/*Created from the snmputil sample in the Microsoft SDK for NT$Id: winsnmp.c,v 1.9 1998/12/28 09:34:51 sas Exp $ */#include "php.h"#include "internal_functions.h"#if COMPILE_DL#include "../phpdl.h"#include "functions/dl.h"#endif#include "php3_snmp.h"#include <sys/types.h>#include <windows.h>#include <stdio.h>#include <string.h>#include <malloc.h>#if HAVE_SNMP#include <snmp.h>#include <mgmtapi.h>function_entry snmp_functions[] = {    {"snmpget", php3_snmpget, NULL},    {"snmpwalk", php3_snmpwalk, NULL},    {NULL,NULL,NULL}};php3_module_entry snmp_module_entry = {	"SNMP",snmp_functions,NULL,NULL,NULL,NULL,NULL,0,0,0,NULL};#if COMPILE_DLDLEXPORT php3_module_entry *get_module() { return &snmp_module_entry; }#endif#define GET     1#define WALK    2#define GETNEXT 3#define TIMEOUT 6000 /* milliseconds */#define RETRIES 3void _php3_snmp(INTERNAL_FUNCTION_PARAMETERS, int st) {	pval *a1, *a2, *a3;	INT	operation;    LPSTR              agent;    LPSTR              community;    RFC1157VarBindList variableBindings;    LPSNMP_MGR_SESSION session;    INT        timeout = TIMEOUT;    INT        retries = RETRIES;    BYTE       requestType;    AsnInteger errorStatus;    AsnInteger errorIndex;    AsnObjectIdentifier oid;   char        *chkPtr = NULL;	if (getParameters(ht, 3, &a1, &a2, &a3) == FAILURE) {		WRONG_PARAM_COUNT;	}	convert_to_string(a1);	convert_to_string(a2);	convert_to_string(a3);	agent=a1->value.str.val;	community=a2->value.str.val;	operation=st;	SnmpMgrStrToOid(a3->value.str.val, &oid);/*    I've limited this to only one oid, but we can create a   list of oid's here, and expand the function to take multiple   oid's*/    variableBindings.list->name = oid;     variableBindings.list->value.asnType = ASN_NULL;    variableBindings.len = 1;/* Establish a SNMP session to communicate with the remote agent.  The   community, communications timeout, and communications retry count   for the session are also required.*/	if ((session = SnmpMgrOpen(agent, community, timeout, retries)) == NULL){		php3_error(E_WARNING,"error on SnmpMgrOpen %d\n", GetLastError());	}    /* Determine and perform the requested operation.*/    if (operation == GET || operation == GETNEXT){        /* Get and GetNext are relatively simple operations to perform.           Simply initiate the request and process the result and/or           possible error conditions. */        if (operation == GET){            requestType = ASN_RFC1157_GETREQUEST;		} else {            requestType = ASN_RFC1157_GETNEXTREQUEST;		}        /* Request that the API carry out the desired operation.*/		if (!SnmpMgrRequest(session, requestType, &variableBindings,                            &errorStatus, &errorIndex)){            /* The API is indicating an error. */            php3_error(E_WARNING,"error on SnmpMgrRequest %d\n", GetLastError());        } else {            /* The API succeeded, errors may be indicated from the remote               agent. */            if (errorStatus > 0){                php3_error(E_WARNING,"Error: errorStatus=%d, errorIndex=%d\n",                       errorStatus, errorIndex);            } else {                /* Display the resulting variable bindings.*/				UINT i;                char *string = NULL;                for(i=0; i < variableBindings.len; i++)                    {                    SnmpMgrOidToStr(&variableBindings.list[i].name, &string);                    php3_printf("Variable = %s\n", string);                    if (string) SNMP_free(string);                    php3_printf("Value    = ");                    SnmpUtilPrintAsnAny(&variableBindings.list[i].value);                    php3_printf("\n");                    } /* end for() */                }            }        /* Free the variable bindings that have been allocated.*/        SnmpUtilVarBindListFree(&variableBindings);        }    else if (operation == WALK)        {        /* Walk is a common term used to indicate that all MIB variables           under a given OID are to be traversed and displayed.  This is           a more complex operation requiring tests and looping in addition           to the steps for get/getnext above. */        AsnObjectIdentifier root;        AsnObjectIdentifier tempOid;        SnmpUtilOidCpy(&root, &variableBindings.list[0].name);        requestType = ASN_RFC1157_GETNEXTREQUEST;        while(1)            {            if (!SnmpMgrRequest(session, requestType, &variableBindings,                                &errorStatus, &errorIndex)){                /* The API is indicating an error.*/                php3_error(E_WARNING,"error on SnmpMgrRequest %d\n", GetLastError());                break;                }            else                {                /* The API succeeded, errors may be indicated from the remote                   agent.                   Test for end of subtree or end of MIB. */                if (errorStatus == SNMP_ERRORSTATUS_NOSUCHNAME ||                    SnmpUtilOidNCmp(&variableBindings.list[0].name,                                    &root, root.idLength))                    {                    PUTS("End of MIB subtree.\n\n");                    break;                    }                /* Test for general error conditions or sucesss. */                if (errorStatus > 0){                    php3_error(E_ERROR,"Error: errorStatus=%d, errorIndex=%d \n",                           errorStatus, errorIndex);                    break;                    }                else                    {                    /* Display resulting variable binding for this iteration. */                    char *string = NULL;                    SnmpMgrOidToStr(&variableBindings.list[0].name, &string);                    php3_printf("Variable = %s\n", string);                    if (string) SNMP_free(string);                    php3_printf("Value    = ");                    SnmpUtilPrintAsnAny(&variableBindings.list[0].value);                    php3_printf("\n");                    }                } /* end if () */            /* Prepare for the next iteration.  Make sure returned oid is               preserved and the returned value is freed.			*/            SnmpUtilOidCpy(&tempOid, &variableBindings.list[0].name);            SnmpUtilVarBindFree(&variableBindings.list[0]);            SnmpUtilOidCpy(&variableBindings.list[0].name, &tempOid);            variableBindings.list[0].value.asnType = ASN_NULL;            SnmpUtilOidFree(&tempOid);            } /* end while() */        /* Free the variable bindings that have been allocated.*/        SnmpUtilVarBindListFree(&variableBindings);        SnmpUtilOidFree(&root);	} // end if (operation)	/* Close SNMP session with the remote agent.*/	if (!SnmpMgrClose(session)){		php3_error(E_WARNING,"error on SnmpMgrClose %d\n", GetLastError());	}}DLEXPORT void php3_snmpget(INTERNAL_FUNCTION_PARAMETERS) {	_php3_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);}DLEXPORT void php3_snmpwalk(INTERNAL_FUNCTION_PARAMETERS) {	_php3_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU,2);}#endif/* * Local variables: * tab-width: 4 * c-basic-offset: 4 * End: */