From: Ken Raeburn <raeburn@mit.edu>
Date: Fri, 18 Jun 1999 22:51:40 +0000 (+0000)
Subject: * init_ctx.c (krb5_free_context): Set field pointers to NULL after freeing
X-Git-Tag: krb5-1.1-beta1~94
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=e9a929d3fe5985ba2aaaf54da62021a8f6ae364a;p=krb5.git

* init_ctx.c (krb5_free_context): Set field pointers to NULL after freeing
targets, in case higher-level code retains pointers into the context structure.
From Jeffrey Altman.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@11523 dc483132-0cff-0310-8789-dd5450dbe970
---

diff --git a/src/lib/krb5/krb/ChangeLog b/src/lib/krb5/krb/ChangeLog
index b798f3c94..77a101ed0 100644
--- a/src/lib/krb5/krb/ChangeLog
+++ b/src/lib/krb5/krb/ChangeLog
@@ -1,3 +1,9 @@
+1999-06-18  Ken Raeburn  <raeburn@mit.edu>
+
+	* init_ctx.c (krb5_free_context): Set field pointers to NULL after
+	freeing targets, in case higher-level code retains pointers into
+	the context structure.  (From Jeffrey Altman.)
+
 Thu May 13 17:31:34 1999  Theodore Y. Ts'o  <tytso@mit.edu>
 
 	* init_ctx.c (krb5_init_context): Pass the context to
diff --git a/src/lib/krb5/krb/init_ctx.c b/src/lib/krb5/krb/init_ctx.c
index a61bf708e..2d8759241 100644
--- a/src/lib/krb5/krb/init_ctx.c
+++ b/src/lib/krb5/krb/init_ctx.c
@@ -184,17 +184,25 @@ krb5_free_context(ctx)
      krb5_free_ets(ctx);
      krb5_os_free_context(ctx);
 
-     if (ctx->in_tkt_ktypes)
+     if (ctx->in_tkt_ktypes) {
           free(ctx->in_tkt_ktypes);
+	  ctx->in_tkt_ktypes = 0;
+     }
 
-     if (ctx->tgs_ktypes)
+     if (ctx->tgs_ktypes) {
           free(ctx->tgs_ktypes);
+	  ctx->tgs_ktypes = 0;
+     }
 
-     if (ctx->default_realm)
+     if (ctx->default_realm) {
 	  free(ctx->default_realm);
+	  ctx->default_realm = 0;
+     }
 
-     if (ctx->ser_ctx_count && ctx->ser_ctx)
-	 free(ctx->ser_ctx);
+     if (ctx->ser_ctx_count && ctx->ser_ctx) {
+	  free(ctx->ser_ctx);
+	  ctx->ser_ctx = 0;
+     }
 
      ctx->magic = 0;
      free(ctx);