[U-Boot] [PATCH 04/14] Split out simple parser and readline into separate files
Simon Glass
sjg at chromium.org
Fri Apr 11 04:01:26 CEST 2014
It doesn't make sense to have the simple parser and the readline code
all in main. Split them out into separate files.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
common/Makefile | 9 +-
common/cli_readline.c | 670 ++++++++++++++++++++++++++++++++
common/cli_simple.c | 338 ++++++++++++++++
common/main.c | 1017 +------------------------------------------------
include/cli.h | 5 +
5 files changed, 1026 insertions(+), 1013 deletions(-)
create mode 100644 common/cli_readline.c
create mode 100644 common/cli_simple.c
diff --git a/common/Makefile b/common/Makefile
index 12068ac..44967ea 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -11,7 +11,14 @@ obj-y += main.o
obj-y += command.o
obj-y += exports.o
obj-y += hash.o
-obj-$(CONFIG_SYS_HUSH_PARSER) += cli_hush.o
+ifdef CONFIG_SYS_HUSH_PARSER
+obj-y += cli_hush.o
+endif
+
+# We always have this since drivers/ddr/fs/interactive.c needs it
+obj-y += cli_simple.o
+
+obj-y += cli_readline.o
obj-y += s_record.o
obj-y += xyzModem.o
obj-y += cmd_disk.o
diff --git a/common/cli_readline.c b/common/cli_readline.c
new file mode 100644
index 0000000..cea0b7c
--- /dev/null
+++ b/common/cli_readline.c
@@ -0,0 +1,670 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * Add to readline cmdline-editing by
+ * (C) Copyright 2005
+ * JinHua Luo, GuangDong Linux Center, <luo.jinhua at gd-linux.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <cli.h>
+#include <watchdog.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const char erase_seq[] = "\b \b"; /* erase sequence */
+static const char tab_seq[] = " "; /* used to expand TABs */
+
+#ifdef CONFIG_BOOT_RETRY_TIME
+static uint64_t endtime; /* must be set, default is instant timeout */
+static int retry_time = -1; /* -1 so can call readline before main_loop */
+#endif
+
+char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */
+
+#ifndef CONFIG_BOOT_RETRY_MIN
+#define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME
+#endif
+
+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;
+}
+
+#ifdef CONFIG_CMDLINE_EDITING
+
+/*
+ * cmdline-editing related codes from vivi.
+ * Author: Janghoon Lyu <nandy at mizi.com>
+ */
+
+#define putnstr(str, n) printf("%.*s", (int)n, str)
+
+#define CTL_CH(c) ((c) - 'a' + 1)
+#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 CONFIG_SYS_CBSIZE
+
+static int hist_max;
+static int hist_add_idx;
+static int hist_cur = -1;
+static unsigned hist_num;
+
+static char *hist_list[HIST_MAX];
+static char hist_lines[HIST_MAX][HIST_SIZE + 1]; /* Save room for NULL */
+
+#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) { \
+ printf("%*s", (int)(eol_num - num), ""); \
+ do { \
+ getcmd_putch(CTL_BACKSPACE); \
+ } while (--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(const char *const prompt, char *buf, unsigned int *len,
+ int timeout)
+{
+ unsigned long num = 0;
+ unsigned long eol_num = 0;
+ unsigned long wlen;
+ char ichar;
+ int insert = 1;
+ int esc_len = 0;
+ char esc_save[8];
+ int init_len = strlen(buf);
+ int first = 1;
+
+ if (init_len)
+ cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len);
+
+ while (1) {
+#ifdef CONFIG_BOOT_RETRY_TIME
+ while (!tstc()) { /* while no incoming data */
+ if (retry_time >= 0 && get_ticks() > endtime)
+ return -2; /* timed out */
+ WATCHDOG_RESET();
+ }
+#endif
+ if (first && timeout) {
+ uint64_t etime = endtick(timeout);
+
+ while (!tstc()) { /* while no incoming data */
+ if (get_ticks() >= etime)
+ return -2; /* timed out */
+ WATCHDOG_RESET();
+ }
+ first = 0;
+ }
+
+ 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'):
+ case CTL_CH('u'):
+ 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;
+ }
+#ifdef CONFIG_AUTO_COMPLETE
+ case '\t': {
+ int num2, col;
+
+ /* do not autocomplete when in the middle */
+ if (num < eol_num) {
+ getcmd_cbeep();
+ break;
+ }
+
+ buf[num] = '\0';
+ col = strlen(prompt) + eol_num;
+ num2 = num;
+ if (cmd_auto_complete(prompt, buf, &num2, &col)) {
+ col = num2 - num;
+ num += col;
+ eol_num += col;
+ }
+ break;
+ }
+#endif
+ 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 0;
+}
+
+#endif /* CONFIG_CMDLINE_EDITING */
+
+/****************************************************************************/
+
+int readline(const char *const prompt)
+{
+ /*
+ * If console_buffer isn't 0-length the user will be prompted to modify
+ * it instead of entering it from scratch as desired.
