+#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 */