[snmp] Fix asn_build calls to pass correct variable sizes (fixes 64-bit issues)

[snmp] Fix asn_build calls to pass correct variable sizes (fixes 64-bit issues)

2006-09-26 Pierre-Yves Ritschard <pierre-yves@spootnik.org>

	* smux.c: (smux_open,smux_trap,smux_register) Fix various
	  asn_build_* calls to pass the proper length in the final
	  argument: use sizeof(<variable>) instead of sizeof(<type>),
	  since there were several inconsistencies between the actual
	  variable type and the size that was passed.  This should
	  fix some problems on 64-bit architectures where sizeof(int)
	  != sizeof(long).