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Diffstat (limited to 'release/src/router/busybox/cmdedit.c')
-rw-r--r--release/src/router/busybox/cmdedit.c1521
1 files changed, 0 insertions, 1521 deletions
diff --git a/release/src/router/busybox/cmdedit.c b/release/src/router/busybox/cmdedit.c
deleted file mode 100644
index 16ec2f82..00000000
--- a/release/src/router/busybox/cmdedit.c
+++ /dev/null
@@ -1,1521 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Termios command line History and Editting.
- *
- * Copyright (c) 1986-2001 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 <andersee@debian.org> (Majorly adjusted for busybox)
- *
- * This code is 'as is' with no warranty.
- *
- *
- */
-
-/*
- Usage and Known bugs:
- Terminal key codes are not extensive, and more will probably
- 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.
-
- 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 <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <ctype.h>
-#include <signal.h>
-#include <limits.h>
-
-#include "busybox.h"
-
-#ifdef BB_LOCALE_SUPPORT
-#define Isprint(c) isprint((c))
-#else
-#define Isprint(c) ( (c) >= ' ' && (c) != ((unsigned char)'\233') )
-#endif
-
-#ifndef TEST
-
-#define D(x)
-
-#else
-
-#define BB_FEATURE_COMMAND_EDITING
-#define BB_FEATURE_COMMAND_TAB_COMPLETION
-#define BB_FEATURE_COMMAND_USERNAME_COMPLETION
-#define BB_FEATURE_NONPRINTABLE_INVERSE_PUT
-#define BB_FEATURE_CLEAN_UP
-
-#define D(x) x
-
-#endif /* TEST */
-
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
-#include <dirent.h>
-#include <sys/stat.h>
-#endif
-
-#ifdef BB_FEATURE_COMMAND_EDITING
-
-#ifndef BB_FEATURE_COMMAND_TAB_COMPLETION
-#undef BB_FEATURE_COMMAND_USERNAME_COMPLETION
-#endif
-
-#if defined(BB_FEATURE_COMMAND_USERNAME_COMPLETION) || defined(BB_FEATURE_SH_FANCY_PROMPT)
-#define BB_FEATURE_GETUSERNAME_AND_HOMEDIR
-#endif
-
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
-# ifndef TEST
-# include "pwd_grp/pwd.h"
-# else
-# include <pwd.h>
-# endif /* TEST */
-#endif /* advanced FEATURES */
-
-
-
-struct history {
- char *s;
- struct history *p;
- struct history *n;
-};
-
-/* Maximum length of the linked list for the command line history */
-static const int MAX_HISTORY = 15;
-
-/* First element in command line list */
-static struct history *his_front = NULL;
-
-/* Last element in command line list */
-static struct history *his_end = NULL;
-
-
-#include <termios.h>
-#define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
-#define getTermSettings(fd,argp) tcgetattr(fd, argp);
-
-/* Current termio and the previous termio before starting sh */
-static struct termios initial_settings, new_settings;
-
-
-static
-volatile int cmdedit_termw = 80; /* actual terminal width */
-static int history_counter = 0; /* Number of commands in history list */
-static
-volatile int handlers_sets = 0; /* Set next bites: */
-
-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 */
-};
-
-
-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 BB_FEATURE_SH_FANCY_PROMPT
- const
-#endif
-char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
-
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
-static char *user_buf = "";
-static char *home_pwd_buf = "";
-static int my_euid;
-#endif
-
-#ifdef BB_FEATURE_SH_FANCY_PROMPT
-static char *hostname_buf = "";
-static int num_ok_lines = 1;
-#endif
-
-
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
-
-#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
-static int my_euid;
-#endif
-
-static int my_uid;
-static int my_gid;
-
-#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
-
-/* It seems that libc5 doesn't know what a sighandler_t is... */
-#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
-typedef void (*sighandler_t) (int);
-#endif
-
-static void cmdedit_setwidth(int w, int redraw_flg);
-
-static void win_changed(int nsig)
-{
- struct winsize win = { 0, 0, 0, 0 };
- static sighandler_t previous_SIGWINCH_handler; /* for reset */
-
- /* emulate || signal call */
- if (nsig == -SIGWINCH || nsig == SIGWINCH) {
- ioctl(0, TIOCGWINSZ, &win);
- if (win.ws_col > 0) {
- cmdedit_setwidth(win.ws_col, 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(fileno(stdin), (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);
