Import unmodified (but trimmed) ncurses 5.0 prerelease 990821.vendor/ncurses/5.0-19990821

This contains the full eti (panel, form, menu) extensions.
bmake glue to follow.

Obtained from:	ftp://ftp.clark.net/pub/dickey/ncurses

1 files changed, 557 insertions, 0 deletions

diff --git a/contrib/ncurses/ncurses/tinfo/write_entry.c b/contrib/ncurses/ncurses/tinfo/write_entry.c
new file mode 100644
index 000000000000..4829fa936d01
--- /dev/null
+++ b/contrib/ncurses/ncurses/tinfo/write_entry.c
@@ -0,0 +1,557 @@
+/****************************************************************************
+ * 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>                         *
+ ****************************************************************************/
+
+
+
+/*
+ *	write_entry.c -- write a terminfo structure onto the file system
+ */
+
+#include <curses.priv.h>
+
+#include <sys/stat.h>
+
+#include <tic.h>
+#include <term_entry.h>
+
+#ifndef S_ISDIR
+#define S_ISDIR(mode) ((mode & S_IFMT) == S_IFDIR)
+#endif
+
+#if 0
+#define TRACE_OUT(p) DEBUG(2, p)
+#else
+#define TRACE_OUT(p) /*nothing*/
+#endif
+
+MODULE_ID("$Id: write_entry.c,v 1.47 1999/07/10 20:29:22 tom Exp $")
+
+static int total_written;
+
+static int write_object(FILE *, TERMTYPE *);
+
+static void write_file(char *filename, TERMTYPE *tp)
+{
+	FILE *fp = (_nc_access(filename, W_OK) == 0) ? fopen(filename, "wb") : 0;
+	if (fp == 0) {
+		perror(filename);
+		_nc_syserr_abort("can't open %s/%s", _nc_tic_dir(0), filename);
+	}
+	DEBUG(1, ("Created %s", filename));
+
+	if (write_object(fp, tp) == ERR) {
+		_nc_syserr_abort("error writing %s/%s", _nc_tic_dir(0), filename);
+	}
+	fclose(fp);
+}
+
+/*
+ *	make_directory(char *path)
+ *
+ *	Make a directory if it doesn't exist.
+ */
+static int make_directory(const char *path)
+{
+int	rc;
+struct	stat	statbuf;
+char	fullpath[PATH_MAX];
+const char *destination = _nc_tic_dir(0);
+
+	if (path == destination || *path == '/') {
+		if (strlen(path) + 1 > sizeof(fullpath))
+			return(-1);
+		(void)strcpy(fullpath, path);
+	} else {
+		if (strlen(destination) + strlen(path) + 2 > sizeof(fullpath))
+			return(-1);
+		(void)sprintf(fullpath, "%s/%s", destination, path);
+	}
+
+	if ((rc = stat(path, &statbuf)) < 0) {
+		rc = mkdir(path, 0777);
+	} else {
+		if (_nc_access(path, R_OK|W_OK|X_OK) < 0) {
+			rc = -1;	/* permission denied */
+		} else if (!(S_ISDIR(statbuf.st_mode))) {
+			rc = -1;	/* not a directory */
+		}
+	}
+	return rc;
+}
+
+void  _nc_set_writedir(char *dir)
+/* set the write directory for compiled entries */
+{
+    const char *destination;
+    char actual[PATH_MAX];
+
+    if (dir != 0)
+	(void) _nc_tic_dir(dir);
+    else if (getenv("TERMINFO") != NULL)
+	(void) _nc_tic_dir(getenv("TERMINFO"));
+
+    destination = _nc_tic_dir(0);
+    if (make_directory(destination) < 0)
+    {
+	char	*home = _nc_home_terminfo();
+
+	if (home != 0) {
+	    destination = home;
+	    if (make_directory(destination) < 0)
+		_nc_err_abort("%s: permission denied (errno %d)",
+			destination, errno);
+	}
+    }
+
+    /*
+     * Note: because of this code, this logic should be exercised
+     * *once only* per run.
