1 files changed, 125 insertions, 0 deletions
diff --git a/usr.sbin/sade/misc.c b/usr.sbin/sade/misc.c
new file mode 100644
index 0000000..e9a5642
--- /dev/null
+++ b/usr.sbin/sade/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;
+}
+