+ */
+ console_buffer[0] = '\0';
+
+ return readline_into_buffer(prompt, console_buffer, 0);
+}
+
+
+int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
+{
+ char *p = buffer;
+#ifdef CONFIG_CMDLINE_EDITING
+ unsigned int len = CONFIG_SYS_CBSIZE;
+ int rc;
+ static int initted;
+
+ /*
+ * History uses a global array which is not
+ * writable until after relocation to RAM.
+ * Revert to non-history version if still
+ * running from flash.
+ */
+ if (gd->flags & GD_FLG_RELOC) {
+ if (!initted) {
+ hist_init();
+ initted = 1;
+ }
+
+ if (prompt)
+ puts(prompt);
+
+ rc = cread_line(prompt, p, &len, timeout);
+ return rc < 0 ? rc : len;
+
+ } else {
+#endif /* CONFIG_CMDLINE_EDITING */
+ char *p_buf = p;
+ 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 */
+ WATCHDOG_RESET();
+ }
+#endif
+ WATCHDOG_RESET(); /* Trigger watchdog, if needed */
+
+#ifdef CONFIG_SHOW_ACTIVITY
+ while (!tstc()) {
+ show_activity(0);
+ WATCHDOG_RESET();
+ }
+#endif
+ c = getc();
+
+ /*
+ * Special character handling
+ */
+ switch (c) {
+ case '\r': /* Enter */
+ case '\n':
+ *p = '\0';
+ puts("\r\n");
+ return p - p_buf;
+
+ case '\0': /* nul */
+ continue;
+
+ case 0x03: /* ^C - break */
+ p_buf[0] = '\0'; /* discard input */
+ return -1;
+
+ case 0x15: /* ^U - erase line */
+ while (col > plen) {
+ puts(erase_seq);
+ --col;
+ }
+ p = p_buf;
+ n = 0;
+ continue;
+
+ case 0x17: /* ^W - erase word */
+ p = delete_char(p_buf, p, &col, &n, plen);
+ while ((n > 0) && (*p != ' '))
+ p = delete_char(p_buf, p, &col, &n, plen);
+ continue;
+
+ case 0x08: /* ^H - backspace */
+ case 0x7F: /* DEL - backspace */
+ p = delete_char(p_buf, p, &col, &n, plen);
+ continue;
+
+ default:
+ /*
+ * Must be a normal character then
+ */
+ if (n < CONFIG_SYS_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 = p_buf + n; /* reset */
+ continue;
+ }
+#endif
+ puts(tab_seq + (col & 07));
+ col += 8 - (col & 07);
+ } else {
+ char buf[2];
+
+ /*
+ * Echo input using puts() to force an
+ * LCD flush if we are using an LCD
+ */
+ ++col;
+ buf[0] = c;
+ buf[1] = '\0';
+ puts(buf);
+ }
+ *p++ = c;
+ ++n;
+ } else { /* Buffer full */
+ putc('\a');
+ }
+ }
+ }
+#ifdef CONFIG_CMDLINE_EDITING
+ }
+#endif
+}
+
+#ifdef CONFIG_BOOT_RETRY_TIME
+/***************************************************************************
+ * initialize command line timeout
+ */
+void init_cmd_timeout(void)
+{
+ char *s = getenv("bootretry");
+
+ if (s != NULL)
+ retry_time = (int)simple_strtol(s, NULL, 10);
+ else
+ retry_time = CONFIG_BOOT_RETRY_TIME;
+
+ if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN)
+ retry_time = CONFIG_BOOT_RETRY_MIN;
+}
+
+/***************************************************************************
+ * reset command line timeout to retry_time seconds