+     */
+    if (chdir(_nc_tic_dir(destination)) < 0
+     || getcwd(actual, sizeof(actual)) == 0)
+	_nc_err_abort("%s: not a directory", destination);
+    _nc_keep_tic_dir(strdup(actual));
+}
+
+/*
+ *	check_writeable(char code)
+ *
+ *	Miscellaneous initialisations
+ *
+ *	Check for access rights to destination directories
+ *	Create any directories which don't exist.
+ *	Note: there's no reason to return the result of make_directory(), since
+ *	this function is called only in instances where that has to succeed.
+ *
+ */
+
+static void check_writeable(int code)
+{
+static const char dirnames[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+static bool verified[sizeof(dirnames)];
+
+char		dir[2];
+char		*s;
+
+	if (code == 0 || (s = strchr(dirnames, code)) == 0)
+	    _nc_err_abort("Illegal terminfo subdirectory \"%c\"", code);
+
+	if (verified[s-dirnames])
+	    return;
+
+	dir[0] = code;
+	dir[1] = '\0';
+	if (make_directory(dir) < 0) {
+		_nc_err_abort("%s/%s: permission denied", _nc_tic_dir(0), dir);
+	}
+
+	verified[s-dirnames] = TRUE;
+}
+
+/*
+ *	_nc_write_entry()
+ *
+ *	Save the compiled version of a description in the filesystem.
+ *
+ *	make a copy of the name-list
+ *	break it up into first-name and all-but-last-name
+ *	creat(first-name)
+ *	write object information to first-name
+ *	close(first-name)
+ *      for each name in all-but-last-name
+ *	    link to first-name
+ *
+ *	Using 'time()' to obtain a reference for file timestamps is unreliable,
+ *	e.g., with NFS, because the filesystem may have a different time
+ *	reference.  We check for pre-existence of links by latching the first
+ *	timestamp from a file that we create.
+ *
+ *	The _nc_warning() calls will report a correct line number only if
+ *	_nc_curr_line is properly set before the write_entry() call.
+ */
+
+void _nc_write_entry(TERMTYPE *const tp)
+{
+struct stat	statbuf;
+char		name_list[MAX_TERMINFO_LENGTH];
+char		*first_name, *other_names;
+char		*ptr;
+char		filename[PATH_MAX];
+char		linkname[PATH_MAX];
+#if USE_SYMLINKS
+char		symlinkname[PATH_MAX];
+#endif /* USE_SYMLINKS */
+static int	call_count;
+static time_t	start_time;		/* time at start of writes */
+
+	if (call_count++ == 0) {
+		start_time = 0;
+	}
+
+	(void) strcpy(name_list, tp->term_names);
+	DEBUG(7, ("Name list = '%s'", name_list));
+
+	first_name = name_list;
+
+	ptr = &name_list[strlen(name_list) - 1];
+	other_names = ptr + 1;
+
+	while (ptr > name_list  &&  *ptr != '|')
+		ptr--;
+
+	if (ptr != name_list) {
+		*ptr = '\0';
+
+		for (ptr = name_list; *ptr != '\0' && *ptr != '|'; ptr++)
+			continue;
+
+		if (*ptr == '\0')
+			other_names = ptr;
+		else {
+			*ptr = '\0';
+			other_names = ptr + 1;
+		}
+	}
+
+	DEBUG(7, ("First name = '%s'", first_name));
+	DEBUG(7, ("Other names = '%s'", other_names));
+
+	_nc_set_type(first_name);
+
+	if (strlen(first_name) > sizeof(filename)-3)
+		_nc_warning("terminal name too long.");
+
+	sprintf(filename, "%c/%s", first_name[0], first_name);
+
+	/*
+	 * Has this primary name been written since the first call to
+	 * write_entry()?  If so, the newer write will step on the older,
+	 * so warn the user.
