-
-/***************************************************************************
-* COPYRIGHT NOTICE *
-****************************************************************************
-* ncurses is copyright (C) 1992-1995 *
-* Zeyd M. Ben-Halim *
-* zmbenhal@netcom.com *
-* Eric S. Raymond *
-* esr@snark.thyrsus.com *
-* *
-* Permission is hereby granted to reproduce and distribute ncurses *
-* by any means and for any fee, whether alone or as part of a *
-* larger distribution, in source or in binary form, PROVIDED *
-* this notice is included with any such distribution, and is not *
-* removed from any of its header files. Mention of ncurses in any *
-* applications linked with it is highly appreciated. *
-* *
-* ncurses comes AS IS with no warranty, implied or expressed. *
-* *
-***************************************************************************/
+/****************************************************************************
+ * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ ****************************************************************************/
/*
#include <curses.priv.h>
+#include <ctype.h>
#include <term.h>
#include <tic.h>
#include <term_entry.h>
#include <fcntl.h>
#endif
-MODULE_ID("$Id: read_termcap.c,v 1.21 1996/12/21 14:24:06 tom Exp $")
+MODULE_ID("$Id: read_termcap.c,v 1.27 1998/02/11 12:13:58 tom Exp $")
+
+#ifdef __EMX__
+#define is_pathname(s) ((((s) != 0) && ((s)[0] == '/')) \
+ || (((s)[0] != 0) && ((s)[1] == ':')))
+#else
+#define is_pathname(s) ((s) != 0 && (s)[0] == '/')
+#endif
#define TC_SUCCESS 0
#define TC_UNRESOLVED -1
#define TC_SYS_ERR -3
#define TC_REF_LOOP -4
-#ifdef USE_GETCAP
-/*
- * Copyright (c) 1980, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgment:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/* static char sccsid[] = "@(#)termcap.c 8.1 (Berkeley) 6/4/93" */
-
-#define PBUFSIZ 512 /* max length of filename path */
-#define PVECSIZ 32 /* max number of names in path */
+#if USE_GETCAP
-static char *_nc_cgetcap(char *, const char *, int);
-static int _nc_cgetent(char **, int *, char **, const char *);
+#if HAVE_BSD_CGETENT
+#define _nc_cgetcap cgetcap
+#define _nc_cgetent(buf, oline, db_array, name) cgetent(buf, db_array, name)
+#define _nc_cgetmatch cgetmatch
+#define _nc_cgetset cgetset
+#else
static int _nc_cgetmatch(char *, const char *);
-static int _nc_cgetset(const char *);
static int _nc_getent(char **, unsigned int *, int *, int, char **, int, const char *, int, char *);
static int _nc_nfcmp(const char *, char *);
-static int _nc_tgetent(char *, char **, int *, const char *);
-
-/*
- * termcap - routines for dealing with the terminal capability data base
- *
- * BUG: Should use a "last" pointer in tbuf, so that searching
- * for capabilities alphabetically would not be a n**2/2
- * process when large numbers of capabilities are given.
- * Note: If we add a last pointer now we will screw up the
- * tc capability. We really should compile termcap.
- *
- * Essentially all the work here is scanning and decoding escapes in string
- * capabilities. We don't use stdio because the editor doesn't, and because
- * living w/o it is not hard.
- */
-
-static char *tbuf; /* termcap buffer */
-
-/*
- * Get an entry for terminal name in buffer bp from the termcap file.
