1553 lines
34 KiB
C
1553 lines
34 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Termios command line History and Editting.
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*
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* Copyright (c) 1986-2001 may safely be consumed by a BSD or GPL license.
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* Written by: Vladimir Oleynik <vodz@usa.net>
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*
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* Used ideas:
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* Adam Rogoyski <rogoyski@cs.utexas.edu>
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* Dave Cinege <dcinege@psychosis.com>
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* Jakub Jelinek (c) 1995
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* Erik Andersen <andersee@debian.org> (Majorly adjusted for busybox)
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*
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* This code is 'as is' with no warranty.
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*
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*
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*/
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/*
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Usage and Known bugs:
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Terminal key codes are not extensive, and more will probably
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need to be added. This version was created on Debian GNU/Linux 2.x.
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Delete, Backspace, Home, End, and the arrow keys were tested
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to work in an Xterm and console. Ctrl-A also works as Home.
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Ctrl-E also works as End.
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Small bugs (simple effect):
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- not true viewing if terminal size (x*y symbols) less
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size (prompt + editor`s line + 2 symbols)
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*/
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//#define TEST
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <ctype.h>
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#include <signal.h>
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#include <limits.h>
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#ifndef TEST
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#include "busybox.h"
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#define D(x)
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#else
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#define BB_FEATURE_SH_COMMAND_EDITING
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#define BB_FEATURE_SH_TAB_COMPLETION
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#define BB_FEATURE_SH_USERNAME_COMPLETION
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#define BB_FEATURE_NONPRINTABLE_INVERSE_PUT
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#define BB_FEATURE_BASH_STYLE_PROMT
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#define BB_FEATURE_CLEAN_UP
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#define D(x) x
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#endif /* TEST */
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#ifdef BB_FEATURE_SH_TAB_COMPLETION
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#include <dirent.h>
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#include <sys/stat.h>
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#endif
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#ifdef BB_FEATURE_SH_COMMAND_EDITING
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#ifndef BB_FEATURE_SH_TAB_COMPLETION
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#undef BB_FEATURE_SH_USERNAME_COMPLETION
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#endif
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#if defined(BB_FEATURE_SH_USERNAME_COMPLETION) || defined(BB_FEATURE_BASH_STYLE_PROMT)
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#define BB_FEATURE_GETUSERNAME_AND_HOMEDIR
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#endif
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#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
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#ifndef TEST
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#include "pwd_grp/pwd.h"
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#else
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#include <pwd.h>
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#endif /* TEST */
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#endif /* advanced FEATURES */
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#ifdef TEST
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void *xrealloc(void *old, size_t size)
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{
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return realloc(old, size);
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}
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void *xmalloc(size_t size)
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{
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return malloc(size);
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}
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char *xstrdup(const char *s)
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{
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return strdup(s);
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}
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void *xcalloc(size_t size, size_t se)
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{
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return calloc(size, se);
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}
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#define error_msg(s, d) fprintf(stderr, s, d)
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#endif
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struct history {
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char *s;
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struct history *p;
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struct history *n;
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};
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/* Maximum length of the linked list for the command line history */
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static const int MAX_HISTORY = 15;
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/* First element in command line list */
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static struct history *his_front = NULL;
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/* Last element in command line list */
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static struct history *his_end = NULL;
