1 /* $NetBSD: filecomplete.c,v 1.62 2019/12/10 19:42:09 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jaromir Dolecek. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include "config.h" 33 34 #if !defined(lint) && !defined(SCCSID) 35 __RCSID("$NetBSD: filecomplete.c,v 1.62 2019/12/10 19:42:09 christos Exp $"); 36 #endif /* not lint && not SCCSID */ 37 38 #include <sys/types.h> 39 #include <sys/stat.h> 40 #include <dirent.h> 41 #include <errno.h> 42 #include <fcntl.h> 43 #include <limits.h> 44 #include <pwd.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 50 #include "el.h" 51 #include "filecomplete.h" 52 53 static const wchar_t break_chars[] = L" \t\n\"\\'`@$><=;|&{("; 54 55 /********************************/ 56 /* completion functions */ 57 58 /* 59 * does tilde expansion of strings of type ``~user/foo'' 60 * if ``user'' isn't valid user name or ``txt'' doesn't start 61 * w/ '~', returns pointer to strdup()ed copy of ``txt'' 62 * 63 * it's the caller's responsibility to free() the returned string 64 */ 65 char * 66 fn_tilde_expand(const char *txt) 67 { 68 #if defined(HAVE_GETPW_R_POSIX) || defined(HAVE_GETPW_R_DRAFT) 69 struct passwd pwres; 70 char pwbuf[1024]; 71 #endif 72 struct passwd *pass; 73 char *temp; 74 size_t len = 0; 75 76 if (txt[0] != '~') 77 return strdup(txt); 78 79 temp = strchr(txt + 1, '/'); 80 if (temp == NULL) { 81 temp = strdup(txt + 1); 82 if (temp == NULL) 83 return NULL; 84 } else { 85 /* text until string after slash */ 86 len = (size_t)(temp - txt + 1); 87 temp = el_calloc(len, sizeof(*temp)); 88 if (temp == NULL) 89 return NULL; 90 (void)strlcpy(temp, txt + 1, len - 1); 91 } 92 if (temp[0] == 0) { 93 #ifdef HAVE_GETPW_R_POSIX 94 if (getpwuid_r(getuid(), &pwres, pwbuf, sizeof(pwbuf), 95 &pass) != 0) 96 pass = NULL; 97 #elif HAVE_GETPW_R_DRAFT 98 pass = getpwuid_r(getuid(), &pwres, pwbuf, sizeof(pwbuf)); 99 #else 100 pass = getpwuid(getuid()); 101 #endif 102 } else { 103 #ifdef HAVE_GETPW_R_POSIX 104 if (getpwnam_r(temp, &pwres, pwbuf, sizeof(pwbuf), &pass) != 0) 105 pass = NULL; 106 #elif HAVE_GETPW_R_DRAFT 107 pass = getpwnam_r(temp, &pwres, pwbuf, sizeof(pwbuf)); 108 #else 109 pass = getpwnam(temp); 110 #endif 111 } 112 el_free(temp); /* value no more needed */ 113 if (pass == NULL) 114 return strdup(txt); 115 116 /* update pointer txt to point at string immedially following */ 117 /* first slash */ 118 txt += len; 119 120 len = strlen(pass->pw_dir) + 1 + strlen(txt) + 1; 121 temp = el_calloc(len, sizeof(*temp)); 122 if (temp == NULL) 123 return NULL; 124 (void)snprintf(temp, len, "%s/%s", pass->pw_dir, txt); 125 126 return temp; 127 } 128 129 static int 130 needs_escaping(char c) 131 { 132 switch (c) { 133 case '\'': 134 case '"': 135 case '(': 136 case ')': 137 case '\\': 138 case '<': 139 case '>': 140 case '$': 141 case '#': 142 case ' ': 143 case '\n': 144 case '\t': 145 case '?': 146 case ';': 147 case '`': 148 case '@': 149 case '=': 150 case '|': 151 case '{': 152 case '}': 153 case '&': 154 case '*': 155 case '[': 156 return 1; 157 default: 158 return 0; 159 } 160 } 161 162 static int 163 needs_dquote_escaping(char c) 164 { 165 switch (c) { 166 case '"': 167 case '\\': 168 case '`': 169 case '$': 170 return 1; 171 default: 172 return 0; 173 } 174 } 175 176 177 static wchar_t * 178 unescape_string(const wchar_t *string, size_t length) 179 { 180 size_t i; 181 size_t j = 0; 182 wchar_t *unescaped = el_calloc(length + 1, sizeof(*string)); 