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sh.file.c

/* $Header: /src/pub/tcsh/sh.file.c,v 3.28 2005/01/05 16:06:13 christos Exp $ */
/*
 * sh.file.c: File completion for csh. This file is not used in tcsh.
 */
/*-
 * Copyright (c) 1980, 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#include "sh.h"
#include "ed.h"

RCSID("$Id: sh.file.c,v 3.28 2005/01/05 16:06:13 christos Exp $")

#if defined(FILEC) && defined(TIOCSTI)

/*
 * Tenex style file name recognition, .. and more.
 * History:
 *    Author: Ken Greer, Sept. 1975, CMU.
 *    Finally got around to adding to the Cshell., Ken Greer, Dec. 1981.
 */

#define ON  1
#define OFF 0
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif

#define ESC     CTL_ESC('\033')

typedef enum {
    LIST, RECOGNIZE
}       COMMAND;

static      void   setup_tty        __P((int));
static      void   back_to_col_1          __P((void));
static      void   pushback         __P((Char *));
static      void   catn             __P((Char *, Char *, int));
static      void   copyn                  __P((Char *, Char *, int));
static      int    filetype         __P((Char *, Char *));
static      void   print_by_column  __P((Char *, Char *[], size_t));
static      Char  *tilde                  __P((Char *, Char *));
static      void   retype                 __P((void));
static      void   beep             __P((void));
static      void   print_recognized_stuff __P((Char *));
static      void   extract_dir_and_name   __P((Char *, Char *, Char *));
static      Char  *getitem          __P((DIR *, int));
static      void   free_items       __P((Char **, size_t));
static      int    tsearch          __P((Char *, COMMAND, int));
static      int    compare          __P((const ptr_t, const ptr_t));
static      int    recognize        __P((Char *, Char *, int, size_t));
static      int    is_prefix        __P((Char *, Char *));
static      int    is_suffix        __P((Char *, Char *));
static      int    ignored          __P((Char *));


/*
 * Put this here so the binary can be patched with adb to enable file
 * completion by default.  Filec controls completion, nobeep controls
 * ringing the terminal bell on incomplete expansions.
 */
int    filec = 0;

static void
setup_tty(on)
    int     on;
{
#ifdef TERMIO
# ifdef POSIX
    struct termios tchars;
# else
    struct termio tchars;
# endif /* POSIX */

# ifdef POSIX
    (void) tcgetattr(SHIN, &tchars);
# else
    (void) ioctl(SHIN, TCGETA, (ioctl_t) &tchars);
# endif /* POSIX */
    if (on) {
      tchars.c_cc[VEOL] = ESC;
      if (tchars.c_lflag & ICANON)
# ifdef POSIX
          on = TCSADRAIN;
# else
          on = TCSETA;
# endif /* POSIX */
      else {
# ifdef POSIX
          on = TCSAFLUSH;
# else
          on = TCSETAF;
# endif /* POSIX */
          tchars.c_lflag |= ICANON;
    
      }
    }
    else {
      tchars.c_cc[VEOL] = _POSIX_VDISABLE;
# ifdef POSIX
      on = TCSADRAIN;
# else
        on = TCSETA;
# endif /* POSIX */
    }
# ifdef POSIX
    (void) tcsetattr(SHIN, on, &tchars);
# else
    (void) ioctl(SHIN, on, (ioctl_t) &tchars);
# endif /* POSIX */
#else
    struct sgttyb sgtty;
    static struct tchars tchars;/* INT, QUIT, XON, XOFF, EOF, BRK */

    if (on) {
      (void) ioctl(SHIN, TIOCGETC, (ioctl_t) & tchars);
      tchars.t_brkc = ESC;
      (void) ioctl(SHIN, TIOCSETC, (ioctl_t) & tchars);
      /*
       * This must be done after every command: if the tty gets into raw or
       * cbreak mode the user can't even type 'reset'.
       */
      (void) ioctl(SHIN, TIOCGETP, (ioctl_t) & sgtty);
      if (sgtty.sg_flags & (RAW | CBREAK)) {
          sgtty.sg_flags &= ~(RAW | CBREAK);
          (void) ioctl(SHIN, TIOCSETP, (ioctl_t) & sgtty);
      }
    }
    else {
      tchars.t_brkc = -1;
      (void) ioctl(SHIN, TIOCSETC, (ioctl_t) & tchars);
    }
#endif /* TERMIO */
}

