X-Git-Url: http://git.vrable.net/?p=cumulus.git;a=blobdiff_plain;f=util.h;h=b55320e90128b432a3121c562a3723b271058baf;hp=38596b5fcbb028d1e023b7534d4264380450f188;hb=86852c7d1d491d73ae9ecc64ee5a8c3dcece4ca0;hpb=974240b635af9cf2b94e2f1f3c02beab662a189d

diff --git a/util.h b/util.h
index 38596b5..b55320e 100644
--- a/util.h
+++ b/util.h
@@ -1,7 +1,6 @@
-/* Cumulus: Smart Filesystem Backup to Dumb Servers
- *
- * Copyright (C) 2007  The Regents of the University of California
- * Written by Michael Vrable <mvrable@cs.ucsd.edu>
+/* Cumulus: Efficient Filesystem Backup to the Cloud
+ * Copyright (C) 2007 The Cumulus Developers
+ * See the AUTHORS file for a list of contributors.
  *
  * 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
@@ -28,6 +27,9 @@
 #include <map>
 #include <string>
 
+std::string string_printf(const char *fmt, ...)
+    __attribute__((format(printf, 1, 2)));
+
 std::string uri_encode(const std::string &in);
 std::string uri_decode(const std::string &in);
 std::string encode_int(long long n, int base=10);
@@ -37,4 +39,25 @@ void cloexec(int fd);
 
 void fatal(std::string msg) __attribute__((noreturn));
 
+/* Date/time string formatting and parsing utility functions.  All data and
+ * methods are static, so this class should not be instantiated. */
+class TimeFormat {
+public:
+    // Abbreviated time format encoded in snapshot file names.
+    static const char FORMAT_FILENAME[];
+    // A timestamp, in UTC, written out in an ISO 8601 format (compatible with
+    // the SQLite datetime function).
+    static const char FORMAT_ISO8601[];
+    // Similar to the above, but including a timezone offset.
+    static const char FORMAT_LOCALTIME[];
+
+    static std::string format(time_t timestamp, const char *format, bool utc);
+
+    static std::string isoformat(time_t timestamp)
+        { return format(timestamp, FORMAT_ISO8601, true); }
+
+private:
+    TimeFormat() { }
+};
+
 #endif // _LBS_TARSTORE_H