/*
 * This file was generated automatically by ExtUtils::ParseXS version 2.2210 from the
 * contents of TrapReceiver.xs. Do not edit this file, edit TrapReceiver.xs instead.
 *
 *	ANY CHANGES MADE HERE WILL BE LOST! 
 *
 */

#line 1 "TrapReceiver.xs"
/* -*- c -*- */
#if defined(_WIN32) && !defined(_WIN32_WINNT)
#define _WIN32_WINNT 0x501
#endif

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include "ppport.h"

#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>

#include "perl_snmptrapd.h"

#include "const-c.inc"

typedef struct trapd_cb_data_s {
   SV *perl_cb;
} trapd_cb_data;

typedef struct netsnmp_oid_s {
    oid                 *name;
    size_t               len;
    oid                  namebuf[ MAX_OID_LEN ];
} netsnmp_oid;

int   perl_trapd_handler( netsnmp_pdu           *pdu,
                          netsnmp_transport     *transport,
                          netsnmp_trapd_handler *handler)
{
    trapd_cb_data *cb_data;
    SV *pcallback;
    netsnmp_variable_list *vb;
    netsnmp_oid *o;
    SV **tmparray;
    int i, c = 0;
    u_char *outbuf;
    size_t ob_len = 0, oo_len = 0;
    AV *varbinds;
    HV *pduinfo;
    int noValuesReturned;
    int callingCFfailed = 0;
    int result = NETSNMPTRAPD_HANDLER_OK;
    netsnmp_pdu * v2pdu = NULL;

    dSP;
    ENTER;
    SAVETMPS;

    if (!pdu || !handler)
        return 0;

    /* nuke v1 PDUs */
    if (pdu->command == SNMP_MSG_TRAP) {
        v2pdu = convert_v1pdu_to_v2(pdu);
        pdu = v2pdu;
    }

    cb_data = handler->handler_data;
    if (!cb_data || !cb_data->perl_cb)
        return 0;

    pcallback = cb_data->perl_cb;

    /* get PDU related info */
    pduinfo = newHV();
#define STOREPDU(n, v) (void)hv_store(pduinfo, n, strlen(n), v, 0)
#define STOREPDUi(n, v) STOREPDU(n, newSViv(v))
#define STOREPDUs(n, v) STOREPDU(n, newSVpv(v, 0))
    STOREPDUi("version", pdu->version);
    STOREPDUs("notificationtype", ((pdu->command == SNMP_MSG_INFORM) ? "INFORM":"TRAP"));
    STOREPDUi("requestid", pdu->reqid);
    STOREPDUi("messageid", pdu->msgid);
    STOREPDUi("transactionid", pdu->transid);
    STOREPDUi("errorstatus", pdu->errstat);
    STOREPDUi("errorindex", pdu->errindex);
    if (pdu->version == 3) {
        STOREPDUi("securitymodel", pdu->securityModel);
        STOREPDUi("securitylevel", pdu->securityLevel);
        STOREPDU("contextName",
                 newSVpv(pdu->contextName, pdu->contextNameLen));
        STOREPDU("contextEngineID",
                 newSVpv((char *) pdu->contextEngineID,
                                    pdu->contextEngineIDLen));
        STOREPDU("securityEngineID",
                 newSVpv((char *) pdu->securityEngineID,
                                    pdu->securityEngineIDLen));
        STOREPDU("securityName",
                 newSVpv((char *) pdu->securityName, pdu->securityNameLen));
    } else {
        STOREPDU("community",
                 newSVpv((char *) pdu->community, pdu->community_len));
    }

    if (transport && transport->f_fmtaddr) {
        char *tstr = transport->f_fmtaddr(transport, pdu->transport_data,
                                          pdu->transport_data_length);
        STOREPDUs("receivedfrom", tstr);
        netsnmp_free(tstr);
    }


    /*
     * collect OID objects in a temp array first
     */
    /* get VARBIND related info */
    i = count_varbinds(pdu->variables);
    tmparray = malloc(sizeof(*tmparray) * i);

    for(vb = pdu->variables; vb; vb = vb->next_variable) {

        /* get the oid */
        o = malloc(sizeof(netsnmp_oid));
        o->name = o->namebuf;
        o->len = vb->name_length;
        memcpy(o->name, vb->name, vb->name_length * sizeof(oid));

#undef CALL_EXTERNAL_OID_NEW

#ifdef CALL_EXTERNAL_OID_NEW
        {
        SV *arg;
        SV *rarg;

        PUSHMARK(sp);

        rarg = sv_2mortal(newSViv((IV) 0));
        arg = sv_2mortal(newSVrv(rarg, "netsnmp_oidPtr"));
        sv_setiv(arg, (IV) o);
        XPUSHs(rarg);

