X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=cmdedit.c;h=993e83b21a05c6f595847f8704a52837dea2a9b0;hb=5165fbed639916e0fde15a827241b21981be7934;hp=d1604f1d1dc41423bcfe03bc1cfb90d135b44867;hpb=13456d1fcd0122d8464c3c3e1c356d86a56e6c08;p=oweals%2Fbusybox.git diff --git a/cmdedit.c b/cmdedit.c index d1604f1d1..993e83b21 100644 --- a/cmdedit.c +++ b/cmdedit.c @@ -1,18 +1,18 @@ +/* vi: set sw=4 ts=4: */ /* - * Termios command line History and Editting for NetBSD sh (ash) - * Copyright (c) 1999 - * Main code: Adam Rogoyski - * Etc: Dave Cinege - * Adjusted for busybox: Erik Andersen + * Termios command line History and Editting. * - * 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) 1986-2001 may safely be consumed by a BSD or GPL license. + * Written by: Vladimir Oleynik + * + * Used ideas: + * Adam Rogoyski + * Dave Cinege + * Jakub Jelinek (c) 1995 + * Erik Andersen (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) * */ @@ -22,384 +22,1531 @@ 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) */ -#include "internal.h" -#ifdef BB_FEATURE_SH_COMMAND_EDITING + +//#define TEST #include #include #include #include #include -#include +#include #include #include +#include -#include "cmdedit.h" +#ifndef TEST +#include "busybox.h" -#define MAX_HISTORY 15 /* Maximum length of the linked list for the command line history */ +#define D(x) -#define ESC 27 -#define DEL 127 +#else -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 */ +#define BB_FEATURE_SH_COMMAND_EDITING +#define BB_FEATURE_SH_TAB_COMPLETION +#define BB_FEATURE_SH_USERNAME_COMPLETION +#define BB_FEATURE_NONPRINTABLE_INVERSE_PUT +#define BB_FEATURE_BASH_STYLE_PROMT +#define BB_FEATURE_CLEAN_UP + +#define D(x) x + +#endif /* TEST */ + +#ifdef BB_FEATURE_SH_TAB_COMPLETION +#include +#include +#endif + +#ifdef BB_FEATURE_SH_COMMAND_EDITING + +#ifndef BB_FEATURE_SH_TAB_COMPLETION +#undef BB_FEATURE_SH_USERNAME_COMPLETION +#endif + +#if defined(BB_FEATURE_SH_USERNAME_COMPLETION) || defined(BB_FEATURE_BASH_STYLE_PROMT) +#define BB_FEATURE_GETUSERNAME_AND_HOMEDIR +#endif + +#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR +#ifndef TEST +#include "pwd_grp/pwd.h" +#else +#include +#endif /* TEST */ +#endif /* advanced FEATURES */ + + +#ifdef TEST +void *xrealloc(void *old, size_t size) +{ + return realloc(old, size); +} + +void *xmalloc(size_t size) +{ + return malloc(size); +} +char *xstrdup(const char *s) +{ + return strdup(s); +} + +void *xcalloc(size_t size, size_t se) +{ + return calloc(size, se); +} + +#define error_msg(s, d) fprintf(stderr, s, d) +#endif -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 */ struct history { - char *s; - struct history *p; - struct history *n; + 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; + + +/* ED: sparc termios is broken: revert back to old termio handling. */ + +#if #cpu(sparc) +# include +# define termios termio +# define setTermSettings(fd,argp) ioctl(fd,TCSETAF,argp) +# define getTermSettings(fd,argp) ioctl(fd,TCGETA,argp) +#else +# include +# define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp) +# define getTermSettings(fd,argp) tcgetattr(fd, argp); +#endif + +/* Current termio and the previous termio before starting sh */ +static struct termios initial_settings, new_settings; + + +#ifndef _POSIX_VDISABLE +#define _POSIX_VDISABLE '\0' +#endif + + +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_TERM_HANDLERS = 2, /* set many terminates signal handlers */ + SET_WCHG_HANDLERS = 4, /* winchg signal handler */ + SET_RESET_TERM = 8, /* if the terminal needs to be reset upon exit */ +}; + + +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_BASH_STYLE_PROMT + const +#endif +char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */ + +/* Link into lash to reset context to 0 on ^C and such */ +extern unsigned int shell_context; + + +#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR +static char *user_buf = ""; +static char *home_pwd_buf = ""; +static int my_euid; +#endif + +#ifdef BB_FEATURE_BASH_STYLE_PROMT +static char *hostname_buf = ""; +static int num_ok_lines = 1; +#endif + + +#ifdef BB_FEATURE_SH_TAB_COMPLETION + +#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR +static int my_euid; +#endif + +static int my_uid; +static int my_gid; + +#endif /* BB_FEATURE_SH_TAB_COMPLETION */ -/* Version of write which resumes after a signal is caught. */ -int xwrite(int fd, char *buf, int nbytes) + +static void cmdedit_setwidth(int w, int redraw_flg); + +static void win_changed(int nsig) { - int ntry; - int i; - int n; + 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 */ +} - 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; +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) { + while (his_front != his_end) { + n = his_front->n; + free(his_front->s); + free(his_front); + his_front = n; + } + } +#endif } -/* Version of ioctl that retries after a signal is caught. */ -int xioctl(int fd, unsigned long request, char *arg) +/* special for recount position for scroll and remove terminal margin effect */ +static void cmdedit_set_out_char(int next_char) { - int i; - while ((i = ioctl(fd, request, arg)) == -1 && errno == EINTR); - return i; + + int c = 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 (((unsigned char) c) >= 128) + c -= 128; + if (((unsigned char) 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); +} -void cmdedit_reset_term(void) +/* Go to the next line */ +static void goto_new_line(void) { - if (reset_term) - xioctl(fileno(stdin), TCSETA, (void *) &old_term); + input_end(); + if (cmdedit_x) + putchar('\n'); } -void gotaSignal(int sig) + +static inline void out1str(const char *s) { - cmdedit_reset_term(); - fprintf(stdout, "\n"); - exit(TRUE); + fputs(s, stdout); +} +static inline void beep(void) +{ + putchar('\007'); } -void input_home(int outputFd, int *cursor) -{ /* Command line input routines */ - while (*cursor > 0) { - xwrite(outputFd, "\b", 1); - --*cursor; - } +/* 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; +} -void input_delete(int outputFd, int cursor) +#ifdef BB_FEATURE_BASH_STYLE_PROMT +static void +add_to_prompt(char **prmt_mem_ptr, int *alm, int *prmt_len, + const char *addb) { - int j = 0; + int l = strlen(addb); + + *prmt_len += l; + if (*alm < (*prmt_len) + 1) { + *alm = (*prmt_len) + 1; + *prmt_mem_ptr = xrealloc(*prmt_mem_ptr, *alm); + } + strcat(*prmt_mem_ptr, addb); +} +#endif - memmove(parsenextc + cursor, parsenextc + cursor + 1, - BUFSIZ - cursor - 1); - for (j = cursor; j < (BUFSIZ - 1); j++) { - if (!*(parsenextc + j)) - break; - else - xwrite(outputFd, (parsenextc + j), 1); - } +static void parse_prompt(const char *prmt_ptr) +{ +#ifdef BB_FEATURE_BASH_STYLE_PROMT + int alm = strlen(prmt_ptr) + 1; /* supposedly require memory */ + int prmt_len = 0; + int sub_len = 0; + int flg_not_length = '['; + char *prmt_mem_ptr = xstrdup(prmt_ptr); + char pwd_buf[PATH_MAX + 1]; + char buf[16]; + int c; + + pwd_buf[0] = 0; + *prmt_mem_ptr = 0; + + while (*prmt_ptr) { + c = *prmt_ptr++; + if (c == '\\') { + c = *prmt_ptr; + if (c == 0) + break; + prmt_ptr++; + switch (c) { + case 'u': + add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, user_buf); + continue; + case 'h': + if (hostname_buf[0] == 0) { + hostname_buf = xcalloc(256, 1); + if (gethostname(hostname_buf, 255) < 0) { + strcpy(hostname_buf, "?"); + } else { + char *s = strchr(hostname_buf, '.'); + + if (s) + *s = 0; + } + } + add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, + hostname_buf); + continue; + case '$': + c = my_euid == 0 ? '#' : '$'; + break; + case 'w': + if (pwd_buf[0] == 0) { + int l; + + getcwd(pwd_buf, PATH_MAX); + l = strlen(home_pwd_buf); + if (home_pwd_buf[0] != 0 && + strncmp(home_pwd_buf, pwd_buf, l) == 0) { + strcpy(pwd_buf + 1, pwd_buf + l); + pwd_buf[0] = '~'; + } + } + add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, pwd_buf); + continue; + case '!': + snprintf(buf, sizeof(buf), "%d", num_ok_lines); + add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, buf); + continue; + case 'e': + case 'E': /* \e \E = \033 */ + c = '\033'; + break; + case 'x': + case 'X': + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7':{ + int l; + int ho = 0; + char *eho; + + if (c == 'X') + c = 'x'; + + for (l = 0; l < 3;) { + + buf[l++] = *prmt_ptr; + buf[l] = 0; + ho = strtol(buf, &eho, c == 'x' ? 