/* vi: set sw=4 ts=4: */
/*
- * Termios command line History and Editting for NetBSD sh (ash)
- * Copyright (c) 1999
- * Main code: Adam Rogoyski <rogoyski@cs.utexas.edu>
- * Etc: Dave Cinege <dcinege@psychosis.com>
- * Adjusted for busybox: Erik Andersen <andersee@debian.org>
+ * Termios command line History and Editing.
*
- * You may use this code as you wish, so long as the original author(s)
- * are attributed in any redistributions of the source code.
- * This code is 'as is' with no warranty.
- * This code may safely be consumed by a BSD or GPL license.
+ * Copyright (c) 1986-2003 may safely be consumed by a BSD or GPL license.
+ * Written by: Vladimir Oleynik <dzo@simtreas.ru>
+ *
+ * Used ideas:
+ * Adam Rogoyski <rogoyski@cs.utexas.edu>
+ * Dave Cinege <dcinege@psychosis.com>
+ * Jakub Jelinek (c) 1995
+ * Erik Andersen <andersen@codepoet.org> (Majorly adjusted for busybox)
*
- * v 0.5 19990328 Initial release
+ * This code is 'as is' with no warranty.
*
- * Future plans: Simple file and path name completion. (like BASH)
*
*/
need to be added. This version was created on Debian GNU/Linux 2.x.
Delete, Backspace, Home, End, and the arrow keys were tested
to work in an Xterm and console. Ctrl-A also works as Home.
- Ctrl-E also works as End. The binary size increase is <3K.
+ Ctrl-E also works as End.
- Editting will not display correctly for lines greater then the
- terminal width. (more then one line.) However, history will.
+ Small bugs (simple effect):
+ - not true viewing if terminal size (x*y symbols) less
+ size (prompt + editor`s line + 2 symbols)
+ - not true viewing if length prompt less terminal width
*/
-#include "internal.h"
-#ifdef BB_FEATURE_SH_COMMAND_EDITING
+#include "busybox.h"
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
-#include <termio.h>
+#include <sys/ioctl.h>
#include <ctype.h>
#include <signal.h>
+#include <limits.h>
+
+#include "../shell/cmdedit.h"
+
+
+#ifdef CONFIG_LOCALE_SUPPORT
+#define Isprint(c) isprint((c))
+#else
+#define Isprint(c) ( (c) >= ' ' && (c) != ((unsigned char)'\233') )
+#endif
+
+#ifdef TEST
+
+/* pretect redefined for test */
+#undef CONFIG_FEATURE_COMMAND_EDITING
+#undef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+#undef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
+#undef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+#undef CONFIG_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
+
+#endif /* TEST */
+
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+#include <dirent.h>
+#include <sys/stat.h>
+#endif
+#ifdef CONFIG_FEATURE_COMMAND_EDITING
-#define MAX_HISTORY 15 /* Maximum length of the linked list for the command line history */
+#if defined(CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION) || defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
+#define CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+#endif
+
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+#include "pwd_.h"
+#endif /* advanced FEATURES */
+
+
+/* Maximum length of the linked list for the command line history */
+#ifndef CONFIG_FEATURE_COMMAND_HISTORY
+#define MAX_HISTORY 15
+#else
+#define MAX_HISTORY CONFIG_FEATURE_COMMAND_HISTORY
+#endif
-#define ESC 27
-#define DEL 127
-#define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0)
-#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
+#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
-static struct history *his_front = NULL; /* First element in command line list */
-static struct history *his_end = NULL; /* Last element in command line list */
-static struct termio old_term, new_term; /* Current termio and the previous termio before starting ash */
+#include <termios.h>
+#define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
+#define getTermSettings(fd,argp) tcgetattr(fd, argp);
-static int history_counter = 0; /* Number of commands in history list */
-static int reset_term = 0; /* Set to true if the terminal needs to be reset upon exit */
-char *parsenextc; /* copy of parsefile->nextc */
+/* Current termio and the previous termio before starting sh */
+static struct termios initial_settings, new_settings;
-struct history {
- char *s;
- struct history *p;
- struct history *n;
+
+static
+volatile int cmdedit_termw = 80; /* actual terminal width */
+static
+volatile int handlers_sets = 0; /* Set next bites: */
+
+enum {
+ SET_ATEXIT = 1, /* when atexit() has been called
+ and get euid,uid,gid to fast compare */
+ SET_WCHG_HANDLERS = 2, /* winchg signal handler */
+ SET_RESET_TERM = 4, /* if the terminal needs to be reset upon exit */
};
-/* Version of write which resumes after a signal is caught. */
-int xwrite(int fd, char *buf, int nbytes)
+static int cmdedit_x; /* real x terminal position */
+static int cmdedit_y; /* pseudoreal y terminal position */
+static int cmdedit_prmt_len; /* lenght prompt without colores string */
+
+static int cursor; /* required global for signal handler */
+static int len; /* --- "" - - "" - -"- --""-- --""--- */
+static char *command_ps; /* --- "" - - "" - -"- --""-- --""--- */
+static
+#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT
+ const
+#endif
+char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
+
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+static char *user_buf = "";
+static char *home_pwd_buf = "";
+static int my_euid;
+#endif
+
+#ifdef CONFIG_FEATURE_SH_FANCY_PROMPT
+static char *hostname_buf;
+static int num_ok_lines = 1;
+#endif
+
+
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+
+#ifndef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+static int my_euid;
+#endif
+
+static int my_uid;
+static int my_gid;
+
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
+
+static void cmdedit_setwidth(int w, int redraw_flg);
+
+static void win_changed(int nsig)
{
- int ntry;
- int i;
- int n;
+ static sighandler_t previous_SIGWINCH_handler; /* for reset */
- n = nbytes;
- ntry = 0;
- for (;;) {
- i = write(fd, buf, n);
- if (i > 0) {
- if ((n -= i) <= 0)
- return nbytes;
- buf += i;
- ntry = 0;
- } else if (i == 0) {
- if (++ntry > 10)
- return nbytes - n;
- } else if (errno != EINTR) {
- return -1;