        PUTBACK;
        i = perl_call_pv("NetSNMP::OID::newwithptr", G_SCALAR);
        SPAGAIN;

        if (i != 1) {
            snmp_log(LOG_ERR, "unhandled OID error.\n");
            /* ack XXX */
        }
        /* get the value */
        tmparray[c++] = POPs;
        SvREFCNT_inc(tmparray[c-1]);
        PUTBACK;
        }
#else /* build it and bless ourselves */
        {
            HV *hv = newHV();
            SV *rv = newRV_noinc((SV *) hv);
            SV *rvsub = newRV_noinc((SV *) newSViv((UV) o));
            rvsub = sv_bless(rvsub, gv_stashpv("netsnmp_oidPtr", 1));
            (void)hv_store(hv, "oidptr", 6,  rvsub, 0);
            rv = sv_bless(rv, gv_stashpv("NetSNMP::OID", 1));
            tmparray[c++] = rv;
        }
        
#endif /* build oid ourselves */
    }

    /*
     * build the varbind lists
     */
    varbinds = newAV();
    for(vb = pdu->variables, i = 0; vb; vb = vb->next_variable, i++) {
        /* push the oid */
        AV *vba;
        vba = newAV();


        /* get the value */
        outbuf = NULL;
        ob_len = 0;
        oo_len = 0;
	sprint_realloc_by_type(&outbuf, &ob_len, &oo_len, 1,
                               vb, 0, 0, 0);

        av_push(vba,tmparray[i]);
        av_push(vba,newSVpvn((char *) outbuf, oo_len));
        netsnmp_free(outbuf);
        av_push(vba,newSViv(vb->type));
        av_push(varbinds, (SV *) newRV_noinc((SV *) vba));
    }

    PUSHMARK(sp);

    /* store the collected information on the stack */
    XPUSHs(sv_2mortal(newRV_noinc((SV*) pduinfo)));
    XPUSHs(sv_2mortal(newRV_noinc((SV*) varbinds)));

    /* put the stack back in order */
    PUTBACK;

    /* actually call the callback function */
    if (SvTYPE(pcallback) == SVt_PVCV) {
        noValuesReturned = perl_call_sv(pcallback, G_SCALAR);
        /* XXX: it discards the results, which isn't right */
    } else if (SvROK(pcallback) && SvTYPE(SvRV(pcallback)) == SVt_PVCV) {
        /* reference to code */
        noValuesReturned = perl_call_sv(SvRV(pcallback), G_SCALAR);
    } else {
        snmp_log(LOG_ERR, " tried to call a perl function but failed to understand its type: (ref = %p, svrok: %lu, SVTYPE: %lu)\n", pcallback, (unsigned long)SvROK(pcallback), (unsigned long)SvTYPE(pcallback));
	callingCFfailed = 1;
    }

    if (!callingCFfailed) {
      SPAGAIN;

      if ( noValuesReturned == 0 ) {
        snmp_log(LOG_WARNING, " perl callback function %p did not return a scalar, assuming %d (NETSNMPTRAPD_HANDLER_OK)\n", pcallback, NETSNMPTRAPD_HANDLER_OK);
      }
      else {
	SV *rv = POPs;

	if (SvTYPE(rv) != SVt_IV) {
	  snmp_log(LOG_WARNING, " perl callback function %p returned a scalar of type %lu instead of an integer, assuming %d (NETSNMPTRAPD_HANDLER_OK)\n", pcallback, (unsigned long)SvTYPE(rv), NETSNMPTRAPD_HANDLER_OK);
	}
	else {
	  int rvi = (IV)SvIVx(rv);

	  if ((NETSNMPTRAPD_HANDLER_OK <= rvi) && (rvi <= NETSNMPTRAPD_HANDLER_FINISH)) {
	    snmp_log(LOG_DEBUG, " perl callback function %p returns %d\n", pcallback, rvi);
	    result = rvi;
	  }
	  else {
	    snmp_log(LOG_WARNING, " perl callback function %p returned an invalid scalar integer value (%d), assuming %d (NETSNMPTRAPD_HANDLER_OK)\n", pcallback, rvi, NETSNMPTRAPD_HANDLER_OK);
	  }
	}
      }

      PUTBACK;
    }

#ifdef DUMPIT
    fprintf(stderr, "DUMPDUMPDUMPDUMPDUMPDUMP\n");
    sv_dump(pduinfo);
    fprintf(stderr, "--------------------\n");
    sv_dump(varbinds);
#endif
    
