*** empty log message ***

1 files changed, 67 insertions, 1 deletions

diff --git a/src/rotate.c b/src/rotate.c
index 6291819..1a37d21 100644
--- a/src/rotate.c
+++ b/src/rotate.c
@@ -10,6 +10,9 @@ static char rcsid[] = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.3  2008/03/03 06:20:14  james
+ * *** empty log message ***
+ *
  * Revision 1.2  2008/03/03 06:04:42  james
  * *** empty log message ***
  *
@@ -18,13 +21,76 @@ static char rcsid[] = "$Id$";
  *
  */
 
+#include "project.h"
+#include <sys/stat.h>
 
+#define ROTATE_IF_OVER	(4*1024*1024)
+#define NUM_FILES_TO_KEEP 10
+#define GZIP_AFTER 2
 
+void
+rotate_gzip (char *file)
+{
+  switch (fork ())
+    {
+    case 0:
+      break;
+    case -1:
+    default:
+      return;
+    }
 
+  daemon (1, 0);
+  execlp ("gzip", "gzip", file);
+  _exit (-1);
+}
 
+void
+rotate (char *file)
+{
+  char *buf1, *buf2;
+  int i;
+  if (!file)
+    return;
 
+  i = strlen (file) + 32;
+  buf1 = malloc (i);
+  buf2 = malloc (i);
 
-void
+  for (i = NUM_FILES_TO_KEEP; i > 0; ++i)
+    {
+      sprintf (buf1, "%s.%d", file, i - 1);
+      sprintf (buf2, "%s.%d", file, i);
+      rename (buf2, buf1);
+
+      sprintf (buf1, "%s.%d.gz", file, i - 1);
+      sprintf (buf2, "%s.%d.gz", file, i);
+      rename (buf2, buf1);
+    }
+
+  sprintf (buf1, "%s.%d", file, 0);
+  rename (file, buf1);
+
+  sprintf (buf1, "%s.%d", file, GZIP_AFTER);
+
+  if (!access (buf1, R_OK))
+    rotate_gzip (buf1);
+
+  free (buf2);
+  free (buf1);
+}
+
+
+
+int
 rotate_check (char *file)
 {
+  struct stat st;
+  if (!file)
+    return 0;
+  if (stat (file, &st))
+    return 0;
+  if (st.st_size <= ROTATE_IF_OVER)
+    return 0;
+  return 1;
 }