+ /* emulate || signal call */
+ if (nsig == -SIGWINCH || nsig == SIGWINCH) {
+ int width = 0;
+ get_terminal_width_height(0, &width, NULL);
+ cmdedit_setwidth(width, nsig == SIGWINCH);
+ }
+ /* Unix not all standart in recall signal */
+
+ if (nsig == -SIGWINCH) /* save previous handler */
+ previous_SIGWINCH_handler = signal(SIGWINCH, win_changed);
+ else if (nsig == SIGWINCH) /* signaled called handler */
+ signal(SIGWINCH, win_changed); /* set for next call */
+ else /* nsig == 0 */
+ /* set previous handler */
+ signal(SIGWINCH, previous_SIGWINCH_handler); /* reset */
+}
+
+static void cmdedit_reset_term(void)
+{
+ if ((handlers_sets & SET_RESET_TERM) != 0) {
+/* sparc and other have broken termios support: use old termio handling. */
+ setTermSettings(STDIN_FILENO, (void *) &initial_settings);
+ handlers_sets &= ~SET_RESET_TERM;
+ }
+ if ((handlers_sets & SET_WCHG_HANDLERS) != 0) {
+ /* reset SIGWINCH handler to previous (default) */
+ win_changed(0);
+ handlers_sets &= ~SET_WCHG_HANDLERS;
+ }
+ fflush(stdout);
+}
+
+
+/* special for recount position for scroll and remove terminal margin effect */
+static void cmdedit_set_out_char(int next_char)
+{
+
+ int c = (int)((unsigned char) command_ps[cursor]);
+
+ if (c == 0)
+ c = ' '; /* destroy end char? */
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+ if (!Isprint(c)) { /* Inverse put non-printable characters */
+ if (c >= 128)
+ c -= 128;
+ if (c < ' ')
+ c += '@';
+ if (c == 127)
+ c = '?';
+ printf("\033[7m%c\033[0m", c);
+ } else
+#endif
+ putchar(c);
+ if (++cmdedit_x >= cmdedit_termw) {
+ /* terminal is scrolled down */
+ cmdedit_y++;
+ cmdedit_x = 0;
+
+ if (!next_char)
+ next_char = ' ';
+ /* destroy "(auto)margin" */
+ putchar(next_char);
+ putchar('\b');
+ }
+ cursor++;
+}
+
+/* Move to end line. Bonus: rewrite line from cursor */
+static void input_end(void)
+{
+ while (cursor < len)
+ cmdedit_set_out_char(0);
+}
+
+/* Go to the next line */
+static void goto_new_line(void)
+{
+ input_end();
+ if (cmdedit_x)
+ putchar('\n');
+}
+
+
+static inline void out1str(const char *s)
+{
+ if ( s )
+ fputs(s, stdout);
+}
+
+static inline void beep(void)
+{
+ putchar('\007');
+}
+
+/* Move back one character */
+/* special for slow terminal */
+static void input_backward(int num)
+{
+ if (num > cursor)
+ num = cursor;
+ cursor -= num; /* new cursor (in command, not terminal) */
+
+ if (cmdedit_x >= num) { /* no to up line */
+ cmdedit_x -= num;
+ if (num < 4)
+ while (num-- > 0)
+ putchar('\b');
+
+ else
+ printf("\033[%dD", num);
+ } else {
+ int count_y;
+
+ if (cmdedit_x) {
+ putchar('\r'); /* back to first terminal pos. */
+ num -= cmdedit_x; /* set previous backward */
}
+ count_y = 1 + num / cmdedit_termw;
+ printf("\033[%dA", count_y);
+ cmdedit_y -= count_y;
+ /* require forward after uping */
+ cmdedit_x = cmdedit_termw * count_y - num;
+ printf("\033[%dC", cmdedit_x); /* set term cursor */
}
}
+static void put_prompt(void)
+{
+ out1str(cmdedit_prompt);
+ cmdedit_x = cmdedit_prmt_len; /* count real x terminal position */
+ cursor = 0;
+ cmdedit_y = 0; /* new quasireal y */
+}
-/* Version of ioctl that retries after a signal is caught. */
-int xioctl(int fd, unsigned long request, char *arg)
+#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT
+static void parse_prompt(const char *prmt_ptr)
{
- int i;
+ cmdedit_prompt = prmt_ptr;
+ cmdedit_prmt_len = strlen(prmt_ptr);
+ put_prompt();
+}
+#else
+static void parse_prompt(const char *prmt_ptr)
+{
+ int prmt_len = 0;
+ size_t cur_prmt_len = 0;
+ char flg_not_length = '[';
+ char *prmt_mem_ptr = xcalloc(1, 1);
+ char *pwd_buf = xgetcwd(0);
+ char buf2[PATH_MAX + 1];
+ char buf[2];
+ char c;
+ char *pbuf;
+
+ if (!pwd_buf) {
+ pwd_buf=(char *)bb_msg_unknown;
+ }
- while ((i = ioctl(fd, request, arg)) == -1 && errno == EINTR);
- return i;
+ while (*prmt_ptr) {
+ pbuf = buf;
+ pbuf[1] = 0;
+ c = *prmt_ptr++;
+ if (c == '\\') {
+ const char *cp = prmt_ptr;
+ int l;
+
+ c = bb_process_escape_sequence(&prmt_ptr);
+ if(prmt_ptr==cp) {
+ if (*cp == 0)
+ break;
+ c = *prmt_ptr++;
+ switch (c) {
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+ case 'u':
+ pbuf = user_buf;
+ break;
+#endif
+ case 'h':
+ pbuf = hostname_buf;
+ if (pbuf == 0) {
+ pbuf = xcalloc(256, 1);
+ if (gethostname(pbuf, 255) < 0) {
+ strcpy(pbuf, "?");
+ } else {
+ char *s = strchr(pbuf, '.');
+
+ if (s)
+ *s = 0;
+ }
+ hostname_buf = pbuf;
+ }
+ break;
+ case '$':
+ c = my_euid == 0 ? '#' : '$';
+ break;
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+ case 'w':
+ pbuf = pwd_buf;
+ l = strlen(home_pwd_buf);
+ if (home_pwd_buf[0] != 0 &&
+ strncmp(home_pwd_buf, pbuf, l) == 0 &&
+ (pbuf[l]=='/' || pbuf[l]=='\0') &&
+ strlen(pwd_buf+l)<PATH_MAX) {
+ pbuf = buf2;
+ *pbuf = '~';
+ strcpy(pbuf+1, pwd_buf+l);
+ }
+ break;
+#endif
+ case 'W':
+ pbuf = pwd_buf;
+ cp = strrchr(pbuf,'/');
+ if ( (cp != NULL) && (cp != pbuf) )
+ pbuf += (cp-pbuf)+1;
+ break;
+ case '!':
+ snprintf(pbuf = buf2, sizeof(buf2), "%d", num_ok_lines);
+ break;
+ case 'e': case 'E': /* \e \E = \033 */
+ c = '\033';
+ break;
+ case 'x': case 'X':
+ for (l = 0; l < 3;) {
+ int h;
+ buf2[l++] = *prmt_ptr;
+ buf2[l] = 0;
+ h = strtol(buf2, &pbuf, 16);
+ if (h > UCHAR_MAX || (pbuf - buf2) < l) {
+ l--;
+ break;
+ }
+ prmt_ptr++;
+ }
+ buf2[l] = 0;
+ c = (char)strtol(buf2, 0, 16);
+ if(c==0)
+ c = '?';
+ pbuf = buf;
+ break;
+ case '[': case ']':
+ if (c == flg_not_length) {
+ flg_not_length = flg_not_length == '[' ? ']' : '[';
+ continue;
+ }
+ break;
+ }
+ }
+ }
+ if(pbuf == buf)
+ *pbuf = c;
+ cur_prmt_len = strlen(pbuf);
+ prmt_len += cur_prmt_len;
+ if (flg_not_length != ']')
+ cmdedit_prmt_len += cur_prmt_len;
+ prmt_mem_ptr = strcat(xrealloc(prmt_mem_ptr, prmt_len+1), pbuf);
+ }
+ if(pwd_buf!=(char *)bb_msg_unknown)
+ free(pwd_buf);
+ cmdedit_prompt = prmt_mem_ptr;
+ put_prompt();
}
+#endif
-void cmdedit_reset_term(void)
+/* draw prompt, editor line, and clear tail */
+static void redraw(int y, int back_cursor)
{
- if (reset_term)
- xioctl(fileno(stdin), TCSETA, (void *) &old_term);
+ if (y > 0) /* up to start y */
+ printf("\033[%dA", y);
+ putchar('\r');
+ put_prompt();
+ input_end(); /* rewrite */