+ */
+void reset_cmd_timeout(void)
+{
+ endtime = endtick(retry_time);
+}
+
+void bootretry_dont_retry(void)
+{
+ retry_time = -1;
+}
+
+#endif
diff --git a/common/cli_simple.c b/common/cli_simple.c
new file mode 100644
index 0000000..0610615
--- /dev/null
+++ b/common/cli_simple.c
@@ -0,0 +1,338 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * Add to readline cmdline-editing by
+ * (C) Copyright 2005
+ * JinHua Luo, GuangDong Linux Center, <luo.jinhua at gd-linux.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <cli.h>
+#include <linux/ctype.h>
+
+#define DEBUG_PARSER 0 /* set to 1 to debug */
+
+#define debug_parser(fmt, args...) \
+ debug_cond(DEBUG_PARSER, fmt, ##args)
+
+
+int parse_line(char *line, char *argv[])
+{
+ int nargs = 0;
+
+ debug_parser("%s: \"%s\"\n", __func__, line);
+ while (nargs < CONFIG_SYS_MAXARGS) {
+ /* skip any white space */
+ while (isblank(*line))
+ ++line;
+
+ if (*line == '\0') { /* end of line, no more args */
+ argv[nargs] = NULL;
+ debug_parser("%s: nargs=%d\n", __func__, nargs);
+ return nargs;
+ }
+
+ argv[nargs++] = line; /* begin of argument string */
+
+ /* find end of string */
+ while (*line && !isblank(*line))
+ ++line;
+
+ if (*line == '\0') { /* end of line, no more args */
+ argv[nargs] = NULL;
+ debug_parser("parse_line: nargs=%d\n", nargs);
+ return nargs;
+ }
+
+ *line++ = '\0'; /* terminate current arg */
+ }
+
+ printf("** Too many args (max. %d) **\n", CONFIG_SYS_MAXARGS);
+
+ debug_parser("%s: nargs=%d\n", __func__, nargs);
+ 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_SYS_CBSIZE;
+ int state = 0; /* 0 = waiting for '$' */
+
+ /* 1 = waiting for '(' or '{' */
+ /* 2 = waiting for ')' or '}' */
+ /* 3 = waiting for ''' */
+ char *output_start = output;
+
+ debug_parser("[PROCESS_MACROS] INPUT len %zd: \"%s\"\n", strlen(input),
+ input);
+
+ 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_SYS_CBSIZE], *envval;
+ /* Varname # of chars */
+ int envcnt = input - varname_start - 1;
+
+ /* 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;
+ else
+ *(output - 1) = 0;
+
+ debug_parser("[PROCESS_MACROS] OUTPUT len %zd: \"%s\"\n",
+ strlen(output_start), output_start);
+}
+
+ /*
+ * 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 cli_simple_run_command(const char *cmd, int flag)
+{
+ char cmdbuf[CONFIG_SYS_CBSIZE]; /* working copy of cmd */
+ char *token; /* start of token in cmdbuf */
+ char *sep; /* end of token (separator) in cmdbuf */
+ char finaltoken[CONFIG_SYS_CBSIZE];
+ char *str = cmdbuf;
+ char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */
+ int argc, inquotes;
+ int repeatable = 1;
+ int rc = 0;
+
+ debug_parser("[RUN_COMMAND] cmd[%p]=\"", cmd);
+ if (DEBUG_PARSER) {