183 if (unescaped == NULL) 184 return NULL; 185 for (i = 0; i < length ; i++) { 186 if (string[i] == '\\') 187 continue; 188 unescaped[j++] = string[i]; 189 } 190 unescaped[j] = 0; 191 return unescaped; 192 } 193 194 static char * 195 escape_filename(EditLine * el, const char *filename, int single_match, 196 const char *(*app_func)(const char *)) 197 { 198 size_t original_len = 0; 199 size_t escaped_character_count = 0; 200 size_t offset = 0; 201 size_t newlen; 202 const char *s; 203 char c; 204 size_t s_quoted = 0; /* does the input contain a single quote */ 205 size_t d_quoted = 0; /* does the input contain a double quote */ 206 char *escaped_str; 207 wchar_t *temp = el->el_line.buffer; 208 const char *append_char = NULL; 209 210 if (filename == NULL) 211 return NULL; 212 213 while (temp != el->el_line.cursor) { 214 /* 215 * If we see a single quote but have not seen a double quote 216 * so far set/unset s_quote 217 */ 218 if (temp[0] == '\'' && !d_quoted) 219 s_quoted = !s_quoted; 220 /* 221 * vice versa to the above condition 222 */ 223 else if (temp[0] == '"' && !s_quoted) 224 d_quoted = !d_quoted; 225 temp++; 226 } 227 228 /* Count number of special characters so that we can calculate 229 * number of extra bytes needed in the new string 230 */ 231 for (s = filename; *s; s++, original_len++) { 232 c = *s; 233 /* Inside a single quote only single quotes need escaping */ 234 if (s_quoted && c == '\'') { 235 escaped_character_count += 3; 236 continue; 237 } 238 /* Inside double quotes only ", \, ` and $ need escaping */ 239 if (d_quoted && needs_dquote_escaping(c)) { 240 escaped_character_count++; 241 continue; 242 } 243 if (!s_quoted && !d_quoted && needs_escaping(c)) 244 escaped_character_count++; 245 } 246 247 newlen = original_len + escaped_character_count + 1; 248 if (s_quoted || d_quoted) 249 newlen++; 250 251 if (single_match && app_func) 252 newlen++; 253 254 if ((escaped_str = el_malloc(newlen)) == NULL) 255 return NULL; 256 257 for (s = filename; *s; s++) { 258 c = *s; 259 if (!needs_escaping(c)) { 260 /* no escaping is required continue as usual */ 261 escaped_str[offset++] = c; 262 continue; 263 } 264 265 /* single quotes inside single quotes require special handling */ 266 if (c == '\'' && s_quoted) { 267 escaped_str[offset++] = '\''; 268 escaped_str[offset++] = '\\'; 269 escaped_str[offset++] = '\''; 270 escaped_str[offset++] = '\''; 271 continue; 272 } 273 274 /* Otherwise no escaping needed inside single quotes */ 275 if (s_quoted) { 276 escaped_str[offset++] = c; 277 continue; 278 } 279 280 /* No escaping needed inside a double quoted string either 281 * unless we see a '$', '\', '`', or '"' (itself) 282 */ 283 if (d_quoted && !needs_dquote_escaping(c)) { 284 escaped_str[offset++] = c; 285 continue; 286 } 287 288 /* If we reach here that means escaping is actually needed */ 289 escaped_str[offset++] = '\\'; 290 escaped_str[offset++] = c; 291 } 292 293 if (single_match && app_func) { 294 escaped_str[offset] = 0; 295 append_char = app_func(escaped_str); 296 /* we want to append space only if we are not inside quotes */ 297 if (append_char[0] == ' ') { 298 if (!s_quoted && !d_quoted) 299 escaped_str[offset++] = append_char[0]; 300 } else 301 escaped_str[offset++] = append_char[0]; 302 } 303 304 /* close the quotes if single match and the match is not a directory */ 305 if (single_match && (append_char && append_char[0] == ' ')) { 306 if (s_quoted) 307 escaped_str[offset++] = '\''; 