;;) {
+#ifdef CONFIG_BOOT_RETRY_TIME
+		while (!tstc()) {	/* while no incoming data */
+			if (retry_time >= 0 && get_ticks() > endtime)
+				return (-2);	/* timed out */
+		}
+#endif
+		WATCHDOG_RESET();		/* Trigger watchdog, if needed */
+
+#ifdef CONFIG_SHOW_ACTIVITY
+		while (!tstc()) {
+			extern void show_activity(int arg);
+			show_activity(0);
+		}
+#endif
+		c = getc();
+
+		/*
+		 * Special character handling
+		 */
+		switch (c) {
+		case '\r':				/* Enter		*/
+		case '\n':
+			*p = '\0';
+			puts ("\r\n");
+			return (p - console_buffer);
+
+		case '\0':				/* nul			*/
+			continue;
+
+		case 0x03:				/* ^C - break		*/
+			console_buffer[0] = '\0';	/* discard input */
+			return (-1);
+
+		case 0x15:				/* ^U - erase line	*/
+			while (col > plen) {
+				puts (erase_seq);
+				--col;
+			}
+			p = console_buffer;
+			n = 0;
+			continue;
+
+		case 0x17:				/* ^W - erase word 	*/
+			p=delete_char(console_buffer, p, &col, &n, plen);
+			while ((n > 0) && (*p != ' ')) {
+				p=delete_char(console_buffer, p, &col, &n, plen);
+			}
+			continue;
+
+		case 0x08:				/* ^H  - backspace	*/
+		case 0x7F:				/* DEL - backspace	*/
+			p=delete_char(console_buffer, p, &col, &n, plen);
+			continue;
+
+		default:
+			/*
+			 * Must be a normal character then
+			 */
+			if (n < CONFIG_CBSIZE-2) {
+				if (c == '\t') {	/* expand TABs		*/
+#ifdef CONFIG_AUTO_COMPLETE
+					/* if auto completion triggered just continue */
+					*p = '\0';
+					if (cmd_auto_complete(prompt, console_buffer, &n, &col)) {
+						p = console_buffer + n;	/* reset */
+						continue;
+					}
+#endif
+					puts (tab_seq+(col&07));
+					col += 8 - (col&07);
+				} else {
+					++col;		/* echo input		*/
+					putc (c);
+				}
+				*p++ = c;
+				++n;
+			} else {			/* Buffer full		*/
+				putc ('\a');
+			}
+		}
+	}
+}