/**
 *  smb/server-message-block comunication methods/rpc eval methods for GOPHER
 */
#
include "include/tlv.h"

/*
 * smb_extract_tlv() - Parses arbitrary data passed to it. Determines which method
 *                   to eval, and calls it appropriately. Utilizes a rpc-like
 *                   procedure to determine the function call.
 */
int smb_extract_tlv(void * phandle) {

    if (!phandle) {
        return -1;
    }

    uint32_t dwlength = 0, total = 0;
    struct tlv_header hdr = * (struct tlv_header * ) malloc(sizeof h);
    struct tlv_packet * p = tlv_packet_new(TLV_PACKET_TYPE_REQUEST, 0);

    while (dwlength != 8) {
        if (!ReadFile(phandle, (char * ) & h, (DWORD) 8, (PDWORD) & dwlength, NULL)) {
            goto err;
        };
    };

    *(struct tlv_header * ) p = h;
    dwlength = 0;

    while (total < p - > h.len - TLV_MIN_LENGTH) {
        if (!ReadFile(phandle, (char * )(p + sizeof(struct tlv_header) + total),
                (DWORD)(p - > h.len - TLV_MIN_LENGTH - total),
                (PDWORD) & dwlength, NULL)) {

            goto err;
        }
        total += dwlength;
    }

    err:
        if ((struct tlv_header * ) & hdr != NULL) {
            free(hdr);
        };

    if (p != NULL) {
        tlv_packet_free(p);
    };
};