* Termios command line History and Editting.
*
* Copyright (c) 1986-2001 may safely be consumed by a BSD or GPL license.
- * Written by: Vladimir Oleynik <vodz@usa.net>
+ * Written by: Vladimir Oleynik <dzo@simtreas.ru>
*
* Used ideas:
* Adam Rogoyski <rogoyski@cs.utexas.edu>
#include "busybox.h"
-#ifdef BB_LOCALE_SUPPORT
+#ifdef CONFIG_LOCALE_SUPPORT
#define Isprint(c) isprint((c))
#else
#define Isprint(c) ( (c) >= ' ' && (c) != ((unsigned char)'\233') )
#else
-#define BB_FEATURE_COMMAND_EDITING
-#define BB_FEATURE_COMMAND_TAB_COMPLETION
-#define BB_FEATURE_COMMAND_USERNAME_COMPLETION
-#define BB_FEATURE_NONPRINTABLE_INVERSE_PUT
-#define BB_FEATURE_CLEAN_UP
+#define CONFIG_FEATURE_COMMAND_EDITING
+#define CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+#define CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
+#define CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+#define CONFIG_FEATURE_CLEAN_UP
#define D(x) x
#endif /* TEST */
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
#include <dirent.h>
#include <sys/stat.h>
#endif
-#ifdef BB_FEATURE_COMMAND_EDITING
+#ifdef CONFIG_FEATURE_COMMAND_EDITING
-#ifndef BB_FEATURE_COMMAND_TAB_COMPLETION
-#undef BB_FEATURE_COMMAND_USERNAME_COMPLETION
+#ifndef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+#undef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
#endif
-#if defined(BB_FEATURE_COMMAND_USERNAME_COMPLETION) || defined(BB_FEATURE_SH_FANCY_PROMPT)
-#define BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#if defined(CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION) || defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
+#define CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
#endif
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
# ifndef TEST
-# include "pwd_grp/pwd.h"
+# include "pwd_.h"
# else
# include <pwd.h>
# endif /* TEST */
enum {
SET_ATEXIT = 1, /* when atexit() has been called
and get euid,uid,gid to fast compare */
- SET_TERM_HANDLERS = 2, /* set many terminates signal handlers */
- SET_WCHG_HANDLERS = 4, /* winchg signal handler */
- SET_RESET_TERM = 8, /* if the terminal needs to be reset upon exit */
+ SET_WCHG_HANDLERS = 2, /* winchg signal handler */
+ SET_RESET_TERM = 4, /* if the terminal needs to be reset upon exit */
};
static int len; /* --- "" - - "" - -"- --""-- --""--- */
static char *command_ps; /* --- "" - - "" - -"- --""-- --""--- */
static
-#ifndef BB_FEATURE_SH_FANCY_PROMPT
+#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT
const
#endif
char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
-/* Link into lash to reset context to 0 on ^C and such */
-extern unsigned int shell_context;
-
-
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
static char *user_buf = "";
static char *home_pwd_buf = "";
static int my_euid;
#endif
-#ifdef BB_FEATURE_SH_FANCY_PROMPT
+#ifdef CONFIG_FEATURE_SH_FANCY_PROMPT
static char *hostname_buf = "";
static int num_ok_lines = 1;
#endif
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
-#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifndef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
static int my_euid;
#endif
static int my_uid;
static int my_gid;
-#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
+/* It seems that libc5 doesn't know what a sighandler_t is... */
+#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
+typedef void (*sighandler_t) (int);
+#endif
static void cmdedit_setwidth(int w, int redraw_flg);
static void win_changed(int nsig)
{
struct winsize win = { 0, 0, 0, 0 };
- static __sighandler_t previous_SIGWINCH_handler; /* for reset */
+ static sighandler_t previous_SIGWINCH_handler; /* for reset */
/* emulate || signal call */
if (nsig == -SIGWINCH || nsig == SIGWINCH) {
handlers_sets &= ~SET_WCHG_HANDLERS;
}
fflush(stdout);
-#ifdef BB_FEATURE_CLEAN_UP
+#if 0
+//#ifdef CONFIG_FEATURE_CLEAN_UP
if (his_front) {
struct history *n;
if (c == 0)
c = ' '; /* destroy end char? */
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
if (!Isprint(c)) { /* Inverse put non-printable characters */
if (c >= 128)
c -= 128;
out1str(cmdedit_prompt);
cmdedit_x = cmdedit_prmt_len; /* count real x terminal position */
cursor = 0;
+ cmdedit_y = 0; /* new quasireal y */
}
-#ifndef BB_FEATURE_SH_FANCY_PROMPT
+#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT
static void parse_prompt(const char *prmt_ptr)
{
cmdedit_prompt = prmt_ptr;
break;
c = *prmt_ptr++;
switch (c) {
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
case 'u':
