1 /****************************************************************************
2 * Copyright 2018-2019,2020 Thomas E. Dickey *
3 * Copyright 1998-2016,2017 Free Software Foundation, Inc. *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
28 ****************************************************************************/
30 /****************************************************************************
31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
32 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
33 * and: Thomas E. Dickey 1996-on *
34 ****************************************************************************/
37 * read_entry.c -- Routine for reading in a compiled terminfo file
40 #include <curses.priv.h>
41 #include <hashed_db.h>
45 MODULE_ID("$Id: read_entry.c,v 1.157 2020/02/02 23:34:34 tom Exp $")
47 #define TYPE_CALLOC(type,elts) typeCalloc(type, (unsigned)(elts))
49 #define MyNumber(n) (short) LOW_MSB(n)
51 #define SIZEOF_32BITS 4
53 #if NCURSES_USE_DATABASE
54 #if NCURSES_EXT_NUMBERS
56 convert_16bits(char *buf, NCURSES_INT2 *Numbers, int count)
60 size_t size = SIZEOF_SHORT;
61 for (i = 0; i < count; i++) {
65 for (j = 0; j < size; ++j) {
67 Numbers[i] |= (ch << (8 * j));
72 Numbers[i] |= (int) mask;
76 TR(TRACE_DATABASE, ("get Numbers[%d]=%d", i, Numbers[i]));
82 convert_32bits(char *buf, NCURSES_INT2 *Numbers, int count)
86 size_t size = SIZEOF_INT2;
89 assert(sizeof(NCURSES_INT2) == size);
90 for (i = 0; i < count; i++) {
92 for (j = 0; j < size; ++j) {
94 Numbers[i] |= (ch << (8 * j));
96 /* "unsigned" and NCURSES_INT2 are the same size - no sign-extension */
97 TR(TRACE_DATABASE, ("get Numbers[%d]=%d", i, Numbers[i]));
103 convert_32bits(char *buf, NCURSES_INT2 *Numbers, int count)
107 for (i = 0; i < count; i++) {
109 for (j = 0; j < SIZEOF_32BITS; ++j) {
111 value |= (ch << (8 * j));
114 Numbers[i] = ABSENT_NUMERIC;
115 else if (value == -2)
116 Numbers[i] = CANCELLED_NUMERIC;
117 else if (value > MAX_OF_TYPE(NCURSES_INT2))
118 Numbers[i] = MAX_OF_TYPE(NCURSES_INT2);
120 Numbers[i] = (short) value;
121 TR(TRACE_DATABASE, ("get Numbers[%d]=%d", i, Numbers[i]));
127 convert_16bits(char *buf, NCURSES_INT2 *Numbers, int count)
130 for (i = 0; i < count; i++) {
131 if (IS_NEG1(buf + 2 * i))
132 Numbers[i] = ABSENT_NUMERIC;
133 else if (IS_NEG2(buf + 2 * i))
134 Numbers[i] = CANCELLED_NUMERIC;
136 Numbers[i] = MyNumber(buf + 2 * i);
137 TR(TRACE_DATABASE, ("get Numbers[%d]=%d", i, Numbers[i]));
144 convert_strings(char *buf, char **Strings, int count, int size, char *table)
149 for (i = 0; i < count; i++) {
150 if (IS_NEG1(buf + 2 * i)) {
151 Strings[i] = ABSENT_STRING;
152 } else if (IS_NEG2(buf + 2 * i)) {
153 Strings[i] = CANCELLED_STRING;
154 } else if (MyNumber(buf + 2 * i) > size) {
155 Strings[i] = ABSENT_STRING;
157 Strings[i] = (MyNumber(buf + 2 * i) + table);
158 TR(TRACE_DATABASE, ("Strings[%d] = %s", i, _nc_visbuf(Strings[i])));
161 /* make sure all strings are NUL terminated */
162 if (VALID_STRING(Strings[i])) {
163 for (p = Strings[i]; p <= table + size; p++)
166 /* if there is no NUL, ignore the string */
167 if (p > table + size)
168 Strings[i] = ABSENT_STRING;
174 fake_read(char *src, int *offset, int limit, char *dst, unsigned want)
176 int have = (limit - *offset);
179 if ((int) want > have)
180 want = (unsigned) have;
181 memcpy(dst, src + *offset, (size_t) want);
182 *offset += (int) want;
189 #define Read(buf, count) fake_read(buffer, &offset, limit, (char *) buf, (unsigned) count)
191 #define read_shorts(buf, count) \
