1 /****************************************************************************
2 * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
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8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 * and: Thomas E. Dickey 1996-on *
33 ****************************************************************************/
36 * Termcap compatibility support
38 * If your OS integrator didn't install a terminfo database, you can call
39 * _nc_read_termcap_entry() to support reading and translating capabilities
40 * from the system termcap file. This is a kludge; it will bulk up and slow
41 * down every program that uses ncurses, and translated termcap entries cannot
42 * use full terminfo capabilities. Don't use it unless you absolutely have to;
43 * instead, get your system people to run tic(1) from root on the terminfo
44 * master included with ncurses to translate it into a terminfo database.
46 * If USE_GETCAP is enabled, we use what is effectively a copy of the 4.4BSD
47 * getcap code to fetch entries. There are disadvantages to this; mainly that
48 * getcap(3) does its own resolution, meaning that entries read in in this way
49 * can't reference the terminfo tree. The only thing it buys is faster startup
50 * time, getcap(3) is much faster than our tic parser.
53 #include <curses.priv.h>
56 #include <sys/types.h>
60 MODULE_ID("$Id: read_termcap.c,v 1.74 2010/01/23 17:57:43 tom Exp $")
65 #define TC_NOT_FOUND -1
67 #define TC_REF_LOOP -3
68 #define TC_UNRESOLVED -4 /* this is not returned by BSD cgetent */
70 static NCURSES_CONST char *
73 NCURSES_CONST char *result;
75 if (!use_terminfo_vars() || (result = getenv("TERMPATH")) == 0)
77 T(("TERMPATH is %s", result));
83 * getcap(), cgetent(), etc., are BSD functions. A copy of those was added to
84 * this file in November 1995, derived from the BSD4.4 Lite sources.
86 * The initial adaptation uses 518 lines from that source.
87 * The current source (in 2009) uses 183 lines of BSD4.4 Lite (441 ignoring
93 #define _nc_cgetcap cgetcap
94 #define _nc_cgetent(buf, oline, db_array, name) cgetent(buf, db_array, name)
95 #define _nc_cgetmatch cgetmatch
96 #define _nc_cgetset cgetset
98 static int _nc_cgetmatch(char *, const char *);
99 static int _nc_getent(char **, unsigned *, int *, int, char **, int, const char
101 static int _nc_nfcmp(const char *, char *);
104 * Copyright (c) 1992, 1993
105 * The Regents of the University of California. All rights reserved.
107 * This code is derived from software contributed to Berkeley by
108 * Casey Leedom of Lawrence Livermore National Laboratory.
110 * Redistribution and use in source and binary forms, with or without
111 * modification, are permitted provided that the following conditions
113 * 1. Redistributions of source code must retain the above copyright
114 * notice, this list of conditions and the following disclaimer.
115 * 2. Redistributions in binary form must reproduce the above copyright
116 * notice, this list of conditions and the following disclaimer in the
117 * documentation and/or other materials provided with the distribution.
118 * 3. Neither the name of the University nor the names of its contributors
119 * may be used to endorse or promote products derived from this software
120 * without specific prior written permission.
122 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
123 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
124 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
125 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
126 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
127 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
128 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
129 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
130 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
131 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
135 /* static char sccsid[] = "@(#)getcap.c 8.3 (Berkeley) 3/25/94"; */
139 #define MAX_RECURSION 32 /* maximum getent recursion */
141 static size_t topreclen; /* toprec length */
142 static char *toprec; /* Additional record specified by cgetset() */
143 static int gottoprec; /* Flag indicating retrieval of toprecord */
146 * Cgetset() allows the addition of a user specified buffer to be added to the
147 * database array, in effect "pushing" the buffer on top of the virtual
148 * database. 0 is returned on success, -1 on failure.
151 _nc_cgetset(const char *ent)
154 FreeIfNeeded(toprec);
159 topreclen = strlen(ent);
160 if ((toprec = typeMalloc(char, topreclen + 1)) == 0) {
165 (void) strcpy(toprec, ent);
170 * Cgetcap searches the capability record buf for the capability cap with type
171 * `type'. A pointer to the value of cap is returned on success, 0 if the
172 * requested capability couldn't be found.