+ /* use puts - string may be loooong */
+ puts(cmd ? cmd : "NULL");
+ puts("\"\n");
+ }
+ clear_ctrlc(); /* forget any previous Control C */
+
+ if (!cmd || !*cmd)
+ return -1; /* empty command */
+
+ if (strlen(cmd) >= CONFIG_SYS_CBSIZE) {
+ puts("## Command too long!\n");
+ return -1;
+ }
+
+ strcpy(cmdbuf, cmd);
+
+ /* Process separators and check for invalid
+ * repeatable commands
+ */
+
+ debug_parser("[PROCESS_SEPARATORS] %s\n", cmd);
+ 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 */
+ }
+ debug_parser("token: \"%s\"\n", token);
+
+ /* find macros in this token and replace them */
+ process_macros(token, finaltoken);
+
+ /* Extract arguments */
+ argc = parse_line(finaltoken, argv);
+ if (argc == 0) {
+ rc = -1; /* no command at all */
+ continue;
+ }
+
+ if (cmd_process(flag, argc, argv, &repeatable, NULL))
+ rc = -1;
+
+ /* Did the user stop this? */
+ if (had_ctrlc())
+ return -1; /* if stopped then not repeatable */
+ }
+
+ return rc ? rc : repeatable;
+}
+
+void cli_loop(void)
+{
+ static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, };
+
+ int len;
+ int flag;
+ int rc = 1;
+
+ for (;;) {
+#ifdef CONFIG_BOOT_RETRY_TIME
+ if (rc >= 0) {
+ /* Saw enough of a valid command to
+ * restart the timeout.
+ */
+ reset_cmd_timeout();
+ }
+#endif
+ len = readline(CONFIG_SYS_PROMPT);
+
+ flag = 0; /* assume no special flags for now */
+ if (len > 0)
+ strcpy(lastcommand, console_buffer);
+ else if (len == 0)
+ flag |= CMD_FLAG_REPEAT;
+#ifdef CONFIG_BOOT_RETRY_TIME
+ else if (len == -2) {
+ /* -2 means timed out, retry autoboot
+ */
+ puts("\nTimed out waiting for command\n");
+# ifdef CONFIG_RESET_TO_RETRY
+ /* Reinit board to run initialization code again */
+ do_reset(NULL, 0, 0, NULL);
+# else
+ return; /* retry autoboot */
+# endif
+ }
+#endif
+
+ if (len == -1)
+ puts("<INTERRUPT>\n");
+ else
+ rc = run_command(lastcommand, flag);
+
+ if (rc <= 0) {
+ /* invalid command or not repeatable, forget it */
+ lastcommand[0] = 0;
+ }
+ }
+}
+
+int cli_simple_run_command_list(char *cmd, int flag)
+{
+ char *line, *next;
+ int rcode = 0;
+
+ /*
+ * Break into individual lines, and execute each line; terminate on
+ * error.
+ */
+ next = cmd;
+ line = cmd;
+ while (*next) {
+ if (*next == '\n') {
+ *next = '\0';
+ /* run only non-empty commands */
+ if (*line) {
+ debug("** exec: \"%s\"\n", line);
+ if (cli_simple_run_command(line, 0) < 0) {
+ rcode = 1;
+ break;
+ }
+ }
+ line = next + 1;
+ }
+ ++next;
+ }
+ if (rcode == 0 && *line)
+ rcode = (cli_simple_run_command(line, 0) >= 0);
+
+ return rcode;
+}
diff --git a/common/main.c b/common/main.c
index 815759a..9470e47 100644
--- a/common/main.c
+++ b/common/main.c
@@ -2,10 +2,6 @@
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd at denx.de.
