node-varbind-validate.m2i

snmp的源代码,已经在我的ubuntu下编译通过

#############################################################  -*- c -*-
## generic include for XXX. Do not use directly.
##
## $Id: node-varbind-validate.m2i,v 1.4 2004/09/09 23:15:38 rstory Exp $
##
## Tests a netsnmp_variable_list pointer (var) against known
## contstraints. If none are found, calls the user supplied funtion
## ${node}_check_value.
##
## Sets the variable rc to a SNMP_ERR.
##
## Requirements
## ------------
## $m2c_nvv_sizeof: variable name appropriate for a sizeof() call to
##                  check variable length. If NULL, no size check
##                  will be done.
##
########################################################################
@if $m2c_mark_boundary == 1@
/** START code generated by $RCSfile: node-varbind-validate.m2i,v $ $Revision: 1.4 $ */
@end@
########################################################################
##----------------------------------------------------------------------
## setup
##----------------------------------------------------------------------
@if $m2c_paranoid == 1@
netsnmp_assert(rc == SNMP_ERR_NOERROR); /* paranoia */
@end@
##----------------------------------------------------------------------
## syntax specific
##----------------------------------------------------------------------
@ifconf syntax-$node.syntax-varbind-validate.m2i@
@   include syntax-$node.syntax-varbind-validate.m2i@
@else@
##----------------------------------------------------------------------
## Check type
##----------------------------------------------------------------------
## if not generated code or is OCTET_STR, length checks are up to user
@   if ($m2c_node_needlength == 1) || ("x$m2c_nvv_sizeof" eq "x")@
    rc = netsnmp_check_vb_type( var, $node.type );
@   else@
    rc = netsnmp_check_vb_type_and_size( var, $node.type,
        sizeof( $m2c_nvv_sizeof ) );
@   end@
##----------------------------------------------------------------------
## check ENUMS
##----------------------------------------------------------------------
@   if $node.enums == 1@
    if(SNMPERR_SUCCESS == rc) {

##------------------------------------------------------
@      if "$node.perltype" ne "BITS"@
    /* check that the value is one of defined enums */
    if( 1
@         foreach $e $v enum@
@            include m2c_setup_enum.m2i@
 && ( *var->val.integer != $m2c_ename )
@         end@ # for each
        ) {
        rc = SNMP_ERR_WRONGVALUE;
        }
##------------------------------------------------------
@      else@ # BITS
## {
    if(var->val_len > 4) {
        snmp_log(LOG_ERR,"I can not handle BITS > 4 bytes\n");
        rc = SNMP_ERR_GENERR;
    }
    else {
        u_long bits = 0;
        /* check that value is within enum mask */
        memcpy( &bits, var->val.string, var->val_len);
        if( (bits | $m2c_enum_mask) != $m2c_enum_mask)
        rc = SNMP_ERR_WRONGVALUE;
    }
@      end@
    }
##----------------------------------------------------------------------
## check RANGES
##----------------------------------------------------------------------
@   elsif $node.ranges == 1@
@      if ("$node.decl" eq "long") || ("$node.decl" eq "u_long")@
@         eval $m2c_nvv_func = "netsnmp_check_vb_int_range"@
##@         eval $m2c_nvv_rc = "SNMP_ERR_WRONGVALUE"@
@      else@
@         eval $m2c_nvv_func = "netsnmp_check_vb_size_range"@
##@         eval $m2c_nvv_rc = "SNMP_ERR_WRONGLENGTH"@
@      end@
    if(SNMPERR_SUCCESS == rc) {
    /* check that the value is in the defined range(s); inefficent
     * but keeps rc value knowledge in libarary where it belongs. */
    if( 1
@    foreach $a $b range $node@
       && ((rc = $m2c_nvv_func(var, $a,$b)) != SNMP_ERR_NOERROR)
@    end@
     ) {
        ; /* rc set in condition */
    }
   }
@   else@
    /* yyy-rks: anything else we can do here? */
@   end@
@end@ # not syntax specific
##
########################################################################
@if $m2c_mark_boundary == 1@
/** END code generated by $RCSfile: node-varbind-validate.m2i,v $ $Revision: 1.4 $ */
@end@