+ printf("\033[J"); /* destroy tail after cursor */
+ input_backward(back_cursor);
}
-void prepareToDie(int sig)
+#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI
+#define DELBUFSIZ 128
+static char *delbuf; /* a (malloced) place to store deleted characters */
+static char *delp;
+static char newdelflag; /* whether delbuf should be reused yet */
+#endif
+
+/* Delete the char in front of the cursor, optionally saving it
+ * for later putback */
+static void input_delete(int save)
{
- cmdedit_reset_term();
- fprintf(stdout, "\n");
- exit(TRUE);
+ int j = cursor;
+
+ if (j == len)
+ return;
+
+#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI
+ if (save) {
+ if (newdelflag) {
+ if (!delbuf)
+ delbuf = malloc(DELBUFSIZ);
+ /* safe if malloc fails */
+ delp = delbuf;
+ newdelflag = 0;
+ }
+ if (delbuf && (delp - delbuf < DELBUFSIZ))
+ *delp++ = command_ps[j];
+ }
+#endif
+
+ strcpy(command_ps + j, command_ps + j + 1);
+ len--;
+ input_end(); /* rewrite new line */
+ cmdedit_set_out_char(0); /* destroy end char */
+ input_backward(cursor - j); /* back to old pos cursor */
}
-void input_home(int outputFd, int *cursor)
-{ /* Command line input routines */
- while (*cursor > 0) {
- xwrite(outputFd, "\b", 1);
- --*cursor;
+#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI
+static void put(void)
+{
+ int ocursor, j = delp - delbuf;
+ if (j == 0)
+ return;
+ ocursor = cursor;
+ /* open hole and then fill it */
+ memmove(command_ps + cursor + j, command_ps + cursor, len - cursor + 1);
+ strncpy(command_ps + cursor, delbuf, j);
+ len += j;
+ input_end(); /* rewrite new line */
+ input_backward(cursor-ocursor-j+1); /* at end of new text */
+}
+#endif
+
+/* Delete the char in back of the cursor */
+static void input_backspace(void)
+{
+ if (cursor > 0) {
+ input_backward(1);
+ input_delete(0);
}
}
-void input_delete(int outputFd, int cursor)
+/* Move forward one character */
+static void input_forward(void)
{
- int j = 0;
+ if (cursor < len)
+ cmdedit_set_out_char(command_ps[cursor + 1]);
+}
- memmove(parsenextc + cursor, parsenextc + cursor + 1,
- BUFSIZ - cursor - 1);
- for (j = cursor; j < (BUFSIZ - 1); j++) {
- if (!*(parsenextc + j))
+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);
+ }
+ }
+}
+
+static void cmdedit_init(void)
+{
+ cmdedit_prmt_len = 0;
+ 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 CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+ struct passwd *entry;
+
+ my_euid = geteuid();
+ entry = getpwuid(my_euid);
+ if (entry) {
+ user_buf = bb_xstrdup(entry->pw_name);
+ home_pwd_buf = bb_xstrdup(entry->pw_dir);
+ }
+#endif
+
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+
+#ifndef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+ my_euid = geteuid();
+#endif
+ my_uid = getuid();
+ my_gid = getgid();
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
+ handlers_sets |= SET_ATEXIT;
+ atexit(cmdedit_reset_term); /* be sure to do this only once */
+ }
+}
+
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+
+static char **matches;
+static int num_matches;
+static char *add_char_to_match;
+
+static void add_match(char *matched, int add_char)
+{
+ int nm = num_matches;
+ int nm1 = nm + 1;
+
+ matches = xrealloc(matches, nm1 * sizeof(char *));
+ add_char_to_match = xrealloc(add_char_to_match, nm1);
+ matches[nm] = matched;
+ add_char_to_match[nm] = (char)add_char;
+ num_matches++;
+}
+
+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 CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
+
+static void username_tab_completion(char *ud, char *with_shash_flg)
+{
+ struct passwd *entry;
+ int userlen;
+
+ ud++; /* ~user/... to user/... */
+ userlen = strlen(ud);
+
+ if (with_shash_flg) { /* "~/..." or "~user/..." */
+ char *sav_ud = ud - 1;
+ char *home = 0;
+ char *temp;
+
+ 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);
+ }
+ }
+ } else {
+ /* "~[^/]*" */
+ setpwent();
+
+ while ((entry = getpwent()) != NULL) {
+ /* Null usernames should result in all users as possible completions. */
+ if ( /*!userlen || */ !strncmp(ud, entry->pw_name, userlen)) {
+ add_match(bb_xasprintf("~%s", entry->pw_name), '/');
+ }
+ }
+
+ endpwent();
+ }
+}
+#endif /* CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION */
+
+enum {
+ FIND_EXE_ONLY = 0,
+ FIND_DIR_ONLY = 1,
+ FIND_FILE_ONLY = 2,
+};
+
+#ifdef CONFIG_ASH
+const char *cmdedit_path_lookup;
+#else
+#define cmdedit_path_lookup getenv("PATH")
+#endif
+
+static int path_parse(char ***p, int flags)
+{
+ int npth;
+ const char *tmp;
+ const char *pth;
+
+ /* if not setenv PATH variable, to search cur dir "." */
+ if (flags != FIND_EXE_ONLY || (pth = cmdedit_path_lookup) == 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;
- else
- xwrite(outputFd, (parsenextc + j), 1);
}
- xwrite(outputFd, " \b", 2);
+ *p = xmalloc(npth * sizeof(char *));
+
+ tmp = pth;
+ (*p)[0] = bb_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] */
+ }
- while (j-- > cursor)
- xwrite(outputFd, "\b", 1);
+ return npth;
}
+static char *add_quote_for_spec_chars(char *found, int add)
+{
+ int l = 0;
+ char *s = xmalloc((strlen(found) + 1) * 2);
+
+ while (*found) {
+ if (strchr(" `\"#$%^&*()=+{}[]:;\'|\\<>", *found))
+ s[l++] = '\\';
+ s[l++] = *found++;
+ }
+ if(add)
+ s[l++] = (char)add;
+ s[l] = 0;
+ return s;
+}
-void input_end(int outputFd, int *cursor, int len)
+static void exe_n_cwd_tab_completion(char *command, int type)
{
- while (*cursor < len) {
- xwrite(outputFd, "\033[C", 3);
- ++*cursor;
+ DIR *dir;
+ struct dirent *next;
+ char dirbuf[BUFSIZ];
+ struct stat st;
+ char *path1[1];
+ char **paths = path1;
+ int npaths;
+ int i;
+ char *found;
+ 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 CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
+ if (dirbuf[0] == '~') /* ~/... or ~user/... */
+ username_tab_completion(dirbuf, dirbuf);
+#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) {
+ char *str_found = next->d_name;
+ int add_chr = 0;
+
+ /* 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;
+ }
+ found = concat_path_file(paths[i], str_found);
+ /* hmm, remover in progress? */
+ if (stat(found, &st) < 0)
+ goto cont;