*
- * Add to readline cmdline-editing by
- * (C) Copyright 2005
- * JinHua Luo, GuangDong Linux Center, <luo.jinhua at gd-linux.com>
- *
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -20,8 +16,6 @@
#include <menu.h>
#include <post.h>
#include <version.h>
-#include <watchdog.h>
-#include <linux/ctype.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -33,34 +27,12 @@ void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progre
#define MAX_DELAY_STOP_STR 32
-#define DEBUG_PARSER 0 /* set to 1 to debug */
-
-#define debug_parser(fmt, args...) \
- debug_cond(DEBUG_PARSER, fmt, ##args)
-
#ifndef DEBUG_BOOTKEYS
#define DEBUG_BOOTKEYS 0
#endif
#define debug_bootkeys(fmt, args...) \
debug_cond(DEBUG_BOOTKEYS, fmt, ##args)
-char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */
-
-static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen);
-static const char erase_seq[] = "\b \b"; /* erase sequence */
-static const char tab_seq[] = " "; /* used to expand TABs */
-
-#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 */
-#endif
-
-#define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk())
-
-#ifndef CONFIG_BOOT_RETRY_MIN
-#define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME
-#endif
-
#ifdef CONFIG_MODEM_SUPPORT
int do_mdm_init = 0;
extern void mdm_init(void); /* defined in board.c */
@@ -162,7 +134,7 @@ static int abortboot_keyed(int bootdelay)
# ifdef CONFIG_BOOT_RETRY_TIME
/* don't retry auto boot */
if (! delaykey[i].retry)
- retry_time = -1;
+ bootretry_dont_retry();
# endif
abort = 1;
}
@@ -416,12 +388,6 @@ static void process_boot_delay(void)
void main_loop(void)
{
-#ifndef CONFIG_SYS_HUSH_PARSER
- static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, };
- int len;
- int rc = 1;
- int flag;
-#endif
#ifdef CONFIG_PREBOOT
char *p;
#endif
@@ -483,943 +449,13 @@ void main_loop(void)
/* This point is never reached */
for (;;);
#else
- for (;;) {
-#ifdef CONFIG_BOOT_RETRY_TIME
- if (rc >= 0) {
- /* Saw enough of a valid command to
- * restart the timeout.
- */
- reset_cmd_timeout();
- }
-#endif
- len = readline (CONFIG_SYS_PROMPT);
-
- flag = 0; /* assume no special flags for now */
- if (len > 0)
- strcpy (lastcommand, console_buffer);
- else if (len == 0)
- flag |= CMD_FLAG_REPEAT;
-#ifdef CONFIG_BOOT_RETRY_TIME
- else if (len == -2) {
- /* -2 means timed out, retry autoboot
- */
- puts ("\nTimed out waiting for command\n");
-# ifdef CONFIG_RESET_TO_RETRY
- /* Reinit board to run initialization code again */
- do_reset (NULL, 0, 0, NULL);
-# else
- return; /* retry autoboot */
-# endif
- }
-#endif
-
- if (len == -1)
- puts ("<INTERRUPT>\n");
- else
- rc = run_command(lastcommand, flag);
-
- if (rc <= 0) {
- /* invalid command or not repeatable, forget it */
- lastcommand[0] = 0;
- }
- }
+ cli_loop();
#endif /*CONFIG_SYS_HUSH_PARSER*/
}
-#ifdef CONFIG_BOOT_RETRY_TIME
-/***************************************************************************
- * initialize command line timeout
- */
-void init_cmd_timeout(void)
-{
- char *s = getenv ("bootretry");
-
- if (s != NULL)
- retry_time = (int)simple_strtol(s, NULL, 10);
- else
- retry_time = CONFIG_BOOT_RETRY_TIME;
-
- if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN)
- retry_time = CONFIG_BOOT_RETRY_MIN;
-}
-
-/***************************************************************************
- * reset command line timeout to retry_time seconds
- */
-void reset_cmd_timeout(void)
-{
- endtime = endtick(retry_time);
-}
-#endif
-
-#ifdef CONFIG_CMDLINE_EDITING
-
-/*
- * cmdline-editing related codes from vivi.
- * Author: Janghoon Lyu <nandy at mizi.com>
- */
-
-#define putnstr(str,n) do { \
- printf ("%.*s", (int)n, str); \
- } while (0)
-
-#define CTL_CH(c) ((c) - 'a' + 1)
-#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 CONFIG_SYS_CBSIZE
-
-static int hist_max;
-static int hist_add_idx;
-static int hist_cur = -1;
-static unsigned hist_num;
-
-static char *hist_list[HIST_MAX];
-static char hist_lines[HIST_MAX][HIST_SIZE + 1]; /* Save room for NULL */
-
-#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) { \
- printf("%*s", (int)(eol_num - num), ""); \
- do { \
- getcmd_putch(CTL_BACKSPACE); \
- } while (--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(const char *const prompt, char *buf, unsigned int *len,
- int timeout)
-{
- unsigned long num = 0;
- unsigned long eol_num = 0;
- unsigned long wlen;
- char ichar;
- int insert = 1;
- int esc_len = 0;
- char esc_save[8];
- int init_len = strlen(buf);
- int first = 1;
-
- if (init_len)
- cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len);
-
- while (1) {
-#ifdef CONFIG_BOOT_RETRY_TIME
- while (!tstc()) { /* while no incoming data */
- if (retry_time >= 0 && get_ticks() > endtime)
- return (-2); /* timed out */
- WATCHDOG_RESET();
- }
-#endif
- if (first && timeout) {
- uint64_t etime = endtick(timeout);
-
- while (!tstc()) { /* while no incoming data */
- if (get_ticks() >= etime)
- return -2; /* timed out */
- WATCHDOG_RESET();
- }
- first = 0;
- }
-
- 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'):
- case CTL_CH('u'):
- 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;
- }
-#ifdef CONFIG_AUTO_COMPLETE
- case '\t': {
- int num2, col;
-
- /* do not autocomplete when in the middle */
- if (num < eol_num) {
- getcmd_cbeep();
- break;
- }
-
- buf[num] = '\0';
- col = strlen(prompt) + eol_num;
- num2 = num;
- if (cmd_auto_complete(prompt, buf, &num2, &col)) {
- col = num2 - num;
- num += col;
- eol_num += col;
- }
- break;
- }
-#endif
- 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 0;
-}
-
-#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)
-{
- /*
- * If console_buffer isn't 0-length the user will be prompted to modify
- * it instead of entering it from scratch as desired.
- */
- console_buffer[0] = '\0';
-
- return readline_into_buffer(prompt, console_buffer, 0);
-}
-
-
-int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
-{
- char *p = buffer;
-#ifdef CONFIG_CMDLINE_EDITING
- unsigned int len = CONFIG_SYS_CBSIZE;
- int rc;
- static int initted = 0;
-
- /*
- * History uses a global array which is not
- * writable until after relocation to RAM.
- * Revert to non-history version if still
- * running from flash.
- */
- if (gd->flags & GD_FLG_RELOC) {
- if (!initted) {
- hist_init();
- initted = 1;
- }
-
- if (prompt)
- puts (prompt);
-
- rc = cread_line(prompt, p, &len, timeout);
- return rc < 0 ? rc : len;
-
- } else {
-#endif /* CONFIG_CMDLINE_EDITING */
- char * p_buf = p;
- 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 */
- WATCHDOG_RESET();
- }
-#endif
- WATCHDOG_RESET(); /* Trigger watchdog, if needed */
-
-#ifdef CONFIG_SHOW_ACTIVITY
- while (!tstc()) {
- show_activity(0);
- WATCHDOG_RESET();
- }
-#endif
- c = getc();
-
- /*
- * Special character handling
- */
- switch (c) {
- case '\r': /* Enter */
- case '\n':
- *p = '\0';
- puts ("\r\n");
- return p - p_buf;
-
- case '\0': /* nul */
- continue;
-
- case 0x03: /* ^C - break */
- p_buf[0] = '\0'; /* discard input */
- return -1;
-
- case 0x15: /* ^U - erase line */
- while (col > plen) {
- puts (erase_seq);
- --col;
- }
- p = p_buf;
- n = 0;
- continue;
-
- case 0x17: /* ^W - erase word */
- p=delete_char(p_buf, p, &col, &n, plen);
- while ((n > 0) && (*p != ' ')) {
- p=delete_char(p_buf, p, &col, &n, plen);
- }
- continue;
-
- case 0x08: /* ^H - backspace */
- case 0x7F: /* DEL - backspace */
- p=delete_char(p_buf, p, &col, &n, plen);
- continue;
-
- default:
- /*
- * Must be a normal character then
- */
- if (n < CONFIG_SYS_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 = p_buf + n; /* reset */
- continue;
- }
-#endif
- puts (tab_seq+(col&07));
- col += 8 - (col&07);
- } else {
- char buf[2];
-
- /*
- * Echo input using puts() to force an
- * LCD flush if we are using an LCD
- */
- ++col;
- buf[0] = c;
- buf[1] = '\0';
- puts(buf);
- }
- *p++ = c;
- ++n;
- } else { /* Buffer full */
- putc ('\a');
- }
- }
- }
-#ifdef CONFIG_CMDLINE_EDITING
- }
-#endif
-}
-
-/****************************************************************************/
-
-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);
-}
-
-/****************************************************************************/
-
-int parse_line (char *line, char *argv[])
-{
- int nargs = 0;
-
- debug_parser("parse_line: \"%s\"\n", line);
- while (nargs < CONFIG_SYS_MAXARGS) {
-
- /* skip any white space */
- while (isblank(*line))
- ++line;
-
- if (*line == '\0') { /* end of line, no more args */
- argv[nargs] = NULL;
- debug_parser("parse_line: nargs=%d\n", nargs);
- return nargs;
- }
-
- argv[nargs++] = line; /* begin of argument string */
-
- /* find end of string */
- while (*line && !isblank(*line))
- ++line;
-
- if (*line == '\0') { /* end of line, no more args */
- argv[nargs] = NULL;
- debug_parser("parse_line: nargs=%d\n", nargs);
- return nargs;
- }
-
- *line++ = '\0'; /* terminate current arg */
- }
-
- printf ("** Too many args (max. %d) **\n", CONFIG_SYS_MAXARGS);
-
- debug_parser("parse_line: nargs=%d\n", nargs);
- return (nargs);
-}
-
-/****************************************************************************/
-
-#ifndef CONFIG_SYS_HUSH_PARSER
-static void process_macros (const char *input, char *output)
-{
- char c, prev;
- const char *varname_start = NULL;
- int inputcnt = strlen (input);
- int outputcnt = CONFIG_SYS_CBSIZE;
- int state = 0; /* 0 = waiting for '$' */
-
- /* 1 = waiting for '(' or '{' */
- /* 2 = waiting for ')' or '}' */
- /* 3 = waiting for ''' */
- char *output_start = output;
-
- debug_parser("[PROCESS_MACROS] INPUT len %zd: \"%s\"\n", strlen(input),
- input);
-
- 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_SYS_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;
- else
- *(output - 1) = 0;
-
- debug_parser("[PROCESS_MACROS] OUTPUT len %zd: \"%s\"\n",
- strlen(output_start), output_start);
-}
-
-/****************************************************************************
- * 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_SYS_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).
