X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=util.cc;h=0aa5efbb8eb521e14f935bc286de8c081067a62c;hb=78376bd08b8f19a73fde4a1d922c743bd0a9dfbf;hp=38f1f1dfa6357c43d8c44d8e915ac17528ca89c9;hpb=fbb042e3bbfe0796b0986fa0ffa9cde75c6e3bce;p=cumulus.git

diff --git a/util.cc b/util.cc
index 38f1f1d..0aa5efb 100644
--- a/util.cc
+++ b/util.cc
@@ -1,11 +1,30 @@
-/* LBS: An LFS-inspired filesystem backup system
- * Copyright (C) 2007  Michael Vrable
+/* Cumulus: Smart Filesystem Backup to Dumb Servers
  *
- * Utility functions for converting various datatypes to text format (and
- * later, for parsing them back, perhaps).
+ * Copyright (C) 2007  The Regents of the University of California
+ * Written by Michael Vrable <mvrable@cs.ucsd.edu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+/* Utility functions for converting various datatypes to text format (and
+ * later, for parsing them back, perhaps). */
+
 #include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
 #include <uuid/uuid.h>
 
 #include <iostream>
@@ -98,3 +117,21 @@ long long parse_int(const string &s)
 {
     return strtoll(s.c_str(), NULL, 0);
 }
+
+/* Mark a file descriptor as close-on-exec. */
+void cloexec(int fd)
+{
+    long flags = fcntl(fd, F_GETFD);
+
+    if (flags < 0)
+        return;
+
+    fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
+}
+
+/* Report a fatal error and exit. */
+void fatal(string msg)
+{
+    fprintf(stderr, "FATAL: %s\n", msg.c_str());
+    exit(1);
+}