+ /* find with dirs ? */
+ if (paths[i] != dirbuf)
+ strcpy(found, next->d_name); /* only name */
+ if (S_ISDIR(st.st_mode)) {
+ /* name is directory */
+ char *e = found + strlen(found) - 1;
+
+ add_chr = '/';
+ if(*e == '/')
+ *e = '\0';
+ } else {
+ /* not put found file if search only dirs for cd */
+ if (type == FIND_DIR_ONLY)
+ goto cont;
+ if (type == FIND_FILE_ONLY ||
+ (type == FIND_EXE_ONLY && is_execute(&st)))
+ add_chr = ' ';
+ }
+ /* Add it to the list */
+ add_match(found, add_chr);
+ continue;
+cont:
+ free(found);
+ }
+ closedir(dir);
+ }
+ if (paths != path1) {
+ free(paths[0]); /* allocated memory only in first member */
+ free(paths);
}
}
-void input_backspace(int outputFd, int *cursor, int *len)
+#define QUOT (UCHAR_MAX+1)
+
+#define collapse_pos(is, in) { \
+ memmove(int_buf+(is), int_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); \
+ memmove(pos_buf+(is), pos_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); }
+
+static int find_match(char *matchBuf, int *len_with_quotes)
{
- int j = 0;
+ 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;
+ }
- if (*cursor > 0) {
- xwrite(outputFd, "\b \b", 3);
- --*cursor;
- memmove(parsenextc + *cursor, parsenextc + *cursor + 1,
- BUFSIZ - *cursor + 1);
+ /* 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 CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+ if (matchBuf[i] == '\t') /* algorithm equivalent */
+ int_buf[j] = ' ' | QUOT;
+#endif
+ }
+#ifdef CONFIG_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;
+ }
- for (j = *cursor; j < (BUFSIZ - 1); j++) {
- if (!*(parsenextc + j))
+ /* 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
- xwrite(outputFd, (parsenextc + j), 1);
+ 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
+ && matchBuf[pos_buf[0]]=='c'
+ && matchBuf[pos_buf[1]]=='d' )
+ 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++;
+ }
+
+ /* set only match and destroy quotes */
+ j = 0;
+ for (c = 0; pos_buf[i] >= 0; i++) {
+ matchBuf[c++] = matchBuf[pos_buf[i]];
+ j = pos_buf[i] + 1;
+ }
+ matchBuf[c] = 0;
+ /* old lenght matchBuf with quotes symbols */
+ *len_with_quotes = j ? j - pos_buf[0] : 0;
+
+ return command_mode;
+}
+
+/*
+ display by column original ideas from ls applet,
+ very optimize by my :)
+*/
+static void showfiles(void)
+{
+ int ncols, row;
+ int column_width = 0;
+ int nfiles = num_matches;
+ int nrows = nfiles;
+ char str_add_chr[2];
+ int l;
+
+ /* find the longest file name- use that as the column width */
+ for (row = 0; row < nrows; row++) {
+ l = strlen(matches[row]);
+ if(add_char_to_match[row])
+ l++;
+ if (column_width < l)
+ column_width = l;
+ }
+ column_width += 2; /* min space for columns */
+ ncols = cmdedit_termw / column_width;
+
+ if (ncols > 1) {
+ nrows /= ncols;
+ if(nfiles % ncols)
+ nrows++; /* round up fractionals */
+ } else {
+ ncols = 1;
+ }
+ str_add_chr[1] = 0;
+ for (row = 0; row < nrows; row++) {
+ int n = row;
+ int nc;
+ int acol;
+
+ for(nc = 1; nc < ncols && n+nrows < nfiles; n += nrows, nc++) {
+ str_add_chr[0] = add_char_to_match[n];
+ acol = str_add_chr[0] ? column_width - 1 : column_width;
+ printf("%s%s", matches[n], str_add_chr);
+ l = strlen(matches[n]);
+ while(l < acol) {
+ putchar(' ');
+ l++;
+ }
}
+ str_add_chr[0] = add_char_to_match[n];
+ printf("%s%s\n", matches[n], str_add_chr);
+ }
+}
+
+
+static void input_tab(int *lastWasTab)
+{
+ /* Do TAB completion */
+ if (lastWasTab == 0) { /* free all memory */
+ if (matches) {
+ while (num_matches > 0)
+ free(matches[--num_matches]);
+ free(matches);
+ matches = (char **) NULL;
+ free(add_char_to_match);
+ add_char_to_match = NULL;
+ }
+ return;
+ }
+ if (! *lastWasTab) {
+
+ char *tmp, *tmp1;
+ int len_found;
+ char matchBuf[BUFSIZ];
+ int find_type;
+ int recalc_pos;
+
+ *lastWasTab = TRUE; /* flop trigger */
- xwrite(outputFd, " \b", 2);
+ /* Make a local copy of the string -- up
+ * to the position of the cursor */
+ tmp = strncpy(matchBuf, command_ps, cursor);
+ tmp[cursor] = 0;
- while (j-- > *cursor)
- xwrite(outputFd, "\b", 1);
+ find_type = find_match(matchBuf, &recalc_pos);
- --*len;
+ /* Free up any memory already allocated */
+ input_tab(0);
+
+#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. */
+
+ if (matchBuf[0] == '~' && strchr(matchBuf, '/') == 0)
+ username_tab_completion(matchBuf, NULL);
+ if (!matches)
+#endif
+ /* Try to match any executable in our path and everything
+ * in the current working directory that matches. */
+ exe_n_cwd_tab_completion(matchBuf, find_type);
+ /* Remove duplicate found and sort */
+ if(matches) {
+ int i, j, n, srt;
+ /* bubble */
+ n = num_matches;
+ for(i=0; i<(n-1); i++)
+ for(j=i+1; j<n; j++)
+ if(matches[i]!=NULL && matches[j]!=NULL) {
+ srt = strcmp(matches[i], matches[j]);
+ if(srt == 0) {
+ free(matches[j]);
+ matches[j]=0;
+ } else if(srt > 0) {
+ tmp1 = matches[i];
+ matches[i] = matches[j];
+ matches[j] = tmp1;
+ srt = add_char_to_match[i];
+ add_char_to_match[i] = add_char_to_match[j];
+ add_char_to_match[j] = srt;
+ }
+ }
+ j = n;
+ n = 0;
+ for(i=0; i<j; i++)
+ if(matches[i]) {
+ matches[n]=matches[i];
+ add_char_to_match[n]=add_char_to_match[i];
+ n++;
+ }
+ num_matches = n;
+ }
+ /* Did we find exactly one match? */
+ if (!matches || num_matches > 1) {
+
+ beep();
+ if (!matches)
+ return; /* not found */
+ /* find minimal match */
+ tmp1 = bb_xstrdup(matches[0]);
+ for (tmp = tmp1; *tmp; tmp++)
+ for (len_found = 1; len_found < num_matches; len_found++)
+ if (matches[len_found][(tmp - tmp1)] != *tmp) {
+ *tmp = 0;
+ break;
+ }
+ if (*tmp1 == 0) { /* have unique */
+ free(tmp1);
+ return;
+ }
+ tmp = add_quote_for_spec_chars(tmp1, 0);
+ free(tmp1);
+ } else { /* one match */
+ tmp = add_quote_for_spec_chars(matches[0], add_char_to_match[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 */
+ redraw(cmdedit_y, len - recalc_pos);
+ }
+ 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 sav_cursor = cursor; /* change goto_new_line() */
+
+ /* Go to the next line */
+ goto_new_line();
+ showfiles();
+ redraw(0, len - sav_cursor);
+ }
}
}
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#if MAX_HISTORY >= 1
+static void get_previous_history(void)