174 * Specifying a type of ':' means that nothing should follow cap (:cap:). In
175 * this case a pointer to the terminating ':' or NUL will be returned if cap is
178 * If (cap, '@') or (cap, terminator, '@') is found before (cap, terminator)
182 _nc_cgetcap(char *buf, const char *cap, int type)
184 register const char *cp;
190 * Skip past the current capability field - it's either the
191 * name field if this is the first time through the loop, or
192 * the remainder of a field whose name failed to match cap.
197 else if (*bp++ == ':')
202 * Try to match (cap, type) in buf.
204 for (cp = cap; *cp == *bp && *bp != '\0'; cp++, bp++)
211 if (*bp != '\0' && *bp != ':')
218 return (*bp == '@' ? 0 : bp);
224 * Cgetent extracts the capability record name from the NULL terminated file
225 * array db_array and returns a pointer to a malloc'd copy of it in buf. Buf
226 * must be retained through all subsequent calls to cgetcap, cgetnum, cgetflag,
227 * and cgetstr, but may then be freed.
231 * positive # on success (i.e., the index in db_array)
232 * TC_NOT_FOUND if the requested record couldn't be found
233 * TC_SYS_ERR if a system error was encountered (e.g.,couldn't open a file)
234 * TC_REF_LOOP if a potential reference loop is detected
235 * TC_UNRESOLVED if we had too many recurrences to resolve
238 _nc_cgetent(char **buf, int *oline, char **db_array, const char *name)
242 return (_nc_getent(buf, &dummy, oline, 0, db_array, -1, name, 0, 0));
246 * Getent implements the functions of cgetent. If fd is non-negative,
247 * *db_array has already been opened and fd is the open file descriptor. We
248 * do this to save time and avoid using up file descriptors for tc=
251 * Getent returns the same success/failure codes as cgetent. On success, a
252 * pointer to a malloc'd capability record with all tc= capabilities fully
253 * expanded and its length (not including trailing ASCII NUL) are left in
257 * + Allocate memory incrementally as needed in chunks of size BFRAG
258 * for capability buffer.
259 * + Recurse for each tc=name and interpolate result. Stop when all
260 * names interpolated, a name can't be found, or depth exceeds
263 #define DOALLOC(size) typeRealloc(char, size, record)
266 char **cap, /* termcap-content */
267 unsigned *len, /* length, needed for recursion */
268 int *beginning, /* line-number at match */
269 int in_array, /* index in 'db_array[] */
270 char **db_array, /* list of files to search */
276 register char *r_end, *rp;
284 * Return with ``loop detected'' error if we've recurred more than
285 * MAX_RECURSION times.
287 if (depth > MAX_RECURSION)
288 return (TC_REF_LOOP);
291 * Check if we have a top record from cgetset().
293 if (depth == 0 && toprec != 0 && _nc_cgetmatch(toprec, name) == 0) {
294 if ((record = DOALLOC(topreclen + BFRAG)) == 0) {
298 (void) strcpy(record, toprec);
299 rp = record + topreclen + 1;
306 * Allocate first chunk of memory.
308 if ((record = DOALLOC(BFRAG)) == 0) {
312 rp = r_end = record + BFRAG;
316 * Loop through database array until finding the record.
318 for (current = in_array; db_array[current] != 0; current++) {
322 * Open database if not already open.
325 (void) lseek(fd, (off_t) 0, SEEK_SET);
326 } else if ((_nc_access(db_array[current], R_OK) < 0)
327 || (fd = open(db_array[current], O_RDONLY, 0)) < 0) {
328 /* No error on unfound file. */
339 * Find the requested capability record ...
343 register char *b_end = buf;
344 register char *bp = buf;
349 * There is always room for one more character in record.
350 * R_end always points just past end of record.
351 * Rp always points just past last character in record.
352 * B_end always points just past last character in buf.
353 * Bp always points at next character in buf.
357 int first = lineno + 1;
360 * Read in a line implementing (\, newline)
368 n = read(fd, buf, sizeof(buf));
387 if (rp == record || *(rp - 1) != '\\')
393 * Enforce loop invariant: if no room
394 * left in record buffer, try to get
402 newsize = r_end - record + BFRAG;
403 record = DOALLOC(newsize);
410 r_end = record + newsize;
414 /* loop invariant lets us do this */
418 * If encountered eof check next file.
424 * Toss blank lines and comments.