    /* svREFCNT_dec((SV *) pduinfo); */
#ifdef NOT_THIS
    {
        SV *vba;
        while(vba = av_pop(varbinds)) {
            av_undef((AV *) vba);
        }
    }
    av_undef(varbinds);
#endif    
    free(tmparray);

      if (v2pdu) {
              snmp_free_pdu(v2pdu);
      }

    FREETMPS;
    LEAVE;
    return result;
}

#line 273 "TrapReceiver.c"
#ifndef PERL_UNUSED_VAR
#  define PERL_UNUSED_VAR(var) if (0) var = var
#endif

#ifndef PERL_ARGS_ASSERT_CROAK_XS_USAGE
#define PERL_ARGS_ASSERT_CROAK_XS_USAGE assert(cv); assert(params)

/* prototype to pass -Wmissing-prototypes */
STATIC void
S_croak_xs_usage(pTHX_ const CV *const cv, const char *const params);

STATIC void
S_croak_xs_usage(pTHX_ const CV *const cv, const char *const params)
{
    const GV *const gv = CvGV(cv);

    PERL_ARGS_ASSERT_CROAK_XS_USAGE;

    if (gv) {
        const char *const gvname = GvNAME(gv);
        const HV *const stash = GvSTASH(gv);
        const char *const hvname = stash ? HvNAME(stash) : NULL;

        if (hvname)
            Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params);
        else
            Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params);
    } else {
        /* Pants. I don't think that it should be possible to get here. */
        Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params);
    }
}
#undef  PERL_ARGS_ASSERT_CROAK_XS_USAGE

#ifdef PERL_IMPLICIT_CONTEXT
#define croak_xs_usage(a,b)	S_croak_xs_usage(aTHX_ a,b)
#else
#define croak_xs_usage		S_croak_xs_usage
#endif

#endif

/* NOTE: the prototype of newXSproto() is different in versions of perls,
 * so we define a portable version of newXSproto()
 */
#ifdef newXS_flags
#define newXSproto_portable(name, c_impl, file, proto) newXS_flags(name, c_impl, file, proto, 0)
#else
#define newXSproto_portable(name, c_impl, file, proto) (PL_Sv=(SV*)newXS(name, c_impl, file), sv_setpv(PL_Sv, proto), (CV*)PL_Sv)
#endif /* !defined(newXS_flags) */

#line 325 "TrapReceiver.c"

/* INCLUDE:  Including 'const-xs.inc' from 'TrapReceiver.xs' */


XS(XS_NetSNMP__TrapReceiver_constant); /* prototype to pass -Wmissing-prototypes */
XS(XS_NetSNMP__TrapReceiver_constant)
{
#ifdef dVAR
    dVAR; dXSARGS;
#else
    dXSARGS;
#endif
    if (items != 1)
       croak_xs_usage(cv,  "sv");
    PERL_UNUSED_VAR(ax); /* -Wall */
    SP -= items;
    {
#line 4 "./const-xs.inc"
#ifdef dXSTARG
	dXSTARG; /* Faster if we have it.  */
#else
	dTARGET;
#endif
	STRLEN		len;
        int		type;
	IV		iv;
	/* NV		nv;	Uncomment this if you need to return NVs */
	/* const char	*pv;	Uncomment this if you need to return PVs */
#line 354 "TrapReceiver.c"
	SV *	sv = ST(0);
	const char *	s = SvPV(sv, len);
#line 18 "./const-xs.inc"
        /* Change this to constant(aTHX_ s, len, &iv, &nv);
           if you need to return both NVs and IVs */
	type = constant(aTHX_ s, len, &iv);
      /* Return 1 or 2 items. First is error message, or undef if no error.
           Second, if present, is found value */
        switch (type) {
        case PERL_constant_NOTFOUND:
          sv =
	    sv_2mortal(newSVpvf("%s is not a valid NetSNMP::TrapReceiver macro", s));
          PUSHs(sv);
          break;
        case PERL_constant_NOTDEF:
          sv = sv_2mortal(newSVpvf(
	    "Your vendor has not defined NetSNMP::TrapReceiver macro %s, used",
				   s));
          PUSHs(sv);
          break;
        case PERL_constant_ISIV:
          EXTEND(SP, 1);
          PUSHs(&PL_sv_undef);
          PUSHi(iv);
          break;
	/* Uncomment this if you need to return NOs
        case PERL_constant_ISNO:
          EXTEND(SP, 1);
          PUSHs(&PL_sv_undef);
          PUSHs(&PL_sv_no);
          break; */
	/* Uncomment this if you need to return NVs
        case PERL_constant_ISNV:
          EXTEND(SP, 1);
          PUSHs(&PL_sv_undef);
          PUSHn(nv);
          break; */
	/* Uncomment this if you need to return PVs
        case PERL_constant_ISPV:
          EXTEND(SP, 1);
          PUSHs(&PL_sv_undef);
          PUSHp(pv, strlen(pv));
          break; */
	/* Uncomment this if you need to return PVNs
        case PERL_constant_ISPVN:
          EXTEND(SP, 1);
          PUSHs(&PL_sv_undef);
          PUSHp(pv, iv);
          break; */
	/* Uncomment this if you need to return SVs
        case PERL_constant_ISSV:
          EXTEND(SP, 1);
          PUSHs(&PL_sv_undef);
          PUSHs(sv);
          break; */
	/* Uncomment this if you need to return UNDEFs
        case PERL_constant_ISUNDEF:
          break; */
	/* Uncomment this if you need to return UVs
        case PERL_constant_ISUV:
          EXTEND(SP, 1);
          PUSHs(&PL_sv_undef);
          PUSHu((UV)iv);
          break; */
	/* Uncomment this if you need to return YESs
        case PERL_constant_ISYES:
          EXTEND(SP, 1);
          PUSHs(&PL_sv_undef);
          PUSHs(&PL_sv_yes);
          break; */
        default:
          sv = sv_2mortal(newSVpvf(
	    "Unexpected return type %d while processing NetSNMP::TrapReceiver macro %s, used",
               type, s));
          PUSHs(sv);
        }
#line 431 "TrapReceiver.c"
	PUTBACK;
	return;
    }
}