- */
-static int
-_nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
-{
- static char *the_source;
-
- register char *p;
- register char *cp;
- char *dummy;
- char **fname;
- char *home;
- int i;
- char pathbuf[PBUFSIZ]; /* holds raw path of filenames */
- char *pathvec[PVECSIZ]; /* to point to names in pathbuf */
- char **pvec; /* holds usable tail of path vector */
- char *termpath;
-
- fname = pathvec;
- pvec = pathvec;
- tbuf = bp;
- p = pathbuf;
- cp = getenv("TERMCAP");
-
- /*
- * TERMCAP can have one of two things in it. It can be the name of a
- * file to use instead of /etc/termcap. In this case it better start
- * with a "/". Or it can be an entry to use so we don't have to read
- * the file. In this case it has to already have the newlines crunched
- * out. If TERMCAP does not hold a file name then a path of names is
- * searched instead. The path is found in the TERMPATH variable, or
- * becomes "$HOME/.termcap /etc/termcap" if no TERMPATH exists.
- */
- if (!cp || *cp != '/') { /* no TERMCAP or it holds an entry */
- if ((termpath = getenv("TERMPATH")) != 0) {
- strncpy(pathbuf, termpath, sizeof(pathbuf)-1);
- } else {
- if ((home = getenv("HOME")) != 0) { /* setup path */
- p += strlen(home); /* path, looking in */
- strcpy(pathbuf, home); /* $HOME first */
- *p++ = '/';
- } /* if no $HOME look in current directory */
-#define MY_PATH_DEF ".termcap /etc/termcap /usr/share/misc/termcap"
- strncpy(p, MY_PATH_DEF, PBUFSIZ - (p - pathbuf));
- }
- }
- else /* user-defined name in TERMCAP */
- strncpy(pathbuf, cp, PBUFSIZ); /* still can be tokenized */
-
- *fname++ = pathbuf; /* tokenize path into vector of names */
- while (*++p) {
- if (*p == ' ' || *p == ':') {
- *p = '\0';
- while (*++p)
- if (*p != ' ' && *p != ':')
- break;
- if (*p == '\0')
- break;
- *fname++ = p;
- if (fname >= pathvec + PVECSIZ) {
- fname--;
- break;
- }
- }
- }
- *fname = 0; /* mark end of vector */
- if (cp && *cp && *cp != '/') {
- if (_nc_cgetset(cp) < 0)
- return(TC_SYS_ERR);
- }
-
- i = _nc_cgetent(&dummy, lineno, pathvec, name);
-
- if (i >= 0)
- strcpy(bp, dummy);
-
- FreeIfNeeded(dummy);
- FreeIfNeeded(the_source);
- the_source = 0;
-
- if (i >= 0) {
- the_source = malloc(strlen(pathvec[i]) + 1);
- if (the_source != 0)
- *sourcename = strcpy(the_source, pathvec[i]);
- }
-
- return(i);
-}
/*-
* Copyright (c) 1992, 1993
* Insert tc'ed record into our record.
*/
s = tcstart + newilen;
- memmove(s, tcend, rp - tcend);
- memmove(tcstart, newicap, newilen);
+ memmove(s, tcend, (size_t)(rp - tcend));
+ memmove(tcstart, newicap, (size_t)newilen);
rp += diff;
free(icap);
return (ret);
}
+#endif /* HAVE_BSD_CGETENT */
+
+/*
+ * Since ncurses provides its own 'tgetent()', we cannot use the native one.
+ * So we reproduce the logic to get down to cgetent() -- or our cut-down
+ * version of that -- to circumvent the problem of configuring against the
+ * termcap library.
+ */
+#define USE_BSD_TGETENT 1
+
+#if USE_BSD_TGETENT
+/*
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgment:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* static char sccsid[] = "@(#)termcap.c 8.1 (Berkeley) 6/4/93" */
+
+#define PBUFSIZ 512 /* max length of filename path */
+#define PVECSIZ 32 /* max number of names in path */
+#define TBUFSIZ (2048*2)
+
+static char *tbuf;
+
+/*
+ * On entry, srcp points to a non ':' character which is the beginning of the
+ * token, if any. We'll try to return a string that doesn't end with a ':'.
