150624Speter/* A portion of this file is from ncurses: */ 250624Speter/*************************************************************************** 350624Speter* COPYRIGHT NOTICE * 450624Speter**************************************************************************** 550624Speter* ncurses is copyright (C) 1992-1995 * 650624Speter* Zeyd M. Ben-Halim * 750624Speter* zmbenhal@netcom.com * 850624Speter* Eric S. Raymond * 950624Speter* esr@snark.thyrsus.com * 1050624Speter* * 1150624Speter* Permission is hereby granted to reproduce and distribute ncurses * 1250624Speter* by any means and for any fee, whether alone or as part of a * 1350624Speter* larger distribution, in source or in binary form, PROVIDED * 1450624Speter* this notice is included with any such distribution, and is not * 1550624Speter* removed from any of its header files. Mention of ncurses in any * 1650624Speter* applications linked with it is highly appreciated. * 1750624Speter* * 1850624Speter* ncurses comes AS IS with no warranty, implied or expressed. * 1950624Speter* * 2050624Speter***************************************************************************/ 2150624Speter 2250624Speter#include <curses.priv.h> 2350624Speter 2450624Speter#include <string.h> 2550624Speter#include <term.h> 2650624Speter#include <tic.h> 2750624Speter#include <term_entry.h> 2850624Speter 2950624Speter/* The rest is from BSD */ 3050624Speter/* 3150624Speter * Copyright (c) 1980, 1993 3250624Speter * The Regents of the University of California. All rights reserved. 3350624Speter * 3450624Speter * Redistribution and use in source and binary forms, with or without 3550624Speter * modification, are permitted provided that the following conditions 3650624Speter * are met: 3750624Speter * 1. Redistributions of source code must retain the above copyright 3850624Speter * notice, this list of conditions and the following disclaimer. 3950624Speter * 2. Redistributions in binary form must reproduce the above copyright 4050624Speter * notice, this list of conditions and the following disclaimer in the 4150624Speter * documentation and/or other materials provided with the distribution. 4250624Speter * 4. Neither the name of the University nor the names of its contributors 4350624Speter * may be used to endorse or promote products derived from this software 4450624Speter * without specific prior written permission. 4550624Speter * 4650624Speter * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 4750624Speter * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4850624Speter * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4950624Speter * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 5050624Speter * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 5150624Speter * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 5250624Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 5350624Speter * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 5450624Speter * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5550624Speter * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5650624Speter * SUCH DAMAGE. 