Merged revisions 261093-261094 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r261093 | tilghman | 2010-05-04 18:36:53 -0500 (Tue, 04 May 2010) | 7 lines
  
  Protect against overflow, when calculating how long to wait for a frame.
  
  (closes issue #17128)
   Reported by: under
   Patches: 
         d.diff uploaded by under (license 914)
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  r261094 | tilghman | 2010-05-04 18:47:08 -0500 (Tue, 04 May 2010) | 2 lines
  
  Add a tiny corner case to the previous commit
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@261095 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/channel.c

@@ -2630,10 +2630,15 @@ struct ast_channel *ast_waitfor_nandfds(struct ast_channel **c, int n, int *fds,
 	}
 	/* Wait full interval */
 	rms = *ms;
-	if (!ast_tvzero(whentohangup)) {
+	/* INT_MAX, not LONG_MAX, because it matters on 64-bit */
+	if (!ast_tvzero(whentohangup) && whentohangup.tv_sec < INT_MAX / 1000) {
 		rms = whentohangup.tv_sec * 1000 + whentohangup.tv_usec / 1000;              /* timeout in milliseconds */
-		if (*ms >= 0 && *ms < rms)		/* original *ms still smaller */
+		if (*ms >= 0 && *ms < rms) {                                                 /* original *ms still smaller */
 			rms =  *ms;
+		}
+	} else if (!ast_tvzero(whentohangup) && rms < 0) {
+		/* Tiny corner case... call would need to last >24 days */
+		rms = INT_MAX;
 	}
 	/*
 	 * Build the pollfd array, putting the channels' fds first,