Here is my first "framework" commit of the new sysinstall. There is a LOT

more to come in the next 24 hours, this is just the first stable result of
8 hours of hacking so far.  The specification format for menus is pretty
much hammered out and the beginnings (very humble) of the doc hierarchy
are present for an example.  It should be quite easy to add a lot more
menus quickly to this since I did go somewhat out of my way to make the
framework easy to work with.  This is NOT the glorious semi-graphical
sysinstall (or whatever its name will be) that the install-geeks are working
on, this is simply the "son of sysinstall" I've been promising to write in
the interim for 2.0.5 and 2.1R (super install doesn't come until 2.2R).

1 files changed, 125 insertions, 0 deletions

diff --git a/release/sysinstall/misc.c b/release/sysinstall/misc.c
new file mode 100644
index 0000000..e9a5642
--- /dev/null
+++ b/release/sysinstall/misc.c
@@ -0,0 +1,125 @@
+/*
+ * Miscellaneous support routines..
+ *
+ * $Id$
+ *
+ * Copyright (c) 1995
+ *	Jordan Hubbard.  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, 
+ *    verbatim and that no modifications are made prior to this 
+ *    point in the file.
+ * 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 acknowledgement:
+ *	This product includes software developed by Jordan Hubbard
+ *	for the FreeBSD Project.
+ * 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``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 JORDAN HUBBARD OR HIS PETS 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, LIFE 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.
+ *
+ */
+
+#include "sysinstall.h"
+#include <ctype.h>
+
+/* Quick check to see if a file is readable */
+Boolean
+file_readable(char *fname)
+{
+    if (!access(fname, F_OK))
+	return TRUE;
+    return FALSE;
+}
+
+/* Quick check to see if a file is executable */
+Boolean
+file_executable(char *fname)
+{
+    if (!access(fname, X_OK))
+	return TRUE;
+    return FALSE;
+}
+
+/* Concatenate two strings into static storage */
+char *
+string_concat(char *one, char *two)
+{
+    static char tmp[FILENAME_MAX];
+
+    strcpy(tmp, one);
+    strcat(tmp, two);
+    return tmp;
+}
+
+/* Clip the whitespace off the end of a string */
+char *
+string_prune(char *str)
+{
+    int len = str ? strlen(str) : 0;
+
+    while (len && isspace(str[len - 1]))
+	str[--len] = '\0';
+    return str;
+}
+
+/* run the whitespace off the front of a string */
+char *
+string_skipwhite(char *str)
+{
+    while (*str && isspace(*str))
+	++str;
+    return str;
+}
+
+/* A free guaranteed to take NULL ptrs */
+void
+safe_free(void *ptr)
+{
+    if (ptr)
+	free(ptr);
+}
+
+/*
+ * These next two are kind of specialized just for building string lists
+ * for dialog_menu().
+ */
+/* Add a string to an item list */
+char **
+item_add(char **list, char *item, int *curr, int *max)
+{
+
+    if (*curr == *max) {
+	*max += 20;
+	list = (char **)realloc(list, sizeof(char *) * *max);
+    }
+    list[(*curr)++] = item;
+    return list;
+}
+
+/* Toss the items out */
+void
+items_free(char **list, int *curr, int *max)
+{
+    safe_free(list);
+    *curr = *max = 0;
+}
+