426 if (*record == '\0' || *record == '#')
430 * See if this is the record we want ...
432 if (_nc_cgetmatch(record, name) == 0
434 || !_nc_nfcmp(nfield, record))) {
437 break; /* found it! */
446 return (TC_NOT_FOUND);
450 * Got the capability record, but now we have to expand all tc=name
451 * references in it ...
454 register char *newicap, *s;
455 register int newilen;
457 int diff, iret, tclen, oline;
458 char *icap, *scan, *tc, *tcstart, *tcend;
462 * There is room for one more character in record.
463 * R_end points just past end of record.
464 * Rp points just past last character in record.
465 * Scan points at remainder of record that needs to be
466 * scanned for tc=name constructs.
469 tc_not_resolved = FALSE;
471 if ((tc = _nc_cgetcap(scan, "tc", '=')) == 0)
475 * Find end of tc=name and stomp on the trailing `:'
476 * (if present) so we can use it to call ourselves.
489 iret = _nc_getent(&icap, &ilen, &oline, current, db_array, fd,
491 newicap = icap; /* Put into a register. */
493 if (iret != TC_SUCCESS) {
495 if (iret < TC_NOT_FOUND) {
501 if (iret == TC_UNRESOLVED)
502 tc_not_resolved = TRUE;
503 /* couldn't resolve tc */
504 if (iret == TC_NOT_FOUND) {
507 tc_not_resolved = TRUE;
512 /* not interested in name field of tc'ed record */
514 while (*s != '\0' && *s++ != ':') ;
515 newilen -= s - newicap;
518 /* make sure interpolated record is `:'-terminated */
520 if (*(s - 1) != ':') {
521 *s = ':'; /* overwrite NUL with : */
526 * Make sure there's enough room to insert the
529 diff = newilen - tclen;
530 if (diff >= r_end - rp) {
531 unsigned pos, tcpos, tcposend;
535 newsize = r_end - record + diff + BFRAG;
536 tcpos = tcstart - record;
537 tcposend = tcend - record;
538 record = DOALLOC(newsize);
546 r_end = record + newsize;
548 tcstart = record + tcpos;
549 tcend = record + tcposend;
553 * Insert tc'ed record into our record.
555 s = tcstart + newilen;
556 memmove(s, tcend, (size_t) (rp - tcend));
557 memmove(tcstart, newicap, (size_t) newilen);
562 * Start scan on `:' so next cgetcap works properly
563 * (cgetcap always skips first field).
570 * Close file (if we opened it), give back any extra memory, and
571 * return capability, length and success.
575 *len = rp - record - 1; /* don't count NUL */
577 if ((record = DOALLOC((size_t) (rp - record))) == 0) {
585 return (TC_UNRESOLVED);
590 * Cgetmatch will return 0 if name is one of the names of the capability
591 * record buf, -1 if not.
594 _nc_cgetmatch(char *buf, const char *name)
596 register const char *np;
600 * Start search at beginning of record.
605 * Try to match a record name.
610 if (*bp == '|' || *bp == ':' || *bp == '\0')
614 } else if (*bp++ != *np++) {
620 * Match failed, skip to next name in record.
622 bp--; /* a '|' or ':' may have stopped the match */
624 if (*bp == '\0' || *bp == ':')
625 return (-1); /* match failed totally */
626 else if (*bp++ == '|')
627 break; /* found next name */
633 * Compare name field of record.
636 _nc_nfcmp(const char *nf, char *rec)
641 for (cp = rec; *cp != ':'; cp++) ;
645 ret = strcmp(nf, rec);
650 #endif /* HAVE_BSD_CGETENT */
653 * Since ncurses provides its own 'tgetent()', we cannot use the native one.
654 * So we reproduce the logic to get down to cgetent() -- or our cut-down
655 * version of that -- to circumvent the problem of configuring against the
658 #define USE_BSD_TGETENT 1
662 * Copyright (c) 1980, 1993
663 * The Regents of the University of California. All rights reserved.
665 * Redistribution and use in source and binary forms, with or without
666 * modification, are permitted provided that the following conditions
668 * 1. Redistributions of source code must retain the above copyright
669 * notice, this list of conditions and the following disclaimer.
670 * 2. Redistributions in binary form must reproduce the above copyright
671 * notice, this list of conditions and the following disclaimer in the
672 * documentation and/or other materials provided with the distribution.
