1 /* A portion of this file is from ncurses: */
2 /***************************************************************************
4 ****************************************************************************
5 * ncurses is copyright (C) 1992-1995 *
7 * zmbenhal@netcom.com *
9 * esr@snark.thyrsus.com *
11 * Permission is hereby granted to reproduce and distribute ncurses *
12 * by any means and for any fee, whether alone or as part of a *
13 * larger distribution, in source or in binary form, PROVIDED *
14 * this notice is included with any such distribution, and is not *
15 * removed from any of its header files. Mention of ncurses in any *
16 * applications linked with it is highly appreciated. *
18 * ncurses comes AS IS with no warranty, implied or expressed. *
20 ***************************************************************************/
22 #include <curses.priv.h>
27 #include <term_entry.h>
29 /* The rest is from BSD */
31 * Copyright (c) 1980, 1993
32 * The Regents of the University of California. All rights reserved.
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 4. Neither the name of the University nor the names of its contributors
43 * may be used to endorse or promote products derived from this software
44 * without specific prior written permission.
46 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 #include <sys/cdefs.h>
60 __FBSDID("$FreeBSD$");
63 static const char sccsid[] = "@(#)termcap.c 8.1 (Berkeley) 6/4/93";
71 #include <sys/param.h>
72 #include "pathnames.h"
74 #define PBUFSIZ MAXPATHLEN /* max length of filename path */
75 #define PVECSIZ 32 /* max number of names in path */
76 #define TBUFSIZ 1024 /* max length of _nc_tgetent buffer */
78 char _nc_termcap[TBUFSIZ + 1]; /* Last getcap, provided to tgetent() emul */
81 * termcap - routines for dealing with the terminal capability data base
83 * BUG: Should use a "last" pointer in tbuf, so that searching
84 * for capabilities alphabetically would not be a n**2/2
85 * process when large numbers of capabilities are given.
86 * Note: If we add a last pointer now we will screw up the
87 * tc capability. We really should compile termcap.
89 * Essentially all the work here is scanning and decoding escapes
90 * in string capabilities. We don't use stdio because the editor
91 * doesn't, and because living w/o it is not hard.
95 * Get an entry for terminal name in buffer _nc_termcap from the termcap
99 _nc_read_termcap_entry(const char *const name, TERMTYPE *const tp)
108 char pathbuf[PBUFSIZ]; /* holds raw path of filenames */
109 char *pathvec[PVECSIZ]; /* to point to names in pathbuf */
110 char **pvec; /* holds usable tail of path vector */
113 _nc_termcap[0] = '\0'; /* in case */
118 cp = getenv("TERMCAP");
120 * TERMCAP can have one of two things in it. It can be the
121 * name of a file to use instead of /etc/termcap. In this
122 * case it better start with a "/". Or it can be an entry to
123 * use so we don't have to read the file. In this case it
124 * has to already have the newlines crunched out. If TERMCAP
125 * does not hold a file name then a path of names is searched
126 * instead. The path is found in the TERMPATH variable, or
127 * becomes "$HOME/.termcap /etc/termcap" if no TERMPATH exists.
129 if (!cp || *cp != '/') { /* no TERMCAP or it holds an entry */
130 if ( (termpath = getenv("TERMPATH")) )
131 strncpy(pathbuf, termpath, PBUFSIZ);
133 if ( (home = getenv("HOME")) ) {/* set up default */
134 strncpy(pathbuf, home, PBUFSIZ - 1); /* $HOME first */
135 pathbuf[PBUFSIZ - 2] = '\0'; /* -2 because we add a slash */
136 p += strlen(pathbuf); /* path, looking in */
138 } /* if no $HOME look in current directory */
139 strncpy(p, _PATH_DEF, PBUFSIZ - (p - pathbuf));
142 else /* user-defined name in TERMCAP */
143 strncpy(pathbuf, cp, PBUFSIZ); /* still can be tokenized */
147 strcpy(pathbuf, _PATH_DEF_SEC);
149 pathbuf[PBUFSIZ - 1] = '\0';
151 *fname++ = pathbuf; /* tokenize path into vector of names */
153 if (*p == ' ' || *p == ':') {
156 if (*p != ' ' && *p != ':')
161 if (fname >= pathvec + PVECSIZ) {
166 *fname = (char *) 0; /* mark end of vector */
167 if (cp && *cp && *cp != '/')
171 i = cgetent(&dummy, pathvec, (char *)name);
174 char *pd, *ps, *tok, *s, *tcs;
179 if ((tok = strchr(ps, ':')) == NULL) {
188 if (pd + len + 1 - _nc_termcap >= TBUFSIZ) {
198 while ((tok = strsep(&ps, ":")) != NULL &&
199 *(tok - 2) != '\\' &&
200 (*tok == '\0' || *tok == '\\' || !isgraph(UChar(*tok))))
204 for (s = tcs; s != NULL && s[1] != '\0';
205 s = strchr(s, ':')) {
207 if (s[0] == tok[0] && s[1] == tok[1])
211 if (pd + len + 1 - _nc_termcap >= TBUFSIZ) {
215 memcpy(pd, tok, len);
228 * From here on is ncurses-specific glue code
234 _nc_set_source("TERMCAP");
235 _nc_read_entry_source((FILE *)NULL, _nc_termcap, FALSE, TRUE, NULLHOOK);
237 if (_nc_head == (ENTRY *)NULL)
240 /* resolve all use references */
241 _nc_resolve_uses2(TRUE, FALSE);
244 if (_nc_name_match(ep->tterm.term_names, name, "|:"))
247 * Make a local copy of the terminal capabilities, delinked
250 memcpy(tp, &ep->tterm, sizeof(TERMTYPE));
251 _nc_delink_entry(_nc_head, &(ep->tterm));
253 _nc_free_entries(_nc_head);
254 _nc_head = _nc_tail = NULL; /* do not reuse! */
256 return TGETENT_YES; /* OK */
259 _nc_free_entries(_nc_head);
260 _nc_head = _nc_tail = NULL; /* do not reuse! */
261 return(TGETENT_NO); /* not found */