192 (Read(buf, (count)*SIZEOF_SHORT) == (int) (count)*SIZEOF_SHORT)
194 #define read_numbers(buf, count) \
195 (Read(buf, (count)*(unsigned)size_of_numbers) == (int) (count)*size_of_numbers)
197 #define even_boundary(value) \
198 if ((value) % 2 != 0) Read(buf, 1)
202 _nc_init_termtype(TERMTYPE2 *const tp)
207 tp->num_Booleans = BOOLCOUNT;
208 tp->num_Numbers = NUMCOUNT;
209 tp->num_Strings = STRCOUNT;
210 tp->ext_Booleans = 0;
214 if (tp->Booleans == 0)
215 TYPE_MALLOC(NCURSES_SBOOL, BOOLCOUNT, tp->Booleans);
216 if (tp->Numbers == 0)
217 TYPE_MALLOC(NCURSES_INT2, NUMCOUNT, tp->Numbers);
218 if (tp->Strings == 0)
219 TYPE_MALLOC(char *, STRCOUNT, tp->Strings);
221 for_each_boolean(i, tp)
222 tp->Booleans[i] = FALSE;
224 for_each_number(i, tp)
225 tp->Numbers[i] = ABSENT_NUMERIC;
227 for_each_string(i, tp)
228 tp->Strings[i] = ABSENT_STRING;
231 #if NCURSES_USE_DATABASE
234 valid_shorts(char *buffer, int limit)
238 for (n = 0; n < limit; ++n) {
239 if (MyNumber(buffer + (n * 2)) > 0) {
249 * Return TGETENT_YES if read, TGETENT_NO if not found or garbled.
252 _nc_read_termtype(TERMTYPE2 *ptr, char *buffer, int limit)
255 int name_size, bool_count, num_count, str_count, str_size;
257 char buf[MAX_ENTRY_SIZE + 2];
261 size_t (*convert_numbers) (char *, NCURSES_INT2 *, int);
263 int max_entry_size = MAX_ENTRY_SIZE;
266 (T_CALLED("_nc_read_termtype(ptr=%p, buffer=%p, limit=%d)"),
267 (void *) ptr, buffer, limit));
269 TR(TRACE_DATABASE, ("READ termtype header @%d", offset));
271 memset(ptr, 0, sizeof(*ptr));
273 /* grab the header */
274 if (!read_shorts(buf, 6)
275 || !IS_TIC_MAGIC(buf)) {
276 returnDB(TGETENT_NO);
278 #if NCURSES_EXT_NUMBERS
279 if ((need_ints = (LOW_MSB(buf) == MAGIC2))) {
280 convert_numbers = convert_32bits;
281 size_of_numbers = SIZEOF_INT2;
283 max_entry_size = MAX_ENTRY_SIZE1;
284 convert_numbers = convert_16bits;
285 size_of_numbers = SIZEOF_SHORT;
288 if ((need_ints = (LOW_MSB(buf) == MAGIC2))) {
289 convert_numbers = convert_32bits;
290 size_of_numbers = SIZEOF_32BITS;
292 convert_numbers = convert_16bits;
293 size_of_numbers = SIZEOF_INT2;
298 name_size = MyNumber(buf + 2);
299 bool_count = MyNumber(buf + 4);
300 num_count = MyNumber(buf + 6);
301 str_count = MyNumber(buf + 8);
302 str_size = MyNumber(buf + 10);
305 ("TERMTYPE name_size=%d, bool=%d/%d, num=%d/%d str=%d/%d(%d)",
306 name_size, bool_count, BOOLCOUNT, num_count, NUMCOUNT,
307 str_count, STRCOUNT, str_size));
313 returnDB(TGETENT_NO);
316 want = (unsigned) (str_size + name_size + 1);
317 /* try to allocate space for the string table */
318 if (str_count * SIZEOF_SHORT >= max_entry_size
319 || (string_table = typeMalloc(char, want)) == 0) {
320 returnDB(TGETENT_NO);
323 /* grab the name (a null-terminated string) */
324 want = min(MAX_NAME_SIZE, (unsigned) name_size);
325 ptr->str_table = string_table;
326 ptr->term_names = string_table;
327 if ((have = (unsigned) Read(ptr->term_names, want)) != want) {
328 memset(ptr->term_names + have, 0, (size_t) (want - have));
330 ptr->term_names[want] = '\0';
331 string_table += (want + 1);
333 if (have > MAX_NAME_SIZE)
334 offset = (int) (have - MAX_NAME_SIZE);
336 /* grab the booleans */
337 if ((ptr->Booleans = TYPE_CALLOC(NCURSES_SBOOL,
338 max(BOOLCOUNT, bool_count))) == 0
339 || Read(ptr->Booleans, (unsigned) bool_count) < bool_count) {
340 returnDB(TGETENT_NO);
344 * If booleans end on an odd byte, skip it. The machine they
345 * originally wrote terminfo on must have been a 16-bit
346 * word-oriented machine that would trap out if you tried a
347 * word access off a 2-byte boundary.