/*
 * Move back to beginning of current line
 */
static void
back_to_col_1()
{
#ifdef TERMIO
# ifdef POSIX
    struct termios tty, tty_normal;
# else
    struct termio tty, tty_normal;
# endif /* POSIX */
#else
    struct sgttyb tty, tty_normal;
#endif /* TERMIO */

# ifdef BSDSIGS
    sigmask_t omask = sigblock(sigmask(SIGINT));
# else
    (void) sighold(SIGINT);
# endif /* BSDSIGS */

#ifdef TERMIO
# ifdef POSIX
    (void) tcgetattr(SHOUT, &tty);
# else
    (void) ioctl(SHOUT, TCGETA, (ioctl_t) &tty_normal);
# endif /* POSIX */
    tty_normal = tty;
    tty.c_iflag &= ~INLCR;
    tty.c_oflag &= ~ONLCR;
# ifdef POSIX
    (void) tcsetattr(SHOUT, TCSANOW, &tty);
# else
    (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty);
# endif /* POSIX */
    (void) write(SHOUT, "\r", 1);
# ifdef POSIX
    (void) tcsetattr(SHOUT, TCSANOW, &tty_normal);
# else
    (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty_normal);
# endif /* POSIX */
#else
    (void) ioctl(SHIN, TIOCGETP, (ioctl_t) & tty);
    tty_normal = tty;
    tty.sg_flags &= ~CRMOD;
    (void) ioctl(SHIN, TIOCSETN, (ioctl_t) & tty);
    (void) write(SHOUT, "\r", 1);
    (void) ioctl(SHIN, TIOCSETN, (ioctl_t) & tty_normal);
#endif /* TERMIO */

# ifdef BSDSIGS
    (void) sigsetmask(omask);
# else
    (void) sigrelse(SIGINT);
# endif /* BSDISGS */
}

/*
 * Push string contents back into tty queue
 */
static void
pushback(string)
    Char   *string;
{
    Char *p;
#ifdef TERMIO
# ifdef POSIX
    struct termios tty, tty_normal;
# else
    struct termio tty, tty_normal;
# endif /* POSIX */
#else
    struct sgttyb tty, tty_normal;
#endif /* TERMIO */

#ifdef BSDSIGS
    sigmask_t omask = sigblock(sigmask(SIGINT));
#else
    (void) sighold(SIGINT);
#endif /* BSDSIGS */

#ifdef TERMIO
# ifdef POSIX
    (void) tcgetattr(SHOUT, &tty);
# else
    (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty);
# endif /* POSIX */
    tty_normal = tty;
    tty.c_lflag &= ~(ECHOKE | ECHO | ECHOE | ECHOK | ECHONL | ECHOPRT | ECHOCTL);
# ifdef POSIX
    (void) tcsetattr(SHOUT, TCSANOW, &tty);
# else
    (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty);
# endif /* POSIX */

    for (p = string; *p != '\0'; p++) {
      char buf[MB_LEN_MAX];
      size_t i, len;

      len = one_wctomb(buf, *p & CHAR);
      for (i = 0; i < len; i++)
          (void) ioctl(SHOUT, TIOCSTI, (ioctl_t) &buf[i]);
    }
# ifdef POSIX
    (void) tcsetattr(SHOUT, TCSANOW, &tty_normal);
# else
    (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty_normal);
# endif /* POSIX */
#else
    (void) ioctl(SHOUT, TIOCGETP, (ioctl_t) & tty);
    tty_normal = tty;
    tty.sg_flags &= ~ECHO;
    (void) ioctl(SHOUT, TIOCSETN, (ioctl_t) & tty);

    for (p = string; c = *p; p++)
      (void) ioctl(SHOUT, TIOCSTI, (ioctl_t) & c);
    (void) ioctl(SHOUT, TIOCSETN, (ioctl_t) & tty_normal);
#endif /* TERMIO */