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/* ED: sparc termios is broken: revert back to old termio handling. */
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#if #cpu(sparc)
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# include <termio.h>
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# define termios termio
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# define setTermSettings(fd,argp) ioctl(fd,TCSETAF,argp)
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# define getTermSettings(fd,argp) ioctl(fd,TCGETA,argp)
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#else
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# include <termios.h>
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# define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
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# define getTermSettings(fd,argp) tcgetattr(fd, argp);
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#endif
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/* Current termio and the previous termio before starting sh */
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static struct termios initial_settings, new_settings;
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#ifndef _POSIX_VDISABLE
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#define _POSIX_VDISABLE '\0'
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#endif
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static
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volatile int cmdedit_termw = 80; /* actual terminal width */
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static int history_counter = 0; /* Number of commands in history list */
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static
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volatile int handlers_sets = 0; /* Set next bites: */
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enum {
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SET_ATEXIT = 1, /* when atexit() has been called and
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get euid,uid,gid to fast compare */
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SET_TERM_HANDLERS = 2, /* set many terminates signal handlers */
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SET_WCHG_HANDLERS = 4, /* winchg signal handler */
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SET_RESET_TERM = 8, /* if the terminal needs to be reset upon exit */
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};
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static int cmdedit_x; /* real x terminal position */
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static int cmdedit_y; /* pseudoreal y terminal position */
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static int cmdedit_prmt_len; /* lenght prompt without colores string */
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static int cursor; /* required global for signal handler */
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static int len; /* --- "" - - "" - -"- --""-- --""--- */
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static char *command_ps; /* --- "" - - "" - -"- --""-- --""--- */
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static
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#ifndef BB_FEATURE_BASH_STYLE_PROMT
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const
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#endif
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char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
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/* Link into lash to reset context to 0 on ^C and such */
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extern unsigned int shell_context;
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#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
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static char *user_buf = "";
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static char *home_pwd_buf = "";
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static int my_euid;
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#endif
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#ifdef BB_FEATURE_BASH_STYLE_PROMT
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static char *hostname_buf = "";
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static int num_ok_lines = 1;
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#endif
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#ifdef BB_FEATURE_SH_TAB_COMPLETION
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#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
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static int my_euid;
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#endif
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static int my_uid;
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static int my_gid;
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#endif /* BB_FEATURE_SH_TAB_COMPLETION */
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static void cmdedit_setwidth(int w, int redraw_flg);
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static void win_changed(int nsig)
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{
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struct winsize win = { 0, 0, 0, 0 };
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static __sighandler_t previous_SIGWINCH_handler; /* for reset */
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/* emulate || signal call */
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if (nsig == -SIGWINCH || nsig == SIGWINCH) {
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ioctl(0, TIOCGWINSZ, &win);
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if (win.ws_col > 0) {
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cmdedit_setwidth(win.ws_col, nsig == SIGWINCH);
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}
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}
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/* Unix not all standart in recall signal */
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if (nsig == -SIGWINCH) /* save previous handler */
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previous_SIGWINCH_handler = signal(SIGWINCH, win_changed);
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else if (nsig == SIGWINCH) /* signaled called handler */
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signal(SIGWINCH, win_changed); /* set for next call */
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else /* nsig == 0 */
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/* set previous handler */
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signal(SIGWINCH, previous_SIGWINCH_handler); /* reset */
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}
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static void cmdedit_reset_term(void)
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{