673 * 3. All advertising materials mentioning features or use of this software
674 * must display the following acknowledgment:
675 * This product includes software developed by the University of
676 * California, Berkeley and its contributors.
677 * 4. Neither the name of the University nor the names of its contributors
678 * may be used to endorse or promote products derived from this software
679 * without specific prior written permission.
681 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
682 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
683 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
684 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
685 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
686 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
687 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
688 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
689 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
690 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
694 /* static char sccsid[] = "@(#)termcap.c 8.1 (Berkeley) 6/4/93" */
696 #define PBUFSIZ 512 /* max length of filename path */
697 #define PVECSIZ 32 /* max number of names in path */
698 #define TBUFSIZ (2048*2)
703 * On entry, srcp points to a non ':' character which is the beginning of the
704 * token, if any. We'll try to return a string that doesn't end with a ':'.
707 get_tc_token(char **srcp, int *endp)
715 for (s = base = *srcp; *s != '\0';) {
720 } else if (*s++ == '\n') {
721 while (isspace(UChar(*s)))
726 } else if (ch == ':') {
735 } else if (isgraph(UChar(ch))) {
740 /* malformed entry may end without a ':' */
741 if (tok == 0 && found) {
749 copy_tc_token(char *dst, const char *src, size_t len)
753 while ((ch = *src++) != '\0') {
754 if (ch == '\\' && *src == '\n') {
755 while (isspace(UChar(*src)))
769 * Get an entry for terminal name in buffer bp from the termcap file.
772 _nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
774 static char *the_source;
782 char pathbuf[PBUFSIZ]; /* holds raw path of filenames */
783 char *pathvec[PVECSIZ]; /* to point to names in pathbuf */
784 char **pvec; /* holds usable tail of path vector */
785 NCURSES_CONST char *termpath;
792 cp = use_terminfo_vars()? getenv("TERMCAP") : NULL;
795 * TERMCAP can have one of two things in it. It can be the name of a file
796 * to use instead of /etc/termcap. In this case it better start with a
797 * "/". Or it can be an entry to use so we don't have to read the file.
798 * In this case it has to already have the newlines crunched out. If
799 * TERMCAP does not hold a file name then a path of names is searched
800 * instead. The path is found in the TERMPATH variable, or becomes
801 * "$HOME/.termcap /etc/termcap" if no TERMPATH exists.
803 _nc_str_init(&desc, pathbuf, sizeof(pathbuf));
805 _nc_safe_strcpy(&desc, get_termpath());
806 } else if (!_nc_is_abs_path(cp)) { /* TERMCAP holds an entry */
807 if ((termpath = get_termpath()) != 0) {
808 _nc_safe_strcat(&desc, termpath);
812 if ((home = getenv("HOME")) != 0 && *home != '\0'
813 && strchr(home, ' ') == 0
814 && strlen(home) < sizeof(temp) - 10) { /* setup path */
815 sprintf(temp, "%s/", home); /* $HOME first */
817 /* if no $HOME look in current directory */
818 strcat(temp, ".termcap");
819 _nc_safe_strcat(&desc, temp);
820 _nc_safe_strcat(&desc, " ");
821 _nc_safe_strcat(&desc, get_termpath());
823 } else { /* user-defined name in TERMCAP */
824 _nc_safe_strcat(&desc, cp); /* still can be tokenized */
827 *fname++ = pathbuf; /* tokenize path into vector of names */
829 if (*p == ' ' || *p == NCURSES_PATHSEP) {
832 if (*p != ' ' && *p != NCURSES_PATHSEP)
837 if (fname >= pathvec + PVECSIZ) {
843 *fname = 0; /* mark end of vector */
844 if (_nc_is_abs_path(cp)) {
845 if (_nc_cgetset(cp) < 0) {
850 i = _nc_cgetent(&dummy, lineno, pathvec, name);
852 /* ncurses' termcap-parsing routines cannot handle multiple adjacent
853 * empty fields, and mistakenly use the last valid cap entry instead of
854 * the first (breaks tc= includes)
864 while (!endflag && (tok = get_tc_token(&ps, &endflag)) != 0) {
867 for (n = 1; n < count; n++) {
875 if (ignore != TRUE) {
877 pd = copy_tc_token(pd, tok, TBUFSIZ - (2 + pd - bp));
889 FreeIfNeeded(the_source);
892 /* This is not related to the BSD cgetent(), but to fake up a suitable
893 * filename for ncurses' error reporting. (If we are not using BSD
894 * cgetent, then it is the actual filename).