+{
+ if(command_ps[0] != 0 || history[cur_history] == 0) {
+ free(history[cur_history]);
+ history[cur_history] = bb_xstrdup(command_ps);
+ }
+ cur_history--;
+}
-char** username_completion_matches(char* command, int *num_matches)
+static int get_next_history(void)
{
- char **matches = (char **) NULL;
- *num_matches=0;
- fprintf(stderr, "\nin username_completion_matches\n");
- return (matches);
+ 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;
+ }
}
-#include <dirent.h>
-char** find_path_executable_n_cwd_matches(char* command, int *num_matches)
+#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
+void load_history ( const char *fromfile )
{
- char *dirName;
- char **matches = (char **) NULL;
- DIR *dir;
- struct dirent *next;
-
- matches = malloc( sizeof(char*)*50);
+ FILE *fp;
+ int hi;
- /* Stick a wildcard onto the command, for later use */
- strcat( command, "*");
+ /* cleanup old */
- /* Now wall the current directory */
- dirName = get_current_dir_name();
- dir = opendir(dirName);
- if (!dir) {
- /* Don't print an error, just shut up and return */
- *num_matches=0;
- return (matches);
+ for(hi = n_history; hi > 0; ) {
+ hi--;
+ free ( history [hi] );
}
- while ((next = readdir(dir)) != NULL) {
- /* Some quick sanity checks */
- if ((strcmp(next->d_name, "..") == 0)
- || (strcmp(next->d_name, ".") == 0)) {
- continue;
- }
- /* See if this matches */
- if (check_wildcard_match(next->d_name, command) == TRUE) {
- /* Cool, found a match. Add it to the list */
- matches[*num_matches] = malloc(strlen(next->d_name)+1);
- strcpy( matches[*num_matches], next->d_name);
- ++*num_matches;
- //matches = realloc( matches, sizeof(char*)*(*num_matches));
+ if (( fp = fopen ( fromfile, "r" ))) {
+
+ for ( hi = 0; hi < MAX_HISTORY; ) {
+ char * hl = bb_get_chomped_line_from_file(fp);
+ int l;
+
+ if(!hl)
+ break;
+ l = strlen(hl);
+ if(l >= BUFSIZ)
+ hl[BUFSIZ-1] = 0;
+ if(l == 0 || hl[0] == ' ') {
+ free(hl);
+ continue;
+ }
+ history [hi++] = hl;
}
+ fclose ( fp );
}
+ cur_history = n_history = hi;
+}
+
+void save_history ( const char *tofile )
+{
+ FILE *fp = fopen ( tofile, "w" );
+
+ if ( fp ) {
+ int i;
- return (matches);
+ for ( i = 0; i < n_history; i++ ) {
+ fprintf(fp, "%s\n", history [i]);
+ }
+ fclose ( fp );
+ }
}
#endif
+#endif
+
+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 string with full command editing (sort of like
* a mini readline).
*
* The following standard commands are not implemented:
* ESC-h -- Delete forward one word
* CTL-t -- Transpose two characters
*
- * Furthermore, the "vi" command editing keys are not implemented.
- *
- * TODO: implement TAB command completion. :)
+ * Minimalist vi-style command line editing available if configured.
+ * vi mode implemented 2005 by Paul Fox <pgf@foxharp.boston.ma.us>
*
*/
-extern int cmdedit_read_input(char* prompt, int inputFd, int outputFd,
- char command[BUFSIZ])
+
+#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI
+static int vi_mode;
+
+void setvimode ( int viflag )
{
+ vi_mode = viflag;
+}
- int nr = 0;
- int len = 0;
- int j = 0;
- int cursor = 0;
- int break_out = 0;
- int ret = 0;
- int lastWasTab = FALSE;
- char c = 0;
- struct history *hp = his_end;
-
- memset(command, 0, sizeof(command));
- parsenextc = command;
- if (!reset_term) {
- xioctl(inputFd, TCGETA, (void *) &old_term);
- memcpy(&new_term, &old_term, sizeof(struct termio));
-
- new_term.c_cc[VMIN] = 1;
- new_term.c_cc[VTIME] = 0;
- new_term.c_lflag &= ~ICANON; /* unbuffered input */
- new_term.c_lflag &= ~ECHO;
- xioctl(inputFd, TCSETA, (void *) &new_term);
- reset_term = 1;
- } else {
- xioctl(inputFd, TCSETA, (void *) &new_term);
+static void
+vi_Word_motion(char *command, int eat)
+{
+ while (cursor < len && !isspace(command[cursor]))
+ input_forward();
+ if (eat) while (cursor < len && isspace(command[cursor]))
+ input_forward();
+}
+
+static void
+vi_word_motion(char *command, int eat)
+{
+ if (isalnum(command[cursor]) || command[cursor] == '_') {
+ while (cursor < len &&
+ (isalnum(command[cursor+1]) ||
+ command[cursor+1] == '_'))
+ input_forward();
+ } else if (ispunct(command[cursor])) {
+ while (cursor < len &&
+ (ispunct(command[cursor+1])))
+ input_forward();
+ }
+
+ if (cursor < len)
+ input_forward();
+
+ if (eat && cursor < len && isspace(command[cursor]))
+ while (cursor < len && isspace(command[cursor]))
+ input_forward();
+}
+
+static void
+vi_End_motion(char *command)
+{
+ input_forward();
+ while (cursor < len && isspace(command[cursor]))
+ input_forward();
+ while (cursor < len-1 && !isspace(command[cursor+1]))
+ input_forward();
+}
+
+static void
+vi_end_motion(char *command)
+{
+ if (cursor >= len-1)
+ return;
+ input_forward();
+ while (cursor < len-1 && isspace(command[cursor]))
+ input_forward();
+ if (cursor >= len-1)
+ return;
+ if (isalnum(command[cursor]) || command[cursor] == '_') {
+ while (cursor < len-1 &&
+ (isalnum(command[cursor+1]) ||
+ command[cursor+1] == '_'))
+ input_forward();
+ } else if (ispunct(command[cursor])) {
+ while (cursor < len-1 &&
+ (ispunct(command[cursor+1])))
+ input_forward();
+ }
+}
+
+static void
+vi_Back_motion(char *command)
+{
+ while (cursor > 0 && isspace(command[cursor-1]))
+ input_backward(1);
+ while (cursor > 0 && !isspace(command[cursor-1]))
+ input_backward(1);
+}
+
+static void
+vi_back_motion(char *command)
+{
+ if (cursor <= 0)
+ return;
+ input_backward(1);
+ while (cursor > 0 && isspace(command[cursor]))
+ input_backward(1);
+ if (cursor <= 0)
+ return;
+ if (isalnum(command[cursor]) || command[cursor] == '_') {
+ while (cursor > 0 &&
+ (isalnum(command[cursor-1]) ||
+ command[cursor-1] == '_'))
+ input_backward(1);
+ } else if (ispunct(command[cursor])) {
+ while (cursor > 0 &&
+ (ispunct(command[cursor-1])))
+ input_backward(1);
}
+}
+#endif
- memset(parsenextc, 0, BUFSIZ);
+/*
+ * the emacs and vi modes share much of the code in the big
+ * command loop. commands entered when in vi's command mode (aka
+ * "escape mode") get an extra bit added to distinguish them --
+ * this keeps them from being self-inserted. this clutters the
+ * big switch a bit, but keeps all the code in one place.
