ospasn1ids.c

mgcp协议源代码。支持多种编码：g711

/*
*########################################################################
*########################################################################
*########################################################################
*                                                               
*   COPYRIGHT (c) 1998, 1999 by TransNexus, LLC                          
*                                                                    
*   This software contains proprietary and confidential information  
*   of TransNexus, LLC. Except as may be set forth in the license    
*   agreement under which this software is supplied, use, disclosure, 
*   or reproduction is prohibited without the prior, express, written
*   consent of TransNexus, LLC.                                      
*                                     
*
*
*
*
*
*
*#########################################################################
*#########################################################################
*#########################################################################
*/

/*
 * ospasn1ids.c - ASN1 defined ID's definitions and functions.
 */

#define OSPC_OSPASN1ID_INCLUDE_STATIC 1 /* Forces inclusion of static */
/* data defined in ospasn1id.h */
#include "osp.h"
#include "ospasn1.h"
#include "ospasn1ids.h"         


/* FUNCTION PROTOTYPES */

/* ---------------------------------------------------------*/
/* Member functions                                         */
/* ---------------------------------------------------------*/

int
OSPPASN1IdGetValue(
    OSPEASN1ID      ospvId,
    unsigned char   **ospvIdValue,
    unsigned        *ospvIdLength)
{
    int errorcode = OSPC_ERR_NO_ERROR;
    OSPTIDINDEX *idxRec = OSPC_OSNULL;

    if ((ospvId < 0) || (ospvId > OSPEID_LISTEND))
    {
        errorcode = OSPC_ERR_ASN1_OBJECTID_NOT_FOUND;   
        OSPM_DBGERRORLOG(errorcode, "Object Id enum out of range");
    } 
    else if (ospvIdValue == OSPC_OSNULL)
    {
        errorcode = OSPC_ERR_ASN1_NULL_POINTER;
        OSPM_DBGERRORLOG(errorcode, 
            "Invalid Null Pointer provided for object Id return");
    }

    if (errorcode == OSPC_ERR_NO_ERROR)
    {
        idxRec = &(ospgASN1IDIndex[ospvId]);
        if (idxRec->Id != ospvId)
        {
            errorcode = OSPC_ERR_ASN1_OBJECTID_MISMATCH;
            OSPM_DBGERRORLOG(errorcode,
                "ID definitions and reference enums are out-of-sync");
        }
    }

    if (errorcode == OSPC_ERR_NO_ERROR)
    {
        *ospvIdValue = idxRec->Value;
        *ospvIdLength = idxRec->ValueLength;
    }

    if (errorcode != OSPC_ERR_NO_ERROR)
    {
        *ospvIdValue = OSPC_OSNULL;
        *ospvIdLength = 0;
    }

    return errorcode;
}