+ */
+static char *
+get_tc_token(char **srcp, int *endp)
+{
+ int ch;
+ bool found = FALSE;
+ char *s, *base;
+ char *tok = 0;
+
+ *endp = TRUE;
+ for (s = base = *srcp; *s != '\0'; ) {
+ ch = *s++;
+ if (ch == '\\') {
+ if (*s == '\0') {
+ break;
+ } else if (*s++ == '\n') {
+ while (isspace(*s))
+ s++;
+ } else {
+ found = TRUE;
+ }
+ } else if (ch == ':') {
+ if (found) {
+ tok = base;
+ s[-1] = '\0';
+ *srcp = s;
+ *endp = FALSE;
+ break;
+ }
+ base = s;
+ } else if (isgraph(ch)) {
+ found = TRUE;
+ }
+ }
+
+ /* malformed entry may end without a ':' */
+ if (tok == 0 && found) {
+ tok = base;
+ }
+
+ return tok;
+}
+
+static char *
+copy_tc_token(char *dst, const char *src, size_t len)
+{
+ int ch;
+
+ while ((ch = *src++) != '\0') {
+ if (ch == '\\' && *src == '\n') {
+ while (isspace(*src))
+ src++;
+ continue;
+ }
+ if (--len == 0) {
+ dst = 0;
+ break;
+ }
+ *dst++ = ch;
+ }
+ return dst;
+}
+
+/*
+ * Get an entry for terminal name in buffer bp from the termcap file.
+ */
+static int
+_nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
+{
+ static char *the_source;
+
+ register char *p;
+ register char *cp;
+ char *dummy;
+ char **fname;
+ char *home;
+ int i;
+ char pathbuf[PBUFSIZ]; /* holds raw path of filenames */
+ char *pathvec[PVECSIZ]; /* to point to names in pathbuf */
+ char **pvec; /* holds usable tail of path vector */
+ char *termpath;
+
+ fname = pathvec;
+ pvec = pathvec;
+ tbuf = bp;
+ p = pathbuf;
+ cp = getenv("TERMCAP");
+
+ /*
+ * TERMCAP can have one of two things in it. It can be the name of a
+ * file to use instead of /etc/termcap. In this case it better start
+ * with a "/". Or it can be an entry to use so we don't have to read
+ * the file. In this case it has to already have the newlines crunched
+ * out. If TERMCAP does not hold a file name then a path of names is
+ * searched instead. The path is found in the TERMPATH variable, or
+ * becomes "$HOME/.termcap /etc/termcap" if no TERMPATH exists.
+ */
+ if (!is_pathname(cp)) { /* no TERMCAP or it holds an entry */
+ if ((termpath = getenv("TERMPATH")) != 0) {
+ strncpy(pathbuf, termpath, sizeof(pathbuf)-1);
+ } else {
+ if ((home = getenv("HOME")) != 0) { /* setup path */
+ p += strlen(home); /* path, looking in */
+ strcpy(pathbuf, home); /* $HOME first */
+ *p++ = '/';
+ } /* if no $HOME look in current directory */
+#define MY_PATH_DEF ".termcap /etc/termcap /usr/share/misc/termcap"
+ strncpy(p, MY_PATH_DEF, (size_t)(PBUFSIZ - (p - pathbuf)));
+ }
+ }
+ else /* user-defined name in TERMCAP */
+ strncpy(pathbuf, cp, PBUFSIZ); /* still can be tokenized */
+
+ *fname++ = pathbuf; /* tokenize path into vector of names */
+ while (*++p) {
+ if (*p == ' ' || *p == ':') {
+ *p = '\0';
+ while (*++p)
+ if (*p != ' ' && *p != ':')
+ break;
+ if (*p == '\0')
+ break;
+ *fname++ = p;
+ if (fname >= pathvec + PVECSIZ) {
+ fname--;
+ break;
+ }