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if ((handlers_sets & SET_RESET_TERM) != 0) {
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/* sparc and other have broken termios support: use old termio handling. */
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setTermSettings(fileno(stdin), (void *) &initial_settings);
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handlers_sets &= ~SET_RESET_TERM;
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}
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if ((handlers_sets & SET_WCHG_HANDLERS) != 0) {
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/* reset SIGWINCH handler to previous (default) */
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win_changed(0);
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handlers_sets &= ~SET_WCHG_HANDLERS;
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}
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fflush(stdout);
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#ifdef BB_FEATURE_CLEAN_UP
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if (his_front) {
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struct history *n;
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//while(his_front!=his_end) {
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while (his_front != his_end) {
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n = his_front->n;
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free(his_front->s);
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free(his_front);
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his_front = n;
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}
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}
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#endif
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}
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/* special for recount position for scroll and remove terminal margin effect */
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static void cmdedit_set_out_char(int next_char)
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{
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int c = command_ps[cursor];
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if (c == 0)
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c = ' '; /* destroy end char? */
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#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
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if (!isprint(c)) { /* Inverse put non-printable characters */
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if (((unsigned char) c) >= 128)
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c -= 128;
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if (((unsigned char) c) < ' ')
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c += '@';
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if (c == 127)
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c = '?';
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printf("\033[7m%c\033[0m", c);
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} else
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#endif
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putchar(c);
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if (++cmdedit_x >= cmdedit_termw) {
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/* terminal is scrolled down */
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cmdedit_y++;
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cmdedit_x = 0;
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if (!next_char)
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next_char = ' ';
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/* destroy "(auto)margin" */
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putchar(next_char);
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putchar('\b');
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}
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cursor++;
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}
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/* Move to end line. Bonus: rewrite line from cursor */
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static void input_end(void)
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{
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while (cursor < len)
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cmdedit_set_out_char(0);
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}
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/* Go to the next line */
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static void goto_new_line(void)
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{
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input_end();
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if (cmdedit_x)
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putchar('\n');
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}
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static inline void out1str(const char *s)
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{
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fputs(s, stdout);
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}
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static inline void beep(void)
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{
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putchar('\007');
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}
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/* Move back one charactor */
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/* special for slow terminal */
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static void input_backward(int num)
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{
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if (num > cursor)
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num = cursor;
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cursor -= num; /* new cursor (in command, not terminal) */
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if (cmdedit_x >= num) { /* no to up line */
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cmdedit_x -= num;
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if (num < 4)
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while (num-- > 0)
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putchar('\b');
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else
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printf("\033[%dD", num);
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} else {
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int count_y;
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if (cmdedit_x) {
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putchar('\r'); /* back to first terminal pos. */
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num -= cmdedit_x; /* set previous backward */
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}