+ */
+
+#define vbit 0x100
+
+/* leave out the "vi-mode"-only case labels if vi editing isn't
+ * configured. */
+#define vi_case(caselabel) USE_FEATURE_COMMAND_EDITING(caselabel)
+
+/* convert uppercase ascii to equivalent control char, for readability */
+#define CNTRL(uc_char) ((uc_char) - 0x40)
+
+
+int cmdedit_read_input(char *prompt, char command[BUFSIZ])
+{
+
+ int break_out = 0;
+ int lastWasTab = FALSE;
+ unsigned char c;
+ unsigned int ic;
+#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI
+ unsigned int prevc;
+ int vi_cmdmode = 0;
+#endif
+ /* prepare before init handlers */
+ cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
+ len = 0;
+ command_ps = command;
+
+ 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);
+ /* 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;
+ command[0] = 0;
+
+ setTermSettings(0, (void *) &new_settings);
+ handlers_sets |= SET_RESET_TERM;
+
+ /* Now initialize things */
+ cmdedit_init();
+ /* Print out the command prompt */
+ parse_prompt(prompt);
while (1) {
- if ((ret = read(inputFd, &c, 1)) < 1)
- return ret;
+ fflush(stdout); /* buffered out to fast */
+
+ if (safe_read(0, &c, 1) < 1)
+ /* if we can't read input then exit */
+ goto prepare_to_die;
- fprintf(stderr, "\n\nkey=%d (%c)\n\n", c, c);
- /* Go to the next line */
- xwrite(outputFd, "\n", 1);
- /* Rewrite the prompt */
- xwrite(outputFd, prompt, strlen(prompt));
- /* Rewrite the command */
- xwrite(outputFd, parsenextc, len);
+ ic = c;
- switch (c) {
- case 1:
+#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI
+ newdelflag = 1;
+ if (vi_cmdmode)
+ ic |= vbit;
+#endif
+ switch (ic)
+ {
+ case '\n':
+ case '\r':
+ vi_case( case '\n'|vbit: )
+ vi_case( case '\r'|vbit: )
+ /* Enter */
+ goto_new_line();
+ break_out = 1;
+ break;
+ case CNTRL('A'):
+ vi_case( case '0'|vbit: )
/* Control-a -- Beginning of line */
- input_home(outputFd, &cursor);
- case 5:
- /* Control-e -- End of line */
- input_end(outputFd, &cursor, len);
+ input_backward(cursor);
break;
- case 2:
+ case CNTRL('B'):
+ vi_case( case 'h'|vbit: )
+ vi_case( case '\b'|vbit: )
+ vi_case( case DEL|vbit: )
/* Control-b -- Move back one character */
- if (cursor > 0) {
- xwrite(outputFd, "\033[D", 3);
- cursor--;
+ input_backward(1);
+ break;
+ case CNTRL('C'):
+ vi_case( case CNTRL('C')|vbit: )
+ /* Control-c -- stop gathering input */
+ goto_new_line();
+#ifndef CONFIG_ASH
+ command[0] = 0;
+ len = 0;
+ lastWasTab = FALSE;
+ put_prompt();
+#else
+ len = 0;
+ break_out = -1; /* to control traps */
+#endif
+ break;
+ case CNTRL('D'):
+ /* Control-d -- Delete one character, or exit
+ * if the len=0 and no chars to delete */
+ if (len == 0) {
+ errno = 0;
+prepare_to_die:
+#if !defined(CONFIG_ASH)
+ printf("exit");
+ goto_new_line();
+ /* cmdedit_reset_term() called in atexit */
+ exit(EXIT_SUCCESS);
+#else
+ /* to control stopped jobs */
+ len = break_out = -1;
+ break;
+#endif
+ } else {
+ input_delete(0);
}
break;
- case 6:
+ case CNTRL('E'):
+ vi_case( case '$'|vbit: )
+ /* Control-e -- End of line */
+ input_end();
+ break;
+ case CNTRL('F'):
+ vi_case( case 'l'|vbit: )
+ vi_case( case ' '|vbit: )
/* Control-f -- Move forward one character */
- if (cursor < len) {
- xwrite(outputFd, "\033[C", 3);
- cursor++;
- }
+ input_forward();
+ break;
+ case '\b':
+ case DEL:
+ /* Control-h and DEL */
+ input_backspace();
+ break;
+ case '\t':
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+ input_tab(&lastWasTab);
+#endif
break;
- case 4:
- /* Control-d -- Delete one character */
- if (cursor != len) {
- input_delete(outputFd, cursor);
- len--;
- } else if (len == 0) {
- prepareToDie(0);
- exit(0);
+ case CNTRL('K'):
+ /* Control-k -- clear to end of line */
+ *(command + cursor) = 0;
+ len = cursor;
+ printf("\033[J");
+ break;
+ case CNTRL('L'):
+ vi_case( case CNTRL('L')|vbit: )
+ /* Control-l -- clear screen */
+ printf("\033[H");
+ redraw(0, len-cursor);
+ break;
+#if MAX_HISTORY >= 1
+ case CNTRL('N'):
+ vi_case( case CNTRL('N')|vbit: )
+ vi_case( case 'j'|vbit: )
+ /* Control-n -- Get next command in history */
+ if (get_next_history())
+ goto rewrite_line;
+ break;
+ case CNTRL('P'):
+ vi_case( case CNTRL('P')|vbit: )
+ vi_case( case 'k'|vbit: )
+ /* Control-p -- Get previous command from history */
+ if (cur_history > 0) {
+ get_previous_history();
+ goto rewrite_line;
+ } else {
+ beep();
}
break;
- case 14:
- /* Control-n -- Get next command */
- if (hp && hp->n && hp->n->s) {
- free(hp->s);
- hp->s = strdup(parsenextc);
- hp = hp->n;
- goto hop;
+#endif
+ case CNTRL('U'):
+ vi_case( case CNTRL('U')|vbit: )
+ /* Control-U -- Clear line before cursor */
+ if (cursor) {
+ strcpy(command, command + cursor);
+ redraw(cmdedit_y, len -= cursor);
}
break;
- case 16:
- /* Control-p -- Get previous command */
- if (hp && hp->p) {
- free(hp->s);
- hp->s = strdup(parsenextc);
- hp = hp->p;
- goto hop;
+ case CNTRL('W'):
+ vi_case( case CNTRL('W')|vbit: )
+ /* Control-W -- Remove the last word */
+ while (cursor > 0 && isspace(command[cursor-1]))
+ input_backspace();
+ while (cursor > 0 &&!isspace(command[cursor-1]))
+ input_backspace();
+ break;
+#if CONFIG_FEATURE_COMMAND_EDITING_VI
+ case 'i'|vbit:
+ vi_cmdmode = 0;
+ break;
+ case 'I'|vbit:
+ input_backward(cursor);
+ vi_cmdmode = 0;
+ break;
+ case 'a'|vbit:
+ input_forward();
+ vi_cmdmode = 0;
+ break;
+ case 'A'|vbit:
+ input_end();
+ vi_cmdmode = 0;
+ break;
+ case 'x'|vbit:
+ input_delete(1);
+ break;
+ case 'X'|vbit:
+ if (cursor > 0) {
+ input_backward(1);
+ input_delete(1);
}
break;
- case '\t':
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+ case 'W'|vbit:
+ vi_Word_motion(command, 1);
+ break;
+ case 'w'|vbit:
+ vi_word_motion(command, 1);
+ break;
+ case 'E'|vbit:
+ vi_End_motion(command);
+ break;
+ case 'e'|vbit:
+ vi_end_motion(command);
+ break;
+ case 'B'|vbit:
+ vi_Back_motion(command);
+ break;
+ case 'b'|vbit:
+ vi_back_motion(command);
+ break;
+ case 'C'|vbit:
+ vi_cmdmode = 0;
+ /* fall through */
+ case 'D'|vbit:
+ goto clear_to_eol;
+
+ case 'c'|vbit:
+ vi_cmdmode = 0;
+ /* fall through */
+ case 'd'|vbit:
{
- /* Do TAB completion */
- static int num_matches=0;
- static char **matches = (char **) NULL;
- int pos = cursor;
-
-
- if (lastWasTab == FALSE) {
- char *tmp, *tmp1, *matchBuf;
-
- /* For now, we will not bother with trying to distinguish
- * whether the cursor is in/at a command extression -- we
- * will always try all possable matches. If you don't like
- * that then feel free to fix it.