# ifdef BSDSIGS
    (void) sigsetmask(omask);
# else
    (void) sigrelse(SIGINT);
# endif /* BSDISGS */
}

/*
 * Concatenate src onto tail of des.
 * Des is a string whose maximum length is count.
 * Always null terminate.
 */
static void
catn(des, src, count)
    Char *des, *src;
    int count;
{
    while (--count >= 0 && *des)
      des++;
    while (--count >= 0)
      if ((*des++ = *src++) == 0)
          return;
    *des = '\0';
}

/*
 * Like strncpy but always leave room for trailing \0
 * and always null terminate.
 */
static void
copyn(des, src, count)
    Char *des, *src;
    int count;
{
    while (--count >= 0)
      if ((*des++ = *src++) == 0)
          return;
    *des = '\0';
}

static int
filetype(dir, file)
    Char   *dir, *file;
{
    Char    path[MAXPATHLEN];
    struct stat statb;

    catn(Strcpy(path, dir), file, sizeof(path) / sizeof(Char));
    if (lstat(short2str(path), &statb) == 0) {
      switch (statb.st_mode & S_IFMT) {
      case S_IFDIR:
          return ('/');

      case S_IFLNK:
          if (stat(short2str(path), &statb) == 0 &&   /* follow it out */
            S_ISDIR(statb.st_mode))
            return ('>');
          else
            return ('@');

      case S_IFSOCK:
          return ('=');

      default:
          if (statb.st_mode & 0111)
            return ('*');
      }
    }
    return (' ');
}

static struct winsize win;

/*
 * Print sorted down columns
 */
static void
print_by_column(dir, items, count)
    Char   *dir, *items[];
    size_t  count;
{
    size_t i;
    int rows, r, c, maxwidth = 0, columns;

    if (ioctl(SHOUT, TIOCGWINSZ, (ioctl_t) & win) < 0 || win.ws_col == 0)
      win.ws_col = 80;
    for (i = 0; i < count; i++)
      maxwidth = maxwidth > (r = Strlen(items[i])) ? maxwidth : r;
    maxwidth += 2;            /* for the file tag and space */
    columns = win.ws_col / maxwidth;
    if (columns == 0)
      columns = 1;
    rows = (count + (columns - 1)) / columns;
    for (r = 0; r < rows; r++) {
      for (c = 0; c < columns; c++) {
          i = c * rows + r;
          if (i < count) {
            int w;

            xprintf("%S", items[i]);
            xputchar(dir ? filetype(dir, items[i]) : ' ');
            if (c < columns - 1) {  /* last column? */
                w = Strlen(items[i]) + 1;
                for (; w < maxwidth; w++)
                  xputchar(' ');
            }
          }
      }
      xputchar('\r');
      xputchar('\n');
    }
}

/*
 * Expand file name with possible tilde usage
 *    ~person/mumble
 * expands to
 *    home_directory_of_person/mumble
 */
static Char *
tilde(new, old)
    Char   *new, *old;
{
    Char *o, *p;
    struct passwd *pw;
    static Char person[40];

    if (old[0] != '~')
      return (Strcpy(new, old));

    for (p = person, o = &old[1]; *o && *o != '/'; *p++ = *o++);
    *p = '\0';
    if (person[0] == '\0')
      (void) Strcpy(new, varval(STRhome));
    else {
      pw = getpwnam(short2str(person));
      if (pw == NULL)
          return (NULL);
      (void) Strcpy(new, str2short(pw->pw_dir));
    }
    (void) Strcat(new, o);
    return (new);
}

/*
 * Cause pending line to be printed
 */
static void
retype()
{
#ifdef TERMIO
# ifdef POSIX
    struct termios tty;