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count_y = 1 + num / cmdedit_termw;
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printf("\033[%dA", count_y);
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cmdedit_y -= count_y;
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/* require forward after uping */
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cmdedit_x = cmdedit_termw * count_y - num;
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printf("\033[%dC", cmdedit_x); /* set term cursor */
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}
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}
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static void put_prompt(void)
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{
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out1str(cmdedit_prompt);
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cmdedit_x = cmdedit_prmt_len; /* count real x terminal position */
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cursor = 0;
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}
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#ifdef BB_FEATURE_BASH_STYLE_PROMT
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static void
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add_to_prompt(char **prmt_mem_ptr, int *alm, int *prmt_len,
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const char *addb)
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{
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int l = strlen(addb);
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*prmt_len += l;
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if (*alm < (*prmt_len) + 1) {
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*alm = (*prmt_len) + 1;
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*prmt_mem_ptr = xrealloc(*prmt_mem_ptr, *alm);
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}
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strcat(*prmt_mem_ptr, addb);
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}
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#endif
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static void parse_prompt(const char *prmt_ptr)
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{
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#ifdef BB_FEATURE_BASH_STYLE_PROMT
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int alm = strlen(prmt_ptr) + 1; /* supposedly require memory */
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int prmt_len = 0;
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int sub_len = 0;
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int flg_not_length = '[';
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char *prmt_mem_ptr = xstrdup(prmt_ptr);
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char pwd_buf[PATH_MAX + 1];
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char buf[16];
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int c;
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pwd_buf[0] = 0;
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*prmt_mem_ptr = 0;
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while (*prmt_ptr) {
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c = *prmt_ptr++;
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if (c == '\\') {
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c = *prmt_ptr;
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if (c == 0)
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break;
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prmt_ptr++;
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switch (c) {
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case 'u':
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add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, user_buf);
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continue;
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case 'h':
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if (hostname_buf[0] == 0) {
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hostname_buf = xcalloc(256, 1);
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if (gethostname(hostname_buf, 255) < 0) {
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strcpy(hostname_buf, "?");
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} else {
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char *s = strchr(hostname_buf, '.');
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if (s)
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*s = 0;
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}
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}
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add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len,
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hostname_buf);
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continue;
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case '$':
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c = my_euid == 0 ? '#' : '$';
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break;
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case 'w':
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if (pwd_buf[0] == 0) {
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int l;
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getcwd(pwd_buf, PATH_MAX);
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l = strlen(home_pwd_buf);
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if (home_pwd_buf[0] != 0 &&
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strncmp(home_pwd_buf, pwd_buf, l) == 0) {
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strcpy(pwd_buf + 1, pwd_buf + l);
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pwd_buf[0] = '~';
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}
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}
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add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, pwd_buf);
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continue;
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case '!':
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snprintf(buf, sizeof(buf), "%d", num_ok_lines);
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add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, buf);
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continue;
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case 'e':
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case 'E': /* \e \E = \033 */
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c = '\033';
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break;
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case 'x':
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case 'X':
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':{
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int l;
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int ho = 0;
