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last_patch_68 from Vladimir N. Oleynik

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This commit is contained in:
Glenn L McGrath 2002-11-27 09:29:49 +00:00
parent ec87d37305
commit 062c74f710
4 changed files with 66 additions and 105 deletions
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5
README
View File

@ -18,9 +18,8 @@ it also makes an excellent environment for any small or embedded system.
As of version 0.20 there is now a version number. : ) Also as of version 0.20,
BusyBox is now modularized to easily allow you to build only the components you
need, thereby reducing binary size. To turn off unwanted BusyBox components,
simply edit the file "Config.h" and comment out the components you do not need
using C++ style (//) comments.
need, thereby reducing binary size. Run 'make config' or 'make menuconfig'
for select the functionality that you wish to enable.
After the build is complete, a busybox.links file is generated. This is
used by 'make install' to create symlinks to the busybox binary for all

2
include/usage.h
View File

@ -530,7 +530,7 @@
"-u Give Start and End in sector (instead of cylinder) units\n" \
"-s PARTITION Give partition size(s) in blocks\n" \
"-b 2048: (for certain MO disks) use 2048-byte sectors\n" \
"-v Give fdisk version\n"
"-v Give fdisk version"
#ifdef CONFIG_FEATURE_FIND_TYPE
#define USAGE_FIND_TYPE(a) a