900 _nc_str_init(&desc, temp, sizeof(temp));
901 _nc_safe_strcpy(&desc, pathvec[i]);
902 _nc_safe_strcat(&desc, ".db");
903 if (_nc_access(temp, R_OK) == 0) {
904 _nc_safe_strcpy(&desc, pathvec[i]);
906 if ((the_source = strdup(temp)) != 0)
907 *sourcename = the_source;
909 if ((the_source = strdup(pathvec[i])) != 0)
910 *sourcename = the_source;
916 #endif /* USE_BSD_TGETENT */
917 #endif /* USE_GETCAP */
922 * Add a filename to the list in 'termpaths[]', checking that we really have
923 * a right to open the file.
927 add_tc(char *termpaths[], char *path, int count)
929 char *save = strchr(path, NCURSES_PATHSEP);
933 && _nc_access(path, R_OK) == 0) {
934 termpaths[count++] = path;
935 T(("Adding termpath %s", path));
937 termpaths[count] = 0;
939 *save = NCURSES_PATHSEP;
942 #define ADD_TC(path, count) filecount = add_tc(termpaths, path, count)
943 #endif /* !USE_GETCAP */
946 _nc_read_termcap_entry(const char *const tn, TERMTYPE *const tp)
948 int found = TGETENT_NO;
951 char cwd_buf[PATH_MAX];
954 char *p, tc[TBUFSIZ];
959 T(("read termcap entry for %s", tn));
962 || strcmp(tn, ".") == 0
963 || strcmp(tn, "..") == 0
964 || _nc_pathlast(tn) != 0) {
965 T(("illegal or missing entry name '%s'", tn));
969 if (use_terminfo_vars() && (p = getenv("TERMCAP")) != 0
970 && !_nc_is_abs_path(p) && _nc_name_match(p, tn, "|:")) {
971 /* TERMCAP holds a termcap entry */
972 strncpy(tc, p, sizeof(tc) - 1);
973 tc[sizeof(tc) - 1] = '\0';
974 _nc_set_source("TERMCAP");
976 /* we're using getcap(3) */
977 if ((status = _nc_tgetent(tc, &source, &lineno, tn)) < 0)
978 return (status == TC_NOT_FOUND ? TGETENT_NO : TGETENT_ERR);
980 _nc_curr_line = lineno;
981 _nc_set_source(source);
983 _nc_read_entry_source((FILE *) 0, tc, FALSE, FALSE, NULLHOOK);
986 * Here is what the 4.4BSD termcap(3) page prescribes:
988 * It will look in the environment for a TERMCAP variable. If found, and
989 * the value does not begin with a slash, and the terminal type name is the
990 * same as the environment string TERM, the TERMCAP string is used instead
991 * of reading a termcap file. If it does begin with a slash, the string is
992 * used as a path name of the termcap file to search. If TERMCAP does not
993 * begin with a slash and name is different from TERM, tgetent() searches
994 * the files $HOME/.termcap and /usr/share/misc/termcap, in that order,
995 * unless the environment variable TERMPATH exists, in which case it
996 * specifies a list of file pathnames (separated by spaces or colons) to be
999 * It goes on to state:
1001 * Whenever multiple files are searched and a tc field occurs in the
1002 * requested entry, the entry it names must be found in the same file or
1003 * one of the succeeding files.
1005 * However, this restriction is relaxed in ncurses; tc references to
1006 * previous files are permitted.
1008 * This routine returns 1 if an entry is found, 0 if not found, and -1 if
1009 * the database is not accessible.