+	 */
+	if (start_time > 0 &&
+	    stat(filename, &statbuf) >= 0
+	    && statbuf.st_mtime >= start_time)
+	{
+		_nc_warning("name multiply defined.");
+	}
+
+	check_writeable(first_name[0]);
+	write_file(filename, tp);
+
+	if (start_time == 0) {
+		if (stat(filename, &statbuf) < 0
+		 || (start_time = statbuf.st_mtime) == 0) {
+			_nc_syserr_abort("error obtaining time from %s/%s",
+				_nc_tic_dir(0), filename);
+		}
+	}
+	while (*other_names != '\0') {
+		ptr = other_names++;
+		while (*other_names != '|'  &&	*other_names != '\0')
+			other_names++;
+
+		if (*other_names != '\0')
+			*(other_names++) = '\0';
+
+		if (strlen(ptr) > sizeof(linkname)-3) {
+			_nc_warning("terminal alias %s too long.", ptr);
+			continue;
+		}
+		if (strchr(ptr, '/') != 0) {
+			_nc_warning("cannot link alias %s.", ptr);
+			continue;
+		}
+
+		check_writeable(ptr[0]);
+		sprintf(linkname, "%c/%s", ptr[0], ptr);
+
+		if (strcmp(filename, linkname) == 0) {
+			_nc_warning("self-synonym ignored");
+		}
+		else if (stat(linkname, &statbuf) >= 0	&&
+						statbuf.st_mtime < start_time)
+		{
+			_nc_warning("alias %s multiply defined.", ptr);
+		}
+		else if (_nc_access(linkname, W_OK) == 0)
+#if HAVE_LINK
+		{
+			int code;
+#if USE_SYMLINKS
+			strcpy(symlinkname, "../");
+			strncat(symlinkname, filename, sizeof(symlinkname) - 4);
+			symlinkname[sizeof(symlinkname) - 1] = '\0';
+#endif /* USE_SYMLINKS */
+#if HAVE_REMOVE
+			code = remove(linkname);
+#else
+			code = unlink(linkname);
+#endif
+			if (code != 0 && errno == ENOENT)
+				code = 0;
+#if USE_SYMLINKS
+			if (symlink(symlinkname, linkname) < 0)
+#else
+			if (link(filename, linkname) < 0)
+#endif /* USE_SYMLINKS */
+			{
+			    /*
+			     * If there wasn't anything there, and we cannot
+			     * link to the target because it is the same as the
+			     * target, then the source must be on a filesystem
+			     * that uses caseless filenames, such as Win32, etc.
+			     */
+			    if (code == 0 && errno == EEXIST)
+				_nc_warning("can't link %s to %s", filename, linkname);
+			    else if (code == 0 && errno == EPERM)
+				write_file(linkname, tp);
+			    else
+				_nc_syserr_abort("can't link %s to %s", filename, linkname);
+			}
+			else
+			{
+			    DEBUG(1, ("Linked %s", linkname));
+			}
+		}
+#else /* just make copies */
+		write_file(linkname, tp);
+#endif /* HAVE_LINK */
+	}
+}
+
+#undef LITTLE_ENDIAN	/* BSD/OS defines this as a feature macro */
+#define HI(x)			((x) / 256)
+#define LO(x)			((x) % 256)
+#define LITTLE_ENDIAN(p, x)	(p)[0] = LO(x), (p)[1] = HI(x)
+
+#define WRITE_STRING(str) (fwrite(str, sizeof(char), strlen(str) + 1, fp) == strlen(str) + 1)
+
+static int compute_offsets(char **Strings, int strmax, short *offsets)