16 : 8); + if (ho > UCHAR_MAX || (eho - buf) < l) { + l--; + break; + } + prmt_ptr++; + } + buf[l] = 0; + ho = strtol(buf, 0, c == 'x' ? 16 : 8); + c = ho == 0 ? '?' : (char) ho; + break; + } + case '[': + case ']': + if (c == flg_not_length) { + flg_not_length = flg_not_length == '[' ? ']' : '['; + continue; + } + break; + } + } + buf[0] = c; + buf[1] = 0; + add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, buf); + if (flg_not_length == ']') + sub_len++; + } + cmdedit_prmt_len = prmt_len - sub_len; + cmdedit_prompt = prmt_mem_ptr; +#else + cmdedit_prompt = prmt_ptr; + cmdedit_prmt_len = strlen(prmt_ptr); +#endif + put_prompt(); +} - xwrite(outputFd, " \b", 2); - while (j-- > cursor) - xwrite(outputFd, "\b", 1); +/* 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); + cmdedit_y = 0; /* new quasireal 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 */ +} -void input_end(int outputFd, int *cursor, int len) +/* Delete the char in back of the cursor */ +static void input_backspace(void) { - while (*cursor < len) { - xwrite(outputFd, "\033[C", 3); - ++*cursor; - } + if (cursor > 0) { + input_backward(1); + input_delete(); + } } -void input_backspace(int outputFd, int *cursor, int *len) +/* Move forward one charactor */ +static void input_forward(void) { - int j = 0; + if (cursor < len) + cmdedit_set_out_char(command_ps[cursor + 1]); +} + - if (*cursor > 0) { - xwrite(outputFd, "\b \b", 3); - --*cursor; - memmove(parsenextc + *cursor, parsenextc + *cursor + 1, - BUFSIZ - *cursor + 1); +static void clean_up_and_die(int sig) +{ + goto_new_line(); + if (sig != SIGINT) + exit(EXIT_SUCCESS); /* cmdedit_reset_term() called in atexit */ + cmdedit_reset_term(); +} - for (j = *cursor; j < (BUFSIZ - 1); j++) { - if (!*(parsenextc + j)) - break; - else - xwrite(outputFd, (parsenextc + j), 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) { - xwrite(outputFd, " \b", 2); + cmdedit_termw = w; - while (j-- > *cursor) - xwrite(outputFd, "\b", 1); + if (redraw_flg) { + /* new y for current cursor */ + int new_y = (cursor + cmdedit_prmt_len) / w; - --*len; - } + /* redraw */ + redraw((new_y >= cmdedit_y ? new_y : cmdedit_y), len - cursor); + fflush(stdout); + } + } } -extern int cmdedit_read_input(int inputFd, int outputFd, - char command[BUFSIZ]) +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; + } - int nr = 0; - int len = 0; - int j = 0; - int cursor = 0; - int break_out = 0; - int ret = 0; - char c = 0; - struct history *hp = his_end; + 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 */ + } - 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); - } + 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; + } - memset(parsenextc, 0, BUFSIZ); +} - while (1) { +#ifdef BB_FEATURE_SH_TAB_COMPLETION - if ((ret = read(inputFd, &c, 1)) < 1) - return ret; +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; +} - switch (c) { - case 1: /* Control-A Beginning of line */ - input_home(outputFd, &cursor); - break; - case 5: /* Control-E EOL */ - input_end(outputFd, &cursor, len); - break; - case 4: /* Control-D */ - if (cursor != len) { - input_delete(outputFd, cursor); - len--; - } - break; - case '\b': /* Backspace */ - case DEL: - input_backspace(outputFd, &cursor, &len); - break; - case '\n': /* Enter */ - *(parsenextc + len++ + 1) = c; - xwrite(outputFd, &c, 1); - break_out = 1; - 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; +#ifdef BB_FEATURE_SH_USERNAME_COMPLETION - switch (c) { - case 'A': - if (hp && hp->p) { /* Up */ - hp = hp->p; - goto hop; - } - break; - case 'B': - if (hp && hp->n && hp->n->s) { /* Down */ - hp = hp->n; - goto hop; - } - break; - - hop: /* hop */ - len = strlen(parsenextc); - - for (; cursor > 0; cursor--) /* return to begining of line */ - xwrite(outputFd, "\b", 1); - - for (j = 0; j < len; j++) /* erase old command */ - xwrite(outputFd, " ", 1); - - for (j = len; j > 0; j--) /* return to begining of line */ - xwrite(outputFd, "\b", 1); - - strcpy(parsenextc, hp->s); /* write new command */ - len = strlen(hp->s); - xwrite(outputFd, parsenextc, len); - cursor = len; - break; - case 'C': /* Right */ - if (cursor < len) { - xwrite(outputFd, "\033[C", 3); - cursor++; - } - break; - case 'D': /* Left */ - if (cursor > 0) { - xwrite(outputFd, "\033[D", 3); - cursor--; - } - break; - case '3': /* Delete */ - if (cursor != len) { - input_delete(outputFd, cursor); - len--; - } - break; - case '1': /* Home (Ctrl-A) */ - input_home(outputFd, &cursor); - break; - case '4': /* End (Ctrl-E) */ - input_end(outputFd, &cursor, len); - break; +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 (c == '1' || c == '3' || c == '4') - if ((ret = read(inputFd, &c, 1)) < 1) - return ret; /* read 126 (~) */ - } - 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; + 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); + } } - } - c = 0; - break; + return 0; /* void, result save to argument :-) */ + } else { + /* "~[^/]*" */ + char **matches = (char **) NULL; + int nm = 0; - default: /* If it's regular input, do the normal thing */ + setpwent(); - if (!isprint(c)) /* Skip non-printable characters */ - break; + while ((entry = getpwent()) != NULL) { + /* Null usernames should result in all users as possible completions. */ + if ( /*!userlen || */ !strncmp(ud, entry->pw_name, userlen)) { - if (len >= (BUFSIZ - 2)) /* Need to leave space for enter */ - break; + temp = xmalloc(3 + strlen(entry->pw_name)); + sprintf(temp, "~%s/", entry->pw_name); + matches = xrealloc(matches, (nm + 1) * sizeof(char *)); - len++; + matches[nm++] = temp; + } + } - 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); + endpwent(); + (*num_matches) = nm; + return (matches); + } +} +#endif /* BB_FEATURE_SH_USERNAME_COMPLETION */ - *(parsenextc + cursor) = c; +enum { + FIND_EXE_ONLY = 0, + FIND_DIR_ONLY = 1, + FIND_FILE_ONLY = 2, +}; - for (j = cursor; j < len; j++) - xwrite(outputFd, parsenextc + j, 1); - for (; j > cursor; j--) - xwrite(outputFd, "\033[D", 3); - } +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= or PATH=: */ + *pth == 0 || (*pth == ':' && *(pth + 1) == 0)) { + return 1; + } - cursor++; - xwrite(outputFd, &c, 1); - break; + tmp = pth; + npth = 0; + + for (;;) { + npth++; /* count words is + 1 count ':' */ + tmp = strchr(tmp, ':'); + if (tmp) { + if (*++tmp == 0) + break; /* : */ + } else + break; } - if (break_out) /* Enter is the command terminator, no more input. */ - 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; /* : */ + } 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); +} - nr = len + 1; - xioctl(inputFd, TCSETA, (void *) &old_term); - reset_term = 0; - if (*(parsenextc)) { /* Handle command history log */ +#define QUOT (UCHAR_MAX+1) - struct history *h = his_end; +#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)); } - 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); +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; + } - h->n->p = h; - h->n->n = NULL; - h->n->s = NULL; - his_end = h->n; - history_counter++; - } else { /* Add a new history command */ + /* 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; + } - h->n = malloc(sizeof(struct history)); + /* 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 */ + } - h->n->p = h; - h->n->n = NULL; - h->n->s = NULL; - h->s = strdup(parsenextc); - his_end = h->n; + /* 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 */ + } - if (history_counter >= MAX_HISTORY) { /* After max history, remove the last known command */ + /* 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; +} - struct history *p = his_front->n; - p->p = NULL; - free(his_front->s); - free(his_front); - his_front = p; - } else { - history_counter++; - } +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; + } - return nr; + 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 */ -extern void cmdedit_init(void) +static void get_previous_history(struct history **hp, struct history *p) { - atexit(cmdedit_reset_term); - signal(SIGINT, gotaSignal); - signal(SIGQUIT, gotaSignal); - signal(SIGTERM, gotaSignal); + if ((*hp)->s) + free((*hp)->s); + (*hp)->s = xstrdup(command_ps); + *hp = p; } -#endif /* BB_FEATURE_SH_COMMAND_EDITING */ + +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 */