-#ifdef BB_FEATURE_CLEAN_UP
- if (his_front) {
- struct history *n;
-
- while (his_front != his_end) {
- n = his_front->n;
- free(his_front->s);
- free(his_front);
- his_front = n;
- }
- }
-#endif
-}
-
-
-/* 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 BB_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)
-{
- fputs(s, stdout);
-}
-static inline void beep(void)
-{
- putchar('\007');
-}
-
-/* Move back one charactor */
-/* 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 */
-}
-
-#ifndef BB_FEATURE_SH_FANCY_PROMPT
-static void parse_prompt(const char *prmt_ptr)
-{
- 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;
- int sub_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 *)unknown;
- }
-
- while (*prmt_ptr) {
- pbuf = buf;
- pbuf[1] = 0;
- c = *prmt_ptr++;
- if (c == '\\') {
- const char *cp = prmt_ptr;
- int l;
-
- c = process_escape_sequence(&prmt_ptr);
- if(prmt_ptr==cp) {
- if (*cp == 0)
- break;
- c = *prmt_ptr++;
- switch (c) {
-#ifdef BB_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 BB_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;
- prmt_len += strlen(pbuf);
- prmt_mem_ptr = strcat(xrealloc(prmt_mem_ptr, prmt_len+1), pbuf);
- if (flg_not_length == ']')
- sub_len++;
- }
- if(pwd_buf!=(char *)unknown)
- free(pwd_buf);
- cmdedit_prompt = prmt_mem_ptr;
- cmdedit_prmt_len = prmt_len - sub_len;
- put_prompt();
-}
-#endif
-
-
-/* draw promt, editor line, and clear tail */
-static void redraw(int y, int back_cursor)
-{
- 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);
-}
-
-/* Delete the char in front of the cursor */
-static void input_delete(void)
-{
- int j = cursor;
-
- if (j == len)
- return;
-
- strcpy(command_ps + j, command_ps + j + 1);
- len--;
- input_end(); /* rewtite new line */
- cmdedit_set_out_char(0); /* destroy end char */
- input_backward(cursor - j); /* back to old pos cursor */
-}
-
-/* Delete the char in back of the cursor */
-static void input_backspace(void)
-{
- if (cursor > 0) {
- input_backward(1);
- input_delete();
- }
-}
-
-
-/* Move forward one charactor */
-static void input_forward(void)
-{
- if (cursor < len)
- cmdedit_set_out_char(command_ps[cursor + 1]);
-}
-
-
-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 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_COMMAND_TAB_COMPLETION
-
-#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
- my_euid = geteuid();
-#endif
- my_uid = getuid();
- my_gid = getgid();
-#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
- handlers_sets |= SET_ATEXIT;
- atexit(cmdedit_reset_term); /* be sure to do this only once */
- }
-}
-
-#ifdef BB_FEATURE_COMMAND_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_COMMAND_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_COMMAND_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;
- 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_COMMAND_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) {
- 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;
- }
- 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 */
- str_found = found;
- found = concat_path_file(found, "");
- free(str_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)
- goto cont;
- 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;
-cont:
- free(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
- && 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;
-}
-
-
-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_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)
- 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);
- /* Remove duplicate found */
- if(matches) {
- int i, j;
- /* bubble */
- for(i=0; i<(num_matches-1); i++)
- for(j=i+1; j<num_matches; j++)
- if(matches[i]!=0 && matches[j]!=0 &&
- strcmp(matches[i], matches[j])==0) {
- free(matches[j]);
- matches[j]=0;
- }
- j=num_matches;
- num_matches = 0;
- for(i=0; i<j; i++)
- if(matches[i]) {
- if(!strcmp(matches[i], "./"))
- matches[i][1]=0;
- else if(!strcmp(matches[i], "../"))
- matches[i][2]=0;
- matches[num_matches++]=matches[i];
- }
- }
- /* 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 */
- redraw(cmdedit_y, len - 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_COMMAND_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.