5750624Speter */ 5850624Speter 5984214Sdillon#include <sys/cdefs.h> 6084214Sdillon__FBSDID("$FreeBSD$"); 6184214Sdillon 6250624Speter#ifndef lint 6350624Speterstatic const char sccsid[] = "@(#)termcap.c 8.1 (Berkeley) 6/4/93"; 6450624Speter#endif /* not lint */ 6550624Speter 6650624Speter#include <stdio.h> 6750624Speter#include <ctype.h> 6850624Speter#include <stdlib.h> 6950624Speter#include <string.h> 7050624Speter#include <unistd.h> 7150624Speter#include <sys/param.h> 7250624Speter#include "pathnames.h" 7350624Speter 7450624Speter#define PBUFSIZ MAXPATHLEN /* max length of filename path */ 7550624Speter#define PVECSIZ 32 /* max number of names in path */ 7650624Speter#define TBUFSIZ 1024 /* max length of _nc_tgetent buffer */ 7750624Speter 7850624Speterchar _nc_termcap[TBUFSIZ + 1]; /* Last getcap, provided to tgetent() emul */ 7950624Speter 8050624Speter/* 8150624Speter * termcap - routines for dealing with the terminal capability data base 8250624Speter * 8350624Speter * BUG: Should use a "last" pointer in tbuf, so that searching 8450624Speter * for capabilities alphabetically would not be a n**2/2 8550624Speter * process when large numbers of capabilities are given. 8650624Speter * Note: If we add a last pointer now we will screw up the 8750624Speter * tc capability. We really should compile termcap. 8850624Speter * 8950624Speter * Essentially all the work here is scanning and decoding escapes 9050624Speter * in string capabilities. We don't use stdio because the editor 9150624Speter * doesn't, and because living w/o it is not hard. 9250624Speter */ 9350624Speter 9450624Speter/* 9550624Speter * Get an entry for terminal name in buffer _nc_termcap from the termcap 9650624Speter * file. 9750624Speter */ 9850624Speterint 9950624Speter_nc_read_termcap_entry(const char *const name, TERMTYPE *const tp) 10050624Speter{ 10150624Speter ENTRY *ep; 10292913Sobrien char *p; 10392913Sobrien char *cp; 10450624Speter char *dummy; 10550624Speter char **fname; 10650624Speter char *home; 10750624Speter int i; 10850624Speter char pathbuf[PBUFSIZ]; /* holds raw path of filenames */ 10950624Speter char *pathvec[PVECSIZ]; /* to point to names in pathbuf */ 11050624Speter char **pvec; /* holds usable tail of path vector */ 11150624Speter char *termpath; 11250624Speter 11350624Speter _nc_termcap[0] = '\0'; /* in case */ 11450624Speter dummy = NULL; 11550624Speter fname = pathvec; 11650624Speter pvec = pathvec; 11750624Speter p = pathbuf; 11850624Speter cp = getenv("TERMCAP"); 11950624Speter /* 12050624Speter * TERMCAP can have one of two things in it. It can be the 12150624Speter * name of a file to use instead of /etc/termcap. In this 12250624Speter * case it better start with a "/". Or it can be an entry to 12350624Speter * use so we don't have to read the file. In this case it 12450624Speter * has to already have the newlines crunched out. If TERMCAP 12550624Speter * does not hold a file name then a path of names is searched 12650624Speter * instead. The path is found in the TERMPATH variable, or 12750624Speter * becomes "$HOME/.termcap /etc/termcap" if no TERMPATH exists. 12850624Speter */ 12950624Speter if (!cp || *cp != '/') { /* no TERMCAP or it holds an entry */ 13050624Speter if ( (termpath = getenv("TERMPATH")) ) 13150624Speter strncpy(pathbuf, termpath, PBUFSIZ); 13250624Speter else { 13350624Speter if ( (home = getenv("HOME")) ) {/* set up default */ 13450624Speter strncpy(pathbuf, home, PBUFSIZ - 1); /* $HOME first */ 13550624Speter pathbuf[PBUFSIZ - 2] = '\0'; /* -2 because we add a slash */ 13650624Speter p += strlen(pathbuf); /* path, looking in */ 13750624Speter *p++ = '/'; 13850624Speter } /* if no $HOME look in current directory */ 13950624Speter strncpy(p, _PATH_DEF, PBUFSIZ - (p - pathbuf)); 14050624Speter } 14150624Speter } 14250624Speter else /* user-defined name in TERMCAP */ 14350624Speter strncpy(pathbuf, cp, PBUFSIZ); /* still can be tokenized */ 14450624Speter 14550624Speter /* For safety */ 14650624Speter if (issetugid()) 14750624Speter strcpy(pathbuf, _PATH_DEF_SEC); 14850624Speter 14950624Speter pathbuf[PBUFSIZ - 1] = '\0'; 15050624Speter 15150624Speter *fname++ = pathbuf; /* tokenize