pbuf = user_buf;
break;
case '$':
c = my_euid == 0 ? '#' : '$';
break;
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
case 'w':
pbuf = pwd_buf;
l = strlen(home_pwd_buf);
{
if (y > 0) /* up to start y */
printf("\033[%dA", y);
- cmdedit_y = 0; /* new quasireal y */
putchar('\r');
put_prompt();
input_end(); /* rewrite */
}
-static void clean_up_and_die(int sig)
-{
- goto_new_line();
- if (sig != SIGINT)
- exit(EXIT_SUCCESS); /* cmdedit_reset_term() called in atexit */
- cmdedit_reset_term();
-}
-
static void cmdedit_setwidth(int w, int redraw_flg)
{
cmdedit_termw = cmdedit_prmt_len + 2;
}
}
-extern void cmdedit_init(void)
+static void cmdedit_init(void)
{
cmdedit_prmt_len = 0;
if ((handlers_sets & SET_WCHG_HANDLERS) == 0) {
}
if ((handlers_sets & SET_ATEXIT) == 0) {
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
struct passwd *entry;
my_euid = geteuid();
}
#endif
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
-#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifndef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
my_euid = geteuid();
#endif
my_uid = getuid();
my_gid = getgid();
-#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
handlers_sets |= SET_ATEXIT;
atexit(cmdedit_reset_term); /* be sure to do this only once */
}
-
- if ((handlers_sets & SET_TERM_HANDLERS) == 0) {
- signal(SIGKILL, clean_up_and_die);
- signal(SIGINT, clean_up_and_die);
- signal(SIGQUIT, clean_up_and_die);
- signal(SIGTERM, clean_up_and_die);
- handlers_sets |= SET_TERM_HANDLERS;
- }
}
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
static int is_execute(const struct stat *st)
{
return FALSE;
}
-#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
static char **username_tab_completion(char *ud, int *num_matches)
{
return (matches);
}
}
-#endif /* BB_FEATURE_COMMAND_USERNAME_COMPLETION */
+#endif /* CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION */
enum {
FIND_EXE_ONLY = 0,
strcpy(dirbuf, command);
/* set dir only */
dirbuf[(pfind - command) + 1] = 0;
-#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
if (dirbuf[0] == '~') /* ~/... or ~user/... */
username_tab_completion(dirbuf, 0);
#endif
goto cont;
str_found = add_quote_for_spec_chars(found);
if (type == FIND_FILE_ONLY ||
- (type == FIND_EXE_ONLY && is_execute(&st) == TRUE))
+ (type == FIND_EXE_ONLY && is_execute(&st)))
strcat(str_found, " ");
}
/* Add it to the list */
#define QUOT (UCHAR_MAX+1)
#define collapse_pos(is, in) { \
- memcpy(int_buf+is, int_buf+in, (BUFSIZ+1-is-in)*sizeof(int)); \
- memcpy(pos_buf+is, pos_buf+in, (BUFSIZ+1-is-in)*sizeof(int)); }
+ memcpy(int_buf+(is), int_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); \
+ memcpy(pos_buf+(is), pos_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); }
static int find_match(char *matchBuf, int *len_with_quotes)
{
collapse_pos(j, j + 1);
int_buf[j] |= QUOT;
i++;
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
if (matchBuf[i] == '\t') /* algorithm equivalent */
int_buf[j] = ' ' | QUOT;
#endif
}
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
else if (matchBuf[i] == '\t')
int_buf[j] = ' ';
#endif
}
return;
}
- if (*lastWasTab == FALSE) {
+ if (! *lastWasTab) {
char *tmp;
int len_found;
/* Free up any memory already allocated */
input_tab(0);
-#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
/* If the word starts with `~' and there is no slash in the word,
* then try completing this word as a username. */
}
}
}
-#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
static void get_previous_history(struct history **hp, struct history *p)
{
*
*/
-extern void cmdedit_read_input(char *prompt, char command[BUFSIZ])
+
+int cmdedit_read_input(char *prompt, char command[BUFSIZ])
{
int break_out = 0;
len = 0;
command_ps = command;
- if (new_settings.c_cc[VERASE] == 0) { /* first call */
-
- getTermSettings(0, (void *) &initial_settings);
- memcpy(&new_settings, &initial_settings, sizeof(struct termios));
- new_settings.c_lflag &= ~ICANON; /* unbuffered input */
- /* Turn off echoing and CTRL-C, so we can trap it */
- new_settings.c_lflag &= ~(ECHO | ECHONL | ISIG);
+ getTermSettings(0, (void *) &initial_settings);
+ memcpy(&new_settings, &initial_settings, sizeof(struct termios));
+ new_settings.c_lflag &= ~ICANON; /* unbuffered input */
+ /* Turn off echoing and CTRL-C, so we can trap it */
+ new_settings.c_lflag &= ~(ECHO | ECHONL | ISIG);
#ifndef linux
- /* Hmm, in linux c_cc[] not parsed if set ~ICANON */
- new_settings.c_cc[VMIN] = 1;
- new_settings.c_cc[VTIME] = 0;