1012 char *tc, *termpaths[MAXPATHS];
1015 bool use_buffer = FALSE;
1018 char pathbuf[PATH_MAX];
1021 struct stat test_stat[MAXPATHS];
1023 termpaths[filecount] = 0;
1024 if (use_terminfo_vars() && (tc = getenv("TERMCAP")) != 0) {
1025 if (_nc_is_abs_path(tc)) { /* interpret as a filename */
1028 } else if (_nc_name_match(tc, tn, "|:")) { /* treat as a capability file */
1030 (void) sprintf(tc_buf, "%.*s\n", (int) sizeof(tc_buf) - 2, tc);
1035 if (normal) { /* normal case */
1036 char envhome[PATH_MAX], *h;
1038 copied = strdup(get_termpath());
1039 for (cp = copied; *cp; cp++) {
1040 if (*cp == NCURSES_PATHSEP)
1042 else if (cp == copied || cp[-1] == '\0') {
1043 ADD_TC(cp, filecount);
1047 #define PRIVATE_CAP "%s/.termcap"
1049 if (use_terminfo_vars() && (h = getenv("HOME")) != NULL && *h != '\0'
1050 && (strlen(h) + sizeof(PRIVATE_CAP)) < PATH_MAX) {
1051 /* user's .termcap, if any, should override it */
1052 (void) strcpy(envhome, h);
1053 (void) sprintf(pathbuf, PRIVATE_CAP, envhome);
1054 ADD_TC(pathbuf, filecount);
1059 * Probably /etc/termcap is a symlink to /usr/share/misc/termcap.
1060 * Avoid reading the same file twice.
1063 for (j = 0; j < filecount; j++) {
1065 if (stat(termpaths[j], &test_stat[j]) != 0
1066 || (test_stat[j].st_mode & S_IFMT) != S_IFREG) {
1069 for (k = 0; k < j; k++) {
1070 if (test_stat[k].st_dev == test_stat[j].st_dev
1071 && test_stat[k].st_ino == test_stat[j].st_ino) {
1078 T(("Path %s is a duplicate", termpaths[j]));
1079 for (k = j + 1; k < filecount; k++) {
1080 termpaths[k - 1] = termpaths[k];
1081 test_stat[k - 1] = test_stat[k];
1089 /* parse the sources */
1091 _nc_set_source("TERMCAP");
1094 * We don't suppress warning messages here. The presumption is
1095 * that since it's just a single entry, they won't be a pain.
1097 _nc_read_entry_source((FILE *) 0, tc_buf, FALSE, FALSE, NULLHOOK);
1101 for (i = 0; i < filecount; i++) {
1103 T(("Looking for %s in %s", tn, termpaths[i]));
1104 if (_nc_access(termpaths[i], R_OK) == 0
1105 && (fp = fopen(termpaths[i], "r")) != (FILE *) 0) {
1106 _nc_set_source(termpaths[i]);
1109 * Suppress warning messages. Otherwise you get 400 lines of
1110 * crap from archaic termcap files as ncurses complains about
1111 * all the obsolete capabilities.
1113 _nc_read_entry_source(fp, (char *) 0, FALSE, TRUE, NULLHOOK);
1121 #endif /* USE_GETCAP */
1124 return (TGETENT_ERR);
1126 /* resolve all use references */
1127 _nc_resolve_uses2(TRUE, FALSE);
1129 /* find a terminal matching tn, if we can */
1130 #if USE_GETCAP_CACHE
1131 if (getcwd(cwd_buf, sizeof(cwd_buf)) != 0) {
1132 _nc_set_writedir((char *) 0); /* note: this does a chdir */
1134 for_entry_list(ep) {
1135 if (_nc_name_match(ep->tterm.term_names, tn, "|:")) {
1137 * Make a local copy of the terminal capabilities, delinked
1141 _nc_delink_entry(_nc_head, &(ep->tterm));
1145 * OK, now try to write the type to user's terminfo directory.
1146 * Next time he loads this, it will come through terminfo.
1148 * Advantage: Second and subsequent fetches of this entry will
1151 * Disadvantage: After the first time a termcap type is loaded
1152 * by its user, editing it in the /etc/termcap file, or in
1153 * TERMCAP, or in a local ~/.termcap, will be ineffective
1154 * unless the terminfo entry is explicitly removed.
1156 #if USE_GETCAP_CACHE
1157 (void) _nc_write_entry(tp);
1159 found = TGETENT_YES;
1163 #if USE_GETCAP_CACHE
1172 NCURSES_EXPORT(void)
1173 _nc_read_termcap(void);
1174 NCURSES_EXPORT(void)
1175 _nc_read_termcap(void)
1178 #endif /* PURE_TERMINFO */