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char *eho;
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if (c == 'X')
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c = 'x';
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for (l = 0; l < 3;) {
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buf[l++] = *prmt_ptr;
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buf[l] = 0;
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ho = strtol(buf, &eho, c == 'x' ? 16 : 8);
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if (ho > UCHAR_MAX || (eho - buf) < l) {
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l--;
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break;
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}
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prmt_ptr++;
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}
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buf[l] = 0;
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ho = strtol(buf, 0, c == 'x' ? 16 : 8);
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c = ho == 0 ? '?' : (char) ho;
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break;
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}
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case '[':
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case ']':
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if (c == flg_not_length) {
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flg_not_length = flg_not_length == '[' ? ']' : '[';
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continue;
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}
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break;
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}
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}
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buf[0] = c;
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buf[1] = 0;
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add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, buf);
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if (flg_not_length == ']')
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sub_len++;
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}
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cmdedit_prmt_len = prmt_len - sub_len;
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cmdedit_prompt = prmt_mem_ptr;
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#else
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cmdedit_prompt = prmt_ptr;
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cmdedit_prmt_len = strlen(prmt_ptr);
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#endif
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put_prompt();
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}
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|
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/* draw promt, editor line, and clear tail */
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|
static void redraw(int y, int back_cursor)
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{
|
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if (y > 0) /* up to start y */
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printf("\033[%dA", y);
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cmdedit_y = 0; /* new quasireal y */
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putchar('\r');
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put_prompt();
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input_end(); /* rewrite */
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printf("\033[J"); /* destroy tail after cursor */
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input_backward(back_cursor);
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}
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/* Delete the char in front of the cursor */
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static void input_delete(void)
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{
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int j = cursor;
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if (j == len)
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return;
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strcpy(command_ps + j, command_ps + j + 1);
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len--;
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input_end(); /* rewtite new line */
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cmdedit_set_out_char(0); /* destroy end char */
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input_backward(cursor - j); /* back to old pos cursor */
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}
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/* Delete the char in back of the cursor */
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static void input_backspace(void)
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{
|
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if (cursor > 0) {
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input_backward(1);
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input_delete();
|
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}
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}
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/* Move forward one charactor */
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static void input_forward(void)
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{
|
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if (cursor < len)
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cmdedit_set_out_char(command_ps[cursor + 1]);
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}
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static void clean_up_and_die(int sig)
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{
|
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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;
|
|
if (w <= cmdedit_termw) {
|
|
cmdedit_termw = cmdedit_termw % w;
|
|
}
|
|
if (w > cmdedit_termw) {
|
|
|
|
cmdedit_termw = w;
|
|
|
|
if (redraw_flg) {
|
|
/* new y for current cursor */
|
|
int new_y = (cursor + cmdedit_prmt_len) / w;
|
|
|
|
/* redraw */
|
|
redraw((new_y >= cmdedit_y ? new_y : cmdedit_y), len - cursor);
|
|
fflush(stdout);
|
|
}
|
|
}
|
|
}
|
|
|
|
extern void cmdedit_init(void)
|
|
{
|
|
if ((handlers_sets & SET_WCHG_HANDLERS) == 0) {
|
|
/* emulate usage handler to set handler and call yours work */
|
|
win_changed(-SIGWINCH);
|
|
handlers_sets |= SET_WCHG_HANDLERS;
|
|
}
|
|
|
|
if ((handlers_sets & SET_ATEXIT) == 0) {
|
|
#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
|
|
struct passwd *entry;
|
|
|
|
my_euid = geteuid();
|
|
entry = getpwuid(my_euid);
|
|
if (entry) {
|
|
user_buf = xstrdup(entry->pw_name);
|
|
home_pwd_buf = xstrdup(entry->pw_dir);
|
|
}
|
|
#endif
|
|
|
|
#ifdef BB_FEATURE_SH_TAB_COMPLETION
|
|
|
|
#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
|
|
my_euid = geteuid();