/* INCLUDE: Returning to 'TrapReceiver.xs' from 'const-xs.inc' */


XS(XS_NetSNMP__TrapReceiver_register); /* prototype to pass -Wmissing-prototypes */
XS(XS_NetSNMP__TrapReceiver_register)
{
#ifdef dVAR
    dVAR; dXSARGS;
#else
    dXSARGS;
#endif
    if (items != 2)
       croak_xs_usage(cv,  "regoid, perlcallback");
    {
	char *	regoid = (char *)SvPV_nolen(ST(0));
	SV *	perlcallback = ST(1);
#line 273 "TrapReceiver.xs"
	oid myoid[MAX_OID_LEN];
	size_t myoid_len = MAX_OID_LEN;
        trapd_cb_data *cb_data;
        netsnmp_trapd_handler *handler = NULL;
#line 459 "TrapReceiver.c"
	int	RETVAL;
	dXSTARG;
#line 278 "TrapReceiver.xs"
        {
            if (!regoid || !perlcallback) {
                RETVAL = 0;
                return;
            }
            if (strcmp(regoid,"all") == 0) {
                handler = 
                    netsnmp_add_global_traphandler(NETSNMPTRAPD_POST_HANDLER,
                                                   perl_trapd_handler);
            } else if (strcmp(regoid,"default") == 0) {
                handler = 
                    netsnmp_add_default_traphandler(perl_trapd_handler);
            } else if (!snmp_parse_oid(regoid, myoid, &myoid_len)) {
                snmp_log(LOG_ERR,
                         "Failed to parse oid for perl registration: %s\n",
                         regoid);
                RETVAL = 0;
                return;
            } else {
                handler = 
                    netsnmp_add_traphandler(perl_trapd_handler,
                                            myoid, myoid_len);
            }

            if (handler) {
                cb_data = malloc(sizeof(trapd_cb_data));
                cb_data->perl_cb = newSVsv(perlcallback);
                handler->handler_data = cb_data;
                handler->authtypes = (1 << VACM_VIEW_EXECUTE);
                RETVAL = 1;
            } else {
                RETVAL = 0;
            }
        }
#line 497 "TrapReceiver.c"
	XSprePUSH; PUSHi((IV)RETVAL);
    }
    XSRETURN(1);
}

#ifdef __cplusplus
extern "C"
#endif
XS(boot_NetSNMP__TrapReceiver); /* prototype to pass -Wmissing-prototypes */
XS(boot_NetSNMP__TrapReceiver)
{
#ifdef dVAR
    dVAR; dXSARGS;
#else
    dXSARGS;
#endif
#if (PERL_REVISION == 5 && PERL_VERSION < 9)
    char* file = __FILE__;
#else
    const char* file = __FILE__;
#endif

    PERL_UNUSED_VAR(cv); /* -W */
    PERL_UNUSED_VAR(items); /* -W */
#ifdef XS_APIVERSION_BOOTCHECK
    XS_APIVERSION_BOOTCHECK;
#endif
    XS_VERSION_BOOTCHECK ;

        (void)newXSproto_portable("NetSNMP::TrapReceiver::constant", XS_NetSNMP__TrapReceiver_constant, file, "$");
        (void)newXSproto_portable("NetSNMP::TrapReceiver::register", XS_NetSNMP__TrapReceiver_register, file, "$$");
#if (PERL_REVISION == 5 && PERL_VERSION >= 9)
  if (PL_unitcheckav)
       call_list(PL_scopestack_ix, PL_unitcheckav);
#endif
    XSRETURN_YES;
}

