f80935e66086e97d29426bb9053c10eae078385b
kent
  Sun Feb 2 16:22:01 2014 -0800
Moving a check on commands against message size to library since in fact it was already implemented twice, and I needed it a third time.
diff --git src/parasol/inc/paraMessage.h src/parasol/inc/paraMessage.h
index 5307e17..c31fd76 100644
--- src/parasol/inc/paraMessage.h
+++ src/parasol/inc/paraMessage.h
@@ -34,49 +34,53 @@
 /* Initialize message with ascii ip address. */
 
 struct paraMessage *pmNew(rudpHost ipAddress, bits16 port);
 /* Create new message in memory.  ipAddress is in host order.  */
 
 struct paraMessage *pmNewFromName(char *hostName, bits16 port);
 /* Create new message in memory */
 
 void pmFree(struct paraMessage **pPm);
 /* Free up message. */
 
 void pmClear(struct paraMessage *pm);
 /* Clear out data buffer. */
 
 void pmSet(struct paraMessage *pm, char *message);
-/* Set message in data buffer. */
+/* Set message in data buffer. Aborts if message too long (rudpMaxSize or more). */
 
 void pmPrintf(struct paraMessage *pm, char *format, ...)
 /* Print message into end of data buffer.  Warn if it goes
  * past limit. */
 #if defined(__GNUC__)
 __attribute__((format(printf, 2, 3)))
 #endif
 ;
 
 
 boolean pmSend(struct paraMessage *pm, struct rudp *ru);
 /* Send out message.  Print warning message and return FALSE if
  * there is a problem. */
 
 boolean pmSendString(struct paraMessage *pm, struct rudp *ru, char *string);
 /* Send out given message strng.  Print warning message and return FALSE if
  * there is a problem. */
 
+void pmCheckCommandSize(char *string, int len);
+/* Check that string of given len is not too long to fit into paraMessage.
+ * If it is, abort with good error message assuming it was a command string */
+
 boolean pmReceive(struct paraMessage *pm, struct rudp *ru);
 /* Receive message.  Print warning message and return FALSE if
  * there is a problem. */
 
 boolean pmReceiveTimeOut(struct paraMessage *pm, struct rudp *ru, int timeOut);
 /* Wait up to timeOut microseconds for message.  To wait forever
  * set timeOut to zero. */
 
 void pmmInit(struct paraMultiMessage *pmm, struct paraMessage *pm, struct in_addr sin_addr);
 /* Initialize structure for multi-message response  */
 
 boolean pmmReceiveTimeOut(struct paraMultiMessage *pmm, struct rudp *ru, int timeOut);
 /* Multi-message receive
  * Wait up to timeOut microseconds for message.  To wait forever
  * set timeOut to zero.  For multi-message response