Bug in routed?

Milo Hyson milo at cyberlifelabs.com
Sat Mar 5 23:13:40 UTC 2011

I'm posting this in questions because 1) I'm not sure if it's really a defect, and 2) I'm not sure what other list might be more appropriate.

I've been experimenting with modifications to the i386 platform in STABLE-8 to support 64-bit time_t values. After changing sys/i386/include/_types.h so that __time_t is defined as __int64_t, I received a warning when compiling sbin/routed/if.c that complained about passing a time_t for %ld. The following patch illustrates the change I made to fix this:

--- orig/if.c	2011-03-05 14:25:47.000000000 -0800
+++ new/if.c	2011-03-05 14:26:01.000000000 -0800
@@ -950,8 +950,8 @@
 					trace_act("interface %s has been off"
 						  " %ld seconds; forget it",
-						  (long)now.tv_sec-
-						      ifp->int_data.ts);
+						  (long)(now.tv_sec-
+						      ifp->int_data.ts));

I'm guessing the original intent here was for the result of the subtraction to be passed as a long to trace_act(), but in actuality it's passed as a time_t. The original code compiles just fine if time_t and long are the same size.

Additional note, this particular code fragment does not seem to exist in -current, so the issue appears limited to -stable.

- Milo Hyson
Chief Scientist
CyberLife Labs, Inc.

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