162
shell/cmdedit.c
View File

@ -89,22 +89,17 @@
#endif /* advanced FEATURES */
struct history {
char *s;
struct history *p;
struct history *n;
};
/* Maximum length of the linked list for the command line history */
static const int MAX_HISTORY = 15;
/* First element in command line list */
static struct history *his_front = NULL;
/* Last element in command line list */
static struct history *his_end = NULL;
#define MAX_HISTORY 15
#if MAX_HISTORY < 1
#warning cmdedit: You set MAX_HISTORY < 1. The history algorithm switched off.
#else
static char *history[MAX_HISTORY+1]; /* history + current */
/* saved history lines */
static int n_history;
/* current pointer to history line */
static int cur_history;
#endif
#include <termios.h>
#define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
@ -116,7 +111,6 @@ static struct termios initial_settings, new_settings;
static
volatile int cmdedit_termw = 80; /* actual terminal width */
static int history_counter = 0; /* Number of commands in history list */
static
volatile int handlers_sets = 0; /* Set next bites: */
@ -148,7 +142,7 @@ static int my_euid;
#endif
#ifdef CONFIG_FEATURE_SH_FANCY_PROMPT
static char *hostname_buf = "";
static char *hostname_buf;
static int num_ok_lines = 1;
#endif
@ -207,19 +201,6 @@ static void cmdedit_reset_term(void)
handlers_sets &= ~SET_WCHG_HANDLERS;
}
fflush(stdout);
#if 0
//#ifdef CONFIG_FEATURE_CLEAN_UP
if (his_front) {
struct history *n;
while (his_front != his_end) {
n = his_front->n;
free(his_front->s);
free(his_front);
his_front = n;
}
}
#endif
}
@ -368,7 +349,7 @@ static void parse_prompt(const char *prmt_ptr)
#endif
case 'h':
pbuf = hostname_buf;
if (*pbuf == 0) {
if (pbuf == 0) {
pbuf = xcalloc(256, 1);
if (gethostname(pbuf, 255) < 0) {
strcpy(pbuf, "?");
@ -1122,18 +1103,29 @@ static void input_tab(int *lastWasTab)
}
#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
static void get_previous_history(struct history **hp, struct history *p)
#if MAX_HISTORY >= 1
static void get_previous_history(void)
{
if ((*hp)->s)
free((*hp)->s);
(*hp)->s = xstrdup(command_ps);
*hp = p;
if(command_ps[0] != 0 || history[cur_history] == 0) {
free(history[cur_history]);
history[cur_history] = xstrdup(command_ps);
}
cur_history--;
}
static inline void get_next_history(struct history **hp)
static int get_next_history(void)
{
get_previous_history(hp, (*hp)->n);
int ch = cur_history;
if (ch < n_history) {
get_previous_history(); /* save the current history line */
return (cur_history = ch+1);
} else {
beep();
return 0;
}
}
#endif
enum {
ESC = 27,
@ -1165,7 +1157,6 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ])
int break_out = 0;
int lastWasTab = FALSE;
unsigned char c = 0;
struct history *hp = his_end;
/* prepare before init handlers */
cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
@ -1271,31 +1262,26 @@ prepare_to_die:
printf("\033[J");
break;
case 12:
{
/* Control-l -- clear screen */
int old_cursor = cursor;
printf("\033[H");
redraw(0, len-old_cursor);
}
redraw(0, len-cursor);
break;
#if MAX_HISTORY >= 1
case 14:
/* Control-n -- Get next command in history */
if (hp && hp->n && hp->n->s) {
get_next_history(&hp);
if (get_next_history())
goto rewrite_line;
} else {
beep();
}
break;
case 16:
/* Control-p -- Get previous command from history */
if (hp && hp->p) {
get_previous_history(&hp, hp->p);
if (cur_history > 0) {
get_previous_history();
goto rewrite_line;
} else {
beep();
}
break;
#endif
case 21:
/* Control-U -- Clear line before cursor */
if (cursor) {
@ -1319,10 +1305,11 @@ prepare_to_die:
input_tab(&lastWasTab);
break;
#endif
#if MAX_HISTORY >= 1
case 'A':
/* Up Arrow -- Get previous command from history */
if (hp && hp->p) {
get_previous_history(&hp, hp->p);
if (cur_history > 0) {
get_previous_history();
goto rewrite_line;
} else {
beep();
@ -1330,21 +1317,16 @@ prepare_to_die:
break;
case 'B':
/* Down Arrow -- Get next command in history */
if (hp && hp->n && hp->n->s) {
get_next_history(&hp);
goto rewrite_line;
} else {
beep();
}
if (!get_next_history())
break;
/* Rewrite the line with the selected history item */
rewrite_line:
rewrite_line:
/* change command */
len = strlen(strcpy(command, hp->s));
len = strlen(strcpy(command, history[cur_history]));
/* redraw and go to end line */
redraw(cmdedit_y, 0);
break;
#endif
case 'C':
/* Right Arrow -- Move forward one character */
input_forward();
@ -1428,53 +1410,33 @@ prepare_to_die:
setTermSettings(0, (void *) &initial_settings);
handlers_sets &= ~SET_RESET_TERM;
#if MAX_HISTORY >= 1
/* Handle command history log */
/* cleanup may be saved current command line */
free(history[MAX_HISTORY]);
history[MAX_HISTORY] = 0;
if (len) { /* no put empty line */
struct history *h = his_end;
char *ss;
ss = xstrdup(command); /* duplicate */
if (h == 0) {
/* No previous history -- this memory is never freed */
h = his_front = xmalloc(sizeof(struct history));
h->n = xmalloc(sizeof(struct history));
h->p = NULL;
h->s = ss;
h->n->p = h;
h->n->n = NULL;
h->n->s = NULL;
his_end = h->n;
history_counter++;
} else {
/* Add a new history command -- this memory is never freed */
h->n = xmalloc(sizeof(struct history));
h->n->p = h;
h->n->n = NULL;
h->n->s = NULL;
h->s = ss;
his_end = h->n;
int i = n_history;
/* After max history, remove the oldest command */
if (history_counter >= MAX_HISTORY) {
struct history *p = his_front->n;
p->p = NULL;
free(his_front->s);
free(his_front);
his_front = p;
} else {
history_counter++;
}
if (i >= MAX_HISTORY) {
free(history[0]);
for(i = 0; i < (MAX_HISTORY-1); i++)
history[i] = history[i+1];
}
history[i++] = xstrdup(command);
cur_history = i;
n_history = i;
#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
num_ok_lines++;
#endif
}
#else /* MAX_HISTORY < 1 */
#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
if (len) { /* no put empty line */
num_ok_lines++;
}
#endif
#endif /* MAX_HISTORY >= 1 */
if(break_out>0) {
command[len++] = '\n'; /* set '\n' */
command[len] = 0;

2
util-linux/config.in
View File

@ -20,7 +20,7 @@ if [ "$CONFIG_FDISK" = "y" ]; then
bool ' Support SGI disklabels' CONFIG_FEATURE_SGI_LABEL
bool ' Support SUN disklabels' CONFIG_FEATURE_SUN_LABEL
bool ' Support BSD disklabels' CONFIG_FEATURE_OSF_LABEL
bool ' Support expext mode' CONFIG_FEATURE_FDISK_ADVANCED
bool ' Support expert mode' CONFIG_FEATURE_FDISK_ADVANCED
fi
bool 'freeramdisk' CONFIG_FREERAMDISK
bool 'fsck_minix' CONFIG_FSCK_MINIX