- /* Turn off CTRL-C, so we can trap it */
+ /* Hmm, in linux c_cc[] not parsed if set ~ICANON */
+ new_settings.c_cc[VMIN] = 1;
+ new_settings.c_cc[VTIME] = 0;
+ /* Turn off CTRL-C, so we can trap it */
# ifndef _POSIX_VDISABLE
# define _POSIX_VDISABLE '\0'
# endif
- new_settings.c_cc[VINTR] = _POSIX_VDISABLE;
+ new_settings.c_cc[VINTR] = _POSIX_VDISABLE;
#endif
- }
-
command[0] = 0;
setTermSettings(0, (void *) &new_settings);
fflush(stdout); /* buffered out to fast */
- if (read(0, &c, 1) < 1)
+ if (safe_read(0, &c, 1) < 1)
/* if we can't read input then exit */
goto prepare_to_die;
break;
case 3:
/* Control-c -- stop gathering input */
-
- /* Link into lash to reset context to 0 on ^C and such */
- shell_context = 0;
-
- /* Go to the next line */
goto_new_line();
command[0] = 0;
-
- return;
+ len = 0;
+ lastWasTab = FALSE;
+ put_prompt();
+ break;
case 4:
/* Control-d -- Delete one character, or exit
* if the len=0 and no chars to delete */
if (len == 0) {
prepare_to_die:
+#if !defined(CONFIG_ASH)
printf("exit");
- clean_up_and_die(0);
+ goto_new_line();
+ /* cmdedit_reset_term() called in atexit */
+ exit(EXIT_SUCCESS);
+#else
+ break_out = -1; /* for control stoped jobs */
+ break;
+#endif
} else {
input_delete();
}
input_backspace();
break;
case '\t':
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
input_tab(&lastWasTab);
#endif
break;
+ case 11:
+ /* Control-k -- clear to end of line */
+ *(command + cursor) = 0;
+ len = cursor;
+ printf("\033[J");
+ break;
+ case 12:
+ {
+ /* Control-l -- clear screen */
+ int old_cursor = cursor;
+ printf("\033[H");
+ redraw(0, len-old_cursor);
+ }
+ break;
case 14:
/* Control-n -- Get next command in history */
if (hp && hp->n && hp->n->s) {
redraw(cmdedit_y, len -= cursor);
}
break;
-
case ESC:{
/* escape sequence follows */
- if (read(0, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
/* different vt100 emulations */
if (c == '[' || c == 'O') {
- if (read(0, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
}
switch (c) {
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
case '\t': /* Alt-Tab */
input_tab(&lastWasTab);
}
if (c >= '1' && c <= '9')
do
- if (read(0, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
while (c != '~');
break;
}
default: /* If it's regular input, do the normal thing */
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
/* Control-V -- Add non-printable symbol */
if (c == 22) {
- if (read(0, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
if (c == 0) {
beep();
break;
history_counter++;
}
}
-#if defined(BB_FEATURE_SH_FANCY_PROMPT)
+#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
num_ok_lines++;
#endif
}
+ if(break_out>0) {
command[len++] = '\n'; /* set '\n' */
command[len] = 0;
-#if defined(BB_FEATURE_CLEAN_UP) && defined(BB_FEATURE_COMMAND_TAB_COMPLETION)
+ }
+#if defined(CONFIG_FEATURE_CLEAN_UP) && defined(CONFIG_FEATURE_COMMAND_TAB_COMPLETION)
input_tab(0); /* strong free */
#endif
-#if defined(BB_FEATURE_SH_FANCY_PROMPT)
+#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
free(cmdedit_prompt);
#endif
- return;
+ cmdedit_reset_term();
+ return len;
}
-/* Undo the effects of cmdedit_init(). */
-extern void cmdedit_terminate(void)
-{
- cmdedit_reset_term();
- if ((handlers_sets & SET_TERM_HANDLERS) != 0) {
- signal(SIGKILL, SIG_DFL);
- signal(SIGINT, SIG_DFL);
- signal(SIGQUIT, SIG_DFL);
- signal(SIGTERM, SIG_DFL);
- signal(SIGWINCH, SIG_DFL);
- handlers_sets &= ~SET_TERM_HANDLERS;
- }
-}
-#endif /* BB_FEATURE_COMMAND_EDITING */
+#endif /* CONFIG_FEATURE_COMMAND_EDITING */
#ifdef TEST
const char *applet_name = "debug stuff usage";
const char *memory_exhausted = "Memory exhausted";
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
#include <locale.h>
#endif
-unsigned int shell_context;
-
int main(int argc, char **argv)
{
char buff[BUFSIZ];
char *prompt =
-#if defined(BB_FEATURE_SH_FANCY_PROMPT)
+#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
"\\[\\033[32;1m\\]\\u@\\[\\x1b[33;1m\\]\\h:\
\\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] \
\\!\\[\\e[36;1m\\]\\$ \\[\\E[0m\\]";
"% ";
#endif
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
setlocale(LC_ALL, "");
#endif
- shell_context = 1;
- do {
+ while(1) {
int l;
cmdedit_read_input(prompt, buff);
l = strlen(buff);
+ if(l==0)
+ break;
if(l > 0 && buff[l-1] == '\n')
buff[l-1] = 0;
printf("*** cmdedit_read_input() returned line =%s=\n", buff);
- } while (shell_context);
+ }
printf("*** cmdedit_read_input() detect ^C\n");
return 0;
}
projects / oweals / busybox.git / blobdiff