    (void) tcgetattr(SHOUT, &tty);
# else
    struct termio tty;

    (void) ioctl(SHOUT, TCGETA, (ioctl_t) &tty);
# endif /* POSIX */

    tty.c_lflag |= PENDIN;

# ifdef POSIX
    (void) tcsetattr(SHOUT, TCSANOW, &tty);
# else
    (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty);
# endif /* POSIX */
#else
    int     pending_input = LPENDIN;

    (void) ioctl(SHOUT, TIOCLBIS, (ioctl_t) & pending_input);
#endif /* TERMIO */
}

static void
beep()
{
    if (adrof(STRnobeep) == 0)
#ifdef IS_ASCII
      (void) write(SHOUT, "\007", 1);
#else
    {
      unsigned char beep_ch = CTL_ESC('\007');
      (void) write(SHOUT, &beep_ch, 1);
    }
#endif
}

/*
 * Erase that silly ^[ and
 * print the recognized part of the string
 */
static void
print_recognized_stuff(recognized_part)
    Char   *recognized_part;
{
    /* An optimized erasing of that silly ^[ */
    (void) putraw('\b');
    (void) putraw('\b');
    switch (Strlen(recognized_part)) {

    case 0:             /* erase two Characters: ^[ */
      (void) putraw(' ');
      (void) putraw(' ');
      (void) putraw('\b');
      (void) putraw('\b');
      break;

    case 1:             /* overstrike the ^, erase the [ */
      xprintf("%S", recognized_part);
      (void) putraw(' ');
      (void) putraw('\b');
      break;

    default:                  /* overstrike both Characters ^[ */
      xprintf("%S", recognized_part);
      break;
    }
    flush();
}

/*
 * Parse full path in file into 2 parts: directory and file names
 * Should leave final slash (/) at end of dir.
 */
static void
extract_dir_and_name(path, dir, name)
    Char   *path, *dir, *name;
{
    Char *p;

    p = Strrchr(path, '/');
    if (p == NULL) {
      copyn(name, path, MAXNAMLEN);
      dir[0] = '\0';
    }
    else {
      copyn(name, ++p, MAXNAMLEN);
      copyn(dir, path, p - path);
    }
}

static Char *
getitem(dir_fd, looking_for_lognames)
    DIR    *dir_fd;
    int     looking_for_lognames;
{
    struct passwd *pw;
    struct dirent *dirp;

    if (looking_for_lognames) {
#ifndef HAVE_GETPWENT
          return (NULL);
#else
      if ((pw = getpwent()) == NULL)
          return (NULL);
      return (str2short(pw->pw_name));
#endif /* atp vmsposix */
    }
    if ((dirp = readdir(dir_fd)) != NULL)
      return (str2short(dirp->d_name));
    return (NULL);
}

static void
free_items(items, numitems)
    Char **items;
    size_t numitems;
{
    size_t i;

    for (i = 0; i < numitems; i++)
      xfree((ptr_t) items[i]);
    xfree((ptr_t) items);
}

#ifdef BSDSIGS
# define FREE_ITEMS(items, numitems) { \
      sigmask_t omask;\
\
      omask = sigblock(sigmask(SIGINT));\
      free_items(items, numitems);\
      (void) sigsetmask(omask);\
}
#else
# define FREE_ITEMS(items, numitems) { \
      (void) sighold(SIGINT);\
      free_items(items, numitems);\
      (void) sigrelse(SIGINT);\
}
#endif /* BSDSIGS */