path into vector of names */ 15250624Speter while (*++p) 15350624Speter if (*p == ' ' || *p == ':') { 15450624Speter *p = '\0'; 15550624Speter while (*++p) 15650624Speter if (*p != ' ' && *p != ':') 15750624Speter break; 15850624Speter if (*p == '\0') 15950624Speter break; 16050624Speter *fname++ = p; 16150624Speter if (fname >= pathvec + PVECSIZ) { 16250624Speter fname--; 16350624Speter break; 16450624Speter } 16550624Speter } 16650624Speter *fname = (char *) 0; /* mark end of vector */ 16750624Speter if (cp && *cp && *cp != '/') 16850624Speter if (cgetset(cp) < 0) 16950624Speter return(-2); 17050624Speter 17150624Speter i = cgetent(&dummy, pathvec, (char *)name); 17250624Speter 17350624Speter if (i == 0) { 17450624Speter char *pd, *ps, *tok, *s, *tcs; 17550624Speter size_t len; 17650624Speter 17750624Speter pd = _nc_termcap; 17850624Speter ps = dummy; 17950624Speter if ((tok = strchr(ps, ':')) == NULL) { 18050624Speter len = strlen(ps); 18150624Speter if (len >= TBUFSIZ) 18250624Speter i = -1; 18350624Speter else 18450624Speter strcpy(pd, ps); 18550624Speter goto done; 18650624Speter } 18750624Speter len = tok - ps + 1; 18850624Speter if (pd + len + 1 - _nc_termcap >= TBUFSIZ) { 18950624Speter i = -1; 19050624Speter goto done; 19150624Speter } 19250624Speter memcpy(pd, ps, len); 19350624Speter ps += len; 19450624Speter pd += len; 19550624Speter *pd = '\0'; 19650624Speter tcs = pd - 1; 19750624Speter for (;;) { 19850624Speter while ((tok = strsep(&ps, ":")) != NULL && 199101752Sru *(tok - 2) != '\\' && 200166130Srafan (*tok == '\0' || *tok == '\\' || !isgraph(UChar(*tok)))) 20150624Speter ; 20250624Speter if (tok == NULL) 20350624Speter break; 20450624Speter for (s = tcs; s != NULL && s[1] != '\0'; 20550624Speter s = strchr(s, ':')) { 20650624Speter s++; 20750624Speter if (s[0] == tok[0] && s[1] == tok[1]) 20850624Speter goto skip_it; 20950624Speter } 21050624Speter len = strlen(tok); 21150624Speter if (pd + len + 1 - _nc_termcap >= TBUFSIZ) { 21250624Speter i = -1; 21350624Speter break; 21450624Speter } 21550624Speter memcpy(pd, tok, len); 21650624Speter pd += len; 21750624Speter *pd++ = ':'; 21850624Speter *pd = '\0'; 21950624Speter skip_it: ; 22050624Speter } 22150624Speter } 22250624Speterdone: 22350624Speter if (dummy) 22450624Speter free(dummy); 22550624Speter 22650624Speter 22750624Speter/* 22850624Speter * From here on is ncurses-specific glue code 22950624Speter */ 23050624Speter 23150624Speter if (i < 0) 232166130Srafan return(TGETENT_ERR); 23350624Speter 23450624Speter _nc_set_source("TERMCAP"); 23553252Speter _nc_read_entry_source((FILE *)NULL, _nc_termcap, FALSE, TRUE, NULLHOOK); 23650624Speter 23750624Speter if (_nc_head == (ENTRY *)NULL) 238166130Srafan return(TGETENT_ERR); 23950624Speter 24050624Speter /* resolve all use references */ 241166130Srafan _nc_resolve_uses2(TRUE, FALSE); 24250624Speter 24350624Speter for_entry_list(ep) 24450624Speter if (_nc_name_match(ep->tterm.term_names, name, "|:")) 24550624Speter { 24650624Speter /* 247166130Srafan * Make a local copy of the terminal capabilities, delinked 248166130Srafan * from the list. 24950624Speter */ 25050624Speter memcpy(tp, &ep->tterm, sizeof(TERMTYPE)); 251166130Srafan _nc_delink_entry(_nc_head, &(ep->tterm)); 252166130Srafan free(ep); 25350624Speter _nc_free_entries(_nc_head); 25450624Speter _nc_head = _nc_tail = NULL; /* do not reuse! */ 25550624Speter 256166130Srafan return TGETENT_YES; /* OK */ 25750624Speter } 25850624Speter 25950624Speter _nc_free_entries(_nc_head); 26050624Speter _nc_head = _nc_tail = NULL; /* do not reuse! */ 261166130Srafan return(TGETENT_NO); /* not found */ 26250624Speter} 263