+{
+    size_t nextfree = 0;
+    int i;
+
+    for (i = 0; i < strmax; i++) {
+	if (Strings[i] == ABSENT_STRING) {
+	    offsets[i] = -1;
+	} else if (Strings[i] == CANCELLED_STRING) {
+	    offsets[i] = -2;
+	} else {
+	    offsets[i] = nextfree;
+	    nextfree += strlen(Strings[i]) + 1;
+	    TRACE_OUT(("put Strings[%d]=%s(%d)", i, _nc_visbuf(Strings[i]), nextfree));
+	}
+    }
+    return nextfree;
+}
+
+static void convert_shorts(unsigned char *buf, short *Numbers, int count)
+{
+    int i;
+    for (i = 0; i < count; i++) {
+	if (Numbers[i] == -1) {		/* HI/LO won't work */
+	    buf[2*i] = buf[2*i + 1] = 0377;
+	} else if (Numbers[i] == -2) {	/* HI/LO won't work */
+	    buf[2*i] = 0376;
+	    buf[2*i + 1] = 0377;
+	} else {
+	    LITTLE_ENDIAN(buf + 2*i, Numbers[i]);
+	    TRACE_OUT(("put Numbers[%d]=%d", i, Numbers[i]));
+	}
+    }
+}
+
+#define even_boundary(value) \
+	    ((value) % 2 != 0 && fwrite(&zero, sizeof(char), 1, fp) != 1)
+
+static int write_object(FILE *fp, TERMTYPE *tp)
+{
+char		*namelist;
+size_t		namelen, boolmax, nummax, strmax;
+char		zero = '\0';
+size_t		i;
+short		nextfree;
+short		offsets[MAX_ENTRY_SIZE/2];
+unsigned char	buf[MAX_ENTRY_SIZE];
+
+	namelist = tp->term_names;
+	namelen = strlen(namelist) + 1;
+
+	/*
+	 * BOOLWRITE, etc., are less than BOOLCOUNT because we store some
+	 * values internally.
+	 */
+	boolmax = 0;
+	for (i = 0; i < BOOLWRITE; i++) {
+	    if (tp->Booleans[i])
+		boolmax = i+1;
+	}
+
+	nummax = 0;
+	for (i = 0; i < NUMWRITE; i++) {
+	    if (tp->Numbers[i] != ABSENT_NUMERIC)
+		nummax = i+1;
+	}
+
+	strmax = 0;
+	for (i = 0; i < STRWRITE; i++) {
+	    if (tp->Strings[i] != ABSENT_STRING)
+		strmax = i+1;
+	}
+
+	nextfree = compute_offsets(tp->Strings, strmax, offsets);
+
+	/* fill in the header */
+	LITTLE_ENDIAN(buf,    MAGIC);
+	LITTLE_ENDIAN(buf+2,  min(namelen, MAX_NAME_SIZE + 1));
+	LITTLE_ENDIAN(buf+4,  boolmax);
+	LITTLE_ENDIAN(buf+6,  nummax);
+	LITTLE_ENDIAN(buf+8,  strmax);
+	LITTLE_ENDIAN(buf+10, nextfree);
+
+	/* write out the header */
+	TRACE_OUT(("Header of %s @%ld", namelist, ftell(fp)));
+	if (fwrite(buf, 12, 1, fp) != 1
+	    ||  fwrite(namelist, sizeof(char), namelen, fp) != namelen
+	    ||  fwrite(tp->Booleans, sizeof(char), boolmax, fp) != boolmax)
+	    return(ERR);
+
+	if (even_boundary(namelen+boolmax))
+	    return(ERR);
+
+	TRACE_OUT(("Numerics begin at %04lx", ftell(fp)));
+
+	/* the numerics */
+	convert_shorts(buf, tp->Numbers, nummax);
+	if (fwrite(buf, 2, nummax, fp) != nummax)
+	    return(ERR);
+
+	TRACE_OUT(("String offsets begin at %04lx", ftell(fp)));
+
+	/* the string offsets */
+	convert_shorts(buf, offsets, strmax);
+	if (fwrite(buf, 2, strmax, fp) != strmax)
+	    return(ERR);
+