+ }
+ }
+ *fname = 0; /* mark end of vector */
+ if (is_pathname(cp)) {
+ if (_nc_cgetset(cp) < 0) {
+ return(TC_SYS_ERR);
+ }
+ }
+
+ i = _nc_cgetent(&dummy, lineno, pathvec, name);
+
+ /* ncurses' termcap-parsing routines cannot handle multiple adjacent
+ * empty fields, and mistakenly use the last valid cap entry instead of
+ * the first (breaks tc= includes)
+ */
+ if (i >= 0) {
+ char *pd, *ps, *tok;
+ int endflag = FALSE;
+ char *list[1023];
+ size_t n, count = 0;
+
+ pd = bp;
+ ps = dummy;
+ while (!endflag && (tok = get_tc_token(&ps, &endflag)) != 0) {
+ bool ignore = FALSE;
+
+ for (n = 1; n < count; n++) {
+ char *s = list[n];
+ if (s[0] == tok[0]
+ && s[1] == tok[1]) {
+ ignore = TRUE;
+ break;
+ }
+ }
+ if (ignore != TRUE) {
+ list[count++] = tok;
+ pd = copy_tc_token(pd, tok, TBUFSIZ - (2+pd-bp));
+ if (pd == 0) {
+ i = -1;
+ break;
+ }
+ *pd++ = ':';
+ *pd = '\0';
+ }
+ }
+ }
+
+ FreeIfNeeded(dummy);
+ FreeIfNeeded(the_source);
+ the_source = 0;
+
+ /* This is not related to the BSD cgetent(), but to fake up a suitable
+ * filename for ncurses' error reporting. (If we are not using BSD
+ * cgetent, then it is the actual filename).
+ */
+ if (i >= 0) {
+ the_source = malloc(strlen(pathvec[i]) + 1);
+ if (the_source != 0)
+ *sourcename = strcpy(the_source, pathvec[i]);
+ }
+
+ return(i);
+}
+#endif /* USE_BSD_TGETENT */
#endif /* USE_GETCAP */
int _nc_read_termcap_entry(const char *const tn, TERMTYPE *const tp)
{
int found = FALSE;
ENTRY *ep;
+#if USE_GETCAP_CACHE
char cwd_buf[PATH_MAX];
-#ifndef USE_GETCAP
+#endif
+#if USE_GETCAP
+ char tc[TBUFSIZ];
+ static char *source;
+ static int lineno;
+
+ /* we're using getcap(3) */
+ if (_nc_tgetent(tc, &source, &lineno, tn) < 0)
+ return (ERR);
+
+ _nc_curr_line = lineno;
+ _nc_set_source(source);
+ _nc_read_entry_source((FILE *)0, tc, FALSE, FALSE, NULLHOOK);
+#else
/*
* Here is what the 4.4BSD termcap(3) page prescribes:
*
if ((tc = getenv("TERMCAP")) != 0)
{
- if (tc[0] == '/') /* interpret as a filename */
+ if (is_pathname(tc)) /* interpret as a filename */
{
termpaths[0] = tc;
termpaths[filecount = 1] = 0;
}
}
}
-#else
- char tc[2048 * 2];
- static char *source;
- static int lineno;
-
- /* we're using getcap(3) */
- if (_nc_tgetent(tc, &source, &lineno, tn) <= 0)
- return (ERR);
-
- _nc_curr_line = lineno;
- _nc_set_source(source);
- _nc_read_entry_source((FILE *)0, tc, FALSE, FALSE, NULLHOOK);
-#endif
+#endif /* USE_GETCAP */
if (_nc_head == 0)
return(ERR);
_nc_resolve_uses();
/* find a terminal matching tn, if we can */
+#if USE_GETCAP_CACHE
if (getcwd(cwd_buf, sizeof(cwd_buf)) != 0)
{
_nc_set_writedir((char *)0); /* note: this does a chdir */
+#endif
for_entry_list(ep) {
if (_nc_name_match(ep->tterm.term_names, tn, "|:"))
{
break;
}
}
+#if USE_GETCAP_CACHE
chdir(cwd_buf);
}
+#endif
_nc_free_entries(_nc_head);
return(found);
projects / ncurses.git / blobdiff