From: Theodore Tso <tytso@mit.edu>
Date: Thu, 21 Dec 1995 23:39:45 +0000 (+0000)
Subject: In the case of SCC_OPEN_AND_ERASE, unlink the filename first, in case
X-Git-Tag: krb5-1.0-beta6~675
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=be92d20ddd4a55d63dd68592e8206bb8f7004ab2;p=krb5.git

In the case of SCC_OPEN_AND_ERASE, unlink the filename first, in case
there's a symbolic link lurking about.  (We should do an exclusive
open then, but there's no such thing in stdio.)

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@7244 dc483132-0cff-0310-8789-dd5450dbe970
---

diff --git a/src/lib/krb5/ccache/stdio/ChangeLog b/src/lib/krb5/ccache/stdio/ChangeLog
index f36b324bf..e7059f7b3 100644
--- a/src/lib/krb5/ccache/stdio/ChangeLog
+++ b/src/lib/krb5/ccache/stdio/ChangeLog
@@ -1,3 +1,10 @@
+Thu Dec 21 18:33:39 1995  Theodore Y. Ts'o  <tytso@dcl>
+
+	* scc_maybe.c (krb5_scc_open_file): In the case of
+		SCC_OPEN_AND_ERASE, unlink the filename first, in case
+		there's a symbolic link lurking about.  (We should do an
+		exclusive open then, but there's no such thing in stdio.)
+
 Mon Sep 25 16:56:51 1995  Theodore Y. Ts'o  <tytso@dcl>
 
 	* Makefile.in: Removed "foo:: foo-$(WHAT)" lines from the
diff --git a/src/lib/krb5/ccache/stdio/scc_maybe.c b/src/lib/krb5/ccache/stdio/scc_maybe.c
index 706b10bf9..5a535e16c 100644
--- a/src/lib/krb5/ccache/stdio/scc_maybe.c
+++ b/src/lib/krb5/ccache/stdio/scc_maybe.c
@@ -92,6 +92,9 @@ krb5_scc_open_file (context, id, mode)
 #ifdef ANSI_STDIO
      switch(mode) {
      case SCC_OPEN_AND_ERASE:
+	 unlink(data->filename);
+	 /* XXX should do an exclusive open here, but no way to do */
+	 /* this under stdio */
 	 open_flag = "wb+";
 	 break;
      case SCC_OPEN_RDWR:
@@ -105,6 +108,9 @@ krb5_scc_open_file (context, id, mode)
 #else
      switch(mode) {
      case SCC_OPEN_AND_ERASE:
+	 unlink(data->filename);
+	 /* XXX should do an exclusive open here, but no way to do */
+	 /* this under stdio */
 	 open_flag = "w+";
 	 break;
      case SCC_OPEN_RDWR: