upgrade busybox to v1.11.2 and add current upstream fixes

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12648 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 145 insertions, 0 deletions

diff --git a/package/busybox/patches/903-lineedit.patch b/package/busybox/patches/903-lineedit.patch
new file mode 100644
index 000000000..aa6e13b1e
--- /dev/null
+++ b/package/busybox/patches/903-lineedit.patch
@@ -0,0 +1,145 @@
+--- a/libbb/lineedit.c
++++ b/libbb/lineedit.c
+@@ -953,24 +953,33 @@
+ 
+ #if MAX_HISTORY > 0
+ 
++static void save_command_ps_at_cur_history(void)
++{
++	if (command_ps[0] != '\0') {
++		int cur = state->cur_history;
++		free(state->history[cur]);
++		state->history[cur] = xstrdup(command_ps);
++	}
++}
++
+ /* state->flags is already checked to be nonzero */
+-static void get_previous_history(void)
++static int get_previous_history(void)
+ {
+-	if (command_ps[0] != '\0' || state->history[state->cur_history] == NULL) {
+-		free(state->history[state->cur_history]);
+-		state->history[state->cur_history] = xstrdup(command_ps);
++	if ((state->flags & DO_HISTORY) && state->cur_history) {
++		save_command_ps_at_cur_history();
++		state->cur_history--;
++		return 1;
+ 	}
+-	state->cur_history--;
++	beep();
++	return 0;
+ }
+ 
+ static int get_next_history(void)
+ {
+ 	if (state->flags & DO_HISTORY) {
+-		int ch = state->cur_history;
+-		if (ch < state->cnt_history) {
+-			get_previous_history(); /* save the current history line */
+-			state->cur_history = ch + 1;
+-			return state->cur_history;
++		if (state->cur_history < state->cnt_history) {
++			save_command_ps_at_cur_history(); /* save the current history line */
++			return ++state->cur_history;
+ 		}
+ 	}
+ 	beep();
+@@ -992,6 +1001,7 @@
+ 		for (hi = state->cnt_history; hi > 0;) {
+ 			hi--;
+ 			free(state->history[hi]);
++			state->history[hi] = NULL;
+ 		}
+ 
+ 		for (hi = 0; hi < MAX_HISTORY;) {
+@@ -1003,7 +1013,7 @@
+ 			l = strlen(hl);
+ 			if (l >= MAX_LINELEN)
+ 				hl[MAX_LINELEN-1] = '\0';
+-			if (l == 0 || hl[0] == ' ') {
++			if (l == 0) {
+ 				free(hl);
+ 				continue;
+ 			}
+@@ -1040,19 +1050,27 @@
+ 
+ 	if (!(state->flags & DO_HISTORY))
+ 		return;
+-
++	if (str[0] == '\0')
++		return;
+ 	i = state->cnt_history;
+-	free(state->history[MAX_HISTORY]);
+-	state->history[MAX_HISTORY] = NULL;
+-	/* After max history, remove the oldest command */
++	/* Don't save dupes */
++	if (i && strcmp(state->history[i-1], str) == 0)
++		return;
++
++	free(state->history[MAX_HISTORY]); /* redundant, paranoia */
++	state->history[MAX_HISTORY] = NULL; /* redundant, paranoia */
++
++	/* If history[] is full, remove the oldest command */
++	/* we need to keep history[MAX_HISTORY] empty, hence >=, not > */
+ 	if (i >= MAX_HISTORY) {
+ 		free(state->history[0]);
+ 		for (i = 0; i < MAX_HISTORY-1; i++)
+ 			state->history[i] = state->history[i+1];
++		/* i == MAX_HISTORY-1 */
+ 	}
+-// Maybe "if (!i || strcmp(history[i-1], command) != 0) ..."
+-// (i.e. do not save dups?)
++	/* i <= MAX_HISTORY-1 */
+ 	state->history[i++] = xstrdup(str);
++	/* i <= MAX_HISTORY */
+ 	state->cur_history = i;
+ 	state->cnt_history = i;
+ #if ENABLE_FEATURE_EDITING_SAVEHISTORY
+@@ -1429,6 +1447,13 @@
+ 		}
+ 	}
+ #endif
++
++#if 0
++	for (ic = 0; ic <= MAX_HISTORY; ic++)
++		bb_error_msg("history[%d]:'%s'", ic, state->history[ic]);
++	bb_error_msg("cur_history:%d cnt_history:%d", state->cur_history, state->cnt_history);
++#endif
++
+ 	/* Print out the command prompt */
+ 	parse_and_put_prompt(prompt);
+ 
+@@ -1537,11 +1562,8 @@
+ 		vi_case(CTRL('P')|vbit:)
+ 		vi_case('k'|vbit:)
+ 			/* Control-p -- Get previous command from history */
+-			if ((state->flags & DO_HISTORY) && state->cur_history > 0) {
+-				get_previous_history();
++			if (get_previous_history())
+ 				goto rewrite_line;
+-			}
+-			beep();
+ 			break;
+ #endif
+ 
+@@ -1730,10 +1752,8 @@
+ #if MAX_HISTORY > 0
+ 			case 'A':
+ 				/* Up Arrow -- Get previous command from history */
+-				if ((state->flags & DO_HISTORY) && state->cur_history > 0) {
+-					get_previous_history();
++				if (get_previous_history())
+ 					goto rewrite_line;
+-				}
+ 				beep();
+ 				break;
+ 			case 'B':
+@@ -1743,7 +1763,7 @@
+  rewrite_line:
+ 				/* Rewrite the line with the selected history item */
+ 				/* change command */
+-				command_len = strlen(strcpy(command, state->history[state->cur_history]));
++				command_len = strlen(strcpy(command, state->history[state->cur_history] ? : ""));
+ 				/* redraw and go to eol (bol, in vi */
+ 				redraw(cmdedit_y, (state->flags & VI_MODE) ? 9999 : 0);
+ 				break;