|
|
#endif
|
|
my_uid = getuid();
|
|
my_gid = getgid();
|
|
#endif /* BB_FEATURE_SH_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_SH_TAB_COMPLETION
|
|
|
|
static int is_execute(const struct stat *st)
|
|
{
|
|
if ((!my_euid && (st->st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) ||
|
|
(my_uid == st->st_uid && (st->st_mode & S_IXUSR)) ||
|
|
(my_gid == st->st_gid && (st->st_mode & S_IXGRP)) ||
|
|
(st->st_mode & S_IXOTH)) return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
|
|
|
|
static char **username_tab_completion(char *ud, int *num_matches)
|
|
{
|
|
struct passwd *entry;
|
|
int userlen;
|
|
char *temp;
|
|
|
|
|
|
ud++; /* ~user/... to user/... */
|
|
userlen = strlen(ud);
|
|
|
|
if (num_matches == 0) { /* "~/..." or "~user/..." */
|
|
char *sav_ud = ud - 1;
|
|
char *home = 0;
|
|
|
|
if (*ud == '/') { /* "~/..." */
|
|
home = home_pwd_buf;
|
|
} else {
|
|
/* "~user/..." */
|
|
temp = strchr(ud, '/');
|
|
*temp = 0; /* ~user\0 */
|
|
entry = getpwnam(ud);
|
|
*temp = '/'; /* restore ~user/... */
|
|
ud = temp;
|
|
if (entry)
|
|
home = entry->pw_dir;
|
|
}
|
|
if (home) {
|
|
if ((userlen + strlen(home) + 1) < BUFSIZ) {
|
|
char temp2[BUFSIZ]; /* argument size */
|
|
|
|
/* /home/user/... */
|
|
sprintf(temp2, "%s%s", home, ud);
|
|
strcpy(sav_ud, temp2);
|
|
}
|
|
}
|
|
return 0; /* void, result save to argument :-) */
|
|
} else {
|
|
/* "~[^/]*" */
|
|
char **matches = (char **) NULL;
|
|
int nm = 0;
|
|
|
|
setpwent();
|
|
|
|
while ((entry = getpwent()) != NULL) {
|
|
/* Null usernames should result in all users as possible completions. */
|
|
if ( /*!userlen || */ !strncmp(ud, entry->pw_name, userlen)) {
|
|
|
|
temp = xmalloc(3 + strlen(entry->pw_name));
|
|
sprintf(temp, "~%s/", entry->pw_name);
|
|
matches = xrealloc(matches, (nm + 1) * sizeof(char *));
|
|
|
|
matches[nm++] = temp;
|
|
}
|
|
}
|
|
|
|
endpwent();
|
|
(*num_matches) = nm;
|
|
return (matches);
|
|
}
|
|
}
|
|
#endif /* BB_FEATURE_SH_USERNAME_COMPLETION */
|
|
|
|
enum {
|
|
FIND_EXE_ONLY = 0,
|
|
FIND_DIR_ONLY = 1,
|
|
FIND_FILE_ONLY = 2,
|
|
};
|
|
|
|
static int path_parse(char ***p, int flags)
|
|
{
|
|
int npth;
|
|
char *tmp;
|
|
char *pth;
|
|
|
|
/* if not setenv PATH variable, to search cur dir "." */
|
|
if (flags != FIND_EXE_ONLY || (pth = getenv("PATH")) == 0 ||
|
|
/* PATH=<empty> or PATH=:<empty> */
|
|
*pth == 0 || (*pth == ':' && *(pth + 1) == 0)) {
|
|
return 1;
|
|
}
|
|
|
|
tmp = pth;
|
|
npth = 0;
|
|
|
|
for (;;) {
|
|
npth++; /* count words is + 1 count ':' */
|
|
tmp = strchr(tmp, ':');
|
|
if (tmp) {
|
|
if (*++tmp == 0)
|
|
break; /* :<empty> */
|
|
} else
|
|
break;
|
|
}
|
|
|
|
*p = xmalloc(npth * sizeof(char *));
|
|
|
|
tmp = pth;
|
|
(*p)[0] = xstrdup(tmp);
|
|
npth = 1; /* count words is + 1 count ':' */
|
|
|
|
for (;;) {
|
|
tmp = strchr(tmp, ':');
|
|
if (tmp) {
|
|
(*p)[0][(tmp - pth)] = 0; /* ':' -> '\0' */
|
|
if (*++tmp == 0)
|
|
break; /* :<empty> */
|
|
} else
|
|
break;
|
|
(*p)[npth++] = &(*p)[0][(tmp - pth)]; /* p[next]=p[0][&'\0'+1] */
|
|
}
|
|
|
|
return npth;
|
|
}
|
|
|
|
static char *add_quote_for_spec_chars(char *found)
|
|
{
|
|
int l = 0;
|
|
char *s = xmalloc((strlen(found) + 1) * 2);
|
|
|
|
while (*found) {
|
|
if (strchr(" `\"#$%^&*()=+{}[]:;\'|\\<>", *found))
|
|
s[l++] = '\\';
|
|
s[l++] = *found++;
|
|
}
|
|
s[l] = 0;
|
|
return s;
|
|
}
|
|
|
|
static char **exe_n_cwd_tab_completion(char *command, int *num_matches,
|
|
int type)
|
|
{
|
|
|
|
char **matches = 0;
|
|
DIR *dir;
|
|
struct dirent *next;
|
|
char dirbuf[BUFSIZ];
|
|
int nm = *num_matches;
|
|
struct stat st;
|
|
char *path1[1];
|
|
char **paths = path1;
|
|
int npaths;
|
|
int i;
|
|
char found[BUFSIZ + 4 + PATH_MAX];
|
|
char *pfind = strrchr(command, '/');
|
|
|
|
path1[0] = ".";
|
|
|
|
if (pfind == NULL) {
|
|
/* no dir, if flags==EXE_ONLY - get paths, else "." */
|
|
npaths = path_parse(&paths, type);
|
|
pfind = command;
|
|
} else {
|
|
/* with dir */
|
|
/* save for change */
|
|
strcpy(dirbuf, command);
|
|
/* set dir only */
|
|
dirbuf[(pfind - command) + 1] = 0;
|
|
#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
|
|
if (dirbuf[0] == '~') /* ~/... or ~user/... */
|
|
username_tab_completion(dirbuf, 0);
|
|
#endif
|
|
/* "strip" dirname in command */
|
|
pfind++;
|
|
|
|
paths[0] = dirbuf;
|
|
npaths = 1; /* only 1 dir */
|
|
}
|
|
|
|
for (i = 0; i < npaths; i++) {
|
|
|
|
dir = opendir(paths[i]);
|
|
if (!dir) /* Don't print an error */
|
|
continue;
|
|
|
|
while ((next = readdir(dir)) != NULL) {
|
|
const char *str_merge = "%s/%s";
|
|
char *str_found = next->d_name;
|
|
|
|
/* matched ? */
|
|
if (strncmp(str_found, pfind, strlen(pfind)))
|
|
continue;
|
|
/* not see .name without .match */
|
|
if (*str_found == '.' && *pfind == 0) {
|
|
if (*paths[i] == '/' && paths[i][1] == 0
|
|
&& str_found[1] == 0) str_found = ""; /* only "/" */
|
|
else
|
|
continue;
|
|
}
|
|
if (paths[i][strlen(paths[i]) - 1] == '/')
|
|
str_merge = "%s%s";
|
|
sprintf(found, str_merge, paths[i], str_found);
|
|
/* hmm, remover in progress? */
|
|
if (stat(found, &st) < 0)
|
|
continue;
|
|
/* find with dirs ? */
|
|
if (paths[i] != dirbuf)
|
|
strcpy(found, next->d_name); /* only name */
|
|
if (S_ISDIR(st.st_mode)) {
|
|
/* name is directory */
|
|
/* algorithmic only "/" ? */
|
|
if (*str_found)
|
|
strcat(found, "/");
|
|
str_found = add_quote_for_spec_chars(found);
|
|
} else {
|
|
/* not put found file if search only dirs for cd */
|
|
if (type == FIND_DIR_ONLY)
|
|
continue;
|
|
str_found = add_quote_for_spec_chars(found);
|
|
if (type == FIND_FILE_ONLY ||
|
|
(type == FIND_EXE_ONLY && is_execute(&st) == TRUE))
|
|
strcat(str_found, " ");
|
|
}
|
|
/* Add it to the list */
|
|
matches = xrealloc(matches, (nm + 1) * sizeof(char *));
|
|
|
|
matches[nm++] = str_found;
|
|
}
|
|
closedir(dir);
|
|
}
|
|
if (paths != path1) {
|
|
free(paths[0]); /* allocated memory only in first member */
|
|
free(paths);
|
|
}
|
|
*num_matches = nm;
|
|
return (matches);
|
|
}
|
|
|
|
static int match_compare(const void *a, const void *b)
|
|
{
|
|
return strcmp(*(char **) a, *(char **) b);
|
|
}
|
|
|
|
|
|
|
|
#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)); }
|
|
|
|
static int find_match(char *matchBuf, int *len_with_quotes)
|
|
{
|
|
int i, j;
|
|
int command_mode;
|
|
int c, c2;
|
|
int int_buf[BUFSIZ + 1];
|
|
int pos_buf[BUFSIZ + 1];
|
|
|
|
/* set to integer dimension characters and own positions */
|
|
for (i = 0;; i++) {
|
|
int_buf[i] = (int) ((unsigned char) matchBuf[i]);
|
|
if (int_buf[i] == 0) {
|
|
pos_buf[i] = -1; /* indicator end line */
|
|
break;
|
|
} else
|
|
pos_buf[i] = i;
|
|
}
|
|
|
|
/* mask \+symbol and convert '\t' to ' ' */
|
|
for (i = j = 0; matchBuf[i]; i++, j++)
|
|
if (matchBuf[i] == '\\') {
|
|
collapse_pos(j, j + 1);
|
|
int_buf[j] |= QUOT;
|
|
i++;
|
|
#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
|
|
if (matchBuf[i] == '\t') /* algorithm equivalent */
|
|
int_buf[j] = ' ' | QUOT;
|
|
#endif
|
|
}
|
|
#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
|
|
else if (matchBuf[i] == '\t')
|
|
int_buf[j] = ' ';
|
|
#endif