/*
 * Perform a RECOGNIZE or LIST command on string "word".
 */
static int
tsearch(word, command, max_word_length)
    Char   *word;
    int     max_word_length;
    COMMAND command;
{
    DIR *dir_fd;
    int ignoring = TRUE, nignored = 0;
    int name_length, looking_for_lognames;
    Char    tilded_dir[MAXPATHLEN + 1], dir[MAXPATHLEN + 1];
    Char    name[MAXNAMLEN + 1], extended_name[MAXNAMLEN + 1];
    Char   *item;
    Char **items = NULL;
    size_t numitems = 0, maxitems = 0;

    looking_for_lognames = (*word == '~') && (Strchr(word, '/') == NULL);
    if (looking_for_lognames) {
#ifdef HAVE_GETPWENT
      (void) setpwent();
#endif
      copyn(name, &word[1], MAXNAMLEN);   /* name sans ~ */
      dir_fd = NULL;
    }
    else {
      extract_dir_and_name(word, dir, name);
      if (tilde(tilded_dir, dir) == 0)
          return (0);
      dir_fd = opendir(*tilded_dir ? short2str(tilded_dir) : ".");
      if (dir_fd == NULL)
          return (0);
    }

again:                        /* search for matches */
    name_length = Strlen(name);
    for (numitems = 0;
      (item = getitem(dir_fd, looking_for_lognames)) != NULL;) {
      if (!is_prefix(name, item))
          continue;
      /* Don't match . files on null prefix match */
      if (name_length == 0 && item[0] == '.' &&
          !looking_for_lognames)
          continue;
      if (command == LIST) {
          if (numitems >= maxitems) {
            maxitems += 1024;
            if (items == NULL)
                  items = (Char **) xmalloc(sizeof(*items) * maxitems);
            else
                  items = (Char **) xrealloc((ptr_t) items,
                      sizeof(*items) * maxitems);
          }
          items[numitems] = (Char *) xmalloc((size_t) (Strlen(item) + 1) *
                                     sizeof(Char));
          copyn(items[numitems], item, MAXNAMLEN);
          numitems++;
      }
      else {                  /* RECOGNIZE command */
          if (ignoring && ignored(item))
            nignored++;
          else if (recognize(extended_name,
                         item, name_length, ++numitems))
            break;
      }
    }
    if (ignoring && numitems == 0 && nignored > 0) {
      ignoring = FALSE;
      nignored = 0;
      if (looking_for_lognames) {
#ifdef HAVE_GETPWENT
          (void) setpwent();
#endif /* atp vmsposix */
      } else
          rewinddir(dir_fd);
      goto again;
    }

    if (looking_for_lognames) {
#ifndef HAVE_GETPWENT
      (void) endpwent();
#endif
    } else
      (void) closedir(dir_fd);
    if (numitems == 0)
      return (0);
    if (command == RECOGNIZE) {
      if (looking_for_lognames)
          copyn(word, STRtilde, 1);
      else
          /* put back dir part */
          copyn(word, dir, max_word_length);
      /* add extended name */
      catn(word, extended_name, max_word_length);
      return (numitems);
    }
    else {              /* LIST */
      qsort((ptr_t) items, numitems, sizeof(items[0]), 
          (int (*) __P((const void *, const void *))) compare);
      print_by_column(looking_for_lognames ? NULL : tilded_dir,
                  items, numitems);
      if (items != NULL)
          FREE_ITEMS(items, numitems);
    }
    return (0);
}


static int
compare(p, q)
    const ptr_t  p, q;
{
#ifdef WIDE_STRINGS
    errno = 0;

    return (wcscoll(*(Char **) p, *(Char **) q));
#else
    char *p1, *q1;
    int res;

    p1 = strsave(short2str(*(Char **) p));
    q1 = strsave(short2str(*(Char **) q));
# if defined(NLS) && !defined(NOSTRCOLL)
    errno = 0;  /* strcoll sets errno, another brain-damage */
    res = strcoll(p1, q1);
# else
    res = strcmp(p1, q1);
# endif /* NLS && !NOSTRCOLL */
    xfree (p1);
    xfree (q1);
    return res;
#endif /* not WIDE_STRINGS */
}