- */
-
- /* Make a local copy of the string -- up
- * to the position of the cursor */
- matchBuf = (char *) calloc(BUFSIZ, sizeof(char));
- strncpy(matchBuf, parsenextc, cursor);
- tmp=matchBuf;
-
- /* skip past any command seperator tokens */
- while (*tmp && (tmp1=strpbrk(tmp, ";|&{(`")) != NULL) {
- tmp=++tmp1;
- /* skip any leading white space */
- while (*tmp && isspace(*tmp))
- ++tmp;
- }
-
- /* skip any leading white space */
- while (*tmp && isspace(*tmp))
- ++tmp;
-
- /* Free up any memory already allocated */
- if (matches) {
- free(matches);
- matches = (char **) NULL;
- }
-
- /* If the word starts with `~' and there is no slash in the word,
- * then try completing this word as a username. */
+ int nc, sc;
+ sc = cursor;
+ prevc = ic;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
+ if (c == (prevc & 0xff)) {
+ /* "cc", "dd" */
+ input_backward(cursor);
+ goto clear_to_eol;
+ break;
+ }
+ switch(c) {
+ case 'w':
+ case 'W':
+ case 'e':
+ case 'E':
+ switch (c) {
+ case 'w': /* "dw", "cw" */
+ vi_word_motion(command, vi_cmdmode);
+ break;
+ case 'W': /* 'dW', 'cW' */
+ vi_Word_motion(command, vi_cmdmode);
+ break;
+ case 'e': /* 'de', 'ce' */
+ vi_end_motion(command);
+ input_forward();
+ break;
+ case 'E': /* 'dE', 'cE' */
+ vi_End_motion(command);
+ input_forward();
+ break;
+ }
+ nc = cursor;
+ input_backward(cursor - sc);
+ while (nc-- > cursor)
+ input_delete(1);
+ break;
+ case 'b': /* "db", "cb" */
+ case 'B': /* implemented as B */
+ if (c == 'b')
+ vi_back_motion(command);
+ else
+ vi_Back_motion(command);
+ while (sc-- > cursor)
+ input_delete(1);
+ break;
+ case ' ': /* "d ", "c " */
+ input_delete(1);
+ break;
+ case '$': /* "d$", "c$" */
+ clear_to_eol:
+ while (cursor < len)
+ input_delete(1);
+ break;
+ }
+ }
+ break;
+ case 'p'|vbit:
+ input_forward();
+ /* fallthrough */
+ case 'P'|vbit:
+ put();
+ break;
+ case 'r'|vbit:
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
+ if (c == 0)
+ beep();
+ else {
+ *(command + cursor) = c;
+ putchar(c);
+ putchar('\b');
+ }
+ break;
+#endif /* CONFIG_FEATURE_COMMAND_EDITING_VI */
- /* FIXME -- this check is broken! */
- if (*tmp == '~' && !strchr(tmp, '/'))
- matches = username_completion_matches(tmp, &num_matches);
+ case ESC:
- /* Try to match any executable in our path and everything
- * in the current working directory that matches. */
- if (!matches)
- matches = find_path_executable_n_cwd_matches(tmp, &num_matches);
+#if CONFIG_FEATURE_COMMAND_EDITING_VI
+ if (vi_mode) {
+ /* ESC: insert mode --> command mode */
+ vi_cmdmode = 1;
+ input_backward(1);
+ break;
+ }
+#endif
+ /* escape sequence follows */
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
+ /* different vt100 emulations */
+ if (c == '[' || c == 'O') {
+ vi_case( case '['|vbit: )
+ vi_case( case 'O'|vbit: )
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
+ }
+ if (c >= '1' && c <= '9') {
+ unsigned char dummy;
- /* Don't leak memory */
- free( matchBuf);
+ if (safe_read(0, &dummy, 1) < 1)
+ goto prepare_to_die;
+ if(dummy != '~')
+ c = 0;
+ }
+ switch (c) {
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+ case '\t': /* Alt-Tab */
- /* Did we find exactly one match? */
- if (matches && num_matches==1) {
- /* write out the matched command */
- strncpy(parsenextc+pos, matches[0]+pos, strlen(matches[0])-pos);
- len=strlen(parsenextc);
- cursor=len;
- xwrite(outputFd, matches[0]+pos, strlen(matches[0])-pos);
- break;
- }
+ input_tab(&lastWasTab);
+ break;
+#endif
+#if MAX_HISTORY >= 1
+ case 'A':
+ /* Up Arrow -- Get previous command from history */
+ if (cur_history > 0) {
+ get_previous_history();
+ goto rewrite_line;
} 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;
-
- /* Go to the next line */
- xwrite(outputFd, "\n", 1);
- /* Print the list of matches */
- for (i=0,col=0; i<num_matches; i++) {
- char foo[17];
- sprintf(foo, "%-14s ", matches[i]);
- col += xwrite(outputFd, foo, strlen(foo));
- if (col > 60 && matches[i+1] != NULL) {
- xwrite(outputFd, "\n", 1);
- col = 0;
- }
- }
- /* Go to the next line */
- xwrite(outputFd, "\n", 1);
- /* Rewrite the prompt */
- xwrite(outputFd, prompt, strlen(prompt));
- /* Rewrite the command */
- xwrite(outputFd, parsenextc, len);
- /* Put the cursor back to where it used to be */
- for (cursor=len; cursor > pos; cursor--)
- xwrite(outputFd, "\b", 1);
- }
+ beep();
}
break;
- }
+ case 'B':
+ /* Down Arrow -- Get next command in history */
+ if (!get_next_history())
+ break;
+ /* Rewrite the line with the selected history item */
+rewrite_line:
+ /* change command */
+ len = strlen(strcpy(command, history[cur_history]));
+ /* redraw and go to eol (bol, in vi */
+#if CONFIG_FEATURE_COMMAND_EDITING_VI
+ redraw(cmdedit_y, vi_mode ? 9999:0);
#else
- break;
+ redraw(cmdedit_y, 0);
#endif
- case '\b':
- case DEL:
- /* Backspace */
- input_backspace(outputFd, &cursor, &len);
- break;
- case '\n':
- /* Enter */
- *(parsenextc + len++ + 1) = c;
- xwrite(outputFd, &c, 1);
- break_out = 1;
+ break;
+#endif
+ 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(0);
+ break;
+ case '1':
+ case 'H':
+ /* <Home> */
+ input_backward(cursor);
+ break;
+ case '4':
+ case 'F':
+ /* <End> */
+ input_end();
+ break;
+ default:
+ c = 0;
+ beep();
+ }
break;
- case ESC:{
- /* escape sequence follows */
- if ((ret = read(inputFd, &c, 1)) < 1)
- return ret;
-
- if (c == '[') { /* 91 */
- if ((ret = read(inputFd, &c, 1)) < 1)
- return ret;
-
- switch (c) {
- case 'A':
- /* Up Arrow -- Get previous command */
- if (hp && hp->p) {
- free(hp->s);
- hp->s = strdup(parsenextc);
- hp = hp->p;
- goto hop;
- }
- break;
- case 'B':
- /* Down Arrow -- Get next command */
- if (hp && hp->n && hp->n->s) {
- free(hp->s);
- hp->s = strdup(parsenextc);
- hp = hp->n;
- goto hop;
- }
- break;
-