308 else if (d_quoted) 309 escaped_str[offset++] = '"'; 310 } 311 312 escaped_str[offset] = 0; 313 return escaped_str; 314 } 315 316 /* 317 * return first found file name starting by the ``text'' or NULL if no 318 * such file can be found 319 * value of ``state'' is ignored 320 * 321 * it's the caller's responsibility to free the returned string 322 */ 323 char * 324 fn_filename_completion_function(const char *text, int state) 325 { 326 static DIR *dir = NULL; 327 static char *filename = NULL, *dirname = NULL, *dirpath = NULL; 328 static size_t filename_len = 0; 329 struct dirent *entry; 330 char *temp; 331 size_t len; 332 333 if (state == 0 || dir == NULL) { 334 temp = strrchr(text, '/'); 335 if (temp) { 336 char *nptr; 337 temp++; 338 nptr = el_realloc(filename, (strlen(temp) + 1) * 339 sizeof(*nptr)); 340 if (nptr == NULL) { 341 el_free(filename); 342 filename = NULL; 343 return NULL; 344 } 345 filename = nptr; 346 (void)strcpy(filename, temp); 347 len = (size_t)(temp - text); /* including last slash */ 348 349 nptr = el_realloc(dirname, (len + 1) * 350 sizeof(*nptr)); 351 if (nptr == NULL) { 352 el_free(dirname); 353 dirname = NULL; 354 return NULL; 355 } 356 dirname = nptr; 357 (void)strlcpy(dirname, text, len + 1); 358 } else { 359 el_free(filename); 360 if (*text == 0) 361 filename = NULL; 362 else { 363 filename = strdup(text); 364 if (filename == NULL) 365 return NULL; 366 } 367 el_free(dirname); 368 dirname = NULL; 369 } 370 371 if (dir != NULL) { 372 (void)closedir(dir); 373 dir = NULL; 374 } 375 376 /* support for ``~user'' syntax */ 377 378 el_free(dirpath); 379 dirpath = NULL; 380 if (dirname == NULL) { 381 if ((dirname = strdup("")) == NULL) 382 return NULL; 383 dirpath = strdup("./"); 384 } else if (*dirname == '~') 385 dirpath = fn_tilde_expand(dirname); 386 else 387 dirpath = strdup(dirname); 388 389 if (dirpath == NULL) 390 return NULL; 391 392 dir = opendir(dirpath); 393 if (!dir) 394 return NULL; /* cannot open the directory */ 395 396 /* will be used in cycle */ 397 filename_len = filename ? strlen(filename) : 0; 398 } 399 400 /* find the match */ 401 while ((entry = readdir(dir)) != NULL) { 402 /* skip . and .. */ 403 if (entry->d_name[0] == '.' && (!entry->d_name[1] 404 || (entry->d_name[1] == '.' && !entry->d_name[2]))) 405 continue; 406 if (filename_len == 0) 407 break; 408 /* otherwise, get first entry where first */ 409 /* filename_len characters are equal */ 410 if (entry->d_name[0] == filename[0] 411 /* Some dirents have d_namlen, but it is not portable. */ 412 && strlen(entry->d_name) >= filename_len 413 && strncmp(entry->d_name, filename, 414 filename_len) == 0) 415 break; 416 } 417 418 if (entry) { /* match found */ 419 420 /* Some dirents have d_namlen, but it is not portable. */ 421 len = strlen(entry->d_name); 422 423 len = strlen(dirname) + len + 1; 424 temp = el_calloc(len, sizeof(*temp)); 425 if (temp == NULL) 426 return NULL; 427 (void)snprintf(temp, len, "%s%s", dirname, entry->d_name); 428 } else { 429 (void)closedir(dir); 430 dir = NULL; 431 temp = NULL; 432 } 433 434 return temp; 435 } 436 437 438 static const char * 439 append_char_function(const char *name) 440 { 441 struct stat stbuf; 442 char *expname = *name == '~' ? fn_tilde_expand(name) : NULL; 443 const char *rs = " "; 444 445 if (stat(expname ? expname : name, &stbuf) == -1) 446 goto out; 447 if (S_ISDIR(stbuf.st_mode)) 448 rs = "/"; 449 out: 450 if (expname) 451 el_free(expname); 452 return rs; 453 } 454 /* 455 * returns list of completions for text given 456 * non-static for readline. 457 */ 458 char ** completion_matches(const char *, char *(*)(const char *, int)); 459 char ** 460 completion_matches(const char *text, char *(*genfunc)(const char *, int)) 461 { 462 char **match_list = NULL, *retstr, *prevstr; 463 size_t match_list_len, max_equal, which, i; 464 size_t matches; 465 466 matches = 0; 467 match_list_len = 1; 468 while ((retstr = (*genfunc) (text, (int)matches)) != NULL) { 469 /* allow for list terminator here */ 470 if (matches + 3 >= match_list_len) { 471 char **nmatch_list; 472 while (matches + 3 >= match_list_len) 473 match_list_len <<= 1; 474 nmatch_list = el_realloc(match_list, 475 match_list_len * sizeof(*nmatch_list)); 476 if (nmatch_list == NULL) { 477 el_free(match_list); 478 return NULL; 479 } 480 match_list = nmatch_list; 481 482 } 483 match_list[++matches] = retstr; 484 } 485 486 if (!match_list) 487 return NULL; /* nothing found */ 488 489 /* find least denominator and insert it to match_list[0] */ 490 which = 2; 491 prevstr = match_list[1]; 492 max_equal = strlen(prevstr); 493 for (; which <= matches; which++) { 494 for (i = 0; i < max_equal && 495 prevstr[i] == match_list[which][i]; i++) 496 continue; 497 max_equal = i; 498 } 499 500 retstr = el_calloc(max_equal + 1, sizeof(*retstr)); 501 if (retstr == NULL) { 502 el_free(match_list); 503 return NULL; 504 } 505 (void)strlcpy(retstr, match_list[1], max_equal + 1); 506 match_list[0] = retstr; 507 508 /* add NULL as last pointer to the array */ 509 match_list[matches + 1] = NULL; 510 511 return match_list; 512 } 513 514 /* 515 * Sort function for qsort(). Just wrapper around strcasecmp(). 516 */ 517 static int 518 _fn_qsort_string_compare(const void *i1, const void *i2) 519 { 520 const char *s1 = ((const char * const *)i1)[0]; 521 const char *s2 = ((const char * const *)i2)[0]; 522 523 return strcasecmp(s1, s2); 524 } 525 526 /* 527 * Display list of strings in columnar format on readline's output stream. 528 * 'matches' is list of strings, 'num' is number of strings in 'matches', 529 * 'width' is maximum length of string in 'matches'. 530 * 531 * matches[0] is not one of the match strings, but it is counted in 532 * num, so the strings are matches[1] *through* matches[num-1]. 533 */ 534 void 535 fn_display_match_list(EditLine * el, char **matches, size_t num, size_t width, 536 const char *(*app_func) (const char *)) 537 { 538 size_t line, lines, col, cols, thisguy; 539 int screenwidth = el->el_terminal.t_size.h; 540 if (app_func == NULL) 541 app_func = append_char_function; 542 543 /* Ignore matches[0]. Avoid 1-based array logic below. */ 544 matches++; 545 num--; 546 547 /* 548 * Find out how many entries can be put on one line; count 549 * with one space between strings the same way it's printed. 550 */ 551 cols = (size_t)screenwidth / (width + 2); 552 if (cols == 0) 553 cols = 1; 554 555 /* how many lines of output, rounded up */ 556 lines = (num + cols - 1) / cols; 557 558 /* Sort the items. */ 559 qsort(matches, num, sizeof(char *), _fn_qsort_string_compare); 560 561 /* 562 * On the ith line print elements i, i+lines, i+lines*2, etc. 563 */ 564 for (line = 0; line < lines; line++) { 565 for (col = 0; col < cols; col++) { 566 thisguy = line + col * lines; 567 if (thisguy >= num) 568 break; 569 (void)fprintf(el->el_outfile, "%s%s%s", 570 col == 0 ? "" : " ", matches[thisguy], 