- *
- */
-
-
-int cmdedit_read_input(char *prompt, char command[BUFSIZ])
-{
-
- int break_out = 0;
- int lastWasTab = FALSE;
- unsigned char c = 0;
- struct history *hp = his_end;
-
- /* prepare before init handlers */
- cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
- 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);
-#ifndef linux
- /* Hmm, in linux c_cc[] not parsed if set ~ICANON */
- new_settings.c_cc[VMIN] = 1;
- new_settings.c_cc[VTIME] = 0;
- /* Turn off CTRL-C, so we can trap it */
-# ifndef _POSIX_VDISABLE
-# define _POSIX_VDISABLE '\0'
-# endif
- new_settings.c_cc[VINTR] = _POSIX_VDISABLE;
-#endif
- 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) {
-
- 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;
-
- 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 */
- goto_new_line();
- command[0] = 0;
- len = 0;
- lastWasTab = FALSE;
- put_prompt();
- break;
- case 4:
- /* Control-d -- Delete one character, or exit
- * if the len=0 and no chars to delete */
- if (len == 0) {
-prepare_to_die:
-#if !defined(BB_ASH)
- printf("exit");
- goto_new_line();
- /* cmdedit_reset_term() called in atexit */
- exit(EXIT_SUCCESS);
-#else
- break_out = -1; /* for control stoped jobs */
- break;
-#endif
- } else {
- input_delete();
- }
- 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_COMMAND_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 (safe_read(0, &c, 1) < 1)
- goto prepare_to_die;
- /* different vt100 emulations */
- if (c == '[' || c == 'O') {
- if (safe_read(0, &c, 1) < 1)
- goto prepare_to_die;
- }
- switch (c) {
-#ifdef BB_FEATURE_COMMAND_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 (safe_read(0, &c, 1) < 1)
- goto prepare_to_die;
- while (c != '~');
- break;
- }
-
- default: /* If it's regular input, do the normal thing */
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
- /* Control-V -- Add non-printable symbol */
- if (c == 22) {
- if (safe_read(0, &c, 1) < 1)
- goto prepare_to_die;
- 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(0, (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_SH_FANCY_PROMPT)
- num_ok_lines++;
-#endif
- }
- if(break_out>0) {
- command[len++] = '\n'; /* set '\n' */
- command[len] = 0;
- }
-#if defined(BB_FEATURE_CLEAN_UP) && defined(BB_FEATURE_COMMAND_TAB_COMPLETION)
- input_tab(0); /* strong free */
-#endif
-#if defined(BB_FEATURE_SH_FANCY_PROMPT)
- free(cmdedit_prompt);
-#endif
- cmdedit_reset_term();
- return len;
-}
-
-
-
-#endif /* BB_FEATURE_COMMAND_EDITING */
-
-
-#ifdef TEST
-
-const char *applet_name = "debug stuff usage";
-const char *memory_exhausted = "Memory exhausted";
-
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
-#include <locale.h>
-#endif
-
-int main(int argc, char **argv)
-{
- char buff[BUFSIZ];
- char *prompt =
-#if defined(BB_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 BB_FEATURE_NONPRINTABLE_INVERSE_PUT
- setlocale(LC_ALL, "");
-#endif
- while(1) {
- int l;
- cmdedit_read_input(prompt, buff);
- l = strlen(buff);
- if(l==0)
- break;
- if(l > 0 && buff[l-1] == '\n')
- buff[l-1] = 0;
- printf("*** cmdedit_read_input() returned line =%s=\n", buff);
- }
- printf("*** cmdedit_read_input() detect ^C\n");
- return 0;
-}
-
-#endif /* TEST */