- /* This is where we rewrite the line
- * using the selected history item */
- hop:
- len = strlen(parsenextc);
-
- /* return to begining of line */
- for (; cursor > 0; cursor--)
- xwrite(outputFd, "\b", 1);
-
- /* erase old command */
- for (j = 0; j < len; j++)
- xwrite(outputFd, " ", 1);
-
- /* return to begining of line */
- for (j = len; j > 0; j--)
- xwrite(outputFd, "\b", 1);
-
- memset(parsenextc, 0, BUFSIZ);
- len = strlen(parsenextc);
- /* write new command */
- strcpy(parsenextc, hp->s);
- len = strlen(hp->s);
- xwrite(outputFd, parsenextc, len);
- cursor = len;
- break;
- case 'C':
- /* Right Arrow -- Move forward one character */
- if (cursor < len) {
- xwrite(outputFd, "\033[C", 3);
- cursor++;
- }
- break;
- case 'D':
- /* Left Arrow -- Move back one character */
- if (cursor > 0) {
- xwrite(outputFd, "\033[D", 3);
- cursor--;
- }
- break;
- case '3':
- /* Delete */
- if (cursor != len) {
- input_delete(outputFd, cursor);
- len--;
- }
- break;
- //case '5': case '6': /* pgup/pgdown */
-
- case '7':
- /* rxvt home */
- case '1':
- /* Home (Ctrl-A) */
- input_home(outputFd, &cursor);
- break;
- case '8':
- /* rxvt END */
- case '4':
- /* End (Ctrl-E) */
- input_end(outputFd, &cursor, len);
- break;
- }
- if (c == '1' || c == '3' || c == '4')
- if ((ret = read(inputFd, &c, 1)) < 1)
- return ret; /* read 126 (~) */
+ default: /* If it's regular input, do the normal thing */
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+ /* Control-V -- Add non-printable symbol */
+ if (c == CNTRL('V')) {
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
+ if (c == 0) {
+ beep();
+ break;
}
- if (c == 'O') {
- /* 79 */
- if ((ret = read(inputFd, &c, 1)) < 1)
- return ret;
- switch (c) {
- case 'H':
- /* Home (xterm) */
- input_home(outputFd, &cursor);
- break;
- case 'F':
- /* End (xterm) */
- input_end(outputFd, &cursor, len);
- break;
- }
- }
- c = 0;
- break;
+ } else
+#endif
+ {
+#if CONFIG_FEATURE_COMMAND_EDITING_VI
+ if (vi_cmdmode) /* don't self-insert */
+ break;
+#endif
+ if (!Isprint(c)) /* Skip non-printable characters */
+ break;
}
- default: /* If it's regular input, do the normal thing */
-
- if (!isprint(c)) /* Skip non-printable characters */
- break;
-
- if (len >= (BUFSIZ - 2)) /* Need to leave space for enter */
+ if (len >= (BUFSIZ - 2)) /* Need to leave space for enter */
break;
len++;
- if (cursor == (len - 1)) { /* Append if at the end of the line */
- *(parsenextc + cursor) = c;
- } else { /* Insert otherwise */
- memmove(parsenextc + cursor + 1, parsenextc + cursor,
- len - cursor - 1);
-
- *(parsenextc + cursor) = c;
-
- for (j = cursor; j < len; j++)
- xwrite(outputFd, parsenextc + j, 1);
- for (; j > cursor; j--)
- xwrite(outputFd, "\033[D", 3);
+ 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);
}
- cursor++;
- xwrite(outputFd, &c, 1);
break;
}
- if (c == '\t')
- lastWasTab = TRUE;
- else
+ if (break_out) /* Enter is the command terminator, no more input. */
+ break;
+
+ if (c != '\t')
lastWasTab = FALSE;
+ }
- if (break_out) /* Enter is the command terminator, no more input. */
- break;
+ 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 */
+ if (len> 0) { /* no put empty line */
+ int i = n_history;
+
+ free(history[MAX_HISTORY]);
+ history[MAX_HISTORY] = 0;
+ /* After max history, remove the oldest command */
+ if (i >= MAX_HISTORY) {
+ free(history[0]);
+ for(i = 0; i < (MAX_HISTORY-1); i++)
+ history[i] = history[i+1];
+ }
+ history[i++] = bb_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 > 0) { /* no put empty line */
+ num_ok_lines++;
+ }
+#endif
+#endif /* MAX_HISTORY >= 1 */
+ if (break_out > 0) {
+ command[len++] = '\n'; /* set '\n' */
+ command[len] = 0;
}
+#if defined(CONFIG_FEATURE_CLEAN_UP) && defined(CONFIG_FEATURE_COMMAND_TAB_COMPLETION)
+ input_tab(0); /* strong free */
+#endif
+#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
+ free(cmdedit_prompt);
+#endif
+ cmdedit_reset_term();
+ return len;
+}
- nr = len + 1;
- xioctl(inputFd, TCSETA, (void *) &old_term);
- reset_term = 0;
- /* Handle command history log */
- if (*(parsenextc)) {
-
- struct history *h = his_end;
-
- if (!h) {
- /* No previous history */
- h = his_front = malloc(sizeof(struct history));
- h->n = malloc(sizeof(struct history));
-
- h->p = NULL;
- h->s = strdup(parsenextc);
- h->n->p = h;
- h->n->n = NULL;
- h->n->s = NULL;
- his_end = h->n;
- history_counter++;
- } else {
- /* Add a new history command */
- h->n = malloc(sizeof(struct history));
+#endif /* CONFIG_FEATURE_COMMAND_EDITING */
- h->n->p = h;
- h->n->n = NULL;
- h->n->s = NULL;
- h->s = strdup(parsenextc);
- his_end = h->n;
- /* After max history, remove the oldest command */
- if (history_counter >= MAX_HISTORY) {
+#ifdef TEST
- struct history *p = his_front->n;
+const char *bb_applet_name = "debug stuff usage";
- p->p = NULL;
- free(his_front->s);
- free(his_front);
- his_front = p;
- } else {
- history_counter++;
- }
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+#include <locale.h>
+#endif
+
+int main(int argc, char **argv)
+{
+ char buff[BUFSIZ];
+ char *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\\]";
+#else
+ "% ";
+#endif
+
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+ setlocale(LC_ALL, "");
+#endif
+ while(1) {
+ int l;
+ l = cmdedit_read_input(prompt, buff);
+ if(l > 0 && buff[l-1] == '\n') {
+ buff[l-1] = 0;
+ printf("*** cmdedit_read_input() returned line =%s=\n", buff);
+ } else {
+ break;
}
}
-
- return nr;
+ printf("*** cmdedit_read_input() detect ^D\n");
+ return 0;
}
-extern void cmdedit_init(void)
-{
- atexit(cmdedit_reset_term);
- signal(SIGINT, prepareToDie);
- signal(SIGQUIT, prepareToDie);
- signal(SIGTERM, prepareToDie);
-}
-#endif /* BB_FEATURE_SH_COMMAND_EDITING */
+#endif /* TEST */
projects / oweals / busybox.git / blobdiff