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diff --git a/README b/README
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+++ b/README
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+A small program to prefixes the current time a line
+is written to its stdin.
+
+If you use this to generate log files, you can use
+`sort --merge` to create on log file from multiple
+log files.
+
diff --git a/src/timeprefix.c b/src/timeprefix.c
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+/**
+ * timeprefix – Prefix each line with the time it as written
+ * 
+ * Copyright © 2014  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+#include <stdio.h>
+#include <time.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+
+static struct tm* utctime;
+
+
+static void printline(const char* line)
+{
+  struct timespec boottime;
+  time_t realtime;
+  
+  clock_gettime(CLOCK_BOOTTIME, &boottime);
+  realtime = time(NULL);
+  gmtime_r(&realtime, utctime);
+  
+  printf("[%010lu.%04lu %i-%02i-%02i %02i:%02i:%02i UTC] %s",
+	 boottime.tv_sec, boottime.tv_nsec / 100000,
+	 utctime->tm_year + 1900, utctime->tm_mon + 1, utctime->tm_mday,
+	 utctime->tm_hour, utctime->tm_min, utctime->tm_sec,
+	 line);
+  
+  fflush(stdout);
+}
+
+
+int main(int argc, char** argv)
+{
+  size_t buf_size = 512;
+  char* buf = NULL;
+  
+  utctime = malloc(sizeof(struct tm));
+  
+  printline("--- Program started ---\n");
+  
+  buf = malloc(buf_size * sizeof(char));;
+  while (getline(&buf, &buf_size, stdin) != -1)
+    printline(buf);
+  
+  printline("--- Program exited ---\n");
+  
+  free(buf);
+  return 0;
+}
+