349 even_boundary(name_size + bool_count);
351 /* grab the numbers */
352 if (!(ptr->Numbers = TYPE_CALLOC(NCURSES_INT2, max(NUMCOUNT, num_count)))
353 || !read_numbers(buf, num_count)) {
354 returnDB(TGETENT_NO);
356 convert_numbers(buf, ptr->Numbers, num_count);
358 if ((ptr->Strings = TYPE_CALLOC(char *, max(STRCOUNT, str_count))) == 0) {
359 returnDB(TGETENT_NO);
363 /* grab the string offsets */
364 if (!read_shorts(buf, str_count)) {
365 returnDB(TGETENT_NO);
367 /* finally, grab the string table itself */
368 if (Read(string_table, (unsigned) str_size) != str_size) {
369 returnDB(TGETENT_NO);
371 convert_strings(buf, ptr->Strings, str_count, str_size, string_table);
375 ptr->num_Booleans = BOOLCOUNT;
376 ptr->num_Numbers = NUMCOUNT;
377 ptr->num_Strings = STRCOUNT;
380 * Read extended entries, if any, after the normal end of terminfo data.
382 even_boundary(str_size);
383 TR(TRACE_DATABASE, ("READ extended_header @%d", offset));
384 if (_nc_user_definable && read_shorts(buf, 5) && valid_shorts(buf, 5)) {
385 int ext_bool_count = MyNumber(buf + 0);
386 int ext_num_count = MyNumber(buf + 2);
387 int ext_str_count = MyNumber(buf + 4);
388 int ext_str_usage = MyNumber(buf + 6);
389 int ext_str_limit = MyNumber(buf + 8);
390 unsigned need = (unsigned) (ext_bool_count + ext_num_count + ext_str_count);
393 if ((int) need >= (max_entry_size / 2)
394 || ext_str_usage >= max_entry_size
395 || ext_str_limit >= max_entry_size
396 || ext_bool_count < 0
400 || ext_str_limit < 0) {
401 returnDB(TGETENT_NO);
404 ptr->num_Booleans = UShort(BOOLCOUNT + ext_bool_count);
405 ptr->num_Numbers = UShort(NUMCOUNT + ext_num_count);
406 ptr->num_Strings = UShort(STRCOUNT + ext_str_count);
408 TYPE_REALLOC(NCURSES_SBOOL, ptr->num_Booleans, ptr->Booleans);
409 TYPE_REALLOC(NCURSES_INT2, ptr->num_Numbers, ptr->Numbers);
410 TYPE_REALLOC(char *, ptr->num_Strings, ptr->Strings);
412 TR(TRACE_DATABASE, ("extended header: "
422 TR(TRACE_DATABASE, ("READ %d extended-booleans @%d",
423 ext_bool_count, offset));
424 if ((ptr->ext_Booleans = UShort(ext_bool_count)) != 0) {
425 if (Read(ptr->Booleans + BOOLCOUNT, (unsigned)
426 ext_bool_count) != ext_bool_count) {
427 returnDB(TGETENT_NO);
430 even_boundary(ext_bool_count);
432 TR(TRACE_DATABASE, ("READ %d extended-numbers @%d",
433 ext_num_count, offset));
434 if ((ptr->ext_Numbers = UShort(ext_num_count)) != 0) {
435 if (!read_numbers(buf, ext_num_count)) {
436 returnDB(TGETENT_NO);
438 TR(TRACE_DATABASE, ("Before converting extended-numbers"));
439 convert_numbers(buf, ptr->Numbers + NUMCOUNT, ext_num_count);
442 TR(TRACE_DATABASE, ("READ extended-offsets @%d", offset));
443 if ((ext_str_count + (int) need) >= (max_entry_size / 2)) {
444 returnDB(TGETENT_NO);
446 if ((ext_str_count || need)
447 && !read_shorts(buf, ext_str_count + (int) need)) {
448 returnDB(TGETENT_NO);
451 TR(TRACE_DATABASE, ("READ %d bytes of extended-strings @%d",
452 ext_str_limit, offset));
455 ptr->ext_str_table = typeMalloc(char, (size_t) ext_str_limit);
456 if (ptr->ext_str_table == 0) {
457 returnDB(TGETENT_NO);