|
|
|
|
/* mask "symbols" or 'symbols' */
|
|
c2 = 0;
|
|
for (i = 0; int_buf[i]; i++) {
|
|
c = int_buf[i];
|
|
if (c == '\'' || c == '"') {
|
|
if (c2 == 0)
|
|
c2 = c;
|
|
else {
|
|
if (c == c2)
|
|
c2 = 0;
|
|
else
|
|
int_buf[i] |= QUOT;
|
|
}
|
|
} else if (c2 != 0 && c != '$')
|
|
int_buf[i] |= QUOT;
|
|
}
|
|
|
|
/* skip commands with arguments if line have commands delimiters */
|
|
/* ';' ';;' '&' '|' '&&' '||' but `>&' `<&' `>|' */
|
|
for (i = 0; int_buf[i]; i++) {
|
|
c = int_buf[i];
|
|
c2 = int_buf[i + 1];
|
|
j = i ? int_buf[i - 1] : -1;
|
|
command_mode = 0;
|
|
if (c == ';' || c == '&' || c == '|') {
|
|
command_mode = 1 + (c == c2);
|
|
if (c == '&') {
|
|
if (j == '>' || j == '<')
|
|
command_mode = 0;
|
|
} else if (c == '|' && j == '>')
|
|
command_mode = 0;
|
|
}
|
|
if (command_mode) {
|
|
collapse_pos(0, i + command_mode);
|
|
i = -1; /* hack incremet */
|
|
}
|
|
}
|
|
/* collapse `command...` */
|
|
for (i = 0; int_buf[i]; i++)
|
|
if (int_buf[i] == '`') {
|
|
for (j = i + 1; int_buf[j]; j++)
|
|
if (int_buf[j] == '`') {
|
|
collapse_pos(i, j + 1);
|
|
j = 0;
|
|
break;
|
|
}
|
|
if (j) {
|
|
/* not found close ` - command mode, collapse all previous */
|
|
collapse_pos(0, i + 1);
|
|
break;
|
|
} else
|
|
i--; /* hack incremet */
|
|
}
|
|
|
|
/* collapse (command...(command...)...) or {command...{command...}...} */
|
|
c = 0; /* "recursive" level */
|
|
c2 = 0;
|
|
for (i = 0; int_buf[i]; i++)
|
|
if (int_buf[i] == '(' || int_buf[i] == '{') {
|
|
if (int_buf[i] == '(')
|
|
c++;
|
|
else
|
|
c2++;
|
|
collapse_pos(0, i + 1);
|
|
i = -1; /* hack incremet */
|
|
}
|
|
for (i = 0; pos_buf[i] >= 0 && (c > 0 || c2 > 0); i++)
|
|
if ((int_buf[i] == ')' && c > 0) || (int_buf[i] == '}' && c2 > 0)) {
|
|
if (int_buf[i] == ')')
|
|
c--;
|
|
else
|
|
c2--;
|
|
collapse_pos(0, i + 1);
|
|
i = -1; /* hack incremet */
|
|
}
|
|
|
|
/* skip first not quote space */
|
|
for (i = 0; int_buf[i]; i++)
|
|
if (int_buf[i] != ' ')
|
|
break;
|
|
if (i)
|
|
collapse_pos(0, i);
|
|
|
|
/* set find mode for completion */
|
|
command_mode = FIND_EXE_ONLY;
|
|
for (i = 0; int_buf[i]; i++)
|
|
if (int_buf[i] == ' ' || int_buf[i] == '<' || int_buf[i] == '>') {
|
|
if (int_buf[i] == ' ' && command_mode == FIND_EXE_ONLY
|
|
&& strncmp(&matchBuf[pos_buf[0]], "cd", 2) == 0)
|
|
command_mode = FIND_DIR_ONLY;
|
|
else {
|
|
command_mode = FIND_FILE_ONLY;
|
|
break;
|
|
}
|
|
}
|
|
/* "strlen" */
|
|
for (i = 0; int_buf[i]; i++);
|
|
/* find last word */
|
|
for (--i; i >= 0; i--) {
|
|
c = int_buf[i];
|
|
if (c == ' ' || c == '<' || c == '>' || c == '|' || c == '&') {
|
|
collapse_pos(0, i + 1);
|
|
break;
|
|
}
|
|
}
|
|
/* skip first not quoted '\'' or '"' */
|
|
for (i = 0; int_buf[i] == '\'' || int_buf[i] == '"'; i++);
|
|
/* collapse quote or unquote // or /~ */
|
|
while ((int_buf[i] & ~QUOT) == '/' && (
|
|
(int_buf[i + 1] & ~QUOT) == '/'
|
|
|| (int_buf[i + 1] & ~QUOT) ==
|
|
'~')) i++;
|
|
if (i)
|
|
collapse_pos(0, i);
|
|
|
|
/* set only match and destroy quotes */
|
|
j = 0;
|
|
for (i = 0; pos_buf[i] >= 0; i++) {
|
|
matchBuf[i] = matchBuf[pos_buf[i]];
|
|
j = pos_buf[i] + 1;
|
|
}
|
|
matchBuf[i] = 0;
|
|
/* old lenght matchBuf with quotes symbols */
|
|
*len_with_quotes = j ? j - pos_buf[0] : 0;
|
|
|
|
return command_mode;
|
|
}
|
|
|
|
|
|
static void input_tab(int *lastWasTab)
|
|
{
|
|
/* Do TAB completion */
|
|
static int num_matches;
|
|
static char **matches;
|
|
|
|
if (lastWasTab == 0) { /* free all memory */
|
|
if (matches) {
|
|
while (num_matches > 0)
|
|
free(matches[--num_matches]);
|
|
free(matches);
|
|
matches = (char **) NULL;
|
|
}
|
|
return;
|
|
}
|
|
if (*lastWasTab == FALSE) {
|
|
|
|
char *tmp;
|
|
int len_found;
|
|
char matchBuf[BUFSIZ];
|
|
int find_type;
|
|
int recalc_pos;
|
|
|
|
*lastWasTab = TRUE; /* flop trigger */
|
|
|
|
/* Make a local copy of the string -- up
|
|
* to the position of the cursor */
|
|
tmp = strncpy(matchBuf, command_ps, cursor);
|
|
tmp[cursor] = 0;
|
|
|
|
find_type = find_match(matchBuf, &recalc_pos);
|
|
|
|
/* Free up any memory already allocated */
|
|
input_tab(0);
|
|
|
|
#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
|
|
/* If the word starts with `~' and there is no slash in the word,
|
|
* then try completing this word as a username. */
|
|
|
|
if (matchBuf[0] == '~' && strchr(matchBuf, '/') == 0)
|
|
matches = username_tab_completion(matchBuf, &num_matches);
|
|
#endif
|
|
/* Try to match any executable in our path and everything
|
|
* in the current working directory that matches. */
|
|
if (!matches)
|
|
matches =
|
|
exe_n_cwd_tab_completion(matchBuf, &num_matches,
|
|
find_type);
|
|
|
|
/* Did we find exactly one match? */
|
|
if (!matches || num_matches > 1) {
|
|
char *tmp1;
|
|
|
|
beep();
|
|
if (!matches)
|
|
return; /* not found */
|
|
/* sort */
|
|
qsort(matches, num_matches, sizeof(char *), match_compare);
|
|
|
|
/* find minimal match */
|
|
tmp = xstrdup(matches[0]);
|
|
for (tmp1 = tmp; *tmp1; tmp1++)
|
|
for (len_found = 1; len_found < num_matches; len_found++)
|
|
if (matches[len_found][(tmp1 - tmp)] != *tmp1) {
|
|
*tmp1 = 0;
|
|
break;
|
|
}
|
|
if (*tmp == 0) { /* have unique */
|
|
free(tmp);
|
|
return;
|
|
}
|
|
} else { /* one match */
|
|
tmp = matches[0];
|
|
/* for next completion current found */
|
|
*lastWasTab = FALSE;
|
|
}
|
|
|
|
len_found = strlen(tmp);
|
|
/* have space to placed match? */
|
|
if ((len_found - strlen(matchBuf) + len) < BUFSIZ) {
|
|
|
|
/* before word for match */
|
|
command_ps[cursor - recalc_pos] = 0;
|
|
/* save tail line */
|
|
strcpy(matchBuf, command_ps + cursor);
|
|
/* add match */
|
|
strcat(command_ps, tmp);
|
|
/* add tail */
|
|
strcat(command_ps, matchBuf);
|
|
/* back to begin word for match */
|
|
input_backward(recalc_pos);
|
|
/* new pos */
|
|
recalc_pos = cursor + len_found;
|
|
/* new len */
|
|
len = strlen(command_ps);
|
|
/* write out the matched command */
|
|
input_end();
|
|
input_backward(cursor - recalc_pos);
|
|
}
|
|
if (tmp != matches[0])
|
|
free(tmp);
|
|
} else {
|
|
/* Ok -- the last char was a TAB. Since they
|
|
* just hit TAB again, print a list of all the
|
|
* available choices... */
|
|
if (matches && num_matches > 0) {
|
|
int i, col, l;
|
|
int sav_cursor = cursor; /* change goto_new_line() */
|
|
|
|
/* Go to the next line */
|
|
goto_new_line();
|
|
for (i = 0, col = 0; i < num_matches; i++) {
|
|
l = strlen(matches[i]);
|
|
if (l < 14)
|
|
l = 14;
|
|
printf("%-14s ", matches[i]);
|
|
if ((l += 2) > 16)
|
|
while (l % 16) {
|
|
putchar(' ');
|
|
l++;
|
|
}
|
|
col += l;
|
|
col -= (col / cmdedit_termw) * cmdedit_termw;
|
|
if (col > 60 && matches[i + 1] != NULL) {
|
|
putchar('\n');
|
|
col = 0;
|
|
}
|
|
}
|
|
/* Go to the next line and rewrite */
|
|
putchar('\n');
|
|
redraw(0, len - sav_cursor);
|
|
}
|
|
}
|
|
}
|
|
#endif /* BB_FEATURE_SH_TAB_COMPLETION */
|
|
|
|
static void get_previous_history(struct history **hp, struct history *p)
|
|
{
|
|
if ((*hp)->s)
|
|
free((*hp)->s);
|
|
(*hp)->s = xstrdup(command_ps);
|
|
*hp = p;
|
|
}
|
|
|
|
static inline void get_next_history(struct history **hp)
|
|
{
|
|
