From 03382d7ccd5ed3c8bf17b6719df445c2d9c5dea6 Mon Sep 17 00:00:00 2001
From: peter <peter@FreeBSD.org>
Date: Thu, 7 Dec 1995 10:34:59 +0000
Subject: Update the -current sources from the 2.1 branch.

Approved (in spirit) by: jkh
---
 usr.sbin/sade/variable.c | 66 ++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 61 insertions(+), 5 deletions(-)

(limited to 'usr.sbin/sade/variable.c')

diff --git a/usr.sbin/sade/variable.c b/usr.sbin/sade/variable.c
index 9cf6742..5cbaa84 100644
--- a/usr.sbin/sade/variable.c
+++ b/usr.sbin/sade/variable.c
@@ -4,7 +4,7 @@
  * This is probably the last program in the `sysinstall' line - the next
  * generation being essentially a complete rewrite.
  *
- * $Id: variable.c,v 1.5.2.2 1995/06/01 21:04:03 jkh Exp $
+ * $Id: variable.c,v 1.6.2.7 1995/10/26 08:56:18 jkh Exp $
  *
  * Copyright (c) 1995
  *	Jordan Hubbard.  All rights reserved.
@@ -50,21 +50,23 @@ make_variable(char *var, char *value)
 {
     Variable *newvar;
 
-    /* First search to see if it's already there */
+    /* Put it in the environment in any case */
+    setenv(var, value, 1);
+
+    /* Now search to see if it's already in the list */
     for (newvar = VarHead; newvar; newvar = newvar->next) {
 	if (!strcmp(newvar->name, var)) {
 	    strncpy(newvar->value, value, VAR_VALUE_MAX);
-	    setenv(var, value, 1);
 	    return;
 	}
     }
-    setenv(var, value, 1);
+
+    /* No?  Create a new one */
     newvar = (Variable *)safe_malloc(sizeof(Variable));
     strncpy(newvar->name, var, VAR_NAME_MAX);
     strncpy(newvar->value, value, VAR_VALUE_MAX);
     newvar->next = VarHead;
     VarHead = newvar;
-    setenv(newvar->name, newvar->value, 1);
     if (isDebug())
 	msgDebug("Setting variable %s to %s\n", newvar->name, newvar->value);
 }
@@ -74,6 +76,10 @@ variable_set(char *var)
 {
     char tmp[VAR_NAME_MAX + VAR_VALUE_MAX], *cp;
 
+    if (!var)
+	msgFatal("NULL variable name & value passed.");
+    else if (!*var)
+	msgDebug("Warning:  Zero length name & value passed to variable_set()\n");
     strncpy(tmp, var, VAR_NAME_MAX + VAR_VALUE_MAX);
     if ((cp = index(tmp, '=')) == NULL)
 	msgFatal("Invalid variable format: %s", var);
@@ -86,5 +92,55 @@ variable_set2(char *var, char *value)
 {
     if (!var || !value)
 	msgFatal("Null name or value passed to set_variable2!");
+    else if (!*var || !*value)
+	msgDebug("Warning:  Zero length name or value passed to variable_set2()\n");
     make_variable(var, value);
 }
+
+char *
+variable_get(char *var)
+{
+    return getenv(var);
+}
+
+void
+variable_unset(char *var)
+{
+    Variable *vp;
+
+    unsetenv(var);
+
+    /* Now search to see if it's in our list, if we have one.. */
+    if (!VarHead)
+	return;
+    else if (!VarHead->next && !strcmp(VarHead->name, var)) {
+	free(VarHead);
+	VarHead = NULL;
+    }
+    else {
+	for (vp = VarHead; vp; vp = vp->next) {
+	    if (!strcmp(vp->name, var)) {
+		Variable *save = vp->next;
+
+		*vp = *save;
+		safe_free(save);
+		break;
+	    }
+	}
+    }
+}
+
+/* Prompt user for the name of a variable */
+char *
+variable_get_value(char *var, char *prompt)
+{
+    char *cp;
+
+    dialog_clear();
+    if ((cp = msgGetInput(variable_get(var), prompt)) != NULL)
+	variable_set2(var, cp);
+    else
+	cp = NULL;
+    dialog_clear();
+    return cp;
+}
-- 
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