From: Theodore Tso <tytso@mit.edu>
Date: Tue, 18 Aug 1992 21:44:53 +0000 (+0000)
Subject: Initial revision
X-Git-Tag: krb5-1.0-beta2~143
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=c8f093ab3fa68ffbb7bb8344cafe784ccefa90b4;p=krb5.git

Initial revision

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@2319 dc483132-0cff-0310-8789-dd5450dbe970
---

diff --git a/src/lib/krb5/os/krbfileio.c b/src/lib/krb5/os/krbfileio.c
new file mode 100644
index 000000000..5cbc55a69
--- /dev/null
+++ b/src/lib/krb5/os/krbfileio.c
@@ -0,0 +1,100 @@
+/*
+ * $Source$
+ * $Author$
+ *
+ *
+ * Copyright (c) Hewlett-Packard Company 1991
+ * Released to the Massachusetts Institute of Technology for inclusion
+ * in the Kerberos source code distribution.
+ *
+ * Copyright 1991 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America is assumed
+ *   to require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ * 
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ * 
+ *
+ * krb5_create_secure_file
+ * krb5_sync_disk_file
+ */
+
+#ifdef MODULE_VERSION_ID
+static char *VersionID = "@(#)krbfileio.c	2 - 08/22/91";
+#endif
+
+#include <krb5/krb5.h>
+#include <krb5/libos.h>
+#include <krb5/los-proto.h>
+
+#include <sys/file.h>
+
+#include <sys/types.h>
+#include <krb5/ext-proto.h>
+
+#ifdef apollo
+#   define OPEN_MODE_NOT_TRUSTWORTHY
+#endif
+
+krb5_error_code
+krb5_create_secure_file(pathname)
+    const char * pathname;
+{
+    int fd;
+
+    /*
+     * Create the file with access restricted to the owner
+     */
+    fd = open(pathname, O_RDWR | O_CREAT | O_EXCL, 0600);
+
+#ifdef OPEN_MODE_NOT_TRUSTWORTHY
+    /*
+     * Some systems that support default acl inheritance do not 
+     * apply ownership information from the process - force the file
+     * to have the proper info.
+     */
+    if (fd > -1) {
+        uid_t   uid;
+        gid_t   gid;
+
+        uid = getuid();
+        gid = getgid();
+
+        fchown(fd, uid, gid);
+
+        fchmod(fd, 0600);
+    }
+#endif /* OPEN_MODE_NOT_TRUSTWORTHY */
+
+    if (fd > -1) {
+        close(fd);
+        return 0;
+    } else {
+        return errno;
+    }
+}
+
+krb5_error_code
+krb5_sync_disk_file(fp)
+    FILE *fp;
+{
+    fflush(fp);
+    if (fsync(fileno(fp))) {
+        return errno;
+    }
+
+    return 0;
+}
+