459 if (Read(ptr->ext_str_table, (unsigned) ext_str_limit) != ext_str_limit) {
460 returnDB(TGETENT_NO);
462 TR(TRACE_DATABASE, ("first extended-string is %s", _nc_visbuf(ptr->ext_str_table)));
465 if ((ptr->ext_Strings = UShort(ext_str_count)) != 0) {
466 int check = (ext_bool_count + ext_num_count + ext_str_count);
469 ("Before computing extended-string capabilities "
470 "str_count=%d, ext_str_count=%d",
471 str_count, ext_str_count));
472 convert_strings(buf, ptr->Strings + str_count, ext_str_count,
473 ext_str_limit, ptr->ext_str_table);
474 for (i = ext_str_count - 1; i >= 0; i--) {
475 TR(TRACE_DATABASE, ("MOVE from [%d:%d] %s",
477 _nc_visbuf(ptr->Strings[i + str_count])));
478 ptr->Strings[i + STRCOUNT] = ptr->Strings[i + str_count];
479 if (VALID_STRING(ptr->Strings[i + STRCOUNT])) {
480 base += (int) (strlen(ptr->Strings[i + STRCOUNT]) + 1);
483 TR(TRACE_DATABASE, ("... to [%d] %s",
485 _nc_visbuf(ptr->Strings[i + STRCOUNT])));
487 TR(TRACE_DATABASE, ("Check table-size: %d/%d", check, ext_str_usage));
490 * Phasing in a proper check will be done "later".
492 if (check != ext_str_usage)
493 returnDB(TGETENT_NO);
498 if (ext_str_count >= (max_entry_size / 2)) {
499 returnDB(TGETENT_NO);
501 if ((ptr->ext_Names = TYPE_CALLOC(char *, need)) == 0) {
502 returnDB(TGETENT_NO);
505 ("ext_NAMES starting @%d in extended_strings, first = %s",
506 base, _nc_visbuf(ptr->ext_str_table + base)));
507 convert_strings(buf + (2 * ext_str_count),
510 ext_str_limit, ptr->ext_str_table + base);
514 ("...done reading terminfo bool %d(%d) num %d(%d) str %d(%d)",
515 ptr->num_Booleans, ptr->ext_Booleans,
516 ptr->num_Numbers, ptr->ext_Numbers,
517 ptr->num_Strings, ptr->ext_Strings));
519 TR(TRACE_DATABASE, ("extend: num_Booleans:%d", ptr->num_Booleans));
521 #endif /* NCURSES_XNAMES */
523 TR(TRACE_DATABASE, ("...done reading terminfo bool %d num %d str %d",
524 bool_count, num_count, str_count));
526 TR(TRACE_DATABASE, ("normal: num_Booleans:%d", ptr->num_Booleans));
530 for (i = bool_count; i < BOOLCOUNT; i++)
531 ptr->Booleans[i] = FALSE;
532 for (i = num_count; i < NUMCOUNT; i++)
533 ptr->Numbers[i] = ABSENT_NUMERIC;
534 for (i = str_count; i < STRCOUNT; i++)
535 ptr->Strings[i] = ABSENT_STRING;
537 returnDB(TGETENT_YES);
542 * _nc_read_file_entry(filename, ptr)
544 * Read the compiled terminfo entry in the given file into the
545 * structure pointed to by ptr, allocating space for the string
549 _nc_read_file_entry(const char *const filename, TERMTYPE2 *ptr)
550 /* return 1 if read, 0 if not found or garbled */
555 if (_nc_access(filename, R_OK) < 0
556 || (fp = fopen(filename, BIN_R)) == 0) {
557 TR(TRACE_DATABASE, ("cannot open terminfo %s (errno=%d)", filename, errno));
561 char buffer[MAX_ENTRY_SIZE + 1];
563 if ((limit = (int) fread(buffer, sizeof(char), sizeof(buffer), fp))
566 TR(TRACE_DATABASE, ("read terminfo %s", filename));
567 if ((code = _nc_read_termtype(ptr, buffer, limit)) == TGETENT_NO) {
568 _nc_free_termtype2(ptr);
581 * Return if if we can build the filename of a ".db" file.
584 make_db_filename(char *filename, unsigned limit, const char *const path)
586 static const char suffix[] = DBM_SUFFIX;
588 size_t lens = sizeof(suffix) - 1;
589 size_t size = strlen(path);
590 size_t test = lens + size;
595 && !strcmp(path + size - lens, suffix))
596 _nc_STRCPY(filename, path, limit);
598 _nc_SPRINTF(filename, _nc_SLIMIT(limit) "%s%s", path, suffix);
606 * Return true if we can build the name of a filesystem entry.
609 make_dir_filename(char *filename,
611 const char *const path,
616 #if NCURSES_USE_TERMCAP
617 if (_nc_is_dir_path(path))
620 unsigned need = (unsigned) (LEAF_LEN + 3 + strlen(path) + strlen(name));
623 _nc_SPRINTF(filename, _nc_SLIMIT(limit)
624 "%s/" LEAF_FMT "/%s", path, *name, name);
632 lookup_b64(int *target, const char **source)
637 * ncurses' quickdump writes only RFC 4648 "url/filename-safe" encoding,
638 * but accepts RFC-3548
640 for (j = 0; j < 4; ++j) {
641 int ch = UChar(**source);
643 if (ch >= 'A' && ch <= 'Z') {
644 target[j] = (ch - 'A');
645 } else if (ch >= 'a' && ch <= 'z') {
646 target[j] = 26 + (ch - 'a');
647 } else if (ch >= '0' && ch <= '9') {
648 target[j] = 52 + (ch - '0');
649 } else if (ch == '-' || ch == '+') {
651 } else if (ch == '_' || ch == '/') {
653 } else if (ch == '=') {
665 decode_hex(const char **source)
671 for (nibble = 0; nibble < 2; ++nibble) {
673 ch = UChar(**source);
675 if (ch >= '0' && ch <= '9') {
677 } else if (ch >= 'A' && ch <= 'F') {
680 } else if (ch >= 'a' && ch <= 'f') {
693 decode_quickdump(char *target, const char *source)
698 if (!strncmp(source, "b64:", (size_t) 4)) {
700 while (*source != '\0') {
702 int ch = lookup_b64(bits, &source);
703 if (ch < 0 || (ch + target - base) >= MAX_ENTRY_SIZE) {
708 *target++ = (char) ((bits[0] << 2) | (bits[1] >> 4));
710 *target++ = (char) ((bits[1] << 4) | (bits[2] >> 2));
712 *target++ = (char) ((bits[2] << 6) | bits[3]);
716 } else if (!strncmp(source, "hex:", (size_t) 4)) {
718 while (*source != '\0') {
719 int ch = decode_hex(&source);
720 if (ch < 0 || (target - base) >= MAX_ENTRY_SIZE) {
724 *target++ = (char) ch;
732 * Build a terminfo pathname and try to read the data. Returns TGETENT_YES on
733 * success, TGETENT_NO on failure.