571 (*app_func)(matches[thisguy])); 572 (void)fprintf(el->el_outfile, "%-*s", 573 (int) (width - strlen(matches[thisguy])), ""); 574 } 575 (void)fprintf(el->el_outfile, "\n"); 576 } 577 } 578 579 static wchar_t * 580 find_word_to_complete(const wchar_t * cursor, const wchar_t * buffer, 581 const wchar_t * word_break, const wchar_t * special_prefixes, size_t * length) 582 { 583 /* We now look backwards for the start of a filename/variable word */ 584 const wchar_t *ctemp = cursor; 585 size_t len; 586 587 /* if the cursor is placed at a slash or a quote, we need to find the 588 * word before it 589 */ 590 if (ctemp > buffer) { 591 switch (ctemp[-1]) { 592 case '\\': 593 case '\'': 594 case '"': 595 ctemp--; 596 break; 597 default: 598 break; 599 } 600 } 601 602 for (;;) { 603 if (ctemp <= buffer) 604 break; 605 if (wcschr(word_break, ctemp[-1])) { 606 if (ctemp - buffer >= 2 && ctemp[-2] == '\\') { 607 ctemp -= 2; 608 continue; 609 } else if (ctemp - buffer >= 2 && 610 (ctemp[-2] == '\'' || ctemp[-2] == '"')) { 611 ctemp--; 612 continue; 613 } else 614 break; 615 } 616 if (special_prefixes && wcschr(special_prefixes, ctemp[-1])) 617 break; 618 ctemp--; 619 } 620 621 len = (size_t) (cursor - ctemp); 622 if (len == 1 && (ctemp[0] == '\'' || ctemp[0] == '"')) { 623 len = 0; 624 ctemp++; 625 } 626 *length = len; 627 wchar_t *unescaped_word = unescape_string(ctemp, len); 628 if (unescaped_word == NULL) 629 return NULL; 630 return unescaped_word; 631 } 632 633 /* 634 * Complete the word at or before point, 635 * 'what_to_do' says what to do with the completion. 636 * \t means do standard completion. 637 * `?' means list the possible completions. 638 * `*' means insert all of the possible completions. 639 * `!' means to do standard completion, and list all possible completions if 640 * there is more than one. 641 * 642 * Note: '*' support is not implemented 643 * '!' could never be invoked 644 */ 645 int 646 fn_complete(EditLine *el, 647 char *(*complet_func)(const char *, int), 648 char **(*attempted_completion_function)(const char *, int, int), 649 const wchar_t *word_break, const wchar_t *special_prefixes, 650 const char *(*app_func)(const char *), size_t query_items, 651 int *completion_type, int *over, int *point, int *end) 652 { 653 const LineInfoW *li; 654 wchar_t *temp; 655 char **matches; 656 char *completion; 657 size_t len; 658 int what_to_do = '\t'; 659 int retval = CC_NORM; 660 661 if (el->el_state.lastcmd == el->el_state.thiscmd) 662 what_to_do = '?'; 663 664 /* readline's rl_complete() has to be told what we did... */ 665 if (completion_type != NULL) 666 *completion_type = what_to_do; 667 668 if (!complet_func) 669 complet_func = fn_filename_completion_function; 670 if (!app_func) 671 app_func = append_char_function; 672 673 li = el_wline(el); 674 temp = find_word_to_complete(li->cursor, 675 li->buffer, word_break, special_prefixes, &len); 676 if (temp == NULL) 677 goto out; 678 679 /* these can be used by function called in completion_matches() */ 680 /* or (*attempted_completion_function)() */ 681 if (point != NULL) 682 *point = (int)(li->cursor - li->buffer); 683 if (end != NULL) 684 *end = (int)(li->lastchar - li->buffer); 685 686 if (attempted_completion_function) { 687 int cur_off = (int)(li->cursor - li->buffer); 688 matches = (*attempted_completion_function)( 689 ct_encode_string(temp, &el->el_scratch), 690 cur_off - (int)len, cur_off); 691 } else 692 matches = NULL; 693 if (!attempted_completion_function || 694 (over != NULL && !