get_previous_history(hp, (*hp)->n);
|
|
}
|
|
|
|
enum {
|
|
ESC = 27,
|
|
DEL = 127,
|
|
};
|
|
|
|
|
|
/*
|
|
* This function is used to grab a character buffer
|
|
* from the input file descriptor and allows you to
|
|
* a string with full command editing (sortof like
|
|
* a mini readline).
|
|
*
|
|
* The following standard commands are not implemented:
|
|
* ESC-b -- Move back one word
|
|
* ESC-f -- Move forward one word
|
|
* ESC-d -- Delete back one word
|
|
* ESC-h -- Delete forward one word
|
|
* CTL-t -- Transpose two characters
|
|
*
|
|
* Furthermore, the "vi" command editing keys are not implemented.
|
|
*
|
|
*/
|
|
extern void cmdedit_read_input(char *prompt, char command[BUFSIZ])
|
|
{
|
|
|
|
int inputFd = fileno(stdin);
|
|
|
|
int break_out = 0;
|
|
int lastWasTab = FALSE;
|
|
char c = 0;
|
|
struct history *hp = his_end;
|
|
|
|
/* prepare before init handlers */
|
|
cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
|
|
len = 0;
|
|
command_ps = command;
|
|
|
|
if (new_settings.c_cc[VMIN] == 0) { /* first call */
|
|
|
|
getTermSettings(inputFd, (void *) &initial_settings);
|
|
memcpy(&new_settings, &initial_settings, sizeof(struct termios));
|
|
|
|
new_settings.c_cc[VMIN] = 1;
|
|
new_settings.c_cc[VTIME] = 0;
|
|
new_settings.c_cc[VINTR] = _POSIX_VDISABLE; /* Turn off CTRL-C, so we can trap it */
|
|
new_settings.c_lflag &= ~ICANON; /* unbuffered input */
|
|
new_settings.c_lflag &= ~(ECHO | ECHOCTL | ECHONL); /* Turn off echoing */
|
|
}
|
|
|
|
command[0] = 0;
|
|
|
|
setTermSettings(inputFd, (void *) &new_settings);
|
|
handlers_sets |= SET_RESET_TERM;
|
|
|
|
/* Print out the command prompt */
|
|
parse_prompt(prompt);
|
|
/* Now initialize things */
|
|
cmdedit_init();
|
|
|
|
while (1) {
|
|
|
|
fflush(stdout); /* buffered out to fast */
|
|
|
|
if (read(inputFd, &c, 1) < 1)
|
|
return;
|
|
|
|
switch (c) {
|
|
case '\n':
|
|
case '\r':
|
|
/* Enter */
|
|
goto_new_line();
|
|
break_out = 1;
|
|
break;
|
|
case 1:
|
|
/* Control-a -- Beginning of line */
|
|
input_backward(cursor);
|
|
break;
|
|
case 2:
|
|
/* Control-b -- Move back one character */
|
|
input_backward(1);
|
|
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;
|
|
case 4:
|
|
/* Control-d -- Delete one character, or exit
|
|
* if the len=0 and no chars to delete */
|
|
if (len == 0) {
|
|
printf("exit");
|
|
clean_up_and_die(0);
|
|
} else {
|
|
input_delete();
|
|
}
|
|
break;
|
|
case 5:
|
|
/* Control-e -- End of line */
|
|
input_end();
|
|
break;
|
|
case 6:
|
|
/* Control-f -- Move forward one character */
|
|
input_forward();
|
|
break;
|
|
case '\b':
|
|
case DEL:
|
|
/* Control-h and DEL */
|
|
input_backspace();
|
|
break;
|
|
case '\t':
|
|
#ifdef BB_FEATURE_SH_TAB_COMPLETION
|
|
input_tab(&lastWasTab);
|
|
#endif
|
|
break;
|
|
case 14:
|
|
/* Control-n -- Get next command in history */
|
|
if (hp && hp->n && hp->n->s) {
|
|
get_next_history(&hp);
|
|
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);
|
|
goto rewrite_line;
|
|
} else {
|
|
beep();
|
|
}
|
|
break;
|
|
case 21:
|
|
/* Control-U -- Clear line before cursor */
|
|
if (cursor) {
|
|
strcpy(command, command + cursor);
|
|
redraw(cmdedit_y, len -= cursor);
|
|
}
|
|
break;
|
|
|
|
case ESC:{
|
|
/* escape sequence follows */
|
|
if (read(inputFd, &c, 1) < 1)
|
|
return;
|
|
/* different vt100 emulations */
|
|
if (c == '[' || c == 'O') {
|
|
if (read(inputFd, &c, 1) < 1)
|
|
return;
|
|
}
|
|
switch (c) {
|
|
#ifdef BB_FEATURE_SH_TAB_COMPLETION
|
|
case '\t': /* Alt-Tab */
|
|
|
|
input_tab(&lastWasTab);
|
|
break;
|
|
#endif
|
|
case 'A':
|
|
/* Up Arrow -- Get previous command from history */
|
|
if (hp && hp->p) {
|
|
get_previous_history(&hp, hp->p);
|
|
goto rewrite_line;
|
|
} else {
|
|
beep();
|
|
}
|
|
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();
|
|
}
|
|
break;
|
|
|
|
/* Rewrite the line with the selected history item */
|
|
rewrite_line:
|
|
/* change command */
|
|
len = strlen(strcpy(command, hp->s));
|
|
/* redraw and go to end line */
|
|
redraw(cmdedit_y, 0);
|
|
break;
|
|
case 'C':
|
|
/* Right Arrow -- Move forward one character */
|
|
input_forward();
|
|
break;
|
|
case 'D':
|
|
/* Left Arrow -- Move back one character */
|
|
input_backward(1);
|
|
break;
|
|
case '3':
|
|
/* Delete */
|
|
input_delete();
|
|
break;
|
|
case '1':
|
|
case 'H':
|
|
/* Home (Ctrl-A) */
|
|
input_backward(cursor);
|
|
break;
|
|
case '4':
|
|
case 'F':
|
|
/* End (Ctrl-E) */
|
|
input_end();
|
|
break;
|
|
default:
|
|
if (!(c >= '1' && c <= '9'))
|
|
c = 0;
|
|
beep();
|
|
}
|
|
if (c >= '1' && c <= '9')
|
|
do
|
|
if (read(inputFd, &c, 1) < 1)
|
|
return;
|
|
while (c != '~');
|
|
break;
|
|
}
|
|
|
|
default: /* If it's regular input, do the normal thing */
|
|
#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
|
|
/* Control-V -- Add non-printable symbol */
|
|
if (c == 22) {
|
|
if (read(inputFd, &c, 1) < 1)
|
|
return;
|
|
if (c == 0) {
|
|
beep();
|
|
break;
|
|
}
|
|
} else
|
|
#endif
|
|
if (!isprint(c)) /* Skip non-printable characters */
|
|
break;
|
|
|
|
if (len >= (BUFSIZ - 2)) /* Need to leave space for enter */
|
|
break;
|
|
|
|
len++;
|
|
|
|
if (cursor == (len - 1)) { /* Append if at the end of the line */
|
|
*(command + cursor) = c;
|
|
*(command + cursor + 1) = 0;
|
|
cmdedit_set_out_char(0);
|
|
} else { /* Insert otherwise */
|
|
int sc = cursor;
|
|
|
|
memmove(command + sc + 1, command + sc, len - sc);
|
|
*(command + sc) = c;
|
|
sc++;
|
|
/* rewrite from cursor */
|
|
input_end();
|
|
/* to prev x pos + 1 */
|
|
input_backward(cursor - sc);
|
|
}
|
|
|
|
break;
|
|
}
|
|
if (break_out) /* Enter is the command terminator, no more input. */
|
|
break;
|
|
|
|
if (c != '\t')
|
|
lastWasTab = FALSE;
|
|
}
|
|
|
|
setTermSettings(inputFd, (void *) &initial_settings);
|
|
handlers_sets &= ~SET_RESET_TERM;
|
|
|
|
/* Handle command history log */
|
|
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;
|
|
|
|
/* 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 defined(BB_FEATURE_BASH_STYLE_PROMT)
|
|
num_ok_lines++;
|
|
#endif
|
|
}
|
|
command[len++] = '\n'; /* set '\n' */
|
|
command[len] = 0;
|
|
#if defined(BB_FEATURE_CLEAN_UP) && defined(BB_FEATURE_SH_TAB_COMPLETION)
|
|
input_tab(0); /* strong free */
|
|
#endif
|
|
#if defined(BB_FEATURE_BASH_STYLE_PROMT)
|
|
free(cmdedit_prompt);
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
|
|
/* 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_SH_COMMAND_EDITING */
|
|
|
|
|
|
#ifdef TEST
|
|
|
|
unsigned int shell_context;
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
char buff[BUFSIZ];
|
|
char *prompt =
|
|
#if defined(BB_FEATURE_BASH_STYLE_PROMT)
|
|
"\\[\\033[32;1m\\]\\u@\\[\\033[33;1m\\]\\h:\
|
|
\\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] \
|
|
\\!\\[\\033[36;1m\\]\\$ \\[\\033[0m\\]";
|
|
#else
|
|
"% ";
|
|
#endif
|
|
|
|
shell_context = 1;
|
|
do {
|
|
cmdedit_read_input(prompt, buff);
|
|
printf("*** cmdedit_read_input() returned line =%s=\n", buff);
|
|
} while (shell_context);
|
|
printf("*** cmdedit_read_input() detect ^C\n");
|
|
return 0;
|
|
}
|
|
|
|
#endif /* TEST */
|