736 _nc_read_tic_entry(char *filename,
738 const char *const path,
742 int code = TGETENT_NO;
746 char buffer[MAX_ENTRY_SIZE + 1];
750 (T_CALLED("_nc_read_tic_entry(file=%p, path=%s, name=%s)"),
751 filename, path, name));
753 assert(TGETENT_YES == TRUE); /* simplify call for _nc_name_match */
755 if ((used = decode_quickdump(buffer, path)) != 0
756 && (code = _nc_read_termtype(tp, buffer, used)) == TGETENT_YES
757 && (code = _nc_name_match(tp->term_names, name, "|")) == TGETENT_YES) {
758 TR(TRACE_DATABASE, ("loaded quick-dump for %s", name));
759 /* shorten name shown by infocmp */
760 _nc_STRCPY(filename, "$TERMINFO", limit);
763 if (make_db_filename(filename, limit, path)
764 && (capdbp = _nc_db_open(filename, FALSE)) != 0) {
768 char *save = strdup(name);
770 memset(&key, 0, sizeof(key));
772 key.size = strlen(save);
775 * This lookup could return termcap data, which we do not want. We are
776 * looking for compiled (binary) terminfo data.
778 * cgetent uses a two-level lookup. On the first it uses the given
779 * name to return a record containing only the aliases for an entry.
780 * On the second (using that list of aliases as a key), it returns the
781 * content of the terminal description. We expect second lookup to
782 * return data beginning with the same set of aliases.
784 * For compiled terminfo, the list of aliases in the second case will
785 * be null-terminated. A termcap entry will not be, and will run on
786 * into the description. So we can easily distinguish between the two
787 * (source/binary) by checking the lengths.
789 while (_nc_db_get(capdbp, &key, &data) == 0) {
790 char *have = (char *) data.data;
791 used = (int) data.size - 1;
794 if (data.size > key.size
795 && IS_TIC_MAGIC(have)) {
796 code = _nc_read_termtype(tp, have, used);
797 if (code == TGETENT_NO) {
798 _nc_free_termtype2(tp);
805 * Just in case we have a corrupt database, do not waste time with
812 * Prepare for the second level.
819 } else /* may be either filesystem or flat file */
821 if (make_dir_filename(filename, limit, path, name)) {
822 code = _nc_read_file_entry(filename, tp);
824 #if NCURSES_USE_TERMCAP
825 if (code != TGETENT_YES) {
826 code = _nc_read_termcap_entry(name, tp);
827 _nc_SPRINTF(filename, _nc_SLIMIT(PATH_MAX)
828 "%.*s", PATH_MAX - 1, _nc_get_source());
833 #endif /* NCURSES_USE_DATABASE */
836 * Find and read the compiled entry for a given terminal type, if it exists.
837 * We take pains here to make sure no combination of environment variables and
838 * terminal type name can be used to overrun the file buffer.
841 _nc_read_entry2(const char *const name, char *const filename, TERMTYPE2 *const tp)
843 int code = TGETENT_NO;
846 return _nc_read_entry2("", filename, tp);
848 _nc_SPRINTF(filename, _nc_SLIMIT(PATH_MAX)
849 "%.*s", PATH_MAX - 1, name);
851 if (strlen(name) == 0
852 || strcmp(name, ".") == 0
853 || strcmp(name, "..") == 0
854 || _nc_pathlast(name) != 0
855 || strchr(name, NCURSES_PATHSEP) != 0) {
856 TR(TRACE_DATABASE, ("illegal or missing entry name '%s'", name));
858 #if NCURSES_USE_DATABASE
863 _nc_first_db(&state, &offset);
865 while ((path = _nc_next_db(&state, &offset)) != 0) {
866 code = _nc_read_tic_entry(filename, PATH_MAX, path, name, tp);
867 if (code == TGETENT_YES) {
872 #elif NCURSES_USE_TERMCAP
873 if (code != TGETENT_YES) {
874 code = _nc_read_termcap_entry(name, tp);
875 _nc_SPRINTF(filename, _nc_SLIMIT(PATH_MAX)
876 "%.*s", PATH_MAX - 1, _nc_get_source());
883 #if NCURSES_EXT_NUMBERS
885 * This entrypoint is used by tack 1.07
888 _nc_read_entry(const char *const name, char *const filename, TERMTYPE *const tp)
892 rc = _nc_read_entry2(name, filename, &dummy);
893 if (rc == TGETENT_YES)
894 _nc_export_termtype2(tp, &dummy);