*over && !matches)) 695 matches = completion_matches( 696 ct_encode_string(temp, &el->el_scratch), complet_func); 697 698 if (over != NULL) 699 *over = 0; 700 701 if (matches == NULL) { 702 goto out; 703 } 704 int i; 705 size_t matches_num, maxlen, match_len, match_display=1; 706 int single_match = matches[2] == NULL && 707 (matches[1] == NULL || strcmp(matches[0], matches[1]) == 0); 708 709 retval = CC_REFRESH; 710 711 if (matches[0][0] != '\0') { 712 el_deletestr(el, (int)len); 713 if (!attempted_completion_function) 714 completion = escape_filename(el, matches[0], 715 single_match, app_func); 716 else 717 completion = strdup(matches[0]); 718 if (completion == NULL) 719 goto out; 720 721 /* 722 * Replace the completed string with the common part of 723 * all possible matches if there is a possible completion. 724 */ 725 el_winsertstr(el, 726 ct_decode_string(completion, &el->el_scratch)); 727 728 if (single_match && attempted_completion_function) { 729 /* 730 * We found an exact match. Add a space after 731 * it, unless we do filename completion and the 732 * object is a directory. Also do necessary 733 * escape quoting 734 */ 735 el_winsertstr(el, ct_decode_string( 736 (*app_func)(completion), &el->el_scratch)); 737 } 738 free(completion); 739 } 740 741 742 if (!single_match && (what_to_do == '!' || what_to_do == '?')) { 743 /* 744 * More than one match and requested to list possible 745 * matches. 746 */ 747 748 for(i = 1, maxlen = 0; matches[i]; i++) { 749 match_len = strlen(matches[i]); 750 if (match_len > maxlen) 751 maxlen = match_len; 752 } 753 /* matches[1] through matches[i-1] are available */ 754 matches_num = (size_t)(i - 1); 755 756 /* newline to get on next line from command line */ 757 (void)fprintf(el->el_outfile, "\n"); 758 759 /* 760 * If there are too many items, ask user for display 761 * confirmation. 762 */ 763 if (matches_num > query_items) { 764 (void)fprintf(el->el_outfile, 765 "Display all %zu possibilities? (y or n) ", 766 matches_num); 767 (void)fflush(el->el_outfile); 768 if (getc(stdin) != 'y') 769 match_display = 0; 770 (void)fprintf(el->el_outfile, "\n"); 771 } 772 773 if (match_display) { 774 /* 775 * Interface of this function requires the 776 * strings be matches[1..num-1] for compat. 777 * We have matches_num strings not counting 778 * the prefix in matches[0], so we need to 779 * add 1 to matches_num for the call. 780 */ 781 fn_display_match_list(el, matches, 782 matches_num+1, maxlen, app_func); 783 } 784 retval = CC_REDISPLAY; 785 } else if (matches[0][0]) { 786 /* 787 * There was some common match, but the name was 788 * not complete enough. Next tab will print possible 789 * completions. 790 */ 791 el_beep(el); 792 } else { 793 /* lcd is not a valid object - further specification */ 794 /* is needed */ 795 el_beep(el); 796 retval = CC_NORM; 797 } 798 799 /* free elements of array and the array itself */ 800 for (i = 0; matches[i]; i++) 801 el_free(matches[i]); 802 el_free(matches); 803 matches = NULL; 804 805 out: 806 el_free(temp); 807 return retval; 808 } 809 810 /* 811 * el-compatible wrapper around rl_complete; needed for key binding 812 */ 813 /* ARGSUSED */ 814 unsigned char 815 _el_fn_complete(EditLine *el, int ch __attribute__((__unused__))) 816 { 817 return (unsigned char)fn_complete(el, NULL, NULL, 818 break_chars, NULL, NULL, (size_t)100, 819 NULL, NULL, NULL, NULL); 820 } 821