- */
-static int builtin_run_command(const char *cmd, int flag)
-{
- char cmdbuf[CONFIG_SYS_CBSIZE]; /* working copy of cmd */
- char *token; /* start of token in cmdbuf */
- char *sep; /* end of token (separator) in cmdbuf */
- char finaltoken[CONFIG_SYS_CBSIZE];
- char *str = cmdbuf;
- char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */
- int argc, inquotes;
- int repeatable = 1;
- int rc = 0;
-
- debug_parser("[RUN_COMMAND] cmd[%p]=\"", cmd);
- if (DEBUG_PARSER) {
- /* use puts - string may be loooong */
- puts(cmd ? cmd : "NULL");
- puts("\"\n");
- }
- clear_ctrlc(); /* forget any previous Control C */
-
- if (!cmd || !*cmd) {
- return -1; /* empty command */
- }
-
- if (strlen(cmd) >= CONFIG_SYS_CBSIZE) {
- puts ("## Command too long!\n");
- return -1;
- }
-
- strcpy (cmdbuf, cmd);
-
- /* Process separators and check for invalid
- * repeatable commands
- */
-
- debug_parser("[PROCESS_SEPARATORS] %s\n", cmd);
- 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 */
- debug_parser("token: \"%s\"\n", token);
-
- /* 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;
- }
-
- if (cmd_process(flag, argc, argv, &repeatable, NULL))
- rc = -1;
-
- /* Did the user stop this? */
- if (had_ctrlc ())
- return -1; /* if stopped then not repeatable */
- }
-
- return rc ? rc : repeatable;
-}
-#endif
-
-/*
* Run a command using the selected parser.
*
* @param cmd Command to run
@@ -1430,10 +466,10 @@ int run_command(const char *cmd, int flag)
{
#ifndef CONFIG_SYS_HUSH_PARSER
/*
- * builtin_run_command can return 0 or 1 for success, so clean up
+ * cli_run_command can return 0 or 1 for success, so clean up
* its result.
*/
- if (builtin_run_command(cmd, flag) == -1)
+ if (cli_simple_run_command(cmd, flag) == -1)
return 1;
return 0;
@@ -1443,49 +479,6 @@ int run_command(const char *cmd, int flag)
#endif
}
-#ifndef CONFIG_SYS_HUSH_PARSER
-/**
- * Execute a list of command separated by ; or \n using the built-in parser.
- *
- * This function cannot take a const char * for the command, since if it
- * finds newlines in the string, it replaces them with \0.
- *
- * @param cmd String containing list of commands
- * @param flag Execution flags (CMD_FLAG_...)
- * @return 0 on success, or != 0 on error.
- */
-static int builtin_run_command_list(char *cmd, int flag)
-{
- char *line, *next;
- int rcode = 0;
-
- /*
- * Break into individual lines, and execute each line; terminate on
- * error.
- */
- line = next = cmd;
- while (*next) {
- if (*next == '\n') {
- *next = '\0';
- /* run only non-empty commands */
- if (*line) {
- debug("** exec: \"%s\"\n", line);
- if (builtin_run_command(line, 0) < 0) {
- rcode = 1;
- break;
- }
- }
- line = next + 1;
- }
- ++next;
- }
- if (rcode == 0 && *line)
- rcode = (builtin_run_command(line, 0) >= 0);
-
- return rcode;
-}
-#endif
-
int run_command_list(const char *cmd, int len, int flag)
{
int need_buff = 1;
@@ -1519,7 +512,7 @@ int run_command_list(const char *cmd, int len, int flag)
* doing a malloc() which is actually required only in a case that
* is pretty rare.
*/
- rcode = builtin_run_command_list(buff, flag);
+ rcode = cli_simple_run_command_list(buff, flag);
if (need_buff)
free(buff);
#endif
diff --git a/include/cli.h b/include/cli.h
index 0075bd4..b04539f 100644
--- a/include/cli.h
+++ b/include/cli.h
@@ -99,4 +99,9 @@ int readline_into_buffer(const char *const prompt, char *buffer, int timeout);
*/
int parse_line(char *line, char *argv[]);
+/** bootretry_dont_retry() - Indicate that we should not retry the boot */
+void bootretry_dont_retry(void);
+
+#define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk())
+
#endif
--
1.9.1.423.g4596e3a
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