/*
 * Object: extend what user typed up to an ambiguity.
 * Algorithm:
 * On first match, copy full item (assume it'll be the only match)
 * On subsequent matches, shorten extended_name to the first
 * Character mismatch between extended_name and item.
 * If we shorten it back to the prefix length, stop searching.
 */
static int
recognize(extended_name, item, name_length, numitems)
    Char   *extended_name, *item;
    int     name_length;
    size_t  numitems;
{
    if (numitems == 1)        /* 1st match */
      copyn(extended_name, item, MAXNAMLEN);
    else {              /* 2nd & subsequent matches */
      Char *x, *ent;
      int len = 0;

      x = extended_name;
      for (ent = item; *x && *x == *ent++; x++, len++);
      *x = '\0';        /* Shorten at 1st Char diff */
      if (len == name_length) /* Ambiguous to prefix? */
          return (-1);  /* So stop now and save time */
    }
    return (0);
}

/*
 * Return true if check matches initial Chars in template.
 * This differs from PWB imatch in that if check is null
 * it matches anything.
 */
static int
is_prefix(check, template)
    Char *check, *template;
{
    do
      if (*check == 0)
          return (TRUE);
    while (*check++ == *template++);
    return (FALSE);
}

/*
 *  Return true if the Chars in template appear at the
 *  end of check, I.e., are it's suffix.
 */
static int
is_suffix(check, template)
    Char   *check, *template;
{
    Char *c, *t;

    for (c = check; *c++;);
    for (t = template; *t++;);
    for (;;) {
      if (t == template)
          return 1;
      if (c == check || *--t != *--c)
          return 0;
    }
}

int
tenex(inputline, inputline_size)
    Char   *inputline;
    int     inputline_size;
{
    int numitems, num_read;
    char    tinputline[BUFSIZE + 1];


    setup_tty(ON);

    while ((num_read = read(SHIN, tinputline, BUFSIZE)) > 0) {
      static Char delims[] = {' ', '\'', '"', '\t', ';', '&', '<',
      '>', '(', ')', '|', '^', '%', '\0'};
      Char *str_end, *word_start, last_Char, should_retype;
      int space_left;
      COMMAND command;

      tinputline[num_read] = 0;
      Strcpy(inputline, str2short(tinputline));
      num_read = Strlen(inputline);
      last_Char = inputline[num_read - 1] & ASCII;

      if (last_Char == '\n' || num_read == inputline_size)
          break;
      command = (last_Char == ESC) ? RECOGNIZE : LIST;
      if (command == LIST)
          xputchar('\n');
      str_end = &inputline[num_read];
      if (last_Char == ESC)
          --str_end;          /* wipeout trailing cmd Char */
      *str_end = '\0';
      /*
       * Find LAST occurence of a delimiter in the inputline. The word start
       * is one Character past it.
       */
      for (word_start = str_end; word_start > inputline; --word_start)
          if (Strchr(delims, word_start[-1]))
            break;
      space_left = inputline_size - (word_start - inputline) - 1;
      numitems = tsearch(word_start, command, space_left);

      if (command == RECOGNIZE) {
          /* print from str_end on */
          print_recognized_stuff(str_end);
          if (numitems != 1)  /* Beep = No match/ambiguous */
            beep();
      }

      /*
       * Tabs in the input line cause trouble after a pushback. tty driver
       * won't backspace over them because column positions are now
       * incorrect. This is solved by retyping over current line.
       */
      should_retype = FALSE;
      if (Strchr(inputline, '\t')) {      /* tab Char in input line? */
          back_to_col_1();
          should_retype = TRUE;
      }
      if (command == LIST)    /* Always retype after a LIST */
          should_retype = TRUE;
      if (should_retype)
          printprompt(0, NULL);
      pushback(inputline);
      if (should_retype)
          retype();
    }
    setup_tty(OFF);
    return (num_read);
}

static int
ignored(item)
    Char *item;
{
    struct varent *vp;
    Char **cp;

    if ((vp = adrof(STRfignore)) == NULL || (cp = vp->vec) == NULL)
      return (FALSE);
    for (; *cp != NULL; cp++)
      if (is_suffix(item, *cp))
          return (TRUE);
    return (FALSE);
}
#endif      /* FILEC && TIOCSTI */

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