+	TRACE_OUT(("String table begins at %04lx", ftell(fp)));
+
+	/* the strings */
+	for (i = 0; i < strmax; i++)
+	    if (VALID_STRING(tp->Strings[i]))
+		if (!WRITE_STRING(tp->Strings[i]))
+		    return(ERR);
+
+#if NCURSES_XNAMES
+	if (NUM_EXT_NAMES(tp)) {
+	    unsigned extcnt = NUM_EXT_NAMES(tp);
+
+	    if (even_boundary(nextfree))
+		return(ERR);
+
+	    nextfree = compute_offsets(tp->Strings + STRCOUNT, tp->ext_Strings, offsets);
+	    TRACE_OUT(("after extended string capabilities, nextfree=%d", nextfree));
+	    nextfree += compute_offsets(tp->ext_Names, extcnt, offsets + tp->ext_Strings);
+	    TRACE_OUT(("after extended capnames, nextfree=%d", nextfree));
+	    strmax = tp->ext_Strings + extcnt;
+
+	    /*
+	     * Write the extended header
+	     */
+	    LITTLE_ENDIAN(buf+0, tp->ext_Booleans);
+	    LITTLE_ENDIAN(buf+2, tp->ext_Numbers);
+	    LITTLE_ENDIAN(buf+4, tp->ext_Strings);
+	    LITTLE_ENDIAN(buf+6, strmax);
+	    LITTLE_ENDIAN(buf+8, nextfree);
+	    TRACE_OUT(("WRITE extended-header @%ld", ftell(fp)));
+	    if (fwrite(buf, 10, 1, fp) != 1)
+		return(ERR);
+
+	    TRACE_OUT(("WRITE %d booleans @%ld", tp->ext_Booleans, ftell(fp)));
+	    if (tp->ext_Booleans
+	     && fwrite(tp->Booleans + BOOLCOUNT, sizeof(char), tp->ext_Booleans, fp) != tp->ext_Booleans)
+		return(ERR);
+
+	    if (even_boundary(tp->ext_Booleans))
+		return(ERR);
+
+	    TRACE_OUT(("WRITE %d numbers @%ld", tp->ext_Numbers, ftell(fp)));
+	    if (tp->ext_Numbers) {
+		convert_shorts(buf, tp->Numbers + NUMCOUNT, tp->ext_Numbers);
+		if (fwrite(buf, 2, tp->ext_Numbers, fp) != tp->ext_Numbers)
+		    return(ERR);
+	    }
+
+	    /*
+	     * Convert the offsets for the ext_Strings and ext_Names tables,
+	     * in that order.
+	     */
+	    convert_shorts(buf, offsets, strmax);
+	    TRACE_OUT(("WRITE offsets @%ld", ftell(fp)));
+	    if (fwrite(buf, 2, strmax, fp) != strmax)
+		return(ERR);
+
+	    /*
+	     * Write the string table after the offset tables so we do not
+	     * have to do anything about alignment.
+	     */
+	    for (i = 0; i < tp->ext_Strings; i++) {
+		if (VALID_STRING(tp->Strings[i+STRCOUNT])) {
+		    TRACE_OUT(("WRITE ext_Strings[%d]=%s", i, _nc_visbuf(tp->Strings[i+STRCOUNT])));
+		    if (!WRITE_STRING(tp->Strings[i+STRCOUNT]))
+			return(ERR);
+		}
+	    }
+
+	    /*
+	     * Write the extended names
+	     */
+	    for (i = 0; i < extcnt; i++) {
+		TRACE_OUT(("WRITE ext_Names[%d]=%s", i, tp->ext_Names[i]));
+		if (!WRITE_STRING(tp->ext_Names[i]))
+		    return(ERR);
+	    }
+
+	}
+#endif /* NCURSES_XNAMES */
+
+	total_written++;
+	return(OK);
+}
+
+/*
+ * Returns the total number of entries written by this process
+ */
+int _nc_tic_written(void)
+{
+	return total_written;
+}