Avoid crashing if Rime/Chameleon is not initialized when Rime code is run
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@ -28,7 +28,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: chameleon.c,v 1.3 2008/03/03 20:20:33 adamdunkels Exp $
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* $Id: chameleon.c,v 1.4 2008/07/03 23:13:31 adamdunkels Exp $
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*/
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/**
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@ -150,6 +150,11 @@ chameleon_output(struct channel *c)
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int
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chameleon_hdrsize(const struct rimebuf_attrlist attrlist[])
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{
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return header_module->hdrsize(attrlist);
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if(header_module != NULL &&
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header_module->hdrsize != NULL) {
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return header_module->hdrsize(attrlist);
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} else {
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return 0;
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}
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}
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/*---------------------------------------------------------------------------*/
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