ash,hush: history builtin

function                                             old     new   delta
show_history                                           -      39     +39
builtin_history                                        -      16     +16
historycmd                                             -      13     +13
bltins1                                              312     324     +12
builtintab                                           336     344      +8
popstring                                            134     140      +6
hush_main                                           1048    1046      -2
ash_main                                            1398    1396      -2
size_from_HISTFILESIZE                                44      40      -4
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 3/3 up/down: 94/-8)              Total: 86 bytes

Signed-off-by: Flemming Madsen <busybox@themadsens.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 14 insertions, 2 deletions

diff --git a/libbb/lineedit.c b/libbb/lineedit.c
index 93ab86426..1313dd5d9 100644
--- a/libbb/lineedit.c
+++ b/libbb/lineedit.c
@@ -1254,7 +1254,7 @@ line_input_t* FAST_FUNC new_line_input_t(int flags)
 
 #if MAX_HISTORY > 0
 
-unsigned size_from_HISTFILESIZE(const char *hp)
+unsigned FAST_FUNC size_from_HISTFILESIZE(const char *hp)
 {
         int size = MAX_HISTORY;
         if (hp) {
@@ -1309,6 +1309,17 @@ static int get_next_history(void)
         return 0;
 }
 
+/* Lists command history. Used by shell 'history' builtins */
+void FAST_FUNC show_history(const line_input_t *st)
+{
+        int i;
+
+        if (!st)
+                return;
+        for (i = 0; i < st->cnt_history; i++)
+                printf("%4d %s\n", i, st->history[i]);
+}
+
 # if ENABLE_FEATURE_EDITING_SAVEHISTORY
 /* We try to ensure that concurrent additions to the history
  * do not overwrite each other.
@@ -2749,8 +2760,9 @@ int FAST_FUNC read_line_input(line_input_t *st, const char *prompt, char *comman
         free(command_ps);
 #endif
 
-        if (command_len > 0)
+        if (command_len > 0) {
                 remember_in_history(command);
+        }
 
         if (break_out > 0) {
                 command[command_len++] = '\n';